CN109432893A - 分离式喷漆有机废气VOCs模块化治理装置 - Google Patents
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Abstract
本发明公开了一种分离式喷漆有机废气VOCs模块化治理装置,包括漆雾吸附装置,其在喷漆室废气排放通道上依次设置迷宫式过滤器、玻璃纤维过滤器和活性炭纤维吸附器,活性炭纤维吸附器的壳体内活动设置有通过脱吸净化装置进行处理的活性炭纤维滤芯;脱吸净化装置包括由第一、二反应器组成的双模激发净化器,第一反应器上设置有空气补入口,第一反应器内腔中设置有电子激发器,第一反应器通过粒子风机与第二反应器相连,第二反应器的内腔中设置有蛭石捕集板和光子激发反应器,并通过设置有循环风机的循环管道与电加热脱吸器相连。本发明结构简单,使用方便,能够大幅提高喷漆有机废气的处理效果。
Description
技术领域
本发明涉及有机废气环保治理技术领域,尤其是涉及一种分离式喷漆有机废气VOCs模块化治理装置。
背景技术
VOCs是一类挥发性的有机物,多数有毒有害,大量来自于交通工具、电镀、喷漆以及有机溶剂使用过程中所排放的废气。由于在产品表面喷漆可以达到装饰、美观和防腐等功效,因此应用范围越来越广泛,而目前喷漆的涂料仍以溶剂为主,漆膜表面及漆雾中的有机溶剂(苯、甲苯、二甲苯等)直接挥发至车间空气中,影响大气质量和人体健康,日益引起对喷漆产生的VOCs的重视。
发明内容
本发明提供一种分离式喷漆有机废气VOCs模块化治理装置,目的在于解决目前喷车车间受到VOCs污染的问题。
为实现上述目的,本发明可采取下述技术方案:
本发明所述的分离式喷漆有机废气VOCs模块化治理装置,包括漆雾吸附装置,所述漆雾吸附装置包括在喷漆室废气排放通道上依次设置的迷宫式过滤器、玻璃纤维过滤器和活性炭纤维吸附器,所述活性炭纤维吸附器的壳体内活动设置有活性炭纤维滤芯,所述活性炭纤维滤芯通过脱吸净化装置进行处理;所述脱吸净化装置包括由第一反应器和第二反应器组成的双模激发净化器,所述第一反应器上设置有空气补入口,第一反应器内腔中设置有电子激发器,第一反应器通过粒子风机与所述第二反应器相连,所述第二反应器的内腔中设置有蛭石捕集板和光子激发反应器,且第二反应器通过设置有循环风机的循环管道与电加热脱吸器相连,所述电加热脱吸器的内腔中设置有活性炭纤维滤芯活动卡接位。
所述活性炭纤维吸附器包括两级串联设置的活性炭纤维滤芯,每级活性炭纤维滤芯为4个。
所述活性炭纤维吸附器内设置有可燃气体浓度报警装置。
本发明提供的分离式喷漆有机废气VOCs模块化治理装置,结构简单,使用方便,能够大幅提高喷漆有机废气的处理效果。具体优点如下:
1.本发明适用于中小型喷漆室有机废气VOCs的治理,采用分离式结构,避免了在线处理的复杂控制系统和风阀转换系统,降低了成本;
2.本发明首次采用连续通过式热空气进行有机废气脱附,脱附的废气由热空气带走,避免了溶剂积聚燃烧爆炸的危险;
3.本发明首次将常温下激发高能空气粒子净化有机废气的方式用于喷漆有机废气的治理,不需要燃烧设备,可实现常温下的完全治理;
4.本发明首次采用滤芯式活性炭纤维进行有机废气的吸附,其比表面积大,滤芯吸附快,脱附时间短;吸附时采用单元化组合方式,可根据喷漆室的排放总量进行组合;脱附采用分离式脱附方式,每次可脱附一个单元,每个脱附单元可配套4个吸附单元;实现了喷漆大风量、脱附小风量的模块化浓缩处理方式。
附图说明
图1是本发明的方框图。
图2是图1中漆雾吸附装置的结构示意图。
图3是图1中脱吸净化装置的结构示意图。
具体实施方式
如图1所示,本发明所述的分离式喷漆有机废气VOCs模块化治理装置由漆雾吸附装置和脱吸净化装置两部分组成。以下以具体实施例来说明本发明。
如图2所示的中/小型喷漆室M安装有半龙门移动送风系统和空调送风装置,为了保持室内空气质量,在喷漆室M的排风口设置有漆雾吸附装置。具体地,漆雾吸附装置包括在喷漆室M废气排放通道上依次设置的迷宫式过滤器1.1、玻璃纤维过滤器1.2和活性炭纤维吸附器1.3。一般情况下,迷宫式过滤器1.1和玻璃纤维过滤器1.2能够捕集95%的漆雾,活性炭纤维吸附器1.3的吸附率应保持90%以上,使处理后的有机废气直接进行高空排放,排放浓度符合国家排放标准。上述活性炭纤维吸附器1.3的数量根据喷漆室M排放的有机废气总量确定,通常并联设置两个(见图2)或多个,且在每个活性炭纤维吸附器1.3进口处均设置有阀门。为了提高有机废气吸附率,每个活性炭纤维吸附器1.3内的活性炭纤维滤芯1.4均采用两级串联结构,且每级设置4个活性炭纤维滤芯1.4。为了方便脱吸进行循环利用,活性炭纤维滤芯1.4采用插装式结构安装在活性炭纤维吸附器1.3壳体内。此外,在活性炭纤维吸附器1.3内安装有可燃气体浓度报警装置。
对有机废气进行吸附的活性炭纤维滤芯1.4,饱和后由人工在工作间隙抽出,更换为新的活性炭纤维滤芯1.4,以满足喷漆室M连续工作要求。抽出的饱和活性炭纤维滤芯1.4则送至脱吸净化装置进行脱附处理。
如图3所示,脱吸净化装置包括用于有机废气脱附的电加热脱吸器2.9和由第一反应器2.1和第二反应器2.2组成的用于净化脱附废气的双模激发净化器。具体地,第一反应器2.1上设置有空气补入口2.3,第一反应器2.1内腔中安装有电子激发器2.4(好天环保科技发展湖北有限公司,HTDZ-J1型),第一反应器2.1通过粒子风机2.5与第二反应器2.2相连,第二反应器2.2的内腔中安装有蛭石捕集板2.6和光子激发反应器2.7(好天环保科技发展湖北有限公司,HTGZ-J1型),且第二反应器2.2通过安装有循环风机2.8的循环管道与电加热脱吸器2.9相连。而电加热脱吸器2.9的内腔中则安装有精确温控的电加热器和用于卡装活性炭纤维滤芯的活动卡接位2.10。为了节省能源,电加热器可采用分组加热的形式。
脱吸净化装置采用周期性工作模式,每次的处理时间约为1小时,每次至少能够处理4个活性炭纤维滤芯1.4。使用时,将从漆雾吸附装置抽出的活性炭纤维滤芯1.4插装在电加热脱吸器2.9中,启动加热器和循环风机2.8,将腔体内的空气加热至设定温度,活性炭纤维滤芯1.4在热空气的作用下达到脱附再生;脱附析出的有机废气由热空气带至第二反应器2.2中,大部分有机废气被蛭石捕集板2.6吸附;同时,从空气补入口2.3进入第一反应器2.1的新鲜空气(约占脱吸净化装置中总空气量的10%),通过电子激发器2.4被激发成高激发态的、具有强氧化性的、活性极高的粒子,然后经粒子风机2.5送入第二反应器2.2,并在第二反应器2.2内涡流板的作用下产生涡流,从而与有机废气充分混合接触;在第二反应器2.2中,混合气通过光子激发反应器2.7的再次激发,在不同污染物对光子的共振吸收条件下,通过控制光量子的能力使污染物被最大激发的光谱光的诱导下产生氧化反应,挥发性有机物通过链引发反应、自由基传递反应和链终止反应,最终被氧化成H2O和CO2,随气体一起排出。
(1)·O3 + OH- → ·HO2 + ·O2 -
·HO2 →·O2 - + H+
(2)·O3 +·O2 - → ·O3 - +O2
·O3 -+ H+ →·HO3
·HO3 →·HO + O2
·HO + O3 →·HO4
·HO4 →·HO2 + O2
(3)·HO4 + ·HO4 → H2O2 + O2
·HO4 + ·HO3 → H2O2 + O3 + O2
经过处理的净化空气则在电加热脱吸器2.9和第二反应器2.2中循环使用。
由此可见,本发明所述的分离式喷漆有机废气VOCs模块化治理装置吸附、脱附净化效果良好,高效、安全,极大地改善了喷漆车间的工作环境,降低了有机废气对大气环境的污染。
Claims (3)
1.一种分离式喷漆有机废气VOCs模块化治理装置,包括漆雾吸附装置,其特征在于:所述漆雾吸附装置包括在喷漆室废气排放通道上依次设置的迷宫式过滤器(1.1)、玻璃纤维过滤器(1.2)和活性炭纤维吸附器(1.3),所述活性炭纤维吸附器(1.3)的壳体内活动设置有活性炭纤维滤芯(1.4),所述活性炭纤维滤芯(1.4)通过脱吸净化装置进行处理;所述脱吸净化装置包括由第一反应器(2.1)和第二反应器(2.2)组成的双模激发净化器,所述第一反应器(2.1)上设置有空气补入口(2.3),第一反应器(2.1)内腔中设置有电子激发器(2.4),第一反应器(2.1)通过粒子风机(2.5)与所述第二反应器(2.2)相连,所述第二反应器(2.2)的内腔中设置有蛭石捕集板(2.6)和光子激发反应器(2.7),且第二反应器(2.2)通过设置有循环风机(2.8)的循环管道与电加热脱吸器(2.9)相连,所述电加热脱吸器(2.9)的内腔中设置有活性炭纤维滤芯活动卡接位(2.10)。
2.根据权利要求1所述的分离式喷漆有机废气VOCs模块化治理装置,其特征在于:所述活性炭纤维吸附器(1.3)包括两级串联设置的活性炭纤维滤芯(1.4),每级活性炭纤维滤芯(1.4)为4个。
3.根据权利要求1所述的分离式喷漆有机废气VOCs模块化治理装置,其特征在于:所述活性炭纤维吸附器(1.3)内设置有可燃气体浓度报警装置。
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