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Heating method and device of dual-heat source heat pump and device

A heating device and heating method technology, applied in the direction of heat pumps, fluid heaters, lighting and heating equipment, etc., can solve problems such as failure to operate normally, poor economic benefits, and difficult operation, so as to save energy consumption for defrosting operations and avoid condensation. Frost problems, the effect of the Coefficient of Performance

Inactive Publication Date: 2011-03-30
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the air source heat pump also has obvious shortcomings. When the ambient temperature drops, its working efficiency drops sharply. Or running difficulties (such as serious frost) and other problems

Method used

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  • Heating method and device of dual-heat source heat pump and device
  • Heating method and device of dual-heat source heat pump and device

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] The dual heat source heat pump heating device of the present invention includes a compressor 1, a condenser 2, a liquid reservoir 3, a dry filter 4, a throttling device 5, a gas-liquid separator 9, an inlet water temperature sensor 17, an outlet water temperature sensor 18, and an ambient temperature The sensor 19, the controller 20, the exhaust port of the compressor 1 and the refrigerant side of the condenser 2, the liquid receiver 3, the dry filter 4, and the throttling device 5 are connected sequentially through pipelines, and the suction port of the compressor 1 is separated from the gas-liquid The outlet end of the device 9 is connected by a pipeline, and the inlet water temperature sensor 17 and the outlet water temperature sensor 18 are respectively installed on the water side inlet and the water side outlet of the condenser 2, and the ambient t...

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Abstract

The invention discloses a heating method and device of a dual-heat source heat pump. The device comprises a heat pump power unit, a condenser, a liquid reservoir, a dry filter, a throttling device, an air source evaporator, a condensed ice evaporator, an ice-water separator, a water make-up tank, a gas-liquid separator, a solenoid valve, a temperature sensor and a controller. In the invention, the two evaporators are switched with each other for operation according to the ambient temperature to form a dual-heat source heat pump device; by means of heat extraction from the ice coagulation process, the evaporating temperature in case of low ambient temperature is increased so as to obtain high average performance coefficient of the heat pump; part of water in the condensed ice evaporator issolidified into ice slurry, thus achieving good flow characteristics and high heat transfer coefficient; and the obtained ice slurry can be used by an external user. The invention has the advantages of efficient energy conservation in case of low ambient temperature, no frosting, high safety, wide application range and the like, and is convenient installation and operation.

Description

technical field [0001] The invention belongs to a heat pump heating method and device for absorbing heat from two heat sources, in particular to a dual heat source heat pump heating device. Background technique [0002] With the development of the economy and the improvement of people's living standards, the demand for hot water in households or industrial and commercial institutions continues to increase. Water heater is an important equipment for supplying hot water. Compared with electric water heater and gas water heater, heat pump device has higher energy utilization efficiency and significant energy saving effect. Compared with solar water heater, it is not limited by sunshine conditions. [0003] According to the division of heat sources on the low-temperature side of heat pump devices, the heat sources on the low-temperature side of heat pump devices currently used for heating water mainly include air sources, ground sources, and water sources. Restricted by locatio...

Claims

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Application Information

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IPC IPC(8): F24H4/02F24H9/20F25B30/06
Inventor 张后雷刘心志朱曙光熊荣辉
Owner NANJING UNIV OF SCI & TECH
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