CN207393940U - A kind of high-pressure heater triple-use valve sealing structure - Google Patents
A kind of high-pressure heater triple-use valve sealing structure Download PDFInfo
- Publication number
- CN207393940U CN207393940U CN201720974857.2U CN201720974857U CN207393940U CN 207393940 U CN207393940 U CN 207393940U CN 201720974857 U CN201720974857 U CN 201720974857U CN 207393940 U CN207393940 U CN 207393940U
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- circle
- energy storage
- spring energy
- valve base
- upper valve
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Abstract
A kind of high-pressure heater triple-use valve sealing structure, upper valve base including valve body and in valve body inner bore, groove and lower groove are provided in the side of upper valve base, perfluoroelastomer circle is installed in the upper groove of upper valve base, spring energy storage circle is installed in the lower groove of upper valve base, a block on the downside of spring energy storage circle is mounted on by screw on upper valve base, and upside and the spring energy storage circle of block abut against.By the compound seal form that spring energy storage circle and perfluoroelastomer circle are used between valve body and upper valve base, ensure after upper valve base is packed into body cavity together with spring energy storage circle and perfluoroelastomer circle, the outer diameter of spring energy storage circle and perfluoroelastomer circle after valve body inner bore effect with generating compression deformation；Such seal form have the advantages that sealing force from pressure medium influence of fluctuations, it is simple in structure, be hardly damaged, can greatly improve the reliability sealed between upper valve base and valve body, ensure valve and the long-term normal operation of high-pressure heater.
Description
Technical field：
The utility model is related to a kind of high-pressure heater triple-use valve sealing structures.
Background technology：
Seal between existing high-pressure heater triple-use valve upper valve base 13 and valve body 14 mostly using 11 clamping platen 10 of screw and
The form of self sealss circle 12 is sealed, and ensures triple valve upper valve base 13 and valve body 14 by compressive deformation with self sealss circle 12
Between sealing, pressing plate 10 is bonded with liner plate 9, and transmitting forces to the pendant collet 8 of 14 lumen of valve body, by baffle ring 7 propped up by pendant collet 8
It prevents from coming off.As shown in Figure 1, self sealss circle 12 is pre- next in 11 active force of screw, by medium active force promote upper valve base 13 to
It is sealed between upper compressing self-sealing circle 12 and valve body 14, but when pressure medium fluctuates, self sealss circle 12 is also differed by decrement
It causes, due at 5 lumen position of valve body, the decrement of self sealss circle 12 can not be adjusted by pre-loading screw 11 again, self sealss circle 12 is grown
Phase is in elastic inconsistent state, and self sealss circle 12 squeezes out at gap after longtime running, under the washing away of medium, causes from close
Seal 12 is failed, and the cold water of height plus arrival end flows to boiler at upper valve base 13, and the high efficiency of heating surface added is caused to be damaged, influences to run
Safety.
Utility model content：
The utility model provides a kind of high-pressure heater triple-use valve sealing structure, it is reasonable in design, improves close
The structure of envelope, the influence that sealing force is made to be fluctuated from pressure medium, improves sealing performance, solves in the prior art
Problem.
Used technical solution is the utility model to solve above-mentioned technical problem：
A kind of high-pressure heater triple-use valve sealing structure, the upper valve base including valve body and in valve body inner bore, upper
The side of valve seat is provided with groove and lower groove, perfluoroelastomer circle is equipped in the upper groove of upper valve base, under upper valve base
Spring energy storage circle is installed, the block on the downside of spring energy storage circle is mounted on by screw on upper valve base, block in groove
Upside abutted against with spring energy storage circle.
The hole that the minimum diameter of spring energy storage circle is less than upper groove is long, and the minimum diameter of perfluoroelastomer circle is less than lower groove
Hole is long；The hole that the minimum outer diameter of spring energy storage circle is more than upper groove is long, and the minimum outer diameter of perfluoroelastomer circle is more than the hole of lower groove
It is long.
The utility model using the above structure, by using spring energy storage circle and perfluoroelastomer circle between valve body and upper valve base
Compound seal form, ensure after upper valve base is packed into body cavity together with spring energy storage circle and perfluoroelastomer circle, elasticity store
It can enclose and the outer diameter of perfluoroelastomer circle after valve body inner bore effect with generating compression deformation；Such seal form has sealing force not
By pressure medium influence of fluctuations, it is simple in structure, be hardly damaged the advantages of, can greatly improve sealed between upper valve base and valve body it is reliable
Property, ensure valve and the long-term normal operation of high-pressure heater.
Description of the drawings：
Attached drawing 1 is the structure diagram of the prior art.
Attached drawing 2 is the structure diagram of the utility model.
In figure, 1, perfluoroelastomer circle, 2, spring energy storage circle, 3, block, 4, upper valve base, 5, valve body, 6, sealing surface, 7, gear
Circle, 8, pendant collet, 9, liner plate, 10, pressing plate, 11, screw, 12, self sealss circle, 13, upper valve base, 14, valve body, 15, sealing surface.
Specific embodiment：
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with new.
As shown in Figure 2：A kind of high-pressure heater triple-use valve sealing structure, including valve body 5 and on 5 endoporus of valve body
Upper valve base 4 is provided with groove and lower groove in the side of upper valve base 4, and perfluoroelastomer circle is equipped in the upper groove of upper valve base 4
1, spring energy storage circle 2 is installed in the lower groove of upper valve base 4, the block 3 positioned at 2 downside of spring energy storage circle is pacified by screw
On upper valve base 4, upside and the spring energy storage circle 2 of block 3 abut against.
The hole that the minimum diameter of spring energy storage circle 2 is less than upper groove is long, and the minimum diameter of perfluoroelastomer circle 1 is less than lower groove
Hole it is long；The hole that the minimum outer diameter of spring energy storage circle 2 is more than upper groove is long, and the minimum outer diameter of perfluoroelastomer circle 1 is more than lower groove
Hole it is long.
During installation, perfluoroelastomer circle 1 is mounted in the upper groove of upper valve base 4, spring energy storage circle 2 is mounted on upper valve base
In 4 lower groove, the upside of block 3 with spring energy storage circle 2 is abutted, block 3 is fixed by screw, upper valve base 4 is installed
Into 5 endoporus of valve body.By the compound seal shape that spring energy storage circle 2 and perfluoroelastomer circle 1 are used between valve body 5 and upper valve base 4
Formula ensures after upper valve base 4 is packed into body cavity together with spring energy storage circle 2 and perfluoroelastomer circle 1, spring energy storage circle 2 and complete
The outer diameter of fluorine rubber ring 1 after the effect of 5 endoporus of valve body with generating compression deformation；Such seal form has sealing force from medium
Pressure fluctuations, simple in structure, the advantages of being hardly damaged, the reliability sealed between upper valve base 4 and valve body 5 can be greatly improved,
Ensure valve and the long-term normal operation of high-pressure heater.
Above-mentioned specific embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or conversion made to the utility model embodiment all fall within the guarantor of the utility model
In the range of shield.
Part is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.
Claims (2)
1. a kind of high-pressure heater triple-use valve sealing structure, the upper valve base including valve body and in valve body inner bore, feature
It is：Groove and lower groove are provided in the side of upper valve base, perfluoroelastomer circle is installed in the upper groove of upper valve base, upper
Spring energy storage circle is installed, the block on the downside of spring energy storage circle is mounted on upper valve base by screw in the lower groove of valve seat
On, upside and the spring energy storage circle of block abut against.
2. a kind of high-pressure heater triple-use valve sealing structure as described in claim 1, it is characterised in that：Spring energy storage circle is most
The hole that small internal diameter is less than upper groove is long, and the minimum diameter of perfluoroelastomer circle is long less than the hole of lower groove；The minimum of spring energy storage circle
The hole that outer diameter is more than upper groove is long, and the minimum outer diameter of perfluoroelastomer circle is long more than the hole of lower groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974857.2U CN207393940U (en) | 2017-08-04 | 2017-08-04 | A kind of high-pressure heater triple-use valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974857.2U CN207393940U (en) | 2017-08-04 | 2017-08-04 | A kind of high-pressure heater triple-use valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393940U true CN207393940U (en) | 2018-05-22 |
Family
ID=62418993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720974857.2U Active CN207393940U (en) | 2017-08-04 | 2017-08-04 | A kind of high-pressure heater triple-use valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393940U (en) |
-
2017
- 2017-08-04 CN CN201720974857.2U patent/CN207393940U/en active Active
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