CN1834542A - Indoor air purifier using photocatalytic oxidation process - Google Patents

Indoor air purifier using photocatalytic oxidation process Download PDF

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CN1834542A
CN1834542A CN 200510033625 CN200510033625A CN1834542A CN 1834542 A CN1834542 A CN 1834542A CN 200510033625 CN200510033625 CN 200510033625 CN 200510033625 A CN200510033625 A CN 200510033625A CN 1834542 A CN1834542 A CN 1834542A
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solution
acid
photocatalyst
photocatalytic
photocatalytic oxidation
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CN 200510033625
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陈焕光
陈丽玉
王良焱
龚逸颜
陈晓
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广州市华之特奥因特种材料科技有限公司
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The present invention discloses a photocatalytic oxidizing chamber interior air-cleaning device. It is characterized by that the photocatalytic oxidizing treatment device is formed from 1-5 photocatalytic reaction units; every photocatalytic reaction unit is composed of carrier, honeycomb photocatalyst filter screen using titanium dioxide photocatalyst composite solution as photocatalyst and UV lamp, the distance from photocatalyst filter screen to UV lamp is 0.5-20cm, the photocatalyst is attached to the carrier by adopting impregnation, coating or spraying mode. Said invention can obtain good effect for cleaning air and killing bacteria.

Description

一种光催化氧化室内空气净化装置 A photocatalytic oxidation indoor air cleaning devices

技术领域 FIELD

本发明涉及一种光催化氧化室内空气净化装置。 The present invention relates to a photocatalytic oxidation indoor air cleaning devices.

技术背景空气是人类生存、发展的必备条件。 Technology background air is human survival, development prerequisites. 人的一生中有2/3以上的时间,是在室内度过的。 Person's life more than two-thirds of the time is spent indoors. 室内空气的质量,直接关系到人的身体健康和生命安全。 Indoor air quality is directly related to human health and safety. 近几年来,室内空气被指为是传播病毒的主要途径,室内环境污染被世界环保专家列入人类“十大杀手”黑名单。 In recent years, accused of indoor air is the main way the virus spread, indoor environmental pollution was included in the human world environmental experts "Ten killer" blacklist. 单纯使用传统空气净化产品如活性碳、空气清新剂、甲醛清除剂、紫外线(灯)、氧负离子、臭氧都无法达到真正净化空气的目的。 Simply use conventional air purification products such as activated carbon, air fresheners, formaldehyde scavenger, an ultraviolet (light), negative ions of oxygen, ozone can not achieve the purpose of purifying the air true. 利用光催化氧化技术净化空气的商业应用,在国内应运而生。 The use of photocatalytic oxidation air purification technology business applications in the country came into being. 中国专利03226080.6公开的室内空气净化装置,设有气流通道、三级除尘装置、活性碳过滤装置、用纳米二氧化钛作光催化剂泡沫陶瓷为固体载体,其缺点是光催化剂的活性和处理工艺欠佳,装置结构不够合理。 Chinese Patent No. 03226080.6 disclosed indoor air cleaning apparatus is provided with gas flow channels, three dust removing device, activated carbon filters, with titanium dioxide as photocatalyst is a solid ceramic foam carrier, the drawback is poor photocatalytic activity and treatment process, device structure is not reasonable.

发明的内容本发明的目的是针对现有室内空气净化机存在光催化剂的活性和处理工艺欠佳,装置结构不够合理的缺点,提供一种结构合理、光催化氧化剂的活性优良的光催化氧化室内空气净化机。 SUMMARY OF THE INVENTION The present invention is directed to the prior existence of poor indoor air cleaner photocatalytic activity and treatment process, the apparatus structure is not reasonable disadvantages and to provide reasonable structure, superior photocatalytic activity of the photocatalytic oxide oxidant chamber Air Purifier.

为达到上述目的,本发明采用如下的技术方案:一种光催化氧化室内空气净化装置,由机壳、以风机为动力源的空气导流装置、初级过滤除尘装置、光催化氧化处理装置、电路板、控制面板组成;其特征是:初级过滤除尘装置由过滤精度为1-5μm初级过滤网、过滤精度为0.5的中高效微尘过滤网和活性炭过滤网组成;空气导流装置由进风门、出风门、出风斗、风机、出风挡板驱动装置和机壳组成,出风斗和风机设置在光催化氧化处理装置之前,空气经出风斗和风机进入光催化氧化处理装置;光催化氧化处理装置由1-5个光催化反应单元构成;每个光催化反应单元由泡沫陶瓷、泡沫金属或以预先复合上一层多孔无机介质和采用金属或塑料作边框的泡沫塑料为载体,以中国专利200410026456.1的二氧化钛光触媒复合溶液作光催化剂(触媒),孔径为0.5-4mm,厚度为5-20m To achieve the above object, the present invention adopts the following technical solution: A photocatalytic oxidation indoor air cleaning devices, the chassis, the fan air flow to the power source means, a primary filter dust removal device, photocatalytic oxidation processing apparatus, circuitry plate, the control of panels; characterized in that: the primary filter by the dust removing device 1-5μm primary filtration accuracy of the filter, the filtration accuracy of 0.5 efficient dust filter and activated carbon filter screen; throttle by the intake air guide means, a damper, the wind scoop, turbine, and a wind barrier driving means composed of the casing, and the wind turbine bucket disposed before the photocatalytic oxidation treatment, by the air entering the fan and the wind scoop photocatalytic oxidation processing apparatus; photocatalysis oxidation means is constituted by a photocatalytic reaction unit 1-5; and each unit consists of a photocatalytic reaction of the ceramic foam, metal foam, or foam to the pre-complexed inorganic dielectric and a porous metal or plastic as a border for the carrier to Chinese patent 200410026456.1 titanium dioxide photocatalyst as a photocatalyst composite solution (catalyst), a pore diameter of 0.5-4mm, a thickness of 5-20m m的蜂窝状光触媒滤网和紫外灯组成,光触媒滤网在紫外灯的二侧,紫外灯为1-5个,光触媒滤网与紫外灯的距离为0.5-20cm;光催化剂以浸渍、涂复或喷涂方式附着在载体上,浸渍、涂复或喷涂的次数为1-10次,然后在20-180℃干燥20-180min;装置内设有负离子发生装置。 m honeycomb filter and UV lamp photocatalyst composition, the photocatalyst filter of the sides of the UV lamp, the UV lamp is 1-5, and the distance from the UV lamp photocatalyst filter is 0.5-20cm; photocatalyst impregnated, coated or attached to the carrier spraying, dipping, or spray coating times to 10 times, and then dried at 20-180 deg.] C 20-180min; means equipped with a negative ion generating apparatus.

所述出风斗和风机可以设置在光催化氧化处理装置之后,空气经光催化氧化处理之后再经出风斗和风机排出。 The wind turbine may be disposed in the bucket and after the photocatalytic oxidation treatment apparatus, after the air through the photocatalytic oxidation process and then by the winds and the fan discharge.

所述中国专利200410026456.1的二氧化钛光触媒复合溶液的制备方法包括下列步骤:A.二氧化钛光触媒溶液的调制a.将含钛水溶液经离子交换后,加入碱溶液形成含有氢氧化钛的胶体溶液;b.在(a)所得的胶体溶液中加入有机酸,形成均一溶液;有机酸与胶体溶液中的氢氧化钛的摩尔比为0.1-0.2∶1;上述的有机酸为酒石酸、苹果酸、乳酸、柠檬酸、乙醇酸、苦杏仁酸、酪酸、炭酸、甲酸、乙酸、顺丁烯二酸、硼酸、富马酸或丙酸;c.从(b)形成的均一溶液中分离出氢氧化钛固体,用去离子水洗至水层的电导率不超过10μS·℃M-2;d.将(c)中洗好的氢氧化钛固体分散在去离子水中,加入过氧化氢溶液,氢氧化钛固体与过氧化氢摩尔比为1∶0.5-1.5,加热至90-150℃,4-120小时后,冷却至5-20℃,得到带有络合基的锐钛型二氧化钛光触媒水溶液,溶液的PH值为6.5-7.0,粒径不超 The Chinese patent 200410026456.1 titanium dioxide prepared photocatalyst composite solution comprising the following steps: A titanium dioxide photocatalyst solution modulating a containing the aqueous solution of titanium ion-exchanged, added to an alkali solution to form a colloid solution containing titanium hydroxide; b. At... (a) the resulting colloid solution was added an organic acid to form a homogeneous solution; molar ratio of organic acid to the colloidal solution of titanium hydroxide is 0.1-0.2:1; said organic acid is tartaric acid, malic acid, lactic acid, citric acid , glycolic acid, mandelic acid, butyric acid, carbon acid, formic acid, acetic acid, maleic acid, boric acid, fumaric acid or propionic acid;. c isolated from the homogeneous solution (b) is formed in the solid titanium hydroxide, with with deionized water until the conductivity of the aqueous layer is no more than 10μS · ℃ M-2;. d (c) to titanium hydroxide in the washed solid was dispersed in deionized water, hydrogen peroxide solution was added, and over the solid titanium hydroxide 1:0.5-1.5 molar ratio of hydrogen peroxide, and heated to 90-150 deg.] C, after 120 hours, cooled to 5-20 deg.] C, to obtain anatase type titanium dioxide photocatalyst with an aqueous solution of the complexing group, PH value of the solution 6.5-7.0, particle size not exceeding 50nm;上述的过氧化氢的重量百分浓度为5-60%;B.含有电气石粉的金属氧化物混合粉末的调制a.氧化钙70-90重量%,氧化铝3-15重量%,氧化镁2-6重量%,以及电气石粉4-10重量%,按配比混合形成均一体系的混合粉末;b.将(a)中得到的混合粉末在600-700℃的温度下保温烧结2-3小时;c.将(b)中得到的经过加工烧结过的含有电气石粉的金属氧化物混合粉末用粉碎机粉碎,使粉末的粒子天才达到10μm以下;将(A)调制的二氧化钛光触媒溶液与(B)制得的含有电气石粉的金属氧化物粉末混合,制成发生负离子的二氧化钛光触媒复合溶液;添入含有电气石粉的金属氧化物粉末的量占二氧化钛光触媒复合溶液的2%-10%。 50 nm; the weight percent concentration of the hydrogen peroxide is 5-60%;.. B metal oxide powder mixture containing a modulated electrical powder 70-90 wt% CaO, 3-15 wt% aluminum oxide 2-6 wt% magnesium and 4-10 wt% tourmaline powder, forming mixed powder by mixing ratio homogeneous system; b. (a) with the obtained mixed powder at a temperature of 600-700 deg.] C incubation sintering 2-3. h;. c the (b) obtained after processing the sintered metal oxide powder mixture containing tourmaline powder with a grinder, the particles of the powder reaches 10μm or less genius; (a) a titanium dioxide photocatalyst prepared solution ( B) the obtained metal oxide powder containing tourmaline powder mixed to prepare a titanium dioxide photocatalyst composite solution occurred anions; insertion of a metal oxide powder containing tourmaline powder accounts for 2-10% of the titanium dioxide photocatalyst composite solution.

所述中国专利200410026456.1的二氧化钛光触媒复合溶液的制备方法,在于A.步骤中所调制得到的二氧化钛光触媒溶液中还可以加入各相当于氢氧化钛质量的千分一到万分之一的表面活性剂和增粘剂;表面活性剂为羧酸盐、硫酸酯、磷酸盐或聚合乙二醇类或多价醇类表面活性剂;所采用的增粘剂为羧甲基纤维素、乙基纤维素、蒙脱石、甲基纤维素或丙烯酸类增粘剂。 The Chinese Patent titanium dioxide photocatalyst composite solution prepared in 200410026456.1, and that the titanium oxide photocatalyst as solution A. Step modulation can also be obtained each surfactant was added titanium hydroxide mass corresponds to a thousandth to one ten thousandth and a tackifier; a surfactant carboxylates, sulfates, phosphates or polymeric glycols or polyvalent alcohol surfactant; tackifier used was carboxymethyl cellulose, ethyl cellulose , montmorillonite, methyl cellulose or an acrylic thickener.

所述紫外灯优选C波段紫外灯。 The C-band ultraviolet lamp is preferably an ultraviolet lamp.

所述光催化滤网与紫外灯的距离优选1.0-10cm。 The photocatalytic filter and the UV lamp is preferably from 1.0-10cm.

所述光催化反应单元的紫外灯优选2-3个。 The photocatalytic reaction is preferably an ultraviolet lamp unit 2-3.

所述光催化滤网中的载体优选预先复合上一层多孔无机介质的泡沫塑料聚氨酯或聚酯。 The photocatalytic sieve in advance on the carrier is preferably a polyester or a polyurethane foam layer composite porous inorganic medium.

所述光催化滤网中的载体泡沫塑料预先复合的多孔无机介质为硅藻土、粘土、天然沸石、分子筛、SiO2、磷灰石或类似多孔无机物。 The photocatalytic sieve carrier pre-foam porous inorganic composite media is diatomaceous earth, clays, natural zeolites, molecular sieves, SiO2, inorganic porous apatite or the like. (载体泡沫塑料可先涂一层胶,再涂或撒上多孔无机介质粉末而制得)。 (Carrier may be coated with a layer of plastic foam, then coated or sprinkled with a porous inorganic dielectric powder prepared). 光触媒附着在多孔无机介质上后具有更大的表面积,光催化反应效率更高。 It has a larger surface area, the higher the efficiency of the photocatalytic reaction photocatalyst deposited on inorganic porous media.

所述出风门加装塑料过滤布。 The installation of the damper plastic filter cloth.

所述室内空气净化装置底部设有滚轮。 The indoor air purification apparatus provided with wheels on the bottom.

本装置的净化流程设计为,空气从进风门吸入,经初级过滤除尘装置与光催化氧化处理装置净化处理后,再经活性碳布过滤从出风门送出。 Purification process of the present apparatus designed to intake air from the intake throttle, after removal of the primary filter means and the processing means photocatalytic oxidation purification treatment, and then filtered through activated carbon discharged from the damper cloth.

本发明的优点和有益效果在于:由于光催化剂采用(自主研发的)中国专利200410026456.1发生负离子的二氧化钛光触媒复合溶液和特殊的处理工艺,结构合理,当空气吸入装置时,空气中的灰尘先经初级过滤除尘装置多重滤网过滤;在经过光催化氧化处理装置时,紫外线(灯)照射的光催化滤网,发生很强的光催化氧化作用,空气中的有毒有机物被无选择性地彻底氧化分解,细菌也同时被杀死,对空气的净化和灭菌的处理效果特别好。 Advantages and benefits of the present invention is that: since the photocatalyst use (self-developed) Chinese Patent No. 200410026456.1 titanium dioxide photocatalyst composite solution anions and special handling process takes place, reasonable structure, when the air intake device, dust in the air first by primary multi-screen filter filters the dust removing device; when passing through photocatalytic oxidation treatment, an ultraviolet (light) irradiated photocatalyst filter, a strong photocatalytic oxidation takes place, the air of toxic organic matter is decomposed completely non-selective oxidation , while the bacteria are killed, the treatment effect of purification and sterilization of the air is particularly good. 装置内设有负离子发生装置,使空气更加清新。 Apparatus equipped with a negative ion generating device, so that more fresh air.

附图说明 BRIEF DESCRIPTION

图1是本发明的结构原理(剖视)图。 1 is a structural principles of the present invention (sectional view) in FIG.

图2是本发明的外壳前视图。 FIG 2 is a front view of the housing of the present invention.

图3是风机置于光催化氧化处理装置后方(上方)时的结构示意图。 FIG 3 is a schematic view of the fan placed behind the photocatalytic oxidation processing apparatus (upward).

1-机壳 2-进风门 3-控制面板 4-出风门 5-滚轮 6-初级过滤网 7高效过滤网 8-活性炭过滤网 9-出风挡板驱动装置 11-电路板 12-负离子发生装置13-光催化过滤网 14-紫外灯 15-出风斗 16-风机 17-脚垫具体的实施方式下面结合附图和实施例进一步说明本发明,但不构成对本发明的任何限制。 1- intake throttle housing 2- 3- 4- a control panel roller shutter 5- 6- primary filter 7 efficient activated carbon filter filters 8- 9- 11- air outlet shutter drive circuit board 12- negative ion generation means 13- 14- photocatalytic filter 15 ultraviolet lamp wind turbine bucket 16- 17- footbed invention is further described below in conjunction with specific embodiments and examples the accompanying drawings, but does not constitute any limitation of the invention.

实施例1:图1、图2所示的光催化氧化室内空气净化装置为直立箱体式结构,由机壳1、以风机16为动力源的空气导流装置,由过滤精度为1-10μm初级微尘过滤网6、过滤精度为0.5-1μm的中级微尘过滤网7、活性炭过滤网8组成的初级过滤除尘装置,光催化氧化处理装置、电路板11、控制面板3组成;空气导流装置由进风门2、出风门4、出风斗15、贯流风机16、出风挡板驱动装置9和机壳1组成,空气经出风斗15和贯流风机16进入光催化氧化处理装置;光催化氧化处理装置由两个光催化反应单元组成,光触媒滤网厚度为10mm,C波段紫外灯与光触媒滤网的距离为2cm,光触媒滤网以孔径为0.5-4mm的蜂窝状聚氨酯与天然沸石复合材料为载体,固定在空气导流装置内;光触媒采用发生负离子的二氧化钛光触媒复合溶液,制备方法如下;(一)产品制造原料液的配制(1)将重量百分比 Example 1: The air guiding device 1, indoor photocatalytic oxidation air purification apparatus shown in FIG. 2 is a vertical box-type structure, the housing 1, the fan 16 to a power source, a filtering accuracy of 1-10μm primary dust filter 6, filtering accuracy of 0.5-1μm intermediate dust filter 7, the primary filter dust removal device activated carbon filter 8 consisting of photocatalytic oxidation processing apparatus, the circuit board 11, the composition of the control panel 3; air guide means by an intake damper 2, the damper 4, the wind scoop 15, cross flow fan 16, the air shutter driving device 9 and the casing 1 composed of air through the air outlet 15 and the bucket 16 into the cross flow fan photocatalytic oxidation treatment apparatus ; photocatalytic oxidation catalytic reaction apparatus consisting of two optical units, the photocatalyst filter thickness of 10mm, from the C-band ultraviolet lamp and the photocatalyst filter is 2cm, the sieve aperture photocatalyst cellular polyurethane and natural 0.5-4mm zeolite composite material as a carrier, fixed to the air guide; photocatalyst using titanium dioxide photocatalyst composite of anion solution occurred, was prepared as follows; formulation (a) manufacturing raw material liquid (1) the percentage by weight of 度50%的四氯化钛溶液用去离子水稀释60倍,随后用离子膜处理,转变为氯化氧钛水溶液;(2)将重量百分比浓度25%的氨水用去离子水稀释10倍,将其与(1)中所得的溶液以体积比1∶6混合,发生中和反应:(3)中和反应后,将溶液的PH值调至6.8,放置30分钟后用离心机除去上层的水分,留下的Ti(OH)4沉淀继续用去离子水清洗,直至上层液的电导率为10μS·CM-2为止,停止清洗。 Of a 50% titanium tetrachloride solution was diluted 60-fold with deionized water, followed by treatment with ion-exchange membrane, into an aqueous solution of titanium oxychloride; (2) 25% by weight concentration of aqueous ammonia was diluted 10 times with deionized water, and which (1) the resulting solution was mixed at a volume ratio of 1:6, neutralization reaction takes place: the rear (3) and after the reaction, the PH value of the solution was adjusted to 6.8, 30 minutes using a centrifuge to remove the upper layer the water, leaving the Ti (OH) 4 precipitate was washed with deionized water continued until the conductivity of the supernatant was far 10μS · CM-2, stop cleaning.

(二)将(一)中得到洗净过的氢氧化钛沉淀溶解于去离子水后,用作为安定剂的苹果酸处理,加入的量为氢氧化钛量的1/8(摩尔比)。 (Ii) the (a) obtained after washing off the precipitate titanium hydroxide dissolved in deionized water, treated with malic acid as a stabilizer, titanium hydroxide is added in an amount of 1/8 the amount (molar ratio). 苹果酸加入后,溶液的PH值呈酸性,用碱性物质将PH值调至7左右。 After the addition of malic acid, PH value of the solution is acidic, with an alkaline substance PH value was adjusted to about 7.

(三)用30%的过氧化氢处理(二)中得到的溶液,过氧化氢的加入量为氢氧化钛量的1.5倍(摩尔比),过氧化氢加入后,静止24小时,待反应完及过剩的过氧化氢彻底分解后,将此溶液加热至100℃,加热时间为6小时,冷却,得到白色的锐钛型氧化钛溶液。 (Iii) treated with 30% hydrogen peroxide (b) was obtained, the amount of hydrogen peroxide added was 1.5 times (molar ratio) of the amount of titanium hydroxide, the hydrogen peroxide is added, still for 24 hours, until the reaction after excess hydrogen peroxide and the complete decomposition, the solution was heated to 100 deg.] C, the heating time was 6 hours, cooled to obtain a white solution of anatase type titanium oxide. 然后在此溶液中加入各0.2毫克/克氢氧化钛的表面活性剂磷酸钠和增粘剂羧甲基纤维素钠,即制成了二氧化钛作光触媒(A)的水溶液。 Was then added to each 0.2 mg / g of titanium hydroxide in this solution, and the surfactant sodium sodium carboxymethyl cellulose thickener, i.e., made of titanium dioxide as a photocatalyst solution (A) is.

(四)在(三)中得到的A涂布液中添加入5%的经过加工烧结的含有电气石粉的金属氧化物混合粉末,即制成发生负离子的高效二氧化钛光触媒(B)复合水溶液。 A mixed powder containing a metal oxide powder is processed electrical sintered into 5% A coating solution obtained in (iii) in the (IV) was added, i.e. high titanium dioxide photocatalyst (B) made of a composite of anion solution occurs.

光触媒以喷涂方式附着在蜂窝状聚氨酯与天然沸石复合材料载体上,喷涂的次数为3次,然后在120℃下干燥60分钟。 Photocatalyst adhered by spraying on a honeycomb composite material of polyurethane and natural zeolite carrier, is three times the number of spray, and then dried at 120 ℃ at 60 minutes.

装置内设有负离子发生装置12,装置底部设有滚轮17。 Apparatus equipped with a negative ion generating means 12, bottom means 17 provided with rollers.

本装置在光催化试验温度25℃、湿度50%的条件下进行检测,开机时二甲苯和甲醛含量为6.50和4.22mg/m3,开机3小时后二甲苯和甲醛含量分别为0.42和0.16mg/m3。 This means photocatalytic test temperature 25 ℃, carried out at a humidity of 50% condition is detected, the boot xylene and formaldehyde content of 6.50 and 4.22mg / m3, 3 hours after start of xylene and formaldehyde content of 0.42 and 0.16mg / m3.

实施例2:例1光催化氧化室内空气净化装置中,紫外灯与光触媒滤网的距离改为5cm,其结果是:在光催化试验温度25℃、湿度50%的条件下进行检测,开机时二甲苯和甲醛含量为3.45和4.80mg/m3,开机3小时后二甲苯和甲醛含量分别为1.08和1.22mg/m3。 When detection light catalytic test temperature 25 ℃, under conditions of humidity of 50%, power: Example 2: Example 1 photocatalytic oxidation indoor air cleaning apparatus, a UV lamp and the distance to the photocatalyst filter 5cm, as a result xylene and formaldehyde content to 3.45 and 4.80mg / m3, 3 hours after start of xylene and formaldehyde contents were 1.08 and 1.22mg / m3.

实施例3例1光催化氧化室内空气净化装置中,光触媒以喷涂方式附着在蜂窝状聚氨酯与天然沸石复合材料载体上,喷涂的次数为5次,在120℃处理的时间为90分钟。 3 cases of a photocatalytic oxidation indoor air cleaning apparatus embodiment, the photocatalyst adhered by spraying a polyurethane and natural zeolite honeycomb composite carrier, the number of spraying 5 times at 120 deg.] C treatment time was 90 minutes.

其结果是:在光催化试验温度25℃、湿度50%的条件下进行检测,开机时二甲苯和甲醛含量为8.52和6.70mg/m3,开机3小时后二甲苯和甲醛含量分别为0.63和0.45mg/m3。 As a result: a light catalytic test temperature 25 ℃, detects a humidity of 50%, when the power-xylene and formaldehyde content to 8.52 and 6.70mg / m3, 3 hours after start of xylene and formaldehyde content were 0.63 and 0.45 mg / m3.

实施例4例1光催化氧化室内空气净化装置中,光触媒以浸渍方式附着在蜂窝状聚氨酯与天然沸石复合材料载体上,甩干,在120℃处理的时间60分钟,重复浸渍,甩干,在150℃处理120分钟。 Example 4 1 photocatalytic oxidation air purification device in the indoor, adhering photocatalyst by dipping in the polyurethane and natural zeolite honeycomb composite support, drying, processing time at 120 ℃ 60 minutes was repeated impregnation, drying, in 150 deg.] C for 120 minutes.

其试验结果是:在光催化试验温度25℃、湿度50%的条件下进行检测,开机时二甲苯和甲醛含量为7.80和9.65mg/m3,开机3小时后二甲苯和甲醛含量分别为0.38和0.35mg/m3。 The test results are: Photocatalytic Test temperature 25 ℃, detects a humidity of 50%, when the power-xylene and formaldehyde content to 7.80 and 9.65mg / m3, 3 hours after start of xylene and 0.38, respectively, and the formaldehyde content 0.35mg / m3.

实施例5例1光催化氧化室内空气净化装置中,将出风斗15和贯流风机16设置在光催化氧化处理装置之后(见图3),光触媒滤网以蜂窝状聚酯与天然沸石复合材料为载体,其结果是:在光催化试验温度25℃、湿度50%的条件下进行检测,开机时二甲苯和甲醛含量为6.50和4.22mg/m3,开机3小时后二甲苯和甲醛含量分别为0.60和0.20mg/m3。 5 cases a photocatalytic oxidation indoor air cleaning apparatus embodiment, the hopper 15 and the air outlet cross flow fan 16 is provided (see FIG. 3), a honeycomb filter Photocatalyst composite of polyester and natural zeolite after photocatalytic oxidation treatment apparatus as the carrier material, the result is: Photocatalytic test temperature 25 ℃, detects a humidity of 50%, when the power-xylene and formaldehyde content to 6.50 and 4.22mg / m3, 3 hours after start of xylene and formaldehyde content, respectively, 0.60 and 0.20mg / m3.

Claims (10)

  1. 1.一种光催化氧化室内空气净化装置,由机壳(1)、以风机(16)为动力源的空气导流装置、初级过滤除尘装置、光催化氧化处理装置、电路板(11)、控制面板(3)组成;其特征是:初级过滤除尘装置由过滤精度为1-5μm初级过滤网(6)、过滤精度为0.5的中高效微尘过滤网(7)和活性炭过滤网(8)组成;空气导流装置由进风门(2)、出风门(4)、出风斗(15)风机(16)、出风挡板驱动装置(9)和机壳(1)组成,出风斗(4)和风机(16)设置在光催化氧化处理装置之前;光催化氧化处理装置由1-5个光催化反应单元构成;每个光催化反应单元由泡沫陶瓷、泡沫金属或以预先复合上一层多孔无机介质和采用金属或塑料作边框的泡沫塑料为载体,以中国专利200410026456.1的二氧化钛光触媒复合溶液作光催化剂,孔径为0.5-4mm,厚度为5-20mm的蜂窝状光触媒滤网(13)和紫外灯(14)组成,光触媒滤网在紫外灯 A photocatalytic oxidation indoor air cleaning devices, the housing (1) to the fan (16) as a power source of the air deflector, the primary filter dust removal device, photocatalytic oxidation processing apparatus, the circuit board (11), control panel (3) composition; characterized in that: the primary filter by the dust removing device 1-5μm primary filtration accuracy of the filter (6), a filtration accuracy of 0.5 efficient dust filter (7) and the activated carbon filter (8) composition; guide means by the intake air damper (2), the damper (4), the wind scoop (15) the fan (16), an air shutter drive means (9) and the casing (1), with the winds (4) and the fan (16) disposed before the photocatalytic oxidation processing apparatus; photocatalytic oxidation processing apparatus 1-5 by the photocatalytic reactor units; each unit by the photocatalytic reaction ceramic foam, metal foam or a pre-compound and a porous inorganic dielectric foam as metal or plastic frame for the carrier to Chinese Patent titanium dioxide photocatalyst as a photocatalyst composite solution 200410026456.1, the pore size of 0.5-4mm, the thickness of the honeycomb filter photocatalyst (13 5-20mm of ) and the UV lamp (14), with the UV lamp photocatalyst filter 二侧,紫外灯为1-5个,光触媒滤网与紫外灯的距离为0.5-20cm;光催化剂以浸渍、涂复或喷涂方式附着在载体上,浸渍、涂复或喷涂的次数为1-10次,然后在20-180℃干燥20-180min;装置内设有负离子发生装置(12)。 Two sides, the UV lamp is 1-5, and the distance from the UV lamp photocatalyst filter is 0.5-20cm; photocatalyst impregnated, coated or attached to the carrier spraying, dipping, or spray coating times 1- 10 times, and then dried at 20-180 deg.] C 20-180min; means equipped with a negative ion generating means (12).
  2. 2.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是出风斗(15)和风机(16)设置在光催化氧化处理装置之后。 The photocatalytic oxidation chamber 1. The air purifying apparatus as claimed in claim, characterized in that the wind scoop (15) and the fan (16) disposed behind the photocatalytic oxidation processing apparatus.
  3. 3.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是二氧化钛光触媒复合溶液的制备方法包括下列步骤:A.二氧化钛光触媒溶液的调制a.将含钛水溶液经离子交换后,加入碱溶液形成含有氢氧化钛的胶体溶液;b.在(a)所得的胶体溶液中加入有机酸,形成均一溶液;有机酸与胶体溶液中的氢氧化钛的摩尔比为0.1-0.2∶1;上述的有机酸为酒石酸、苹果酸、乳酸、柠檬酸、乙醇酸、苦杏仁酸、酪酸、炭酸、甲酸、乙酸、顺丁烯二酸、硼酸、富马酸或丙酸;c.从(b)形成的均一溶液中分离出氢氧化钛固体,用去离子水洗至水层的电导率不超过10μS·CM-2;d.将(c)中洗好的氢氧化钛固体分散在去离子水中,加入过氧化氢溶液,氢氧化钛固体与过氧化氢摩尔比为1∶0.5-1.5,加热至90-150℃,4-120小时后,冷却至5-20℃,得到带有络合基的锐钛型二氧化钛光触媒水 3. The photocatalytic oxidation indoor air cleaning apparatus according to claim 1, characterized in that the method for preparing titanium dioxide photocatalyst composite solution comprising the steps of:.. A titanium dioxide photocatalyst solution modulating a containing the aqueous solution of titanium ion-exchanged, adding an alkali solution to form a colloid solution containing a titanium hydroxide;. b adding an organic acid in (a) obtained colloidal solution to form a homogeneous solution; molar ratio of organic acid to the colloidal solution of titanium hydroxide is 0.1-0.2:1 ; said organic acid is tartaric acid, malic acid, lactic acid, citric acid, glycolic acid, mandelic acid, butyric acid, carbon acid, formic acid, acetic acid, maleic acid, boric acid, fumaric acid or propionic acid;. c from ( b) forming a homogeneous solution of titanium hydroxide solid was separated, washed with deionized water to a conductivity of the aqueous layer is no more than 10μS · CM-2; d (c) to titanium hydroxide in the washed solid was dispersed in deionized water. water, hydrogen peroxide solution was added, the solid titanium hydroxide with the molar ratio of hydrogen peroxide 1:0.5-1.5 heated to 90-150 deg.] C, after 120 hours, cooled to 5-20 deg.] C, to give complexed with anatase type titanium dioxide photocatalyst is a water-based 溶液,溶液的PH值为6.5-7.0,粒径不超过50nm;上述的过氧化氢的重量百分浓度为5-60%;B.含有电气石粉的金属氧化物混合粉末的调制a.氧化钙70-90重量%,氧化铝3-15重量%,氧化镁2-6重量%,以及电气石粉4-10重量%,按配比混合形成均一体系的混合粉末;b.将(a)中得到的混合粉末在600-700℃的温度下保温烧结2-3小时;c.将(b)中得到的经过加工烧结过的含有电气石粉的金属氧化物混合粉末用粉碎机粉碎,使粉末的粒子天才达到10μm以下;将(A)调制的二氧化钛光触媒溶液与(B)制得的含有电气石粉的金属氧化物粉末混合,制成发生负离子的二氧化钛光触媒复合溶液;添入含有电气石粉的金属氧化物粉末的量占二氧化钛光触媒复合溶液的2%-10%。 Solution, PH of the solution is 6.5 to 7.0, particle diameter of not more than 50 nm; the weight percent concentration of the hydrogen peroxide is 5-60%;. B metal oxide powder mixture containing a modulated electrical powder calcium oxide. 70-90 wt%, 3-15 wt% alumina, 2-6 wt% MgO and 4-10 wt% tourmaline powder, forming mixed powder by mixing ratio homogeneous system;. b obtained in (a) of incubated mixed powder sintered at a temperature of 600-700 deg.] C for 2-3 hours;. c the (b) obtained after processing the sintered metal oxide powder mixture containing tourmaline powder pulverized with a grinder, the powder particles genius reaches 10μm or less; (a) a titanium dioxide photocatalyst prepared solution (B) obtained metal oxide powder containing tourmaline powder mixed to prepare a titanium dioxide photocatalyst composite solution occurred anions; insertion of a metal-containing oxide powder of tourmaline powder 2% to 10% of the amount of titanium dioxide photocatalyst composite solution.
  4. 4.根据权利要求3中所述的光催化氧化室内空气净化装置,其特征是二氧化钛光触媒复合溶液的制备方法,在于A.步骤中所调制得到的二氧化钛光触媒溶液中加入各相当于氢氧化钛质量的千分一到万分之一的表面活性剂和增粘剂;表面活性剂为羧酸盐、硫酸酯、磷酸盐或聚合乙二醇类或多价醇类表面表面活性剂;所采用的增粘剂为羧甲基纤维素、乙基纤维素、蒙脱石、甲基纤维素或丙烯酸类增粘剂。 4. The photocatalytic oxidation indoor air cleaning apparatus according to claim 3, characterized in that the preparation of the titanium dioxide photocatalyst composite solution, in that the titanium dioxide photocatalyst solution A. step is modulated corresponding to each of the obtained titanium oxide was added hydrogen mass thousandth to a millionth of a surfactant and a tackifier; a surfactant carboxylates, sulfates, phosphates or polymeric glycols or polyvalent alcohols surface surfactant; employed thickener is carboxymethyl cellulose, ethyl cellulose, montmorillonite, methyl cellulose or an acrylic thickener.
  5. 5.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是紫外灯为C波段紫外灯。 The photocatalytic oxidation chamber 1. The air purifying apparatus as claimed in claim, characterized in that the C-band ultraviolet lamp for the UV lamp.
  6. 6.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是光催化滤网与紫外灯的距离为1.0-10cm。 6. The photocatalytic oxidation indoor air cleaning apparatus according to claim 1, wherein the photocatalytic filter from the UV lamp is 1.0-10cm.
  7. 7.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是光催化反应单元的紫外灯为2-3个。 The photocatalytic oxidation chamber 1. The air purifying apparatus as claimed in claim, characterized in that the ultraviolet lamp unit photocatalytic reaction is 2-3.
  8. 8.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是光催化滤网中的载体为预先复合上一层多孔无机介质的泡沫塑料聚氨酯或聚酯。 Photocatalytic oxidation indoor air cleaning device according to claim 1 in any preceding claim, wherein the photocatalyst carrier is a pre-filter foam is a polyurethane or polyester layer of the porous inorganic composite media.
  9. 9.根据权利要求1中所述的光催化氧化室内空气净化装置,其特征是出风门(4)加装塑料过滤布。 9. The photocatalytic oxidation chamber 1. The air purifying apparatus as claimed in claim, characterized in that a damper (4) installation of a plastic filter cloth.
  10. 10.根据权利要求1-9中任一项光催化氧化室内空气净化装置,其特征是室内空气净化装置底部设有滚轮(5)。 10. a photocatalytic oxidation of any indoor air purification apparatus according to claims 1-9, characterized in that the roller is provided (5) the bottom of indoor air cleaning device.
CN 200510033625 2005-03-18 2005-03-18 Indoor air purifier using photocatalytic oxidation process CN1834542A (en)

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CN101935227A (en) * 2010-03-03 2011-01-05 张�杰 Surface-modified foamed ceramic carrier and manufacturing method thereof
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CN102401410A (en) * 2011-11-24 2012-04-04 上海多环油烟净化设备有限公司 Nano-titanium-dioxide photocatalyst wind-curtain range hood
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CN104394959B (en) * 2013-06-27 2016-06-08 李性宪 A wet dust collector air purification
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