An ejector-type gas torch for commuting

Abstract

This utility model discloses an ejector-type gas ignition gun, including a housing; a connecting pipe fixedly passing through the bottom of the housing, with a valve rotatably passing through the outside of the connecting pipe. This application employs the ejector principle, using compressed air as the combustion medium. Utilizing the Venturi ejector principle, compressed air is used as the ejector working fluid to force-mix low-pressure blast furnace gas, forming a mixed combustible gas at a certain pressure. This mixture is then injected into the furnace for combustion, forming a high-pressure flame with good rigidity. Through a simplified mechanical linkage design, simply pressing the circular plate mixes the compressed air and gas. The mixed gas and compressed air are then discharged into the combustion chamber via a pressure regulator, improving the ease of operation for the operator.

Description

Technical Field

[0001] This utility model relates to the field of gas gun technology, specifically an ejector-type gas gun for expediting travel. Background Technology

[0002] A gas torch is a device that uses gas or other fuels to inject flames through a nozzle for heating, welding, or special processing. Its core function is to mix gas and air and then inject a high-temperature flame; it is widely used in industrial processing, food processing, and other fields.

[0003] A patent search revealed a device, publication number "CN216384182U," titled "A Gas Gun." This published document describes a gas gun using conventional combustion technology, typically employed in slightly positive or negative pressure combustion chambers. In existing dual-furnace rotary lime kilns used in steel plants, flue gas is discharged through a single flue, on which a direct-fired burner is installed. Because the dual-furnace exhaust process involves periodic switching, the flue pressure suddenly increases (generally ≥1.7 kPa) during this switching period, causing a lack of combustion air in the combustion system, flame extinguishing due to oxygen deficiency, and ultimately, ignition failure. Therefore, this invention designs an ejector-type gas gun to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide an ejector-type gas gun for expediting travel, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ejector-type gas blasting gun, comprising a housing; a connecting pipe fixedly passing through the bottom of the housing, with a valve rotatably passing through the outside of the connecting pipe; an inner liner fixed inside the housing; an exhaust port integrally disposed on the left side of the top end inside the inner liner; a connector fixedly disposed on the upper left side inside the housing, with a sleeve fixedly fitted on the left side of the connector, and a one-way valve fixedly disposed inside the connector; a drive assembly assembled inside the housing, which can connect or disconnect the exhaust port from the connector; and a feeding assembly assembled on the top of the sleeve, which can mix the gas and air.

[0006] Preferably, the drive assembly includes a sealing ring slidably disposed inside the housing, and the sealing ring is slidably sleeved on the outside of the inner liner; a slide rod fixed at the four corners of the top of the sealing ring, and the slide rod slidably passes through the housing; a circular plate fixed at the top of the slide rod, and a first spring sleeved on the outside of the slide rod.

[0007] Preferably, a clearance hole is integrally provided on the right side of the bottom inside the housing. The clearance hole is a through hole, and a baffle is fixed inside the clearance hole.

[0008] Preferably, the feeding assembly includes a feeding pipe fixedly extending through the top of the sleeve, and a connecting rod slidably connected inside the feeding pipe; a first sealing block fixedly disposed at the bottom of the connecting rod; and a second sealing block fixedly disposed at the middle of the outer side of the connecting rod.

[0009] Preferably, the second sealing block has a discharge hole integrally provided on both the left and right sides inside, the discharge hole is a through hole, and a check valve is fixed inside the discharge hole.

[0010] Preferably, a second spring is sleeved on the outside of the connecting rod, one end of the second spring is fixedly connected to the feed pipe, and the other end of the second spring is fixedly connected to the connecting rod.

[0011] Preferably, the first sealing block has reflux holes integrally provided on both the left and right sides inside, and a check valve is fixed inside the reflux holes.

[0012] Preferably, the feed pipe is provided with a flow guiding component, which can discharge the mixed gas and air into the combustion chamber. The flow guiding component includes an installation head fixed inside the left side of the feed pipe; a flow guiding pipe fixedly sleeved outside the left side of the installation head; and a pressure regulator fixed outside the left side of the flow guiding pipe.

[0013] Preferably, the diameters of the left and right sides inside the guide tube are equal, and the diameter of the middle part inside the guide tube is smaller than the diameters of the left and right sides.

[0014] Preferably, the voltage regulator has a number of micro-holes integrated inside, and the micro-holes are through-holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model adopts the ejector principle, uses compressed air as the combustion medium, and uses the Venturi ejector principle. Compressed air is used as the ejector working fluid to introduce low-pressure blast furnace gas for forced mixing, forming a mixed combustible gas at a certain pressure, which is finally injected into the furnace to complete combustion and form a high-pressure flame with good rigidity.

[0017] 2. Through a simplified mechanical linkage design, this utility model allows compressed air and gas to be mixed simply by pressing the circular plate. The mixed gas and compressed air are then discharged into the combustion chamber via a pressure stabilizer. Thus, the device in this application improves the ease of operation for workers. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front perspective perspective view of an ejector-type gas torch for expediting travel according to this utility model;

[0020] Figure 2 This is a three-dimensional view of the interior of the casing;

[0021] Figure 3 This is a three-dimensional view of the interior of the shell;

[0022] Figure 4 An exploded three-dimensional view of the shell, inner liner, and sealing ring.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Shell, 2-Connecting pipe, 3-Valve, 4-Inner liner, 5-Exhaust port, 6-Connector, 7-Sleeve, 8-One-way valve, 9-Drive assembly, 10-Feeding assembly, 901-Sealing ring, 902-Slide rod, 903-Circular plate, 904-First spring, 11-Displacement hole, 12-Baffle, 1001-Feeding pipe, 1002-Connecting rod, 1003-First sealing block, 1004-Second sealing block, 13-Discharge hole, 14-Stop valve, 15-Second spring, 16-Return hole, 17-Check valve, 18-Mounting head, 19-Guide pipe, 20-Voltage regulator, 21-Micro hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0026] A preferred embodiment of the ejector-type gas-powered gas gun for expedited travel provided by this utility model is, for example... Figures 1 to 4As shown: A gas ejector-type gas gun for road use includes a housing 1; a connecting pipe 2 fixedly passing through the bottom of the housing 1, with a valve 3 rotatably passing through the outside of the connecting pipe 2; an inner liner 4 fixed inside the housing 1; an exhaust port 5 integrally disposed on the left side of the top end inside the inner liner 4; a connector 6 fixedly disposed on the upper left side inside the housing 1, with a sleeve 7 fixedly fitted on the left side of the connector 6, and a one-way valve 8 fixedly disposed inside the connector 6; and a drive assembly 9 assembled inside the housing 1, which can connect or disconnect the exhaust port 5 from the connector 6.

[0027] The drive assembly 9 includes a sealing ring 901 slidably disposed inside the housing 1 and slidably sleeved on the outside of the inner liner 4; a slide rod 902 fixed at the four corners of the top of the sealing ring 901 and slidingly passing through the housing 1; a circular plate 903 fixed at the top of the slide rod 902 and a first spring 904 sleeved on the outside of the slide rod 902; and a clearance hole 11 integrally provided on the right side of the bottom inside the housing 1. The clearance hole 11 is a through hole and a baffle 12 is fixed inside the clearance hole 11.

[0028] It should be noted that existing gas ignition guns, in actual use, cause a lack of combustion air in the combustion system, resulting in flame extinguishing due to lack of oxygen and ignition failure.

[0029] In this embodiment, the operator first connects the connecting pipe 2 to an external device containing compressed air, and then opens the valve 3. At this time, the compressed air is discharged into the inner liner 4 through the connecting pipe 2, and the compressed air is stored in the inner liner 4 in a controlled manner. Then, the valve 3 is closed, and the operator presses the circular plate 903 by hand. The circular plate 903 drives the sliding rod 902 and the sealing ring 901 to move downward along the direction of the housing 1, and the first spring 904 is deformed. At this time, the sealing ring 901, the exhaust hole 5, and the connector 6 are misaligned. The compressed air inside the inner liner 4 is discharged into the sleeve 7 through the overlapping exhaust hole 5 and connector 6. The operator then releases the circular plate 903 by hand. Through the rebound force of the first spring 904, the sealing ring 901 is reset, that is, the sealing ring 901 disconnects the exhaust hole 5 from the connector 6. The clearance hole 11 ensures the normal displacement of the sealing ring 901 along the longitudinal direction inside the housing 1. The baffle 12 can prevent external gas from entering the housing 1 through the clearance hole 11. The one-way valve 8 prevents gas inside the sleeve 7 from flowing back into the connector 6.

[0030] In a further preferred embodiment of this utility model, the feeding assembly 10 at the top of the sleeve 7 can mix gas and air. The feeding assembly 10 includes a feeding pipe 1001 fixedly penetrating the top of the sleeve 7, and a connecting rod 1002 slidably connected inside the feeding pipe 1001; a first sealing block 1003 fixedly disposed at the bottom of the connecting rod 1002; and a second sealing block 1004 fixedly sleeved on the middle of the outside of the connecting rod 1002. The second sealing block 1004 has discharge holes 13 integrally provided on both the left and right sides inside, and the discharge holes 13 are through holes. A check valve 14 is fixedly disposed inside the discharge holes 13. A second spring 15 is sleeved on the outside of the connecting rod 1002. One end of the second spring 15 is fixedly connected to the feeding pipe 1001, and the other end of the second spring 15 is fixedly connected to the connecting rod 1002. A return hole 16 is integrally provided on both the left and right sides inside the first sealing block 1003, and a check valve 17 is fixedly disposed inside the return hole 16.

[0031] In this embodiment, the feed pipe 1001 is connected to an external device containing gas. When compressed air enters the sleeve 7, the compressed air rapidly depressurizes and expands due to high pressure, quickly creating a negative pressure zone around it. At this time, a negative pressure is formed inside the sleeve 7, and this negative pressure exerts an attraction on the first sealing block 1003, causing the first sealing block 1003 to drive the connecting rod 1002 and the second sealing block 1004 to move downwards along the feed pipe 1001. At this time, the top surface of the first sealing block 1003 is lower than the top surface inside the sleeve 7, thereby allowing the gas to be discharged into the sleeve 7 through the discharge hole 13. Simultaneously, the second spring 15... The compressed air and coal gas are mixed in the above manner. When the suction force of the negative pressure is eliminated, the first sealing block 1003, the second sealing block 1004 and the connecting rod 1002 are reset. The first sealing block 1003 blocks the connection area between the sleeve 7 and the feed pipe 1001. The mixed compressed air and coal gas inside the sleeve 7 are discharged from the return hole 16 into the position between the first sealing block 1003 and the second sealing block 1004. The stop valve 14 can prevent the mixed compressed air and coal gas from being discharged into the upper part of the feed pipe 1001. The check valve 17 can prevent the mixed compressed air and coal gas from flowing back into the sleeve 7. Example 2

[0032] Based on Embodiment 1, a preferred embodiment of the ejector-type gas-powered gas gun provided by this utility model is, for example... Figures 1 to 4As shown: The feed pipe 1001 is equipped with a flow guiding component, which can discharge the mixed gas and air into the combustion chamber. The flow guiding component includes an installation head 18 fixed inside the left side of the feed pipe 1001; a flow guiding pipe 19 fixedly sleeved outside the left side of the installation head 18; and a voltage regulator 20 fixed outside the left side of the flow guiding pipe 19. The diameters of the left and right sides inside the flow guiding pipe 19 are equal, and the diameter of the middle part inside the flow guiding pipe 19 is smaller than the diameters of the left and right sides of the flow guiding pipe 19. The voltage regulator 20 is integrally provided with a number of micro holes 21, which are through holes.

[0033] In this embodiment, when the second sealing block 1004 moves downward, it seals the right end of the mounting head 18. After the second sealing block 1004 is reset, the feed pipe 1001 is connected to the mounting head 18. At this time, the mixed compressed air and gas are compressed by the auxiliary compression of the guide pipe 19, which improves the mixing effect of the compressed air and gas. Then, the mixture is discharged into the combustion chamber through the micro-hole 21 in the pressure stabilizer 20. The micro-hole 21 can not only stabilize the flame combustion, but also prevent backfire.

[0034] In summary, this application adopts the ejector principle, uses compressed air as the combustion medium, and uses the Venturi ejector principle. Compressed air is used as the ejector working fluid to introduce low-pressure blast furnace gas for forced mixing, forming a mixed combustible gas at a certain pressure, which is finally injected into the furnace to complete combustion and form a high-pressure flame with good rigidity.

Claims

1. An ejector trail gas gun characterized in that, include: Shell (1); A connecting pipe (2) is fixedly inserted through the bottom of the housing (1), and a valve (3) is rotatably inserted through the outside of the connecting pipe (2); The inner liner (4) is fixed inside the shell (1); An exhaust vent (5) is integrally set on the left side of the top of the inner liner (4); A connector (6) is fixedly installed inside the upper left side of the housing (1), and a sleeve (7) is fixedly fitted on the left side outside the connector (6). A one-way valve (8) is fixedly installed inside the connector (6). The drive assembly (9) assembled inside the housing (1) can connect or disconnect the exhaust port (5) from the connector (6); The feeding assembly (10) mounted on the top of the sleeve (7) can mix gas and air.

2. The gas gun according to claim 1, wherein: The driving component (9) includes: A sealing ring (901) is slidably disposed inside the housing (1), and the sealing ring (901) is slidably sleeved on the outside of the inner liner (4); Slide rods (902) are fixed at the four corners of the top of the sealing ring (901), and slide rods (902) slide through the housing (1). A circular plate (903) is fixed to the top of the slide bar (902), and a first spring (904) is sleeved on the outside of the slide bar (902).

3. The gas gun according to claim 1, wherein: The housing (1) has an integrally formed relief hole (11) on the right side of the bottom inside. The relief hole (11) is a through hole, and a baffle (12) is fixed inside the relief hole (11).

4. The gas gun according to claim 1, wherein: The feeding assembly (10) includes: A feed pipe (1001) is fixedly inserted through the top of the sleeve (7), and a connecting rod (1002) is slidably connected inside the feed pipe (1001). A first sealing block (1003) is fixed at the bottom of the connecting rod (1002); A second sealing block (1004) is fixedly sleeved on the middle of the outside of the connecting rod (1002).

5. The ejector-type gas nozzle for expediting travel according to claim 4, characterized in that: The second sealing block (1004) has a discharge hole (13) integrally provided on the left and right sides inside. The discharge hole (13) is a through hole, and a stop valve (14) is fixed inside the discharge hole (13).

6. The gas gun according to claim 4, wherein: The connecting rod (1002) is fitted with a second spring (15), one end of which is fixedly connected to the feed pipe (1001), and the other end of which is fixedly connected to the connecting rod (1002).

7. The gas gun according to claim 4, wherein: The first sealing block (1003) has a reflux hole (16) integrally provided on the left and right sides inside, and a check valve (17) is fixedly provided inside the reflux hole (16).

8. The gas gun according to claim 4, wherein: The feed pipe (1001) is internally equipped with a flow guiding component, which can discharge the mixed gas and air into the combustion chamber. The flow guiding component includes: Mounting head (18) fixed inside the left side of the feed pipe (1001); The guide tube (19) is fixedly sleeved on the left side outside the mounting head (18); A voltage regulator (20) is fixed on the left side outside the flow guide (19).

9. The gas gun according to claim 8, wherein: The diameters of the left and right sides inside the guide tube (19) are equal, and the diameter of the middle part inside the guide tube (19) is smaller than the diameters of the left and right sides inside the guide tube (19).

10. The gas gun of claim 8, wherein: The voltage stabilizer (20) is integrally provided with a plurality of micro holes (21) inside, and the micro holes (21) are through hole design.

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