CN201679976U - Double-flat friction-free thermal recovery gate valve - Google Patents
Double-flat friction-free thermal recovery gate valve Download PDFInfo
- Publication number
- CN201679976U CN201679976U CN2010201081624U CN201020108162U CN201679976U CN 201679976 U CN201679976 U CN 201679976U CN 2010201081624 U CN2010201081624 U CN 2010201081624U CN 201020108162 U CN201020108162 U CN 201020108162U CN 201679976 U CN201679976 U CN 201679976U
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- dull
- stereotyped
- wedge
- plane
- flashboard
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Abstract
The utility model relates to a thermal recovery gate valve, in particular to a double-flat friction-free thermal recovery gate valve, which belongs to the field of manufacture of the liquid pipeline valve. The double-flat friction-free thermal recovery gate valve comprises a hand wheel, a bracket, a valve stem, a compression spring, a wedge head, two gate flats, a valve body, an alloy sealing layer and a tension spring, and is characterized in that the compression spring is arranged between the tops of the two gate flats and the traditional stepped surface of the wedge head, a V-shaped inclined wedge surface arranged on the top of the wedge head of the valve stem and a V-shaped inclined wedge surface arranged between the opposite surfaces of the two gate flats have identical inclinations and are engaged mutually, and the tension spring is arranged between the two gate flats. The utility model has the advantages of good sealing performance, long service life, simple processing technology, small valve stem sealing force, small valve stem lifting force and the like.
Description
Technical field
The utility model relates to a kind of thermal recovery gate valve, relates in particular to a kind of two dull and stereotyped friction thermal recovery gate valve that do not have, and belongs to the fluid pipeline valve and makes the field.
Background technique
Be widely used in the thermal recovery control gate valve in the fluid pipeline at present, its switching form roughly is divided into: one, the valve rod that pushes away in the gate valve of wedge moves down, and the V-arrangement inclined-plane of its lower end moves down the back that is meshed with the v-seal inclined-plane that is provided with in the middle of the double-flashboard and promotes double-flashboard and move down; The corresponding V-arrangement inclined-plane closure of realization liquid flow path of fitting on the inclined-plane that is provided with by the double-flashboard outer side surface and the brake valve body.Otherwise move Surface of action on the valve rod and throw off the open-minded of realization liquid flow path.Two, the valve rod in the gate valve with two flat plates moves down the two flat boards of compressing and moves down, make symmetrical reversed V-shape wedge on two dull and stereotyped and faces push away the inclined-plane with the fixedly reversed V-shape wedge inclined-plane that is arranged on valve body lower end between the extruding of fitting, form active force and reaction force in moving.Transverse component in this reaction force promotes two dull and stereotypedly separately and in opposite directions move to both sides, thereby makes be meshed with turnover valve port vertical seal face in the valve body closure of realization liquid flow path of the vertical seal face in two dull and stereotyped outsides.Push away inclined-plane its active force that moves upward and disappear otherwise move two dull and stereotyped wedges on the valve rod, two flat boards between the effect of extension spring power under merge and Surface of action thrown off realize the open-minded of liquid flow path.Yet no matter their total drawback of which kind of switching form is: all exist the engagement tangential relative movement of moment between sealing surface and sealed, thereby all exist the engagement tangent direction friction opposite with moving direction of moment.This friction has caused the abrasion aggravation between two sealing surfaces, causes the leakage of liquid, gate valve is lost open and close function and loses efficacy.Therefore this gate valve exists poor sealing performance, short shortcoming of life-span.Since above-mentioned gate valve with two flat plates move down or on must overcome the wedge inclined-plane when moving valve rod and wedge pushes away between the inclined-plane, two frictional force and two surface friction drag between sealing surface and sealed, thereby gate valve with two flat plates also exists the shortcoming that the seal force that acts on the valve rod is big, lifting force is big.Because the wedge inclined-plane of above-mentioned gate valve with two flat plates is arranged on the bottom in the valve body, thereby gate valve with two flat plates also exists the shortcoming of processing technology complexity.Therefore, design no tangent direction friction power between a kind of closing seam face, act on the seal force on the valve rod and lifting force is all less and the simple thermal recovery gate valve of processing technology is necessary.
Summary of the invention
In technical deficiency closed and that exist when opening, change the switching forms of motion of traditional double plate valve at present thermal recovery gate valve, avoid the tangent direction friction between the closing seam face effectively, the utility model provides a kind of two dull and stereotyped friction thermal recovery gate valve that do not have.
To achieve these goals, the technological scheme that the utility model adopted is: it comprises that handwheel, support, valve rod, stage clip, wedge head, flashboard, valve body, alloy sealing layer, extension spring constitute.It is characterized in that between the transition bench terrace of described double-flashboard top and valve rod and wedge head stage clip being set; The V-arrangement wedge inclined-plane gradient that is provided with between the V-arrangement wedge inclined-plane that described valve rod wedge head top is provided with and the two dull and stereotyped flashboard opposing sides is identical, and is meshing with each other; Be provided with extension spring between described two dull and stereotyped flashboard.
In the utility model, described two dull and stereotyped flashboards are depressed into the valve body bottom by stage clip with double-flashboard earlier in the throttle down process, drive the flashboard side direction away from outside translation by the V-arrangement wedge inclined-plane on the extruding of the V-arrangement wedge inclined-plane on the wedge head flashboard again; Described double-flashboard earlier by the laterally closer inside translation of extension spring pulling flashboard, drives flashboard straight up by the wedge-shaped blocks that valve rod is provided with again in the Open valve process.When closed and unlatching, there is not tangential relative movement not have tangent direction friction power between vertical sealed that thereby the vertical seal face of having realized two dull and stereotyped both sides flashboard and valve body are imported and exported.
Advantage such as the utlity model has that good seal performance, long service life, processing technology are simple, the closed thrust of valve rod and lifting force are all less.
Description of drawings
Accompanying drawing 1 is the utility model broken section structural representation.
Accompanying drawing 2 is an accompanying drawing 1A-A cross-sectional view.
In accompanying drawing 1,2: 1 handwheel, 2 supports, 3 valve rods, 4 stage clips, 5 wedge heads, 6 flashboards, 7 valve bodies, 8 alloy sealing layers, 9 extension springs.
Embodiment
As shown in Figure 1, between the transition bench terrace of double-flashboard 6 tops and valve rod 3 and wedge head 5 stage clip 4 is set, the transition bench terrace extruding stage clip 4 when closing gate valve on the valve rod 3 drives flashboard and moves down into valve body 7 bottoms; Because in the descending process, flashboard 6 is not subjected to lateral compression power, thereby has guaranteed that flashboard 6 does not rub mutually with valve body 7 sides.Valve rod 3 lower ends are provided with wedge head 5, the V-arrangement wedge inclined-plane that is provided with between the V-arrangement wedge inclined-plane that the top of wedge head 5 is provided with and two dull and stereotyped two flashboards 6 be meshed (angle of V-arrangement wedge inclined-plane and vertical direction is less than 15 ° generally speaking); When flashboard 6 moved to valve body 7 bottoms, the V-arrangement wedge inclined-plane that the top of wedge head 5 is provided with pushed the V-arrangement wedge inclined-plane that is provided with between two flashboards 6, made flashboard 6 side direction away from outside translation and throttle down.As shown in Figure 2, between two flashboards 6 of two flat boards, be provided with two extension springs 9; When moving on the valve rod 3, the V-arrangement wedge inclined-plane between two flashboards 6 is not subjected to the extruding force on V-arrangement wedge inclined-plane, wedge head 5 top, the inwardly translation mutually of extension spring 9 pulling flashboards, 6 side direction; Move up by the wedge-shaped blocks pulling flashboard 6 that is provided with on the valve rod 3 again and open valve.In the utility model, flashboard 6 is depressed into the valve body bottom by stage clip 4 with double-flashboard 6 earlier in the throttle down process, drives flashboard 6 side direction away from outside translation by the V-arrangement wedge inclined-plane on the extruding of the V-arrangement wedge inclined-plane on the wedge head 5 flashboard 6 again; Flashboard 6 earlier by the 6 laterally closer inside translations of extension spring 9 pulling flashboards, drives flashboard 6 straight up by the wedge-shaped blocks that valve rod 3 is provided with again in the Open valve process.Thereby between the alloy sealing layer 8 that the sealing surface of having realized two dull and stereotyped both sides flashboard 6 and valve body 7 are imported and exported closed and do not have tangential relative movement not have tangent direction friction power when separating.The upper and lower decision that turns to of moving of valve rod 3 in the said process by handwheel 1.Support 2 is fixedly connected with valve body 7.
Claims (5)
1. one kind two dull and stereotyped is not had a friction thermal recovery gate valve, and it comprises handwheel, support valve rod, stage clip, wedge head, flashboard, valve body, alloy sealing layer, extension spring, it is characterized in that between the transition bench terrace of described double-flashboard top and valve rod and wedge head stage clip being set; Be provided with extension spring between described two dull and stereotyped flashboard; Design forming V-shape wedge inclined-plane between described valve rod wedge head top design forming V-shape wedge inclined-plane, the two dull and stereotyped flashboard opposing side.
2. a kind of two dull and stereotyped friction thermal recovery gate valves that do not have according to claim 1 is characterized in that the V-arrangement wedge inclined-plane gradient that is provided with between V-arrangement wedge inclined-plane that described valve rod wedge head top is provided with and pair dull and stereotyped flashboard opposing sides is identical, and are meshing with each other.
3. a kind of two dull and stereotyped friction thermal recovery gate valves that do not have according to claim 1 is characterized in that the extension spring that is provided with between the described pair of two dull and stereotyped flat boards can be one, also can be many of symmetry.
4. a kind of two dull and stereotyped friction thermal recovery gate valves that do not have according to claim 1 and 2, the angle that it is characterized in that the V-arrangement wedge inclined-plane that is provided with between V-arrangement wedge inclined-plane that the top of wedge head is provided with and pair dull and stereotyped two flashboards and vertical direction is less than 15 °.
5. a kind of two dull and stereotyped friction thermal recovery gate valves that do not have according to claim 1 and 2, it is characterized in that the V-arrangement wedge inclined-plane that is provided with between V-arrangement wedge inclined-plane that described valve rod wedge head top is provided with and the two dull and stereotyped flashboard opposing side only when flashboard moves to the valve body bottom, just intermeshing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201081624U CN201679976U (en) | 2010-02-02 | 2010-02-02 | Double-flat friction-free thermal recovery gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201081624U CN201679976U (en) | 2010-02-02 | 2010-02-02 | Double-flat friction-free thermal recovery gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679976U true CN201679976U (en) | 2010-12-22 |
Family
ID=43345020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201081624U Expired - Fee Related CN201679976U (en) | 2010-02-02 | 2010-02-02 | Double-flat friction-free thermal recovery gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679976U (en) |
-
2010
- 2010-02-02 CN CN2010201081624U patent/CN201679976U/en not_active Expired - Fee Related
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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: 20101222 Termination date: 20140202 |