Method for analyzing operation energy efficiency of pump set of industrial circulating water system

Abstract

The invention discloses a method for analyzing the operation energy efficiency of a pump set of an industrial circulating water system, which is used for solving the problem of high judgment difficulty for the operation state of the pump set in a circulating water process under a changeable working condition. The method comprises the following steps of: firstly, establishing a water pump feature model library and an operation energy efficiency model of a water pump and a water pump set under the changeable working condition; and secondly, by considering the whole water pump set as an energy efficiency unit, proposing a concept of operation energy efficiency of the water pump set, and on the basis, carrying out real-time monitoring and continuous analysis on the operation energy efficiency of the whole pump set. In the invention, a lift value, a flow value and a shaft power value under a corresponding frequency condition are determined on the basis of a water pump power frequency operation feature model, and then, respective corresponding explicit models of lift and flow, efficiency and flow as well as shaft power and flow under different frequency conditions are established. The pump set can rapidly reset to operate under a high-efficiency condition according to the requirement of high efficiency of the system through monitoring the change of various boundary condition parameters.

Description

technical field [0001] The invention relates to a method for analyzing the operation energy efficiency of circulating water pumps and pumps operating in different complex combinations in the industrial circulating water flow process under variable working conditions. Background technique [0002] The industrial circulating water process is an indispensable auxiliary link of the main process of different industries. Its role is to ensure that the main process is safe and smooth, and the products meet the production requirements. However, due to the unavoidable expectation of the development scale of the enterprise in the main process design process, the operation management party proposed a higher process design load intensity. In the design process of the design institute, in order to ensure that the design load strength proposed by the user can be realized under the design conditions, the design of the main process flow usually retains a safety margin of 10~20%. These two ...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for analyzing the energy efficiency of the pump unit in the industrial circulating water system to solve the operating state of the pump unit in the circulating water process under variable working conditions Difficult to determine problem

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