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Water pump control method and system of air conditioner cooling system and household central air conditioner

A technology of a cooling system and a control method, which is applied to household appliances, household heating, heating and ventilation control systems, etc., can solve problems such as electric energy waste, and achieve the effects of reducing energy consumption, saving electric energy output, and saving electric energy.

Inactive Publication Date: 2015-05-06
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the water-cooling system of household central air-conditioning, a fixed-frequency water pump is generally used to drive the cold cut water to circulate, and it keeps running at full load during operation. However, when the central air-conditioning system is actually in operation, the actual amount of water circulation required varies with different working conditions. Different, so this kind of operation mode that keeps running at full load will inevitably cause a certain amount of waste of electric energy

Method used

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  • Water pump control method and system of air conditioner cooling system and household central air conditioner
  • Water pump control method and system of air conditioner cooling system and household central air conditioner
  • Water pump control method and system of air conditioner cooling system and household central air conditioner

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Embodiment 1

[0042] figure 1 It is a flow chart of a method for controlling a water pump of an air-conditioning cooling system provided in an embodiment of the present application.

[0043] Such as figure 1 As shown, the water pump control method provided in this embodiment is applied to a household central air conditioner that uses water for cooling, and includes the following steps:

[0044] S101: Obtain the temperature difference between the water entering and exiting the cooling system of the air conditioner.

[0045] The so-called temperature difference between inlet and outlet water refers to the difference between the water temperature of the water inlet of the air-conditioning cooling system and the water temperature of the water outlet. Since the water temperature of the water inlet is lower than the water temperature of the water outlet during cooling, and the opposite is true when heating, so in the specific calculation, the absolute value of the difference between the water t...

Embodiment 2

[0055] figure 2 It is a flow chart of a water pump control method for an air-conditioning cooling system provided in another embodiment of the present application.

[0056] Such as figure 2 As shown, the water pump control method provided in this embodiment is an improvement made on the basis of the previous embodiment, including the following steps:

[0057] S201: Obtain the temperature difference between the inlet and outlet water of the air-conditioning cooling system.

[0058] The so-called temperature difference between inlet and outlet water refers to the difference between the water temperature of the water inlet of the air-conditioning cooling system and the water temperature of the water outlet. Since the water temperature of the water inlet is lower than the water temperature of the water outlet during cooling, and the opposite is true when heating, so in the specific calculation, the absolute value of the difference between the water temperature of the water inl...

Embodiment 3

[0072] image 3 It is a schematic diagram of a water pump control system of an air-conditioning cooling system provided in another embodiment of the present application.

[0073] Such as image 3 As shown, the water pump control system provided in this embodiment includes a calculation module, a first control module and a second control module.

[0074] The calculation module is used to obtain the temperature difference between the inlet and outlet water of the air conditioning cooling system.

[0075] The so-called temperature difference between inlet and outlet water refers to the difference between the water temperature of the water inlet of the air-conditioning cooling system and the water temperature of the water outlet. Since the water temperature of the water inlet is lower than the water temperature of the water outlet during cooling, and the opposite is true when heating, so in the specific calculation, the absolute value of the difference between the water temperat...

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Abstract

The application provides a water pump control method and system of an air conditioner cooling system and a household central air conditioner. The control method and system are applied to the household central air conditioner which performs cooling by using water. The method and the system are characterized in that firstly inlet and outlet water temperature difference between a water inlet and a water outlet of the air conditioner cooling system is obtained; then the inlet and outlet water temperature difference is respectively compared with a preset inlet and outlet water temperature difference upper limit and a preset inlet and outlet water temperature difference lower limit; if the inlet and outlet water temperature difference is smaller than the inlet and outlet water temperature difference lower limit, the rotating speed of a water pump is reduced; if the inlet and outlet water temperature difference is greater than the inlet and outlet water temperature difference upper limit, the rotating speed of the water pump is increased; if the inlet and outlet water temperature difference is between the inlet and outlet water temperature difference lower limit and the inlet and outlet water temperature difference upper limit, the current rotating speed of the water pump is maintained. By adaptively adjusting the rotating speed of the water pump through a judgment result of the inlet and outlet water temperature difference, when the inlet and outlet water temperature difference is smaller than the preset inlet and outlet water temperature difference lower limit, the rotating speed of the water pump is reduced at proper time and thus the overall energy consumption of the central air conditioner system can be reduced.

Description

technical field [0001] The present application relates to the technical field of air conditioners, and more specifically, to a water pump control method and system for an air conditioner cooling system and a household central air conditioner. Background technique [0002] In the water-cooling system of household central air-conditioning, a fixed-frequency water pump is generally used to drive the cold cut water to circulate, and it keeps running at full load during operation. However, when the central air-conditioning system is actually in operation, the actual amount of water circulation required varies with different working conditions. Different, so this kind of operation mode that keeps running at full load will inevitably cause a certain amount of waste of electric energy. Contents of the invention [0003] In view of this, the present application provides a water pump control method and system of an air-conditioning cooling system and a domestic central air condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64
Inventor 姚勇韬程建军程会恩任鹏陈万兴
Owner GREE ELECTRIC APPLIANCES INC
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