CN203584956U - Embedded explosion stack safety valve - Google Patents
Embedded explosion stack safety valve Download PDFInfo
- Publication number
- CN203584956U CN203584956U CN201320483813.1U CN201320483813U CN203584956U CN 203584956 U CN203584956 U CN 203584956U CN 201320483813 U CN201320483813 U CN 201320483813U CN 203584956 U CN203584956 U CN 203584956U
- Authority
- CN
- China
- Prior art keywords
- valve
- counterbore
- valve body
- counter bore
- explosion stack
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses an embedded explosion stack safety valve, comprising a cylinder body; the sidewall of the cylinder body is provided with counter bores and is fixedly provided with a valve body; the bottoms of the counter bores are lead out through pipelines; two ends of the valve body are both provided with the counter bores and are in communication through an intermediate valve port; an external pipe contact is fixedly installed in the counter bore on the right side of the valve body; the inner wall of the counter bore on the left side is provided with a circular groove and a check ring; a valve core sleeved with a spring is slidingly installed in the counter bore in the check ring; the right end surface of the valve core is fixedly provided with a valve port sealing block; the spring is in pressure contact with the bottom of the counter bore on the left side; the left end surface of the valve core is provided with a stepped counter bore, the bore wall on the inner side is provided with a guiding hole for communicating the stepped counter bore and the counter bore on the left side of the valve body, and a throttle valve is installed in the counter bore on the outer side; the center of the throttle valve is provided with a penetrating throttle bore. The embedded explosion stack safety valve can simplify control and protective device design, raise reliability and security, and reduce complexity and purchase cost.
Description
Technical field
The utility model relates to high-pressure liquid and drives cylinder body field, and concrete is a kind of embedded explosion stack safety valve.
Background technique
With high-pressure liquid, drive the piston rod in cylinder body to produce in the device extensive use and industrial production equipment and movable hoisting equipment of thrust (or pulling force), Fig. 1 is its schematic diagram.
Control and protection device enters cylinder body B chamber by the high-pressure liquid of pressure source by high-voltage tube B-1, pipe joint B-2, and the high-pressure liquid of simultaneously controlling cylinder body A chamber flows out by high-voltage tube A-1, pipe joint A-2, the piston rod lifting heavy that moves upward; Otherwise piston rod moves downward and falls weight.For preventing that pressure source decompression from reflux cylinder body B chamber high-pressure liquid fast, B cavity pressure declines rapidly and causes weight to fall suddenly, is provided with the protective gears such as anti-decompression reflux valve in control and protection device.But in using at the scene, because high-voltage tube is aging and foreign object impacts and makes the booster of high-voltage tube B-1, the destruction of pipe joint B-2 happens occasionally, cause weight falling accident.
Model utility content
For solving the deficiencies in the prior art, the utility model design one can automatically be closed high-pressure liquid current return circuit when there is booster, keeps pressure to prevent the explosion stack safety valve that weight drops, and is embedded in Protective valve in cylinder body and can not be destroyed by foreign object.
The technical solution of the utility model:
Embedded explosion stack safety valve, comprise cylinder body, it is characterized in that: on described cylinder side wall, have counterbore and be installed with valve body, derive by pipeline counterbore bottom, the two ends of described valve body are equipped with counterbore and are communicated with by middle valve port, in the counterbore on valve body right side, be installed with externally connected pipe joint, on the counterbore inwall in left side, have circular groove and be provided with back-up ring, described back-up ring is to be slidably fitted with the spool that is set with spring in interior counterbore space, on the right side of spool, be installed with sealing valve port piece, described spring pressure is contacted with the counterbore bottom in left side, on described spool left side, have step-like counterbore, on its inner side hole wall, have the counterbore that guide hole is communicated with step-like counterbore and valve body left side, in the counterbore in its outside, throttle valve is installed, throttle valve central authorities are provided with throttle orifice and run through.
Described embedded explosion stack safety valve, is characterized in that: described externally connected pipe joint, valve port, the counterbore in valve body left side, guide hole, step-like counterbore, throttle orifice, pipeline form circulation circuit.
Described embedded explosion stack safety valve, is characterized in that: between described cylinder body and valve body, by seal ring, be tightly connected.
Explosion stack safety valve is embedded into the agency part of valve in cylinder body, prevents that foreign object from impacting destruction, and when booster, safety valve can automatically cut out and keep cylinder interior pressure to prevent that weight from falling, and it has following advantage:
1. embed explosion stack safety valve on cylinder body after, can simplify the design of control and protection device, improve its reliability, Security, reduce its complexity, reduce the purchase cost of equipment;
2. the weight that control and protection device can not cause the structure middle joint of Fig. 1, high-voltage tube destruction falls and effectively protects; explosion stack safety valve directly can effectively be protected the accessory breakage of cylinder body outside with cylinder body installation one, effectively promoted the Security of equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model prior art;
Fig. 2 is the utility model explosion stack safety valve normal working schematic diagram.
Fig. 3 is that the utility model explosion stack safety valve cuts out guard mode schematic diagram.
Embodiment
Referring to accompanying drawing, embedded explosion stack safety valve, comprise cylinder body 1, on cylinder body 1 sidewall, have counterbore and be installed with valve body 2, derive by pipeline 1-1 counterbore bottom, the two ends of valve body 2 are equipped with counterbore and are communicated with by middle valve port 3, in the counterbore on valve body 2 right sides, be installed with externally connected pipe joint 4, on the counterbore inwall in left side, have circular groove and be provided with back-up ring 5, back-up ring 5 is to be slidably fitted with the spool 7 that is set with spring 6 in interior counterbore space, on the right side of spool 7, be installed with sealing valve port piece 8, spring 6 pressure contacts are in the counterbore bottom in left side, spool has step-like counterbore on 7 left sides, on its inner side hole wall, have the counterbore that guide hole 7-1 is communicated with step-like counterbore and valve body 2 left sides, in the counterbore in its outside, throttle valve 9 is installed, throttle valve 9 central authorities are provided with throttle orifice 9-1 and run through.
The counterbore in externally connected pipe joint 4, valve port 3, valve body 2 left sides, guide hole 7-1, step-like counterbore, throttle orifice 9-1, pipeline 1-1 form circulation circuit.
Between cylinder body 1 and valve body 2, by seal ring 10, be tightly connected.
Fig. 2 is explosion stack safety valve normal working.Explosion stack safety valve is threaded connection on cylinder body, and right-hand member is installed externally connected pipe joint by screw thread, the position of spool in the back-up ring restriction endoporus in left end endoporus, and center, endoporus right side is that path and end face are processed as valve port; Explosion stack safety valve endoporus is installed the valve body that can horizontally slip, valve body left end installs one by screw thread can change the throttle valve stimulating the menstrual flow, valve body right-hand member is installed a sealing block for closing the fluid passage of right-hand member, and the hole on valve body center hole, right-hand member external diameter, the small-diameter step of right-hand member and the hole of throttle valve form the left and right path of fluid; Spring acts on valve body the position of back-up ring, and the path of maintaining valve is unimpeded, and adjustment acting force of the spring, throttle bore diameter are determined the flow of fluid passage and the pressure difference in A chamber and B chamber.
Fig. 3 is that explosion stack safety valve cuts out guard mode.When the unexpected booster of Fig. 1 mesohigh pipe B-1 causes B cavity pressure fast-descending, the pressure difference in A chamber and B chamber increases the active force that overcomes spring and promotes valve body and move right and put right side, sealing block is close to and on valve port, closes the path that cylinder body inner fluid leaks, cylinder interior pressure is not declining and weight is being remained on to original position, and the phenomenon declining suddenly can not occur weight; Again pressurising after high-voltage tube B-1 is repaired, when pressure is greater than A cavity pressure, valve body is moved to the left and puts back-up ring place explosion stack safety valve and return to normal working.
Claims (3)
1. embedded explosion stack safety valve, comprise cylinder body, it is characterized in that: on described cylinder side wall, have counterbore and be installed with valve body, derive by pipeline counterbore bottom, the two ends of described valve body are equipped with counterbore and are communicated with by middle valve port, in the counterbore on valve body right side, be installed with externally connected pipe joint, on the counterbore inwall in left side, have circular groove and be provided with back-up ring, described back-up ring is to be slidably fitted with the spool that is set with spring in interior counterbore space, on the right side of spool, be installed with sealing valve port piece, described spring pressure is contacted with the counterbore bottom in left side, on described spool left side, have step-like counterbore, on its inner side hole wall, have the counterbore that guide hole is communicated with step-like counterbore and valve body left side, in the counterbore in its outside, throttle valve is installed, throttle valve central authorities are provided with throttle orifice and run through.
2. embedded explosion stack safety valve according to claim 1, is characterized in that: described externally connected pipe joint, valve port, the counterbore in valve body left side, guide hole, step-like counterbore, throttle orifice, pipeline form circulation circuit.
3. embedded explosion stack safety valve according to claim 1, is characterized in that: between described cylinder body and valve body, by seal ring, be tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483813.1U CN203584956U (en) | 2013-08-08 | 2013-08-08 | Embedded explosion stack safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483813.1U CN203584956U (en) | 2013-08-08 | 2013-08-08 | Embedded explosion stack safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584956U true CN203584956U (en) | 2014-05-07 |
Family
ID=50582886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483813.1U Expired - Lifetime CN203584956U (en) | 2013-08-08 | 2013-08-08 | Embedded explosion stack safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573747A (en) * | 2013-08-08 | 2014-02-12 | 安徽瑞发轨道交通设备有限公司 | Embedded type explosive-proof pipe safety valve |
-
2013
- 2013-08-08 CN CN201320483813.1U patent/CN203584956U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573747A (en) * | 2013-08-08 | 2014-02-12 | 安徽瑞发轨道交通设备有限公司 | Embedded type explosive-proof pipe safety valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105401965A (en) | High-flow safety valve | |
| GB2536373A (en) | Variable diameter piston assembly for safety valve | |
| WO2008102734A1 (en) | Directional control valve device and directional control valve device block having directional control valve devices | |
| CN102671791B (en) | Anti-explosion ball head | |
| CN203584956U (en) | Embedded explosion stack safety valve | |
| CN103994111B (en) | A kind of hydraulic bolt lift platform hydraulic control system | |
| MX2015001307A (en) | Pressure activated down hole systems and methods. | |
| CN104455562A (en) | Low-pressure steady flow release container valve for mixed inert gas fire-extinguishing system | |
| CN104358902B (en) | A kind of pressure safety valve | |
| CN103573747A (en) | Embedded type explosive-proof pipe safety valve | |
| CN204187063U (en) | A kind of pressure safety valve | |
| CN205298113U (en) | Explosion -proof valve | |
| CN202082446U (en) | Two-circuit safety valve | |
| CN202017805U (en) | Mechanical over-pressure/under-pressure protecting device for high pressure explosion-proof electromagnetic valve | |
| CN103742690A (en) | One-way overflow valve | |
| CN104314923A (en) | Safety valve liquid return system and integrated safety valve liquid return valve block | |
| CN203570382U (en) | Automatic control protection valve for lubricating oil pressure of diesel engine | |
| CN203515988U (en) | Electromagnetic pump with pressure release valve | |
| CN203248450U (en) | Oil cylinder overload and failure detection and protection system and oil cylinder with same | |
| CN207195344U (en) | A kind of hydraulic jack with overflow effect | |
| CN202812336U (en) | Multifunction vehicle compressed natural gas cylinder valve | |
| CN206972645U (en) | A kind of fluid pressure line bidirectional cutting valve | |
| CN204164072U (en) | A kind of hydraulic control valve on gyratory crusher | |
| CN203549028U (en) | Overpressure prevention pressure reducing valve | |
| CN203730878U (en) | Low pressure cut-off control energy conservation valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |