CN105258223A - 一种防治雾霾的空气净化器 - Google Patents
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
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Abstract
本发明公开了一种空气净化器,包括壳体和设置在壳体内的净化部件,空气净化器还包括与净化部件固定连接的活动侧壁,净化部件还包括第一过滤网和第二过滤网,第二过滤网设置在第一过滤网远离进风口的一侧,第一过滤网和第二过滤网可滑动地设置在滑槽中,所述第一过滤网和第二过滤网之间夹有催化剂层。雾霾空气经过本发明所述空气净化器之后,PM2.5颗粒、有机污染物、氮氧化物及硫氧化物都降低到极低水平,有效净化了车内空气,保护了室内人员的呼吸系统健康。
Description
技术领域
本发明涉及汽车空气净化领域,具体涉及一种防治雾霾的空气净化器。
背景技术
雾霾天气是一种大气污染状态,雾霾是对大气中各种悬浮颗粒物含量超标的笼统表述,尤其是PM2.5(空气动力学当量直径小于等于2.5微米的颗粒物)被认为是造成雾霾天气的“元凶”。
霾,也称灰霾(烟雾)空气中的灰尘、硫酸、硝酸、有机碳氢化合物等粒子也能使大气混浊。将目标物的水平能见度在1000-10000米的这种现象称为轻雾或霭(Mist)。形成雾时大气湿度应该是饱和的(如有大量凝结核存在时,相对湿度不一定达到100%就可能出现饱和)。由于液态水或冰晶组成的雾散射的光与波长关系不大,因而雾看起来呈乳白色或青白色和灰色。二氧化硫、氮氧化物和可吸入颗粒物是雾霾的主要组成。
雾霾对人体产生的危害如下:
(1)对呼吸系统的影响
霾的组成成分非常复杂,包括数百种大气化学颗粒物质。其中有害健康的主要是直径小于10微米的气溶胶粒子,如矿物颗粒物、海盐、硫酸盐、硝酸盐、有机气溶胶粒子、燃料和汽车废气等,它能直接进入并粘附在人体呼吸道和肺泡中。尤其是亚微米粒子会分别沉积于上、下呼吸道和肺泡中,引起急性鼻炎和急性支气管炎等病症。对于支气管哮喘、慢性支气管炎、阻塞性肺气肿和慢性阻塞性肺疾病等慢性呼吸系统疾病患者,雾霾天气可使病情急性发作或急性加重。如果长期处于这种环境还会诱发肺癌。
(2)对心血管系统的影响
雾霾天对人体心脑血管疾病的影响也很严重,会阻碍正常的血液循环,导致心血管病、高血压、冠心病、脑溢血,可能诱发心绞痛、心肌梗塞、心力衰竭等,使慢性支气管炎出现肺源性心脏病等。
目前,随着交通拥堵,人们越来越长时间的待在各种交通工具中,由于汽车空间狭小,其受雾霾的影响最为巨大。汽车对于车内空气的净化,一般是通过空气净化器进行吸附过滤净化。
CN104121633A公开了一种空气净化器,包括:进气口;出气口;过滤器,滤除从进气口进入的空气中的污染物;风扇,将过滤器过滤后的空气导向出气口;空气路径开关,在第一状态下,使得过滤后的空气沿从风扇至出气口的第一空气路径从出气口排出;在第二状态下,将过滤后的空气导向过滤器的进气侧;加热器,将过滤器及空气加热以使得污染物从过滤器脱附;以及紫外光源,发出紫外光以照射空气,使得从过滤器脱附的污染物分解。
现有技术的空气净化器,均是通过过滤或吸附的作用来净化空气,但空气中的有机污染、氮氧化物或硫氧化物却不能通过过滤或吸附去除,即使有少数几种采用化学催化的空气净化器,其也不能在常温下,短时间内将封闭空气的空气中污染物降低到ppm级。
发明内容
本发明的目的在于提出一种防治雾霾的空气净化器,该空气净化器可以净化雾霾空气,在室温下,将空气中的有机污染物(甲醛、甲醇、苯等芳香族污染物)、硫氧化物和氮氧化物快速分解,能有效净化使用空间的空气。
为达此目的,本发明采用以下技术方案:
一种防治雾霾的空气净化器,包括壳体和设置在壳体内的净化部件,空气净化器还包括与净化部件固定连接的活动侧壁,净化部件还包括第一过滤网和第二过滤网,第二过滤网设置在第一过滤网远离进风口的一侧,第一过滤网和第二过滤网可滑动地设置在滑槽中,所述第一过滤网和第二过滤网之间夹有过滤层,所述过滤层由防治雾霾的组合物组成,所述组合物包括如下组分,
A)6%-20%的Al2O3负载的Ce/Zr复合氧化物,其各组分的摩尔比Ti:Ce:Zr为1:(0.05-0.1):(0.05-0.1);
B)3%-8%的V2O5/(MoO3)0.4(WO3)0.6/TiO2复合氧化物,其中V:Mo:W:Ti的摩尔比为(0.5-2):0.4:0.6:1;
C)余量的ZSM-5分子筛。
所述第一过滤网和第二过滤网为活性炭过滤网。
本发明通过选取特定组分A和组分B,使得该组合物产生协同效应,该组合物对雾霾的防治有效率达到100%,使得该催化剂产生协同效应。将其应用于空气净化器夹层,雾霾空气经过所述空气净化器之后,该组合物对雾霾的防治有效率达到100%,同时活性高,室温下即能起到催化作用,将空气中的甲醛、苯等有机物降解称为二氧化碳,并将对人体有害的硫氧化物、氮氧化物催化氧化为较高价态,进而用活性炭吸附,将各种污染物降低至ppm级,有效净化了室内空气,保护了室内人员的呼吸系统健康。
具体实施方式
本发明通过下述实施例对本发明的空气净化器进行说明。
实施例1
一种防治雾霾的组合物,所述组合物如下组分,
A)10%的Al2O3负载的Ce/Zr复合氧化物,其各组分的摩尔比Ti:Ce:Zr为1:0.08:0.08;
B)5%的V2O5/(MoO3)0.4(WO3)0.6/TiO2复合氧化物,其中V:Mo:W:Ti的摩尔比为2:0.4:0.6:1;
C)余量的ZSM-5分子筛。
将所述组合物封闭于两层过滤网中间,形成净化部件。
空气净化器包括壳体和设置在壳体内的净化部件,空气净化器还包括与净化部件固定连接的活动侧壁,净化部件还包括第一过滤网和第二过滤网,第二过滤网设置在第一过滤网远离进风口的一侧,第一过滤网和第二过滤网可滑动地设置在滑槽中,所述第一过滤网和第二过滤网之间夹有催化剂层。
将本发明的所述空气净化器置于20平米的封闭公寓房间内,在PM2.5为600时测试,经室内空气中有机污染物、氮氧化物、硫氧化物浓度调高到10毫克/立方米。启动所述空气净化器,1小时后测试室内的空气,其PM2.5值为0,有机污染物、氮氧化物和硫氧化物的含量均降到0.01毫克/立方米以下,远远小于GB/T18883-2002规定的室内空气质量标准的要求。
对比例1
组分A含量15%,不含组分B,其余条件不变,1小时后的PM2.5值为38,有机污染物、氮氧化物和硫氧化物的含量为0.5毫克/立方米以上。
对比例2
组分B含量15%,不含组分A,其余条件不变,1小时后的PM2.5值为31,有机污染物、氮氧化物和硫氧化物的含量为0.5毫克/立方米以上。
对比例3
将组分C的ZSM-5分子筛替换为三氧化二铝,其余条件不变,1小时后的PM2.5值为43,有机污染物浓度为0.1毫克/立方米左右。
上述实施例及对比例说明,在室温下,单独的组分A和组分B,均达不到组分A和组分B联用的效果,说明本发明的组合物A和B组分之间存在特定的联系,其产生了协同效应。
申请人声明,本发明通过上述实施例来说明本发明的空气净化器,但本发明并不局限于上述空气净化器,即不意味着本发明必须依赖上述详细催化剂才能实施所述空气净化。所属技术领域的技术人员应该明了,对本发明的任何改进,对本发明产品各原料的等效替换及辅助成分的添加、具体方式的选择等,均落在本发明的保护范围和公开范围之内。
Claims (1)
1.一种空气净化器,包括壳体和设置在壳体内的净化部件,空气净化器还包括与净化部件固定连接的活动侧壁,净化部件还包括第一过滤网和第二过滤网,第二过滤网设置在第一过滤网远离进风口的一侧,第一过滤网和第二过滤网可滑动地设置在滑槽中,所述第一过滤网和第二过滤网之间夹有过滤层,所述过滤层由防治雾霾的组合物组成,其特征在于,
所述组合物包括如下组分,
A)6%-20%的Al2O3负载的Ce/Zr复合氧化物,其各组分的摩尔比Ti:Ce:Zr为1:(0.05-0.1):(0.05-0.1);
B)3%-8%的V2O5/(MoO3)0.4(WO3)0.6/TiO2复合氧化物,其中V:Mo:W:Ti的摩尔比为(0.5-2):0.4:0.6:1;
C)余量的ZSM-5分子筛。
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