Heat pipe energy recovery type fresh air handling unit

The utility model discloses a heat pipe energy recovery type fresh air handling unit, and a shell is divided into a fresh air heat-exchange cavity and an air exhaust heat-exchange cavity up and down;one end of the air exhaust heat-exchange cavity is provided with an indoor air exhaust inlet, the other opposite end thereof is provided with an indoor air exhaust outlet, and an air exhaust ventilator is arranged at the air exhaust outlet; one end of the fresh air heat-exchange cavity is provided with a fresh air inlet, and the other opposite end thereof is provided with a fresh air outlet, and afresh air ventilator is arranged at the fresh air outlet. An outdoor fresh air handling heat exchanger is arranged in the fresh air heat-exchange cavity, and an indoor air exhaust handling heat exchanger is arranged in the air exhaust heat-exchange cavity; the outdoor fresh air handling heat exchanger and the indoor air exhaust handling heat exchanger are connected with a gas-liquid separator, acompressor and an expansion valve to form a closed circulating system by a four-way selector valve; a heat pipe heat exchanger is arranged between the outdoor fresh air handling heat exchanger and theindoor air exhaust handling heat exchanger, the heat pipe heat exchanger penetrates through a sealing clapboard and is arranged in the shell vertically or with a 30-degree acute angle with the plane.