用双四通阀切换的双热源热泵热水一体机

Dual-heat source heat pump water heating all-in-one machine employing dual four-way valves for switching

Abstract

The invention discloses a dual-heat source heat pump water heating all-in-one machine employing dual four-way valves for switching. Three technical schemes are provided. The all-in-one machine is characterized in that two four-way valves are used for a refrigerant loop according to each technical scheme; and a compressor, a hot water heat exchanger, a water source heat exchanger, a wind source heat exchanger, a throttler and the like are connected into the dual-heat source heat pump water heating all-in-one machine with a wind-source or water-source water heating sub-cycle, a dual-source water heating sub-cycle and a defrosting sub-cycle. Firstly, according to a loop with a wind-source and dual-source serial sub-cycle, first to fourth joints of a first four-way valve are connected with an outlet of the compressor, an inlet of the hot water heat exchanger, an upper opening of the wind source heat exchanger and an inlet of a gas-liquid separator respectively; an outlet of the hot water heat exchanger is connected in series with a liquid storage device and a filter, and then is connected with an inlet of the throttler; first to fourth joints of a second four-way valve are connected with an outlet of the throttler, a lower opening of the wind source heat exchanger, a lower opening of the water source heat exchanger and an upper opening of the water source heat exchanger respectively; and an outlet of the gas-liquid separator is connected with an inlet of the compressor. Secondly, a water-source and dual-source serial sub-cycle is provided. Thirdly, a wind-source and dual-source parallel sub-cycle is provided.
本发明的用双四通阀切换的双源热泵热水一体机,有三种,其特征是:制冷剂回路都用两个四通阀,把压缩机、热水换热器、水源和风源换热器,节流器等,连接构成有风源或水源、双源制热水和除霜3个分循环的双源热泵热水一体机;其一,有风源、双源串联分循环的回路是:第一四通阀的第一、二、三、四接口,分别与压缩机出口、热水换热器进口、风源换热器上口、气液分离器进口连接;热水换热器出口,串接储液器、过滤器后,与节流器进口连接;第二四通阀的第一、二、三、四接口,分别与节流器出口、风源换热器下口、水源换热器下口、水源换热器上口连接;气液分离器出口与压缩机进口连接;其二,有水源、双源串联分循环;其三,有风源、双源并联分循环。

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    CN-103353169-BAugust 12, 2015江苏科技大学双热源船用热泵热水器及其控制方法
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    CN-104566699-BJune 20, 2017海尔集团公司, 青岛海尔空调电子有限公司蓄能多联空调机组及其控制方法