CN201391613Y - Improved stop valve - Google Patents
Improved stop valve Download PDFInfo
- Publication number
- CN201391613Y CN201391613Y CN200920067925U CN200920067925U CN201391613Y CN 201391613 Y CN201391613 Y CN 201391613Y CN 200920067925 U CN200920067925 U CN 200920067925U CN 200920067925 U CN200920067925 U CN 200920067925U CN 201391613 Y CN201391613 Y CN 201391613Y
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- CN
- China
- Prior art keywords
- valve
- conical
- fluid
- sealing
- improved stop
- 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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Abstract
The utility model relates to the technical field of valves, in particular to an improved stop valve comprising a valve body, a valve seat, a valve cover, a valve rod, a hand wheel and a valve clack. The improved stop valve is characterized in that the shape of the valve clack is in a conical column structure with a big upper end and a small lower end; and the valve seat is provided with a conical sealing pair matched with the contact surface of the valve clack. The improved stop valve has the advantage that the structure is simple and reasonable, the impact area of fluid at an inlet on the valve clack is reduced by half due to the adoption of the conical valve clack; nearly half of fluid cuts in a middle cavity from the conical surface, therefore, the flow resistance entering into the middle cavity and the energy consumption of a system are greatly reduced so as to enable the fluid to smoothly pass through; the sealing state is more reliable due to the conical sealing pair; and the probability of impurities of the fluid attached on the sealing surface is greatly reduced due to the design of large angle conical sealing, so that the infringement of the impurities on the sealing surface is reduced so as to prolong the service life of the valve.
Description
[technical field]
The utility model relates to valve technology field, specifically a kind of improved stop valve.
[background technique]
The flap structure of existing stop valve is a straight angle cylinder type flap, and the contacted sealing surface of the flap of this structure and valve seat is the horizontal seal face, when fluid enters the valve body lumen by the inlet channel of valve body like this, all will be with 90 wide-angle bends inflows of spending almost.So flow resistance and system energy consumption that fluid enters in the lumen are very big, the thermal transition loss that causes system to heat up.In addition, because the horizontal seal face, regular meeting sinks on sealing surface during impurity in the fluid, brings the infringement of impurity to sealing surface, damages sealing surface, thereby has shortened the working life of valve greatly
[summary of the invention]
Task of the present utility model overcomes the deficiencies in the prior art exactly, and a kind of improved stop valve is provided, and flow resistance and system energy consumption that fluid enters in the lumen reduce greatly, and it is more reliable to connect face seal.
The utility model adopts following technical proposals: a kind of improved stop valve, comprise: valve body, valve seat, valve gap, valve rod, handwheel and flap, described flap profile is small top and big bottom cone type column structure, and described valve seat is provided with the tapered sealing pair that matches with the flap surface of contact.
The tapered angle of described flap is the 15-75 degree.
The utility model advantage: simple and reasonable for structure, flap adopts tapered flap, make the impact area of inlet's fluid and flap reduce half, nearly the fluid of half is from conical surface incision lumen, this will make the flow resistance and the system energy consumption that enter in the lumen greatly reduce, fluid can freely so pass through, tapered sealing pair not only can make sealing state more reliable, the design of wide-angle conical surface seal will reduce impurity in the fluid greatly and be attached to probability on the sealing surface, thereby reduce impurity has prolonged valve to the infringement of sealing surface working life.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Referring to Fig. 1,1 is inlet channel, and 2 is lumen, and 3 is valve body, and 4 is valve gap, and 5 is V-shaped seal ring, and 6 is valve rod, and 7 is handwheel, and 8 is outlet flow, and 9 is flap, and 10 is valve seat, and 11 is tapered sealing pair.
[embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
Shown in Figure 1, a kind of improved stop valve, comprise: valve body 3, valve gap 4, valve rod 6, handwheel 7, valve gap is installed on the valve body, handwheel is fixedly mounted on the valve rod, and valve rod matches with valve gap, and spool is fixed on the lower end of valve rod, described flap 9 profiles are small top and big bottom cone type column structure, and described valve seat 10 is provided with the tapered sealing pair 11 that matches with the flap surface of contact.The tapered angle of described flap is the 15-75 degree, and for example flap adopts 45 °, 50 ° or 60 ° of tapered flaps.The runner inner wall of described valve body is lined with a fluoroplastics layer.
Flap adopts tapered flap, makes the impact area of inlet's fluid and flap reduce half, and nearly the fluid of half is from conical surface incision lumen, and this will make the flow resistance and the system energy consumption that enter in the lumen greatly reduce.
Tapered sealing pair not only can make sealing state more reliable, the design of wide-angle conical surface seal will reduce impurity in the fluid greatly and be attached to probability on the sealing surface, thereby has reduced impurity has prolonged valve to the infringement of sealing surface working life.
Claims (2)
1, a kind of improved stop valve, comprise: valve body, valve seat, valve gap, valve rod, handwheel and flap, it is characterized in that: described flap profile is small top and big bottom cone type column structure, and described valve seat is provided with the tapered sealing pair that matches with the flap surface of contact.
2, a kind of improved stop valve according to claim 1, it is characterized in that: the tapered angle of described flap is the 15-75 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067925U CN201391613Y (en) | 2009-02-20 | 2009-02-20 | Improved stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920067925U CN201391613Y (en) | 2009-02-20 | 2009-02-20 | Improved stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391613Y true CN201391613Y (en) | 2010-01-27 |
Family
ID=41598438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920067925U Expired - Fee Related CN201391613Y (en) | 2009-02-20 | 2009-02-20 | Improved stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391613Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401919A (en) * | 2014-11-24 | 2015-03-11 | 杭州中亚机械股份有限公司 | Filling valve |
| CN113932061A (en) * | 2021-11-26 | 2022-01-14 | 江苏润鹏机械科技有限公司 | Conical valve clack stop valve |
-
2009
- 2009-02-20 CN CN200920067925U patent/CN201391613Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401919A (en) * | 2014-11-24 | 2015-03-11 | 杭州中亚机械股份有限公司 | Filling valve |
| CN104401919B (en) * | 2014-11-24 | 2016-03-23 | 杭州中亚机械股份有限公司 | A kind of filling valve |
| CN113932061A (en) * | 2021-11-26 | 2022-01-14 | 江苏润鹏机械科技有限公司 | Conical valve clack stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20140220 |