Ultrahigh-pressure large-drift-diameter sand prevention fracturing valve

By designing valve seats, guide plates, wave springs, sand-proof rings and other structures in ultra-high pressure large diameter sand-proof fracturing valves, the switching mechanism is optimized, and the problems of large switching torque and poor sealing effect of fracturing valves are solved, and stable sand-proofing is achieved Effective and good sealing performance.

CN222207866UActive Publication Date: 2024-12-20HONGZE DONGJUN MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421043966.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2024-12-20
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

In fracturing operations, the ultra-high pressure large diameter sand-proof fracturing valve is severe due to frequent switching, and the sealing effect is poor, and the sand-proof effect is unstable, so it cannot be opened and closed normally.

Method used

An ultra-high pressure large diameter including valve body, valve seat, guide plate, wave spring, sandproof ring, seal ring, valve plate, tail rod, valve stem, valve cover, steel ring, packing, lock nut and protective cover are designed. The sand-proof fracturing valve adopts a ball screw pair and a converter structure, optimizes the switching mechanism, reduces the switching torque and improves the sealing performance.

Benefits of technology

An ultra-high pressure large diameter sand-proof fracturing valve with small switching torque, good sealing effect and stable sand prevention effect is achieved, preventing fracturing sand from entering the valve cavity, solving the problem that the fracturing valve cannot be opened and switched normally.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222207866U_ABST
    Figure CN222207866U_ABST
Patent Text Reader

Abstract

The utility model discloses an ultrahigh-pressure large-drift-diameter sand prevention fracturing valve which comprises a valve body, valve seats arranged on two sides of a valve cavity, a guide plate arranged on one side of each valve seat, a wave spring, a valve seat lining and a sand prevention ring arranged in the other side of each valve seat, a valve seat sealing ring arranged between each valve seat and the valve body, a valve plate arranged between the valve seats, a tail rod arranged below the valve plate, and a valve rod arranged above the valve plate. The valve cover is arranged above and below the valve body, the steel ring is arranged between the valve body and the valve cover, the valve rod filler, the packing pressing cap and the locking nut are arranged in the valve cover, the tail cover is arranged below the valve cover, the protective cover is arranged above the valve cover, the lower bearing seat, the thrust bearing, the upper bearing seat, the ball screw pair and the adapter are arranged in the protective cover, and the deep groove ball bearing and the bearing cover are arranged above the protective cover. The lower portion of the ball screw pair is connected with the valve rod, the upper portion of the ball screw pair is connected with the conversion connector, and the hand wheel and the hand wheel nut are arranged above the conversion connector. The ultrahigh-pressure large-drift-diameter sand prevention fracturing valve is small in switching torque, good in sealing effect and stable in sand prevention effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing valves, in particular to an ultra-high pressure large-diameter sand-proof fracturing valve. Background Art

[0002] Ultra-high pressure large-diameter sand-proof fracturing valves are generally installed on fracturing manifolds and fracturing trees. During the fracturing operation, they play the role of opening and closing high-pressure fluids. When fracturing operations are in progress, the fracturing valve is fully opened to ensure the passage of fluids; when the fracturing operation is completed, the fracturing valve is fully closed. During the above-mentioned frequent switching process, fracturing sand can easily enter the valve cavity of the fracturing valve, resulting in a large switching torque of the fracturing valve, poor sealing effect, unstable sand-proof effect, and the fracturing valve cannot be opened and closed normally. Summary of the invention

[0003] The utility model aims to provide an ultra-high pressure large-diameter sand-proof fracturing valve with small switching torque, good sealing effect, stable sand-proof effect, preventing fracturing sand from entering the valve cavity, and solving the problem that the fracturing valve cannot be switched on and off.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an ultra-high pressure large-diameter sand-proof fracturing valve, comprising a valve body (7) with valve seats (8) arranged on both sides of the valve cavity, a guide plate (13) arranged at one end of the valve seat (8), a wave spring (11), a valve seat bushing (10) and a sand-proof ring (9) arranged inside the other end of the valve seat (8), a valve seat sealing ring (12) arranged between the valve seat (8) and the valve body (7), a valve plate (14) arranged between the valve seat (8), a tail rod (2) arranged below the valve plate (14), a valve stem (15) arranged above the valve plate (14), valve covers (5) respectively arranged above and below the valve body (7), a steel ring (6) arranged between the valve body (7) and the valve cover (5), and the valve cover (5) ) is provided with a valve stem packing (16), a packing nut (4) and a locking nut (3); a tail cover (1) is provided below the valve cover (5); a protective cover (18) is provided above the valve cover (5); a lower bearing seat (17), a thrust bearing (26), an upper bearing seat (19), a ball screw pair (20) and a conversion joint (21) are provided inside the protective cover (18); a deep groove ball bearing (25) and a bearing cover (22) are provided above the protective cover (18); the lower part of the ball screw pair (20) is connected to the valve stem (15); the upper part of the ball screw pair (20) is connected to the conversion joint (21); a hand wheel (23) and a hand wheel nut (24) are provided above the conversion joint (21).

[0005] Preferably, the valve cover (5), the steel ring (6), the valve stem packing (16), the locking nut (3) and the packing cap (4) are provided in two groups and are symmetrically arranged about the horizontal center of the valve body (7).

[0006] Preferably, the valve seat (8), the guide plate (13), the valve seat bushing (10), the wave spring (11), the sand-proof ring (9), and the valve seat sealing ring (12) are provided in two groups, which are arranged vertically symmetrically about the valve body (7).

[0007] Preferably, the lower part of the ball screw pair (20) is connected to the valve stem (15), and the upper part of the ball screw pair (20) is connected to the conversion joint (21) and then extends into the protective cover (18).

[0008] Preferably, the valve stem (15) passes through the valve body (7) and the valve cover (5) and then extends into the protective cover (18).

[0009] Preferably, the tail rod (2) passes through the valve body (7) and the valve cover (5) and then extends into the tail cover (1).

[0010] The beneficial effects of the utility model are as follows: the utility model provides an ultra-high pressure large-diameter sand-proof fracturing valve with small switching torque, good sealing effect, stable sand-proof effect, preventing fracturing sand from entering the valve cavity, and solving the problem that the fracturing valve cannot be opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0013] In the figure: 1, tail cover 2, tail rod 3, locking nut 4, packing cap 5, valve cover 6, steel ring 7, valve body 8, valve seat 9, sand ring 10, valve seat bushing 11, wave spring 12, valve seat sealing ring 13, guide plate 14, valve plate 15, valve stem 16, valve stem packing 17, lower bearing seat 18, protective cover 19, upper bearing seat 20, ball screw pair 21, conversion joint 22, bearing cover 23, handwheel 24, handwheel nut 25, deep groove ball bearing 26, thrust bearing DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further explained below in conjunction with the accompanying drawings.

[0015] As shown in the figure, the ultra-high pressure large-diameter sand-proof fracturing valve comprises a valve body (7) with valve seats (8) arranged on both sides of the valve cavity, a guide plate (13) arranged at one end of the valve seat (8), a wave spring (11), a valve seat bushing (10) and a sand-proof ring (9) arranged inside the other end of the valve seat (8), a valve seat sealing ring (12) arranged between the valve seat (8) and the valve body (7), a valve plate (14) arranged between the valve seat (8), a tail rod (2) arranged below the valve plate (14), a valve stem (15) arranged above the valve plate (14), valve covers (5) arranged above and below the valve body (7), a steel ring (6) arranged between the valve body (7) and the valve cover (5), a valve stem filling (15) arranged inside the valve cover (5), and a valve seat sealing ring (12) arranged between the valve seat (8) and the valve body (7). The valve cover (5) is provided with a tail cover (1) below the valve cover (5), a protective cover (18) above the valve cover (5), a lower bearing seat (17), a thrust bearing (26), an upper bearing seat (19), a ball screw pair (20), and a conversion joint (21) are arranged in the protective cover (18), a deep groove ball bearing (25) and a bearing cover (22) are arranged above the protective cover (18), the lower part of the ball screw pair (20) is connected to the valve stem (15), the upper part of the ball screw pair (20) is connected to the conversion joint (21), and a hand wheel (23) and a hand wheel nut (24) are arranged above the conversion joint (21).

[0016] Preferably, the valve cover (5), the steel ring (6), the valve stem packing (16), the locking nut (3) and the packing cap (4) are provided in two groups and are symmetrically arranged about the horizontal center of the valve body (7).

[0017] Preferably, the valve seat (8), the guide plate (13), the valve seat bushing (10), the wave spring (11), the sand-proof ring (9), and the valve seat sealing ring (12) are provided in two groups, which are arranged vertically symmetrically about the valve body (7).

[0018] Preferably, the lower part of the ball screw pair (20) is connected to the valve stem (15), and the upper part of the ball screw pair (20) is connected to the conversion joint (21) and then extends into the protective cover (18).

[0019] Preferably, the valve stem (15) passes through the valve body (7) and the valve cover (5) and then extends into the protective cover (18).

[0020] Preferably, the tail rod (2) passes through the valve body (7) and the valve cover (5) and then extends into the tail cover (1).

[0021] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An ultra-high pressure large-diameter sand-proof fracturing valve, Features: The invention comprises a valve body (7) having valve seats (8) on both sides of a valve cavity, a guide plate (13) at one end of the valve seat (8), a wave spring (11), a valve seat bushing (10) and a sand prevention ring (9) at the other end of the valve seat (8), a valve seat sealing ring (12) between the valve seat (8) and the valve body (7), a valve plate (14) between the valve seat (8), a tail rod (2) below the valve plate (14), a valve stem (15) above the valve plate (14), valve covers (5) respectively arranged on the upper and lower parts of the valve body (7), a steel ring (6) between the valve body (7) and the valve cover (5), a valve stem packing (16), a packing pressure cap (15) arranged in the valve cover (5), and a valve spring seal ring (11) arranged in the valve seat (8). 4) and a locking nut (3), a tail cover (1) is provided below the valve cover (5), a protective cover (18) is provided above the valve cover (5), a lower bearing seat (17), a thrust bearing (26), an upper bearing seat (19), a ball screw pair (20), and a conversion joint (21) are provided in the protective cover (18), a deep groove ball bearing (25) and a bearing cover (22) are provided above the protective cover (18), the lower part of the ball screw pair (20) is connected to the valve stem (15), the upper part of the ball screw pair (20) is connected to the conversion joint (21), and a hand wheel (23) and a hand wheel nut (24) are provided above the conversion joint (21).

2. According to claim 1, an ultra-high pressure large-diameter sand control fracturing valve, Features: The valve cover (5), the steel ring (6), the valve stem packing (16), the locking nut (3) and the packing cap (4) are provided in two groups and are symmetrically arranged about the horizontal center of the valve body (7).

3. According to claim 1, an ultra-high pressure large-diameter sand control fracturing valve, Features: The valve seat (8), the guide plate (13), the valve seat bushing (10), the wave spring (11), the sand prevention ring (9), and the valve seat sealing ring (12) are provided in two groups and are arranged vertically symmetrically with respect to the center of the valve body (7).

4. According to claim 1, an ultra-high pressure large-diameter sand control fracturing valve, Features: The lower part of the ball screw pair (20) is connected to the valve stem (15), and the upper part of the ball screw pair (20) is connected to the conversion joint (21) and then extends into the protective cover (18).

5. According to claim 1, an ultra-high pressure large-diameter sand control fracturing valve, Features: The valve stem (15) passes through the valve body (7) and the valve cover (5) and then extends into the protective cover (18).

6. According to claim 1, an ultra-high pressure large-diameter sand control fracturing valve, Features: The tail rod (2) passes through the valve body (7) and the valve cover (5) and then extends into the tail cover (1).