Pipeline valve chamber and oil-gas pipeline

Abstract

The utility model belongs to the technical field of oil and gas storage and transportation equipment, and discloses a pipeline valve chamber and an oil and gas pipeline. The pipeline valve chamber comprises a main pipeline section, an upstream branch section, a downstream branch section, a second block valve and an emptying section. One end of the main pipeline section is connected to the upstream pipeline, the other end of the main pipeline section is connected to the downstream pipeline, and the main pipeline section is provided with a first block valve; one end of the upstream branch section communicates with the main pipeline section, and the upstream branch section is located on the side, close to the upstream pipeline, of the first block valve; one section of the downstream branch section communicates with the main pipeline section, the downstream branch section is located on the side, close to the downstream pipeline, of the first block valve, and the upstream branch section communicates with the downstream branch section; the second block valve is arranged between the upstream branch section and the downstream branch section; the emptying section comprises an emptying pipe and an emptying valve, and the emptying pipe is communicated with the upstream branch section, so that the stroke of oil gas is shortened, residues in the upstream branch section and the downstream branch section are reduced, the working efficiency is high, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas storage and transportation equipment technology, and in particular to a pipeline valve chamber and an oil and gas pipeline. Background Technology

[0002] With improvements in transportation technology, changes in transport volume, or adjustments to facilities along the pipeline route, long-distance pipelines may require upgrades and modifications. Before undertaking projects such as pipeline expansion, branch connections, installation of new metering equipment, equipment maintenance by upstream and downstream enterprises, process optimization, or production plan adjustments, the gas or liquid in the relevant pipeline section must be vented (i.e., planned venting) to ensure the safety of construction personnel. During operation, long-distance pipelines may experience leaks due to various reasons such as pipeline rupture or corrosion perforation. When such accidents occur, venting measures must be taken quickly (i.e., emergency venting) to control the scope of the accident and reduce the amount of leakage.

[0003] In existing pipeline valve chambers, the vent pipe is located on the downstream side of the vent valve. When venting is performed, the venting gas needs to pass through the vent valve before entering the vent pipe. This design is not rational enough and the operation efficiency is low. Utility Model Content

[0004] The purpose of this utility model is to provide a pipeline valve chamber and oil and gas pipeline with high venting efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Pipeline valve chamber includes:

[0007] The main pipeline segment is connected to the upstream pipeline at one end and to the downstream pipeline at the other end, and the main pipeline segment is equipped with a first shut-off valve;

[0008] An upstream branch segment, one end of which is connected to the main pipeline segment, is located on the side of the first shut-off valve near the upstream pipeline;

[0009] The downstream branch segment is connected to the main pipeline segment. The downstream branch segment is located on the side of the first shut-off valve near the downstream pipeline. The upstream branch segment is connected to the downstream branch segment.

[0010] The second shut-off valve is disposed between the upstream branch segment and the downstream branch segment;

[0011] The venting section includes a venting pipe and a venting valve, wherein the venting pipe is connected to the upstream branch section and the venting valve is disposed on the venting pipe.

[0012] Preferably, the upstream branch segment is equipped with a third shut-off valve;

[0013] The downstream branch section is equipped with a fourth shut-off valve.

[0014] Preferably, the system also includes an upstream controller, which is communicatively connected to the first shut-off valve, the second shut-off valve, the third shut-off valve, and the vent valve.

[0015] Preferably, the system also includes a downstream controller, which is communicatively connected to the first shut-off valve, the second shut-off valve, and the fourth shut-off valve.

[0016] Preferably, the system also includes a connecting segment, one end of which is connected to the upstream branch segment and the other end of which is connected to the downstream branch segment, and the second shut-off valve is disposed on the connecting segment.

[0017] Preferably, a skid-mounted structure is also included, the skid-mounted structure comprising:

[0018] The first skid block is detachably mounted on the outer periphery of the upstream branch segment;

[0019] The second skid block is detachably mounted on the outer periphery of the downstream branch segment;

[0020] The third skid block is detachably disposed on the outer periphery of the connecting segment.

[0021] Preferably, the system also includes a suction mechanism, wherein the connecting segment is provided with an upstream suction channel, and the suction end of the suction mechanism is connected to the opening of the upstream suction channel.

[0022] Preferably, the downstream branch segment is provided with a downstream suction channel, and the suction end of the suction mechanism can be connected to the opening of the downstream suction channel.

[0023] Oil and gas pipelines, including upper pipeline valve chambers.

[0024] The beneficial effects of this utility model are:

[0025] When pipeline venting is required, the first and second shut-off valves can be closed simultaneously to prevent oil and gas from flowing to the downstream branch section and downstream pipeline; and the vent valve can be opened to allow the oil and gas flowing into the upstream branch section to be discharged from the vent section, thus completing the venting operation; the vent section is connected to the upstream branch section to shorten the travel distance during oil and gas venting, reduce the amount of oil and gas residue in the upstream and downstream branch sections, and achieve high operation efficiency and convenient operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the pipeline valve chamber described in this utility model.

[0027] In the picture:

[0028] 1. Main pipeline segment; 11. First shut-off valve;

[0029] 2. Upstream branch segment; 20. Upstream controller; 21. Third shut-off valve;

[0030] 3. Downstream branch section; 30. Downstream controller; 31. Fourth shut-off valve; 32. Downstream suction channel;

[0031] 4. Second shut-off valve;

[0032] 5. Vent section; 51. Vent pipe; 52. Vent valve;

[0033] 6. Connecting segment; 61. Upstream suction channel;

[0034] 7. Skid-mounted structure; 71. First skid; 72. Second skid; 73. Third skid. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1 As shown, this utility model provides a pipeline valve chamber for venting and maintenance of oil and gas pipelines. The pipeline valve chamber includes a main pipeline segment 1, an upstream branch segment 2, a downstream branch segment 3, a second shut-off valve 4, and a venting segment 5. The main pipeline segment 1 is connected at one end to the upstream pipeline and at the other end to the downstream pipeline, and is equipped with a first shut-off valve 11. The upstream branch segment 2 is connected at one end to the main pipeline segment 1 and is located on the side of the first shut-off valve 11 near the upstream pipeline. The downstream branch segment 3 is connected at one end to the main pipeline segment 1 and is located on the side of the first shut-off valve 11 near the downstream pipeline; the upstream branch segment 2 is connected to the downstream branch segment 3. The second shut-off valve 4 is located between the upstream branch segment 2 and the downstream branch segment 3. The venting segment 5 includes a vent pipe 51 and a vent valve 52; the vent pipe 51 is connected to the upstream branch segment 2, and the vent valve 52 is mounted on the vent pipe 51.

[0040] When pipeline venting is required, the first shut-off valve 11 and the second shut-off valve 4 can be closed simultaneously to prevent oil and gas from flowing to the downstream branch section 3 and the downstream pipeline; and the vent valve 52 can be opened to allow the oil and gas flowing into the upstream branch section 2 to be discharged from the vent section 5 to complete the venting operation; the vent section 5 is connected to the upstream branch section 2 to shorten the travel distance during oil and gas venting, reduce the oil and gas residue in the upstream branch section 2 and the downstream branch section 3, and has high operation efficiency and is easy to operate.

[0041] Specifically, the upstream branch segment 2 is equipped with a third shut-off valve 21; the downstream branch segment 3 is equipped with a fourth shut-off valve 31. The aforementioned third shut-off valve 21 and fourth shut-off valve 31 are configured to be closed when air defense operations are not required, so that oil and gas cannot flow into the upstream branch segment 2 and the downstream branch segment 3.

[0042] More specifically, the pipeline valve chamber also includes a connecting section 6, one end of which is connected to the upstream branch section 2, and the other end is connected to the downstream branch section 3. The second shut-off valve 4 is disposed on the connecting section 6. The aforementioned connecting section 6 is configured to connect the upstream branch section 2 and the downstream branch section 3 when the distance between them is too large.

[0043] For example, in this embodiment, the connecting segment 6 is provided with various lengths and shapes to adapt to the different distances between the upstream branch segment 2 and the downstream branch segment 3 under different working conditions, so as to enhance the versatility of the pipeline valve chamber.

[0044] Specifically, the pipeline valve chamber also includes a skid-mounted structure 7, which comprises a first skid 71, a second skid 72, and a third skid 73. The first skid 71 is detachably mounted on the outer periphery of the upstream branch segment 2; the second skid 72 is detachably mounted on the outer periphery of the downstream branch segment 3; and the third skid 73 is detachably mounted on the outer periphery of the connecting segment 6. The skid-mounted structure 7 facilitates long-distance transportation and rapid temporary installation of the pipeline valve chamber, and provides protection during long-distance transportation. During the production of the pipeline valve chamber, the upstream branch segment 2, the downstream branch segment 3, and the connecting segment 6 can be produced separately, transported to their designated installation locations, and finally connected and installed.

[0045] More specifically, the pipeline valve chamber also includes an upstream controller 20, which is communicatively connected to the first shut-off valve 11, the second shut-off valve 4, the third shut-off valve 21, and the vent valve 52. The upstream controller 20 allows operators to remotely open and close the first shut-off valve 11, the second shut-off valve 4, the third shut-off valve 21, and the vent valve 52, improving operational efficiency.

[0046] For example, in this embodiment, the upstream controller 20 is fixedly disposed inside the first skid 71, providing integrated control and improving operational efficiency. In other embodiments, the upstream controller 20 may also be a portable remote controller; its specific form is not limited here.

[0047] More specifically, the pipeline valve chamber also includes a downstream controller 30, which is communicatively connected to the first shut-off valve 11, the second shut-off valve 4, and the fourth shut-off valve 31. The downstream controller 30 allows operators to remotely open and close the first shut-off valve 11, the second shut-off valve 4, and the fourth shut-off valve 31, improving operational efficiency.

[0048] For example, in this embodiment, the downstream controller 30 is fixedly disposed inside the second skid 72, providing integrated control and improving operational efficiency. In other embodiments, the downstream controller 30 may also be a movable portable remote controller; its specific form is not limited here.

[0049] It should be noted that the first shut-off valve 11, the second shut-off valve 4, the third shut-off valve 21, the fourth shut-off valve 31 and the vent valve 52 mentioned above are all valve structures commonly used in the field. They can be opened and closed by mechanical structure, or remotely opened and closed by upstream controller 20 and downstream controller 30. Their working principle and specific structure will not be described in detail here.

[0050] Specifically, the pipeline valve chamber also includes a suction mechanism. The connecting segment 6 is provided with an upstream suction channel 61, and the suction end of the suction mechanism can be connected to the opening of the upstream suction channel 61. With the above-mentioned suction mechanism, when it is necessary to recover oil and gas in the upstream pipeline, the first shut-off valve 11, the second shut-off valve 4, and the vent valve 52 can be closed, and the third shut-off valve 21 can be opened. Then, the suction end of the suction mechanism can be connected to the opening of the upstream suction channel 61 to recover the oil and gas in the upstream pipeline.

[0051] Specifically, the downstream branch segment 3 is equipped with a downstream suction channel 32, and the suction end of the suction mechanism can be connected to the opening of the downstream suction channel 32. With the above configuration, when it is necessary to recover oil and gas in the downstream pipeline, the first shut-off valve 11, the second shut-off valve 4, and the vent valve 52 can be closed, and the fourth shut-off valve 31 can be opened. Then, the suction end of the suction mechanism can be connected to the opening of the upstream suction channel 61 to recover the oil and gas in the downstream pipeline.

[0052] It should be noted that the suction mechanism is a compressor or vacuum pump structure commonly used in this field, and its working principle and specific structure will not be described in detail here.

[0053] This utility model also provides an oil and gas pipeline, which includes the aforementioned pipeline valve chamber. It is understood that this oil and gas pipeline possesses all the beneficial effects of the aforementioned pipeline valve chamber, which will not be elaborated upon here.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pipeline valve chamber, characterized in that, include: The main pipeline segment (1) is connected to the upstream pipeline at one end and to the downstream pipeline at the other end. The main pipeline segment (1) is equipped with a first shut-off valve (11). The upstream branch segment (2) is connected at one end to the main pipeline segment (1), and the upstream branch segment (2) is located on the side of the first shut-off valve (11) near the upstream pipeline. The downstream branch segment (3) is connected to the main pipeline segment (1). The downstream branch segment (3) is located on the side of the first shut-off valve (11) near the downstream pipeline. The upstream branch segment (2) is connected to the downstream branch segment (3). The second shut-off valve (4) is located between the upstream branch segment (2) and the downstream branch segment (3); The venting section (5) includes a venting pipe (51) and a venting valve (52), wherein the venting pipe (51) is connected to the upstream branch section (2), and the venting valve (52) is disposed on the venting pipe (51).

2. The pipeline valve chamber according to claim 1, characterized in that, The upstream branch segment (2) is equipped with a third shut-off valve (21); The downstream branch segment (3) is equipped with a fourth shut-off valve (31).

3. The pipeline valve chamber according to claim 2, characterized in that, It also includes an upstream controller (20) which is communicatively connected to the first shut-off valve (11), the second shut-off valve (4), the third shut-off valve (21), and the vent valve (52).

4. The pipeline valve chamber according to claim 2, characterized in that, It also includes a downstream controller (30) which is communicatively connected to the first shut-off valve (11), the second shut-off valve (4) and the fourth shut-off valve (31).

5. The pipeline valve chamber according to claim 1, characterized in that, It also includes a connecting segment (6), one end of which is connected to the upstream branch segment (2) and the other end is connected to the downstream branch segment (3), and the second shut-off valve (4) is disposed on the connecting segment (6).

6. The pipeline valve chamber according to claim 5, characterized in that, It also includes a skid-mounted structure (7), which comprises: The first skid block (71) is detachably disposed on the outer periphery of the upstream branch segment (2); The second skid block (72) is detachably disposed on the outer periphery of the downstream branch segment (3); The third skid block (73) is detachably disposed on the outer periphery of the connecting segment (6).

7. The pipeline valve chamber according to claim 6, characterized in that, It also includes a suction mechanism, wherein the connecting segment (6) is provided with an upstream suction channel (61), and the suction end of the suction mechanism can be connected to the opening of the upstream suction channel (61).

8. The pipeline valve chamber according to claim 7, characterized in that, The downstream branch segment (3) is provided with a downstream suction channel (32), and the suction end of the suction mechanism can be connected to the opening of the downstream suction channel (32).

9. An oil and gas pipeline, characterized in that, Includes the pipe valve chamber described in any one of claims 1-8 above.

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