Flame spectrum test platform with variable combustion scale

Abstract

The invention relates to the technical field of flame spectrum testing, in particular to a flame spectrum testing platform with a variable combustion scale. The invention discloses a flame spectrum test platform with a variable combustion scale. The flame spectrum test platform comprises a combustion shell, a combustion assembly, a combustion control assembly, a spectrum acquisition assembly, a smoke exhaust assembly and an upper computer. According to the invention, by constructing the closable and openable combustion environment cavity and adjusting the flow of the fuel and the oxidant and the pressure and temperature of the combustion environment cavity, the flexible change of the combustion scale is realized, various actual fire scenes can be simulated, different experiment requirements can be met, various combustion types are supported, and the experiment efficiency is improved. And not only is liquid fuel combustion supported, but also gas liquid fuel combustion is expanded. The problem that an existing flame spectrum testing platform is single in fuel type and cannot provide variable combustion conditions is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of flame spectrum testing, and more specifically, 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); moreover, they also present different spectral characteristics at different combustion stages (such as the initial stage of ignition, the steady-state development stage, and the decay stage). By studying the spectral characteristics of flames, we can obtain information on the physical and chemical characteristics of flames, providing a more accurate basis for fire detection, which has important practical significance.

[0003] The Chinese invention patent with the 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. A condensation chamber is also arranged on the combustion platform. 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 mixed fuel condensed into a liquid state to the combustion chamber, and the detection assembly is used to monitor and analyze the burning flame. This patent makes the atomized liquid fuel evenly mixed by re-liquefying the liquid fuel after atomization, and then conveys the condensed mixed liquid state to the combustion platform for combustion, so as to simulate the state of the combustion of the mixed liquid fuel, thereby improving the uniformity of the mixing of multiple liquid fuels and improving the experimental effect of the liquid combustion experiment.

[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 have a single fuel type.

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

[0007] Therefore, a flame spectrum test 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 spectrum characteristics. Summary of the invention

[0008] In view of this, it is necessary to provide a flame spectrum test platform with a 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 implemented by 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 a smoke exhaust pipe is also connected to the closed top cover.

[0012] The combustion assembly includes: a fuel supply system, an oxidant supply system, a combustion mounting seat, and an igniter. The fuel supply system and the oxidant supply system are located outside the combustion environment cavity; the fuel supply system includes: a liquid fuel tank and a gas fuel tank; the oxidant supply system includes: an oxidant tank; the combustion mounting seat is located in the combustion environment cavity; 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 arranged in the combustion environment cavity, 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, gas fuel, and combustion aid; the pressure regulating system is connected to the combustion environment cavity to adjust the pressure of the combustion environment cavity; the temperature regulating system is connected to the combustion environment cavity to adjust the temperature of the combustion environment cavity.

[0014] The spectrum collection component includes: a spectrometer. The spectrometer is used to collect all-round spectrum 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 arranged on the smoke exhaust pipe to control the on and 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.

[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 invention realizes flexible changes in combustion scale by constructing a closable and openable combustion environment chamber, regulating the flow of fuel and oxidant, and adjusting the pressure and temperature of the combustion environment chamber. It can simulate a variety of actual fire scenes and adapt to different experimental needs.

[0020] 2. The present invention supports multiple combustion types, not only supporting liquid fuel combustion, but also expanding gaseous and liquid fuel combustion.

[0021] 3. The present invention also provides a specially designed combustion mounting seat and combustion device, which can ensure the normal operation of different combustion types. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A structural diagram of a flame spectrum test platform with a variable combustion scale provided in Example 1 of the present invention;

[0024] Figure 2 for Figure 1 Top view of the middle circular guide rail and vertical guide rail.

[0025] Figure 3 for Figure 1 The state of the oil pool fire burner when the middle combustion mounting seat is installed is one;

[0026] Figure 4 for Figure 1 State 2 when the oil pool fire burner is installed in the middle combustion mounting seat;

[0027] Figure 5 for Figure 1 The state diagram of the spray fire burner installed in the middle combustion mounting seat;

[0028] Figure 6 for Figure 5 A cross-sectional view of

[0029] Figure 7 for Figure 1 The state diagram of the gas fire burner installed in the combustion mounting seat;

[0030] Figure 8 for Figure 7 A cross-sectional view of

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 100. Combustion shell, 101. Combustion mounting seat, 102. Safety cylinder, 103. Liquid fuel tank, 104. Combustion aid tank, 105. Gas fuel tank, 106. Supply pipeline 1, 107. Supply pipeline 3, 108. Supply pipeline 2, 109. Igniter, 110. Longitudinal telescopic member, 111. Transverse telescopic member, 1011. Liquid fuel pipeline, 1012. Combustion aid 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 component, 33. Optical fiber probe, 321. Annular guide rail, 322. Electric slider, 323. Axial telescopic part, 324. Radial telescopic part;

[0035] 4. Host computer;

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

[0037] 610, oil pool, 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, pipeline connector, 626, liquid flow channel, 627, atomizer;

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

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. For the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work 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 at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

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

[0043] Example 1

[0044] See also Figure 1 , which shows a structural diagram of a flame spectrum test platform with a variable combustion scale provided in this embodiment 1, which is different from the existing patent in 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 can adapt 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 shell 100, which can be a box design. It is recommended to be made of hard materials to provide a certain degree of durability. A combustion environment cavity is formed inside the combustion shell 100 to accommodate some components.

[0048] As mentioned above, in order to achieve adjustable combustion scale, the combustion environment cavity should be closed. In order to facilitate the subsequent replacement of the combustion device, the combustion environment cavity should be openable. Therefore, the combustion shell 100 is detachably provided with a closed top cover: the top of the combustion shell 100 is provided with an opening, and the closed top cover covers the top of the combustion shell 100 to achieve flexible disassembly; at the same time, a sealing ring is provided inside the closed top cover, so that when the closed top cover covers the top opening of the combustion shell 100, the two can be 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 assembly 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 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 absorb the smoke generated by combustion; the exhaust fan can use a conventional commercially available fan to form an exhaust airflow and inhale 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 mounting seat 101 , and an igniter 109 .

[0051] Among them, the fuel supply system and the combustion-aiding 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-aiding agent supply system includes: an combustion-aiding agent tank 104. It should be noted that the fuel supply system and the combustion-aiding 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-aiding 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 cylinder 102 is provided on the combustion mounting seat 101. The safety cylinder 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 for replacing the combustion device reserved at the top.

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

[0055] It should be noted that the flame spectrum test platform of the present invention can provide three common combustion conditions: 1. Liquid oil pool fire combustion; 2. Liquid spray fire combustion; 3. Gas fire combustion. Then, the corresponding combustion devices are oil pool fire burners, spray fire burners, and gas fire burners, which can be commercially available, but need to meet the following requirements: when the combustion device is installed 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.

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

[0057] The igniter 109 is movably arranged in the combustion environment chamber for igniting the combustion device. The igniter 109 can be a pulse igniter 109, which generates electric sparks through external control for ignition. The igniter 109 is designed to be movable because the igniter 109 needs to avoid interfering with the replacement of the combustion device and needs to be 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 electrically controlled telescopic device such as an electrically controlled push rod. 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 telescopic member 111 and the longitudinal telescopic member 110, the movement of the igniter 109 can be achieved. Of course, it can also be designed like this: 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, which 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 are provided to independently control the liquid fuel, gaseous fuel, and combustion aid to avoid mutual interference. In this way, different combustion sizes can be provided by adjusting the flow direction of the liquid fuel, gaseous fuel, and combustion aid through the flow controller.

[0062] The pressure regulating system 202 is connected to the combustion environment chamber to adjust the pressure of the combustion environment chamber; the temperature regulating system 201 is connected to the combustion environment chamber to adjust the temperature of the combustion environment chamber. 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. Let's look at the spectrum collection 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 an optical fiber probe 33 ; the optical fiber probe 33 is wirelessly connected to the spectrometer body 31 , so as to avoid interference caused by the optical fiber probe 33 when moving in the combustion environment cavity.

[0066] Of course, in order to achieve omni-directional spectrum collection, 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 arranged in the combustion environment cavity and surrounds the combustion mounting seat 101; an electric slider 322 is arranged on the annular guide rail 321; the bottom end of the axial telescopic member 323 is connected to the electric slider 323, and the top end is connected to one end of the radial telescopic member 324; the optical fiber probe 33 is arranged at the other end of the radial telescopic member 324 and faces the safety cylinder 102. The axial telescopic member 323 and the radial telescopic member 324 can adopt electric control devices such as electric push rods. In this way, the axial telescopic member 323 can be extended and retracted to adjust the collection height of the optical fiber probe 33; the radial telescopic member 323 can be extended and retracted to adjust the collection distance of the optical fiber probe 33; the electric slider 322 moves along the annular guide rail 321 to adjust the collection direction of the optical fiber probe 33; the three cooperate to enable the optical fiber probe 33 to perform all-round spectrum collection of the flame burning in the combustion device in 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, notebook, mobile phone, tablet computer, etc., which has control and processing functions. The host computer 4 is connected to the combustion control component, the spectrum acquisition component, and the relevant electric control components in the smoke exhaust component (using wireless connection or wired connection as appropriate, whichever can achieve control), 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 spectral collection component, and associate it with the combustion condition parameters for analysis to obtain the change rules, which is convenient for subsequent research.

[0070] Example 2

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

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

[0073] See also Figure 3 The bottom end of the liquid fuel pipeline 1011 is connected to the liquid fuel tank 103 through the supply pipeline 106, and the top end is longitudinally extended into the safety cylinder 102 and connected to the elbow pipe 1014; the elbow pipe 1014 is bent downward, and the outlet of the bottom end faces the combustion mounting seat 101. The bottom end of the gas fuel pipeline 1013 is connected to the gas fuel tank 105 through the supply pipeline 2 108, and the top end is longitudinally extended into the safety cylinder 102. The bottom end of the combustion-supporting agent channel is connected to the combustion-supporting agent tank 104 through the supply pipeline 3 107, and the top end is longitudinally extended into the safety cylinder 102.

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

[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 connected vertically 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 pool 610 is placed on the combustion mounting seat 101 through the top of the safety cylinder 102, and the liquid fuel pipeline 1011 and the elbow pipe 1014 are passed through the isolation cylinder 611, and then the oil pool 610 is moved to one side so that the elbow pipe 1014 and the isolation cylinder 611 are staggered and face the inner bottom of the oil pool 610. In this way, the liquid fuel will not leak on the combustion mounting seat 101, but will flow into the oil pool 610.

[0080] When the oil pool 610 reaches a preset filling volume, the igniter 109 can be moved to ignite, 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 pipeline connector 625, an atomizer 627, and an air jet guide nozzle 623.

[0082] The burner 1 620 is provided with a liquid flow channel 626 and a gas flow channel 622 (the two are separated). One end of the combustion-supporting agent inlet pipe 621 is connected to the first end of the burner 1 620, and is used for detachable connection with the top of the combustion-supporting agent pipeline 1012. One end of the combustion-supporting agent inlet pipe 621 can be processed to be slightly larger than the top of the combustion-supporting agent pipeline 1012, so as to achieve 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 used to be 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 processed into threads, so as to be connected through the 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 arranged at intervals on 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] Place the spray fire burner into the safety cylinder 102 through the top of the safety cylinder 102, and connect one end of the combustion-aiding agent inlet pipe 621 to the top of the combustion-aiding agent pipeline 1012, and connect one end of the liquid fuel inlet pipe 624 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-aiding agent reaches the jet guide nozzle 623 through the combustion-aiding agent inlet pipe 621 and the gas flow channel 622, and guides the atomized small particles 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 the spectrum in all directions.

[0088] 3. See Figure 7 , Figure 8 The gas fire burner includes: a burner 2 630 , an air inlet pipe 1 631 , an air inlet pipe 2 632 , 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 arranged at intervals at the bottom end of the second burner 630 .

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

[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, so as 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 aid pipeline 1012, and connect one end of the air inlet pipe 2 632 to the top of the gas fuel pipeline 1013; in this way, the gas fuel enters the mixing channel 633 through the air inlet pipe 2 632, and the combustion aid 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 the spectrum in all directions.

[0096] Based on the above specially designed combustion device, the flame spectrum test platform can be guaranteed to work stably.

[0097] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A flame spectrum test platform with variable combustion scale, characterized in that: include: A combustion casing, the interior of which forms a combustion environment cavity; The combustion shell is detachably provided with a closed top cover, and a smoke exhaust pipe is also connected to the closed top cover; 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 cavity; 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 cavity; 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 with 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 arranged in the combustion environment cavity, and is used to ignite the combustion device; A combustion control assembly, comprising: 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, gas fuel, and combustion aid; the pressure regulating system is connected to the combustion environment chamber to adjust the pressure of the combustion environment chamber; the temperature regulating system is connected to the combustion environment chamber to adjust the temperature of the combustion environment chamber; The spectrum collection component comprises: a spectrometer; the spectrometer is used to collect all-round spectrum when the combustion device is burning; The smoke exhaust component comprises: 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 and 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; as well as The host computer is used to control the combustion control component, the spectrum acquisition component, and the smoke exhaust component to perform flame spectrum testing with variable combustion scales.

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-to-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 combustion mounting seat 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, and the top end 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 mounting seat; The bottom end of the gas fuel pipeline is connected to the gas fuel tank through the second supply pipeline, and the top end extends longitudinally into the safety cylinder; The bottom end of the combustion-supporting agent channel is connected to the combustion-supporting agent tank through a supply pipe 3, and the top end thereof extends longitudinally into the safety cylinder; 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 supply pipeline one; the gas fuel flow control valve is arranged on the supply pipeline two; and the combustion-supporting agent flow control valve is arranged on the supply pipeline three.

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 comprises: an oil pool tank; The inner bottom of the oil pool is provided with an isolating cylinder; the isolating 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 3, characterized in that: 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, a pipe connector, an atomizer, and an air jet guide nozzle; A liquid flow channel and a gas flow channel are arranged in the burner 1; one end of the combustion-supporting agent inlet pipe is connected to the first end of the burner 1, 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 1, 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 jet guide nozzle are arranged at intervals at the top of the burner; the atomizer is connected to the other end of the liquid flow channel; the jet guide nozzle is connected to the other end of the gas flow channel.

6. The flame spectrum test platform with variable combustion scale according to claim 3, characterized in that: If the combustion device is a gas fire burner, the gas fire burner comprises: a second burner, a first air intake pipe, a second air intake pipe, and a burner nozzle; The burner 2 is provided with a serpentine mixing flow channel; the air intake pipe 1 and the air intake pipe 2 are arranged at the bottom end of the burner 2 at intervals; the top end of the air intake pipe 1 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 air intake pipe 2 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.

7. 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 piece is connected to the inner wall of the combustion shell, and the other end is connected to one end of the longitudinal telescopic piece; the other end of the longitudinal telescopic piece is connected to the igniter.

8. 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.

9. 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 wireless; 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 arranged 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.

10. 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 associate the spectrum data with the combustion condition parameters to obtain the change rules.

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