Constant-temperature and low-temperature variable-frequency water flow heat exchange system

Abstract

The invention relates to the technical field of water flow heat exchange, in particular to a constant-temperature and low-temperature variable-frequency water flow heat exchange system, which overcomes the defect that the heat exchange system has large energy loss, and comprises a four-way reversing valve and a fan, the four-way reversing valve is connected with a water side heat exchanger through a pipeline, and is connected with a heat exchanger through a pipeline; the heat exchanger is connected with a T defrosting sensor through a pipeline, and the T defrosting sensor is connected with a first filter through a pipeline. The low-temperature variable-frequency multi-system hot water system and the normal-temperature variable-frequency multi-system hot water system are arranged to be matched, so that mixed application of multiple modes can be achieved, a split / overall structure mode can be achieved, operation of a variable-frequency mode can be achieved, multi-energy consumption under multiple working conditions is met, electric power loss is reduced, and multi-point temperature control serves as the target; start-stop loss of the compressor can be effectively reduced, and multi-stage energy output loss is reduced.

Description

technical field [0001] The invention relates to the technical field of water flow heat exchange, in particular to a normal and low temperature frequency conversion water flow heat exchange system. Background technique [0002] Under the demand of "double carbon" clean energy, the energy application of air source is constantly being applied in new fields, and new technological breakthroughs are constantly being achieved. With the continuous application of new energy fields, the continuous utilization of comprehensive energy is used to realize the transmission and utilization of differentiated energy, and finally realize the comprehensive utilization of multi-working conditions and multi-regional energy. Existing hot water units usually use electric energy and gas energy as the main energy , to realize the conversion and application of heat energy through combustion, electric energy conversion, etc., the energy conversion efficiency is low, and the loss is high. Air-source he...

AI Technical Summary

Problems solved by technology

Air-source heat pump water heaters in the industry use heat pump reverse Carnot cycle to drive through electric energy to realize the transfer of low-grade heat to high-grade heat. Existing heat pump water heaters basically use a fixed-speed heating cycle, and separately configure hot water storage tank to realize the hot and cold water heating mode, but the hot water usage rate of this hot water unit is not very high. During the hot water use process, the cold water is automatically replenished, causing the water temperature to drop, reducing the user's hot water usage rate

The electric power loss during the start and stop process of the fixed speed heat pump unit is relatively large, the start and stop of the heat pump unit will cause a large loss of electric energy and a large energy waste

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