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Antifreeze control method of hot water machine and hot water machine

A control method and technology for water heaters, applied in the control of fluid heaters, refrigerators, damage protection, etc., can solve problems such as poor antifreeze reliability, and achieve the effects of eliminating rigid effects, improving user experience, and running softly during antifreeze.

Active Publication Date: 2022-03-18
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0004] The invention proposes an antifreeze control method for a water heater and the water heater, which solves the problem of poor antifreeze reliability of the water heater in the prior art

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  • Antifreeze control method of hot water machine and hot water machine

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] The present invention proposes an antifreeze control method for a hot water machine. The method mainly detects the outlet water temperature T of the hot water machine unit in real time. O , Inlet water temperature T i and the ambient temperature T, and the water outlet temperature T measured each time O , Inlet water temperature T i and ambient temperature T to record, in the following description, the outlet water temperature T O , Inlet water temperature T i and the ambient temperature T both represent the actual temperature value currently measured, a...

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Abstract

The present invention proposes an antifreeze control method for a water heater and the water heater. The water heater includes a water pump and a compressor. The antifreeze control method for the water heater includes: after the water heater enters the antifreeze mode, it is first judged whether the water pump is turned on or not according to the opening condition of the water pump. Water pump, after the water pump is turned on, judge whether to turn on the compressor according to the opening conditions of the compressor, and when the water heater enters the antifreeze mode and when the water heater meets the conditions for exiting the antifreeze mode, the water machine exits the antifreeze mode; after the compressor is turned on, when the hot water When the water heater meets the shutdown conditions, the hot water machine will be turned off. If the water heater does not meet the shutdown conditions, check whether the water heater meets the conditions for exiting the antifreeze mode; and continuously correct the parameters of the opening conditions during the operation of the water pump and compressor to achieve accurate control. The water pump and compressor are switched on. Compared with the prior art, the present invention improves the reliability of the unit when performing the anti-freezing action, and reduces the misoperation when the unit directly performs the anti-freezing action in the low-temperature mode.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an antifreeze control method of the water heater and the water heater. Background technique [0002] The current variable frequency multifunctional water heaters have freezing problems during operation. Therefore, during the operation of the general unit, once the water temperature of the water heater is too low or under severe working conditions, such as the outdoor ambient temperature is very low in winter, and the water temperature is lower than freezing point. , the water in the heat pump hot water unit is easy to freeze, which will cause damage to the whole unit, the loss is very serious, and there will be a risk of freezing the heat exchanger. The multifunctional water heaters exported to Europe often have such problems. The water heaters operate in a low-temperature environment, which often causes things like freezing and damaging water pipes. The most important thi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/20F24H15/136F25B47/00
CPCF24H9/2007F25B47/006
Inventor 朱洁华胡乾龙曾凡卓马定超朱俊威崔润中
Owner GREE ELECTRIC APPLIANCES INC
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