Self-adjusting oil and gas well pressure valve

Abstract

The utility model discloses a self-adjusting oil-gas well pressure valve, which relates to the technical field of pressure valves, and comprises a valve body, flanges at two ends of the valve body are connected with two oil-gas well pipelines, a channel is arranged in the valve body, a slot is arranged on the inner wall of the channel in a surrounding manner, a baffle is arranged in the slot in a sliding manner, and the baffle is connected with the valve body. A cavity is formed in the upper portion of the inserting groove, a driving mechanism is arranged in the cavity, and the baffle moves through the driving mechanism. By means of the self-adjusting mechanism arranged in the sliding groove, when the internal pressure of the oil and gas well pipeline is increased, the sliding block can be squeezed and slide at the first time, then the rack can be driven to move, then the rack drives the gear to rotate, and then the baffle can move upwards, so that the internal pressure of the oil and gas pipeline can be reduced, and the oil and gas well pipeline can be protected. And a worker does not need to measure and adjust the pressure, and the first-time response can be realized.

Description

Technical Field

[0001] This utility model relates to the field of pressure valve technology, specifically to a self-regulating oil and gas well pressure valve. Background Technology

[0002] Pressure valves are key devices used to control pressure in various fluid transmission systems. They can regulate and control the pressure within the system by opening, closing, or adjusting the flow area of ​​the channel. In the process of oil and gas well development, pressure valves are crucial equipment for controlling oil and gas flow and ensuring safe production.

[0003] Among them, a pressure valve body with publication number CN212775646U includes a body, a reinforcing band connected to the outer wall of the body, and a rotating shaft installed at the top of the body. An opening and closing mechanism is connected to the inner wall of the rotating shaft. The opening and closing mechanism includes a rotating rod, and a limit block is installed at the bottom of the rotating rod. A first spring is sleeved on the outer wall of the limit block, and a baffle is connected to the bottom end of the rotating rod. A second spring is installed at the bottom end of the rotating rod, and the central axis of the rotating rod coincides with the central axis of the baffle.

[0004] However, most existing oil and gas well pressure valves are manually adjusted or controlled by simple mechanical means. Manual adjustment requires operators to monitor pressure data in real time and manually adjust the valve opening based on experience. This is not only labor-intensive, but also makes it difficult to respond quickly and accurately to sudden pressure changes. Utility Model Content

[0005] In view of the problems existing in the current pressure valve body, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a self-regulating oil and gas well pressure valve, which solves the problem that most existing oil and gas well pressure valves adopt manual adjustment or simple mechanical control. Manual adjustment requires operators to monitor pressure data in real time and manually adjust the valve opening based on experience, which is not only labor-intensive, but also difficult to respond quickly and accurately to sudden pressure changes.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A self-regulating oil and gas well pressure valve includes a valve body with flanges at both ends connecting to two oil and gas well pipelines. The valve body has an internal channel with slots circumferentially formed on the inner wall of the channel. A baffle is slidably disposed inside the slots. A cavity is formed above the slots, and a drive mechanism is disposed inside the cavity. The baffle moves via the drive mechanism. A groove is formed at one end of the valve body, and a self-regulating mechanism is disposed inside the groove, the self-regulating mechanism being matched with the drive mechanism.

[0009] Preferably, the driving mechanism includes a lead screw and a gear. The lead screw is rotatably connected to the inside of the slot. The upper end of the baffle has an internal threaded hole. The baffle is threaded onto the wall of the lead screw through the internal threaded hole. One end of the lead screw passes through one side of the slot and extends into the inside of the cavity. The gear is fixedly connected to the wall of the lead screw.

[0010] Preferably, the self-adjusting mechanism includes a slider, a rack, and a spring. A through hole is provided between the groove and the cavity. The rack is slidably disposed inside the through hole. The slider is slidably disposed inside the groove and fixedly connected to one end of the rack. The spring is slidably sleeved on the rod wall of the rack. The rack meshes with a gear.

[0011] Preferably, a limiting groove is provided on both sides of the slot, and a limiting block is slidably provided inside each of the two limiting grooves. The two limiting blocks are symmetrically and fixedly connected to both sides of the baffle.

[0012] Preferably, a sealing groove is formed around the outer surface of the slider, and a rubber sealing ring is fitted inside the sealing groove.

[0013] Preferably, a slot is provided on one side of the cavity, and the slot matches the rack.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model, through a self-adjusting mechanism set inside the chute, allows the slider to be squeezed and slide immediately when the internal pressure of the oil and gas well pipeline increases. Subsequently, it can drive the rack to move, and then the rack drives the gear to rotate. Next, the baffle can be moved up, thereby reducing the internal pressure of the oil and gas pipeline. Moreover, it can react immediately without the need for staff to measure and adjust the pressure.

[0016] 2. In this utility model, the sealing rubber ring set inside the sealing groove can improve the sealing between the slider 7 and the groove, so as to prevent pressure leakage and prevent the baffle from moving immediately when the pressure is too high. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0020] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of part B.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Valve body; 2. Oil and gas well pipeline; 3. Channel; 4. Baffle; 5. Screw; 6. Gear; 7. Slider; 8. Rack; 9. Spring; 10. Limiting block; 11. Rubber sealing ring. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a self-regulating oil and gas well pressure valve.

[0025] Example 1

[0026] Reference Figure 1-3 A self-regulating oil and gas well pressure valve includes a valve body 1, with flanges at both ends of the valve body 1 connecting two oil and gas well pipes 2. The valve body 1 has an internal channel 3, with a slot circumferentially formed on the inner wall of the channel 3. A baffle 4 is slidably disposed inside the slot. A cavity is formed above the slot, and a driving mechanism is disposed inside the cavity. The baffle 4 moves via the driving mechanism, which includes a lead screw 5 and a gear 6. The lead screw 5 is rotatably connected to the inside of the slot. The upper end of the baffle 4 has an internal threaded hole, and the baffle 4 is threadedly fitted onto the wall of the lead screw 5 through the internal threaded hole. One end of the lead screw 5 penetrates one side of the slot and extends into the inside of the cavity. The gear 6 is fixedly connected to the wall of the lead screw 5.

[0027] Reference Figure 1-3 The valve body 1 has a sliding groove at one end, and a self-adjusting mechanism is provided inside the sliding groove. The self-adjusting mechanism is matched with the driving mechanism. The self-adjusting mechanism includes a slider 7, a rack 8 and a spring 9. A through hole is provided between the sliding groove and the cavity. The rack 8 is slidably disposed inside the through hole. The slider 7 is slidably disposed inside the sliding groove and fixedly connected to one end of the rack 8. The spring 9 is slidably sleeved on the rod wall of the rack 8. The rack 8 meshes with the gear 6.

[0028] When the internal pressure of the oil and gas well pipeline 2 increases, the slider 7 can be squeezed and slide immediately, which can then drive the rack 8 to move. Subsequently, the rack 8 drives the gear 6 to rotate, which can then cause the baffle 4 to move upward, thereby reducing the internal pressure of the oil and gas pipeline 2.

[0029] Example 2

[0030] Based on Example 1, referring to Figure 1-2 Limiting grooves are provided on both sides of the slot, and limiting blocks 10 are slidably arranged inside the two limiting grooves. The two limiting blocks 10 are symmetrically fixedly connected to both sides of the baffle 4.

[0031] Two limiting blocks 10 can be used to limit the movement, thereby preventing the baffle 4 from separating from the lead screw 5.

[0032] Example 3

[0033] Based on Example 1, referring to Figure 1-2 The outer surface of the slider 7 is provided with a sealing groove, and a rubber sealing ring 11 is fitted inside the sealing groove.

[0034] The sealing rubber ring 11 can improve the sealing between the slider 7 and the groove, preventing pressure leakage.

[0035] Example 4

[0036] Based on Example 1, referring to Figure 1 A slot is provided on one side of the cavity, and the slot matches the rack 8.

[0037] The slot facilitates the movement of rack 8.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-regulating oil and gas well pressure valve comprising a valve body (1), characterized in that, Two oil and gas well pipes (2) are flange-connected to both ends of the valve body (1), a channel (3) is arranged in the valve body (1), a slot is arranged around the inner wall of the channel (3), a baffle (4) is slidably arranged in the slot, a cavity is arranged above the slot, a driving mechanism is arranged in the cavity, the baffle (4) is moved by the driving mechanism, a sliding slot is arranged at one end of the valve body (1), a self-adjusting mechanism is arranged in the sliding slot, and the self-adjusting mechanism is matched with the driving mechanism.

2. The self-regulating pressure valve for oil and gas wells according to claim 1, characterized in that, The driving mechanism comprises a lead screw (5) and a gear (6), the lead screw (5) is rotationally connected to the inside of the slot, an internal thread hole is arranged at the upper end of the baffle (4), the baffle (4) is threadedly sleeved on the rod wall of the lead screw (5) through the internal thread hole, one end of the lead screw (5) penetrates through one side of the slot and extends into the cavity, and the gear (6) is fixedly connected to the rod wall of the lead screw (5).

3. The self-regulating pressure valve for oil and gas wells according to claim 1, characterized in that, The self-adjusting mechanism comprises a sliding block (7), a rack (8) and a spring (9), a through hole is arranged between the sliding slot and the cavity, the rack (8) is slidably arranged in the through hole, the sliding block (7) is slidably arranged in the sliding slot and fixedly connected to one end of the rack (8), the spring (9) is slidably sleeved on the rod wall of the rack (8), and the rack (8) is engaged with the gear (6).

4. The self-regulating pressure valve for oil and gas wells according to claim 1, characterized in that, Limiting grooves are arranged on both sides of the slot, limiting blocks (10) are slidably arranged in the limiting grooves, and the two limiting blocks (10) are symmetrically fixedly connected to the two sides of the baffle (4).

5. The self-regulating pressure valve for oil and gas wells according to claim 3, characterized in that, A sealing groove is arranged around the outer surface of the sliding block (7), and a rubber sealing ring (11) is sleeved in the sealing groove.

6. The self-regulating pressure valve for oil and gas wells according to claim 1, characterized in that, A slot is arranged on one side of the cavity, and the slot is matched with the rack (8).

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