Fresh air handling unit with internal circulation and heat recovery

Abstract

The invention relates to a fresh air handling unit with internal circulation and heat recovery. The fresh air handling unit comprises a shell, a first plate heat exchanger, a second plate heat exchanger, a compressor, a water-cooling condenser and an evaporator, the first plate heat exchanger and the second plate heat exchanger are arranged side by side, a first partitioning plate is arranged between the upper side of the right end of the first plate heat exchanger and the top wall of the shell, a second partitioning plate is arranged between the connecting position of the first plate heat exchanger and the second plate heat exchanger and the top wall of the shell, a third partitioning plate is arranged between the upper side of the left end of the second plate heat exchanger and the top wall of the shell, a fourth partitioning plate is arranged between the lower side of the left end of the second plate heat exchanger and the bottom wall of the shell, and a fifth partitioning plate is arranged between the lower side of the right end of the first plate heat exchanger and the right wall of the shell. A fresh air port and an air delivery port are formed in the top wall of the shell, an air-returning port and an air-discharging port are formed in the left side wall and right side wall of the shell, and the evaporator is arranged on the lower side of the second plate heat exchanger side by side. The fresh air handling unit has the advantages of being simple in structure and high in heat recovery rate and energy efficiency ratio, and can achieve intelligent control and low-energy-consumption operation.

Description

technical field [0001] The invention relates to an air conditioner, in particular to an internal circulation heat recovery fresh air unit which can operate with high efficiency and low energy consumption throughout the year. Background technique [0002] With the development of economy and society, people's requirements for living environment are getting higher and higher, which promotes the rapid development of building energy saving and air conditioning equipment. Cooling and dehumidification treatment and heating and humidification of air in winter. The existing fresh air unit is mainly heat pump, which is composed of compressor, evaporator, water-cooled (air-cooled) condenser, expansion valve, reheater and other components. During summer operation, the refrigerant is converted between gaseous and liquid states through compressors, expansion valves, etc. On the one hand, the refrigerant releases heat at the water-cooled (air-cooled) condenser and discharges the heat thro...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low energy efficiency ratio, single function, poor environmental adaptability, unfavorable intelligent control and energy saving in the fresh air unit in the prior art, the present invention provides an internal circulation heat recovery fresh air unit, which includes a shell, a second A plate heat exchanger, a second plate heat exchanger, a compressor, a water-cooled condenser and an evaporator, the first plate heat exchanger and the second plate heat exchanger are provided with vertical air ducts and horizontal air ducts And the two are arranged side by side in the middle of the inner cavity of the shell, and the first partition plate is arranged between the upper right side of the first plate heat exchanger and the top wall of the shell, and the first plate heat exchanger and the second plate heat exchanger There is a second partition between the joint of the second plate heat exchanger and the top wall of the shell, and a third partition between the upper left end of the second plate heat exchanger and the top wall of the shell, and the lower left end of the second plate heat exchanger A fourth partition is provided between the bottom wall of the shell, and a fifth partition is provided between the lower side of the right end of the first plate heat exchanger and the right side wall of the shell; the shell between the first partition and the second partition A fresh air outlet is provided on the top wall of the body, an air supply port is provided on the top wall of the housing between the second partition and the third partition, and the upper part of the left side wall and the upper right side wall of the housing are respectively equipped with a return air outlet and an exhaust air outlet. mouth;

Images