A gas mixing system suitable for gas generators

Abstract

The present invention relates to the field of gas mixing technology for gas generators, and discloses a gas mixing system suitable for gas generators, including a mixing mechanism, the mixing mechanism including a mixing shell, a mixing outlet, an air inlet, a gas inlet and a flow guide component, the mixing shell is provided with a flow guide component inside, one end of the mixing shell is provided with a mixing outlet, the middle of the other end of the mixing shell is provided with an air inlet, the mixing shells on opposite sides of the air inlet are provided with gas inlets, the mixing outlet is connected to a mixing pipeline through a flange, and the end of the mixing pipeline away from the mixing outlet is connected to the gas internal combustion engine intake end of the gas generator. The present invention is provided with a series of structures, the gas inlet intake in two directions and the air inlet intake form a circulation mixing impact, dispersion and flow guide make the gas and air circulation mixing more fully and evenly, the circulation interlayer is transferred to the mixed gas in the mixing shell through the heat conductive layer, the mixed gas is heated up, and the noise of gas mixing of the gas generator is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gas mixing of gas generators, and in particular to a gas mixing system suitable for gas generators. Background Art

[0002] Gas generator sets convert the chemical energy of gas into electrical energy through the steps of gas supply, fuel mixing and intake, combustion process, mechanical energy conversion and power generation output. Gas generator sets obtain gas from gas supply systems such as natural gas pipelines or gas storage tanks. These gases are processed by gas filters and pressure regulating valves to ensure the purity and pressure of the gas. The gas is mixed with air to form a combustible mixture. The intake process usually uses a turbocharger to compress the air to increase the intake density and thus improve the combustion efficiency. The combustible mixture is injected into the cylinder and ignited by spark ignition under the action of the ignition system. The combustion produces high-temperature and high-pressure gas. These gases drive the piston movement and convert chemical energy into mechanical energy. The piston movement of the internal combustion engine converts linear motion into rotational motion through the rotation of the connecting rod and the crankshaft. The crankshaft drives the generator to rotate. The magnetic fields between the rotor and the stator in the generator interact to convert mechanical energy into electrical energy.

[0003] At present, during the process of mixing gas and air in gas generators, the gas and air intake directions are consistent, and the gas and air flow directions in the mixer are the same and single, resulting in poor mixing of the gas and air. In addition, during the intake circulation process of the gas and air mixture, the intake circulation impact contacts the inner wall, causing loud gas mixing noise. Summary of the invention

[0004] The object of the present invention is to provide a gas mixing system suitable for a gas generator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gas mixing system suitable for a gas generator, comprising a mixing mechanism, the mixing mechanism comprising a mixing shell, a mixing outlet, an air inlet, a gas inlet and a flow guide component, the flow guide component is arranged inside the mixing shell, one end of the mixing shell is provided with a mixing outlet, the middle of the other end of the mixing shell is provided with an air inlet, the mixing shells on both sides of the air inlet are provided with gas inlets, the mixing outlet is connected to a mixing pipeline through a flange, one end of the mixing pipeline away from the mixing outlet is connected to an intake end of a gas internal combustion engine of the gas generator, the air inlet is connected to an air pipeline through a flange The output end of the turbocharger is connected, the gas inlet is connected to one end of the bifurcated pipe through a flange, the end of the bifurcated pipe away from the gas inlet is connected to the gas pipeline, the end of the air pipeline away from the air inlet is connected to the output end of the air filter through a flange, the input end of the air filter is connected to the output end of the turbocharger through the air pipeline, the input end of the turbocharger is connected to the outlet of the high-pressure air tank through the air pipeline, the end of the gas pipeline away from the bifurcated pipe is connected to the output end of the gas filter through a flange, the input end of the gas filter is connected to the outlet of the high-pressure gas tank through the gas pipeline, and the air pipeline and the gas pipeline are both provided with regulating mechanisms.

[0006] Preferably, the guide assembly includes an air inlet guide plate, an air outlet guide plate, a dispersion guide plate and a side guide plate. An air inlet guide plate is provided inside the air inlet away from one end of the mixing shell, an air outlet guide plate is provided inside the mixing outlet close to one end of the mixing shell, a plurality of dispersion guide plates are provided in the middle of the mixing shell, and a plurality of side guide plates are provided on the inner wall of the mixing shell. The windward surfaces of the air inlet guide plate, the air outlet guide plate, the dispersion guide plate and the side guide plate are all arranged with an arc surface structure.

[0007] Preferably, the mixing shell includes an anti-deformation shell, a circulation interlayer, a heat-conducting layer, a noise reduction layer, a circulation outlet and a circulation inlet. An anti-deformation shell is integrally provided between the mixing outlet and the air inlet. A circulation interlayer is provided inside the anti-deformation shell. A heat-conducting layer is provided on the anti-deformation shell on the inner side of the circulation interlayer. A noise reduction layer is provided on the anti-deformation shell on the outer side of the circulation interlayer. A circulation outlet is provided at one end of the circulation interlayer close to the air inlet, and a circulation inlet is provided at one end of the circulation interlayer close to the mixing outlet. Both the circulation outlet and the circulation inlet are sealed and penetrate the anti-deformation shell and the noise reduction layer to be connected to the flue gas pipeline.

[0008] Preferably, a spiral air guide plate is provided inside the circulation interlayer, and the spiral air guide plate divides the interior of the circulation interlayer to form a spiral circulation channel connected to the circulation outlet and the circulation inlet, and the spiral air guide plate is made of high-strength stainless steel plate.

[0009] Preferably, the two opposite ends of the mixing shell are arranged in a conical structure, and the gas inlets are provided with two, and the two gas inlets are symmetrically arranged on the mixing shell on the opposite sides of the air inlet, and the air inlet direction of the two gas inlets converges with the air inlet direction on the windward direction of the dispersion guide plate.

[0010] Preferably, two bifurcated pipes are provided, and the two bifurcated pipes are connected to the gas pipeline and are integrally arranged, and the two bifurcated pipes and the gas pipeline are arranged in a Y-shaped structure.

[0011] Preferably, the mounting ports at opposite ends of the air filter are installed on the air pipeline through flanges, and the mounting ports at opposite ends of the gas filter are installed on the gas pipeline through flanges, and sealing gaskets are provided on the flanges, and filter cores are provided inside the air filter and the gas filter.

[0012] Preferably, the regulating mechanism includes a No. 1 speed regulating valve, a No. 1 flow meter, a No. 2 speed regulating valve and a No. 2 flow meter. A No. 1 speed regulating valve and a No. 1 flow meter are provided on the air pipeline between the turbocharger and the high-pressure air tank, and a No. 2 speed regulating valve and a No. 2 flow meter are provided on the gas pipeline between the gas filter and the high-pressure gas tank.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention is applicable to a gas mixing system of a gas generator. The air and gas of the mixed gas for the gas generator are mixed by means of an air pipeline and a gas pipeline arranged on a mixing mechanism, an air filter, a turbocharger, a No. 1 speed regulating valve, a No. 1 flow meter and a high-pressure air tank on the air pipeline, and a gas filter, a No. 2 speed regulating valve, a No. 2 flow meter and a high-pressure gas tank on the gas pipeline, so as to ensure the cleanliness of the mixed gas and control the mixed air intake amount. The mixing shell adopts two symmetrical gas inlets on two sides of the air inlet for air intake. The two gas inlets correspond to the gas pipeline and the bifurcated pipe of the Y-shaped structure. Combined with the dispersion guide plate and the side guide plate arranged inside the mixing shell, the air intakes of the two gas inlets and the air inlet are merged in front of the dispersion guide plate facing the wind. The gas inlet intakes in two directions form a circulation mixing impact with the air inlet intakes, and are dispersed by the dispersion guide plate and guided by the side guide plate for many times during circulation in the mixing shell, so that the gas and air are circulated and mixed more fully and evenly in the mixing shell.

[0015] The present invention is suitable for a gas mixing system of a gas generator. The anti-deformation shell, the circulation interlayer, the heat-conducting layer and the noise-reducing layer are arranged on the mixing shell. The circulation interlayer cooperates with the circulation outlet, the circulation inlet and the spiral air guide plate to guide the high-temperature exhaust gas and smoke of the gas generator into the circulation interlayer. The high-temperature exhaust gas and smoke are spirally circulated along the spiral circulation channel. The heat of the high-temperature exhaust gas and smoke is transferred to the mixed gas in the mixing shell through the heat-conducting layer, and the mixed gas is heated up, which is energy-saving and environmentally friendly. At the same time, the circulation interlayer plays a buffering role. The air inlet guide plate arranged in the air inlet, the air outlet guide plate and the side guide plate arranged in the mixing outlet reduce the impact strength of the intake air on the inner wall and the impact area through guidance, thereby reducing the generation of gas mixing noise of the gas generator. The noise reduction layer absorbs the generated noise, thereby greatly reducing the noise of gas mixing of the gas generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the air pipeline and the gas pipeline in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the gas pipeline in the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the hybrid housing in the present invention;

[0020] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0021] Figure 6 It is a structural schematic diagram of the air intake guide plate in the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the dispersion guide plate in the present invention.

[0023] In the figure: 1. air pipeline; 2. gas pipeline; 21. bifurcated pipe; 3. mixing mechanism; 31. mixing shell; 311. anti-deformation shell; 312. circulation interlayer; 313. heat conductive layer; 314. noise reduction layer; 315. circulation outlet; 316. circulation inlet; 317. spiral air guide plate; 32. mixing outlet; 33. air inlet; 34. gas inlet; 35. air inlet guide plate; 36. air outlet guide plate; 37. dispersion guide plate; 38. side guide plate; 4. flange; 5. mixing pipeline; 6. air filter; 7. turbocharger; 8. No. 1 speed regulating valve; 9. No. 1 flow meter; 10. high-pressure air tank; 11. gas filter; 12. high-pressure gas tank; 13. No. 2 speed regulating valve; 14. No. 2 flow meter. DETAILED DESCRIPTION

[0024] 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. Based on the embodiments of 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.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] like Figures 1 to 7 As shown, this embodiment is applicable to a gas mixing system of a gas generator, comprising a mixing mechanism 3, the mixing mechanism 3 comprising a mixing housing 31, a mixing outlet 32, an air inlet 33, a gas inlet 34 and a flow guide component, the mixing housing 31 is provided with a flow guide component inside, one end of the mixing housing 31 is provided with a mixing outlet 32, the middle of the other end of the mixing housing 31 is provided with an air inlet 33, the mixing housing 31 on both sides opposite to the air inlet 33 is provided with a gas inlet 34, the mixing outlet 32 ​​is connected to a mixing pipeline 5 through a flange 4, one end of the mixing pipeline 5 away from the mixing outlet 32 ​​is connected to an air intake end of a gas internal combustion engine of a gas generator, the air inlet 33 is connected to an output end of an air pipeline 1 through a flange 4, The gas inlet 34 is connected to one end of the bifurcated pipe 21 through the flange 4, the end of the bifurcated pipe 21 away from the gas inlet 34 is connected to the gas pipeline 2, the end of the air pipeline 1 away from the air inlet 33 is connected to the output end of the air filter 6 through the flange 4, the input end of the air filter 6 is connected to the output end of the turbocharger 7 through the air pipeline 1, the input end of the turbocharger 7 is connected to the outlet of the high-pressure air tank 10 through the air pipeline 1, the end of the gas pipeline 2 away from the bifurcated pipe 21 is connected to the output end of the gas filter 11 through the flange 4, the input end of the gas filter 11 is connected to the outlet of the high-pressure gas tank 12 through the gas pipeline 2, and control mechanisms are provided on both the air pipeline 1 and the gas pipeline 2.

[0027] Specifically, the guide assembly includes an air inlet guide plate 35, an air outlet guide plate 36, a dispersion guide plate 37 and a side guide plate 38. The air inlet 33 is provided with an air inlet guide plate 35 at one end away from the mixing shell 31, and the mixing outlet 32 ​​is provided with an air outlet guide plate 36 at one end close to the mixing shell 31. A plurality of dispersion guide plates 37 are provided in the middle of the mixing shell 31. The dispersion guide plates 37 are designed in a cone structure. The surface area of ​​the dispersion guide plates 37 at the end facing the air inlet 33 is smaller. The central axis of the dispersion guide plates 37 coincides with the central axis of the air inlet 33. The opposite sides of the dispersion guide plates 37 are fixed to the inner wall of the mixing shell 31 by connecting rods. A plurality of side guide plates 38 are provided on the inner wall of the mixing shell 31. The windward surfaces of the air inlet guide plates 35, the air outlet guide plates 36, the dispersion guide plates 37 and the side guide plates 38 are all arranged in an arc-shaped surface structure. The air inlet guide plate 35 in the air inlet 33 is provided for the air inlet The air outlet guide plate 36 guides the mixed gas entering the mixing outlet 32, the dispersion guide plate 37 guides and disperses the airflow in the middle of the mixing shell 31 to form an airflow flowing from the center to the outside, and the side guide plate 38 guides the airflow near the inner wall of the mixing shell 31 to form an airflow flowing from the outside to the center. The mixed gas is dispersed by the dispersion guide plate 37 and guided by the side guide plate 38 many times during its circulation in the mixing shell 31. The guidance and dispersion change the direction of gas flow in the mixing shell 31. The gas circulates in multiple directions in the mixing shell 31 to form a mixture, and the flow path of the gas in the mixing shell 31 is increased, so that the gas and air circulate and mix more fully and evenly in the mixing shell 31. The guidance reduces the impact strength of the intake air on the inner wall of the mixing mechanism 3 and the impact area, that is, the contact between the gas and the inner wall during the gas circulation is reduced by the guidance, thereby reducing the generation of gas mixing noise of the gas generator.

[0028] Furthermore, the mixing housing 31 includes an anti-deformation shell 311, a circulation interlayer 312, a heat-conducting layer 313, a noise-reducing layer 314, a circulation outlet 315, and a circulation inlet 316. The anti-deformation shell 311 is integrally provided between the mixing outlet 32 ​​and the air inlet 33. The interior of the anti-deformation shell 311 is provided with a circulation interlayer 312. The anti-deformation shell 311 on the inner side of the circulation interlayer 312 is provided with a heat-conducting layer 313. The anti-deformation shell 311 on the outer side of the circulation interlayer 312 is provided with a noise-reducing layer 314. The circulation interlayer 312 is provided with a circulation outlet 315 at one end thereof close to the air inlet 33. The circulation interlayer 312 is provided with a circulation inlet 316 at one end thereof close to the mixing outlet 32. The circulation outlet 315 and the circulation inlet 316 are both sealed and penetrate the anti-deformation shell 311 and the noise-reducing layer. 314 is connected to the flue gas pipeline, the flow outlet 315 is connected to the existing flue gas treatment equipment, such as the flue gas spray purification tower, through the flue gas pipeline, the flow inlet 316 is connected to the high-temperature exhaust gas outlet of the gas generator and the gas internal combustion engine through the flue gas pipeline, and the high-temperature exhaust gas of the gas generator and the gas internal combustion engine is introduced into the flow interlayer 312 through the flow inlet 316, and the high-temperature exhaust gas flows spirally along the spiral flow channel of the spiral air guide plate 317. The spiral flow direction of the high-temperature exhaust gas in the spiral flow channel is opposite to the flow direction of the mixed gas in the mixing shell 31. The heat of the high-temperature exhaust gas is transferred to the mixed gas in the mixing shell 31 through the heat conductive layer 313, and the flue gas after heat exchange is discharged from the flow outlet 315, and the flue gas is transported to the flue gas treatment equipment through the flue gas pipeline.

[0029] Furthermore, a spiral air guide plate 317 is provided inside the circulation interlayer 312. The spiral air guide plate 317 divides the interior of the circulation interlayer 312 into a spiral circulation channel connected to the circulation outlet 315 and the circulation inlet 316. The spiral circulation channel has a large circulation path and an increased contact surface. The spiral air guide plate 317 is made of high-strength stainless steel plate. The spiral air guide plate 317 is supported in the circulation interlayer 312 to increase the structural strength of the mixing shell 31.

[0030] Furthermore, the two opposite ends of the mixing shell 31 are both arranged in a conical structure, and there are two gas inlets 34. The two gas inlets 34 are symmetrically arranged on the mixing shell 31 on the opposite sides of the air inlet 33. The air intake direction of the two gas inlets 34 converges with the air intake direction of the air inlet 33 in the windward direction of the dispersion guide plate 37, so that there is impact mixing in the gas intake direction and the air intake direction.

[0031] Furthermore, two branch pipes 21 are provided, and the two branch pipes 21 are connected to the gas pipeline 2 and are integrally arranged. The two branch pipes 21 and the gas pipeline 2 are arranged in a Y-shaped structure, and the two branch pipes 21 on the gas pipeline 2 match the two gas inlets 34 on the mixing shell 31.

[0032] Furthermore, the mounting ports at opposite ends of the air filter 6 are mounted on the air pipeline 1 through flanges 4, and the mounting ports at opposite ends of the gas filter 11 are mounted on the gas pipeline 2 through flanges 4. A sealing gasket is provided on the flange 4. A filter core is provided inside the air filter 6 and the gas filter 11. The air filter 6 and the gas filter 11 are easy to disassemble and replace on the pipeline.

[0033] Furthermore, the regulating mechanism includes a No. 1 speed regulating valve 8, a No. 1 flow meter 9, a No. 2 speed regulating valve 13 and a No. 2 flow meter 14. A No. 1 speed regulating valve 8 and a No. 1 flow meter 9 are provided on the air pipeline 1 between the turbocharger 7 and the high-pressure air tank 10, and a No. 2 speed regulating valve 13 and a No. 2 flow meter 14 are provided on the gas pipeline 2 between the gas filter 11 and the high-pressure gas tank 12, so as to facilitate the control of the air intake of the air pipeline 1 and the gas pipeline 2.

[0034] The method of using this embodiment is as follows: assemble the air filter 6, the turbocharger 7, the No. 1 speed regulating valve 8, the No. 1 flow meter 9 and the high-pressure air tank 10 through the flange 4 and the air pipeline 1, connect the output end of the air pipeline 1 to the air inlet 33 of the mixing housing 31 through the flange 4, assemble the gas filter 11, the No. 2 speed regulating valve 13, the No. 2 flow meter 14 and the high-pressure gas tank 12 through the flange 4 and the gas pipeline 2, connect the two bifurcated pipes 21 on the gas pipeline 2 to the gas inlets 34 on the opposite sides of the mixing housing 31 through the flange 4, open the No. 1 speed regulating valve 8 and the No. 2 speed regulating valve 13, and the gas in the high-pressure gas tank 12 enters the gas filter 11 through the gas pipeline 2, and the gas filtered by the gas filter 11 is discharged. The gas inlet 34 enters the mixing housing 31 through the gas pipeline 2 and the bifurcated pipe 21. At the same time, the air in the high-pressure air tank 10 is pressurized by the turbocharger 7 and enters the air filter 6 through the air pipeline 1. The air filtered by the air filter 6 enters the mixing housing 31 through the air pipeline 1 and the air inlet 33. The air intake guide plate 35 in the air inlet 33 guides the air intake. Since the mixing housing 31 adopts two symmetrical gas inlets 34 on both sides of the air inlet 33 for air intake, the two gas inlets 34 correspond to the gas pipeline 2 and the bifurcated pipe 21 of the Y-shaped structure. Combined with the dispersed guide plate 37 and the side guide plate 38 arranged inside the mixing housing 31, the air intake of the two gas inlets 34 is consistent with the air inlet The air intake of the gas inlet 33 converges in front of the windward side of the dispersion guide plate 37, and the air intake of the gas inlet 34 in two directions forms a circulation mixing impact with the air intake of the air inlet 33, and is dispersed by the dispersion guide plate 37 and guided by the side guide plate 38 for many times during the circulation in the mixing shell 31. The guidance and dispersion change the direction of the gas flow in the mixing shell 31, and the gas flows in multiple directions in the mixing shell 31 to form a mixture, and the flow path of the gas in the mixing shell 31 is increased, so that the gas and air circulate and mix more fully and evenly in the mixing shell 31. The mixed mixed gas passes through the gas outlet guide plate 36 and is discharged from the mixing outlet 32. The mixed gas enters the gas internal combustion engine of the gas generator through the mixing pipeline 5. The gas outlet guide plate 36 has a certain effect on the gas flow into the mixing outlet 32. The mixed gas is guided, the air intake guide plate 35 arranged in the air inlet 33, the air outlet guide plate 36 arranged in the mixing outlet 32 ​​and the side guide plate 38 arranged in the mixing shell 31 reduce the impact strength and impact area of ​​the intake air on the inner wall of the mixing mechanism 3 through the guidance, that is, the contact between the gas and the inner wall during the gas circulation is reduced through the guidance, and the gas mixing noise of the gas generator is reduced. The noise generated is absorbed by the noise reduction layer 314 on the anti-deformation shell 311, which greatly reduces the gas mixing noise of the gas generator. The high-temperature exhaust gas and smoke of the gas internal combustion engine of the gas generator are introduced into the circulation interlayer 312 through the circulation inlet 316, and the high-temperature exhaust gas and smoke spirally circulate along the spiral circulation channel of the spiral air guide plate 317.The spiral flow direction of the high-temperature exhaust gas in the spiral flow channel is opposite to the flow direction of the mixed gas in the mixing shell 31. The heat of the high-temperature exhaust gas is transferred to the mixed gas in the mixing shell 31 through the heat-conducting layer 313. The flue gas after heat exchange is discharged from the flow outlet 315 and transported to the flue gas treatment equipment through the flue gas pipeline. The mixed gas is heated, which is energy-saving and environmentally friendly.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas mixing system suitable for a gas generator, comprising a mixing mechanism (3), characterized in that: The mixing mechanism (3) comprises a mixing housing (31), a mixing outlet (32), an air inlet (33), a gas inlet (34) and a flow guide component. The mixing housing (31) is provided with a flow guide component inside. One end of the mixing housing (31) is provided with a mixing outlet (32). The middle of the other end of the mixing housing (31) is provided with an air inlet (33). The mixing housing (31) on both sides opposite to the air inlet (33) is provided with a gas inlet (34). The mixing outlet (32) is connected to a mixing pipeline (5) via a flange (4). One end of the mixing pipeline (5) away from the mixing outlet (32) is connected to an air intake end of a gas internal combustion engine of a gas generator. The air inlet (33) is connected to an output end of an air pipeline (1) via a flange (4). The gas inlet (34) is connected to a gas outlet (33) via a flange (4). The end of the fork pipe (21) is connected to the gas inlet (34), the end of the fork pipe (21) away from the gas inlet (34) is connected to the gas pipeline (2), the end of the air pipeline (1) away from the air inlet (33) is connected to the output end of the air filter (6) through the flange (4), the input end of the air filter (6) is connected to the output end of the turbocharger (7) through the air pipeline (1), the input end of the turbocharger (7) is connected to the outlet of the high-pressure air tank (10) through the air pipeline (1), the end of the gas pipeline (2) away from the fork pipe (21) is connected to the output end of the gas filter (11) through the flange (4), the input end of the gas filter (11) is connected to the outlet of the high-pressure gas tank (12) through the gas pipeline (2), and the air pipeline (1) and the gas pipeline (2) are both provided with a control mechanism; The mixing shell (31) comprises an anti-deformation shell (311), a circulation interlayer (312), a heat-conducting layer (313), a noise-reducing layer (314), a circulation outlet (315) and a circulation inlet (316); an anti-deformation shell (311) is integrally provided between the mixing outlet (32) and the air inlet (33); a circulation interlayer (312) is provided inside the anti-deformation shell (311); a heat-conducting layer (313) is provided on the anti-deformation shell (311) inside the circulation interlayer (312); a noise-reducing layer (314) is provided on the anti-deformation shell (311) outside the circulation interlayer (312); a circulation outlet (315) is provided at one end of the circulation interlayer (312) close to the air inlet (33); a circulation inlet (316) is provided at one end of the circulation interlayer (312) close to the mixing outlet (32); and both the circulation outlet (315) and the circulation inlet (316) are sealed and penetrate the anti-deformation shell (311) and the noise-reducing layer (314) to be connected to a smoke pipeline.

2. The gas mixing system for a gas generator according to claim 1, characterized in that: The guide assembly comprises an air inlet guide plate (35), an air outlet guide plate (36), a dispersion guide plate (37) and a side guide plate (38); an air inlet guide plate (35) is provided inside the end of the air inlet (33) away from the mixing housing (31); an air outlet guide plate (36) is provided inside the end of the mixing outlet (32) close to the mixing housing (31); a plurality of dispersion guide plates (37) are provided in the middle of the mixing housing (31); a plurality of side guide plates (38) are provided on the inner wall of the mixing housing (31); and the windward surfaces of the air inlet guide plate (35), the air outlet guide plate (36), the dispersion guide plate (37) and the side guide plate (38) are all arranged in an arc-shaped surface structure.

3. The gas mixing system for a gas generator according to claim 1, characterized in that: A spiral air guide plate (317) is provided inside the circulation interlayer (312), and the spiral air guide plate (317) divides the interior of the circulation interlayer (312) to form a spiral circulation channel that is connected to the circulation outlet (315) and the circulation inlet (316).

4. The gas mixing system for a gas generator according to claim 2, characterized in that: The two opposite ends of the mixing housing (31) are both arranged in a cone-shaped structure, and two gas inlets (34) are provided. The two gas inlets (34) are symmetrically arranged on the mixing housing (31) on opposite sides of the air inlet (33), and the air intake direction of the two gas inlets (34) merges with the air intake direction of the air inlet (33) in the windward direction of the dispersion guide plate (37).

5. The gas mixing system for a gas generator according to claim 1, characterized in that: Two bifurcated pipes (21) are provided, and the two bifurcated pipes (21) are connected to the gas pipeline (2) and are integrally arranged, and the two bifurcated pipes (21) and the gas pipeline (2) are arranged in a Y-shaped structure.

6. The gas mixing system for a gas generator according to claim 1, characterized in that: The mounting ports at opposite ends of the air filter (6) are mounted on the air pipeline (1) via flanges (4), and the mounting ports at opposite ends of the gas filter (11) are mounted on the gas pipeline (2) via flanges (4). The flanges (4) are provided with sealing gaskets. The air filter (6) and the gas filter (11) are both provided with filter cores.

7. The gas mixing system for a gas generator according to claim 1, characterized in that: The control mechanism comprises a No. 1 speed regulating valve (8), a No. 1 flow meter (9), a No. 2 speed regulating valve (13) and a No. 2 flow meter (14); the No. 1 speed regulating valve (8) and the No. 1 flow meter (9) are provided on the air pipeline (1) between the turbocharger (7) and the high-pressure air tank (10); and the No. 2 speed regulating valve (13) and the No. 2 flow meter (14) are provided on the gas pipeline (2) between the gas filter (11) and the high-pressure gas tank (12).

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