High-sealing multi-channel connecting valve for oilfield exploitation

Abstract

The utility model belongs to the technical field of oilfield exploitation, and particularly relates to a high-sealing oilfield exploitation multi-channel connecting valve which comprises a main pipeline, valve bodies are arranged on one side of the main pipeline at equal intervals, one end of each valve body is fixedly communicated with the main pipeline, and the other end of each valve body is fixedly communicated with a connecting pipe. Through the arrangement of the main pipeline, the valve body, the connecting pipe, the oil conveying pipe, the sealing sleeve and the secondary sealing assembly, in the process of using the multi-channel connecting valve for oilfield exploitation, after the oil conveying pipe and the connecting pipe are communicated and fixed, under the cooperation of the sealing sleeve and the secondary sealing assembly, the double-sealing protection effect on the connecting position of the oil conveying pipe and the connecting pipe can be achieved; and under the cooperation of the fixing ring, the clamping groove and the fixing assembly, the connecting pipe and the oil conveying pipe are connected and fixed in a spring clamping mode, and therefore the connecting pipe and the oil conveying pipe can be more convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield exploitation, and particularly relates to a multi-channel connection valve for oilfield exploitation with high sealing performance. Background Technique

[0002] Oilfield exploitation refers to the act of excavating and extracting oil in places where oil is stored. During the process of oil exploitation, the driving mode of oil and gas flowing from the reservoir into the bottom of the well and then rising from the bottom of the well to the wellhead. During oilfield exploitation, it is generally transported through pipelines. At this time, a multi-channel connection valve is required to control the pipelines. When the multi-channel connection valve for oilfield exploitation is in use, in order to avoid leakage at the connection, a sealing gasket is generally arranged between the connection valve and the oil pipeline to play a role in preventing leakage. Since the multi-channel connection valve for oilfield exploitation needs to bear a certain internal pipe pressure during use, the sealing performance requirements for the connection are relatively high. However, only setting a sealing gasket between the connection valve and the oil pipeline for sealing has a poor sealing effect, thus increasing the possibility of leakage at the connection between the connection valve and the oil pipeline. Therefore, we propose a multi-channel connection valve for oilfield exploitation with high sealing performance to solve the above problems. Content of the Utility Model

[0003] (1) Technical Problem Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a multi-channel connection valve for oilfield exploitation with high sealing performance, and solves the problems raised in the above background technique.

[0005] (2) Technical Solution

[0006] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0007] A multi-channel connection valve for oilfield exploitation with high sealing performance, including a main pipeline. One side of the main pipeline is equidistantly provided with valve bodies. One end of each valve body is fixedly connected and communicated with the main pipeline. The other end of each valve body is fixedly connected and communicated with a connecting pipe. One end of each connecting pipe is inserted with an oil pipeline. Sealing sleeves are fixedly arranged on the inner walls of the connecting pipes, and the sealing sleeves are respectively in close fit with the surfaces of the corresponding oil pipelines. Secondary sealing components are arranged on the surfaces of the connecting pipes. Fixing rings are fixedly arranged on the surfaces of the oil pipelines. Two clamping grooves are respectively opened on one side wall of each fixing ring. Fixing components for clamping the clamping grooves are arranged on the surfaces of the connecting pipes.

[0008] Further, the secondary sealing assembly includes a support ring fixed on the surface of the connecting pipe. Four counterbores are formed in one side wall of the support ring, and a first spring is fixed inside each of the four counterbores. The other ends of the first springs are all fixed with circular blocks adapted to the counterbores formed in the support ring. One ends of the four circular blocks are fixed with a sealing ring. A sealing ring adapted to the oil pipeline is fixed on the surface of the sealing ring, and the sealing ring is in close fit with one end of the oil pipeline.

[0009] Further, the fixing assembly includes a mounting seat fixed on the surface of the connecting pipe. Two rotating shafts are rotatably connected between the inner walls on both sides of the mounting seat through bearings. Rotating frames are fixed on the rotating shafts. Blocks adapted to the card slots are slidably connected to the surfaces of the rotating frames. The blocks are respectively clamped inside the corresponding card slots. Moving rods are fixed on one side walls of the blocks. The other ends of the moving rods respectively slide through the corresponding rotating frames and extend to one side thereof. Two stoppers are fixed on the surfaces of the rotating frames. Second springs are fixed on one side walls of the stoppers. The other ends of the second springs are respectively fixedly connected to the corresponding blocks.

[0010] Further, pulling frames are fixed on one ends of the moving rods, and chamfers are arranged on the surfaces of the pulling frames.

[0011] Further, a first protective plate is fixed on the surface of the connecting pipe. A telescopic protective cover is fixed on one side wall of the first protective plate. A second protective plate is fixed on the surface of the oil pipeline. Mounting rings are fixed inside the counterbores formed on one side of the second protective plate through bolts. The other ends of the telescopic protective covers are respectively fixedly connected to the corresponding mounting rings.

[0012] Further, flange plates are fixed at both ends of the main pipeline.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present utility model provides a multi-channel connection valve for oilfield exploitation with high sealing performance, and has the following beneficial effects:

[0015] In the present utility model, by providing the main pipeline, the valve body, the connecting pipe, the oil pipeline, the sealing sleeve and the secondary sealing assembly, during the use of this multi-channel connection valve for oilfield exploitation, after the oil pipeline is connected and fixed to the connecting pipe, with the cooperation of the sealing sleeve and the secondary sealing assembly, a double-sealing protection can be achieved for the connection between the two, thereby avoiding the occurrence of oil leakage at the connection between the two. And with the cooperation of the fixing ring, the card slot and the fixing assembly, the connecting pipe and the oil pipeline are connected and fixed in a spring clamping manner, so that the installation and disassembly of the connecting pipe and the oil pipeline will be more convenient. Description of the Drawings

[0016] Figure 1Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Schematic diagram of the connecting pipe structure of the present utility model;

[0018] Figure 3 Schematic diagram of the secondary sealing assembly structure of the present utility model;

[0019] Figure 4 Schematic diagram of the oil delivery pipe structure of the present utility model;

[0020] Figure 5 Schematic diagram of the fixing assembly structure of the present utility model.

[0021] In the figure: 1, main pipeline; 2, valve body; 3, connecting pipe; 4, oil delivery pipe; 5, sealing sleeve; 6, secondary sealing assembly; 601, support ring; 602, spring one; 603, circular block; 604, plugging ring; 605, sealing ring; 7, fixing ring; 8, card slot; 9, fixing assembly; 901, mounting seat; 902, rotating shaft; 903, rotating frame; 904, clamping block; 905, moving rod; 906, stop block; 907, spring two; 908, pulling frame; 10, protection plate one; 11, telescopic protective cover; 12, protection plate two; 13, mounting ring; 14, flange. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, a highly sealed multi-channel connection valve for oilfield exploitation proposed by an embodiment of the present utility model includes a main pipeline 1. Flange plates 14 are fixed at both ends of the main pipeline 1, which makes it more convenient to connect and fix the main pipeline 1 to the installation pipeline. A plurality of valve bodies 2 are equidistantly arranged on one side of the main pipeline 1. One end of each valve body 2 is fixedly connected to the main pipeline 1, and the other end of each valve body 2 is fixedly connected to a connecting pipe 3. An oil delivery pipe 4 is inserted into one end of each connecting pipe 3. A sealing sleeve 5 is fixed to the inner wall of each connecting pipe 3, and the sealing sleeve 5 is in close contact with the surface of the corresponding oil delivery pipe 4. A secondary sealing assembly 6 is arranged on the surface of each connecting pipe 3. A fixing ring 7 is fixed to the surface of each oil delivery pipe 4. Two clamping grooves 8 are formed in one side wall of each fixing ring 7. A fixing assembly 9 for clamping the clamping groove 8 is arranged on the surface of each connecting pipe 3. During the use of this multi-channel connection valve for oilfield exploitation, after the oil delivery pipe 4 is connected and fixed to the connecting pipe 3, the sealing sleeve 5 can provide a primary sealing protection effect. And when the two are connected, the oil delivery pipe 4 will squeeze the secondary sealing assembly 6 and be in close contact with it. At this time, a secondary sealing protection effect can be achieved for the connection between the two. When it is necessary to separate the oil delivery pipe 4 from the connecting pipe 3 later, the fixing assembly 9 at the corresponding position can be operated to release the restriction on the fixing ring 7 of the oil delivery pipe 4, and then the connecting pipe 3 and the oil delivery pipe 4 can be separated.

[0025] As Figure 3 shown, in some embodiments, the secondary sealing assembly 6 includes a support ring 601 fixed to the surface of the connecting pipe 3. A first spring 602 is fixed inside each of the four counterbores formed in one side wall of the support ring 601. The other end of each first spring 602 is fixed to a circular block 603 adapted to the counterbore formed in the support ring 601. A sealing ring 604 is fixed to one end of the four circular blocks 603. A sealing ring 605 adapted to the oil delivery pipe 4 is fixed to the surface of the sealing ring 604. The sealing ring 605 is in close contact with one end of the oil delivery pipe 4. During use, when the oil delivery pipe 4 is inserted and fitted with the connecting pipe 3, one end of the oil delivery pipe 4 will squeeze the sealing ring 604. After the sealing ring 604 moves, it will squeeze the first spring 602 through the circular block 603. Then, under the action of the compressed first spring 602, the sealing ring 605 can be made to fit more tightly with one end of the oil delivery pipe 4, so as to provide a sealing protection effect for the connection between the oil delivery pipe 4 and the connecting pipe 3.

[0026] As Figure 5As shown, in some embodiments, the fixing component 9 includes a mounting seat 901 fixed on the surface of the connecting pipe 3. Between the inner walls on both sides of the mounting seat 901, two rotating shafts 902 are rotatably connected through bearings. Rotating frames 903 are fixed on the rotating shafts 902. On the surfaces of the rotating frames 903, clamping blocks 904 adapted to the card slots 8 are slidably connected. The clamping blocks 904 are respectively clamped inside the corresponding card slots 8. On one side wall of each clamping block 904, a moving rod 905 is fixed. The other ends of the moving rods 905 respectively slide through the corresponding rotating frames 903 and extend to one side thereof. On one end of each moving rod 905, a pulling frame 908 is fixed. Chamfers are provided on the surfaces of the pulling frames 908, which facilitates the staff to pull the clamping blocks 904 to disengage them from the card slots 8. The chamfers provided on the surfaces of the pulling frames 908 can make the staff's hands more comfortable. On the surfaces of the rotating frames 903, two stoppers 906 are fixed. On one side wall of each stopper 906, a second spring 907 is fixed. The other ends of the second springs 907 are respectively fixedly connected to the corresponding clamping blocks 904. During use, by pulling the moving rods 905 to move, the moving rods 905 will drive the clamping blocks 904 to move after moving. After the clamping blocks 904 move, they will disengage from the card slots 8. Then, the rotating frames 903 can be rotated to one side, so that after the restriction on the fixing ring 7 on the oil delivery pipe 4 is released, the oil delivery pipe 4 can then be separated from the connecting pipe 3. During installation, after one end of the oil delivery pipe 4 and the connecting pipe 3 are inserted, when the clamping blocks 904 are pulled to the maximum extent, the rotating frames 903 can be operated to be in a horizontal state. When the clamping blocks 904 are flush with the card slots 8, release the clamping blocks 904. Finally, under the reset force of the stretched second springs 907, the clamping blocks 904 can be clamped inside the card slots 8, and at this time, the oil delivery pipe 4 and the connecting pipe 3 can be connected and fixed.

[0027] As Figure 2 As shown, in some embodiments, protection plates 10 are fixed on the surfaces of the connecting pipes 3. On one side wall of each protection plate 10, a telescopic protective cover 11 is fixed. Protection plates 12 are fixed on the surfaces of the oil delivery pipes 4. Inside the sinking grooves opened on one side of each protection plate 12, mounting rings 13 are fixed by bolts. The other ends of the telescopic protective covers 11 are respectively fixedly connected to the corresponding mounting rings 13, which can play a protective role at the connection between the connecting pipe 3 and the oil delivery pipe 4, and prevent the environment from polluting and corroding the connection between the two.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highly sealed multi-channel connecting valve for oilfield exploitation, comprising a main pipeline (1), characterized in that: A valve body (2) is equidistantly arranged on one side of the main pipeline (1), one end of the valve body (2) is connected and fixed to the main pipeline (1), the other end of the valve body (2) is connected and fixed to a connecting pipe (3), one end of the connecting pipe (3) is plugged with an oil pipeline (4), a sealing sleeve (5) is fixed to the inner wall of the connecting pipe (3), the sealing sleeve (5) is tightly fitted with the surface of the corresponding oil pipeline (4), a secondary sealing component (6) is arranged on the surface of the connecting pipe (3), a fixing ring (7) is fixed on the surface of the oil pipeline (4), two grooves (8) are provided on one side wall of the fixing ring (7), and a fixing component (9) for engaging the groove (8) is arranged on the surface of the connecting pipe (3).

2. A highly sealed multi-channel connecting valve for oilfield exploitation according to claim 1, characterized in that: The secondary sealing assembly (6) comprises a support ring (601) fixed on the surface of the connecting pipe (3), four countersunk holes opened on one side wall of the support ring (601) are each fixed with a spring 1 (602), the other end of the spring 1 (602) is each fixed with a circular block (603) adapted to the countersunk hole opened on the support ring (601), one end of the four circular blocks (603) is fixed with a sealing ring (604), the surface of the sealing ring (604) is fixed with a sealing ring (605) adapted to the oil pipeline (4), and the sealing ring (605) is tightly fitted with one end of the oil pipeline (4).

3. The highly sealed multi-channel connecting valve for oilfield exploitation according to claim 1, characterized in that: The fixing assembly (9) comprises a mounting seat (901) fixed on the surface of the connecting pipe (3); two rotating shafts (902) are rotatably connected between the inner walls on both sides of the mounting seat (901) via bearings; a rotating frame (903) is fixed on each of the rotating shafts (902); a clamping block (904) adapted to the clamping slot (8) is slidably connected to the surface of the rotating frame (903); the clamping block (904) is respectively clamped in the inside of the corresponding clamping slot (8); a moving rod (905) is fixed to one side wall of the clamping block (904); the other end of the moving rod (905) slides through the corresponding rotating frame (903) and extends to one side thereof; two stoppers (906) are fixed to the surface of the rotating frame (903); a spring 2 (907) is fixed to one side wall of the stopper (906); the other end of the spring 2 (907) is respectively fixedly connected to the corresponding clamping block (904).

4. The highly sealed multi-channel connecting valve for oilfield exploitation according to claim 3 is characterized in that: A pulling frame (908) is fixed to one end of the moving rod (905), and a chamfer is arranged on the surface of the pulling frame (908).

5. The highly sealed multi-channel connecting valve for oilfield exploitation according to claim 1, characterized in that: A protective plate 1 (10) is fixed on the surface of the connecting pipe (3), a telescopic protective cover (11) is fixed on one side wall of the protective plate 1 (10), a protective plate 2 (12) is fixed on the surface of the oil delivery pipe (4), a mounting ring (13) is fixed inside a recessed groove opened on one side of the protective plate 2 (12) by bolts, and the other end of the telescopic protective cover (11) is fixedly connected to the corresponding mounting ring (13).

6. The highly sealed multi-channel connecting valve for oilfield exploitation according to claim 1, characterized in that: Flange plates (14) are fixed at both ends of the main pipeline (1).

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