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Simplified calculation method for energy efficiency index EEI of plate heat exchanger

A plate heat exchanger and simplified calculation technology, which is applied in the field of simplified calculation of the energy efficiency index EEI of plate heat exchangers, can solve the problems of missing measurement data, cumbersome calculations, and low accuracy of old heat exchangers

Active Publication Date: 2019-11-22
SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES +1
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Problems solved by technology

[0006] The present invention proposes a simplified calculation method for the energy efficiency index EEI of a plate heat exchanger, which is used to solve the cumbersome calculation of the energy efficiency index of the prior art heat exchanger during the calculation process, the low accuracy and the lack of relevant measurement data of the old heat exchanger. calculation problem

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  • Simplified calculation method for energy efficiency index EEI of plate heat exchanger
  • Simplified calculation method for energy efficiency index EEI of plate heat exchanger

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[0038] A simplified calculation method for the energy efficiency index EEI of a plate heat exchanger proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right" etc. is based on the orientation or positional relationship shown in the drawings , is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the r...

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Abstract

The invention provides a simplified calculation method for an energy efficiency index EEI of a plate heat exchanger. According to the method, the intermediate processes of solving the heat exchange amount Q, the total heat transfer coefficient k and the like in sequence can be omitted, the calculation process and the tedious degree are greatly simplified, and the precision problem deviating from the standard working condition and the energy efficiency (EEI) calculation problem of the old plate heat exchanger are solved.

Description

technical field [0001] The invention relates to the technical field of heat exchange energy efficiency evaluation, in particular to a simplified calculation method for the energy efficiency index EEI of a plate heat exchanger. Background technique [0002] There are many types of heat exchangers, and the working parameters are ever-changing. Patent CN 104036115B discloses a quantitative evaluation method of energy efficiency of heat exchangers, and proposes the energy efficiency index value EEI of plate heat exchangers and its quantitative evaluation method, providing a scientific realization for determining the energy efficiency of heat exchangers and their grades The method is written in the standard NB / T 47004.1-2017 Plate heat exchanger Part 1: Removable plate heat exchanger. However, this method directly uses the total heat transfer coefficient k and the flow pressure drop Δp of cold and hot fluids obtained from tests under standard conditions c , Δp h Calculate the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/10
CPCG06F17/10
Inventor 汤晓英鲁红亮任彬何爱妮李振华薛小龙陈战杨
Owner SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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