CN203614759U - Switch-type ceramic stop valve - Google Patents
Switch-type ceramic stop valve Download PDFInfo
- Publication number
- CN203614759U CN203614759U CN201320675545.3U CN201320675545U CN203614759U CN 203614759 U CN203614759 U CN 203614759U CN 201320675545 U CN201320675545 U CN 201320675545U CN 203614759 U CN203614759 U CN 203614759U
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- CN
- China
- Prior art keywords
- valve
- ceramic
- sealing
- flap
- seat
- 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
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- 239000000919 ceramic Substances 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model relates to a switch-type ceramic stop valve, which belongs to the field of valves. A valve cavity is arranged in a valve body, a valve bonnet is installed above the valve body, a valve stem is installed in the valve bonnet and is inserted into the valve body, a valve clack is arranged at the bottom of the valve stem, the upper part of the valve stem is connected with a transmission mechanism, a ceramic bushing is inlaid in a medium inlet passage, a sealing step is arranged at a throttling port of the valve cavity, a valve seat is arranged at the sealing step, the bottom of the valve clack is conical and is fit with the sealing step of the valve seat, a valve seat ceramic sealing ring is arranged on the valve seat and a valve clack ceramic sealing ring is arranged at the bottom of the valve clack. The switch-type ceramic stop valve has the beneficial effects that since the ceramic sealing rings are adopted at the sealing position and the throttling position of the valve, the washout resistance of the valve is improved; the fitting effect of the conical sealing surface is better, the sealing performance is excellent, the washout force can be partially decomposed and the affect caused by washout is reduced; the ceramic bushing is wear-resistant and corrosion-resistant and realizes tight sealing, and the service life is prolonged.
Description
Technical field
The utility model belongs to a kind of valve, particularly a kind of switching mode ceramic stop valve.
Background technique
At present, the stop valve sealing surface using in the industry such as oil, rock gas is to be substantially all made up of common material, and when valve is during in opening state, high-velocity fluid directly washes away sealing surface, and valve seal was lost efficacy very soon.Also there are in recent years some valves to adopt the method that changes sealing surface shape or material to improve its resistance to erosion ability, but the erosion wear resistance of the sealing surface of these stop valves is still not good, when valve is during in high-pressure opening state, its sealing surface still can be subject to high-velocity fluid and indirectly or directly wash away, weares and teares.Therefore these stop valves can not use for a long time under opening state or frequent open/close states.
Summary of the invention
The purpose of this utility model is to provide a kind of switching mode ceramic stop valve, and the stupalith of high hardness can stand directly washing away and corroding of fluid for a long time, thus the working life of having improved valve
The purpose of this utility model is achieved through the following technical solutions: a kind of switching mode ceramic stop valve, it is characterized in that: it comprises valve body, flap, valve seat, driving mechanism and ceramic chamber lining, , in valve body, be provided with valve pocket, medium inlet passage and medium flow pass that valve pocket and valve pocket are communicated with, valve gap is installed in the top of valve body, valve rod is installed in valve gap, valve rod inserts in valve body, the bottom of valve rod is provided with flap, the top connection for transmission mechanism of valve rod, ceramic chamber lining is embedded in medium inlet passage, restriction place at valve pocket is provided with sealed step, sealed step place is provided with valve seat, the bottom of flap is taper, coincide with the sealed step of valve seat, valve seat is provided with valve seat ceramic seal circle, the bottom of flap is provided with flap ceramic seal circle.
The beneficial effects of the utility model are:
1, the specific pressure on valve sealing face, except valve rod is closed power, acts on the fluid medium pressure on flap in addition, and valve seal performance is enhanced, also more reliable.
2, the high abrasion taper porcelain ring design that sealing position and throttling position adopt, has improved valve resistance to erosion ability.
3, conical seal (contact) face laminating better effects if, sealability is outstanding.
4, mechanics angle, taper can decompose part scouring force, reduces the effect that erosion causes.
5, ceramic embedded lining in valve body, have resistance to wear, corrosion-resistant, sealing is tight, self-cleaning property is good, adjusting function is excellent, the feature that improve working life.
accompanying drawing explanation:
Fig. 1 is the structural representation of the utility model while closing.
Structural representation when Fig. 2 is the utility model unlatching.
Wherein: 1-valve body, 2-flap, 3-valve seat ceramic seal circle, 4-flap ceramic seal circle, 5-valve rod, 6-ceramic chamber lining, 7-valve gap, 8-driving mechanism, 9-valve seat, 10-handwheel.
embodiment:
The utility model is used for to CNOOC's petroleum pipeline, valve body is imported and exported in the conveyance conduit that flange is arranged on respectively fluid, as shown in the figure, in valve body 1, be provided with valve pocket, medium inlet passage and medium flow pass that valve pocket and valve pocket are communicated with, valve gap 7 is installed in the top of valve body 1, the interior installation valve rod 5 of valve gap 7, valve rod 5 inserts in valve body 1, the bottom of valve rod 5 is provided with flap 2, the top connection for transmission mechanism 8 of valve rod 5, ceramic chamber lining 6 is embedded in medium inlet passage, enter with the connecting port place of flow pass and be provided with sealed step at medium, sealed step place is provided with valve seat 9, the sealed step of the bottom of flap 2 and valve seat 9 is coincide, valve seat 9 is provided with valve seat ceramic seal circle 3, the bottom of flap 2 is provided with flap ceramic seal circle 4.
Working principle:
The handwheel 10 that turns clockwise, drives flap 2 to move down by valve rod 5, and valve is tending towards closing, and flow reduces; Counterrotating, drives flap 2 to move up by valve rod 5, and valve is tending towards opening, and rate-of flow increases, and when flap 2 moves to top medium flow maximum, moves to bottom valve and closes completely.
In the time that driving mechanism drives flap to move upward, valve clack sealing surface and sealing surface of seat depart from, valve is tending towards opening, medium enters valve pocket from valve inlet, flow out from valve export, the space size of opening between flap and valve seat has determined the flow of medium, and the bottom of flap is the conical surface, flap is opened larger, and rate-of flow is larger.In the time that valve is all opened, it is maximum that rate-of flow reaches.In the time that driving mechanism drives flap to move downward, valve clack sealing surface and sealing surface of seat are progressively fitted, and the less rate-of flow in space that flap and valve seat are opened is less, and valve is more tending towards closing.When flap and sealing surface of seat are fitted completely, valve is in full closing state, and flowing medium is truncated and cannot passes through from valve.
Claims (1)
1. a switching mode ceramic stop valve, it is characterized in that: it comprises valve body, flap, valve seat, driving mechanism and ceramic chamber lining, in valve body, be provided with valve pocket, medium inlet passage and medium flow pass that valve pocket and valve pocket are communicated with, valve gap is installed in the top of valve body, valve rod is installed in valve gap, valve rod inserts in valve body, the bottom of valve rod is provided with flap, the top connection for transmission mechanism of valve rod, ceramic chamber lining is embedded in medium inlet passage, restriction place at valve pocket is provided with sealed step, sealed step place is provided with valve seat, the bottom of flap is taper, coincide with the sealed step of valve seat, valve seat is provided with valve seat ceramic seal circle, the bottom of flap is provided with flap ceramic seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675545.3U CN203614759U (en) | 2013-10-30 | 2013-10-30 | Switch-type ceramic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320675545.3U CN203614759U (en) | 2013-10-30 | 2013-10-30 | Switch-type ceramic stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614759U true CN203614759U (en) | 2014-05-28 |
Family
ID=50767408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320675545.3U Expired - Fee Related CN203614759U (en) | 2013-10-30 | 2013-10-30 | Switch-type ceramic stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614759U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976363A (en) * | 2015-06-25 | 2015-10-14 | 北京奥盛兰石油技术服务有限公司 | High-pressure valve |
| CN107355571A (en) * | 2017-08-18 | 2017-11-17 | 四川固特阀门制造有限公司 | One kind, which automatically resets, closes block valve |
| CN107355551A (en) * | 2017-08-29 | 2017-11-17 | 四川固特阀门制造有限公司 | Inverse formula opens and closes cut-out cock |
| CN112112987A (en) * | 2020-09-22 | 2020-12-22 | 佛山市冠恒丰机电设备有限公司 | Arch-breaking air valve |
-
2013
- 2013-10-30 CN CN201320675545.3U patent/CN203614759U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976363A (en) * | 2015-06-25 | 2015-10-14 | 北京奥盛兰石油技术服务有限公司 | High-pressure valve |
| CN107355571A (en) * | 2017-08-18 | 2017-11-17 | 四川固特阀门制造有限公司 | One kind, which automatically resets, closes block valve |
| CN107355551A (en) * | 2017-08-29 | 2017-11-17 | 四川固特阀门制造有限公司 | Inverse formula opens and closes cut-out cock |
| CN112112987A (en) * | 2020-09-22 | 2020-12-22 | 佛山市冠恒丰机电设备有限公司 | Arch-breaking air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160622 Address after: 300308 No. 106 South Central Road, Tianjin Airport Economic Zone Patentee after: SHENGKAI (TIANJIN) INDUSTRIAL Co.,Ltd. Address before: In 300308 the Binhai New Area of Tianjin Airport Economic Zone No. 106 Patentee before: Tianjin Shengkai Industrial Technology Development Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20211030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |