CN207795151U - A kind of head valve based on sealing - Google Patents
A kind of head valve based on sealing Download PDFInfo
- Publication number
- CN207795151U CN207795151U CN201721846738.5U CN201721846738U CN207795151U CN 207795151 U CN207795151 U CN 207795151U CN 201721846738 U CN201721846738 U CN 201721846738U CN 207795151 U CN207795151 U CN 207795151U
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- China
- Prior art keywords
- valve
- valve body
- sealing surface
- spool
- stuffing
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of head valves based on sealing, belong to mechanical preparing technical field.Including valve body and valve deck in top end of the valve body is set, valve-rod cavity is equipped between valve deck and valve body, valve rod is provided in valve-rod cavity, valve rod lower end is equipped with spool, valve rod is integrally formed with spool, and spool is equipped with sealing surface I, and valve body is equipped with the sealing surface II coincideing with sealing surface I with spool contact position；The body top end face is equipped with groove, and valve deck bottom end face is equipped with the protrusion with matching grooves；The valve body top is equipped with stuffing-box, is equipped with metal gasket in the middle part of stuffing-box, promotes filler pressing force to be evenly distributed, the spring vertical with stem movement direction is additionally provided in stuffing-box.Effectively the stability of pipeline work is improved the problems such as pollution, safety caused by solution valve leak.
Description
Technical field
The utility model is related to a kind of head valves, especially, are related to a kind of head valve based on sealing, belong to machinery
Preparing technical field.
Background technology
Head valve is a kind of pipeline accessories, be fluid delivery system in control unit, have cut-off, adjusting, water conservancy diversion,
Prevent the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.It is widely used in chemical industry, oil, metallurgy, mine, electric power, the energy,
In the industrial processes such as environmental protection, for doing connection pressure gauge, measurement and government pressure, and as needed, to pumped (conveying) medium
Pipeline is controlled.And the leakproofness of head valve is most important, consequence caused by seal failure is extremely serious, less serious case
" run, drip, leak " cause the waste of the energy and resource, severe one manipulation can be made to fail, or even generate fire, explosion, environmental pollution
Etc. consequences jeopardize personal safety.
Utility model content
The utility model aims to solve the problem that prior art problem, and proposes a kind of head valve based on sealing.Pass through this
The setting of technical solution effectively improves the stabilization of pipeline work caused by solution valve leak the problems such as pollution, safety
Property.
A kind of head valve based on sealing, including valve body and valve deck in top end of the valve body is set, between valve deck and valve body
Equipped with valve-rod cavity, valve rod is provided in valve-rod cavity, valve rod lower end is equipped with spool, and valve rod is integrally formed with spool, is set on spool
There are sealing surface I, valve body to be equipped with the sealing surface II coincideing with sealing surface I with spool contact position；The body top end face is equipped with recessed
Slot, valve deck bottom end face are equipped with the protrusion with matching grooves；The valve body top is equipped with stuffing-box, and metal is equipped in the middle part of stuffing-box
Gasket, promotes filler pressing force to be evenly distributed, and the spring vertical with stem movement direction is additionally provided in stuffing-box.
Further, the valve body and valve deck are by flange or threaded connection, and gasket is equipped between valve body and valve deck.
Further, the spool is wedge shape.
Further, I width of the sealing surface is more than II width of sealing surface, and I hardness of sealing surface is greater than or equal to sealing surface
II hardness.
Further, the groove is arranged at the middle part in top end of the valve body face.
Further, the protrusion is arranged at the middle part of valve deck bottom face.
Further, flexible graphite packing or carbon fiber filler are equipped in the stuffing-box.
Further, flexible graphite gasket is equipped between the stuffing-box and valve interior wall.
Using the technical program, the advantageous effects brought are：
1）By the setting of the technical program, effectively improved the problems such as pollution, safety caused by solution valve leak
The stability of pipeline work；
2）In the present invention, valve rod is integrally formed with spool and is arranged, and effectively improves what valve mechanism was turned on and off
Stability solves the sealing problem between valve rod and spool.Spool is equipped with sealing surface I, and valve body is equipped with spool contact position
The sealing surface II coincideing with sealing surface I effectively solves the sealing problem between spool and valve body, and spool is wedge shape, promotes valve
Core is closed even closer with valve body；
3）In the present invention, body top end face is equipped with groove, and the middle part in top end of the valve body face is arranged in groove；Valve deck
Bottom end face is equipped with the protrusion with matching grooves, and protrusion is arranged at the middle part of valve deck bottom face, increases between valve body and valve deck
Leakproofness；
4）In the present invention, valve deck top is equipped with stuffing-box, is equipped with metal gasket in the middle part of stuffing-box, promotes filler pressure
Clamp force is evenly distributed；The spring vertical with stem movement direction is equipped in stuffing-box, valve rod is effectively relieved to filling out in the setting of spring
Expect the impact force of letter, meanwhile, when occurring gap between valve rod and stuffing-box, stuffing-box supplemental force is given, increases valve rod and filler
Active force between letter, and then increase leakproofness between valve rod and stuffing-box.Soft graphite pad is equipped between stuffing-box and valve rod
Piece has fabulous sealing performance, and its available temperature range is wider, and usable range is at -200 DEG C~450 DEG C in air,
Can be to 3000 DEG C in vacuum or reducibility gas, and coefficient of thermal expansion is small, at low temperature not embrittlement, do not burst, at high temperature not
Softening, not creep, and then effectively improve the airtight quality of this head valve；
5）In the present invention, it is equipped with gasket between valve body and valve deck, increases the leakproofness between valve body and valve deck；
6）In the present invention, flexible graphite packing or carbon fiber filler, such packing seal are equipped in stuffing-box
Can be good, tolerance is strong.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model
In figure, 1, valve body, 2, valve deck, 3, valve-rod cavity, 4, valve rod, 5, spool, 6, sealing surface I, 7, sealing surface II, 8, recessed
Slot, 9, protrusion, 10, stuffing-box, 101, metal gasket, 102, spring, 11, gasket, 12, flexible graphite gasket.
Specific implementation mode
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Based on the reality in the utility model
Example is applied, all other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
Embodiment 1
A kind of head valve based on sealing, including valve body 1 and valve deck 2 on 1 top of valve body is set, valve deck 2 and valve body 1
Between be equipped with valve-rod cavity 3, be provided with valve rod 4 in valve-rod cavity 3,4 lower end of valve rod is equipped with spool 5, valve rod 4 and 5 one of spool at
Type, spool 5 are equipped with sealing surface I 6, and valve body 1 is equipped with the sealing surface II 7 coincideing with sealing surface I 6 with 5 contact position of spool；The valve
1 top end surface of body is equipped with groove 8, and 2 bottom end face of valve deck is equipped with and groove 8 matched raised 9；1 top of the valve body is equipped with and fills out
Expect that letter 10, the middle part of stuffing-box 10 are equipped with metal gasket 101, filler pressing force promoted to be evenly distributed, be additionally provided in stuffing-box 10 with
The vertical spring 102 in stem movement direction.
Embodiment 2
A kind of head valve based on sealing, including valve body 1 and valve deck 2 on 1 top of valve body is set, valve deck 2 and valve body 1
Between be equipped with valve-rod cavity 3, be provided with valve rod 4 in valve-rod cavity 3,4 lower end of valve rod is equipped with spool 5, valve rod 4 and 5 one of spool at
Type, spool 5 are equipped with sealing surface I 6, and valve body 1 is equipped with the sealing surface II 7 coincideing with sealing surface I 6 with 5 contact position of spool；The valve
1 top end surface of body is equipped with groove 8, and 2 bottom end face of valve deck is equipped with and groove 8 matched raised 9；1 top of the valve body is equipped with and fills out
Expect that letter 10, the middle part of stuffing-box 10 are equipped with metal gasket 101, filler pressing force promoted to be evenly distributed, be additionally provided in stuffing-box 10 with
The vertical spring 102 in stem movement direction.
The valve body 1 and valve deck 2 are equipped with gasket 11 by flange or threaded connection between valve body 1 and valve deck 2.
The groove 8 is arranged at the middle part of 1 top end face of valve body.
Described raised 9 are arranged at the middle part of 2 bottom face of valve deck.
Flexible graphite packing is equipped in the stuffing-box 10.
Flexible graphite gasket 12 is equipped between 1 inner wall of the stuffing-box 10 and valve body.
Embodiment 3
A kind of head valve based on sealing, including valve body 1 and valve deck 2 on 1 top of valve body is set, valve deck 2 and valve body 1
Between be equipped with valve-rod cavity 3, be provided with valve rod 4 in valve-rod cavity 3,4 lower end of valve rod is equipped with spool 5, valve rod 4 and 5 one of spool at
Type, spool 5 are equipped with sealing surface I 6, and valve body 1 is equipped with the sealing surface II 7 coincideing with sealing surface I 6 with 5 contact position of spool；The valve
1 top end surface of body is equipped with groove 8, and 2 bottom end face of valve deck is equipped with and groove 8 matched raised 9；1 top of the valve body is equipped with and fills out
Expect that letter 10, the middle part of stuffing-box 10 are equipped with metal gasket 101, filler pressing force promoted to be evenly distributed, be additionally provided in stuffing-box 10 with
The vertical spring 102 in stem movement direction.
The spool 5 is wedge shape.
I 6 width of the sealing surface is more than II 7 width of sealing surface, and it is hard that I 6 hardness of sealing surface is greater than or equal to sealing surface II 7
Degree.
Carbon fiber filler is equipped in the stuffing-box 10.
Embodiment 4
A kind of head valve based on sealing, including valve body 1 and valve deck 2 on 1 top of valve body is set, valve deck 2 and valve body 1
Between be equipped with valve-rod cavity 3, be provided with valve rod 4 in valve-rod cavity 3,4 lower end of valve rod is equipped with spool 5, valve rod 4 and 5 one of spool at
Type, spool 5 are equipped with sealing surface I 6, and valve body 1 is equipped with the sealing surface II 7 coincideing with sealing surface I 6 with 5 contact position of spool；The valve
1 top end surface of body is equipped with groove 8, and 2 bottom end face of valve deck is equipped with and groove 8 matched raised 9；1 top of the valve body is equipped with and fills out
Expect that letter 10, the middle part of stuffing-box 10 are equipped with metal gasket 101, filler pressing force promoted to be evenly distributed, be additionally provided in stuffing-box 10 with
The vertical spring 102 in stem movement direction.
The valve body 1 and valve deck 2 are equipped with gasket 11 by flange or threaded connection between valve body 1 and valve deck 2.
The spool 5 is wedge shape.
I 6 width of the sealing surface is more than II 7 width of sealing surface, and it is hard that I 6 hardness of sealing surface is greater than or equal to sealing surface II 7
Degree.
Flexible graphite packing is equipped in the stuffing-box 10.
Flexible graphite gasket 12 is equipped between 1 inner wall of the stuffing-box 10 and valve body.
Embodiment 5
As shown in Figure 1：A kind of head valve based on sealing, including valve body 1 and valve deck 2 on 1 top of valve body is set, valve
It is equipped with valve-rod cavity 3 between lid 2 and valve body 1, valve rod 4 is provided in valve-rod cavity 3,4 lower end of valve rod is equipped with spool 5, valve rod 4 and valve
Core 5 is integrally formed, and spool 5 is equipped with sealing surface I 6, and valve body 1 is equipped with the sealing surface coincideing with sealing surface I 6 with 5 contact position of spool
Ⅱ7；1 top end surface of the valve body is equipped with groove 8, and 2 bottom end face of valve deck is equipped with and groove 8 matched raised 9；The valve body 1
Top is equipped with stuffing-box 10, and 10 middle part of stuffing-box is equipped with metal gasket 101, promotes filler pressing force to be evenly distributed, stuffing-box 10
Inside it is additionally provided with the spring 102 vertical with stem movement direction.
The valve body 1 and valve deck 2 are equipped with gasket 11 by flange or threaded connection between valve body 1 and valve deck 2.
The spool 5 is wedge shape.
I 6 width of the sealing surface is more than II 7 width of sealing surface, and it is hard that I 6 hardness of sealing surface is greater than or equal to sealing surface II 7
Degree.
The groove 8 is arranged at the middle part of 1 top end face of valve body.
Described raised 9 are arranged at the middle part of 2 bottom face of valve deck.
Carbon fiber filler is equipped in the stuffing-box 10.
Flexible graphite gasket 12 is equipped between 1 inner wall of the stuffing-box 10 and valve body.
Claims (8)
1. a kind of head valve based on sealing, it is characterised in that：Including valve body（1）And it is arranged in valve body（1）The valve deck on top
（2）, valve deck（2）With valve body（1）Between be equipped with valve-rod cavity（3）, valve-rod cavity（3）Inside it is provided with valve rod（4）, valve rod（4）Lower end
Equipped with spool（5）, valve rod（4）With spool（5）It is integrally formed, spool（5）It is equipped with sealing surface I（6）, valve body（1）With spool（5）
Contact position is equipped with and sealing surface I（6）Identical sealing surface II（7）；The valve body（1）Top end surface is equipped with groove（8）, valve deck
（2）Bottom end face is equipped with and groove（8）Matched protrusion（9）；The valve body（1）Top is equipped with stuffing-box（10）, stuffing-box
（10）Middle part is equipped with metal gasket（101）, stuffing-box（10）Inside it is additionally provided with the spring vertical with stem movement direction（102）.
2. head valve according to claim 1, it is characterised in that：The valve body（1）With valve deck（2）Pass through flange or spiral shell
Line connects, and valve body（1）With valve deck（2）Between be equipped with gasket（11）.
3. head valve according to claim 1, it is characterised in that：The spool（5）For wedge shape.
4. head valve according to claim 1, it is characterised in that：The sealing surface I（6）Width is more than sealing surface II
（7）Width, sealing surface I（6）Hardness is greater than or equal to sealing surface II（7）Hardness.
5. head valve according to claim 1, it is characterised in that：The groove（8）It is arranged in valve body（1）Top end face
Middle part.
6. head valve according to claim 1, it is characterised in that：The protrusion（9）It is arranged in valve deck（2）Bottom face
Middle part.
7. head valve according to claim 1, it is characterised in that：The stuffing-box（10）It is interior to be equipped with flexible graphite packing
Or carbon fiber filler.
8. head valve according to claim 1, it is characterised in that：The stuffing-box（10）With valve body（1）Between inner wall
Equipped with flexible graphite gasket（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846738.5U CN207795151U (en) | 2017-12-26 | 2017-12-26 | A kind of head valve based on sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721846738.5U CN207795151U (en) | 2017-12-26 | 2017-12-26 | A kind of head valve based on sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795151U true CN207795151U (en) | 2018-08-31 |
Family
ID=63278700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721846738.5U Expired - Fee Related CN207795151U (en) | 2017-12-26 | 2017-12-26 | A kind of head valve based on sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374937A (en) * | 2019-08-15 | 2019-10-25 | 新疆玉象胡杨化工有限公司 | Shower device is led in liquid ammonium nitrate pump inlet |
| CN112780784A (en) * | 2020-12-30 | 2021-05-11 | 高晓东 | Throttle valve for agricultural planting drip irrigation system |
-
2017
- 2017-12-26 CN CN201721846738.5U patent/CN207795151U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374937A (en) * | 2019-08-15 | 2019-10-25 | 新疆玉象胡杨化工有限公司 | Shower device is led in liquid ammonium nitrate pump inlet |
| CN112780784A (en) * | 2020-12-30 | 2021-05-11 | 高晓东 | Throttle valve for agricultural planting drip irrigation system |
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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: 20180831 Termination date: 20201226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |