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Energy-saving control method for floor radiant heating system comprising variable-frequency heat-pump water heater

A technology of heat pump water heater and radiant heating, which is applied in heating system, heating method, space heating and ventilation details, etc. It can solve the problems such as the influence of human body thermal comfort and difficulty in guaranteeing room temperature, and achieve floor temperature uniformity and stability Good performance, good thermal comfort of the human body, and the effect of reducing the heat load of the room

Inactive Publication Date: 2015-09-30
SHUNDE POLYTECHNIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this control method is used alone, it is difficult to guarantee the temperature of the room, and the thermal comfort of the human body will be affected to a certain extent.

Method used

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  • Energy-saving control method for floor radiant heating system comprising variable-frequency heat-pump water heater

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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 with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0017] like figure 1 As shown, it is a control method for energy saving of a variable frequency heat pump water heater floor radiant heating system. The variable frequency heat pump water heater floor radiant heating system includes a variable frequency heat pump water heater 1, a water storage tank 2, a three-way proportional control valve 3, a circulating water pump 4, a hot water pan Pipe 5, control system 6, water storage tank temperature sensor 7, room air temperature sensor 8 and outdoor ambient temperature sensor 9; the thermometer in the water storage tank 2 sensed by the water storage tank temperature sensor 7 is the act...

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Abstract

The invention relates to an energy-saving control method for a floor radiant heating system comprising a variable-frequency heat-pump water heater. The energy-saving control method is characterized by comprising steps as follows: a functional expression of a water supply calculating temperature Tgj of a floor and an outdoor environment temperature Tw is established by a control system through calculation according to performance of the variable-frequency heat-pump water heater and heat load characteristics of a heating room; a functional expression of a room calculating air temperature Tnj based on a thermal comfort degree of a human body and the outdoor environment temperature Tw is established by the control system; a rotating speed of a compressor of the variable-frequency heat-pump water heater is adjusted by the control system according to the difference value of a water supply actual temperature Tgs and the water supply calculating temperature Tgj, and the water supply actual calculating temperature Tgs and the water supply calculating temperature Tgj are enabled to be consistent; the opening degree of a tee proportion regulating valve is adjusted by the control system according to the difference value of a room actual air temperature Tns and a room calculating air temperature Tnj, and the room actual air temperature Tns and the room calculating air temperature Tnj are enabled to be consistent. The energy-saving control method has the advantages that the energy efficiency of the heat-pump water heater is higher, energy-saving operation is realized, the comfort degree of the human body is better and the like.

Description

technical field [0001] The invention relates to a control method for energy saving of a floor radiant heating system of a variable frequency heat pump water heater. Background technique [0002] As a high-efficiency and energy-saving hot water product, heat pump water heaters are more and more applied to floor radiant heating. Inverter heat pump water heaters have gradually begun to be used in floor radiant heating systems due to their advantages of constant water supply temperature and high energy efficiency. At present, whether it is a fixed-frequency or variable-frequency heat pump water heater floor heating system, the design 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. Because the energy efficiency of the heat pump water heater decreases with the increase of the water supply temperature, the outdoor ambient temperature changes greatly in a heati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D19/10
Inventor 徐言生吴治将成伟华段明兴周雄健李锡宇李东洺
Owner SHUNDE POLYTECHNIC
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