Inertial diffusion type gas infrared burner and combustion device
By installing ignition burners and detection burners on the burner body, the problem of ignition failure in inertial diffusion type gas infrared burners is solved, enabling timely monitoring of flame ignition and ensuring production quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WISDRI WUHAN WIS IND FURNACE
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-07
AI Technical Summary
Inertial diffusion type gas infrared burners may fail to deliver flame in time or malfunction during ignition, leading to ignition failure, which affects the quality of steel billet production, and existing equipment may not be able to detect this in time.
An ignition burner and a detection burner are installed on the burner body. The flame transmission is monitored by the detection burner to ensure that the success or failure of flame ignition can be checked by the operators in a timely manner.
It enables timely monitoring of flame ignition, avoiding ignition failures caused by untimely flame transmission or malfunctions, and ensuring the quality of billet production.
Smart Images
Figure CN224470230U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of burners, and more specifically, to an inertial diffusion type infrared gas burner and combustion device. Background Technology
[0002] Inertial diffusion type gas infrared burner is a type of porous medium burner. It has the advantages of high combustion efficiency and low pollutant emissions, while also having the advantages of small burner size, compact structure, wide load adjustment range and stable combustion.
[0003] When conventional inertial diffusion porous media burners are used in pickling, normalizing, and annealing lines for plate heating and related silicon steel continuous annealing drying furnaces, ignition failures may occur due to the relatively long length of the burner and the risk of untimely flame transmission or malfunctions during the ignition process. Operators often cannot detect this in time, which directly affects the quality of billet production. Utility Model Content
[0004] The purpose of this application is to provide an inertial diffusion type gas infrared burner and combustion device, which allows operators to conveniently check the success or failure of flame ignition in a timely manner.
[0005] This application is implemented as follows:
[0006] This application provides an inertial diffusion type gas infrared burner, which includes a burner body. The burner body includes a porous medium mounting plate with a mounting groove on the top, a porous medium shell connected around the porous medium mounting plate, and a base plate connected to the bottom of the porous medium shell. A porous medium layer is fixed in the mounting groove. The top of the base plate has a plurality of combustion air chambers spaced apart along the length of the porous medium mounting plate. Above each combustion air chamber are a plurality of gas chambers spaced apart along the length of the porous medium mounting plate. The top of each combustion air chamber is connected to the bottom of at least one gas chamber through a connecting pipe. The bottom wall of the porous medium mounting plate has a plurality of mixer nozzles connected to the bottom wall of the mounting groove. The top of each gas chamber is connected to the bottom of the plurality of mixer nozzles through a mixed gas delivery pipe. The bottom of each combustion air chamber is connected to a combustion air delivery pipe, and the bottom of each gas chamber is connected to a gas delivery pipe. The porous medium shell is connected to an ignition burner and a detection burner arranged opposite to each other and located above both ends of the porous medium mounting plate.
[0007] In some alternative implementations, each gas chamber is connected to a plurality of mixed gas delivery pipes spaced apart along the width of the porous media mounting plate, and adjacent mixed gas delivery pipes at the top of each gas chamber are staggered along the length of the porous media mounting plate, and a corresponding mixer nozzle is connected to the top of each mixed gas delivery pipe.
[0008] In some alternative implementations, the bottoms of a plurality of sequentially arranged gas delivery pipes are connected to a gas distribution pipe, the bottom of which is connected to a gas branch pipe.
[0009] In some alternative implementations, the porous media mounting plate is made of alumina polycrystalline mullite.
[0010] This application also provides an inertial diffusion type gas infrared combustion device, which includes at least one of the above-mentioned inertial diffusion type gas infrared burners and a combustion air main pipe. The combustion air supply pipes of each inertial diffusion type gas infrared burner are respectively connected to the combustion air main pipe through combustion air branch pipes. The combustion air main pipe is provided with a combustion air filter, a combustion air fan, a first pressure gauge and a first thermometer in sequence.
[0011] In some optional implementations, the combustion air branch pipe is sequentially provided with an automatic combustion air regulating valve, a combustion air orifice plate, a combustion air manual valve, and a first pressure tap.
[0012] In some alternative implementations, each gas delivery pipe is connected to a main gas pipe via a gas branch pipe. The main gas pipe is equipped with a blind valve, a manual shut-off valve, a gas filter, an automatic shut-off valve, a pressure regulator, a second pressure gauge, a second thermometer, and a gas flow orifice plate in sequence.
[0013] In some alternative implementations, the gas branch pipe is provided with a gas branch pipe shut-off valve, a gas branch pipe regulating valve, and a second pressure tap in sequence.
[0014] In some alternative implementations, the ignition burner and the detection burner are respectively connected to the main combustion air pipe via burner combustion air branch pipes equipped with burner shut-off valves and third pressure taps.
[0015] In some alternative implementations, the ignition burner and the detection burner are respectively connected to the burner gas main pipe via burner gas branch pipes. The burner gas main pipe is connected to the gas main pipe between the gas filter and the automatic shut-off valve. The burner gas branch pipes are sequentially equipped with a burner manual valve, a burner orifice plate, a burner gas shut-off valve and a fourth pressure tap. The burner gas main pipes are sequentially equipped with a burner automatic shut-off valve and a burner pressure regulating valve.
[0016] The beneficial effects of this application are as follows: The inertial diffusion type gas infrared burner provided by this application includes a burner body, which includes a porous medium mounting plate with a mounting groove on the top, a porous medium shell connected around the porous medium mounting plate, and a base plate connected to the bottom of the porous medium shell. A porous medium layer is fixedly provided in the mounting groove. The top of the base plate is provided with a plurality of combustion air chambers arranged at intervals along the length direction of the porous medium mounting plate. Above each combustion air chamber are a plurality of gas chambers arranged at intervals along the length direction of the porous medium mounting plate. The top of each combustion air chamber is connected to the bottom of at least one gas chamber through a connecting pipe. The bottom wall of the porous medium mounting plate is provided with a plurality of mixer nozzles connected to the bottom wall of the mounting groove. The top of each gas chamber is connected to the bottom of the plurality of mixer nozzles through a mixed gas delivery pipe. The bottom of each combustion air chamber is connected to a combustion air delivery pipe, and the bottom of each gas chamber is connected to a gas delivery pipe. The porous medium shell is respectively connected to an ignition burner and a detection burner arranged opposite to each other and located above both ends of the porous medium mounting plate. The inertial diffusion type gas infrared burner and combustion device provided in this application ignite by setting an ignition burner above one end of a porous medium mounting plate, and detect whether the ignition is successful by using a detection burner set above the other end of the porous medium mounting plate. This allows operators to conveniently check the success or failure of flame ignition in a timely manner. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the structure of the inertial diffusion type gas infrared combustion device provided in the embodiments of this application;
[0019] Figure 2 A partial cross-sectional view of the burner body along the longitudinal section in the inertial diffusion type gas infrared combustion device provided in the embodiments of this application;
[0020] Figure 3 This is a partial cross-sectional view of the burner body in the inertial diffusion type gas infrared combustion device provided in the embodiments of this application.
[0021] In the diagram: 100, Porous media mounting plate; 110, Mounting groove; 120, Porous media housing; 130, Base plate; 140, Porous media layer; 150, Combustion air chamber; 151, Air housing; 160, Gas chamber; 161, Gas housing; 170, Connecting pipe; 180, Mixer nozzle; 190, Mixed gas delivery pipe; 200, Combustion air delivery pipe; 210, Gas delivery pipe; 220, Ignition burner; 230, Detection burner; 240, Gas distribution pipe; 250, Gas branch pipe; 260, Combustion air branch pipe; 261, Automatic combustion air regulating valve; 262, Combustion air orifice plate; 263, Combustion air manual valve; 264, First pressure tap; 270, Combustion air main pipe; 271, Combustion air filter; 272, Combustion air fan; 27 3. First pressure gauge; 274. First thermometer; 280. Gas branch pipe; 281. Gas branch pipe shut-off valve; 282. Gas branch pipe regulating valve; 283. Second pressure tap; 290. Gas main pipe; 291. Blind flange valve; 292. Manual shut-off valve; 293. Gas filter; 294. Automatic shut-off valve; 295. Pressure regulator; 296. Second pressure gauge; 297. Second thermometer; 298. Gas flow orifice plate; 300. Burner combustion air branch pipe; 310. Burner shut-off valve; 320. Third pressure tap; 330. Burner gas branch pipe; 331. Burner manual valve; 332. Burner orifice plate; 333. Burner gas shut-off valve; 334. Fourth pressure tap; 340. Burner gas main pipe; 341. Burner automatic shut-off valve; 342. Burner pressure regulator. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0029] The features and performance of the inertial diffusion type gas infrared combustion device of this application will be further described in detail below with reference to embodiments.
[0030] like Figure 1 , Figure 2 and Figure 3As shown in the figure, this application provides an inertial diffusion type gas infrared combustion device, which includes three inertial diffusion type gas infrared burners, three combustion air branch pipes 260, a combustion air main pipe 270 connected to the three combustion air branch pipes 260, three gas branch pipes 280, a gas main pipe 290 connected to the three gas branch pipes 280, three burner combustion air branch pipes 300, and three burner gas branch pipes 330. The three combustion air branch pipes 260 and the three gas branch pipes 280 are respectively connected to the three inertial diffusion type gas infrared burners, the three burner combustion air branch pipes 300 and the three burner gas branch pipes 330 are respectively connected to the three inertial diffusion type gas infrared burners, the three burner combustion air branch pipes 300 are respectively connected to the combustion air main pipe 270, and the three burner gas branch pipes 330 are respectively connected to the gas main pipe 290.
[0031] The inertial diffusion type gas infrared burner includes a burner body, which includes a porous medium mounting plate 100 with a mounting groove 110 on the top. The mounting groove 110 extends to both ends of the porous medium mounting plate 100. The four sides of the porous medium mounting plate 100 are connected to annular porous medium shells 120 by spaced-apart pins. The bottom of the porous medium shells 120 is bolted to a base plate 130 located below the porous medium mounting plate 100. A porous medium layer 140 is fixedly disposed within the mounting groove 110. The top of the base plate 130 has five... Air housings 151 are spaced apart along the length of the porous media mounting plate 100. Each air housing 151 and the base plate 130 enclose a combustion air chamber 150. The combustion air chamber 150 extends along the width of the porous media mounting plate 100. Above each combustion air chamber 150, four gas housings 161 are spaced apart along the length of the porous media mounting plate 100. Each gas housing 161 contains a gas chamber 160 extending along the width of the porous media mounting plate 100. The top of each combustion air chamber 150 is connected to the four corresponding gas chambers 160. The bottom of each gas chamber 160 is connected by a connecting pipe 170. Each gas chamber 160 has thirteen mixed gas delivery pipes 190 arranged at intervals along the width of the porous medium mounting plate 100. Two adjacent mixed gas delivery pipes 190 at the top of each gas chamber 160 are staggered on both sides of the top of the gas chamber 160. The mixed gas delivery pipes 190 are vertically arranged. The bottom wall of the porous medium mounting plate 100 is provided with mixer nozzles 180 that correspond one-to-one with each mixed gas delivery pipe 190. Each mixer nozzle 180 is vertically arranged and its top is connected to the bottom wall of the mounting groove 110. Each combustion chamber... A combustion air supply pipe 200 is connected to the bottom of each gas chamber 150, and a gas supply pipe 210 is connected to the bottom of each gas chamber 160. Every four sequentially arranged gas supply pipes 210 are connected to the top of a horizontally arranged gas distribution pipe 240. A gas branch pipe 250 is connected to the bottom of each gas distribution pipe 240. Ignition burners 220 and detection burners 230 are respectively connected to opposite ends of the porous media housing 120 via nozzle supports. The ignition burners 220 and detection burners 230 are located above the two ends of the porous media mounting plate 100. In this embodiment, the porous media mounting plate 100 is made of alumina polycrystalline mullite.
[0032] Five combustion air supply pipes 200 at the bottom of each burner body are connected to a combustion air branch pipe 260. The combustion air branch pipes 260 of the three burner bodies are all connected to the combustion air main pipe 270. The combustion air main pipe 270 is equipped with a combustion air filter 271, a combustion air fan 272, a first pressure gauge 273 and a first thermometer 274 in sequence. Each combustion air branch pipe 260 is equipped with an automatic combustion air regulating valve 261, a combustion air orifice plate 262, a combustion air manual valve 263 and a first pressure tap 264 in sequence.
[0033] Each burner body has five gas branch pipes 250 at the bottom connected to a gas branch pipe 280. The gas branch pipes 280 of the three burner bodies are connected to the gas main pipe 290. The gas main pipe 290 is equipped with a blind valve 291, a manual shut-off valve 292, a gas filter 293, an automatic shut-off valve 294, a pressure regulator 295, a second pressure gauge 296, a second thermometer 297, and a gas flow orifice plate 298 in sequence. Each gas branch pipe 280 is equipped with a gas branch pipe shut-off valve 281, a gas branch pipe regulating valve 282, and a second pressure tap 283 in sequence.
[0034] Ignition burner 220 and detection burner 230 are connected to main combustion air pipe 270 via burner combustion air branch pipe 300. Burner combustion air branch pipe 300 is equipped with burner shut-off valve 310 and third pressure tap 320 in sequence. Ignition burner 220 and detection burner 230 are connected to main combustion air pipe 340 via burner gas branch pipe 330. Main combustion air pipe 340 is connected to main gas pipe 290 between gas filter 293 and automatic shut-off valve 294. Burner gas branch pipe 330 is equipped with burner manual valve 331, burner orifice plate 332, burner gas shut-off valve 333 and fourth pressure tap 334 in sequence. Burner gas main pipe 340 is equipped with burner automatic shut-off valve 341 and burner pressure regulating valve 342 in sequence.
[0035] The inertial diffusion type infrared combustion device for gas provided in this application provides that, during operation, gas is introduced into each gas chamber 160 via a gas main pipe 290, gas branch pipe 280, gas branch pipe 250, gas distribution pipe 240, and gas delivery pipe 210. Combustion air is introduced into each combustion air chamber 150 via a combustion air main pipe 270, combustion air branch pipe 260, and combustion air delivery pipe 200. The combustion air in the combustion air chamber 150 is then introduced into each gas chamber 160 via a connecting pipe 170 to mix with the gas and form a mixture. The internal mixture 60 is evenly introduced into the mounting groove 110 through the mixed gas delivery pipe 190 and the corresponding mixer nozzle 180, passing through the porous medium layer 140 and being blown out. At this time, the gas is introduced into the ignition burner 220 and the detection burner 230 through the gas main pipe 290, the burner gas main pipe 340, and the burner gas branch pipe 330 and sprayed out. The combustion air is introduced into the ignition burner 220 and the detection burner 230 through the combustion air main pipe 270 and the burner combustion air branch pipe 300 and mixed with the gas before being sprayed out. During ignition, the gas and combustion air sprayed out by the ignition burner 220 are mixed together. The gas-fuel mixture is ignited, and the flame ejected from the ignition burner 220 ignites the gas-fuel mixture blowing through the porous medium layer 140. This causes the flame on the top surface of the porous medium layer 140 to travel from one end of the ignition burner 220 to the other end of the detection burner 230 until the gas-fuel mixture ejected from the detection burner 230 is ignited. At this point, the flame on the top surface of the porous medium layer 140 preheats the porous medium layer 140, generating infrared radiation waves that are uniformly radiated onto the surface of the strip steel or heated object. Thus, the preheating of the porous medium layer 140 and the combustion of the gas-fuel mixture in a very short time generate infrared and visible light radiation. Heating is applied to the surface of the strip steel or the object being heated, avoiding the uneven temperature caused by direct high-temperature flames from conventional open flame combustion. When the strip steel stops heating, only the main gas pipe 290 needs to be cut off. At this time, the combustion air continues to be supplied to blow away the heat stored in the porous medium layer 140 and the porous medium mounting plate 100. Since the porous medium mounting plate 100 is made of polycrystalline alumina mullite, its heat storage capacity is relatively small, which can ensure that the heat storage is reduced as soon as possible without transferring too much heat to the strip steel and the object being heated, thus preventing overheating and other phenomena, effectively improving the quality of the strip steel.
[0036] The beneficial effects of the inertial diffusion type gas infrared burner and combustion device provided in this application embodiment are:
[0037] 1. By using polycrystalline alumina mullite to make a porous media mounting plate 100, the heat storage performance of the porous media mounting plate 100 can be reduced. The long-term operating temperature of polycrystalline alumina mullite is 1600℃, and the density is 0.32t / m³. The low density results in low heat storage per unit volume, reducing the heat storage capacity by 90% compared to the existing alumina heavy material castable. At the same time, by continuing to use combustion air to pass through the porous media layer 140 and the porous media mounting plate 100 when the furnace is shut down, the temperature can be reduced as quickly as possible, avoiding damage to the rubber rollers after the strip stops and restarts in a short period of time.
[0038] Second, by setting an ignition burner 220 and a detection burner 230 at both ends above the porous medium layer 140, the flame is transmitted from one end to the other through the surface of the porous medium layer 140 after the detection burner 230 is ignited. The ignition transmission mechanism of the ignition burner 220 and the detection burner 230 can be used to ensure that the flame transmission is easy to monitor when the porous medium layer 140 structure is long, and avoid the risk of untimely flame transmission or failure in the middle, which may affect the heating.
[0039] Third, by introducing the gas into each gas chamber 160 of the burner body and introducing the combustion air into each combustion air chamber 150 of the burner body before entering the gas chamber 160, the gas and combustion air are mixed in the gas chamber 160 and then evenly introduced into the mounting groove 110 through the mixed gas delivery pipe 190 and the corresponding mixer nozzle 180, passing through the porous medium layer 140 and being blown out and ignited, a semi-diffusion combustion is achieved. This allows for the use of highly flammable gases such as hydrogen as fuel for combustion, without low-load backfire or internal deflagration, and reduces energy consumption.
[0040] In this embodiment, a combustion air branch pipe 260 is provided with a combustion air orifice plate 262, a gas flow orifice plate 298 is provided with a gas main pipe 290, and a burner orifice plate 332 is provided with a burner gas branch pipe 330. The orifice plate on the pipe is used to coaxially connect the two ends of the pipe to the two sides of the orifice plate, so that the fluid in the pipe can be transported through the array of through holes on the orifice plate, thereby controlling the flow and regulating the pressure of the fluid in the pipe.
[0041] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
Claims
1. An inertial diffusion type infrared gas burner, characterized in that, It includes a burner body, which comprises a porous medium mounting plate with a mounting groove on the top, a porous medium shell connected around the porous medium mounting plate, and a base plate connected to the bottom of the porous medium shell. A porous medium layer is fixedly disposed in the mounting groove. The top of the base plate is provided with a plurality of combustion air chambers spaced apart along the length of the porous medium mounting plate. Above each combustion air chamber are a plurality of gas chambers spaced apart along the length of the porous medium mounting plate. The top of each combustion air chamber is connected to the bottom of at least one gas chamber through a connecting pipe. The bottom wall of the porous medium mounting plate is provided with a plurality of mixer nozzles connected to the bottom wall of the mounting groove. The top of each gas chamber is connected to the bottom of the plurality of mixer nozzles through a corresponding mixed gas delivery pipe. The bottom of each combustion air chamber is connected to a combustion air delivery pipe, and the bottom of each gas chamber is connected to a gas delivery pipe. The porous medium shell is respectively connected to an ignition burner and a detection burner arranged opposite to each other and located above both ends of the porous medium mounting plate.
2. The inertial diffusion type infrared gas burner according to claim 1, characterized in that, Each of the gas chambers is connected to a plurality of mixed gas delivery pipes arranged at intervals along the width direction of the porous medium mounting plate. Adjacent mixed gas delivery pipes at the top of each gas chamber are staggered along the length direction of the porous medium mounting plate. Each mixed gas delivery pipe is connected to a corresponding mixer nozzle at its top.
3. The inertial diffusion type infrared gas burner according to claim 2, characterized in that, The bottom of a plurality of gas delivery pipes arranged in sequence is connected to a gas distribution pipe, and the bottom of the gas distribution pipe is connected to a gas branch pipe.
4. The inertial diffusion type gas infrared burner according to claim 1, characterized in that, The porous media mounting plate is made of polycrystalline alumina mullite.
5. An inertial diffusion type infrared combustion device for combustion gases, characterized in that, It includes at least one inertial diffusion type gas infrared burner as described in any one of claims 1 to 4 and a combustion air main pipe, wherein the combustion air supply pipe of each of the inertial diffusion type gas infrared burners is connected to the combustion air main pipe through combustion air branch pipes, and the combustion air main pipe is provided with a combustion air filter, a combustion air fan, a first pressure gauge and a first thermometer in sequence.
6. The inertial diffusion type infrared combustion device for gas according to claim 5, characterized in that, The combustion air branch pipe is sequentially equipped with an automatic combustion air regulating valve, a combustion air orifice plate, a combustion air manual valve, and a first pressure tap.
7. The inertial diffusion type infrared combustion device for gas according to claim 5, characterized in that, Each of the gas transmission pipes is connected to a main gas pipe via a gas branch pipe. The main gas pipe is equipped with a blind valve, a manual shut-off valve, a gas filter, an automatic shut-off valve, a pressure regulator, a second pressure gauge, a second thermometer, and a gas flow orifice plate in sequence.
8. The inertial diffusion type infrared combustion device for gas according to claim 7, characterized in that, The gas branch pipe is sequentially equipped with a gas branch pipe shut-off valve, a gas branch pipe regulating valve, and a second pressure tap.
9. The inertial diffusion type infrared combustion device for gas according to claim 7, characterized in that, The ignition burner and the detection burner are respectively connected to the main combustion air pipe through a burner combustion air branch pipe equipped with a burner shut-off valve and a third pressure tap.
10. The inertial diffusion type infrared combustion device for gas according to claim 9, characterized in that, The ignition burner and the detection burner are respectively connected to the burner gas main pipe through burner gas branch pipes. The burner gas main pipe is connected to the gas main pipe between the gas filter and the automatic shut-off valve. The burner gas branch pipe is provided with a burner manual valve, a burner orifice plate, a burner gas shut-off valve and a fourth pressure tap in sequence. The burner gas main pipe is provided with a burner automatic shut-off valve and a burner pressure regulating valve in sequence.