Natural gas plant emergency shutdown valve rapid response mechanism

Abstract

The utility model belongs to natural gas management field, concretely is natural gas station field emergency cut -out valve quick response mechanism, including first delivery pipe, first delivery pipe is assembled with first self -closing valve, first delivery pipe is assembled with the communicating pipe, the communicating pipe is assembled with second delivery pipe, second delivery pipe is assembled with second self -closing valve, first self -closing valve is assembled with first lifting cover, first lifting cover is assembled with first mounting plate, first mounting plate is assembled with pressure rod, second self -closing valve is assembled with second lifting cover, second lifting cover is assembled with second mounting plate, first self -closing valve and second self -closing valve are assembled with connecting plate, connecting plate is assembled with quick response mechanism, quick response mechanism includes fixed block, fixed block is assembled with assembly rod, assembly rod is assembled with limit stop, assembly rod is assembled with adjusting block, adjusting block is assembled with pull rod, pull rod is assembled with push rod, the device solves natural gas station field to cut off gas source with self -closing valve, influences the problem of gas source delivery through push rod and pressure rod.

Description

Technical Field

[0001] This utility model relates to the field of natural gas management, specifically a rapid response mechanism for emergency shut-off valves in natural gas stations. Background Technology

[0002] Natural gas stations are key facilities in urban gas systems, primarily used for storing, regulating, and distributing natural gas. They also possess functions such as peak shaving and emergency supply assurance. Through storage tanks or underground storage facilities, natural gas is stored in stages and released during peak demand periods to balance supply and demand. High-pressure natural gas can be depressurized to a pressure range suitable for urban pipelines or users, and then distributed to downstream users through transmission and distribution networks. Some stations (such as storage and distribution stations) have emergency gas supply capabilities exceeding several days to cope with sudden gas demand surges. Existing natural gas stations are equipped with emergency shut-off valves. These pipeline natural gas shut-off valves are safety devices installed on low-pressure natural gas pipelines. Their core function is to automatically cut off the gas supply when abnormal gas pressure is detected (underpressure, overpressure, or gas outage). The valve automatically lowers its release button, requiring manual pulling to restore gas supply. However, existing emergency shut-off valves at natural gas stations still have the following problems during use: While existing natural gas stations can automatically cut off the gas supply using self-closing valves, this also affects the delivery of the gas supply and makes it impossible to respond to the coordinated delivery of natural gas from other pipelines, causing inconvenience to operations. Therefore, it is very necessary to use a rapid response mechanism for emergency shut-off valves in natural gas stations in the field of natural gas management. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, although existing natural gas stations can automatically cut off the gas source using self-closing valves, this also affects the delivery of the gas source and cannot respond to the coordinated delivery of natural gas by other pipelines, causing inconvenience to operation. This utility model proposes a rapid response mechanism for emergency shut-off valves in natural gas stations.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a rapid response mechanism for an emergency shut-off valve in a natural gas station, comprising: A first conveying pipe, on which a first self-closing valve is fixedly mounted, a connecting pipe is fixedly mounted, a second conveying pipe is fixedly mounted at one end of the connecting pipe, a second self-closing valve is fixedly mounted on the second conveying pipe, the second self-closing valve is located on one side of the first self-closing valve, a first lifting cover is mounted on the first self-closing valve, a first mounting plate is fixedly mounted on the first lifting cover, a pressure rod is fixedly mounted at the bottom of the first mounting plate, a second lifting cover is mounted on the second self-closing valve, a second mounting plate is fixedly mounted on the second lifting cover, and a connecting plate is fixedly mounted between the first self-closing valve and the second self-closing valve. The rapid response mechanism includes a fixing block, which is fixedly assembled with a connecting plate. Assembly rods are symmetrically fixedly assembled on the fixing block. Limit blocks are fixedly assembled on the top of the two assembly rods. Adjusting blocks are movably assembled on the two assembly rods. A traction rod is fixedly assembled on the adjusting block. The traction rod is located above the bearing plate. A push rod is fixedly assembled at one end of the traction rod. The push rod is located below the second mounting plate.

[0005] Preferably, one end of the first conveying pipe is fixedly equipped with an external threaded mounting head, the connecting pipe is located between the first self-closing valve and the external threaded mounting head, and the other ends of the first and second conveying pipes are both fixedly equipped with internal threaded mounting heads.

[0006] Preferably, a touch switch is fixedly mounted on the first self-closing valve, a touch button is fixedly mounted on the touch switch, the touch button is located below the pressure rod, a first connecting wire is fixedly mounted on the touch switch, and a plug is fixedly mounted on one end of the first connecting wire.

[0007] Preferably, a bearing block is fixedly mounted on the connecting plate, guide rods are symmetrically fixedly mounted between the fixed block and the bearing block, an operating motor is fixedly mounted on the fixed block, and a second connecting line is fixedly mounted between the operating motor and the touch switch.

[0008] Preferably, the output end of the operating motor is fixedly equipped with a transmission screw, which movably passes through the fixed block, and a moving block is threaded onto the transmission screw. The moving block is movably assembled with two guide rods, and an operating plate is fixedly equipped at the bottom of the moving block.

[0009] Preferably, a bearing plate is fixedly mounted on the end face of the adjusting block, and an adjusting rod is movably mounted on the bearing plate, with the other end of the adjusting rod being movably mounted to the operating plate.

[0010] Preferably, the support block is symmetrically provided with movable openings, which are located on both sides of the guide rod. Each movable opening is symmetrically fixedly equipped with a connecting rod, and each connecting rod is movably equipped with a traction block. Each traction block is fixedly equipped with a vertical block, which is located on one side of the support block. Each vertical block is fixedly equipped with an extension block at its top, and each extension block is fixedly equipped with a stop block at one end, which is located above the first lifting cover.

[0011] Preferably, each end face of the traction block is fixedly fitted with a fixing plate, and each of the two symmetrical sides of the moving block is fixedly fitted with a support plate. Each support plate is movably fitted with a guide rod, and the other end of the guide rod is movably fitted with the fixing plate.

[0012] The advantages of this utility model are: 1. This utility model involves plugging a plug into a socket, fixing the external and internal threaded mounting heads on the first delivery pipe and the internal threaded mounting head on the second delivery pipe to the natural gas pipeline, respectively, and keeping the second cover on the second self-closing valve in a closed state. Natural gas flows in the first delivery pipe. When an abnormal gas supply pressure (underpressure, overpressure, or gas outage) is detected, the first cover on the first self-closing valve automatically falls back. The first cover drives the pressure rod on the first mounting plate to touch the touch button on the touch switch, thereby starting the operating motor. The operating motor drives the transmission screw to move... The block rotates, causing the moving block to rotate towards the fixed block on the two guide rods. The moving block moves on the two guide rods, and the adjusting rod drives the adjusting block to adjust its height on the two mounting rods. This causes the adjusting block to drive the push rod on the traction rod to move upward. The push rod pushes the second lifting cover on the second mounting plate upward, allowing the second self-closing valve to control the flow of the second delivery pipe. This facilitates the flow of natural gas from the inside of the first delivery pipe into the inside of the connecting pipe, and then from the inside of the connecting pipe through the second delivery pipe. This allows for timely response to the backup pipeline flow and improves the efficiency of use.

[0013] 2. When the movable block moves toward the fixed block, the guide rod pulls the traction block to move on the two connecting rods. The traction block drives the extension block on the vertical block to move, and the extension block drives the stop block to move until the stop block moves above the first lifting cover. The stop block restricts the first lifting cover from being pushed upward, thus preventing the first lifting cover from being pulled upward without verification and improving safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of the assembly structure of the first self-closing valve, the second self-closing valve, and the rapid response mechanism of this utility model. Figure 2 This is a schematic diagram of the assembly structure of the first self-closing valve, the second self-closing valve, and the rapid response mechanism of this utility model. Figure 3 This is a schematic diagram of the assembly structure of the first and second self-closing valves of this utility model. Figure 4 This is a schematic diagram of the assembly structure of the first self-closing valve, the second self-closing valve, and the connecting plate of this utility model. Figure 5This is a schematic diagram of the rapid response mechanism of this utility model.

[0016] In the picture: 10. First conveying pipe; 11. External threaded mounting head; 12. Connecting pipe; 13. Second conveying pipe; 20. Internal threaded mounting head; 21. First self-closing valve; 22. Second self-closing valve; 23. First lifting cover; 30. Second lifting cover; 31. First mounting plate; 32. Pressure rod; 33. Second mounting plate; 40. Touch switch; 41. Touch button; 42. First connecting wire; 43. Plug; 50. Second connecting line; 51. Connecting plate; 52. Quick Response Mechanism; 5200. Fixed Block; 5201. Bearing Block; 5202. Guide Rod; 5203. Operating Motor; 5204. Transmission Screw; 5205. Moving Port; 5206. Connecting Rod; 5207. Traction Block; 5208. Vertical Block; 5209. Extension Block; 5210. Stop Block; 5211. Moving Block; 5212. Support Plate; 5213. Fixed Plate; 5214. Guide Rod; 5215. Operating Plate; 5216. Assembly Rod; 5217. Limiting Block; 5218. Adjusting Block; 5219. Bearing Plate; 5220. Adjusting Rod; 5221. Traction Rod; 5222. Push Rod. Detailed Implementation

[0017] 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.

[0018] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a rapid response mechanism for an emergency shut-off valve in a natural gas station. (Refer to...) Figures 1-5The rapid response mechanism of the emergency shut-off valve at a natural gas station includes a first delivery pipe 10, on which a first self-closing valve 21 is fixedly mounted. An external threaded mounting head 11 is fixedly mounted at one end of the first delivery pipe 10. A connecting pipe 12 is fixedly mounted on the first delivery pipe 10, located between the first self-closing valve 21 and the external threaded mounting head 11. A second delivery pipe 13 is fixedly mounted at one end of the connecting pipe 12. A second self-closing valve 22 is fixedly mounted on the second delivery pipe 13, located to one side of the first self-closing valve 21. Internal threaded mounting heads 20 are fixedly mounted at the other ends of both the first delivery pipe 10 and the second delivery pipe 13. A first lifting cap 23 is mounted on the first self-closing valve 21. A first mounting plate 31 is fixedly mounted on a lifting cover 23. A pressure rod 32 is fixedly mounted on the bottom of the first mounting plate 31. A touch switch 40 is fixedly mounted on a first self-closing valve 21. A touch button 41 is fixedly mounted on the touch switch 40. The touch button 41 is located below the pressure rod 32. A first connecting wire 42 is fixedly mounted on the touch switch 40. A plug 43 is fixedly mounted at one end of the first connecting wire 42. A second lifting cover 30 is mounted on a second self-closing valve 22. A second mounting plate 33 is fixedly mounted on the second lifting cover 30. A connecting plate 51 is fixedly mounted between the first self-closing valve 21 and the second self-closing valve 22. A quick-response mechanism 52 is mounted on the connecting plate 51. The quick-response mechanism 52 includes a fixing block 52. 00, The fixed block 5200 is fixedly assembled with the connecting plate 51. The connecting plate 51 is fixedly assembled with a bearing block 5201. Guide rods 5202 are symmetrically fixedly assembled between the fixed block 5200 and the bearing block 5201. The fixed block 5203 is fixedly assembled with an operating motor 5203. A second connecting line 50 is fixedly assembled between the operating motor 5203 and the touch switch 40. A transmission screw 5204 is fixedly assembled at the output end of the operating motor 5203. The transmission screw 5204 movably passes through the fixed block 5200, and a moving block 5211 is threaded onto the transmission screw 5204. The moving block 5211 is movably assembled with the two guide rods 5202. The bottom of the moving block 5211 is fixedly mounted with The device is equipped with an operating plate 5215. Assembly rods 5216 are symmetrically fixedly mounted on the fixing block 5200. Limiting blocks 5217 are fixedly mounted on the top of the two assembly rods 5216. Adjusting blocks 5218 are movably mounted on the two assembly rods 5216. A bearing plate 5219 is fixedly mounted on the end face of the adjusting block 5218. An adjusting rod 5220 is movably mounted on the bearing plate 5219. The other end of the adjusting rod 5220 is movably assembled with the operating plate 5215. A traction rod 5221 is fixedly mounted on the adjusting block 5218. The traction rod 5221 is located above the bearing plate 5219. A push rod 5222 is fixedly mounted on one end of the traction rod 5221. The push rod 5222 is located below the second mounting plate 33.

[0019] In this invention, the plug 43 is inserted into the socket. The external threaded mounting head 11 and internal threaded mounting head 20 on the first delivery pipe 10 and the internal threaded mounting head 20 on the second delivery pipe 13 are respectively fixed to the natural gas pipeline. The second cover 30 on the second self-closing valve 22 is in the closed state. Natural gas flows in the first delivery pipe 10. When an abnormal gas supply pressure (underpressure, overpressure, or gas outage) is detected, the first cover 23 on the first self-closing valve 21 automatically falls back. The first cover 23 drives the pressure rod 32 on the first mounting plate 31 to touch the touch button 41 on the touch switch 40, causing the operating motor 5203 to start. The operating motor 5203 drives the transmission screw 5204 to rotate on the moving block 5211, causing... The movable block 5211 rotates on the two guide rods 5202 toward the fixed block 5200, allowing the movable block 5211 to move on the two guide rods 5202. The adjusting rod 5220 drives the adjusting block 5218 to adjust its height on the two mounting rods 5216, causing the adjusting block 5218 to drive the push rod 5222 on the traction rod 5221 to move upward. The push rod 5222 pushes the second lifting cover 30 on the second mounting plate 33 to pull upward, so that the second self-closing valve 22 can control the flow of the second delivery pipe 13. This helps natural gas flow from the inside of the first delivery pipe 10 into the inside of the connecting pipe 12, and then from the inside of the connecting pipe 12 through the second delivery pipe 13, facilitating timely response to the flow of the backup pipeline and improving the usage effect.

[0020] Reference Figure 1 and Figure 5 The bearing block 5201 is symmetrically provided with movable ports 5205, which are located on both sides of the guide rod 5202. Connecting rods 5206 are symmetrically fixedly mounted on each movable port 5205. Traction blocks 5207 are movably mounted on each of the two connecting rods 5206. Vertical blocks 5208 are fixedly mounted on each traction block 5207. Vertical blocks 5208 are located on one side of the bearing block 5201. Extension blocks 5209 are fixedly mounted on the top of each vertical block 5208. A stop block 5210 is fixedly mounted on one end of each extension block 5209. The stop block 5210 is located above the first lifting cover 23. A fixing plate 5213 is fixedly mounted on the end face of each traction block 5207. Support plates 5212 are fixedly mounted on both symmetrical sides of the movable block 5211. Guide rods 5214 are movably mounted on each support plate 5212. The other end of the guide rod 5214 is movably assembled with the fixing plate 5213.

[0021] In this utility model, when the moving block 5211 moves toward the fixed block 5200, the guide rod 5214 pulls the traction block 5207 to move on the two connecting rods 5206. The traction block 5207 drives the extension block 5209 on the vertical block 5208 to move. The extension block 5209 drives the stop block 5210 to move until the stop block 5210 moves above the first lifting cover 23. The stop block 5210 restricts the first lifting cover 23 from being pushed upward, thus preventing the first lifting cover 23 from being pulled upward without verification and improving safety.

[0022] Working principle: The plug 43 is inserted into the socket. The external threaded mounting head 11 and internal threaded mounting head 20 on the first delivery pipe 10, and the internal threaded mounting head 20 on the second delivery pipe 13, are respectively fixed to the natural gas pipeline. The second cover 30 on the second self-closing valve 22 is in the closed state. Natural gas flows in the first delivery pipe 10. When an abnormal gas supply pressure (underpressure, overpressure, or gas outage) is detected, the first cover 23 on the first self-closing valve 21 automatically falls back. The first cover 23 drives the first... The pressure rod 32 on the mounting plate 31 touches the touch button 41 on the touch switch 40, causing the operating motor 5203 to start. The operating motor 5203 drives the transmission screw 5204 to rotate on the moving block 5211, causing the moving block 5211 to rotate towards the fixed block 5200 on the two guide rods 5202. The moving block 5211 moves on the two guide rods 5202. The adjusting rod 5220 drives the adjusting block 5218 to adjust its height on the two mounting rods 5216. The adjusting block 5218 drives the push rod 5222 on the traction rod 5221 to move upward. The push rod 5222 pushes the second lifting cover 30 on the second mounting plate 33 to pull upward, so that the second self-closing valve 22 can control the flow of the second delivery pipe 13. This helps natural gas flow from the inside of the first delivery pipe 10 into the inside of the connecting pipe 12, and then from the inside of the connecting pipe 12 through the second delivery pipe 13. This facilitates timely response to the backup pipeline flow and improves the usage effect. At the same time, when the moving block 5211... 211 moves towards the fixed block 5200. The guide rod 5214 pulls the traction block 5207 to move on the two connecting rods 5206. The traction block 5207 drives the extension block 5209 on the vertical block 5208 to move. The extension block 5209 drives the stop block 5210 to move until the stop block 5210 moves above the first lifting cover 23. The stop block 5210 restricts the first lifting cover 23 from being pushed upward, preventing the first lifting cover 23 from being pulled upward without verification, thus improving safety.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rapid response mechanism for an emergency shut-off valve at a natural gas station, characterized in that: include: A first conveying pipe (10) is fixedly fitted with a first self-closing valve (21), a connecting pipe (12) is fixedly fitted with the first conveying pipe (10), a second conveying pipe (13) is fixedly fitted with one end of the connecting pipe (12), a second self-closing valve (22) is fixedly fitted with the second conveying pipe (13), the second self-closing valve (22) is located on one side of the first self-closing valve (21), a first lifting cover (23) is fitted with the first lifting cover (23), a first mounting plate (31) is fixedly fitted with the first lifting cover (23), a pressure rod (32) is fixedly fitted with the bottom of the first mounting plate (31), a second lifting cover (30) is fitted with the second self-closing valve (22), a second mounting plate (33) is fixedly fitted with the second lifting cover (30), and a connecting plate (51) is fixedly fitted between the first self-closing valve (21) and the second self-closing valve (22). The rapid response mechanism (52) includes a fixing block (5200), which is fixedly assembled with the connecting plate (51). The fixing block (5200) is symmetrically fixedly assembled with assembly rods (5216). Limiting blocks (5217) are fixedly assembled on the top of the two assembly rods (5216). Adjusting blocks (5218) are movably assembled on the two assembly rods (5216). A traction rod (5221) is fixedly assembled on the adjusting block (5218). The traction rod (5221) is located above the bearing plate (5219). A push rod (5222) is fixedly assembled at one end of the traction rod (5221). The push rod (5222) is located below the second mounting plate (33).

2. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 1, characterized in that: One end of the first delivery pipe (10) is fixedly fitted with an external threaded mounting head (11), and the connecting pipe (12) is located between the first self-closing valve (21) and the external threaded mounting head (11). The other ends of the first delivery pipe (10) and the second delivery pipe (13) are both fixedly fitted with internal threaded mounting heads (20).

3. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 1, characterized in that: A touch switch (40) is fixedly mounted on the first self-closing valve (21), a touch button (41) is fixedly mounted on the touch switch (40), the touch button (41) is located below the pressure rod (32), a first connecting line (42) is fixedly mounted on the touch switch (40), and a plug (43) is fixedly mounted on one end of the first connecting line (42).

4. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 3, characterized in that: A bearing block (5201) is fixedly mounted on the connecting plate (51), and guide rods (5202) are symmetrically fixedly mounted between the fixing block (5200) and the bearing block (5201). An operating motor (5203) is fixedly mounted on the fixing block (5200), and a second connecting line (50) is fixedly mounted between the operating motor (5203) and the touch switch (40).

5. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 4, characterized in that: The output end of the operating motor (5203) is fixedly equipped with a transmission screw (5204), which movably passes through the fixed block (5200). A moving block (5211) is threaded on the transmission screw (5204), and the moving block (5211) is movably assembled with two guide rods (5202). An operating plate (5215) is fixedly equipped at the bottom of the moving block (5211).

6. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 5, characterized in that: The end face of the adjusting block (5218) is fixedly fitted with a bearing plate (5219), and an adjusting rod (5220) is movably fitted on the bearing plate (5219). The other end of the adjusting rod (5220) is movably fitted with the operating plate (5215).

7. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 6, characterized in that: The support block (5201) is symmetrically provided with movable openings (5205), which are located on both sides of the guide rod (5202). Each movable opening (5205) is symmetrically fixedly equipped with a connecting rod (5206). Each of the two connecting rods (5206) is movably equipped with a traction block (5207). Each traction block (5207) is fixedly equipped with a vertical block (5208). The vertical block (5208) is located on one side of the support block (5201). Each vertical block (5208) is fixedly equipped with an extension block (5209) at the top. Each extension block (5209) is fixedly equipped with a stop block (5210) at one end. The stop block (5210) is located above the first lifting cover (23).

8. The rapid response mechanism for the emergency shut-off valve of a natural gas station according to claim 7, characterized in that: The end face of the traction block (5207) is fixedly fitted with a fixing plate (5213), and the two symmetrical sides of the moving block (5211) are fixedly fitted with a support plate (5212). The support plate (5212) is movably fitted with a guide rod (5214), and the other end of the guide rod (5214) is movably fitted with the fixing plate (5213).

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