Heat accumulation non-stop defrosting system and air conditioner

Abstract

The invention belongs to the field of air conditioning, and discloses a heat accumulation non-stop defrosting system and an air conditioner. The heat accumulation non-stop defrosting system comprises a first heat accumulator, a compressor, a second heat accumulator, a four-way reversing valve, a gas-liquid separator and a throttle valve. The first heat accumulator absorbs and stores heat produced during working of the compressor, and heat of flowing working media. The second heat accumulator absorbs and stores heat of flowing working media. A plurality of control valves are arranged in the system, during defrosting, working media flowing out from the compressor are divided into two parts, which pass through an indoor heat exchanger and an outdoor heat exchanger respectively and are gathered in front of the throttle valve, then pass through the throttle valve, the second heat accumulator, the first heat accumulator and the gas-liquid separator, and flow back to the compressor, specifically, the working media pass through the indoor heat exchanger to be condensed into liquid and release heat into a room through a perfusion fan, and nonstop is achieved in the defrosting process. Through the heat accumulation non-stop defrosting system and the air conditioner, the functions of defrosting and heating are achieved at the same time, in addition, the defrosting speed is high, electric heating energy consumption is decreased by reasonably applying the functions of the heat accumulators, and the energy source using efficiency of the whole system is improved.

Description

technical field [0001] The invention belongs to the field of air conditioning, and more specifically relates to a thermal storage non-stop defrosting system and an air conditioner. Background technique [0002] With the deepening of the concept of low-carbon environmental protection and the improvement of people's living standards, the application of air source heat pumps in winter heating is becoming more and more popular. The biggest problem with heat pump air conditioners in winter is the problem of frosting and defrosting. The defrosting process will not only cause a drop in room temperature, but also a worthless energy-consuming process. Therefore, from the aspects of comfort and energy saving In general, heat pump frosting and defrosting problems urgently need to be improved and optimized. When a heat pump room air conditioner operates at low temperature in winter, frost will form on the surface of the fins of the outdoor evaporator. As the frost layer thickens, the ev...

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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a thermal storage type non-stop defrosting system and an air conditioner, through the arrange

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