Air energy water heater and constant temperature water outlet control method thereof

Abstract

The invention discloses an air energy water heater and a constant temperature water outlet control method thereof. The constant temperature water outlet control method comprises the following steps that firstly, the maximum set water outlet temperature Tsmax in a water using point is selected as the set water outlet temperature, and water outlet temperature Tc of a water tank of the water heater and water using temperature Ty of the water using point are detected; then the magnitude relation between the set water outlet temperature Tsmax and the water using temperature Ty is obtained with comparison, and a corresponding adjusting mode is selected; and finally the water using amount of the hot water output end of the water using point is adjusted to the maximum, the frequency P of an inverter compressor adapts to the maximum amount, and thus the water outlet temperature Tc of the water tank, the set water outlet temperature Tsmax and the water using temperature Ty are equal. The hot water using amount and the frequency of the compressor are adjusted by feeding back the water using temperature of the water using end, thus the water using temperature of the client is equal to the water outlet temperature of the water tank during stable unit operation, and water usage is more comfortable. The inverter compressor operates at optimal frequency all the time, and power consumption of aunit can be lowered.

Description

technical field [0001] The invention relates to the technical field of air energy water heaters, in particular to an air energy water heater with a frequency conversion compressor and a constant temperature outlet water control method thereof. Background technique [0002] Air energy water heaters are energy-saving, environmentally friendly, and efficient, and are being used more and more widely. However, ordinary household air energy water heaters need to be equipped with heat storage water tanks with a volume of 100 L or more to be considered reasonable applications. The large volume of the water tank means that it takes up a lot of space. Today, when houses are very expensive, this means that the popularization and application of household air energy water heaters is limited. The solution is to use a direct-heating water heater, and the external unit with a large heating capacity is equipped with a small-volume water tank, such as a water tank of about 60 L. The purpose ...

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Problems solved by technology

[0005] In order to solve the problems that the existing air energy water heaters often need to adjust the cold and hot water when they are used, resulting in inconvenient use and energy waste, the present invention proposes an energy-saving, high-efficiency, easy-to-use air energy water heater and its constant temperature outlet water control method

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