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Monitoring and cleaning early warning method of heat exchanger group operating condition based on dynamic envelope method

A dynamic envelope and operating status technology, applied in the direction of instrumentation, forecasting, data processing applications, etc., can solve the problem that there is no complete system and method for monitoring and cleaning early warning of heat exchanger groups in large petrochemical plants , to achieve long-term operation, reduce maintenance costs, and easy to use

Active Publication Date: 2022-07-15
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

So far, there is no complete system and method for the operation status monitoring and cleaning warning of heat exchanger groups in large petrochemical plants

Method used

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  • Monitoring and cleaning early warning method of heat exchanger group operating condition based on dynamic envelope method
  • Monitoring and cleaning early warning method of heat exchanger group operating condition based on dynamic envelope method
  • Monitoring and cleaning early warning method of heat exchanger group operating condition based on dynamic envelope method

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Embodiment Construction

[0021] The following describes in detail the method for monitoring, cleaning and early warning of the operation condition of the heat exchanger group based on the dynamic envelope method of the present invention with reference to the embodiments and the accompanying drawings.

[0022] The method of monitoring and cleaning the early warning of the operation condition of the heat exchanger group based on the dynamic envelope method of the present invention is to use such as figure 1 and figure 2 Shown is a method for a real-time monitoring system for the heat exchange efficiency of a heat exchanger in a large petrochemical plant. The monitoring results of the operating status of the heat exchanger are mainly affected by two factors, system factors and random factors. During the operation of the heat exchanger, the present invention focuses on the stability of the operating status and whether it is normal or not. If there are large variable system influence factors or large ran...

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Abstract

A method for monitoring, cleaning and early warning of the operating conditions of heat exchanger groups based on the dynamic envelope method: establishes the critical evaluation criteria of in-service heat exchangers, conducts critical evaluations on in-service heat exchangers, Group operation status monitoring and cleaning prediction control; select heat exchanger detection points, install integrated wireless temperature collectors on the tube-side inlet and outlet pipes and shell-side inlet and outlet pipes of the selected heat exchangers; build heat exchanger groups Wireless monitoring system network for operating conditions; build an online monitoring system platform, and output real-time dynamic waveforms of heat load, heat transfer coefficient and heat transfer efficiency of the heat exchanger; draw a point graph of the heat exchange efficiency trend value of the heat exchanger, in this figure The dynamic envelope diagram of heat exchange efficiency is drawn on the top; according to the dynamic envelope diagram of heat exchange efficiency of heat exchanger, the fouling condition analysis of heat exchanger and the early warning of heat exchanger cleaning are carried out. The invention can monitor the operation condition of the heat exchanger, and can diagnose the occurrence of faults in the early stage when the heat exchanger is fouled.

Description

technical field [0001] The invention relates to a method for monitoring and cleaning early warning of the operation condition of a heat exchanger group. In particular, it relates to a method for monitoring, cleaning and early warning of the operating conditions of heat exchanger groups based on the dynamic envelope method. Background technique [0002] As a strategic and basic industry in my country, petrochemical industry has formed a complete industrial chain related to it, which has driven the development of a large number of industries and is closely related to the development of the national economy. At the same time, the petrochemical industry is also a high-energy-consuming industry, and any small improvement in the production process will bring huge economic benefits. Heat exchanger is one of the most commonly used equipment in petrochemical production. It is not only widely used equipment to ensure the normal operation of specific technological processes, but also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/02G06F30/20G06F119/08
CPCG06Q10/04G06Q10/0639G06Q50/02
Inventor 李春树黄卫东李涛孙全胜李洪涛郭拂娟王艳丽李梦瑶高丽岩张雅贤
Owner CHINA PETROLEUM & CHEM CORP
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