A kind of control method of central air-conditioning system

Abstract

The invention discloses a control method of a central air conditioning system. The method comprises the steps of S1, building a system measuring sensing network in an area; arranging a temperature sensor and a power metering device at a terminal; and arranging a measuring host which is in signal connection with a control host at the control host; S2, reading the terminal temperature data measuredby the temperature sensor and the terminal power data measured by the power metering through the metering host; reading instantaneous temperature data by the control host; and comparing with the instantaneous temperature data; and S3, analyzing in the following ways: decreasing the power of a positioning terminal and increasing the power of other terminals if the terminal power data of other terminals surrounding the positioning terminal with high terminal power data are low and the terminal temperature data of the positioning terminal is less than the terminal temperature data of other terminals; sending positioning alarming prompt if the difference between the terminal temperature data of the positioning terminal and the instantaneous temperature data is beyond the maximum data of otherterminals; and sending examination alarming prompt if the difference is less than the minimum data of other terminals.

Description

technical field [0001] The invention relates to the technical field of system risk estimation, and more specifically, it relates to a control method of a central air-conditioning system. Background technique [0002] Central air-conditioning system energy saving is an important part of the field of building energy conservation. As for how to achieve the goal of central air-conditioning system energy saving, on the one hand, the central air-conditioning system can be transformed through various technical means to achieve the goal; on the other hand, it can also be achieved through various management One of the management means is to control the power distribution on each terminal in the central air-conditioning system. [0003] In a large-area connected area, multiple terminals will be set up for temperature control, and the power on multiple terminals will be controlled by on-site personnel through the switches on the terminals. If it is set to 25°C in one area, since the t...

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Problems solved by technology

[0003] In a large-area connected area, multiple terminals will be set up for temperature control, and the power on multiple terminals will be controlled by on-site personnel through the switches on the terminals. If it is set to 25°C in one area, since the temperature in different areas is different, the power distribution between the terminals in the above-mentioned areas will also be differentiated, which will reduce the overall efficiency of the central air conditioning system, and the temperature difference between adjacent areas will also decrease. Increased heat exchange efficiency between areas, so that some terminals are always in the maximum consistent operating state, while other terminals are in a low-load operating state or even not operating, making this part of the terminal vulnerable. When this part of the terminal is damaged, other terminals are also damaged. It will increase the workload in the subsequent working hours and be vulnerable, reducing the service life of the central air conditioning system

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