Cold and hot dual-output high-temperature efficient heat pump unit

Abstract

The invention discloses a cold and hot dual-output high-temperature efficient heat pump unit. The cold and hot dual-output high-temperature efficient heat pump unit comprises a single-machine two-stage compressor, an oil separator, a condenser, an electronic expansion valve, an economizer, an oil cooler, an evaporator and all connecting pipelines. The single-machine two-stage compressor communicates with the oil separator. The oil separator communicates with the condenser. The condenser communicates with the economizer. The economizer communicates with the evaporator through the electronic expansion valve. The evaporator communicates with the single-machine two-stage compressor. The cold and hot dual-output high-temperature efficient heat pump unit further comprises the oil cooler. The oilcooler communicates with the single-machine two-stage compressor. The cold and hot dual-output high-temperature efficient heat pump unit is ingenious in structural design, hot water at the temperature ranging from 70 DEG C to 90 DEG C is prepared through the condenser, and meanwhile, cold water at the temperature ranging from 7 DEG C to 15 DEG C is prepared through the evaporator, and the high comprehensive energy efficiency is achieved while cold and hot dual output of the heat pump unit is guaranteed through a mixed refrigerant and the single-machine two-stage compressor.

Description

【Technical field】 [0001] The invention relates to the field of air-conditioning heat pumps, in particular to a high-temperature and high-efficiency heat pump unit with dual cooling and heating outputs. 【Background technique】 [0002] A heat pump is a device that transfers thermal energy from a low-temperature heat source to a high-temperature heat source, and it is also a new energy technology that has attracted much attention around the world. Heat pumps usually first obtain low-grade heat energy from natural air, water or soil, and then provide people with high-grade heat energy that can be used through electricity. The low-temperature heat source of the heat pump is the medium around us - air, river water, sea water, urban sewage, surface water, ground water, reclaimed water, fire pools, and also geothermal heat or heat from waste steam, waste water and waste oil discharged during the production process. . Conventional heat pumps usually can only produce 40-70°C hot wat...

AI Technical Summary

Problems solved by technology

Conventional heat pumps can only produce 40-70°C hot water in one direction, the output heat source temperature is not high, and the overall energy efficiency of the unit is low

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