CN203906813U - Pneumatic and manual normally-open emergency cut-off valve - Google Patents
Pneumatic and manual normally-open emergency cut-off valve Download PDFInfo
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- CN203906813U CN203906813U CN201420298439.2U CN201420298439U CN203906813U CN 203906813 U CN203906813 U CN 203906813U CN 201420298439 U CN201420298439 U CN 201420298439U CN 203906813 U CN203906813 U CN 203906813U
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Abstract
The utility model discloses a pneumatic and manual normally-open emergency cut-off valve. The valve comprises a valve body, a valve rod, a valve clack and a valve cover. The valve cover is fixedly connected with the valve body, the valve rod is installed in the valve body and fixedly connected with the valve clack, and the emergency cut-off valve is characterized in that a pneumatic device is installed on the valve cover. A packing seal sleeve, packing, a packing seat and an elastic part are sequentially arranged at the connecting position of the pneumatic device and an upper cover from top to bottom, the pneumatic device comprises an air cylinder, a piston, a spring, an air inlet and a cylinder cover, the cylinder cover is installed at the upper end of the air cylinder, the piston is fixedly matched with the valve rod and placed in an inner cavity of the air cylinder, one end of the spring abuts against the piston, the other end of the spring abuts against the inner surface of the air cylinder, and an air inlet is formed in the upper end face of the cylinder cover. According to the obtained pneumatic and manual normally-open emergency cut-off valve, the packing seal sleeve, the packing, the packing seat and the elastic part are sequentially arranged at the connecting position of the pneumatic device and the upper cover from top to bottom, due to the structure, after the cut-off valve is used for a long time and even abraded, leakage will not happen according to the extending performance of the elastic part, and sealing performance is very high.
Description
Technical field
The utility model relates to a kind of cut-off valve, particularly the manual Emergeny Cutoff Valves open in usual of pneumatic band.
Background technique
For the sake of security, in the pipeline of carrying flammable explosive gas, Emergeny Cutoff Valves must be installed, existing Emergeny Cutoff Valves comprises valve body, valve gap, valve rod, valve rod spring, valve plate, valve seat, guide sleeve and handle, on valve rod, be provided with limited ring groove, this annular groove coordinates with the electromagnetism cutting-off controlling device that is located at valve body outside, and it,, at the energy automatic-closing valve that has a power failure, stops air feed, this device use can find that it closes inaccurate, reliably, can send security incident simultaneously; When there is abnormal urgency in pipeline; cut-off valve can cut off fast; protective system and device security; under stop valve full-gear; if selector valve system breaks down or have a power failure suddenly or downstream loine pressure sharply rises and when medium occurring flowing backwards; cannot cut off pipeline, lose the protective action to system and equipment, poor reliability.
Model utility content
The purpose of this utility model is to provide a kind of pneumatic band simple in structure and reliable emergency cut-off gateway manual Emergeny Cutoff Valves open in usual in order to solve above-mentioned the deficiencies in the prior art.
To achieve these goals, the manual Emergeny Cutoff Valves open in usual of a kind of pneumatic band that the utility model is designed, comprise valve body, valve rod, flap and valve gap, valve gap is fixedly connected with valve body, valve rod is arranged in valve body, valve rod is fixedly connected with flap, it is characterized in that: on described valve gap, Pneumatic actuator is installed, described Pneumatic actuator and upper cover joint are provided with packing seal cover from top to bottom successively, filler, Packing seat and elastic component, described Pneumatic actuator comprises cylinder, piston, spring, suction port and cylinder cap, described cylinder cap is arranged on cylinder upper end, piston and valve rod are fixed, and be placed in cylinder inner cavity, spring one end and piston are conflicted, the other end and cylinder surfaces are conflicted, suction port is arranged on cylinder cap upper-end surface.
Preferably, the second valve rod is also installed on described valve rod, this second valve rod is arranged in cylinder, and its upper end is provided with manual pulley.
Preferably, described flap is provided with sealing surface.
Preferably, between the second described valve rod and cylinder cap, be provided with cylinder cap stuffing box gland.
The manual Emergeny Cutoff Valves open in usual of pneumatic band that the utility model obtains, described Pneumatic actuator and upper cover joint are provided with packing seal cover from top to bottom successively, filler, Packing seat and elastic component, even if this structure can allow cut-off valve use for a long time wearing and tearing not extend and can leak according to elastic component, sealability is very good, make the pressure of gas pressure source enter upper cylinder by valve closing, when needs Open valve, air cylinder air source pressure need be laid down, valve is opened automatically, or commutate by solenoid valve power-off, gas pressure source pressure can be released to valve open automatically.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the Emergeny Cutoff Valves that manual pulley is installed.
In figure: valve body 1, valve rod 2, flap 3, valve gap 4, Pneumatic actuator 5, packing seal cover 6, filler 7, Packing seat 8, elastic component 9, inlet pipeline 10, outlet conduit 11, spring 12, piston 13, the second valve rod 14, cylinder cap stuffing box gland 15, suction port 16, pneumatic interface 17, cylinder 18, cylinder cap 19, manual pulley 20, sealing surface 31.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment:
As Fig. 1, shown in Fig. 2, the manual Emergeny Cutoff Valves open in usual of pneumatic band that the utility model provides, comprise valve body 1, valve rod 2, flap 3 and valve gap 4, in valve body 1, be provided with inlet pipeline 10 and outlet conduit 11, valve gap 4 is fixedly connected with valve body 1, valve rod 2 is arranged in valve body 1, valve rod 2 is fixedly connected with flap 3, on described valve gap 4, Pneumatic actuator 5 is installed, described Pneumatic actuator 5 is provided with packing seal cover 6 from top to bottom successively with upper cover 4 joints, filler 7, Packing seat 8 and elastic component 9, described Pneumatic actuator 5 comprises cylinder 18, piston 13, spring 12, suction port 16 and cylinder cap 19, described cylinder cap 19 is mounted on cylinder 18 upper ends by screw rod, piston 13 is fixed with valve rod 2, and be placed in cylinder 18 inner chambers, spring 12 one end and piston 13 are conflicted, the other end and cylinder 18 internal surfaces are conflicted, suction port 16 is arranged on cylinder cap 19 upper-end surfaces, cylinder 18 is provided with pneumatic interface 17 in lower end.
Preferably, the second valve rod 14 is also installed on described valve rod, this second valve rod 14 is arranged in cylinder, and its upper end is provided with manual pulley 20, and lower end is connected with the end of valve rod 2.
Preferably, described flap is provided with sealing surface 31, and sealing face and pipe surface are conflicted and sealed.
Preferably, between the second described valve rod and cylinder cap, be provided with cylinder cap stuffing box gland 15, prevent gas leakage.To further illustrating of the above-mentioned manual Emergeny Cutoff Valves open in usual of pneumatic band: valve is under without pressure outside operational circumstances, handwheel is rotated counterclockwise to top, flap is in normally open, while using in system, cut-off valve and gas pressure source support the use, the pressure of gas pressure source directly enters upper cylinder by valve closing, or by the solenoid valve commutation of switching on, solenoid valve can not be switched on for a long time, in order to avoid electromagnetic valve coil excessive heating affects the solenoid valve life-span, make the pressure of gas pressure source enter upper cylinder by valve closing.When needs Open valve, air cylinder air source pressure need be laid down, valve is opened automatically, or commutates by solenoid valve power-off, gas pressure source pressure can be released to valve and automatically open.As while there is air failure, can not throttle down, can select handwheel to turn clockwise on earth, throttle down, Accident prevention occurs, and the flow direction of valve working medium should be high in and low out, flows to just in time contrary with common stop valve.
For the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; its framework form can be flexible and changeable; just make some simple deduction or replace, all should be considered as belonging to the definite scope of patent protection of claims of being submitted to by the utility model.
Claims (4)
1. the manual Emergeny Cutoff Valves open in usual of pneumatic band, comprise valve body, valve rod, flap and valve gap, valve gap is fixedly connected with valve body, valve rod is arranged in valve body, valve rod is fixedly connected with flap, it is characterized in that: on described valve gap, Pneumatic actuator is installed, described Pneumatic actuator and upper cover joint are provided with packing seal cover from top to bottom successively, filler, Packing seat and elastic component, described Pneumatic actuator comprises cylinder, piston, spring, suction port and cylinder cap, described cylinder cap is arranged on cylinder upper end, piston and valve rod are fixed, and be placed in cylinder inner cavity, spring one end and piston are conflicted, the other end and cylinder surfaces are conflicted, suction port is arranged on cylinder cap upper-end surface.
2. the manual Emergeny Cutoff Valves open in usual of pneumatic band according to claim 1, is characterized in that: the second valve rod is also installed on described valve rod, and this second valve rod is arranged in cylinder, and its upper end is provided with manual pulley.
3. the manual Emergeny Cutoff Valves open in usual of pneumatic band according to claim 1, is characterized in that: described flap is provided with sealing surface.
4. the manual Emergeny Cutoff Valves open in usual of pneumatic band according to claim 1 and 2, is characterized in that: between the second described valve rod and cylinder cap, be provided with cylinder cap stuffing box gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298439.2U CN203906813U (en) | 2014-06-06 | 2014-06-06 | Pneumatic and manual normally-open emergency cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298439.2U CN203906813U (en) | 2014-06-06 | 2014-06-06 | Pneumatic and manual normally-open emergency cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906813U true CN203906813U (en) | 2014-10-29 |
Family
ID=51781094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298439.2U Expired - Fee Related CN203906813U (en) | 2014-06-06 | 2014-06-06 | Pneumatic and manual normally-open emergency cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906813U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500479A (en) * | 2014-12-23 | 2015-04-08 | 江苏远望仪器有限公司 | Automatic-manual linear-travel valve actuator |
| CN107101026A (en) * | 2017-06-01 | 2017-08-29 | 浙江金龙自控设备有限公司 | Safety cut-off valve and its control system |
| CN107218430A (en) * | 2016-05-06 | 2017-09-29 | 上海申吉仪表有限公司 | A kind of Pneumatic three-way switching valve |
| CN107327606A (en) * | 2017-08-10 | 2017-11-07 | 四川成都空分配套阀门有限公司 | Air bag stop valve |
| CN108426085A (en) * | 2018-04-28 | 2018-08-21 | 张家港富瑞阀门有限公司 | Stop valve cylinder and the pneumatic operated valve with this cylinder and LNG ultralow temperature pipelines |
| CN109458478A (en) * | 2018-12-28 | 2019-03-12 | 明珠阀门集团有限公司 | A kind of passive fire emergency fuses valve automatically |
| RU2702055C1 (en) * | 2019-02-22 | 2019-10-03 | Общество с ограниченной ответственностью "Корпорация Акционерной Компании "Электросевкавмонтаж" | Shutoff valve with a drive and a control system thereof |
| CN110345263A (en) * | 2019-07-26 | 2019-10-18 | 杨佳洲 | A kind of Pneumatic two-position cut-off valve |
| CN111043341A (en) * | 2019-12-31 | 2020-04-21 | 江苏高中压阀门有限公司 | Quick cut-off valve |
| CN111535766A (en) * | 2020-05-13 | 2020-08-14 | 中石化石油工程技术服务有限公司 | Drilling fluid circulation system |
-
2014
- 2014-06-06 CN CN201420298439.2U patent/CN203906813U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500479A (en) * | 2014-12-23 | 2015-04-08 | 江苏远望仪器有限公司 | Automatic-manual linear-travel valve actuator |
| CN107218430A (en) * | 2016-05-06 | 2017-09-29 | 上海申吉仪表有限公司 | A kind of Pneumatic three-way switching valve |
| CN107101026A (en) * | 2017-06-01 | 2017-08-29 | 浙江金龙自控设备有限公司 | Safety cut-off valve and its control system |
| CN107327606A (en) * | 2017-08-10 | 2017-11-07 | 四川成都空分配套阀门有限公司 | Air bag stop valve |
| CN108426085A (en) * | 2018-04-28 | 2018-08-21 | 张家港富瑞阀门有限公司 | Stop valve cylinder and the pneumatic operated valve with this cylinder and LNG ultralow temperature pipelines |
| CN109458478A (en) * | 2018-12-28 | 2019-03-12 | 明珠阀门集团有限公司 | A kind of passive fire emergency fuses valve automatically |
| RU2702055C1 (en) * | 2019-02-22 | 2019-10-03 | Общество с ограниченной ответственностью "Корпорация Акционерной Компании "Электросевкавмонтаж" | Shutoff valve with a drive and a control system thereof |
| CN110345263A (en) * | 2019-07-26 | 2019-10-18 | 杨佳洲 | A kind of Pneumatic two-position cut-off valve |
| CN111043341A (en) * | 2019-12-31 | 2020-04-21 | 江苏高中压阀门有限公司 | Quick cut-off valve |
| CN111535766A (en) * | 2020-05-13 | 2020-08-14 | 中石化石油工程技术服务有限公司 | Drilling fluid circulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20180606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |