JPH0348125A - Liquid level sensor - Google Patents
Liquid level sensorInfo
- Publication number
- JPH0348125A JPH0348125A JP18265189A JP18265189A JPH0348125A JP H0348125 A JPH0348125 A JP H0348125A JP 18265189 A JP18265189 A JP 18265189A JP 18265189 A JP18265189 A JP 18265189A JP H0348125 A JPH0348125 A JP H0348125A
- Authority
- JP
- Japan
- Prior art keywords
- liquid level
- liquid
- cover
- level sensor
- air bubbles
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000003254 anti-foaming effect Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 2
- 230000009545 invasion Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000015067 sauces Nutrition 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、液体に気泡を生じる場合の液面の水位を感知
する液面レベルセンサーに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid level sensor that detects the level of a liquid when bubbles are generated in the liquid.
〔従来の技術］
従来の液面センサーは、導電性の電極だけで構成され、
電極はむき出しの状態であったため、気泡の生じないと
きにだけしか使用できなかった。[Conventional technology] Conventional liquid level sensors consist only of conductive electrodes.
Since the electrodes were exposed, they could only be used when no air bubbles were formed.
そして、気泡が生じたときは、泡センサーとしてのみの
使用法しかなかった３、なお、この種の装置として関連
するものには例えば特開昭６２−７９３１８号が挙げら
れる。When bubbles were generated, the device could only be used as a bubble sensor3.Related devices of this type include, for example, Japanese Patent Application Laid-open No. 79318/1983.
上記従来技術は、液面センサーとはいっても主として生
じる気泡を感知する泡センサーとして使用されていた。Although the above-mentioned conventional technology is a liquid level sensor, it is mainly used as a bubble sensor that detects generated bubbles.
すなわち、このセンサーでは、気泡の感知は可能である
が、その気泡の下の液面の感知は不可能であった。In other words, although this sensor was capable of sensing bubbles, it was not possible to sense the liquid level below the bubbles.
本発明は、液体に気泡を生じる場合においても、液面を
正確に感知することを目的とする。An object of the present invention is to accurately sense the liquid level even when bubbles are generated in the liquid.
上記目的を達成するために、従来の電極部を液面ガイド
カバーで覆い、気泡がこの液面ガイドカパー内に入らな
いようにしたものである。液面ガイドカバーは、電極部
をすべて覆い、その上部。In order to achieve the above object, the conventional electrode section is covered with a liquid level guide cover to prevent air bubbles from entering the liquid level guide cover. The liquid level guide cover covers all the electrode parts and is located above it.
下部の側面には、気体、液体が通過するように穴が開け
られ、底部は、水平面に対して角度が付けられふたがさ
れているものである。A hole is made in the side surface of the lower part to allow gas and liquid to pass through, and the bottom part is angled with respect to the horizontal plane and is covered with a lid.
液面ガイドカバー上部に設けられている穴は、均圧を保
持するためのものであり、液は下部の穴より出入りする
。液面ガイドカバーより下方から上がってくる気泡は、
下部の穴が側面に開けられているため、その穴から液面
ガイドカバー内への侵入は無（、液面ガイドカバー内は
気泡の無い液面が保たれ正確に液面の感知が可能となる
。The hole provided in the upper part of the liquid level guide cover is for maintaining equal pressure, and the liquid enters and exits through the hole at the bottom. Air bubbles coming up from below the liquid level guide cover,
Since the hole at the bottom is drilled on the side, there is no possibility of intrusion into the liquid level guide cover through the hole (a bubble-free liquid level is maintained inside the liquid level guide cover, making it possible to accurately sense the liquid level. Become.
以下、本発明の一実施例を第１図により説明する。液面
は、一般に高水位電ＦＭ１先端から低水位電極２先端オ
で変動する。このとき、液は液出入寒８より流入出し、
均圧保持用穴７で液面ガイドカバー３内外の均圧を保つ
。また、液面ガイドカバ−３下部には、水平面に対して
角度が付けられて底ふたが設けであるので、内部に液が
溜るのを防曵゛ことができる。下方より上方に上がる気
泡は、液出大穴８が液面ガイドカバ−３下部側面に設け
られているので、液面ガイドカバー３内に入ることはな
い。An embodiment of the present invention will be described below with reference to FIG. The liquid level generally fluctuates from the tip of the high water level electrode FM1 to the tip of the low water level electrode FM1. At this time, the liquid flows in and out from the liquid inlet and outlet 8,
Equal pressure inside and outside of the liquid level guide cover 3 is maintained by the equalizing pressure maintaining hole 7. Furthermore, since a bottom cover is provided at the bottom of the liquid level guide cover 3 at an angle with respect to the horizontal plane, it is possible to prevent liquid from accumulating inside. Air bubbles rising upward from below do not enter the liquid level guide cover 3 because the large liquid outlet hole 8 is provided on the lower side surface of the liquid level guide cover 3.
本実施例によれば、液体１こ一気泡を生じる場合におい
て、正確に液面を感知することができ、内部に液溜りが
生ずる虞れもない。According to this embodiment, when each liquid produces bubbles, the liquid level can be accurately sensed, and there is no possibility that a liquid pool will form inside.
本発明の他の実施例をｆＪ２図曇こより説明する。Another embodiment of the present invention will be explained with reference to the fJ2 diagram.
基本的な構成２作用は、第１図で説明したとおりである
。ここでは、さらに消泡ネヴトＩＯが設けられている。The basic structure 2 function is as explained in FIG. Here, an antifoaming Nevto IO is also provided.
万一、液面ガイドカバー３内に気泡が取り込まれた場合
、液面は消泡ネヴト１０より下部にあり、液面が次第に
上がって４ると、その上部の気泡は消泡ネリト１０で破
泡され、高水位位置電極ｌで正確な液面を感知すること
ができる。よって、第１図の実施例の場合よりもより正
確に液面を感知することができる。In the unlikely event that air bubbles are taken into the liquid level guide cover 3, the liquid level will be below the defoaming nerit 10, and when the liquid level gradually rises 4, the bubbles at the top will be broken by the defoaming nerit 10. The high water level electrode allows accurate sensing of the liquid level. Therefore, the liquid level can be sensed more accurately than in the embodiment shown in FIG.
本発明醤こよれば、液面ガイドカバー内に気泡が入らな
いので、気泡の生じる場合においても液面の感知を正確
に行うことができる。According to the sauce of the present invention, since air bubbles do not enter the liquid level guide cover, the liquid level can be accurately sensed even when air bubbles are generated.
第１図は本発明の一実施例の縦断面図、第２図は本発明
の他の実施例の縦断面図である。
１・・・・・・高水位電極、２・・−・・低水位電極、
３・・・・・・液面ガイドカバー ４・・・・・・シリ
コン栓、５・・・・・・装ナブト、６・・・・・・取り
付は部、７・・・・・・均圧保持用穴、オｌ 図FIG. 1 is a longitudinal sectional view of one embodiment of the invention, and FIG. 2 is a longitudinal sectional view of another embodiment of the invention. 1...High water level electrode, 2...Low water level electrode,
3...Liquid level guide cover 4...Silicone plug, 5...Installation nut, 6...Installation part, 7... Equal pressure holding hole, hole
Claims (1)
極部を覆い、底部に水平面に対して角度を付けた底ふた
を設け、そして上部と下部の側面に気体又は液体の通る
穴を有する液面ガイド・カバーを設けたことを特徴とす
る液面レベルセンサー。 ２、前記電極部に高水位と低水位を感知する電導体の電
極を設けたことを特徴とする請求項第１項記載の液面レ
ベルセンサー。 ３、前記水面の高水位と低水位を感知する電導体の電極
の間に消泡ネットを設けたことを特徴とする請求項第２
項記載の液面レベルセンサー。[Claims] 1. A liquid level sensor consisting of an electrode part of a conductor, which covers the electrode part, has a bottom lid at an angle with respect to the horizontal plane, and has gas or liquid on the upper and lower sides. A liquid level sensor characterized by having a liquid level guide cover having a hole through which the liquid level sensor passes. 2. The liquid level sensor according to claim 1, wherein the electrode portion is provided with a conductive electrode for sensing high water level and low water level. 3. Claim 2, characterized in that an antifoaming net is provided between the electrodes of the electrical conductor that senses the high and low water levels of the water surface.
Liquid level sensor as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18265189A JPH0348125A (en) | 1989-07-17 | 1989-07-17 | Liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18265189A JPH0348125A (en) | 1989-07-17 | 1989-07-17 | Liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348125A true JPH0348125A (en) | 1991-03-01 |
Family
ID=16122041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18265189A Pending JPH0348125A (en) | 1989-07-17 | 1989-07-17 | Liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348125A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2444552A (en) * | 2006-12-06 | 2008-06-11 | Jigsaw Project Services Ltd | Conductive probe for sensing liquid levels in drainage systems |
| EP2998164A1 (en) | 2011-02-14 | 2016-03-23 | Toyota Jidosha Kabushiki Kaisha | Vehicle sound absorption structure |
-
1989
- 1989-07-17 JP JP18265189A patent/JPH0348125A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2444552A (en) * | 2006-12-06 | 2008-06-11 | Jigsaw Project Services Ltd | Conductive probe for sensing liquid levels in drainage systems |
| EP2998164A1 (en) | 2011-02-14 | 2016-03-23 | Toyota Jidosha Kabushiki Kaisha | Vehicle sound absorption structure |
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