Energy efficiency analysis method for pump operation in industrial circulating water system

Abstract

The invention discloses a method for analyzing the operation energy efficiency of a pump group of an industrial circulating water system to solve the problem that it is difficult to determine the operating state of the pump group in a circulating water flow process under variable working conditions. The present invention firstly establishes the characteristic model library of the water pump and the establishment of the energy efficiency model of the operation of the water pump and the pump group under variable working conditions; secondly, considers the whole pump group as an energy efficiency unit, and proposes the concept of the energy efficiency of the pump group operation, and in it On this basis, real-time monitoring and continuous analysis of the operating energy efficiency of the entire pump set is carried out. In the present invention, based on the model library of water pump power frequency operation characteristics, the values ​​of head, flow and shaft power under the corresponding frequency conditions are determined, and then the head and flow, efficiency and flow, and shaft power and flow under different frequency conditions are constructed. The respective explicit models. Based on the monitoring of various boundary condition parameter changes, the present invention quickly resets and operates under high-efficiency conditions according to the high-efficiency requirements of the system.

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 group in the industrial circulating water system, so as to solve the problem that it is difficult to determine the operating state of the pump group in the circulating water process under variable working conditions

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