Central air-conditioning refrigeration plant room group control management system

Abstract

The invention relates to a central air-conditioning refrigeration plant room group control management system. According to the technical scheme, the central air-conditioning refrigeration plant room group control management system comprises a supervisory control computer, an information input and output device and an Ethernet switch, wherein the information input and output device and an Ethernetswitch are connected with the supervisory control computer; the Ethernet switch is connected with a serial port server, a PLC and a main machine valve control box group, a refrigeration pump control cabinet group, a cooling pump control cabinet group, a cooling tower control cabinet group and a cooling tower valve control box group; the PLC is connected with a temperature sensor, a pressure sensor, a flow sensor and an outdoor atmospheric temperature and humidity sensor; a refrigeration pump control cabinet includes a refrigeration pump starting loop and performs starting and stopping and thespeed regulation control over a refrigeration pump; a cooling pump control cabinet includes a cooling pump starting loop and performs starting and stopping and the speed regulation control over a cooling pump; and a cooling tower control cabinet includes a cooling tower starting loop and performs starting and stopping and the speed regulation control over a cooling tower. The technical problems that the degree of automation is low and the operation of equipment is not balanced are solved, and the central air-conditioning refrigeration plant room group control management system is suitable forrefrigeration plant room systems of various pipeline connection topologies.

Description

technical field [0001] The invention relates to the field of industrial control, in particular to a central air-conditioning and refrigeration room group control management system. Background technique [0002] In modern buildings, more and more central air-conditioning systems are used, and the power consumption of the refrigeration room accounts for a considerable part of the total power consumption of the building. For commercial buildings, such as office buildings, shopping malls, and hotels, the power consumption of the refrigeration machine room can reach 30-35% of the total power consumption of the building. The same situation also occurs in industrial occasions. The refrigeration room is mainly used for air conditioning systems or process cooling requirements, and it also accounts for a considerable proportion of the total energy consumption of the factory. For example, in textile factories and electronic semiconductor factories, the operating power consumption of th...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is the technical problem in the prior

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