Operating pinch point analysis and bypass optimal control of heat exchanger networks

LUO Xionglin; SUN Lin; WANG Chuanfang; ZHANG Junfeng; XIE Zengzhong

您当前的位置：

首页 >

文章列表页 >

Operating pinch point analysis and bypass optimal control of heat exchanger networks

更新时间：2025-12-10

- Operating pinch point analysis and bypass optimal control of heat exchanger networks
- CIESC Journal Issue 5, Pages: 1200-1206(2008)
- 作者机构：
  
  中国石油大学自动化研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 May 2008，
  
  Published：05 May 2008
- 稿件说明：
移动端阅览
LUO Xionglin, SUN Lin, WANG Chuanfang, et al. Operating pinch point analysis and bypass optimal control of heat exchanger networks[J]. CIESC Journal, 2008, (5): 1200-1206.
DOI：

LUO Xionglin, SUN Lin, WANG Chuanfang, et al. Operating pinch point analysis and bypass optimal control of heat exchanger networks[J]. CIESC Journal, 2008, (5): 1200-1206. DOI：

摘要

换热网络夹点设计法是从设计的角度，针对某一给定的典型操作条件而进行的，而炼油化工过程的生产条件经常在一定范围内波动。在实际的生产中，换热网络的操作夹点和最小温差与设计值往往不尽相同，为换热网络的优化控制带来了一定困难。因而近年来对于换热网络夹点技术以及旁路优化控制方面的研究不断深入，但将夹点技术与换热网络控制集成的方法仍不成熟。本文从操作的角度求解并分析换热网络结构已定或网络正在运行情况下的操作夹点，定性分析操作夹点的变化规律，并提出在操作夹点附近设置旁路实现网络的旁路优化控制，从而将夹点技术应用于换热网络旁路优化控制中。实例仿真表明，这一旁路优化控制方法在满足控制要求的同时明显降低了网络的总公用工程，验证了其有效性。

Abstract

Pinch design method of heat exchanger networks(HEN)can be done for a specific operational condition

however the operational condition always fluctuates in a certain range.During practical process operation

it is often difficult to implement optimal control

since operating pinch point and the minimum temperature difference deviate from the design values.Therefore the study of pinch technology and the bypass optimal control of HEN have caught more attention

but integration of pinch technology with HEN optimal control is still not well established.The operating pinch point was studied for a given HEN

and the change of operating pinch point was qualitatively analyzed.Bypass optimal control was proposed and the bypasses were placed around the operating pinch point.Through the bypass optimal control of HEN

to which pinch point technology was applied

the total utility cost was minimized

and at the same time the commands on control performance could be reached

which was shown by the simulation of a heat exchanger network.

关键词

Keywords

references

Views

1284

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Progress of solar photo-thermo-catalysis for ammonia synthesis and decomposition under mild conditions

Advantages and risks of swirling cooling granulation towers

A two-stage dual-channel deep learning model for chemical fault classification

The impact of novel flow channel structure with sudden-expansion ratio on seawater-activated battery

Prediction model for COD in petrochemical wastewater influent based on temporal-spatial dual-stream convolutional neural network

Related Author

No data

Related Institution

No data

⁰