Air source heat pump unit

Air source heat pump unit

  • CN 104,713,265 A
  • Filed: 12/11/2013
  • Published: 06/17/2015
  • Est. Priority Date: 12/11/2013
  • Status: Active Application
First Claim
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1. a net for air-source heat pump units, is characterized in that, comprising:

  • Compressor, described compressor has air entry and exhaust outlet;

    Four-way change-over valve, described four-way change-over valve has exhaust valve port, air-breathing valve port, finned heat exchanger valve port and falling-film heat exchanger valve port, and described exhaust valve port is connected with described exhaust outlet, and described air-breathing valve port is connected with described air entry;

    Multiple finned heat exchanger and multiple cross valve, described multiple cross valve and described multiple finned heat exchanger one_to_one corresponding respectively, each described cross valve comprises first to fourth valve port, described first valve port of each described cross valve is connected with described exhaust outlet, described second valve port of each described cross valve is connected with one end of described finned heat exchanger, described 3rd valve port of each described cross valve is connected with described finned heat exchanger valve port, described 4th valve port of each described cross valve is connected with described finned heat exchanger valve port by first throttle element, the other end of each described finned heat exchanger is all connected with a check valve and heats restricting element, the outlet of each described check valve and each described in heat restricting element and be connected to each other by common line,Falling-film heat exchanger, described falling-film heat exchanger has first to the 3rd mouth of pipe, and described first mouth of pipe is connected with described falling-film heat exchanger valve port, and described second mouth of pipe is communicated with described common line respectively with described 3rd mouth of pipe;

    Check-valves, the import of described check-valves is connected with described 3rd mouth of pipe and the outlet of described check-valves is connected with described common line;

    Refrigeration restricting element, described refrigeration restricting element is connected with described common line with described second mouth of pipe respectively.

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