CN207454874U - A kind of multi-level decompression anti-cavitation angle valve - Google Patents
A kind of multi-level decompression anti-cavitation angle valve Download PDFInfo
- Publication number
- CN207454874U CN207454874U CN201721276132.2U CN201721276132U CN207454874U CN 207454874 U CN207454874 U CN 207454874U CN 201721276132 U CN201721276132 U CN 201721276132U CN 207454874 U CN207454874 U CN 207454874U
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- China
- Prior art keywords
- valve
- cavitation
- spool
- sleeve
- throttle orifice
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Abstract
The utility model is related to valve technology fields, specifically a kind of multi-level decompression anti-cavitation angle valve, including valve body and valve seat, valve chamber is equipped in valve body, spool is equipped in valve chamber, valve seat is equipped with valve port, and valve seat is equipped with a multilayer sleeve, at least one throttle orifice and at least one relief chamber are equipped in multilayer sleeve, spool passes through throttle orifice, the lower end of spool is communicated with valve port, and when spool, which moves up, opens valve port, valve chamber is connected by throttle orifice, relief chamber with valve port.The utility model is provided with multilayer sleeve in valve body, by the throttle orifice and relief chamber in multilayer sleeve, forms reducing pressure by regulating flow structure, along with the buck configuration at valve port, forms multilayer reducing pressure by regulating flow structure, can be effectively prevented from the generation of cavitation.The structure of multilayer sleeve and spool in the utility model is all very simple, manufacture easy to process.In the preferred embodiment of the utility model, multilayer sleeve is fixed on by clamp sleeve in valve body, and assembling is simple, and dismounting is safeguarded all very convenient.
Description
[technical field]
The utility model is related to valve technology fields, are specifically a kind of multi-level decompression anti-cavitation angle valve.
[background technology]
It is well known that angle valve is during the work time, interior media is since restriction loss can generate pressure drop, when this pressure drop is big
When to a certain extent, liquid medium can generate cavitation erosion to angle valve, along with liquid medium is in the violent of angle valve internal flow direction
Variation can generate complicated turbulent flow, this also further increases the possibility that angle valve generates cavitation erosion.
Cavitation is sizable for the harm of valve, can seriously affect the service life of valve.In order to solve angle
The problem of valve cavitates forms multistage pressure reduction structure inside angle valve, can be effectively prevented from the generation of cavitation.But existing skill
In art, can realize the angle valve of multistage decompression there is it is complicated, that processing and manufacturing is of high cost, I＆ M is inconvenient etc. is scarce
It falls into.
[utility model content]
The purpose of this utility model is exactly to solve drawbacks described above of the prior art, provides a kind of structure novel, peace
Complete reliable multi-level decompression anti-cavitation angle valve including valve body 4 and valve seat 1, is equipped with valve chamber 42 in valve body 4, in the valve chamber 42
Equipped with spool 3, valve seat 1 is equipped with valve port 10, it is characterised in that the valve seat 1 is equipped with a multilayer sleeve 2, the multilayer set
At least one throttle orifice 21 and at least one relief chamber 22 are equipped in cylinder 2, the spool 3 passes through throttle orifice 21, the lower end of spool 3
It is communicated with valve port 10, when the spool 3, which moves up, opens valve port 10, the valve chamber 42 passes through the throttle orifice 21, relief chamber 22
It is connected with the valve port 10.
The multilayer sleeve 2 is connected with the contact surface of valve seat 1 by stepped hole location fit.
The clamp sleeve 5 is pressed on the top of multilayer sleeve 2, and the top of clamp sleeve 5 is compressed by valve deck 6, described
Valve deck 6 is fixedly connected by screw 8 with valve body 4.
The clamp sleeve 5 is connected with the contact surface of multilayer sleeve 2 by stepped hole location fit.
The angle valve further includes a valve rod, and the valve rod is connected through the valve deck 6 with the spool 3.
The spool 3 is equipped with the plunger section identical with 21 quantity of throttle orifice, and the plunger section is used to block throttle orifice
21, the position of the plunger section is corresponding with throttle orifice, and the diameter of plunger section is identical with the diameter of throttle orifice.
When quantity >=2 of plunger section, one section through-flow section 33, described through-flow section is equipped between two adjacent plunger sections
Diameter be less than plunger section diameter.
Through flow hole 30 is additionally provided in the plunger section of bottommost.
Throttle orifice 21 and two relief chambers 22 there are two being set in the multilayer sleeve 2.
The diameter of two throttle orifices 21 is identical.
Compared with prior art, the utility model has the advantages that.
1st, the utility model is provided with multilayer sleeve in valve body, passes through the throttle orifice and relief chamber in multilayer sleeve, structure
Into reducing pressure by regulating flow structure, along with the buck configuration at valve port, multilayer reducing pressure by regulating flow structure is formed, can be effectively prevented from cavitating
The generation of phenomenon.
2nd, the multilayer sleeve in the utility model and the structure of spool are all very simple, manufacture easy to process.
3rd, in the preferred embodiment of the utility model, multilayer sleeve is fixed on by clamp sleeve in valve body, and assembling is simple,
Dismounting is safeguarded all very convenient.
[description of the drawings]
Fig. 1 is the structure diagram for being depressured anti-cavitation angle valve in the utility model embodiment at many levels；
Fig. 2 is schematic diagram of the angle valve in the utility model embodiment in opening；
Fig. 3 is the structure diagram of spool in the utility model embodiment；
As shown in the figure, in figure：1. 7. valve rod of valve seat 2. multilayer sleeve, 3. spool, 4. valve body, 5. clamp sleeve, 6. valve deck, 8. spiral shell
Follow closely 9. flow guide sleeve, 10. valve port, 21. throttle orifice, 22. relief chamber, 30. through flow hole, 33. through-flow sections of 31. head, 41. entrance, 42. valve chamber 43.
Export 51. pressure compensation opening, 52. pressure balance chamber, 53. passage, 54. stepped hole.
[specific embodiment]
The utility model is described in further detail below in conjunction with the accompanying drawings, the structure and principle of this device people professional to this
For be very clearly.It should be appreciated that specific embodiment described herein is only used to explain the utility model, and do not have to
In restriction the utility model.
, it is necessary to explanation, the orientation of the instructions such as term " on ", " under ", " top ", " bottom " in the description of the utility model
Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplification is retouched
It states rather than indicates or imply signified device or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that limitation to the utility model.
As shown in Figure 1 and Figure 2, a kind of multi-level decompression anti-cavitation angle valve of the utility model, including valve seat 1, spool 3 and valve
Body 4, valve seat 1 are fixed in valve body 4, and valve seat 1 is equipped with valve port 10, and spool 3, which can move down, blocks valve port 10, at this time angle valve
It is in off state；Spool 3, which moves up, can open valve port 10, and angle valve is opening at this time.Valve body 4 is equipped with 41 He of entrance
Outlet 43 for being connected with pipeline, is equipped with valve chamber 42 in valve body 4.
It is further fixed on a multilayer sleeve 2 above valve seat 1, at least one throttle orifice and extremely is equipped in multilayer sleeve 2
A few relief chamber.
Obviously, the reducing pressure by regulating flow passage formed by above-mentioned multilayer sleeve 2 and spool 3 has the advantages that simple in structure, multilayer
Sleeve 2 and spool 3 are processed all easily.The internal cylindrical structure with partition plate may be employed in multilayer sleeve 2, only need to be on partition plate
Processing throttle orifice can.
In the in vivo preferred fixed form of valve as shown in Figure 1 and Figure 2, multilayer sleeve 2 is pressed in valve seat 1 the upper surface of to multilayer sleeve,
One clamp sleeve 5 is pressed in multilayer sleeve 2 the upper surface of again, and valve body 4 is slightly exposed in the upper end of clamp sleeve 5, and is pressed by valve deck 6
Tightly, valve deck 6 is fixedly connected by screw 8 with valve body 4.This Standard is simple, and dismounting is safeguarded all very convenient.
Passage 53 is set on clamp sleeve 5, in alloing medium from valve chamber 43 into multilayer sleeve 2.In order to ensure to compress
Sleeve 5 is additionally provided with pressure balance chamber 52, pressure balance chamber 52 passes through to the reliable compression of multilayer sleeve 2 in 5 upper end of clamp sleeve
Pressure compensation opening 51 is connected with valve chamber 42, makes the pressure substantial equilibrium of 5 upper and lower ends of clamp sleeve, pressure medium is avoided to act on
It is made to bear upward active force on clamp sleeve 5, the active force is opposite with the force direction for compressing multilayer sleeve 2.
Further, multilayer sleeve 2 and the contact surface of valve seat 1 pass through stepped hole location fit, specifically, multilayer sleeve
2 lower end is equipped with stepped hole, and correspondingly, the top surface of valve seat 1, which is equipped in annular protrusion insertion stepped hole, forms location fit.When
So, can also stepped hole be set in the top surface of valve seat 1, and annular protrusion is set in the lower end of multilayer sleeve 2, be matched somebody with somebody with forming positioning
It closes.
Further, clamp sleeve 5 specifically, is pressed with the contact surface of multilayer sleeve 2 also by stepped hole location fit
The lower end of fixed cylinder 5 is equipped with stepped hole, and correspondingly, the top surface of multilayer sleeve 2, which is inserted into equipped with annular protrusion in the stepped hole, to be formed
Location fit.It is obvious also possible to which the top surface in multilayer sleeve 2 sets stepped hole, and convex annular is set in the lower end of clamp sleeve 5
It rises, to form location fit.
In order to control the movement of spool, the utility model further includes a valve rod 7, and valve rod 7 passes through valve deck 6 and valve
Core 3 is connected, and can move up and down with movable valve plug 3.
Preferably, flow guide sleeve 9 is further fixed in the lower section of valve seat 1, flow guide sleeve 9 is from valve seat 1 to 43 extension of outlet.
In the preferred embodiment shown in figure 2, throttle orifice 21 and two relief chambers 22 there are two being set in multilayer sleeve 2.Valve
Through each throttle orifice 21 in multilayer sleeve 2, lower end can be engaged core 3 with valve port 10.When spool 3 moves up, valve port
During 10 opening, valve chamber 42 is connected by each throttle orifice 21, relief chamber 22 with valve port 10, so as to fulfill the circulation of medium.Medium
Enter valve chamber 42 from entrance 41, during finally flowing out valve from outlet 43, multilayer reducing pressure by regulating flow structure can be passed through：For example it sets
Pressure in valve chamber 42 is P1, and when entering first relief chamber 22 by first throttle orifice 21, pressure can be reduced to P2, Ran Houzai
During by next throttle orifice 21 into next relief chamber 22, pressure is further reduced to P3, is finally reached out by valve port 10
During mouth 43, pressure is reduced to P4, i.e. P1>P2>P3>P4.This multi-level buck configuration, can to avoid the liquid medium in valve because
It is drastically depressured at valve port and generates cavitation, extend the service life of valve.
Even if a throttle orifice 21 and a decompression are only set it can be seen from the above-mentioned course of work in multilayer sleeve 2
Chamber 22 can also form the effect being depressured at many levels together with valve port, so as to effectively eliminate the pressure condition that cavitation erosion generates.
As shown in Figure 2 and Figure 3, with above-mentioned 21 matched valve core structure of throttle orifice as shown in figure 3, being set on spool 3 there are two
Plunger section 32,34, the diameter of two plunger sections 32,34 is identical with the diameter of two throttle orifices 21 in multilayer sleeve respectively, in valve
When door is closed, two throttle orifices 21 can be just blocked.The lower end of spool 3 is head 31, for being engaged with valve seat, closes valve
Mouthful.
Relatively small through-flow section 33 of one section of diameter is equipped between two plunger sections 32,34, in the plunger close to lower end
Section 32 is equipped with through flow hole 30.As shown in Fig. 2, when valve opening, through-flow section 33 on the spool section faced above
Discharge orifice 21；And the through flow hole 30 on spool faces a following throttle orifice, and two adjacent relief chambers 22 are connected, it is situated between
Matter can enter first relief chamber from the gap between throttle orifice 21 and through-flow section 33, and then, medium is further through through flow hole
30 enter second relief chamber, and through flow hole 30, which is equivalent to, is formed in a following throttling passage between throttle orifice and spool.
The diameter of two throttle orifices is identical in multilayer sleeve 2.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (10)
1. a kind of multi-level decompression anti-cavitation angle valve, including valve body（4）And valve seat（1）, valve body（4）It is interior to be equipped with valve chamber（42）, institute
State valve chamber（42）It is interior to be equipped with spool（3）, valve seat（1）It is equipped with valve port（10）, it is characterised in that the valve seat（1）It is equipped with one
Multilayer sleeve（2）, the multilayer sleeve（2）It is interior to be equipped at least one throttle orifice（21）With at least one relief chamber（22）, it is described
Spool（3）Through throttle orifice（21）, spool（3）Lower end and valve port（10）It communicates, when the spool（3）Move up opening valve port
（10）When, the valve chamber（42）Pass through the throttle orifice（21）, relief chamber（22）With the valve port（10）It is connected.
A kind of 2. multi-level decompression anti-cavitation angle valve as described in claim 1, it is characterised in that the multilayer sleeve（2）With
Valve seat（1）Contact surface connected by stepped hole location fit.
3. a kind of multi-level decompression anti-cavitation angle valve as claimed in claim 1 or 2, it is characterised in that further include clamp sleeve
（5）, the clamp sleeve（5）It is pressed on multilayer sleeve（2）Top, clamp sleeve（5）Top by valve deck（6）It compresses,
The valve deck（6）Pass through screw（8）With valve body（4）It is fixedly connected.
A kind of 4. multi-level decompression anti-cavitation angle valve as claimed in claim 3, it is characterised in that the clamp sleeve（5）With
Multilayer sleeve（2）Contact surface connected by stepped hole location fit.
5. a kind of multi-level decompression anti-cavitation angle valve as claimed in claim 3, it is characterised in that the angle valve further includes one
Valve rod, the valve rod pass through the valve deck（6）With the spool（3）It is connected.
A kind of 6. multi-level decompression anti-cavitation angle valve as described in claim 1, it is characterised in that the spool（3）Be equipped with
Throttle orifice（21）The identical plunger section of quantity, the plunger section are used to block throttle orifice（21）, the position of the plunger section with
Throttle orifice is corresponding, and the diameter of plunger section is identical with the diameter of throttle orifice.
7. a kind of multi-level decompression anti-cavitation angle valve as claimed in claim 6, it is characterised in that when quantity >=2 of plunger section
When, one section through-flow section is equipped between two adjacent plunger sections（33）, described through-flow section of diameter is less than the diameter of plunger section.
8. a kind of multi-level decompression anti-cavitation angle valve as claimed in claim 7, it is characterised in that positioned at the plunger section of bottommost
On be additionally provided with through flow hole（30）.
A kind of 9. multi-level decompression anti-cavitation angle valve as described in claim 1, it is characterised in that the multilayer sleeve（2）It is interior
If there are two throttle orifices（21）With two relief chambers（22）.
A kind of 10. multi-level decompression anti-cavitation angle valve as claimed in claim 9, it is characterised in that two throttle orifices（21）It is straight
Footpath is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276132.2U CN207454874U (en) | 2017-09-30 | 2017-09-30 | A kind of multi-level decompression anti-cavitation angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721276132.2U CN207454874U (en) | 2017-09-30 | 2017-09-30 | A kind of multi-level decompression anti-cavitation angle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454874U true CN207454874U (en) | 2018-06-05 |
Family
ID=62250148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721276132.2U Expired - Fee Related CN207454874U (en) | 2017-09-30 | 2017-09-30 | A kind of multi-level decompression anti-cavitation angle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274037A (en) * | 2019-05-29 | 2019-09-24 | 黑龙江北方阀业有限责任公司 | A kind of continuous blowdown valve |
-
2017
- 2017-09-30 CN CN201721276132.2U patent/CN207454874U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274037A (en) * | 2019-05-29 | 2019-09-24 | 黑龙江北方阀业有限责任公司 | A kind of continuous blowdown valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 Termination date: 20200930 |