CN203836249U - High-pressure balance-type regulating valve - Google Patents
High-pressure balance-type regulating valve Download PDFInfo
- Publication number
- CN203836249U CN203836249U CN201420251353.4U CN201420251353U CN203836249U CN 203836249 U CN203836249 U CN 203836249U CN 201420251353 U CN201420251353 U CN 201420251353U CN 203836249 U CN203836249 U CN 203836249U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- rod
- valve body
- hollow cylinder
- 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
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- Lift Valve (AREA)
Abstract
The utility model relates to a high-pressure balance-type regulating valve. The high-pressure balance-type regulating valve comprises a valve body, a valve rod, a valve base, a valve flap, a valve deck and a driving device. A throttling sleeve is installed in a valve cavity on the outlet side of the valve base. The valve flap is a combination of a hollow cylinder and a hollow cone, an annular seal protruding shoulder matched with the valve base is formed on the outer round face of the joint of the hollow cylinder and the hollow cone, the center of the upper end face of the hollow cylinder is fixedly connected with the valve rod, the lower end of the hollow cone is connected with a guide rod, the guide rod and the valve rod are coaxial, and a guide sleeve which is in movable fit with the guide rod is installed on the valve body in the direction of the extension line of the axis of the valve rod. The lower end face of the valve deck is connected with a piston cylinder, the outer round face of the hollow cylinder of the valve flap is in movable seal fit with the piston cylinder, the upper end face of the hollow cylinder of the valve flap is provided with a through hole communicated with an inner cavity of the hollow cylinder and a piston cavity, and the lower end of the hollow cone of the valve flap is provided with a through hole communicated with an inner cavity of the hollow cone and an inlet channel of the valve body. The high-pressure balance-type regulating valve has the advantages of being small in operation torque, high in adjusting accuracy and the like. The high-pressure balance-type regulating valve is suitable for working conditions of high-pressure media such as water and gas.
Description
Technical field
The utility model relates to a kind of modulating valve.The utility model is applicable to the modulating valve of the high-pressure medium such as water, gas operating mode.
Background technique
Modulating valve is more in sector applications such as oil, petrochemical industry, electric power, and the most frequently used is to adopt stop valve structure, and by the aperture between drive unit control flap and valve seat, the flow of control media, reaches the adjusting to rate-of flow.But, the flap upper-end surface of this modulating valve is fixedly connected with valve rod lower end, and flap lower end surface coordinates with valve base sealing, and its major defect is in the adjustment process of flap unlatching, the impact that high-pressure medium produces flap, make flap disequilibrium, affect the stability that flap is opened, unbalanced force is larger, to the regulatory function inaccuracy of flow and pressure, degree of regulation is low, and in flap opening-closing process, upper and lower pressure at both sides is poor larger, opens and closes moment large.
Summary of the invention
The purpose of this utility model is the shortcoming existing for prior art, and while providing a kind of flap to open, balance quality is good, opens and closes the high-pressure balanced modulating valve that moment is little, degree of regulation is high.
The technical solution of the utility model comprises valve body, valve rod, valve seat, flap, valve gap, and drive unit is provided with orifice sleeve in the valve pocket of valve seat outlet side; It is mainly the assemblying body that flap adopts hollow cylinder and hollow cone, the ring packing convex shoulder cooperatively interacting at both joint periphery manufactures and valve seat, center, hollow cylinder upper-end surface is fixedly connected with valve rod, hollow cone lower end connects a guide rod coaxial with valve rod, is provided with and the moving guide sleeve coordinating of guide rod on the valve body of valve rod axis elongation line direction; Valve gap lower end surface connects a piston cylinder, flap hollow cylinder periphery coordinates with piston cylinder motive sealing, flap hollow cylinder upper-end surface is shaped with the through hole that is communicated with its inner chamber and piston cavity, and flap hollow cone lower end is shaped with the through hole that is communicated with its inner chamber and valve body inlet passage.
In above technological scheme, between guide sleeve and valve body, be provided with self-seal device, this self-seal device is made up of back-up ring and self-tightening sealing ring, back-up ring is arranged on the valve body in guide sleeve outside, self-tightening sealing ring lower end surface is fitted on back-up ring in plane, between self-tightening sealing ring upper end inner hole wall and guide sleeve cylindrical wall, has the conical surface cooperatively interacting.Between guide sleeve lower end surface and valve body, sealing cover is installed.
In above technological scheme, the through hole between flap inner chamber and valve body inlet passage adopts to manufacture on guide sleeve and is communicated with the downward inclined hole of valve body inlet passage and guide sleeve endoporus and the center hole of guide rod composition.
The utility model has the advantages that: by flap inner chamber, valve body inlet passage is communicated with flap upper end piston cavity, makes pressure balance on flap; Flap lower end is moved and is coordinated with the guide sleeve on valve body by guide rod, improves the stationarity that flap opens and closes.Have that operational torque is little, degree of regulation high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
High-pressure balanced modulating valve as shown in Figure 1, comprises valve body 1, valve rod 5, valve seat 2, flap 3, valve gap 6, and drive unit 8 is provided with orifice sleeve 4 in the valve pocket of valve seat 2 outlet sides; Flap 3 adopts the assemblying body of hollow cylinder and hollow cone, the ring packing convex shoulder 9 cooperatively interacting at both joint periphery manufactures and valve seat 2, center, hollow cylinder upper-end surface is fixedly connected with valve rod 5, hollow cone lower end connects a guide rod 16 coaxial with valve rod 5, is provided with and the moving guide sleeve 11 coordinating of guide rod 16 on the valve body 1 of valve rod 5 axis elongation line directions; Valve gap 6 lower end surfaces connect a piston cylinder, and flap 3 hollow cylinder peripheries coordinate with piston cylinder motive sealing, realize two ends guiding when flap 3 is moved, and improve the stability that flap 3 moves.Flap 3 hollow cylinder upper-end surfaces are shaped with the through hole that is communicated with its inner chamber and piston cavity, flap 3 hollow cone lower ends are shaped with the through hole that is communicated with its inner chamber and valve body 1 inlet passage, valve body 1 inlet passage pressure medium is incorporated in piston cavity, makes pressure balance on flap 3, reduce and open and close moment.Described piston cavity is the cavity forming between piston cylinder inner chamber and flap 3 upper-end surfaces.
Between guide sleeve 11 and valve body 1, be provided with self-seal device, this self-seal device is made up of back-up ring 14 and self-tightening sealing ring 13, and back-up ring 14 is arranged on the valve body 1 in guide sleeve 11 outsides, and back-up ring 14 adopts pendant collet structure.Self-tightening sealing ring 13 lower end surfaces are fitted on back-up ring 14 in plane, between self-tightening sealing ring 13 upper end inner hole walls and guide sleeve 11 cylindrical walls, there is the conical surface cooperatively interacting, pressure medium promotes guide sleeve 11, its outer conical surface is coordinated with the internal conical surface wedging of self-tightening sealing ring 13, reach self-tightening sealing.Between guide sleeve 11 lower end surfaces and valve body 1, sealing cover 15 is installed.
Through hole employing manufacture on guide sleeve 11 between flap 3 inner chambers and valve body 1 inlet passage is communicated with valve body 1 inlet passage and forms with the downward inclined hole 12 of guide sleeve 11 endoporus and the center hole 10 of guide rod 16.
Flap 3 hollow cones adopt airflow design, reduce the fluid resistance in opening-closing process.Drive unit 8 adopts Electric actuator, is fixedly mounted on valve gap 6 by support 7.
Claims (3)
1. a high-pressure balanced modulating valve, comprise valve body (1), valve rod (5), valve seat (2), flap (3), valve gap (6), drive unit (8) is provided with orifice sleeve (4) in the valve pocket of valve seat (2) outlet side; It is characterized in that flap (3) adopts the assemblying body of hollow cylinder and hollow cone, manufacture at both joint peripheries the ring packing convex shoulder (9) cooperatively interacting with valve seat (2), center, hollow cylinder upper-end surface is fixedly connected with valve rod (5), hollow cone lower end connects a guide rod (16) coaxial with valve rod (5), is provided with and the moving guide sleeve (11) coordinating of guide rod (16) on the valve body (1) of valve rod (5) axis elongation line direction; Valve gap (6) lower end surface connects a piston cylinder, flap (3) hollow cylinder periphery coordinates with piston cylinder motive sealing, flap (3) hollow cylinder upper-end surface is shaped with the through hole that is communicated with its inner chamber and piston cavity, and flap (3) hollow cone lower end is shaped with the through hole that is communicated with its inner chamber and valve body (1) inlet passage.
2. high-pressure balanced modulating valve according to claim 1, it is characterized in that being provided with self-seal device between guide sleeve (11) and valve body (1), this self-seal device is made up of back-up ring (14) and self-tightening sealing ring (13), back-up ring (14) is arranged on the valve body (1) in guide sleeve (11) outside, self-tightening sealing ring (13) lower end surface is fitted in the upper plane of back-up ring (14), between self-tightening sealing ring (13) upper end inner hole wall and guide sleeve (11) cylindrical wall, has the conical surface cooperatively interacting.
3. high-pressure balanced modulating valve according to claim 1 and 2, is characterized in that the through hole employing between flap (3) inner chamber and valve body (1) inlet passage is communicated with valve body (1) inlet passage and the downward inclined hole (12) of guide sleeve (11) endoporus and the center hole (10) of guide rod (16) composition upper manufacture of guide sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251353.4U CN203836249U (en) | 2014-05-04 | 2014-05-04 | High-pressure balance-type regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251353.4U CN203836249U (en) | 2014-05-04 | 2014-05-04 | High-pressure balance-type regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836249U true CN203836249U (en) | 2014-09-17 |
Family
ID=51514091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251353.4U Expired - Fee Related CN203836249U (en) | 2014-05-04 | 2014-05-04 | High-pressure balance-type regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439058A (en) * | 2016-10-28 | 2017-02-22 | 超达阀门集团丽水有限公司 | Multifunctional stop valve |
-
2014
- 2014-05-04 CN CN201420251353.4U patent/CN203836249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439058A (en) * | 2016-10-28 | 2017-02-22 | 超达阀门集团丽水有限公司 | Multifunctional stop 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: 20140917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |