Pipeline heat accumulation type instant-heating high-temperature air source heat pump water heating system

Abstract

The invention discloses a pipeline heat accumulation type instant-heating high-temperature air source heat pump water heating system. The system comprises a plurality of heat exchangers, a primary side heating module and a secondary side heating module, wherein the heat exchangers are connected in parallel, and each heat exchanger comprises a primary side and a secondary side which are isolated from each other and can exchange heat; the primary side heating module is communicated with the primary side of each heat exchanger respectively; and the secondary side heating module is communicated with the secondary side of each heat exchanger respectively. According to the system, the primary sides are no longer in direct contact with tap water, scaling is avoided, and the operation is more stable and efficient; tap water is directly supplied to the tail end after being subjected to heat exchange through the heat exchangers, the system is simple and reliable, investment is saved, the problemthat cold water and hot water are different in source is thoroughly solved, and tail end water is not suddenly cold or hot; the heat pump combination realizes modular configuration, the configurationis flexible, and the operation is more stable; and meanwhile, pipeline heat storage is adopted, so that the purchasing cost is reduced, the working efficiency of a heat pump is improved, and the operation cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of heat pump water heating, in particular to a pipe heat storage type instant high temperature air source heat pump water heating system. Background technique [0002] Heat pump heating technology is often used in hotels, hospitals, office buildings, factories and other places. The heat pump heating technology used in the prior art all uses open stainless steel water tanks to store hot water, and then sends it to various places through constant pressure frequency conversion feed water pumps. At the end, it can basically meet the multi-terminal hot water demand in hotels, hospitals, office buildings, factories and other places. However, the open stainless steel water tank and the constant pressure frequency conversion water supply system occupy a large area, the cost is high and the investment is large, and the heat pump is directly in contact with the tap water, and the scaling is serious, which affects the ...

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Problems solved by technology

However, the open stainless steel water tank and the constant pressure frequency conversion water supply system occupy a large area, the cost is high and the investment is large, and the heat pump is directly in contact with the tap water, and the scaling is serious, which affects the life of the heat pump unit; The frequency conversion water supply system has different sources, which often leads to unstable and unbalanced pressure of hot and cold water at the end, and the phenomenon of hot and cold when the water is used at the end; and, since the open stainless steel water tank is located at the water inlet of the air source heat pump, it is in constant open When the temperature of the stainless steel water tank (for example, 55°C), the inlet water temperature of the air source heat pump is actually the temperature of the open stainless steel water tank, and the outlet water temperature reaches 60°C, resulting in a low heating coefficient of performance and increased operating costs

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