Central air-conditioning water system debugging method, fault diagnosis method, operation optimization method

Abstract

The invention discloses a central air conditioning water system debugging method, a fault diagnosis method and an operation optimization method. A calculation method for constructing an association matrix and a basic loop matrix is adopted according to a fluid network analysis theory, water flow is designed through a balance valve branch of the central air conditioning water system, and an openingdegree value of the balance valve branch of the central air conditioning water system is calculated; and hydraulic balance debugging is carried out according to the calculated opening degree value, and meanwhile, the fault diagnosis and operation optimization are realized according to the contrastive analysis of data value monitored by a monitoring platform in real time and a set normal operationtarget value. The method has the advantages that a scientific basis is provided to the debugging of the central air conditioning water system, the hydraulic debugging efficiency is improved, meanwhile the fault diagnosis and the operation optimization of the water system are achieved, and safe and efficient operation of the system is guaranteed.

Description

technical field [0001] The invention relates to the field of central air-conditioning, in particular to a central air-conditioning water system debugging method, a fault diagnosis method, and an operation optimization method. Background technique [0002] The central air-conditioning water system is responsible for effectively transporting the cold and heat produced by the main engine of the energy station to the terminal equipment. The operating efficiency of the water system not only affects the effect of temperature and humidity control, but also directly affects the system's energy efficiency ratio and system performance. consumption status. At present, the COP value of the main engine of the energy station, the efficiency of the water pump, and the heat exchange efficiency of the terminal equipment are constantly improving. However, due to the problems in the transmission and distribution of the water system, the overall energy consumption and operation effect of the ce...

AI Technical Summary

Problems solved by technology

[0004] At present, the air conditioning water system rarely monitors the data in operation, and the opacity of data leads to difficulties in hydraulic debugging, fault diagnosis, and operation optimization

In actual engineering, the hydraulic balance debugging of the air-conditioning water system mainly adopts the compensation method, which requires repeated manual debugging, and in actual conditions, the site conditions are very complicated, and the hydraulic balance debugging of most projects not only greatly increases the time and frequency, but also cannot be achieved. The expected value, the system operation effect is not ideal

In addition, after the commissioning, the property management personnel cannot know the actual operation status of the air-conditioning system in real time, and can only know that the air-conditioning system is unreasonable or malfunctioning through the owner’s complaint or intuitive feeling. In the end, professional engineers still need to go to the site to carry out Test, troubleshoot, optimize operations

The above shows that the current hydraulic debugging, fault diagnosis, and operation optimization methods of the central air-conditioning water system are characterized by difficulty, time-consuming, high professionalism, and invisibility. Therefore, it is necessary to develop a system to realize the intelligent hydraulic debugging of central air-conditioning , fault diagnosis, operation optimization

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