Operation diagnosis method and system for circulating water system

Abstract

The invention discloses an operation diagnosis method and system for a circulating water system. The method comprises the following steps of acquiring a flow chart of the circulating water system; based on the flow chart, calculating the flow velocity of circulating cooling water at each branch of the circulating water system and the inlet and outlet temperature difference according to physical parameters of the circulating cooling water and operating parameters of the circulating water system; and determining the branches needing to be adjusted in the circulating water system according to the flow velocity and the temperature difference of each branch. By the adoption of the method and the system, the hydraulic characteristics of all the branches can be calculated, the position needing to be debugged in the circulating cooling water system is determined, the problem of hydraulic disorder of the circulating water system is solved in a targeted manner, and the accuracy of adjusting the circulating water system is improved.

Description

technical field [0001] The invention relates to the technical field of circulating water systems, in particular to an operation diagnosis method and system of a circulating water system. Background technique [0002] In large industrial enterprises, the circulating cooling water system is one of the most important public engineering systems. However, the circulating cooling water system is huge and complex, and there is a lack of fine calculation tools in the design stage, resulting in the large margin design of most circulating cooling water systems, and the actual water consumption and power consumption are very high, resulting in water pumps that cannot operate under rated conditions. Operation, the amount of industrial circulating cooling water accounts for about 70% to 80% of the entire industrial water consumption, water saving is of great significance. [0003] The circulating cooling water system is a heterogeneous pipe network, that is, the pipe length and pipe dia...

AI Technical Summary

Problems solved by technology

The actual circulating cooling water system is much more complicated than the above examples. There are small branches under the large branch, and even more levels. The equipment in each branch is different, and the demand for circulating cooling water is different, which makes the problem of different distances in the pipe network It is more complicated, the resource pressure also changes, and the problem of hydraulic imbalance becomes more complicated. The hydraulic coupling phenomenon greatly increases the difficulty of adjusting the circulating cooling water system

At present, when the technicians in the field adjust the circulating cooling water system, they can only debug the valves of each branch or the main valve based on experience, and cannot judge which specific position of the circulating cooling water system needs to be debugged.

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