Long-distance natural gas conveying pipeline accumulated liquid discharging device

Abstract

The utility model discloses a long-distance natural gas conveying pipeline accumulated liquid discharging device which comprises a natural gas pipeline, an accumulated liquid opening is formed in the inner bottom of the natural gas pipeline, an annular sealing sleeve plate arranged outside the accumulated liquid opening in a sleeving mode is installed at the bottom of the natural gas pipeline, and an annular sleeve is arranged at the bottom of the annular sealing sleeve plate. A hydrops sleeve extending to the outside of the annular sleeve is arranged in the annular sleeve in a sleeving manner; through mutual cooperation of a first mounting block, a first metal contact piece, an L-shaped mounting rod, an accumulated liquid sleeve, a sealing plate, a second mounting block, a fixing rod, a second metal contact piece, an annular sleeve, an annular sealing sleeve plate, a spring and an electric push rod, accumulated liquid in a pipeline can be automatically discharged, and the valve opening and liquid discharging functions are achieved without manual operation of an operator; and the working steps of operators are effectively reduced, the corrosion speed of the pipeline is shortened, and the later conveying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas transmission pipelines, in particular to a device for removing accumulated liquid from a long-distance natural gas transmission pipeline. Background Art

[0002] Natural gas pipeline refers to the pipeline that transports natural gas from the mining site or processing plant to the urban gas distribution center or industrial enterprise user, so it is also called gas transmission pipeline. Because natural gas is affected by changes in temperature and pressure during long-distance transportation, water and heavy hydrocarbon components in natural gas are prone to gas-liquid phase change and precipitate during pipeline transportation. They cannot be completely taken out, thus forming liquid accumulation in the low-lying areas of the undulating pipeline, resulting in increased pipeline pressure, reduced transportation efficiency, accelerated pipeline corrosion rate, and in severe cases, it is easy to cause natural gas leakage and other problems;

[0003] Most of the existing pipeline liquid removal devices install a valve at the lower end of the pipeline. In the later stage, the operator needs to manually open the valve to drain the liquid. This operation method is relatively cumbersome and cannot achieve timely discharge of the accumulated liquid, which affects the cumbersomeness and inconvenience of the later drainage. Utility Model Content

[0004] The utility model aims to provide a device for removing accumulated liquid from a long-distance natural gas transmission pipeline. Most of the existing devices for removing accumulated liquid from pipelines have a valve installed at the lower end of the pipeline, and an operator is required to manually open the valve to discharge the liquid in the later stage. This operation method is relatively cumbersome and cannot achieve the timely discharge of accumulated liquid, which affects the cumbersomeness and inconvenience of the later discharge.

[0005] To achieve the above-mentioned purpose, a device for removing accumulated liquid from a long-distance natural gas transmission pipeline is provided, comprising a natural gas pipeline, wherein a liquid accumulation port is provided at the inner bottom of the natural gas pipeline, an annular sealing sleeve plate sleeved on the outside of the liquid accumulation port is installed at the bottom of the natural gas pipeline, an annular sleeve is provided at the bottom of the annular sealing sleeve plate, a liquid accumulation sleeve extending to the outside of the annular sleeve is sleeved inside the annular sleeve, springs connected to the liquid accumulation sleeve are provided on both sides of the top of the annular sleeve, a sealing plate extending to the outside of the liquid accumulation sleeve is provided on one side of the bottom of the liquid accumulation sleeve, an electric push rod is provided at the bottom of one end of the front side of the liquid accumulation sleeve, and the output end of the electric push rod is interconnected with the sealing plate, and drive components are provided at the bottom of both sides of the annular sleeve to improve the efficiency of liquid discharge and reduce the working steps of the operator.

[0006] According to the device for removing accumulated liquid from a long-distance natural gas transmission pipeline, the driving assembly comprises a mounting block 1, a metal contact sheet 1, an L-shaped mounting rod, a mounting block 2, a fixing rod and a metal contact sheet 2. The metal contact sheet 2 and the fixing rod are both provided with two groups, one group of the metal contact sheet 2 is located at one side of the bottom of the accumulated liquid sleeve, and the bottom of the fixing rod close to one side of the metal contact sheet 2 is provided with a mounting block 2;

[0007] Another group of metal contact pieces 2 are provided on the top of the mounting block 2, and the two groups of metal contact pieces 2 cooperate with each other. A mounting block 1 is provided at the middle position of the other group of fixing rods close to the liquid accumulation sleeve. An L-shaped mounting rod is provided on the side of the bottom of the liquid accumulation sleeve away from the group of metal contact pieces 2. Metal contact pieces 1 are provided on the top of the L-shaped mounting rod and the bottom of the mounting block 1, and the two groups of metal contact pieces 1 cooperate with each other to facilitate the automatic removal of accumulated liquid.

[0008] According to the device for removing accumulated liquid from a long-distance natural gas transmission pipeline, four groups of internal threaded through holes are opened at the inner edge of the annular sealing sleeve, and the internal threads of the four groups of internal threaded through holes are penetrated by fixing bolts that cooperate with the natural gas pipeline, so as to facilitate the installation function of the annular sealing sleeve.

[0009] According to the device for removing accumulated liquid from a long-distance natural gas transmission pipeline, a connecting plate is provided on the side of the sealing plate away from the accumulated liquid sleeve, and the connecting plate is interconnected with the output end of the electric push rod, so as to facilitate the electric push rod to push the sealing plate to move.

[0010] According to the device for removing accumulated liquid from a long-distance natural gas transmission pipeline, sealing rings are provided at the top of the inner side and the top of the outer side of the accumulated liquid sleeve, and the sealing rings cooperate with the inner side of the annular sleeve to facilitate the sealing performance of the accumulated liquid sleeve during later installation and movement.

[0011] According to the device for removing accumulated liquid from a long-distance natural gas transmission pipeline, a through groove is provided at the bottom of one side of the accumulated liquid sleeve, and the through groove cooperates with the sealing plate to facilitate the movable sealing function of the sealing plate.

[0012] The above scheme has the beneficial effect: through the mutual cooperation of mounting block one, metal contact piece one, L-shaped mounting rod, liquid accumulation sleeve, sealing plate, mounting block two, fixing rod, metal contact piece two, annular sleeve, annular sealing sleeve plate, spring and electric push rod, the automatic discharge of liquid accumulated in the pipeline can be realized, and there is no need for the operator to manually realize the opening and discharging functions of the valve, which effectively reduces the working steps of the operator, shortens the pipeline corrosion rate, and improves the later transportation efficiency.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an annular sleeve of a long-distance natural gas transmission pipeline liquid removal device of the utility model;

[0016] Figure 2 This is a front view, sectional view, and closed view of a device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to the utility model;

[0017] Figure 3 This is a front view and a cross-sectional view of a device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to the utility model;

[0018] Figure 4 The utility model is a device for removing liquid accumulation in a long-distance natural gas transmission pipeline. Figure 2 Enlarged view of point A.

[0019] Legend:

[0020] 1. Natural gas pipeline; 2. Liquid accumulation port; 3. Mounting block 1; 4. Metal contact piece 1; 5. L-shaped mounting rod; 6. Liquid accumulation sleeve; 7. Sealing plate; 8. Mounting block 2; 9. Fixing rod; 10. Metal contact piece 2; 11. Annular sleeve; 12. Annular sealing sleeve; 13. Spring; 14. Electric push rod. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4The utility model discloses a device for removing accumulated liquid from a long-distance natural gas transmission pipeline, which includes a natural gas pipeline 1. A liquid accumulation port 2 is provided at the inner bottom of the natural gas pipeline 1. An annular sealing sleeve 12 is installed at the bottom of the natural gas pipeline 1 and is sleeved on the outside of the liquid accumulation port 2. An annular sleeve 11 is provided at the bottom of the annular sealing sleeve 12. A liquid accumulation sleeve 6 extending to the outside of the annular sleeve 11 is sleeved inside the annular sleeve 11. Springs 13 connected to the liquid accumulation sleeve 6 are provided on both sides of the top of the annular sleeve 11. A sealing plate 7 extending to the outside of the liquid accumulation sleeve 6 is provided on one side of the inner bottom of the liquid accumulation sleeve 6. An electric push rod 14 is provided at the bottom of one front end of the liquid accumulation sleeve 6, and the output end of the electric push rod 14 is interconnected with the sealing plate 7. Drive components are provided at the bottom of both sides of the annular sleeve 11.

[0023] The driving assembly includes a mounting block 3, a metal contact piece 4, an L-shaped mounting rod 5, a mounting block 8, a fixing rod 9 and a metal contact piece 10. The metal contact piece 10 and the fixing rod 9 are both provided in two groups. One group of metal contact pieces 10 is located on one side of the bottom of the liquid accumulation sleeve 6. A mounting block 8 is provided at the bottom of a group of fixing rods 9 close to one side of the group of metal contact pieces 10. Another group of metal contact pieces 10 is provided on the top of the mounting block 8, and the two groups of metal contact pieces 10 cooperate with each other. A mounting block 3 is provided at the middle position of another group of fixing rods 9 close to one side of the liquid accumulation sleeve 6. An L-shaped mounting rod 5 is provided on the side of the bottom of the liquid accumulation sleeve 6 away from the group of metal contact pieces 10. Metal contact pieces 4 are provided on the top of the L-shaped mounting rod 5 and the bottom of the mounting block 3, and the two groups of metal contact pieces 4 cooperate with each other.

[0024] Four groups of internal threaded through holes are opened at the inner edge of the annular sealing sleeve plate 12 , and the internal threads of the four groups of internal threaded through holes are penetrated by fixing bolts that cooperate with the natural gas pipeline 1 .

[0025] A connecting plate is provided on one side of the sealing plate 7 away from the liquid accumulation sleeve 6 , and the connecting plate is connected to the output end of the electric push rod 14 .

[0026] The top of the inner side and the top of the outer side of the liquid accumulation sleeve 6 are both provided with sealing rings, and the sealing rings and the inner side of the annular sleeve 11 cooperate with each other.

[0027] A through groove is provided at the bottom of one side of the liquid accumulation sleeve 6 , and the through groove and the sealing plate 7 cooperate with each other.

[0028] Working principle: When in use, the operator can directly take the annular sleeve 11 and the above components, drive the annular sealing sleeve plate 12 to be sleeved on the outside of the liquid accumulation port 2, so as to realize the fixed connection between the annular sealing sleeve plate 12 and the natural gas pipeline 1. When liquid accumulation occurs, it can flow into the liquid accumulation sleeve 6 through the liquid accumulation port 2 for storage. When the accumulated liquid gradually increases and becomes heavier, the accumulated liquid sleeve 6 and the above components can be driven to move downward inside the annular sleeve 11 to stretch the spring 13, and then the accumulated liquid sleeve 6 can drive a group of metal contact pieces 10 to move. When the accumulated liquid sleeve 6 moves to the specified position, the contact of the two groups of metal contact pieces 10 can be realized and then the electric push rod 14 can be opened. At the same time, the closing work of natural gas transmission can be realized, and then the sealing plate 7 is pushed out to the inside of the accumulated liquid sleeve 6 by the electric push rod 14, and then the accumulated liquid is automatically discharged. There is no need for the operator to manually open the valve, which reduces the working steps of the operator. The structural design of this component can realize the discharge of accumulated liquid in the first time, improve the later transportation efficiency, and reduce corrosion.

[0029] When the accumulated liquid is discharged, the elastic restoring force of the spring 13 can drive the accumulated liquid sleeve 6 and the above components to recover, and then the two sets of metal contact pieces 10 can be moved away from each other. At this time, the recovery of the accumulated liquid sleeve 6 can drive the L-shaped mounting rod 5 and a set of metal contact pieces 14 to move upward. Then, when the accumulated liquid sleeve 6 is restored to the specified position, the contact of the two sets of metal contact pieces 14 can be used to realize the reverse movement of the electric push rod 14 and then the recovery of the sealing plate 7, so as to realize the sealing of the accumulated liquid sleeve 6, and finally bring about the transportation of natural gas.

[0030] At the same time, one set of metal contact pieces 2 10 and metal contact piece 1 4 are connected to the electric push rod 14 through external wires, and then another set of metal contact pieces 2 10 and metal contact piece 1 4 are connected to an external power source through wires, thereby realizing the reciprocating motion of the above-mentioned accumulated liquid discharge work.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for removing accumulated liquid from a long-distance natural gas transmission pipeline, comprising: A natural gas pipeline (1), characterized in that a liquid accumulation port (2) is provided at the inner bottom of the natural gas pipeline (1), an annular sealing sleeve (12) sleeved on the outside of the liquid accumulation port (2) is installed at the bottom of the natural gas pipeline (1), an annular sleeve (11) is provided at the bottom of the annular sealing sleeve (12), a liquid accumulation sleeve (6) extending to the outside of the annular sleeve (11) is sleeved inside the annular sleeve (11), springs (13) interconnected with the liquid accumulation sleeve (6) are provided on both sides of the inner top of the annular sleeve (11), a sealing plate (7) extending to the outside of the liquid accumulation sleeve (6) is provided on one side of the inner bottom of the liquid accumulation sleeve (6), an electric push rod (14) is provided at the bottom of one front end of the liquid accumulation sleeve (6), and the output end of the electric push rod (14) is interconnected with the sealing plate (7), and drive components are provided at the bottom of both sides of the annular sleeve (11).

2. The device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to claim 1, characterized in that: The driving assembly comprises a mounting block 1 (3), a metal contact piece 1 (4), an L-shaped mounting rod (5), a mounting block 2 (8), a fixing rod (9) and a metal contact piece 2 (10); the metal contact piece 2 (10) and the fixing rod (9) are both provided in two groups, one group of the metal contact piece 2 (10) is located at one side of the bottom of the liquid accumulation sleeve (6), and the other group of the fixing rod (9) is provided with a mounting block 2 (8) at the bottom of one side of the metal contact piece 2 (10); Another set of metal contact pieces 2 (10) is provided on the top of the mounting block 2 (8), and the two sets of metal contact pieces 2 (10) cooperate with each other. A mounting block 1 (3) is provided at the middle position of the other set of fixing rods (9) close to the side of the liquid accumulation sleeve (6). An L-shaped mounting rod (5) is provided on the side of the bottom of the liquid accumulation sleeve (6) away from the set of metal contact pieces 2 (10). A metal contact piece 1 (4) is provided on the top of the L-shaped mounting rod (5) and the bottom of the mounting block 1 (3), and the two sets of metal contact pieces 1 (4) cooperate with each other.

3. The device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to claim 1, characterized in that: Four groups of internal threaded through holes are provided at the inner edge of the annular sealing sleeve plate (12), and the internal threads of the four groups of internal threaded through holes are penetrated by fixing bolts that cooperate with the natural gas pipeline (1).

4. The device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to claim 1, characterized in that: A connecting plate is provided on the side of the sealing plate (7) away from the liquid accumulation sleeve (6), and the connecting plate is connected to the output end of the electric push rod (14).

5. The device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to claim 1, characterized in that: The top of the inner side and the top of the outer side of the liquid accumulation sleeve (6) are both provided with sealing rings, and the sealing rings and the inner side of the annular sleeve (11) cooperate with each other.

6. The device for removing accumulated liquid from a long-distance natural gas transmission pipeline according to claim 1, characterized in that: A through groove is provided at the bottom of one side of the liquid accumulation sleeve (6), and the through groove cooperates with the sealing plate (7).

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