JPH0784972B2 - Heat storage state detection device for ice heat storage equipment - Google Patents
Heat storage state detection device for ice heat storage equipmentInfo
- Publication number
- JPH0784972B2 JPH0784972B2 JP61265845A JP26584586A JPH0784972B2 JP H0784972 B2 JPH0784972 B2 JP H0784972B2 JP 61265845 A JP61265845 A JP 61265845A JP 26584586 A JP26584586 A JP 26584586A JP H0784972 B2 JPH0784972 B2 JP H0784972B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- ice
- refrigerant
- storage state
- state
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Landscapes
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、冷房等のための冷熱源として冷媒を固液混相
のシャーベット状態で氷蓄熱槽に貯留する氷蓄熱設備に
関し、詳しくは、その氷蓄熱槽の蓄熱状態を検出する装
置に関する。The present invention relates to an ice heat storage facility for storing a refrigerant in a solid-liquid mixed phase sherbet state in an ice heat storage tank as a cold heat source for cooling, etc. The present invention relates to a device for detecting the heat storage state of an ice heat storage tank.
蓄熱槽内において冷却コイルの周りに氷を成長堆積させ
る型式の氷蓄熱においては、成長する氷の厚みを検出す
ることにより蓄熱状態（蓄熱量等）を判定することがで
きるが、冷媒を固液混相のシャーベット状態で貯留する
型式の氷蓄熱においては、それができないことから、従
来、冷水蓄熱と同様に貯留冷媒の温度検出に基づき蓄熱
状態を判定したり、あるいは、冷媒の冷却固化に伴う体
積膨張を利用して貯留冷媒の液位検出に基づき貯留冷媒
における氷粒子の存在比を求めることで蓄熱状態を判定
するようにしていた（文献を示すことができない）。In the type of ice heat storage in which ice is grown and accumulated around the cooling coil in the heat storage tank, the heat storage state (heat storage amount, etc.) can be determined by detecting the thickness of the growing ice. In the type of ice heat storage that is stored in a mixed-phase sherbet state, it cannot be done, so conventionally, as with cold water heat storage, the heat storage state is determined based on the temperature detection of the stored refrigerant, or the volume accompanying cooling and solidification of the refrigerant The heat storage state has been determined by obtaining the abundance ratio of ice particles in the stored refrigerant based on the detection of the liquid level of the stored refrigerant using expansion (the literature cannot be shown).
しかし、いわゆる氷蓄熱は本来、固化潜熱を利用して蓄
熱するものであるから、温度検出に基づいた顕熱上の判
定では蓄熱状態を正確に判定できず、又、液位検出に基
づく判定では、液位検出そのものに液面の波上ち等の外
乱要素が多く検出誤差も大きいことから、やはり蓄熱状
態を安定的かつ正確に判定することが難しい問題があっ
た。However, since the so-called ice heat storage is originally to store heat by utilizing latent heat of solidification, the heat storage state cannot be accurately determined by the determination on sensible heat based on temperature detection, and the determination based on liquid level detection is not possible. However, since there are many disturbance factors such as ripples on the liquid level in the liquid level detection itself and the detection error is large, it is still difficult to determine the heat storage state stably and accurately.
本発明の目的は、冷媒が固液混相のシャーベット状態で
あることに適合させた合理的な手段により、氷蓄熱槽の
蓄熱状態を安定的かつ適確に判定できるようにする点に
ある。An object of the present invention is to make it possible to determine the heat storage state of the ice heat storage tank stably and accurately by a rational means adapted to the refrigerant being in a solid-liquid mixed phase sherbet state.
本発明による氷蓄熱設備における蓄熱状態検出装置の特
徴構成は、冷媒の固液混相のシャーベット状態で貯留す
る氷蓄熱槽における蓄熱状態を判定するための情報とし
て、貯留冷媒の透光度を検出する透光度検出手段を設け
たことにあり、その作用・効果は次の通りである。The characteristic configuration of the heat storage state detection device in the ice heat storage equipment according to the present invention is to detect the transparency of the stored refrigerant as information for determining the heat storage state in the ice heat storage tank that is stored in the solid-liquid mixed phase sherbet state. Since the light transmissivity detecting means is provided, the operation and effect thereof are as follows.
つまり、貯留冷媒における氷粒子の存在率が大きくなる
とその冷媒の透光度が低下することから、貯留冷媒の透
光度の大小を見ることにより、冷媒中の氷存在状態を把
握して氷蓄熱槽における蓄熱状態を判定することができ
る。In other words, as the presence ratio of ice particles in the stored refrigerant increases, the transparency of the refrigerant decreases, so by observing the size of the transparency of the stored refrigerant, it is possible to grasp the ice existence state in the refrigerant and store the ice heat. The heat storage state in the tank can be determined.
すなわち、氷粒子の存在率との相関で蓄熱状態を判定す
るから潜熱を含めて全熱的に蓄熱状態を判定でき、又、
透光度検出であれば液位検出ほど種々の大きな外乱を受
けること無く安定的な検出を実施でき、それらのことか
ら、固液混相シャーベット状態での氷蓄熱にうまく適合
させて氷蓄熱槽の蓄熱状態を安定的かつ適確に判定でき
るようになり、ひいては、この種の氷蓄熱を利用した冷
房システムの運転制御等において極めて有用かつ実用的
な蓄熱状態検出装置にできた。That is, since the heat storage state is determined by the correlation with the abundance of ice particles, the heat storage state can be determined totally including the latent heat.
With light transmission detection, stable detection can be carried out without being subject to various types of large disturbances such as liquid level detection, and from these facts, it is well adapted to ice heat storage in a solid-liquid mixed-phase sherbet state and the ice storage tank It has become possible to determine the heat storage state stably and accurately, and it has become a very useful and practical heat storage state detection device in the operation control of a cooling system using this type of ice heat storage.
次に本発明の実施例を図面に基づいて説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
第１図に示すように、圧縮機（１）、凝縮器（２）、膨
張弁（３）、及び、蒸発器としての製氷器（４）の順に
一次冷媒を循環させるヒートポンプ回路（５）を設け、
製氷器（４）と氷蓄熱槽（６）との二次冷媒の循環路
（７）で接続し、もって、ヒートポンプ回路（５）の運
転により製氷器（４）において循環二次冷媒を固液混相
のシャーベット状態にすると共に、そのシャーベッド状
の二次冷媒を氷蓄熱槽（６）に貯留して、冷房等を目的
とした冷熱蓄熱を行うようにしてある。As shown in FIG. 1, a heat pump circuit (5) for circulating a primary refrigerant in the order of a compressor (1), a condenser (2), an expansion valve (3), and an ice maker (4) as an evaporator is provided. Provided,
The ice maker (4) and the ice heat storage tank (6) are connected to each other through the secondary refrigerant circulation path (7), and the heat pump circuit (5) is operated to solidify the circulated secondary refrigerant in the ice maker (4). A sherbet state of a mixed phase is set, and the sherbet-shaped secondary refrigerant is stored in an ice heat storage tank (6) to perform cold heat storage for cooling or the like.
二次冷媒の循環路（７）において、氷蓄熱槽（６）の下
部に接続した液相二次冷媒取出側の往路（7a）に透光部
（８）を設け、そして、取出二次冷媒に対する透光度検
出手段として、透光部（８）に対し発光器（９）及び受
光器（10）を装備し、その受光器（10）の受光結果に基
づいて、取出二次冷媒の透光度を検出するようにしてあ
る。In the secondary refrigerant circulation path (7), a translucent part (8) is provided in the outward path (7a) on the liquid phase secondary refrigerant extraction side connected to the lower part of the ice heat storage tank (6), and the extracted secondary refrigerant is As a means for detecting the degree of transparency of the light, a light emitter (9) and a light receiver (10) are provided for the light transmitting portion (8), and the transparency of the extracted secondary refrigerant is determined based on the light reception result of the light receiver (10). It is designed to detect the light intensity.
つまり、氷蓄熱槽（６）への蓄熱が進んで液相二次冷媒
とともに氷粒子が往路（7a）から流出するようになると
取出二次冷媒の透光度が低下することを利用して、その
透光度の検出結果に基づき氷蓄熱槽（６）における蓄熱
状態（蓄熱量）を判定するようにしてある。In other words, by utilizing the fact that when the heat storage in the ice heat storage tank (6) proceeds and the ice particles flow out from the outward path (7a) together with the liquid-phase secondary refrigerant, the transparency of the extracted secondary refrigerant decreases. The heat storage state (heat storage amount) in the ice storage tank (6) is determined based on the detection result of the light transmission.
そして、ヒートポンプ回路（５）の自動運転制御構成と
して、透光度検出手段（９），（10）による検出透光度
が設定値より小となったときに制御装置（11）により圧
縮機（１）の運転を自動停止するようにし、もって、氷
蓄熱槽（６）における冷熱蓄熱量が上限に達したときの
ヒートポンプ回路（５）の運転停止を自動的に行わせる
ようにしてある。Then, as an automatic operation control configuration of the heat pump circuit (5), when the translucency detected by the translucency detecting means (9), (10) becomes smaller than a set value, the controller (11) causes the compressor ( The operation of 1) is automatically stopped so that the operation of the heat pump circuit (5) is automatically stopped when the cold heat storage amount in the ice heat storage tank (6) reaches the upper limit.
図中（12）は二次冷媒循環ポンプであり、又、（13）は
大きな氷粒子が製氷器（４）が侵入することを防止する
サクションストレーナである。In the figure, (12) is a secondary refrigerant circulation pump, and (13) is a suction strainer that prevents large ice particles from entering the ice maker (4).
次に本発明の別実施例を説明する。 Next, another embodiment of the present invention will be described.
氷蓄熱槽（６）からの取出冷媒に対する透光度検出に基
づき蓄熱状態を判定するに代えて、第２図に示すよう
に、透光度検出手段（９），（10）を氷蓄熱槽（６）本
体に付設し、槽内部の冷媒に対する直接の透光度検出に
基づき蓄熱状態を判定するようにしても良い。Instead of determining the heat storage state based on the detection of the light transmission of the refrigerant taken out from the ice heat storage tank (6), as shown in FIG. 2, the light transmission detection means (9) and (10) are provided. (6) It may be attached to the main body, and the heat storage state may be determined based on the direct light transmission detection with respect to the refrigerant inside the tank.
又、第３図に示すように、透光度検出手段（９），（1
0）の複数を氷蓄熱槽（６）に対して上下方向に並設
し、もって、ヒートポンプ回路（５）の能力制御等を目
的として氷蓄熱槽（６）を蓄熱状態を段階的に判定する
ようにしても良い。Further, as shown in FIG. 3, the translucency detecting means (9), (1
0) are arranged in parallel in the vertical direction with respect to the ice heat storage tank (6), and thus the heat storage state of the ice heat storage tank (6) is determined stepwise for the purpose of controlling the capacity of the heat pump circuit (5) and the like. You may do it.
透光度検出手段（９），（10）において、具体的検出形
態並びに検出構造は種々の改良が可能である。In the light transmissivity detecting means (9) and (10), various improvements can be made to the specific detection form and the detection structure.
検出透光度に基づいて実施する制御は圧縮機（１）の発
停に限定されるものでは無く、例えば、蓄熱冷熱消費側
における制御を検出透光度に基づいて実施する等、氷蓄
熱槽（６）における蓄熱状態に関連した種々の制御のた
めの情報として検出透光度を適用でき、又、検出透光度
を単に蓄熱状態の表示のためだけに用いる装置構成であ
っても良い。The control performed based on the detected light transmission is not limited to the start / stop of the compressor (1), and for example, the control on the heat storage cold heat consumption side is performed based on the detected light transmission, etc. The detected light transmittance can be applied as the information for various controls related to the heat storage state in (6), and the detected light transmittance may be used only for displaying the heat storage state.
冷媒は、水や各種水溶液に限定されるものでは無く、他
の種々の液剤であっても良い。The refrigerant is not limited to water and various aqueous solutions, and may be other various liquid agents.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.
第１図は本発明の実施例を示す系統図である。第２図及
び第３図は夫々、本発明の別実施例を示す構造図であ
る。 （６）……氷蓄熱槽、（９），（10）……透光度検出手
段。FIG. 1 is a system diagram showing an embodiment of the present invention. 2 and 3 are structural views showing another embodiment of the present invention. (6) ... Ice heat storage tank, (9), (10) ... Translucency detection means.
Claims (1)
熱槽（６）に貯留する氷蓄熱設備において、前記氷蓄熱
槽（６）における蓄熱状態を判定するための情報とし
て、貯留冷媒の透光度を検出する透光度検出手段
（９），（10）を設けた氷蓄熱設備の蓄熱状態検出装
置。1. An ice heat storage facility for storing a refrigerant in a solid-liquid mixed phase sherbet state in an ice heat storage tank (6) as information for determining a heat storage state in the ice heat storage tank (6). A heat storage state detection device for ice heat storage equipment provided with translucency detection means (9), (10) for detecting light intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61265845A JPH0784972B2 (en) | 1986-11-08 | 1986-11-08 | Heat storage state detection device for ice heat storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61265845A JPH0784972B2 (en) | 1986-11-08 | 1986-11-08 | Heat storage state detection device for ice heat storage equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63123968A JPS63123968A (en) | 1988-05-27 |
| JPH0784972B2 true JPH0784972B2 (en) | 1995-09-13 |
Family
ID=17422868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61265845A Expired - Fee Related JPH0784972B2 (en) | 1986-11-08 | 1986-11-08 | Heat storage state detection device for ice heat storage equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0784972B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03291480A (en) * | 1990-04-06 | 1991-12-20 | Mitsubishi Electric Corp | Ice production amount detector |
| JP2012002469A (en) * | 2010-06-21 | 2012-01-05 | Sanden Corp | Heat accumulating device |
-
1986
- 1986-11-08 JP JP61265845A patent/JPH0784972B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63123968A (en) | 1988-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |