Variable-frequency water pump control method applicable to variable-frequency heat-pump water heater
A technology of heat pump water heaters and variable frequency water pumps, which is applied to fluid heaters, lighting and heating equipment, etc. It can solve the problems of reduced heat exchange temperature difference between refrigerant and water level, poor energy efficiency of heat pumps, etc., to improve energy efficiency, reduce noise, and improve comfort sexual effect
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[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0022] See attached figure 1 As shown, in this embodiment, a water heater suitable for frequency conversion heat pumps includes an outdoor heat exchanger 1, a water side heat exchanger 2, a compressor 3, a frequency conversion water pump 4, a flow meter 5, an outlet water temperature sensor 6 and Inlet water temperature sensing probe 7, wherein the refrigerant flow path of the water side heat exchanger 2 is connected with the outdoor heat exchanger 1 and the compressor 3, a...
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