CN208474536U - Sleeve adjusting valve - Google Patents
Sleeve adjusting valve Download PDFInfo
- Publication number
- CN208474536U CN208474536U CN201721878190.2U CN201721878190U CN208474536U CN 208474536 U CN208474536 U CN 208474536U CN 201721878190 U CN201721878190 U CN 201721878190U CN 208474536 U CN208474536 U CN 208474536U
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- CN
- China
- Prior art keywords
- sleeve
- spool
- sealing ring
- valve
- adjusting valve
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- 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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Abstract
The utility model discloses a kind of sleeve adjusting valves, wherein includes: a valve body, a sleeve is equipped in the valve body, a spool is equipped in the sleeve, is equipped with valve rod at the top of the spool, the lower cartridge is symmetrically arranged with six infundibulate Curves Windows.The utility model solves the problems, such as that spool caused by four flow window structures in the prior art uses hidden danger, by the way that six infundibulate Curves Windows are arranged, the trend that fluid fluctuation easily causes Spool rotating to the impact of fluid under the interference and mitigation High Pressure Difference operating condition of valve control precision is effectively reduced.
Description
Technical field
The utility model relates to a kind of regulating valve more particularly to a kind of sleeve adjusting valves.
Background technique
Existing sleeve adjusting valve logarithm flow sleeve window is four window logarithm flow curves, and the spool of valve passes through
It is run up and down in sleeve to adjust the size of sleeve window open area to control the variation of flow.Due to existing sleeve tune
Save the variation of valve logarithm flow sleeve window change curve more sharply, causes the circulation of unit area fluid to change greatly, so that fluid
It fluctuates larger to the interference of valve control precision.It is not full symmetric in valve flowing channel center to work as 4 flow windows on sleeve simultaneously
When, since the impact of fluid easily causes the trend of Spool rotating under High Pressure Difference operating condition, easily spool is caused to fall off over time
Safety accident.
Utility model content
The utility model discloses a kind of sleeve adjusting valves, to solve caused by four flow window structures in the prior art
Spool uses the problem of hidden danger.
The above-mentioned purpose of the utility model is achieved through the following technical solutions:
A kind of sleeve adjusting valve, wherein include: a valve body, a sleeve, installation in the sleeve are equipped in the valve body
There is a spool, valve rod is installed at the top of the spool, the lower cartridge is symmetrically arranged with six infundibulate Curves Windows.
Sleeve adjusting valve as described above, wherein the infundibulate Curves Window includes a rectangular top, an arc funnel
Lower part, spacing reduces the arc lower portion from top to bottom.
Sleeve adjusting valve as described above, wherein the middle part spacing of the arc lower portion is two points of lower part spacing
One of.
Sleeve adjusting valve as described above, wherein be equipped with sealing ring between the spool and the sleeve.
Sleeve adjusting valve as described above, wherein the sealing ring includes: top seal ring, middle part sealing ring, the valve
There is an annular recess, the top seal ring is mounted in the recess, and the middle part is close between the upper surface and side wall of core
Seal ring is mounted between the top seal ring and the recess, and the middle part sealing ring surface is to the part of the top seal ring
It is recessed with a sealing ring, the top seal anchor ring has a matched protrusion, institute to the part of the middle part sealing ring
It states protrusion and is embedded in the sealing ring recess.
In conclusion by adopting the above-described technical solution, the utility model solves four flow window in the prior art
Spool caused by structure uses the problem of hidden danger, by the way that six infundibulate Curves Windows are arranged, effectively reduces fluid fluctuation to valve
The interference of door control precision and the impact for mitigating fluid under High Pressure Difference operating condition easily cause the trend of Spool rotating.
Detailed description of the invention
Fig. 1 is the schematic structural cross-sectional view of the utility model sleeve adjusting valve；
Fig. 2 is the structural schematic diagram of the infundibulate Curves Window of the utility model sleeve adjusting valve.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples:
Fig. 1 is the schematic structural cross-sectional view of the utility model sleeve adjusting valve, and Fig. 2 is the utility model sleeve adjusting valve
The structural schematic diagram of infundibulate Curves Window, referring to Figure 1, Fig. 2, a kind of sleeve adjusting valve, wherein include: a valve body 9, valve
One sleeve 7 is installed in body 9, a spool 4 is installed in sleeve 7, valve rod is installed at the top of spool 4,7 lower part of sleeve is symmetrically arranged with
Six infundibulate Curves Windows 1.During the carrying out practically of the utility model, regulating valve be by spool 4 in sleeve 7 on
Lower operation opens the size of area to adjust 7 window of sleeve to control the variation of flow.The window of sleeve 7 when due to valve assembly
Mouth can not accomplish completely with the full symmetric arrangement of valve flowing channel, and when assembling 4 center of spool and 7 center of sleeve there is also it is certain partially
Difference, so the fluid by 7 window of sleeve always has the trend for rotating spool 4.The sleeve 7 of the utility model and routine
Four window sleeves 7 are compared: first it circulating window it is more, can more reliably impact of the dispersing fluid to spool 4, mitigate valve
The vibration of core 4 and rotating tendency；Secondly, the curve that infundibulate Curves Window 1 rises is gentle, therefore fluid fluctuation pair can be reduced
The interference of valve.Its rating curve transition is gentle, and discharge characteristic is equal percentage at small flow, and normal discharge is connect using section
Near-linear solves steam generator water level fluctuation problem caused by downstream pressure shakiness convenient for the control of valve
Further, infundibulate Curves Window 1 includes a rectangular top, and an arc lower portion, arc lower portion is certainly
It is reduced up to lower spacing.
Further, the middle part spacing of arc lower portion is the half of lower part spacing.
Further, sealing ring 2 is installed between spool 4 and sleeve 7.
Further, sealing ring 2 includes: top seal ring sealing ring 6, middle part sealing ring sealing ring 5, the upper table of spool 4
There is an annular recess, top seal ring sealing ring 6 is mounted in recess, and middle part sealing ring sealing ring 5 is pacified between face and side wall
Between top seal ring sealing ring 6 and recess, part of the middle part sealing ring sealing ring 5 towards top sealing ring sealing ring 6
It is recessed with 2 shape of a sealing ring, part of the top seal ring sealing ring 6 towards middle part sealing ring sealing ring 5 is matched with one
Protrusion, raised 2 shape of embedding sealing ring recess.
Specifically, solving the interference due to fluid fluctuation to valve control precision after having used the utility model technology
Larger problem, substantially increases the control ability and stability of valve, and can reduce and want to actuator spring rigidity
It asks, to reduce the buying expenses of executing agency.And use its rating curve transition after the utility model technology flat
With, discharge characteristic is equal percentage at small flow, normal discharge using section close to linear, convenient for the control of valve.This reality simultaneously
With the multiwindow of new technique uniformly arrange can more reliably impact of the dispersing fluid to spool 4, mitigate spool 4 vibration
And rotating tendency, make the relatively reliable stabilization of the working performance of valve.
The utility model is measured by long-term experiment, is obtained and its good effect.
Claims (5)
1. a kind of sleeve adjusting valve characterized by comprising a valve body is equipped with a sleeve in the valve body, in the sleeve
One spool is installed, valve rod is installed at the top of the spool, the lower cartridge is symmetrically arranged with six infundibulate Curves Windows.
2. sleeve adjusting valve according to claim 1, which is characterized in that the infundibulate Curves Window includes on one rectangular
Portion, an arc lower portion, spacing reduces the arc lower portion from top to bottom.
3. sleeve adjusting valve according to claim 2, which is characterized in that under the middle part spacing of the arc lower portion is
The half of portion's spacing.
4. sleeve adjusting valve according to claim 1, which is characterized in that be equipped between the spool and the sleeve close
Seal ring.
5. sleeve adjusting valve according to claim 4, which is characterized in that the sealing ring includes: top seal ring, middle part
Sealing ring, has an annular recess between the upper surface and side wall of the spool, the top seal ring is mounted on the recess
Interior, the middle part sealing ring is mounted between the top seal ring and the recess, and the middle part sealing ring surface is on described
The part of portion's sealing ring is recessed with a sealing ring, and the top seal anchor ring has one to the part of the middle part sealing ring
Matched protrusion, the protrusion are embedded in the sealing ring recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721878190.2U CN208474536U (en) | 2017-12-28 | 2017-12-28 | Sleeve adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721878190.2U CN208474536U (en) | 2017-12-28 | 2017-12-28 | Sleeve adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474536U true CN208474536U (en) | 2019-02-05 |
Family
ID=65204611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721878190.2U Active CN208474536U (en) | 2017-12-28 | 2017-12-28 | Sleeve adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061171A (en) * | 2017-12-28 | 2018-05-22 | 上海自动化仪表有限公司 | Sleeve adjusting valve |
-
2017
- 2017-12-28 CN CN201721878190.2U patent/CN208474536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061171A (en) * | 2017-12-28 | 2018-05-22 | 上海自动化仪表有限公司 | Sleeve adjusting valve |
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| GR01 | Patent grant |