CN202865041U - 短流程循环水排污水制超纯水系统 - Google Patents

短流程循环水排污水制超纯水系统 Download PDF

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CN202865041U
CN202865041U CN 201220558736 CN201220558736U CN202865041U CN 202865041 U CN202865041 U CN 202865041U CN 201220558736 CN201220558736 CN 201220558736 CN 201220558736 U CN201220558736 U CN 201220558736U CN 202865041 U CN202865041 U CN 202865041U
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王书祥
郑超泉
古建辉
韩岳如
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Zhengzhou Hengbo Environmental Technology Co ltd
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ZHENGZHOU HENGBO TECHNOLOGY Co Ltd
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Abstract

一种短流程循环水排污水制超纯水系统,循环水排污水与凝聚剂储存及投加装置和杀菌剂储存及投加装置投加的次氯酸钠和聚合铁混合后,直接进入自清洗过滤器,自清洗过滤器出水进入管式微滤装置,管式微滤装置出水进入管式微滤出水水箱,经管式微滤出水升压泵提压后送入一级反渗透保安过滤器,且在管式微滤出水水箱与一级反渗透保安过滤器之间的管路上设置盐酸储存及投加装置、阻垢剂投加装置和还原剂投加装置;一级反渗透保安过滤器经一级反渗透高压泵再次提压后进入一级反渗透装置,一级反渗透装置出水进入缓冲水箱,缓冲水箱出水与二级反渗透加碱装置投加的分析纯级氢氧化钠混合后进入二级反渗透装置;二级反渗透装置出水进入渗透水箱,渗透水箱出水经EDI升压泵升压后进入EDI保安过滤器,EDI保安过滤器出水进入EDI装置。

Description

短流程循环水排污水制超纯水系统
技术领域
本实用新型涉及一种循环水排污水制超纯水系统,特别是涉及一种短流程电厂循环水排污水制超纯水系统。 
背景技术
循环水系统是电厂的耗水大户,将循环水排污水处理后制出超纯水,供电厂锅炉补水使用,是发电企业节能减排的重要措施。目前在电厂广泛使用的循环水排污水制超纯水系统由澄清池、清水箱、清水泵、介质过滤器、中空纤维超滤装置、两级反渗透装置、电化学除盐装置组成。该装置工艺流程长,设备级数多、数量多,厂区占地庞大,投资高,已不能满足“资源友好型、环境节约型”的绿色电厂建设要求;另一方面,电厂循环水排污水温度随机组负荷变化而变动,当温度变化超出澄清池进水温度变化允许值2℃/h时,澄清池容易翻池,出水不合格,严重影响后续设备的运行周期、使用寿命和出水水质。 
发明内容
本实用新型的目的是提供一种工艺流程短、设备级数少、数量少,厂区占地较小、投资节省的循环水排污水制超纯水系统。 
为实现上述目的,本实用新型采用以下技术方案: 
一种短流程循环水排污水制超纯水系统,循环水排污水与凝聚剂储存及投加装置和杀菌剂储存及投加装置投加的次氯酸钠和聚合铁混合后,直接进入自清洗过滤器,自清洗过滤器出水进入管式微滤装置,管式微滤装置出水进入管式微滤出水水箱,经管式微滤出水升压泵提压后送入一级反渗透保安过滤器,且在管式微滤出水水箱与一级反渗透保安过滤器之间的管路上设置盐酸储存及投加装置、阻垢剂投加装置和还原剂投加装置;所述的一级反渗透保安过滤器经一级反渗透高压泵再次提压后进入一级反渗透装置,一级反渗透装置出水进入缓冲水箱,缓冲水箱出水与二级反渗透加碱装置投加的分析纯级氢氧化钠混合后进入二级反渗透装置;二级反渗透装置出水进入渗透水箱,渗透水箱出水经EDI升压泵升压后进入EDI保安过滤器,EDI保安过滤器出水进入EDI装置。
所述的自清洗过滤器为不锈钢孔径过滤器,过滤精度为500μm。 
所述的一级反渗透保安过滤器和EDI保安过滤器的滤芯均采用定期更换的大流量折叠滤芯,进水方式为里进外出。 
所述的管式微滤装置配有自动反洗装置和人工化学清洗装置。 
所述二级反渗透装置的浓排水回收至管式微滤出水水箱,作为一级反渗透装置的进水。 
EDI装置浓排水回收至缓冲水箱,作为二级反渗透装置的进水。 
采用上述技术方案的本实用新型,与现有处理工艺相比,在工艺流程上取消了澄清池、清水箱、清水泵、介质过滤器和中空纤维超滤装置,以自清洗过滤器和管式微滤装置代替,减小了预处理单元的设备级数和数量,减少一级动力提升,在建造成本、运行成本和占地指标上均明显优于现有循环水排污水制超纯水系统,出水完全满足绿色电站锅炉补给水水质要求,出水电阻率可达到18兆欧姆。自清洗过滤器、管式微滤装置的运行不受循环水排污水温度变化影响,出水水质稳定,使用寿命长。 
附图说明
图1是本实用新型的系统示意图。
图2是管式微滤装置平面示意图。 
具体实施方式
如图1、图2所示,循环水排污水与凝聚剂储存及投加装置19和杀菌剂储存及投加装置20投加的次氯酸钠和聚合铁混合后,直接进入自清洗过滤器1,去除大直径漂浮物和颗粒物;自清洗过滤器1出水进入管式微滤装置2,在此直径大于0.2μm的菌体、病毒、悬浮固体等将被分离,出水SDI<4,满足一级反渗透装置7进水要求;管式微滤装置2出水进入管式微滤出水水箱3,经管式微滤出水升压泵4提高压力至0.2MPa左右,与盐酸储存及投加装置16、阻垢剂投加装置17、还原剂投加装置18投加的盐酸、阻垢剂和亚硫酸氢钠混合反应后,进入一级反渗透保安过滤器5,保安过滤器防止事故状况下直径>5μm的颗粒物对一级反渗透装置7膜元件的损伤;一级反渗透保安过滤器5经一级反渗透高压泵6提升至1.2-1.6MPa后,进入一级反渗透装置7;一级反渗透装置7出水进入不锈钢制缓冲水箱8;缓冲水箱8出水与二级反渗透加碱装置15投加的分析纯级氢氧化钠混合,调整pH后由二级反渗透高压泵9升压至0.8-1.0MPa进入二级反渗透装置10;二级反渗透装置10出水进入不锈钢制渗透水箱11,其出水经EDI升压泵12升压至0.6MPa左右进入EDI保安过滤器13,EDI保安过滤器精度为1μm,其出水进入EDI装置14,系统出水电阻率可达到18兆欧姆。 
管式微滤装置2配套有自动反洗装置,当管式微滤装置2进出口压差或出水浊度达到设定值时,系统自动进入反洗程序。 
管式微滤装置2配套有人工化学清洗装置,当管式微滤装置2跨膜压差超出规定值0.12MPa时,系统提示进行化学清洗。 
二级反渗透装置10浓排水回收至管式微滤出水水箱3,作为一级反渗透装置7的进水。 
EDI装置14浓排水回收至缓冲水箱8,作为二级反渗透装置10的进水。 
自清洗过滤器1、管式微滤装置2和一级反渗透装置7的排水进入全厂废污水处理系统,处理后回用。 
需要指出的是,本实用新型的具体应用方式并不限于上述具体的描述,凡是在此基础上进行的简单变形应用均可认为是落在本实用新型保护范围之内。 

Claims (6)

1.一种短流程循环水排污水制超纯水系统,其特征在于:循环水排污水与凝聚剂储存及投加装置(19)和杀菌剂储存及投加装置(20)投加的次氯酸钠和聚合铁混合后,直接进入自清洗过滤器(1),自清洗过滤器(1)出水进入管式微滤装置(2),管式微滤装置(2)出水进入管式微滤出水水箱(3),经管式微滤出水升压泵(4)提压后送入一级反渗透保安过滤器(5),且在管式微滤出水水箱(3)与一级反渗透保安过滤器(5)之间的管路上设置盐酸储存及投加装置(16)、阻垢剂投加装置(17)和还原剂投加装置(18);所述的一级反渗透保安过滤器(5)经一级反渗透高压泵(6)再次提压后进入一级反渗透装置(7),一级反渗透装置(7)出水进入缓冲水箱(8),缓冲水箱(8)出水与二级反渗透加碱装置(15)投加的分析纯级氢氧化钠混合后进入二级反渗透装置(10);二级反渗透装置(10)出水进入渗透水箱(11),渗透水箱(11)出水经EDI升压泵(12)升压后进入EDI保安过滤器(13),EDI保安过滤器(13)出水进入EDI装置(14)。
2.根据权利要求1所述的短流程循环水排污水制超纯水系统,其特征在于:所述的自清洗过滤器(1)为不锈钢孔径过滤器,过滤精度为500μm。
3.根据权利要求1所述的短流程循环水排污水制超纯水系统,其特征在于:所述的一级反渗透保安过滤器(5)和EDI保安过滤器(13)的滤芯均采用定期更换的大流量折叠滤芯,进水方式为里进外出。
4.根据权利要求1所述的短流程循环水排污水制超纯水系统,其特征在于:所述的管式微滤装置(2)配有自动反洗装置和人工化学清洗装置。
5.根据权利要求1所述的短流程循环水排污水制超纯水系统,其特征在于:所述二级反渗透装置(10)的浓排水回收至管式微滤出水水箱(3),作为一级反渗透装置(7)的进水。
6.根据权利要求1所述的短流程循环水排污水制超纯水系统,其特征在于:所述EDI装置(14)浓排水回收至缓冲水箱(8),作为二级反渗透装置(10)的进水。
CN 201220558736 2012-10-29 2012-10-29 短流程循环水排污水制超纯水系统 Expired - Lifetime CN202865041U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104986902A (zh) * 2015-07-31 2015-10-21 中国能源建设集团广东火电工程有限公司 一种超纯水的制备装置及方法
CN106186407A (zh) * 2016-08-31 2016-12-07 四川优普超纯科技有限公司 具有耗材识别功能的纯水机
CN111003857A (zh) * 2019-12-31 2020-04-14 浙江太阳石水处理有限公司 一种脱盐水系统

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104986902A (zh) * 2015-07-31 2015-10-21 中国能源建设集团广东火电工程有限公司 一种超纯水的制备装置及方法
CN106186407A (zh) * 2016-08-31 2016-12-07 四川优普超纯科技有限公司 具有耗材识别功能的纯水机
CN111003857A (zh) * 2019-12-31 2020-04-14 浙江太阳石水处理有限公司 一种脱盐水系统
CN111003857B (zh) * 2019-12-31 2021-04-16 浙江太阳石水处理有限公司 一种脱盐水系统

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