JPS5923241A - Gas alarming device - Google Patents
Gas alarming deviceInfo
- Publication number
- JPS5923241A JPS5923241A JP13279682A JP13279682A JPS5923241A JP S5923241 A JPS5923241 A JP S5923241A JP 13279682 A JP13279682 A JP 13279682A JP 13279682 A JP13279682 A JP 13279682A JP S5923241 A JPS5923241 A JP S5923241A
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- concentration
- gas concentration
- circuit
- gas
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、炭鉱坑内等で使用するガス警報装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas alarm device used in a coal mine or the like.
従来、例えば炭鉱坑内で使用されるガス警報装置には、
携帯式、定置式、集中監視式など用途に応じて種々の形
式のものが使用されている。ところが、集中監視式のよ
うに記録装置に接続された形式のものを除いて、ガスが
所定値を越えた時点で、例えば可視、可聴、電源連断等
の動作のみでガス濃度の状態を知り得る形式のものでは
、ガスがとのよりな傾向で増加し、または減少したのか
を捕捉することができず、それが管理上の盲点となって
いた。Conventionally, gas alarm devices used in coal mines, for example, have
Various types are used depending on the purpose, such as portable type, stationary type, and centralized monitoring type. However, with the exception of centralized monitoring systems that are connected to a recording device, when the gas exceeds a predetermined value, the state of the gas concentration can be known only through visual, audible, power disconnection, etc. The data obtained in this way cannot determine whether the gas is increasing or decreasing, and this has become a management blind spot.
また、坑内では、ガス警報装置がガスの増加によって正
常な動作をした場合でも、炭鉱の特殊条件から誤動作と
見なされる場合がしばしば生ずる。Further, in underground mines, even if the gas alarm device operates normally due to an increase in gas, it is often deemed to have malfunctioned due to the special conditions of the coal mine.
即ち、採炭切羽刊近にあっては、ガスが一様に拡散しな
いで局部的に所定値以上の濃度でブロンク状となって通
過するため、たまたまそのガスをガス警報装置が検知し
て警報を発することがあるが、確認のためガス警報装置
近傍のガス濃度をガス検定器で検定したときには、すで
にガス濃度が減少して所定値以下となっており、果して
警報発信がガスの増加によるものか否かの判定がつけら
れない場合等である。In other words, near the coal mining face, the gas does not diffuse uniformly and passes through locally in the form of bronches with a concentration higher than a predetermined value, so the gas alarm device happens to detect this gas and issue an alarm. However, when the gas concentration near the gas alarm device was verified using a gas tester to confirm, the gas concentration had already decreased and was below the specified value, making it difficult to determine if the alarm was due to an increase in gas. This is the case, for example, when it is not possible to determine whether or not the item is being used.
本発明は、上述のように炭鉱坑内等におけるガス管理及
び保安確保を容易ならしめるガス警報装置を提供しよう
とするもので、警報回路による警報発信以後のガス濃度
を記憶素子に記憶させ、それを必要に応じて表示装置に
再生表示できるようにすると共に、ガス濃度が予め設定
された警報濃度以下となって」二記警報回路を警報発信
状態から解除１〜だときにのみ、上記記憶子に記憶され
た情報を消去できるようにしたことを特徴とするもので
ある。The present invention aims to provide a gas alarm device that facilitates gas management and security in a coal mine, etc., as described above, by storing the gas concentration after an alarm is issued by an alarm circuit in a memory element, and storing the gas concentration after the alarm is issued by the alarm circuit. In addition to making it possible to reproduce and display the information on the display device as necessary, the above-mentioned memory is set only when the gas concentration is below the preset alarm concentration and the alarm circuit is released from the alarm issuing state. The feature is that the stored information can be erased.
以下、本発明の実施例を図面に基づいて詳細に照明ず、
Ｓ。Hereinafter, embodiments of the present invention will not be explained in detail based on the drawings.
S.
第１図において、１はガス濃度を検出してそれ−を電気
信号に変換するガス濃度検出器、２Ｖｉ該ガ１
器２を介してガス濃度検出器１から送られてくるガス濃
度に関する情報を記憶する記憶素子、４は該記憶素子３
に記憶された情報を再生表示するだめの表示装置分、５
は王妃記憶素子３を制御する制御回路であって、この制
御回路５によって、上記記憶素子３に対し、ガス濃度検
出器１からのガス濃度情報を記憶させるための記憶指令
と、記憶された情報を表示装置４によって再生表示させ
るだめの再生表示指令と、記憶された情報を消去させる
ための消去指令とを出力するようにし、さらに、上記各
指令を出力すべく制御回路５をコントロールする警報回
路６及び再生表示操作手段７をそれぞれ設けている。In FIG. 1, 1 is a gas concentration detector that detects gas concentration and converts it into an electrical signal; A memory element for storing data, 4 is the memory element 3
5 display devices for reproducing and displaying information stored in
is a control circuit that controls the queen memory element 3, and this control circuit 5 issues a memory command for storing gas concentration information from the gas concentration detector 1 to the memory element 3, and the stored information. an alarm circuit that outputs a reproduction display command for reproducing and displaying the information on the display device 4 and an erasing command for erasing the stored information, and further controls the control circuit 5 to output each of the above-mentioned commands. 6 and reproduction display operation means 7 are provided respectively.
上記警報回路６け、ガス濃度が予め設定された警報濃度
以上になった場合に自動的に閉鎖せしめられるスイッチ
素子８．９とリレー】０とを直列に義絖し、それらを電
源１】に接続すると共に、各ス（ノチ素子８，９に、リ
レー１０の常時開接点１０ （Ｌと常時閉の押釦スイッ
チ１２とをそれぞれ並列に接続したもので、上記リレー
１０の接点１０力及び１０ Ｃによって、それぞれ制御
回路５及び坑内配電系統の電源遮断装置１３を開閉する
ようにしている。In the above alarm circuit 6, switch elements 8 and 9 which are automatically closed when the gas concentration exceeds a preset alarm concentration are connected in series with the relay 0 and connected to the power source 1. At the same time, the normally open contacts 10 (L) of the relay 10 and the normally closed push button switch 12 are connected in parallel to each of the contact elements 8 and 9. The control circuit 5 and the power cutoff device 13 of the underground power distribution system are opened and closed, respectively.
また、再生表示操作手段７Ｖｉ、押釦スイッチにより構
成され、それを押圧することによって制御回路５を再生
表示指令の出力状態とするものである。Further, the playback display operation means 7Vi is constituted by a push button switch, and by pressing the button, the control circuit 5 is brought into a state where a playback display command is output.
なお、１４け記憶素子３の保持用電源である。Note that this is a power supply for holding the 14 memory elements 3.
上記構成を有するガス警報装置において、ガス濃度検出
器Ｉがガスを検知すると、ガス濃度に応じたアナログ信
号がそれから出力され、この信号ｈ’ Ａ／’１）変換
器２でデジタル信号に変換されて記憶素子３に入力され
、表示装置４で逐次表示される。In the gas alarm device having the above configuration, when the gas concentration detector I detects gas, an analog signal corresponding to the gas concentration is outputted, and this signal h'A/'1) is converted into a digital signal by the converter 2. are inputted into the memory element 3 and sequentially displayed on the display device 4.
い捷、上記ガス濃度が予め設定された警報濃度以下持す
ると同時に、電源遮断装置１３が作動し、さらに制御回
路５のアース側が接点１０ Ａによって開放される。こ
れによって、上記制御回路５は予め設定されたインタバ
ルで発振し、アドレスカウンタを介して、記憶素子３に
、デジタル信号として入力されるガス濃度に応じた（Ｗ
報の記憶指令を出力する。この記憶指令により、記憶素
子３においては、記憶番地の切替えによってガス濃度情
報が連続的または間欠的に最終番地まで記憶され、同時
にその情報が表示装置４によって逐次表示される。At the same time, when the gas concentration remains below the preset alarm concentration, the power cutoff device 13 is activated and the ground side of the control circuit 5 is opened by the contact 10A. As a result, the control circuit 5 oscillates at preset intervals, and the control circuit 5 oscillates at predetermined intervals, and inputs the data to the storage element 3 as a digital signal via the address counter (W
Outputs a command to store information. In accordance with this storage command, gas concentration information is stored in the storage element 3 continuously or intermittently up to the final address by switching the storage address, and at the same time, the information is sequentially displayed on the display device 4.
−ここで、再生表示操作手段７を押圧すると、割れ、同
時に、警報発信以後の記憶された情報が表示装置４に順
次再生表示される。-Here, when the playback display operation means 7 is pressed, it breaks and at the same time, the information stored after the alarm is issued is sequentially played back and displayed on the display device 4.
ガス濃度が警報濃度以下に低下すると、ス・イツチ素子
８，９が開放するだめ、押釦スイッチ１２を押ｎ＝する
ことによって警報回路６を図示の非作動状態に復帰させ
ることができ、これによつ１、電源遮断装置１３が非作
動状態に復帰すると同時に、制御回路５のアース側が接
点１０ Ａによって短絡される。従って、この制御回路
５から記憶素子３に消去指令が出力され、これ１で記憶
されていた情報が全て消去される。When the gas concentration falls below the alarm concentration, the switch elements 8 and 9 open, and by pressing the push button switch 12, the alarm circuit 6 can be returned to the non-operating state shown in the figure. First, at the same time as the power cutoff device 13 returns to the non-operating state, the ground side of the control circuit 5 is short-circuited by the contact 10A. Therefore, an erase command is output from the control circuit 5 to the memory element 3, and all the information stored in the memory element 1 is erased.
なお、上記ガス警報装置は、濃度検出器を温度、湿度、
振動、歪、風等の検出器と交換し、それらに関する警報
装置として転用することもできる。In addition, the above gas alarm device uses the concentration detector as temperature, humidity,
It can also be used as a warning device for vibration, distortion, wind, etc. by replacing it with a detector.
以上に詳述したように、本発明のガス警報装置によれば
、警報回路による警報発信以後のガス濃度を記憶素子に
記憶はせ、それを必要に応じて再生表示できるようにし
だので、警報発信以後のガス濃度の変化や分布状況を逐
次把握することかで遣ことができ、また、ガル濃度が予
め設定された警報濃度以下にならなければ記憶されたｆ
ｆｆＮの消去ができないようになっているため、誤操作
によって記憶情報が損われるようなことがない。As detailed above, according to the gas alarm device of the present invention, the gas concentration after the alarm is issued by the alarm circuit is stored in the memory element, and can be reproduced and displayed as necessary. It can be used by sequentially understanding the changes in gas concentration and distribution status after the transmission, and if the gas concentration does not fall below the preset alarm concentration, the memorized f
Since ffN cannot be erased, stored information will not be damaged due to erroneous operation.
第１図は本発明に係るガス警報装置の構成図である。
工・・・ガス濃度検出器、 ３・・・記憶素子、４・
・・表示装置、 ５・・・制御回路、６・・・
警報回路、
７・・・再生表示操作スイッチ。
区
マー−
昧FIG. 1 is a block diagram of a gas alarm device according to the present invention. Engineering: Gas concentration detector, 3: Memory element, 4:
...Display device, 5...Control circuit, 6...
Alarm circuit, 7... Reproduction display operation switch. ward mark
Claims (1)
検出手段と、 上記ガス濃度検出手段からのガス濃度に関する情報を記
憶する記憶素子と、 上記記憶素子が記憶した情報を再生表示するた→めの表
示装置と、 憶された情報を上記表示装置によって再生表示させるだ
めの再生表示指令と、記憶された情報を消去させるだめ
の消去指令とを出力する制御回路と、ガス＃度が所定値
に達したときに自動的に作動して警報発信状態に自己保
持すると共に、ガス濃度が所定値以下に低下したときに
自己保持解除操作によって非作動状態に復帰し、それに
よって、上記制御回路を、記憶素子に対する記憶指令の
出力状態または消去指令の出力状態に切換え動作させる
警報回路と、 上記制御回路を記憶素子への再生表示指令の出力状態に
制御する再生表示操作手段と、を備えたことを特徴とす
るガス警報装置。[Scope of Claims] Gas concentration detection means for detecting gas concentration and converting it into an electrical signal; a storage element for storing information regarding the gas concentration from the gas concentration detection means; a display device for reproducing and displaying information; a control circuit that outputs a reproducing display command for reproducing and displaying stored information on the display device; and an erasing command for erasing stored information; , when the gas concentration reaches a predetermined value, it automatically operates and self-maintains the alarm issuing state, and when the gas concentration falls below the predetermined value, it returns to the non-operating state by a self-hold release operation, an alarm circuit that thereby switches the control circuit to an output state of a storage command or an output state of an erase command to the storage element; and a reproduction display operation that controls the control circuit to output a reproduction display command to the storage element. A gas alarm device comprising: means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13279682A JPS5923241A (en) | 1982-07-29 | 1982-07-29 | Gas alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13279682A JPS5923241A (en) | 1982-07-29 | 1982-07-29 | Gas alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5923241A true JPS5923241A (en) | 1984-02-06 |
Family
ID=15089758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13279682A Pending JPS5923241A (en) | 1982-07-29 | 1982-07-29 | Gas alarming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114999A (en) * | 1987-10-29 | 1989-05-08 | Mitsubishi Electric Corp | Abnormality detector |
| WO2010012158A1 (en) * | 2008-07-30 | 2010-02-04 | Besco (China) Company Limited | Detection apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132796A (en) * | 1981-02-05 | 1982-08-17 | Toshiba Corp | Controlling device for ac motor |
-
1982
- 1982-07-29 JP JP13279682A patent/JPS5923241A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57132796A (en) * | 1981-02-05 | 1982-08-17 | Toshiba Corp | Controlling device for ac motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114999A (en) * | 1987-10-29 | 1989-05-08 | Mitsubishi Electric Corp | Abnormality detector |
| WO2010012158A1 (en) * | 2008-07-30 | 2010-02-04 | Besco (China) Company Limited | Detection apparatus |
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