Explosion-proof pressure relief assembly and fuel gas pressure regulating cabinet thereof

Abstract

The utility model relates to the technical field of fixing devices, and discloses an anti-explosion pressure relief assembly and a fuel gas pressure regulating cabinet thereof, the anti-explosion pressure relief assembly comprises a pressure relief pipeline, and two sides of the pressure relief pipeline are connected with exhaust pipelines in a penetrating manner; a pressure gauge; the pressure relief unit comprises a separation blade, a stroke top plate and a compression spring; and the adjusting unit comprises a threaded rod and a stroke top plate. The pressure relief unit is arranged, the blocking piece is pushed to move upwards in the gas pressure increasing process, the exhaust pipelines are connected to the two sides of the pressure relief pipeline in a penetrating mode, when the blocking piece reaches the positions of the exhaust pipelines, gas is exhausted through the exhaust pipelines for pressure relief, and damage to the gas supply pipeline is avoided; and by arranging the adjusting unit, the position of the stroke top plate can be adjusted, so that the pressure needed by the separation blade to rise to the position of the exhaust pipeline is different, the adjusting effect is achieved, and the practicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to an explosion-proof pressure relief component and a gas pressure regulating cabinet thereof. Background Art

[0002] The gas pressure regulating cabinet integrates natural gas filtering, pressure regulation, metering, safety control and other equipment. It has the advantages of small size, easy installation, complete functions, good system coordination, safety and reliability. It is widely used in residential areas, hotels, guesthouses, factories, schools and other units for gas supply.

[0003] The prior art discloses an explosion-proof pressure relief component and structure for a gas pressure regulating cabinet (publication number: CN118257885A). The upper support plate and the lower support plate of the explosion-proof pressure relief component are provided with holes for inserting guide rods. The upper support plate, the lower support plate, and the spring are sleeved on the guide rods. The spring is arranged between the upper support plate and the lower support plate; the explosion-proof pressure relief structure for the gas pressure regulating cabinet includes the explosion-proof pressure relief component and a cabinet top provided with a pressure relief port, and a pressure relief top covering the pressure relief port. The cabinet top is placed on the top of the cabinet body.

[0004] The existing technology provides explosion-proof pressure relief for the gas pressure regulating cabinet body, but does not provide explosion-proof pressure relief for the gas supply pipeline inside it. When the pressure in the gas supply pipeline is too high, the pipeline may overheat and explode, which requires improvement. In addition, the pressure relief pressure set for gas supply pipelines of different diameters is different, and an explosion-proof pressure relief device that is easy to adjust is needed.

[0005] Therefore, those skilled in the art provide an explosion-proof pressure relief assembly and a gas pressure regulating cabinet thereof to solve the problems raised in the above background technology. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention provides an explosion-proof pressure relief assembly and a gas pressure regulating cabinet thereof, which solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A kind of explosion-proof pressure relief assembly, comprising: a pressure relief pipe, which is a hollow cylinder, the bottom end of the pressure relief pipe is hollowed out, and both sides of the pressure relief pipe are connected with exhaust pipes; a pressure gauge, which is arranged on one side of the pressure relief pipe, and the sensor of the pressure gauge is arranged in the pressure relief pipe cavity for monitoring the gas pressure in the pressure relief pipe; a pressure relief unit, which is arranged in the pressure relief pipe cavity, the pressure relief unit includes a baffle, a stroke top plate and a compression spring, and the compression spring is located between the baffle and the stroke top plate; an adjusting unit, which includes a threaded rod and a stroke top plate for adjusting the position of the stroke top plate.

[0009] According to the explosion-proof pressure relief assembly, a plurality of first sealing rings are fixedly connected to the outer wall of the baffle, and the first sealing rings are in contact with the inner wall of the pressure relief pipe.

[0010] According to the explosion-proof pressure relief assembly, a support portion for supporting the baffle is fixedly provided in the cavity of the pressure relief pipe, and the support portion includes a fixed baffle and a lifting rod.

[0011] According to the explosion-proof pressure relief assembly, the fixed baffle is fixedly installed in the pressure relief pipe cavity in a horizontal state, the bottom end of the lifting rod is fixedly installed at the center position of the fixed baffle, the telescopic end of the lifting rod is fixedly connected to the bottom end of the baffle, and the axis line of the lifting rod and the axis line of the baffle are on the same straight line.

[0012] According to the explosion-proof pressure relief assembly, the travel top plate is movably engaged in the pressure relief pipe cavity, a second sealing ring is provided between the travel top plate and the inner wall of the pressure relief pipe, and a mounting ring is fixedly installed on the top of the travel top plate.

[0013] According to the explosion-proof pressure relief assembly, a bearing is movably installed between the threaded rod and the mounting ring, the top end of the threaded rod movably passes through the top end of the pressure relief pipe, the threaded rod and the pressure relief pipe are threadedly connected, and the end of the threaded rod away from the pressure relief pipe is fixedly connected to a handwheel.

[0014] According to the explosion-proof pressure relief assembly, both ends of the compression spring are fixedly connected to the travel top plate and the baffle respectively.

[0015] A gas pressure regulating cabinet comprises a cabinet body, a pressure relief top and the above-mentioned explosion-proof pressure relief assembly. The pressure relief top is arranged on the top of the cabinet body, and the explosion-proof pressure relief assembly is arranged on the gas supply pipe in the cabinet body cavity.

[0016] The utility model provides an explosion-proof pressure relief component and a gas pressure regulating cabinet thereof. It has the following beneficial effects:

[0017] (1) An explosion-proof pressure relief assembly is set on the gas supply pipe in the cabinet, and a pressure gauge is set to display the pressure of the gas in the pressure relief pipe. By setting a pressure relief unit, the gas pressure pushes the baffle to move upward during the increase process. Exhaust pipes are connected on both sides of the pressure relief pipe. When the baffle reaches the position of the exhaust pipe, the gas is discharged through the exhaust pipe to relieve the pressure, thereby avoiding damage to the gas supply pipe. Since different pipes require different pressure relief pressures, the position of the stroke top plate can be adjusted by setting an adjustment unit, so that the pressure required for the baffle to rise to the exhaust pipe position is different, thereby achieving the adjustment effect and further improving the practicality of the device.

[0018] (2) By setting a support portion in the pressure relief pipe cavity, the fixed baffle is fixedly installed in the pressure relief pipe cavity, the lifting rod is fixedly installed on the fixed baffle, the telescopic end of the lifting rod is fixedly connected to the bottom end of the baffle, and the lifting rod plays a supporting, limiting and guiding role for the baffle, thereby improving the stability of the device.

[0019] (3) The travel top plate is movably engaged in the cavity of the pressure relief pipe, and the position of the travel top plate can be moved. A second sealing ring is provided between the travel top plate and the inner wall of the pressure relief pipe to improve the sealing between the travel top plate and the pressure relief pipe. The threaded rod is movably connected to the mounting ring through the bearing, and the mounting ring is fixedly connected to the travel top plate, so that the threaded rod synchronously drives the travel top plate to move during the lifting process. The rise of the travel top plate changes the compression degree of the compression spring, and adjusts the pressure required for the baffle to rise. The practicality of the device is improved through reasonable structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the explosion-proof pressure relief component;

[0021] Figure 2 This is a bottom view of the explosion-proof pressure relief assembly;

[0022] Figure 3 Schematic diagram of the three-dimensional structure of the baffle;

[0023] Figure 4 Schematic diagram of the three-dimensional structure of the support part;

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the regulating unit;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the gas pressure regulating cabinet.

[0026] Legend:

[0027] 10. Pressure relief pipe; 11. Exhaust pipe; 12. Handwheel; 13. Pressure gauge; 14. Support part; 15. Baffle; 16. Fixed baffle; 17. Lifting rod; 18. First sealing ring; 19. Threaded rod; 20. Travel top plate; 21. Mounting ring; 22. Bearing; 23. Compression spring; 24. Cabinet; 25. Pressure relief top. DETAILED DESCRIPTION

[0028] like Figure 1-6As shown: an explosion-proof pressure relief assembly, which includes: a pressure relief pipe 10, the pressure relief pipe 10 is a hollow cylinder, the bottom end of the pressure relief pipe 10 is hollowed out, and the two sides of the pressure relief pipe 10 are connected with exhaust pipes 11; a pressure gauge 13, the pressure gauge 13 is arranged on one side of the pressure relief pipe 10, and the sensor of the pressure gauge 13 is arranged in the cavity of the pressure relief pipe 10, for monitoring the gas pressure in the pressure relief pipe 10; a pressure relief unit, the pressure relief unit is arranged in the cavity of the pressure relief pipe 10, the pressure relief unit includes a baffle 15, a stroke top plate 20 and a compression spring 23, the compression spring 23 is located between the baffle 15 and the stroke top plate 20; an adjusting unit, the adjusting unit includes a threaded rod 19 and a stroke top plate 20, for adjusting the position of the stroke top plate 20.

[0029] A gas pressure regulating cabinet includes a cabinet body 24, a pressure relief top 25 and the above-mentioned explosion-proof pressure relief assembly. The pressure relief top 25 is arranged on the top of the cabinet body 24, and the explosion-proof pressure relief assembly is arranged on the gas supply pipe in the cavity of the cabinet body 24.

[0030] Specifically, by setting an explosion-proof pressure relief component on the air supply pipe in the cabinet 24, a pressure gauge 13 is set to display the pressure of the gas in the pressure relief pipe 10. By setting a pressure relief unit, the gas pressure pushes the baffle 15 to move upward during the increase process, and the exhaust pipe 11 is connected on both sides of the pressure relief pipe 10. When the baffle 15 reaches the position of the exhaust pipe 11, the gas is discharged through the exhaust pipe 11 to relieve the pressure, thereby avoiding damage to the air supply pipe. Since different pipes require different pressure relief pressures, the position of the stroke top plate 20 can be adjusted by setting an adjustment unit, so that the pressure required for the baffle 15 to rise to the position of the exhaust pipe 11 is different, thereby achieving the adjustment effect and further improving the practicality of the device.

[0031] A plurality of first sealing rings 18 are fixedly connected to the outer wall of the baffle 15 , and the first sealing rings 18 are in contact with the inner wall of the pressure relief pipe 10 .

[0032] Specifically, by fixing a plurality of first sealing rings 18 on the outer wall of the baffle 15, the first sealing rings 18 are in contact with the inner wall of the pressure relief pipe 10, so that there is good sealing between the baffle 15 and the pressure relief pipe 10, thereby preventing gas from overflowing through the gap between the baffle 15 and the pressure relief pipe 10.

[0033] A support portion 14 is fixedly mounted within the pressure relief pipe 10 to support the baffle 15. The support portion 14 includes a fixed baffle 16 and a lifting rod 17. The fixed baffle 16 is fixedly mounted horizontally within the pressure relief pipe 10. The bottom end of the lifting rod 17 is fixedly mounted at the center of the fixed baffle 16. The telescopic end of the lifting rod 17 is fixedly connected to the bottom end of the baffle 15, and the axis of the lifting rod 17 is aligned with the axis of the baffle 15.

[0034] Specifically, by setting a support part 14 in the cavity of the pressure relief pipe 10, the fixed baffle 16 is fixedly installed in the cavity of the pressure relief pipe 10, the lifting rod 17 is fixedly installed on the fixed baffle 16, and the telescopic end of the lifting rod 17 is fixedly connected to the bottom end of the baffle 15. The lifting rod 17 plays a supporting, limiting and guiding role for the baffle 15.

[0035] The travel top plate 20 flexibly engages within the pressure relief pipe 10. A second sealing ring is positioned between the travel top plate 20 and the inner wall of the pressure relief pipe 10. A mounting ring 21 is fixedly mounted at the top of the travel top plate 20. A bearing 22 is movably mounted between the threaded rod 19 and the mounting ring 21. The top end of the threaded rod 19 flexibly extends through the top of the pressure relief pipe 10. The two are threadedly connected. The end of the threaded rod 19 facing away from the pressure relief pipe 10 is fixedly connected to the handwheel 12. The ends of the compression spring 23 are fixedly connected to the travel top plate 20 and the retaining plate 15, respectively.

[0036] Specifically, by setting the stroke top plate 20 to be movably engaged in the cavity of the pressure relief pipe 10, the position of the stroke top plate 20 can be moved, and a second sealing ring is provided between the stroke top plate 20 and the inner wall of the pressure relief pipe 10 to improve the sealing between the stroke top plate 20 and the pressure relief pipe 10. The threaded rod 19 is movably connected to the mounting ring 21 through the bearing 22, and the mounting ring 21 is fixedly connected to the stroke top plate 20, so that the threaded rod 19 synchronously drives the stroke top plate 20 to move during the lifting process. The rise of the stroke top plate 20 changes the compression degree of the compression spring 23, adjusts the pressure required for the baffle 15 to rise, and improves the practicality of the device through reasonable structural design.

[0037] The working principle of an explosion-proof pressure relief component and its gas pressure regulating cabinet in the present application is: by arranging an explosion-proof pressure relief component on the gas supply pipe in the cabinet body 24, a pressure gauge 13 is arranged to display the pressure of the gas in the pressure relief pipe 10, and by arranging a pressure relief unit, the gas pressure pushes the baffle 15 to move upward during the increase process, and the exhaust pipe 11 is connected on both sides of the pressure relief pipe 10. When the baffle 15 reaches the position of the exhaust pipe 11, the gas is discharged through the exhaust pipe 11 to relieve the pressure, thereby avoiding damage to the gas supply pipe. Since different pipes require different pressure relief pressures, the position of the stroke top plate 20 can be adjusted by arranging an adjustment unit, so that the pressure required for the baffle 15 to rise to the position of the exhaust pipe 11 is different, thereby achieving the adjustment effect and further improving the practicality of the device.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. An explosion-proof pressure relief assembly, characterized in that: include: A pressure relief pipe (10), wherein the pressure relief pipe (10) is a hollow cylinder, the bottom end of the pressure relief pipe (10) is hollowed out, and both sides of the pressure relief pipe (10) are connected to the exhaust pipe (11); A pressure gauge (13), the pressure gauge (13) being arranged on one side of the pressure relief pipe (10), and a sensor of the pressure gauge (13) being arranged in the cavity of the pressure relief pipe (10) for monitoring the gas pressure in the pressure relief pipe (10); A pressure relief unit is provided in the cavity of the pressure relief pipe (10), and comprises a baffle (15), a travel top plate (20), and a compression spring (23), wherein the compression spring (23) is located between the baffle (15) and the travel top plate (20); The adjusting unit comprises a threaded rod (19) and a travel top plate (20), and is used for adjusting the position of the travel top plate (20).

2. The explosion-proof pressure relief assembly according to claim 1, characterized in that: A plurality of first sealing rings (18) are fixedly connected to the outer wall of the baffle (15), and the first sealing rings (18) are in contact with the inner wall of the pressure relief pipe (10).

3. The explosion-proof pressure relief assembly according to claim 1, characterized in that: A support portion (14) for supporting the baffle (15) is fixedly provided in the cavity of the pressure relief pipe (10), and the support portion (14) includes a fixed baffle (16) and a lifting rod (17).

4. The explosion-proof pressure relief assembly according to claim 3, characterized in that: The fixed baffle (16) is fixedly installed in the cavity of the pressure relief pipe (10) in a horizontal state, the bottom end of the lifting rod (17) is fixedly installed at the center position of the fixed baffle (16), the telescopic end of the lifting rod (17) is fixedly connected to the bottom end of the baffle (15), and the axis center line of the lifting rod (17) and the axis center line of the baffle (15) are on the same straight line.

5. The explosion-proof pressure relief assembly according to claim 1, characterized in that: The travel top plate (20) is movably engaged in the cavity of the pressure relief pipe (10), a second sealing ring is provided between the travel top plate (20) and the inner wall of the pressure relief pipe (10), and a mounting ring (21) is fixedly installed on the top end of the travel top plate (20).

6. The explosion-proof pressure relief assembly according to claim 1, characterized in that: A bearing (22) is movably installed between the threaded rod (19) and the mounting ring (21); the top end of the threaded rod (19) movably penetrates the top end of the pressure relief pipe (10); the threaded rod (19) and the pressure relief pipe (10) are in a threaded connection relationship; and the end of the threaded rod (19) away from the pressure relief pipe (10) is fixedly connected to a handwheel (12).

7. The explosion-proof pressure relief assembly according to claim 1, characterized in that: The two ends of the compression spring (23) are fixedly connected to the travel top plate (20) and the blocking piece (15) respectively.

8. A gas pressure regulating cabinet, characterized in that: The invention comprises a cabinet (24), a pressure relief top (25) and an explosion-proof pressure relief assembly as described in any one of claims 1 to 7, wherein the pressure relief top (25) is arranged at the top of the cabinet (24), and the explosion-proof pressure relief assembly is arranged on the air supply pipe in the cavity of the cabinet (24).

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