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

A technology of central air conditioning and debugging methods, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problems of data opacity, data monitoring, and high degree of professionalism, so as to reduce repeated debugging and reduce the cost of time, the effect of improving accuracy

Active Publication Date: 2020-12-08
成都慧云阵信息技术有限公司
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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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  • Central air-conditioning water system debugging method, fault diagnosis method, operation optimization method

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Embodiment Construction

[0061] The present invention will be further described below with reference to the accompanying drawings and embodiments, and the mode of the present invention includes but not limited to the following embodiments.

[0062] Such as figure 1 Shown: Central air-conditioning water system commissioning method, including the following steps:

[0063] Step 1: Divide the branches of the central air-conditioning water system into balance valve branches with balance valves and ordinary branches without balance valves, fully open the balance valves of the balance valve branches in the central air-conditioning water system, and calculate The flow coefficient K of each balance valve branch when the balance valve is fully open, and the flow coefficient K is obtained by fitting according to the parameter data provided by the corresponding manufacturer of the balance valve;

[0064] Step 2: Collect the pressure values ​​at both ends of each balance valve through the pressure and temperature...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/38F24F11/64F24F11/84F24F11/88
CPCF24F11/38F24F11/64F24F11/84F24F11/88
Inventor 马永杰周文博曲金成
Owner 成都慧云阵信息技术有限公司
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