A kind of intelligent fresh air unit with double plate and double cold source

Abstract

The invention relates to a double-plate and double-cold-source intelligent air refresher unit. The double-plate and double-cold-source intelligent air refresher unit comprises a plate type heat exchange unit, a heat pump circulating unit and a spraying unit; the plate type heat exchange unit includes a first plate heat exchanger and a second plate heat exchanger arranged side by side from left to right; the heat pump circulating unit includes a compressor, a cooling condenser, a reheat condenser, an expansion valve and an evaporator; and the spraying unit includes a spraying device, a water collecting tank and a circulating pump. The double-plate and double-cold-source intelligent air refresher unit further comprises a surface cooler; outdoor fresh air reaches an indoor passage, provided with a fresh air-air supply way, after passing through an air supply channel of the first plate heat exchanger, an air supply channel of the second plate heat exchanger, the surface cooler, the evaporator and the reheat condenser in sequence; and indoor returned air is exhausted out of an outdoor passage, provided with a returned air-exhaust air way, after passing through a returned air channel of the second plate heat exchanger, a returned air channel of the first plate heat exchanger and the cooling condenser in sequence. The double-plate and double-cold-source intelligent air refresher unit has the advantages of simple structure, complete functions, stable operation, low cost and high energy-efficiency ratio, and can realize year-round high-efficiency and low-energy-consumption operation.

Description

technical field [0001] The invention relates to building energy-saving or air-conditioning equipment, in particular to a double-plate double-cooling-source fresh air unit that can operate with high efficiency and low energy consumption throughout the year. Background technique [0002] In the field of building energy saving and air conditioning, it is usually necessary to process fresh air to meet people's needs, that is, it is usually necessary to cool and dehumidify the outdoor air in summer, and it is usually necessary to heat and humidify the outdoor air in winter. The most commonly used refrigeration equipment in this field is mainly a heat pump, which is composed of compressors, evaporators, condensers, expansion valves and other components. During the cycle operation, the refrigerant is converted between the gaseous state and the liquid state through the compressor, expansion valve, etc. On the one hand, the refrigerant will release heat at the condenser, which will i...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of low heat recovery efficiency, high energy consumption, single function, low utilization rate and poor practicability of the traditional fresh air processing unit in the prior art, the present invention provides a double-plate double cold source intelligent fresh air unit, including A plate heat exchange unit, a heat pump circulation unit and a spray unit, wherein the plate heat exchange unit includes a first plate heat exchanger and a second plate heat exchanger arranged side by side from left to right, the first plate heat exchanger and the second plate heat exchanger are respectively provided with a horizontal air supply channel and a vertical return air channel, and the air supply channel and the return air channel are intersected; machine, radiator condenser, reheat condenser, expansion valve and evaporator; the spray unit includes a spray device and a water collection tank respectively arranged on the upper side and the lower side of the second plate heat exchanger, the spray device and the water collection tank The water tank is connected by a pipeline and a circulation pump is arranged on the pipeline; it also includes a surface cooler arranged on the right side of the second plate heater, and the liquid inlet and outlet of the surface cooler are connected to an external cold source or heat source connection;

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