A high temperature wear-resistant diversion shear valve

Abstract

The utility model discloses a high-temperature wear-resistant diversion shear valve, which relates to the technical field of diversion shear valves, including a valve body, connecting pipes are fixedly installed on both sides of the valve body, a connecting flange is fixedly installed on the outside of the connecting pipe, and a supporting valve seat is fixedly installed on the top of the valve body. The supporting valve seat, a first guide valve seat and a second guide valve seat are convenient for fixing a threaded valve stem, and rotating a valve handle is convenient for driving the threaded valve stem to rotate, so as to drive the diversion shear valve assembly to rise and fall, and then the valve body is opened and closed, a shock-absorbing spring buffers and absorbs vibrations between a connecting bottom plate and the diversion shear valve assembly, a damper prevents the shock-absorbing spring from rebounding, and prevents excessive flow from causing impact on the diversion shear valve assembly, a first wear-resistant coating and a second wear-resistant coating are convenient for improving the wear resistance of the diversion shear valve body, a wear-resistant pad is convenient for reducing the wear of the threaded valve stem on the inside of the supporting valve seat, and a first sealing gasket and a second sealing gasket are convenient for improving the sealing performance of the diversion shear valve assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of diversion shear valves, in particular to a high-temperature wear-resistant diversion shear valve. Background Art

[0002] High temperature wear-resistant diversion shear valve, the valve has the characteristics of exquisite appearance, flexible switching, long service life, etc., and has the special functions of corrosion resistance, oxidation resistance, scraping oil stains, shearing impurities and oil slurry coking. It is suitable for petroleum, chemical industry, electric power and various harsh working conditions.

[0003] In the prior art, shear valves are convenient for connecting and closing flow channels, but the sealing performance of the diversion shear valve is poor and it is easily impacted by the fluid, resulting in unstable opening and closing, affecting its use. Therefore, a high-temperature and wear-resistant diversion shear valve is needed. Utility Model Content

[0004] The purpose of the utility model is to design a high-temperature and wear-resistant diversion shear valve to address the above-mentioned problems existing in the prior art, overcome the shortcomings of the prior art diversion shear valve, which has poor sealing performance and is easily impacted by fluid, resulting in unstable opening and closing.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A high-temperature, wear-resistant diversion shear valve comprises a valve body, connecting pipes are fixedly installed on both sides of the valve body, a connecting flange is fixedly installed on the outside of the connecting pipe, a supporting valve seat is fixedly installed on the top of the valve body, a first guide valve seat is fixedly installed on the top of the supporting valve seat, a second guide valve seat is fixedly installed on the top of the first guide valve seat, a connecting screw groove is fixedly provided on the first guide valve seat, a connecting screw groove is fixedly provided on the second guide valve seat, and a threaded valve stem matching the connecting screw groove is threadedly connected to the inner wall of the connecting screw groove.

[0007] Preferably, a valve handle is fixedly installed on the top of the threaded valve stem, a connecting base plate is fixedly installed on the bottom of the threaded valve stem, one end of a shock-absorbing spring is movably connected to the bottom of the connecting base plate, the other end of the shock-absorbing spring is movably connected to a diversion shear valve assembly, one end of a damper is movably installed on the bottom of the connecting base plate, and the other end of the damper is movably installed to the diversion shear valve assembly.

[0008] Preferably, the diverter shear valve assembly comprises a diverter shear valve body, an outer surface of the diverter shear valve body is fixedly coated with a first wear-resistant coating, and an outer surface of the first wear-resistant coating is fixedly coated with a second wear-resistant coating.

[0009] Preferably, a connecting screw groove is fixedly provided on the supporting valve seat, and a wear-resistant pad is fixedly installed on the inner wall of the connecting screw groove.

[0010] Preferably, a connecting screw groove is fixedly provided on the valve body, a first sealing gasket is fixedly installed on the inner wall of the connecting screw groove, and a second sealing gasket is fixedly installed on the outside of the first sealing gasket.

[0011] Preferably, a mounting base plate is fixedly installed on the outside of the first guide valve seat, a fastening screw groove is fixedly provided on the mounting base plate, and the fastening screw groove is fixedly provided on the top outer wall of the supporting valve seat, and the fastening screw groove connects and fixes the connecting base plate and the supporting valve seat by providing fastening bolts adapted thereto.

[0012] Preferably, the connecting pipe is fixedly connected to the valve body.

[0013] Beneficial effects achieved by the utility model:

[0014] 1. It is connected to the valve body through a connecting pipe, which is convenient for installation and connection with the equipment pipeline through a connecting flange. The threaded valve stem is conveniently fixed through the supporting valve seat, the first guide valve seat and the second guide valve seat. The connecting bottom plate and the supporting valve seat are conveniently installed through the fastening bolts;

[0015] 2. By turning the valve handle, it is convenient to drive the threaded valve stem to rotate, and the threaded valve stem is convenient to drive the diversion shear valve assembly to rise and fall, and then it is convenient to open and close the valve body. The shock-absorbing spring is convenient to buffer and absorb the vibration between the connecting base plate and the diversion shear valve assembly. The damper can prevent the shock-absorbing spring from rebounding, and prevent excessive flow from causing impact on the diversion shear valve assembly, so as to improve the stability of the opening and closing of the diversion shear valve assembly. The first wear-resistant coating and the second wear-resistant coating can improve the wear resistance of the diversion shear valve body, which helps to extend the service life. The wear-resistant pad can reduce the wear of the threaded valve stem on the inside of the supporting valve seat. The first sealing gasket and the second sealing gasket can improve the sealing performance of the diversion shear valve assembly, which helps to improve the effect of diversion shear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a side view of an embodiment of the utility model;

[0020] Figure 5 For an embodiment of the utility model Figure 3A schematic diagram of the enlarged structure in the middle.

[0021] Figure numerals: 1. valve body; 2. connecting pipe; 3. connecting flange; 4. supporting valve seat; 5. first guide valve seat; 6. second guide valve seat; 7. connecting screw groove; 8. threaded valve stem; 9. valve handle; 10. connecting base plate; 11. shock-absorbing spring; 12. damper; 13. diverter shear valve assembly; 131. diverter shear valve body; 132. first wear-resistant coating; 133. second wear-resistant coating; 14. wear-resistant pad; 15. first sealing gasket; 16. second sealing gasket; 17. mounting base plate; 18. fastening screw groove; 19. fastening bolt. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] like Figure 1-Figure 5 As shown, a high-temperature wear-resistant diversion shear valve proposed by the utility model comprises a valve body 1, connecting pipes 2 are fixedly installed on both sides of the valve body 1, the connecting pipes 2 are fixedly connected to the valve body 1, a connecting flange 3 is fixedly installed on the outside of the connecting pipe 2, a supporting valve seat 4 is fixedly installed on the top of the valve body 1, a first guide valve seat 5 is fixedly installed on the top of the supporting valve seat 4, a second guide valve seat 6 is fixedly installed on the top of the first guide valve seat 5, a connecting screw groove 7 is fixedly provided on the first guide valve seat 5, a connecting screw groove 7 is fixedly provided on the second guide valve seat 6, the inner wall of the connecting screw groove 7 is threadedly connected with a threaded valve stem 8 adapted thereto, and the first A mounting base plate 17 is fixedly installed on the outside of a guide valve seat 5, and a fastening screw groove 18 is fixedly set on the mounting base plate 17, and the fastening screw groove 18 is fixedly set on the top outer wall of the support valve seat 4. The fastening screw groove 18 connects and fixes the connecting base plate 10 with the support valve seat 4 by setting a fastening bolt 19 adapted thereto, and is connected with the valve body 1 through a connecting pipe 2, so as to facilitate installation and connection with the equipment pipeline through a connecting flange 3, and to facilitate fixing the threaded valve stem 8 through the support valve seat 4, the first guide valve seat 5 and the second guide valve seat 6, and to facilitate installation of the connecting base plate 10 and the support valve seat 4 through the fastening bolt 19.

[0024] In this embodiment, a valve handle 9 is fixedly installed on the top of the threaded valve stem 8, a connecting base plate 10 is fixedly installed on the bottom of the threaded valve stem 8, one end of a shock-absorbing spring 11 is movably connected to the bottom of the connecting base plate 10, and the other end of the shock-absorbing spring 11 is movably connected to a diversion shear valve assembly 13, one end of a damper 12 is movably installed on the bottom of the connecting base plate 10, and the other end of the damper 12 is movably installed on the diversion shear valve assembly 13, the diversion shear valve assembly 13 includes a diversion shear valve body 131, the outer surface of the diversion shear valve body 131 is fixedly coated with a first wear-resistant coating 132, and the outer surface of the first wear-resistant coating 132 is fixedly coated with a second wear-resistant The wear coating 133 facilitates the threaded valve stem 8 to rotate by rotating the valve handle 9, and the threaded valve stem 8 facilitates the diversion shear valve assembly 13 to be raised and lowered, thereby facilitating the opening and closing of the valve body 1. The shock-absorbing spring 11 facilitates the buffering and absorption of the vibration between the connecting base plate 10 and the diversion shear valve assembly 13. The damper 12 can prevent the shock-absorbing spring 11 from rebounding, and prevent excessive flow from causing impact on the diversion shear valve assembly 13, thereby facilitating the improvement of the opening and closing stability of the diversion shear valve assembly 13. The first wear-resistant coating 132 and the second wear-resistant coating 133 facilitate the improvement of the wear resistance of the diversion shear valve body 131, which helps to extend the service life.

[0025] In this embodiment, a connecting screw groove 7 is fixedly provided on the supporting valve seat 4, a wear-resistant pad 14 is fixedly installed on the inner wall of the connecting screw groove 7, a connecting screw groove 7 is fixedly provided on the valve body 1, a first sealing gasket 15 is fixedly installed on the inner wall of the connecting screw groove 7, and a second sealing gasket 16 is fixedly installed on the outside of the first sealing gasket 15. The wear-resistant pad 14 can be used to reduce the wear of the threaded valve stem 8 on the inside of the supporting valve seat 4, and the first sealing gasket 15 and the second sealing gasket 16 can be used to improve the sealing performance of the diversion shear valve assembly 13, which helps to improve the effect of the diversion shear.

[0026] Working principle: First, the connecting pipe 2 is used to connect with the valve body 1, so as to facilitate installation and connection with the equipment pipeline through the connecting flange 3. The threaded valve stem 8 is fixed by the supporting valve seat 4, the first guide valve seat 5 and the second guide valve seat 6. The connecting bottom plate 10 is installed with the supporting valve seat 4 by the fastening bolt 19. Then, the threaded valve stem 8 is driven to rotate by turning the valve handle 9. The threaded valve stem 8 is easy to drive the diversion shear valve assembly 13 to rise and fall, so as to facilitate the opening and closing of the valve body 1. The vibration between the connecting bottom plate 10 and the diversion shear valve assembly 13 is easy to be reduced by the shock-absorbing spring 11. By buffering and absorbing, the damper 12 can prevent the shock-absorbing spring 11 from rebounding and prevent excessive flow from causing impact on the diversion shear valve assembly 13, so as to improve the stability of the opening and closing of the diversion shear valve assembly 13. The first wear-resistant coating 132 and the second wear-resistant coating 133 can be used to improve the wear resistance of the diversion shear valve body 131, which helps to extend the service life. The wear-resistant pad 14 can be used to reduce the wear of the threaded valve stem 8 on the inside of the supporting valve seat 4. The first sealing gasket 15 and the second sealing gasket 16 can be used to improve the sealing performance of the diversion shear valve assembly 13, which helps to improve the effect of diversion shear.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high temperature wear-resistant diversion shear valve, characterized in that: The invention comprises a valve body (1), connecting pipes (2) are fixedly installed on both sides of the valve body (1), a connecting flange (3) is fixedly installed on the outside of the connecting pipe (2), a supporting valve seat (4) is fixedly installed on the top of the valve body (1), a first guide valve seat (5) is fixedly installed on the top of the supporting valve seat (4), a second guide valve seat (6) is fixedly installed on the top of the first guide valve seat (5), a connecting screw groove (7) is fixedly provided on the first guide valve seat (5), a connecting screw groove (7) is fixedly provided on the second guide valve seat (6), and the connecting screw groove (7) The inner wall of the valve stem (8) is threadedly connected to a threaded valve stem (8) that matches the valve stem; a valve handle (9) is fixedly mounted on the top of the threaded valve stem (8); a connecting base plate (10) is fixedly mounted on the bottom of the threaded valve stem (8); one end of a damping spring (11) is movably connected to the bottom of the connecting base plate (10); the other end of the damping spring (11) is movably connected to a diversion shear valve assembly (13); one end of a damper (12) is movably mounted on the bottom of the connecting base plate (10); the other end of the damper (12) is movably mounted to the diversion shear valve assembly (13).

2. A high temperature wear-resistant diversion shear valve according to claim 1, characterized in that: The diverter shear valve assembly (13) comprises a diverter shear valve body (131), the outer surface of the diverter shear valve body (131) is fixedly coated with a first wear-resistant coating (132), and the outer surface of the first wear-resistant coating (132) is fixedly coated with a second wear-resistant coating (133).

3. A high temperature wear-resistant diversion shear valve according to claim 1, characterized in that: A connecting screw groove (7) is fixedly arranged on the supporting valve seat (4), and a wear-resistant pad (14) is fixedly installed on the inner wall of the connecting screw groove (7).

4. A high temperature wear-resistant diversion shear valve according to claim 1, characterized in that: A connecting screw groove (7) is fixedly provided on the valve body (1), a first sealing gasket (15) is fixedly installed on the inner wall of the connecting screw groove (7), and a second sealing gasket (16) is fixedly installed on the outside of the first sealing gasket (15).

5. A high temperature wear-resistant diversion shear valve according to claim 1, characterized in that: The first guide valve seat (5) is fixedly mounted with a mounting base plate (17) on the outside, and a fastening screw groove (18) is fixedly arranged on the mounting base plate (17), and the fastening screw groove (18) is fixedly arranged on the top outer wall of the supporting valve seat (4), and the fastening screw groove (18) is connected and fixedly connected to the connecting base plate (10) and the supporting valve seat (4) by means of fastening bolts (19) matched thereto.

6. A high temperature wear-resistant diversion shear valve according to claim 1, characterized in that: The connecting pipe (2) is fixedly connected to the valve body (1).

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