JPH03181822A - Self-analyzing apparatus of electrode-type level meter - Google Patents
Self-analyzing apparatus of electrode-type level meterInfo
- Publication number
- JPH03181822A JPH03181822A JP1322023A JP32202389A JPH03181822A JP H03181822 A JPH03181822 A JP H03181822A JP 1322023 A JP1322023 A JP 1322023A JP 32202389 A JP32202389 A JP 32202389A JP H03181822 A JPH03181822 A JP H03181822A
- Authority
- JP
- Japan
- Prior art keywords
- group
- electrode
- contacts
- double
- relays
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000004092 self-diagnosis Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 230000007257 malfunction Effects 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、例えばボイラ、タンク等の内部の水面（水量
）を検出するために設備されている電極式水面計の自己
診断装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a self-diagnosis device for an electrode-type water level gauge installed to detect the water level (water level) inside a boiler, tank, etc., for example. be.
（従来の技術）
例えばタンク等の内部に入れられている水面を検出する
ための手段として、そのタンクの側壁を貫通する多数の
電極プラグをタンクの上下方向に沿って隔設して、それ
ら電極プラグのいずれかが水相に位置されているかまた
は気相に位置されているかによって変化する電気的信号
によりタンク内の水面を検出することができる電極式水
面計が知られている。一般的にこの電極式水面計の構成
は、第３図に示す如くであって、１はタンク、２はその
タンク１内に通じてタンク１内容水を導入する垂直方向
の水管であって、この水管２の下部から上下方向に向っ
てその水管２を貫通する多数本の電極プラグ３、〜３ｎ
が隔設状態に配置固定されている。(Prior Art) For example, as a means for detecting the water level contained inside a tank, etc., a large number of electrode plugs penetrating the side wall of the tank are spaced apart along the vertical direction of the tank. Electrode type water level gauges are known that can detect the water level in a tank using an electrical signal that changes depending on whether one of the plugs is located in the water phase or in the gas phase. Generally, the configuration of this electrode type water level gauge is as shown in FIG. 3, where 1 is a tank, 2 is a vertical water pipe that leads into the tank 1 and introduces the water contained in the tank. A large number of electrode plugs 3 to 3n pass through the water pipe 2 in the vertical direction from the bottom of the water pipe 2.
are arranged and fixed in a separate position.
そしてその水管２内の水面４が図示の位置にあるときは
、上から６段目の電極プラグまでは水中に接触されてい
ないので制御回路５ｓ、５ｎに作用されるインピーダン
ス変化が生じないため、リレー６Ｓ〜６ｎは同一の接触
状態となって、表示灯７Ｓ〜７ｏは例えば赤色表示とな
る。また水中に接触されている７段目の電極プラグ３４
以下では制御回路５３へ人力されるインピーダンス変化
が生じるため、これによりリレー６４以下は切換えられ
、その結果表示灯７４以下が例えば緑色に変色し表示灯
７８．７４との間に水面が位置されていることが表示さ
れるものである。When the water surface 4 in the water pipe 2 is at the position shown in the figure, the electrode plugs up to the sixth stage from the top are not in contact with the water, so no impedance change is caused by the control circuits 5s and 5n. The relays 6S to 6n are in the same contact state, and the indicator lights 7S to 7o are displayed in red, for example. Also, the seventh stage electrode plug 34 is in contact with water.
Below, since an impedance change that is manually applied to the control circuit 53 occurs, the relays 64 and below are switched, and as a result, the indicator lights 74 and below change color, for example, to green, and the water surface is positioned between them and the indicator lights 78 and 74. It is displayed that there is.
（発明が解決しようとする課題）
ところが上記動作は、各電極プラグ及び電気回路等が正
常である場合であって、もし、各電極プラグの表面に、
タンク内の水垢の付着により短絡状態あるいは絶縁状態
等となって電極プラグの誤動作が生じたり、またはそれ
ら電極プラグと表示灯との間の電気回路において断線、
接触不良、電子部品の不良等が生じた場合に、誤動作誤
表示がなされて、タンク内の水面を正確に検知すること
ができないという問題点があった。(Problem to be Solved by the Invention) However, the above operation is performed when each electrode plug and electric circuit etc. are normal, and if the surface of each electrode plug,
Limescale buildup inside the tank may cause a short circuit or insulation, resulting in malfunction of the electrode plug, or a disconnection in the electrical circuit between the electrode plug and the indicator light.
In the event of a poor contact, a defective electronic component, etc., a malfunction is displayed and the water level in the tank cannot be accurately detected.
〔課題を解決するための手段）
本発明はかかる問題点に着目してなされたもので、電極
式水面計における各電極プラグ及びそれら各電極プラグ
に接続される電気回路に異常が生じたときに、その異常
個所を即座に検知表示することができる自己診断回路を
提供することにある。またその自己診断回路は前記従来
例において使用されている単極双投リレー６、〜６ｏの
接点を増設、すなわち３極双投のリレーを用いることに
より達成できるようにして、従来の電極式水面計回路の
リレーのみを交換するだけで上記自己診断回路の構成を
可能ならしめて経済性と製作性に優れた電極式水面計の
自己診断装置を提供することにある。[Means for Solving the Problems] The present invention has been made by focusing on the above-mentioned problems, and is designed to solve the problem when an abnormality occurs in each electrode plug in an electrode type water level gauge and the electric circuit connected to each electrode plug. The object of the present invention is to provide a self-diagnosis circuit that can immediately detect and display abnormalities. In addition, the self-diagnosis circuit can be achieved by adding contacts of the single-pole, double-throw relays 6, to 6o used in the conventional example, that is, by using a three-pole, double-throw relay. It is an object of the present invention to provide a self-diagnosis device for an electrode type water level gauge which is excellent in economy and manufacturability by making it possible to construct the above-mentioned self-diagnosis circuit by simply replacing the relay of the meter circuit.
（実 施 例）
以下に本発明を、第１図及び第２図に示す実施例に基い
て詳細に説明するが、本実施例の構造と、従来例で説明
した構造との同一部分は、従来例で使用した符号を付し
て、その同一構造部分の説明は省略する。(Embodiment) The present invention will be explained in detail below based on the embodiment shown in FIGS. 1 and 2. The same parts between the structure of this embodiment and the structure explained in the conventional example are as follows. The same reference numerals used in the conventional example will be used, and explanations of the same structural parts will be omitted.
すなわち本実施例にあっては、従来例において使用され
ていた単極双投リレー６１〜６゜を、三極双投リレー６
１−６□−６２１〜６ｎ６、。−６□。とするものであ
って他の構成は従来例と変りない。That is, in this embodiment, the single-pole double-throw relay 61 to 6° used in the conventional example is replaced with the three-pole double-throw relay 6.
1-6□-621~6n6,. -6□. The other configurations are the same as the conventional example.
この三極双投リレーのうちの単極６１〜６ｎには、従来
例同様に各表示灯を接続するが、他の二極双投リレー６
目〜６１ｎ及び６２１〜６２ｎの接続回路は第２図の如
くである。双投リレー６．１〜６１ｎを第１グループと
し、双投リレー６２１〜６□。を第２グループとし、そ
の第１グループの双投リレー６１．と６．２．６１３と
６８．６１５と６．６．６．、と６１６．８１９と６１
ｎの各共通接点Ｃ同志を接続する。また第１グループの
奇数リレーのブレーク接点Ｂ同志を接続して第１グルー
プの警報ランプ８に接続する。またこの第１グループの
偶数リレーのメータ接点Ｍ同志を接続して第１グループ
の電源９に接続する。Each indicator light is connected to the single poles 61 to 6n of this three-pole double-throw relay as in the conventional example, but the other two-pole double-throw relay 6
The connection circuits of 61n and 621 to 62n are shown in FIG. Double-throw relays 6.1 to 61n form the first group, and double-throw relays 621 to 6□. is the second group, and the first group's double-throw relay 61. and 6.2.613 and 68.615 and 6.6.6. , and 616.819 and 61
n common contacts C are connected to each other. Also, the break contacts B of the odd-numbered relays of the first group are connected to each other and connected to the alarm lamp 8 of the first group. Further, the meter contacts M of the even-numbered relays of this first group are connected to each other and connected to the power source 9 of the first group.
なお前記警報ランプ８と電源９とは直列接続されている
。Note that the alarm lamp 8 and the power source 9 are connected in series.
同様にして第２グループの双投リレー６２２と６２３％
６２４と６２％％６２Ｂと６２７％６２１Ｓと６２
９Ｎの各共通接点Ｃ同志を接続する。また第２グループ
の奇数リレーのブレーク接点Ｂ同志を接続して第２グル
ープの警報ランプ１０に接続する。またこの第２グルー
プの偶数リレーのメータ接点Ｍ同志を接続して第２グル
ープの電源１１に接続する。なお前記警報ランプ１０と
電源１１とは直列接続されている。Similarly, the second group double throw relay 622 and 623%
624 and 62%%62B and 627%621S and 62
Connect the 9N common contacts C to each other. Also, the break contacts B of the odd-numbered relays of the second group are connected to each other and connected to the alarm lamp 10 of the second group. Further, the meter contacts M of the even-numbered relays of this second group are connected to each other and connected to the power source 11 of the second group. Note that the alarm lamp 10 and the power source 11 are connected in series.
以上が本実施例の構成であるが、次にその作用について
述べるが、この実施例にあっては、下から４番面と５番
目の電極プラグ３４と３゜との間に水面があって、電極
プラグ３３以上が気相に対応されており、４番目の電極
プラグ３４以降が水相に対応位置されているものである
。The above is the configuration of this embodiment.Next, its operation will be described.In this embodiment, there is a water surface between the fourth surface and the fifth electrode plug 34 from the bottom. , the electrode plugs 33 and above correspond to the gas phase, and the fourth electrode plugs 34 and the subsequent electrode plugs correspond to the water phase.
そこで今水相社対応する奇数番号の電極プラグ例えば３
．に接続される系統に故障が生じて、第１グループの双
投リレー６１．が動作されないと、その双投リレー６１
３はメイク接点Ｍに接触された状態であるため、双投リ
レー６．４のブレイク接点Ｂと接続され、この結果第１
グループの警報ランプ８が点灯し、水相に対応する奇数
番号の電極プラグ系に不具合があることが自動的に検知
される。So, for example, 3 electrode plugs with odd numbers compatible with Konamizusosha.
．． A failure occurs in the system connected to the first group of double-throw relays 61. is not operated, the double-throw relay 61
3 is in contact with the make contact M, so it is connected to the break contact B of the double-throw relay 6.4, and as a result, the first
The alarm lamp 8 of the group lights up, and it is automatically detected that there is a malfunction in the odd-numbered electrode plug system corresponding to the water phase.
次に水相に対応する偶数番号の電極プラグ例えば３□に
接続される系統に故障が生じて、第２グループの双投リ
レー６．２が動作されないと、双投リレー６２２はメイ
ク接点Ｍに接続された状態であるため、双投リレー６２
３のブレイク接点Ｂと接続され、この結果第２グループ
の警報ランプ１０が点灯し、水相に対応する偶数番号の
電極プラグ系に不具合があることが自動的に検知される
。Next, if a failure occurs in the system connected to the even-numbered electrode plug corresponding to the water phase, for example 3□, and the double-throw relay 6.2 of the second group is not operated, the double-throw relay 622 becomes the make contact M. Since it is in the connected state, the double-throw relay 62
As a result, the second group of alarm lamps 10 lights up, and it is automatically detected that there is a malfunction in the even-numbered electrode plug system corresponding to the water phase.
次に気相に対応する奇数番号の電極プラグ例えば３７に
接続される系統に故障が生じて、第２グループの双投リ
レー６２．が動作されないと、双投リレー６２７はブレ
イク接点Ｂに接続されたままの状態であるため、双投リ
レー６２６のメイク接点Ｍと接続され、この結果第２グ
ループの警報ランプ１０が点灯し、気相に対応する奇数
番号の電極プラグ系に不具合があることが自動的に検知
される。Next, a failure occurs in the system connected to the odd-numbered electrode plug, for example 37, corresponding to the gas phase, and the second group of double-throw relays 62. is not operated, the double-throw relay 627 remains connected to the break contact B, so it is connected to the make contact M of the double-throw relay 626, and as a result, the alarm lamp 10 of the second group lights up and the alarm lamp 10 is turned on. It is automatically detected that there is a malfunction in the odd numbered electrode plug system corresponding to the phase.
次に気相に対応する偶数番号の電極プラグ例えば３８に
接続される系統に故障が生じて、第１グループの双投リ
レー６１１１が動作されないと、双投リレー６．８はブ
レイク接点Ｂに接続された状態であるため、双投リレー
６□７のメイク接点Ｍと接続され、この結果第１グルー
プの警報ランプ８が点灯し、気相に対応する偶数番号の
電極プラグ系に不具合があることが自動的に検知される
ものである。Next, if a failure occurs in the system connected to the even-numbered electrode plug corresponding to the gas phase, for example 38, and the double-throw relay 6111 of the first group is not operated, the double-throw relay 6.8 is connected to the break contact B. Since it is connected to the make contact M of the double-throw relay 6□7, the first group alarm lamp 8 lights up, indicating that there is a problem in the even-numbered electrode plug system corresponding to the gas phase. is automatically detected.
次に定期点検等により、総べての電極プラグ系統につい
てリレーの不動作及び不動作時の誤動作を点検するには
、水管２内に水を充満させるか又は空状態とすること（
より、上記の各診断作用により故障個所の診断を行なう
ことができる。Next, in order to check all electrode plug systems for non-operation of relays and malfunctions during non-operation during periodic inspections, etc., fill water pipe 2 with water or leave it empty (
Therefore, the fault location can be diagnosed by each of the above-mentioned diagnostic actions.
以上のように本発明は、タンクに通じる上下方向の水管
の壁面を貫通する電極プラグを、上下方向に多数個配設
し、さらにそれら電極プラグ毎に制御回路、リレー及び
表示灯を接続せしめてなる電極式水面計において、前記
リレーを第１グループ、第２グループ及び第３グループ
の三極を有する三極双投リレーとなし、その第３グルー
プの接点は前記表示灯を切換え表示せしめるために使用
し、第１グループにあっては、一番目と二番、三番目と
四番目・・・・の順で２個ずつの双投スイッチの各共通
接点同志を接続し、さらに奇数番目の各メイク接点同志
及び偶数番目の各ブレイク接点同志を接続して、この両
接続端に第１の警報表示回路を接続し、また第２グルー
プにあっては二番目と三番目、四番目と五番臼・・・・
の順で２個ずつの双投スイッチの各共通接点同志を接続
し、さらに奇数番目の各ブレイク接点同志文び偶数番目
の各メイク接点同志を接続して、この両接続端に第２の
警報表示回路を接続しｋことを特徴とする電極式水面計
の自己診断装置である。As described above, the present invention has a plurality of electrode plugs vertically arranged that penetrate the wall of the vertical water pipe leading to the tank, and furthermore, a control circuit, a relay, and an indicator light are connected to each electrode plug. In the electrode type water level gauge, the relay is a three-pole double-throw relay having three poles of a first group, a second group, and a third group, and the contacts of the third group are used to switch and display the indicator light. In the first group, connect the common contacts of two double-throw switches in the order of the first and second, third and fourth, and then connect the common contacts of each of the odd-numbered switches. The make contacts and the even-numbered break contacts are connected together, and the first alarm display circuit is connected to both connection ends, and in the second group, the second and third, fourth and fifth Mortar...
Connect the common contacts of two double-throw switches in this order, and then connect the odd-numbered break contacts and the even-numbered make contacts, and connect the second alarm to both connecting ends. This is a self-diagnosis device for an electrode type water level gauge, characterized in that it is connected to a display circuit.
従ってこの発明によれば、上記三極双投リレーの使用に
よって電極式水面計の各電極に対応する水面表示回路に
異常が生じたときに警報される第１の警報表示又は第２
の警報表示により異常個所が容易に検知できるという効
果が得られる。またこの発明は、従来の単極双投スイッ
チを三極双投スイッチにかえることで、自己診断回路が
構成できるので、既存の電極式水面計に若干の改良を加
えるだけで可能となり、経済性、生産性に通した自己診
断装置が提供できる効果もある。Therefore, according to the present invention, when an abnormality occurs in the water surface display circuit corresponding to each electrode of the electrode type water level gauge by using the three-pole double-throw relay, the first alarm display or the second alarm display is displayed.
The effect of this alarm display is that abnormal locations can be easily detected. In addition, this invention allows a self-diagnosis circuit to be configured by replacing the conventional single-pole, double-throw switch with a three-pole, double-throw switch, making it possible to create a self-diagnosis circuit by making slight improvements to existing electrode-type water level gauges, making it economical. , it also has the effect of providing a self-diagnosis device for productivity.
第１図は本発明よりなる電極式水面計の自己診断装置の
実施例を示した回路説明図、第２図は自己診断回路の説
明図、第３図は従来の電極式水面計の説明図である。
６□、６．１・・・６．。・・・第１グループの双投リ
レー６２１６□、・・・・６２ｒ＋・・・第２グループ
の双投リレー８．１０・・・警報ランプ ９．１１・
・・電源性４名
第
図Fig. 1 is an explanatory circuit diagram showing an embodiment of the self-diagnosis device for an electrode type water level gauge according to the present invention, Fig. 2 is an explanatory diagram of the self-diagnosis circuit, and Fig. 3 is an explanatory diagram of a conventional electrode type water level gauge. It is. 6□, 6.1...6. . ...First group double throw relay 6216□, ...62r+...Second group double throw relay 8.10...Warning lamp 9.11.
・・Chart for 4 people on power supply
Claims (1)
極プラグを、上下方向に多数個配設し、さらにそれら電
極プラグ毎に制御回路、リレー及び表示灯を接続せしめ
てなる電極式水面計において、前記リレーを第１グルー
プ、第２グループ及び第３グループの三極を有する三極
双投リレーとなし、その第３グループの接点は前記表示
灯を切換え表示せしめるために使用し、第１グループに
あっては、一番目と二番、三番目と四番目・・・・の順
で２個ずつの双投スイッチの各共通接点同志を接続し、
さらに奇数番目の各メイク接点同志及び偶数番目の各ブ
レイク接点同志を接続して、この両接続端に第１の警報
表示回路を接続し、また第２グループにあっては二番目
と三番目、四番目と五番目・・・・の順で２個ずつの双
投スイッチの各共通接点同志を接続し、さらに奇数番目
の各ブレイク接点同志及び偶数番目の各メイク接点同志
を接続して、この両接続端に第２の警報表示回路を接続
したことを特徴とする電極式水面計の自己診断装置。1. In an electrode type water level gauge in which a large number of electrode plugs are vertically arranged to penetrate the wall of a vertical water pipe leading to a tank, and a control circuit, relay, and indicator light are connected to each electrode plug, The relay is a three-pole double-throw relay having three poles of a first group, a second group, and a third group, and the contacts of the third group are used to switch and display the indicator light, and the contacts of the third group are used to switch and display the indicator light, and If so, connect the common contacts of two double-throw switches in the order of first and second, third and fourth, etc.
Further, the odd-numbered make contacts and the even-numbered break contacts are connected, and a first alarm display circuit is connected to both connection ends, and in the second group, the second and third Connect the common contacts of two double-throw switches in the order of the fourth and fifth, and then connect the odd-numbered break contacts and even-numbered make contacts. A self-diagnosis device for an electrode type water level gauge, characterized in that a second alarm display circuit is connected to both connection ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322023A JP2879914B2 (en) | 1989-12-12 | 1989-12-12 | Self-diagnosis device for electrode type water gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1322023A JP2879914B2 (en) | 1989-12-12 | 1989-12-12 | Self-diagnosis device for electrode type water gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03181822A true JPH03181822A (en) | 1991-08-07 |
| JP2879914B2 JP2879914B2 (en) | 1999-04-05 |
Family
ID=18139058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1322023A Expired - Lifetime JP2879914B2 (en) | 1989-12-12 | 1989-12-12 | Self-diagnosis device for electrode type water gauge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2879914B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014109437A (en) * | 2012-11-30 | 2014-06-12 | Noritz Corp | Water level detection signal detector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798951B (en) * | 2017-11-17 | 2020-10-20 | 厦门雅迅网络股份有限公司 | Self-correction circuit and method for vehicle-mounted oil level detection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5342270B2 (en) | 2009-02-23 | 2013-11-13 | パナソニック株式会社 | LED dimming / lighting device and LED lighting apparatus using the same |
-
1989
- 1989-12-12 JP JP1322023A patent/JP2879914B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014109437A (en) * | 2012-11-30 | 2014-06-12 | Noritz Corp | Water level detection signal detector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2879914B2 (en) | 1999-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |