CN111075939A - Single seat control valve - Google Patents
Single seat control valve Download PDFInfo
- Publication number
- CN111075939A CN111075939A CN201911423639.XA CN201911423639A CN111075939A CN 111075939 A CN111075939 A CN 111075939A CN 201911423639 A CN201911423639 A CN 201911423639A CN 111075939 A CN111075939 A CN 111075939A
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- CN
- China
- Prior art keywords
- valve
- sleeve
- supporting sleeve
- cover
- cage
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a single-seat control valve, which comprises a valve body, wherein a mounting port, a medium inlet, a medium passing port and a medium outlet are arranged on the valve body, a valve cover is arranged on the mounting port, a through hole is formed in the middle of the valve cover, sleeves are arranged on two sides of the valve cover, an inner bushing is arranged at the end part of the inner bushing, an actuator is arranged on the outer bushing through a locking nut, a sealing sleeve is arranged in the outer bushing, a sealing ring is arranged in the sealing sleeve and is pressed through a pressing nut, the valve body and the valve cover are coaxially and hermetically connected, a valve seat is arranged on the medium passing port, a supporting sleeve is arranged on the upper part of the valve seat, a flow window is arranged on the supporting sleeve, a valve cage is arranged on the upper part of the supporting sleeve, one part of the valve cage extends into the supporting sleeve, the valve cage is in threaded, The flow fluctuation and the adjustment precision are improved.
Description
Technical Field
The invention relates to a control valve structure, in particular to a single-seat control valve.
Background
This industry trunk line all uses an international first line brand, because of imported product price is high, and the delivery period is long, and current development trend is gradually replaced by the localization, is an international first line brand German acarbon valve on the trunk line, so the localization brand must reach:
a, ensuring the same reaction speed as an inlet valve; the same flow rate value of the same opening degree; the precision is also adjusted;
b completely meets the inherent characteristics of the original designed control program, namely the original control valve;
the existing control valve can be further optimized in the aspects of reaction speed, flow fluctuation and regulation precision.
Disclosure of Invention
In view of the above, the present invention provides a single seat control valve, which includes a valve body, the valve body is provided with an installation port, a medium inlet, a medium through port, and a medium outlet, the installation port is provided with a valve cover, the middle of the valve cover is provided with a through hole, two sides of the valve cover are provided with sleeves, the end of the inner sleeve is provided with an inner bushing, the outer sleeve is provided with an actuator through a lock nut, the outer sleeve is provided with a sealing sleeve, the sealing sleeve is provided with a sealing ring, the sealing ring is compressed by a compression nut, the valve body and the valve cover are coaxially and hermetically connected, the medium through port is provided with a valve seat, the upper portion of the valve seat is provided with a support sleeve, the support sleeve is provided with a flow window, the upper portion of the support sleeve is provided with a valve cage, a part of the valve cage, the lower part of the valve core is connected with the valve seat, the upper part of the valve core is fixedly connected with the valve rod, and the valve rod penetrates through the inner bushing and the through hole.
Preferably, the membrane cover of the actuator is formed by an integral die-casting process.
Preferably, the lower side of the valve cover is provided with an extending edge, the extending edge is respectively connected with the valve body and the supporting sleeve, a sealing gasket is arranged between the pressure welding surface of the valve cover and the valve body, and two sealing rings are arranged on the contact surface of the extending edge and the supporting sleeve at intervals.
Preferably, the medium passing opening is circular step-shaped.
Preferably, said flow windows are evenly distributed on said support sleeve.
Preferably, a sealing ring is arranged between the compression nut and the valve rod.
Preferably, two sealing rings are arranged between the valve core and the valve cage at intervals.
Preferably, the inner bushing and the sleeve are fixedly connected through a hexagon socket head cap end set screw.
Preferably, a sealing gasket is arranged between the valve seat and the medium through opening.
Compared with the prior art, the invention has the following beneficial effects:
a valve cage is arranged at the upper part of the supporting sleeve, part of the valve cage extends into the supporting sleeve, the valve cage is in threaded connection with the valve cover, a valve core is connected onto the valve cage in a sliding manner, when the valve core runs, the valve cage A guides, no pressure difference exists in the valve cavity, the stable running of the valve core is ensured, and medium force acts on a sealing structure sealing ring and is transmitted to the valve seat to play a sealing role;
the single-seat valve core has simple structure and small pressure loss, can quickly reach the required flow value, and is suitable for regulating the working condition at high frequency;
the double-guide structure is a customized structure for guaranteeing the stability of adjustment, high-frequency operation and special working conditions of large flow and high pressure difference.
Drawings
Fig. 1 is an overall structural view of the present invention.
FIG. 2 is a side view of a supporting sleeve according to embodiment 1.
FIG. 3 is a sectional view of a support sleeve according to example 1.
FIG. 4 is a side view of a supporting sleeve according to embodiment 2.
FIG. 5 is a sectional view of a support sleeve according to example 2.
The figure is as follows: the valve comprises a valve body 1, a sealing gasket 2, a valve seat 3, a sealing ring 4, a supporting sleeve 5, a valve core 6, a valve cage 7, a valve rod 8, an actuator 9, a locking nut 10, a sealing sleeve 11, a compression nut 12, a sealing ring 13, a valve cover 14, an inner bushing 15, a hexagon socket head cap end set screw 16 and a sleeve 17.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1-2, the single-seat control valve comprises a valve body 1, wherein the valve body 1 is provided with a mounting port, a medium inlet, a medium outlet and a medium outlet, the mounting port is provided with a valve cover 14, the middle part of the valve cover 14 is provided with a through hole, two sides of the valve cover 14 are provided with sleeves 17, the end part of the inner sleeve 17 is provided with an inner bushing 15, the outer sleeve 17 is provided with an actuator 9 through a lock nut 10, the membrane cover of the actuator 9 is integrally formed through a die-sinking casting process, the outer sleeve 17 is provided with a sealing sleeve 11, the sealing sleeve 11 is provided with a sealing ring 13, the sealing ring 13 is compressed through a compression nut 12, a sealing ring 4 is arranged between the compression nut 12 and the valve rod 8, the valve body 1 and the valve cover 14 are coaxially and hermetically connected, the lower side of the valve cover 14 is provided with, a sealing gasket 2 is arranged between the pressure welding surface of the valve cover 14 and the valve body 1, and two sealing rings 4 are arranged on the contact surface of the extending edge and the supporting sleeve 5 at intervals;
a sealing gasket 2 is arranged between the valve seat 3 and the medium passing opening, the medium passing opening is in a circular step shape, the valve seat 3 is arranged on the medium passing opening, a supporting sleeve 5 is arranged on the upper portion of the valve seat 3, flow windows are arranged on the supporting sleeve 5 and are uniformly distributed on the supporting sleeve 5, a valve cage 7 is arranged on the upper portion of the supporting sleeve 5, a part of the valve cage 7 extends into the supporting sleeve 5, the valve cage 7 is in threaded connection with the valve cover 14, a valve core 6 is connected on the valve cage 7 in a sliding mode, when the valve core 6 operates, the valve cage 7 guides and pressure difference does not exist in the valve cavity, stable operation of the valve core 6 is ensured, medium force acts on the sealing structure sealing ring 4 and transmits the medium force to the valve seat 3 to play a sealing role, and the valve rod 8 and the valve cage 7 are two guide structures which are two guide structures for ensuring regulation stability and high-frequency operation, and, the flow window structure comprehensive design of the valve seat 3 and the valve cage 7 keeps the combination of a linear type valve core 6 structure and a quick-opening structure, the original inherent characteristics are unchanged, 100% of the original control program is ensured to be suitable, and the reaction speed is improved;
two sealing rings 4 are arranged between the valve core 6 and the valve cage 7 at intervals, the lower part of the valve core 6 is connected with the valve seat 3, the upper part of the valve core 6 is fixedly connected with a valve rod 8, the valve rod 8 penetrates through the inner bushing 15 and the through hole, and the inner bushing 15 is fixedly connected with the sleeve 17 through an inner hexagonal cone end fastening screw 16;
the valve body 1 calculates the flow resistance value generated by each curved surface through three-dimensional integral modeling design, and the resistance value generated by eddy current and the corresponding resistance coefficient value are verified through fluid anti-true verification until the valve body is qualified through multiple times of verification; the scheme mainly solves the problem of pressure loss of fluid passing through the valve cavity, namely the resistance coefficient of the valve cavity; the basic condition is provided for the same flow rate value of the same opening degree.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.
Claims (7)
1. Single seat control valve, including the valve body, be equipped with installing port, medium import, medium mouth, medium export on the valve body, its characterized in that: a valve cover is arranged on the mounting opening, a through hole is arranged in the middle of the valve cover, sleeves are arranged on two sides of the valve cover, an inner bushing is arranged at the end part of the inner sleeve, an actuator is arranged on the outer sleeve through a locking nut, a sealing sleeve is arranged in the outer sleeve, a sealing ring is arranged in the sealing sleeve and is tightly pressed by a compression nut, the valve body and the valve cover are coaxially and hermetically connected, a valve seat is arranged on the medium passing opening, a supporting sleeve is arranged on the upper part of the valve seat, a flow window is arranged on the supporting sleeve, a valve cage is arranged at the upper part of the supporting sleeve, one part of the valve cage extends into the supporting sleeve, the valve cage is connected with the valve cover in a threaded manner, the valve comprises a valve body, a valve seat, a valve bush, a valve rod, a through hole and a valve core, wherein the valve core is connected with the valve cage in a sliding mode, the lower portion of the valve core is connected with the valve seat, the upper portion of the valve core is fixedly connected with the valve rod, and the valve rod penetrates through the inner bushing and the through hole.
2. The single seat control valve of claim 1, wherein: and the membrane cover of the actuator is integrally formed by a die-sinking casting process.
3. The single seat control valve of claim 1, wherein: the valve comprises a valve body and a supporting sleeve, wherein the valve body is provided with a pressure welding surface, the supporting sleeve is provided with a pressure welding surface, the pressure welding surface is provided with a sealing gasket, and the pressure welding surface is provided with a sealing gasket.
4. The single seat control valve of claim 1, wherein: the medium through opening is in a circular step shape.
5. The single seat control valve of claim 1, wherein: the flow windows are evenly distributed on the bearing sleeve.
6. The single seat control valve of claim 1, wherein: and a sealing ring is arranged between the compression nut and the valve rod.
7. The single seat control valve of claim 1, wherein: two sealing rings are arranged between the valve core and the valve cage at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911423639.XA CN111075939A (en) | 2019-12-31 | 2019-12-31 | Single seat control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911423639.XA CN111075939A (en) | 2019-12-31 | 2019-12-31 | Single seat control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111075939A true CN111075939A (en) | 2020-04-28 |
Family
ID=70321433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911423639.XA Pending CN111075939A (en) | 2019-12-31 | 2019-12-31 | Single seat control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111075939A (en) |
-
2019
- 2019-12-31 CN CN201911423639.XA patent/CN111075939A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |