CN201853325U - Combustible gas detection instrument - Google Patents

Combustible gas detection instrument Download PDF

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Publication number
CN201853325U
CN201853325U CN2010206360370U CN201020636037U CN201853325U CN 201853325 U CN201853325 U CN 201853325U CN 2010206360370 U CN2010206360370 U CN 2010206360370U CN 201020636037 U CN201020636037 U CN 201020636037U CN 201853325 U CN201853325 U CN 201853325U
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CN
China
Prior art keywords
processing circuit
signal processing
signal
combustible gas
circuit
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
Application number
CN2010206360370U
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Chinese (zh)
Inventor
王丽波
李兴国
徐雅琴
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Northeast Agricultural University
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Northeast Agricultural University
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Priority to CN2010206360370U priority Critical patent/CN201853325U/en
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Publication of CN201853325U publication Critical patent/CN201853325U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A combustible gas detection instrument relates to gas detection instruments and solves the problem of time and labor waste of an existing combustible gas detector. The combustible gas detection instrument is characterized in that a gas sensor and a signal output end of a signal processing circuit are connected with a signal input end of a controller, and an alarm and control signal output end of the controller is connected with an alarm and control signal input end of a relay circuit. The combustible gas detection instrument is suitable for detection of combustible gas in a biochemistry laboratory.

Description

Combustible gas detector
Technical field
The utility model relates to a kind of gas detecting instrument.
Background technology
In confined spaces such as chemical laboratory, often there is inflammable gas, as rock gas, coal gas, ammonia and sulfuretted hydrogen etc., and owing to the incident of the excessive personnel's poisoning that causes of inflammable gas concentration, fire even blast happens occasionally.Therefore it is very necessary confined spaces such as chemical laboratory being carried out the inflammable gas detection.The device that some integrated multiple gases sensors are arranged in the market, but these gas detectors are used in the commercial production more, its integrated equipment is more, detection speed is slower, and volume is relatively large, complicated operation, detection is wasted time and energy, and is not suitable for the inflammable gas detection of confined spaces such as chemical laboratory.
The utility model content
The utility model is the problem that wastes time and energy for the detection that solves existing combustible gas detector, thereby a kind of combustible gas detector is provided.
Combustible gas detector, it comprises gas sensor and signal processing circuit, controller and warning and relay circuit, the signal output part of described gas sensor and signal processing circuit is connected with the signal input part of controller, and the warning of controller and control signal output ends are connected with the warning and the signal input end of warning and relay circuit.
The utility model is realized the real-time monitoring of chemical laboratory to air quality, safe and reliable, by changing different gas sensors, can detect multiple harmful gas, exceed standard as harmful gas, then with the form of alarm as detection to inflammable gass such as rock gas, coal gas, ammonia and sulfuretted hydrogen, of the present utility model simple in structure, volume is less, and it is time saving and energy saving to detect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment one, this embodiment is described in conjunction with Fig. 1, combustible gas detector, it comprises gas sensor and signal processing circuit 1, controller 2 and warning and relay circuit 3, the signal output part of described gas sensor and signal processing circuit 1 is connected with the signal input part of controller 2, and the warning of controller 3 and control signal output ends are connected with the warning and the signal input end of warning and relay circuit 3.
In the present embodiment, gas sensor and signal processing circuit 1 are used for gas concentration signal is converted into voltage signal, and carry out that signal amplifies, Filtering Processing, and being transported to controller 2, controller 2 is used for the signal of gathering is calculated and manages, and simultaneously signal is monitored.Warning and relay circuit 3 are used to provide sound and light alarm and ON-OFF control circuit.Gas sensor in affiliated sensor and the signal processing circuit 1 can be replaced by variety classes according to measured different inflammable gass.
The course of work of the described combustible gas detector of present embodiment is: after gas sensor detects gas signal, change it into light current and press signal, after the signal processing circuit amplification filtering, be sent in the controller 2, the synchronous signal treatment circuit carries out signal relatively with signal circuit initialization system dangerous values, if surpass to adopt urgent interrupt mode notification controller 2, report to the police in the fastest mode and handle with the assurance system; If the value behind the detection signal is a normal value, then system carries out record, so that analyze and inquire about.
The difference of embodiment two, this embodiment and embodiment one described combustible gas detector is, it also comprises and showing and remote control circuit 4, and the demonstration of described demonstration and remote control circuit 4 and remote signal input or output the demonstration of end and controller 2 and remote signal is exported or input end is connected.
Demonstration and remote control circuit 4 that present embodiment increases are used to provide the interface of controlling with operating personnel.
The difference of embodiment three, this embodiment and embodiment one described combustible gas detector is, it also comprises measuring-signal output circuit 5, and the measuring-signal input end of described measuring-signal output circuit 5 is connected with the measuring-signal output terminal of controller 2.
The measuring-signal output circuit 5 that present embodiment increases is measured the current output signal that the conversion of signals that obtains becomes 4~20mA of standard measuring instruments with gas sensor and signal processing circuit 1, can be for miscellaneous equipment collection and use, can gather in real time, store and manage measurement data by this interface in actual applications, be convenient to the inquiry of historical data.
The difference of embodiment four, this embodiment and embodiment one described combustible gas detector is, it also comprises direct current regulation circuit 6, and the signal output part of described direct current regulation circuit 6 is connected with the signal input part of gas sensor and signal processing circuit 1.
The direct current regulation circuit 6 that present embodiment increases is used to sensor that stable voltage is provided, and assurance gas sensor 1 is exported reliably measured value accurately, improves measuring accuracy.
The difference of embodiment five, this embodiment and embodiment one, two, three or four described combustible gas detectors is that gas sensor and signal processing circuit 1 are rock gas gas sensor and signal processing circuit.
The difference of embodiment six, this embodiment and embodiment one, two, three or four described combustible gas detectors is that gas sensor and signal processing circuit 1 are coal gas gas sensor and signal processing circuit.
The difference of embodiment seven, this embodiment and embodiment one, two, three or four described combustible gas detectors is that gas sensor and signal processing circuit 1 are ammonia gas sensor and signal processing circuit.
The difference of embodiment eight, this embodiment and embodiment one, two, three or four described combustible gas detectors is that gas sensor and signal processing circuit 1 are these hydrogen sulfide gas sensor and signal processing circuit.
Combustible gas detector described in the utility model is not limited to the structure of above-mentioned each embodiment, can also be the reasonable combination of the technical characterictic put down in writing of each embodiment.
The utility model has adopted following hardware and software technology:
(1), filtering technique: adopted the mode of hardware filtering technology and software filtering suite to carry out filtering, realized the stable and accurate of Signal Processing.
(2), Low-power Technology: the low-power consumption processing mode of performance controller, adopt to interrupt open and mode such as delayed sleep, intellectualized management system greatly reduces the electrical loss of system.
The utility model has been realized the real-time monitoring to airtight IAQ (indoor air quality) such as chemical laboratories, safe and reliable, by changing different sensors, can detect multiple harmful gas, to having very big advantage in the monitoring of gases such as rock gas, coal gas, ammonia and sulfuretted hydrogen and the data acquisition, and can monitor confined chamber inner control quality according to the harmful gas threshold values of setting, can report to the police and the processing of ventilating the intellectuality and the robotization of the air administrative in the confined spaces such as raising chemical laboratory automatically according to air quality.

Claims (8)

1. combustible gas detector, it is characterized in that: it comprises gas sensor and signal processing circuit (1), controller (2) and warning and relay circuit (3), the signal output part of described gas sensor and signal processing circuit (1) is connected with the signal input part of controller (2), and the warning of controller (3) and control signal output ends are connected with the warning and the signal input end of warning and relay circuit (3).
2. combustible gas detector according to claim 1, it is characterized in that it also comprises shows and remote control circuit (4), and the demonstration of described demonstration and remote control circuit (4) and remote signal input or output the demonstration of end and controller (2) and remote signal is exported or input end is connected.
3. combustible gas detector according to claim 2 is characterized in that it also comprises measuring-signal output circuit (5), and the current signal input end of described measuring-signal output circuit (5) is connected with the current signal output end of controller (2).
4. combustible gas detector according to claim 3 is characterized in that it also comprises direct current regulation circuit (6), and the signal output part of described direct current regulation circuit (6) is connected with the signal input part of gas sensor and signal processing circuit (1).
5. according to claim 1,2,3 or 4 described combustible gas detectors, it is characterized in that gas sensor and signal processing circuit (1) are rock gas gas sensor and signal processing circuit.
6. according to claim 1,2,3 or 4 described combustible gas detectors, it is characterized in that gas sensor and signal processing circuit (1) are coal gas gas sensor and signal processing circuit.
7. according to claim 1,2,3 or 4 described combustible gas detectors, it is characterized in that gas sensor and signal processing circuit (1) are ammonia gas sensor and signal processing circuit.
8. according to claim 1,2,3 or 4 described combustible gas detectors, it is characterized in that gas sensor and signal processing circuit (1) are these hydrogen sulfide gas sensor and signal processing circuit.
CN2010206360370U 2010-12-01 2010-12-01 Combustible gas detection instrument Expired - Fee Related CN201853325U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206360370U CN201853325U (en) 2010-12-01 2010-12-01 Combustible gas detection instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206360370U CN201853325U (en) 2010-12-01 2010-12-01 Combustible gas detection instrument

Publications (1)

Publication Number Publication Date
CN201853325U true CN201853325U (en) 2011-06-01

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102246717A (en) * 2011-06-10 2011-11-23 无锡睿思凯科技有限公司 Alarming constant-temperature fish tank for measuring and predicting gas content of room
CN102507847A (en) * 2011-10-10 2012-06-20 李敏 Full-intelligent voice digital independent combustible gas detector
CN105259327A (en) * 2015-09-23 2016-01-20 浙江省安全生产科学研究院 Combustible gas detector and detection method thereof
CN111466635A (en) * 2020-04-20 2020-07-31 重庆第二师范学院 Motion-preventing mask

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102246717A (en) * 2011-06-10 2011-11-23 无锡睿思凯科技有限公司 Alarming constant-temperature fish tank for measuring and predicting gas content of room
CN102507847A (en) * 2011-10-10 2012-06-20 李敏 Full-intelligent voice digital independent combustible gas detector
CN105259327A (en) * 2015-09-23 2016-01-20 浙江省安全生产科学研究院 Combustible gas detector and detection method thereof
CN111466635A (en) * 2020-04-20 2020-07-31 重庆第二师范学院 Motion-preventing mask

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C17 Cessation of patent right
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Granted publication date: 20110601

Termination date: 20121201