CN205937888U - Balanced type case structure of low temperature governing valve - Google Patents
Balanced type case structure of low temperature governing valve Download PDFInfo
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- CN205937888U CN205937888U CN201620928846.6U CN201620928846U CN205937888U CN 205937888 U CN205937888 U CN 205937888U CN 201620928846 U CN201620928846 U CN 201620928846U CN 205937888 U CN205937888 U CN 205937888U
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- valve
- sleeve
- balanced type
- case
- low temperature
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Abstract
The utility model relates to a balanced type case structure of low temperature governing valve, fixed mounting has the sleeve in the valve body, and slidable mounting has a case in the sleeve, and the case is the balanced type structure of punching, is provided with the energy storage of spring sealing washer between the outer wall of case and the telescopic inner wall, and fixed mounting has last valve gap on the sleeve, and fixed mounting has the valve rod on the case, and the valve rod passes sleeve and last valve gap in proper order. The utility model provides a go up and adopt the design of vertical compression formula between sleeve and the lower sleeve, the case is the balanced type structure of punching, the energy storage of spring sealing washer is installed in the annular opening of case upper end, and compress tightly it with the case clamp plate, when the valve during operation, the pressure that the inside energy storage ring sum of energy storage of spring sealing washer comes from the interior medium of valve pocket can strut opening the flap, make it hug closely the sleeve inner wall, in order to reach the sealed effect that the valve needs, adopt this structure can greatly reduced to actuating mechanism's requirement, reduce the load of valve rod, the valve rod warp very for a short time, sealing performance is good, the service life of the valve is prolonged.
Description
Technical field
This utility model is related to Subzero valve technical field, especially relates to a kind of balanced type valve element knot of low temperature regulating valve
Structure.
Background technology
With the continuous development of China's science and technology, liquefied petroleum gas, liquefied natural gas, liquid oxygen, liquid nitrogen and liquefied ammonia etc.
The extensive application of cryogenic media, Subzero valve increasingly receives significant attention.However, valve used in low temperature control field
It mostly is single-seat valve, want because the material that common balanced seal circle is used can not meet using of ultralow-temperature operation conditions lower valve
Ask, thus Subzero valve typically adopt unbalanced valve core structure, therefore valve element suffer from course of action very big not
Equilibrant；And the feature of Subzero valve is to grow tall neck structure, the valve rod of institute's adapted is elongate rod, during valve working, in valve
Under the comprehensive functions such as the thrust of the out-of-balance force of core and actuator, valve rod is easy to fatigue bending, thus affecting the whole of valve
Machine performance and used life, leads to valve stuck when serious.
Utility model content
The technical problems to be solved in the utility model is：Non-flat in order to overcome Subzero valve of the prior art typically to adopt
Weighing apparatus formula valve core structure, therefore valve element suffer from very big out-of-balance force in course of action；And the feature of Subzero valve is length
High neck structure, the valve rod of institute's adapted is elongate rod, during valve working, in the out-of-balance force of valve element and the thrust of actuator
Deng under comprehensive function, valve rod is easy to fatigue bending, thus affecting overall performance and the service life of valve, leads to valve when serious
The dead problem of badge, provides a kind of balanced type valve core structure of low temperature regulating valve.
This utility model solves its technical problem and be employed technical scheme comprise that：A kind of balanced type valve element of low temperature regulating valve
Structure, including valve body, is installed with sleeve in described valve body, is slidably fitted with valve element in described sleeve, described valve element is flat
Weighing apparatus formula perforation structure, in order to improve the overall performance of valve it is ensured that the safe and reliable operation of valve.The outer wall of described valve element and set
It is provided with spring energy-storage sealing ring between the inwall of cylinder, described sleeve is installed with bonnet, fixing peace on described valve element
Equipped with valve rod, described valve rod sequentially passes through sleeve and bonnet,.
Described sleeve includes upper bush and lower sleeve, and described upper bush is located at the top of described lower sleeve, described upper bush
It is coaxially disposed with described lower sleeve, described upper bush and described lower sleeve interference fit, described upper bush is adopted with described lower sleeve
With direct press type design, upper bush and lower sleeve compression composition valve installation dimension chain.
Further, the upper end of described valve element has annular opening, and described spring energy-storage sealing ring is arranged on described ring
In shape opening, the upper end of described valve element is installed with valve element pressing plate by hexagon socket cap head screw, described valve element pressing plate
Lower surface is fitted with described spring energy-storage sealing ring.
It is installed with arc at the opening of described spring energy-storage sealing ring and opens flap, when valve working, be arranged on
Accumulation of energy ring within sealing ring and in valve pocket the pressure of medium open flap can be strutted so as to be close to upper bush inwall,
To reach the sealing effectiveness of valve needs.
Further, described bonnet, is installed with fairlead, described valve rod passes through described fairlead, by guiding
Set is slidably connected with described bonnet,.
Further, in order to realize the sealing between bonnet, and valve rod, arrange between described bonnet, and described valve rod
There is filler assembly.
The beneficial effects of the utility model are:Set using direct press type between upper bush in this utility model and lower sleeve
Meter, upper bush and lower sleeve compression constitute valve installation dimension chain, and valve element is balanced type perforation structure, and valve element upper end is machined with
Annular opening, spring energy-storage sealing ring is arranged in annular opening, and with valve element pressing plate pass through hexagon socket cap head screw by its
Compression, is provided with accumulation of energy ring inside spring energy-storage sealing ring, and is installed with arc at opening and opens flap, works as valve working
When, be arranged on the accumulation of energy ring within spring energy-storage sealing ring and in the valve pocket pressure of medium open flap can be strutted, make
It is close to upper bush inwall, to reach the sealing effectiveness of valve needs, can be substantially reduced to execution machine using this structure meanwhile
The requirement of structure, reduces the load of valve rod, and valve rod deforms very little, and sealing property is excellent, can reach ANSI B16.104V level, improves
The service life of valve.
Brief description
With reference to the accompanying drawings and examples this utility model is further illustrated.
Fig. 1 is two-dimensional representation of the present utility model；
Fig. 2 is the enlarged drawing at A in this utility model Fig. 1；
In figure：1. valve body, 2. valve element, 3. upper bush, 4. bonnet, 5. filler assembly, 6. fairlead, 7. valve rod, 8. in
Hexagonal cylindrical head screw, 9. valve element pressing plate, 10. spring energy-storage sealing ring, 11. steel balls, 12. lower sleeves, 13. locking nuts.
Specific embodiment
Presently in connection with accompanying drawing, the utility model is described in more detail.These accompanying drawings are the schematic diagram of simplification,
Basic structure of the present utility model is only described in a schematic way, therefore it only shows the composition relevant with this utility model.
A kind of balanced type valve core structure of low temperature regulating valve as shown in Figure 1, including valve body 1, fixing peace in described valve body 1
Equipped with sleeve, described sleeve includes upper bush 3 and lower sleeve 12, and described upper bush 3 is located at the top of described lower sleeve 12, described
Upper bush 3 is coaxially disposed with described lower sleeve 12, described upper bush 3 and described lower sleeve 12 interference fit, described upper bush 3 with
Described lower sleeve 12 adopts direct press type to design, and upper bush 3 and lower sleeve 12 compression constitute valve installation dimension chain.
It is slidably fitted with valve element 2, valve element 2 is balanced type perforation structure, in order to improve the whole machine of valve in described sleeve
Can be it is ensured that the safe and reliable operation of valve.It is provided with spring energy-storage sealing ring between the outer wall of described valve element 2 and the inwall of sleeve
10, the upper end of described valve element 2 has annular opening, and described spring energy-storage sealing ring 10 is arranged in described annular opening, such as
Shown in Fig. 2, the upper end of described valve element 2 is installed with valve element pressing plate 9, described valve element pressing plate 9 by hexagon socket cap head screw 8
Lower surface fit with described spring energy-storage sealing ring 10, be installed with arc at the opening of described spring energy-storage sealing ring 10
Open flap, when valve working, is arranged on the accumulation of energy ring within spring energy-storage sealing ring 10 and the pressure being derived from medium in valve pocket
Power can strut open flap so as to be close to upper bush 3 inwall, to reach the sealing effectiveness of valve needs.Solid on described sleeve
Dingan County is equipped with bonnet, 4.
Valve rod 7 is installed with described valve element 2, described valve element 2 and described valve rod 7 pass through locking nut 13 to be fixed, and
Rotation on valve element 2 for the valve rod 7 is prevented by steel ball 11, described valve rod 7 sequentially passes through sleeve and bonnet, 4, described bonnet, 4
It is provided with filler assembly 5 and described valve rod 7 between.
Fairlead 6 is installed with described bonnet, 4, described valve rod 7 passes through described fairlead 6, by fairlead 6 with
Described bonnet, 4 is slidably connected.
Direct press type is adopted to design between upper bush 3 and lower sleeve 12, upper bush 3 and lower sleeve 12 compression constitute valve and install
Dimension chain, valve element 2 is balanced type perforation structure, and valve element 2 upper end is machined with annular opening, and spring energy-storage sealing ring 10 is arranged on
In annular opening, and compressed by hexagon socket cap head screw 8 with valve element pressing plate 9, the internal peace of spring energy-storage sealing ring 10
Equipped with accumulation of energy ring, and it is installed with arc at opening and opens flap, when valve working, be arranged on spring energy-storage sealing ring 10
Internal accumulation of energy ring and in valve pocket the pressure of medium open flap can be strutted so as to be close to upper bush 3 inwall, to reach
The sealing effectiveness that valve needs, meanwhile, can substantially reduce the requirement to actuator using this structure, reduce the negative of valve rod 7
Lotus.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited in description with new technical scope it is necessary to determine its technology according to right
Property scope.
Claims (6)
1. a kind of balanced type valve core structure of low temperature regulating valve it is characterised in that：Including valve body (1), fixing in described valve body (1)
Sleeve is installed, in described sleeve, is slidably fitted with valve element (2), described valve element (2) is balanced type perforation structure, described valve element
(2) it is provided with spring energy-storage sealing ring (10) between outer wall and the inwall of sleeve, described sleeve is installed with bonnet,
(4), described valve element (2) is installed with valve rod (7), described valve rod (7) sequentially passes through sleeve and bonnet, (4).
2. low temperature regulating valve as claimed in claim 1 balanced type valve core structure it is characterised in that：Described sleeve includes set
Cylinder (3) and lower sleeve (12), described upper bush (3) is located at the top of described lower sleeve (12), described upper bush (3) and described under
Sleeve (12) is coaxially disposed, described upper bush (3) and described lower sleeve (12) interference fit.
3. low temperature regulating valve as claimed in claim 2 balanced type valve core structure it is characterised in that：Described valve element (2) upper
End has annular opening, and described spring energy-storage sealing ring (10) is arranged in described annular opening, the upper end of described valve element (2)
It is installed with valve element pressing plate (9), the lower surface of described valve element pressing plate (9) is fitted with described spring energy-storage sealing ring (10).
4. low temperature regulating valve as claimed in claim 1 balanced type valve core structure it is characterised in that：Described spring energy-storage sealing
It is installed with arc at the opening of circle (10) and open flap.
5. low temperature regulating valve as claimed in claim 1 balanced type valve core structure it is characterised in that：On described bonnet, (4)
It is installed with fairlead (6), described valve rod (7) passes through described fairlead (6), by fairlead (6) and described bonnet, (4)
It is slidably connected.
6. low temperature regulating valve as claimed in claim 1 balanced type valve core structure it is characterised in that：Described bonnet, (4) with
It is provided with filler assembly (5) between described valve rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620928846.6U CN205937888U (en) | 2016-08-24 | 2016-08-24 | Balanced type case structure of low temperature governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620928846.6U CN205937888U (en) | 2016-08-24 | 2016-08-24 | Balanced type case structure of low temperature governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937888U true CN205937888U (en) | 2017-02-08 |
Family
ID=57951389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620928846.6U Active CN205937888U (en) | 2016-08-24 | 2016-08-24 | Balanced type case structure of low temperature governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944955A (en) * | 2017-12-20 | 2019-06-28 | 西门子瑞士有限公司 | Control valve |
-
2016
- 2016-08-24 CN CN201620928846.6U patent/CN205937888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944955A (en) * | 2017-12-20 | 2019-06-28 | 西门子瑞士有限公司 | Control valve |
| CN109944955B (en) * | 2017-12-20 | 2021-03-30 | 西门子瑞士有限公司 | Control valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |