CN105782474B - Low temperature stop valve - Google Patents
Low temperature stop valve Download PDFInfo
- Publication number
- CN105782474B CN105782474B CN201610343515.0A CN201610343515A CN105782474B CN 105782474 B CN105782474 B CN 105782474B CN 201610343515 A CN201610343515 A CN 201610343515A CN 105782474 B CN105782474 B CN 105782474B
- Authority
- CN
- China
- Prior art keywords
- sealing
- low temperature
- stop valve
- temperature stop
- flap
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
- F16K1/465—Attachment of sealing rings to the valve seats
Abstract
This application discloses a kind of low temperature stop valve, the valve seat of limbers and the flap above limbers are provided with including middle part, valve seat is provided with seal assembly between one end of flap and flap, seal assembly includes seal, seal includes the first sealing and the second sealing, seal assembly also includes being used for the extrusion for extruding the first sealing, and the second sealing is used for top pressure extrusion.Low temperature stop valve provided by the invention, by driving flap to be moved to close to limbers, so that the first sealing contacts with extrusion, and with the motion of flap to contact between extrusion and the first sealing it is more and more tighter, sealing i.e. between the two is become better and better, while low temperature stop valve is in use for some time, as closing forces make the first sealing compression forming, second sealing can top pressure on extrusion, reach the effect of dual compound seal.
Description
Technical field
The disclosure relates generally to water supply installation technical field, and in particular to valve technology field, more particularly to low temperature cut-out
Valve.
Background technology
As freshwater resources situation in short supply is gradually showing, the saving use of water resource is very urgent.Save
On the one hand water resource is to be paid attention to by water resource user with outside water, using water wisely, it is also necessary to ensure water resource in conveyer
Ensure not leak for during, so that farthest saving water resource.At present, freshwater resources such as resident uses originally
Water, running water is typically delivered to by every household by tap water supply device, water supply installation includes conveyance conduit and valve, wherein
Valve is used for controlling the state of running water, such as cut-off or shunt regulating.
In the prior art, tap water pipeline valve, usual material are plain cast iron, generally comprise valve body, bonnet, flap,
Valve seat and valve rod, for valve rod through bonnet and with driving flap motion, wherein flap cooperates with valve seat realizes cut-out current
Flowing, reach the purpose cut off the water supply.But stop valve of the prior art, due to affected by environment, especially under severe winter weather,
So that the seal between flap and valve seat tightens, or long-term use make it that seal is impaired serious, causes sealing property to show
Writing reduces, and is leaked out so as to running water occur, can bring no small harm to surrounding enviroment and personal safety, especially now
Skyscraper, once leakage, it will bring disaster to the resident of whole floor.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, it is expected to provide a kind of good seal performance and the cut-out of stable low temperature
Valve.
The present invention provides a kind of low temperature stop valve, including middle part is provided with the valve seat of limbers and above limbers
Flap, valve seat are provided with seal assembly between one end of flap and flap, and seal assembly includes seal, and seal includes the
One sealing and the second sealing, seal assembly also include being used for the extrusion for extruding the first sealing, and the second sealing is used for
Top pressure extrusion.
Low temperature stop valve provided by the invention, by driving flap to move close to limbers so that the first sealing and
Extrusion contacts, and as increasingly tightlier, i.e., between the two the motion of flap to contact between extrusion and the first sealing
Sealing become better and better, while low temperature stop valve is in use for some time, as closing forces are compressed into the first sealing
Type, the second sealing can top pressure on extrusion, reach the effect of dual compound seal.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 low temperature stop valve view in full section provided by the invention.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
It is easy to describe, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 low temperature stop valve view in full section provided by the invention, Fig. 1 being refer to, the present embodiment provides a kind of low temperature stop valve,
Be provided with the valve seat 2 of limbers 15 and the flap 3 positioned at limbers 15 above including middle part, valve seat 2 close to one end of flap 3 and
Seal assembly is provided between flap 3, seal assembly includes seal, and seal includes the first sealing 12 and the second sealing
13, seal assembly also includes being used for the extrusion 14 for extruding the first sealing 12, and the second sealing 13 is used for top pressure extrusion 14.
Low temperature stop valve generally comprises valve body 1, bonnet 7, flap 3, valve stem nut 10, valve seat 2 and valve rod 5, flap 3,
Valve seat 2 and valve rod 5 are arranged in valve body 1, and bonnet 7 is fixedly connected with valve body 1, and valve rod 5 is through bonnet 7 and passes through valve clack cover 4
Achieve a fixed connection on flap 3, valve stem nut 10 is threadedly coupled with valve rod 5, and when rotating handwheel 11, valve rod 5 drives flap 3 to transport
Dynamic, wherein flap 3 cooperates with valve seat 2 and realizes the flowing of cut-out current.
In the present embodiment, the middle part of valve seat 2 is provided with limbers 15, and limbers 15 is used for that the water inlet of stop valve will be entered
Running water is incorporated into delivery port, and flap 3 cooperates with valve seat 2, realizes the cut-off to running water with passing through.Typically pass through handwheel
11 band ovable valve stems 5, valve rod 5 drives flap 3 to move, by driving flap 3 to be moved to close to limbers 15 so that the first sealing
12 contact with extrusion 14, and as the motion of flap 3 to contact between extrusion 14 and the first sealing 12 increasingly tightlier,
Sealing i.e. between the two is become better and better, while low temperature stop valve is in use for some time, with closing forces make it is first close
The compression forming of envelope portion 12, the second sealing 13 can top pressure on extrusion 14, reach the effect of dual compound seal.
Preferably, the first sealing 12 is included being sheathed on flap 3 close to the band of one end of valve seat 2, the second sealing
Portion 13 is connected with one end away from limbers 15 on band and is located at the top of end face of the extrusion 14 away from limbers 15,
It is more than the diameter of the end face of close limbers 15 on band on band with the diameter of the junction of the second sealing 13.
In the present embodiment, band has certain thickness, and band is sheathed on flap 3 close to one end of valve seat 2,
When valve rod 5 drives flap 3 to be moved to valve seat 2, band is contacted with the extrusion 14 on valve seat 2 and gradually closely mutually squeezed
Pressure so that seal effect between the two reaches optimal.Wherein, the diameter on band with the junction of the second sealing 13
More than the diameter of the end face of close limbers 15 on band, i.e. the section of band and the axis of limbers 15 tilts, real
Showed between band and extrusion 14 sealing property to adjust, such as after long-time use, between band and extrusion 14 by
Cause both a certain degree of abrasion to be present in friction, cause when valve rod 5 is re-moved to identical position, valve seat 2 and valve
Sealing property between valve 3 declines, and the band provided in the present embodiment can solve the above problems, it is only necessary to by valve rod 5 again
A part is moved toward valve seat 2, the part now contacted with extrusion 14 is the band part bigger than diameter before, then
The squeezed tight of secondary realization between the two, ensures sealing.
Preferably, on band with the end face on the junction of the second sealing 13 to band close to limbers 15
Diameter linearly reduces, and the second sealing 13 includes the first sealing ring.
In the present embodiment, on band with the junction of the second sealing 13 to band close to the one of limbers 15
The diameter of end face linearly reduces, i.e., band is the circular cone band without top so that matching somebody with somebody between extrusion 14 and band
Conjunction is more accurate, and sealing effectiveness is relatively good and more stable.
Preferably, the first sealing 12 is formed in one with the second sealing 13.
In the present embodiment, the first sealing 12 is formed in one with the second sealing 13, seal can be easy to be arranged on
On flap 3, while also increase seal overall structure stability and wear and shock-resistant performance.
Preferably, extrusion 14 includes the second sealing ring, and the second sealing ring is fixed close to the side of valve seat 2 and valve seat 2 to be connected
Connect.
In the present embodiment, the second sealing ring is fixedly connected close to the side of valve seat 2 with valve seat 2, opposite side and seal
Extruding.Wherein, the 3rd groove can be provided with valve seat 2, the bottom of the second sealing ring is fixed in the 3rd groove.In the present embodiment,
Extrusion 14 is preferably the second sealing ring, because sealing ring is flexible and preferable screen resilience, and wear-resisting, be can be achieved and sealing
Both deformation during extruding between ring so that both in extruding with certain buffering effect, reduce between the two
Existing hardness abrasion, so as to increase the service life and sealing property.Certainly, extrusion 14 can also be harder by wear-resisting and quality
Material is made, and can also realize the effect of tight seal.
Preferably, bonnet 7 is arranged and on valve rod 5, bonnet 7 is provided with the first groove 8 close to the part of valve rod 5, and first is recessed
The 3rd sealing ring is provided with groove 8, the ring width of the 3rd sealing ring is more than the groove width of the first groove 8.
When the valve is open, running water can be overflowed by the gap between valve rod 5 and bonnet 7, so as to waste water resource.
In the present embodiment, be provided with the 3rd sealing ring in the first groove 8, the ring width of the 3rd sealing ring more than the first groove 8 groove width, i.e., the
Three sealing rings are constantly in the state being extruded so that the connection between sealing ring and valve rod 5, bonnet 7 is closer, and increase is close
Sealing property.
Preferably, be provided with multiple 3rd sealing rings between bonnet 7 and valve rod 5, the 3rd sealing ring include V-seal ring or
O-shaped sealing ring, low temperature stop valve also include the gland 9 for being fixedly connected on bonnet 7, and the top pressure of gland 9 is in the 3rd sealing ring.
In the present embodiment, multiple the 3rd stacked sealing rings are provided with the first groove 8, the 3rd sealing ring can be that V-type is close
Seal ring or O-shaped sealing ring, further prevent running water from leaking, or the 3rd sealing ring can be V-seal ring and O-shaped sealing
Ring, combination sealing pair is formed, considerably improves sealing property.The top pressure of gland 9 is fixed with bonnet 7 and connected in the 3rd sealing ring
Connect, concretely bolt connection etc..The 3rd sealing ring that gland 9 is pointed in the first groove 8 applies certain pressure so that the
Sealing property lifting between the 3rd sealing ring and valve rod 5 and bonnet 7 in one groove 8.
Preferably, valve body 1 is provided with the second groove close to the end face of bonnet 7, and bonnet 7 is provided with close to the end face of valve body 1
Projection, projection are plugged in the second groove.
In the present embodiment, coordinated between valve body 1 and bonnet 7 by the raised mutual limitation with the second groove so that valve
Be not susceptible to relatively move between body 1 and bonnet 7, and then increase the kinematic accuracy of valve rod 5, it is final ensure valve seat 2 and flap 3 it
Between sealing stability.Further, be additionally provided with sealing gasket 6 between raised and the second groove, can effectively prevent running water from
Junction between valve body 1 and bonnet 7 is overflowed, and avoids causing water resource waste.
Preferably, bonnet 7 is formed in one respectively with valve body 1, and sealing gasket 6 is fluoroplastics sealing gasket 6, and the 3rd sealing ring is
Fluoroplastics sealing ring.
Ordinary carbon steel cold short phenomenon under worst cold case is extremely serious, past under the severe use condition of cold, burn into
Toward housing easy fracture, especially flange neck, fracture produces leakage, and service life is short, it is impossible to meets permanently effective pumped (conveying) medium
Particular/special requirement.In the present embodiment, bonnet 7 uses low temperature carbon steel material with valve body 1, and it is applied to 50~345 DEG C of ﹣ ring
In border, cold environment can be well adapted for, stability in use and life-span can extend.The chemical property Ji Wen of fluoroplastics Ding ﹐
Etch resistant properties are especially good, softness can be all kept in low temperature and hot environment, make it have service life length, good seal performance
The advantages that, therefore sealing gasket 6 is both preferably fluoroplastics material with the 3rd sealing ring and is made in the application.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (9)
1. a kind of low temperature stop valve, including middle part are provided with the valve seat of limbers and the flap above the limbers, its
It is characterised by, the valve seat is provided with seal assembly, the seal assembly bag between one end of the flap and the flap
Seal is included, the seal includes the first sealing and the second sealing, and the seal assembly also includes described for extruding
The extrusion of first sealing, second sealing are used for extrusion described in top pressure；
First sealing is included being sheathed on the flap close to the band of one end of the valve seat, second sealing
Portion is connected with one end away from the limbers on the band and is located at the one end of the extrusion away from the limbers
The top in face, it is more than with the diameter of the junction of second sealing on the band close to described logical on the band
The diameter of the end face in water hole.
2. low temperature stop valve according to claim 1, it is characterised in that on the band with second sealing
Junction linearly reduces to the diameter of the end face of the close limbers on the band, and second sealing includes
First sealing ring.
3. low temperature stop valve according to claim 2, it is characterised in that first sealing and the second sealing are one
It is body formed.
4. low temperature stop valve according to claim 2, it is characterised in that the extrusion includes the second sealing ring, described
Second sealing ring is fixedly connected close to the side of the valve seat with the valve seat.
5. according to the low temperature stop valve described in claim 1-4 any one, it is characterised in that bonnet be arranged with valve rod, institute
State bonnet and be provided with the first groove close to the part of the valve rod, be provided with the 3rd sealing ring in first groove, the described 3rd
The ring width of sealing ring is more than the groove width of first groove.
6. low temperature stop valve according to claim 5, it is characterised in that be provided between the bonnet and the valve rod multiple
3rd sealing ring, the 3rd sealing ring include V-seal ring or O-shaped sealing ring, and the low temperature stop valve also includes
The gland of the bonnet is fixedly connected on, the gland top pressure is in the 3rd sealing ring.
7. low temperature stop valve according to claim 6, it is characterised in that valve body is provided with the close to the end face of the bonnet
Two grooves, the bonnet are provided with projection close to the end face of the valve body, and the projection is plugged in second groove.
8. low temperature stop valve according to claim 7, it is characterised in that described raised also to be set between second groove
There is sealing gasket.
9. low temperature stop valve according to claim 8, it is characterised in that the bonnet is integrated into respectively with the valve body
Type, the sealing gasket are fluoroplastics sealing gasket, and the 3rd sealing ring is fluoroplastics sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343515.0A CN105782474B (en) | 2016-05-20 | 2016-05-20 | Low temperature stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343515.0A CN105782474B (en) | 2016-05-20 | 2016-05-20 | Low temperature stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782474A CN105782474A (en) | 2016-07-20 |
| CN105782474B true CN105782474B (en) | 2018-04-06 |
Family
ID=56379331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610343515.0A Active CN105782474B (en) | 2016-05-20 | 2016-05-20 | Low temperature stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782474B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664698A (en) * | 2020-12-25 | 2021-04-16 | 徐利论 | Low-temperature cut-off valve with convenient inspection and installation structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH543025A (en) * | 1972-03-08 | 1973-10-15 | Klinger Ag | Shut-off valve |
| CN104006174B (en) * | 2014-02-17 | 2016-08-17 | 中亚阀门有限公司 | Stop valve |
| CN104482254A (en) * | 2014-11-28 | 2015-04-01 | 大丰市南亚阀门有限公司 | Multifunctional check valve |
| CN105090542A (en) * | 2015-09-16 | 2015-11-25 | 上海沪东造船阀门有限公司 | Ultralow-temperature stainless steel welding type stop valve for liquefied natural gas ship |
| CN205244407U (en) * | 2015-12-11 | 2016-05-18 | 开封瑞科阀门有限公司 | Ultra -low temperature hand stop valve |
| CN205715716U (en) * | 2016-05-20 | 2016-11-23 | 海安县区域供水有限公司 | Low temperature stop valve |
-
2016
- 2016-05-20 CN CN201610343515.0A patent/CN105782474B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105782474A (en) | 2016-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180201 Address after: No. 146, Changjiang Middle Road, Haian County, Nantong, Jiangsu Applicant after: Li Xiaoxiang Address before: No. 146, Changjiang Middle Road, Haian County, Nantong, Jiangsu Applicant before: HAIAN REGIONAL WATER SUPPLY CO., LTD. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190510 Address after: 226600 Shuanglou Industrial Park, Qutang Town, Haian County, Nantong City, Jiangsu Province (Liuwei Village) Patentee after: Jiangsu Jinshengyuan Special Valves Co., Ltd. Address before: 226600 No. 146 Changjiang Middle Road, Haian County, Nantong City, Jiangsu Province Patentee before: Li Xiaoxiang |
|
| TR01 | Transfer of patent right |