CN107859998B - Application of mixed combustible gas burner test device in real fire extinguishing training - Google Patents
Application of mixed combustible gas burner test device in real fire extinguishing training Download PDFInfo
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- CN107859998B CN107859998B CN201711362394.5A CN201711362394A CN107859998B CN 107859998 B CN107859998 B CN 107859998B CN 201711362394 A CN201711362394 A CN 201711362394A CN 107859998 B CN107859998 B CN 107859998B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a mixed combustible gas burner test device, wherein a first gas source and a second gas source are respectively communicated with two gas inlets of a gas mixer through a first gas supply pipeline and a second gas supply pipeline, a mixed gas outlet of the gas mixer is communicated with a main burner, and an inert gas source is respectively communicated with the first gas supply pipeline and the second gas supply pipeline through a three-way valve. Through the mixed combustible gas burner test device of the optimal design, the mixed combustible gas burner test device is suitable for the requirements of different mixed combustible gas components, the mixed combustible gas components are changed by changing the fuel gas source, the modification cost is low, the real fire scene can be better simulated, and after the supply of the combustible gas is cut off, inert gas is blown into the gas supply pipeline and the fuel gas mixer through the inert gas source, so that the mixed fuel gas is thoroughly discharged to the main burner for combustion, and the environment pollution and the dangers caused by the residual combustible gas in the structure are avoided.
Description
Technical Field
The invention relates to the technical field of fire extinguishing training, in particular to application of a mixed combustible gas burner test device in real fire extinguishing training.
Background
The real fire extinguishing training is an indispensable part of the daily training of firefighters, and in China, the fire source for the real fire extinguishing training is mainly liquid oil fire and solid fire. Because the development of liquid oil fire and solid fire is not easy to be controlled by human, when an emergency occurs in the fire extinguishing training, the fire source is difficult to be controlled or extinguished in time. In addition, after the liquid oil fire and the solid fire are extinguished, the residual unburned fuel is not easy to dispose, and environmental pollution is easily caused. In view of the deficiencies of liquid and solid fires, improvements in the sources of fire in fire extinguishing training are needed.
In the use process of the gas fire, the burning rate is controlled by controlling the flow, the control is convenient, the fire source burning can be cut off by closing the combustible gas supply when encountering an emergency, and meanwhile, the environmental pollution caused by a large amount of residual unburned fuel can not be caused. Therefore, compared with liquid oil fire and solid fire, the gas fire has the advantages of easy control, no residual fuel and the like, and therefore, the gas fire is gradually becoming a main fire source for fire-fighting and fire-extinguishing training. However, the common gas fuel such as methane, propane and the like generates less smoke during combustion, and the heat radiation amount is smaller and is quite different from the smoke concentration and the heat radiation amount in an actual fire scene. Therefore, in order to simulate the actual fire scene more truly, a certain amount of fuel with large smoke quantity and heat radiation quantity needs to be added into the common gas fuel, so that the fire scene can be more similar to the actual fire scene on the basis of reducing the fire-extinguishing training cost and improving the fire-extinguishing training safety.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides an application of a mixed combustible gas burner test device in real fire extinguishing training.
The invention provides an application of a mixed combustible gas burner test device in real fire extinguishment training, which comprises the following steps: the device comprises a first gas source, a first gas supply pipeline, a second gas source, a second gas supply pipeline, an inert gas source, a gas mixer, a main burner, a first three-way valve, an inert gas three-way valve and a second three-way valve;
the gas mixer is provided with a first gas inlet, a second gas inlet and a mixed gas outlet;
the first gas source is communicated with a first port of a first three-way valve through a first gas supply pipeline, a second port of the first three-way valve is communicated with the first gas inlet through a pipeline, the second gas source is communicated with a first port of a second three-way valve through a second gas supply pipeline, a second port of the second three-way valve is communicated with the second gas inlet through a pipeline, the inert gas source is communicated with a first port of an inert gas three-way valve through a pipeline, and a third port of the first three-way valve and a third port of the second three-way valve are respectively communicated with a second port and a third port of the inert gas three-way valve;
the mixed gas outlet is communicated with the main burner.
Preferably, the system further comprises a mass flow control system, a first mass flow controller is arranged on the first air supply pipeline, a second mass flow controller is arranged on the second air supply pipeline, and the first mass flow controller and the second mass flow controller are respectively connected with the mass flow control system.
Preferably, the first air supply line is provided with a first pressure reducing valve and a first check valve, and the second air supply line is provided with a second pressure reducing valve and a second check valve.
Preferably, the gas supply system further comprises a pilot branch and a resident burner, wherein the first gas supply pipeline is provided with a branch three-way valve, one end of the pilot branch is communicated with a third port of the branch three-way valve, and the other end of the pilot branch is communicated with the resident burner.
Preferably, the ignition branch is provided with a branch mass flow controller, and the branch mass flow controller is connected with the mass flow control system.
Preferably, the first pressure reducing valve, the first check valve, and the bypass three-way valve are disposed in this order on the first gas supply line from the first gas source toward the first three-way valve.
Preferably, a combustion chamber with an open top is arranged in the main burner, and the resident burner is positioned at the opening for igniting the combustion chamber.
Preferably, a third pressure reducing valve is arranged on a pipeline between the inert gas source and the inert gas three-way valve.
In the invention, the mixed combustible gas burner test device is applied to real fire extinguishment training, a first gas source and a second gas source are respectively communicated with two gas inlets of a gas mixer through a first gas supply pipeline and a second gas supply pipeline, a mixed gas outlet of the gas mixer is communicated with a main burner, and an inert gas source is respectively communicated with the first gas supply pipeline and the second gas supply pipeline through a three-way valve. Through the application of the mixed combustible gas burner test device with the optimal design in real fire extinguishing training, the first gas source and the second gas source are suitable for the requirements of different mixed combustible gas components, the mixed combustible gas components are changed by changing the gas sources, the modification cost is low, the real fire scene can be better simulated, and inert gas is blown into the gas supply pipeline and the gas mixer through the inert gas source after the supply of the combustible gas is cut off, so that the mixed combustible gas is thoroughly discharged to the main burner for combustion, and environmental pollution and dangers caused by residual combustible gas in the structure are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a test device for a mixed combustible gas burner in the application of real fire extinguishing training.
Detailed Description
Referring to fig. 1, fig. 1 is a schematic structural diagram of a test device for a mixed flammable gas burner according to the present invention applied to fire extinguishing training.
Referring to fig. 1, the application of the mixed combustible gas burner test device in real fire extinguishing training provided by the invention comprises the following steps: a first gas source 1, a first gas supply pipeline, a second gas source 3, a second gas supply pipeline, an inert gas source 2, a gas mixer 24, a main burner 26, a first three-way valve 15, an inert gas three-way valve 17 and a second three-way valve 19;
the gas mixer 24 is provided with a first gas inlet, a second gas inlet and a mixed gas outlet;
the first fuel gas source 1 is communicated with a first port of the first three-way valve 15 through a first gas supply pipeline, a second port of the first three-way valve 15 is communicated with the first gas inlet through a pipeline, the second fuel gas source 3 is communicated with a first port of the second three-way valve 19 through a second gas supply pipeline, a second port of the second three-way valve 19 is communicated with the second gas inlet through a pipeline, the inert gas source 2 is communicated with a first port of the inert gas three-way valve 17 through a pipeline, and a third port of the first three-way valve 15 and a third port of the second three-way valve 19 are respectively communicated with a second port and a third port of the inert gas three-way valve 17;
the mixed gas outlet communicates with the main burner 26.
In the specific working process of the mixed combustible gas burner test device in the application of the real fire extinguishing training, a first gas source and a second gas source are selected according to requirements, and the first gas source and the second gas source supply gas to the gas mixer through a first gas supply pipeline and a second gas supply pipeline respectively, and the mixed gas is sent to the main burner for combustion; when the supply of the combustible gas is cut off, inert gas is blown into the gas supply pipeline and the gas mixer through the inert gas source, so that the mixed gas is thoroughly discharged to the main burner for combustion.
In this embodiment, the proposed mixed combustible gas burner test device is applied to real fire extinguishment training, the first gas source and the second gas source are respectively communicated with two gas inlets of the gas mixer through a first gas supply pipeline and a second gas supply pipeline, a mixed gas outlet of the gas mixer is communicated with the main burner, and the inert gas source is respectively communicated with the first gas supply pipeline and the second gas supply pipeline through a three-way valve. The mixed combustible gas burner test device with the optimal design is applied to real fire extinguishing training, is suitable for the requirements of different mixed combustible gas components, changes the mixed combustible gas components by changing a gas source, has low modification cost, can better simulate a real fire scene, and blows inert gas into a gas supply pipeline and a gas mixer through an inert gas source after cutting off the supply of the combustible gas, so that the mixed gas is thoroughly discharged to a main burner for combustion, and environmental pollution and dangers caused by residual combustible gas in a structure are avoided.
In the specific embodiment, the gas-liquid separator further comprises a pilot branch and a resident burner 25, the branch three-way valve 12 is arranged on the first gas supply pipeline, one end of the pilot branch is communicated with the third port of the branch three-way valve 12, the other end of the pilot branch is communicated with the resident burner 25, a combustion cavity with an open top is arranged in the main burner 26, and the resident burner 25 is positioned at the opening for igniting the combustion cavity.
In other specific embodiments, the air supply system further comprises a mass flow control system, a first mass flow controller 22 is arranged on the first air supply pipeline, a second mass flow controller 23 is arranged on the second air supply pipeline, the first mass flow controller 22 and the second mass flow controller 23 are respectively connected with the mass flow control system, and the mass flow control system can adjust the air supply amounts of the first air supply pipeline and the second air supply pipeline according to requirements.
In a further specific control mode, a bypass mass flow controller 21 is arranged on the ignition bypass, and the bypass mass flow controller 21 is connected with a mass flow control system.
In order to improve the safety of the gas pipeline, in the specific embodiment, a first pressure reducing valve 7 and a first check valve 10 are arranged on the first gas supply pipeline, and a second pressure reducing valve 9 and a second check valve 11 are arranged on the second gas supply pipeline; in a further specific embodiment, the first pressure reducing valve 7, the first check valve 10 and the branch three-way valve 12 are arranged in sequence from the first fuel gas source 1 to the first three-way valve 15 on the first gas supply pipeline; a third pressure reducing valve 8 is arranged on the pipeline between the inert gas source 2 and the inert gas three-way valve 17.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. An application of a mixed combustible gas burner test device in real fire extinguishment training, comprising: the gas mixing device comprises a first gas source (1), a first gas supply pipeline, a second gas source (3), a second gas supply pipeline, an inert gas source (2), a gas mixer (24), a main burner (26), a first three-way valve (15), an inert gas three-way valve (17) and a second three-way valve (19);
the gas mixer (24) is provided with a first gas inlet, a second gas inlet and a mixed gas outlet;
the first gas source (1) is communicated with a first port of the first three-way valve (15) through a first gas supply pipeline, a second port of the first three-way valve (15) is communicated with the first gas inlet through a pipeline, the second gas source (3) is communicated with a first port of the second three-way valve (19) through a second gas supply pipeline, a second port of the second three-way valve (19) is communicated with the second gas inlet through a pipeline, the inert gas source (2) is communicated with a first port of the inert gas three-way valve (17) through a pipeline, and a third port of the first three-way valve (15) and a third port of the second three-way valve (19) are respectively communicated with a second port and a third port of the inert gas three-way valve (17);
the mixed gas outlet is communicated with a main burner (26);
the first gas source and the second gas source are suitable for the requirements of different mixed combustible gas components, and the mixed combustible gas components can be changed by changing the gas sources, so that the real fire scene can be better simulated.
2. The use of a hybrid gas burner test device according to claim 1, further comprising a mass flow control system, wherein the first gas supply line is provided with a first mass flow controller (22), the second gas supply line is provided with a second mass flow controller (23), and the first mass flow controller (22) and the second mass flow controller (23) are connected to the mass flow control system, respectively.
3. Use of a hybrid gas burner test device according to claim 1 in real fire training, characterized in that a first gas supply line is provided with a first pressure relief valve (7) and a first check valve (10), and a second gas supply line is provided with a second pressure relief valve (9) and a second check valve (11).
4. Use of a hybrid gas burner test device according to claim 1 or 3 in real fire training, further comprising a pilot branch and a resident burner (25), the first gas supply line being provided with a branch three-way valve (12), the pilot branch being in communication with the third port of the branch three-way valve (12) at one end and with the resident burner (25) at the other end.
5. The use of a hybrid gas burner test device in accordance with claim 4, further comprising a mass flow control system, wherein the pilot branch is provided with a branch mass flow controller (21), and wherein the branch mass flow controller (21) is connected to the mass flow control system.
6. The use of a mixed combustible gas burner test apparatus according to claim 4 in real fire training, wherein the first pressure reducing valve (7), the first check valve (10) and the branch three-way valve (12) are arranged in sequence on the first gas supply pipeline from the first gas source (1) to the first three-way valve (15).
7. Use of a hybrid gas burner test device according to claim 4 in real fire training, characterized in that a combustion chamber with an open top is provided in the main burner (26), and that a resident burner (25) is located at said opening for igniting said combustion chamber.
8. The use of a mixed combustible gas burner test apparatus according to claim 1 in real fire training, wherein a third pressure reducing valve (8) is provided in the line between the inert gas source (2) and the inert gas three-way valve (17).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362394.5A CN107859998B (en) | 2017-12-18 | 2017-12-18 | Application of mixed combustible gas burner test device in real fire extinguishing training |
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| CN201711362394.5A CN107859998B (en) | 2017-12-18 | 2017-12-18 | Application of mixed combustible gas burner test device in real fire extinguishing training |
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| CN107859998A CN107859998A (en) | 2018-03-30 |
| CN107859998B true CN107859998B (en) | 2023-10-20 |
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| CN112407346B (en) * | 2020-11-12 | 2022-07-19 | 中国空间技术研究院 | Thermal test method and device for metal fiber surface combustion structure |
| CN115201400A (en) * | 2022-04-26 | 2022-10-18 | 安徽理工大学 | Modularized liquefied petroleum gas diffusion burner test device |
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