JP2014066530A - Intermittently-driven combustible gas detector - Google Patents
Intermittently-driven combustible gas detector Download PDFInfo
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Abstract
Description
本発明は、可燃性ガスをセンサ間欠駆動して検出する間欠駆動型可燃性ガス検出装置に関する。 The present invention relates to an intermittent drive type combustible gas detection device that detects a combustible gas by intermittently driving a sensor.
可搬型ガス検出装置は、ヒータに酸化触媒層を形成した接触燃焼型ガスセンサや、ヒータに非酸化層が形成された熱線からなる熱伝導型ガスセンサが使用され、電源に電池が使用されているため、消費電力を節減するため、特許文献１に見られるように所定の周期で、ガスセンサがガスに感応するに足る一定間通電するという間欠駆動方式が採用されている。
The portable gas detection device uses a catalytic combustion type gas sensor in which an oxidation catalyst layer is formed on a heater and a heat conduction type gas sensor composed of a heat ray in which a non-oxidation layer is formed on a heater, and a battery is used as a power source. In order to save power consumption, an intermittent drive system is adopted in which a gas sensor is energized for a certain period of time enough to be sensitive to gas, as seen in
一方、装置の完全性を確認するため、始業点検時に校正作業が行われる。校正は装置、とりわけセンサ周囲が定格状態に到達する必要があるが、しかし、間欠駆動であるため、通常３分程度の時間を必要とし、始業時の校正作業にムダ時間が生じるという問題がある。
本発明はこのような問題に鑑みてなされたものであって、その目的とするところは、始業点検時の校正作業に要する時間を短縮できる間欠駆動型可燃性ガス検出装置を提供することである。
On the other hand, in order to confirm the integrity of the device, calibration work is performed at the start of business inspection. Calibration requires that the device, especially the surroundings of the sensor, reach the rated state. However, since it is intermittently driven, it usually takes about 3 minutes, and there is a problem that waste time is required for calibration work at the start of work. .
The present invention has been made in view of such problems, and an object of the present invention is to provide an intermittently driven combustible gas detection device capable of shortening the time required for calibration work at the time of start-up inspection. .
このような課題を達成するために本発明においては、ガスセンサを備えた検出部を間欠的に電力を供給して駆動する可燃性ガス検出装置において、少なくとも前記検出部を所定の周期で間欠的に駆動させる第一のモードと、装置が正常に作動するのに必要な状態に暖機できるに足る所定時間連続的に作動させる第二のモードとを切替える切替手段を備える。 In order to achieve such a problem, in the present invention, in a combustible gas detection device that drives a detection unit equipped with a gas sensor by supplying power intermittently, at least the detection unit is intermittently provided at a predetermined cycle. There is provided switching means for switching between a first mode to be driven and a second mode to be continuously operated for a predetermined time sufficient to warm up to a state necessary for the device to normally operate.
本発明によれば、始業点検時に連続通電するため、間欠駆動による熱の放散を抑制して暖機時間を短縮できる。 According to the present invention, since continuous energization is performed at the start of work inspection, heat dissipation due to intermittent drive can be suppressed and warm-up time can be shortened.
そこで以下に本発明の詳細を図示した実施例に基づいて説明する。
図１は、本発明の可燃性ガス検出装置の一実施例を示すものであって、ガス検出部１は、熱伝導型ガス検知センサもしくは接触燃焼型ガスセンサＳと抵抗Ｒとを直列接続して構成され、その電力供給端子には、電源２となる電池の電力が切替手段３により周期、及びパルス幅が設定されるパルス発生手段４からの電力が供給され、また検出端子には測定手段５が接続されている。
Therefore, details of the present invention will be described below based on the illustrated embodiment.
FIG. 1 shows an embodiment of a combustible gas detection device according to the present invention. A
切替手段３は、パルス発生手段４から時間３０秒程度の期間、つまりガスセンサＳ及びその周辺環境がガスを検出するのに適した温度になる程度の時間だけ連続通電する始業点検時の校正作業モードと、間欠駆動して電力の消費を抑えつつガスを検出できる時間間隔、例えば８秒毎に時間幅１秒のパルスを一定の周期で出力させる通常モードとを実現するための電力供給形態をパルス発生手段４に指令するものである。 The switching means 3 is a calibration work mode at the time of the start-up inspection in which the energization is continuously performed for a period of about 30 seconds from the pulse generation means 4, that is, the gas sensor S and the surrounding environment at a temperature suitable for detecting gas. And a power supply mode for realizing a normal mode in which a pulse having a time width of 1 second is output at a constant cycle every 8 seconds, for example, a time interval in which gas can be detected while suppressing power consumption by intermittent driving It instructs the generation means 4.
測定手段５は、データ記憶手段６に格納されている検量線データに基づいて検出部１からの信号をガスの濃度を換算して出力するように構成されている。
The measuring means 5 is configured to convert the signal from the
この実施例において切替手段３により構成作業モードを選択すると、パルス発生手段４から時間＊＊＊秒程度の期間、つまりガスセンサ、及びその周辺環境がガスを検出するのに適した温度になる程度の時間の連続通電が行われる。
これにより、間欠駆動する場合に比較して早急に暖機が可能となり、この状態で標準ガスを注入して装置の校正を行う。
In this embodiment, when the configuration work mode is selected by the switching means 3, a period of time *** seconds from the pulse generating means 4, that is, the gas sensor and its surrounding environment are at a temperature suitable for detecting gas. Continuous energization of time is performed.
As a result, it is possible to warm up more quickly than in the case of intermittent driving. In this state, the standard gas is injected to calibrate the apparatus.
装置が正常に動作することが確認された場合には、通常モードを選択すると、パルス発生手段４からパルス状の電力がガス検出部１に供給されて電力消費を抑制しつつガスの濃度が測定される。
When it is confirmed that the apparatus operates normally, if the normal mode is selected, pulsed power is supplied from the pulse generating means 4 to the
なお、上述の実施例においては始業点検時の校正を、初期駆動用の長時間パルスによる測定値で行なっているが、長時間パルスによる動作後に通常の間欠駆動による測定値で行なっても同様の効果を奏することは明らかである。 In the above-described embodiment, the calibration at the start of work inspection is performed with the measured value by the long-time pulse for the initial drive, but the same thing can be done by the measured value by the normal intermittent drive after the operation by the long-time pulse. It is clear that there is an effect.
１ ガス検出部 ２ 電源 ３ 切替手段 ４ パルス発生手段 ５ 測定手段 ６ データ記憶手段 Ｓ ガスセンサ Ｒ 抵抗
DESCRIPTION OF
Claims (1)
少なくとも前記検出部を所定の周期で間欠的に駆動させる第一のモードと、装置が正常に作動するのに必要な状態に暖機できるに足る所定時間連続的に作動させる第二のモードとを切替える切替手段を備えた間欠駆動型可燃性ガス検出装置。 In the combustible gas detection device that drives the detection unit provided with the gas sensor by intermittently supplying electric power,
A first mode in which at least the detection unit is intermittently driven in a predetermined cycle; and a second mode in which the detection unit is continuously operated for a predetermined time sufficient to warm up to a state necessary for the device to operate normally. An intermittent drive type combustible gas detection device provided with a switching means for switching.
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| JP2012210255A JP6045099B2 (en) | 2012-09-25 | 2012-09-25 | Intermittent drive type combustible gas detector |
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| JP2012210255A JP6045099B2 (en) | 2012-09-25 | 2012-09-25 | Intermittent drive type combustible gas detector |
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| JP2014066530A true JP2014066530A (en) | 2014-04-17 |
| JP6045099B2 JP6045099B2 (en) | 2016-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017045225A (en) * | 2015-08-26 | 2017-03-02 | 矢崎エナジーシステム株式会社 | Gas alarm unit |
| CN109496270A (en) * | 2017-07-11 | 2019-03-19 | 三菱电机株式会社 | Processing unit |
| CN109556646A (en) * | 2018-11-28 | 2019-04-02 | 珠海格力电器股份有限公司 | A kind of gas sensor calibration method, device, storage medium and terminal |
| US20200103387A1 (en) * | 2018-09-28 | 2020-04-02 | Msa Technology, Llc | Determination of sensor operational status via sensor interrogation |
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| JPH08278279A (en) * | 1994-08-05 | 1996-10-22 | Nippondenso Co Ltd | Heater controller of oxygen sensor |
| JP2008139092A (en) * | 2006-11-30 | 2008-06-19 | Figaro Eng Inc | On-vehicle hydrogen detector |
| JP2009244236A (en) * | 2008-04-01 | 2009-10-22 | Hanshin Electric Co Ltd | Smell detecting device |
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- 2012-09-25 JP JP2012210255A patent/JP6045099B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08278279A (en) * | 1994-08-05 | 1996-10-22 | Nippondenso Co Ltd | Heater controller of oxygen sensor |
| JP2008139092A (en) * | 2006-11-30 | 2008-06-19 | Figaro Eng Inc | On-vehicle hydrogen detector |
| JP2009244236A (en) * | 2008-04-01 | 2009-10-22 | Hanshin Electric Co Ltd | Smell detecting device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017045225A (en) * | 2015-08-26 | 2017-03-02 | 矢崎エナジーシステム株式会社 | Gas alarm unit |
| CN109496270A (en) * | 2017-07-11 | 2019-03-19 | 三菱电机株式会社 | Processing unit |
| CN109496270B (en) * | 2017-07-11 | 2020-03-31 | 三菱电机株式会社 | Processing apparatus |
| US20200103387A1 (en) * | 2018-09-28 | 2020-04-02 | Msa Technology, Llc | Determination of sensor operational status via sensor interrogation |
| US11680933B2 (en) * | 2018-09-28 | 2023-06-20 | Msa Technology, Llc | Determination of sensor operational status via sensor interrogation |
| CN109556646A (en) * | 2018-11-28 | 2019-04-02 | 珠海格力电器股份有限公司 | A kind of gas sensor calibration method, device, storage medium and terminal |
| CN109556646B (en) * | 2018-11-28 | 2020-01-07 | 珠海格力电器股份有限公司 | Gas sensor calibration method and device, storage medium and terminal |
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