Temperature and humidity environment simulation cabin with air flue

Abstract

The invention relates to a temperature and humidity environment simulation cabin with an air flue, which comprises a flue and a box body, a simulation cavity is arranged in the box body, and the simulation cavity is communicated with the flue; an air duct circulation assembly is arranged in the simulation cavity, and the air duct circulation assembly comprises an air pipe suspended in the simulation cavity and a circulation fan rotatably arranged at one end of the air pipe; a sampling assembly is arranged outside the box body and is communicated with the interior of the air pipe through a sampling pipe arranged on one side of the air pipe; a humidifying assembly, a refrigerating assembly and a heating assembly are further arranged outside the simulation cavity in the box body, and the humidifying assembly, the refrigerating assembly and the heating assembly are communicated with the simulation cavity through circulating pipelines; a temperature and humidity sensor is arranged in the simulation cavity, and the humidification assembly, the refrigeration assembly and the heating assembly are electrically connected with the temperature and humidity sensor and can circularly adjust the smoke humidity and the smoke temperature in the simulation cavity based on temperature and humidity signals of the temperature and humidity sensor. Therefore, a smoke exhaust environment with uniform concentration and temperature and humidity meeting calibration requirements can be simulated.

Description

Technical Field

[0001] The present application belongs to the technical field of smoke and dust environment detection, and in particular relates to a temperature and humidity environment simulation cabin with a wind smoke duct. Background Art

[0002] The smoke direct-reading meter is a device used to detect the low-concentration particulate matter content in the flue gas emitted by the coal chemical industry. The device can reflect the smoke concentration, temperature, humidity and other parameters in the emission environment in the form of readings, thereby analyzing the emission characteristics of the coal chemical flue gas. In order to meet the ultra-low emission and fine particulate matter monitoring requirements of the coal chemical industry, research on the calibration equipment and calibration methods of the smoke direct-reading meter and to meet the calibration standards for the smoke direct-reading meter are the core of ensuring the correct application and development of the smoke direct-reading meter. At present, the calibration technology for the smoke direct-reading meter is to simulate the test environment of the smoke direct-reading meter through a dust generating device combined with a wind tunnel equipment. This technology simulates the situation where the exhaust flue gas contains different concentrations of smoke particles by generating dust in a wind tunnel with a controllable flow rate, and reflects the smoke concentration in the flue gas based on multiple particulate matter concentration parameters obtained by the dust concentration probe of the smoke direct-reading meter, and compares them with the standard concentration parameters to achieve the calibration purpose.

[0003] However, the current calibration device generally simulates a section of flue gas with wind through a wind tunnel. Due to the structure of the wind tunnel and the dust generation method, the simulated smoke and dust environment is not convenient for precise adjustment of the temperature and humidity of the flue gas, and cannot meet the needs of calibrating the temperature and humidity detection functions of the smoke and dust direct-reading meter. Summary of the Invention

[0004] Based on the above-mentioned background technical needs, the present application provides a temperature and humidity environment simulation chamber with a wind flue, which is used to solve the problem that the current calibration device generally simulates a section of a wind flue through a wind tunnel. Due to the structure of the wind tunnel and the dust generation method, the simulated smoke and dust environment is inconvenient to accurately adjust the temperature and humidity of the flue gas, and cannot meet the needs of calibrating the temperature and humidity detection functions of the smoke and dust direct-reading meter.

[0005] To achieve the above objectives, the technical solution of this application is: 18. The heat dissipation controller of claim 17, wherein the heat dissipation controller is configured to control the heat dissipation in the heat dissipation controller to control the heat dissipation in the heat dissipation controller. The heat dissipation controller is configured to control the heat dissipation in the heat dissipation controller to control the heat dissipation in the heat dissipation controller. The heat dissipation controller is configured to control the heat dissipation in the heat dissipation controller to control the heat dissipation controller.

[0006] Preferably, the humidifying component includes a liquid storage tank and an evaporating cylinder, a water inlet is provided on the surface of the box body, the water inlet is connected to the liquid storage tank, the evaporating cylinder is arranged in the liquid storage tank and is connected to the humidifying pipeline, a filter element is provided at one end of the evaporating cylinder, and an evaporating fan is provided between the other end and the filter element.

[0007] Preferably, the humidifying component also includes a water shortage protection mechanism, which includes a reserve liquid tank and a water pump arranged at the bottom of the liquid storage tank, one end of the filter element is embedded in the reserve liquid tank, and the liquid inlet pipe and the liquid outlet pipe of the water pump connect the interior of the reserve liquid tank with the liquid storage tank. A first water level sensing switch is also provided in the reserve liquid tank, and the first water level sensing switch is electrically connected to the water pump. The water pump can pump water based on the water level signal of the first water level sensing switch.

[0008] Preferably, the water shortage protection mechanism also includes an alarm and a second water level sensing switch. The second water level sensing switch is arranged in the liquid storage tank, and the alarm is arranged on the surface of the tank. The alarm is electrically connected to the second water level sensing switch. The alarm can emit sound and / or light alarms based on the water level signal of the second water level sensing switch.

[0009] Preferably, the heating component includes a centrifugal fan, a drying filter and an air flow heater, the air outlet of the centrifugal fan is connected to the air inlet of the air flow heater through the drying filter, the air inlet of the centrifugal fan is connected to the simulation cavity through one end of the heating cycle pipeline, and the air outlet of the air flow heater is connected to the simulation cavity through the other end of the heating cycle pipeline.

[0010] Preferably, the heating component also includes a heat exchanger, which is arranged in the simulation cavity adjacent to one end of the air duct, and the air inlet of the heat exchanger is connected to the air outlet of the air flow heater through the heating cycle pipeline, and the air outlet of the heat exchanger is connected to the simulation cavity.

[0011] Preferably, the heat exchanger is a finned heat exchanger.

[0012] Preferably, a first check valve is provided in the smoke inlet, and the first check valve is used to allow the smoke in the smoke duct to flow unidirectionally toward the simulation chamber.

[0013] Preferably, a ventilation port is further provided on the surface of the box body, and the ventilation port is connected to the simulation cavity through a ventilation pipeline. A second check valve is provided in the ventilation pipeline, and the second check valve is used to allow the smoke in the simulation cavity to flow unidirectionally to the outside of the box.

[0014] Preferably, a ventilation fan is provided on the ventilation port located on a side of the second check valve away from the simulation chamber.

[0015] By adopting the above technical solution, compared with the existing technology, this application has at least the following beneficial effects: 1. The humidifying component, cooling component, and heating component can humidify, heat, or cool the flue gas in the simulation chamber based on the humidity and temperature feedback signals from the temperature and humidity sensor, respectively. They also cooperate with the air duct circulation component to continuously circulate the flue gas in the air duct and the flue gas outside the air duct, thereby increasing the efficiency of the gas phase humidity balance and cold or heat balance in the simulation chamber, so as to quickly simulate the flue gas environment used to calibrate the smoke direct-reading meter, ensuring calibration accuracy and efficiency. 2. The circulation fan is used to adjust the flue gas flow velocity in the air duct, and to provide a smoke flow field environment with uniform diffusion and stable flow velocity in the air duct. This can replace the dust environment simulation equipment based on the wind tunnel structure in the prior art to a certain extent, and realize the ability to calibrate the dust concentration, temperature, humidity and other indications of the smoke direct-reading meter at the same time on the same device. Compared with the prior art, this improves the convenience and efficiency of calibrating the smoke direct-reading meter, and reduces the calibration cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the temperature and humidity environment simulation cabin with air duct in the embodiment.

[0017] Figure 2 Schematic diagram of the internal structure of the box in the embodiment.

[0018] Figure 3 It is a side view of the partial structure of the box body in the embodiment.

[0019] Figure 4 This is a partial enlarged view of the humidification component in the embodiment.

[0020] In the figure: flue 10, box body 20, simulation chamber 21, flue gas inlet 211, first check valve 2111, sampling tube 212, humidification pipeline 213, refrigeration circulation pipeline 214, heating circulation pipeline 215, temperature and humidity sensor 216, ventilation pipeline 217, second check valve 2171, ventilation fan 218, air duct circulation component 22, air duct 221, circulation fan 222, sampling component 23, humidification component 24, liquid storage tank 241, evaporation tube 242, filter element 243, evaporation fan 244, reserve liquid tank 245, water pump 246, first water level sensor switch 247, alarm 248, second water level bar sensor switch 249, refrigeration component 25, heating component 26, centrifugal fan 261, drying filter 262, air flow heater 263, heat exchanger 264. DETAILED DESCRIPTION

[0021] It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will further describe the technical solution of this application in conjunction with the drawings of the embodiments of this application, and this application is not limited to the following specific implementation methods.

[0022] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of this application, it should be understood that if there are terms such as "upper", "lower", "inner", "outer", "left", "right", "front", "back", "top", "bottom", etc. indicating directions or positional relationships, they are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the structure or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0023] The following is combined with Figure 1 To the attached Figure 4 The present application is further described in detail with reference to specific embodiments.

[0024] The present application discloses a temperature and humidity environment simulation chamber with a flue, comprising a flue 10 and a housing 20, wherein the flue 10 is a smoke exhaust pipe, one end of which is connected to the wind tunnel portion of a direct-reading meter calibration system capable of simulating a uniform flue gas flow field, such as a dust environment simulation device disclosed in Chinese invention publication number CN103234573A, wherein the flue 10 is connected to a portion after the test section of the wind tunnel of the dust environment simulation device, and can lead out simulated flue gas with uniform dust dispersion; a flue duct 10 is provided in the housing 20. There is a simulation chamber 21, which is independent and sealed relative to the internal space of the box body 20, and is used to simulate the smoke emission environment under different temperature and humidity conditions as required, so as to meet the needs of calibrating the temperature and humidity detection functions of the smoke direct reading meter. The simulation chamber 21 is connected to the above-mentioned flue 10 through a flue gas inlet 211 set on the surface of the box body 20, so that the simulated flue gas in the flue 10 enters the simulation chamber 21; the simulation chamber 21 is provided with an air duct circulation component 22, which includes a suspended air duct arranged in the simulation chamber. The air duct 221 in the housing 21 and the circulating fan 222 rotatably arranged at one end of the air duct 221, wherein the air duct 221 is a hollow pipe with a certain extension length, which is arranged in the central part of the simulation chamber 21 through a bracket so that the two ends of the air duct 221 maintain a certain distance relative to the upper and lower inner walls of the simulation chamber 21, and the fan blade part of the circulating fan 222 is connected to a variable frequency motor through a rotating shaft passing through the housing 20, and the variable frequency motor drives the circulating fan 222 to rotate and turbulently in the air duct 221, so that the air duct 221 can be Circulates with the flue gas in the simulation chamber 21; a sampling assembly 23 is further provided outside the box body 20, and at least a portion of the sampling assembly 23 is connected to the interior of the air duct 221 through a sampling tube 212 provided on one side of the air duct 221. Specifically, in this embodiment, one side of the air duct 221 is connected to the box body 20 through a hollow sampling tube 212, and the sampling assembly 23 includes at least a tubular sampling gun, and a sampling probe is integrated at one end of the sampling gun for collecting gas phase parameters in the air duct 221 to calibrate the smoke direct-reading meter.

[0025] A humidifying component 24, a refrigerating component 25 and a heating component 26 are further provided in the box body 20 outside the above-mentioned simulation cavity 21, wherein the humidifying component 24 is connected to the simulation cavity 21 through a humidifying pipe 213, the refrigerating component 25 is connected to the simulation cavity 21 through a refrigeration cycle pipe 214, and the heating component 26 is connected to the simulation cavity 21 through a heating cycle pipe 215. A temperature and humidity sensor 216 is provided in the simulation cavity 21, and the above-mentioned humidifying component 24, refrigerating component 25 and heating component 26 are all electrically connected to the temperature and humidity sensor 216.

[0026] Specifically, a PLC controller and an input device for setting parameters are integrated on the surface of the housing 20. The input device is used to set the relevant parameters for simulating the temperature and humidity environment for the PLC controller. The humidifying assembly 24, cooling assembly 25, and heating assembly 26 are all connected to the PLC controller via a temperature and humidity sensor 216. After the parameters are set, the PLC controller automatically controls the humidifying assembly 24, cooling assembly 25, or heating assembly 26 according to the set parameters and program to adjust the humidity and temperature of the flue gas within the simulation chamber 21. The controller then compares the temperature and humidity of the gas phase within the simulation chamber 21, as fed back by the temperature and humidity sensor 216, with the set parameters to ensure that the temperature and humidity within the simulation chamber 21 reach the set parameter values. (The PLC controller, input device, and their application in this embodiment serve merely as a conventional preferred example of implementing the temperature and humidity environment simulation chamber disclosed herein. They are not essential technical features of the invention and are therefore not shown in detail in the drawings and will not be described in detail.)

[0027] The steps for using the above temperature and humidity environment simulation chamber are as follows: When a sufficient amount of flue gas enters the simulation chamber 21, the gas phase humidity in the simulation chamber 21 is adjusted according to the set humidity parameter value through the humidification component 24, the temperature in the simulation chamber 21 is adjusted through the heating component 26 or the refrigeration component 25, and the flue gas in the simulation chamber 21 is circulated through the air duct circulation component 22, so that the temperature and heat balance in the simulation chamber can be quickly reached.

[0028] The use of the above temperature and humidity environment simulation chamber has at least the following beneficial effects: 1. The humidifying component 24, the cooling component 25, and the heating component 26 can humidify, heat, or cool the flue gas in the simulation chamber 21 based on the humidity and temperature feedback signals from the temperature and humidity sensor 216, respectively. In conjunction with the air duct circulation component 22, the flue gas in the air duct 221 and the flue gas outside the air duct 221 are continuously circulated, thereby accelerating the efficiency of the gas phase humidity balance and the cold or heat balance in the simulation chamber 21. This not only simulates a flue for calibrating a direct-reading smoke meter, but also helps improve the calibration accuracy and efficiency of the direct-reading smoke meter. 2. The smoke flow velocity in the air duct 221 is adjusted by the circulation fan 222, and a smoke flow field environment with uniform diffusion and stable flow velocity is provided in the air duct 221. This can replace the dust environment simulation equipment based on the wind tunnel structure in the existing technology to a certain extent, and realize the simultaneous calibration of the dust concentration, temperature, humidity and other indications of the smoke direct-reading meter on the same device. Compared with the existing technology, the convenience and efficiency of the calibration of the smoke direct-reading meter are improved, and the calibration cost is reduced.

[0029] In addition, this application also provides some more specific implementation methods to improve the above-mentioned temperature and humidity environment simulation chamber.

[0030] In a preferred embodiment, the humidifying component 24 includes a liquid storage tank 241 and an evaporating cylinder 242. A water inlet is provided on the surface of the box body 20, and the water inlet is connected to the liquid storage tank 241. The operator can replenish water into the liquid storage tank 241 through the water inlet; the evaporating cylinder is arranged in the liquid storage tank 241, and the evaporating cylinder 242 connects the humidifying pipeline 213 with the interior of the liquid storage tank 241. A filter element 243 is provided at one end of the evaporating cylinder 242, and an evaporating fan 244 is provided between the other end and the filter element 243.

[0031] Specifically, the evaporation fan 244 is electrically connected to the temperature and humidity sensor 216. Based on the humidity signal from the temperature and humidity sensor 216, the evaporation fan 244 can begin to rotate, causing water in the liquid storage tank 241 to be filtered by the filter element 243 and then evaporated by the evaporation fan 244 into the simulation chamber 21. The evaporation fan 244 can increase the water vapor partial pressure, thereby increasing the humidity through steam, thereby improving humidification efficiency.

[0032] Furthermore, in order to prevent water shortage in the water tank, the above-mentioned humidification component 24 also includes a water shortage protection mechanism, which includes a reserve liquid tank 245 and a water pump 246 arranged at the bottom of the liquid storage tank 241. One end of the above-mentioned filter element 243 is embedded in the above-mentioned reserve liquid tank 245. The water pump 246 connects the interior of the reserve liquid tank 245 with the liquid storage tank 241 through the liquid inlet pipe and the liquid outlet pipe. A first water level sensing switch 247 is also provided in the reserve liquid tank 245. The first water level sensing switch 247 is electrically connected to the water pump 246. The first water level sensing switch 247 is used to control the water pump 246 to pump water based on the water level information in the reserve liquid tank 245. When the water level in the reserve liquid tank 245 is lower than the sensing end of the first water level sensing switch 247, the first water level sensing switch 247 controls the water pump 246 to start, so that the water in the liquid storage tank 241 is pumped into the reserve liquid tank 245 for evaporation by the evaporation fan 244; the reserve liquid tank 245 is used to concentrate water resources, which saves water and helps improve evaporation efficiency.

[0033] Furthermore, the above-mentioned water shortage protection mechanism also includes an alarm 248 and a second water level sensing switch 249. The second water level sensing switch 249 is arranged in the liquid storage tank 241, and the above-mentioned alarm 248 is arranged on the surface of the box body 20. The alarm 248 is electrically connected to the second water level sensing switch 249. When the water level in the liquid storage tank 241 is lower than the sensing end of the second water level sensing switch 249, the alarm 248 can make sound and / or light alarms based on the water level signal emitted by the second water level sensing switch 249 to prompt the operator to replenish water in the liquid storage tank 241 in time.

[0034] In a preferred embodiment, the above-mentioned heating component 26 includes a centrifugal fan 261, a drying filter 262 and an air flow heater 263, wherein the air outlet of the centrifugal fan 261 is connected to the air inlet of the air flow heater 263 through the drying filter 262, the air inlet of the centrifugal fan 261 is connected to the simulation cavity 21 through one end of the heating circulation pipeline 215 arranged in the box body 20, and the air outlet of the air flow heater 263 is connected to the simulation cavity 21 through the other end of the heating circulation pipeline 215.

[0035] When the above-mentioned heating component 26 is used to heat the flue gas in the simulation chamber 21, the centrifugal fan 261 is started to make the flue gas in the simulation chamber 21 circulate in the heating circulation pipeline 215. The flue gas dried by the drying filter 262 is heated by the air flow heater 263 and passed into the simulation chamber 21. The heated air flow circulates in the simulation chamber 21 under the action of the circulation fan 222, so that the flue gas in the simulation chamber 21 quickly reaches a thermal equilibrium effect, so that the sampling component 23 can output stable and accurate flue gas temperature parameters.

[0036] Furthermore, in order to reduce the power consumption of heating the flue gas and improve the thermal balance efficiency in the simulation chamber 21, the above-mentioned heating component 26 also includes a heat exchanger 264. The heat exchanger 264 is arranged in the simulation chamber 21 at one end adjacent to the air duct 221, and the air inlet of the heat exchanger 264 is connected to the air outlet of the air flow heater 263 through the above-mentioned heating circulation pipeline 215, and the air outlet of the heat exchanger 264 is connected to the simulation chamber 21.

[0037] Specifically, the heat exchanger 264 is composed of a number of interconnected curved copper tubes, and the several curved copper tubes are laid flat at one end of the simulation cavity 21 adjacent to the air duct 221. When the flue gas continues to enter the simulation cavity 21 through the flue 10, the part of the flue gas that first enters the simulation cavity 21 is heated by the air flow heater 263 and then enters the simulation cavity 21 through the heat exchanger 264. In the process, the heat exchanger 264 can reduce the flue gas flow rate, and the temperature of the flue gas can increase the surface temperature of the copper tube of the heat exchanger 264, thereby reducing the heat loss of the flue gas; the part of the flue gas that enters the simulation cavity 21 later is continuously circulated from one end of the air duct 221 to the other end under the disturbance action of the recirculation fan 222. The flue gas in the simulation cavity 21 is preheated by the copper tube of the heat exchanger 264 during the process of being sucked into the air duct 221 by the circulation fan 222, which can improve the utilization rate of the flue gas heat and prevent a large amount of heat loss during the ventilation process, thereby reducing the power consumption of the air heater.

[0038] Furthermore, in order to increase the contact area between the heat exchanger 264 and the flue gas, the heat exchanger 264 is a finned heat exchanger 264 , which can improve the heat exchange efficiency between high-temperature flue gas and low-temperature flue gas, and improve the waste heat utilization efficiency of the heat exchanger 264 .

[0039] Furthermore, the above-mentioned refrigeration component 25 adopts the vapor compression refrigeration principle, compresses the refrigerant into a high-temperature and high-pressure liquid through a compressor, and then cools the refrigerant into a high-pressure and normal-temperature liquid after being cooled through a condenser, and then throttles the refrigerant through a throttling device to guide the refrigerant through the evaporator. At the same time, the flue gas is circulated through the evaporator through the refrigeration circulation pipeline 214 and enters the simulation cavity 21. When the refrigerant passes through the evaporator, it takes away the temperature of the flue gas, thereby achieving a cooling effect on the simulation cavity 21.

[0040] Furthermore, in order to improve the above-mentioned flue gas inlet 211, a first check valve 2111 is provided. When the flue gas in the simulation chamber 21 enters a circulating flow state, the first check valve 2111 can allow the flue gas in the flue 10 to enter the simulation chamber 21 in a one-way direction, preventing the flue gas in the simulation chamber 21 from flowing back into the flue 10, thereby ensuring the humidification efficiency and temperature control effect in the simulation chamber 21.

[0041] Furthermore, a ventilation port is provided on the surface of the box body 20, and the ventilation port is connected to the simulation chamber 21 through a ventilation pipe 217 provided between the box body 20 and the simulation chamber 21. A second check valve 2171 is provided in the ventilation pipe 217. In one embodiment, the second check valve 2171 is an electric valve. After the second check valve 2171 is opened, the smoke in the simulation chamber 21 can flow unidirectionally to the outside of the box body 20, so as to ventilate the simulation chamber 21. By simulating smoke exhaust environments with different temperatures and humidities multiple times, the parameters obtained by the sampling component 23 can be compared to achieve a more accurate calibration purpose; in another embodiment, the above-mentioned second check valve 2171 adopts a negative pressure check valve, and a ventilation fan 218 is provided in the ventilation port on the side of the second check valve 2171 away from the simulation chamber 21. After starting the ventilation fan 218, negative pressure can be generated on the side of the second check valve 2171 away from the simulation chamber 21, so as to ventilate the simulation chamber 21.

[0042] Combined with the multiple structures and features in the above embodiments, the above-mentioned temperature and humidity environment simulation chamber can cooperate with the wind tunnel structure of the dust environment simulation equipment in the prior art to simulate a smoke exhaust environment with uniform concentration, temperature and humidity that can meet the calibration requirements, so as to improve the calibration standards of the smoke direct-reading meter and reduce the calibration error caused by insufficient or distorted environmental simulation conditions.

[0043] Obviously, the above embodiments of the present application are merely examples for the purpose of clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those skilled in the art, other variations or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A temperature and humidity environment simulation cabin with a wind and flue, characterized in that: It includes a flue and a box body, a simulation cavity is provided in the box body, and the simulation cavity is connected with the flue through a flue gas inlet provided on the surface of the box body; an air duct circulation component is provided in the simulation cavity, and the air duct circulation component includes an air duct suspended in the simulation cavity and a circulation fan rotatably provided at one end of the air duct; a sampling component is provided outside the box body, and the sampling component is connected with the inside of the air duct through a sampling tube provided on one side of the air duct; a humidifying component, a refrigeration component and a heating component are also provided in the box body outside the simulation cavity, the humidifying component is connected with the simulation cavity through a humidifying pipeline, the refrigeration component is connected with the simulation cavity through a refrigeration circulation pipeline, and the heating component is connected with the simulation cavity through a heating circulation pipeline; a temperature and humidity sensor is provided in the simulation cavity, and the humidifying component, the refrigeration component and the heating component are all electrically connected to the temperature and humidity sensor.

2. The temperature and humidity environment simulation cabin with a flue gas duct according to claim 1, characterized in that: The humidifying component includes a liquid storage tank and an evaporating cylinder. A water inlet is provided on the surface of the tank body, and the water inlet is connected to the liquid storage tank. The evaporating cylinder is arranged in the liquid storage tank and is connected to the humidifying pipeline. A filter element is provided at one end of the evaporating cylinder, and an evaporating fan is provided between the other end and the filter element.

3. The temperature and humidity environment simulation cabin with a flue gas duct according to claim 2, characterized in that: The humidifying assembly also includes a water shortage protection mechanism, which includes a reserve liquid tank and a water pump arranged at the bottom of the liquid storage tank. One end of the filter element is embedded in the reserve liquid tank. The liquid inlet pipe and the liquid outlet pipe of the water pump connect the interior of the reserve liquid tank with the liquid storage tank. A first water level sensing switch is also provided in the reserve liquid tank. The first water level sensing switch is electrically connected to the water pump. The water pump can pump water based on the water level signal of the first water level sensing switch.

4. The temperature and humidity environment simulation cabin with a wind flue according to claim 3, characterized in that: The water shortage protection mechanism also includes an alarm and a second water level sensing switch. The second water level sensing switch is arranged in the liquid storage tank. The alarm is arranged on the surface of the tank body. The alarm is electrically connected to the second water level sensing switch. The alarm can emit sound and / or light warnings based on the water level signal of the second water level sensing switch.

5. The temperature and humidity environment simulation cabin with a wind flue according to claim 1, characterized in that: The heating component includes a centrifugal fan, a drying filter and an air flow heater. The air outlet of the centrifugal fan is connected to the air inlet of the air flow heater through the drying filter. The air inlet of the centrifugal fan is connected to the simulation cavity through one end of the heating circulation pipeline. The air outlet of the air flow heater is connected to the simulation cavity through the other end of the heating circulation pipeline.

6. The temperature and humidity environment simulation cabin with a wind flue according to claim 5, characterized in that: The heating component also includes a heat exchanger, which is arranged in the simulation cavity adjacent to one end of the air duct, and the air inlet of the heat exchanger is connected to the air outlet of the air flow heater through the heating cycle pipeline, and the air outlet of the heat exchanger is connected to the simulation cavity.

7. The temperature and humidity environment simulation cabin with a wind flue according to claim 6, characterized in that: The heat exchanger is a fin-type heat exchanger.

8. The temperature and humidity environment simulation cabin with a wind duct according to claim 1, characterized in that: A first check valve is provided in the smoke inlet, and the first check valve is used to allow the smoke in the smoke duct to flow toward the simulation chamber in a one-way manner.

9. The temperature and humidity environment simulation cabin with a wind duct according to claim 1, characterized in that: The surface of the box body is also provided with a ventilation port, which is connected to the simulation cavity through a ventilation pipeline. A second check valve is provided in the ventilation pipeline, and the second check valve is used to allow the smoke in the simulation cavity to flow unidirectionally to the outside of the box.

10. The temperature and humidity environment simulation cabin with a wind flue according to claim 9, characterized in that: The ventilation port is located on a side of the second check valve away from the simulation chamber and is provided with a ventilation fan.

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