一种板式换热器控制系统及控制方法

By designing an automated plate heat exchanger control system, the problem of manual switching operation of plate heat exchangers in natural gas purification plants was solved, realizing automated control, improving production stability and safety, and reducing solution loss and the labor intensity of operators.

CN117091431BActive Publication Date: 2026-07-17PETROCHINA CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2022-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The switching operation of plate heat exchangers in natural gas purification plants requires manual operation, which involves frequent operations, many steps, and long time. This can easily lead to fluid interruption, flow fluctuations, and media cross-contamination, as well as safety risks and reduced equipment efficiency.

Method used

Design a plate heat exchanger control system, including multiple pipelines and valves, combining solenoid valves, shut-off valves and regulating valves, and realize automatic start/stop, switching, solution replacement, soaking, purging, solution recovery, sewage discharge and online flushing through the controller, eliminating the need for manual on-site operation.

Benefits of technology

It has enabled automated operation of plate heat exchangers, reduced the labor intensity of operators, avoided fluid interruption and media cross-contamination, improved production stability, reduced solution loss and wastewater treatment load, and reduced safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种板式换热器控制系统及控制方法,控制系统包括富液进口管线、富液出口管线、贫液进口管线、贫液出口管线、板式换热器、富液出口排气管线、贫液出口排气管线、置换贫液管线、富液排污管线、富液回收管线、贫液排污管线、贫液回收管线、浸泡除盐水管线、氮气吹扫管线和在线冲洗管线;优化设计各管线连接关系、各管线上相应设置调节阀、电磁阀或切断阀。本发明解决了天然气净化厂贫富液板式换热器在运行过程中运行、停运、待检修、待投运等切换操作需要现场人工手动操作,存在操作频繁、操作步骤多、开关阀门多、作业时间长等易导致操作事故的问题。
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