| 摘要 |
<p>An air source cold-heat energy unit includes a compressor (1), pipeline control valves, heat exchangers (3, 5, 12) and expansion valves (6, 10). The gas outlet of the compressor (1) is communicated with one end of a second heat exchanger (5) via an electromagnetic triple valve (2), a first heat exchanger (3) and a four way reversal valve (4). The other end of the second heat exchanger (5) is communicated with the electromagnetic triple valve (2). The second heat exchanger (5) is communicated with one end of a third heat exchanger (12) via a first one way valve (8), a first electromagnetic valve (10) and a first expansion valve (11). The second heat exchanger (5) is also communicated with the end of the third heat exchanger (12) via a second expansion valve (6), a second electromagnetic valve (7), the first electromagnetic valve (10) and the first expansion valve (11). Said end of the third heat exchanger (12) is communicated with the first one way valve (8) via a second one way valve (9). The second one way valve (9) is communicated with the four way reversal valve (4) via a fourth electromagnetic valve (14). The other end of the third heat exchanger (12) is communicated with the gas inlet of the compressor (1) via a third electromagnetic valve (13) and the four way reversal valve (4).</p> |
