CN219655313U - Top-mounted ball valve - Google Patents
Top-mounted ball valve Download PDFInfo
- Publication number
- CN219655313U CN219655313U CN202320653355.5U CN202320653355U CN219655313U CN 219655313 U CN219655313 U CN 219655313U CN 202320653355 U CN202320653355 U CN 202320653355U CN 219655313 U CN219655313 U CN 219655313U
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- valve
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- sealing
- valve seat
- ring
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- 238000007789 sealing Methods 0.000 claims abstract description 120
- 238000012856 packing Methods 0.000 claims description 33
- 210000004907 gland Anatomy 0.000 claims description 19
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model provides a top-loading ball valve, through set up the sealing unit that comprises disk seat seal assembly and valve ball seal assembly between disk seat and valve ball, can strengthen the sealing performance between disk seat and the valve ball, and disk seat seal assembly and valve ball seal assembly homoenergetic detachable set up on valve ball and disk seat, make valve ball seal assembly and disk seat seal assembly can tear open at any time and trade the maintenance after wearing and tearing appear in long-term use, and mutual sealing contact between disk seat seal assembly and the valve ball seal assembly, can reduce the wearing and tearing between disk seat and the valve ball, improve the life of valve.
Description
Technical Field
The utility model relates to the technical field of ball valves, in particular to a top-mounted ball valve.
Background
In the working conditions of high temperature and high pressure of petroleum, natural gas and electric power systems, hard sealing ball valves are used in many cases. The structure of the existing hard seal ball valve is generally composed of a valve body, a ball body, a valve seat, a valve rod and a valve cover, wherein the ball body is in hard seal fit with a valve seat sealing surface so as to use a high-temperature working condition, and the valve seat is of a floating structure so as to prevent the high-temperature ball body and the valve seat from being blocked by high-temperature expansion.
Disclosure of Invention
In view of this, the present utility model provides a top-loading ball valve.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an upper assembling type ball valve, includes valve body, valve gap, valve ball and valve rod, the valve gap sets up on the valve body, form the valve pocket in the valve body, the valve ball sets up in the valve pocket, the one end of valve rod passes the valve gap and stretches into the valve pocket and be connected with the valve ball, valve pocket inner wall protrusion forms the disk seat, set up sealing unit between disk seat and the valve ball, sealing unit is including forming the disk seat seal assembly on the disk seat and setting up the valve ball seal assembly on the valve ball, the detachable setting of disk seat seal assembly is on the disk seat, disk seat and valve ball pass through disk seat seal assembly and valve ball seal assembly seal meet.
Preferably, the valve seat sealing assembly comprises a valve seat ring, a valve seat pressing ring, an inner sealing ring and an outer sealing ring, the inner sealing ring is connected with the valve ball sealing assembly in a sealing way, a limiting step structure is arranged on the valve seat, the valve seat ring is provided with a step limiting part corresponding to the limiting step structure, the step limiting part is tightly attached to the limiting step structure, the valve seat pressing ring is arranged on one side, far away from the valve ball, of the valve seat, the valve seat pressing ring is provided with a valve seat limiting part and a connecting part, the connecting part is fixedly connected with the valve seat, and the valve seat limiting part is fixedly used for limiting the valve seat ring.
Preferably, the valve seat ring is provided with an inner sealing ring groove, the inner sealing ring is arranged in the inner sealing ring groove, two ends of the inner sealing ring are respectively connected with the groove wall of the inner sealing ring groove and the valve ball sealing assembly in a sealing manner, an outer sealing ring groove is formed between the valve seat ring and the valve seat limiting part of the valve seat pressing ring, the outer sealing ring is arranged in the outer sealing ring groove, the valve seat limiting part is formed by extending downwards vertically from the connecting part of the valve seat pressing ring, and one end of the valve seat limiting part presses the valve seat ring.
Preferably, the valve ball sealing assembly comprises a valve ball pressing ring and a valve ball sealing ring, a positioning end is formed by protruding on the valve ball, the valve ball pressing ring is sleeved on the positioning end in an annular structure, an inner annular groove of the valve ball pressing ring and an outer annular groove of the valve ball pressing ring are formed on one side, close to the valve ball, of the valve ball pressing ring, and the valve ball sealing ring is respectively arranged in the inner annular groove of the valve ball pressing ring and the outer annular groove of the valve ball pressing ring.
Preferably, a shaft sleeve mounting groove is formed between the valve rod and the valve cover, a sealing shaft sleeve is arranged between the valve rod and the valve cover, the sealing shaft sleeve is sleeved on the valve rod, a packing groove is formed between the sealing shaft sleeve and the valve rod, and sealing packing is arranged in the packing groove.
Preferably, the inner wall and the outer wall of the lower part of the sealing shaft sleeve are provided with annular grooves, and O-shaped rings are arranged in the annular grooves.
Preferably, a packing gland is arranged above the sealing packing, the packing gland is sleeved on the valve rod, the packing gland is provided with a pressing part and a gland connecting part, the pressing part stretches into the packing groove to press the sealing packing, a connecting bolt is arranged between the gland connecting part and the valve cover, and the gland connecting part is connected with the valve cover through the connecting bolt.
The utility model has the beneficial effects that: according to the utility model, the sealing unit consisting of the valve seat sealing component and the valve ball sealing component is arranged between the valve seat and the valve ball, so that the sealing performance between the valve seat and the valve ball can be enhanced, and the valve seat sealing component and the valve ball sealing component can be detachably arranged on the valve ball and the valve seat, so that the valve ball sealing component and the valve seat sealing component can be detached and replaced at any time after being worn after long-term use, and the valve seat sealing component and the valve ball sealing component are in sealing contact with each other, so that the wear between the valve seat and the valve ball can be reduced, and the service life of the valve is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, 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 diagram of the structure of the present utility model;
FIG. 2 is an enlarged view at A of FIG. 1;
fig. 3 is an enlarged view at B in fig. 1.
Description of the embodiments
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will be further described with reference to the drawings.
The utility model provides the following technical scheme:
as shown in fig. 1-3, the utility model discloses a top-mounted ball valve, which comprises a valve body 1, a valve cover 2, a valve ball 3 and a valve rod 4, wherein the valve cover 2 is arranged on the valve body 1, a valve cavity 5 is formed in the valve body 1, the valve ball 3 is arranged in the valve cavity 5, one end of the valve rod 4 penetrates through the valve cover 2 and stretches into the valve cavity 5 to be connected with the valve ball 3, the inner wall of the valve cavity 5 protrudes to form a valve seat 6, a sealing unit 7 is arranged between the valve seat 6 and the valve ball 3, the sealing unit 7 comprises a valve seat sealing component 8 formed on the valve seat 6 and a valve ball sealing component 9 arranged on the valve ball 3, the valve seat sealing component 8 is detachably arranged on the valve seat 6, and the valve seat 6 and the valve ball 3 are in sealing connection through the valve seat sealing component 8 and the valve ball sealing component 9. Specifically, in this design, through set up the sealing unit 7 that comprises disk seat seal assembly 8 and valve ball seal assembly 9 between disk seat 6 and valve ball 3, can strengthen the sealing performance between disk seat 6 and the valve ball 3, and disk seat seal assembly 8 and valve ball seal assembly 9 homoenergetic be detachable set up on valve ball 3 and disk seat 6, make valve ball seal assembly 9 and disk seat seal assembly 8 can tear the maintenance of changing at any time after wearing and tearing appear in long-term use, and mutual sealing contact between disk seat seal assembly 8 and the valve ball seal assembly 9, can reduce wearing and tearing between disk seat 6 and the valve ball 3, improve the life of valve.
Further, the valve seat sealing assembly 8 comprises a valve seat ring 10, a valve seat pressing ring 11, an inner sealing ring 12 and an outer sealing ring 13, the inner sealing ring 12 is in sealing connection with the valve ball sealing assembly, a limiting step structure 14 is arranged on the valve seat 6, the valve seat ring 10 is provided with a step limiting part 15 corresponding to the limiting step structure 14, the step limiting part 15 is tightly attached to the limiting step structure 14, the valve seat pressing ring 11 is arranged on one side, far away from the valve ball 3, of the valve seat 6, the valve seat pressing ring 11 is provided with a valve seat limiting part 16 and a connecting part 17, the connecting part 17 is fixedly connected with the valve seat 6, and the valve seat limiting part 16 is used for limiting and fixing the valve seat ring 10. Specifically, in this embodiment, through setting up valve seat ring 10 on disk seat 6, the position is spacing by disk seat clamping ring 11 and spacing ladder structure 14 about valve seat ring 10 on disk seat 6 to guaranteed that valve ball 3 opens and close the in-process can not influence valve seat ring 10 on disk seat 6's position, promoted disk seat seal assembly 8's stability and leakproofness.
Further, an inner sealing ring groove 18 is formed in the valve seat ring 10, the inner sealing ring is arranged in the inner sealing ring groove 18, two ends of the inner sealing ring are respectively in sealing connection with the groove wall of the inner sealing ring groove 18 and the valve ball sealing assembly 9, an outer sealing ring groove 19 is formed between the valve seat ring 10 and the valve seat 6 and the valve seat limiting part 16 of the valve seat pressing ring 11, the outer sealing ring 13 is arranged in the outer sealing ring groove 19, the valve seat limiting part 16 is formed by extending downwards vertically from the connecting part 17 of the valve seat pressing ring 11, and one end of the valve seat limiting part 16 presses the valve seat ring 10.
Further, the valve ball sealing assembly 9 includes a valve ball pressing ring 20 and a valve ball sealing ring 21, the valve ball 3 protrudes to form a positioning end 22, the valve ball pressing ring 20 is sleeved on the positioning end 22 in an annular structure, one side of the valve ball pressing ring 20, which is close to the valve ball 3, is provided with a valve ball pressing ring inner ring groove 23 and a valve ball pressing ring outer ring groove 24, and the valve ball sealing ring 21 is respectively arranged in the valve ball pressing ring inner ring groove 23 and the valve ball pressing ring outer ring groove 24. Specifically, in this embodiment, the ball plunger 20 in the ball seal assembly 9 is disposed on the ball 3 and is fixed on the ball 3 by a bolt, and such a structure is capable of having a detachable connection structure between the ball plunger 20 and the ball 3, so that the ball plunger 20 is convenient to be detached and replaced, and the ball plunger 20 is in contact with the seat seal assembly 8 instead of the ball 3, thereby avoiding abrasion of the ball 3.
Further, a shaft sleeve mounting groove 25 is formed between the valve rod 4 and the valve cover 2, a sealing shaft sleeve 26 is arranged between the valve rod 4 and the valve cover 2, the sealing shaft sleeve 26 is sleeved on the valve rod 4 and stretches into the shaft sleeve mounting groove 25, a packing groove 27 is formed between the sealing shaft sleeve 26 and the valve rod 4, a sealing packing 28 is arranged in the packing groove 27, a packing gland 29 is arranged above the sealing packing 28, the packing gland 29 is sleeved on the valve rod 4, the packing gland 29 is provided with a pressing part 30 and a gland connecting part 31, the pressing part 30 stretches into the packing groove 27 to press the sealing packing 28, a connecting bolt 32 is arranged between the gland connecting part 31 and the valve cover 2, and the gland connecting part 31 is connected with the valve cover 2 through the connecting bolt. Specifically, in the present embodiment, by providing the seal packing 28 between the seal sleeve 26 and the valve stem 4, the sealing performance between the valve stem 4 and the seal sleeve 26 can be enhanced, and the packing gland 29 on the seal packing 28 can compress the seal packing 28 in the packing groove 27, further improving the sealing performance of the seal packing 28.
Further, the inner wall and the outer wall of the lower part of the sealing shaft sleeve 26 are provided with annular grooves 33, and O-shaped rings 34 are arranged in the annular grooves. Specifically, in this embodiment, O-rings are disposed on the inner wall and the outer wall of the sealing sleeve 26, so as to seal between the sealing sleeve 26 and the valve rod 4 and between the sealing sleeve 26 and the valve cover 2, thereby reducing the risk of leakage of medium in the valve cavity 5 and improving the overall tightness of the valve.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an upper assembling type ball valve, includes valve body, valve gap, valve ball and valve rod, the valve gap sets up on the valve body, form the valve pocket in the valve body, the valve ball sets up in the valve pocket, the one end of valve rod passes the valve gap and stretches into the valve pocket and be connected with the valve ball, its characterized in that: the valve is characterized in that a valve seat is formed by protruding the inner wall of the valve cavity, a sealing unit is arranged between the valve seat and the valve ball, the sealing unit comprises a valve seat sealing component formed on the valve seat and a valve ball sealing component arranged on the valve ball, the valve seat sealing component is detachably arranged on the valve seat, and the valve seat and the valve ball are in sealing connection through the valve seat sealing component and the valve ball sealing component.
2. The top-loading ball valve of claim 1, wherein: the valve seat sealing assembly comprises a valve seat ring, a valve seat pressing ring, an inner sealing ring and an outer sealing ring, wherein the inner sealing ring is connected with the valve ball sealing assembly in a sealing way, a limiting step structure is arranged on the valve seat, the valve seat ring is provided with a step limiting part corresponding to the limiting step structure, the step limiting part is tightly attached to the limiting step structure, the valve seat pressing ring is arranged on one side, far away from the valve ball, of the valve seat, the valve seat pressing ring is provided with a valve seat limiting part and a connecting part, the connecting part is connected with the valve seat and fixed, and the valve seat limiting part is used for limiting and fixing the valve seat ring.
3. The top-loading ball valve of claim 2, wherein: the valve seat ring is provided with an inner sealing ring groove, the inner sealing ring is arranged in the inner sealing ring groove, two ends of the inner sealing ring are respectively connected with the groove wall of the inner sealing ring groove and the valve ball sealing assembly in a sealing mode, an outer sealing ring groove is formed between the valve seat ring and the valve seat limiting part of the valve seat and the valve seat pressing ring, the outer sealing ring is arranged in the outer sealing ring groove, the valve seat limiting part is formed by extending downwards vertically from the connecting part of the valve seat pressing ring, and one end of the valve seat limiting part presses the valve seat ring.
4. The top-loading ball valve of claim 1, wherein: the valve ball sealing assembly comprises a valve ball pressing ring and a valve ball sealing ring, a positioning end is formed by protruding on the valve ball, the valve ball pressing ring is sleeved on the positioning end in an annular structure, an inner annular groove of the valve ball pressing ring and an outer annular groove of the valve ball pressing ring are formed on one side, close to the valve ball, of the valve ball pressing ring, and the valve ball sealing ring is respectively arranged in the inner annular groove of the valve ball pressing ring and the outer annular groove of the valve ball pressing ring.
5. The top-loading ball valve of claim 1, wherein: a shaft sleeve mounting groove is formed between the valve rod and the valve cover, a sealing shaft sleeve is arranged between the valve rod and the valve cover, the sealing shaft sleeve is sleeved on the valve rod, a packing groove is formed between the sealing shaft sleeve and the valve rod, and sealing packing is arranged in the packing groove.
6. The top-loading ball valve of claim 5, wherein: and annular grooves are formed in the inner wall and the outer wall of the lower part of the sealing shaft sleeve, and O-shaped rings are arranged in the annular grooves.
7. The top-loading ball valve of claim 5, wherein: the packing gland is arranged above the sealing packing, the packing gland is sleeved on the valve rod, the packing gland is provided with a pressing part and a gland connecting part, the pressing part stretches into the packing groove to press the sealing packing, a connecting bolt is arranged between the gland connecting part and the valve cover, and the gland connecting part is connected with the valve cover through the connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320653355.5U CN219655313U (en) | 2023-03-27 | 2023-03-27 | Top-mounted ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320653355.5U CN219655313U (en) | 2023-03-27 | 2023-03-27 | Top-mounted ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655313U true CN219655313U (en) | 2023-09-08 |
Family
ID=87854988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320653355.5U Active CN219655313U (en) | 2023-03-27 | 2023-03-27 | Top-mounted ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655313U (en) |
-
2023
- 2023-03-27 CN CN202320653355.5U patent/CN219655313U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |