CN104565503A - Hydraulic gate valve opening/closing control structure - Google Patents
Hydraulic gate valve opening/closing control structure Download PDFInfo
- Publication number
- CN104565503A CN104565503A CN201510010751.6A CN201510010751A CN104565503A CN 104565503 A CN104565503 A CN 104565503A CN 201510010751 A CN201510010751 A CN 201510010751A CN 104565503 A CN104565503 A CN 104565503A
- Authority
- CN
- China
- Prior art keywords
- piston
- hydraulic
- control structure
- gate valve
- closing control
- 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
Links
Classifications
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a hydraulic gate valve opening/closing control structure. The hydraulic gate valve opening/closing control structure comprises a hydraulic cylinder body used for mounting pistons and a slide bar used for opening/closing a hydraulic gate valve, a large piston and a small piston are arranged in the hydraulic cylinder, the small piston is placed in the large piston, the outer column of the small piston is in sliding fit connection with the inner hole of the large inner piston, and the small piston is firmly connected with the slide bar. The hydraulic gate valve opening/closing control structure changes an original single-piston hydraulic device into the large piston and small piston matching device, and the hydraulic gate valve opening/closing control structure is creative; the hydraulic gate valve opening/closing control structure is suitable for different types of hydraulic gate valves, is designed according to hydraulic opening/closing power requirements to achieve different opening/closing power, and is strong in practicability; the large piston and small piston work fitly, and the area of the large piston and small piston can be designed separately to meet opening/closing power requirements of different hydraulic gate valves so as to quickly and successfully open or close a hydraulic mechanism; the hydraulic gate valve opening/closing control structure is novel.
Description
Technical field
The present invention relates to a kind of hydraulic sluice valve, especially a kind of opening-closing control mechanism of hydraulic sluice valve.
Background technique
Hydraulic sluice valve system drive pressure is converted into valve plate by opening-closing control mechanism to make action up or down, realizes the opening and closing of gate valve.Hydraulic sluice valve has a wide range of applications in the system in the fields such as oil, chemical industry, ocean engineering, boats and ships.
The opening/closing control structure of Normal hydraulic gate valve is under identical driving pressure condition, its opening force produced is equal with closing forces, therefore the unlatching driving pressure of gate valve must be greater than closedown driving pressure in actual use, otherwise easily cause and open the problem of clamping stagnation, this is by the normal operation of influential system greatly.
Summary of the invention
The object of the invention is to the opening/closing control structure overcoming Normal hydraulic gate valve, in identical hydraulic working pressure situation, the shortcoming of hoisting capacity adjustment cannot be carried out, and a kind of hydraulic sluice valve opening/closing control structure is provided, this control structure is designed by the combined type of piston, reaches the scale better controlling hoisting capacity, object that the equipment that realizes opens and closes smoothly.
For achieving the above object, technological scheme of the present invention is: a kind of hydraulic sluice valve opening/closing control structure, there is one for installing the hydraulic cylinder of piston, a slide bar opened and closed for hydraulic sluice valve, be characterized in: described hydraulic cylinder is built with large and small piston, small piston is placed in large piston, and the outer cylinder of small piston and the sliding connection of imperial palace piston inner hole, small piston is fixedly connected with slide bar.
The diameter of bore D1 of large piston is equal with the outer cylinder outer diameter D 2 of small piston, and the outer diameter D 3 > D2 of large piston.
Limit stoper is equipped with in described hydraulic cylinder lower end, closes spacing for large piston.
The invention has the beneficial effects as follows:
1, change original single piston hydraulic pressure device, make original hydraulic pressure installation into large and small piston adapting device, creative.
2, novel hydraulic control structure is applicable to various hydraulic sluice valve, requires to design, reach the hoisting capacity of different size according to hydraulic switch power, practical.
3, hydraulic switch power control structure is by large and small piston cooperating, for the hoisting capacity requirement needed for different hydraulic sluice valve, can design separately the area ratio of large and small piston, thus realizes quick, smooth open and close hydraulic machinery, has novelty.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of hydraulic sluice valve;
Fig. 2 is the A place partial enlarged drawing of opening/closing control structure in Fig. 1;
Fig. 3 is the structural representation of large piston;
Fig. 4 is the structural representation of small piston.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
As shown in Figure 1, the application of hydraulic sluice valve opening/closing control structure of the present invention on a kind of hydraulic sluice valve, large and small piston is installed in gate valve hydraulic cylinder.
As shown in Figure 2, hydraulic sluice valve opening/closing control structure of the present invention, comprises hydraulic cylinder 1, slide bar 5, large and small piston 2,3, limit stoper 4 etc.
Large and small piston 2,3 is arranged in hydraulic cylinder 1, and small piston 3 is placed in large piston 2, and the outer cylinder of small piston 3 and the endoporus sliding connection of large inner carrier 2, small piston 3 is fixedly connected with slide bar 5.Limit stoper 4 is equipped with in hydraulic cylinder 1 lower end, closes spacing for large piston 2.
As Fig. 3, shown in 4, the diameter of bore D1 of large piston 2 is equal with the outer cylinder outer diameter D 2 of small piston 3, and the outer diameter D 3 > D2 of large piston 2.
The present invention is by the size piston in combination design in hydraulic pressure cavity in gate valve opening/closing control structure, calculate the power of the different sizes needed for hydraulic switch, design large and small piston (Fig. 3 and Fig. 4) respectively, large and small piston fit dimension D1=D2, outer diameter D 3 > D2.Large and small piston in combination is installed in oil hydraulic cylinder, there is relative sliding between the two, O type circle is adopted to seal, and in oil hydraulic cylinder, design limit stoper large piston is carried out closedown spacing (Fig. 2), under the effect of identical working medium pressure P, device closing forces is less than opening force, thus reaches the object that hydraulic structure carries out opening and closing smoothly.
As shown in Figure 1, the present embodiment to for hydraulic sluice valve hoisting capacity characteristic (closing forces and opening force linear, the larger then opening force of closing forces is larger, and opening force is greater than closing forces), design hydraulic switch power control structure, namely adopt large and small piston in combination action principle.During closedown, utilize small piston (slide bar connecting base) acting gate valves, large piston is carried out spacing (as Fig. 4); During unlatching, large and small piston acts on simultaneously and being backed down by gate valve; Under identical working water pressure, achieve closing pressure less when gate valve normally seals and larger cracking pressure, avoid the abnormal conditions such as the clamping stagnation of gate valve.Concrete opening-closing process is as follows: under the effect of cavity of resorption working water pressure, in gate valve cylinder body, large piston first moves to and contacts with slide bar connection seat (small piston), by pull bar, valve plate is opened gradually under the effect of working water pressure together again, realize the open function of gate valve.When gate valve is closed, by the press water of epicoele, valve plate is closed together with slide bar connecting base (small piston) by large piston gradually, after gate valve closedown puts in place, large piston continues move to cylinder base downwards and do not contact with small piston, produces so valve plate closing forces acts on small piston by working water.
Claims (3)
1. a hydraulic sluice valve opening/closing control structure, there is one for installing the hydraulic cylinder (1) of piston, a slide bar (5) opened and closed for hydraulic sluice valve, it is characterized in that: described hydraulic cylinder (1) is built with large and small piston (2,3), small piston is put (3) in large piston (2), the outer cylinder of small piston (3) and the endoporus sliding connection of large inner carrier (2), small piston (3) is fixedly connected with slide bar (5).
2. hydraulic sluice valve opening/closing control structure according to claim 1, it is characterized in that: the diameter of bore D1 of described large piston (2) is equal with the outer cylinder outer diameter D 2 of small piston (3), and the outer diameter D 3 > D2 of large piston (2).
3. hydraulic sluice valve opening/closing control structure according to claim 1 and 2, is characterized in that: limit stoper (4) is equipped with in described hydraulic cylinder (1) lower end, closes spacing for large piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010751.6A CN104565503A (en) | 2015-01-09 | 2015-01-09 | Hydraulic gate valve opening/closing control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010751.6A CN104565503A (en) | 2015-01-09 | 2015-01-09 | Hydraulic gate valve opening/closing control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565503A true CN104565503A (en) | 2015-04-29 |
Family
ID=53082244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510010751.6A Pending CN104565503A (en) | 2015-01-09 | 2015-01-09 | Hydraulic gate valve opening/closing control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565503A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1191959A (en) * | 1967-10-16 | 1970-05-13 | Corning Glass Works | Double Stroke Cylinder |
| US5848608A (en) * | 1995-11-14 | 1998-12-15 | Smc Corporation | Vacuum-pressure-control slow exhaust valve |
| CN2924199Y (en) * | 2006-04-20 | 2007-07-18 | 冉启明 | Electromagnetic-hydraulic soft sealing slow-closure gate valve |
| CN201787170U (en) * | 2010-08-12 | 2011-04-06 | 中国石油集团川庆钻探工程有限公司 | Hydraulic cylinder piston rod mechanism for hydraulic gate valve |
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN204437427U (en) * | 2015-01-09 | 2015-07-01 | 中国船舶重工集团公司第七0四研究所 | Hydraulic sluice valve opening/closing control structure |
-
2015
- 2015-01-09 CN CN201510010751.6A patent/CN104565503A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1191959A (en) * | 1967-10-16 | 1970-05-13 | Corning Glass Works | Double Stroke Cylinder |
| US5848608A (en) * | 1995-11-14 | 1998-12-15 | Smc Corporation | Vacuum-pressure-control slow exhaust valve |
| CN2924199Y (en) * | 2006-04-20 | 2007-07-18 | 冉启明 | Electromagnetic-hydraulic soft sealing slow-closure gate valve |
| CN201787170U (en) * | 2010-08-12 | 2011-04-06 | 中国石油集团川庆钻探工程有限公司 | Hydraulic cylinder piston rod mechanism for hydraulic gate valve |
| CN104100762A (en) * | 2014-07-23 | 2014-10-15 | 超达阀门集团股份有限公司 | Efficient pneumatic relief gate valve |
| CN204437427U (en) * | 2015-01-09 | 2015-07-01 | 中国船舶重工集团公司第七0四研究所 | Hydraulic sluice valve opening/closing control structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6041804A (en) | Subsea valve actuator and method | |
| RU167756U1 (en) | HYDRAULIC DOUBLE PRE-PRESSOR WITH TECHNOLOGICAL CONE | |
| EP2336484A1 (en) | Blowout Preventer | |
| US20110036415A1 (en) | Internal relief valve for a valve actuator | |
| CN101324180B (en) | Underwater hydraulic reversing valve | |
| CN106481616B (en) | The hydraulic cylinder of self-locking is realized using spring | |
| CN102011761A (en) | Low-pressure pilot control high-flow superhigh-pressure hydraulic cartridge valve system | |
| US8261655B2 (en) | Locking piston assembly | |
| CN104213544B (en) | The water sealing structure of mobile working gate and sealing device | |
| CN202381448U (en) | Hydraulic oil cylinder and hydraulic system | |
| CN204437427U (en) | Hydraulic sluice valve opening/closing control structure | |
| CN101446307B (en) | Mechanical feedback plug-in mounting type proportional throttle valve system | |
| CN105317766A (en) | Integrated hydraulic open-close machine | |
| CN104565503A (en) | Hydraulic gate valve opening/closing control structure | |
| US3907250A (en) | Sluice gate | |
| CN201344161Y (en) | Mechanical-feedback plug-in proportional throttle valve | |
| US6276396B1 (en) | Directional control valves | |
| CN210770570U (en) | Three-position type straight stroke air cylinder | |
| CN210106287U (en) | Hydraulic and manual double-driving cylinder | |
| CN109973464B (en) | Hydraulic and manual double-driving cylinder, use method and self-locking method | |
| CN104676030B (en) | High-temperature wearable two-way hard seal purges slurry oil shear valve | |
| CN110529459B (en) | Quick oil cylinder | |
| CN215172254U (en) | High-temperature ultrahigh-pressure hydraulic control stop valve | |
| CN210715963U (en) | Double-cutoff self-sealing high-pressure stop valve | |
| US3416406A (en) | Hydraulic ram with movement decelerating limit stop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |