Multifunctional heat recovery heat exchanger and running method thereof

Abstract

The invention relates to a multifunctional heat recovery heat exchanger and a running method thereof, and belongs to the technical field of heat recovery. The heat exchanger comprises an exhaust air side heat exchanger body, an inlet air side heat exchanger body, two circulating pumps and four three-way valves; the inlet air side heat exchanger body and the exhaust air side heat exchanger body each comprise a spraying assembly, a heat exchange coil and a liquid storage groove; the first three-way valve is installed on an inlet pipe of the inlet air side heat exchanger body, the second three-way valve is installed on an outlet pipe of the inlet air side heat exchanger body, the third three-way valve is installed on an inlet pipe of the exhaust air side heat exchanger body, and the fourth three-way valve is installed on an outlet pipe of the exhaust air side heat exchanger body. A pure sensible heat exchange mode, a spraying heat exchange mode, an air-conditioner heat recovery summer running mode, an air-conditioner heat recovery winter running mode and a simultaneous heat and humidity adjusting mode can be achieved through reversing of the three-way valves and on or off of the circulating pumps. As the multifunctional heat recovery heat exchanger and the running method are wide in application field and high in heat recovery efficiency, air-conditioner loads can be effectively reduced, and an important role can be played in energy saving, emission reduction and environmental protection.

Description

technical field [0001] The invention relates to the field of heat recovery. Due to its convenient adjustment, different heat recovery and heat exchange functions can be realized, and it is a multifunctional heat recovery heat exchanger with high-efficiency heat exchange. Background technique [0002] At present, there are two forms of exhaust air heat recovery in air conditioning systems: total heat recovery and sensible heat recovery. Total heat recovery can use exhaust air to heat and humidify fresh air (in winter) or cool down and dehumidify (in summer). Sensible heat recovery only It can handle the temperature of fresh air. For some technological air conditioners (such as animal breeding rooms), the exhaust air cannot enter the room again, and a fresh air DC system must be used. However, if this kind of system does not use heat recovery equipment, the load on the air conditioning system will increase sharply. Therefore, the application of this type of heat exchanger ca...

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Problems solved by technology

[0003] The existing total heat recovery forms mainly include rotary heat exchanger and film heat exchanger. The heat exchange efficiency of the two types of equipment is relatively high. The sensible heat exchanger mainly includes heat pipe heat exchanger and plate heat exchanger. Class, but it generally only designs a single-function heat exchange device for rated working conditions, and cannot be adjusted

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