Heat pump unit for preventing water system from being damaged by freezing in power failure through thermoelectric power generation

Abstract

The invention discloses a heat pump unit for preventing a water system from being frozen due to power failure through thermoelectric power generation, and relates to the technical field of heat pump units. Comprising a heat pump main machine, a temperature difference power generation piece, a lithium battery storage battery, a mechanical passive temperature controller and a compressor. An exhaust pipe opening welding piece of the compressor and the surface of a high-pressure cavity cylinder body of the compressor are both fixedly connected with the high-temperature end of the temperature difference power generation piece. An air return pipe opening welding piece of the compressor and the surface of a low-pressure cavity cylinder body of the compressor are both fixedly connected with the low-temperature end of a thermoelectric power generation piece, the power generation output end of the thermoelectric power generation piece is connected with a lithium battery, the voltage output end of the lithium battery is connected with a direct-current and alternating-current inverter, and the voltage output end A of the direct-current and alternating-current inverter is connected with an alternating-current electromagnetic valve. And the voltage output end B of the direct-current and alternating-current inverter is connected to the mechanical passive temperature controller. Temperature difference is used for power generation, the lithium storage battery is used for storage, and after the mains supply is powered off, the lithium storage battery discharges, so that water drainage is achieved, and damage to pipelines and the heat exchanger is avoided.

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