CN103603963B - Wedge gate valve actuator's lower limit regulating device - Google Patents
Wedge gate valve actuator's lower limit regulating device Download PDFInfo
- Publication number
- CN103603963B CN103603963B CN201310589371.3A CN201310589371A CN103603963B CN 103603963 B CN103603963 B CN 103603963B CN 201310589371 A CN201310589371 A CN 201310589371A CN 103603963 B CN103603963 B CN 103603963B
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- CN
- China
- Prior art keywords
- gate valve
- connection bracket
- valve
- wedge gate
- adjustment bolt
- 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.)
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The present invention relates to a kind of Wedge gate valve actuator lower limit regulating device and comprise connection bracket, postive stop baffle, adjustment bolt and fastening screw nut; Feature is: the bottom of described connection bracket is with adjustment bolt tapped hole, described postive stop baffle is arranged on valve rod by screw-thread fit, be fastened on and connect Hough lower end, described adjustment bolt is arranged in connection bracket by screw-thread fit, under bolt head top is pressed in postive stop baffle, the other end through the middle head adpting flange of Wedge gate valve, described fastening screw nut with adjust bolt thread and be connected and be fastened in connection bracket.Present invention, avoiding the phenomenon that Wedge gate valve causes normally opening because closing tension, structure is simple, reliable and practical, ensure that the stability that valve normally opens and closes.The sealing surface of energy available protecting Wedge gate valve flashboard and valve seat, reduces the maintenance and repair frequency of valve, extends working life.
Description
Technical field
The present invention relates to a kind of actuator lower limit regulating device, specifically relate to a kind of Wedge gate valve actuator lower limit regulating device, belong to control valve for fluids field.
Background technique
Gate valve is divided into single-shutter gate valve, double-flashboard gate valve and Flexible disc gate valve etc. by structural principle, and being one the most common in all valves, is first-selected valve kind when making start-stop device in general primary branch road, and in the total amount of valve, proportion is more than 40%.And most of gate valve all adopts key-like structure, its sealing principle is: under the External Force Acting that actuator etc. provides, combining closely when valve rod drives two sealing surfaces on two sealing surfaces on wedge shape flashboard and valve body to wedge reaches sealing, the object of wedge shaped plate is used to be to improve auxiliary seal load, with the occasion such as high temperature media enabling gate valve be applicable to sewage, oil product, low-temperature deep and easily coking.
In practical application, under the External Force Acting that actuator provides, flashboard for sluice valve moves downward, key-like structure easily causes because driving force is excessive closes excessively, add under the effect of high-temperature high-pressure medium, cause flashboard, valve seat etc. to seal the distortion of component, when causing opening, the moment tripping force of needs is multiplied several times than when normally working, and often occurs that valve cannot be opened or the phenomenon such as startup hysteresis.This not only have impact on normal switch needs, also exacerbates the wearing and tearing of sealing surface, causes valve leak, substantially reduces the working life of valve.
Summary of the invention
The object of the invention is to overcome the deficiency in above-mentioned technology, thus provide a kind of simple and practical,
Safe and reliable Wedge gate valve actuator's lower limit regulating device.
According to technological scheme provided by the invention, Wedge gate valve actuator's lower limit regulating device comprises connection bracket, postive stop baffle, adjustment bolt and fastening screw nut; Feature is: the bottom of described connection bracket is with adjustment bolt tapped hole, described postive stop baffle is arranged on valve rod by screw-thread fit, be fastened on and connect Hough lower end, described adjustment bolt is arranged in connection bracket by screw-thread fit, under bolt head top is pressed in postive stop baffle, the other end through the middle head adpting flange of Wedge gate valve, described fastening screw nut with adjust bolt thread and be connected and be fastened in connection bracket.
As a further improvement on the present invention, one end of being connected with Wedge gate valve of described connection bracket is with adjusting bolt tapped hole.
As a further improvement on the present invention, the middle head flange of described Wedge gate valve is with the bolt hole for the fine setting of adjustment bolt.
Prior art of the present invention is compared and is had the following advantages:
1, avoid the phenomenon that Wedge gate valve causes normally opening because closing tension, structure is simple, reliable and practical, ensure that the stability that valve normally opens and closes.
2, the sealing surface of energy available protecting Wedge gate valve flashboard and valve seat, reduces the maintenance and repair frequency of valve, extends working life.
3, after the normal wear of valve Long-Time Service sealing surface causes leakage, the described adjustment bolt of equidistant fine setting, can realize again sealing downwards.
Accompanying drawing explanation
Fig. 1 is structure using state schematic diagram of the present invention.
Fig. 2 is the partial schematic diagram at A place in Fig. 1.
Fig. 3 is the plan view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described in detail.
As shown in Figure 1-Figure 3, Wedge gate valve actuator's lower limit regulating device comprises connection bracket 1, postive stop baffle 2, adjustment bolt 3 and fastening screw nut 4.
Bottom connection bracket 1 of the present invention except processing the indispensable bolt hole be connected with gate valve, processing two is also needed to adjust bolt tapped hole; Described postive stop baffle 2 is arranged on valve rod by screw-thread fit, is fastened on and connects Hough lower end; Described adjustment bolt 3 is arranged in connection bracket 1 by screw-thread fit, valve is run to closed position (need not shut completely) by ventilation, the head top of adjustment bolt 3 is pressed in postive stop baffle 2 times, play position-limiting action, the other end is through the middle head adpting flange of Wedge gate valve, equidistant adjustment two adjusts bolt 3 downwards again, until valve is closed completely, meets leakage class requirement; Described fastening screw nut 4 is threaded with adjustment bolt 3 and is fastened in connection bracket 1, plays locking effect; The middle head flange of Wedge gate valve except the connecting thread hole of indispensability, also need with adjustment bolt hole, for adjustment bolt 3 finely tune time.
After the normal wear of valve Long-Time Service sealing surface causes leakage, the described adjustment bolt 3 of equidistant fine setting, can realize again sealing, extend the working life of valve downwards.
Claims (1)
1. Wedge gate valve actuator's lower limit regulating device, comprises postive stop baffle (2); It is characterized in that: also comprise connection bracket (1), adjustment bolt (3) and fastening screw nut (4); The bottom of described connection bracket (1) is with adjustment bolt tapped hole, described postive stop baffle (2) is arranged on valve rod by screw-thread fit, postive stop baffle (2) is fastened on and connects Hough lower end, described adjustment bolt (3) is arranged in connection bracket (1) by screw-thread fit, under bolt head top is pressed in postive stop baffle (2), the other end is through the middle head adpting flange of Wedge gate valve, and described fastening screw nut (4) is threaded with adjustment bolt (3) and is fastened in connection bracket (1);
One end that described connection bracket (1) is connected with Wedge gate valve is with adjusting bolt tapped hole;
The middle head adpting flange of described Wedge gate valve is with the bolt hole for adjustment bolt (3) fine setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589371.3A CN103603963B (en) | 2013-11-20 | 2013-11-20 | Wedge gate valve actuator's lower limit regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310589371.3A CN103603963B (en) | 2013-11-20 | 2013-11-20 | Wedge gate valve actuator's lower limit regulating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103603963A CN103603963A (en) | 2014-02-26 |
| CN103603963B true CN103603963B (en) | 2016-04-13 |
Family
ID=50122211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310589371.3A Active CN103603963B (en) | 2013-11-20 | 2013-11-20 | Wedge gate valve actuator's lower limit regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103603963B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757972B (en) * | 2018-07-27 | 2023-12-05 | 华夏阀门有限公司 | Adjustable mechanical limit wedge gate valve debugging method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2093933U (en) * | 1991-04-28 | 1992-01-22 | 瓯海县沙城机械阀门一厂 | Hydraulic gate valve with non-contact level-limit switch |
| CN201170162Y (en) * | 2008-01-04 | 2008-12-24 | 沈阳鼓风机(集团)有限公司 | Remaining gap valve regulation apparatus |
| CN102472412A (en) * | 2009-07-13 | 2012-05-23 | 费希尔控制国际公司 | Methods and apparatus to load a valve packing |
| CN103195953A (en) * | 2013-03-26 | 2013-07-10 | 大丰市奥凯流体机械有限公司 | Swing check valve |
| CN203686201U (en) * | 2013-11-20 | 2014-07-02 | 无锡智能自控工程股份有限公司 | Executing mechanism lower position limiting regulating device for wedge type brake valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3656059B2 (en) * | 2002-05-10 | 2005-06-02 | 株式会社巴技術研究所 | Rotating valve rotation angle limiting mechanism and actuator equipped with the same |
-
2013
- 2013-11-20 CN CN201310589371.3A patent/CN103603963B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2093933U (en) * | 1991-04-28 | 1992-01-22 | 瓯海县沙城机械阀门一厂 | Hydraulic gate valve with non-contact level-limit switch |
| CN201170162Y (en) * | 2008-01-04 | 2008-12-24 | 沈阳鼓风机(集团)有限公司 | Remaining gap valve regulation apparatus |
| CN102472412A (en) * | 2009-07-13 | 2012-05-23 | 费希尔控制国际公司 | Methods and apparatus to load a valve packing |
| CN103195953A (en) * | 2013-03-26 | 2013-07-10 | 大丰市奥凯流体机械有限公司 | Swing check valve |
| CN203686201U (en) * | 2013-11-20 | 2014-07-02 | 无锡智能自控工程股份有限公司 | Executing mechanism lower position limiting regulating device for wedge type brake valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103603963A (en) | 2014-02-26 |
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| C14 | Grant of patent or utility model | ||
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