Underground rod type pump sealing valve seat

Abstract

The utility model discloses a sealing valve seat of an underground rod type pump, which relates to the technical field of valves and comprises a valve body and a valve seat body, a valve cover is mounted on the valve body through a mounting bolt, a pressing filler is arranged on the valve cover, a valve rod is arranged on the valve body, a valve ball is arranged at one end of the valve rod, a valve cavity is arranged in the valve body, and the valve seat body is arranged in the valve cavity. The valve seat body is installed in the valve cavity, an installation ring is installed in the valve cavity, a piezoresistive sensor is installed on the installation ring, and a plurality of reset springs are arranged on the installation ring. The piezoresistive sensor can detect the abrasion degree in real time, the abrasion condition of the valve seat body is indirectly evaluated by measuring the pressure change of the area, preventive maintenance can be carried out before problems occur, potential abrasion problems can be found in time, and therefore early warning and prevention can be carried out before faults occur. Therefore, pump equipment faults caused by excessive abrasion of the valve seat body can be avoided, and the reliability and the stability of the equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a sealing valve seat for an underground rod pump. Background Technology

[0002] Valves are control components in fluid transport systems, possessing multiple functions such as shut-off, regulation, and flow diversion. The underground rod pump sealing seat, as a crucial part of the valve, directly impacts the valve's sealing effect and fluid control capabilities, ensuring the pump's sealing performance during operation. Through a specific sealing structure, the seat prevents fluid leakage during pump operation, thereby guaranteeing the pump's normal operation and efficiency.

[0003] The primary function of a sealing valve seat is to prevent fluid leakage and ensure the normal operation of the pump. If the valve seat is severely worn, its sealing performance will significantly decrease, leading to fluid leakage and consequently affecting the pump's efficiency and safety. If severe wear is not detected and addressed in a timely manner, it may result in more serious equipment damage, thereby increasing maintenance costs. Therefore, those skilled in the art have provided a ground-mounted rod-type pump sealing valve seat to solve the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing valve seat for an underground rod pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sealing valve seat for an underground rod pump, comprising:

[0007] The valve body has a valve cover mounted on it by mounting bolts. The valve cover is provided with compression packing. The valve body has a valve stem with a valve ball at one end. The valve body has a valve cavity.

[0008] The valve seat body is installed inside the valve cavity. The valve ball is in contact with the valve seat body. An installation ring is installed inside the valve cavity. A piezoresistive sensor is installed on the installation ring. Several return springs are provided on the installation ring.

[0009] Preferably, the valve body has an oil inlet and an oil outlet at both ends, and mounting flanges are provided at both ends.

[0010] Preferably, the lower end of the valve cavity is provided with an installation groove, and the installation groove is provided with a first sealing ring and a second sealing ring, which are in contact with the valve seat body.

[0011] Preferably, the valve seat body has a sealing groove, and the valve ball is engaged in the sealing groove.

[0012] Preferably, the valve seat body is provided with a plurality of sealing protrusions, and the plurality of sealing protrusions are in contact with the valve ball.

[0013] Preferably, the lower end of the mounting ring is provided with a mounting block, and the mounting block is installed in the valve cavity by fixing bolts.

[0014] Preferably, the other end of one or more of the return springs is provided with a retaining ring, and the valve seat body is provided with a retaining groove for the retaining ring to engage.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model utilizes a piezoresistive sensor to detect wear in real time. By measuring pressure changes in the area, it indirectly assesses the wear condition of the valve seat body, enabling preventative maintenance before problems occur, reducing repair costs, and allowing for the timely detection of potential wear issues. This provides early warning and prevention before malfunctions, reducing fluid leakage and improving the efficiency and safety of underground dry pumps. This helps avoid equipment failures caused by excessive wear of the valve seat body, reducing unplanned downtime, improving equipment reliability and stability. Furthermore, the mounting ring facilitates the disassembly of the piezoresistive sensor. When the sensor malfunctions or requires calibration or repair, it is not necessary to disassemble the entire pump body; simply removing the sensor significantly reduces maintenance complexity and costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a sealing valve seat for an underground rod pump according to an embodiment of this application;

[0018] Figure 2 This is a cross-sectional view of a sealing valve seat for an underground rod pump according to an embodiment of this application.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Valve body; 2. Mounting bolt; 3. Valve cover; 4. Compactor packing; 5. Valve stem; 6. Valve ball; 7. Valve cavity; 8. Valve seat body; 9. Mounting ring; 10. Piezoresistive sensor; 11. Return spring; 12. Oil inlet; 13. Oil outlet; 14. Mounting flange; 15. Mounting groove; 16. First sealing ring; 17. Second sealing ring; 18. Sealing groove; 19. Sealing convex ring; 20. Mounting block; 21. Fixing bolt; 22. Engaging ring; 23. Engaging groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3 This utility model provides a technical solution:

[0023] A sealing valve seat for an underground rod pump, comprising:

[0024] The valve body 1 has a valve cover 3 mounted on it by mounting bolts 2. The valve cover 3 is provided with a compression packing 4. The valve body 1 is provided with a valve stem 5. One end of the valve stem 5 is provided with a valve ball 6. The valve body 1 has a valve cavity 7. The valve body 1 has an oil inlet hole 12 and an oil outlet hole 13 at both ends. The valve body 1 has a mounting flange 14 at both ends.

[0025] The valve seat body 8 is installed in the valve cavity 7. The valve ball 6 is in contact with the valve seat body 8. The valve cavity 7 is equipped with an installation ring 9. A piezoresistive sensor 10 is installed on the installation ring 9. Several return springs 11 are provided on the installation ring 9.

[0026] The mounting ring 9 has a mounting block 20 at its lower end. The mounting block 20 is installed in the valve cavity 7 by fixing bolts 21. Several return springs 11 have a locking ring 22 at their other ends. The valve seat body 8 has a locking groove 23 for locking the locking ring 22. The return springs 11 can support the locking ring 22.

[0027] The valve cover 3 is typically located above the valve body 1 and serves to fix and support the valve stem 5 and other internal components. It provides a sealed environment, protecting the valve's interior from external interference. The valve cover 3 is usually equipped with a stuffing box to house the compression packing 4, achieving a seal between the valve stem 5 and the valve cover 3. The valve ball 6 can be moved by raising or lowering the valve stem 5. The valve stem 5 slides within the stuffing box in the valve cover 3; therefore, the sealing performance of the stuffing box is crucial to the sealing of the valve stem 5. When the valve stem 5 moves the valve ball 6 upwards, the oil outlet 13 connects to the valve cavity 7, allowing the medium to flow. Oil enters the valve cavity 7 from the oil inlet 12 and then exits through the oil outlet 13. The mounting flange 14 facilitates the connection of the valve body 1 to external equipment. A sealing pair is formed between the valve ball 6 and the valve seat body 8, ensuring the valve's sealing performance.

[0028] When installing and connecting the piezoresistive sensor 10 to the valve seat body 8, the engaging ring 22 engages in the engaging groove 23 on the valve seat body 8. Then, the mounting block 20 is installed in the valve cavity 7 using the fixing bolts 21, thus fixing the piezoresistive sensor 10 in place. When the piezoresistive sensor 10 is damaged, it is easy to disassemble and replace, which helps to reduce equipment downtime and improve equipment maintenance efficiency.

[0029] When the valve seat body 8 is subjected to fluid pressure, the resistive element in the piezoresistive sensor 10 deforms, causing a change in resistance. By measuring this change in resistance, the pressure distribution acting on the sensor can be inferred. Indirectly assessing the wear condition of the valve seat body 8 by measuring the pressure change in this area allows for preventative maintenance before problems occur, reducing repair costs. It also enables the timely detection of potential wear issues, providing early warning and prevention before failures, reducing fluid leakage, and ultimately improving the efficiency and safety of the underground dry pump. This helps avoid equipment failures due to excessive wear of the valve seat body 8, reducing unplanned downtime and improving equipment reliability and stability.

[0030] Furthermore, the lower end of the valve cavity 7 is provided with an installation groove 15, and the installation groove 15 is provided with a first sealing ring 16 and a second sealing ring 17. The first sealing ring 16 and the second sealing ring 17 are in contact with the valve seat body 8. The valve seat body 8 is provided with a sealing groove 18, and the valve ball 6 is engaged in the sealing groove 18.

[0031] The mounting groove 15 adopts a trapezoidal groove structure design. This unique structure can bring multi-stage sealing effect to the valve seat body 8, effectively improve the sealing performance of the underground rod pump, and ensure the stability and reliability of the system operation. The first sealing ring 16 and the second sealing ring 17 can improve the sealing effect between the valve seat body 8 and the valve body 1.

[0032] By setting the sealing groove 18, a double sealing structure can be realized between the valve seat body 8 and the valve body 1. This structure makes full use of the characteristics of the sealing groove 18, so that the two fit tightly together, forming a double guarantee, which greatly enhances the sealing effect, effectively maintains the sealing performance during system operation, and lays a solid foundation for the stable and efficient operation of the whole device.

[0033] Based on the above embodiments, the valve seat body 8 is provided with a plurality of sealing protrusions 19, and the plurality of sealing protrusions 19 are in contact with the valve ball 6.

[0034] The contact between the sealing rings 19 and the valve ball 6 is a line contact. Compared with point contact, this contact method can distribute pressure more evenly, reduce local wear, thereby extending the service life of the valve, and ensuring that the impact on fluid flow is minimized while providing a good seal.

[0035] It should be noted that the specific model and specifications of the piezoresistive sensor 10 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0036] 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. An underground rod pump seal valve seat, characterized by, include: A valve body (1) is provided with a valve cover (3) installed on the valve body (1) by mounting bolts (2), and a compression packing (4) is provided on the valve cover (3). A valve stem (5) is provided on the valve body (1), and a valve ball (6) is provided at one end of the valve stem (5). A valve cavity (7) is opened inside the valve body (1). A valve seat body (8) is installed in the valve cavity (7). The valve ball (6) is in contact with the valve seat body (8). An installation ring (9) is installed in the valve cavity (7). A piezoresistive sensor (10) is installed on the installation ring (9). Several return springs (11) are provided on the installation ring (9).

2. A subterranean rod pump seal valve seat according to claim 1, wherein: The valve body (1) has an oil inlet (12) and an oil outlet (13) at both ends, and mounting flanges (14) are provided at both ends.

3. A submersible rod pump seal valve seat according to claim 1, wherein: The lower end of the valve cavity (7) is provided with an installation groove (15), and the installation groove (15) is provided with a first sealing ring (16) and a second sealing ring (17). The first sealing ring (16) and the second sealing ring (17) are in contact with the valve seat body (8).

4. A submersible rod pump seal valve seat according to claim 1, wherein: A sealing groove (18) is provided on the valve seat body (8), and the valve ball (6) is engaged in the sealing groove (18).

5. A sealing valve seat for an underground rod-type pump according to claim 1, characterized in that: The valve seat body (8) is provided with a plurality of sealing protrusions (19), and the plurality of sealing protrusions (19) are in contact with the valve ball (6).

6. A sealing valve seat for an underground rod-type pump according to claim 1, characterized in that: The mounting ring (9) has a mounting block (20) at its lower end, and the mounting block (20) is installed in the valve cavity (7) by fixing bolts (21).

7. A sealing valve seat for an underground rod-type pump according to claim 1, characterized in that: The other end of several of the reset springs (11) is provided with a retaining ring (22), and the valve seat body (8) is provided with a retaining groove (23) for the retaining ring (22) to engage.

Images