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JP4162759B2 - Power and heat management system for large-scale stores - Google Patents
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JP4162759B2 - Power and heat management system for large-scale stores - Google Patents

Power and heat management system for large-scale stores Download PDF

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Publication number
JP4162759B2
JP4162759B2 JP15577298A JP15577298A JP4162759B2 JP 4162759 B2 JP4162759 B2 JP 4162759B2 JP 15577298 A JP15577298 A JP 15577298A JP 15577298 A JP15577298 A JP 15577298A JP 4162759 B2 JP4162759 B2 JP 4162759B2
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Prior art keywords
heat load
power
refrigeration heat
refrigeration
refrigerator
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JP15577298A
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JPH11351638A (en
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克三 長谷川
雅範 神戸
岳 神村
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Mayekawa Manufacturing Co
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Mayekawa Manufacturing Co
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、大規模店舗の電力・熱量運用システムに関し、詳しくは、スーパーマーケット等の大規模店舗における冷凍・冷蔵系、空調系等の熱量負荷設備およびこれらの電力を効率よく運用するシステムに関する。
【0002】
【従来の技術】
スーパーマーケット等の大規模店舗において、電力消費を減らすために、空調熱源機器運転を電力需要が少なく電力料金の安い夜間のみに限定し、夜間に冷房用の冷水および氷を蓄熱しておき、昼間時はこの蓄熱だけを使用して冷房するようにした省エネルギーシステムが知られている。
【0003】
【発明が解決しようとする課題】
上記のような電力運用システムは、電力消費のピークをシフトさせて電力負荷平準化をはかるものであるが、このような平準化手段だけではまだ夜間と昼間の一般商用電力の消費のアンバランスを充分に減じることはできなかった。熱量負荷は、冷暖房機器のほか、冷凍ショウケース等の冷凍熱量負荷、冷蔵ショーケース等の冷蔵熱量負荷があり、これらの熱量負荷の運用にも配慮しないと充分な電力負荷の平準化が得られない。
【0004】
本発明は、このような問題に鑑みてなされたものであって、その目的とするところは、特に、夜間時は商用電源のみ、昼間時は商用電源を使用せず自家発電装置の電力のみを使用することを可能にし、電力負荷の平準化および省エネルギー効果の大きい大規模店舗の電力・熱量運用システムを提供することにある。
【0005】
【課題を解決するための手段】
前記の目的を達成するべく、本発明は、電力系統連系で商用電源と自家発電装置とを切換えて使用し、店舗内の冷凍熱量負荷および冷蔵熱量負荷および空調機を含む熱量負荷を運転する大規模店舗の電力・熱量運用システムにおいて、
前記電力系統連系はその出力側が、冷凍熱量負荷用冷凍機と冷蔵熱量負荷用冷凍機の夫々の系統とに分岐され、前記冷凍熱量負荷に冷凍熱量を供給する冷凍熱量負荷用冷凍機と、冷蔵熱量負荷用冷凍機から供給された冷媒によりダイナミックアイスを製氷する製氷機と、該製氷機より蓄氷タンクに蓄えられたイナミックアイスを冷蔵熱量負荷に供給する冷蔵負荷経路とを具え、
夜間時には電力系統連系で前記商用電源側に切り替えて、該商用電源の電力を利用して冷凍熱量負荷用冷凍機と冷蔵熱量負荷用冷凍機の双方の運転を行って、前記冷凍熱量負荷に冷凍熱量を供給し且つ蓄氷タンクにダイナミックアイスを蓄えながら、冷蔵熱量負荷に該ダイナミックアイスを供給し、
一方昼間時は電力系統連系で前記自家発電装置側に切り替えるとともに、前記冷蔵熱量負荷用冷凍機には電力を供給せず、
前記冷凍熱量負荷は昼間も冷凍熱量負荷用冷凍機で冷却された冷媒で冷却し、前記冷蔵熱量負荷は夜間時に冷蔵熱量負荷用冷凍機により蓄氷タンクに蓄氷した氷水を昼間時に使用して冷却することを特徴とする。
【0006】
前記自家発電装置は、発電機と、この発電機を駆動するガスエンジンと、発電機およびガスエンジンの熱を放出するラジェータとで構成され、該ラジェータの排熱を含む前記自家発電装置の排熱温水をデシカント空調機に供給し、昼間時は該デシカント空調機で冷房する。また、前記自家発電装置の排熱温水を吸着式冷凍機に供給し、該吸着式冷凍機からの冷水で昼間時に冷房する。
本発明では、夜間時には、買電にて業務用蓄熱契約の運転とし、昼間時においては、自家発電装置のみを利用した運転とする。夜間時においては、商用電源を使用して冷凍熱量負荷用冷凍機および冷蔵熱量負荷用冷凍機に電力を供給する。冷凍熱量負荷用冷凍機から冷ブラインが冷凍熱量負荷に供給される。また、冷蔵熱量負荷用冷凍機で製氷された氷を蓄氷タンクに蓄えて蓄冷すると共に、蓄氷タンクから氷水を冷蔵熱量負荷に供給して冷蔵熱量負荷を冷却する。
【0007】
また、冷蔵熱量負荷用冷凍機から空調機にブライン冷水が供給され、店舗空調ゾーンに冷風が供給される。昼間時においては前記自家発電装置の発電機から冷凍熱量負荷用冷凍機に電力が供給され、冷凍熱量負荷用冷凍機から冷ブラインが冷凍熱量負荷に供給されて冷却される。そして、夜間時に前記蓄氷タンクに蓄冷された氷水を、昼間時に前記冷蔵熱量負荷に供給することにより冷蔵熱量負荷を冷却するようにしている。
【0008】
【発明の実施の形態】
以下に図面を参照して本発明の実施の形態を例示的に説明する。ただし、この実施の形態に記載されている構造部品の寸法、材質、形状、相対位置などは特に特定的な記載がない限りは、この発明の範囲をそれのみに限定する趣旨ではなく、単なる説明例に過ぎない。
図1において、1は商用電源(買電)であって、この電源1から遮断機(POS)2を介して電力系統連系3に電力が供給されている。4は自家発電装置であって、発電機5と、この発電機5を駆動するガスエンジン6と、発電機5およびガスエンジン6の熱を放出するラジェータ7とで構成されている。発電機5の電力も電力系統連系3に供給される。
この電力系統連系3から中間期、冬期、一般電力8の系統と、冷凍熱量負荷用冷凍機9および冷蔵熱量負荷用冷凍機10の系統とに分岐され、電力系統連系3で各系統に切換えできるようになっている。
【0009】
前記冷凍熱量負荷用冷凍機9から管路P1を介して冷凍熱量負荷、図示の例では冷凍ショーケース17にブラインが供給され、−20°Cに冷凍される。また、冷蔵熱量負荷用冷凍機10から管路P5を介して冷媒がダイナミックアイス製氷機11に供給され、得られた氷が蓄氷タンク12に蓄えられる。蓄氷タンク12から氷混合水が管路P7を介して冷蔵熱量負荷、図示の例では冷蔵ショーケース18、19に供給され、0〜2°Cに冷却される。
【0010】
夜間に消費する電力は、電力会社の商用電源1からの電力が使用され、この電力で冷凍熱量負荷用冷凍機9、冷蔵熱量負荷用冷凍機10およびその他の負荷の運転が行われるようになっている。
自家発電装置4のラジェータ7の排熱は管路P2から吸着式冷凍機13およびデシカント空調機14に供給される。
【0011】
吸着式冷凍機13は、冷媒蒸気を吸・脱着する吸着剤が充填された吸・脱着器と、この吸収剤から脱着された冷媒蒸気を凝縮させる凝縮器と、この凝縮器から流出した冷媒蒸気の流量を調節する流量調節弁と、この流量調節弁を経て流入する冷媒液を蒸発させる蒸発器とを備えており、蒸発器で蒸発した冷媒蒸気を上記吸着器に吸着させるようにしたもので、種々の形式のものが知られており、いずれの形式のものでもよい。
【0012】
次に、上記構成に基づいて動作を説明する。
夜間時(例えば22:00〜8:00)においては、買電にて業務用蓄熱契約の運転とし、昼間時(例えば8:00〜22:00)においては、自家発電装置4を利用した運転とする。この切換えは電力系統連系3で行われる。
先ず、夜間時の運転について述べる。上記夜間時においては、商用電源1を使用して冷凍熱量負荷用冷凍機9および冷蔵熱量負荷用冷凍機10に電力を供給する。冷凍熱量負荷用冷凍機9から管路P1を介して冷ブラインが冷凍ショウケース17に供給されて冷凍ショウケース17は冷却される。
【0013】
また、冷蔵熱量負荷用冷凍機10から冷媒がダイナミックアイス製氷機11に供給されて該ダイナミックアイス製氷機11で製氷され、これを蓄氷タンク12に蓄えて蓄冷すると共に、蓄氷タンク12から管路P7を介して氷水が冷蔵ショーケース18、19に供給されて冷蔵ショーケース18、19は冷却される。
【0014】
また、冷蔵熱量負荷用冷凍機10から管路P4を介して空調機15にブライン冷水が供給され、管路P6を介して吹出口20から店舗空調ゾーン21に冷風供給される。照明その他の一般電力も商用電源1でまかなわれる。
【0015】
次に、昼間時の運転について述べる。昼間時において、商用電源1を使用せず自家発電装置4のみ使用するように電力系統連系3を切換える。自家発電装置4の発電機5から、同様に冷凍熱量負荷用冷凍機9に電力が供給され、冷凍熱量負荷用冷凍機9から管路P1を介して冷ブラインが冷凍ショウケース17に供給されて冷凍ショウケース17は冷却される。そして、夜間時に蓄氷タンク12に蓄冷された氷水を管路P7を介して冷蔵ショーケース18、19に供給することにより冷蔵ショーケース18、19を冷却する。
つまり、昼間時は冷蔵熱量負荷用冷凍機10には電力を供給せず、蓄氷タンク12の冷却水のみで冷蔵ショーケース18、19を運転する。
【0016】
また、昼間時においては、ラジェータ7の排熱は管路P2から吸着式冷凍機13およびデシカント空調機14に供給される。
吸着式冷凍機13からの冷却水は管路P3を介して前記空調機15に供給されて前述のように管路P6を介して吹出口20から店舗空調ゾーン21に冷風供給する。
【0017】
デシカント空調機14は、乾燥剤(デシカント)により湿度(潜熱)除去を行う形式の空調機であって、再生用温水コイル22、蒸発式冷却器23、除湿ロータ24、デシカントロータ25を備えている。処理側に取り入れた外気26は除湿ロータ24を通過する際に水分を除去され、冷却器23で温度が下がり、デシカント空調ゾーン27に給気される。
【0018】
一方、再生側では、店舗室内からの環気28を冷却器23を通過させて温度を下げ、デシカントロータ25で必要とする熱を再生用温水コイル22で加熱した後デシカントロータ25を通過させ、該デシカントロータ25内の水分を蒸発除去し、高温高湿空気となって大気中に排気29される。なお、このようなデシカント空調機は公知のものである。本発明においては、再生用温水コイル22に、自家発電装置4のラジェータ7の温水が供給されるようになっており、自家発電装置4の排熱を有効利用している。
【0019】
【発明の効果】
以上、詳述したように、本発明によれば、冷凍熱量負荷は昼夜間とも冷凍熱量負荷用冷凍機で冷却された冷ブラインで冷却し、冷蔵熱量負荷は夜間時に冷蔵熱量負荷用冷凍機により蓄氷タンクに蓄氷した氷水を昼間時に使用して冷却すると共に、該冷蔵熱量負荷用冷凍機からのブライン冷水で昼間時に冷房するようにしたことにより、夜間時には前記商用電源の電力のみとし、昼間時には商用電力を使用せず自家発電装置の電力のみで熱量負荷の運転を行うことが可能となり、電力負荷の平準化が達成できると共に、商用電力は電力需要が少なく電力料金も安い夜間時だけとすることで省エネルギーおよび省資源に大きな効果がある。
【図面の簡単な説明】
【図1】本発明の大規模店舗の電力・熱量運用システムのシステム図である。
【符号の説明】
1 商用電源
2 電力系統連系
4 自家発電装置
5 発電機
7 ラジェータ
9 冷凍熱量負荷用冷凍機
10 冷蔵熱量負荷用冷凍機
11 ダイナミックアイス製氷機
12 蓄氷タンク
13 吸着式冷凍機
14 デシカント空調機
15 空調機
17 冷凍ショウケース(冷凍熱量負荷)
18 冷蔵ショーケース(冷蔵熱量負荷)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric power / heat quantity operation system for large-scale stores, and more particularly, to a heat load facility such as a freezing / refrigeration system and an air conditioning system in a large-scale shop such as a supermarket, and a system for efficiently operating these electric powers.
[0002]
[Prior art]
In large-scale stores such as supermarkets, in order to reduce power consumption, air-conditioning heat source equipment operation is limited only to the night when electricity demand is low and electricity charges are low, and cold water and ice for cooling are stored in the nighttime. An energy-saving system that uses only this heat storage for cooling is known.
[0003]
[Problems to be solved by the invention]
The above power operation system shifts the peak of power consumption and achieves power load leveling, but such leveling means alone still does not balance the consumption of general commercial power during the night and daytime. It could not be reduced sufficiently. In addition to air conditioning equipment, there are refrigeration heat loads such as refrigeration showcases, and refrigeration heat loads such as refrigerated showcases. If the heat load is not considered, sufficient power load leveling can be obtained. Absent.
[0004]
The present invention has been made in view of such problems, and the object of the present invention is, in particular, only the commercial power source at night, and only the power of the private power generator without using the commercial power source during the daytime. It is intended to provide a power / heat quantity operation system for a large-scale store that can be used and has a large power load leveling and energy saving effect.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention switches between a commercial power source and a private power generator in an electric power grid connection , and operates a calorie load including a freezing calorie load, a refrigeration calorie load, and an air conditioner in a store. In a large-scale store's power and heat management system,
The output side of the power grid interconnection is branched into a refrigeration heat load refrigerator and a refrigeration heat load refrigerator, and a refrigeration heat load refrigerator that supplies refrigeration heat to the refrigeration heat load; An ice making machine that ices dynamic ice with a refrigerant supplied from a refrigerator for a refrigeration heat load, and a refrigeration load path for supplying the ice cream stored in the ice storage tank from the ice maker to the refrigeration heat load.
At night, switch to the commercial power source via the power grid, and use the power from the commercial power source to operate both the refrigeration heat load refrigerator and the refrigeration heat load refrigerator. While supplying freezing heat and storing dynamic ice in an ice storage tank, supplying the dynamic ice to a refrigeration heat load,
On the other hand, while switching to the private power generator side in the power grid connection during the daytime, the refrigeration heat load refrigerator is not supplied with power,
The refrigeration heat load is cooled by a refrigerant cooled by a refrigeration heat load refrigerator during the day, and the refrigeration heat load is ice water stored in an ice storage tank by a refrigeration heat load refrigerator at night. It is characterized by cooling .
[0006]
The in-house power generator includes a generator, a gas engine that drives the generator, and a radiator that releases heat from the generator and the gas engine, and includes exhaust heat of the in- house generator including the exhaust heat of the radiator. Hot water is supplied to the desiccant air conditioner and is cooled by the desiccant air conditioner during the daytime. Moreover, the exhaust heat warm water of the said private power generation apparatus is supplied to an adsorption-type refrigerator, and it cools at the daytime with the cold water from this adsorption-type refrigerator.
In the present invention, at the night time, the operation is a business heat storage contract by purchasing electricity, and at the daytime, the operation is performed using only the private power generator. At night, electric power is supplied to a freezing heat load refrigerator and a refrigeration heat load refrigerator using a commercial power source. Cold brine is supplied to the refrigeration heat load from the refrigeration heat load refrigerator. In addition, ice produced by the refrigerator for refrigeration heat load is stored in an ice storage tank for cold storage, and ice water is supplied from the ice storage tank to the refrigeration heat load to cool the refrigeration heat load.
[0007]
In addition, brine cold water is supplied from the refrigerator for refrigeration heat load to the air conditioner, and cold air is supplied to the store air conditioning zone. In the daytime, electric power is supplied from the generator of the private power generator to the refrigeration heat load refrigerator, and cold brine is supplied from the refrigeration heat load refrigerator to the refrigeration heat load and cooled. Then, the ice water stored in the ice storage tank at night is supplied to the refrigeration heat load at daytime to cool the refrigeration heat load.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be exemplarily described below with reference to the drawings. However, the dimensions, materials, shapes, relative positions, and the like of the structural parts described in this embodiment are not intended to limit the scope of the present invention only to specific descriptions unless otherwise specified. It is just an example.
In FIG. 1, reference numeral 1 denotes a commercial power source (power purchase), and power is supplied from the power source 1 to a power grid interconnection 3 via a circuit breaker (POS) 2. Reference numeral 4 denotes a private power generation apparatus, which includes a power generator 5, a gas engine 6 that drives the power generator 5, and a radiator 7 that releases heat from the power generator 5 and the gas engine 6. The electric power of the generator 5 is also supplied to the power grid interconnection 3.
This power system interconnection 3 is branched into an intermediate, winter, general power 8 system, a refrigeration heat load refrigerator 9 and a refrigeration heat load refrigerator 10 system. It can be switched.
[0009]
Brine is supplied from the refrigeration calorie load refrigerator 9 to the refrigeration calorie load, in the example shown in the figure, through the pipe P1, and is frozen at −20 ° C. Further, the refrigerant is supplied to the dynamic ice making machine 11 from the refrigeration heat load refrigerator 10 through the pipe P <b> 5, and the obtained ice is stored in the ice storage tank 12. Ice mixed water is supplied from the ice storage tank 12 to the refrigeration heat load, in the illustrated example, to the refrigerated showcases 18 and 19 via the pipe P7, and cooled to 0 to 2 ° C.
[0010]
The electric power consumed at night is the electric power from the commercial power source 1 of the electric power company, and the refrigeration heat load refrigerator 9, the refrigeration heat load refrigerator 10 and other loads are operated with this power. ing.
The exhaust heat of the radiator 7 of the private power generator 4 is supplied to the adsorption refrigeration machine 13 and the desiccant air conditioner 14 from the pipe P2.
[0011]
The adsorption refrigerator 13 includes an absorption / desorption device filled with an adsorbent that absorbs / desorbs refrigerant vapor, a condenser that condenses the refrigerant vapor desorbed from the absorbent, and refrigerant vapor that has flowed out of the condenser. A flow rate adjusting valve for adjusting the flow rate of the refrigerant and an evaporator for evaporating the refrigerant liquid flowing in through the flow rate adjusting valve, and the adsorber absorbs the refrigerant vapor evaporated by the evaporator. Various types are known, and any type may be used.
[0012]
Next, the operation will be described based on the above configuration.
At nighttime (for example, 22:00 to 8:00), operation of a heat storage contract for business use is made by purchasing electricity, and during daytime (for example, 8:00 to 22:00), operation using the private power generator 4 is performed. And This switching is performed in the power system interconnection 3.
First, driving at night will be described. At nighttime, the commercial power source 1 is used to supply power to the refrigeration heat load refrigerator 9 and the refrigeration heat load refrigerator 10. Cold brine is supplied to the freezing showcase 17 from the freezing heat quantity load refrigerator 9 via the pipe line P1, and the freezing showcase 17 is cooled.
[0013]
In addition, the refrigerant is supplied from the refrigeration heat load refrigerator 10 to the dynamic ice ice making machine 11 and is made by the dynamic ice making machine 11, and the ice is stored in the ice storage tank 12 for cold storage, and the ice storage tank 12 is connected to the pipe. Ice water is supplied to the refrigerated showcases 18 and 19 via the path P7, and the refrigerated showcases 18 and 19 are cooled.
[0014]
Further, brine cold water is supplied from the refrigerator 10 for refrigeration heat load via the pipe P4 to the air conditioner 15, and cold air is supplied from the outlet 20 to the store air-conditioning zone 21 via the pipe P6. Lighting and other general power is also provided by the commercial power source 1.
[0015]
Next, the daytime driving will be described. At daytime, the power grid interconnection 3 is switched so that only the private power generator 4 is used without using the commercial power source 1. Similarly, electric power is supplied from the generator 5 of the private power generator 4 to the refrigeration heat load refrigerator 9, and cold brine is supplied from the refrigeration heat load refrigerator 9 to the refrigeration showcase 17 via the pipe line P <b> 1. The frozen showcase 17 is cooled. Then, the refrigerated showcases 18 and 19 are cooled by supplying ice water stored in the ice storage tank 12 at night to the refrigerated showcases 18 and 19 through the pipe P7.
That is, during the daytime, power is not supplied to the refrigerator 10 for refrigeration heat load, and the refrigerated showcases 18 and 19 are operated using only the cooling water in the ice storage tank 12.
[0016]
Further, at daytime, the exhaust heat of the radiator 7 is supplied to the adsorption refrigerator 13 and the desiccant air conditioner 14 from the pipe P2.
Cooling water from the adsorption refrigeration machine 13 is supplied to the air conditioner 15 through the pipe line P3, and is supplied with cold air from the outlet 20 to the store air conditioning zone 21 through the pipe line P6 as described above.
[0017]
The desiccant air conditioner 14 is a type of air conditioner that removes humidity (latent heat) with a desiccant (desiccant), and includes a regenerating hot water coil 22, an evaporative cooler 23, a dehumidifying rotor 24, and a desiccant rotor 25. . Moisture is removed from the outside air 26 taken into the processing side when passing through the dehumidifying rotor 24, the temperature is lowered by the cooler 23, and the air is supplied to the desiccant air conditioning zone 27.
[0018]
On the other hand, on the regeneration side, the atmosphere 28 from the store room is passed through the cooler 23 to lower the temperature, the heat required by the desiccant rotor 25 is heated by the regenerating hot water coil 22, and then passed through the desiccant rotor 25. The moisture in the desiccant rotor 25 is removed by evaporation, and the high-temperature and high-humidity air is exhausted 29 into the atmosphere. Such a desiccant air conditioner is a known one. In the present invention, the warm water of the radiator 7 of the private power generator 4 is supplied to the regeneration hot water coil 22, and the exhaust heat of the private power generator 4 is effectively used.
[0019]
【The invention's effect】
As described above in detail, according to the present invention, the refrigeration heat load is cooled by cold brine cooled by the refrigeration heat load refrigerator both day and night, and the refrigeration heat load is reduced by the refrigeration heat load refrigerator at night. The ice water stored in the ice storage tank is cooled by using the cold water at daytime and cooled by the brine cold water from the refrigerator for refrigeration heat load at daytime. In the daytime, it is possible to operate the calorie load only with the power of the private power generator without using commercial power, and leveling of the power load can be achieved. This has a great effect on energy saving and resource saving.
[Brief description of the drawings]
FIG. 1 is a system diagram of a power / heat quantity operation system for a large-scale store according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Commercial power supply 2 Power grid connection 4 Private power generator 5 Generator 7 Radiator 9 Refrigeration heat load refrigerator 10 Refrigeration heat load refrigerator 11 Dynamic ice ice making machine 12 Ice storage tank 13 Adsorption type refrigerator 14 Desiccant air conditioner 15 Air conditioner 17 Refrigeration showcase (refrigeration heat load)
18 Refrigerated showcase (refrigerated heat load)

Claims (3)

電力系統連系で商用電源と自家発電装置とを切換えて使用し、店舗内の冷凍熱量負荷および冷蔵熱量負荷および空調機を含む熱量負荷を運転する大規模店舗の電力・熱量運用システムにおいて、
前記電力系統連系はその出力側が、冷凍熱量負荷用冷凍機と冷蔵熱量負荷用冷凍機の夫々の系統とに分岐され、前記冷凍熱量負荷に冷凍熱量を供給する冷凍熱量負荷用冷凍機と、冷蔵熱量負荷用冷凍機から供給された冷媒によりダイナミックアイスを製氷する製氷機と、該製氷機より蓄氷タンクに蓄えられたイナミックアイスを冷蔵熱量負荷に供給する冷蔵負荷経路とを具え、
夜間時には電力系統連系で前記商用電源側に切り替えて、該商用電源の電力を利用して冷凍熱量負荷用冷凍機と冷蔵熱量負荷用冷凍機の双方の運転を行って、前記冷凍熱量負荷に冷凍熱量を供給し且つ蓄氷タンクにダイナミックアイスを蓄えながら、冷蔵熱量負荷に該ダイナミックアイスを供給し、
一方昼間時は電力系統連系で前記自家発電装置側に切り替えるとともに、前記冷蔵熱量負荷用冷凍機には電力を供給せず、
前記冷凍熱量負荷は昼間も冷凍熱量負荷用冷凍機で冷却された冷媒で冷却し、前記冷蔵熱量負荷は夜間時に冷蔵熱量負荷用冷凍機により蓄氷タンクに蓄氷した氷水を昼間時に使用して冷却することを特徴とする大規模店舗の電力・熱量運用システム。
Use switching between the commercial power supply and the private power generation equipment in a power system interconnection, in a large-scale store electric power and heat production system for operating the heat load including a refrigeration heat load and refrigeration heat load and the air conditioning machines in the store,
The output side of the power grid interconnection is branched into a refrigeration heat load refrigerator and a refrigeration heat load refrigerator, and a refrigeration heat load refrigerator that supplies refrigeration heat to the refrigeration heat load; An ice making machine that ices dynamic ice with a refrigerant supplied from a refrigerator for a refrigeration heat load, and a refrigeration load path for supplying the ice cream stored in the ice storage tank from the ice maker to the refrigeration heat load.
At night, switch to the commercial power source via the power grid, and use the power from the commercial power source to operate both the refrigeration heat load refrigerator and the refrigeration heat load refrigerator. While supplying freezing heat and storing dynamic ice in an ice storage tank, supplying the dynamic ice to a refrigeration heat load,
On the other hand, while switching to the private power generator side in the power grid connection during the daytime, the refrigeration heat load refrigerator is not supplied with power,
The refrigeration heat load is cooled by a refrigerant cooled by a refrigeration heat load refrigerator during the day, and the refrigeration heat load is ice water stored in an ice storage tank by a refrigeration heat load refrigerator at night. A large-scale store power / heat quantity operation system characterized by cooling .
前記自家発電装置は、発電機と、この発電機を駆動するガスエンジンと、発電機およびガスエンジンの熱を放出するラジェータとで構成され、該ラジェータの排熱を含む前記自家発電装置の排熱温水をデシカント空調機に供給し、昼間時は該デシカント空調機で冷房することを特徴とする請求項1記載の大規模店舗の電力・熱量運用システム。 The in-house power generator includes a generator, a gas engine that drives the generator, and a radiator that releases heat from the generator and the gas engine, and includes exhaust heat of the in- house generator including the exhaust heat of the radiator. 2. The power / heat quantity operation system for a large-scale store according to claim 1, wherein hot water is supplied to the desiccant air conditioner and is cooled by the desiccant air conditioner during the daytime. 前記自家発電装置の排熱温水を吸着式冷凍機に供給し、該吸着式冷凍機からの冷水で昼間時に冷房するようにしたことを特徴とする請求項1または2記載の大規模店舗の電力・熱量運用システム。  3. The electric power of a large-scale store according to claim 1 or 2, wherein the hot water discharged from the private power generator is supplied to an adsorption refrigeration machine and is cooled in the daytime with cold water from the adsorption chiller. -Calorific value operation system.
JP15577298A 1998-06-04 1998-06-04 Power and heat management system for large-scale stores Expired - Fee Related JP4162759B2 (en)

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