Thermal mass decoupling heat exchanger and thermal mass decoupling method thereof

A heat exchange technology for heat exchangers and heat pipes, applied in indirect heat exchangers, lighting and heating equipment, etc., can solve problems such as reduced efficiency, reduced system economy, and difficulty in practical promotion and application, to achieve efficient heat exchange and improve efficiency. Effect

Pending Publication Date: 2019-11-26
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Conventional heat pump equipment is limited by the performance and flow of the circulating working fluid, and can only work within a limited temperature range. If the temperature difference between the low-temperature object and the high-temperature object is large, its efficiency will be greatly reduced, so the economy of the system will be significantly reduced. It is difficult to actually promote the application

Method used

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  • Thermal mass decoupling heat exchanger and thermal mass decoupling method thereof

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Embodiment

[0023] The internal circulating medium of the thermal mass decoupling heat exchanger is composed of working medium A, working medium B and working medium C, wherein the internal circulating medium, working medium A selects R32, working medium B selects R134a and working medium C selects R125, Among them, R32 and R134a constitute a working pair. The heat transfer process and mass transfer process of R32 and R134a are decoupled inside the heat exchanger, and the heat transfer process is carried out in the phase change heat exchanger 1 and the mass transfer process is carried out in the absorption tower 2 by operating independently. The first phase change heat exchanger 1 realizes the evaporation process of R134a and the condensation process of R125 in the space outside the heat transfer tube; the second phase change heat exchanger 4 realizes the evaporation process of R125 in the space outside the heat transfer tube and The condensation process of the space R134a in the heat tra...

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Abstract

The invention discloses a thermal mass decoupling heat exchanger and a thermal mass decoupling method thereof in the technical field of energy utilizing. The thermal mass decoupling heat exchanger isa two-stage compression thermal mass decoupling heat exchanger, and is composed of a phase transformation heat exchanger, an absorbing tower, a cooler, a heater, a desorbing device, a compressor, a circulation pump, a throttling valve, padding, a hot water pipeline, a cold water pipeline, a heat pipe and a connection pipeline. The thermal mass decoupling heat exchanger adopts a heat pipe heat exchanging manner, the heat exchanger flow path of two-stage compression and thermal mass decoupling is built, so that the irreversible loss in the heat exchanging process of the heat exchanger and a coldsource and a hot source is remarkably reduced, and efficient transmission of heat under a large temperature difference is achieved; and efficient heat exchanging of a low temperature object and a high temperature object is achieved, heat can be extracted from the low temperature object such as soil, underground water, air or industrial waste heat, high temperature water, steam or chemical media are obtained, and remarkable technological and economical advantages are achieved due to remarkable improvement of the system efficiency.

Description

technical field [0001] The invention belongs to the technical field of energy utilization, and in particular relates to a heat-mass decoupling heat exchanger and a heat-mass decoupling method thereof, in particular to a high-efficiency heat exchanger for extracting heat from low-temperature objects to heat high-temperature objects. Background technique [0002] There are a lot of heat exchange processes in the field of energy utilization, according to the second law of thermodynamics: heat can only spontaneously transfer from high temperature objects to low temperature objects. If it is necessary to transfer heat from a low temperature object to a high temperature object, a certain cost is required. The temperature difference is the driving force for heat transfer. When heat needs to be transferred from a high temperature object to a low temperature object, only a conventional heat exchanger is required, but if heat is transferred from a low temperature object to a high temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D21/00
CPCF28D21/0015
Inventor 孙健霍成马世财戈志华杜小泽杨勇平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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