应用于恒温恒湿洁净称量室内空气过滤的新型过滤介质
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- 发布日期：2017-05-18 11:37:52
跟着大家对室内空气质量重要性知道的进步,空气过滤已成为许多家庭的需求,包含运用于居处的供暖与通风空调体系(HVAC)、便携式空气净化器和真空吸尘器,因而空气过滤的发展趋势是供给更优秀的过滤功能和更长运用周期的更领先的过滤体系。在这些运用中,各种过滤体系运用了不一样技能和规模广泛的过滤介质。一台专有过滤设备下降颗粒物浓度的功率是设备的过滤功率及其空气处理量的函数。
As you know the importance of progress on indoor air quality, air filtration has become a lot of family needs, including heating and ventilation and air conditioning used in home system (HVAC), portable air purifier and vacuum cleaner, and development trend of air filter is for better filtering function and longer cycle by using more advanced filtration system. In these applications, various filtering systems employ different skills and a wide range of filtering media. The power of a proprietary filtration equipment to decrease particle concentration is a function of the equipment's filtration power and its air handling capacity.
这篇文章论说的是最新的关于商用和居处HVAC、便携式空气净化器和真空吸尘器的过滤介质立异技能。由于这些运用,使过滤介质具有卓越功能的技能取得了突破性的进展。运用该过滤介质技能可到达最小过滤值(MERV)16级过滤水平而压下降于MERV10过滤器。与别的商品过滤器比较,由功能优秀的介质制成的便携式空气净化器可使高效空气过滤(HEPA)的洁净空气输出率(CADR)进步10%～30%;真空吸尘器运用由新研发的过滤介质制成的过滤器,其功能有极大的进步。
This article is about the theory of commercial and home HVAC, portable air purifier and vacuum cleaner filter media innovation new skills. Thanks to these applications, breakthroughs have been made in the ability of the filter medium to perform outstanding functions. Using this filter medium, you can reach the minimum filter value (MERV), level 16 filtration level, while the pressure drops in the MERV10 filter. Compared with other commercial filters, portable air cleaners made of medium function can make excellent and efficient air filter (HEPA) of the clean air output rate (CADR) improved 10% ~ 30%; vacuum cleaners use filter made of newly developed filter media, its function has great progress.
空气中的颗粒物与空气净化.有确切的科学数据标明,高度污染的环境可严重危害公众健康。最新的研讨显现颗粒物浓度与死亡率成正比,在颗粒物浓度较高的城市中日子的人比在颗粒物浓度较低的城市中日子的人寿命短。死亡率与细微颗粒物的浓度有关。呈现明显的环境空气污染,特别是在许多市区内呈现烟雾,致使大家认为室内的空气比周围的空气洁净。但是很多的研讨标明,室内某些空气污染物的浓度大于室外。依据近来20年以来的科学研讨,室内空气质量对人类健康疑问有严重的影响,如发作头疼、厌恶、呼吸体系感染病和别的病症。考虑到大多数人,特别是婴儿和老年人,在户内(或在家、校园或在作业场合)的时刻达80%～90%,健康疑问起因于室内污染物的可能性添加。由于每个人天天吸入10～20m3的空气,呼吸体系是生物气溶胶和别的颗粒物质的首要进进口和堆积处。
Particulate matter in the air and air purification. Exact scientific data indicate that highly polluting environments can seriously endanger public health. Recent studies show that particle concentration is directly proportional to mortality, and in cities with higher concentrations of particulates, people live shorter days than those in cities with lower concentrations of particulates. The mortality rate is related to the concentration of fine particles. Air pollution is obvious, especially in many urban areas, which results in the fact that indoor air is cleaner than the surrounding air. But many studies show that indoor air pollutants are more dense than outdoors. According to recent 20 years of scientific research, indoor air quality has a serious impact on human health problems, such as headache, aversion, respiratory infections and other diseases. In view of the fact that most people, especially infants and the elderly, have 80% to 90% hours indoors (or at home, on campus or at work), health problems arise from the possibility of indoor pollutants. As each person inhaled 10 to 20m3 of air every day, the respiratory system is the primary inlet and accumulation of aerosols and other particulate matter.
室内空气污染物是空气中的有害物质,其规模从颗粒物到有机/无机化合物和氡气,这篇文章内容仅触及榜首部分:颗粒物(包含生物气溶胶)。颗粒物是被用来描绘非常小的固体或液体颗粒的专门名词,其颗粒尺度约0.005～500μm。各个颗粒在巨细、化学组分和物理功能上都能够各不相同。大气气溶胶浓度和室内颗粒物浓度密切有关。根据这一研讨,能够得出室内空气比室外空气有更高颗粒物浓度的定论。大家活动在空气相对密闭的大厦内将增大浓度的差别。大家发现,室内和室外颗粒物巨细分布类似,但室内亚微米级颗粒物的份额更大。室内颗粒物可由室外空气、抽烟、火炉、壁炉、居住者的活动、地毯、帷幕和宠物等而引入。
Indoor air pollutants are hazardous substances in air, ranging in size from particulate matter to organic / inorganic compounds and radon gas. This article touches only the first part: particulate matter (including biological aerosols). Particles are special terms used to describe very small solid or liquid particles whose particle sizes range from about 0.005 to 500 m. Each particle is different in size, chemical composition, and physical function. Atmospheric aerosol concentration is closely related to indoor particulate matter concentration. According to this study, it can be concluded that indoor air has higher particle concentration than outdoor air. Everyone will be in the air relatively airtight building will increase the difference in concentration. It is found that indoor and outdoor particles are similar in size and distribution, but the share of submicron particles in the interior is greater. Indoor particulates can be introduced by outdoor air, smoking, stoves, fireplaces, occupants' activities, carpets, curtains and pets.
关于有吸烟者的居处,室内/室外可吸入的颗粒物浓度比规模为1.1～4.4。很明白,吸烟者是室内颗粒物的首要制造者,而别的室内颗粒物来历,例如烹谐和打扫卫生,对室内/室外颗粒物浓度比的影响大不相同。室内污染源甚至在无烟的家庭里也可能使PM2.5的浓度(颗粒物空气动力学直径<2.5μm)进步,由10μg/m3到每立方米数百微克。在本项研讨中平均室内颗粒物浓度是PM2.5=11.8μg/m3,且稍高于室外浓度;而室内有机碳均匀含量大大高于室外浓度,分别为7.8和3.0μg/m3,这意味着室内活动或许对室内有机碳的含量有严重影响。在同一项研讨中,研讨了室内和室外PM2.5相对毒性,发现室内吸收毒素均匀含量为3.3EU/mg,高于室外含量2.0EU/mg。
A smoker's abode, indoor / outdoor respirable particulate concentration than the scale of 1.1 ~ 4.4. It is clear that smokers are the primary producers of indoor particulates, while other indoor sources of particulate matter, such as cooking, coordination and cleaning, have very different effects on indoor / outdoor particle concentration ratios. Indoor sources of pollution, even in smoke-free homes, may also improve PM2.5 concentrations (particulate matter, aerodynamic diameter, <2.5, m), ranging from 10 g/m3 to hundreds of micrograms per cubic meter. In this study the average indoor particle concentration is PM2.5=11.8 g/m3, and slightly higher than the outdoor and indoor uniform concentration; organic carbon content is much higher than outdoor concentrations were 7.8 and 3 g/m3, which means that the content of indoor activities may have serious impact on indoor organic carbon. In the same study, the relative toxicity of indoor and outdoor PM2.5 was studied. It was found that the content of indoor absorbed toxin was 3.3EU/mg, which was higher than that of outdoor 2.0EU/mg.
由于室内活动和从外部环境的进入,通常颗粒巨细在0.01～20μm之间改变,空气清洁设备能削减该尺度规模内的颗粒物浓度;而亚微米级颗粒的铲除是非常关键的,由于更小的颗粒物能被吸入到呼吸道的深处并在肺泡区占据数年,或许可溶解颗粒会被吸收而进入血液。
As the indoor activities and from entering into the external environment, usually the particle size changes between 0.01 ~ 20 m, air cleaning equipment can reduce the scale of particle concentration; and the eradication of sub micron particles is very important, because the particles can be inhaled into smaller suction way and in the depths of the call the alveolar zones occupy a number of years, or permission of dissolved solids will be absorbed into the blood.
室内空气污染对公共卫生晦气影响的最新知道推动了对高功能空气净化商品继续不断的需求。现在用户请求商品在相同的空气流速下进步过滤功率、削减运用周期费用、体积更小和功能牢靠。
The latest knowledge of the adverse effects of indoor air pollution on public health has prompted continued demand for highly functioning air cleaning products. Now, the user requests the product to increase filtering power at the same air flow rate, reduce the use cycle cost, smaller size and reliable function.
商用和居处HVAC体系广泛地运用空气过滤器来维护居住者和设备免受空气的颗粒物侵蚀,需求有更高的过滤功率,特别是过滤亚微米级颗粒物。典型的MERV15～16过滤器在空气外表速度2.5m/s下操作时,初始压降大于150Pa,致使运用时期的高能耗本钱,约占设备总本钱的80%,不可能到达运用周期本钱(LCC)的请求。为了削减运用周期本钱,开发了压降明显下降的过滤器。
Commercial and home HVAC system widely used air filter to maintain the occupants and equipment from particulate air filtration erosion, demand higher power, especially the sub micron particle filter. Typical MERV15 ~ 16 filter operation in the air surface speed 2.5m/s, initial pressure drop is greater than 150Pa, resulting in the use of the period of high energy consumption costs, accounting for about 80% of the total cost of the equipment, may not reach the use cycle cost (LCC) request. To reduce cycle cost, a filter with a significant drop in pressure has been developed.
用于机械式空气净化器的褶型过滤器通常是由玻璃纤维或驻极改性的合成过滤介质制成,过滤功率可到达HEPA级。空气净化器的功能用CADR表述,能够经过运用低压降和坚持相同功率的过滤器而使CADR明显进步。
A pleated filter used in a mechanical air purifier, usually made of fiberglass or electret modified synthetic filter media, with filtration power of HEPA. The function of the air purifier is expressed in CADR, which can make CADR obvious progress after using low voltage drop and adhering to the same power filter.
上述情况与可重复运用的非袋式、借助于离心力从气流中除掉部分尘粒的旋转式真空除尘器类似。用过滤功率和除尘性质类似但压力较低的过滤介质代替ePTFE薄膜制成滤筒式过滤器的打褶滤筒时,真空除尘器的功能也能得以改进。
The above is similar to a rotary vacuum cleaner which can be reused in a non bag type and with the aid of centrifugal force to remove some of the dust particles from the air stream. The vacuum cleaner can be improved by using a filter medium with a similar filter power and a low pressure, instead of a ePTFE film, which is made into a pleated cartridge for a cartridge filter.
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