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Heat pump water heater blowdown control method and heat pump water heater

A technology for heat pump water heaters and control methods, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems of heat pump water heater scaling and accumulation, and achieve the effects of solving scaling accumulation and ensuring water quality and heating efficiency

Active Publication Date: 2021-11-12
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a heat pump water heater blowdown control method and a heat pump water heater to solve the technical problem of scale accumulation in existing heat pump water heaters

Method used

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  • Heat pump water heater blowdown control method and heat pump water heater
  • Heat pump water heater blowdown control method and heat pump water heater

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Embodiment Construction

[0023] The specific implementation manners of the present application will be described in further detail below in conjunction with the accompanying drawings.

[0024] The blowdown control method of the heat pump water heater proposed in this application, such as figure 1 shown, including the following steps:

[0025] Step S11: In each detection cycle, determine whether the water temperature in the water tank continuously drops to the set temperature, and the number of times that the second set temperature falls less than the set time is greater than the set number of times, and / or determine whether the water temperature in the water tank is greater than the threshold temperature.

[0026] In each detection cycle, for example, within each 24 hours, the following judgment is made:

[0027] Method A: Judging whether the water temperature in the water tank drops continuously to the set temperature, and the number of times that the second set temperature falls less than the set ...

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Abstract

The invention discloses a heat pump water heater blowdown control method and a heat pump water heater. In each detection cycle, it is judged whether the water temperature in the water tank continuously drops to a set temperature, and whether the number of times that the time for falling the second set temperature is less than the set time is greater than or equal to the set time. Set the number of times, and / or judge whether the water temperature in the water tank is greater than the threshold temperature; if so, add one to the blowdown value, and judge whether the blowdown value is greater than the blowdown threshold; if so, issue a blowdown indication message. After the user receives the blowdown instruction information, he can trigger the blowdown button in time to generate a blowdown confirmation signal, so that the heat pump water heater starts to blow down and descale, so as to ensure that the scale can be cleaned up in time to avoid the accumulation of water quality or the reduction of heating efficiency. Compared with the prior art that requires users to activate the sewage discharge function at set time intervals, the sewage discharge control method proposed in this application can actively remind the user to start the sewage discharge function, remove scaling in time, and solve the existing heat pump water heater scaling accumulation technology question.

Description

technical field [0001] The invention belongs to the technical field of heat pump water heaters, and in particular relates to a heat pump water heater blowdown control method and the heat pump water heater. Background technique [0002] The air energy heat pump water heater absorbs the low-temperature heat in the air, vaporizes it through the fluorine medium, then compresses it through the compressor, pressurizes it to increase the temperature, and then transforms it into the water to heat it through the heat exchanger. The high-temperature heat energy after compression is used to heat the water temperature. Technology It has the characteristics of high efficiency, energy saving, environmental protection and reliability. [0003] Existing heat pump water heaters have the problem of unclean water source and too much calcium and magnesium ions in tap water. More and more scale and impurities will accumulate at the bottom of the water tank after long-term use. Generally, when th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H4/02F24H9/20
CPCF24H4/02F24H9/2007
Inventor 孙成龙杨磊王慧罗彦涛李魁星
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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