CN2432585Y - Gas leakage alarm device - Google Patents
Gas leakage alarm device Download PDFInfo
- Publication number
- CN2432585Y CN2432585Y CN 00226584 CN00226584U CN2432585Y CN 2432585 Y CN2432585 Y CN 2432585Y CN 00226584 CN00226584 CN 00226584 CN 00226584 U CN00226584 U CN 00226584U CN 2432585 Y CN2432585 Y CN 2432585Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- output
- gas
- alarm
- integrated package
- 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
Links
Images
Landscapes
- Emergency Alarm Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The utility model relates to a multifunction gas leakage alarm device for gas-electricity conversion, mainly solving the problems of unreliability, instability, etc. existing in various present detection and alarm devices. In the utility model, an outer-heat type gas sensor in the ferric oxide series is used, and a set of multifunction alarm circuits which are matched with gas-electricity conversion elements are designed. The circuits comprise a twofold blocking thermal cleaning circuit, a low pressure difference temperature compensating power supply, an automatic manual detection circuit, and a grading collection control circuit for gas concentration, wherein, the grading collection control circuit for gas concentration carries out grading tests on different gas concentration. As a result, the work of circuits of an exhaust fan, an acoustooptic alarm, and an electromagnetic valve is respectively controlled. The utility model has the advantages of good stability, high reliability, long service life, convenient operation, low performance cost ratio, etc.
Description
The present invention relates to warning device, the gas leakage alarm device of a kind of specifically gas-electricity conversion.
The gas leakage situation in daily family life and commercial production, often occurs, personal safety and national wealth are worked the mischief.Though existing various detection and warning device are many, the problem of aspect such as unreliable, instability is often arranged.For example, the combustible gas that some of selling on the market made with the N-type semiconductor gas sensor, just there is the initial stage wild effect in toxic gas security alarm controller, (NTC) is bigger for negative temperature coefficient, it is inaccurate also can output data to occur when enabling after the power failure again, characteristic drift, misoperation, wild effects such as false alarm.Power off time is long more, and this misoperation phenomenon is serious more.The NTC characteristic also can cause the summer of machine in hot heat, misoperation occurs because environment temperature raises, and has influenced stability and reliability.
The objective of the invention is to avoid the deficiency of above-mentioned prior art, provide a kind of can be in the bigger place of supply voltage offrating, and the good stability that under hot heat hot environment, is difficult for wrong report, detecting device that reliability is high and alarm device.
One of gordian technique that realizes the utility model purpose is to adopt external-heat iron oxide gas sensor, and it two is design one covers and the supporting multi-functional circuit of reporting of gas-electric transition element.This circuit comprises: dual locking heat is circuit clearly, is used to shorten the time of roasting machine, reduces wrong report; Low pressure differential temperature degree offset supply is used for the bigger place of supply voltage offrating and carries out high stable detection prison in the summer of hot heat leaking; Auto-manual detects, and is used for the detection machine duty, has effectively suppressed undue the heating in case wrong report in the machine.Gas concentration sample grading control circuit is used for the hierarchical detection to gas with various concentration.Wherein, output one end of the clear circuit of dual locking heat inputs to low pressure differential temperature degree offset supply, the output signal of another output terminal of output terminal that the output of low pressure differential temperature degree offset supply and auto-manual detect and the clear circuit of two locking heat enters gas concentration sample grading control circuit respectively and is connected, and the output of gas concentration sample grading control circuit is connected with vent fan control, sound and light alarm, solenoid valve control circuit respectively.
The utlity model has good stability, the reliability height, advantage such as the life-span is long, and is easy to use, and the ratio of performance to price is low is applicable to industrial detection, household gas leakage alarm device and safety protection equipment.
Describe structure of the present utility model and principle in detail below in conjunction with paying figure
Fig. 1 is a theory diagram of the present utility model
Fig. 2 is low pressure reduction voltage stabilizing of the present utility model and the clear circuit structure diagram of two locking heat
Fig. 3 is concentration graded control of the present utility model, automatic and manual test circuit structure diagram
With reference to Fig. 2, commutator tube D1-D4 and C1 carry out rectifying and wave-filtering to the 220V power supply in low pressure reduction voltage stabilizing and the clear circuit of two locking heat, triode P1 inductance L diode D5 resistance R 4, R5, R6, stabilivolt W1 and integrated package U3 constitute low pressure differential temperature degree offset supply, select the temperature characterisitic of the lucky energy of the temperature characterisitic complemental air photosensitive elements of stabilivolt W1.Stabilivolt W2, diode D6, integrated package U3, capacitor C 3 and resistance R 7, R8 constitute the one-level exclusive circuit that powers on, and the voltage stabilizing value of W2 is lower than the voltage stabilizing value of W1.Between the charge period of capacitor C 3, U1 is output as low level, the W2 locking W1, make that the stabilized voltage supply output valve is a high pressure, after capacitor C 3 charging finishes, return to the normal output valve of W1 voltage stabilizing.Integrated package U2 and capacitor C 4, resistance R 10 constitute the secondary exclusive circuit, and the secondary blocked level that this circuit is exported is used for blocking vent fan, sound and light alarm, the solenoid valve misoperation at the initial stage of powering on.
With reference to Fig. 3, in concentration graded control, automatically and in the manual test circuit, gas sensor M, integrated package U4, U5 and resistance R 0, R1, R2, R3 constitute the concentration graded acquisition control circuit.Integrated package U6 and diode D8, resistance R 11, R12, R13 constitute fault and detect automatically, and switch S 1 is as the manual detection of vent fan, sound and light alarm, three kinds of functions of solenoid valve.
Integrated package U1-U6 adopts LM339, CD4069 model.
The utlity model has following advantage:
1. the characteristic of gas sensor:
(1) adopting iron is gas sensor, does not add catalyst, does not exist catalyst poisoning to reach thus The inductor decay of activity problem that causes, the alarm life-span is long.
(2) adopt the high-temperature insulation slurry, well-designed micro-tubular fine ceramics heater, Improved mechanical support intensity and heat-insulating property, reducing power consumption, short stable.
(3) be provided with the micro-tubular well heater in the sensitive body periphery of sense gas, increased moisture resistance and anti-tar, good stability, the reliability height has improved the accuracy of reporting to the police, and has also prolonged the life-span of alarm significantly.
(4) iron is the structure that gas sensor shows unique characteristics, and exquisite fastidious with material, allowance is big, and is reasonable in design, and as the contact pin of sensitive element, structured materials such as well heater and lead-in wire all adopt special corrosion-resistant precious metal alloys material, and the gas sensor life-span reaches 10 years.
2. the characteristic of alarm:
(1) adopting the high reliability long-life iron of the outer heater structure of micro-tubular is gas sensor, has improved the stability and the reliability of alarm.
(2) the clear circuit of locking heat has shortened time of roasting machine, has reduced wrong report.
(3) be provided with that the gas sensor open fault automatically detects and manual function detects, not only the machine works state done monitoring but also can prevent reporting by mistake.
(4) adopt compound low pressure differential temperature degree compensating switch voltage stabilizer, can be in the bigger place of supply voltage offrating (spendable supply voltage is 170V-260V) or use in the summer of hot heat.Temperature compensation combination switch voltage stabilizer forms high stability and detects prison and leak alarm device this is the special voltage stabilizer of my institute oneself development.Input impedance is low, and power consumption is low, and hear rate is little, has effectively suppressed undue heating problem in the machine.
(5) comparer that accurately the has much characteristic classification of doing gas with various concentration in working concentration territory is surveyed gas signal input unit and is opened fan with control, and acousto-optic is reported and closed valve and cuts gas, forms multi-functional machine.
Claims (4)
1. multi-functional alarm device of gas leakage comprises that Sensitive Apparatus and warning circuit is characterized in that:
(1) the high reliability long-life iron of the outer heater structure of Sensitive Apparatus employing micro-tubular is element;
(2) warning circuit comprises:
Dual locking heat is circuit clearly, is used to shorten the time of roasting machine, reduces wrong report;
Low pressure differential temperature degree offset supply is used in the bigger place of supply voltage offrating realizing that at summer and the bigger environment of the temperature difference in winter high stability detects prison and leaks:
Auto-manual detects, and is used for the detection machine duty, has effectively suppressed undue heating problem in the machine, in case wrong report;
Gas concentration sample grading control circuit is used for the gas with various concentration graded is tested;
Output one end of the clear circuit of dual locking heat inputs to low pressure differential temperature degree offset supply, the output signal of another output terminal of output terminal that the output of low pressure differential temperature degree offset supply and auto-manual detect and the clear circuit of two locking heat enters gas concentration sample grading control circuit respectively, and the output of gas concentration sample grading control circuit is connected with vent fan control, sound and light alarm, solenoid valve control circuit respectively.
2. alarm device according to claim 1, it is characterized in that, low pressure differential temperature degree offset supply is to be made of triode P1, inductance L, diode D5, resistance R 4, R5, R6, stabilivolt W1 and integrated package U3, selects the temperature characterisitic of the temperature characterisitic of stabilivolt W1 with lucky energy complemental air photosensitive elements.
3. alarm device according to claim 1, it is characterized in that the clear circuit of locking heat is by stabilivolt W2, diode D6, integrated package U3, capacitor C 3 and resistance R 7, R8 constitute the one-level exclusive circuit that powers on, the voltage stabilizing value of W2 is lower than the voltage stabilizing value of W1, and between the charge period of capacitor C 3, U1 is output as low level, the W2 locking W1, make that the stabilized voltage supply output valve is a high pressure, after capacitor C 3 chargings finish, return to the normal output valve of W1 voltage stabilizing; Integrated package U2 and capacitor C 4, resistance R 10 constitute the secondary exclusive circuit, and the secondary blocked level that this circuit is exported is used for blocking vent fan, sound and light alarm, the solenoid valve misoperation at the initial stage of powering on.
4. alarm device according to claim 1 is characterized in that concentration graded control, automatically and in the manual test circuit, and gas sensor M, integrated package U4, U5 and resistance R 0, R1, R2, R3 constitute the concentration graded acquisition control circuit; Integrated package U6 and diode D8, resistance R 11, R12, R13 constitute fault and detect automatically; Switch S 1 is connected between gas sensor M and the secondary blocked level, as the manual detection of vent fan, sound and light alarm, three kinds of functions of solenoid valve; The output of gas sensor M is connected with the negative terminal of integrated package U4, U5 and the anode of integrated package U6 respectively, the output control electric fan open circuit of U4, the output guide sound optical alarm circuit of U5 and delayed start-up electromagnetic valve circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226584 CN2432585Y (en) | 2000-07-07 | 2000-07-07 | Gas leakage alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226584 CN2432585Y (en) | 2000-07-07 | 2000-07-07 | Gas leakage alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2432585Y true CN2432585Y (en) | 2001-05-30 |
Family
ID=33590396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00226584 Expired - Fee Related CN2432585Y (en) | 2000-07-07 | 2000-07-07 | Gas leakage alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2432585Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140879B (en) * | 2010-02-02 | 2013-08-07 | 兰泽华 | Household livable air quality adjusting and control device and method |
| CN105160826A (en) * | 2015-08-31 | 2015-12-16 | 胡国旺 | Combustible gas alarm controller |
| CN105526654A (en) * | 2015-12-19 | 2016-04-27 | 于春明 | Water source heat pump air-conditioner for cooling compressor through well water |
-
2000
- 2000-07-07 CN CN 00226584 patent/CN2432585Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140879B (en) * | 2010-02-02 | 2013-08-07 | 兰泽华 | Household livable air quality adjusting and control device and method |
| CN105160826A (en) * | 2015-08-31 | 2015-12-16 | 胡国旺 | Combustible gas alarm controller |
| CN105526654A (en) * | 2015-12-19 | 2016-04-27 | 于春明 | Water source heat pump air-conditioner for cooling compressor through well water |
| CN105526654B (en) * | 2015-12-19 | 2018-08-14 | 于春明 | It is a kind of using well water to the water source heat pump air-conditioner of cooling compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103293367B (en) | Flame ion current intensity floats the detection method of ground AC power | |
| CN104240449A (en) | Detection alarm | |
| CN2432585Y (en) | Gas leakage alarm device | |
| CN102593790A (en) | Lighting fixture overheating protection circuit and lighting fixture thereof | |
| CN204087439U (en) | A kind of detecting alarm | |
| CN102290788B (en) | Measurement protective device of submersible pump motor | |
| CN201435012Y (en) | Intelligent water level controller | |
| CN102013884B (en) | Non-contact shutdown reminding device for high-power electrical appliance | |
| CN211503272U (en) | Condensing wall-mounted furnace | |
| CN201715720U (en) | Gas water heater with combustible gas or CO alarming and protecting functions | |
| CN105896478A (en) | Series super-capacitor combination protection circuit | |
| CN113848509A (en) | Charging equipment electric leakage self-checking device and self-checking method | |
| CN201153211Y (en) | Phase loss protection unit for intelligent electric actuating mechanism | |
| CN100504315C (en) | Correcting method for solar water heater capacitance water level sensor measuring value | |
| CN2252339Y (en) | Multifunction alarm for household gas | |
| CN201852615U (en) | Alternating current electrolytic liquid level sensor | |
| CN204651887U (en) | A kind of detection of electrical leakage and protective circuit | |
| CN205405821U (en) | Alarming monitoring device is leaked in intelligence gas | |
| CN101603848A (en) | Liquid level and temperature sensor | |
| CN201910779U (en) | Shutdown reminding device for non-contact type high-power electrical equipment | |
| CN209070697U (en) | A kind of detection system of imflammable gas | |
| CN216309980U (en) | Drying furnace combustible gas detection system | |
| CN209386575U (en) | Detection device and water heater | |
| CN214665188U (en) | Intelligent double-control fan type heater | |
| CN202268679U (en) | Measuring and protecting device of submersible pump motor |
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 |