Efficient heat exchange heat-preservation water tank for air source water heater

Abstract

The invention discloses an efficient heat exchange heat-preservation water tank for an air source water heater. The efficient heat exchange heat-preservation water tank comprises an outer-layer heat-preservation water tank body, a middle-layer heat-preservation water tank body, an inner-layer heat-preservation water tank body, a first-stage heat exchange coiled tube, a second-stage heat exchange coiled tube and a third-stage heat exchange coiled tube; the middle-layer heat-preservation water tank body is mounted in the outer-layer heat-preservation water tank body, and the inner-layer heat-preservation water tank body is mounted in the middle-layer heat-preservation water tank body; a sealed waste heat collection chamber is formed between the outer-layer heat-preservation water tank body and the middle-layer heat-preservation water tank body, and a sealed pre-heating heat exchange chamber is formed between the middle-layer heat-preservation water tank body and the inner-layer heat-preservation water tank body; and a cold water input tube is welded to the upper side of the outer-layer heat-preservation water tank body and communicates with the waste heat collection chamber. The efficient heat exchange heat-preservation water tank has the very good heat preservation effect, flowing of water from outside to inside is achieved, heat is not prone to being dissipated, a heat exchange medium sequentially flows through the first-stage heat exchange coiled tube, the second-stage heat exchange coiled tube and the third-stage heat exchange coiled tube, stage-by-stage heat exchange temperature rising of cold water is achieved, sufficient heat exchanging of a refrigerant is achieved, heat exchange efficiency is high, and the heat preservation effect is good.

Description

technical field [0001] The invention relates to the technical field of air source water heaters, in particular to a high-efficiency heat exchange heat preservation water tank for air source water heaters. Background technique [0002] The heat preservation water tank is an important part of the air source water heater, and it is a device for keeping water warm for a long time. The thermal insulation water tank of the existing air source water heater is usually laid with a layer of thermal insulation material on its side wall to reduce the heat loss in the water tank to the outside, and only has the function of storing hot water. When the circulating water pump pumps the cold water in the heat preservation water tank into the condenser for heat exchange, the hot water flows back into the heat preservation water tank for heat preservation. However, after the hot water mixes with the original low-temperature hot water in the heat preservation water tank, the temperature of the ...

AI Technical Summary

Problems solved by technology

When the circulating water pump pumps the cold water in the heat preservation water tank into the condenser for heat exchange, the hot water flows back into the heat preservation water tank for heat preservation. However, after the hot water mixes with the original low-temperature hot water in the heat preservation water tank, the temperature of the hot water after heat exchange is reduced. As a result, the temperature of the hot water in the insulation water tank is generally low, the distribution of cold and hot water is uneven, and it is difficult to release the high-temperature hot water after heat exchange.

Moreover, when the cold water is exchanging heat in the heat exchanger, it is difficult to ensure sufficient heat exchange with the heat exchange medium. Often the heat exchange medium contains a large amount of waste heat that has not been fully exchanged, and the waste heat is not fully utilized and discharged from the condenser, reducing air pollution. The heat exchange efficiency of the source water heater

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