CN204042151U - A kind of speed closes stop valve - Google Patents
A kind of speed closes stop valve Download PDFInfo
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- CN204042151U CN204042151U CN201420517754.XU CN201420517754U CN204042151U CN 204042151 U CN204042151 U CN 204042151U CN 201420517754 U CN201420517754 U CN 201420517754U CN 204042151 U CN204042151 U CN 204042151U
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- hydraulic jack
- hydraulic
- connecting base
- valve
- hydraulic piston
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Abstract
A kind of speed closes stop valve, comprises hydraulic jack, oil cylinder spring, hydraulic piston, connecting base, valve rod, flap and valve body.Oil cylinder spring and hydraulic piston are contained in hydraulic jack, and oil cylinder spring is positioned at the epicoele of hydraulic jack, and upper end withstands on the regulator plate on hydraulic jack top, and lower end is pressed on hydraulic piston, and regulator plate is connected with adjusting screw.The lower ending opening of hydraulic jack is also arranged on connecting base, forms the cavity of resorption of hydraulic jack, connecting base is offered filler opening and oil outlet between hydraulic piston and connecting base, be communicated with cavity of resorption, and the area of passage of oil outlet is much larger than the area of passage of filler opening; Valve rod upper end puts in hydraulic jack and is connected with hydraulic piston, and valve rod lower end is connected with flap.This valve directly controls the motion of valve rod by hydraulic oil, and eliminate many intermediate transmission mechanism, the shut-in time is short, and structure is simple, easy to process, reliable.
Description
Technical field
The utility model relates to a kind of stop valve, particularly relates to shut-in time short speed and closes stop valve.
Background technique
Stop valve belongs to valve field, be mainly used in blocking or connecting MEDIA FLOW, in chemical industry, oil, petrochemical industry, papermaking, mining, electric power, liquid gas, food, pharmacy, plumbing, municipal administration, mechanical equipment coordination, electronics industry, the field such as urban construction uses relatively more extensive, and the frictional force with sealing surface in opening and closing process is little, Lift is little, manufacturing process good and be convenient to the advantage of maintenance.
Conventional stop valve control mode has: handwheel control, Electric Machine Control, hydraulic actuator or pneumatic actuator control etc., in above control valve mode, substantially all employ screw-drive mechanism or worm and gear to control the motion of valve rod, its shut-in time is longer, can not meet the special occasions that some needs cuts off rapidly fluid conveying.
Summary of the invention
There is shut-in time long problem for existing stop valve, the utility model proposes short Novel quick-closing stop valve of a kind of shut-in time, this valve arrangement is simple, reliable.
The purpose of this utility model reaches in the following manner:
Speed described in the utility model is closed stop valve and is included the parts such as hydraulic jack, oil cylinder spring, hydraulic piston, connecting base, valve rod, flap and valve body.
Wherein, oil cylinder spring and hydraulic piston are contained in hydraulic jack, and oil cylinder spring is positioned at the epicoele of hydraulic jack, and upper end withstands on the regulator plate on hydraulic jack top, and lower end is pressed on hydraulic piston, and described regulator plate is connected with the adjusting screw extended outside hydraulic jack.
The lower ending opening of hydraulic jack is also arranged on connecting base, forms the cavity of resorption of hydraulic jack, connecting base is offered filler opening and oil outlet between hydraulic piston and connecting base, be communicated with cavity of resorption, and the area of passage of oil outlet is much larger than the area of passage of filler opening.
Valve body is installed in connecting base lower end, is provided with flap in valve body.
Valve rod upper end puts in hydraulic jack and hydraulic piston is threaded connection, and locked by nut, and valve rod lower end and flap are by screw thread or be welded to connect.
Above-mentioned speed closes the opening and closing of stop valve by HYDRAULIC CONTROL SYSTEM, if need to open speed to close stop valve, hydraulic system is to hydraulic jack fuel feeding, make hydraulic jack oil outlet close simultaneously, hydraulic piston overcomes spring force and moves up under the effect of hydraulic oil, thus drives flap to open speed pass stop valve by valve rod.
If need to close speed to close stop valve, then by the solenoid directional control valve on hydraulic control oil cylinder vent line, hydraulic jack oil outlet is communicated with fuel tank, because the area of passage of oil outlet is much larger than the area of passage of filler opening, therefore no matter whether there is fuel feeding, speed pass stop valve all will be closed rapidly under spring force.
The hydraulic fluid pressure of above-mentioned speed pass stop valve, hydraulic piston active area, oil cylinder amount of spring compression, spring rate, speed are closed the parameters such as the area of passage of stop valve hydrodynamic pressure and oil inlet and outlet and are jointly determined the shut-in time.When oil hydraulic cylinder internal pressure is 0.5 ~ 0.9MPa, stop valve is in opening state, and when oil hydraulic cylinder oil outlet and fuel tank are connected, when cylinder pressure is lower than 0.4MPa, speed closes stop valve quick closedown under spring force, and the shut-in time is less than 0.5 second.The size of cracking pressure is then regulated by adjusting screw.
Compared with existing stop valve, above-mentioned speed closes stop valve directly controls valve rod motion by hydraulic oil, and eliminate many intermediate transmission mechanism, the shut-in time is short, and structure is simple, easy to process, reliable.
Close in stop valve in above-mentioned speed further, valve rod is connected by screw thread or welding manner with flap, and such valve rod and flap can separate machined, greatly save material.
This speed closes stop valve can as the important control unit of Fluid-transmission, and for occasion that some need emergency cut-off fluid to carry.
Accompanying drawing explanation
Fig. 1 is the structural drawing that speed closes stop valve;
Fig. 2 is the outline drawing that speed closes stop valve.
Reference character: 1, adjusting screw 2, regulator plate 3, oil cylinder spring 4, hydraulic jack 5, hydraulic piston 6, connecting base 7, valve rod 8, valve body 9, flap 10, seal ring.
Embodiment
Structure and the working method that this speed closes stop valve is further described below in conjunction with accompanying drawing:
As can be seen from Figure 1, this speed pass stop valve is made up of parts such as hydraulic jack (4), oil cylinder spring (3), hydraulic piston (5), connecting base (6), valve rod (7), flap (9) and valve bodies (8).As can be seen from Figure 2, this speed closes stop valve connecting base and a hydraulic jack more than conventional stop valve, and it increases highly to some extent.
The structure that this speed closes stop valve is composed as follows:
The top that speed closes stop valve is hydraulic jack (4), and centre is connecting base (6), and bottom is valve body (8).Hydraulic piston (5) is contained in hydraulic jack (4), oil cylinder spring (3) is positioned at the epicoele of hydraulic jack, upper end withstands on the regulator plate (2) on hydraulic jack top, regulator plate is connected with the adjusting screw extended outside hydraulic jack (1), Regulation spring pretightening force can be carried out by the adjusting screw on hydraulic jack, thus regulate speed to close the cracking pressure of stop valve.The lower end of oil cylinder spring is pressed on hydraulic piston.The lower ending opening of hydraulic jack (4) is also arranged on connecting base (6), the cavity of resorption of hydraulic jack is formed between hydraulic piston (5) and connecting base (6), (6) offer filler opening and oil outlet to connecting base, are communicated with this cavity of resorption, and the area of passage of oil outlet is much larger than the area of passage of filler opening.Spring force and hydraulic coupling all act on piston, and direction is contrary.
Valve rod (7) upper end puts in hydraulic jack (4) and is threaded connection with hydraulic piston (5), and locked by nut, and therefore, the motion of hydraulic piston will drive the motion of piston rod.The flap (9) established in valve rod (7) lower end and valve body (8) is by screw thread or be welded to connect.The motion of hydraulic piston will drive the motion of flap, thus fluid delivery passage carries out switch control rule.
On valve body, sealing strip can be formed by the mode of built-up welding, and the mode also can installing a seal ring 10 by interference on valve port is formed.
The working principle that this speed closes stop valve is as follows:
When speed pass stop valve opened by needs, the hydraulic oil of 0.5MPa-0.9MPa is passed into hydraulic jack, make hydraulic jack oil outlet not be communicated with fuel tank, hydraulic piston overcomes oil cylinder spring and moves up under the effect of hydraulic coupling simultaneously, drives flap Open valve by valve rod.Close speed when needs and close stop valve, solenoid valve then in hydraulic control oil cylinder outlet line, hydraulic jack hydraulic oil is communicated with fuel tank, the hydraulic coupling acted on bottom hydraulic piston reduces rapidly, hydraulic piston promotes flap motion under spring force, make speed close stop valve to close rapidly, the shut-in time is less than 0.5 second.
When hydraulic jack oil outlet and fuel tank or low pressure oil are connected, no matter whether there is fuel feeding, speed is closed stop valve and all will be closed rapidly under spring force, and the shut-in time is less than 0.5 second.
Claims (2)
1. speed closes a stop valve, includes hydraulic jack, oil cylinder spring, hydraulic piston, connecting base, valve rod, flap and valve body;
It is characterized in that: oil cylinder spring and hydraulic piston are contained in hydraulic jack, oil cylinder spring is positioned at the epicoele of hydraulic jack, upper end withstands on the regulator plate on hydraulic jack top, and lower end is pressed on hydraulic piston, and described regulator plate is connected with the adjusting screw extended outside hydraulic jack;
The lower ending opening of hydraulic jack is also arranged on connecting base, forms the cavity of resorption of hydraulic jack, connecting base is offered filler opening and oil outlet between hydraulic piston and connecting base, be communicated with cavity of resorption, and the area of passage of oil outlet is much larger than the area of passage of filler opening;
Valve body is installed in connecting base lower end, is provided with flap in valve body;
Valve rod upper end puts in hydraulic jack and hydraulic piston is threaded connection, and locked by nut, and valve rod lower end and flap are by screw thread or be welded to connect.
2. speed according to claim 1 closes stop valve, it is characterized in that: oil cylinder spring rate, initial tension of spring and hydraulic piston diameter parameters determine that the cracking pressure of speed pass stop valve is 0.5MPa-0.9MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517754.XU CN204042151U (en) | 2014-09-10 | 2014-09-10 | A kind of speed closes stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420517754.XU CN204042151U (en) | 2014-09-10 | 2014-09-10 | A kind of speed closes stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042151U true CN204042151U (en) | 2014-12-24 |
Family
ID=52242817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420517754.XU Active CN204042151U (en) | 2014-09-10 | 2014-09-10 | A kind of speed closes stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204042151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941506A (en) * | 2015-06-16 | 2015-09-30 | 贵州兴化化工股份有限公司 | Device and method for automatic and continuous liquid dispensing |
| CN106641411A (en) * | 2016-11-07 | 2017-05-10 | 武汉船用机械有限责任公司 | Quick-closing valve |
-
2014
- 2014-09-10 CN CN201420517754.XU patent/CN204042151U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941506A (en) * | 2015-06-16 | 2015-09-30 | 贵州兴化化工股份有限公司 | Device and method for automatic and continuous liquid dispensing |
| CN106641411A (en) * | 2016-11-07 | 2017-05-10 | 武汉船用机械有限责任公司 | Quick-closing valve |
| CN106641411B (en) * | 2016-11-07 | 2019-02-05 | 武汉船用机械有限责任公司 | Quick-closing valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |