Two-source heat pump multi-function machine

Abstract

The invention discloses an air and water two-source waste heat recovery type heat pump multi-function machine. The two-source heat pump multi-function machine mainly comprises a compressor, a four-way valve, an air heat exchanger, a water heat exchanger, a liquid storage device, a restrictor and a gas-liquid separator. The two-source heat pump multi-function machine is characterized by further comprising a three-way valve, a hot water heat exchanger and a rectifying mechanism comprising first, second, third and fourth check valves or a second four-way valve, wherein the gas inlet, the first and second gas outlets of the three-way valve are respectively connected with the gas outlet of the compressor, the gas inlet of the hot water heat exchanger and the gas inlet of the four-way valve; the second, third and fourth interfaces of the four-way valve are respectively connected with gas inlets of the water heat exchanger, the air heat exchanger and the gas-liquid separator; the refrigerant outlet of the hot water exchanger is connected with the inlet of the liquid storage device; the first, second, third and fourth interfaces of the rectifying mechanism or the second four-way valve are respectively connected with the outlet of the restrictor, the lower port of the air heat exchanger, the lower port of the water heat exchanger and the inlet of the liquid storage device; and the outlet of the liquid storage device is connected with the inlet of the restrictor to form a refrigerant loop. According to the invention, four functions of refrigerating and water heating, water heating, refrigerating, and warming are achieved by four separate circulations, and are automatically shifted; and water inlet amount is controlled by a variable frequency pump, so as to discharge water at a constant temperature of 55 DEG C in a directly-heated manner.

Description

Technical field: [0001] The invention relates to the technical field of heat pump water heaters. Background technique: [0002] The heat pump water heater is a kind of heat energy absorbed from the air or water absorbed from the environment through the compression of the refrigerant, condensation heat release, throttling expansion, and evaporation heat absorption, which is upgraded to higher temperature heat energy for domestic hot water or water supply. Heating has obvious energy-saving effects. Generally, the energy efficiency ratio of heat pump water heaters is 3-4. Two-source heat pump is a kind of equipment that can absorb heat energy from different heat sources for heating. Better results. The applicant has applied for multiple related patents. For example, simple, efficient and reliable heating and cooling air-conditioning water heaters (201010215579.5, 201020245130.9), a dual heat source heat pump water heater with a very simple refrigeration circuit (200910181300...

AI Technical Summary

Problems solved by technology

Because the power of commercial cold and hot water units is relatively large, the air-source heat exchanger and the air-collecting pipe are placed vertically. "Hot water device" and other patented technologies, the structure of the gas collecting pipe placed upright will affect the refrigerant distribution of the cycle of making hot water while cooling the water of the unit

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