CN2522696Y - Automatic closing valve for domestic pipeline gas - Google Patents
Automatic closing valve for domestic pipeline gas Download PDFInfo
- Publication number
- CN2522696Y CN2522696Y CN 01273734 CN01273734U CN2522696Y CN 2522696 Y CN2522696 Y CN 2522696Y CN 01273734 CN01273734 CN 01273734 CN 01273734 U CN01273734 U CN 01273734U CN 2522696 Y CN2522696 Y CN 2522696Y
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- CN
- China
- Prior art keywords
- spring
- gas
- couple axle
- base
- stop valve
- 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 discloses an automatic cut-off valve for a family pipeline fuel gas with a prophase leak detection function, which is characterized in that: a sensor is connected on an air-in mouth of the automatic valve for the fuel gas stops. The sensor is an air-pressure difference sensor, which comprises a base seat, a cover, a float plug, a linkage axis and a spring. The base seat is fixed on one end of an exit of the air-in mouth; the base seat is provided with the linkage axis; the spring and the float plug are covered on the linkage axis; a spring cover is arranged on the end of the linkage axis near to the exit of the air-in mouth; and a float plug cover is arranged on the end of the linkage axis far from the exit of the air-in mouth; a base cover is covered on the base seat. The automatic cut-off valve for a family pipeline fuel gas in the utility model is characterized in that: when the micro leakage situation happens in the igniting system, the valve switch can not be opened automatically, and in the fuel gas using process, the utility model can realize the automatic close-off function if the situations such as sudden gas stopping, gas overflow and over-pressure happen. The utility model has the advantages of safe function, simple structure, reliable performance and low cost and so on.
Description
Affiliated field: the utility model belongs to self acting stop valve, particularly a kind of home pipeline combustion gas self acting stop valve with leak detection function in early stage.
Background technique: a kind of pipeline gas self closing stop valve of stopping the supple of gas or steam is arranged at present, its pressured poor, gravity, magnetic force when pipe network is stopped the supple of gas or steam can be closed automatically, as application number is 962355178, the patent application that name is called the combustion gas autocontrolled safety valve discloses this principle, the problem that can close automatically when this valve has solved the pipe network combustion gas, if but trace appears in buner system when revealing, this valve also can be opened, and uses the gas system to leave accident potential.
Summary of the invention: the purpose of this utility model is at the problems referred to above, provide under a kind of situation that little leakage arranged at buner system, valve switch can not be opened, and in the process of gas to burst is stopped the supple of gas or steam, super stream, superpressure can be closed automatically home pipeline combustion gas self acting stop valve, it has peace and arranges function, and simple in structure, reliable performance, cost of production are low.
The technical solution of the utility model is to be at former number of patent application: stop the supple of gas or steam design improvement on the basis of self closing stop valve of 962355178 combustion gas.This home pipeline combustion gas self acting stop valve is characterized in that: be connected with sensor in the air inlet nozzle of self closing stop valve is stopped the supple of gas or steam in combustion gas.
Described sensor is the gas differential pressure sensor, and it comprises that base, lid, floating plug, couple axle, spring connect and compose; Base is fixed on an end of air inlet nozzle outlet, is with couple axle on the base, is with spring and floating plug on the couple axle, and from the near end of air inlet nozzle outlet, floating plug is enclosed within couple axle from an air inlet nozzle outlet end far away to spring housing at couple axle; Lid is enclosed within on the base.
Covering of described sensor is pressed with setting sleeve; Be connected with protecting wire net on the setting sleeve.
Floating plug and couple axle in the described sensor are together fixedly sleeved; Spring is to be actively socketed on the couple axle, and spring one end contacts with base, and the other end contacts with floating plug.
Characteristics of the present utility model are: it is in the air inlet nozzle of self closing stop valve is stopped the supple of gas or steam in former combustion gas the gas differential pressure sensor to be housed, floating plug in the sensor, produce the unbalance and generation displacement of gas differential pressure owing to revealing, the block airflow passage, close by the self closing stop valve of stopping the supple of gas or steam then, cut off source of the gas, so its valve switch when buner system has little leakage can not be opened.And in using the process of combustion gas, as run into suddenly and stop the supple of gas or steam, when super stream, superpressure situation, valve still can be closed automatically.It is simple in structure, reliable performance, and cost of production is low.
Below in conjunction with embodiment's accompanying drawing the utility model is described further.
Description of drawings: Fig. 1 is the example structure schematic representation.
Among the figure: 1, base; 2, lid; 3, floating plug; 4, couple axle; 5, spring; 6, setting sleeve; 7, protecting wire net; 8, the combustion gas self closing stop valve of stopping the supple of gas or steam.
Embodiment is connected with sensor as shown in the figure in the air inlet nozzle of self closing stop valve is stopped the supple of gas or steam in combustion gas.Sensor is the gas differential pressure sensor, sensor base 1 is fixed on an end of air inlet nozzle air outlet, be with couple axle 4 on the base 1, be with spring 5 and floating plug 3 on the couple axle 4, spring 5 is enclosed within couple axle 4 end near from the air inlet nozzle air outlet, and floating plug 3 is enclosed within couple axle 4 end far away from the air inlet nozzle air outlet; Lid 2 covers on the base 1.On lid 2, be pressed with setting sleeve 6; Be connected with protecting wire net 7 on the setting sleeve 6.When the combustion gas system has trace to reveal, open the combustion gas self closing stop valve 8 of stopping the supple of gas or steam this moment, because gas differential pressure is unbalance, floating plug 3 and couple axle 4 promptly float to the air pressure low side, the block airflow passage, causing that combustion gas is stopped the supple of gas or steam dies in the self closing stop valve 8, impel stop the supple of gas or steam self closing stop valve 8 of combustion gas to realize stopping the supple of gas or steam self-closing function, do not get rid of as leak source, the stop the supple of gas or steam switch of self closing stop valve 8 of combustion gas promptly can not normally be opened, reveal as not occurring, open the combustion gas self closing stop valve 8 of stopping the supple of gas or steam this moment, and air-flow still can make floating plug 3 and couple axle 4 to the outlet end displacement, because air pressure is balance, by spring 5 floating plug 3 and couple axle 4 are resetted, switch can not open and close and can just use gas always this moment.Floating plug 3 in the sensor is together fixedly sleeved with couple axle 4, and floating plug 3 links with axle 4.Spring 5 is to be actively socketed on the couple axle 4, and spring 5 one ends contact with base 1, and the other end contacts with floating plug 3, and the floating plug 3 in the sensor resets by spring 5, and the floating plug 3 in the sensor is axial floats, can rotate and does not do radial motion.
Claims (4)
1, a kind of home pipeline combustion gas self acting stop valve is characterized in that: be connected with sensor in the air inlet nozzle of self closing stop valve is stopped the supple of gas or steam in combustion gas.
2, a kind of home pipeline combustion gas self acting stop valve according to claim 1, it is characterized in that: described sensor is the gas differential pressure sensor, it comprises that base, lid, floating plug, couple axle, spring connect and compose; Base is fixed on an end of air inlet nozzle outlet, is with couple axle on the base, is with spring and floating plug on the couple axle, and from the near end of air inlet nozzle outlet, floating plug is enclosed within couple axle from an air inlet nozzle outlet end far away to spring housing at couple axle; Lid is enclosed within on the base.
3, a kind of home pipeline combustion gas self acting stop valve according to claim 1, it is characterized in that: covering of described sensor is pressed with setting sleeve; Be connected with protecting wire net on the setting sleeve.
4, a kind of home pipeline combustion gas self acting stop valve according to claim 1, it is characterized in that: floating plug and couple axle in the described sensor are together fixedly sleeved; Spring is to be actively socketed on the couple axle, and spring one end contacts with base, and the other end contacts with floating plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273734 CN2522696Y (en) | 2001-12-17 | 2001-12-17 | Automatic closing valve for domestic pipeline gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01273734 CN2522696Y (en) | 2001-12-17 | 2001-12-17 | Automatic closing valve for domestic pipeline gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522696Y true CN2522696Y (en) | 2002-11-27 |
Family
ID=33678597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01273734 Expired - Fee Related CN2522696Y (en) | 2001-12-17 | 2001-12-17 | Automatic closing valve for domestic pipeline gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522696Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374326A (en) * | 2011-11-28 | 2012-03-14 | 张成祥 | Gas self-closing valve with long-distance hose falloff and microleakage closing functions |
| CN102720868A (en) * | 2012-06-11 | 2012-10-10 | 陕西大唐智能仪器仪表有限公司 | Differential pressure self closing device with built-in spherical body |
| CN102720869A (en) * | 2012-06-11 | 2012-10-10 | 陕西大唐智能仪器仪表有限公司 | Valve sheet type overflowing differential pressure device |
| CN102720864A (en) * | 2012-06-11 | 2012-10-10 | 陕西大唐智能仪器仪表有限公司 | Valve sheet type fuel gas overflowing differential pressure sensor |
| CN102748513A (en) * | 2012-06-11 | 2012-10-24 | 陕西大唐智能仪器仪表有限公司 | Over-flowing-pressure-difference self-closing valve |
-
2001
- 2001-12-17 CN CN 01273734 patent/CN2522696Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374326A (en) * | 2011-11-28 | 2012-03-14 | 张成祥 | Gas self-closing valve with long-distance hose falloff and microleakage closing functions |
| CN102720868A (en) * | 2012-06-11 | 2012-10-10 | 陕西大唐智能仪器仪表有限公司 | Differential pressure self closing device with built-in spherical body |
| CN102720869A (en) * | 2012-06-11 | 2012-10-10 | 陕西大唐智能仪器仪表有限公司 | Valve sheet type overflowing differential pressure device |
| CN102720864A (en) * | 2012-06-11 | 2012-10-10 | 陕西大唐智能仪器仪表有限公司 | Valve sheet type fuel gas overflowing differential pressure sensor |
| CN102748513A (en) * | 2012-06-11 | 2012-10-24 | 陕西大唐智能仪器仪表有限公司 | Over-flowing-pressure-difference self-closing valve |
| CN102720864B (en) * | 2012-06-11 | 2014-07-30 | 陕西大唐智能仪器仪表有限公司 | Valve sheet type fuel gas overflowing differential pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |