CN101280888B - Indoor gas pipeline leakage protecting method and apparatus - Google Patents
Indoor gas pipeline leakage protecting method and apparatus Download PDFInfo
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- CN101280888B CN101280888B CN200810047854A CN200810047854A CN101280888B CN 101280888 B CN101280888 B CN 101280888B CN 200810047854 A CN200810047854 A CN 200810047854A CN 200810047854 A CN200810047854 A CN 200810047854A CN 101280888 B CN101280888 B CN 101280888B
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- solenoid valve
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Abstract
The invention provides a gas pipe line leakage protection method comprising steps of: acquiring flame signal of gas kitchen ranges real time; extracting flow capacity information of gas house lead in pipeline real time; shutting down the house lead in gas pipeline and alarming when flow capacity information exist on the gas meter and non flame signal of the gas kitchen ranges in 10-30s. according to invention, the device comprises a flame signal capturing module, a control circuit, a normally closed solenoid valve, a flow capacity signal capturing module and a alarm; the control circuit acquires working condition information of the gas kitchen ranges with the flame signal capturing module, flow capacity information of the house lead in pipeline is acquired by the flow capacity signal capturing module, when the flow capacity signal capturing module has flow capacity information and the flame signal capturing module has not potential signal, the control circuit separately sends signal to the normally closed solenoid valve and the alarm. The invention resolves problem that possible leakage of the indoor gas pipe system may carry potential safety hazard, which effectively protects users, and manpower is saved, also operating cost of city gas pipeline is reduced.
Description
Technical field
The invention belongs to the pipeline gas safety technique, be specifically related to a kind of indoor gas pipeline leakage protecting method and device thereof.
Background technique
At present the indoor gas pipeline does not generally have special safety control, mainly is in combustion gas, to add smellyly, judge if any the sense of smell of leaking the general people of dependence, but many times family nobody the time in case leak and very easily cause serious accident.Existing leakage preventing technology mainly contains such several respects; A kind of is leakage alarm or device, comes the leakage of perception combustion gas, this technology to be not suitable for being applied to the place in the family through the inflammable gas sensing element; Mainly be that often cost is too high because of reliable quality; The often performance that cost is low is unreliable, adds the sampling point position effectively perception leakage sometimes of sensing element, can't guarantee its safety at all; Also having a kind of technology is overcurrent protection; When the sebific duct of burner comes off suddenly; The principle of utilizing gas flow to increase considerably is suddenly cut off gas valve, and this technology has significant limitation; The leakage of combustion gas many times is more slowly, and above-mentioned in this case technology just can't provide effective protection.At present some big gas companies are used gas safety in order to strengthen the user, adopt regularly the measure of leak detection to the doorstep, and that has improved the user to a certain extent uses gas safety, but can not tackle the problem at its root.
Summary of the invention
The object of the present invention is to provide a kind of indoor gas pipeline leakage protecting method, the small leakage that this method occurs for any position of indoor gas pipeline, perception timely and effectively, and cut off the house lead in total valve of gas pipeline rapidly; The present invention also provides the device of realizing this method.
Indoor gas pipeline leakage protecting method provided by the invention the steps include:
The 1st step was obtained the flare up fire of combustion gas tool in real time;
Flow information on the 2nd step extract real-time combustion gas house lead in pipeline;
There was flow information in the 3rd step when the house lead in gas pipeline, and in 10～30 seconds, during the flare up fire of no combustion gas tool, cut off the house lead in gas pipeline, and warning.
Indoor gas pipeline leakage protective gear provided by the invention is characterized in that: this device comprises flare up fire acquisition module, control circuit, normally closed solenoid valve, flow signal acquisition module and alarm; Control circuit links to each other with flow signal acquisition module, flare up fire acquisition module, normally closed solenoid valve and alarm respectively; The flare up fire acquisition module is connected with the input end of the solenoid valve of combustion gas tool blowout protection; The flow signal acquisition module is installed on the house lead in pipeline of combustion gas, and normally closed solenoid valve is installed on the house lead in pipeline of combustion gas; Control circuit obtains the work state information of combustion gas tool through the flare up fire acquisition module; And obtain the flow information on the house lead in pipeline of combustion gas through the flow signal acquisition module; When the flow signal acquisition module had flow information and flare up fire acquisition module not to obtain electric potential signal, control circuit sent signal respectively and gives normally closed solenoid valve and alarm.
All domestic gas appliances all stipulate to have flame-out protection device in NBS at present, and the flare up fire of therefore obtaining indoor all burners is feasible.Domestic gas meter all is the epithelium table that adopts positive displacement basically, and small flow can both obtain in perception, so flux signal also is reliable.
Indoor gas pipeline leakage protecting method provided by the invention; Utilize the flare up fire that flame-out protection device produced of burner,, a normally closed solenoid valve is set on the house lead in gas pipeline in conjunction with the flux signal of installing on house lead in gas meter or the house lead in gas pipeline that flow transducer produced; When control system is charged, get final product opens solenoid valve; System is in running order, and at this moment system can monitor the traffic conditions of the flare up fire and the gas meter (flow transducer) of burner at any time, if gas meter (flow transducer) has flow to exist; And wherein any one combustion gas has the flame existence; Then keeping solenoid valve is opening state, in case all burners that occur being monitored all do not have flare up fire, and gas meter still constantly has flow to have (even very little flow) in the regular hour; Then system can close solenoid valve, and the necessary hand-reset that can not automatically reset.
The present invention is very reliable to the leak protection of indoor gas pipeline system; For example sebific duct comes off, hose aging splits, mouse breaks by the teeth, valve leak (comprising pipeline valve and burner valve), joint is loosening or any even very small leakage; Can both effectively cut off fuel gas pipeline; So long as indoorly do not have burner gas meter (flow transducer) in burning to have flow to exist, system all can in time close house steward's valve.This device can provide reliable safety protection to whole indoor gas pipeline.
If should technology can obtain extensive popularization and application, just can solve the indoor gas pipeline system and possibly leak the security hidden trouble that exists that causes, protect vast pipeline gas user's the security of the lives and property effectively.Gas company also can be saved manpower, reduces the operating cost of pipeline network of fuel gas in city.
Description of drawings
Fig. 1 is the structural representation (lead connection) of a kind of embodiment of indoor gas pipeline leakage protective gear of the present invention;
Fig. 2 is the structural representation (wireless transmission) of the another kind of embodiment of indoor gas pipeline leakage protective gear of the present invention.
Embodiment
Below in conjunction with accompanying drawing and instance the present invention is done further detailed explanation.
Embodiment 1:
As shown in Figure 1, indoor gas pipeline leakage protective gear provided by the invention comprises flare up fire acquisition module 4, control circuit 5, normally closed solenoid valve 7, alarm 6 and flow signal acquisition module 8.In this instance, flare up fire acquisition module 4 adopts the electric potential signal detection unit.
Flow signal acquisition module 8 is installed on the house lead in pipeline of combustion gas, is used to obtain the flow information on the combustion gas house lead in pipeline, can be the output signal of gas meter, also can be the signal that other gas flow sensor provides.
The electric potential signal detection unit is connected with the input end of the solenoid valve 3 of combustion gas tool blowout protection through lead, and the electric potential signal that obtains solenoid valve 3 obtains the work state information of combustion gas tool.Normally closed solenoid valve 7 is installed on the house lead in pipeline of combustion gas the whole indoor gas pipeline supply of SC sigmal control that it provides according to control circuit 5 with flow signal acquisition module 8.Control circuit 5 links to each other with electric potential signal detection unit, flow signal acquisition module 8, normally closed solenoid valve 7 and alarm 6 respectively.Control circuit 5 obtains the work state information of combustion gas tool through the electric potential signal monitoring cell; And obtain the flow information on the house lead in pipeline of combustion gas through flow signal acquisition module 8, if flow signal acquisition module 8 has flow information, and the electric potential signal detection unit does not obtain electric potential signal; Explain that there is leakage in the indoor gas pipeline system; Control circuit 5 sends signal respectively and gives normally closed solenoid valve 7 and alarm 6, and normally closed solenoid valve 7 is closed, and alarm 6 sends alarm signal.Alarm 6 can adopt various alarm appliances such as audible-visual annunciator.
In the flame-out protection device of the burner 1 of combustion gas tool; When flame probe 2 has monitored flame; Will export one and drive electromotive force to blowout protection solenoid valve 3; The electric potential signal monitoring cell is connected with the input end of solenoid valve 3 through lead, and whether control circuit 5 is loaded electromotive force through monitoring solenoid valve 3 is judged whether flame exists.
In this control circuit; As long as system power-up is an opens solenoid valve 7, system is in guard mode, when following situation not occurring, keeps the opening state of solenoid valve; When control circuit monitors the gas meter flux signal; Do not monitor any one road flare up fire at 10～30 seconds in (general desirable about 20 seconds), then close solenoid valve 7, and start alarm 6.The back system that reports to the police must remove by hand to report to the police and just can reset.
The electric potential signal monitoring cell is reserved enough ports before the gas meter or in the control circuit in the table, is connected respectively to the input port on the blowout protection solenoid valve of indoor each combustion gas tool through lead.Circuit lays along gas pipeline, to the new development user, can carry out simultaneously with pipeline construction, can transform the old user.
Embodiment 2:
As shown in Figure 2; Change wired transfer mode of the flame testing signal in the system shown in Figure 1 into wireless transmission; On each combustion gas tool, install the data transmission module 9 of a special use for this reason additional, the flame monitoring signal is outwards sent with cipher mode, each burner of each family uses identical coded signal; A data reception module 10 corresponding with data transmission module 9 also is installed in control circuit, is specifically designed to and receives predetermined coded signal.
This system need not carry out interior wiring, is suitable for old user's transformation.
Claims (2)
1. indoor gas pipeline leakage protective gear; It is characterized in that: this device comprises flare up fire acquisition module (4), control circuit (5), normally closed solenoid valve (7), flow signal acquisition module (8) and alarm (6): control circuit (5) links to each other with flow signal acquisition module (8), flare up fire acquisition module (4), normally closed solenoid valve (7) and alarm (6) respectively; Flare up fire acquisition module (4) is connected with the input end of the solenoid valve (3) of combustion gas tool blowout protection; Flow signal acquisition module (8) is installed on the house lead in pipeline of combustion gas, and normally closed solenoid valve (7) is installed on the house lead in pipeline of combustion gas; Control circuit (5) obtains the work state information of combustion gas tool through flare up fire acquisition module (4); And obtain the flow information on the house lead in pipeline of combustion gas through flow signal acquisition module (8); When flow signal acquisition module (8) has flow information and flare up fire acquisition module (4) when not obtaining electric potential signal, control circuit (5) sends signal respectively and gives normally closed solenoid valve (7) and alarm (6).
2. indoor gas pipeline leakage protective gear according to claim 1 is characterized in that flare up fire acquisition module (4) is the electric potential signal detection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810047854A CN101280888B (en) | 2008-05-28 | 2008-05-28 | Indoor gas pipeline leakage protecting method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810047854A CN101280888B (en) | 2008-05-28 | 2008-05-28 | Indoor gas pipeline leakage protecting method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101280888A CN101280888A (en) | 2008-10-08 |
| CN101280888B true CN101280888B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810047854A Expired - Fee Related CN101280888B (en) | 2008-05-28 | 2008-05-28 | Indoor gas pipeline leakage protecting method and apparatus |
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| Country | Link |
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| CN (1) | CN101280888B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846988B (en) * | 2010-04-30 | 2013-04-24 | 深圳职业技术学院 | Fuel gas monitoring method and device |
| CN106015946A (en) * | 2016-06-28 | 2016-10-12 | 梁森 | Leakage monitoring device for tap water pipeline |
| CN109386737B (en) * | 2017-08-09 | 2023-05-09 | 中国石油化工股份有限公司 | Leakage detection device and method for safety cut-off valve of oxygen-enriched fuel system |
| CN109488884A (en) * | 2019-01-14 | 2019-03-19 | 长江大学 | A kind of device that gives out of gas of anti-leak |
| CN109945242A (en) * | 2019-03-22 | 2019-06-28 | 郦剑飞 | Preventing gas leakage system and method and the method for judging gas leakage position |
| CN111750277A (en) * | 2019-03-26 | 2020-10-09 | 济南点燃智能科技有限公司 | User side gas metering safety system |
| CN109882743B (en) * | 2019-04-12 | 2021-06-22 | 广州燃气集团有限公司 | Gas leakage alarm method and system |
| CN110595072A (en) * | 2019-09-25 | 2019-12-20 | 侯钢 | Automatic protection device for preventing gas leakage |
| CN112414699B (en) * | 2020-11-03 | 2023-04-07 | 广州东部发展燃气有限公司 | Gas leakage detection device and method |
| CN114383160A (en) * | 2021-12-23 | 2022-04-22 | 广东万和新电气股份有限公司 | Gas leakage prevention method, controller and system |
| CN114360216B (en) * | 2022-01-08 | 2023-09-22 | 岳涛 | Gas alarm device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2587087A1 (en) * | 1985-09-12 | 1987-03-13 | Bentz Gheorghe | Device for detecting gas leaks in an installation |
| CN2057725U (en) * | 1989-06-16 | 1990-05-30 | 中国人民解放军89000部队 | Multi-functional deomestic gas alarm |
| CN2195703Y (en) * | 1994-06-13 | 1995-04-26 | 袁国华 | Safety device for multi-function gaseous-burner |
-
2008
- 2008-05-28 CN CN200810047854A patent/CN101280888B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2587087A1 (en) * | 1985-09-12 | 1987-03-13 | Bentz Gheorghe | Device for detecting gas leaks in an installation |
| CN2057725U (en) * | 1989-06-16 | 1990-05-30 | 中国人民解放军89000部队 | Multi-functional deomestic gas alarm |
| CN2195703Y (en) * | 1994-06-13 | 1995-04-26 | 袁国华 | Safety device for multi-function gaseous-burner |
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| CN101280888A (en) | 2008-10-08 |
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