Accumulated liquid discharging device for natural gas conveying pipeline

Abstract

The utility model discloses a natural gas conveying pipeline accumulated liquid discharging device which comprises a natural gas conveying pipe, a liquid discharging opening is formed in the natural gas conveying pipe, a liquid discharging box is fixedly installed outside the natural gas conveying pipe, the liquid discharging box is arranged below the liquid discharging opening, a liquid discharging pipe is fixedly connected to the liquid discharging box, and the liquid discharging pipe is arranged below the liquid discharging opening. A water bearing plate is slidably mounted in the liquid drainage box, a spring is fixedly mounted at the bottom of the water bearing plate, one end of the spring is fixedly connected to the bottom of the liquid drainage box, and a locking mechanism is arranged in the natural gas conveying pipe. According to the natural gas drainage device, the natural gas conveying pipe is matched with the liquid drainage opening, the liquid drainage box, the water bearing plate, the spring and the liquid drainage pipe, when accumulated liquid reaches a certain amount, the accumulated liquid is automatically drained from the liquid drainage box, manual operation is avoided, the labor intensity of operators is reduced, in the liquid drainage process, the sealing plate can seal the liquid drainage opening, and the liquid drainage effect is improved. And the natural gas can be normally conveyed in the accumulated liquid discharging process.

Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment, specifically to a device for draining liquid accumulation in a natural gas pipeline. Background Technology

[0002] Natural gas pipelines are dedicated pipeline systems used to transport natural gas from extraction sites or storage facilities to end users (such as city gas companies, power plants, and industrial users). They are a crucial link in the natural gas industry chain, undertaking the important task of safely, efficiently, and continuously transporting natural gas.

[0003] Because natural gas is affected by temperature and pressure changes during long-distance transportation, water and heavy hydrocarbon components in natural gas are prone to undergo gas-liquid phase transitions and precipitate out. These components cannot be completely carried out during pipeline transportation, resulting in liquid accumulation in low-lying areas of the pipeline. This leads to increased pipeline pressure, reduced transportation efficiency, accelerated pipeline corrosion, and in severe cases, natural gas leaks. Traditional pipeline liquid drainage devices mostly involve installing a valve at the lower end of the pipeline, requiring operators to manually open the valve periodically to drain the liquid. This operation method is cumbersome and cannot guarantee timely drainage of the liquid. At the same time, the drainage process affects the normal transportation of natural gas. Utility Model Content

[0004] To address the technical problem that existing natural gas transmission pipelines require operators to manually open valves periodically to drain liquid, which is cumbersome and cannot guarantee timely drainage of accumulated liquid, while also affecting the normal transmission of natural gas during the drainage process, this utility model provides a liquid drainage device for natural gas transmission pipelines.

[0005] The technical solution adopted by this utility model is as follows: it includes a natural gas transmission pipe, a drain port is provided on the natural gas transmission pipe, a drain box is fixedly installed on the outside of the natural gas transmission pipe, the drain box is located below the drain port, a drain pipe is fixedly connected to the drain box, a water-receiving plate is slidably installed inside the drain box, a spring is fixedly installed at the bottom of the water-receiving plate, one end of the spring is fixedly connected to the bottom of the drain box, and a locking mechanism is provided in the natural gas transmission pipe.

[0006] Furthermore, a switch button is fixedly installed at the bottom of the drain tank, and an electromagnetic valve is fixedly installed on the drain pipe.

[0007] By adopting the above technical solution, the switch button controls the opening and closing of the solenoid valve.

[0008] Furthermore, a storage battery is fixedly connected to the outside of the drain tank, and the storage battery is electrically connected to the switch button and the solenoid valve.

[0009] By adopting the above technical solution, the battery provides the energy required for the operation of the solenoid valve.

[0010] Furthermore, the locking mechanism includes two sets of mounting slots formed on the inner wall of the drain tank and fasteners rotatably installed in the mounting slots. Both sides of the fasteners are fixedly connected to rotating shafts, which are rotatably connected to the side walls of the mounting slots. A torsion spring is fixedly installed between the fasteners and the mounting slots, and the torsion spring is sleeved on the outside of the rotating shafts.

[0011] By adopting the above technical solution, the accumulated liquid in the pipeline can be completely drained.

[0012] Furthermore, a pressure plate is slidably installed in the drainage tank, and the pressure plate has through holes.

[0013] By adopting the above technical solution, the locking mechanism is automatically released after the drainage operation is completed.

[0014] Furthermore, a connecting rod is fixedly installed on the water-receiving plate, and the connecting rod is slidably installed in the pressure plate. A sealing groove is opened on the inner wall of the natural gas transmission pipe, and a sealing plate is slidably installed in the sealing groove. The sealing plate is fixedly connected to the bottom of the connecting rod.

[0015] By adopting the above technical solution, natural gas continues to be transported normally during the drainage process.

[0016] The beneficial effects of this utility model are as follows: by using a natural gas transmission pipe in conjunction with a drain port, a drain tank, a water-receiving plate, a spring, and a drain pipe, the accumulated liquid in the natural gas transmission pipe enters the drain tank through the drain port for storage. When the accumulated liquid in the drain tank reaches a certain amount, the accumulated liquid is discharged from the drain pipe, thus realizing the automatic removal of accumulated liquid in the natural gas transmission pipeline, avoiding manual operation, reducing the labor intensity of operators, and improving the practicality of the device. The water-receiving plate, in conjunction with a switch button, a solenoid valve, a battery, fasteners, a rotating shaft, and a torsion spring, enables all the accumulated liquid inside the drain tank to be discharged in one drainage operation.

[0017] By using a pressure plate, fasteners, a water-receiving plate, and a spring, the water-receiving plate can automatically release its locking state and move upward after the liquid inside the drain tank is completely drained, allowing for another storage of the liquid. This improves the automation level of the liquid draining device. The water-receiving plate, along with the connecting rod, sealing plate, and sealing groove, allows the sealing plate to seal the drain port during the liquid draining process, preventing natural gas from escaping from the pipeline and ensuring that natural gas can continue to be transported normally during the liquid draining process, thus improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a schematic cross-sectional view of the natural gas transmission pipe in this utility model.

[0020] Figure 3 This is a cross-sectional structural diagram of the drain tank in this utility model;

[0021] Figure 4 This is a schematic diagram of the fastener structure in this utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the drain tank in the draining state of this utility model;

[0023] Figure 6 This is a cross-sectional structural diagram of the drain tank at the end of the draining process in this utility model.

[0024] The following are the labels in the diagram: 1. Natural gas transmission pipe; 2. Drain outlet; 3. Drain tank; 4. Drain pipe; 5. Water receiving plate; 6. Spring; 7. Switch button; 8. Solenoid valve; 9. Battery; 10. Connecting rod; 11. Sealing plate; 12. Sealing groove; 13. Mounting groove; 14. Fastener; 15. Shaft; 16. Torsion spring; 17. Pressure plate; 18. Through hole. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following is in conjunction with the appendix Figure 1-6 The present invention will be further described below.

[0028] To address the problems existing in the background technology, this application proposes the following technical solution: It includes a natural gas transmission pipe 1, a drain outlet 2 on the natural gas transmission pipe 1, a drain tank 3 fixedly installed outside the natural gas transmission pipe 1, the drain tank 3 being located below the drain outlet 2, a drain pipe 4 fixedly connected to the drain tank 3, a water-receiving plate 5 slidably installed inside the drain tank 3, a spring 6 fixedly installed at the bottom of the water-receiving plate 5, one end of the spring 6 fixedly connected to the bottom of the drain tank 3, and a locking mechanism provided in the natural gas transmission pipe 1.

[0029] Drain outlet 2 is located at a low point or bend in the natural gas transmission pipe 1. Water generated during the natural gas transmission process in the natural gas transmission pipe 1 accumulates at the low point or bend in the natural gas transmission pipe 1. The accumulated liquid flows into the drain tank 3 through drain outlet 2 and remains above the water receiving plate 5 (as shown in the attached figure). Figure 2 As shown, a rubber pad is provided on the outside of the water-receiving plate 5 to form an elastic seal between the water-receiving plate 5 and the inside of the drain tank 3, preventing the accumulated liquid from flowing below the water-receiving plate 5. As the accumulated liquid in the drain tank 3 increases, the water-receiving plate 5 moves downward under the gravity of the accumulated liquid, and the spring 6 is compressed and deformed. When the water-receiving plate 5 moves to the position of the drain pipe 4, the accumulated liquid on the water-receiving plate 5 is discharged from the drain pipe 4. After the accumulated liquid is discharged, the gravity of the accumulated liquid on the water-receiving plate 5 decreases, and the compressed spring 6 pushes the water-receiving plate 5 upward to return to its initial state, moving the water-receiving plate 5 above the drain pipe 4 to continue collecting the accumulated liquid. This achieves automatic discharge of the accumulated liquid, avoiding the need for operators to manually open the valve to release the accumulated liquid, thus improving the convenience of the device. The locking mechanism locks the water-receiving plate 5 below the drain pipe 4 during the discharge process, ensuring that the accumulated liquid in the drain tank 3 can be completely discharged.

[0030] Furthermore, a switch button 7 is fixedly installed at the bottom of the drain tank 3, and a solenoid valve 8 is fixedly installed on the drain pipe 4.

[0031] As the liquid in the drain tank 3 increases, the water-receiving plate 5 moves downward. When the water-receiving plate 5 contacts and presses the switch button 7, the water-receiving plate 5 is located below the drain pipe 4. The water-receiving plate 5 presses the switch button 7 to open the solenoid valve 8, and the liquid on the water-receiving plate 5 is discharged from the drain pipe 4.

[0032] Furthermore, a storage battery 9 is fixedly connected to the outside of the drain tank 3, and the storage battery 9 is electrically connected to the switch button 7 and the solenoid valve 8.

[0033] The drain tank 3 provides energy for the opening and closing of the solenoid valve 8. The drain tank 3 can be a solar storage battery, which can convert solar energy into electrical energy for storage, thus avoiding the need for operators to replace the drain tank 3 periodically.

[0034] To further explain, the locking mechanism includes two sets of mounting grooves 13 formed on the inner wall of the drain tank 3 and fasteners 14 rotatably installed in the mounting grooves 13. Both sides of the fasteners 14 are fixedly connected to rotating shafts 15, which are rotatably connected to the side walls of the mounting grooves 13. A torsion spring 16 is fixedly installed between the fasteners 14 and the mounting grooves 13, and the torsion spring 16 is sleeved on the outside of the rotating shafts 15.

[0035] As the liquid accumulates in the drain tank 3, the water-receiving plate 5 moves downwards. The side of the water-receiving plate 5 contacts and presses against the fastener 14. Since the upper end of the fastener 14 is sloped, the water-receiving plate 5 pushes the fastener 14 to rotate in the mounting groove 13. The fastener 14 drives the torsion spring 16 to twist. When the water-receiving plate 5 moves below the slope of the fastener 14, the twisted torsion spring 16 drives the fastener 14 to reverse, and the upper end of the fastener 14 rotates to above the water-receiving plate 5 (as shown in the attached figure). Figure 3 As shown in the diagram, at this time, the water-receiving plate 5 presses the switch button 7 to open the solenoid valve 8, and the accumulated liquid on the water-receiving plate 5 is discharged from the drain pipe 4. As the accumulated liquid decreases, the pressure on the spring 6 decreases, and the spring 6 pushes the water-receiving plate 5 to move upward. However, since the upper end of the fastener 14 is located above the water-receiving plate 5, locking the position of the water-receiving plate 5, the water-receiving plate 5 remains below the drain pipe 4 during the liquid discharge process, ensuring the complete discharge of the accumulated liquid in the drain tank 3.

[0036] Furthermore, a pressure plate 17 is slidably installed in the drain tank 3, and a through hole 18 is provided on the pressure plate 17.

[0037] The pressure plate 17 is made of a buoyant material and floats above the liquid in the drain tank 3. During the drainage process, as the liquid on the water-receiving plate 5 decreases, the pressure plate 17 moves downwards with the liquid level. After the liquid in the drain tank 3 is completely drained, the pressure plate 17 rests above the water-receiving plate 5. During this process, the pressure plate 17 pushes the fastener 14 back into the mounting groove 13, releasing the fastener 14 from its restriction on the water-receiving plate 5 (as shown in the attached diagram). Figure 6 As shown), the compressed spring 6 pushes the water-receiving plate 5 back to its initial position to begin the next liquid drainage cycle. The pressure plate 17 automatically releases the locking fastener 14 on the water-receiving plate 5. The through hole 18 on the pressure plate 17 allows the liquid to flow from the pressure plate 17 to the top of the water-receiving plate 5.

[0038] Furthermore, a connecting rod 10 is fixedly installed on the water receiving plate 5, and the connecting rod 10 is slidably installed in the pressure plate 17. A sealing groove 12 is opened on the inner wall of the natural gas transmission pipe 1, and a sealing plate 11 is slidably installed in the sealing groove 12. The sealing plate 11 is fixedly connected to the bottom of the connecting rod 10.

[0039] As the water-receiving plate 5 moves downward, it drives the sealing plate 11 downward via the connecting rod 10. When the water-receiving plate 5 is locked in place by the fastener 14 and begins to drain, the sealing plate 11 is precisely located in the sealing groove 12. The sealing plate 11, in conjunction with the sealing groove 12, seals the drain port 2 (as shown in the attached figure). Figure 5 As shown in the figure, this prevents natural gas from escaping from the natural gas transmission pipe 1 during drainage, thus ensuring that natural gas does not need to be shut off during drainage and can maintain normal transmission, thereby improving the practicality of the device.

[0040] For specific operation, please refer to the following: Water generated during the natural gas transportation process in the natural gas pipeline 1 accumulates in low-lying areas or bends of the pipeline. The accumulated liquid flows into the drain tank 3 through the drain port 2, where it remains above the water-receiving plate 5. As the amount of liquid in the drain tank 3 increases, the water-receiving plate 5 moves downward under the weight of the liquid, causing the spring 6 to compress and deform. The side of the water-receiving plate 5 contacts and presses against the fastener 14, pushing the fastener 14 to rotate in the mounting groove 13. The fastener 14 drives the torsion spring 16 to twist. When the water-receiving plate 5 moves below the inclined surface of the fastener 14, the twisted torsion spring 16 causes the fastener 14 to reverse. The upper end of the fastener 14 rotates to the top of the water-receiving plate 5, locking the position of the water-receiving plate 5. At this time, the drain pipe 4 is located above the water-receiving plate 5, and the water-receiving plate 5 has pressed the switch button 7 to open the solenoid valve 8. The accumulated liquid in the drain tank 3 is discharged from the drain tank 3 through the drain pipe 4. The water-receiving plate 5 drives the sealing plate 11 to move downward through the connecting rod 10. During the drainage process, the sealing plate 11 seals the drain port 2. As the accumulated liquid in the drain tank 3 decreases, the pressure plate 17 moves downward with the liquid surface to press the fastener 14 back into the mounting groove 13. The water-receiving plate 5 moves upward under the push of the compressed spring 6, and the drain tank 3 stores the accumulated liquid again.

[0041] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A natural gas pipeline liquid loading removal device, comprising: The utility model provides a natural gas conveying pipe (1) is provided with a drainage port (2), and a drainage tank (3) is fixedly installed outside the natural gas conveying pipe (1), the drainage tank (3) is arranged below the drainage port (2), a drainage pipe (4) is fixedly connected to the drainage tank (3), a water receiving plate (5) is slidably installed in the drainage tank (3), a spring (6) is fixedly installed at the bottom of the water receiving plate (5), one end of the spring (6) is fixedly connected to the bottom of the drainage tank (3), and a locking mechanism is arranged in the natural gas conveying pipe (1).

2. A natural gas pipeline liquid loading removal device according to claim 1, wherein, The bottom of the drainage tank (3) is fixedly installed with a switch button (7), and the drainage pipe (4) is fixedly installed with a solenoid valve (8).

3. A natural gas pipeline liquid loading removal device according to claim 2, wherein, The drainage tank (3) is fixedly connected with a storage battery (9) outside, and the storage battery (9) is electrically connected between the switch button (7) and the solenoid valve (8).

4. A natural gas pipeline liquid loading removal device according to claim 3, wherein, The locking mechanism comprises two groups of installation grooves (13) formed on the inner wall of the drainage tank (3) and a fastener (14) rotatably installed in the installation groove (13), both sides of the fastener (14) are fixedly connected with a rotating shaft (15), the rotating shaft (15) is rotatably connected with the side wall of the installation groove (13), a torsional spring (16) is fixedly installed between the fastener (14) and the installation groove (13), and the torsional spring (16) is sleeved outside the rotating shaft (15).

5. A natural gas pipeline liquid loading removal device as defined in claim 4 wherein, The drainage tank (3) is slidably installed with a pressing plate (17), and the pressing plate (17) is provided with a through hole (18).

6. A natural gas pipeline liquid loading removal device as defined in claim 5 wherein, The water receiving plate (5) is fixedly installed with a connecting rod (10), the connecting rod (10) is slidably installed in the pressing plate (17), the inner wall of the natural gas conveying pipe (1) is provided with a sealing groove (12), the sealing groove (12) is slidably installed with a sealing plate (11), and the sealing plate (11) is fixedly connected to the bottom of the connecting rod (10).

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