CN205278475U - Through type emergency shut -off valve - Google Patents
Through type emergency shut -off valve Download PDFInfo
- Publication number
- CN205278475U CN205278475U CN201521107133.5U CN201521107133U CN205278475U CN 205278475 U CN205278475 U CN 205278475U CN 201521107133 U CN201521107133 U CN 201521107133U CN 205278475 U CN205278475 U CN 205278475U
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- mouth
- valve body
- case
- spool
- valve
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Abstract
The utility model discloses a through type emergency shut -off valve, including valve body, case, blasting needle, guide post and clamp plate, the case is worn to locate in the valve body, one end with set up square blasting needle above that and be connected, the clamp plate sets up the blasting needle the top, and through the plug with the blasting needle is fixed, be equipped with pressurized mouth and pressure release mouth on the valve body, pressurized mouth and pressure release mouth are located the case left and right sides, still be equipped with the disk seat between pressurized mouth and the pressure release mouth, the pressurized mouth is close to the one end of case is located the top of disk seat, the pressure release mouth is close to the one end of case is located the below of disk seat, the case includes the movable rod and connects piston on the movable rod, the piston is located the disk seat below, still be equipped with the boss on the movable rod, the boss is located the disk seat top. The utility model discloses using the blasting needle to replace the spring to come control and turn -offing pressure, the controlled pressure is very accurate, and it is fabulous to explode needle stability.
Description
Technical field
This utility model relates to a kind of emergency shutdown valve, particularly relates to a kind of through type emergency shutdown valve.
Background technology
Passive type emergency shutdown valve is to be driven by external force, as pneumatic, electronic, or multiple chain etc. drives valve rapid-closing, it is both needed to utilize the shutoff of external force application valve body, easily causes many unstability, such as power-off, die, mechanical breakdown etc., very easily causes the inefficacy of system.
Utility model content
The purpose of this utility model is: provide a kind of through type emergency shutdown valve, uses explosion pin to replace spring to control to turn off pressure, controls pressure extremely accurate, and explosion pin excellent stability.
To achieve these goals, the technical solution of the utility model is:
A kind of through type emergency shutdown valve, it is characterised in that: include valve body, spool, explosion pin, lead and pressing plate; Described spool is arranged in described valve body, and one end is connected with the explosion pin being disposed there above; Described pressing plate is arranged on the top of described explosion pin, and is fixed by screw plug and described explosion pin; Described valve body is provided with pressurized mouth and pressure relief opening, and described pressurized mouth and pressure relief opening are positioned at the described spool left and right sides; It is additionally provided with valve seat between described pressurized mouth and pressure relief opening; Described pressurized mouth is positioned at the top of described valve seat near one end of described spool, and described pressure relief opening is positioned at the lower section of described valve seat near one end of described spool; Described spool includes motion bar and the piston being connected on described motion bar, and described piston is positioned at below described valve seat, and described motion bar is additionally provided with boss, and described boss is positioned at above described valve seat.
Further, described lead is arranged on the side of described explosion pin, and two ends are connected with described valve body and pressing plate respectively.
This utility model is owing to have employed above-mentioned technology, so as to compared with prior art have the advantages that:
This utility model uses pass broken needle to replace spring to control to turn off pressure, and the STRESS VARIATION of explosion pin, always in elastic limits, controls pressure extremely accurate, and its Deformation Mechanism follows Euler's formula, before reaching to set shutoff pressure, closing broken needle will not be tired, excellent stability.
Accompanying drawing explanation
Fig. 1 is the structural representation during work of this utility model through type emergency shutdown valve.
Fig. 2 is structural representation during this utility model through type emergency shutdown valve pressure release.
Detailed description of the invention
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
Shown in Figure 1, a kind of through type emergency shutdown valve, it is characterised in that: include valve body 5, spool 6, explosion pin 3, lead 4 and pressing plate 2; Described spool 6 is arranged in described valve body 5, and one end is connected with the explosion pin 3 being disposed there above; Described pressing plate 2 is arranged on the top of described explosion pin 3, and is fixed with described explosion pin 3 by screw plug 1; Described valve body 5 is provided with pressurized mouth 51 and pressure relief opening 52, and described pressurized mouth 51 and pressure relief opening 52 are positioned at described spool 6 left and right sides; It is additionally provided with valve seat 7 between described pressurized mouth 51 and pressure relief opening 52; Described pressurized mouth 51 is positioned at the top of described valve seat 7 near one end of described spool 6, and described pressure relief opening 52 is positioned at the lower section of described valve seat 7 near one end of described spool 6; Described spool 6 includes motion bar and the piston being connected on described motion bar, and described piston is positioned at below described valve seat 7, and described motion bar is additionally provided with boss, and described boss is positioned at above described valve seat 7.
Preferably, described lead 4 is arranged on the side of described explosion pin 3, and two ends are connected with described valve body 5 and pressing plate 2 respectively, it is ensured that explosion pin 3 in the vertical direction stress.
Shown in Figure 2, liquid flowing from left to right in valve body 5, when in equipment, circulating pressure exceedes predetermined value; buoyancy suffered by spool 6 is to explosion pin 3, and when power reaches the point of safes of explosion pin 3, explosion pin 3 moment accurately bends in three places; thus discharging pressure, protect system.
��
The best draw ratio that the diameter of explosion pin and length are all according to Euler's formula is determined. Its advantage is that pressure precision is high, good stability, and fatigue resistance is high, and operation ratio reaches as high as 98%, and explosion franchise is up to �� 2%; System reaches the burst pressure set, several milliseconds of inner valve Close Alls, and pressure is more high, and it is more good to seal. After system recovery, only need to change explosion pin; Simple installation, explosion pin is replaced, and a people only needs one minute; Loss is low, relatively low maintenance cost, has greatly saved manpower and financial resources.
In sum, this utility model uses explosion pin to replace spring to control to turn off pressure, controls pressure extremely accurate, and explosion pin excellent stability.
Claims (2)
1. a through type emergency shutdown valve, it is characterised in that: include valve body (5), spool (6), explosion pin (3), lead (4) and pressing plate (2); Described spool (6) is arranged in described valve body (5), and one end is connected with the explosion pin (3) being disposed there above; Described pressing plate (2) is arranged on the top of described explosion pin (3), and is fixed with described explosion pin (3) by screw plug (1); Described valve body (5) is provided with pressurized mouth (51) and pressure relief opening (52), and described pressurized mouth (51) and pressure relief opening (52) are positioned at described spool (6) left and right sides; It is additionally provided with valve seat (7) between described pressurized mouth (51) and pressure relief opening (52); Described pressurized mouth (51) is positioned at the top of described valve seat (7) near one end of described spool (6), and described pressure relief opening (52) is positioned at the lower section of described valve seat (7) near one end of described spool (6); Described spool (6) includes motion bar and the piston being connected on described motion bar, and described piston is positioned at described valve seat (7) lower section, and described motion bar is additionally provided with boss, and described boss is positioned at described valve seat (7) top.
2. through type emergency shutdown valve according to claim 1, it is characterized in that: described lead (4) is arranged on the side of described explosion pin (3), and two ends are connected with described valve body (5) and pressing plate (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521107133.5U CN205278475U (en) | 2015-12-27 | 2015-12-27 | Through type emergency shut -off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521107133.5U CN205278475U (en) | 2015-12-27 | 2015-12-27 | Through type emergency shut -off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205278475U true CN205278475U (en) | 2016-06-01 |
Family
ID=56063053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521107133.5U Active CN205278475U (en) | 2015-12-27 | 2015-12-27 | Through type emergency shut -off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205278475U (en) |
-
2015
- 2015-12-27 CN CN201521107133.5U patent/CN205278475U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |