Ultrahigh-pressure corrosion-resistant enhanced fracturing pump valve box

Abstract

The utility model provides an ultrahigh-pressure corrosion-resistant enhanced fracturing pump valve box. Comprising a valve box body, a pipeline is fixed to the valve box body through a fixing ring, the fixing ring is fixed to the valve box body through a bolt, a limiting ring matched with the fixing ring is fixed to one end of the pipeline, a sealing ring is connected to the limiting ring in a clamped mode, a buffering cushion is connected to the sealing ring in a clamped mode, and a clamping ring is connected to the buffering cushion in a clamped mode. A threaded ring is fixed to the clamping ring, a threaded groove hole matched with the threaded ring is formed in the valve box body, and a clamping head matched with the limiting ring is arranged on the sealing ring. The ultrahigh-pressure corrosion-resistant enhanced fracturing pump valve box solves the problems that under ultrahigh pressure, leakage is prone to occurring at the connecting position between an existing fracturing pump valve box and a pipeline, the sealing performance between the existing fracturing pump valve box and the pipeline is poor, long-time leakage occurs, the valve box and the pipeline are corroded, the valve box and the pipeline are prone to being directly fractured, and the service life of the fracturing pump valve box is prolonged. And the use of the whole equipment is influenced.

Description

Technical Field

[0001] This utility model relates to the field of fracturing pump valve boxes, and in particular to an ultra-high pressure corrosion-resistant enhanced fracturing pump valve box. Background Technology

[0002] In oil and gas field development, fracturing technology is widely used in production enhancement operations. The fracturing pump is the most important equipment in fracturing operations. It consists of two parts: a power end and a hydraulic end. The power end converts the energy of a diesel engine or electric motor into kinetic energy and transmits it to the hydraulic end through a plunger. The main component of the hydraulic end is the valve box. The low fatigue life of the fracturing pump valve box has become one of the bottlenecks in improving the overall performance of the fracturing pump. Improving the efficiency of the fracturing pump valve box will increase the internal pressure of the fracturing pump valve box. Under ultra-high pressure, the connection between the existing fracturing pump valve box and the pipeline is prone to leakage. The sealing performance between the two is poor. Long-term leakage will corrode the valve box and the pipeline, which can easily cause them to break directly, affecting the use of the entire equipment.

[0003] Therefore, it is necessary to provide an ultra-high pressure corrosion-resistant reinforced fracturing pump valve box to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides an ultra-high pressure corrosion-resistant enhanced fracturing pump valve box, which solves the problem that leakage easily occurs at the connection between the existing fracturing pump valve box and the pipeline under ultra-high pressure, the sealing performance between the two is poor, and long-term leakage corrodes the valve box and pipeline, which can easily cause the two to break directly, affecting the use of the entire equipment.

[0005] To solve the above-mentioned technical problems, this utility model provides an ultra-high pressure corrosion-resistant reinforced fracturing pump valve box, including a valve box body, on which a pipe is fixed by a fixing ring, and the fixing ring is fixed to the valve box body by bolts;

[0006] One end of the pipe is fixed with a limiting ring that matches the fixed ring. A sealing ring is snapped onto the limiting ring, and a buffer pad is snapped onto the sealing ring. A retaining ring is snapped onto the buffer pad. A threaded ring is fixed onto the retaining ring, and a threaded groove is provided on the valve box body that matches the threaded ring.

[0007] Preferably, the sealing ring is provided with a locking head that is adapted to the limiting ring.

[0008] Preferably, the sealing ring is provided with a groove.

[0009] Preferably, the fixing ring is provided with a limiting groove that is adapted to the limiting ring.

[0010] Preferably, the valve box body is provided with a first mounting hole adapted to the bolt.

[0011] Preferably, the fixing ring is provided with a second mounting hole that is compatible with the bolt.

[0012] Compared with related technologies, the ultra-high pressure corrosion-resistant reinforced fracturing pump valve box provided by this utility model has the following beneficial effects:

[0013] This utility model provides an ultra-high pressure corrosion-resistant enhanced fracturing pump valve box. The grooved design on the sealing ring and the buffer pad further reduce the instantaneous impact force of the flowing fluid on the pipeline, thus reducing the vibration amplitude of the pipeline. The threaded slots on the valve box body that match the threaded ring and the limiting grooves on the fixing ring that match the limiting ring further prevent loosening and leakage at the pipeline connection. This solves the problem that existing fracturing pump valve boxes and pipelines are prone to leakage under ultra-high pressure, resulting in poor sealing performance. Prolonged leakage corrodes the valve box and pipeline, easily causing them to break directly, affecting the overall use of the equipment. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of an ultra-high pressure corrosion-resistant reinforced fracturing pump valve box provided by this utility model;

[0015] Figure 2 for Figure 1 The structural diagram of the fixing ring is shown below;

[0016] Figure 3 for Figure 1 The diagram shows the structure of the valve box body.

[0017] The following are the labels in the diagram: 1. Valve box body, 2. Fixing ring, 3. Pipe, 4. Bolt, 5. Limiting ring, 6. Sealing ring, 8. Buffer pad, 9. Snap ring, 10. Threaded ring, 11. Threaded groove, 12. Snap ring, 13. Groove, 14. Limiting groove, 15. First mounting hole, 16. Second mounting hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please refer to the following: Figure 1-3 As shown, an ultra-high pressure corrosion-resistant reinforced fracturing pump valve box includes a valve box body 1, a pipe 3 fixed on the valve box body 1 by a fixing ring 2, and the fixing ring 2 is fixed to the valve box body 1 by bolts 4.

[0020] One end of the pipe 3 of this utility model is fixed with a limiting ring 5 that is compatible with the fixing ring 2. A sealing ring 6 is snapped onto the limiting ring 5, and a buffer pad 8 is snapped onto the sealing ring 6. A retaining ring 9 is snapped onto the buffer pad 8, and a threaded ring 10 is fixed onto the retaining ring 9. A threaded groove 11 that is compatible with the threaded ring 10 is provided on the valve box body 1, which improves the sealing performance.

[0021] The sealing ring 6 of this utility model is provided with a clamp 12 that matches the limiting ring 5. The sealing ring 6 is provided with a groove 13, and the fixing ring 2 is provided with a limiting groove 14 that matches the limiting ring 5. The groove 13 on the sealing ring 6 and the buffer pad 8 further reduce the instantaneous impact force of the liquid flow on the pipeline 3 and reduce the vibration amplitude of the pipeline 3. The threaded slot 11 on the valve box body 1 that matches the screw ring 10 and the limiting groove 14 on the fixing ring 2 that matches the limiting ring 5 further prevent the connection of the pipeline 3 from loosening and leaking.

[0022] The valve box body 1 of this utility model is provided with a first mounting hole 15 that matches the bolt 4, and the fixing ring 2 is provided with a second mounting hole 16 that matches the bolt 4, so as to facilitate installation and disassembly.

[0023] The working principle of the ultra-high pressure corrosion-resistant enhanced fracturing pump valve box provided by this utility model is as follows: When the valve box body 1 is working, the internal oil enters the pipeline 3 through the threaded slot 11 of the valve box body 1. Under high pressure, the groove 13 on the sealing ring 6 and the buffer pad 8 further reduce the instantaneous impact force of the fluid flow on the pipeline 3, reducing the vibration amplitude of the pipeline 3. The threaded slot 11 on the valve box body 1 that matches the threaded ring 10 and the limiting groove 14 on the fixing ring 2 that matches the limiting ring 5 further prevent the connection of the pipeline 3 from loosening and leaking, thus improving the service life of the fracturing pump valve box.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A valve box for an ultra-high pressure corrosion-resistant reinforced fracturing pump, characterized in that, Includes a valve box body (1), on which a pipe (3) is fixed by a fixing ring (2), and the fixing ring (2) is fixed to the valve box body (1) by bolts (4); One end of the pipe (3) is fixed with a limiting ring (5) that is compatible with the fixing ring (2). A sealing ring (6) is snapped onto the limiting ring (5), and a buffer pad (8) is snapped onto the sealing ring (6). A retaining ring (9) is snapped onto the buffer pad (8). A threaded ring (10) is fixed onto the retaining ring (9), and a threaded slot (11) that is compatible with the threaded ring (10) is provided on the valve box body (1).

2. The ultra-high pressure corrosion-resistant reinforced fracturing pump valve box according to claim 1, characterized in that, The sealing ring (6) is provided with a locking head (12) that is compatible with the limiting ring (5).

3. The ultra-high pressure corrosion-resistant reinforced fracturing pump valve box according to claim 1, characterized in that, The sealing ring (6) is provided with a groove (13).

4. The ultra-high pressure corrosion-resistant reinforced fracturing pump valve box according to claim 1, characterized in that, The fixed ring (2) is provided with a limiting groove (14) that is adapted to the limiting ring (5).

5. The ultra-high pressure corrosion-resistant reinforced fracturing pump valve box according to claim 1, characterized in that, The valve box body (1) is provided with a first mounting hole (15) that is compatible with the bolt (4).

6. The ultra-high pressure corrosion-resistant reinforced fracturing pump valve box according to claim 1, characterized in that, The fixing ring (2) is provided with a second mounting hole (16) that is compatible with the bolt (4).

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