CN103603963A - Executing mechanism lower limiting adjusting device for wedge-type gate valve - Google Patents
Executing mechanism lower limiting adjusting device for wedge-type gate valve Download PDFInfo
- Publication number
- CN103603963A CN103603963A CN201310589371.3A CN201310589371A CN103603963A CN 103603963 A CN103603963 A CN 103603963A CN 201310589371 A CN201310589371 A CN 201310589371A CN 103603963 A CN103603963 A CN 103603963A
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- Prior art keywords
- gate valve
- wedge
- valve
- type gate
- bolt
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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 invention relates to an executing mechanism lower limiting adjusting device for a wedge-type gate valve. The device comprises a connecting support, a limiting retaining plate, adjusting bolts and check nuts. The device is characterized in that threaded holes for the adjusting bolts are formed at the bottom of the connecting support, the limiting retaining plate is mounted on a valve rod through screw-thread fit and fastened at the lower end of a connecting Haff, the adjusting bolts are mounted on the connecting support through screw-thread fit, the heads of the bolts are jacked and pressed below the limiting retaining plate, the other ends of the bolts penetrate a middle-head connecting flange of the wedge-type gate valve, and the check nuts and the adjusting bolts are fastened on the connecting support in a threaded connection manner. By the device, the phenomenon that the wedge-type gate valve cannot be normally opened due to the fact that the wedge-type gate valve is closed too tightly is avoided; the device is simple in structure, reliable and practical, stability in normal opening and closing of the valve is guaranteed, a sealing face of a gate plate and a valve seat of the wedge-type gate valve can be effectively protected, maintenance and repair frequency of the valve is lowered, and service life is prolonged.
Description
Technical field
The present invention relates to a kind of actuator lower limit regulating device, specifically relate to actuator's lower limit regulating device for a kind of Wedge gate valve, 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, is the most common a kind of in all valves, is the first-selected valve kind while making start-stop device in general primary branch road, and in the total amount of valve, proportion surpasses 40%.And most of gate valves all adopt wedge-type structure, its sealing principle is: under the External Force Acting providing in actuator etc., when driving two sealing surfaces on wedge shape flashboard and two sealing surfaces wedging on valve body, valve rod combines closely to reach sealing, using the object of wedge shaped plate is in order to improve auxiliary seal load, so that gate valve can be applicable to the occasions such as high temperature media of sewage, oil product, low-temperature deep and easy coking.
In practical application, under the External Force Acting providing in actuator, flashboard for sluice valve moves downward, wedge-type structure easily causes because driving force is excessive closes excessively, add under the effect of high-temperature high-pressure medium, cause the distortion of the sealing such as flashboard, valve seat component, while causing opening, the moment tripping force of needs is multiplied several times when working, and often occurs that valve cannot be opened or the phenomenon such as startup hysteresis.This has not only affected normal switch needs, has also aggravated the wearing and tearing of sealing surface, causes valve leak, has greatly shortened 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,
Actuator's lower limit regulating device for safe and reliable Wedge gate valve.
According to technological scheme provided by the invention, Wedge gate valve comprises connection bracket, postive stop baffle, adjustment bolt and fastening screw nut with actuator's lower limit regulating device; Feature is: the bottom of described connection bracket is with adjusting 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, bolt head top is pressed under postive stop baffle, the other end is through an adpting flange in Wedge gate valve, and described fastening screw nut is connected and is fastened in connection bracket with adjustment bolt thread.
As a further improvement on the present invention, one end that described connection bracket is connected with Wedge gate valve 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 adjusting bolt fine setting.
Prior art of the present invention is compared and is had the following advantages:
1, avoided Wedge gate valve to cause because closing tension the phenomenon that cannot normally open, simple in structure, reliable and practical, guaranteed the normal stability opening and closing of valve.
2, can effectively protect the sealing surface of Wedge gate valve flashboard and valve seat, reduce the maintenance and repair frequency of valve, extend working life.
3,, after valve is used sealing surface normal wear to cause leaking for a long time, the described adjustment bolt of equidistant fine setting, can realize sealing again downwards.
Accompanying drawing explanation
Fig. 1 is that structure of the present invention is used view.
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 comprises connection bracket 1, postive stop baffle 2, adjusts bolt 3 and fastening screw nut 4 with actuator's lower limit regulating device.
Connection bracket of the present invention 1 bottom, except processing the indispensable bolt hole being connected with gate valve, also needs to process two and adjusts 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, ventilation runs to closed position (needn't shut completely) by valve, the head top of adjusting bolt 3 is pressed in to postive stop baffle 2 times, play position-limiting action, the other end is through an adpting flange in Wedge gate valve, bolts 3 are adjusted in two of equidistant adjustment downwards again, until valve is closed completely, meet leakage class requirement; Described fastening screw nut 4 is threaded and is fastened in connection bracket 1 with adjustment bolt 3, plays locking effect; The middle head flange of Wedge gate valve, also need be with adjusting bolt hole, during for 3 fine setting of adjustment bolt except indispensable connecting thread hole.
After valve is used sealing surface normal wear to cause leaking for a long time, the described adjustment bolt 3 of equidistant fine setting, can realize sealing again downwards, has extended the working life of valve.
Claims (3)
1. actuator's lower limit regulating device for Wedge gate valve, is characterized in that: comprise connection bracket (1), postive stop baffle (2), adjust bolt (3) and fastening screw nut (4); The bottom of described connection bracket (1) is with adjusting bolt tapped hole, described postive stop baffle (2) is arranged on valve rod by screw-thread fit, be fastened on and connect Hough lower end, described adjustment bolt (3) is arranged in connection bracket (1) by screw-thread fit, bolt head top is pressed under postive stop baffle (2), the other end is through an adpting flange in Wedge gate valve, and (4 are threaded and are fastened in connection bracket (1) with adjustment bolt (3) described fastening screw nut.
2. actuator's lower limit regulating device for Wedge gate valve as claimed in claim 1, is characterized in that: one end that described connection bracket (1) is connected with Wedge gate valve is with adjusting bolt tapped hole.
3. actuator's lower limit regulating device for Wedge gate valve as claimed in claim 1, is characterized in that: the middle head flange of described Wedge gate valve is with the bolt hole for adjusting 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 true CN103603963A (en) | 2014-02-26 |
| CN103603963B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757972A (en) * | 2018-07-27 | 2018-11-06 | 华夏阀门有限公司 | Adjustable mechanical limits Wedge Gate Valves and adjustment method |
Citations (6)
| 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 |
| CN1456831A (en) * | 2002-05-10 | 2003-11-19 | 株式会社巴技术研究所 | Rotary angle limiting mechanism of rotary valve and regulator therewith |
| 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 |
-
2013
- 2013-11-20 CN CN201310589371.3A patent/CN103603963B/en active Active
Patent Citations (6)
| 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 |
| CN1456831A (en) * | 2002-05-10 | 2003-11-19 | 株式会社巴技术研究所 | Rotary angle limiting mechanism of rotary valve and regulator therewith |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757972A (en) * | 2018-07-27 | 2018-11-06 | 华夏阀门有限公司 | Adjustable mechanical limits Wedge Gate Valves and adjustment method |
| CN108757972B (en) * | 2018-07-27 | 2023-12-05 | 华夏阀门有限公司 | Adjustable mechanical limit wedge gate valve debugging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103603963B (en) | 2016-04-13 |
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