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Title:
DUAL HEAT PUMP HEATING AND COOLING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/179949
Kind Code:
A1
Abstract:
The present invention provides, in order to improve the stability and durability of products by enabling normal operation even if external air has an extremely low temperature, a dual heat pump heating and cooling apparatus comprising a low-temperature side refrigeration cycle and a high-temperature side refrigeration cycle and including a dual heat exchanger in which a low-temperature side condenser and a high-temperature side evaporator are coupled so as to exchange heat with each other, wherein: a high-temperature side compressor outlet end is provided so as to be alternately connected, by the control of an electronic valve, to either a high-temperature side hot water condenser disposed so as to exchange heat with a hot water line of a hot water tank or a high-temperature side defrosting and cooling condenser disposed so as to exchange heat with a low-temperature side outer evaporator; a low-temperature side outer evaporator outlet end is provided so as to be connected to a low-temperature side auxiliary evaporator inlet end disposed so as to exchange heat with a high-temperature side auxiliary condenser; and a high-temperature side hot water condenser outlet end is controlled by the electronic valve so as to be connected to a high-temperature side evaporator inlet end by selectively passing through the high-temperature side auxiliary condenser according to the temperature of external air of the low-temperature side outer evaporator.

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Inventors:
LEE DO GYU (KR)
Application Number:
KR2017/004073
Publication Date:
October 19, 2017
Filing Date:
April 14, 2017
Export Citation:
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Assignee:
SINWOO TOTAL ENERGY CO LTD (KR)
International Classes:
F25B13/00; F25B30/02; F25B39/02; F25B39/04; F25B41/04; F25B49/00
Foreign References:
KR101262927B12013-05-13
KR20140112928A2014-09-24
JP2009264718A2009-11-12
KR100639104B12006-10-27
KR20120139022A2012-12-27
Attorney, Agent or Firm:
JO, CHI HOON (KR)
조치훈 (KR)
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