高密度聚乙烯管耐氯氧化试验系统设计

doi:10.19491/j.issn.1001-9278.2021.12.012

中国塑料 ›› 2021, Vol. 35 ›› Issue (12): 70-75.DOI: 10.19491/j.issn.1001-9278.2021.12.012

高密度聚乙烯管耐氯氧化试验系统设计

孙霖杰¹, 张经伟¹, 陈树山²(), 赖焕生³(), 魏作友⁴

^1.福州大学石油化工学院，福州 350116
^2.深圳中广核工程设计有限公司，广东深圳 518000
^3.中山大学中法核工程与技术学院，广东珠海 510275
^4.上海纳川核能新材料技术有限公司，上海 201306

收稿日期:2021-06-15 出版日期:2021-12-26 发布日期:2021-12-22
基金资助:
国家基金项目:自然科学基金项目(51705078)

Design of chlorine oxidation resistance test system for high density polyethylene pipes

SUN Linjie¹, ZHANG Jingwei¹, CHEN Shushan²(), LAI Huansheng³(), WEI Zuoyou⁴

^1.College of Chemical Engineering，Fuzhou University，Fuzhou 350116，China
^2.Sino?French Institute of Nuclear Engineering and Technology，Sun Yat?sen University，Zhuhai 519082，China
^3.Institut Franco?chinois de l’Energie Nucléaire，Zhuhai 510275，China
^4.Shanghai Nachuan Nuclear Power New Materials and Technology Co，Ltd，Shanghai 201306，China

Received:2021-06-15 Online:2021-12-26 Published:2021-12-22
Contact: CHEN Shushan,LAI Huansheng E-mail:chenshushan@cgnpc.com.cn;sheng158@hotmail.com;chenshushan@cgnpc.com.cn

摘要/Abstract

摘要：

为了研究高密度聚乙烯（PE?HD）管的耐氯氧化性能，基于ASTM F2263标准，设计了一种封闭循环试验系统，可在流动状态下通过改变温度、压力和有效氯含量加速试样的氧化失效。结果表明，该系统可独立测试24根DN 20的PE?HD管状试样，可编程逻辑控制器（PLC）作为控制主机可以控制管路的压力、温度和流量，再加上耦合各传感器，可实现可视化的人机界面，内置的报警系统可保证试验的安全可靠。本试验系统可用于对PE?HD输水管的耐氯氧化性能进行评价。

关键词: 高密度聚乙烯管, 氧化失效, 试验系统

Abstract:

To investigate the chlorine oxidation resistance of high density polyethylene （PE?HD） pipes， a closed cycle test system was designed on the basis of the ASTM F2263 standard. The test system accelerated the oxidation failure of samples through changing the temperature， pressure， and available chlorine content under the flowing condition. The results indicated that the system could measure the 24 DN 20 PE?HD tubular samples independently， and the programmable logic controller could be used as a control host to control the pressure， temperature， and flow of the pipelines. Furthermore， the visual human?computer interface could be realized through coupling with various sensors， and the built?in alarm system could ensure the safety and reliability of the test. Therefore， the test system can be used to evaluate the chlorine oxidation resistance of the PE?HD pipes.

Key words: high density polyethylene pipe, oxidation failure, test system

中图分类号:

TQ320.66⁺2

孙霖杰, 张经伟, 陈树山, 赖焕生, 魏作友. 高密度聚乙烯管耐氯氧化试验系统设计[J]. 中国塑料, 2021, 35(12): 70-75.

SUN Linjie, ZHANG Jingwei, CHEN Shushan, LAI Huansheng, WEI Zuoyou. Design of chlorine oxidation resistance test system for high density polyethylene pipes[J]. China Plastics, 2021, 35(12): 70-75.

图/表 11

图1 设计流程图

Fig.1 Design flow chart

试验参数	单位	最小值	最大值	允许误差
有效氯含量	mg/L	0	50	1
水温	℃	50	90	1
空气温度	℃	50	90	1
氧化还原电位	mV	825	-	10
流量	L/min	0.23	1.10	0.02
pH	-	6.5	8.0	0.1
管道压力	MPa	0.61	0.83	0.02

表1 试样所处试验条件

Tab.1 Test conditions of samples

图2 系统结构示意图

Fig.2 System structure diagram

图3 试样装夹图

Fig.3 Sample assembly drawing

图4 试验工艺流程图

Fig.4 Test process flow chart

分组编号	管道压力1/ MPa	管道压力2/MPa
1	0.61	0.75
2	0.63	0.77
3	0.65	0.79
4	0.66	0.8
5	0.68	0.82
6	0.69	0.83

表2 试样的管道压力

Tab.2 Pipes′ pressure of sample

图5 支路压力流量调节原理示意图

Fig.5 Schematic diagram of the principle of branch pressure and flow adjustment

图6 系统控制系统结构示意图

Fig.6 Schematic diagram of system control system structure

图7 试验系统测试界面

Fig.7 Test interface of the system

图8 系统界面

Fig.8 Display of the system

图9 系统控制流程图

Fig.9 System control flow chart

参考文献 17

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高密度聚乙烯管耐氯氧化试验系统设计

Design of chlorine oxidation resistance test system for high density polyethylene pipes

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