Circulated cooling water operation optimization control system for industrial enterprise

Abstract

The invention relates to an operation optimization control system used for circulated cooling water system in the relevant industry. Aiming at the problems existing in the traditional circulated cooling water system for an industrial enterprise, the invention provides an intelligent circulated cooling water operation optimization control system for an industrial enterprise. The specific technical scheme adopted by the invention is as follows: the circulated cooling water operation optimization control system for the industrial enterprise is characterized by consisting of the following five subsystems: an intelligent dynamic balance subsystem for a pipe network, an intelligent and efficient variable frequency control subsystem for a water circulating pump, a temperature collection and compensation subsystem, an optimized cooling subsystem and an energy consumption management subsystem for circulated cooling water operation.

Description

technical field [0001] The invention constructs an intelligent, high-efficiency and low-consumption operation optimization control system for cooling circulating water used in factories, which is applicable to the operation optimization control of cooling and circulating water systems in related industries. Background technique [0002] Statistics show that cooling water accounts for 70% of industrial water consumption on average, and its operation is one of the key factors to ensure the normal operation of related processes and one of the important links to ensure the quality of related products. At the same time, in view of its large volume and continuous cycle operation characteristics, the corresponding power consumption must be an important part of the energy consumption of related processes. In other words, the high-efficiency and low-consumption operation of the cooling circulating water system is one of the important factors that determine whether the business operat...

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Problems solved by technology

The process conditions depend on the production strategy of the industry and the enterprise itself, as well as the impact of changes in the corresponding market, which has a certain degree of randomness; for the region where the enterprise is located, the environmental conditions change according to a certain quasi-periodic feature throughout the year Yes, but it is combined with the change of process conditions, which will inevitably increase the complexity of the change characteristics of the overall load

From this point of view, it is quite difficult to completely realize the on-demand supply of the cooling circulating water system.

[0007] 3) The current cooling water circulation system in the factory has serious dynamic hydraulic balance problems;

On the one hand, although the static hydraulic balance valve plays the role of hydraulic balance and thermal balance in a certain sense, its adjustment is very complicated under changing operating conditions. Adaptive adjustments are made to the operation of the pump; due to the difficulty in achieving dynamic balance, the high-efficiency frequency conversion of the pump is essentially impossible to achieve

[0009] 4) The operation of the cooling water circulation system for industrial enterprises shows a large hysteresis;

[0011] 5) It is difficult to set the reasonable temperature of the cooling circulating water system;

[0013] 6) The matching control of cooling and circulation is difficult;

Therefore, for the optimal control of the operation of the cooling circulating water system, it is not comprehensive to only mention the optimization of the pipe network and the circulation power link.

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