The invention discloses a composite evaporative cooling type
heat pump unit which comprises an
air cooling fan and an evaporative air cooler which are located at the top of the unit, functional areas of a box body of the unit are distinguished through double-layer grids, the grid on the left side corresponds to an air inlet, the grid in the middle covers filler for evaporative cooling, and a water tank for collecting spray water is arranged at the bottom. A cooling water pump for pushing
water circulation is arranged on the side of the water tank; the unit is provided with an evaporative
heat exchanger, an air-cooled
heat exchanger, a shell and tube
evaporator, a compressor, a gas-liquid separator and an oil separator, the evaporative
heat exchanger is connected with the air-cooled heat exchanger through a liquid
pipe, each template is provided with an independent
cut-off
ball valve, and a main loop is directly connected with a four-way valve and an
electromagnetic valve automatic
switching loop; an EVD
data collector is arranged at an outlet of the shell and tube
evaporator and is directly connected with the four-way valve, and an
electromagnetic valve automatic
switching loop is connected to an inlet through a
copper pipe; the compressor and the four-way valve are adjacently arranged on the lower side of the box body, one end of the gas-liquid separator is connected with an exhaust port of the compressor through a steel
pipe, and the other end is connected with the four-way valve; one end of the oil separator is connected with an exhaust port of the compressor through a steel pipe, and the other end is connected with the four-way valve. The problem that an evaporative
heat pump unit in a low-temperature environment area in winter is unstable in
heating effect is solved, meanwhile, the refrigerating efficiency is higher than that of an air-cooled
heat pump,
system operation is stable, and
energy conservation and emission reduction are achieved.