Anti-settling gas stand pipe compensator for soft geology

Abstract

The utility model discloses a soft geology anti-settling fuel gas riser compensator, and particularly relates to the technical field of fuel gas riser compensation, the soft geology anti-settling fuel gas riser compensator comprises connecting pipes, fixing pipes and a corrugated pipe, the two ends of the corrugated pipe are respectively connected with one fixing pipe, each fixing pipe is connected with one connecting pipe through a flange, a compensation pipe is arranged in the corrugated pipe, and the connecting pipes are connected with the connecting pipes through flanges. Locking assemblies are connected to the two ends of the compensation pipe in a screwed mode, sealing assemblies are arranged on the inner sides of the locking assemblies, springs connected to the compensation pipe in a sleeving mode are arranged between the adjacent locking assemblies and sealing assemblies, the compensation pipe achieves automatic compensation through the springs and the locking assemblies during geological sedimentation, the corrugated pipe can prevent the compensation pipe from being corroded, and the service life of the compensation pipe is prolonged. And a multi-sealing structure effectively avoids gas leakage. The utility model can effectively deal with the problem of soft geology settlement, ensures the safety of gas delivery, and has the advantages of convenient installation and reliable sealing.

Description

Technical Field

[0001] This utility model relates to the field of gas riser compensation technology, and more specifically, to a gas riser compensator for preventing subsidence in soft soil. Background Technology

[0002] In gas transmission systems, gas risers are a crucial component, responsible for delivering gas from underground pipelines to users. However, in areas with soft geological conditions, ground subsidence frequently occurs due to unstable geological conditions. This subsidence can exert tensile or compressive stresses on gas risers, potentially causing loosening or rupture at pipe connections, leading to gas leaks. This not only wastes energy but also seriously threatens the lives and property of people in the surrounding area.

[0003] Currently, while some gas riser compensation devices exist on the market, they generally suffer from poor compensation effects and inadequate sealing performance. Some compensators rely solely on simple bellows structures for compensation, which are prone to damage when faced with significant settlement, rendering them unable to provide sustained compensation. Furthermore, most existing compensators employ a single sealing method, which is insufficient to handle complex operating conditions. Over time, the seals are prone to aging and wear, increasing the risk of gas leaks. In addition, some compensators are complex to install, requiring significant time and effort from professional personnel. This not only increases installation costs but also impacts the efficiency of gas riser maintenance and replacement.

[0004] Therefore, a gas riser compensator that can effectively adapt to the settlement of soft soil, has good sealing performance, and is easy to install is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a gas riser compensator for soft soil subsidence prevention, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas riser compensator for preventing settlement in soft soil, comprising a connecting pipe, a fixing pipe, and a corrugated pipe. Each end of the corrugated pipe is connected to a fixing pipe, and each fixing pipe is connected to a connecting pipe via a flange. A compensating pipe is installed inside the corrugated pipe, and locking components are screwed onto both ends of the compensating pipe. A sealing component is installed inside each locking component, and a spring sleeved on the compensating pipe is installed between adjacent locking components and sealing components.

[0007] Preferably, each of the connecting pipes has a connection port at its end, and each connection port is a threaded interface.

[0008] Preferably, the locking assembly includes a locking sleeve, a hexagonal groove, and a sealing ring. One end of the locking sleeve has a hexagonal groove, and the outer surface of the locking sleeve has multiple annular grooves. Each annular groove contains a sealing ring, and the outer surface of the locking sleeve is slidably connected to the inner wall of the connecting pipe.

[0009] Preferably, the sealing assembly includes a metal retainer and a rubber sleeve, with the rubber sleeve provided on one side of the metal retainer, and both the metal retainer and the rubber sleeve are slidably fitted onto the compensation tube.

[0010] Preferably, one end of the rubber sleeve has a tapered structure, and a tapered groove is provided in the corresponding fixing tube, and the rubber sleeve is inserted into the tapered groove.

[0011] Preferably, a sealing gasket is provided at the connection between the connecting pipe and the fixed pipe.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By pressing the springs at both ends of the compensation pipe, the locking assembly slides, achieving automatic compensation for the increased gap between the connecting pipes. At the same time, the corrugated pipe is stretched to cover the compensation pipe, preventing dust and moisture from coming into contact, extending the service life of the compensation pipe, and improving the smoothness of sliding. Furthermore, the spring compression increases the pressure of the sealing assembly on the fixed pipe, and the rubber sleeve is further deformed. Combined with the sealing gasket between the connecting pipe and the fixed pipe, multiple seals effectively prevent gas leakage.

[0014] 2. The hexagonal groove design of the locking sleeve facilitates installation with a hex wrench. The sealing ring on its surface cooperates with the sealing components to achieve multiple seals, ensuring the sealing performance of the compensator during settlement compensation.

[0015] 3. The metal retainer and locking sleeve work together to ensure that the spring can stably push the rubber sleeve to contact the inner wall of the fixed tube during compression and vibration, thus maintaining the sealing effect. The conical structure of the rubber sleeve and the conical groove inside the fixed tube are interlocked and further compressed and deformed when subjected to greater resistance, thereby enhancing the sealing performance at the connection between the fixed tube and the compensation tube. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure at both ends of the compensation tube of this utility model.

[0019] The attached diagram is labeled as follows: 1. Connecting pipe; 2. Fixing pipe; 3. Corrugated pipe; 4. Sealing gasket; 5. Compensating pipe; 6. Locking assembly; 601. Locking sleeve; 602. Hexagonal groove; 603. Sealing ring; 7. Sealing assembly; 701. Metal retaining sleeve; 702. Rubber sleeve; 8. Spring; 9. Connection port. Detailed Implementation

[0020] 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.

[0021] As attached Figure 1-3 The gas riser compensator for soft soil subsidence prevention shown includes a connecting pipe 1, a fixed pipe 2, and a corrugated pipe 3. Each end of the corrugated pipe 3 is connected to a fixed pipe 2, and each fixed pipe 2 is connected to a connecting pipe 1 through a flange. A compensating pipe 5 is provided inside the corrugated pipe 3. Locking components 6 are screwed to both ends of the compensating pipe 5. A sealing component 7 is provided inside each locking component 6. A spring 8 sleeved on the compensating pipe 5 is provided between adjacent locking components 6 and sealing components 7.

[0022] In practice, two connecting pipes 1 are screwed and fixed to the corresponding gas risers. When geological subsidence occurs and the bottom gas riser tends to descend, the connecting pipes 1 are dragged down, causing the two sealing components 7 at both ends of the compensation pipe 5 to be under pressure. This compresses the two springs 8, causing the locking components 6 to slide relative to the corresponding connecting pipes 1, thus increasing the distance between the two connecting pipes 1 and achieving automatic compensation. During the compensation process, the corrugated pipe 3 is also stretched, always able to fit on the outside of the compensation pipe 5, preventing dust or moisture from contacting the compensation pipe 5, thereby preventing corrosion and extending the service life of the compensation pipe 5. At the same time, it improves the smoothness of the sliding of the compensation pipe 5 during compensation. During the compensation process, the two springs 8 are compressed, increasing the pressure of each sealing component 7 against the fixed pipe 2, which causes further compression deformation at the ends of each sealing component 7, thereby further improving the sealing performance at the connection between the fixed pipe 2 and the compensation pipe 5, and further preventing gas leakage.

[0023] Each of the connecting pipes 1 has a connection port 9 at its end, and each of the connection ports 9 is a threaded interface.

[0024] In practice, the threaded connection port 9 allows for direct screw-on connection and fixation when installed on a gas riser, making the operation simple, convenient, and the connection secure.

[0025] The locking assembly 6 includes a locking sleeve 601, a hexagonal groove 602, and a sealing ring 603. The locking sleeve 601 has a hexagonal groove 602 at one end, and multiple annular grooves are formed on the outer surface of the locking sleeve 601. A sealing ring 603 is installed in each annular groove, and the outer surface of the locking sleeve 601 is slidably connected to the inner wall of the connecting pipe 1.

[0026] In practical implementation, a hexagonal groove 602 is provided at one end of the locking sleeve 601, which can be easily used with a hex wrench to install the locking sleeve 601 onto the end of the compensating pipe 5, improving the ease of installation of the locking sleeve 601. A sealing ring 603 can be set on the outer surface of the locking sleeve 601, ensuring that the locking sleeve 601 and the connecting pipe 1 can slide together, while improving the sealing performance of the connection between the connecting pipe 1 and the locking sleeve 601. With the sealing component 7, multiple seals can be achieved, thereby ensuring that the compensating pipe 5 can compensate for the settlement of the riser while ensuring the sealing performance.

[0027] The sealing assembly 7 includes a metal sleeve 701 and a rubber sleeve 702. The rubber sleeve 702 is provided on one side of the metal sleeve 701, and both the metal sleeve 701 and the rubber sleeve 702 are slidably sleeved on the compensation tube 5.

[0028] In practice, the metal retaining sleeve 701 and the locking sleeve 601 are respectively set at both ends of the spring 8. When the spring 8 is compressed, the locking sleeve 601 can increase the thrust of the spring 8 on the metal retaining sleeve 701 due to its fixation. Moreover, when vibration occurs, the spring 8 can always push the metal retaining sleeve 701, ensuring that the rubber sleeve 702 is always in contact with the inner wall of the fixed tube 2 and maintains the seal.

[0029] One end of the rubber sleeve 702 has a tapered structure, and a tapered groove is provided in the corresponding fixing tube 2. The rubber sleeve 702 is inserted into and fitted in the tapered groove.

[0030] In practice, the fixed tube 2 has a tapered groove, which not only blocks the rubber sleeve 702, but also allows the rubber sleeve 702 to be further compressed and deformed when the blocking force increases, thereby further improving the sealing performance of the connection between the fixed tube 2 and the compensation tube 5.

[0031] A sealing gasket 4 is provided at the connection between the connecting pipe 1 and the fixed pipe 2.

[0032] In practice, a sealing gasket 4 is placed between the connecting pipe 1 and the fixed pipe 2. The deformation of the sealing gasket 4 can fill the gap between the connecting pipe 1 and the fixed pipe 2, thereby ensuring a sealed connection between the connecting pipe 1 and the fixed pipe 2 and preventing gas leakage between the connecting pipe 1 and the fixed pipe 2.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas riser compensator for soft soil subsidence prevention, comprising a connecting pipe (1), a fixing pipe (2), and a corrugated pipe (3), wherein each end of the corrugated pipe (3) is connected to a fixing pipe (2), and each fixing pipe (2) is connected to a connecting pipe (1) via a flange, characterized in that: The corrugated pipe (3) is provided with a compensation pipe (5), the compensation pipe (5) is provided with a locking assembly (6) at both ends, the locking assembly (6) is provided with a sealing assembly (7) on the inner side, the adjacent locking assembly (6) and sealing assembly (7) are provided with a spring (8) sleeved on the compensation pipe (5).

2. A soft ground anti-settling gas riser compensator according to claim 1, characterized in that: The connecting pipe (1) is provided with a connecting port (9) at the end, the connecting port (9) is a threaded port.

3. A soft ground anti-settling gas riser compensator according to claim 2, characterized in that: The locking assembly (6) comprises a locking sleeve (601), a hexagonal groove (602) and a sealing ring (603), the locking sleeve (601) is provided with a hexagonal groove (602) at one end, the outer surface of the locking sleeve (601) is provided with a plurality of annular grooves, the sealing ring (603) is installed in the annular groove, and the outer surface of the locking sleeve (601) is in sliding connection with the inner wall of the connecting pipe (1).

4. A soft ground anti-settling gas riser compensator according to claim 3, wherein: The sealing assembly (7) comprises a metal retaining sleeve (701) and a rubber sleeve (702), the metal retaining sleeve (701) is provided with a rubber sleeve (702) on one side, and the metal retaining sleeve (701) and the rubber sleeve (702) are in sliding sleeve connection on the compensation pipe (5).

5. A soft ground anti-settling gas riser compensator according to claim 4, wherein: The rubber sleeve (702) is tapered at one end, and the corresponding fixed pipe (2) is provided with a tapered groove, and the rubber sleeve (702) is inserted into the tapered groove.

6. A soft ground anti-settling gas riser compensator according to claim 5, wherein: The connecting pipe (1) and the fixed pipe (2) are provided with a sealing gasket (4) at the connection.

Images