Title:
water supply -- warming -- a system
Document Type and Number:
Japanese Patent JP6083509
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce power consumption by driving a compressor by using a steam engine, in a feedwater heating system applying a heat pump.SOLUTION: A heat pump 4 pumps up heat from a heat source fluid passing through an evaporator 16, and heats water passing through a condenser 14. Feedwater to a water supply tank 3 through a water supply passage 9 is successively passed through a waste heat recovery heat exchanger 22, a subcooler 17 and the condenser 14. The waste heat recovery heat exchanger 22 is an indirect heat exchanger between the feedwater to the water supply tank 3 through the water supply passage 9 and the heat source fluid after passing through the evaporator 16. The subcooler 17 is an indirect heat exchanger between the feedwater to the water supply tank 3 through the water supply passage 9 and a refrigerant from the condenser 14 to an expansion valve 15. The water in the water supply tank 3 is supplied to a boiler 2, and the steam from the boiler 2 is supplied to a steam engine 8 to drive a compressor 13.
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Inventors:
Kazuyuki Otani
Application Number:
JP2013041627A
Publication Date:
February 22, 2017
Filing Date:
March 04, 2013
Export Citation:
Assignee:
Miura Industry Co., Ltd.
International Classes:
F24H4/02; F22D1/18
Domestic Patent References:
| JP2006017448A | ||||
| JP2010025431A | ||||
| JP2011106693A | ||||
| JP2013210118A |
Foreign References:
| WO2012132605A1 | ||||
| WO2011142415A1 |
Attorney, Agent or Firm:
Koyama