CN211738093U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN211738093U CN211738093U CN202020081568.1U CN202020081568U CN211738093U CN 211738093 U CN211738093 U CN 211738093U CN 202020081568 U CN202020081568 U CN 202020081568U CN 211738093 U CN211738093 U CN 211738093U
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- Prior art keywords
- valve
- spheroid
- sealing
- ball
- hole
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- 238000007789 sealing Methods 0.000 claims abstract description 44
- 239000000945 filler Substances 0.000 claims abstract description 22
- 238000012856 packing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 abstract 1
- 239000013618 particulate matter Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a ball valve, including disk seat, valve gap, spheroid and valve rod, the inside socket joint of disk seat and valve gap is connected, flange and bolted connection are passed through to the outside, and the disk seat corresponds with the valve gap and sets up an overflow hole, and overflow hole can communicate each other, spheroid and valve rod fixed connection, spheroid are located the inside cavity of disk seat and valve gap, and the valve rod runs through and stretches out the valve gap, and spheroidal inside sets up a through-hole, rotates behind the valve rod through-hole can with overflow hole intercommunication, be provided with the sealing member between overflow hole and the spheroid, is provided with a plurality of gland packing between valve rod and the valve gap. The valve body and the valve cover are assembled in a socket joint manner, so that the accumulation of particles can be reduced, the smoothness of the valve is guaranteed, and the valve cannot be jammed during opening and closing; sealing pairs are formed among the sealing element, the sealing filler and the valve body, the contact surface is small, the sealing performance is good, and the leakage of a medium can be effectively prevented. The lining layer can play the anticorrosive effect, can also reduce the frictional wear between spheroid and the valve body chamber, improves life.
Description
Technical Field
The utility model relates to a technical field of valve especially relates to a ball valve.
Background
During the process of pipeline transportation, the pipeline is regulated due to the change of pressure or temperature, and a regulating mechanism, especially a ball valve, is used in the pipeline for regulating the flow rate so as to ensure the optimal working condition and the safety of the environment. Ball valves are generally valves that use a ball with a circular passage as the opening and closing element, and the ball performs the opening and closing action with the rotation of the valve body. The opening and closing part of the ball valve is a ball body with a through hole and rotates around an axis vertical to the channel, so that the aim of opening and closing the channel is fulfilled. The ball valve has the advantages of small fluid resistance, simple structure, tightness, reliability, convenient operation, rapid opening and closing, wide application range and the like, and is widely applied to the fields of petroleum, chemical industry, power generation, paper making, atomic energy, aviation, rockets and the like.
A conventional ball valve is generally a ball having a through hole formed therein and mounted on a valve seat to be opened and closed by rotation of the ball. However, in order to ensure that the internal leakage does not occur, the existing ball valve needs to tightly press the ball body, namely the closing member, on the valve seat during installation, the torque is large during opening and closing, the ball body generates friction with the valve seat during rotation, the abrasion is serious, the leakage is easy to cause, the working reliability of the ball valve can be reduced, and the service life of the ball valve is shortened. In addition, the valve body inner cavity and the ball body of the existing ball valve are both solid bodies, the sealing performance of the packing and sealing ring structure in the valve seat is poor in the using process, the medium leakage is easily caused, the pretightening force is small, the compensation force is small, and the valve is easy to leak after being worn in the opening and closing process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ball valve to solve the problem that above-mentioned prior art exists, make the valve unobstructed, the leakproofness is good, the offset force is big, can prevent effectively revealing of medium, reduce piling up of particulate matter, improve the life of valve.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a ball valve, including disk seat, valve gap, spheroid and valve rod, the disk seat with flange and bolted connection are passed through to the inside socket joint of valve gap, the outside, the disk seat with the valve gap respectively corresponds and sets up a discharge orifice, discharge orifice can communicate each other, the spheroid with valve rod fixed connection, the spheroid is located the disk seat with in the inside cavity of valve gap, the valve rod runs through and stretches out the valve gap, spheroidal inside sets up a through-hole, rotates behind the valve rod the through-hole can with discharge orifice intercommunication, discharge orifice with be provided with the sealing member between the spheroid, the valve rod with be provided with a plurality of packings between the valve gap.
Preferably, the sealing element is a sealing ring, the inner surface of the sealing ring is matched with the ball body, and the outer surface of the sealing ring is provided with a U-shaped groove.
Preferably, the sealing ring and the sealing filler are made of polytetrafluoroethylene.
Preferably, the sealing filler comprises an upper filler and a lower filler, and the upper filler and the lower filler are two mutually matched fillers with conical sections.
Preferably, the lower filler is a hollow circular truncated cone, the inner surface of the hollow circular truncated cone is a cylindrical surface matched with the valve rod, and the outer surface of the hollow circular truncated cone is a conical surface; the inner surface of the upper filler is matched with the conical surface, and the outer surface of the upper filler is a cylindrical surface matched with a valve rod hole in the valve cover.
Preferably, lining layers are inlaid on the surfaces of the valve seat and the inner cavity of the valve cover, the spherical surface of the ball body and the surface of the through hole.
Preferably, the valve seat with the inner cavity surface of valve gap, spheroid sphere and through-hole surface all are provided with a plurality of dovetail, the inner liner be provided with dovetail assorted arch.
Preferably, the material of the inner liner is a fluorine material, and the inner liner is filled into the dovetail groove through a heat capacity extrusion process.
The utility model discloses for prior art gain following technological effect:
the valve body and the valve cover of the utility model are assembled by socket joint and butt joint, which can reduce the accumulation of particles, ensure the smoothness of the valve and prevent the valve from being blocked; sealing pairs are formed among the sealing element, the sealing filler and the valve body, leakage of media can be effectively prevented, the contact surface is small, the pretightening force is large, and the sealing performance is good. The lining layer can play the anticorrosive effect, can also reduce the frictional wear between spheroid and the valve body chamber, improves life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional structural view of the ball valve of the present invention;
FIG. 2 is a schematic sectional view of the ball valve of the present invention;
FIG. 3 is a schematic structural diagram I of the ball valve of the present invention;
FIG. 4 is a schematic structural view II of the ball valve of the present invention;
fig. 5 is a schematic structural diagram three of the ball valve of the present invention;
wherein: 1-valve seat, 2-valve cover, 3-ball, 4-valve rod, 5-overflowing hole, 6-through hole, 7-upper filler, 8-lower filler, 9-sealing ring, 10-dovetail groove, 11-handle and 12-lining layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a ball valve to solve the problem that prior art exists, make the valve unobstructed, the leakproofness is good, the offset force is big, can prevent effectively revealing of medium, reduce piling up of particulate matter, improve the life of valve.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 to 5: this embodiment provides a ball valve, including disk seat 1, valve gap 2, spheroid 3 and valve rod 4, disk seat 1 is connected with the inside socket joint of valve gap 2, outside through flange and bolted connection, can reduce piling up of particulate matter, keeps the valve unobstructed. The valve seat 1 and the valve cover 2 are respectively and correspondingly provided with a overflowing hole 5, the overflowing holes 5 can be communicated with each other, the ball body 3 is fixedly connected with the valve rod 4, the ball body 3 is positioned in an inner cavity of the valve seat 1 and the valve cover 2, the valve rod 4 penetrates through and extends out of the valve cover 2, the valve rod 4 is in sealing connection with the valve cover 2, a through hole 6 is formed in the ball body 3, the through hole 6 can be communicated with the overflowing hole 5 after the valve rod 4 is rotated, a sealing element is arranged between the overflowing hole 5 and the ball body 3, a plurality of sealing fillers are arranged between the valve rod 4 and the valve cover 2, and.
The sealing member is a sealing ring 9, the inner surface of the sealing ring 9 is matched with the ball body 3, and the outer surface of the sealing ring 9 is provided with a U-shaped groove. Adopt the sealing washer 9 of dual elastic construction between discharge orifice 5 and the spheroid 3, can realize the long-term pretightning force of disk seat 1 to form sealed vice with disk seat 1, spheroid 3, it is little with the contact surface of spheroid 3, can effectively prevent that the medium from leaking outward.
The sealing packing comprises an upper packing 7 and a lower packing 8, wherein the upper packing 7 and the lower packing 8 are two mutually matched packings with conical sections. The lower packing 8 is a hollow circular table, the inner surface of the hollow circular table is a cylindrical surface matched with the valve rod 4, and the outer surface of the hollow circular table is a conical surface; the inner surface of the upper filler 7 is matched with the conical surface, and the outer surface is a cylindrical surface matched with the valve rod hole on the valve cover 2. The sealing ring 9 and the sealing filler of the embodiment are made of polytetrafluoroethylene, so that the wear resistance of the sealing ring can be improved. The sealing packing and the stroke of the valve rod 4 in the valve cover 2 form an effective sealing pair, when a medium permeates to the position of the sealing packing from a gap between the ball body 3 and the valve cover 2, pressure is applied to the lower packing 8, and then the lower packing 8 and the upper packing 7 are compressed to automatically seal and prevent the medium from further permeating.
The inner lining layers 12 are embedded on the surfaces of the inner cavities of the valve seat 1 and the valve cover 2 and the surfaces of the spherical surface of the sphere 3 and the through hole 6. The inner cavity surfaces of the valve seat 1 and the valve cover 2 and the surfaces of the spherical surface of the sphere 3 and the through hole 6 are respectively provided with a plurality of dovetail grooves 10, and the inner liner 12 is provided with bulges matched with the dovetail grooves 10. The material of the inner liner 12 is fluorine material, and the inner liner 12 is filled into the dovetail groove 10 through the heat capacity extrusion process, and the inner liner process of fluorine material plays the anticorrosive effect, and the wearability is good, and the dovetail groove 10 seals the pretightning force greatly, can effectually prevent that the medium from revealing.
In the embodiment, grooves with dovetail-shaped cross sections are uniformly distributed on the surfaces of the inner cavities of the valve seat 1 and the valve cover 2, the spherical surface of the ball 3 and the surface of the through hole 6 to form a dovetail groove 10, and the requirements on the slotting direction, size, position and number of the dovetail groove 10 can be determined according to the structure and the size. The dovetail groove 10 is matched with the inner liner layer 12 made of fluorine materials, so that the inner liner layer 12 cannot be sunken in under the vacuum condition, the dovetail groove 10 can firmly pull the inner liner layer 12, the inner liner layer 12 is smooth and adhesive force is enhanced, the inner liner layer is uniform in shrinkage, and delamination and vacuum adsorption shrinkage can be effectively prevented.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A ball valve, characterized in that: including disk seat, valve gap, spheroid and valve rod, the disk seat with flange and bolted connection are passed through to the inside socket joint of valve gap, the outside, the disk seat with the valve gap respectively corresponds and sets up a discharge orifice, discharge orifice can communicate each other, the spheroid with valve rod fixed connection, the spheroid is located the disk seat with in the inside cavity of valve gap, the valve rod runs through and stretches out the valve gap, spheroidal inside sets up a through-hole, rotates behind the valve rod the through-hole can with discharge orifice intercommunication, discharge orifice with be provided with the sealing member between the spheroid, the valve rod with be provided with a plurality of sealing filler between the valve gap.
2. The ball valve according to claim 1, wherein: the sealing element is a sealing ring, the inner surface of the sealing ring is matched with the ball body, and the outer surface of the sealing ring is provided with a U-shaped groove.
3. The ball valve of claim 2, wherein: the sealing ring and the sealing filler are made of polytetrafluoroethylene.
4. The ball valve according to claim 1, wherein: the sealing packing comprises an upper packing and a lower packing, and the upper packing and the lower packing are two mutually matched packings with conical sections.
5. The ball valve according to claim 4, wherein: the lower filler is a hollow circular table, the inner surface of the hollow circular table is a cylindrical surface matched with the valve rod, and the outer surface of the hollow circular table is a conical surface; the inner surface of the upper filler is matched with the conical surface, and the outer surface of the upper filler is a cylindrical surface matched with a valve rod hole in the valve cover.
6. The ball valve according to claim 1, wherein: and lining layers are embedded on the surfaces of the valve seat and the inner cavity of the valve cover, the spherical surface of the ball body and the surface of the through hole.
7. The ball valve of claim 6, wherein: the valve seat with the inner chamber surface of valve gap spheroid sphere and through-hole surface all are provided with a plurality of dovetail, the inner liner be provided with dovetail assorted arch.
8. The ball valve according to claim 7, wherein: the inner liner is made of fluorine materials, and the inner liner is filled into the dovetail groove through a heat capacity extrusion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081568.1U CN211738093U (en) | 2020-01-15 | 2020-01-15 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081568.1U CN211738093U (en) | 2020-01-15 | 2020-01-15 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211738093U true CN211738093U (en) | 2020-10-23 |
Family
ID=72882372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020081568.1U Active CN211738093U (en) | 2020-01-15 | 2020-01-15 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211738093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120680A (en) * | 2020-01-15 | 2020-05-08 | 浙江有氟密阀门有限公司 | a ball valve |
-
2020
- 2020-01-15 CN CN202020081568.1U patent/CN211738093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120680A (en) * | 2020-01-15 | 2020-05-08 | 浙江有氟密阀门有限公司 | a ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210219 Address after: 355200 Wenzhou Yuanwendu Industrial Zone, Fuding City, Ningde City, Fujian Province Patentee after: Youfu tight pipe valve group Co.,Ltd. Address before: No.1-1, East Qianjie Avenue, Yongzhong street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG YFM VALVE Co.,Ltd. |
|
| TR01 | Transfer of patent right |