JPS62209303A - Freezing thickness detector - Google Patents
Freezing thickness detectorInfo
- Publication number
- JPS62209303A JPS62209303A JP5152286A JP5152286A JPS62209303A JP S62209303 A JPS62209303 A JP S62209303A JP 5152286 A JP5152286 A JP 5152286A JP 5152286 A JP5152286 A JP 5152286A JP S62209303 A JPS62209303 A JP S62209303A
- Authority
- JP
- Japan
- Prior art keywords
- ice
- freezing
- main electrode
- electrode
- thickness
- 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.)
- Withdrawn
Links
- 238000007710 freezing Methods 0.000 title claims abstract description 30
- 230000008014 freezing Effects 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002184 metal Substances 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 241000786798 Atya Species 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は結氷管面上の結氷厚さの検出装置に（Ｌす、結
氷現象に対して高い追従性を有し、結氷水質に影響され
ることなく、結氷厚さの演舞、設定、表示、警報を行な
わせ、真の結氷厚さの検出を行なわせるようＫしたもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a device for detecting the thickness of ice on the surface of a freezing tube. The system is designed to perform various functions, settings, displays, alarms, and detect the true ice thickness.
例えば、水の冷却装置には蓄熱槽中の結氷管表面に結氷
させ、氷の潜熱を利用するよ５にしたものがある。この
場合に結氷面で成長する氷の厚木の制御が必要で、従来
は制御のための検出装置として水と氷との電気伝導度の
差異を利用した検出端が眉いられる。これには結氷管面
に一定長さの電極棒を樹てておき、結氷により電極棒の
全部が蔽はれ、電極棒表面の電極と結氷用水との間の通
電を氷で遮断させ、結氷厚さを検出し、冷却管中の冷媒
などのオン・オフ制御により一定厚さの結氷が行なわれ
る。ところがこのように検出端を取りつけてしまえば運
転中における結氷厚さの設定値の変更には一度運転を停
止させ、量さの異なる他の電極棒を交換し、結氷厚さに
対しては現場に赴き、目視する以外には他に方法がなか
ったものである。要するにこれは結氷管面の結氷、融氷
に対して常に正確に追従し、信号を出力させる検出端が
存在しなかったことＫよるものである。For example, some water cooling devices are designed to freeze on the surface of a freezing tube in a heat storage tank and utilize the latent heat of the ice. In this case, it is necessary to control the thickness of ice that grows on the frozen surface, and conventionally, a detection device that uses the difference in electrical conductivity between water and ice has been used as a detection device for control. To do this, an electrode rod of a certain length is placed on the surface of the freezing tube, and the entire electrode rod is covered with ice, and the electricity between the electrode on the surface of the electrode rod and the freezing water is interrupted by the ice, and the ice is frozen. Ice is formed to a certain thickness by detecting the thickness and controlling the on/off of the refrigerant in the cooling pipe. However, once the detection end is installed in this way, changing the ice thickness setting during operation requires stopping the operation, replacing another electrode rod of a different size, and adjusting the ice thickness on-site. There was no other way but to go there and see it visually. In short, this is because there was no detection end that could always accurately follow the freezing and melting of ice on the surface of the freezing tube and output a signal.
本発明はこの点に鑑み行はれたものであって、氷と水と
の電気伝導度の差による結氷厚さを検出する装置におい
て結氷管面上に氷の熱伝導率と近似特性の電気絶縁棒を
樹て、これに二重螺旋状に細い電気導線を巻いた主電極
部分と、その先端に同形状の単位長さの補償電極部分よ
りなる検出端の各電極よりの出力で結氷厚さの演算、設
定、表示、警報を行なわせるようにしたものである。The present invention has been developed in view of this point, and in a device that detects the thickness of ice based on the difference in electrical conductivity between ice and water, an electric current having an approximate characteristic of the thermal conductivity of ice is placed on the surface of the freezing tube. The ice formation thickness is determined by the output from each electrode at the detection end, which consists of an insulated rod with a thin electrical conductor wound in a double spiral around the main electrode, and a compensating electrode of the same shape and unit length at the tip. It is designed to perform calculations, settings, displays, and alarms.
これを図について示す。第１図０）は結氷管面に検出端
を増りつけた状態を示す断面略図で、（→紘検出端の詳
細図である。（１１は氷の熱伝導率と近似特性の電気絶
縁棒で、其の表面に細い電気導線として熱伝導率の低い
金属細線、一般には、高抵抗細線を二重螺旋状に巻きつ
けられ主電極（２）を形成させる。更にこの先端部に同
形状に単位長さの補償電極（３）が形成され、夫々の端
末は口出し線（４）に接続される。This is illustrated for the figure. Figure 1 (0) is a schematic cross-sectional view showing the state in which a detection end is added to the surface of the freezing tube. Then, a thin metal wire with low thermal conductivity, generally a thin wire with high resistance, is wound around its surface in a double spiral to form a main electrode (2). Compensating electrodes (3) of unit length are formed, each terminal being connected to a lead wire (4).
このような構造の検出端を結氷管（５）上Ｋｍ付はバン
ド（８）で取付けられる。この結氷管（５）は蓄冷槽内
の結氷用水（６）中に浸漬され、管中の冷媒による冷却
で結氷（７）が成長する。第１図（ロ）は補償電極部で
ある。The detection end of such a structure is attached to the freezing tube (5) with a band (8). This freezing tube (5) is immersed in freezing water (6) in a cold storage tank, and ice (7) grows by being cooled by the refrigerant in the tube. FIG. 1(b) shows the compensation electrode section.
第２図は検出装置の連結を示す略図で０）は主電極（２
）と補償電極（３）とを電気的に分離した４線方式で、
（ロ）は主電極と補償電極の一極を共通にした３線方式
の場合を示す。（２）は主電極、（３）は補償電極、ａ
υは制御面、（９）は表示器。Figure 2 is a schematic diagram showing the connection of the detection device, where 0) is the main electrode (2
) and compensation electrode (3) are electrically separated.
(b) shows the case of a three-wire system in which one pole of the main electrode and one of the compensation electrodes are shared. (2) is the main electrode, (3) is the compensation electrode, a
υ is the control surface, and (9) is the display.
顛は警報器である。The screen is an alarm.
次にこの動作について説明する０先づ本発明の機能を果
すためには次のような条件を満足しなければならない。Next, this operation will be explained. First, in order to perform the functions of the present invention, the following conditions must be satisfied.
即ち結氷管面（５）に樹てられた検出端は、■氷の熱伝
導率と近似特性の電気絶縁棒（１）とし、結氷、融氷時
の何れ場合でも絶縁棒＋１１を囲む結氷面はこれを通し
て氷から水へ或は水から氷への熱の伝導が行はれること
がなく、結氷面の環境を乱すことがないので、結氷、融
氷に対して常に正確に追従することができる。■結氷に
対する電気信号の出力については絶縁棒（１）の表面に
螺旋状に電極となる細い電気導線が巻かれ、これが金属
細線であってもその熱伝導は水、氷に較べて無視機する
程の高い熱伝導特性を有するが、絶縁棒（１）に螺旋状
に巻かれているために金属細線の長さは絶縁棒の長さ方
向に較べると極めて長くなる０結局は絶縁棒の長さ方向
の金属細線の熱伝導は見掛は上、極めて小さな値となり
これによる結氷面の環境を乱すことなく追従性も優れ、
正確な信号を出力させることができるととＫなる０■出
力される電気信号の結氷厚さに対する比例性については
電極となる螺旋状金属細線は絶縁棒（１）の表面に平行
の二重螺旋状に巻かれているため、結氷用水に対し、単
位長さの絶縁棒 Ｋおける対向電極の面積、距離は主電
極（２）部分の何れの点においても一定で変りがない０
従って結氷厚さに対して完全に比例性を有することは明
らかである。■出力信号は結氷用水の水質に影響されな
い。これは補償電極（３）の出力で生煮電極（２）の出
力を補償演具させるか、らである。結氷用水の導電率は
その温度、混入される不純卿などに影響され、これらの
函数となるから、これをｆ（ｔ−Ｐ）で表わし、補償電
極の長さを単位長さＵ＝１とし、電源電圧なＥとすれば
、その電流１．二ｆ（ｔ−１’）Ｅとなる。That is, the detection end installed on the freezing tube surface (5) is an electrically insulating rod (1) whose thermal conductivity is similar to that of ice, and the frozen surface surrounding the insulating rod +11 is used in both cases of freezing and melting. There is no heat conduction from the ice to the water or from the water to the ice through this, and the environment on the frozen surface is not disturbed, so it is possible to always accurately follow freezing and melting. can. ■ Regarding the output of electrical signals in response to ice formation, a thin electrical conductor wire that serves as an electrode is spirally wound around the surface of the insulating rod (1), and even if it is a thin metal wire, its heat conduction is negligible compared to water and ice. However, since it is spirally wound around the insulating rod (1), the length of the thin metal wire becomes extremely long compared to the length of the insulating rod.In the end, the length of the insulating rod The heat conduction of the thin metal wire in the horizontal direction is apparently good, but it has an extremely small value, which does not disturb the environment of the frozen surface and has excellent followability.
If it is possible to output an accurate signal, it will be K0 ■ Regarding the proportionality of the output electric signal to the ice thickness Because it is wound into a shape, the area and distance of the opposing electrodes in the unit length insulating rod K are constant and do not change at any point on the main electrode (2) section with respect to the freezing water.
Therefore, it is clear that it is completely proportional to the ice thickness. ■The output signal is not affected by the quality of the freezing water. This is because the output of the compensating electrode (3) is used to compensate the output of the raw electrode (2). The conductivity of freezing water is affected by its temperature, impurities mixed in, etc., and is a function of these, so this is expressed as f(t-P), and the length of the compensation electrode is set as unit length U = 1. , the power supply voltage is E, then the current 1. 2f(t-1')E.
主電極の長さをり、冷却用水に浸されている部分の長さ
をＥとし、Ｏ≦Ｘ≦Ｌ とすれば、主電極（２）の電導
度は、）：ｆ（ｔ・戸）で、その時の電ＭＬ ハ、ｊ、
４ｒ＝Ｘｆ（ｔｆ）Ｅ ）：、 ｙｚ ’）、コレｔ
ｍ 償電ｆｆｌ （３１の出力で主電極（２）の出力を
割れば、ＡｔｙＡ、２χ’ｆ（ｔ・戸つ丘／ｆｔｔ・％
）Ｅ ”１ｍ’ となる。If the length of the main electrode is calculated, the length of the part immersed in the cooling water is E, and O≦X≦L, then the conductivity of the main electrode (2) is ):f(t・door), Den ML at that time ha, j,
4r=Xf(tf)E):, yz'), this t
m compensation ffl (dividing the output of the main electrode (2) by the output of 31, AtyA, 2χ'f(t・Totsuoka/ftt・%
)E ``1m''.
ことなく結氷厚さを高精度に検出することが出来ること
になる。０次に若し、結氷の制御が機器の不具合などで
行なわれなくなり、過剰結氷のため蓄冷槽の破損等が発
生することがある。この場合に補償電極（３）が結氷で
蔽はれ、その出力は零となるので、これで保護、警報を
行なわせるものである。補償電流ｉ。は常時流れている
ことが正常であるが、導線の＆途中の断線、接触不良な
どに対しては警報を発することになり、７エールセー７
型の警報装置となる。これは保護装置として理想的回路
である。■出力信号の表示及び制御設定値は制御面ａＤ
内で゛前記の演算を行はせる。この結果、指示ｉ （９
１、更に過剰結氷に対する警報ブザ−（ＩＩを作動させ
ることは特に新たな事ではなく、容易に可能でありその
説明は省略する。This means that the ice thickness can be detected with high accuracy without any problems. 0th order If icing control is not performed due to equipment malfunction, excessive icing may cause damage to the cold storage tank. In this case, the compensation electrode (3) is covered with ice and its output becomes zero, which is used for protection and alarm. Compensation current i. It is normal for the current to be flowing at all times, but an alarm will be issued if there is a break in the conductor or a poor connection.
It becomes a type of alarm device. This is an ideal circuit as a protection device. ■Output signal display and control setting values are displayed on the control surface aD.
Perform the above calculation within ``. As a result, the instruction i (9
1. Additionally, activating the warning buzzer (II) for excessive ice formation is not particularly new, and is easily possible, so its explanation will be omitted.
本発明は以上のような構成としたために１構造は極めて
簡単であり、結氷面に対する出影響を完全に補償させ、
制御設定値は制御面で容易に行うことが出来、出力信号
の表示、過剰結氷に対する７工−ルセー７的機能の保護
警報を発することができ、優−れた結氷厚さ表示、警報
装置を提供することができるものである。Since the present invention has the above configuration, the structure is extremely simple, and the influence on the freezing surface is completely compensated for.
Control settings can be easily made on the control surface, output signal display, protection alarm can be issued for excessive icing, and excellent ice thickness display and alarm system can be used. It is something that can be provided.
第１図０）は結氷管面に検出端を取りつけた状態を示す
断面略図、同図（→は検出端の詳細図、第２図は検出装
置の連結を示す図で、０）は主電極と補償電極とを電気
的に分離した４線方式を示す図、（嗜は主電極と補償電
極の一極を共通にした３＃方式を示す図である。
１・・・・・・電気絶縁棒、２・・・・・・主電極、３
・・・・・・補償電極、４・・・・・・口出し線、５・
・・・・・結氷管、６・・・・・・結氷用水、７・・・
・・・結氷、８・・・・・・取付は）（ンド、９・・・
・・・表示器、１０・・・・・・警報器、１１・・・・
・・制御函発明者 弁上和平
伊東一部
出願人 株式会社 前用製作所
代表者 前川正雄
−＝−０
手続補正書（方式）
％式％
１、事件の表示 昭和６１年持重ｊｌｌ！５１５２
２号２、発明の名称 結氷厚さ検出装置五 補正を
する者
事件との関係 特許出願人
住 所 東京都江東区牡丹２丁目１３番１号マ
エカワセイサクシ田Figure 1 (0) is a schematic cross-sectional view showing the state in which the detection end is attached to the surface of the freezing tube. This is a diagram showing a 4-wire system in which the main electrode and the compensation electrode are electrically separated. (This is a diagram showing a 3# system in which the main electrode and the compensation electrode have one pole in common. 1... Electrical insulation Rod, 2... Main electrode, 3
... Compensation electrode, 4 ... Lead wire, 5.
... Freezing tube, 6 ... Freezing water, 7 ...
...Freezing, 8...Installation) (and, 9...
...Indicator, 10...Alarm, 11...
... Control box inventor Wahei Bengami Ito Partial applicant Maeyo Seisakusho Co., Ltd. Representative Masao Maekawa -=-0 Procedural amendment (method) % formula % 1. Indication of case 1985 Holding weight jll! 5152
No. 2, No. 2, Title of the invention Ice formation thickness detection device 5 Relationship to the case of the person making the amendment Patent applicant address Mae Kawasei Sakushida, 2-13-1 Botan, Koto-ku, Tokyo
Claims (1)
する装置において、結氷管面上に氷の熱伝導率と近似特
性の電気絶縁棒を樹て、これに二重螺旋状に細い電気導
線を巻いた主電極部分とその先端に同形状の単位長さの
補償電極部分よりなる検出端の夫々の出力で結氷厚さの
演算、設定、表示、警報を行なわせることを特徴とした
結氷厚さ検出装置。(1) In a device that detects the thickness of frozen ice based on the difference in electrical conductivity between ice and water, an electrically insulating rod with thermal conductivity similar to that of ice is placed on the surface of the freezing tube, and a double spiral It is characterized by the ability to calculate, set, display, and alarm the ice thickness using the respective outputs of the detection end, which consists of a main electrode part with a thin electrical conductor wrapped around it, and a compensating electrode part of the same shape and unit length at the tip of the main electrode part. Ice thickness detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5152286A JPS62209303A (en) | 1986-03-11 | 1986-03-11 | Freezing thickness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5152286A JPS62209303A (en) | 1986-03-11 | 1986-03-11 | Freezing thickness detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62209303A true JPS62209303A (en) | 1987-09-14 |
Family
ID=12889344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5152286A Withdrawn JPS62209303A (en) | 1986-03-11 | 1986-03-11 | Freezing thickness detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62209303A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737729A (en) * | 2016-03-02 | 2016-07-06 | 杭州源牌环境设备有限公司 | Ice thickness measurement device used for ice storage coil pipe |
| CN113375620A (en) * | 2021-06-03 | 2021-09-10 | 杭州华电华源环境工程有限公司 | Coil pipe ice thickness detection method based on temperature measurement, sensor and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5410735A (en) * | 1977-06-23 | 1979-01-26 | Siemens Ag | Monitor for stock of recording liquid in recording machine |
| JPS54153664A (en) * | 1978-05-24 | 1979-12-04 | Nippon Soken | Liquid level detector |
| JPS566117A (en) * | 1979-06-27 | 1981-01-22 | Matsushita Electric Ind Co Ltd | Liquid-level detector |
| JPS57187602A (en) * | 1981-05-15 | 1982-11-18 | Mayekawa Mfg Co Ltd | Construction of electrode for ice thickness detector |
| JPS6212451A (en) * | 1985-07-10 | 1987-01-21 | Akebono Brake Res & Dev Center Ltd | Cooling device for brake |
-
1986
- 1986-03-11 JP JP5152286A patent/JPS62209303A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5410735A (en) * | 1977-06-23 | 1979-01-26 | Siemens Ag | Monitor for stock of recording liquid in recording machine |
| JPS54153664A (en) * | 1978-05-24 | 1979-12-04 | Nippon Soken | Liquid level detector |
| JPS566117A (en) * | 1979-06-27 | 1981-01-22 | Matsushita Electric Ind Co Ltd | Liquid-level detector |
| JPS57187602A (en) * | 1981-05-15 | 1982-11-18 | Mayekawa Mfg Co Ltd | Construction of electrode for ice thickness detector |
| JPS6212451A (en) * | 1985-07-10 | 1987-01-21 | Akebono Brake Res & Dev Center Ltd | Cooling device for brake |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737729A (en) * | 2016-03-02 | 2016-07-06 | 杭州源牌环境设备有限公司 | Ice thickness measurement device used for ice storage coil pipe |
| CN113375620A (en) * | 2021-06-03 | 2021-09-10 | 杭州华电华源环境工程有限公司 | Coil pipe ice thickness detection method based on temperature measurement, sensor and system |
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