CN202418614U - Normally-opened safety gas valve - Google Patents
Normally-opened safety gas valve Download PDFInfo
- Publication number
- CN202418614U CN202418614U CN2012200120512U CN201220012051U CN202418614U CN 202418614 U CN202418614 U CN 202418614U CN 2012200120512 U CN2012200120512 U CN 2012200120512U CN 201220012051 U CN201220012051 U CN 201220012051U CN 202418614 U CN202418614 U CN 202418614U
- Authority
- CN
- China
- Prior art keywords
- valve
- explosion
- valve rod
- proof cavity
- fixed core
- 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 - Fee Related
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Abstract
The utility model provides a normally-opened safety gas valve, which is characterized in that the normally-opened safety gas valve is provided with a valve body, a valve bonnet is fixedly arranged on the valve body, a valve rod penetrates through the valve bonnet, the lower end of the valve rod is provided with a sealing component corresponding to a valve port in the valve body, a return spring is arranged between the valve bonnet and the sealing component, an explosion-proof cavity is fixedly arranged outside the valve bonnet, a fixed core and an electromagnetic coil for winding the fixed core are arranged in the explosion-proof cavity, the electromagnetic coil is connected with a controller, the valve rod penetrates through the explosion-proof cavity and the electromagnetic coil, a movable core is fixedly arranged on the valve rod and positioned above the fixed core, a valve closing handle is arranged at the end of the valve rod positioned outside the explosion-proof cavity, and a locking component is arranged between the valve rod and the explosion-proof cavity. The sealing component is separated from the valve port when the movable core is separated from the fixed core, and the sealing component is attached to the valve port when the movable core attracts the fixed core. The safety gas valve is normally opened, the valve is closed to function in ensuring safety when gas leakage is detected, and the valve can be manually and emergently closed by the aid of the valve closing handle to ensure safety if power is cut off.
Description
Technical field
The utility model belongs to a kind of electromagnetic valve structure, relates in particular to a kind of structure that is used for the safety valves for gas of gas pipeline.
Background technique
The open type safety valves for gas is mounted in the safety installation in rock gas and the inflammable gas equipment pipeline distributing system; Its valve body is connected with gas pipeline, and generally speaking, valve rod is positioned at station; The mechanical latch assembly locking that is provided with between valve gap and the valve rod, thus keep normally open.After the combustion gas leakage was detected by fuel gas alarm, the electrical signal that is sent started the electromagnetic coil in the safety valve, produced magnetic field, and the moving iron core that sets firmly on the valve rod is descended by magnetic field suction, thereby throttle down cuts off pipeline, plays safety effect.But if combustion gas had a power failure when revealing, then valve can't be closed, and possibly have an accident.
The model utility content
The utility model provides a kind of open type safety valves for gas, and its purpose solves the shortcoming that existing technology exists, and a kind of open type safety valves for gas that can manual opening-closing on the electronic basis of closing is provided.
The utility model solves the technological scheme that its technical problem adopted:
The open type safety valves for gas is characterized in that: have valve body, be installed with valve gap on the valve body, valve rod passes valve gap, the valve rod lower end be provided with valve body in the corresponding black box of valve port, between valve gap and black box, be provided with Returnning spring; Valve gap is installed with explosion-proof cavity outward, is provided with the electromagnetic coil of fixed core and winding fixed core in the explosion-proof cavity, and electromagnetic coil is connected with controller; Valve rod passes explosion-proof cavity and electromagnetic coil, is installed with moving iron core on the valve rod, and moving iron core is positioned at the fixed core top, and valve rod is positioned at the external end of explosion-proof cavity and is provided with pass valve handle, is provided with latch assembly between valve rod and the explosion-proof cavity; When moving iron core separated with fixed core, black box separated with valve port, and when moving iron core and fixed core adhesive, black box and valve port are fitted.
The usefulness of the utility model is:
The solenoid valve of the utility model is under normal state, and after valve was driven in craft, valve rod had been positioned at station, valve opening under the latch assembly effect; After the combustion gas leakage was detected, the electrical signal that controller sends started the electromagnetic coil in the safety valve, produced magnetic field; The moving iron core that sets firmly on the valve rod is descended by magnetic field suction, thereby throttle down plays safety effect; If have a power failure, can be artificial urgent through closing valve handle throttle down, guarantee safety.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the schematic representation of the utility model.
Embodiment
As shown in Figure 1; The utlity model has valve body 1, be installed with valve gap 2 on the valve body 1, valve rod 3 passes valve gap 2; Valve rod 3 lower ends be provided with valve body 1 in valve port 11 corresponding black boies 4; Be provided with O RunddichtringO 31 between valve rod 3 and the black box 4 and reach sealing effect and form the pilot valve structure, form epicoele 42 between black box 4 and the valve gap 2, between valve gap 2 and black box 4, be provided with Returnning spring 5; The valve gap 2 outer explosion-proof cavitys of being made up of explosion-proof cavity shell 61 and explosion-proof cavity lid 62 6 that are installed with are installed with fixed core 70 and the electromagnetic coil 7 that twines fixed core 70 in the explosion-proof cavity 6, electromagnetic coil 7 is connected with controller 71; Valve rod 3 passes explosion-proof cavity 6 and electromagnetic coil 7; Be installed with moving iron core 8 on the valve rod 3, moving iron core 8 is positioned at fixed core 70 tops, and valve rod 3 is positioned at explosion-proof cavity 6 outer ends and is provided with pass valve handle 31; Be provided with latch assembly 9 between valve rod 3 and the explosion-proof cavity 6; This latch assembly 9 is a mechanical latch, and valve rod 3 moves upward to locked position and can be stuck, and valve rod 3 moves downward then release.
During actual the use, the safety valve is in normally open, and just valve rod 3 is in station, and latch assembly 9 blocks valve rod 3, and fixed core 70 separates with moving iron core 8, and black box 4 separates with valve port 11.
When gas leakage was detected, signal sent to controller 71, and controller 71 makes electromagnetic coil 7 energisings produce magnetic field; Moving iron core 8 falls under the action of a magnetic field and fixed core 70 adhesives; And drive valve rod 3 and move downward, latch assembly 9 is unlocked, and black box 4 falls to fitting up to black box 4 together with valve rod 3 under the effect of Returnning spring 5 and closes valve port 11; At this moment O RunddichtringO 31 is with sealing between valve rod 3 and the black box 4, and safety valve is closed like this.
If finding fault can't supply power; Should artificial closed safe valve, use manpower to force by ShiShimonoseki valve handle 31, valve rod 3 moves downward; Latch assembly 9 is unlocked; Black box 4 falls together with valve rod 3 under the effect of Returnning spring 5 and closes valve port 11 up to black box 4, and at this moment O RunddichtringO 31 is with sealing between valve rod 3 and the black box 4, and safety valve is closed like this.
In the time will opening the safety-valve; Valve handle 31 is closed in men hoisting, and O RunddichtringO 31 breaks away from and depressurization with black box 4, is equivalent to open the pilot valve venting; Pressure in the epicoele 42 that forms between black box 4 and the valve gap 2 releases; Valve rod 3 drives black boies 4 and moves upward and leave valve port 11 and Open valve rises to certain altitude up to valve rod 3, and latch assembly 9 pins valve rods 3 makes safety valve remain on normally open.
Claims (1)
1. open type safety valves for gas, it is characterized in that: have valve body, be installed with valve gap on the valve body, valve rod passes valve gap, the valve rod lower end be provided with valve body in the corresponding black box of valve port, between valve gap and black box, be provided with Returnning spring; Valve gap is installed with explosion-proof cavity outward, is provided with the electromagnetic coil of fixed core and winding fixed core in the explosion-proof cavity, and electromagnetic coil is connected with controller; Valve rod passes explosion-proof cavity and electromagnetic coil, is installed with moving iron core on the valve rod, and moving iron core is positioned at the fixed core top, and valve rod is positioned at the external end of explosion-proof cavity and is provided with pass valve handle, is provided with latch assembly between valve rod and the explosion-proof cavity; When moving iron core separated with fixed core, black box separated with valve port, and when moving iron core and fixed core adhesive, black box and valve port are fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200120512U CN202418614U (en) | 2012-01-12 | 2012-01-12 | Normally-opened safety gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200120512U CN202418614U (en) | 2012-01-12 | 2012-01-12 | Normally-opened safety gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418614U true CN202418614U (en) | 2012-09-05 |
Family
ID=46743384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200120512U Expired - Fee Related CN202418614U (en) | 2012-01-12 | 2012-01-12 | Normally-opened safety gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253474A (en) * | 2018-11-19 | 2019-01-22 | 北京瑞斯贝科技有限公司 | A kind of gas control system and its control method |
-
2012
- 2012-01-12 CN CN2012200120512U patent/CN202418614U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253474A (en) * | 2018-11-19 | 2019-01-22 | 北京瑞斯贝科技有限公司 | A kind of gas control system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HANTEMU VALVE MANUFACTURE CO., LTD. Free format text: FORMER OWNER: PAN XIUZHONG Effective date: 20121010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325103 WENZHOU, ZHEJIANG PROVINCE TO: 323908 LISHUI, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121010 Address after: 323908 Zhejiang city of Lishui province Qingtian Dongyuan County town of Dongyuan Yang Industrial Zone No. 1 at the end of the year Patentee after: Zhejiang Hantemu Valve Manufacture Co., Ltd. Address before: Wu Niu Zhen Xi Wan Pier Road 325103 No. 10 Zhejiang County of Yongjia Province Patentee before: Pan Xiuzhong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20130112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |