Mayekawa Mfg. Co., Ltd.

Youichi Kawazu

Makoto Sano

Choiku Yoshikawa

Junji Matsuda

Katsumi Fujima

Kuniaki Kawamura

Takanori Kudo

Syuji Fukano

Kazuyoshi Sato

Tooru Saitou

To realize a COheat pump system in which reduction in coefficient of performance of heat pump cycle is prevented by maintaining the temperature of the water supplied to the gas cooler of the COheat pump below a certain temperature and raising heat source side temperature in the evaporator, and which has functions to supply a heat source not only to hot water supplying equipment but also to supply a heat source or coolness source to air conditioning equipment or others, the system comprises a low temperature water tank, a high temperature water tankfor storing high temperature water heated in a gas cooler, pipingfor supplying the high temperature water to hot water supplying equipment and room heating equipment respectively, a first heat exchangerin which brine (water) for supplying latent heat of vaporization of COrefrigerant to the refrigerant in the evaporatorexchanges heat with heat giving fluid (fluid from which heat is withdrawn), a second heat exchanger located upstream of the first heat exchanger to cool the high temperature water after it is used as a heat source for the room heating equipment (therefore the temperature is already not so high) by heat exchange with the heat receiving fluid, piping for introducing the water cooled in the second heat exchanger to the low temperature water tank, and a low temperature water supply means

[object Object]

The object of the invention is to provide a thermal complementary (combination of heat supply and heat discharge) system which can complement heat without the restriction of area of a region to be supplied with heat. An endless multiplex helical loop is formed to complement the heat produced in a region such as plants and regional facilities on a reciprocal basis, and the water is not circulated forcibly but achieves heat transfer in the helical loop. Liquid or slurry-like water is sealed in the annular endless channel (endless loop) without forcibly circulated. Therefore, loop diameter of the annular endless channel, that means the area of the region, is not limited. The water forms temperature zones in the endless helical loop, the temperature being different per each component loop. Distributed cryogenic sources and thermal sources are thermally connected to said multiplex helical loop so that heat (i.e. water) can be taken in or discharged to or from said cryogenic or thermal sources. As the water needs not be forcibly circulated, the power for forcibly circulating the water is eliminated resulting in reduced running cost. Refrigerating apparatuses, heat source apparatuses, etc. distributed in the region are effectively utilized and also central control of energy supply through the multiplex helical loops is made possible.

Inter-region thermal complementary system by distributed cryogenic and thermal devices

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Higashihiroshima, Japan

Youichi Kawazu