Explosion-proof type natural gas burner valve

Abstract

The utility model discloses an explosion-proof type natural gas burner valve which comprises a pipeline, a safety valve mechanism is installed on one side of the pipeline, a pressure relief pipe is installed on the side wall of one side of the safety valve mechanism, and a gas sensor is fixedly connected to the outer surface of one side of the pressure relief pipe. The inner wall of the lower side of the pressure relief pipe is fixedly connected with a filter screen, the lower surface of the pressure relief pipe is symmetrically and fixedly connected with guide rods, the outer surfaces of the guide rods are movably connected with closed pipes, and the guide rods penetrate through the closed pipes. Through the arrangement of a sealing pipe, a pressure relief pipe and a filter screen, the pressure relief pipe can be sealed through the sealing pipe when pressure relief is not conducted through the pressure relief pipe, and therefore the situation that a large amount of dust is accumulated on the inner wall of the pressure relief pipe to cause blockage is avoided; and therefore, the gas is filtered and discharged through the filter screen between the closed pipe and the pressure relief pipe, and the protection performance and practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of burner valves, in particular to an explosion-proof natural gas burner valve. Background Art

[0002] The safety valve is a crucial component of the burner valve system. Its primary function is to relieve gas pressure within the valve piping system, thereby preventing explosions. A safety valve is a special valve whose opening and closing components are normally closed under external forces. When the pressure of the medium within the equipment or pipeline exceeds a specified value, the valve discharges the medium to the outside of the system, preventing the pressure within the pipeline or equipment from exceeding the specified value.

[0003] The pressure relief pipe of the currently common safety valve lacks protection and is in an open state for a long time, allowing dust and debris to easily enter and block the pressure relief pipe, thereby affecting the use of the pressure relief pipe and making it inconvenient to use. Utility Model Content

[0004] In order to overcome the disadvantages of the prior art that the pressure relief pipe has no protective structure and its inner wall is easily blocked by dust and impurities, one of the purposes of the utility model is to provide an explosion-proof natural gas burner valve.

[0005] One of the objectives of the utility model is achieved by the following technical solution: an explosion-proof natural gas burner valve, comprising a pipeline: a safety valve mechanism is installed on one side of the pipeline, a pressure relief pipe is installed on one side wall of the safety valve mechanism, a gas sensor is fixedly connected to the outer surface of one side of the pressure relief pipe, a filter is fixedly connected to the inner wall of the lower side of the pressure relief pipe, a guide rod is symmetrically fixedly connected to the lower surface of the pressure relief pipe, a closed pipe is movably connected to the outer surface of the guide rod, the guide rod passes through the closed pipe, and the closed pipe is movably connected to the outer surface of the filter and the guide rod; a first fixed plate is fixedly connected to the outer surface of the lower side of the pressure relief pipe, a connecting plate is fixedly connected to the side wall of one side of the first fixed plate, a support plate is fixedly connected to the lower surface of the connecting plate, a cross plate is fixedly connected to the side wall of the connecting plate, an induction switch is fixedly connected to one side of the upper surface of the cross plate, a motor is fixedly connected to the upper surface of the motor, a driver is fixedly connected to the upper surface of the motor, a screw is fixedly connected to the output end of the motor, a movable plate is threadedly connected to the outer surface of the screw, and the movable plate is fixedly connected to the closed pipe. The closed pipe can be used to close the pressure relief pipe when the pressure is not released through the pressure relief pipe, thereby preventing a large amount of dust from accumulating on the inner wall of the pressure relief pipe and causing blockage. When exhaust and pressure relief are required, the closed pipe is separated from the pressure relief pipe, and the gas is discharged through the filter between the closed pipe and the pressure relief pipe, thereby improving the protection of the device.

[0006] According to the explosion-proof natural gas burner valve, the driver is electrically connected to the gas sensor, the motor, and the induction switch, making it easy to control the start and stop of the motor.

[0007] According to the explosion-proof natural gas burner valve, the safety valve mechanism includes a valve body, a valve seat fixedly connected to the inner wall of the lower end of the valve body, a valve disc movably connected to the upper surface of the valve seat, a transmission rod movably connected to the upper surface of the valve disc, an adjusting nut rotatably connected to the outer surface of the transmission rod, a gasket fixedly connected to the inner wall of one side of the valve body, a first spring seat fixedly connected to the inner wall of the gasket, a first spring fixedly connected to the upper surface of the first spring seat, and a second spring seat fixedly connected to the other end of the first spring. The purpose of pressure relief is achieved by the up and down movement of the valve disc, thereby ensuring the safe operation of the pipeline and avoiding explosions in the pipeline.

[0008] According to the explosion-proof natural gas burner valve, a wrench is movably connected to the outer surface of the upper side of the transmission rod, which is convenient for regular manual pressure relief to check the performance of the safety valve mechanism.

[0009] According to the explosion-proof natural gas burner valve, a second fixing plate is fixedly connected to a side wall of the valve body close to the wrench, and a limiting mechanism is provided on the upper surface of the second fixing plate, so as to conveniently limit the position of the wrench.

[0010] According to the explosion-proof natural gas burner valve, a through groove is formed on the upper surface of the wrench near the limiting mechanism, and a limiting groove is formed on the inner wall of the through groove, so as to facilitate the use with the limiting mechanism to achieve the purpose of limiting.

[0011] According to the explosion-proof natural gas burner valve, the limiting mechanism includes a pull rod movably connected to one side of the upper surface of a second fixed plate, the pull rod passing through the second fixed plate, the outer surface of the pull rod movably connected to a second spring, the upper surface of the second spring fixedly connected to a pressure plate, the upper surface of the pressure plate rotatably connected to a limiting block, the upper surface of the limiting block movably connected to a stop block, and the upper surface of the wrench near the stop block fixedly connected to a baffle. This can limit the wrench to prevent it from being arbitrarily moved upward and causing misoperation.

[0012] According to the explosion-proof natural gas burner valve, the pull rod passes through the pressure plate and the limit block and is movably connected to the inner wall of the stop block, and the pressure plate and the stop block are fixedly connected. The pull rod can drive the limit block to rotate between the stop block and the pressure plate.

[0013] According to the explosion-proof natural gas burner valve, the size of the stop block matches the size of the stop slot. This facilitates the stop block's rotation to the inner wall of the stop slot to limit the position of the wrench, thereby preventing the wrench from being misoperated by upward movement when manual pressure relief is not required, thereby improving the safety of the device.

[0014] According to the explosion-proof natural gas burner valve, the sizes of the pressure plate and the abutment block are adapted to the size of the through slot, making it easy for a wrench to pass through and abut against the lower surface of the baffle.

[0015] The above scheme has the following beneficial effects:

[0016] 1. By setting up the closed pipe, the pressure relief pipe and the filter, the closed pipe can be used to close the pressure relief pipe when the pressure is not relieved through the pressure relief pipe, thereby avoiding the accumulation of a large amount of dust on the inner wall of the pressure relief pipe to cause blockage. When exhaust and pressure relief are required, the closed pipe is driven to separate from the pressure relief pipe, so that the gas is filtered and discharged through the filter between the closed pipe and the pressure relief pipe, thereby improving the protection and practicality of the device.

[0017] 2. Through the setting of the limiting mechanism, after the manual pressure relief is completed through the wrench, the wrench is returned to its position and the second spring automatically rebounds to drive the stop block, pressure plate and limit block to pass through the through slot, and makes the stop block contact the baffle, and then the pull rod is rotated to drive the limit block to rotate to the inner wall of the limit slot, thereby limiting the wrench to avoid misoperation when the wrench is not in use, thereby improving the device's ability to prevent misoperation.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of an explosion-proof natural gas burner valve of the utility model;

[0021] Figure 2 This is a structural diagram of a safety valve mechanism of an explosion-proof natural gas burner valve of the utility model;

[0022] Figure 3 This is a structural diagram of a screw rod of an explosion-proof natural gas burner valve of the utility model;

[0023] Figure 4 This is a structural diagram of a limit mechanism of an explosion-proof natural gas burner valve of the utility model;

[0024] Figure 5 This utility model is an explosion-proof natural gas burner valve Figure 4 Enlarged structural diagram at point A in the middle.

[0025] Legend:

[0026] 1. Pipeline; 2. Safety valve mechanism; 201. Valve body; 202. Valve seat; 203. Valve disc; 204. Transmission rod; 205. Adjusting nut; 206. Gasket; 207. First spring seat; 208. First spring; 209. Second spring seat; 3. Pressure relief pipe; 4. Gas sensor; 5. Filter; 6. Guide rod; 7. Closing pipe; 8. First fixed plate; 9. Connecting plate; 10. Support plate; 11. Horizontal plate; 12. Induction switch; 13. Motor; 14. Driver; 15. Screw; 16. Moving plate; 17. Wrench; 18. Second fixed plate; 19. Limiting mechanism; 1901. Pull rod; 1902. Second spring; 1903. Pressing plate; 1904. Limiting block; 1905. Retaining block; 1906. Baffle; 20. Through groove; 21. Limiting groove. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0028] Reference Figure 1-5, an explosion-proof natural gas burner valve, comprising a pipeline 1: a safety valve mechanism 2 is installed on one side of the pipeline 1, a pressure relief pipe 3 is installed on one side wall of the safety valve mechanism 2, a gas sensor 4 is fixedly connected to the outer surface of one side of the pressure relief pipe 3, a filter screen 5 is fixedly connected to the inner wall of the lower side of the pressure relief pipe 3, a guide rod 6 is symmetrically fixedly connected to the lower surface of the pressure relief pipe 3, a closing pipe 7 is movably connected to the outer surface of the guide rod 6, the guide rod 6 passes through the closing pipe 7, the closing pipe 7 is movably connected to the outer surface of the filter screen 5 and the guide rod 6, a first fixing plate 8 is fixedly connected to the outer surface of the lower side of the pressure relief pipe 3, the first fixing plate One side wall of 8 is fixedly connected to a connecting plate 9, the lower surface of the connecting plate 9 is fixedly connected to a supporting plate 10, the lower side wall of the connecting plate 9 is fixedly connected to a horizontal plate 11, one side of the upper surface of the horizontal plate 11 is fixedly connected to an induction switch 12, the upper surface of the first fixed plate 8 is fixedly connected to a motor 13, the upper surface of the motor 13 is fixedly connected to a driver 14, the output end of the motor 13 is fixedly connected to a screw 15, the outer surface of the screw 15 is threadedly connected to a movable plate 16, the movable plate 16 is fixedly connected to the closed tube 7, and the driver 14 is electrically connected to the gas sensor 4, the motor 13 and the induction switch 12. When the pressure relief pipe 3 is not used for pressure relief and exhaust, the sealing pipe 7 abuts against the lower surface of the pressure relief pipe 3 to seal the pressure relief pipe 3, thereby preventing dust and impurities from clogging the pressure relief pipe 3 and affecting its exhaust and pressure relief. When exhaust is required, the gas flows into the interior of the pressure relief pipe 3 and is sensed by the gas sensor 4. The gas sensor 4 transmits a signal to the driver 14. The driver 14 drives the motor 13 to start. The motor 13 drives the screw 15 to rotate. The screw 15 drives the movable plate 16 to move downward on its surface, thereby driving the sealing pipe 7 to move downward on the outer surface of the guide rod 6 and expose the filter 5. When the movable plate 16 contacts the sensor switch 12, the sensor switch 12 turns off the motor 13 through the driver 14, so that the gas is filtered and discharged through the filter 5, which is convenient to use. At the same time, after the pressure relief is completed, the gas sensor 4 senses that there is no gas in the pressure relief pipe 3 and transmits a signal to the driver 14 again. The driver 14 drives the motor 13 to rotate in the opposite direction to return the sealing pipe 7 to its original position, thereby improving the safety and practicality of the pressure relief pipe 3 and preventing it from being blocked by impurities and dust.

[0029] The safety valve mechanism 2 includes a valve body 201, the inner wall of the lower end of the valve body 201 is fixedly connected to the valve seat 202, the upper surface of the valve seat 202 is movably connected to the valve disc 203, the upper surface of the valve disc 203 is movably connected to the transmission rod 204, the outer surface of the transmission rod 204 is rotatably connected to the adjusting nut 205, one side of the inner wall of the valve body 201 is fixedly connected to the gasket 206, the inner wall of the gasket 206 is fixedly connected to the first spring seat 207, the upper surface of the first spring seat 207 is fixedly connected to the first spring 208, the other end of the first spring 208 is fixedly connected to the second spring seat 209, and the outer surface of the upper side of the transmission rod 204 is movably connected to the wrench 17. When the pressure inside the pipeline 1 is greater than the set pressure, the gas flows into the safety valve mechanism 2 through the valve seat 202. The gas pushes the valve disc 203 to move upward and pushes the transmission rod 204 to move upward while squeezing the first spring 208, thereby no longer sealing the valve seat 202. The gas flows through the outlet above the valve seat 202 into the pressure relief pipe 3 for exhaust, thereby achieving the purpose of reducing pressure and preventing the pipeline 1 from exploding.

[0030] The side wall of the valve body 201 close to the wrench 17 is fixedly connected to the second fixing plate 18, and the upper surface of the second fixing plate 18 is provided with a limiting mechanism 19. The upper surface of the wrench 17 close to the limiting mechanism 19 is provided with a through groove 20, and the inner wall of the through groove 20 is provided with a limiting groove 21. The limiting mechanism 19 includes a pull rod 1901 movably connected to one side of the upper surface of the second fixing plate 18. The pull rod 1901 passes through the second fixing plate 18. The outer surface of the pull rod 1901 is movably connected to the second spring 1902. The upper surface of the second spring 1902 is fixedly connected to the pressure plate 1903. The pressure plate The upper surface of 1903 is rotatably connected to the limiting block 1904, and the upper surface of the limiting block 1904 is movably connected to the retaining block 1905. The upper surface of the wrench 17 is fixedly connected to a baffle 1906 on the side close to the retaining block 1905. The pull rod 1901 passes through the pressure plate 1903 and the limiting block 1904 and is movably connected to the inner wall of the retaining block 1905. The pressure plate 1903 and the retaining block 1905 are fixedly connected. The size of the limiting block 1904 is adapted to the size of the limiting groove 21, and the sizes of the pressure plate 1903 and the retaining block 1905 are adapted to the size of the through groove 20. The position of the wrench 17 is limited by the limiting mechanism 19. When the wrench 17 needs to be used for manual pressure relief, the pull rod 1901 is rotated to drive the limiting block 1904 to rotate out on the inner wall of the limiting groove 21, and then the pull rod 1901 is pulled to drive the pressure plate 1903, the stop block 1905 and the limiting block 1904 to disengage from the through groove 20 and squeeze the second spring 1902, thereby no longer limiting the wrench 17. After the manual pressure relief is completed, the second spring 1902 automatically rebounds, and the stop block 1905 abuts against the baffle 1906, thereby ensuring that the position of the limiting block 1904 is consistent with the limiting groove 21, and then the pull rod 1901 is rotated to drive the limiting block 1904 to rotate to the inner wall of the limiting groove 21, thereby limiting the wrench 17, avoiding misoperation when the wrench 17 is not in use, thereby improving the device's ability to prevent misoperation.

[0031] Working principle: When exhaust is required, the gas flows into the inside of the pressure relief pipe 3 and is sensed by the gas sensor 4. The gas sensor 4 transmits the signal to the driver 14. The driver 14 drives the motor 13 to start, and the motor 13 drives the screw 15 to rotate. The screw 15 drives the movable plate 16 to move downward on its surface, thereby driving the closed tube 7 to move downward on the outer surface of the guide rod 6 and exposing the filter 5. When the movable plate 16 contacts the sensing switch 12, the sensing switch 12 turns off the motor 13 through the driver 14, so that the gas is filtered and discharged through the filter 5, which is convenient to use. At the same time, after the pressure relief is completed, the gas sensor 4 senses that there is no gas inside the pressure relief pipe 3 and transmits the signal to the driver 14 again. The driver 14 drives the motor 13 to rotate in the opposite direction to return the closed tube 7 to its position, thereby improving the safety and practicality of the pressure relief pipe 3 and preventing it from being blocked by impurities and dust.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An explosion-proof natural gas burner valve, characterized in that: The invention comprises a pipeline (1): a safety valve mechanism (2) is installed on one side of the pipeline (1), a pressure relief pipe (3) is installed on the side wall of one side of the safety valve mechanism (2), a gas sensor (4) is fixedly connected to the outer surface of one side of the pressure relief pipe (3), a filter (5) is fixedly connected to the inner wall of the lower side of the pressure relief pipe (3), a guide rod (6) is symmetrically fixedly connected to the lower surface of the pressure relief pipe (3), a closed pipe (7) is movably connected to the outer surface of the guide rod (6), the guide rod (6) passes through the closed pipe (7), and the closed pipe (7) is movably connected to the outer surfaces of the filter (5) and the guide rod (6); The outer surface of the lower side of the pressure relief pipe (3) is fixedly connected to a first fixed plate (8), a side wall of one side of the first fixed plate (8) is fixedly connected to a connecting plate (9), the lower surface of the connecting plate (9) is fixedly connected to a support plate (10), the side wall of the lower side of the connecting plate (9) is fixedly connected to a transverse plate (11), one side of the upper surface of the transverse plate (11) is fixedly connected to an induction switch (12), the upper surface of the first fixed plate (8) is fixedly connected to a motor (13), the upper surface of the motor (13) is fixedly connected to a driver (14), the output end of the motor (13) is fixedly connected to a screw (15), the outer surface of the screw (15) is threadedly connected to a movable plate (16), and the movable plate (16) is fixedly connected to the closed pipe (7).

2. The explosion-proof natural gas burner valve according to claim 1, characterized in that: The driver (14) is electrically connected to the gas sensor (4), the motor (13) and the induction switch (12).

3. The explosion-proof natural gas burner valve according to claim 1, characterized in that: The safety valve mechanism (2) comprises a valve body (201), the inner wall of the lower end of the valve body (201) is fixedly connected to a valve seat (202), the upper surface of the valve seat (202) is movably connected to a valve flap (203), the upper surface of the valve flap (203) is movably connected to a transmission rod (204), the outer surface of the transmission rod (204) is rotatably connected to an adjusting nut (205), a gasket (206) is fixedly connected to the inner wall of one side of the valve body (201), the inner wall of the gasket (206) is fixedly connected to a first spring seat (207), the upper surface of the first spring seat (207) is fixedly connected to a first spring (208), and the other end of the first spring (208) is fixedly connected to a second spring seat (209).

4. The explosion-proof natural gas burner valve according to claim 3, characterized in that: A wrench (17) is movably connected to the outer surface of the upper side of the transmission rod (204).

5. The explosion-proof natural gas burner valve according to claim 4, characterized in that: A second fixing plate (18) is fixedly connected to a side wall of the valve body (201) close to the wrench (17), and a limiting mechanism (19) is provided on the upper surface of the second fixing plate (18).

6. The explosion-proof natural gas burner valve according to claim 5, characterized in that: A through groove (20) is provided on the upper surface of the wrench (17) on one side close to the limiting mechanism (19), and a limiting groove (21) is provided on the inner wall of the through groove (20).

7. The explosion-proof natural gas burner valve according to claim 6, characterized in that: The limiting mechanism (19) includes a pull rod (1901) movably connected to one side of the upper surface of the second fixed plate (18), the pull rod (1901) passes through the second fixed plate (18), the outer surface of the pull rod (1901) is movably connected to the second spring (1902), the upper surface of the second spring (1902) is fixedly connected to the pressure plate (1903), the upper surface of the pressure plate (1903) is rotatably connected to the limiting block (1904), the upper surface of the limiting block (1904) is movably connected to the stop block (1905), and the upper surface of the wrench (17) is fixedly connected to the side of the stop block (1905).

8. The explosion-proof natural gas burner valve according to claim 7, characterized in that: The pull rod (1901) passes through the pressure plate (1903) and the limit block (1904) and is movably connected to the inner wall of the stop block (1905). The pressure plate (1903) and the stop block (1905) are fixedly connected.

9. The explosion-proof natural gas burner valve according to claim 7, characterized in that: The size of the limiting block (1904) is adapted to the size of the limiting groove (21).

10. The explosion-proof natural gas burner valve according to claim 7, characterized in that: The sizes of the pressing plate (1903) and the stop block (1905) are both adapted to the sizes of the through slot (20).

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