CN213808975U - Ball valve capable of prolonging service life - Google Patents
Ball valve capable of prolonging service life Download PDFInfo
- Publication number
- CN213808975U CN213808975U CN202022720910.0U CN202022720910U CN213808975U CN 213808975 U CN213808975 U CN 213808975U CN 202022720910 U CN202022720910 U CN 202022720910U CN 213808975 U CN213808975 U CN 213808975U
- Authority
- CN
- China
- Prior art keywords
- valve
- service life
- valve body
- disk seat
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000012856 packing Methods 0.000 claims description 22
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process 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
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model relates to a ball valve technical field specifically is a can increase of service life's ball valve, set up the disk seat hole that supplies the disk seat installation to place in the valve body, the disk seat is kept away from spheroidal one end inside wall and is and leans out the setting, and the disk seat is kept away from and is offered the deformation groove that is used for reducing moment on the spheroidal one end lateral wall. The deformation groove absorbs torque increase caused by partial accumulated errors, the effect of reducing the torque and prolonging the service life is achieved, the valve seat hole is matched with the inclined plane of the valve seat, the pretightening force generated by compression of a sealing surface is used, the good sealing performance is matched with the deformation groove, the torque is reduced, the service life is prolonged, the end surface of the valve seat, which is in contact with the ball body, is of a cambered surface structure matched with the ball body, the compression amount is reduced, the torque is reduced, and the service life is prolonged; the thrust pad reduces the friction of disk seat and valve body, simultaneously, avoids the pressure variation of valve body inner chamber, arouses the valve rod to go up and down, is showing the noise reduction, has very strong practicality.
Description
Technical Field
The utility model relates to a ball valve technical field specifically is a can increase of service life's ball valve.
Background
The ball valve is a valve whose opening and closing piece is driven by valve rod and can make rotary motion around the axis of ball valve, and can be used for regulating and controlling fluid, and is applicable to the medium containing fibre and small solid granules, etc.. With the progress of science and technology, ball valves are rapidly developed, the production process and the product structure are continuously improved, and the use number of the ball valves is continuously increased. In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy steel and the like, and plays an important role in national economy.
The inside spheroid of current ball valve at the during operation, hard contact between spheroid and the disk seat, long-term use wearing and tearing are serious, lead to sealing performance to descend, reduce life, and simultaneously, the valve rod can produce the friction with the valve body at the rotation in-process, increase valve rod pivoted moment to reduce life, for this reason, we provide a ball valve that can increase life.
Disclosure of Invention
An object of the utility model is to provide a can increase of service life's ball valve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a can increase of service life's ball valve, includes the valve body, installs the spheroid in the valve body, installs in the valve body and be located being used for of spheroid both sides and form sealed disk seat with the spheroid terminal surface, connects and be used for adjusting the spheroid and open and close and run through the valve rod of valve body at the spheroid up end, and the adjustment spanner of being convenient for operate is installed to the upper end of valve rod, is provided with between valve rod and the valve body and packs, and there is the spacing gland that is used for packing through bolted connection in the upper end of valve body, set up the disk seat hole that supplies the disk seat installation to place in the valve body, the spheroidal one end inside wall is and leans out the setting, offers the deformation groove that is used for reducing moment on the spheroidal one end lateral wall is kept away from to the disk seat.
Furthermore, the end face of the valve seat contacted with the ball body is of a cambered surface structure matched with the ball body.
Further, pack including two-layer polytetrafluoroethylene filler and be located the graphite packing that is used for the fire prevention between the two-layer polytetrafluoroethylene filler, the cover is equipped with the O type circle that is located lower floor's polytetrafluoroethylene filler lower extreme on the valve rod, still cup joints on the valve rod and installs in the valve body and be located the sliding bearing that O type circle lower extreme is used for reducing friction reducing moment.
Furthermore, a thrust pad sleeved on the valve rod is embedded below the sliding bearing in the valve body.
Further, a gap is reserved between the sliding bearing and the thrust pad on the valve body and the valve rod.
Compared with the prior art, the beneficial effects of the utility model are that: according to the ball valve with the service life prolonged, the deformation groove absorbs torque increase caused by part of accumulated errors, the effect of reducing the torque and prolonging the service life is achieved, the valve seat hole is matched with the inclined plane of the valve seat, the pretightening force generated by compression of the sealing surface is used, the good sealing performance is matched with the deformation groove, the torque is reduced, the service life is prolonged, the end surface of the valve seat, which is in contact with the ball body, is of a cambered surface structure matched with the ball body, the compression amount is reduced, the torque is reduced, and the service life is prolonged; graphite packing provides good fire behavior for the valve, and polytetrafluoroethylene packs and restricts O type circle in the headspace to for packing provides complete fire prevention seal space, O type circle sealing performance is good, and slide bearing reduces the friction, increase of service life, and reducing torque, thrust pad reduce the friction of disk seat and valve body, simultaneously, avoid valve body inner chamber pressure to change, arouse the valve rod to go up and down, are showing the noise abatement, have very strong practicality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of part A of the present invention;
fig. 3 is an enlarged schematic view of the part B of the present invention.
In the figure: the valve comprises a valve body 1, a ball 2, a valve seat 3, a deformation groove 31, a gland 4, a valve rod 5, an adjusting wrench 6, a packing 7, a polytetrafluoroethylene packing 71, a graphite packing 72, a sliding bearing 8, a thrust pad 9 and an O-shaped ring 10.
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 work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a ball valve capable of prolonging service life comprises a valve body 1, a ball body 2 installed in the valve body 1, a valve seat 3 installed in the valve body 1 and positioned at two sides of the ball body 2 and used for forming sealing with the end face of the ball body 2, a valve rod 5 connected to the upper end face of the ball body 2 and used for adjusting the opening and closing of the ball body 2 and penetrating through the valve body 1, an adjusting wrench 6 convenient for operation is installed at the upper end of the valve rod 5, a packing 7 is arranged between the valve rod 5 and the valve body 1, the upper end of the valve body 1 is connected with a gland 4 used for limiting the packing through a bolt, a valve seat hole used for installing and placing the valve seat 3 is formed in the valve body 1, the inner side wall of one end of the valve seat 3 far away from the ball body 2 is arranged in an outward inclined way, the valve seat hole is matched with the inclined plane of the valve seat 3, the pretightening force generated by compression of a sealing surface is used, the good sealing performance is matched with a deformation groove 31, the moment is reduced, the service life is prolonged, the deformation groove 31 used for reducing the moment is formed in the side wall of one end of the valve seat 3 far away from the ball body 2, the deformation groove 31 absorbs the torque increase caused by partial accumulated errors, the effect of reducing the torque and prolonging the service life is achieved, the end face of the valve seat 3, which is in contact with the ball body 2, is of a cambered surface structure matched with the ball body 2, the compression amount is reduced, the torque is reduced, and the service life is prolonged.
According to the ball valve capable of prolonging the service life, the deformation groove 31 absorbs torque increase caused by part of accumulated errors, so that the effect of reducing the torque and prolonging the service life is achieved, the valve seat hole is matched with the inclined surface of the valve seat 3, the pretightening force generated by compression of a sealing surface is used, good sealing performance is matched with the deformation groove 31, the torque is reduced, the service life is prolonged, the end surface of the valve seat 3, which is in contact with the ball body 2, is of a cambered surface structure matched with the ball body 2, the compression amount is reduced, the torque is reduced, and the service life is prolonged; graphite packing 72 provides good fire behavior for the valve, polytetrafluoroethylene packs 71 and restricts O type circle 10 in the headspace to for packing 7 provides complete fire prevention seal space, O type circle 10 sealing performance is good, slide bearing 8, reduce the friction, increase of service life, reduce moment, thrust pad 9 reduces the friction of disk seat 3 and valve body 1, and simultaneously, avoid the change of valve body 1 inner chamber pressure, arouse the lift of valve rod 5, show the noise abatement, have very strong practicality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a can increase of service life's ball valve, including valve body (1), install spheroid (2) in valve body (1), install in valve body (1) and be located being used for of spheroid (2) both sides and form sealed disk seat (3) with spheroid (2) terminal surface, connect and be used for adjusting spheroid (2) to open and close and run through valve rod (5) of valve body (1) at spheroid (2) up end, regulation spanner (6) of being convenient for operate are installed to the upper end of valve rod (5), be provided with between valve rod (5) and valve body (1) filler (7), there is gland (4) that is used for packing spacing in the upper end of valve body (1) through bolted connection, a serial communication port: set up the disk seat hole that supplies disk seat (3) installation to place in valve body (1), the one end inside wall that spheroid (2) were kept away from in disk seat (3) is and leans out the setting, offers deformation groove (31) that are used for reducing moment on the one end lateral wall that spheroid (2) were kept away from in disk seat (3).
2. A ball valve with an extended service life according to claim 1, wherein: the end face of the valve seat (3) contacted with the sphere (2) is of a cambered surface structure matched with the sphere (2).
3. A ball valve with an extended service life according to claim 2, wherein: packing (7) are used for the graphite packing (72) of fire prevention including two-layer polytetrafluoroethylene packing (71) and being located between two-layer polytetrafluoroethylene packing (71), and the cover is equipped with O type circle (10) that are located lower floor polytetrafluoroethylene packing (71) lower extreme on valve rod (5), still cup joints on valve rod (5) and installs and be located O type circle (10) lower extreme and be used for reducing friction reducing moment's slide bearing (8) in valve body (1).
4. A ball valve with an extended service life according to claim 3, wherein: a thrust pad (9) sleeved on the valve rod (5) is embedded below the sliding bearing (8) in the valve body (1).
5. A ball valve with an extended service life according to claim 4, wherein: and a gap is reserved between the sliding bearing (8) and the thrust pad (9) at one section of the valve body (1) and the valve rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022720910.0U CN213808975U (en) | 2020-11-23 | 2020-11-23 | Ball valve capable of prolonging service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022720910.0U CN213808975U (en) | 2020-11-23 | 2020-11-23 | Ball valve capable of prolonging service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213808975U true CN213808975U (en) | 2021-07-27 |
Family
ID=76937070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022720910.0U Expired - Fee Related CN213808975U (en) | 2020-11-23 | 2020-11-23 | Ball valve capable of prolonging service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213808975U (en) |
-
2020
- 2020-11-23 CN CN202022720910.0U patent/CN213808975U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |