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Control method and device for air conditioning group control system

A control method and air conditioning technology, which are applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve problems such as high cost and increase in system failure points, reduce testing equipment, reduce the number of testing, The effect of reducing construction costs and maintenance costs

Active Publication Date: 2019-09-24
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a control method and device for an air-conditioning group control system, to at least solve the problems in the prior art that a large number of monitoring devices need to be installed in the air-conditioning group control system, resulting in increased system failure points and high costs

Method used

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  • Control method and device for air conditioning group control system
  • Control method and device for air conditioning group control system
  • Control method and device for air conditioning group control system

Examples

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Embodiment 1

[0040] The control method of the air conditioner group control system provided by the present invention will be described below with reference to the accompanying drawings.

[0041] The control method of the air-conditioning group control system provided by the present invention can be applied to the group control design system of the central air-conditioning machine room, specifically, figure 2 An optional flow chart showing the control method of the air-conditioning group control system, such as figure 2 As shown, the method may include the following steps:

[0042] S202, obtaining the average temperature of the chilled water supply and the average temperature of the chilled return water of the chiller in the air-conditioning group control system;

[0043] S204. Control the frequency conversion of the chilled water pump in the air-conditioning group control system according to the average temperature of the chilled supply water and the average temperature of the chilled r...

Embodiment 2

[0099] Based on the control method of the air-conditioning group control system provided in the above-mentioned embodiment 1, an optional embodiment 2 of the present invention also provides a control device 100 for the air-conditioning group control system, specifically, Figure 4 shows an optional structural block diagram of the device, such as Figure 4 As shown, the device includes: a first acquisition unit 40, which is used to acquire the average temperature of the chilled water supply and the average temperature of the chilled return water of the chillers in the air-conditioning group control system; The average return water temperature controls the frequency conversion of chilled water pumps in the air conditioning group control system.

[0100]Further, the first acquisition unit includes: a first judging module, configured to judge the open state of the refrigerated electric butterfly valve in the current air-conditioning group control system in response to the triggere...

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Abstract

The invention discloses a control method and device for an air conditioner group control system. The method includes the steps that the refrigeration water supply average temperature and the refrigeration water return average temperature of a water chilling unit in the air conditioner group control system are obtained; and frequency conversion of a refrigeration water pump in the air conditioner group control system is controlled according to the refrigeration water supply average temperature and the refrigeration water return average temperature. By means of the control method and device for the air conditioner group control system, the problems that in the prior art, a large number of monitoring devices need to be installed in the air conditioner group control system, and consequently the number of system fault points of the system is increased, and the cost is relatively high are solved; the number of various detection devices is reduced, and meanwhile the construction cost and the maintenance cost are greatly reduced; and furthermore, the detection number of the fault points of the air conditioner group control system is also reduced.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a control method and device for an air conditioner group control system. Background technique [0002] When designing the group control system in the central air-conditioning machine room, in order to do energy-saving control, it is necessary to install temperature sensors, pressure sensors, flow meters, etc. Outdoor temperature and humidity sensor, the installation location is as follows: figure 1 shown. [0003] exist figure 1 Among them, the temperature sensor of the cooling main pipe is used to detect the temperature of the chilled water pipe in real time, and control the frequency conversion of the chilled water pump according to the temperature value; the temperature sensor of the cooling main pipe is used to detect the temperature of the cooling water pipe in real time, and control the frequency conversion of the cooling water pump and cooling tower fan ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/84F24F11/88F24F140/20
Inventor 姜春苗何玉雪杨金龙钟兴宁
Owner GREE ELECTRIC APPLIANCES INC
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