IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0117141
(2005-04-28)
|
우선권정보 |
JP-2003-163303(2003-06-09); JP-2004-071781(2004-03-12) |
발명자
/ 주소 |
- Suzuki,Motohiro
- Terashima,Tetsuo
|
출원인 / 주소 |
- Matsushita Electric Industrial Co., Ltd.
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
5 |
초록
▼
The present invention provides a regenerative heat pump system including a heat pump cycle, first storage vessel for storing a heat storage material, heat exchange device between first refrigerant and heat storage material for heating and decomposing the heat storage material by heat from a refriger
The present invention provides a regenerative heat pump system including a heat pump cycle, first storage vessel for storing a heat storage material, heat exchange device between first refrigerant and heat storage material for heating and decomposing the heat storage material by heat from a refrigerant, and heat exchange device between second refrigerant and an other heat storage material for transferring heat from the separated heat storage material to the refrigerant. The system also includes second storage vessel for storing the decomposed heat storage material, and heat generating device for generating heat by recombining the heat storage material stored in the second storage vessel and for heating a heating medium. The heat exchange device between the first refrigerant and the heat storage material is also used as a radiator of the heat pump cycle, and the heat exchange device between second refrigerant and the other heat storage material is also used as at least a part of an evaporator of the heat pump cycle.
대표청구항
▼
What is claimed is: 1. A regenerative heat pump system comprising: a heat pump cycle having a compressor, a radiator for a refrigerant, an expansion valve, a evaporator for the refrigerant, and a refrigerant flow path; first storage means of storing a heat storage material; heat exchange means bet
What is claimed is: 1. A regenerative heat pump system comprising: a heat pump cycle having a compressor, a radiator for a refrigerant, an expansion valve, a evaporator for the refrigerant, and a refrigerant flow path; first storage means of storing a heat storage material; heat exchange means between first refrigerant and heat storage material of heating said heat storage material by heat transferred from said refrigerant so that said heat storage material is decomposed or some thereof is separated; heat exchange means between second refrigerant and heat storage material of transferring heat from at least one kind of said decomposed or separated heat storage material to said refrigerant; second storage means of storing at least one kind of said decomposed or separated heat storage material; and heat generating means of generating heat to heat a heating medium by recombining said heat storage material having been stored in said second storage means, wherein said heat exchange means between first refrigerant and heat storage material is also used as said radiator of the heat pump cycle, and heat exchange means between second refrigerant and heat storage material is also used as at least a part of said evaporator of the heat pump cycle. 2. The regenerative heat pump system according to claim 1, wherein said first storage means is integrated with said heat exchange means between first refrigerant and heat storage material and said heat generating means. 3. The regenerative heat pump system according to claim 1, wherein said second storage means is integrated with said heat exchange means between second refrigerant and heat storage material. 4. The regenerative heat pump system according to claim 3, wherein said second storage means has a storage material for occluding or adsorbing at least one kind of gas of said decomposed or separated heat storage material, and at the time of heat storage operation, said gas is stored in said second storage means by forming a compound or a complex with said storage material, and the heat generated at the time of formation of said complex is transferred to said refrigerant. 5. The regenerative heat pump system according to claim 1, wherein at the time of heat storage operation, at least one kind of gas of said decomposed or separated heat storage material is cooled by said heat exchange means between second refrigerant and heat storage material, and stored in said second storage means as a liquid. 6. The regenerative heat pump system according to claim 5, wherein said gas is a first gas; said regenerative heat pump system further comprises a third storage means having a storage material for occluding or adsorbing a second gas generated by the decomposition of said heat storage material, other than said first gas; and at the time of heat storage operation, said second gas is stored in said third storage means by forming a compound or a complex with said storage material. 7. The regenerative heat pump system according to claim 1, wherein said second storage means has a storage material for occluding or adsorbing at least one kind of gas of said separated heat storage material; at the time of heat storage operation, said gas is stored in said second storage means by forming a compound or a complex with said storage material. 8. The regenerative heat pump system according to claim 5, wherein said storage material is water and water adsorbing material; and said gas is water vapor. 9. The regenerative heat pump system according to claim 6, wherein said heat storage material is 2-propanol; said first gas is acetone; and said second gas is hydrogen. 10. The regenerative heat pump system according to claim 7, wherein said heat storage material is a hydrogen or a hydrogen occluding material for occluding hydrogen; and said gas is hydrogen. 11. The regenerative heat pump system according to claim 1, wherein said heat exchange means between second refrigerant and heat storage material is arranged on the most upstream side of said evaporator of the cycle. 12. The regenerative heat pump system according to claim 1, wherein said regenerative heat pump system further comprises heat recovery means of recovering heat from the refrigerant flowing between said radiator for the refrigerant and said expansion valve, and of transferring heat to the refrigerant flowing between said cooling means and said compressor. 13. The regenerative heat pump system according to claim 2, wherein said regenerative heat pump system further comprises a heating medium flow path in which said heating medium flows; said heat exchange means between first refrigerant and heat storage material has a plurality of heat transfer fins provided on the outside surface of said refrigerant flow path; said heat generating means has a plurality of heat transfer fins provided on the outside surface of said heating medium flow path, and said heat storage material is packed between said plurality of heat transfer fins provided on the outside surfaces of said refrigerant flow path and said heating medium flow path. 14. The regenerative heat pump system according to claim 13, wherein said heat storage material is of a spherical or pellet shape; and said first storage means has a high thermal conductivity material, which has higher thermal conductivity and a smaller diameter than said heat storage material and is mixed with said heat storage material, between said plurality of heat transfer fins. 15. The regenerative heat pump system according to claim 13, wherein said first storage means has a highly heat insulating material having lower thermal conductivity than said heat storage material on the outside surface; and at the time of heat utilization operation, said heating medium is heated by utilizing heat of said heat storage material. 16. The regenerative heat pump system according to claim 15, wherein the operation of said heat pump cycle is performed continuously even after the finish of heat storage operation to raise the temperature of said heat storage material. 17. The regenerative heat pump system according to claim 13, wherein at least some of said plurality of heat transfer fins provided on the outside surface of said refrigerant flow path and said plurality of heat transfer fins provided on the outside surface of said heating medium flow path are common to each other. 18. The regenerative heat pump system according to claim 17, wherein at the time of start of heat utilization operation, heat released from said radiator is directly transferred to said heating medium via said heat transfer fins by performing the operation of said heat pump cycle. 19. The regenerative heat pump system according to claim 17, wherein at the time of heat utilization operation, the operation of said heat pump cycle is performed by detecting that one kind of said decomposed or separated heat storage material, which is stored in said second storage means, becomes absent, so as to cause the heat released from said radiator to be directly transferred to said heating medium via said heat transfer fins. 20. The regenerative heat pump system according to claim 1, wherein said second storage means has heating means using solar heat, atmospheric heat, exhaust heat of city water or bath, or heat released from said heat pump cycle as a heat source; and at the time of heat utilization operation, one kind of said decomposed or separated heat storage material, which is stored in said second storage means, is heated and supplied to said heat generating means. 21. The regenerative heat pump system according to claim 1, wherein said second storage means has heating means using solar heat, atmospheric heat, exhaust heat of city water or bath, or heat released from said cycle as a heat source; at the time of finish of heat storage operation, said second storage means is heated so that heat is stored in one kind of said decomposed or separated heat storage material, which is stored in said second storage means, as sensible heat; and at the time of heat utilization operation, one kind of said heat storage material stored in said second storage means is supplied to said heat generating means with said sensible heat being used as a heat source. 22. The regenerative heat pump system according to claim 21, wherein electric power in a time zone in which power rates are low is used for the operation of said cycle.
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