JPH07313831A - Concentration measuring device for moisture absorbing liquid of dehumidifier - Google Patents
Concentration measuring device for moisture absorbing liquid of dehumidifierInfo
- Publication number
- JPH07313831A JPH07313831A JP6148436A JP14843694A JPH07313831A JP H07313831 A JPH07313831 A JP H07313831A JP 6148436 A JP6148436 A JP 6148436A JP 14843694 A JP14843694 A JP 14843694A JP H07313831 A JPH07313831 A JP H07313831A
- Authority
- JP
- Japan
- Prior art keywords
- concentration
- temperature
- hygroscopic liquid
- liquid
- moisture absorbing
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1417—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with liquid hygroscopic desiccants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は吸湿液体を利用した除
湿装置の吸湿液体の濃度測定装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the concentration of a hygroscopic liquid in a dehumidifying device using the hygroscopic liquid.
【０００２】[0002]
【従来の技術】吸湿液体の除湿能力は再生時の濃度によ
ってほぼ決定される。吸湿液体が低濃度であれば除湿能
力が低く、また高濃度であれば除湿能力が増すが、あま
りに高濃度にすると結晶化のおそれがある。そのため吸
湿液体の適正な濃度管理が重要となる。2. Description of the Related Art The dehumidifying capacity of a hygroscopic liquid is substantially determined by the concentration during regeneration. If the concentration of the hygroscopic liquid is low, the dehumidifying ability is low, and if the concentration is high, the dehumidifying ability is increased, but if the concentration is too high, crystallization may occur. Therefore, it is important to properly control the concentration of the hygroscopic liquid.
【０００３】従来の吸湿液体の濃度測定方法としては、
水位検知による測定方法がある（例えば、特願平５−１
８７６９６号）。これは吸収器において吸湿液体により
空気中の水蒸気を吸収し、再生器において吸湿液体より
水蒸気を放出する除湿方法において、タンク内に蓄えら
れた吸湿液体の液面高さを測定し、その液面高さにより
吸湿液体の濃度を測定する方法である。As a conventional method for measuring the concentration of a hygroscopic liquid,
There is a measuring method by water level detection (for example, Japanese Patent Application No. 5-1
87696). This is a dehumidification method that absorbs water vapor in the air with a hygroscopic liquid in the absorber and releases water vapor from the hygroscopic liquid in the regenerator, and measures the liquid level of the hygroscopic liquid stored in the tank and It is a method of measuring the concentration of the hygroscopic liquid by the height.
【０００４】またその他の方法としては、溶液中に超音
波受発信機を入れ、液温と超音波伝播速度から液体濃度
を測定する方法や、溶液中に撹拌機を入れ、粘性トルク
から液体濃度を測定する方法がある。As another method, an ultrasonic wave transmitter / receiver is placed in the solution and the liquid concentration is measured from the liquid temperature and the ultrasonic wave propagation velocity, or a stirrer is put in the solution to measure the liquid concentration from the viscous torque. There is a way to measure.
【０００５】[0005]
【発明が解決しようとする課題】しかしながらこれらの
測定方法は、測定装置が高価であったり、また吸湿液体
と接触する部分、例えばセンサーが腐食するという問題
がある。However, these measuring methods have the problems that the measuring device is expensive and that the portion that comes into contact with the hygroscopic liquid, for example, the sensor is corroded.
【０００６】この発明は上記従来の欠点を解決するため
になされたものであって、その目的は、吸湿液体の濃度
を低コストに測定することが可能な除湿装置の吸湿液体
の濃度測定装置を提供することにあり、さらに腐食の問
題のなく濃度測定が可能な除湿装置の吸湿液体の濃度測
定装置を提供することにもある。The present invention has been made to solve the above-mentioned conventional drawbacks, and an object thereof is to provide a device for measuring the concentration of a hygroscopic liquid of a dehumidifying device, which is capable of measuring the concentration of the hygroscopic liquid at low cost. Another object of the present invention is to provide a concentration measuring device for a hygroscopic liquid of a dehumidifying device, which is capable of measuring the concentration without the problem of corrosion.
【０００７】[0007]
【課題を解決するための手段】そこで請求項１の除湿装
置の吸湿液体の濃度測定装置は、吸収器において吸湿液
体２により空気中の水蒸気を吸収し、再生器において吸
湿液体２を沸騰させて水蒸気を放出する除湿装置におい
て、吸湿液体２を蓄える再生容器１と、この再生容器１
内の吸湿液体２の温度を検出する温度検出手段４と、こ
の温度検出手段４により検出した温度を吸湿液体２の濃
度に変換する変換手段１３を備えたことを特徴としてい
る。Therefore, in the concentration measuring apparatus for the hygroscopic liquid of the dehumidifying device according to the first aspect, the moisture absorbing liquid 2 absorbs the water vapor in the air in the absorber, and the hygroscopic liquid 2 is boiled in the regenerator. In a dehumidifying device that releases water vapor, a regenerating container 1 that stores a hygroscopic liquid 2 and the regenerating container 1
It is characterized by including a temperature detecting means 4 for detecting the temperature of the hygroscopic liquid 2 therein and a converting means 13 for converting the temperature detected by the temperature detecting means 4 into the concentration of the hygroscopic liquid 2.
【０００８】また請求項２の除湿装置の吸湿液体の濃度
測定装置は、上記温度検出手段４を上記再生容器１の外
面に設置していることを特徴としている。Further, the apparatus for measuring the concentration of a hygroscopic liquid in the dehumidifying apparatus according to claim 2 is characterized in that the temperature detecting means 4 is installed on the outer surface of the regenerating container 1.
【０００９】さらに請求項３の除湿装置の吸湿液体の濃
度測定装置は、上記吸湿液体２の加熱時において、上記
温度検出手段４での検出温度の上昇率を求めると共に、
これに基づいて吸湿液体２の滞溜量を検知する溶液量把
握手段１４を設けたことを特徴としている。Further, the concentration measuring device of the hygroscopic liquid of the dehumidifying device according to claim 3 obtains the rate of increase of the temperature detected by the temperature detecting means 4 when the hygroscopic liquid 2 is heated,
It is characterized in that a solution amount grasping means 14 for detecting the accumulated amount of the hygroscopic liquid 2 on the basis of this is provided.
【００１０】[0010]
【作用】上記請求項１の除湿装置の吸湿液体の濃度測定
装置では、温度検出手段４による検出温度で吸湿液体２
の濃度を測定することができるので、低コストの測定装
置とすることができる。In the concentration measuring apparatus for the moisture absorbing liquid of the dehumidifying device according to the first aspect, the moisture absorbing liquid 2 is detected at the temperature detected by the temperature detecting means 4.
Since the concentration can be measured, it can be a low-cost measuring device.
【００１１】また請求項２の除湿装置の吸湿液体の濃度
測定装置のように温度検出手段４を再生容器１の外面に
設置すれば、温度検出手段４が吸湿液体と接触しないた
め、腐食の間題がない。If the temperature detecting means 4 is installed on the outer surface of the regenerating container 1 as in the apparatus for measuring the concentration of a hygroscopic liquid in the dehumidifying device according to the second aspect, the temperature detecting means 4 does not come into contact with the hygroscopic liquid, so that during the corrosion. There is no title.
【００１２】さらに請求項３の除湿装置の吸湿液体の濃
度測定装置では、上記温度検出手段４を利用して滞溜溶
液量の把握が行えるので、簡素な構成でありながら、精
度のよい液量管理が行える。Further, in the concentration measuring device for the hygroscopic liquid of the dehumidifying device according to the third aspect, since the amount of the staying solution can be grasped by using the temperature detecting means 4, the liquid amount is accurate with a simple structure. Can manage.
【００１３】[0013]
【実施例】次にこの発明の除湿装置の吸湿液体の濃度測
定装置の具体的な実施例について、図面を参照しつつ詳
細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the apparatus for measuring the concentration of a hygroscopic liquid of the dehumidifying device of the present invention will be described in detail with reference to the drawings.
【００１４】図１は吸湿液体の濃度測定装置の構成図を
示す。再生容器１内には吸湿液体である塩化リチウム
（ＬｉＣｌ）溶液２が蓄えられている。また再生容器１
内の底部には塩化リチウム溶液２を沸騰再生するための
ヒータ３が設けてあり、再生容器１のケーシング面に
は、温度測定するサーミスタ４と、制御故障時にヒータ
３をＯＦＦにする過昇防止装置５が取付けてある。さら
に再生容器１の外周部は、サーミスタ４、過昇防止装置
５と共に断熱材６で覆われている。FIG. 1 is a block diagram of a device for measuring the concentration of a hygroscopic liquid. A lithium chloride (LiCl) solution 2 which is a hygroscopic liquid is stored in the regeneration container 1. Recycle container 1
A heater 3 for boiling and regenerating the lithium chloride solution 2 is provided at the bottom of the inside, and a thermistor 4 for measuring the temperature and a heater 3 for turning off the heater 3 at the time of control failure are provided on the casing surface of the regenerating container 1. A device 5 is attached. Further, the outer peripheral portion of the regeneration container 1 is covered with a heat insulating material 6 together with the thermistor 4 and the excessive rise prevention device 5.
【００１５】図２はこの発明の一実施例による濃度測定
装置の制御構成図である。なお図１と同一部分は同一符
号を付している。図のようにヒータ３、サーミスタ４、
過昇防止装置５は、マイコン等より成る制御部１１と接
続されている。吸湿液体である塩化リチウム溶液２を再
生する場合、ヒータ３によって塩化リチウム溶液２を加
熱沸騰させる。再生容器１のケーシング外面に設置した
サーミスタ４で温度を測定し、制御部１１の温度検出部
１２において測定温度を検出する。そしてこの検出温度
は温度・濃度変換部１３へ出力される。温度・濃度変換
部１３では、温度検出部１２から入力された検出温度か
ら溶液濃度を算出するプログラムが実行され、算出した
溶液濃度のデータは濃度比較・溶液量計算部１４へ出力
される。濃度比較・溶液量計算部１４では、温度・濃度
変換部１３から入力された溶液濃度のデータと、濃度設
定部１５に予め設定した設定濃度値とを比較し、比較結
果をヒータ制御部１６へ出力する。さらに上記濃度比較
・溶液量計算部（溶液量把握手段）１４においては、温
度・濃度変換部１３から入力された溶液濃度のデータか
ら単位時間毎の溶液温度上昇値を求め、溶液量の検知も
行う。つまりヒータ３の能力を一定とすれば、単位時間
毎の溶液温度上昇値は溶液量に略反比例するはずである
から、この上昇値に基づいて溶液量を把握し、これによ
り再生容器１内の滞溜溶液量を管理するのである。ヒー
タ制御部１６では、溶液温度が設定温度に達したときに
濃度比較・溶液量計算部１４から出力される信号により
ヒータ３をＯＦＦにする。なお制御故障時は過昇防止装
置５によりヒータ３をＯＦＦにする。FIG. 2 is a control block diagram of the concentration measuring apparatus according to one embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals. As shown in the figure, heater 3, thermistor 4,
The excessive rise prevention device 5 is connected to a control unit 11 including a microcomputer or the like. When the lithium chloride solution 2 which is a hygroscopic liquid is regenerated, the lithium chloride solution 2 is heated and boiled by the heater 3. The thermistor 4 installed on the outer surface of the casing of the regenerating container 1 measures the temperature, and the temperature detecting unit 12 of the control unit 11 detects the measured temperature. Then, this detected temperature is output to the temperature / concentration converter 13. The temperature / concentration conversion unit 13 executes a program for calculating the solution concentration from the detected temperature input from the temperature detection unit 12, and the calculated solution concentration data is output to the concentration comparison / solution amount calculation unit 14. In the concentration comparison / solution amount calculation unit 14, the solution concentration data input from the temperature / concentration conversion unit 13 is compared with the preset concentration value preset in the concentration setting unit 15, and the comparison result is sent to the heater control unit 16. Output. Further, in the concentration comparison / solution amount calculation unit (solution amount grasping unit) 14, the solution temperature rise value per unit time is obtained from the data of the solution concentration input from the temperature / concentration conversion unit 13, and the solution amount is also detected. To do. That is, if the capacity of the heater 3 is constant, the solution temperature rise value per unit time should be substantially inversely proportional to the solution amount. Therefore, the solution amount is grasped based on this rise value, and the inside of the regeneration container 1 The amount of accumulated solution is controlled. The heater control unit 16 turns off the heater 3 by a signal output from the concentration comparison / solution amount calculation unit 14 when the solution temperature reaches the set temperature. When the control fails, the heater 3 is turned off by the overheat prevention device 5.
【００１６】塩化リチウム溶液の濃度と沸騰温度との関
係を図３に示す。図のように、１気圧において塩化リチ
ウム溶液の濃度が３０％では沸点は１２０℃であり、濃
度が４０％では沸点が１３５℃である。したがって吸湿
液体である塩化リチウム溶液２を沸騰再生させる場合、
溶液温度を測定することにより溶液濃度が検知可能とな
る。The relationship between the concentration of the lithium chloride solution and the boiling temperature is shown in FIG. As shown, the boiling point is 120 ° C. when the concentration of the lithium chloride solution is 30% at 1 atm, and the boiling point is 135 ° C. when the concentration is 40%. Therefore, when the lithium chloride solution 2 which is a hygroscopic liquid is regenerated by boiling,
The solution concentration can be detected by measuring the solution temperature.
【００１７】ここで実際に濃度が２５％の塩化リチウム
溶液を濃度４０％にまで沸騰再生させる場合について図
４を用いて説明する。濃度が２５％の塩化リチウム溶液
を加熱して溶液温度が沸点に達するまでは、濃度は２５
％のままでほとんど変化しない（図中１）。溶液温度が
沸点に達すると、溶液中の水分が蒸発するので濃度が次
第に高くなり、それつれて沸点も次第に高くなる（図中
ＩＩ）。そしてさらに加熱沸騰させ溶液温度が１３５℃
になると、濃度が４０％に達したことになるので加熱を
停止する。Here, a case where the 25% lithium chloride solution is actually boiled and regenerated to a 40% concentration will be described with reference to FIG. Until the solution temperature reaches the boiling point by heating a 25% lithium chloride solution, the concentration is 25
%, It remains almost unchanged (1 in the figure). When the solution temperature reaches the boiling point, the water content in the solution evaporates and the concentration gradually increases, and the boiling point also gradually increases (II in the figure). Then heat it to a boil and bring it to a solution temperature of 135 ° C.
Then, since the concentration has reached 40%, heating is stopped.
【００１８】以上のようにこの発明の実施例では、吸湿
液体である塩化リチウム溶液２の沸騰再生を行う場合、
溶液濃度を再生容器１のケーシング外面に設置したサー
ミスタ４による検出温度で測定することができるので、
低コストの濃度測定装置とすることができる。またセン
サー部であるサーミスタ４が吸湿液体である塩化リチウ
ム溶液２と接触しないため、腐食の心配がない。As described above, in the embodiment of the present invention, when the boiling regeneration of the lithium chloride solution 2 as the hygroscopic liquid is performed,
Since the solution concentration can be measured by the temperature detected by the thermistor 4 installed on the outer surface of the casing of the regeneration container 1,
It can be a low-cost concentration measuring device. Further, since the thermistor 4 which is the sensor portion does not come into contact with the lithium chloride solution 2 which is a hygroscopic liquid, there is no fear of corrosion.
【００１９】[0019]
【発明の効果】以上のように請求項１の除湿装置の吸湿
液体の濃度測定装置では、温度検出手段による検出温度
で吸湿液体の濃度を測定することができるので、低コス
トの測定装置とすることができる。As described above, according to the concentration measuring device of the moisture absorbing liquid of the dehumidifying device of the first aspect, since the concentration of the moisture absorbing liquid can be measured at the temperature detected by the temperature detecting means, the measuring device is low cost. be able to.
【００２０】また請求項２の除湿装置の吸湿液体の濃度
測定装置のように温度検出手段を再生容器の外面に設置
すれば、温度検出手段が吸湿液体と接触しないため、腐
食の問題がない。If the temperature detecting means is installed on the outer surface of the regenerating container as in the concentration measuring apparatus for the hygroscopic liquid of the dehumidifying device according to the second aspect, the temperature detecting means does not come into contact with the hygroscopic liquid, so that there is no problem of corrosion.
【００２１】さらに請求項３の除湿装置の吸湿液体の濃
度測定装置では、上記温度検出手段を利用して滞溜溶液
量の把握が行えるので、簡素な構成でありながら、精度
のよい液量管理が行える。Further, in the concentration measuring device for the hygroscopic liquid of the dehumidifying device according to the third aspect, since the amount of the staying solution can be grasped by utilizing the temperature detecting means, the liquid amount can be controlled accurately with a simple structure. Can be done.
【図１】この発明の実施例の濃度測定装置の構成図であ
る。FIG. 1 is a configuration diagram of a concentration measuring apparatus according to an embodiment of the present invention.
【図２】この発明の実施例の濃度測定装置の制御構成図
である。FIG. 2 is a control configuration diagram of the concentration measuring apparatus according to the embodiment of the present invention.
【図３】塩化リチウム溶液の濃度と沸騰温度との関係を
示す模式図である。FIG. 3 is a schematic diagram showing the relationship between the concentration of a lithium chloride solution and the boiling temperature.
【図４】濃度が２５％の塩化リチウム溶液を濃度４０％
にまで沸騰再生する場合についての説明図である。FIG. 4: 40% concentration of 25% lithium chloride solution
It is explanatory drawing about the case of carrying out boiling reproduction to.
１ 再生容器 ２ 塩化リチウム溶液（吸湿液体） ４ サーミスタ（温度検出手段） １３ 温度・濃度変換部（変換手段） １４ 濃度比較・溶液量計算部（溶液量把握手段） 1 Regeneration Container 2 Lithium Chloride Solution (Hygroscopic Liquid) 4 Thermistor (Temperature Detector) 13 Temperature / Concentration Converter (Converter) 14 Concentration Comparison / Solution Volume Calculator (Solution Volume Grasping Means)
Claims (3)
気中の水蒸気を吸収し、再生器において吸湿液体（２）
を沸騰させて水蒸気を放出する除湿装置において、吸湿
液体（２）を蓄える再生容器（１）と、この再生容器
（１）内の吸湿液体（２）の温度を検出する温度検出手
段（４）と、この温度検出手段（４）により検出した温
度を吸湿液体（２）の濃度に変換する変換手段（１３）
を備えたことを特徴とする除湿装置の吸湿液体の濃度測
定装置。1. A moisture absorbing liquid (2) for absorbing water vapor in air in an absorber, and a moisture absorbing liquid (2) for a regenerator.
In a dehumidifying device for boiling water to release water vapor, a regenerating container (1) storing a hygroscopic liquid (2) and a temperature detecting means (4) for detecting the temperature of the hygroscopic liquid (2) in the regenerating container (1). And a conversion means (13) for converting the temperature detected by the temperature detection means (4) into the concentration of the hygroscopic liquid (2).
A concentration measuring device for a hygroscopic liquid in a dehumidifying device, comprising:
（１）の外面に設置していることを特徴とする請求項１
の除湿装置の吸湿液体の濃度測定装置。2. The temperature detecting means (4) is installed on the outer surface of the regenerating container (1).
Concentration measuring device for moisture absorbing liquid of dehumidifying device.
上記温度検出手段（４）での検出温度の上昇率を求める
と共に、これに基づいて吸湿液体（２）の滞溜量を検知
する溶液量把握手段（１４）を設けたことを特徴とする
請求項１又は請求項２の除湿装置の吸湿液体の濃度測定
装置。3. When the hygroscopic liquid (2) is heated,
A solution amount ascertaining means (14) is provided for obtaining an increase rate of the temperature detected by the temperature detecting means (4) and detecting the accumulated amount of the hygroscopic liquid (2) on the basis thereof. A concentration measuring device for a hygroscopic liquid in the dehumidifying device according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6148436A JPH07313831A (en) | 1994-05-25 | 1994-05-25 | Concentration measuring device for moisture absorbing liquid of dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6148436A JPH07313831A (en) | 1994-05-25 | 1994-05-25 | Concentration measuring device for moisture absorbing liquid of dehumidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07313831A true JPH07313831A (en) | 1995-12-05 |
Family
ID=15452755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6148436A Pending JPH07313831A (en) | 1994-05-25 | 1994-05-25 | Concentration measuring device for moisture absorbing liquid of dehumidifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07313831A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010036093A (en) * | 2008-08-04 | 2010-02-18 | Dyna-Air Co Ltd | Humidity controller |
| JP2011092815A (en) * | 2009-10-27 | 2011-05-12 | Dyna Air Kk | Dehumidifier |
-
1994
- 1994-05-25 JP JP6148436A patent/JPH07313831A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010036093A (en) * | 2008-08-04 | 2010-02-18 | Dyna-Air Co Ltd | Humidity controller |
| JP2011092815A (en) * | 2009-10-27 | 2011-05-12 | Dyna Air Kk | Dehumidifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR850002226A (en) | Method and device for controlling cooking process of steam pressure cooker | |
| JP3877954B2 (en) | Automatic humidity step control thermal analyzer | |
| JPH07313831A (en) | Concentration measuring device for moisture absorbing liquid of dehumidifier | |
| JP2005315663A (en) | Water leak detection device, electronic device and water leak detection method | |
| JP3932426B2 (en) | Heating device and boiling detection method | |
| JPH0444529B2 (en) | ||
| JPH0238961B2 (en) | FUTSUTOKENSHUTSUSOCHI | |
| JP2907531B2 (en) | Rice cooker heating control method | |
| JPS61278750A (en) | Battery type gas detector | |
| JP2714812B2 (en) | Boiling point detection method | |
| JPH04193115A (en) | Heating control method for rice cooker | |
| CN111012173B (en) | Dry burning detection method and device, heating equipment and storage medium | |
| JP2864778B2 (en) | Electric water heater | |
| JPH05289757A (en) | Boiling detecting device | |
| JPH0586210B2 (en) | ||
| JPS5956629A (en) | Electric range | |
| JPS63290526A (en) | Automatic jar pot | |
| JPS6183925A (en) | Electronic thermometer | |
| JPH0350980B2 (en) | ||
| JPS63296708A (en) | Control apparatus of electric pot | |
| JPH051007B2 (en) | ||
| JPS59168823A (en) | Rice cooker with rice cooking power control function | |
| JPS59137019A (en) | Rice cooker | |
| JP2654798B2 (en) | Boiling point detection method | |
| JPH01254122A (en) | Electric kettle |