A pipeline explosion-proof pressure relief valve

Abstract

This utility model discloses a pipeline explosion-proof pressure relief valve. The key technical features are: a pressure relief valve body with a relief pipe on its outer circular wall and an installation pipe fixedly sleeved on the inner circular wall of the relief pipe. By incorporating a bend, when the pressure in the pipeline exceeds a set value, the pressure relief valve body automatically opens to release the excess pressure, allowing the released gas to exit through the relief pipe. The exited gas passes through the installation pipe, a first connecting pipe, and a second connecting pipe into the interior of the bend. There, the gas impacts a first baffle inside the bend. The first baffle has multiple first vent holes, dispersing the gas into multiple small streams, thus changing the flow direction and speed. The gas then passes through a second baffle for a second buffering effect, reducing the gas flow speed and the impact force during discharge, preventing impact and vibration in the pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of pressure relief valve technology, specifically to a pipeline explosion-proof pressure relief valve. Background Technology

[0002] A relief valve, also known as a safety valve, is a device used to automatically control system pressure. Its main function is to automatically open when the pressure in the system exceeds a set value to release excess pressure, thereby protecting the safety of equipment and pipelines. A pipeline explosion-proof pressure relief valve is a safety device used in pipeline systems. When the pressure in the pipeline exceeds a set value due to explosion or other reasons, it will automatically open to release pressure and protect the pipeline system and related equipment.

[0003] In the prior art, during the release process of the explosion-proof pressure relief valve, the high-speed flow of gas may cause impact and vibration of the pipeline system, resulting in wear and damage to the pipeline and its connecting parts, and reducing the service life of the equipment. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pipeline explosion-proof pressure relief valve, which solves the problem that in the prior art, the high-speed flow of gas during the release process of the explosion-proof pressure relief valve may cause impact and vibration of the pipeline system, resulting in wear and damage to the pipeline and its connecting parts, and reducing the service life of the equipment.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A pipeline explosion-proof pressure relief valve includes: a pressure relief valve body, wherein a relief pipe is provided on the outer circular wall of the pressure relief valve body, an installation pipe is fixedly sleeved on the inner circular wall of the relief pipe, and a first installation ring is fixedly sleeved on the outer circular wall of the installation pipe; and a flow diversion assembly, wherein the flow diversion assembly is disposed on one side of the first installation ring for diverting the discharged gas, the flow diversion assembly including: a second installation ring, wherein the second installation ring is disposed on one side of the first installation ring, a first connecting pipe is fixedly sleeved on the inner circular wall of the second installation ring, a second connecting pipe is fixedly installed at one end of the first connecting pipe, a bend is fixedly sleeved on the inner circular wall of the second connecting pipe, a first baffle is fixedly sleeved on the inner circular wall of the bend, a plurality of first vent holes are opened on one side of the first baffle, a second baffle is fixedly sleeved on the inner circular wall of the bend, and a plurality of second vent holes are opened on the top surface of the second baffle.

[0007] To reduce the hazards caused by the exhaust gas, as a pipeline explosion-proof pressure relief valve of this utility model, preferably, the bottom surface of the bend is provided with a connecting cover, the bottom surface of the connecting cover is provided with a filter hole, and a filter screen is fixedly sleeved on the inner circular wall of the filter hole.

[0008] In order to replace the filter screen, as a pipeline explosion-proof pressure relief valve of this utility model, preferably, the inner circular wall surface of the connecting cover is threaded, the outer circular wall surface of the bend is threaded, and the bend and the connecting cover are connected by threads.

[0009] To facilitate unscrewing the connecting cover, as a pipeline explosion-proof pressure relief valve of this utility model, preferably, several mounting blocks are fixedly installed on the outer circular wall surface of the connecting cover.

[0010] In order to disassemble the bend, as a pipeline explosion-proof pressure relief valve of this utility model, preferably, one end of the first mounting ring is fixedly installed with several threaded rods, and one end of the second mounting ring is provided with several connecting holes, the connecting holes are movably sleeved with the threaded rods, and the outer circular wall surface of the threaded rods is threaded with nuts.

[0011] In order to disassemble the bend, as a pipeline explosion-proof pressure relief valve of this utility model, preferably, a gasket is movably sleeved on the outer circular wall of the threaded rod.

[0012] To improve the sealing performance after the first mounting ring and the second mounting ring are installed together, as a pipeline explosion-proof pressure relief valve of this utility model, preferably, a connecting ring is fixedly sleeved on the inner circular wall of the mounting pipe, and a rubber ring is fixedly installed on one end of the connecting ring, and the rubber ring is movably sleeved with the first connecting pipe.

[0013] In summary, the present invention has the following main advantages:

[0014] By setting up a bend, when the pressure inside the pipeline exceeds the set value, the pressure relief valve body automatically opens to release the excess pressure, allowing the released gas to be discharged through the relief pipe. The discharged gas passes through the installation pipe, the first connecting pipe, and the second connecting pipe and enters the interior of the bend. At this time, the gas will rush to the first baffle inside the bend. The first baffle is provided with multiple first vent holes. The gas is dispersed into multiple small airflows through the first baffle, thereby changing the flow direction and speed of the airflow. Then, it is buffered a second time through the second baffle, reducing the flow speed of the gas and the impact force when discharged, thus avoiding impact and vibration of the pipeline system. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the discharge pipe structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the second mounting ring structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the bent pipe structure of this utility model;

[0019] Figure 5 This is a schematic cross-sectional view of the bent pipe structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the connecting cover structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Pressure relief valve body; 2. Relief pipe; 3. Mounting pipe; 4. First mounting ring; 5. Second mounting ring; 6. Connecting hole; 7. Threaded rod; 8. Nut; 9. Gasket; 10. First connecting pipe; 11. Second connecting pipe; 12. Bend; 13. Connecting ring; 14. Rubber ring; 15. First baffle; 16. First vent hole; 17. Second baffle; 18. Second vent hole; 19. Connecting cover; 20. Filter hole; 21. Filter screen; 22. Mounting block. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A pipeline explosion-proof pressure relief valve includes a pressure relief valve body 1. A relief pipe 2 is provided on the outer circular wall of the pressure relief valve body 1. An installation pipe 3 is fixedly sleeved on the inner circular wall of the relief pipe 2. A first installation ring 4 is fixedly sleeved on the outer circular wall of the installation pipe 3. A flow-diverting assembly is disposed on one side of the first installation ring 4 for diverting the discharged gas. The flow-diverting assembly includes a second installation ring 5, disposed on one side of the first installation ring 4. A first connecting pipe 10 is fixedly sleeved on the inner circular wall of the second installation ring 5. A second connecting pipe 11 is fixedly installed at one end of the first connecting pipe 10. A bend 12 is fixedly sleeved on the inner circular wall of the second connecting pipe 11. A first baffle 15 is fixedly sleeved on the inner circular wall of the bend 12. Several first vent holes 16 are opened on one side of the first baffle 15. A second baffle 17 is fixedly sleeved on the inner circular wall of the bend 12. Several second vent holes 16 are opened on the top surface of the second baffle 17. The vent 18, through the bend 12, allows the pressure relief valve body 1 to automatically open and release excess pressure when the pressure in the pipeline exceeds a set value, allowing the released gas to be discharged through the relief pipe 2. The gas discharged from the relief pipe 2 passes through the installation pipe 3, the first connecting pipe 10, and the second connecting pipe 11 into the interior of the bend 12. When the released gas enters the bend 12, it will rush onto the first baffle 15 inside the bend 12. The first baffle 15 is provided with multiple first vent holes 16. The gas is dispersed into multiple small airflows through the first baffle 15, thereby changing the flow direction and speed of the airflow. Then, it is buffered a second time through the second baffle 17, reducing the flow speed of the gas and the impact force when it is discharged, thus avoiding impact and vibration of the pipeline system. The pressure relief valve body 1 in this device is an explosion-proof pressure relief valve. How to release pressure in the pipeline is existing technology, so it will not be described in detail in this solution.

[0025] Example 2

[0026] Based on the above embodiment 1, refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6A connecting cover 19 is provided on the bottom surface of the bent pipe 12. A filter hole 20 is formed on the bottom surface of the connecting cover 19. A filter screen 21 is fixedly fitted onto the inner circular wall of the filter hole 20. The filter screen 21 is an activated carbon filter with a well-developed pore structure. Gas passes through the filter screen 21 and is discharged outside the bent pipe 12. When the gas passes through the filter screen 21, it can filter harmful gases in the gas, thereby reducing the harm caused by the discharged gas. The inner circular wall of the connecting cover 19 and the outer circular wall of the bent pipe 12 are threaded. The bent pipe 12 and the connecting cover 19 are connected by threads. The connecting cover 19 can be unscrewed from the bent pipe 12 by the threads to replace the filter screen 21, preventing the filter screen 21 from becoming saturated and affecting the filtration effect on the discharged gas. Several mounting blocks 22 are fixedly installed on the outer circular wall of the connecting cover 19, making it easy to unscrew the connecting cover 19 from the bent pipe 12. Below, a number of threaded rods 7 are fixedly installed at one end of the first mounting ring 4, and a number of connecting holes 6 are opened at one end of the second mounting ring 5. The connecting holes 6 are movably sleeved with the threaded rods 7. Nuts 8 are threadedly connected to the outer circular wall of the threaded rods 7. By setting nuts 8, after the nuts 8 are unscrewed from the threaded rods 7, the second mounting ring 5 can be moved outward, so that the bent tube 12 can be disassembled, making it convenient to clean or inspect the inside of the bent tube 12. A washer 9 is movably sleeved on the outer circular wall of the threaded rods 7. By setting washer 9, the washer 9 can prevent the nuts 8 from easily falling off the threaded rods 7 in the environment of vibration and impact. A connecting ring 13 is fixedly sleeved on the inner circular wall of the mounting tube 3. A rubber ring 14 is fixedly installed at one end of the connecting ring 13. The rubber ring 14 is movably sleeved with the first connecting tube 10. By setting rubber ring 14, the rubber ring 14 can improve the sealing performance after the first mounting ring 4 and the second mounting ring 5 are installed together.

[0027] Working principle: Please refer to Figures 1-6 As shown, by setting up the bend 12, when the pressure in the pipeline exceeds the set value, the pressure relief valve body 1 will automatically open to release the excess pressure, allowing the released gas to be discharged through the relief pipe 2. The gas discharged from the relief pipe 2 passes through the installation pipe 3, the first connecting pipe 10 and the second connecting pipe 11 and enters the interior of the bend 12. When the released gas enters the bend 12, it will rush onto the first baffle 15 inside the bend 12. The first baffle 15 is provided with multiple first vent holes 16. The gas will be dispersed into multiple small airflows through the first baffle 15, thereby changing the flow direction and speed of the airflow. Then, it will be buffered for the second time through the second baffle 17, reducing the flow speed of the gas and the impact force when it is discharged, avoiding impact and vibration of the pipeline system. The gas will be discharged outside the bend 12 through the filter screen 21. When the gas passes through the filter screen 21, the filter screen 21 can filter the harmful gases in the gas, thereby reducing the harm caused by the discharged gas.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipeline overpressure relief valve, comprising: include: The pressure relief valve body (1) has a relief pipe (2) on its outer circular wall surface, and an installation pipe (3) is fixedly sleeved on the inner circular wall surface of the relief pipe (2). A first installation ring (4) is fixedly sleeved on the outer circular wall surface of the installation pipe (3). The diversion assembly is disposed on one side of the first mounting ring (4) and is used to divert the discharged gas. The diversion assembly includes: a second mounting ring (5), which is disposed on one side of the first mounting ring (4). A first connecting pipe (10) is fixedly sleeved on the inner circular wall of the second mounting ring (5). A second connecting pipe (11) is fixedly installed at one end of the first connecting pipe (10). A bent pipe (12) is fixedly sleeved on the inner circular wall of the second connecting pipe (11). A first baffle (15) is fixedly sleeved on the inner circular wall of the bent pipe (12). A plurality of first vent holes (16) are opened on one side of the first baffle (15). A second baffle (17) is fixedly sleeved on the inner circular wall of the bent pipe (12). A plurality of second vent holes (18) are opened on the top surface of the second baffle (17).

2. A pipe explosion pressure relief valve according to claim 1, characterized in that: The bottom surface of the bent pipe (12) is provided with a connecting cover (19), and the bottom surface of the connecting cover (19) is provided with a filter hole (20). A filter screen (21) is fixedly sleeved on the inner circular wall of the filter hole (20).

3. A pipe explosion pressure relief valve according to claim 2, wherein: The inner wall of the connecting cover (19) is threaded, and the outer wall of the bent tube (12) is threaded. The bent tube (12) and the connecting cover (19) are connected by threads.

4. A pipe explosion pressure relief valve according to claim 2, wherein: Several mounting blocks (22) are fixedly installed on the outer circular wall surface of the connecting cover (19).

5. A pipe explosion pressure relief valve according to claim 1, wherein: A plurality of threaded rods (7) are fixedly installed at one end of the first mounting ring (4), and a plurality of connecting holes (6) are opened at one end of the second mounting ring (5). The connecting holes (6) are movably sleeved with the threaded rods (7), and the outer circular wall surface of the threaded rods (7) is threaded with nuts (8).

6. A pipe explosion pressure relief valve according to claim 5, wherein: The outer circular wall of the threaded rod (7) is movably fitted with a washer (9).

7. A pipe explosion pressure relief valve according to claim 1, wherein: A connecting ring (13) is fixedly sleeved on the inner circular wall of the mounting tube (3), and a rubber ring (14) is fixedly installed on one end of the connecting ring (13). The rubber ring (14) is movably sleeved with the first connecting tube (10).

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