CN204358116U - Axial flow control valve - Google Patents
Axial flow control valve Download PDFInfo
- Publication number
- CN204358116U CN204358116U CN201420829487.XU CN201420829487U CN204358116U CN 204358116 U CN204358116 U CN 204358116U CN 201420829487 U CN201420829487 U CN 201420829487U CN 204358116 U CN204358116 U CN 204358116U
- Authority
- CN
- China
- Prior art keywords
- valve
- sleeve
- valve seat
- flow control
- baffle plate
- Prior art date
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of modulating valve, in particular to a kind of axial flow control valve being not only applicable to small pressure difference operating mode but also being applicable to large pressure reduction operating mode, comprise valve body, valve seat, air guide sleeve is provided with in valve body, spool is provided with in air guide sleeve, connect push rod, push rod connects a perpendicular valve rod, air guide sleeve end arranges sleeve, mazy type core pack assembly is installed between sleeve and valve seat, spool end is fixedly connected with, and connecting rod connects baffle plate near valve seat one end, and valve seat arranges the containing groove corresponding with connecting rod and baffle plate.The utility model is not only applicable to small pressure difference operating mode but also be applicable to large pressure reduction operating mode, vibration and noise little, avoid occur cavitation, increase the service life.
Description
Technical field
The utility model relates to a kind of modulating valve, particularly a kind of axial flow control valve being not only applicable to small pressure difference operating mode but also being applicable to large pressure reduction operating mode.
Background technique
Axial flow control valve is a kind of new-type modulating valve, it has drawn the advantage of sleeve adjusting valve, sleeve and spool are placed in body cavity following current road, fluid flow in by the process of modulating valve substantially do not change or change very little, along the flowing of pipeline axial direction, can reduce runner flow resistance like this, energy loss is less, increase the negotiability of valve, be applicable to the small pressure difference operating mode needing books circulation.But in actual use, the changed condition of operating mode is very large, when changing larger pressure difference environment into, just easily produces the problems such as cavitation, vibration and noise.
Model utility content
According to above the deficiencies in the prior art, technical problem to be solved in the utility model is: provide a kind of axial flow control valve, is not only applicable to small pressure difference operating mode but also be applicable to large pressure reduction operating mode, vibration and noise little, avoid occur cavitation, increase the service life.
Axial flow control valve described in the utility model, comprise valve body, be provided with valve seat, air guide sleeve in valve body, in air guide sleeve, be provided with spool, connect push rod, push rod connects a perpendicular valve rod, air guide sleeve end arranges sleeve, and install mazy type core pack assembly between sleeve and valve seat, spool end is fixedly connected with, connecting rod connects baffle plate near valve seat one end, and valve seat arranges the containing groove corresponding with connecting rod and baffle plate.
By increasing mazy type core pack assembly and increase baffle plate on spool, when working under small pressure difference condition, spool drives baffle plate by mazy type core pack assembly channel enclosed, and medium flows through sleeve inner flow passage, realize large discharge work, when working under large pressure differential, continuing lift baffle plate, by baffle plate, sleeve runner being closed, medium is through mazy type core pack assembly flow passage, by mazy type core pack assembly reducing pressure by regulating flow step by step, reduce vibration and noise, avoid cavitation occurs.
Described baffle length and mazy type core pack assembly, length sleeve are equal, and length of connecting rod is identical with length sleeve, and baffle plate closes mazy type core pack assembly and sleeve just.
Described valve rod is provided with the first helical teeth, and push rod is provided with the second helical teeth coordinated with the first helical teeth, by the cooperation of two helical teeth, realizes the front and back action of push rod.
Described mazy type core pack assembly is made up of the labyrinth disc of some stacked arrangement, labyrinth disc is disposed radially multiple labyrinth channel.
Described valve seat arranges Gask-O-Seal.
During work, medium enters in valve body through medium entrance, along the passage flow forward between air guide sleeve and valve interior wall, under small pressure difference operating conditions, drive push rod action by valve rod, baffle plate is closed inside mazy type core pack assembly, medium along in sleeve openings inner chamber, then is flowed out by media outlet.Under large pressure reduction operating conditions, drive push rod to continue action by valve rod, sleeve lining is closed by baffle plate, and medium enters in inner chamber through the runner of mazy type core pack assembly, and after multilevel decompression, velocity of medium reduces, then is flowed out by media outlet.When throttle down, baffle plate and connecting rod enter in the containing groove of valve seat successively, and spool and valve seat are closed.
Compared with prior art, the beneficial effect that the utility model has is:
This axial flow control valve, by arranging mazy type core pack assembly and increase baffle plate on spool, is not only applicable to small pressure difference operating mode but also be applicable to large pressure reduction operating mode, vibration and noise little, avoid occur cavitation, increase the service life.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is labyrinth disc structural representation.
In figure: 1, valve body; 2, air guide sleeve; 3, valve rod; 3.1, the first helical teeth; 4, sleeve; 5, mazy type core pack assembly; 5.1, labyrinth disc; 6, valve seat; 7, containing groove; 8, sealing gasket; 9, spool; 9.1, baffle plate; 9.2, connecting rod; 10, push rod; 10.1, the second helical teeth; 11, medium entrance; 12, media outlet.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, this axial flow control valve, comprise valve body 1, valve body 1 one end arranges medium entrance 11, its the other end arranges media outlet 12, valve seat 6, air guide sleeve 2 is provided with in valve body 1, valve seat 6 is arranged Gask-O-Seal 8, be provided with spool 9 in air guide sleeve 2, connect push rod 10, push rod 10 connects a perpendicular valve rod 10, valve rod 3 is provided with the first helical teeth 3.1, first helical teeth 3.1 angle is 45 °, and it is 45 ° that push rod 10 is provided with the second helical teeth 10.1, second helical teeth 10.1 angle coordinated with the first helical teeth 3.1.Air guide sleeve 2 end arranges sleeve 4, installs mazy type core pack assembly 5 between sleeve 4 and valve seat 6, and spool 9 end winding support connects, and connecting rod 9.2 connects baffle plate 9.1 near valve seat 6 one end, and valve seat 6 arranges the containing groove 7 corresponding with connecting rod 9.2 and baffle plate 9.1.Baffle plate 9.1 length and mazy type core pack assembly 5, sleeve 4 length are equal, and connecting rod 9.2 length is identical with sleeve 4 length, and baffle plate 9.1 closes mazy type core pack assembly 5 or sleeve 4 just.
As shown in Figure 2, mazy type core pack assembly 5 is made up of the labyrinth disc 5.1 of some stacked arrangement, and labyrinth disc 5.1 is disposed radially multiple labyrinth channel.
Working procedure:
During work, medium enters in valve body 1 through medium entrance 11, passage flow forward between air guide sleeve 2 and valve body 1 inwall, under small pressure difference operating conditions, push rod 10 action is driven by valve rod 3, baffle plate 9.1 is closed inside mazy type core pack assembly 5, and medium along in sleeve 4 open lumen, then is flowed out by media outlet 12.Under large pressure reduction operating conditions, drive push rod 10 to continue action by valve rod 3, sleeve 4 inwall is closed by baffle plate 9.1, and medium enters in inner chamber through the runner of mazy type core pack assembly 5, and after multilevel decompression, velocity of medium reduces, then is flowed out by media outlet 12.When throttle down, baffle plate 9.1 and connecting rod 9.2 enter in the containing groove 7 of valve seat 6 successively, and spool 9 is closed with valve seat 6.
Claims (5)
1. an axial flow control valve, comprise valve body (1), valve seat (6) is provided with in valve body (1), air guide sleeve (2), spool (9) is provided with in air guide sleeve (2), connect push rod (10), push rod (10) connects a perpendicular valve rod (10), air guide sleeve (2) end arranges sleeve (4), it is characterized in that: mazy type core pack assembly (5) is installed between sleeve (4) and valve seat (6), spool (9) end winding support connects, connecting rod (9.2) connects baffle plate (9.1) near valve seat (6) one end, valve seat (6) is upper arranges the containing groove (7) corresponding with connecting rod (9.2) and baffle plate (9.1).
2. axial flow control valve according to claim 1, it is characterized in that: described baffle plate (9.1) length and mazy type core pack assembly (5), sleeve (4) length are equal, and connecting rod (9.2) length is identical with sleeve (4) length.
3. axial flow control valve according to claim 1, it is characterized in that: described valve rod (3) is provided with the first helical teeth (3.1), push rod (10) is provided with the second helical teeth (10.1) coordinated with the first helical teeth (3.1).
4. axial flow control valve according to claim 1, it is characterized in that: described mazy type core pack assembly (5) is made up of the labyrinth disc (5.1) of some stacked arrangement, and (5.1) are disposed radially multiple labyrinth channel to labyrinth disc.
5., according to the arbitrary described axial flow control valve of Claims 1 to 4, it is characterized in that: described valve seat (6) arranges Gask-O-Seal (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829487.XU CN204358116U (en) | 2014-12-24 | 2014-12-24 | Axial flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420829487.XU CN204358116U (en) | 2014-12-24 | 2014-12-24 | Axial flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358116U true CN204358116U (en) | 2015-05-27 |
Family
ID=53259587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420829487.XU Expired - Fee Related CN204358116U (en) | 2014-12-24 | 2014-12-24 | Axial flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061834A (en) * | 2017-03-10 | 2017-08-18 | 伯特利阀门集团有限公司 | Built-in driving axial flow control valve |
-
2014
- 2014-12-24 CN CN201420829487.XU patent/CN204358116U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061834A (en) * | 2017-03-10 | 2017-08-18 | 伯特利阀门集团有限公司 | Built-in driving axial flow control valve |
| CN107061834B (en) * | 2017-03-10 | 2023-02-10 | 浙江伯特利科技股份有限公司 | Built-in driving axial-flow type regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20181224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |