Greenhouse type multi-compressor heat pump drying device and segmented drying method
A multi-compressor, heat pump drying technology, applied in heating devices, drying, heat pumps, etc., can solve the problems of large fluctuations in drying air temperature, affecting the economical efficiency of heat pump drying, and low operating frequency of compressors. Solve the problem of frequent start and stop, and the effect of low operating costs
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[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0023] Such as figure 1 As shown, a greenhouse type multi-compressor heat pump drying device includes a greenhouse drying box 1, a first frequency conversion compressor 22, a first condenser 32, two throttle valves, two evaporators, two a solenoid valve, two fans, three dampers and at least one compression condensing unit, each compression condensing unit includes a second inverter compressor 21, a second condenser 31 and three one-way valves, three The two check valves are respectively the first check valve 71, the second check...
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