CN115807858B - Low flow rate anti-wear ball valve - Google Patents
Low flow rate anti-wear ball valveInfo
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- CN115807858B CN115807858B CN202211295947.0A CN202211295947A CN115807858B CN 115807858 B CN115807858 B CN 115807858B CN 202211295947 A CN202211295947 A CN 202211295947A CN 115807858 B CN115807858 B CN 115807858B
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Abstract
本发明公开了低流速抗磨球阀，涉及球阀技术领域。本发明包括主体结构、安装结构、连接结构、调节结构、第一密封结构以及第二密封结构，主体结构包括阀体以及端盖，端盖上表面与阀体下表面连接，安装结构包括内六角全牙螺栓，内六角全牙螺栓安装于端盖内表面，连接结构包括侧体以及第二O型圈，侧体安装于阀体外表面。本发明进口阀座以及出口阀座各设有两道密封，当进口阀座密封失效后，由出口阀座提供阀门的密封，阀门在进口端完全关闭时，在出口端仍能保持一定的流通通道，确保不受上游介质的冲刷，由于进口阀座流道流通面积小于出口流道面积，因此在实际应用中能有效降低介质流速，延缓阀座受高速介质冲刷而损坏。
The present invention discloses a low-flow-rate anti-wear ball valve, which relates to the technical field of ball valves. The present invention includes a main structure, a mounting structure, a connecting structure, an adjusting structure, a first sealing structure and a second sealing structure. The main structure includes a valve body and an end cover, the upper surface of the end cover is connected to the lower surface of the valve body, the mounting structure includes a hexagonal full-thread bolt, and the hexagonal full-thread bolt is installed on the inner surface of the end cover, and the connecting structure includes a side body and a second O-ring, and the side body is installed on the outer surface of the valve body. The inlet valve seat and the outlet valve seat of the present invention are each provided with two seals. When the seal of the inlet valve seat fails, the outlet valve seat provides the valve seal. When the valve is completely closed at the inlet end, a certain flow channel can still be maintained at the outlet end to ensure that it is not flushed by the upstream medium. Since the flow area of the inlet valve seat flow channel is smaller than the outlet flow channel area, it can effectively reduce the medium flow rate in actual application and delay the valve seat from being damaged by the high-speed medium.
Description
Technical Field
The invention belongs to the technical field of ball valves, and particularly relates to a medium high-flow-rate (low-flow-rate) antiwear ball valve.
Background
The valve is driven by the valve rod and rotates around the axis of the valve, and can also be used for regulating and controlling fluid, wherein the hard seal V-shaped valve has strong shearing force between the V-shaped ball core and the metal valve seat of the hard alloy for surfacing, and is particularly suitable for mediums containing fiber, tiny solid particles and the like, and the multi-way valve can flexibly control the confluence, the diversion and the flow direction switching of the mediums on a pipeline, and simultaneously can also close any channel to connect the other two channels.
The existing ball valve is easy to damage due to the fact that a valve seat is flushed by medium flowing at high speed in the ball valve when the ball valve is used, so that the ball valve is poor in abrasion resistance effect, short in service life, low in sealing performance and easy to flow out of the medium, and therefore the low-flow-rate abrasion-resistant ball valve is provided.
Disclosure of Invention
The invention aims to provide a low-flow-rate wear-resistant ball valve, which solves the problems that the existing valve seat is damaged by flushing of a high-speed medium and the sealing effect inside the ball valve is poor.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention discloses a low-flow-rate wear-resistant ball valve, which comprises a main body structure, a mounting structure, a connecting structure, an adjusting structure, a first sealing structure and a second sealing structure, wherein the main body structure comprises a valve body and an end cover, the upper surface of the end cover is connected with the lower surface of the valve body, the mounting structure comprises an inner hexagonal full-tooth bolt, the inner hexagonal full-tooth bolt is mounted on the inner surface of the end cover, the connecting structure comprises a side body and a second O-shaped ring, the side body is mounted on the outer surface of the valve body, the upper surface of the second O-shaped ring is connected with the lower surface of the valve body, the adjusting structure comprises an upper valve rod, a second sleeve and a ball body, the second sleeve is mounted on the outer surface of the upper valve rod, one end of the upper valve rod is connected with the outer surface of the ball body, the first sealing structure comprises an inlet valve seat, a first inlet sealing ring and a second inlet sealing ring, the inlet valve seat is mounted in an inner cavity of the valve body, one side surface of the inlet valve seat is mutually matched with the ball body, the second inlet sealing ring is connected with the mounting opening, the lower surface of the first inlet sealing ring is connected with the second inlet sealing ring, the second inlet valve seat is matched with the second inlet sealing seat and the inner cavity.
Preferably, the main body structure further comprises a lower valve rod and a third shaft sleeve, the lower surface of the valve body is provided with a mounting hole, the lower valve rod is connected with the mounting hole, and the third shaft sleeve is mounted on the outer surface of the lower valve rod, wherein the third shaft sleeve plays a role in protecting the lower valve rod from abrasion.
Preferably, the mounting structure further comprises a first gasket, a first O-shaped ring, a stud and a hexagonal nut, wherein the lower surface of the first gasket is connected with the upper surface of the end cover, a plurality of the first O-shaped rings are mounted on the inner surface of the valve body, and the hexagonal nut plays a role in rotating and matching with the stud and then plays a role in fixing a structural member.
Preferably, the connecting structure further comprises a second gasket, a packing gland, a third O-shaped ring, a first inner hexagon bolt, a stop gasket and a handle, wherein the second gasket, the packing gland and the third O-shaped ring are all installed on the outer side of the upper valve rod, the upper surface of the stop gasket is connected with the lower surface of the handle, the upper surface of the valve body is provided with a mounting opening, the first inner hexagon bolt is connected with the mounting opening, and the third O-shaped ring plays a role in protecting the structure.
Preferably, the adjusting structure further comprises a fourth O-shaped ring, a second inner hexagon bolt and a first shaft sleeve, the fourth O-shaped ring is installed on the outer surface of the second shaft sleeve, a mounting groove is formed in the upper surface of the valve body, the second inner hexagon bolt is connected with the mounting groove, and the first shaft sleeve is installed outside the second inner hexagon bolt, wherein the second inner hexagon bolt plays a fixed role.
Preferably, the first sealing structure further comprises a fifth O-shaped ring and an inlet cap, the upper surface of the inlet cap is connected with the inner surface of the valve body, a plurality of the fifth O-shaped rings are arranged between the valve body and the inlet valve seat, and a first spring is arranged on one side of the inlet valve seat, wherein the inlet cap plays a role in sealing connection.
Preferably, the second sealing structure further comprises a sixth O-shaped ring, a second spring, a first outlet sealing ring, a second outlet sealing ring and an outlet cap, one end of the second spring is connected with one side of the outlet valve seat, a ring groove is formed in the upper surface of the outlet valve seat, the sixth O-shaped ring is connected with the ring groove, one side surface of the first outlet sealing ring is connected with one side surface of the outlet valve seat, the upper surface of the second outlet sealing ring is connected with the lower surface of the first outlet sealing ring, the outlet cap is connected with the upper surface of the outlet valve seat, the second spring plays a role of generating pretightening force, after pretightening, pressure difference is generated between the front and back of the valve seat structure, the valve seat body is further abutted to the ball body, and then the complete sealing effect is achieved by the pretightening force and the pressure difference.
The invention has the following beneficial effects:
1. The inlet valve seat and the outlet valve seat are respectively provided with two seals, when the sealing of the inlet valve seat fails, the outlet valve seat provides the sealing of the valve, when the inlet end of the valve is completely closed, a certain flow channel can still be kept at the outlet end of the valve, the flow channel of the inlet valve seat is ensured not to be washed by upstream media, and the flow channel area of the inlet valve seat is smaller than the flow channel area of the outlet valve, so that the flow velocity of the media can be effectively reduced in practical application, and the valve seat is delayed from being damaged by washing of high-speed media.
2. When the ball body rotates for 70 degrees, the inlet seal is close, the outlet seal surface still maintains a certain flow area, and further the fact that the flow area of the outlet seal is far larger than that of the inlet seal surface is further explained, and then the valve seat is effectively prevented from being damaged by high-flow-rate media.
3. The invention uses the spring to generate the pretightening force, the pressure difference between the front and the back of the valve seat is further enlarged, the second sealing ring is pushed to be close to the ball body, then the sealing effect is achieved, the pretightening force of the spring is used for achieving the complete sealing, and the ball body is not closed after the complete sealing, so the sealing effect is good.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first view angle configuration of a low flow rate anti-wear ball valve of the present invention;
FIG. 2 is a schematic view of a second view angle configuration of the low flow rate anti-wear ball valve of the present invention;
FIG. 3 is a schematic diagram of the internal structure of a ball of the low flow rate antiwear ball valve of the present invention rotated 70 degrees;
FIG. 4 is an enlarged view of a portion of FIG. 2A in accordance with the present invention;
Fig. 5 is an enlarged view of a portion of fig. 2B in accordance with the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
100. The valve comprises a main body structure, 110, a valve body, 120, an end cover, 130, a lower valve rod, 140, a third shaft sleeve, 200, a mounting structure, 210, a hexagon socket bolt, 220, a first gasket, 230, a first O-shaped ring, 240, a stud bolt, 250, a hexagon nut, 300, a connecting structure, 310, a side body, 320, a second O-shaped ring, 330, a second gasket, 340, a packing gland, 350, a third O-shaped ring, 360, a first hexagon socket bolt, 370, a stop gasket, 380, a handle, 400, an adjusting structure, 410, an upper valve rod, 420, a second shaft sleeve, 430, a ball, 440, a fourth O-shaped ring, 450, a second hexagon socket bolt, 460, a first shaft sleeve, 500, a first sealing structure, 510, an inlet valve seat, 520, a first inlet sealing ring, 530, a second inlet sealing ring, 540, a fifth O-shaped ring, 550, an inlet cap, 600, a second sealing structure, 610, an outlet port, 620, a sixth O-shaped ring, 630, a second spring, 640, a first outlet cap, 650, a second outlet cap, a second valve seat.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," "lower," "surrounding," and the like are merely used for convenience in describing the present invention and to simplify the description, and do not denote or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Referring to fig. 1-5, the low flow rate antiwear ball valve of the present invention includes a main body structure 100, a mounting structure 200, a connecting structure 300, an adjusting structure 400, a first sealing structure 500 and a second sealing structure 600, wherein the main body structure 100 includes a valve body 110 and an end cap 120, the upper surface of the end cap 120 is connected with the lower surface of the valve body 110, the mounting structure 200 includes a hexagon socket bolt 210, the hexagon socket bolt 210 is mounted on the inner surface of the end cap 120, the connecting structure 300 includes a side body 310 and a second O-ring 320, the side body 310 is mounted on the outer surface of the valve body 110, the upper surface of the second O-ring 320 is connected with the lower surface of the valve body 110, the adjusting structure 400 includes an upper valve stem 410, a second sleeve 420 and a ball 430, the second sleeve 420 is mounted on the outer surface of the upper valve stem 410, one end of the upper valve stem 410 is connected with the outer surface of the ball 430, the first sealing structure 500 includes an inlet valve seat 510, a first inlet sealing ring 520 and a second inlet sealing ring 530, the inlet valve seat 510 is mounted on the inner cavity of the valve body 110, the inlet valve seat 510 is mutually fitted with the ball 430, a mounting port is provided on one side surface of the inlet valve seat 510, the second inlet valve seat 530 is connected with the second inlet seat 520 and the inlet seat is connected with the second inlet seat 610, the upper surface is connected with the inlet seat 610, the inlet seat 610 and the outlet seat is mounted on the inner surface of the inner cavity 610.
Further, the main body structure 100 further includes a lower valve rod 130 and a third shaft sleeve 140, the lower surface of the valve body 110 is provided with a mounting hole, the lower valve rod 130 is connected with the mounting hole, and the third shaft sleeve 140 is mounted on the outer surface of the lower valve rod 130, wherein the third shaft sleeve 140 plays a role in protecting the lower valve rod 130 from abrasion.
Further, the mounting structure 200 further includes a first gasket 220, a first O-ring 230, a stud 240, and a hexagonal nut 250, wherein the lower surface of the first gasket 220 is connected with the upper surface of the end cap 120, the plurality of first O-rings 230 are mounted on the inner surface of the valve body 110, and the hexagonal nut 250 plays a role in rotationally matching with the stud 240, and then plays a role in fixing a structural member.
Further, the connection structure 300 further includes a second gasket 330, a packing gland 340, a third O-ring 350, a first socket head cap bolt 360, a stop gasket 370 and a handle 380, wherein the second gasket 330, the packing gland 340 and the third O-ring 350 are all installed on the outer side of the upper valve rod 410, the upper surface of the stop gasket 370 is connected with the lower surface of the handle 380, the upper surface of the valve body 110 is provided with an installation opening, the first socket head cap bolt 360 is connected with the installation opening, and the third O-ring 350 plays a role of protecting the structure.
Further, the adjusting structure 400 further includes a fourth O-ring 440, a second socket head cap bolt 450 and a first shaft sleeve 460, the fourth O-ring 440 is mounted on the outer surface of the second shaft sleeve 420, a mounting groove is formed on the upper surface of the valve body 110, the second socket head cap bolt 450 is connected with the mounting groove, and the first shaft sleeve 460 is mounted outside the second socket head cap bolt 450, wherein the second socket head cap bolt 450 plays a fixing role.
Further, the first sealing structure 500 further includes a fifth O-ring 540 and an inlet cap 550, the upper surface of the inlet cap 550 is connected with the inner surface of the valve body 110, a plurality of fifth O-rings 540 are installed between the valve body 110 and the inlet valve seat 510, and a first spring is disposed on one side of the inlet valve seat 510, where the inlet cap 550 plays a role of sealing connection.
Further, the second sealing structure 600 further includes a sixth O-ring 620, a second spring 630, a first outlet sealing ring 640, a second outlet sealing ring 650 and an outlet cap 660, one end of the second spring 630 is connected with one side of the outlet valve seat 610, a ring groove is formed on the upper surface of the outlet valve seat 610, the sixth O-ring 620 is connected with the ring groove, one side surface of the first outlet sealing ring 640 is connected with one side surface of the outlet valve seat 610, the upper surface of the second outlet sealing ring 650 is connected with the lower surface of the first outlet sealing ring 640, the lower surface of the outlet cap 660 is connected with the upper surface of the outlet valve seat 610, wherein the second spring 630 plays a role of generating a pretightening force, after pretightening, a pressure difference is generated between the front and rear of the valve seat structure, so that the valve seat body further abuts against the ball 430, and a complete sealing effect is achieved by using the pretightening force and the pressure difference.
The working principle of the invention is as follows:
Referring to fig. 1-5, the present invention is a low flow rate antiwear ball valve, the usage method of the present invention is that an inlet valve seat 510 and an outlet valve seat 610 clamp a ball 430, torque is input through an upper valve stem 410 and a lower valve stem 130 in a cavity of a valve body 110 to drive the ball 430 to rotate, so as to achieve the purpose of connecting a flow passage and closing the flow passage, the flow passage axis of the ball 430 coincides with the valve body 110, the flow passage axis of the upper valve stem 410 and the lower valve stem 130 vertically intersect with the flow passage axis, the internal passage of the ball 430 is divided into two parts, which are respectively coincident with sealing surfaces of the inlet valve seat 510 and the outlet valve seat 610, the inlet valve seat 510 and the outlet valve seat 610 are respectively provided with two seals, when the sealing of the inlet valve seat 510 fails, the outlet valve seat 610 provides sealing of the valve, when the inlet end is completely closed, a certain flow passage can be maintained at the outlet end, so as to ensure that the flushing by upstream medium is avoided, and the flow passage area of the inlet valve seat 510 is smaller than the outlet flow passage area, so that in practical application, the flow rate of medium can be effectively reduced, and the valve seat is delayed from being damaged by high-speed medium.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
1. The low-flow-rate wear-resistant ball valve is characterized by comprising a main body structure (100), a mounting structure (200), a connecting structure (300), an adjusting structure (400), a first sealing structure (500) and a second sealing structure (600), wherein the main body structure (100) comprises a valve body (110) and an end cover (120), the upper surface of the end cover (120) is connected with the lower surface of the valve body (110), the mounting structure (200) comprises an inner hexagonal full-tooth bolt (210), the inner hexagonal full-tooth bolt (210) is mounted on the inner surface of the end cover (120), the connecting structure (300) comprises a side body (310) and a second O-shaped ring (320), the side body (310) is mounted on the outer surface of the valve body (110), the upper surface of the second O-shaped ring (320) is connected with the lower surface of the valve body (110), the adjusting structure (400) comprises an upper valve rod (410), a second sleeve (420) and a ball body (430), the second sleeve (420) is mounted on the outer surface of the upper valve rod (410), one end of the upper valve rod (410) is connected with the outer surface of the ball body (430), the first sealing structure (500) comprises an inlet (510) and the first sealing structure (510) and the inlet (510) are mounted on the valve seat (510), the inlet valve seat (510) is matched with the ball body (430), a mounting opening is formed in one side surface of the inlet valve seat (510), the second inlet sealing ring (530) is connected with the mounting opening, the lower surface of the first inlet sealing ring (520) is connected with the upper surface of the second inlet sealing ring (530), the second sealing structure (600) comprises an outlet valve seat (610), the outlet valve seat (610) is mounted in the inner cavity of the valve body (110), and the outlet valve seat (610) is matched with the ball body (430);
The main body structure (100) further comprises a lower valve rod (130) and a third shaft sleeve (140), wherein a mounting hole is formed in the lower surface of the valve body (110), the lower valve rod (130) is connected with the mounting hole, and the third shaft sleeve (140) is mounted on the outer surface of the lower valve rod (130);
the mounting structure (200) further comprises a first gasket (220), a first O-shaped ring (230), a stud bolt (240) and a hexagonal nut (250), wherein the lower surface of the first gasket (220) is connected with the upper surface of the end cover (120), and a plurality of the first O-shaped rings (230) are mounted on the inner surface of the valve body (110).
2. The low flow rate anti-wear ball valve according to claim 1, wherein the connecting structure (300) further comprises a second gasket (330), a packing gland (340), a third O-shaped ring (350), a first inner hexagonal bolt (360), a stop gasket (370) and a handle (380), the second gasket (330), the packing gland (340) and the third O-shaped ring (350) are all installed on the outer side of the upper valve rod (410), the upper surface of the stop gasket (370) is connected with the lower surface of the handle (380), the upper surface of the valve body (110) is provided with a mounting opening, and the first inner hexagonal bolt (360) is connected with the mounting opening.
3. The low flow rate anti-wear ball valve according to claim 1, wherein the adjusting structure (400) further comprises a fourth O-shaped ring (440), a second inner hexagonal bolt (450) and a first shaft sleeve (460), the fourth O-shaped ring (440) is mounted on the outer surface of the second shaft sleeve (420), a mounting groove is formed in the upper surface of the valve body (110), the second inner hexagonal bolt (450) is connected with the mounting groove, and the first shaft sleeve (460) is mounted outside the second inner hexagonal bolt (450).
4. The low flow rate anti-wear ball valve according to claim 1, wherein the first sealing structure (500) further comprises a fifth O-shaped ring (540) and an inlet cap (550), the upper surface of the inlet cap (550) is connected with the inner surface of the valve body (110), a plurality of the fifth O-shaped rings (540) are arranged between the valve body (110) and the inlet valve seat (510), and a first spring is arranged on one side of the inlet valve seat (510).
5. The low flow rate anti-wear ball valve according to claim 1, wherein the second sealing structure (600) further comprises a sixth O-shaped ring (620), a second spring (630), a first outlet sealing ring (640), a second outlet sealing ring (650) and an outlet cap (660), one end of the second spring (630) is connected with one side of the outlet valve seat (610), the upper surface of the outlet valve seat (610) is provided with a ring groove, the sixth O-shaped ring (620) is connected with the ring groove, one side surface of the first outlet sealing ring (640) is connected with one side surface of the outlet valve seat (610), the upper surface of the second outlet sealing ring (650) is connected with the lower surface of the first outlet sealing ring (640), and the lower surface of the outlet cap (660) is connected with the upper surface of the outlet valve seat (610).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211295947.0A CN115807858B (en) | 2022-10-21 | 2022-10-21 | Low flow rate anti-wear ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211295947.0A CN115807858B (en) | 2022-10-21 | 2022-10-21 | Low flow rate anti-wear ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115807858A CN115807858A (en) | 2023-03-17 |
| CN115807858B true CN115807858B (en) | 2025-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211295947.0A Active CN115807858B (en) | 2022-10-21 | 2022-10-21 | Low flow rate anti-wear ball valve |
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| CN (1) | CN115807858B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858446A (en) * | 2010-06-13 | 2010-10-13 | 无锡智能自控工程有限公司 | Bi-directional sealed V-shaped regulating ball valve |
| CN106090326A (en) * | 2016-08-30 | 2016-11-09 | 天津富赛克流体控制设备有限公司 | Prevent the low moment of torsion tee ball valve that spheroid offsets |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698715B2 (en) * | 1999-12-15 | 2004-03-02 | University Of Alabama | Valve having ceramic components and associated fabrication method |
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2022
- 2022-10-21 CN CN202211295947.0A patent/CN115807858B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858446A (en) * | 2010-06-13 | 2010-10-13 | 无锡智能自控工程有限公司 | Bi-directional sealed V-shaped regulating ball valve |
| CN106090326A (en) * | 2016-08-30 | 2016-11-09 | 天津富赛克流体控制设备有限公司 | Prevent the low moment of torsion tee ball valve that spheroid offsets |
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| Publication number | Publication date |
|---|---|
| CN115807858A (en) | 2023-03-17 |
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