A thermoelectric heating system

Abstract

The invention discloses a thermoelectric heat recovery system, which comprises a refrigeration unit and a thermoelectric heat recovery unit. The refrigeration unit includes a compressor, an air-cooled condenser, a throttle valve, an air-cooled evaporator, and a circulation pipeline; the thermoelectric recovery unit includes a thermopile, a heat exchanger, a bypass branch controller, and The hot end heat exchanger and the cold end heat exchanger are connected respectively; the hot end heat exchanger is connected with the circulation pipeline from the evaporator, and heats the steam from the evaporator to increase the superheat of the refrigerant; the cold end heat exchanger It is connected with the circulation pipeline from the condenser to cool the liquid from the condenser and increase the subcooling degree of the refrigerant; the bypass branch controller can control the refrigerant flow through the heat exchanger to expand the heat exchange range. Compared with traditional regenerators, the thermoelectric regenerator system of the present invention can precisely control the degree of subcooling and superheat of the refrigerant, and has the advantages of small size, simple structure, easy installation, convenient control, no noise and environmental protection.

Description

technical field [0001] The invention belongs to the field of air conditioning and cold storage refrigeration, and more specifically relates to a thermoelectric heat recovery system. Background technique [0002] The world is facing an energy crisis. On the one hand, it is necessary to develop new energy sources, and on the other hand, energy-saving management of existing products is required. At present, "energy saving and emission reduction" is an important topic in the eyes of all countries in the world. As a major energy consumer, building energy consumption accounts for about 1 / 3 of the total energy consumption of society, and heating and air conditioning energy consumption accounts for about 40% of building energy consumption. %. With the development of urban construction, the proportion of air-conditioning energy consumption in civil energy consumption will also increase, so in the research of air-conditioning systems, energy-saving research has very important economi...

AI Technical Summary

Problems solved by technology

However, the subcooling temperature difference that can be realized by the current regenerator is low, and the improvement of COP (Coefficient of Performance, coefficient of performance) is small, so it is difficult to ensure that the COP is in the optimal state at all times. will significantly reduce the cooling capacity

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