JPH06347079A - Control system for completion of heat accumulation by heat accumulator - Google Patents
Control system for completion of heat accumulation by heat accumulatorInfo
- Publication number
- JPH06347079A JPH06347079A JP5135597A JP13559793A JPH06347079A JP H06347079 A JPH06347079 A JP H06347079A JP 5135597 A JP5135597 A JP 5135597A JP 13559793 A JP13559793 A JP 13559793A JP H06347079 A JPH06347079 A JP H06347079A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heat storage
- pressure
- temperature
- evaporator
- 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
Landscapes
- Other Air-Conditioning Systems (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、蓄熱装置に係り、特
に、夜間電力を利用して冷房蓄熱，暖房蓄熱を行い、こ
の熱を昼間の負荷に利用する蓄熱装置の蓄熱完了制御方
式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage device, and more particularly, to a heat storage completion control system for a heat storage device which uses nighttime electric power to perform cooling heat storage and heating heat storage and uses the heat for a daytime load.
【０００２】[0002]
【従来の技術】従来の氷蓄熱装置では、氷と水の密度差
を利用して水位を感知して蓄熱完了を制御していた。2. Description of the Related Art In a conventional ice heat storage device, the heat storage completion is controlled by sensing the water level by utilizing the density difference between ice and water.
【０００３】関連する装置としては、特開平1−200133
号公報に記載のある氷蓄熱装置がある。A related device is disclosed in Japanese Patent Laid-Open No. 1-200133.
There is an ice heat storage device described in the publication.
【０００４】[0004]
【発明が解決しようとする課題】上記従来技術では、水
位が想定値からずれた場合、たとえば水循環系統からの
漏洩により蓄熱槽内の水位が低下した場合などは、正常
に蓄熱完了制御を行えない。In the above prior art, when the water level deviates from the expected value, for example, when the water level in the heat storage tank decreases due to leakage from the water circulation system, the heat storage completion control cannot be normally performed. .
【０００５】本発明の目的は、熱源機の蒸発圧力または
温度，凝縮圧力または温度により蓄熱完了制御を行い、
安定した蓄熱制御を提供する事にある。An object of the present invention is to perform heat storage completion control by the evaporation pressure or temperature of the heat source machine, the condensation pressure or temperature,
It is to provide stable heat storage control.
【０００６】[0006]
【課題を解決するための手段】上記の問題点を解決する
ため、熱源機の蒸発部に圧力センサまたは温度センサを
設け、冷房蓄熱運転中に設定圧力または設定温度に達し
たら冷房蓄熱運転を終了する様にしたものである。In order to solve the above problems, a pressure sensor or a temperature sensor is provided in the evaporation part of the heat source device, and when the set pressure or the set temperature is reached during the cooling heat storage operation, the cooling heat storage operation is terminated. It is something that I have done.
【０００７】上記の問題点を解決するため、熱源機の凝
縮部に圧力センサまたは温度センサを設け、暖房蓄熱運
転中に設定圧力または設定温度に達したら暖房蓄熱運転
を終了する様にした。In order to solve the above-mentioned problems, a pressure sensor or a temperature sensor is provided in the condensing part of the heat source device, and the heating heat storage operation is terminated when the set pressure or temperature is reached during the heating heat storage operation.
【０００８】[0008]
【作用】圧力センサまたは温度センサは、熱源機の冷媒
の蒸発圧力または温度，凝縮圧力または温度を検出す
る。このデータを制御装置に送信する。冷房蓄熱の場合
は検出値が設定値以下の場合に蓄熱運転を終了する。暖
房蓄熱の場合は検出値が設定値以上の場合に蓄熱運転を
終了する。The pressure sensor or the temperature sensor detects the evaporation pressure or temperature, the condensation pressure or the temperature of the refrigerant of the heat source unit. This data is transmitted to the control device. In the case of cooling heat storage, the heat storage operation is terminated when the detected value is equal to or less than the set value. In the case of heating heat storage, the heat storage operation is terminated when the detected value is equal to or higher than the set value.
【０００９】[0009]
【実施例】以下、本発明の実施例を図１及び図２により
説明する。Embodiments of the present invention will be described below with reference to FIGS.
【００１０】図１は、この発明の冷房蓄熱運転の系統図
である。圧縮式冷凍サイクルは、ターボ形，スクリュー
形，往復形の圧縮機２，圧縮機２のガス出入口に連絡さ
れた四方切換え弁３，この四方切換え弁３に連結された
蒸発器５，凝縮器６，蒸発器５と凝縮器６の接続配管に
設けた膨張弁４とこれらを接続する配管から構成され
る。また、蒸発器５を内蔵する蓄熱槽１，蒸発器５の出
口に設けた圧力センサまたは温度センサ９により蓄熱サ
イクルを構成する。FIG. 1 is a system diagram of the cooling heat storage operation of the present invention. The compression refrigeration cycle includes a turbo type, a screw type, a reciprocating type compressor 2, a four-way switching valve 3 connected to the gas inlet and outlet of the compressor 2, an evaporator 5, a condenser 6 connected to the four-way switching valve 3. The expansion valve 4 provided in the connecting pipe of the evaporator 5 and the condenser 6 and the pipe connecting them. Further, the heat storage tank including the evaporator 5 and the pressure sensor or the temperature sensor 9 provided at the outlet of the evaporator 5 constitute a heat storage cycle.
【００１１】圧縮機２を出た高温高圧の冷媒ガスは、凝
縮器６に流入し外気に放熱して高温高圧の冷媒液にな
る。凝縮器６を出た冷媒液は膨張弁４により断熱膨張さ
れて低温低圧の冷媒液になり蒸発器５に流入する。冷媒
液は蓄熱槽１内の水から吸熱して蒸発する。この時の蒸
発熱により蓄熱槽１内の蒸発器５の伝熱管外表面に氷が
生成し、冷房蓄熱を行う。蒸発した冷媒はガスとなり圧
縮機２に再び流入し圧縮されて高温高圧の冷媒ガスにな
り再生凝縮器６に流入する。The high-temperature and high-pressure refrigerant gas discharged from the compressor 2 flows into the condenser 6 and radiates heat to the outside air to become a high-temperature and high-pressure refrigerant liquid. The refrigerant liquid discharged from the condenser 6 is adiabatically expanded by the expansion valve 4 to become a low temperature and low pressure refrigerant liquid and flows into the evaporator 5. The refrigerant liquid absorbs heat from the water in the heat storage tank 1 and evaporates. Due to the heat of evaporation at this time, ice is generated on the outer surface of the heat transfer tube of the evaporator 5 in the heat storage tank 1 to perform cooling heat storage. The evaporated refrigerant becomes a gas, flows into the compressor 2 again, is compressed, becomes a high-temperature and high-pressure refrigerant gas, and flows into the regeneration condenser 6.
【００１２】この様に冷房蓄熱を行っている内に蓄熱槽
１内の蒸発器５の伝熱管外表面の氷が成長してゆき、蒸
発器５の伝熱性能が低下し、蒸発圧力及び蒸発温度が低
下する。蒸発器５の出口に設けた圧力センサまたは温度
センサ９により圧力または温度を感知し、蓄熱完了の設
定圧力または温度以下の値に到達したら、冷房蓄熱運転
を終了する。While the cooling heat is being stored in this way, the ice on the outer surface of the heat transfer tube of the evaporator 5 in the heat storage tank 1 grows, the heat transfer performance of the evaporator 5 deteriorates, and the evaporation pressure and evaporation The temperature drops. The pressure or temperature is detected by the pressure sensor or the temperature sensor 9 provided at the outlet of the evaporator 5, and when it reaches a value equal to or lower than the preset pressure or temperature for completion of heat storage, the cooling heat storage operation is terminated.
【００１３】図２はこの発明の暖房蓄熱運転の系統図で
ある。圧縮式冷凍サイクルは、ターボ形，スクリュー
形，往復形の圧縮機２，圧縮機２のガス出入口に連絡さ
れた四方切換え弁３，四方切換え弁３に連絡された蒸発
器８，凝縮器７，蒸発器８と凝縮器７の接続配管に設け
た膨張弁４とこれらを接続する配管から構成される。ま
た、凝縮器７を内蔵する蓄熱槽１，凝縮器７の出口に設
けた圧力センサまたは温度センサ１０により蓄熱サイク
ルを構成する。FIG. 2 is a system diagram of the heating heat storage operation of the present invention. The compression refrigeration cycle includes a turbo type, a screw type, a reciprocating type compressor 2, a four-way switching valve 3 connected to the gas inlet and outlet of the compressor 2, an evaporator 8, a condenser 7 connected to the four-way switching valve 3, The expansion valve 4 provided in the connecting pipe of the evaporator 8 and the condenser 7 and the pipe connecting them. Further, the heat storage tank including the condenser 7 and the pressure sensor or the temperature sensor 10 provided at the outlet of the condenser 7 constitute a heat storage cycle.
【００１４】凝縮器７を出た高温高圧の冷媒液は膨張弁
４により断熱膨張されて低温低圧の冷媒液になり蒸発器
８に流入する。冷媒液は外気から吸熱して蒸発してガス
になる。この低温低圧の冷媒ガスは圧縮機２に流入し圧
縮されて高温高圧の冷媒ガスになり凝縮器７に流入す
る。凝縮器７で蓄熱槽１内の水に熱を与え凝縮して高温
高圧の冷媒液になり、再度、膨張弁４に流入する。この
時の凝縮熱により蓄熱槽１内の水を加熱して、暖房蓄熱
を行う。The high-temperature and high-pressure refrigerant liquid discharged from the condenser 7 is adiabatically expanded by the expansion valve 4 to become a low-temperature and low-pressure refrigerant liquid and flows into the evaporator 8. The refrigerant liquid absorbs heat from the outside air and evaporates into gas. The low-temperature low-pressure refrigerant gas flows into the compressor 2 and is compressed into high-temperature high-pressure refrigerant gas, which then flows into the condenser 7. The condenser 7 applies heat to the water in the heat storage tank 1 to condense it into a high-temperature high-pressure refrigerant liquid, which again flows into the expansion valve 4. The water in the heat storage tank 1 is heated by the condensation heat at this time to perform heating heat storage.
【００１５】この様に暖房蓄熱を行っている内に蓄熱槽
１内の水温が上昇してゆき、凝縮圧力及び凝縮温度が上
昇する。凝縮器７の出口に設けた圧力センサまたは温度
センサ１０により圧力または温度を感知し、蓄熱完了の
設定圧力または温度以上の値に到達したら、暖房蓄熱運
転を終了する。While the heat is being stored, the water temperature in the heat storage tank 1 rises, and the condensing pressure and the condensing temperature rise. The pressure sensor or the temperature sensor 10 provided at the outlet of the condenser 7 senses the pressure or temperature, and when the temperature reaches a value equal to or higher than the preset pressure or temperature for completion of heat storage, the heating heat storage operation is terminated.
【００１６】[0016]
【発明の効果】本発明によれば、熱源機の圧縮式冷凍サ
イクルの蒸発圧力または凝縮圧力により蓄熱完了制御を
行うので、蓄熱槽内の水位が変動しても、安定した蓄熱
制御を行うことができる。According to the present invention, since the heat storage completion control is performed by the evaporation pressure or the condensation pressure of the compression type refrigeration cycle of the heat source machine, stable heat storage control can be performed even if the water level in the heat storage tank changes. You can
【図面の簡単な説明】[Brief description of drawings]
【図１】蓄熱装置の蓄熱完了制御方式の一実施例の系統
図。FIG. 1 is a system diagram of an embodiment of a heat storage completion control system of a heat storage device.
【図２】蓄熱装置の蓄熱完了制御方式の他の一実施例の
系統図。FIG. 2 is a system diagram of another embodiment of the heat storage completion control system of the heat storage device.
【符号の説明】 １…蓄熱槽、２…圧縮機、３…四方切替弁、４…膨張
弁、５…蒸発器、６…凝縮器、７…凝縮器、８…蒸発
器、９…圧力センサまたは温度センサ、１０…圧力セン
サまたは温度センサ。[Explanation of Codes] 1 ... Heat storage tank, 2 ... Compressor, 3 ... Four-way switching valve, 4 ... Expansion valve, 5 ... Evaporator, 6 ... Condenser, 7 ... Condenser, 8 ... Evaporator, 9 ... Pressure sensor Or temperature sensor, 10 ... Pressure sensor or temperature sensor.
Claims (1)
槽と、これらを制御する手段とを備え、蓄冷を夜間電力
を利用して行い、この熱を昼間の負荷に利用する蓄熱式
熱源装置において、冷房蓄熱の場合の蓄熱完了を熱源機
器の蒸発圧力または温度によって制御することを特徴と
する蓄熱装置の蓄熱完了制御方式。1. A heat storage type heat source comprising a heat source device, a heat storage tank connected to the heat source device, and a means for controlling these, wherein cold storage is performed by using nighttime electric power, and this heat is used as a daytime load. In the device, a heat storage completion control method for a heat storage device, wherein heat storage completion in the case of cooling heat storage is controlled by evaporation pressure or temperature of a heat source device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5135597A JPH06347079A (en) | 1993-06-07 | 1993-06-07 | Control system for completion of heat accumulation by heat accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5135597A JPH06347079A (en) | 1993-06-07 | 1993-06-07 | Control system for completion of heat accumulation by heat accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06347079A true JPH06347079A (en) | 1994-12-20 |
Family
ID=15155545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5135597A Pending JPH06347079A (en) | 1993-06-07 | 1993-06-07 | Control system for completion of heat accumulation by heat accumulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06347079A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006038276A (en) * | 2004-07-23 | 2006-02-09 | Hitachi Air Conditioning System Co Ltd | Ice thermal storage type air conditioner |
-
1993
- 1993-06-07 JP JP5135597A patent/JPH06347079A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006038276A (en) * | 2004-07-23 | 2006-02-09 | Hitachi Air Conditioning System Co Ltd | Ice thermal storage type air conditioner |
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