A variable combustion scale flame spectroscopy test platform

Abstract

The present application relates to the technical field of flame spectrum test, more particularly, to a variable combustion scale flame spectrum test platform.The present application discloses a variable combustion scale flame spectrum test platform, comprising a combustion shell, a combustion assembly, a combustion control assembly, a spectrum acquisition assembly, a smoke exhaust assembly and an upper computer.The present application realizes flexible change of combustion scale by constructing a closed and open combustion environment cavity, adjusting the flow of fuel and oxidant, adjusting the pressure and temperature of the combustion environment cavity, can simulate various actual fire scenes, adapt to different experimental requirements, support multiple combustion types, not only support liquid fuel combustion, but also expand gas and liquid fuel combustion.The present application solves the problems of single fuel type and inability to provide variable combustion conditions of the existing flame spectrum test platform.

Description

Technical Field

[0001] The present invention relates to the technical field of flame spectrum testing, and more particularly to a flame spectrum testing platform with variable combustion scale. Background Art

[0002] The spectral characteristics of flames vary significantly under different combustion conditions (such as temperature, fuel type, and oxidant concentration). Furthermore, they exhibit distinct spectral characteristics during different combustion stages (e.g., initial ignition, steady-state development, and decay). Studying the spectral characteristics of flames can reveal information about their physical and chemical properties, providing a more accurate basis for fire detection and possessing significant practical significance.

[0003] The Chinese invention patent with patent number CN117889450A discloses a liquid chemical mixed combustion device, which includes a combustion platform with a combustion chamber, a feed assembly, an atomization assembly, a conveying assembly and a detection assembly arranged on the combustion platform. The combustion platform is also provided with a condensation chamber, the feed assembly is used to convey liquid fuel to the atomization assembly for atomization, the condensation chamber is used to mix and condense the atomized gas, the conveying assembly is used to convey the condensed liquid mixed fuel to the combustion chamber, and the detection assembly is used to monitor and analyze the burning flame. This patent simulates the state of combustion of mixed liquid fuels by re-liquefying the liquid fuel after atomization, so that the atomized liquid fuel is evenly mixed, and then the condensed mixed liquid is conveyed to the combustion platform for combustion, thereby improving the uniformity of mixing of multiple liquid fuels and improving the experimental effect of liquid combustion experiments.

[0004] This patent reflects the common problems existing in some existing flame spectrum testing platforms:

[0005] 1. This patent studies the combustion of liquid chemicals (i.e., liquid fuels). In other words, some existing flame spectrum test platforms only use a single fuel type.

[0006] 2. The combustion platform of this patent is open-air, so it is difficult to flexibly adjust the combustion conditions, and thus it is impossible to simulate fire scenes of different scales and types.

[0007] Therefore, a flame spectrum testing platform that can flexibly adjust the combustion scale and support multiple fuel types is needed to meet the needs of fire detection technology for comprehensive research on flame spectral characteristics. Summary of the Invention

[0008] In view of this, it is necessary to provide a flame spectrum test platform with variable combustion scale to address the problem that the existing flame spectrum test platform has a single fuel type and cannot provide variable combustion conditions.

[0009] The present invention is achieved by adopting the following technical solutions:

[0010] The invention discloses a flame spectrum test platform with variable combustion scale, comprising: a combustion shell, a combustion component, a combustion control component, a spectrum acquisition component, a smoke exhaust component and a host computer.

[0011] A combustion environment cavity is formed inside the combustion shell; the combustion shell is detachably provided with a closed top cover, and the closed top cover is also connected to a smoke exhaust pipe.

[0012] The combustion assembly includes a fuel supply system, an oxidant supply system, a combustion mount, and an igniter. The fuel supply system and oxidant supply system are located outside the combustion environment chamber. The fuel supply system includes a liquid fuel tank and a gas fuel tank. The oxidant supply system includes an oxidant tank. The combustion mount is located within the combustion environment chamber. The combustion mount is provided with a transparent safety cylinder, within which a combustion device is detachably mounted. When the combustion device is installed within the safety cylinder, it communicates with the fuel supply system and the oxidant supply system via the combustion mount. The combustion device is any of an oil pool burner, a spray burner, and a gas burner. The igniter is movably disposed within the combustion environment chamber and is used to ignite the combustion device.

[0013] The combustion control assembly includes a flow controller, a pressure regulating system, and a temperature regulating system. The flow controller is used to control the flow of liquid fuel, gaseous fuel, and combustion aid; the pressure regulating system is connected to the combustion environment chamber to adjust the pressure in the combustion environment chamber; and the temperature regulating system is connected to the combustion environment chamber to adjust the temperature in the combustion environment chamber.

[0014] The spectrum collection component includes: a spectrometer. The spectrometer is used to collect all-round spectra when the combustion device is burning.

[0015] The smoke exhaust assembly includes: an exhaust fan, a smoke exhaust control valve, and a filter. The smoke exhaust control valve is installed on the smoke exhaust pipe to control the on / off state of the smoke exhaust pipe. The filter and exhaust fan are installed at intervals in the smoke exhaust pipe to filter and exhaust the smoke generated by the combustion device.

[0016] The host computer is used to control the combustion control component, spectrum acquisition component, and smoke exhaust component to perform flame spectrum testing with variable combustion scales.

[0017] The flame spectrum testing platform with variable combustion scale implements the method or process according to the embodiment of the present disclosure.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present application realizes flexible change of combustion scale by constructing a closed and open combustion environment cavity, and adjusting the flow of fuel and oxidant, the pressure and temperature of the combustion environment cavity, can simulate various actual fire scenes and adapt to different experimental requirements.

[0020] 2. The present application supports various combustion types, not only supports liquid fuel combustion, but also expands gas and liquid fuel combustion.

[0021] 3. The present application also provides a specially designed combustion mounting seat and combustion device, which can ensure the normal work of different combustion types. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of these drawings.

[0023] Figure 1 The structural diagram of the variable combustion scale flame spectrum test platform provided in embodiment 1 of the present application is shown in the figure.

[0024] Figure 2 For Figure 1 The top view of the middle annular guide rail and the vertical guide rail.

[0025] Figure 3 For Figure 1 The state 1 when the combustion mounting seat installs the oil pool fire burner.

[0026] Figure 4 For Figure 1 The state 2 when the combustion mounting seat installs the oil pool fire burner.

[0027] Figure 5 For Figure 1 The state diagram when the combustion mounting seat installs the spray fire burner.

[0028] Figure 6 For Figure 5 The sectional view.

[0029] Figure 7 For Figure 1 The state diagram when the combustion mounting seat installs the gas fire burner.

[0030] Figure 8 For Figure 7 The sectional view.

[0031] In the drawings, the components represented by each number are listed as follows:

[0032] 100. Combustion shell, 101. Combustion mounting base, 102. Safety cylinder, 103. Liquid fuel tank, 104. Oxygen-supporting agent tank, 105. Gas fuel tank, 106. Supply pipe 1, 107. Supply pipe 3, 108. Supply pipe 2, 109. Igniter, 110. Longitudinal expansion joint, 111. Horizontal expansion joint, 1011. Liquid fuel pipeline, 1012. Oxygen-supporting agent pipeline, 1013. Gas fuel pipeline, 1014. Elbow pipe,

[0033] 201. Temperature control system, 202. Pressure control system, 203. Liquid fuel flow control valve, 204. Combustion aid flow control valve, 205. Gas fuel flow control valve;

[0034] 31. Spectrometer body, 32. Position adjustment assembly, 33. Fiber optic probe, 321. Annular guide rail, 322. Electric slider, 323. Axial telescopic member, 324. Radial telescopic member;

[0035] 4. Host computer;

[0036] 500, exhaust pipe, 501, exhaust control valve;

[0037] 610, oil tank, 611, isolation cylinder, 612, moving parts;

[0038] 620, burner 1, 621, combustion-supporting agent inlet pipe, 622, gas flow channel, 623, jet guide nozzle, 624, liquid fuel inlet pipe, 625, pipe connector, 626, liquid flow channel, 627, atomizer;

[0039] 630. Burner 2, 631. Inlet pipe 1, 632. Inlet pipe 2, 633. Mixing channel, 634. Burner nozzle. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. With respect to the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] Example 1

[0044] See Figure 1 , which shows a structural diagram of a flame spectrum test platform with a variable combustion scale provided by this embodiment 1. The difference between the embodiment 1 and the existing patent is that:

[0045] On the one hand, a combustion environment cavity that can be closed or opened is constructed, and on the other hand, a combustion component that adapts to different combustion conditions is designed.

[0046] like Figure 1 As shown, the flame spectrum test platform with variable combustion scale includes: a combustion shell 100, a combustion component, a combustion control component, a spectrum acquisition component, a smoke exhaust component, and a host computer 4.

[0047] 1. First, let's look at the combustion housing 100. It can be a box-shaped design and is preferably made of hard materials to provide a certain degree of durability. A combustion environment cavity is formed inside the combustion housing 100 to accommodate some components.

[0048] As mentioned above, to achieve adjustable combustion scale, the combustion environment chamber must be enclosed. However, to facilitate subsequent replacement of the combustion device, the combustion environment chamber must also be openable. Therefore, the combustion housing 100 is equipped with a removable closed top cover: the top of the combustion housing 100 is provided with an opening, and the closed top cover covers the top of the combustion housing 100, allowing for flexible removal. Furthermore, a sealing ring is provided inside the closed top cover, so that when the closed top cover covers the top opening of the combustion housing 100, the two are sealed.

[0049] In addition, the closed top cover is also connected to a smoke exhaust pipe 500, which is used to install a smoke exhaust component. Figure 2The smoke exhaust component includes: an exhaust fan, a smoke exhaust control valve 501, and a filter. The smoke exhaust control valve 501 is installed on the smoke exhaust pipe 500 and is used to control the on and off of the smoke exhaust pipe 500. In this way, when the closed top cover covers the top of the combustion shell 100, the combustion environment cavity can be closed by closing the smoke exhaust control valve 501. After the flame spectrum test is completed, the smoke exhaust control valve 501 is opened to open the smoke exhaust pipe 500. The filter and the exhaust fan are arranged at intervals in the smoke exhaust pipe 500 to filter and discharge the smoke generated by the combustion device. Among them, the filter can use a conventional activated carbon adsorber to adsorb the smoke generated by combustion; the exhaust fan can use a conventional commercially available fan to form an exhaust airflow and suck the smoke into the smoke exhaust pipe 500.

[0050] 2. Next, let’s look at the combustion assembly, which includes: a fuel supply system, an oxidant supply system, a combustion mount 101 , and an igniter 109 .

[0051] Among them, the fuel supply system and the combustion-supporting agent supply system are located outside the combustion environment cavity; the fuel supply system includes: a liquid fuel tank 103, a gas fuel tank 105; the combustion-supporting agent supply system includes: an combustion-supporting agent tank 104. It should be noted that the fuel supply system and the combustion-supporting agent supply system should use negative pressure tanks, which are convenient for direct gas discharge after opening. Among them, the liquid fuel tank 103 can be selected from gasoline tanks, diesel tanks, kerosene tanks, or tanks filled with other liquid fuels. The gas fuel tank 105 can be selected from natural gas tanks, artificial gas tanks, liquefied petroleum gas tanks, biogas tanks, coal-to-gas tanks, or tanks filled with other fuels. The combustion-supporting agent tank 104 can be selected from oxygen tanks and air tanks.

[0052] The combustion mounting seat 101 is located in the combustion environment cavity. Generally, the combustion mounting seat 101 is fixedly mounted at the center of the inner bottom of the combustion shell 100.

[0053] A transparent safety tube 102 is provided on the combustion mounting seat 101. The safety tube 102 needs to be made of transparent, high temperature resistant and corrosion resistant materials. It is recommended to be processed into a cylindrical shape, with its bottom end connected to the combustion mounting seat 101 and a port on the top for replacing the combustion device.

[0054] A combustion device is detachably mounted in the safety cylinder 102 ; when the combustion device is mounted in the safety cylinder 102 , it is connected to the fuel supply system and the combustion-supporting agent supply system through the combustion mounting seat 101 .

[0055] It's important to note that the flame spectrum test platform of the present invention can provide three common combustion scenarios: 1. Liquid pool fire; 2. Liquid spray fire; and 3. Gas fire. The corresponding combustion devices, namely, pool fire burners, spray fire burners, and gas fire burners, can be commercially available. However, they must meet the following requirements: When installed in the safety cylinder 102, the combustion device must be connected to the fuel supply system and the combustion aid supply system via the combustion mount 101.

[0056] It should be noted that the present invention also provides specially designed combustion mounts, oil pool fire burners, spray fire burners, and gas fire burners, which will not be expanded here and will be introduced in Example 2.

[0057] Ignitor 109 is removably mounted within the combustion chamber and is used to ignite the combustion device. Ignitor 109 can be a pulsed ignitor 109, which generates an electric spark through external control for ignition. Ignitor 109 is designed to be removable to avoid interfering with replacement of the combustion device and to be kept away from the combustion area after ignition.

[0058] In this embodiment 1, the igniter 109 is equipped with a position adjustment mechanism for adjusting the position of the igniter 109. The position adjustment mechanism includes: a transverse telescopic member 111 and a longitudinal telescopic member 110. The transverse telescopic member 111 and the longitudinal telescopic member 110 can both adopt an electric control push rod or other electric control telescopic device. Figure 1 One end of the transverse telescopic member 111 is connected to the inner wall of the combustion shell 100, and the other end is connected to one end of the longitudinal telescopic member 110; the other end of the longitudinal telescopic member 110 is connected to the igniter 109. In this way, by controlling the expansion and contraction of the transverse and longitudinal telescopic members 111, the igniter 109 can be moved. Of course, a design in which one end of the longitudinal telescopic member 110 is connected to the inner wall of the combustion shell 100 and the other end is connected to one end of the transverse telescopic member 111; the other end of the transverse telescopic member 111 is connected to the igniter 109 can also achieve the same position adjustment effect.

[0059] 3. Then look at the combustion control components, which include: flow controller, pressure regulating system 202, and temperature regulating system 201.

[0060] Among them, the flow controller is used to control the flow of liquid fuel, gas fuel and combustion aid.

[0061] It should be noted that the flow controller can be an electronically controlled flow control device such as an electronically controlled flow valve. Multiple flow controllers can be provided to independently control the liquid fuel, gaseous fuel, and combustion aid, thus preventing mutual interference. In this way, by adjusting the flow direction of the liquid fuel, gaseous fuel, and combustion aid through the flow controllers, different combustion sizes can be achieved.

[0062] The pressure regulating system 202 is connected to the combustion environment chamber and is used to adjust the pressure of the combustion environment chamber. The temperature regulating system 201 is connected to the combustion environment chamber and is used to adjust the temperature of the combustion environment chamber. In particular, the pressure regulating system 202 and the temperature regulating system 201 can both use commercially available mature equipment to ensure the adjustment effect.

[0063] 4. Now let's look at the spectrum acquisition component, which includes: a spectrometer. The spectrometer is used to collect all-round spectra when the combustion device is burning.

[0064] It should be noted that the present invention takes into account combustion in different situations, and therefore, the spectrometer adopts an ultraviolet-visible-infrared wide-band spectrometer to improve the accuracy and range of spectrum acquisition.

[0065] The spectrometer includes: a spectrometer body 31 and a fiber optic probe 33 ; the fiber optic probe 33 is wirelessly connected to the spectrometer body 31 to avoid interference when the fiber optic probe 33 moves in the combustion environment cavity.

[0066] Of course, in order to achieve full spectrum acquisition, the optical fiber probe 33 is equipped with a position adjustment component 32. The position adjustment component 32 is used to adjust the position of the optical fiber probe 33. Figure 1 、 Figure 2 The positioning assembly 32 includes an annular guide rail 321, an axial telescopic member 323, and a radial telescopic member 324. The annular guide rail 321 is positioned within the combustion environment chamber and surrounds the combustion mount 101. A motorized slider 322 is mounted on the annular guide rail 321. The bottom end of the axial telescopic member 323 is connected to the motorized slider 323, while the top end is connected to one end of the radial telescopic member 324. The fiber optic probe 33 is positioned at the other end of the radial telescopic member 324, facing the safety cylinder 102. The axial and radial telescopic members 323 and 324 can be electrically controlled using electronic actuators, such as electric push rods. The axial telescopic member 323 can be extended or retracted to adjust the fiber optic probe 33's acquisition height; the radial telescopic member 323 can be extended or retracted to adjust the fiber optic probe 33's acquisition distance; and the motorized slider 322 can be moved along the annular guide rail 321 to adjust the fiber optic probe 33's acquisition direction. These three components, working together, enable the fiber optic probe 33 to perform comprehensive spectrum acquisition of the flame burning in the combustion device within the safety cylinder 102.

[0067] 5. Finally, let’s look at the host computer 4, which is used to control the combustion control component, spectrum acquisition component, and smoke exhaust component to perform flame spectrum testing with variable combustion scales.

[0068] The host computer 4 can be a desktop computer, laptop, mobile phone, tablet computer, or other terminal with control and processing capabilities. The host computer 4 is connected to the combustion control component, spectrum acquisition component, and relevant electronic control components in the smoke exhaust component (using wireless or wired connections as appropriate, whichever is more effective), and the corresponding control program is installed on the host computer 4 to control it.

[0069] In addition, the host computer 4 can also receive the spectral data collected by the spectrum collection component and perform correlation analysis on it with the combustion condition parameters to obtain the change rules, which is convenient for subsequent research.

[0070] Example 2

[0071] This embodiment 2 provides specially designed oil pool fire burners, spray fire burners, and gas fire burners.

[0072] First of all, it should be noted that the combustion mounting base 101 is provided with a liquid fuel pipeline 1011 , a gas fuel pipeline 1013 , and an oxidant pipeline 1012 .

[0073] See Figure 3 The bottom end of liquid fuel pipeline 1011 is connected to liquid fuel tank 103 via supply pipeline 106, with its top end extending longitudinally into safety cylinder 102 and connected to elbow pipe 1014. Elbow pipe 1014 bends downward, with its bottom outlet facing combustion mount 101. The bottom end of gas fuel pipeline 1013 is connected to gas fuel tank 105 via supply pipeline 208, with its top end extending longitudinally into safety cylinder 102. The bottom end of the oxidant channel is connected to oxidant tank 104 via supply pipeline 307, with its top end extending longitudinally into safety cylinder 102.

[0074] See Figure 1 The flow controller includes a liquid fuel flow control valve 203, a gaseous fuel flow control valve 205, and an oxidant flow control valve 204. The liquid fuel flow control valve 203 is located on supply pipe 106; the gaseous fuel flow control valve 205 is located on supply pipe 2 108; and the oxidant flow control valve 204 is located on supply pipe 3 107. The liquid fuel flow control valve 203, the gaseous fuel flow control valve 205, and the oxidant flow control valve 204 are independently controlled.

[0075] 1. See Figure 3 、 Figure 4 The oil pool fire burner includes: an oil pool tank 610.

[0076] An isolation tube 611 is provided at the inner bottom of the oil pool 610 ; the isolation tube 611 is passed through from top to bottom and forms a passage for the liquid fuel pipeline 1011 and the elbow pipe 1014 to pass through.

[0077] In addition, in order to facilitate movement, a moving part 612 such as a roller may be installed on the oil pool tank 610 .

[0078] Specifically, the installation method of the oil pool 610 is as follows:

[0079] The oil sump 610 is placed on the burner mount 101 through the top of the safety tube 102. The liquid fuel pipeline 1011 and the elbow pipe 1014 are passed through the isolation tube 611. The oil sump 610 is then moved to one side so that the elbow pipe 1014 and the isolation tube 611 are offset and face the inner bottom of the oil sump 610. This prevents the liquid fuel from leaking onto the burner mount 101 and instead flows into the oil sump 610.

[0080] When the oil pool 610 reaches a preset filling volume, the igniter 109 can be moved to ignite the oil, and then the optical fiber probe 33 can be used to collect a full range of spectra.

[0081] 2. See Figure 5 、 Figure 6 The spray fire burner includes: a burner 620, an oxidant inlet pipe 621, a liquid fuel inlet pipe 624, a pipe connector 625, an atomizer 627, and an air jet guide nozzle 623.

[0082] Burner 1 620 is provided with a liquid flow channel 626 and a gas flow channel 622 (separately spaced). One end of the combustion-supporting agent inlet pipe 621 is connected to the first end of burner 1 620 for detachable connection to the top of the combustion-supporting agent pipe 1012. One end of the combustion-supporting agent inlet pipe 621 can be machined to be slightly larger than the top of the combustion-supporting agent pipe 1012 to facilitate plug-in connection.

[0083] The other end of the combustion-supporting agent inlet pipe 621 is connected to one end of the gas flow channel 622. One end of the liquid fuel inlet pipe 624 is connected to the second end of the burner 620 and is detachably connected to the bottom end of the elbow pipe 1014. One end of the liquid fuel inlet pipe 624 and the bottom end of the elbow pipe 1014 can be threaded, allowing them to be connected via a pipe connector 625. The other end of the liquid fuel inlet pipe 624 is connected to one end of the liquid flow channel 626.

[0084] The atomizer 627 and the jet guide nozzle 623 are spaced apart at the top of the burner 620 ; the atomizer 627 is connected to the other end of the liquid flow channel 626 ; the jet guide nozzle 623 is connected to the other end of the gas flow channel 622 .

[0085] Specifically, the installation method of the spray fire burner is as follows:

[0086] The spray fire burner is placed into the safety cylinder 102 through the top of the safety cylinder 102, and one end of the combustion-supporting agent inlet pipe 621 is connected to the top of the combustion-supporting agent pipeline 1012, and one end of the liquid fuel inlet pipe 624 is connected to the bottom of the elbow pipe 1014; in this way, the liquid fuel reaches the atomizer 627 through the elbow pipe 1014, the liquid fuel inlet pipe 624, and the liquid flow channel 626, and is atomized into small particles by the atomizer 627; the combustion-supporting agent reaches the jet guide nozzle 623 through the combustion-supporting agent inlet pipe 621 and the gas flow channel 622, and the atomized small particles are guided to make them evenly distributed.

[0087] Subsequently, the igniter 109 can be moved to ignite, and then the optical fiber probe 33 can be used to collect all-round spectrum.

[0088] 3. See Figure 7 、 Figure 8 The gas fire burner includes: a second burner 630, an air inlet pipe 1 631, a second air inlet pipe 632, and a burner nozzle 634.

[0089] A serpentine mixing flow channel 633 is provided in the second burner 630 ; the first air inlet pipe 631 and the second air inlet pipe 632 are spaced apart at the bottom end of the second burner 630 .

[0090] The top of the air inlet pipe 1 631 is connected to the bottom of the mixing channel 633, and the bottom is used to be detachably connected to the combustion-supporting agent pipeline 1012. The bottom of the air inlet pipe 1 631 can be processed to be slightly larger than the top of the combustion-supporting agent pipeline 1012 to achieve plug-in connection.

[0091] The top of the second intake pipe 632 is connected to the bottom of the mixing channel 633, and the bottom is used to be detachably connected to the top of the gas fuel pipeline 1013. The bottom of the second intake pipe 632 can be processed to be slightly larger than the top of the gas fuel pipeline 1013 to achieve plug-in connection.

[0092] The burner nozzle 634 is disposed at the top of the second burner 630 and is connected to the bottom of the mixing channel 633 .

[0093] Specifically, the installation method of the gas fire burner is as follows:

[0094] Place the gas fire burner into the safety cylinder 102 through the top of the safety cylinder 102, and connect the bottom end of the air inlet pipe 1 631 to the top of the combustion-supporting agent pipe 1012, and connect one end of the air inlet pipe 2 632 to the top of the gas fuel pipe 1013; in this way, the gas fuel enters the mixing channel 633 through the air inlet pipe 2 632, and the combustion-supporting agent enters the mixing channel 633 through the air inlet pipe 1 631, and reaches the burner 634 after being evenly mixed through the mixing channel 633.

[0095] Subsequently, the igniter 109 can be moved to ignite, and then the optical fiber probe 33 can be used to collect all-round spectrum.

[0096] The specially designed combustion device can ensure the stable operation of the flame spectrum test platform.

[0097] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A flame spectrum test platform with variable combustion scale, characterized in that: include: a combustion shell, the interior of which forms a combustion environment cavity; The combustion shell is detachably provided with a closed top cover, and the closed top cover is also connected to a smoke exhaust pipe; A combustion assembly, comprising: a fuel supply system, an oxidant supply system, a combustion mounting seat, and an igniter; wherein, the fuel supply system and the oxidant supply system are located outside the combustion environment chamber; the fuel supply system comprises: a liquid fuel tank and a gas fuel tank; the oxidant supply system comprises: an oxidant tank; the combustion mounting seat is located in the combustion environment chamber; a transparent safety cylinder is provided on the combustion mounting seat, and a combustion device is detachably installed in the safety cylinder; when the combustion device is installed in the safety cylinder, it is connected to the fuel supply system and the oxidant supply system through the combustion mounting seat; the combustion device is any one of an oil pool fire burner, a spray fire burner, and a gas fire burner; the igniter is movably provided in the combustion environment chamber, and is used to ignite the combustion device; The combustion control assembly includes: a flow controller, a pressure regulating system, and a temperature regulating system; wherein the flow controller is used to control the flow of liquid fuel, gaseous fuel, and combustion aid; the pressure regulating system is connected to the combustion environment chamber and is used to adjust the pressure of the combustion environment chamber; the temperature regulating system is connected to the combustion environment chamber and is used to adjust the temperature of the combustion environment chamber; The spectrum collection component includes: a spectrometer; the spectrometer is used to collect all-round spectrum when the combustion device is burning; The smoke exhaust assembly includes: an exhaust fan, a smoke exhaust control valve, and a filter; the smoke exhaust control valve is arranged on the smoke exhaust pipe to control the on / off of the smoke exhaust pipe; the filter and the exhaust fan are arranged in the smoke exhaust pipe at intervals to filter and exhaust the smoke generated by the combustion device; and The host computer is used to control the combustion control component, spectrum acquisition component, and smoke exhaust component to perform flame spectrum testing with variable combustion scales; The combustion mount is provided with a liquid fuel pipeline, a gas fuel pipeline, and an oxidant pipeline; the bottom end of the liquid fuel pipeline is connected to the liquid fuel tank through a supply pipeline 1, the top end of which extends longitudinally into the safety cylinder and is connected to an elbow pipe; the elbow pipe is bent downward, and the outlet at the bottom end faces the combustion mount; the bottom end of the gas fuel pipeline is connected to the gas fuel tank through a supply pipeline 2, and the top end of which extends longitudinally into the safety cylinder; the bottom end of the oxidant channel is connected to the oxidant tank through a supply pipeline 3, and the top end of which extends longitudinally into the safety cylinder; If the combustion device is a spray fire burner, the spray fire burner includes: a burner, an oxidant inlet pipe, a liquid fuel inlet pipe, pipe connectors, an atomizer, and an air jet guide nozzle; A liquid flow channel and a gas flow channel are provided in the burner; one end of the combustion-supporting agent inlet pipe is connected to the first end of the burner, and is used to be detachably connected to the top end of the combustion-supporting agent pipeline; the other end of the combustion-supporting agent inlet pipe is communicated with one end of the gas flow channel; one end of the liquid fuel inlet pipe is connected to the second end of the burner, and is used to be detachably connected to the bottom end of the elbow pipe; the other end of the liquid fuel inlet pipe is communicated with one end of the liquid flow channel; The atomizer and the air jet guide nozzle are spaced apart and arranged at the top of the burner; the atomizer is connected to the other end of the liquid flow channel; the air jet guide nozzle is connected to the other end of the gas flow channel; If the combustion device is a gas fire burner, the gas fire burner includes: a second burner, a first air intake pipe, a second air intake pipe, and a burner nozzle; A serpentine mixing flow channel is provided in the second burner; the first and second air intake pipes are spaced apart and arranged at the bottom end of the second burner; the top end of the first air intake pipe is connected to the bottom end of the mixing flow channel, and the bottom end is used to be detachably connected to the combustion-supporting agent pipeline; the top end of the second air intake pipe is connected to the bottom end of the mixing flow channel, and the bottom end is used to be detachably connected to the top end of the gas fuel pipeline; The burner nozzle is arranged at the top end of the burner and is communicated with the bottom end of the mixing flow channel.

2. The flame spectrum test platform with variable combustion scale according to claim 1, characterized in that: The liquid fuel tank is any one of a gasoline tank, a diesel tank, and a kerosene tank; The gas fuel tank is any one of a natural gas tank, an artificial gas tank, a liquefied petroleum gas tank, a biogas tank, and a coal gas tank; The combustion-supporting agent tank is any one of an oxygen tank and an air tank.

3. The flame spectrum test platform with variable combustion scale according to claim 1, characterized in that: The flow controller includes: a liquid fuel flow control valve, a gas fuel flow control valve, and an oxidant flow control valve; The liquid fuel flow control valve is arranged on the first supply pipeline; the gas fuel flow control valve is arranged on the second supply pipeline; and the combustion-supporting agent flow control valve is arranged on the third supply pipeline.

4. The flame spectrum test platform with variable combustion scale according to claim 3, characterized in that: If the combustion device is an oil pool fire burner, the oil pool fire burner includes: an oil pool tank; An isolation cylinder is provided at the inner bottom of the oil pool; the isolation cylinder is passed through from top to bottom and forms a passage for liquid fuel pipelines and elbow pipes to pass through.

5. The flame spectrum test platform with variable combustion scale according to claim 1, characterized in that: The igniter is equipped with a position adjustment mechanism for adjusting the position of the igniter; The position adjustment mechanism includes: a transverse telescopic member and a longitudinal telescopic member; One end of the transverse telescopic member is connected to the inner wall of the combustion shell, and the other end is connected to one end of the longitudinal telescopic member; the other end of the longitudinal telescopic member is connected to the igniter.

6. The flame spectrum test platform with variable combustion scale according to claim 1, characterized in that: The top of the combustion shell is provided with an opening; the inner wall of the closed top cover is provided with a sealing ring for achieving sealing when covering the top opening of the combustion shell.

7. The flame spectrum test platform with variable combustion scale according to claim 1, characterized in that: The spectrometer comprises: a spectrometer body and an optical fiber probe; the optical fiber probe is connected to the spectrometer body via a wireless connection; The optical fiber probe is equipped with a position adjustment component, which is used to adjust the position of the optical fiber probe; The positioning assembly includes: an annular guide rail, an axial telescopic part, and a radial telescopic part; the annular guide rail is arranged in the combustion environment cavity and surrounds the combustion mounting seat; an electric slider is provided on the annular guide rail; the bottom end of the axial telescopic part is connected to the electric slider, and the top end is connected to one end of the radial telescopic part; the optical fiber probe is arranged at the other end of the radial telescopic part and faces the safety cylinder.

8. The flame spectrum test platform with variable combustion scale according to claim 1, characterized in that: The host computer is also used to receive the spectrum data collected by the spectrum collection component, and perform correlation analysis on the spectrum data with the combustion condition parameters to obtain the change rules.

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