CN101887625A - Gas safety protector - Google Patents
Gas safety protector Download PDFInfo
- Publication number
- CN101887625A CN101887625A CN 201010227412 CN201010227412A CN101887625A CN 101887625 A CN101887625 A CN 101887625A CN 201010227412 CN201010227412 CN 201010227412 CN 201010227412 A CN201010227412 A CN 201010227412A CN 101887625 A CN101887625 A CN 101887625A
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- gas
- wave rectifier
- relay
- full wave
- alarm
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Abstract
The invention discloses a gas safety protector. The gas safety protector comprises a step-down transformer (1), a gas sensor (3) and an alarm (8), wherein an output end of the step-down transformer is provided with a full-wave rectifier (2); the gas sensor is connected with the full-wave rectifier; a probe electrode of the gas sensor is connected with the negative electrode of the full-wave rectifier through an adjustable resistor (4); a movable electrode of the adjustable resistor is connected with an attracting coil of a relay (7) through a rectifier diode (5) and a triode (6); the positive electrode of the full-wave rectifier is connected to a common contact (A0) of the relay; a normally open contact (A2) is connected with an alarm control circuit; a live wire of a commercial power supply is connected with a common contact (B0) of the relay; and a normally open contact (B2) is connected with a control circuit of a gas pipe electromagnetic valve (9) and a ventilating fan (10). The gas safety protector gives an alarm, closes the gas pipe electromagnetic valve and starts the ventilating fan simultaneously during the gas leakage, so that the protector effectively reduces the harm caused by the gas leakage to the minimum and realizes the safety protection effect.
Description
Technical field
The present invention relates to a kind of safety guard, be specifically related to a kind of gas safety protector.
Background technology
Along with the development of society, gas engineering especially piped gas has entered family, is mainly used in family's cooking, heats up water, water heater is taken a shower aspect such as have a bath, and people's life requirement has greatly been satisfied in not only convenient, economy but also environmental protection.But, be prone to potential safety hazards such as leakage during use because propane gas is a kind of liquid medium of blasting easily and poisoning.For energy safety operating coal gas resource, in recent years, the relevant relevant report that gas leakage is reported to the police is more, as patented claim 200410094535.6,200820150695.1,200920041494.2 etc., all adopt sensing device that gas leak is monitored, when gas leak occurring, can in time report to the police, and start air exhauster with the coal gas medium extraction of revealing, prevent specific environment such as kitchen, bathroom from the coal gas of high concentration occurring and produce serious consequences such as blast, personnel's poisoning, guaranteed the safe handling of coal gas to a certain extent effectively.But present protection warning device is based on coal gas leakage alarming mostly and extracts environment coal gas medium out and design; can not in time close the coal gas liquid-transport pipe-line; stop coal gas to continue outwards to reveal; still the generation of personnel's gas poisoning even casualty accident can be caused, the effect of protection life safety can not be played better.
Summary of the invention
The objective of the invention is provides a kind of gas safety protector at the deficiencies in the prior art; adopt gas sensor as coal gas medium signal source; duty by relay control alarm, vent fan and gas pipeline solenoid valve; when gas leak occurring, can report to the police, close the gas pipeline solenoid valve simultaneously, open vent fan; avoid gas leak to cause the generation of blast, poisoning even casualty accident effectively, realize the safeguard protection effect.
The technical solution adopted in the present invention:
A kind of gas safety protector, comprise step-down transformer, gas sensor, gas pipeline solenoid valve, vent fan and alarm, the input end of step-down transformer is connected with mains supply, output terminal at step-down transformer is provided with full wave rectifier, line voltage can be carried out carrying out rectification acquisition pulse dc power again after the step-down; The voltage input pin of gas sensor is connected with positive pole, the negative pole of full wave rectifier respectively, an exploring electrode of gas sensor is connected with the positive pole of full wave rectifier, another exploring electrode is connected with the negative pole of full wave rectifier by adjustable resistance, the traveling electrode of adjustable resistance is connected with the base stage of triode through commutation diode, output coal gas medium signal transfers to triode through adjustable resistance, commutation diode when gas sensor detects gas leak; The emitter of triode is connected with the negative pole of full wave rectifier, and collector is connected with the pull-in winding of relay, and pull-in winding work when the collector output current makes the normally closed contact of relay separate the normally opened contact closure; The positive pole of full wave rectifier is connected to the common of relay, and corresponding normally opened contact is connected with the positive pole of alarm control circuit, connects the alarm control circuit and in time report to the police after the normally opened contact closure of relay; The live wire of mains supply is connected with another common of relay, corresponding normally opened contact is connected with the control circuit of gas pipeline solenoid valve, vent fan, the control circuit of gas pipeline solenoid valve, vent fan connects and makes the work of gas pipeline solenoid valve cut out gas piping after the normally opened contact closure of relay, and the coal gas of revealing is discharged in vent fan work.
For easy control circuit, described gas pipeline solenoid valve, vent fan are connected in parallel.
The present invention adopts gas sensor as coal gas medium signal source; duty by relay control alarm, vent fan and gas pipeline solenoid valve; when gas leak occurring, can report to the police, close the gas pipeline solenoid valve simultaneously, open vent fan; realize to report to the police, cut off the gas leak source, to get rid of poisonous coal gas integrated; avoid gas leak to cause the generation of blast, poisoning even casualty accident effectively; the harm that gas leak caused is reduced to minimum, realizes the safeguard protection effect.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Among the figure: 1, step-down transformer; 2, full wave rectifier; 3, gas sensor; 4, adjustable resistance; 5, commutation diode; 6, triode; 7, relay; 8, alarm; 9, gas pipeline solenoid valve; 10, vent fan.
Embodiment
In circuit theory diagrams shown in Figure 1, the present invention includes step-down transformer 1, gas sensor 3, gas pipeline solenoid valve 9, vent fan 10 and alarm 8, the input end of step-down transformer is connected with mains supply, at the output terminal of step-down transformer full wave rectifier 2 is set; The voltage input pin of gas sensor 3 is connected with positive pole, the negative pole of full wave rectifier respectively, an exploring electrode of gas sensor is connected with the positive pole of full wave rectifier, another exploring electrode is connected with the negative pole of full wave rectifier by adjustable resistance 4, the traveling electrode of adjustable resistance is connected with the base stage of triode through commutation diode 5, the emitter of triode is connected with the negative pole of full wave rectifier, and collector is connected with the pull-in winding of relay 7; The positive pole of full wave rectifier is connected to the common A of relay 7
0, corresponding normally opened contact A
2Be connected with the positive pole of alarm 8 control circuits; Another common B of the live wire of mains supply and relay
0Connect corresponding normally opened contact B
2Be connected with the control circuit of the gas pipeline solenoid valve 9 that is connected in parallel, vent fan 10.
Step-down transformer 1 carries out line voltage to carry out rectification acquisition pulse dc power by full wave rectifier 2 after the step-down; output coal gas medium signal when gas sensor 3 detects gas leak; through adjustable resistance 4; commutation diode 5 transfers to triode 6; triode 6 amplifies the back with signal and is exported by collector; the pull-in winding work of relay 7; make normally closed contact separately; the normally opened contact closure; connecting the alarm control circuit in time reports to the police; also connect simultaneously the gas pipeline solenoid valve; the control circuit of vent fan makes the work of gas pipeline solenoid valve cut out gas piping; the coal gas of revealing is discharged in vent fan work; report to the police simultaneously thereby be implemented in when gas leak occurring; close the gas pipeline solenoid valve; open the effect of vent fan; realize reporting to the police; cut off the gas leak source; it is integrated to get rid of poisonous coal gas; the harm that gas leak caused is reduced to minimum, realizes the safeguard protection effect.
Claims (2)
1. gas safety protector, it is characterized in that: comprise step-down transformer (1), gas sensor (3), gas pipeline solenoid valve (9), vent fan (10) and alarm (8), the input end of step-down transformer is connected with mains supply, at the output terminal of step-down transformer full wave rectifier (2) is set; The voltage input pin of gas sensor (3) is connected with positive pole, the negative pole of full wave rectifier respectively, an exploring electrode of gas sensor is connected with the positive pole of full wave rectifier, another exploring electrode is connected with the negative pole of full wave rectifier by adjustable resistance (4), and the traveling electrode of adjustable resistance is connected through the base stage of commutation diode (5) with triode (6); The emitter of triode is connected with the negative pole of full wave rectifier, and collector is connected with the pull-in winding of relay (7); The positive pole of full wave rectifier is connected to the common (A of relay
0), corresponding normally opened contact (A
2) be connected with the positive pole of alarm (8) control circuit; Another common (B of the live wire of mains supply and relay
0) connect corresponding normally opened contact (B
2) be connected with the control circuit of gas pipeline solenoid valve (9), vent fan (10).
2. gas safety protector according to claim 1 is characterized in that: described gas pipeline solenoid valve (9), vent fan (10) are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227412 CN101887625A (en) | 2010-07-09 | 2010-07-09 | Gas safety protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010227412 CN101887625A (en) | 2010-07-09 | 2010-07-09 | Gas safety protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101887625A true CN101887625A (en) | 2010-11-17 |
Family
ID=43073533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010227412 Pending CN101887625A (en) | 2010-07-09 | 2010-07-09 | Gas safety protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101887625A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930694A (en) * | 2012-11-16 | 2013-02-13 | 东华大学 | Gas poisoning preventing system |
| CN108320466A (en) * | 2018-03-26 | 2018-07-24 | 广东先凯智能科技有限公司 | Detection process system in a kind of intelligence control formula room of alarm |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125065U (en) * | 1992-06-20 | 1992-12-16 | 王军 | Initiative closed gas safety device |
| CN2134565Y (en) * | 1992-08-27 | 1993-05-26 | 杨海波 | Automatic close device of acoustooptic alarm for gas leakage |
| CN201374116Y (en) * | 2008-09-27 | 2009-12-30 | 范福仓 | Intelligent gas alarm |
-
2010
- 2010-07-09 CN CN 201010227412 patent/CN101887625A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125065U (en) * | 1992-06-20 | 1992-12-16 | 王军 | Initiative closed gas safety device |
| CN2134565Y (en) * | 1992-08-27 | 1993-05-26 | 杨海波 | Automatic close device of acoustooptic alarm for gas leakage |
| CN201374116Y (en) * | 2008-09-27 | 2009-12-30 | 范福仓 | Intelligent gas alarm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930694A (en) * | 2012-11-16 | 2013-02-13 | 东华大学 | Gas poisoning preventing system |
| CN108320466A (en) * | 2018-03-26 | 2018-07-24 | 广东先凯智能科技有限公司 | Detection process system in a kind of intelligence control formula room of alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101117 |