Host machine of air cooling and water cooling type cold-hot water air conditioner

Abstract

The invention discloses a host machine of an air cooling and water cooling type cold and hot water air conditioner, comprising a compressor, a four-way valve, an electromagnetic valve, a double-pipe heat exchanger, a fin type heat exchanger, a one-way valve, a liquid reservoir, an electronic expansion valve, an enthalpy increasing plate exchange unit, a plate exchange unit and an air distributing member, wherein the four-way valve is arranged between the compressor and the air distributing member; the other end of the four-way valve is connected with the plate exchange unit; the other end of the plate exchange unit is connected together with the fin type heat exchanger and the double-pipe heat exchanger through the electromagnetic valve respectively; a one-way valve assembly is further disposed between the fin type heat exchanger and the plate exchange unit; and the one-way valve assembly is connected with the liquid reservoir and the enthalpy increasing plate exchange unit. The host machine of the air cooling and water cooling type cold-hot water air conditioner disclosed by the invention can satisfy different demands of users; in addition, a modular design has the advantages of high precision, high efficiency, high reliability, compact structure, flexible use, convenient operation, and the like.

Description

Technical field [0001] The invention relates to cold and heat source equipment in air conditioning, cooling and heating. Background technique [0002] In the air conditioning cold and heat source technology, the outdoor side of the air conditioner produced by the prior art can only operate in a single cooling mode, which cannot keep the whole machine running efficiently in winter and summer. That is, the energy efficiency ratio of the water-cooled unit is higher than that of the air-cooled unit during cooling operation, but the outdoor side can only operate in the cooling mode in the water-cooled mode, and cannot operate in the heating mode in the winter; the air-cooled unit can only operate in the air-cooled mode. Under low temperature conditions, the energy efficiency ratio of operation is not high, and the energy efficiency ratio is extremely low when the heating conditions are operated in a low temperature environment, and it can not even start operation. [0003] Existing uni...

AI Technical Summary

Problems solved by technology

[0002] In the air-conditioning cold and heat source technology, the outside of the main air conditioner produced by the existing technology can only operate a single cooling mode, which cannot make the whole machine maintain efficient operation in winter and summer

That is, the energy efficiency ratio of the water-cooled unit is higher than that of the air-cooled unit during cooling operation, but the outdoor side can only operate in the cooling mode in the water-cooled mode, and cannot operate in the heating mode in winter; the air-cooled unit can only operate in the air-cooled mode for cooling working condition, but the energy efficiency ratio is not high, and the energy efficiency ratio is extremely low when the heating condition is operated in a low temperature environment, and it cannot even be started.

[0003] The cooling end of existing units can only adopt a single air-cooled or water-cooled mode, and the same unit cannot adopt both air-cooled and water-cooled modes, which makes many buildings have to adopt two sets of host systems with separate cold and heat sources, or Running high-power auxiliary electric heating for heating in winter

This increases the initial investment of the building's cooling and heating sources, and the operating cost is too high. Therefore, this air conditioning method has great limitations in areas that require air conditioning in summer and heating in winter.

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