Wear-resistant ball valve for high-pressure seawater ore pulp

Abstract

The utility model relates to the technical field of ball valves, in particular to a wear-resistant ball valve for high-pressure seawater ore pulp, which comprises a valve body, a valve rod, a valve rod seat, a valve core, a connecting component and a sealing mechanism, the valve body comprises a main valve body, a left valve body and a right valve body, the valve core is arranged in the main valve body, the valve rod penetrates through the valve body and is arranged at the top of the valve core, and the valve rod seat is sleeved on the valve rod. The sealing mechanism is arranged on the left valve body and the right valve body, the left valve body and the right valve body are rotationally connected with the main valve body through a connecting assembly, the connecting assembly comprises a rotating shaft, a first connecting rod and a second connecting rod, one end of the first connecting rod is connected with the main valve body, and one end of the second connecting rod is connected with the left valve body; the end, away from the main valve body, of the first connecting rod and the end, away from the left valve body, of the second connecting rod are each provided with a through hole, and the rotating shaft penetrates through the through holes. According to the utility model, the main valve body is connected with the left valve body and the right valve body through the rotatable connecting assemblies, so that a worker can open the valve bodies more conveniently for maintenance work.

Description

Technical Field

[0001] The present application relates to the technical field of ball valves for slurry, and in particular to a wear-resistant ball valve for high-pressure seawater slurry. Background Art

[0002] A ball valve is a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium in the pipeline, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. At present, the Chinese utility model patent application with publication date of August 29, 2023 and publication number CN219606092U provides a ball valve that reduces the wear of the ball valve, including a valve body, connecting pipes on both sides of the valve body, a hollow ball in the valve body, a transmission shaft fixedly connected to the top of the hollow ball, and a valve stem fixedly connected to the top of the transmission shaft, the transmission shaft passes through the valve body and is rotatably connected to the valve body, the hollow ball and the valve body are gap-connected, a clamping assembly for clamping the ball valve is provided in the connecting pipe, and a positioning assembly for limiting and fixing the clamping assembly and the valve stem is provided on the top of the clamping assembly; by separating the hollow rubber sheet from the hollow ball in advance before opening or closing the ball valve, and then combining the gap connection between the hollow ball and the valve body, when the valve stem drives the hollow ball to rotate, the hollow ball does not rub against the inner wall of the valve body as in the prior art, thereby reducing wear and improving the service life of the ball valve.

[0003] A ball valve in the related art that reduces ball valve wear has an integrated valve body. After long-term use, the internal structure of the ball valve will inevitably wear and damage. At this time, it is difficult to open the ball valve to inspect the inside of the ball valve, and the entire ball valve can only be replaced, which increases the use cost of the ball valve. Utility Model Content

[0004] The embodiment of the present application provides a wear-resistant ball valve for high-pressure seawater slurry, which can improve the technical problems existing in the related art that the ball valve is inconvenient to disassemble and the ball valve is difficult to repair after internal damage.

[0005] The embodiment of the present application provides a wear-resistant ball valve for high-pressure seawater slurry, including a valve body, a valve stem, a valve stem seat, a valve core, a connecting assembly and a sealing mechanism, wherein the valve body includes a main valve body, a left valve body and a right valve body, the valve core is arranged inside the main valve body, the left valve body, the right valve body and the parts of the valve core that are in contact with the fluid are sprayed with a wear-resistant coating, the valve stem passes through the valve body and is arranged on the top of the valve core and is engaged with the valve core, the valve stem seat is arranged on the top of the valve body, passes through the valve body and is sleeved on the valve stem, one end of the valve stem seat presses the valve stem on the valve core, the The other end of the valve stem seat is threadedly connected to the top of the valve body; the sealing mechanism is arranged on the left valve body and the right valve body and one end is in contact with the valve core. The left valve body and the right valve body are rotatably connected to the main valve body through a connecting assembly. The connecting assembly includes a rotating shaft, a first connecting rod and a second connecting rod. One end of the first connecting rod is connected to the main valve body, and one end of the second connecting rod is connected to the left valve body. Through holes are provided at one end of the first connecting rod away from the main valve body and one end of the second connecting rod away from the left valve body, and the rotating shaft is penetrated through the through hole.

[0006] The above-mentioned technical scheme in the embodiment of the present application has at least the following technical effects: after the internal parts of the ball valve are damaged due to long-term use, causing the ball valve to fail to work normally, the staff can use the connecting assembly to conveniently open the left valve body and the right valve body of the ball valve and repair and replace the damaged parts inside the valve body. Since the left valve body and the right valve body are still rotatably connected to the main valve body after being opened, the assembly process after maintenance is facilitated, and a single staff member can also perform maintenance work on the ball valve.

[0007] The wear-resistant ball valve for high-pressure seawater slurry provided in the embodiment of the present application can allow a worker to conveniently open the valve body to perform maintenance work on the inside of the ball valve through a connecting assembly provided on the valve body.

[0008] In some embodiments, the connecting assembly further includes a connecting ring and connecting bolts. The connecting ring is arranged on the main valve body and the left valve body. A threaded hole is opened on the connecting ring. The connecting rings are connected to each other through connecting bolts.

[0009] In some embodiments, the sealing mechanism includes a sealing ring and a sliding assembly. Spring grooves are provided on the left valve body and the right valve body. The sliding assembly is arranged in the spring groove. One end of the sealing ring is threadedly connected in the sliding assembly, and the other end of the sealing ring abuts against the valve core.

[0010] In some embodiments, the sliding assembly includes a spring, a sliding seat, a first sealing ring and a second sealing ring. The spring is arranged in a spring groove, one end of the spring abuts against the bottom of the spring groove, and the other end of the spring abuts against one end of the sliding seat. The sliding seat is provided with a thread at one end away from the spring, and one end of the sealing ring is provided with a thread and is threadedly connected to the end of the sliding seat away from the spring. The first sealing ring and the second sealing ring are both arranged between the inner wall of the spring groove and the end of the valve seat close to the spring.

[0011] In some embodiments, a valve cover is disposed at the bottom of the main valve body, the valve cover is threadedly connected to the main valve body, a limiting shaft is disposed on a side of the valve cover close to the valve core, and the limiting shaft passes through the main valve body and abuts against the valve core.

[0012] In some embodiments, a bracket is sleeved on the valve stem, and one end of the bracket is threadedly connected to the valve stem seat.

[0013] In some embodiments, a pneumatic device is disposed at one end of the bracket away from the main valve body, the pneumatic device is threadedly connected to the bracket, and an output end of the pneumatic device is transmission-connected to the valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic diagram of the overall structure of a wear-resistant ball valve for high-pressure seawater slurry provided in an embodiment of the present application;

[0016] Figure 2 A schematic diagram of the overall structure of the bottom of a wear-resistant ball valve for high-pressure seawater slurry provided in an embodiment of the present application;

[0017] Figure 3 A cross-sectional view of a wear-resistant ball valve for high-pressure seawater slurry provided in an embodiment of the present application;

[0018] Figure 4 for Figure 3 A magnified view of part A;

[0019] Figure 5 for Figure 3 Enlarged view of part B.

[0020] Among them, the reference numerals in the figure are:

[0021] 11. Main valve body; 111. Valve cover; 112. Limiting shaft; 12. Left valve body; 13. Right valve body; 2. Valve stem; 22. Bracket; 3. Valve stem seat; 4. Valve core; 51. Rotating shaft; 52. First connecting rod; 53. Second connecting rod; 54. Connecting ring; 55. Connecting bolt; 61. Sealing ring; 62. Spring; 63. Sliding seat; 64. First sealing ring; 65. Second sealing ring; 7. Pneumatic device. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0028] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] A ball valve is a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium in the pipeline, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in the pipeline.

[0030] A ball valve in the related art that reduces ball valve wear has an integrated valve body. After long-term use, the internal structure of the ball valve will inevitably wear and damage. At this time, it is difficult to open the ball valve to inspect the inside of the ball valve, and the entire ball valve can only be replaced, which increases the use cost of the ball valve.

[0031] Based on this, in order to improve the problems in the related art, the embodiments of the present application provide the following solutions.

[0032] Please also read Figures 1 to 5The embodiment of the present application provides a wear-resistant ball valve for high-pressure seawater slurry, including a valve body, a valve stem 2, a valve stem seat 3, a valve core 4, a connecting assembly and a sealing mechanism. The valve body includes a main valve body 11, a left valve body 12 and a right valve body 13. The valve core 4 is arranged inside the main valve body 11. The left valve body 12, the right valve body 13 and the parts of the valve core 4 in contact with the fluid are sprayed with a wear-resistant coating. The valve stem 2 passes through the valve body and is arranged on the top of the valve core 4 and is engaged with the valve core 4. The valve stem seat 3 is arranged on the top of the valve body and passes through the valve body and is sleeved on the valve stem 2. One end of the valve stem seat 3 presses the valve stem 2 on the valve core 4. The valve stem seat 3 The other end is threadedly connected to the top of the valve body; the sealing mechanism is arranged on the left valve body 12 and the right valve body 13 and one end is in contact with the valve core 4. The left valve body 12 and the right valve body 13 are rotatably connected to the main valve body 11 through a connecting assembly. The connecting assembly includes a rotating shaft 51, a first connecting rod 52 and a second connecting rod 53. One end of the first connecting rod 52 is connected to the main valve body 11, and one end of the second connecting rod 53 is connected to the left valve body 12. Through holes are provided at one end of the first connecting rod 52 away from the main valve body 11 and at one end of the second connecting rod 53 away from the left valve body 12, and the rotating shaft 51 is penetrated through the through hole.

[0033] From the above, it can be seen that after the internal parts of a wear-resistant ball valve for high-pressure seawater slurry provided in the embodiment of the present application are damaged due to long-term use, resulting in the ball valve being unable to work normally, the staff can use the connecting assembly to conveniently open the left valve body 12 and the right valve body 13 of the ball valve and repair and replace the damaged parts inside the valve body. Since the left valve body 12 and the right valve body 13 are still rotatably connected to the main valve body 11 after being opened, the assembly process after maintenance is facilitated, and a single staff member can also perform maintenance work on the ball valve.

[0034] In some embodiments, please refer to Figures 1 to 5 The connecting assembly also includes a connecting ring 54 and a connecting bolt 55 . The connecting ring 54 is arranged on the main valve body 11 and the left valve body 12 . A threaded hole is opened on the connecting ring 54 . The connecting rings 54 are connected to each other through the connecting bolt 55 .

[0035] With such arrangement, when the ball valve is working, the connecting bolts 55 can be used to tighten the connecting ring 54 to prevent leakage due to poor sealing at the contacting parts of the left valve body 12 and the right valve body 13 with the main valve body 11 .

[0036] Optionally, in some embodiments, see Figures 1 to 5 The sealing mechanism includes a sealing ring 61 and a sliding assembly. Spring grooves are provided on the left valve body 12 and the right valve body 13. The sliding assembly is arranged in the spring groove. One end of the sealing ring 61 is threadedly connected to the sliding assembly, and the other end of the sealing ring 61 abuts against the valve core 4.

[0037] With such arrangement, the sealing ring 61 can fit with the valve core 4, and play a sealing role when the fluid flows through the internal channel of the ball valve, preventing the fluid from flowing into the position where the valve stem seat 3 and the valve stem 2 are located, and having an adverse effect on the normal rotation of the valve stem 2; when the valve core 4 rotates to a closed state, the sealing ring 61 and the valve core 4 hinder the flow of fluid on one side, thereby achieving the effect of closing the ball valve; the sliding component can move in the spring groove, and after the sealing ring 61 and the contact position of the valve core 4 and the sealing ring 61 are worn for a long time in the ball valve, so that the sealing performance of the sealing ring 61 and the valve core 4 is reduced, the sliding component can apply pressure to the sealing ring 61 to make the sealing ring 61 and the valve core 4 fit more closely, thereby improving the overall sealing performance of the ball valve; when the sealing ring 61 is worn to a large extent and can no longer work, the staff can open the ball valve and rotate the sealing ring 61 to separate it from the sliding seat 63 and replace it with a new sealing ring 61, which can increase the service life of the ball valve and reduce its use cost.

[0038] Optionally, see Figures 1 to 5 The sliding assembly includes a spring 62, a sliding seat 63, a first sealing ring 64 and a second sealing ring 65. The spring 62 is arranged in the spring groove, one end of the spring 62 abuts against the bottom of the spring groove, and the other end of the spring 62 abuts against one end of the sliding seat 63. The sliding seat 63 has a thread at one end away from the spring 62, and the sealing ring 61 has a thread at one end and is threadedly connected to the end of the sliding seat 63 away from the spring 62. The first sealing ring 64 and the second sealing ring 65 are both arranged between the inner wall of the spring groove and the end of the valve seat close to the spring 62.

[0039] With such arrangement, the spring 62 is responsible for applying pressure to the sliding seat 63, and the first sealing ring 64 and the second sealing ring 65 can ensure that the fluid flowing through the ball valve will not enter the spring groove to interfere with the normal operation of the sliding assembly.

[0040] In some embodiments, see Figures 1 to 5 A valve cover 111 is provided at the bottom of the main valve body 11 , and the valve cover 111 is threadedly connected to the main valve body 11 . A limiting shaft 112 is provided on one side of the valve cover 111 close to the valve core 4 , and the limiting shaft 112 passes through the main valve body 11 and abuts against the valve core 4 .

[0041] With such arrangement, the limit shaft 112 can support the valve core 4 and limit it in the horizontal direction to prevent the valve core 4 from leaving its original position when rotating and causing the ball valve to fail to work normally. The valve cover 111 can be removed manually. When the valve core 4 is severely worn, the staff can open the left valve body 12 and the right valve body 13, and remove the valve stem seat 3, valve stem 2 and valve cover 111. At this time, the valve core 4 can be removed and replaced with a new one, thereby extending the service life of the ball valve.

[0042] Optionally, in some embodiments, see Figures 1 to 5A bracket 22 is sleeved on the valve stem 2, and one end of the bracket 22 is threadedly connected to the valve stem seat 3.

[0043] With such arrangement, the bracket 22 can support the valve stem 2 to prevent the valve stem 2 from deviating from the original position during the rotation process, and can also fix the valve stem seat 3 .

[0044] Optionally, see Figures 1 to 5 A pneumatic device 7 is provided at one end of the bracket 22 away from the main valve body 11 . The pneumatic device 7 is threadedly connected to the bracket 22 , and an output end of the pneumatic device 7 is drivingly connected to the valve stem 2 .

[0045] With such arrangement, the pneumatic device 7 allows the worker to save more effort when opening or closing the ball valve.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wear-resistant ball valve for high-pressure seawater slurry, characterized by: The invention comprises a valve body, a valve stem (2), a valve stem seat (3), a valve core (4), a connecting assembly and a sealing mechanism, wherein the valve body comprises a main valve body (11), a left valve body (12) and a right valve body (13), the valve core (4) is arranged inside the main valve body (11), the left valve body (12), the right valve body (13) and the parts of the valve core (4) in contact with the fluid are sprayed with a wear-resistant coating, the valve stem (2) passes through the valve body and is arranged on the top of the valve core (4) and is engaged with the valve core (4), the valve stem seat (3) is arranged on the top of the valve body, passes through the valve body and is sleeved on the valve stem (2), one end of the valve stem seat (3) presses the valve stem (2) onto the valve core (4), and the other end of the valve stem seat (3) is threadedly connected to the top of the valve body. The sealing mechanism is arranged on the left valve body (12) and the right valve body (13) and one end of the sealing mechanism is in contact with the valve core (4). The left valve body (12) and the right valve body (13) are rotatably connected to the main valve body (11) through a connecting assembly. The connecting assembly comprises a rotating shaft (51), a first connecting rod (52) and a second connecting rod (53). One end of the first connecting rod (52) is connected to the main valve body (11), and one end of the second connecting rod (53) is connected to the left valve body (12). Through holes are provided at one end of the first connecting rod (52) away from the main valve body (11) and at one end of the second connecting rod (53) away from the left valve body (12). The rotating shaft (51) is passed through the through hole.

2. A wear-resistant ball valve for high-pressure seawater slurry according to claim 1, characterized in that: The connection assembly further comprises a connection ring (54) and a connection bolt (55); the connection ring (54) is arranged on the main valve body (11) and the left valve body (12); a threaded hole is provided on the connection ring (54); and the connection rings (54) are connected to each other via the connection bolt (55).

3. The wear-resistant ball valve for high-pressure seawater slurry according to claim 1, characterized in that: The sealing mechanism comprises a sealing ring (61) and a sliding assembly. The left valve body (12) and the right valve body (13) are both provided with spring grooves. The sliding assembly is arranged in the spring grooves. One end of the sealing ring (61) is threadedly connected to the sliding assembly, and the other end of the sealing ring (61) is in contact with the valve core (4).

4. A wear-resistant ball valve for high-pressure seawater slurry according to claim 3, characterized in that: The sliding assembly comprises a spring (62), a sliding seat (63), a first sealing ring (64) and a second sealing ring (65); the spring (62) is arranged in a spring groove, one end of the spring (62) abuts against the bottom of the spring groove, the other end of the spring (62) abuts against one end of the sliding seat (63); a thread is provided at one end of the sliding seat (63) away from the spring (62); a thread is provided at one end of the sealing ring (61) and is threadedly connected to the end of the sliding seat (63) away from the spring (62); the first sealing ring (64) and the second sealing ring (65) are both arranged between the inner wall of the spring groove and the end of the valve seat close to the spring (62).

5. The wear-resistant ball valve for high-pressure seawater slurry according to claim 4, characterized in that: A valve cover (111) is provided at the bottom of the main valve body (11), and the valve cover (111) is threadedly connected to the main valve body (11). A limiting shaft (112) is provided on a side of the valve cover (111) close to the valve core (4), and the limiting shaft (112) passes through the main valve body (11) and abuts against the valve core (4).

6. A wear-resistant ball valve for high-pressure seawater slurry according to claim 5, characterized in that: A bracket (22) is sleeved on the valve stem (2), and one end of the bracket (22) is threadedly connected to the valve stem seat (3).

7. The wear-resistant ball valve for high-pressure seawater slurry according to claim 6, characterized in that: A pneumatic device (7) is provided at one end of the bracket (22) away from the main valve body (11); the pneumatic device (7) is threadedly connected to the bracket (22); and the output end of the pneumatic device (7) is drivingly connected to the valve stem (2).

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