A method for efficient utilization of old heat exchange equipment for improving industrial heat exchange network

Abstract

The invention discloses an efficient old heat exchange equipment utilization method for improving an industrial heat exchange network. The method comprises the steps that firstly, the heat exchange area is configured step by step according to a plurality of priorities on the basis of the condition of minimum old heat exchange equipment modification; secondly, heat exchange units are configured forremaining heat exchangers according to two priorities by adopting the heat exchange equipment maximum utilization principle; and lastly, new heat exchangers are matched with the remaining needed heatexchange area on the premise that the requirements are met. The old heat exchange units are matched with the needed heat exchangers step by step and layer by layer to achieve optimal utilization of all the heat exchange equipment, therefore, the area reuse rate of the old heat exchange equipment is greatly increased, and the investment cost is reduced.

Description

technical field [0001] The invention relates to the field of energy-saving optimization in the chemical process industry, especially in the field of optimization and transformation of heat exchange network systems, and proposes a method for efficient utilization of old heat exchange equipment. Background technique [0002] The heat exchange network is an essential subsystem in the chemical process system and an important part of energy recovery and utilization in high-energy-consuming industrial processes. The rationality and efficiency of its design directly determine the energy consumption and economy of the process system . Existing networks are generally designed with reference to the energy-saving standards at that time, but the rapidly developing pluralistic society forces the heat exchange network to continuously adapt to the higher requirements of industrial reform, energy conservation and emission reduction. Therefore, optimizing and transforming the existing netwo...

AI Technical Summary

Problems solved by technology

However, the current traditional reuse method only uses the difference between the existing heat exchange area and the required heat exchange area as the standard for the reuse of old equipment, which has a great waste of energy and resources; and usually requires each The required area is different from all the original heat transfer areas to determine whether it can match, resulting in a large number of invalid calculations

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