High-temperature and high-humidity flue gas generating device

Abstract

The embodiment of the invention provides a high-temperature and high-humidity flue gas generation device. A first carrier gas pipeline is provided with a first carrier gas flow controller and a permeation humidification module; the standard gas pipeline is provided with a standard gas flow controller; the second carrier gas pipeline is provided with a second carrier gas flow controller; the output ends of the first carrier gas pipeline and the standard gas pipeline are communicated with the input end of the gas mixing pipe; the output end of the gas mixing pipe is communicated with the input end of the target gas pipeline; a water bath temperature control part of the permeation humidification module heats the carrier gas to a first target temperature, wherein the first target temperature is close to the upper limit of the working temperature range of the dew-point instrument; a target gas temperature control part on the target gas pipeline heats the target gas to a second target temperature higher than the first target temperature; the control module is used for controlling the first carrier gas flow controller to convey carrier gas with fixed flow, adjusting the carrier gas flow conveyed by the second carrier gas flow controller and adjusting the standard gas flow conveyed by the standard gas flow controller so as to adjust the humidity and the concentration of target gas.

Description

Technical Field

[0001] The present application relates to the field of standard gas control, and in particular to a high-temperature and high-humidity flue gas generating device. Background Art

[0002] Flue gas emissions from burning coal, garbage, etc. cause serious environmental pollution. SO in flue gas 2 , CO 2 、NO x NH 3 Gases such as chlorine and chlorine seriously endanger human health. The state has issued corresponding laws and policies to strictly manage flue gas emissions and strictly control the emission concentration of corresponding harmful gases in flue gas. Flue gas monitoring is an indispensable project in atmospheric environmental monitoring. It is a basic means to identify key pollution sources and monitor and control pollution sources.

[0003] Flue gas analyzers can be used to monitor the content of pollutants such as sulfide and nitrogen oxide in flue gas. In order to calibrate the flue gas analyzer, a flue gas generator is required. The flue gas generator can output simulated flue gas with specific composition and concentration to calibrate the flue gas analyzer.

[0004] The flue gas temperature generated in actual production usually reaches above 100°C, or even exceeds 200°C, and the water content can reach above 20% (volume ratio). Therefore, the simulated flue gas output by the flue gas generator should also reach the corresponding high temperature and high humidity, so that the temperature and humidity of the simulated flue gas are consistent with the actual flue gas, so that the flue gas analyzer can be calibrated more accurately. Chinese patent application number 202222684978.7 discloses a high-temperature water-containing standard gas generator (i.e., a flue gas generator), such as Figure 1As shown, it includes standard gas 12, pressure reducing valve 11, gas mass flow meter 25, gas mass flow meter 16, water tank 13, high-precision metering pump 9, liquid mass flow meter 7, atomizer 14, evaporator 10, thermostat 3 and high-power high-temperature heating rod 16. The two standard gases 12 are connected to gas mass flow meter 25 and gas mass flow meter 16 respectively through pressure reducing valve 11, and the two gas mass flow meters are connected to evaporator 10 respectively. Atomizer 14 is arranged in evaporator 10, and water tank 13 is connected to atomizer 14 through high-precision metering pump 9 and liquid mass flow meter 7. High-power high-temperature heating rod 16 is arranged in evaporator 10, and thermostat 3 is electrically connected to high-power high-temperature heating rod 16. The humidity of the output high-temperature water-containing standard gas (i.e. simulated flue gas) can be calculated by the flow value of gas mass flow meter 25, gas mass flow meter 16 and liquid mass flow meter 7. The utility model can prepare a water-containing standard gas with a volume of 0-40% Vol at a high temperature of 160° C. However, the prior art heats and humidifies simultaneously in the evaporator 10, and requires simultaneous control of temperature and humidity, resulting in low control accuracy, and the humidity and concentration accuracy of the generated water-containing standard gas is not high enough.

[0005] The osmotic humidification module is a commonly used humidification device. For example, Chinese invention patent application number 200560016520.0 discloses a device for delivering water vapor to gas (i.e., an osmotic humidification module). Figure 2 As shown, it includes: a plurality of hollow fiber membranes 135 (equivalent to permeation tubes), each fiber membrane 135 defines a channel for gas to flow from the upstream end of each channel to the downstream end of each channel; an outer cover 210, which encloses the hollow fiber membranes 135 and has an air inlet and an air outlet 110, the air inlet is positioned to lead air to the upstream end of each of the channels of the hollow fiber membranes 135, and the air outlet 110 is positioned to be suitable for leading air out of the downstream end of each of the channels of the hollow fiber membranes 135. The outer cover 210 has a water inlet 125, which is positioned to be suitable for leading water to the outer surface of the hollow fiber membrane 135; and a water outlet 130, which is positioned to be suitable for leading water out of the outer cover. The permeation humidification module in the prior art is used at room temperature. The humidification capacity of the permeation humidification device at room temperature is small, and it is difficult to meet the high humidity requirements of the flue gas generated by the high-temperature and high-humidity flue gas generating device. Summary of the invention

[0006] An embodiment of the present application provides a high-temperature and high-humidity flue gas generating device for controlling a standard gas device to calibrate a gas analyzer such as an extraction-type gas analyzer.

[0007] The embodiment of the present application provides a high-temperature and high-humidity flue gas generating device, which includes: a first carrier gas pipeline, a second carrier gas pipeline, a standard gas pipeline, a target gas pipeline and a gas mixing pipe;

[0008] The input end of the first carrier gas pipeline is used to input carrier gas, and a first carrier gas flow controller and a permeation humidification module are provided on the first carrier gas pipeline. The permeation humidification module is arranged downstream of the first carrier gas flow controller, and the first carrier gas flow controller is used to control the flow rate of the carrier gas delivered to the permeation humidification module, and the permeation humidification module is used to humidify the carrier gas flowing through the permeation humidification module;

[0009] The input end of the standard gas pipeline is used to input standard gas, and a standard gas flow controller is provided on the standard gas pipeline, and the standard gas flow controller is used to control the flow of the standard gas input into the standard gas pipeline;

[0010] The input end of the second carrier gas pipeline is used to input carrier gas, and the output end of the second carrier gas pipeline is arranged downstream of the standard gas flow controller; a second carrier gas flow controller is arranged on the second carrier gas pipeline;

[0011] The output ends of the first carrier gas pipeline and the standard gas pipeline are respectively connected to the input end of the gas mixing pipe, and the output end of the gas mixing pipe is connected to the input end of the target gas pipeline. The gas mixing pipe is used to fully mix the carrier gas and the standard gas to form a target gas, and transport the target gas to the target gas pipeline;

[0012] The osmotic humidification module includes a water bath temperature control component, and the water bath temperature control component is used to heat the carrier gas flowing through the osmotic humidification module to a first target temperature, and the first target temperature is close to the upper limit of the working temperature range of the dew point meter;

[0013] The target gas pipeline is provided with a target gas temperature control component, and the target gas temperature control component is used to heat the target gas to a second target temperature; wherein the second target temperature is greater than the first target temperature;

[0014] It also includes a control module, which is electrically connected to the first carrier gas flow controller, the second carrier gas flow controller and the standard gas flow controller. The control module controls the first carrier gas flow controller to adjust the humidity and concentration of the target gas by delivering a fixed flow of carrier gas to the permeation humidification module, adjusting the carrier gas flow delivered by the second carrier gas flow controller, and adjusting the standard gas flow delivered by the standard gas flow controller.

[0015] In an optional implementation manner of the present application, the second target temperature is greater than 100°C.

[0016] In an optional embodiment of the present application, the osmotic humidification module further includes a water bath, an osmotic tube and a water pump, and the osmotic tube is disposed in the water bath;

[0017] The permeation tube comprises an inner tube and an outer tube sleeved on the outer side of the inner tube, a water flow channel for passing water is formed between the outer tube and the inner tube, and an air flow channel for passing carrier gas is formed in the inner tube;

[0018] The water pump is electrically connected to the control module and communicated with the water flow channel. The control module is used to control the water pump to transport water into the water flow channel. The first carrier gas pipeline is communicated with the air flow channel.

[0019] In an optional embodiment of the present application, the osmotic humidification module further includes a water bath, an osmotic tube and a pressurized water pump, and the osmotic tube is disposed in the water bath;

[0020] The permeation tube comprises an inner tube and an outer tube sleeved on the outer side of the inner tube, a water flow channel for passing water is formed between the outer tube and the inner tube, and an air flow channel for passing carrier gas is formed in the inner tube;

[0021] The pressurized water pump is electrically connected to the control module, and the control module is used to control the pressurized water pump to adjust the water pressure in the water flow channel of the permeation tube; the first carrier gas pipeline is connected to the air flow channel.

[0022] In an optional embodiment of the present application, the osmotic humidification module further includes a water bath, an osmotic tube and an air pressure control component, and the water bath is a sealed structure;

[0023] The permeation tube is disposed in the water bath, and the permeation tube is connected to the first carrier gas pipeline;

[0024] The air pressure control component is communicated with the space above the water surface in the water bath, and the air pressure control component is used to control the air pressure in the space above the water surface in the water bath.

[0025] In an optional embodiment of the present application, the air pressure control component includes an air pressure controller and a solenoid valve, the water bath is provided with an air inlet and an air outlet, the air inlet and the air outlet are connected to the space above the water surface in the water bath, the air inlet is connected to the air pressure controller, and the air outlet is connected to the solenoid valve;

[0026] The solenoid valve and the air pressure controller are electrically connected to the control module, and the control module is used to control the opening and closing of the solenoid valve, and control the air pressure controller to adjust the air pressure of the space above the water surface in the water bath.

[0027] In an optional embodiment of the present application, the osmotic humidification module further includes a water bath temperature detector, which is disposed in the water bath box and is used to detect the water bath temperature in the water bath box;

[0028] The control module is electrically connected to the water bath temperature detector and is used to control the water bath temperature control component to adjust the water bath temperature in the water bath box according to the deviation between the water bath temperature detected by the water bath temperature detector and the first target temperature.

[0029] In an optional embodiment of the present application, a heat preservation module is further included, and the heat preservation module includes:

[0030] A first heat preservation module, wherein the permeation humidification module is arranged in the first heat preservation module;

[0031] A second heat preservation module, wherein the gas mixing pipe is arranged in the second heat preservation module;

[0032] A third heat preservation module, wherein the target air temperature control component is arranged in the third heat preservation module.

[0033] In an optional embodiment of the present application, the present invention further includes: a heat preservation module and a first connecting component, wherein the first connecting component is disposed in the heat preservation module, and the output end of the target gas pipeline is connected to the first connecting component;

[0034] The heat preservation module has a side wall W, and a mounting hole for connecting the first connecting component with the outside is provided on the side wall W, and the mounting hole connects the inner and outer sides of the side wall W;

[0035] The outer side of the side wall W is also provided with a heat preservation sleeve corresponding to the position of the mounting hole;

[0036] The first connecting component is used to connect to a probe of a gas analyzer passing through the thermal insulation sleeve and the mounting hole.

[0037] In an optional implementation of the present application, the insulation sleeve is detachably connected to the side wall W.

[0038] In an optional implementation manner of the present application, a fixing groove is provided on the outer side wall of the thermal insulation sleeve;

[0039] A mounting seat corresponding to the fixing groove is arranged on the side wall W, and the mounting hole is arranged on the mounting seat or the mounting seat has an opening corresponding to the mounting hole; the mounting hole or the inner side wall of the opening of the mounting seat is provided with a mounting piece corresponding to the fixing groove on the insulation sleeve, the mounting piece can be inserted into the fixing groove to fix the insulation sleeve on the mounting seat, and the mounting piece can be separated from the fixing groove to remove the insulation sleeve from the mounting seat.

[0040] In an optional embodiment of the present application, the fixed groove includes a first groove section and a second groove section that are interconnected, the extension direction of the first groove section is consistent with the axial direction of the thermal insulation sleeve, and the extension direction of the second groove section is perpendicular to the axial direction of the thermal insulation sleeve; wherein the opening of the first groove section is the opening of the fixed groove;

[0041] When the mounting member is installed from the opening of the first slot section into the second slot section, the mounting member fits against the slot wall of the second slot section to fix the thermal insulation sleeve on the mounting seat;

[0042] When the mounting member is moved from the second slot section to outside the opening of the first slot section, the mounting member is separated from the slot wall of the second slot section to remove the thermal insulation sleeve from the mounting seat.

[0043] In an optional implementation manner of the present application, the present invention further includes:

[0044] One-way valve;

[0045] A connection module, the connection module comprising an air inlet, an air outlet and a diverter port which are interconnected, the air inlet being connected to the output end of the target air pipeline, the air outlet being used to be connected to the first connection component, and the diverter port being connected to the one-way valve;

[0046] The connection module is disposed on the inner side of the side wall W, and the exhaust port of the one-way valve is communicated with the mounting hole.

[0047] In an optional implementation manner of the present application, the present invention further includes:

[0048] The carrier gas detection module is arranged on the first carrier gas pipeline, and the carrier gas detection module is arranged downstream of the permeation humidification module. The carrier gas detection module includes a carrier gas humidity detector, and the carrier gas humidity detector is used to detect the relative humidity of the carrier gas after passing through the permeation humidification module.

[0049] In an optional implementation of the present application, the carrier gas humidity detector includes a semiconductor humidity sensor or a capacitive humidity sensor.

[0050] In an optional embodiment of the present application, a dew point meter is further included. The probe of the dew point meter is detachably arranged on the carrier gas detection module, and the dew point meter is electrically connected to the control module. The dew point meter is used to calibrate the carrier gas humidity detector.

[0051] In an optional embodiment of the present application, a dew point meter is further included, wherein a probe of the dew point meter is detachably connected to the output end of the target gas pipeline, and the dew point meter is electrically connected to the control module;

[0052] When the temperature of the target gas output by the high-temperature and high-humidity flue gas generating device is the second target temperature, the probe of the dew point meter is separated from the output end of the target gas pipeline;

[0053] When the high-temperature and high-humidity flue gas generating device is calibrating the carrier gas humidity detector, the probe of the dew point meter is connected to the output end of the target gas pipeline, and the control module controls the second carrier gas flow controller to stop delivering the carrier gas, controls the standard gas flow controller to stop delivering the standard gas, and adjusts the heating temperature of the target gas temperature control component to the first target temperature.

[0054] In an optional embodiment of the present application, the present invention further includes: a carrier gas detection module, which is arranged on the first carrier gas pipeline and is arranged downstream of the permeation humidification module, and the carrier gas detection module includes:

[0055] A carrier gas temperature detector, the carrier gas temperature detector is used to detect the temperature of the carrier gas after passing through the permeation humidification module;

[0056] A carrier gas humidity detector is used to detect the relative humidity of the carrier gas after passing through the permeation humidification module.

[0057] In an optional implementation manner of the present application, the present invention further includes:

[0058] The standard gas temperature control component is arranged on the standard gas pipeline and downstream of the standard gas flow controller. The standard gas temperature control component is used to heat the standard gas to the first target temperature.

[0059] In an optional embodiment of the present application, the target gas pipeline further includes a target gas temperature detector disposed downstream of the target gas temperature control component, and the target gas temperature detector is used to detect the temperature of the target gas;

[0060] The control module is electrically connected to the target gas temperature detector and is used to control the target gas temperature control component according to the temperature of the target gas detected by the target gas temperature detector.

[0061] In an optional embodiment of the present application, the gas mixing tube includes a tube body, in which a gas mixing cavity is provided; the gas mixing tube also includes a first gas inlet, a second gas inlet and a gas outlet connected to the gas mixing cavity, the first gas inlet is used to connect with the output end of the first carrier gas pipeline, the second gas inlet is used to connect with the output end of the standard gas pipeline, and the gas outlet is used to connect with the input end of the target gas pipeline.

[0062] In an optional implementation manner of the present application, the gas mixing pipe further comprises a plurality of guide plates, and the plurality of guide plates are arranged at intervals in the gas mixing chamber;

[0063] Each guide plate is provided with a groove.

[0064] In an optional implementation manner of the present application, the present invention further includes:

[0065] One-way valve;

[0066] a first connecting member;

[0067] a second connecting member;

[0068] a connecting module, the connecting module comprising an air inlet, an air outlet and a diverter port which are interconnected, the air inlet being connected to the output end of the target air pipeline, the air outlet being used to be connected to the first connecting component, and the diverter port being connected to the one-way valve; and

[0069] A measured gas flow detector, wherein the input end of the measured gas flow detector is connected to the first gas source, the output end of the measured gas flow detector is connected to the second connecting component, and the measured gas flow detector is electrically connected to the control module;

[0070] When the second connecting component is connected to the gas analyzer, the control module is used to obtain the first flow rate V of the first gas flowing through the measured gas flow detector through the measured gas flow detector. X ;

[0071] When the first connecting component is connected to the gas analyzer, the control module X Control the target gas pipeline to output a second flow rate V T The target gas, where V T ≥V X .

[0072] Beneficial effects:

[0073] In this embodiment, the carrier gas is humidified by the permeation humidification module, and the target gas temperature is adjusted, such as heated, by the target gas temperature control component, so that the output end of the target gas pipeline can output the required simulated flue gas, such as high-temperature and high-humidity simulated flue gas.

[0074] In this embodiment, the carrier gas flow in the first carrier gas pipeline where the permeation humidification module is located is fixed, and the flow, humidity and concentration of the output simulated flue gas are adjusted by controlling the carrier gas flow input into the second carrier gas pipeline and the standard gas flow input into the standard gas pipeline. The control module only needs to be adjusted through the second carrier gas flow controller and the target gas flow, and fewer variables need to be adjusted, thereby making the flow, humidity and concentration of the output simulated flue gas more accurate.

[0075] In the embodiment of the present application, the water bath temperature control component is used to heat the carrier gas flowing through the osmotic humidification module to the first target temperature. On the one hand, it can improve the ability of the osmotic humidification module to humidify the carrier gas, so that the humidified carrier gas reaches a higher humidity to meet the high humidity requirement of the target gas generated by the high-temperature and high-humidity flue gas generating device. On the other hand, the first target temperature is close to the upper limit of the working temperature range of the dew point meter, which can increase the temperature of the carrier gas passing through the osmotic humidification module, so that the temperature of the humidified carrier gas is as high as possible, and when the dew point meter is needed to detect the humidity of the humidified carrier gas, the humidity can be detected normally by the dew point meter. Compared with the osmotic humidification module in the prior art, the embodiment of the present application can meet the needs of high temperature and high humidity flue gas.

[0076] In an embodiment of the present application, the carrier gas is humidified by the permeation humidification module, and the target gas is heated to the required temperature by the target gas temperature control component. The heating and humidification are performed separately in two different components. Compared with the technical solution in the prior art in which heating and humidification are performed together in the same component, the heating and humidification process in the embodiment of the present application can be controlled more accurately, so that simulated flue gas with more accurate temperature and humidity can be obtained.

[0077] In an embodiment of the present application, the humidification amount is controlled by controlling the water pressure or air pressure outside the permeation tube, so that when adjusting the humidification amount of the permeation tube, there is no need to adjust the carrier gas flow rate flowing through the permeation humidification module, thereby not affecting the flow rate and concentration of the simulated flue gas.

[0078] In an embodiment of the present application, the probe of the dew point meter is detachably installed at the output end of the target gas pipeline. Therefore, when calibrating the carrier gas humidity detector, there is no need to open the box of the smoke generating device to install the probe of the dew point meter, which makes the operation easier.

[0079] In an embodiment of the present application, an insulation cover is provided to prevent the simulated flue gas from losing heat and causing the temperature to drop at the connection between the probe of the gas analyzer and the first connecting component. The temperature of the simulated flue gas received by the main unit of the gas analyzer is not equal to the temperature of the simulated flue gas output by the flue gas generating device, thereby affecting the calibration accuracy of the gas analyzer.

[0080] In an embodiment of the present application, the flow rate of the gas required by the gas analyzer is first detected, and then the flow rate of the output target gas of the target gas component is set according to the flow rate of the gas required by the gas analyzer, so that the flow rate of the target gas output by the smoke generating device is greater than the flow rate of the gas required by the gas analyzer to meet the needs of the gas analyzer, while the flow rate of the target gas is not too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0082] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0083] Figure 1 The present invention is a schematic diagram of the structure of a smoke generating device in the prior art.

[0084] Figure 2 The present invention is a schematic diagram of the structure of an osmotic humidification device in the prior art.

[0085] Figure 3 The figure is a schematic diagram of the structure of a bypass emptying structure in the prior art.

[0086] Figure 4 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0087] Figure 5 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0088] Figure 6 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0089] Figure 7 The present invention is a schematic diagram of the circuit connection structure of a control module and an air pressure control component of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0090] Figure 8 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0091] Fig. 9 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0092] Fig.10 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0093] Fig.11 This is a schematic diagram of the circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0094] Fig.12This is a schematic diagram of the pipeline connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0095] Fig.13 This is a schematic diagram of the pipeline connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0096] Fig.14 This is a schematic diagram of the pipeline connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0097] Fig.15 This is a schematic diagram of the pipeline connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0098] Fig.16 This is a schematic diagram of the pipeline and circuit connection structure of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0099] Fig.17 This is an external structural diagram of a humidification module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0100] Fig.18 This is a diagram of the internal structure of a humidification module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0101] Fig.19 This is a cross-sectional view of a permeation tube of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0102] Fig. 20 This is an external structural diagram of another humidification module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0103] Fig.21 This is a diagram showing the internal structure of another humidification module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0104] Fig. 22 This is a structural diagram of the first temperature and humidity detection module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0105] Fig.23 This is a cross-sectional view of a first temperature and humidity detection module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0106] Fig.24 This is a cross-sectional view of a first temperature and humidity detection module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0107] Fig.25 This is an external structural diagram of a mixing pipe of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0108] Fig.26 This is a cross-sectional view of a mixing pipe of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0109] Fig. 27 This is a cross-sectional view of a connection module of a high-temperature and high-humidity flue gas generating device according to an embodiment of the present invention.

[0110] Fig.28 A cross-sectional view of a high-temperature and high-humidity flue gas generating device connected to a probe according to an embodiment of the present invention.

[0111] Fig.29 The present invention is a schematic diagram of a high-temperature and high-humidity flue gas generating device and a probe connection process of a gas analyzer according to an embodiment of the present invention.

[0112] Fig.30 The present invention is a schematic diagram of a high-temperature and high-humidity flue gas generating device and a probe connection process of a gas analyzer according to an embodiment of the present invention.

[0113] Fig.31 The present invention is a schematic diagram of a high-temperature and high-humidity flue gas generating device and a probe connection process of a gas analyzer according to an embodiment of the present invention.

[0114] Fig.32 The present invention is a schematic diagram of a high-temperature and high-humidity flue gas generating device and a probe connection process of a gas analyzer according to an embodiment of the present invention.

[0115] 10a, first carrier gas pipeline; 10b, second carrier gas pipeline; 11, carrier gas source; 124, first carrier gas flow controller; 125, second carrier gas flow controller; 13, dew point meter; 131, probe of dew point meter; 14, permeation humidification module; 141, water bath; 1411, air inlet; 1412, air outlet; 142, permeation tube; 1421, outer tube; 1422, inner tube; 1423, water flow channel; 1424, air flow channel; 1425, water flow inlet; 1426, water flow outlet; 1427 , air flow inlet; 1428, air flow outlet; 143, water pump; 144, stirring assembly; 1441, stirring motor; 1442, stirring paddle; 145, water bath temperature control component; 146, water bath temperature detector; 147, pressurized water pump; 148, air pressure control component; 1481, air pressure controller; 1483, solenoid valve; 15, carrier gas detection module; 151, detection chamber; 152, detection chamber air inlet; 153, detection chamber air outlet; 154, carrier gas temperature detector; 155, carrier gas humidity detector;

[0116] 20. Standard gas pipeline; 20a. First sub-pipeline; 20b. Second sub-pipeline; 21. Standard gas source; 22. Standard gas flow controller; 23. Standard gas temperature control component;

[0117] 30. target gas pipeline; 31. target gas temperature control component; 321. target gas temperature detector; 322. target gas humidity detector; 33. connection module; 331. cavity; 332. air inlet; 333. air outlet; 334. diversion port; 34. one-way valve; 35. first connection component;

[0118] 40. gas mixing pipe; 41. pipe body; 411. gas mixing chamber; 412. guide plate; 42. first gas inlet; 43. second gas inlet; 44. first gas outlet;

[0119] 50, insulation module; 51, first insulation module; 52, second insulation module; 53, third insulation module; 54, mounting hole; 56, insulation sleeve; 561, fixing groove; 561a, first groove section; 561b, second groove section; 57, mounting seat; 571, mounting member; 58, fourth insulation module;

[0120] 60. Control module;

[0121] 70. Measured gas flow detection module; 71. Measured gas flow detector; 72. Second connecting component;

[0122] 100. High temperature and high humidity flue gas generating device; 110. Target gas component;

[0123] 200, gas analyzer; 210, probe of gas analyzer; 211, gas extraction pipe; 212, thermal insulation material layer;

[0124] W, side wall; X, gas flow direction. DETAILED DESCRIPTION

[0125] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. All other embodiments obtained by those skilled in the art without creative work based on the embodiments in the present application belong to the scope of protection of the present application.

[0126] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0127] See also Figure 4 , Figure 5 and Fig.12 The embodiment of the present application provides a high-temperature and high-humidity flue gas generating device 100, including a first carrier gas pipeline 10a, a second carrier gas pipeline 10b, a standard gas pipeline 20, a target gas pipeline 30 and a mixing gas pipe 40.

[0128] The input end of the first carrier gas pipeline 10a is used to input carrier gas. The first carrier gas pipeline 10a is provided with a first carrier gas flow controller 124 and a permeation humidification module 14. The permeation humidification module 14 is arranged downstream of the first carrier gas flow controller 124. The first carrier gas flow controller 124 is used to control the flow of the carrier gas delivered to the permeation humidification module 14. The permeation humidification module 14 is used to humidify the carrier gas flowing through the permeation humidification module 14. The permeation humidification module 14 includes a water bath temperature control component 145. The water bath temperature control component 145 is used to heat the carrier gas flowing through the permeation humidification module 14 to a first target temperature. The first target temperature is close to the upper limit of the working temperature range of the dew point meter 13.

[0129] The input end of the standard gas pipeline 20 is used to input standard gas. A standard gas flow controller 22 is provided on the standard gas pipeline 20 . The standard gas flow controller 22 is used to control the flow of the standard gas input into the standard gas pipeline 20 .

[0130] The input end of the second carrier gas pipeline 10b is used to input carrier gas, and the output end of the second carrier gas pipeline 10b is arranged downstream of the standard gas flow controller 22. A second carrier gas flow controller 125 is provided on the second carrier gas pipeline 10b.

[0131] The output ends of the first carrier gas pipeline 10a and the standard gas pipeline 20 are respectively connected to the input ends of the mixing tube 40, and the output end of the mixing tube 40 is connected to the input end of the target gas pipeline 30. The mixing tube 40 is used to fully mix the carrier gas and the standard gas to form the target gas, and transport the target gas to the target gas pipeline 30.

[0132] The target gas pipeline 30 is provided with a target gas temperature control component 31 , and the target gas temperature control component 31 is used to heat the target gas to a second target temperature, wherein the second target temperature is greater than the first target temperature.

[0133] The high-temperature and high-humidity flue gas generating device 100 also includes a control module 60, which is electrically connected to the first carrier gas flow controller 124, the second carrier gas flow controller 125 and the standard gas flow controller 22. The control module 60 adjusts the humidity and concentration of the target gas by controlling the first carrier gas flow controller 124 to deliver a fixed flow of carrier gas to the infiltration humidification module 14, adjusting the carrier gas flow delivered by the second carrier gas flow controller 125, and adjusting the standard gas flow delivered by the standard gas flow controller 22.

[0134] In each embodiment of the present application, the high-temperature and high-humidity flue gas generating device 100 is referred to as the flue gas generating device 100 .

[0135] In each embodiment of the present application, the gas output by the smoke generating device 100 can be called simulated smoke. The simulated smoke output by the smoke generating device 100 is the target gas output by the target gas pipeline 30. It can be seen that the temperature, humidity, concentration and flow rate of the simulated smoke are equal to the target gas after being heated by the target gas temperature control component 31.

[0136] Exemplarily, the gas inputted into the input end of the first carrier gas pipeline 10a or the input end of the second carrier gas pipeline 10b may be the same or different. In the embodiment of the present application, the gas inputted into the input end of the first carrier gas pipeline 10a or the input end of the second carrier gas pipeline 10b is the same as an example. Exemplarily, the input ends of the first carrier gas pipeline 10a and the second carrier gas pipeline 10b may both input a chemically stable gas such as nitrogen or air as a carrier gas, that is, the carrier gas may be a chemically stable gas such as nitrogen or air.

[0137] For example, the carrier gas and the standard gas are different, that is, the input ends of the first carrier gas pipeline 10a or the second carrier gas pipeline 10b and the standard gas pipeline 20 are used to input different gases. For example, the input end of the standard gas pipeline 20 can input CO 2 、NO 2 The polluted gas can be used as the standard gas, that is, the standard gas can be CO 2 、NO 2 And other polluting gases.

[0138] In the embodiments of the present application, Fig.12 As shown, the input end of the first carrier gas pipeline 10a and the input end of the second carrier gas pipeline 10b are connected to the carrier gas source 11, and the input end of the standard gas pipeline 20 is connected to the standard gas source 21. It can be understood that the carrier gas source 11 is a gas with stable chemical properties such as nitrogen and air, and the standard gas source 21 is CO 2 、NO 2 And other polluting gases.

[0139] In the embodiments of the present application, Fig.12 As shown, the standard gas pipeline 20 may include a first sub-pipeline 20a and a second sub-pipeline 20b, wherein the second sub-pipeline 20b is connected to the first sub-pipeline 20a and the second carrier gas pipeline 10b, and the second sub-pipeline 20b is arranged downstream of the first sub-pipeline 20a and the second carrier gas pipeline 10b. The standard gas flow controller 22 is arranged on the first sub-pipeline 20a. It can be understood that the first sub-pipeline 20a is used to transmit the standard gas, and the second sub-pipeline 20b is used to transmit the standard gas from the first sub-pipeline 20a and the carrier gas from the second carrier gas pipeline 10b.

[0140] Exemplarily, the first carrier gas flow controller 124, the second carrier gas flow controller 125 and the standard gas flow controller 22 can be devices such as metering pumps and mass flow meters that can deliver specific flow rates according to set values ​​to make the flow rates of carrier gas and standard gas more accurate.

[0141] The humidity of the smoke generated in the actual production process is very high, and the humidity may exceed 20% (volume ratio). Therefore, the smoke generating device 100 needs to be able to generate simulated smoke with high humidity.

[0142] In practical applications, the saturated water vapor pressure Es reflects the ability of a gas to hold water vapor. The greater the saturated water vapor pressure, the greater the ability to hold water vapor.

[0143] The saturated water vapor pressure Es can be calculated by the following formula (1):

[0144] Es= 6.1078 * 10^(7.5 * T / (237.3 + T)) (1)

[0145] Where T is the temperature of the gas (°C).

[0146] According to formula (1), the higher the temperature T, the higher the saturated water vapor pressure Es, and the more water vapor that can be contained in the gas. For example, when the temperature is 25°C, the saturated water vapor pressure is 31.67hPa, and when the temperature rises to 50°C, the saturated water vapor pressure rises to 123.37hPa. Therefore, if the carrier gas passing through the first carrier gas pipeline 10a is to be able to contain more water vapor to form a high-humidity simulated flue gas, the temperature of the carrier gas flowing through the first carrier gas pipeline 10a needs to be increased by water bath heating in the permeation humidification module 14 so that the carrier gas flowing through the first carrier gas pipeline 10a can reach a higher humidity.

[0147] Therefore, a water bath temperature control component 145 is also provided in the permeation humidification module 14 to perform water bath heating on the carrier gas flowing through the humidification module 14. The water bath temperature control component 145 is used to control the water bath temperature in the water bath box 141, such as heating the water bath temperature to a first target temperature, so that the temperature of the carrier gas flowing through the permeation tube 142 rises to the first target temperature, so that the permeation tube 142 can output a carrier gas with higher humidity to meet the demand for generating high-humidity simulated flue gas. At the same time, when the water bath temperature control component 145 heats the carrier gas flowing through the permeation humidification module 14, the heating temperature cannot exceed the upper limit of the working temperature of the dew point meter 13 to ensure that the dew point meter 13 can normally detect the humidity of the humidified carrier gas.

[0148] Specifically, Fig.17 , Fig.18 and Fig.19As shown, the permeation humidification module 14 further includes a water bath 141, a permeation tube 142 and a water pump 143. The permeation tube 142 is disposed in the water bath 141. In the embodiment of the present application, the permeation tube 142 is disposed below the water surface in the water bath 141.

[0149] Exemplarily, the water bath 141 is a sealed structure.

[0150] The permeation tube 142 includes an inner tube 1422 and an outer tube 1421 sleeved on the outer side of the inner tube 1422. A water flow channel 1423 for passing water is formed between the outer tube 1421 and the inner tube 1422. An air flow channel 1424 for passing a carrier gas is formed inside the inner tube 1422. In practical applications, the permeation tube 142 can be a Nafion permeation tube.

[0151] The water pump 143 is electrically connected to the control module 60 and communicates with the water flow channel 1423. The control module 60 is used to control the water pump 143 to deliver water to the water flow channel 1423. Specifically, a water flow inlet 1425 and a water flow outlet 1426 are respectively provided at both ends of the water flow channel 1423. The water pump 143 is communicated with the water flow channel 1423 through the water flow inlet 1425 and the water flow outlet 1426. The water pump 143 can deliver water in the water bath 141 to the water flow channel 1423, or it can deliver external water to the water flow channel 1423.

[0152] The air flow channel 1424 is connected to the first carrier gas pipeline 10a, so that the carrier gas in the first carrier gas pipeline 10a flows through the air flow channel 1424. The two ends of the air flow channel 1424 are respectively provided with an air flow inlet 1427 and an air flow outlet 1428 connected to the air flow channel 1424, the air flow inlet 1427 is connected to the first carrier gas pipeline 10a and is arranged downstream of the first carrier gas flow controller 124, and the air flow outlet 1428 is connected to the output end of the first carrier gas pipeline 10a.

[0153] When the carrier gas flows through the air flow channel 1424, the moisture in the water flow channel 1423 enters the air flow channel 1423 through the inner tube 1422 of the permeation tube 142, and mixes with the carrier gas flowing through the air flow channel 1423 to form moisture. Specifically, the inner tube 1422 is made of a permeable material, and the moisture in the water flow channel 1423 can penetrate into the air flow channel 1424 through the inner tube 1422, thereby humidifying the carrier gas flowing through the air flow channel 1424. The water pump 143 forms a water flow in the water flow channel 1423, and the flowing water can make more moisture penetrate from the water flow channel 1423 to the air flow channel 1424, thereby increasing the humidification amount of the carrier gas in the air flow channel 1424.

[0154] For example, Fig. 9As shown, the osmotic humidification module 14 also includes a water bath temperature detector 146, which is disposed in the water bath box 141 and is used to detect the water bath temperature in the water bath box 141; the control module 60 is electrically connected to the water bath temperature detector 146, and is used to control the water bath temperature control component 145 to adjust the water bath temperature in the water bath box 141, such as heating, according to the deviation between the water bath temperature detected by the water bath temperature detector 146 and the first target temperature.

[0155] Exemplarily, the control module 60 obtains the water bath temperature detected by the water bath temperature detector 146, and compares the water bath temperature detected by the water bath temperature 146 with the first target temperature to determine whether there is a deviation between the two. If there is a deviation between the two, such as the water bath temperature detected by the water bath temperature 146 is less than the first target temperature, the control module 60 obtains a first temperature difference, and controls the water bath temperature control component 145 to heat the water bath in the water bath box 141 according to the first temperature difference until the water bath temperature is equal to the first target temperature.

[0156] The humidification amount of the permeation tube 142 is related to the water bath temperature. If the water bath temperature in the water bath box 141 is uneven, the humidity of the output carrier gas may fluctuate. Therefore, for example, in order to reduce the humidity fluctuation of the carrier gas output by the permeation humidification module 14, Fig.18 As shown, the osmotic humidification module 14 also includes a stirring assembly 144 disposed in the water bath 141, and the stirring assembly 144 can be used to stir the water in the water bath 141. Under the stirring action of the stirring assembly 144, the water temperature in the water bath 141 is made more uniform. In practical applications, the stirring assembly 144 includes a drive motor 1441 and a stirring paddle 1442, and the drive motor 1441 is electrically connected to the control module 60. The drive motor 1441 can drive the stirring paddle 1442 to stir the water in the water bath 141 under the control of the control module 60.

[0157] For example, Fig.25 and Fig.26 As shown, the gas mixing tube 40 includes a tube body 41, in which a gas mixing chamber 411 is provided; the gas mixing tube 40 also includes a first gas inlet 42, a second gas inlet 43 and a gas outlet 44 connected to the gas mixing chamber 411. The first gas inlet 42 is used to communicate with the output end of the first carrier gas pipeline 10a, the second gas inlet 43 is used to communicate with the output end of the standard gas pipeline 20, and the gas outlet 44 is used to communicate with the input end of the target gas pipeline 30. After the carrier gas and the target gas are mixed in the gas mixing chamber 411, they are discharged from the gas outlet 44 to the target gas pipeline 30.

[0158] The gas mixing tube 40 further includes a plurality of guide plates 412, which are arranged at intervals in the gas mixing chamber 411, and each guide plate 412 is provided with a groove. For example, the guide plates 412 are provided with a plurality of grooves in parallel along the longitudinal direction to increase the contact area between the carrier gas and the target gas, so that the carrier gas and the target gas can be fully mixed, and the carrier gas and the target gas are mixed more evenly.

[0159] The temperature of the actual flue gas generated in the actual production process is very high, usually reaching above 100°C, and even reaching 200°C. Therefore, in order to make the simulated flue gas closer to the actual flue gas and to calibrate the gas analyzer more accurately, the simulated flue gas output by the flue gas generating device 100 should also reach the corresponding temperature. In an optional embodiment of the present application, the second target temperature is the same temperature as the actual flue gas. However, in actual applications, there are errors in the detection of the actual flue gas by the detector, and there are also errors in the detection of the second target temperature by the detector. It can be understood that within the range of the error, the second target temperature is the same as the temperature of the actual flue gas. It should also be noted that the actual flue gas is the flue gas detected by the gas analyzer in the actual production process, and can also be referred to as the measured flue gas.

[0160] Therefore, in this embodiment, a target gas temperature control component 31 is provided on the target gas pipeline 30. The target gas temperature control component 31 can heat the target gas output from the mixing pipe 40 so that the heated target gas can reach a high temperature corresponding to the actual flue gas, that is, the simulated flue gas output by the target gas pipeline 30 can reach a high temperature corresponding to the actual flue gas.

[0161] In order to adjust the temperature of the target gas, Fig.10 and Fig.12 As shown, the smoke generating device 100 also includes a target gas temperature detector 321 disposed downstream of the target gas temperature control component 31, the target gas temperature detector 321 is used to detect the temperature of the target gas, the control module 60 is electrically connected to the target gas temperature detector 321, and is used to control the target gas temperature control component 31 according to the temperature of the target gas detected by the target gas temperature detector 321, so as to adjust the heating performance of the target gas temperature control component 31 through the detection value of the target gas temperature detector 321, so that the target gas output by the target gas pipeline 30 reaches the set second target temperature, that is, to make the simulated smoke reach the set second target temperature. In an optional embodiment, the second target temperature is greater than 100°C.

[0162] In other embodiments of the present application, Fig.10 and Fig.13As shown, the smoke generating device 100 further includes a target gas humidity detector 322 disposed at the output end of the target gas temperature detector 321. The target gas humidity detector 322 is used to directly detect the humidity of the target gas. The target gas humidity detector 322 is a sensor capable of detecting absolute humidity in a high temperature environment, such as a limiting current type zirconia sensor. The target gas humidity detector 322 is electrically connected to the control module 60, and the control module 60 can obtain the humidity of the target gas detected by the target gas humidity detector 322 from the target gas humidity detector 322.

[0163] Among them, the control module 60 can be understood as the control center of the smoke generating device 100, which may include one or more processors, and in other optional embodiments, it may also include one or more memories. It should be understood that the control module 60 is also electrically connected to the target gas temperature control component 31, and the control module 60 can control the target gas temperature control component 31 to adjust the temperature of the target gas, such as the control module 60 controls the target gas temperature control component 31 to heat the target gas to the second target temperature. The control module 60 also controls the first carrier gas flow controller 124 to deliver a fixed flow of carrier gas to the permeation humidification module 14, adjust the carrier gas flow delivered by the second carrier gas flow controller 125, and adjust the standard gas flow delivered by the standard gas flow controller 22, so as to adjust the humidity and concentration of the target gas, thereby adjusting the humidity and concentration of the simulated smoke output by the target gas pipeline 30.

[0164] Depend on Fig.12 From the pipeline structure shown, it can be seen that the concentration c of the output simulated smoke (i.e., the target gas concentration in the simulated smoke) can be calculated by the following formula:

[0165]

[0166] Among them, V 1a is the carrier gas flow rate delivered by the first carrier gas flow controller 124, V 1b V is the carrier gas flow rate delivered by the second carrier gas flow controller 125; 2 The standard gas flow rate delivered by the standard gas flow controller 22.

[0167] According to formula (2), the carrier gas flow rate V delivered by the second carrier gas flow controller 125 is 1b The standard gas flow rate V delivered by the standard gas flow controller 22 is negatively correlated with the concentration c of the simulated smoke. 2 is positively correlated with the concentration c of the simulated flue gas. 1a is a fixed value, so the concentration c of the simulated flue gas can be adjusted by adjusting the carrier gas flow delivered by the second carrier gas flow controller 125 and / or adjusting the standard gas flow delivered by the standard gas flow controller 22.

[0168] Ideally, the ratio of the flow rates of the gases before and after heating is equal to the ratio of the temperatures (Kelvin temperature, in K). Therefore, in this embodiment, according to the total flow rate of each gas before heating (i.e., the sum of the flow rates of the three flow controllers, V 1a +V 1b +V 2 ) and temperature T 1 , and the output simulated flue gas temperature T 2 (measured value of the target gas temperature detector 321), the output simulated flue gas flow rate V can be calculated T , specifically:

[0169]

[0170] Among them, V 1a V is the flow rate of the humidified carrier gas delivered to the gas mixing pipe 40, that is, the flow rate of the carrier gas delivered by the first carrier gas flow controller 124; 1b V is the flow rate of the unhumidified carrier gas delivered to the standard gas pipeline 20, that is, the flow rate of the carrier gas delivered by the second carrier gas flow controller 125; 2 is the flow rate of the standard gas delivered to the gas mixing pipe 40, that is, the flow rate of the standard gas delivered by the standard gas flow controller 22. Under normal circumstances, the temperatures of the carrier gas input to the first carrier gas pipeline 10a, the carrier gas input to the second carrier gas pipeline 10b, and the standard gas input to the standard gas pipeline 20 are equal, which are all ambient temperatures. Therefore, the temperature T of each gas before heating is 1 The ambient temperature sensor can be set to obtain T 1 .

[0171] According to formula (3), the carrier gas flow rate V delivered by the second carrier gas flow controller 125 is 1b and the standard gas flow rate V delivered by the standard gas flow controller 22 2 The simulated flue gas flow V T Since the carrier gas flow rate V delivered by the first carrier gas flow controller 124 in this embodiment is 1a is a fixed value, so the flow rate V of the simulated flue gas can be adjusted by adjusting the carrier gas flow rate delivered by the second carrier gas flow controller 125 and / or adjusting the standard gas flow rate delivered by the standard gas flow controller 22. T .

[0172] The absolute humidity AH" of the simulated flue gas can be calculated by the following steps:

[0173] S11. Calculate the absolute humidity (AH') of the target gas after mixing in the gas mixing pipe 40 according to the following formula (4):

[0174]

[0175] Among them, V 1a V is the flow rate of the humidified carrier gas delivered to the gas mixing pipe 40, that is, the flow rate of the carrier gas delivered by the first carrier gas flow controller 124; 1b V is the flow rate of the unhumidified carrier gas delivered to the standard gas pipeline 20, that is, the flow rate of the carrier gas delivered by the second carrier gas flow controller 125; 2 is the standard gas flow rate input into the standard gas pipeline 20 , that is, the flow rate of the standard gas delivered by the standard gas flow controller 22 ; AH is the absolute humidity of the humidified carrier gas output by the permeation humidification module 14 .

[0176] S12. The absolute humidity does not change with the change of temperature. Therefore, the absolute humidity AH" of the simulated flue gas output by the target gas pipeline 30 = the absolute humidity AH' of the target gas before being heated by the target gas temperature control component 31.

[0177] From the above calculation steps, it can be known that the flow rate V of the carrier gas delivered by the second carrier gas flow controller 125 is 1b and the flow rate V of the standard gas delivered by the standard gas flow controller 22 2 are negatively correlated with the absolute humidity AH" of the simulated flue gas. 1a is a fixed value, and thus the absolute humidity AH" of the simulated flue gas can be adjusted by adjusting the carrier gas flow delivered by the second carrier gas flow controller 125 and / or adjusting the standard gas flow delivered by the standard gas flow controller 22.

[0178] The calculation formulas in the embodiments of the present application are all calculation formulas under ideal conditions. Those skilled in the art can modify the calculation formulas in this briefing book according to actual conditions, or adopt other calculation formulas.

[0179] In this embodiment, the carrier gas is humidified by the permeation humidification module 14, and the target gas temperature is adjusted, such as heated, by the target gas temperature control component 31, so that the output end of the target gas pipeline 30 can output the required simulated flue gas, such as high-temperature and high-humidity simulated flue gas.

[0180] In this embodiment, the carrier gas flow in the first carrier gas pipeline 10a where the infiltration humidification module 14 is located is fixed, and the flow, humidity and concentration of the output simulated flue gas are adjusted by controlling the carrier gas flow input into the second carrier gas pipeline 10b and the standard gas flow input into the standard gas pipeline 20. The control module 60 only needs to be adjusted through the second carrier gas flow controller 125 and the standard gas flow controller 22, and fewer variables need to be adjusted, thereby making the flow, humidity and concentration of the output simulated flue gas more accurate.

[0181] In the embodiment of the present application, the water bath temperature control component 145 is used to heat the carrier gas flowing through the osmotic humidification module 14 to the first target temperature. On the one hand, it can improve the ability of the osmotic humidification module 14 to humidify the carrier gas, so that the humidified carrier gas reaches a higher humidity to meet the high humidity requirement of the simulated flue gas generated by the flue gas generating device 100. On the other hand, the first target temperature is close to the upper limit of the working temperature range of the dew point meter 13, which can increase the temperature of the carrier gas passing through the osmotic humidification module 14, so that the temperature of the humidified carrier gas is as high as possible, and when the dew point meter 13 is required to detect the humidity of the humidified carrier gas, the humidity can be detected normally by the dew point meter 13. Compared with the osmotic humidification module in the prior art, the embodiment of the present application can meet the requirements of high temperature and high humidity flue gas.

[0182] In the embodiment of the present application, the carrier gas is humidified by the permeation humidification module 14, and the target gas is heated to the required temperature by the target gas temperature control component 31. The heating and humidification are performed separately in two different components. Compared with the technical solution in the prior art in which heating and humidification are performed together in the same component, the heating and humidification process in the embodiment of the present application can be controlled more accurately, so that simulated flue gas with more accurate temperature and humidity can be obtained.

[0183] The humidification amount of the permeation tube 142 (i.e., the amount of water that permeates from the outside of the tube into the tube) is related to the pressure difference between the inside and outside of the permeation tube 142. The greater the pressure difference, the greater the humidification amount of the carrier gas in the permeation tube 142. The pressure difference between the inside and outside of the permeation tube 142 can be adjusted by adjusting the pressure outside the permeation tube 142, thereby adjusting the humidification amount of the carrier gas in the permeation tube 142. The humidification amount of the carrier gas in the permeation tube 142 is changed by adjusting the water pressure and adjusting the air pressure respectively. It should be noted that the principles of changing the humidification amount of the permeation tube 142 by adjusting the water pressure and adjusting the air pressure are similar, and both directly or indirectly adjust the external pressure of the permeation tube 142, thereby adjusting the pressure difference between the inside and outside of the permeation tube 142.

[0184] In some embodiments of the present application, Figure 6 , Fig.12 , Fig.19 , Fig. 20 and Fig.21 As shown, the osmotic humidification module 14 includes a water bath 141, a osmotic tube 142 and an air pressure control component 148, the water bath 141 is a sealed structure; the osmotic tube 142 is arranged in the water bath 141, and the osmotic tube 142 is connected to the first carrier gas pipeline 10a; the air pressure control component 148 is connected to the space above the water surface in the water bath 141, and the air pressure control component 148 is used to control the air pressure of the space above the water surface in the water bath 141, so that the humidity of the carrier gas humidified by the osmotic humidification module 14 can be adjusted according to the air pressure of the space above the water surface in the water bath 141 controlled by the air pressure control component 148.

[0185] Fig. 20 In the embodiment shown, the water bath 141 and Fig.17 The differences in the water bath 141 shown include: Fig. 20 The water bath 141 is also provided with an air inlet 1411 and an air outlet 1412. Fig. 20 Other parts of the water bath 141 can be referred to Fig.17 The water bath 141 shown is not described in detail here.

[0186] Fig.21 In the embodiment shown, the permeation tube 142 can refer to Fig.18 and Fig.19 The permeation tube 142 shown is not described in detail here.

[0187] Fig. 20 and Fig.21 In the embodiment of the osmotic humidification module 14 shown, a water pump 143 may also be included. Fig.17 and Fig.18 The water pump shown will not be described in detail here.

[0188] Fig. 20 and Fig.21 In the embodiment of the osmotic humidification module 14 shown, a stirring component 144 may also be included. Fig.17 and Fig.18 The water pump shown will not be described in detail here.

[0189] In the embodiments of the present application, Figure 7 , Fig. 20 and Fig.21 As shown, the air pressure control component 148 includes an air pressure controller 1481 and a solenoid valve 1483. The water bath 141 is provided with an air inlet 1411 and an air outlet 1412. The air inlet 1411 and the air outlet 1412 are connected to the space above the water surface in the water bath 141. The air inlet 1411 is connected to the air pressure controller 1481, and the air outlet 1412 is connected to the solenoid valve 1483. The solenoid valve 1483 and the air pressure controller 1481 are electrically connected to the control module 60. The control module 60 is used to control the opening and closing of the solenoid valve 1483, and to control the air pressure controller 1481 to adjust the air pressure in the space above the water surface in the water bath 141. The air pressure control component 148 of the embodiment of the present application can control the air pressure of the space above the water surface in the water bath 141, so that the control module 60 can control the solenoid valve 1483 and the air pressure controller 1481 according to actual needs to control the air pressure of the space above the water surface in the water bath 141 to meet the required pressure.

[0190] In other embodiments of the present application, please refer to Figure 8 , and combined with Fig.17 , Fig.18 and Fig.19In the osmotic humidification module 14 of the embodiment of the present application, the water pump 143 is replaced by a pressurized water pump 147, so that the osmotic humidification module 14 no longer needs to be provided with an air pressure control component 148. Among them, the pressurized water pump 147 is electrically connected to the control module 60, and the control module 60 is used to control the pressurized water pump 147 to adjust the water pressure in the water flow channel 1423 of the permeation tube 142. In the embodiment of the present application, the pressurized water pump 147 can be used to adjust the water pressure in the water flow channel 1423, so that the control module 60 can control the pressurized water pump 147 according to actual needs to control the water pressure in the water flow channel 1423 to meet the required pressure.

[0191] In the above two embodiments of adjusting the pressure of the permeation tube 142 of the present application, the humidification amount of the carrier gas in the permeation tube 142 is controlled by controlling the water pressure or air pressure flowing through the permeation tube 142. Therefore, when adjusting the humidification amount of the carrier gas in the permeation tube 142, there is no need to adjust the carrier gas flow rate flowing through the permeation humidification module 14, thereby not affecting the flow rate and concentration of the simulated flue gas.

[0192] For example, Fig.11 , Fig.12 , Fig. 22 , Fig.23 as well as Fig.24 As shown, the smoke generating device 100 further includes: a carrier gas detection module 15, the carrier gas detection module 15 is arranged on the first carrier gas pipeline 10a, and the carrier gas detection module 15 is arranged downstream of the permeation humidification module 14, and the carrier gas detection module 15 includes: a carrier gas temperature detector 154 and a carrier gas humidity detector 155. The carrier gas temperature detector 154 is used to detect the temperature of the carrier gas after passing through the permeation humidification module 14, and the carrier gas humidity detector 155 is used to detect the relative humidity of the carrier gas after passing through the permeation humidification module 14. The carrier gas temperature detector 154 and the carrier gas humidity detector 155 are both electrically connected to the control module 60, and the control module 60 can control the carrier gas temperature detector 154 and the carrier gas humidity detector 155 to detect the temperature of the carrier gas after passing through the permeation humidification module 14 and the relative humidity of the carrier gas after passing through the permeation humidification module 14.

[0193] Since the temperature of the simulated flue gas exceeds 100°C, there is no concept of relative humidity, so the absolute humidity is used to measure the water content of the simulated flue gas. The absolute humidity of the simulated flue gas output by the target gas pipeline 30 can be calculated by the detection value of the carrier gas detection module 15, the carrier gas flow value of the first carrier gas flow controller 124, the carrier gas flow value of the second carrier gas flow controller 125, and the standard gas flow value of the standard gas flow controller 22. The specific calculation steps are as follows:

[0194] S21. Calculate the saturated water vapor pressure Es of the humidified carrier gas (i.e., equivalent to the carrier gas output by the permeation humidification module 14 on the first carrier gas pipeline 10a) input to the gas mixing pipe 40 according to the following formula (1):

[0195] Es = 6.1078 * 10^(7.5 * T / (237.3 + T)) (1)

[0196] Wherein, T is the temperature (° C.) of the humidified carrier gas delivered to the gas mixing pipe 40 by the permeation humidification module 14 , ie, the temperature value detected by the carrier gas detection module 15 .

[0197] S22. According to the obtained saturated water vapor pressure Es of the humidified carrier gas input to the gas mixing pipe 40 and the relative humidity of the humidified carrier gas input to the gas mixing pipe 40 (i.e., the relative humidity RH detected by the carrier gas detection module 15), the actual water vapor pressure (E) of the humidified carrier gas input to the gas mixing pipe 40 can be calculated by substituting the following formula (5):

[0198] E = RH * Es / 100 (5)

[0199] Here, RH represents the percentage of relative humidity (eg, RH=60 represents 60% relative humidity).

[0200] S23. According to the following formula (6), the actual water vapor pressure (E) of the humidified carrier gas input into the gas mixing pipe 40 is converted into absolute humidity (AH):

[0201] AH = (E * MW) / (R * (T + 273.15)) (6)

[0202] Among them, MW is the molecular weight of water vapor (about 18.01528 g / mol), R is the universal gas constant (about 8.314 J / (mol·K)), and T is the temperature (°C) of the carrier gas input to the mixing tube 40, that is, the temperature value detected by the carrier gas detection module 15.

[0203] S24, calculate the absolute humidity (AH') of the target gas formed after mixing in the gas mixing pipe 40 according to the following formula (4):

[0204]

[0205] Among them, V 1a V is the flow rate of the humidified carrier gas delivered to the gas mixing pipe 40, that is, the flow rate of the carrier gas delivered by the first carrier gas flow controller 124; 1b V is the flow rate of the unhumidified carrier gas delivered to the standard gas pipeline 20, that is, the flow rate of the carrier gas delivered by the second carrier gas flow controller 125; 2 It is the standard gas flow rate input into the standard gas pipeline 20 , that is, the flow rate of the standard gas delivered by the standard gas flow controller 22 .

[0206] S25 . The absolute humidity does not change with the change of temperature. Therefore, the absolute humidity AH” of the simulated flue gas output by the target gas pipeline 30 = the absolute humidity AH′ of the target gas before being heated by the target gas temperature control component 31 .

[0207] The above calculation method is only an example, and other algorithms may also be used.

[0208] According to the calculated absolute humidity AH" of the simulated flue gas output by the target gas pipeline 30 and the set absolute humidity AH of the simulated flue gas, t That is, the humidification amount of the humidification module 14 can be adjusted so that the actual value of the absolute humidity of the simulated flue gas reaches within the range of the set value.

[0209] Exemplarily, the carrier gas humidity detector 155 includes a semiconductor humidity sensor or a capacitive humidity sensor.

[0210] It should be understood that in some cases, such as Figure 4 and Fig.12 As shown, the smoke generating device 100 does not include the dew point meter 13; for example, when the smoke generating device 100 does not need to use the dew point meter 13, the smoke generating device 100 does not include the dew point meter 13. In other cases, such as Figure 5 and Fig.14 As shown, the smoke generating device 100 includes a dew point meter 13 ; for example, when the smoke generating device 100 needs to use the dew point meter 13 , the smoke generating device 100 includes the dew point meter 13 .

[0211] Exemplarily, when the smoke generating device 100 needs to use a dew point meter 13 to detect the humidity of a gas such as a carrier gas in the smoke generating device 100 , or when the smoke generating device 100 needs to use a dew point meter 13 to calibrate a carrier gas humidity detector 155 in the smoke generating device 100 , the smoke generating device 100 includes a dew point meter 13 .

[0212] In one embodiment of the present application, Fig.14 As shown, the dew point meter 13 can be arranged on the first carrier gas pipeline 10a and downstream of the permeation humidification module 14, such as a probe 131 of the dew point meter 13 is arranged on the first carrier gas pipeline 10a and downstream of the permeation humidification module 14, and the exemplary dew point meter 13 is detachably connected to the downstream of the permeation humidification module 14. Specifically, as Fig. 22 , Fig.23 as well as Fig.24 As shown, the probe 131 of the dew point meter 13 is disposed on the carrier gas detection module 15 . Specifically, the probe 131 of the dew point meter 13 can be detachably connected to the carrier gas detection module 15 .

[0213] In practical applications, the accuracy of conventional humidity sensors is limited, especially when the humidity exceeds 95% RH, there is a large error. Therefore, in order to ensure that the humidity value can still be obtained accurately when the permeation humidification module 14 outputs high-humidity gas, in a preferred embodiment, Figure 5 and Fig.11 As shown, the smoke generating device 100 further includes a dew point meter 13. The dew point meter 13 is connected to the output end of the permeation humidification module 14. In addition, the carrier gas humidity detector 155 is a semiconductor humidity sensor or a capacitive humidity sensor, both of which are conventional semiconductor humidity sensors, and their detection accuracy is insufficient, and the carrier gas humidity detector 155 needs to be calibrated regularly by the dew point meter 13. The heating temperature of the water bath temperature control component 145 is set to be close to the upper limit of the working temperature range of the dew point meter 13, thereby, the humidified carrier gas can be detected by the dew point meter 13 to obtain an accurate humidity value, and the temperature can be as high as possible to output simulated smoke with higher humidity.

[0214] Specifically, Fig. 22 , Fig.23 as well as Fig.24 As shown, in order to facilitate the arrangement of the probe 131 of the dew point meter 13, the carrier gas detection module 15 includes a detection chamber 151 and a detection chamber air inlet 152 and a detection chamber air outlet 153 connected to the detection chamber 151. The detection chamber air inlet 152 is used to communicate with the output end (i.e., the air flow outlet 1428) of the permeation humidification module 14 so that the humidified carrier gas enters the detection chamber 151, and the detection chamber air outlet 153 is connected to the input end of the mixing tube 40. The probe 131 of the dew point meter 13 is detachably arranged in the detection chamber 151 to obtain the accurate humidity of the carrier gas in the detection chamber 151. When the humidity detection by the dew point meter 13 is not required, the probe 131 of the dew point meter 13 can be taken out of the detection chamber 151.

[0215] To save space, Fig. 22 , Fig.23 as well as Fig.24 As shown, the detection ends of the carrier gas humidity detector 155 and the carrier gas temperature detector 154 may also be disposed in the detection chamber 151 .

[0216] It should be noted that the carrier gas detection module 15 is disposed in the housing of the smoke generating device 100. When the probe 131 of the dew point meter 13 needs to be connected to the carrier gas detection module 15, the embodiment of the present application needs to open an operating space on the housing of the smoke generating device 100 to facilitate the connection and removal of the probe 131 of the dew point meter 13 with the carrier gas detection module 15. However, in the actual processing, opening an operating space on the housing of the smoke generating device 100 will increase the processing steps, workload and cost.

[0217] In another embodiment of the present application, Fig.15 As shown, combined with Figure 29 to Figure 32 As shown, in the embodiment of the present application, the probe 131 of the dew point meter 13 is detachably connected to the outside of the box of the smoke generating device 100, such as the probe 131 of the dew point meter 13 is detachably connected to the output end of the target gas pipeline 30. In this embodiment, because the probe 131 of the dew point meter 13 is detachably connected to the outside of the box of the smoke generating device 100, the connection and removal process of the probe 131 of the dew point meter 13 does not require an additional operation space to be opened in the box of the smoke generating device 100. Compared with the implementation method that requires an operation space to be opened in the box of the smoke generating device 100, the embodiment of the present application can save processing procedures, workload and cost. In addition, it is also convenient for operators to connect and remove the probe 131 of the dew point meter 13. When the smoke generating device 100 outputs the target gas, that is, when the heating temperature of the target gas temperature control component 31 is the second target temperature, the probe 131 of the dew point meter 13 is disconnected from the output end of the target gas pipeline 30 to avoid damage to the dew point meter 13 by high-temperature gas. When the flue gas generating device 100 is calibrating the carrier gas humidity detector 155, the control module 60 controls the second carrier gas flow controller 125 to stop delivering the carrier gas, controls the standard gas flow controller 22 to stop delivering the standard gas, and adjusts the heating temperature of the target gas temperature control component 31 to the first target temperature. Thus, the temperature, humidity and concentration of the gas detected by the probe 131 of the dew point meter 13 are the same as the humidified carrier gas output by the infiltration humidification module 14, that is, the gas detected by the dew point meter 13 and the gas detected by the carrier gas humidity detector 155 have the same properties. Therefore, the detection result of the dew point meter 13 can be used to calibrate the carrier gas humidity detector 155 arranged downstream of the infiltration humidification module 14.

[0218] The housing of the smoke generating device 100 can be referred to Fig.29 , Fig.30 , Fig.31 and Fig.32 The insulation module 50 shown in FIG.

[0219] In one case, the first target temperature is close to the upper limit of the working temperature range of the dew point meter 13, which can be understood as: the first target temperature is equal to the upper limit of the working range of the dew point meter 13, and the upper limit of the working range of the dew point meter depends on the highest measurement standard of the dew point. It is understood that the upper limit of the working range of the domestic dew point meter does not exceed 80°C, so the upper limit of the working temperature range of the dew point meter 13 is set to 80°C, and the first target temperature is set to 80°C. However, in actual applications, the carrier gas temperature detector 154 itself has a detection error. Within the detection error range of the carrier gas temperature detector 154, the sum of the actual value of the first target temperature detected by the carrier gas temperature detector 154 and the detection error value of the carrier gas temperature detector 154 is not higher than the upper limit of the working temperature range of the dew point meter 13. For example, the detection error of the carrier gas temperature detector 154 is ±0.1°C, and the first target temperature is set to 79°C. When the carrier gas temperature detector 154 detects that the temperature of the carrier gas passing through the permeation humidification module 14 is 79°C, the control module 60 determines that the temperature of the carrier gas passing through the permeation humidification module 14 reaches the first target temperature.

[0220] In another case, the first target temperature being close to the upper limit of the working temperature range of the dew point meter 13 can be understood as: the first target temperature is less than the upper limit of the working range of the dew point meter 13. For example, when the upper limit of the working temperature range of the dew point meter 13 is 80°C, the first target temperature is set between 79-80°C, such as 79.1°C, 79.2°C, 79.3°C...79.9°C.

[0221] The standard gas temperature control component 23 is disposed on the standard gas pipeline 20 and downstream of the standard gas flow controller 22. The standard gas temperature control component 23 is used to heat the carrier gas and the standard gas flowing through to a first target temperature.

[0222] It is understandable that if only the carrier gas in the first carrier gas pipeline 10a is heated, and the carrier gas and the standard gas in the standard gas pipeline 20 are not heated, the hotter gas in the first carrier gas pipeline 10a and the colder gas in the standard gas pipeline 20 will produce condensed water when mixed in the mixing pipe 40, affecting the normal operation of the equipment and causing the humidity of the simulated flue gas finally output to deviate. In addition, if there is a large temperature difference between the temperatures of the two gases to be mixed, the flow change caused by the temperature change must also be considered when calculating the concentration and humidity, resulting in an overly complicated concentration and humidity calculation method; if the temperatures of the two gases to be mixed are the same, the gas flow after mixing is the sum of the flow rates of the two gases before mixing, and the flow calculation is relatively simple, making it easier to calculate the concentration and humidity. The standard gas temperature control component 23 is arranged downstream of the standard gas flow controller 22, which can prevent the higher temperature gas output by the standard gas temperature control component 23 from affecting the operation of the standard gas flow controller 22.

[0223] In order to ensure that each component can operate at a suitable temperature to prevent heat exchange with the outside, in a preferred embodiment, Fig.12 , Fig.29 as well as Fig.30 As shown, the smoke generating device 100 also includes a heat preservation module 50. According to the operating temperature of each component, the heat preservation module 50 includes a first heat preservation module 51, a second heat preservation module 52 and a third heat preservation module 53. The infiltration humidification module 14 is arranged in the first heat preservation module 51, the gas mixing pipe 40 is arranged in the second heat preservation module 52, and the target gas temperature control component 31 is arranged in the third heat preservation module 53. Since the gas is heated multiple times in the gas flow direction X, the temperature of the gas shows an upward trend along the gas flow direction X. Therefore, multiple heat preservation modules are arranged according to the temperature of each component, and components with similar temperatures are arranged in the same heat preservation module. Specifically, the heat preservation module 50 is a box body, and the first heat preservation module 51, the second heat preservation module 52 and the third heat preservation module 53 are different areas separated from the heat preservation module 50.

[0224] To prevent condensation, the carrier gas detection module 15 is disposed in the second insulation module 52 . When the carrier gas humidity detector 155 needs to be calibrated by the dew point meter 13 , the second insulation module 52 can be opened to install the probe 131 of the dew point meter 13 into the carrier gas detection module 15 .

[0225] It should be noted that the insulation module 50 can also include a fourth insulation module 58, and the first carrier gas flow controller 124, the second carrier gas flow controller 125, the standard gas flow controller 22 and the ambient temperature sensor are all arranged in the fourth insulation module 58, so that the ambient temperature sensor detects the ambient temperature in the space where the first carrier gas flow controller 124, the second carrier gas flow controller 125 and the standard gas flow controller 22 are located.

[0226] like Fig.12 , Figures 27 to 32 As shown, the smoke generating device 100 also includes a first connecting component 35, which is arranged in the insulation module 50. The insulation module 50 has a side wall W, and the side wall W is provided with a mounting hole 54 for connecting the first connecting component 35 with the outside, and the mounting hole 54 connects the inner and outer sides of the side wall W; the outer side of the side wall W is also provided with an insulation sleeve 56 corresponding to the position of the mounting hole 54, and the insulation sleeve 56 is located on the outer side of the insulation module 50; the first connecting component 35 is used to connect with the probe 210 of the gas analyzer passing through the insulation sleeve 56 and the mounting hole 54.

[0227] The first connecting component 35 may be a quick plug, and the output end of the target gas pipeline 30 is connected to the first connecting component 35. Fig.16As shown, the first connecting component 35 can be connected to and separated from the gas analyzer 200 .

[0228] The insulation sleeve 56 is made of insulation material and has a channel through which the probe 210 of the gas analyzer 200 passes. That is, the insulation sleeve 56 can be sleeved around the probe 210 of the gas analyzer 200 .

[0229] For example, Figure 28 to Figure 32 As shown, the gas analyzer 200 includes a probe 210, and the first connecting component 35 can be connected to and separated from the probe 210 of the gas analyzer 200, that is, the connection is detachable. Exemplarily, the probe 210 of the gas analyzer 200 includes an exhaust pipe 211 and a heat-insulating material layer 212 wrapped on the outside of the exhaust pipe 211, the front end of the exhaust pipe 211 protrudes from the front end of the heat-insulating material layer 212, the front end of the exhaust pipe 211 is used to connect with the first connecting component 35 to extract gas, and the other end of the exhaust pipe 211 is used to connect with the main unit of the gas analyzer 200 to deliver gas to the main unit of the gas analyzer 200. The heat-insulating material layer 212 can reduce the heat loss when the simulated flue gas flows through the exhaust pipe 211. The outer wall of the heat-insulating material layer 212 matches the shape of the inner wall of the heat-insulating sleeve 56, for example, the outer wall of the heat-insulating material layer 212 and the inner wall of the heat-insulating sleeve 56 are both cylindrical. When the probe 210 of the gas analyzer 200 is in a connected state with the first connecting component 35, the probe 210 of the gas analyzer 200 passes through the heat preservation sleeve 56, the front end of the exhaust pipe 211 of the probe 210 of the gas analyzer 200 is connected with the first connecting component 35, and the outer wall of the heat preservation material layer 212 of the probe 210 of the gas analyzer 200 abuts against the inner wall of the heat preservation sleeve 56. The heat preservation sleeve 56 plays a heat preservation role to prevent the simulated flue gas from losing heat and causing the temperature to drop at the connection between the probe 210 of the gas analyzer 200 and the first connecting component 35, and the temperature of the simulated flue gas received by the mainframe of the gas analyzer 200 is not equal to the temperature of the simulated flue gas output by the flue gas generating device 100, thereby affecting the calibration accuracy of the gas analyzer. In addition, when the probe 210 of the gas analyzer 200 is connected to the first connecting component 35, the outer wall of the thermal insulation material layer 212 of the probe 210 of the gas analyzer 200 abuts against the inner wall of the thermal insulation sleeve 56, the thermal insulation sleeve 56 also supports the probe 210 of the gas analyzer 200 to prevent the probe 210 of the gas analyzer 200 from falling off or the front end of the exhaust pipe 211 from being deformed due to excessive force.

[0230] Exemplarily, the insulation sleeve 56 is detachably connected to the side wall W. Specifically, as Figure 28 to Figure 32As shown, a fixing groove 561 is provided on the outer wall of the insulation sleeve 56; a mounting seat 57 corresponding to the fixing groove 561 is provided on the side wall W, and the mounting hole 54 is provided on the mounting seat 57; a mounting piece 571 corresponding to the fixing groove 561 on the insulation sleeve 56 is provided on the inner wall of the mounting hole 54, and the mounting piece 571 can be inserted into the fixing groove 561 to fix the insulation sleeve 56 on the mounting seat 57, and the mounting piece 571 can be separated from the fixing groove 561 to remove the insulation sleeve 56 from the mounting seat 57.

[0231] Exemplarily, the fixing groove 561 includes a first groove section 561a and a second groove section 561b that are interconnected, wherein the opening of the first groove section 561a is the opening of the fixing groove 561, and exemplary, the first groove section 561a and the second groove section 561b are bent to each other, such as being perpendicular to each other. Exemplarily, the extension direction of the first groove section 561a is consistent with the axial direction of the insulation sleeve 56, and the extension direction of the second groove section 561b is perpendicular to the axial direction of the insulation sleeve 56.

[0232] The mounting member 571 can be installed from the opening of the first slot section 561a into the second slot section 561b, and the mounting member 571 can be moved from the second slot section 561b into the first slot section 561a, and can be moved from the opening of the first slot section 561a to the outside of the first slot section 561a.

[0233] When the mounting member 571 is installed from the opening of the first slot section 561 a into the second slot section 561 b , the mounting member 571 fits against the slot wall of the second slot section 561 b to fix the thermal insulation sleeve 56 on the mounting seat 57 .

[0234] When the mounting member 571 is moved from the second slot section 561 b to the outside of the opening of the first slot section 561 a , the mounting member 571 is separated from the slot wall of the second slot section 561 b to remove the thermal insulation sleeve 56 from the mounting seat 57 .

[0235] The installation steps of the probe 210 and the insulation cover 56 of the gas analyzer 200 are as follows:

[0236] S41: Prepare the probe 210 and the insulation cover 56 of the gas analyzer 200, such as Fig.29 shown.

[0237] S42: The heat preservation cover 56 is placed on the probe 210 of the gas analyzer 200, and the front end of the probe 210 of the gas analyzer 200 is exposed outside the heat preservation cover 56, so that the front end of the exhaust pipe 211 is inserted into the first connecting member 35 in the next step. Fig.30 shown.

[0238] S43: Move the heat preservation cover 56 and the probe 210 of the gas analyzer 200 so that the front end of the exhaust pipe 211 of the probe 210 of the gas analyzer 200 is inserted into the first connecting member 34, such as Fig.31 shown.

[0239] S44: After aligning the opening of the first groove section 561a of the fixing groove 561 with the mounting member 571 on the mounting seat 57, first push the insulation sleeve 56 along the axial direction (direction ① in the figure) so that the mounting member 571 enters the first groove section 561a and reaches the connection between the first groove section 561a and the second groove section 561b, and then rotate the insulation sleeve 56 (direction ② in the figure) so that the mounting member 571 enters the second groove section 561b. Fig.32 shown.

[0240] Thus, the mounting member 571 cooperates with the two side walls of the second groove section 561b to limit the axial movement of the insulation sleeve 56, so as to fix the insulation sleeve 56 and prevent the insulation sleeve 56 from falling off. The disassembly steps of the probe 210 and the insulation sleeve 56 of the gas analyzer 200 can be performed in reverse according to the above steps, which will not be repeated here.

[0241] Among them, the mounting seat 57 can be integrally provided with the side wall W, or can be separately provided. The embodiment of the present application takes the mounting seat 57 and the side wall W as an example of being integrally provided, that is, the mounting seat 57 is a part of the side wall W. When the mounting seat 57 is separated from the side wall W, the mounting seat 57 can be installed on the side wall of the mounting hole 54, and the mounting seat 57 is provided with an opening connected to the inside of the side wall W, and the opening of the mounting seat 57 corresponds to the first connecting component 35, so that the probe 210 of the gas analyzer 200 can pass through. Exemplarily, the mounting seat 57 has an opening corresponding to the mounting hole 54 (not shown in the figure), and the inner side wall of the opening of the mounting seat 57 is provided with a mounting piece 571 corresponding to the fixing groove 561 on the insulation sleeve 56. It should be noted that when the mounting seat 57 and the side wall W are separate bodies, the mounting seat 57 is not limited to being installed on the side wall of the mounting hole 54, but can also be installed at other positions. It is only necessary to align the opening of the mounting seat 57 with the mounting hole 54, such as directly installing the mounting seat 57 on the outer surface of the side wall W.

[0242] The mounting member 571 may be a mounting structure such as a pin, a screw, etc. The mounting member 571 may be integrally provided with the mounting seat 57 or may be separately provided.

[0243] In other embodiments, the mounting member 571 of the mounting seat 57 and the fixing groove 561 of the thermal insulation sleeve 56 may be interchanged.

[0244] In addition, when the carrier gas humidity detector 155 is calibrated by the dew point meter 13, the dew point meter probe 131 can be detachably connected to the first connecting component 35 through the mounting hole 54, thereby eliminating the need to open the box to install and remove the dew point meter probe 131, i.e., eliminating the need to open the insulation module 50.

[0245] In the embodiment of the present application, the first carrier gas pipeline 10a, the second carrier gas pipeline 10b, the standard gas pipeline 20, the gas mixing pipe 40 and the target gas pipeline 30 can be referred to as the target gas component 110. It should be understood that the target gas component 110 may also include other parts. It should also be understood that the output end of the target gas component 110 is the output end of the target gas pipeline 30. The gas output by the target gas component 110 can be referred to as the target gas, and can also be referred to as the simulated flue gas.

[0246] It should be noted that in the description of each embodiment of the present application, the target gas may be referred to as the target gas, the standard gas may be referred to as the standard gas, the carrier gas may be referred to as the carrier gas, and the simulated flue gas may be referred to as the simulated flue gas.

[0247] According to the provisions of "JJF 1523-2015 Carbon Monoxide and Carbon Dioxide Infrared Gas Analyzer Type Evaluation Outline", when calibrating the flue gas analyzer, a flow controller (i.e., a split flow structure) must be set. The structure of the flow controller is as follows: Figure 3 As shown, it includes a flow controller inlet, a flow meter and a bypass flow meter. The flow controller inlet is used to input the gas standard substance (i.e., simulated flue gas) generated by the flue gas generating device. The gas standard substance is divided into two paths in the flow controller, flowing to the flow meter and the bypass flow meter respectively. The flow meter is connected to the instrument under test (i.e., the flue gas analyzer), and the bypass flow meter is connected to the vent pipeline (the bypass flow meter and the vent pipeline connected thereto are the bypass venting structure).

[0248] When calibrating the inhalation flue gas analyzer, the flue gas analyzer inhales the required flow of simulated flue gas through its built-in air pump, and the excess simulated flue gas is discharged to the vent pipe through the bypass flowmeter; at the same time, the bypass flowmeter detects the flow rate and flow direction of the simulated flue gas passing through, and whether air backflow occurs can be determined based on the detection results of the bypass flowmeter. In addition, the actual flue gas temperature is very high. In order to improve the accuracy of the calibration of the flue gas analyzer, high-temperature simulated flue gas corresponding to the actual flue gas temperature is often used when calibrating the flue gas analyzer. However, there are few optional models of high-temperature resistant flowmeters and they are expensive. Therefore, this flow controller is not suitable for application scenarios where high-temperature simulated flue gas is used to calibrate the flue gas analyzer.

[0249] In addition, the exhaust flow rate of the flue gas analyzer is unknown. If the flow rate of the simulated flue gas is to be greater than the exhaust flow rate of the flue gas analyzer to avoid air backflow, the flow rate of the simulated flue gas needs to be set very large, which leads to material waste and air pollution. When the flow rate of the simulated flue gas is much greater than the exhaust flow rate of the flue gas analyzer, the excess simulated flue gas exceeds the exhaust capacity of the bypass exhaust structure, resulting in the inability to discharge the excess simulated flue gas in time, forming a large positive pressure in the pipeline transported to the flue gas analyzer, causing the pressure of the simulated flue gas transported to the flue gas analyzer to be too high, affecting the normal operation of the flue gas analyzer.

[0250] In order to solve the above technical problems, Fig.12 , Fig.16 , Fig. 27 and Fig.28 As shown, the smoke generating device 100 further includes a connecting module 33 and a one-way valve 34. The connecting module 33 connects the target gas component 110 and the one-way valve 34, and the connecting module 33 is used to be detachably connected to the gas analyzer 200. Exemplarily, the connecting module 33 includes an air inlet 332, an air outlet 333 and a diverter 334 that are interconnected, the air inlet 332 is connected to the output end of the target gas component 110, the air outlet 333 is used to be detachably connected to the gas analyzer 200, and the diverter 334 is connected to the one-way valve 34.

[0251] Among them, the one-way valve 34 is used to discharge the excess target gas from the diversion port 334 to the outside, and prevent the external gas (such as air) from flowing back into the diversion port 334, thereby preventing the external gas from flowing back from the diversion port 334 into the connecting module 33 and flowing to the outlet 333.

[0252] Among them, the control module 60 is electrically connected to the target gas component 110. It should be understood that the control module 60 is electrically connected to the electrical components in the target gas component 110, such as the control module 60 is electrically connected to the first carrier gas flow controller 124, the second carrier gas flow controller 125, the standard gas flow controller 22 and other electrical components, which are exemplarily described below. In the embodiment of the present application, the control module 60 can be used to control the target gas component 110 to output the target gas according to a predetermined flow rate, wherein the target gas can be referred to as a target gas.

[0253] Specifically, the control module 60 is used to obtain the first flow rate V X , the first flow V X is the maximum extraction flow rate of the gas analyzer 200; the first flow rate V is obtained in the control module 60 X After that, the control module 60 calculates the first flow rate V X The flow rate of the target gas output by the target gas component 110 is set to the second flow rate V T , where V T ≥V XWhen the gas analyzer 200 is connected to the outlet 333 of the connection module 33, the control module 60 controls the target gas component 110 according to the second flow rate V T The target gas is output to the gas inlet 332 of the connection module 33 .

[0254] Before the smoke generating device 100 of the embodiment of the present application inputs the target gas into the gas analyzer 200, the smoke generating device 100 first obtains the maximum extraction flow rate of the gas analyzer 200, that is, the first flow rate V X Then the control module 60 calculates the first flow rate V X The flow rate of the target gas output by the target gas component 110 is set to the second flow rate V T , and the second flow V T Greater than or equal to the first flow rate V X , ensure that the flow rate of the target gas output by the target gas component 110 meets the flow rate of the target gas required by the gas analyzer 200, ensure that no external gas will flow back from the diversion port 334 into the connecting module 33 and flow to the gas analyzer 200 from the gas outlet 333, ensure the accuracy of the detection results of the gas analyzer 200, avoid the flow rate of the target gas output by the target gas component 110 is too small, causing the external gas to flow back from the diversion port 334 and affect the normal operation of the gas analyzer 200, and avoid the flow rate of the target gas is too large, resulting in excess target gas cannot be discharged from the diversion port 334 in time to form a large positive pressure, resulting in the pressure of the target gas delivered to the gas analyzer 200 is too high and affects the normal operation of the gas analyzer 200.

[0255] That is, the gas flow required by the gas analyzer 200 is first obtained, and then the output target gas flow of the target gas component 110 is set according to the gas flow required by the gas analyzer 200, so that the target gas flow output by the smoke generating device 100 is not less than the maximum gas flow required by the gas analyzer 200 but not too large.

[0256] Compared with the prior art in which a bypass flowmeter is designed in the bypass emptying structure to detect whether there is external gas flowing back to the instrument under test in the bypass emptying structure, the second flow rate V of the target gas output by the target gas component 110 in the embodiment of the present application is T Maintain a maximum flow rate not less than the gas required by the gas analyzer 200, that is, the first flow rate V X There is no need to design an additional bypass flow meter at the diversion port 334, which can reduce the number of processes and save costs.

[0257] In the embodiment of the present application, the second flow rate V of the target gas output by the target gas component 110 T Maintain a first flow rate V of the gas not less than that required by the gas analyzer 200 X, and a one-way valve 34 is provided at the diversion port 334 to prevent the backflow of external gas, so there is no need to set a bypass flow meter at the diversion port 334 to detect whether backflow occurs; therefore, when the embodiment of the present application is applied to the case of high-temperature and high-humidity gas, that is, when the flue gas generating device 100 inputs the high-temperature and high-humidity target gas to the gas analyzer 200, there is no need to set a high-temperature and high-humidity bypass flow meter with few optional models and high price to detect whether backflow of external gas occurs, which is lower in cost.

[0258] In the embodiment of the present application, the connection module 33 can be understood as a three-way pipe. The connection module 33 is arranged on the inner side of the side wall W, and the exhaust port of the one-way valve 34 is connected to the mounting hole 54.

[0259] Exemplarily, the connection module 33 is disposed in the third heat-insulating module 53 , and the side wall W of the heat-insulating module 50 is the side wall of the third heat-insulating module 53 .

[0260] In other optional embodiments, the side wall W is provided with other hole structures to communicate with the exhaust port of the one-way valve 34 .

[0261] In order to save space and make the device more compact, in the present embodiment, the target gas temperature detector 321 and the target gas humidity detector 322 are arranged on the connecting module 33, and the target gas temperature detector 321 and the target gas humidity detector 322 pass through the side wall of the connecting module 33 so that their detection ends enter the interior of the connecting module 33, thereby detecting the temperature and humidity of the simulated flue gas flowing through the connecting module 33.

[0262] The control module 60 of the present application can obtain the first flow rate V of the gas extracted by the gas analyzer 200 in different ways. X Next, the control module 60 obtains the first flow rate V of the gas analyzer 200. X Several methods are illustrated with examples.

[0263] In an optional embodiment of the present application, the smoke generating device 100 further includes a measured gas flow detector 71, the input end of the measured gas flow detector 71 is connected to the first gas source 80, the output end of the measured gas flow detector 71 is used to be detachably connected to the gas analyzer 200, and the measured gas flow detector 71 is electrically connected to the control module 60. When the output end of the measured gas flow detector 71 is connected to the gas analyzer 200, the gas analyzer 200 extracts the first gas from the first gas source 80, and the control module 60 obtains the maximum flow rate of the first gas flowing through the measured gas flow detector 71. The maximum flow rate of the first gas flowing through the measured gas flow detector 71 is the maximum gas extraction flow rate of the gas analyzer 200, that is, the maximum flow rate of the first gas flowing through the measured gas flow detector 71 and the maximum gas extraction flow rate of the gas analyzer 200 are both the first flow rate V X .

[0264] Specifically, in practical applications, the output end of the measured gas flow detector 71 can be connected to the gas analyzer 200 first. The output end of the measured gas flow detector 71 can be connected to the gas analyzer 200 in a manner of connection between two connecting components, such as the output end of the measured gas flow detector 71 is connected to the second connecting component 72, and the second connecting component 72 is connected to the measured gas flow detector 71, and the second connecting component 72 is used to be detachably connected to the probe 210 of the gas analyzer 200. When the second connecting component 72 is connected to the probe 210, the second connecting component 72 is connected to the probe 210. Thus, the measured gas flow detector 71 can be connected to the probe 210 of the gas analyzer 200 through the second connecting component 72. It should be noted that the connection between the measured gas flow detector 71 and the gas analyzer 200 is not limited to this, and other methods can also be used, such as the measured gas flow detector 71 can be directly detachably connected to the probe 210 of the gas analyzer 200.

[0265] Then, the gas analyzer 200 and the smoke generating device 100 are started, that is, the gas analyzer 200 and the smoke generating device 100 are powered on, the gas analyzer 200 runs, and the first gas from the first gas source 80 is extracted, and the first gas flows through the measured gas flow detector 71. During the process of the first gas flowing through the measured gas flow detector 71, the measured gas flow detector 71 can detect the maximum flow rate of the first gas flowing through the measured gas flow detector 71, and the maximum flow rate of the first gas flowing through the measured gas flow detector 71 is equal to the maximum gas extraction flow rate of the gas analyzer 200, that is, the maximum flow rate of the first gas flowing through the measured gas flow detector 71 and the maximum gas extraction flow rate of the gas analyzer 200 are both the first flow rate V X .

[0266] Then, the control module 60 obtains the maximum flow rate of the first gas flowing through the measured gas flow detector 71, that is, the first flow rate V X In one case, the measured gas flow detector 71 detects the first flow rate V of the first gas flowing through the measured gas flow detector 71. X After that, the measured gas flow detector 71 can directly convert the first flow V X In another case, the control module 60 may send a first flow acquisition instruction to the measured gas flow detector 71, and the measured gas flow detector 71 converts the first flow V into X In another case, the measured gas flow detector 71 detects the first flow rate V of the first gas flowing through the measured gas flow detector 71. X After that, the measured gas flow detector 71 can XThe control module 60 obtains the first flow rate V from the storage device. X .

[0267] The measured gas flow detection module 70 of the smoke generating device 100 of the embodiment of the present application may include a measured gas flow detector 71 and a second connecting component 72 .

[0268] The measured gas flow detector 71 may be a flow meter.

[0269] The second connecting component 72 may be a quick plug.

[0270] Exemplarily, the first gas source 80 may be the atmosphere, that is, the input end of the measured gas flow detector 71 is directly or indirectly connected to the atmosphere. In other optional embodiments, the first gas source 80 includes a gas tank and a first gas contained in the gas tank. When the first gas source 80 is the atmosphere, the first gas is air; when the first gas source 80 is a gas tank, the first gas may be a chemically stable gas such as nitrogen.

[0271] In another optional embodiment of the present application, the smoke generating device 100 further includes an input module (not shown), the input module is electrically connected to the control module 60, and the control module 60 is further configured to obtain a manually input first flow rate V from the input module. X The user can obtain the first flow rate V from the manual, specification or nameplate of the gas analyzer 200. X It is understandable that the maximum air extraction flow value of the gas analyzer 200, that is, the first flow rate V X , so that the user can obtain the first flow rate V from the manual, specification or nameplate of the gas analyzer 200 X In one case, the input module may be a camera or a scanner, and the user may control the camera or the scanner to obtain the first flow rate V from the manual, specification sheet or nameplate of the gas analyzer 200 by video or scanning. X In another case, the input module may be a keyboard, a touch panel or a voice receiver, and the keyboard, the touch panel or the voice receiver may receive the first flow V from the manual input. X , such as the user confirming the first flow rate V from the manual, specification or nameplate of the gas analyzer 200 X , and then input the first flow V through the keyboard, touch panel or voice receiver X The input module obtains the first flow V X Then the first flow V XSimilarly, the control module 60 can also send a first flow acquisition instruction to the input module, and the input module converts the first flow V into X The first flow rate V is sent to the control module 60. X It may then also be stored in a storage device.

[0272] The smoke generating device 100 further includes a storage module (not shown), which is electrically connected to the control module 60. The storage module stores data, and the control module 60 can obtain and execute the data of the storage module. For example, the storage module stores the first flow rate V of the gas extracted by the gas analyzer 200. X For example, the input module obtains the first flow V X Then, the first flow V X Stored in the storage module, the control module 60 needs to obtain the first flow V X In the case of, the control module 60 can directly obtain the first flow V from the storage module X In the embodiment of the present application, the storage module may include one or more memories.

[0273] It should be noted that, in the embodiment of the present application, the control module 60 obtains the first flow rate V X The examples of several methods are not limited to these.

[0274] In the embodiment of the present application, the control module 60 obtains the first flow rate V of the first gas flowing through the measured gas flow detector 71. X Afterwards, the control module 60 controls the flow rate V X The flow rate of the target gas output by the target gas component 110 is set to the second flow rate V T The connection between the gas analyzer 200 and the measured gas flow detector 71 is disconnected. Specifically, the second connecting component 72 and the probe 210 of the gas analyzer 200 are separated to disconnect the connection between the gas analyzer 200 and the measured gas flow detector 71.

[0275] Then, the gas analyzer 200 is connected to the connection module 33, that is, the probe 210 of the gas analyzer 200 is connected to the gas outlet 333 of the connection module 33. Exemplarily, the gas outlet 333 of the connection module 33 can be connected to the probe 210 of the gas analyzer 200 through the first connection component 35, and the gas outlet 333 of the connection module 33 is connected to the first connection component 35, and the first connection component 35 is used to be detachably connected to the probe 210 of the gas analyzer 200. Specifically, the connection module 33 is connected to the first connection component 35, and the first connection component 35 is connected to the gas outlet 333 position. When the connection module 33 and the first connection component 35 are connected, the first connection component 35 and the gas outlet 333 of the connection module 33 are communicated. When the first connection component 35 is connected to the probe 210, the first connection component 35 and the probe 210 are communicated, so that the probe 210 and the gas outlet 333 of the connection module 33 are connected.

[0276] Then, the control module 60 controls the target gas component 110 to flow at a second flow rate V T The target gas is output to the gas inlet 332 of the connection module 33. Since the gas inlet 332, the gas outlet 333 and the diversion port 334 are interconnected, the target gas is output to the gas inlet 332 of the connection module 33. T After being output to the gas inlet 332 , the target gas is transmitted from the gas inlet 332 to the gas outlet 333 and the diversion port 334 . The target gas transmitted to the gas outlet 333 is transmitted to the gas analyzer 200 through the second connecting component 72 .

[0277] After receiving the target gas, the gas analyzer 200 may detect the target gas.

[0278] It should be noted that after the gas analyzer 200 completes the detection of the target gas, the gas analyzer 200 and the smoke generating device 100 are separated. Specifically, the first connecting component 35 and the probe 210 of the gas analyzer 200 can be separated.

[0279] The first connecting component 35 may be a quick plug. Exemplarily, the first connecting component 35 and the second connecting component 72 have the same shape.

[0280] In an optional embodiment of the present application, the first flow rate V X and the second flow V T Satisfaction: V T = kV X , where k ≥ 1.

[0281] In another optional embodiment of the present application, the first flow rate V X and the second flow V T Satisfaction: V T =V X +ΔV, where ΔV≥0.

[0282] In this embodiment, only a group of first carrier gas pipelines 10a, a second carrier gas pipeline 10b and a group of standard gas pipelines 20 are used as examples. In fact, other pipelines can also be set according to actual conditions, and the required gas is introduced into each pipeline according to actual conditions to generate multi-component simulated flue gas.

[0283] To facilitate calculation and adjustment, in each embodiment of the present application, the control module 60 is electrically connected to various components of the smoke generating device 100, such as the first carrier gas flow controller 124, the second carrier gas flow controller 125, the standard gas flow controller 22, the infiltration humidification module 14, and the target gas temperature control component 31, so that the above-mentioned calculation and adjustment process can be executed by the control module 60, and the content of each component of the simulated smoke can also be adjusted through the control module 60.

[0284] In each embodiment of the present application, the permeation humidification module 14 is arranged on the first carrier gas pipeline 10a. The first carrier gas pipeline 10a is used to pass nitrogen, air and other gases with stable chemical properties, so as to avoid the permeation humidification module 14 from contacting with pollutant gases with relatively active chemical properties, so as to ensure the stable and reliable operation of the permeation humidification module 14. Of course, the permeation humidification module 14 is arranged on the first carrier gas pipeline 10a only as the best embodiment, and it does not exclude that the permeation humidification module 14 can be arranged on the standard gas pipeline 20 or the target gas pipeline 30 in other embodiments. For example, CO 2 、NO 2 Polluted gases such as acidic, alkaline, corrosive, etc., will affect the service life of the temperature and humidity sensor. In each embodiment of the present application, the carrier gas detection module 15 is arranged on the first carrier gas pipeline 10a, and does not need to contact the mixed gas, so as to avoid direct contact with the acidic, alkaline, and corrosive components in the target gas, so as to improve the service life of the carrier gas detection module 15 and the carrier gas temperature detector 154 and the carrier gas humidity detector 155 arranged therein.

[0285] In the actual humidification process, water vapor will also occupy a certain volume, so the volume of the carrier gas will increase after humidification. In the calculation process of the above embodiments of the present application, in order to make the technical solution easier to understand, the volume change before and after the carrier gas is humidified is ignored. Those skilled in the art are capable of adjusting the above calculation process according to actual conditions to make the calculation results closer to the actual situation.

[0286] The high-temperature and high-humidity flue gas generating device 100 provided in the embodiment of the present application is introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A high temperature and high humidity flue gas generating device, characterized in that: include: A first carrier gas pipeline (10a), a second carrier gas pipeline (10b), a standard gas pipeline (20), a target gas pipeline (30) and a gas mixing pipe (40); The input end of the first carrier gas pipeline (10a) is used to input carrier gas. The first carrier gas pipeline (10a) is provided with a first carrier gas flow controller (124) and a permeation humidification module (14). The permeation humidification module (14) is arranged downstream of the first carrier gas flow controller (124). The first carrier gas flow controller (124) is used to control the flow of the carrier gas delivered to the permeation humidification module (14). The permeation humidification module (14) is used to humidify the carrier gas flowing through the permeation humidification module (14). The input end of the standard gas pipeline (20) is used to input standard gas, and a standard gas flow controller (22) is provided on the standard gas pipeline (20), and the standard gas flow controller (22) is used to control the flow of the standard gas input into the standard gas pipeline (20); The input end of the second carrier gas pipeline (10b) is used to input carrier gas, and the output end of the second carrier gas pipeline (10b) is arranged downstream of the standard gas flow controller (22); the second carrier gas pipeline (10b) is provided with a second carrier gas flow controller (125); The output ends of the first carrier gas pipeline (10a) and the standard gas pipeline (20) are respectively connected to the input end of the gas mixing pipe (40), and the output end of the gas mixing pipe (40) is connected to the input end of the target gas pipeline (30). The gas mixing pipe (40) is used to fully mix the carrier gas and the standard gas to form a target gas, and to transport the target gas to the target gas pipeline (30); The osmotic humidification module (14) comprises a water bath temperature control component (145), wherein the water bath temperature control component (145) is used to heat the carrier gas flowing through the osmotic humidification module (14) to a first target temperature, wherein the first target temperature is close to an upper limit of a working temperature range of the dew point meter (13); The target gas pipeline (30) is provided with a target gas temperature control component (31), and the target gas temperature control component (31) is used to heat the target gas to a second target temperature; wherein the second target temperature is greater than the first target temperature; It also includes a control module (60), which is electrically connected to the first carrier gas flow controller (124), the second carrier gas flow controller (125) and the standard gas flow controller (22), and the control module (60) controls the first carrier gas flow controller (124) to adjust the humidity and concentration of the target gas by delivering a fixed flow of carrier gas to the permeation humidification module (14), adjusting the carrier gas flow delivered by the second carrier gas flow controller (125) and adjusting the standard gas flow delivered by the standard gas flow controller (22).

2. The high temperature and high humidity flue gas generating device according to claim 1, characterized in that: The second target temperature is greater than 100°C.

3. The high temperature and high humidity flue gas generating device according to claim 1, characterized in that: The permeation humidification module (14) further comprises a water bath (141), a permeation tube (142) and a water pump (143), wherein the permeation tube (142) is arranged in the water bath (141); The permeation tube (142) comprises an inner tube (1422) and an outer tube (1421) sleeved on the outer side of the inner tube (1422), a water flow channel (1423) for passing water is formed between the outer tube (1421) and the inner tube (1422), and an air flow channel (1424) for passing a carrier gas is formed in the inner tube (1422); The water pump (143) and the control module (60) are electrically connected and communicated with the water flow channel (1423); the control module (60) is used to control the water pump (143) to transport water into the water flow channel (1423); the first carrier gas pipeline (10a) is communicated with the air flow channel (1424).

4. The high-temperature and high-humidity flue gas generating device according to claim 1, characterized in that: The permeation humidification module (14) further comprises a water bath (141), a permeation tube (142) and a pressurized water pump (147), wherein the permeation tube (142) is arranged in the water bath (141); The permeation tube (142) comprises an inner tube (1422) and an outer tube (1421) sleeved on the outer side of the inner tube (1422), a water flow channel (1423) for passing water is formed between the outer tube (1421) and the inner tube (1422), and an air flow channel (1424) for passing a carrier gas is formed in the inner tube (1422); The pressurized water pump (147) and the control module (60) are electrically connected and communicated with the water flow channel (1423); the control module (60) is used to control the pressurized water pump (147) to adjust the water pressure in the water flow channel (1423) of the permeation tube (142); the first carrier gas pipeline (10a) is communicated with the air flow channel (1424).

5. The high temperature and high humidity flue gas generating device according to claim 1, characterized in that: The osmotic humidification module (14) further comprises a water bath (141), a osmotic tube (142) and an air pressure control component (148); the water bath (141) is a sealed structure; The permeation tube (142) is disposed in the water bath (141), and the permeation tube (142) is connected to the first carrier gas pipeline (10a); The air pressure control component (148) is connected to the space above the water surface in the water bath (141), and the air pressure control component (148) is used to control the air pressure in the space above the water surface in the water bath (141).

6. The high-temperature and high-humidity flue gas generating device according to claim 5, characterized in that: The air pressure control component (148) includes an air pressure controller (1481) and an electromagnetic valve (1483); the water bath (141) is provided with an air inlet (1411) and an air outlet (1412); the air inlet (1411) and the air outlet (1412) are in communication with the space above the water surface in the water bath (141); the air inlet (1411) is in communication with the air pressure controller (1481); and the air outlet (1412) is in communication with the electromagnetic valve (1483); The solenoid valve (1483) and the air pressure controller (1481) are electrically connected to the control module (60), and the control module (60) is used to control the opening and closing of the solenoid valve (1483) and control the air pressure controller (1481) to adjust the air pressure in the space above the water surface in the water bath (141).

7. The high-temperature and high-humidity flue gas generating device according to any one of claims 2 to 6, characterized in that: The osmotic humidification module (14) further comprises a water bath temperature detector (146), wherein the water bath temperature detector (146) is arranged in the water bath box (141), and the water bath temperature detector (146) is used to detect the water bath temperature in the water bath box (141); The control module (60) is electrically connected to the water bath temperature detector (146) and is used to control the water bath temperature control component (145) to adjust the water bath temperature in the water bath box (141) according to the deviation between the water bath temperature detected by the water bath temperature detector (146) and the first target temperature.

8. The high-temperature and high-humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: It also includes a heat preservation module (50), wherein the heat preservation module (50) includes: A first heat preservation module (51), wherein the permeation humidification module (14) is arranged in the first heat preservation module (51); A second heat preservation module (52), wherein the gas mixing pipe (40) is arranged in the second heat preservation module (52); A third heat preservation module (53), wherein the target gas temperature control component (31) is arranged in the third heat preservation module (53).

9. The high-temperature and high-humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: Also includes: A heat preservation module (50) and a first connecting component (35), wherein the first connecting component (35) is arranged in the heat preservation module (50), and the output end of the target gas pipeline (30) is connected to the first connecting component (35); The heat preservation module (50) has a side wall W, and a mounting hole (54) is provided on the side wall W for connecting the first connecting component (35) with the outside, and the mounting hole (54) connects the inside and outside of the side wall W; The outer side of the side wall W is also provided with a heat preservation sleeve (56) corresponding to the position of the mounting hole (54); The first connecting component (35) is used to connect to a probe (210) of a gas analyzer (200) that passes through the thermal insulation sleeve (56) and the mounting hole (54).

10. The high-temperature and high-humidity flue gas generating device according to claim 9, characterized in that: The thermal insulation sleeve (56) is detachably connected to the side wall W.

11. The high temperature and high humidity flue gas generating device according to claim 10, characterized in that: The outer side wall of the thermal insulation sleeve (56) is provided with a fixing groove (561); A mounting seat (57) corresponding to the fixing groove (561) is provided on the side wall W, and the mounting hole (54) is provided on the mounting seat (57) or the mounting seat (57) has an opening corresponding to the mounting hole (54); an inner side wall of the mounting hole (54) or the opening of the mounting seat (57) is provided with a mounting piece (571) corresponding to the fixing groove (561) on the thermal insulation sleeve (56); the mounting piece (571) can be inserted into the fixing groove (561) to fix the thermal insulation sleeve (56) on the mounting seat (57), and the mounting piece (571) can be separated from the fixing groove (561) to remove the thermal insulation sleeve (56) from the mounting seat (57).

12. The high-temperature and high-humidity smoke generating device according to claim 11, characterized in that: The fixed groove (561) comprises a first groove section (561a) and a second groove section (561b) which are connected to each other, the extension direction of the first groove section (561a) is consistent with the axial direction of the thermal insulation sleeve (56), and the extension direction of the second groove section (561b) is perpendicular to the axial direction of the thermal insulation sleeve (56); wherein the opening of the first groove section (561a) is the opening of the fixed groove (561); When the mounting member (571) is installed from the opening of the first slot section (561a) into the second slot section (561b), the mounting member (571) fits against the slot wall of the second slot section (561b) to fix the thermal insulation sleeve (56) on the mounting seat (57); When the mounting member (571) moves from the second slot section (561b) to the outside of the opening of the first slot section (561a), the mounting member (571) is separated from the slot wall of the second slot section (561b) to remove the thermal insulation sleeve (56) from the mounting seat (57).

13. The high temperature and high humidity flue gas generating device according to claim 9, characterized in that: Also includes: One-way valve (34); A connection module (33), the connection module (33) comprising an air inlet (332), an air outlet (333) and a diversion port (334) which are connected to each other, the air inlet (332) being connected to the output end of the target air pipeline (30), the air outlet (333) being used to be connected to the first connection component (35), and the diversion port (334) being connected to the one-way valve (34); The connection module (33) is arranged on the inner side of the side wall W, and the exhaust port of the one-way valve (34) is connected to the mounting hole (54).

14. The high-temperature and high-humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: Also includes: A carrier gas detection module (15) is arranged on the first carrier gas pipeline (10a), and the carrier gas detection module (15) is arranged downstream of the permeation humidification module (14). The carrier gas detection module (15) comprises a carrier gas humidity detector (155), and the carrier gas humidity detector (155) is used to detect the relative humidity of the carrier gas after passing through the permeation humidification module (14).

15. The high temperature and high humidity flue gas generating device according to claim 14, characterized in that: The carrier gas humidity detector (155) includes a semiconductor humidity sensor or a capacitive humidity sensor.

16. The high temperature and high humidity smoke generating device according to claim 15, characterized in that: It also includes a dew point meter (13), the probe (131) of the dew point meter (13) is detachably arranged on the carrier gas detection module (15), and the dew point meter (13) is electrically connected to the control module (60), and the dew point meter (13) is used to calibrate the carrier gas humidity detector (155).

17. The high temperature and high humidity smoke generating device according to claim 15, characterized in that: It also includes a dew point meter (13), wherein a probe (131) of the dew point meter (13) is detachably connected to the output end of the target gas pipeline (30), and the dew point meter (13) is electrically connected to the control module (60); When the temperature of the output target gas of the high-temperature and high-humidity flue gas generating device (100) is the second target temperature, the probe (131) of the dew point meter (13) is separated from the output end of the target gas pipeline (30); When the high-temperature and high-humidity flue gas generating device (100) is calibrated with the carrier gas humidity detector (155), the probe (131) of the dew point meter (13) is connected to the output end of the target gas pipeline (30), and the control module (60) controls the second carrier gas flow controller (125) to stop delivering the carrier gas, controls the standard gas flow controller (22) to stop delivering the standard gas, and adjusts the heating temperature of the target gas temperature control component (31) to the first target temperature.

18. The high temperature and high humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: Also includes: A carrier gas detection module (15) is arranged on the first carrier gas pipeline (10a), and the carrier gas detection module (15) is arranged downstream of the permeation humidification module (14), and the carrier gas detection module (15) comprises: a carrier gas temperature detector (154), the carrier gas temperature detector (154) being used to detect the temperature of the carrier gas after passing through the permeation humidification module (14); A carrier gas humidity detector (155), wherein the carrier gas humidity detector (155) is used to detect the relative humidity of the carrier gas after passing through the permeation humidification module (14).

19. The high temperature and high humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: Also includes: A standard gas temperature control component (23) is arranged on the standard gas pipeline (20) and downstream of the standard gas flow controller (22), and the standard gas temperature control component (23) is used to heat the standard gas to the first target temperature.

20. The high temperature and high humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: The target gas pipeline (30) further comprises a target gas temperature detector (321) arranged downstream of the target gas temperature control component (31), wherein the target gas temperature detector (321) is used to detect the temperature of the target gas; The control module (60) is electrically connected to the target gas temperature detector (321) and is used to control the target gas temperature control component (31) according to the temperature of the target gas detected by the target gas temperature detector (321).

21. The high temperature and high humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: The gas mixing tube (40) comprises a tube body (41), wherein a gas mixing chamber (411) is provided in the tube body (41); the gas mixing tube (40) further comprises a first gas inlet (42), a second gas inlet (43) and a gas outlet (44) which are connected to the gas mixing chamber (411), wherein the first gas inlet (42) is used to be connected to the output end of the first carrier gas pipeline (10a), the second gas inlet (43) is used to be connected to the output end of the standard gas pipeline (20), and the gas outlet (44) is used to be connected to the input end of the target gas pipeline (30).

22. The high temperature and high humidity smoke generating device according to claim 21, characterized in that: The gas mixing pipe (40) further comprises a plurality of guide plates (412), wherein the plurality of guide plates (412) are arranged at intervals in the gas mixing chamber (411); Each of the guide plates (412) is provided with a groove.

23. The high temperature and high humidity flue gas generating device according to any one of claims 1 to 6, characterized in that: Also includes: One-way valve (34); A first connecting member (35); A second connecting member (72); a connecting module (33), the connecting module (33) comprising an air inlet (332), an air outlet (333) and a diversion port (334) which are connected to each other, the air inlet (332) being connected to the output end of the target air pipeline (30), the air outlet (333) being connected to the first connecting component (35), and the diversion port (334) being connected to the one-way valve (34); and A measured gas flow detector (71), wherein the input end of the measured gas flow detector (71) is connected to the first gas source (80), the output end of the measured gas flow detector (71) is connected to the second connecting component (72), and the measured gas flow detector (71) is electrically connected to the control module (60); When the second connecting component (72) is connected to the gas analyzer (200), the control module (60) is used to obtain, through the measured gas flow detector (71), a first flow rate V of the first gas flowing through the measured gas flow detector (71). X ; When the first connecting component (35) is connected to the gas analyzer (200), the control module (60) controls the gas flow rate V X Control the target gas pipeline (30) to output a second flow rate V T The target gas, where V T ≥V X .

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