Strong-sealing throttle valve for oil exploitation

Abstract

The utility model discloses a strong sealing throttle valve for oil exploitation, which comprises a throttle valve used for oil exploitation, the throttle valve comprises a valve cover and a valve seat, the valve cover and the valve seat are connected through a connecting screw rod, a sealing gasket is arranged between the valve cover and the valve seat, the valve seat is provided with a strong sealing assembly at the lower part of the sealing gasket, and the strong sealing assembly is provided with a sealing gasket. The strong sealing assembly is located between the valve seat and the sealing gasket, so that the valve seat conducts strong sealing on the sealing gasket, the valve deck and the valve seat through the strong sealing assembly. The sealing gasket and the strong sealing assembly are arranged between the valve cover and the valve seat, and the strong sealing assembly comprises the sealing groove, the adjusting plate, the sealing spring and the like, so that the sealing gasket is tightly attached to the connecting face of the valve, oil media are effectively prevented from leaking from a connecting gap between the valve cover and the valve seat, and the sealing effect is ensured; the risk of oil leakage is greatly reduced, and the safety of oil exploitation operation and effective utilization of resources are guaranteed.

Description

Technical Field

[0001] This utility model relates to a strong sealing throttling valve for oil extraction. Background Technology

[0002] In the oil extraction process, throttle valves are one of the key control devices.

[0003] Traditional oil extraction throttle valves typically consist of a valve cover and a valve seat connected by a connecting screw, and their sealing design mostly uses a single sealing gasket. This single-gasket sealing method is difficult to ensure the sealing performance between the valve cover and the valve seat. In actual operation, due to the harsh environment of oil extraction, facing complex conditions such as high pressure, high temperature, and media corrosion, the single sealing gasket is prone to deformation or damage under prolonged stress, leading to seal failure and oil leakage.

[0004] Furthermore, a single sealing gasket cannot be effectively adjusted according to changes in operating conditions, making it difficult to adapt to fluctuations in parameters such as pressure and temperature during oil extraction. It cannot maintain a good sealing condition continuously, thus limiting its applicability and reliability in different extraction stages and under different oil well conditions, and increasing equipment maintenance costs and replacement frequency.

[0005] Therefore, a strong-sealing throttling valve for oil extraction is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a strong-sealing throttle valve for oil extraction, so as to solve the problem mentioned in the background art that the sealing design of traditional throttle valves is difficult to maintain a good sealing state continuously.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a strong-sealing throttle valve for oil extraction, comprising a throttle valve for oil extraction, the throttle valve including a valve cover and a valve seat, the valve cover and the valve seat being connected by a connecting screw, a sealing gasket being provided between the valve cover and the valve seat, and a strong-sealing component being provided on the valve seat below the sealing gasket.

[0008] The strong sealing assembly is located between the valve seat and the sealing gasket, so that the valve seat can form a strong seal between the sealing gasket and the valve cover and valve seat through the strong sealing assembly.

[0009] Preferably, the strong sealing assembly includes a sealing groove formed on the upper part of the valve seat, an adjusting plate is provided inside the sealing groove, the adjusting plate is located directly below the sealing gasket, and a sealing spring is provided around the sealing groove, with the sealing spring located between the adjusting plate and the sealing gasket.

[0010] Preferably, the shape of the sealing gasket matches the connecting surface of the valve cover and the valve seat, and a gasket is provided at the lower part of the sealing gasket, and the shape of the gasket matches the sealing groove.

[0011] Preferably, the sealing spring is sleeved on the outer periphery of the connecting screw, and the top end of the sealing spring abuts against the pad.

[0012] Preferably, the adjusting plate has threaded grooves around its perimeter, and the threaded grooves are located at the connection channel between the valve seat and the connecting screw, so that the connecting screw is connected to the threaded groove through the connection channel.

[0013] Preferably, the threaded grooves around the adjusting plate cooperate with the connecting screw to allow the connecting screw to move linearly within the sealing groove via the threaded connection to the adjusting plate.

[0014] Preferably, the valve cover has connecting holes around its perimeter for inserting connecting screws, and the connecting holes are located directly above the valve seat connecting channel, so that the connecting screws can be inserted into the connecting holes through the connecting channel.

[0015] Preferably, a nut is provided at the tail end of the connecting screw, and the nut is located on the valve cover so that the nut can move on the outer periphery of the connecting screw through the thread.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention provides a sealing gasket and a strong sealing component, including a sealing groove, an adjusting plate, and a sealing spring, between the valve cover and the valve seat. This ensures that the sealing gasket fits tightly against the valve's connection surface, effectively preventing oil medium from leaking from the connection gap between the valve cover and the valve seat. This guarantees a sealing effect, significantly reduces the risk of oil leakage, and protects the safety of oil extraction operations and the effective utilization of resources.

[0018] The structural design of the strong sealing component allows the sealing spring to adjust and buffer accordingly when pressure, temperature, and other operating conditions change during oil extraction. This ensures that the sealing gasket remains tightly fitted to the connection surface, maintaining a good sealing condition. It adapts to changes in operating conditions at different extraction stages and under different well conditions, improving the applicability and reliability of the throttle valve and reducing equipment failures and maintenance frequency caused by changes in operating conditions.

[0019] The threaded grooves around the adjusting plate cooperate with the connecting screw. The connecting screw allows the adjusting plate to move linearly within the sealing groove. The movement of the adjusting plate within the sealing groove compresses the sealing spring, adjusting the compression force of the sealing spring, making the connection between the valve cover and the valve seat tighter and more stable, effectively improving the tightness of the connection between the valve cover and the valve seat.

[0020] By tightening the nut, the connecting screw can drive the adjusting plate to move linearly within the sealing groove, thereby adjusting the compression of the sealing spring and controlling the sealing pressure. This allows for flexible adjustment based on actual usage conditions, ensuring long-lasting and effective sealing performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0023] Figure 3 This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the valve seat structure according to an embodiment of the present utility model;

[0025] Figure 5 This is a schematic diagram of the sealing gasket structure according to an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the adjustment plate structure according to an embodiment of the present utility model.

[0027] In the diagram: 1. Throttling valve; 11. Valve cover; 111. Connecting hole; 12. Valve seat; 2. Connecting screw; 3. Sealing gasket; 31. Gasket; 4. Strong sealing assembly; 41. Sealing groove; 42. Adjusting plate; 421. Threaded groove; 43. Sealing spring; 5. Nut. Detailed Implementation

[0028] To address the problem of traditional throttle valves' inability to maintain a consistently good seal, this invention provides a strong-seal throttle valve for oil extraction. The technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0029] Please see Figure 1-6This utility model provides a strong-sealing throttling valve for oil extraction, including a throttling valve 1 for oil extraction. The throttling valve 1 includes a valve cover 11 and a valve seat 12. The valve cover 11 and the valve seat 12 are connected by a connecting screw 2. A sealing gasket 3 is provided between the valve cover 11 and the valve seat 12. A strong-sealing component 4 is provided on the lower part of the valve seat 12 below the sealing gasket 3. The strong-sealing component 4 includes a sealing groove 41 opened on the upper part of the valve seat 12. An adjusting plate 42 is provided inside the sealing groove 41. The adjusting plate 42 is located directly below the sealing gasket 3. A sealing spring 43 is provided around the sealing groove 41, and the sealing spring 43 is located between the adjusting plate 42 and the sealing gasket 3. The sealing spring 43 is sleeved on the outer periphery of the connecting screw 2, and the top of the sealing spring 43 abuts against the gasket 31. The adjusting plate 42 has threaded grooves 421 around its perimeter, and these grooves 421 are located at the connection channel between the valve seat 12 and the connecting screw 2, so that the connecting screw 2 can be connected to the threaded grooves 421 through the connection channel. The threaded grooves 421 around the adjusting plate 42 and the connecting screw 2 cooperate with each other, so that the connecting screw 2 can move linearly within the sealing groove 41 through the threaded connection to the adjusting plate 42.

[0030] The shape of the sealing gasket 3 matches the connecting surface of the valve cover 11 and the valve seat 12. A pad 31 is provided at the lower part of the sealing gasket 3, and the shape of the pad 31 matches the sealing groove 41.

[0031] The valve cover 11 has connecting holes 111 around its perimeter for inserting the connecting screw 2, and the connecting holes 111 are located directly above the connecting channel of the valve seat 12, so that the connecting screw 2 can be inserted into the connecting hole 111 through the connecting channel.

[0032] A nut 5 is provided at the tail end of the connecting screw 2, and the nut 5 is located on the valve cover 11 so that the nut 5 can move on the outer periphery of the connecting screw 2 through the thread.

[0033] The strong sealing component 4 is located between the valve seat 12 and the sealing gasket 3, so that the valve seat 12 can form a strong seal between the sealing gasket 3 and the valve cover 11 and the valve seat 12 through the strong sealing component 4.

[0034] The working principle of the oil extraction strong-sealing throttle valve provided by this utility model is as follows:

[0035] Loosen nut 5 and then tighten connecting screw 2. The rotation of connecting screw 2, through nut 5, secures valve cover 11 and valve seat 12. At the same time, connecting screw 2 drives adjusting plate 42 to move linearly within sealing groove 41. In turn, adjusting plate 42 compresses sealing spring 43, adjusting the compression degree of sealing spring 43, thereby controlling sealing pressure.

[0036] The sealing pressure can be adjusted according to different working conditions and sealing requirements to ensure that the throttle valve 1 maintains reliable sealing performance under various complex working conditions.

[0037] Faced with changes in parameters such as pressure, the sealing spring 43 can automatically compensate for these changes. When the fluid pressure inside the throttle valve 1 increases or decreases, the fluid pressure acts on the sealing gasket 3, attempting to move the sealing gasket 3. At this time, the elastic force of the sealing spring 43 ensures a tight fit between the sealing gasket 3 and the valve cover 11 and valve seat 12, maintaining a good sealing effect and preventing the appearance of sealing gaps due to pressure reduction.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing throttle valve for oil extraction, comprising a throttle valve (1) for oil extraction, the throttle valve (1) comprising a valve cover (11) and a valve seat (12), the valve cover (11) and the valve seat (12) being connected by a connecting screw (2), characterized in that: A sealing gasket (3) is provided between the valve cover (11) and the valve seat (12), and a strong sealing component (4) is provided on the valve seat (12) below the sealing gasket (3). The strong sealing component (4) is located between the valve seat (12) and the sealing gasket (3) so that the valve seat (12) can strongly seal the sealing gasket (3) with the valve cover (11) and the valve seat (12) through the strong sealing component (4).

2. The oil extraction strong-sealing throttle valve according to claim 1, characterized in that: The strong sealing assembly (4) includes a sealing groove (41) opened on the upper part of the valve seat (12). An adjusting plate (42) is provided inside the sealing groove (41). The adjusting plate (42) is located directly below the sealing gasket (3). A sealing spring (43) is provided around the inside of the sealing groove (41), and the sealing spring (43) is located between the adjusting plate (42) and the sealing gasket (3).

3. The oil extraction strong-sealing throttle valve according to claim 2, characterized in that: The shape of the sealing gasket (3) matches the connecting surface of the valve cover (11) and the valve seat (12). A pad (31) is provided at the lower part of the sealing gasket (3), and the shape of the pad (31) matches the sealing groove (41).

4. The oil extraction strong-sealing throttle valve according to claim 3, characterized in that: The sealing spring (43) is sleeved on the outer periphery of the connecting screw (2), and the top end of the sealing spring (43) abuts against the pad (31).

5. The oil extraction strong-sealing throttle valve according to claim 4, characterized in that: The adjusting plate (42) has a threaded groove (421) around its perimeter, and the threaded groove (421) is located at the connection channel between the valve seat (12) and the connecting screw (2), so that the connecting screw (2) is connected to the threaded groove (421) through the connection channel.

6. The oil extraction strong-sealing throttle valve according to claim 5, characterized in that: The threaded grooves (421) around the adjusting plate (42) cooperate with the connecting screw (2) so that the connecting screw (2) moves linearly in the sealing groove (41) through the threaded connection adjusting plate (42).

7. The oil extraction strong-sealing throttle valve according to claim 6, characterized in that: The valve cover (11) has connecting holes (111) around its perimeter for inserting the connecting screw (2), and the connecting holes (111) are located directly above the connecting channel of the valve seat (12) so that the connecting screw (2) can be inserted into the connecting hole (111) through the connecting channel.

8. The oil extraction strong-sealing throttle valve according to claim 7, characterized in that: A nut (5) is provided at the tail end of the connecting screw (2), and the nut (5) is located on the valve cover (11) so that the nut (5) can move on the outer periphery of the connecting screw (2) through the thread.

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