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Energy saving control method for adaptive frequency conversion heat pump hot water heating system

A heat pump hot water and heating system technology, which is applied in the heating system, heating method, space heating and ventilation details, etc., can solve the problems of large differences in the laying of heat exchange coils in thermal insulation performance, and different temperature perceptions for different groups of people. Achieve the effect of obvious energy saving effect and accurate temperature calculation of water supply

Active Publication Date: 2018-04-13
SHUNDE POLYTECHNIC
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Problems solved by technology

However, due to the dynamic changes in the outdoor ambient temperature, the thermal insulation performance of different buildings and the laying of heat exchange coils are quite different, and the temperature perception of different groups of people is different, how to use a simple method to determine the optimal heat pump water supply temperature is to achieve heat pump operation The key to energy saving

Method used

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  • Energy saving control method for adaptive frequency conversion heat pump hot water heating system

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Embodiment Construction

[0016] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0017] like figure 1 As shown, it is an energy-saving control method for an adaptive frequency conversion heat pump hot water heating system. The frequency conversion heat pump hot water heating system includes a frequency conversion heat pump water heater 1, a water storage tank 2, a circulating water pump 3, a hot water coil 4, and a control system 5. The water storage tank temperature sensor 6, the return water temperature sensor 7, the room air temperature sensor 8 and the outdoor environment temperature sensor 9; wherein the water outlet of the hot water coil 4 communicates with the water return port of the water storage tank 2, and the water outlet ...

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Abstract

The invention relates to an energy-saving control method for an adaptive frequency conversion heat pump hot water heating system. Judging the temperature difference between the calculated temperature and the actual temperature of the return water, correcting the calculated temperature of the heat pump water supply; The calculated temperature is corrected again; according to the difference between the actual temperature of the water supply and the calculated temperature of the heat pump water supply obtained by the second correction function, the compressor speed of the variable frequency heat pump water heater is adjusted so that the actual calculated temperature of the water supply is consistent with the calculated temperature of the heat pump water supply. Its advantages are: taking full account of the differences in thermal insulation characteristics of different buildings and the laying of hot water coils, the calculated temperature of water supply is more accurate, and the energy saving effect is more obvious.

Description

technical field [0001] The invention relates to an energy-saving control method for an adaptive frequency conversion heat pump hot water heating system. Background technique [0002] As a high-efficiency and energy-saving hot water product, heat pump water heaters are increasingly used in heating systems. Frequency conversion heat pump water heaters have gradually begun to be used in radiant floor heating systems due to their advantages of constant water supply temperature and high energy efficiency. [0003] At present, whether it is a fixed-frequency or variable-frequency heat pump water heater floor heating system design, the water supply / return water temperature is generally 45°C / 35°C, and the room air temperature is mostly controlled by the floor surface temperature or room air temperature. The heat pump water heater is turned on and off. Because the energy efficiency of the heat pump water heater decreases with the increase of the water supply temperature, and the out...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/20F24D19/10F24H4/04
CPCF24D19/1039F24H4/04F24H9/2007F24H15/223F24H15/254F24H15/219F24H15/258F24H15/281F24H15/38F24H15/156
Inventor 徐言生邹时智
Owner SHUNDE POLYTECHNIC
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