Heat-pump water heater reheating control method

A heat pump water heater and secondary heating technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve problems such as difficult implementation of programs, reduced user experience effects, complex logic, etc., and achieves reduced startup frequency, simple control logic, and extended The effect of service life

Active Publication Date: 2018-10-23
QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the method of setting different temperature hysteresis between the ambient temperature zones can achieve the effect to a certain extent, the logic is complicated and the program is not easy to implement; when the temperature hysteresis settings of different temperature zones are unreasonable, it is easy to reduce the user experience effect

Method used

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  • Heat-pump water heater reheating control method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0051] In this example, if figure 1 As shown, a heat pump water heater secondary heating control method, the heat pump water heater includes a detector for detecting the water temperature of the water tank and the ambient temperature, including the following steps:

[0052] Obtain the temperature parameters of the heat pump water heater;

[0053] Calculate and compare the set temperature hysteresis T and the actual temperature hysteresis t according to the temperature parameters of the heat pump water heater;

[0054] The secondary heating of the heat pump water heater is controlled according to the comparison result.

[0055] This embodiment provides a heating control method for the heat pump water heater with simple logic, which can effectively reduce the start-up frequency of the compressor and prolong the service life of the heat pump water heater under the condition of ensuring the supply water temperature.

[0056] In this embodiment, the temperature parameters include t...

Embodiment 2

[0083] In this example, if figure 1 As shown, a heat pump water heater secondary heating control method, the heat pump water heater includes a detector for detecting the water temperature of the water tank and the ambient temperature, including the following steps:

[0084] Obtain the temperature parameters of the heat pump water heater;

[0085] Calculate and compare the set temperature hysteresis T and the actual temperature hysteresis t according to the temperature parameters of the heat pump water heater;

[0086] The secondary heating of the heat pump water heater is controlled according to the comparison result.

[0087] This embodiment provides a heating control method for the heat pump water heater with simple logic, which can effectively reduce the start-up frequency of the compressor and prolong the service life of the heat pump water heater under the condition of ensuring the supply water temperature.

[0088] In this embodiment, the temperature parameters include...

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Abstract

The invention relates to a heat-pump water heater reheating control method. A heat-pump water heater comprises a detector for detecting water tank water temperature and environment temperature. The control method comprises the following steps that (1) temperature parameters of the heat-pump water heater are obtained; (2) according to the temperature parameters of the heat-pump water heater, set temperature return difference T and actual temperature return difference t are obtained through calculation and are compared with each other; and (3) whether the heat-pump water heater is controlled toheat or not is done according to comparative results. By means of the heating control method, the heat-pump water heater can be adjusted only by detecting the environment temperature and the actual water temperature, logics is simple, program achievement is facilitated, meanwhile, a compressor of the heat-pump water heater is protected, and frequent starting and stopping are prevented.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a secondary heating control method of a heat pump water heater. Background technique [0002] The air energy heat pump water heater absorbs the low-temperature heat in the air, vaporizes the refrigerant, and then compresses it through the compressor to increase the temperature, and then transforms the water through the heat exchanger to heat the water. The high-temperature heat energy after compression is used to heat the water temperature. The heat pump water heater has the characteristics of high efficiency and energy saving. It produces the same amount of hot water, which is 4-6 times that of ordinary electric water heaters. Its annual average thermal efficiency ratio is 4 times that of electric heating, and its energy efficiency is high. [0003] The running time of a heat pump water heater depends on the following factors: The water heater is a commodity, and the runni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20F24H4/02
CPCF24H4/02F24H9/2007
Inventor 田金城孙成龙李魁星
Owner QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE
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