Due to the closed indoor environment of central air conditioning, the indoor air is not circulated, indoor air pollutants gradually accumulate, and the indoor air quality is reduced. Meanwhile, the use of building materials in indoor decoration causes a lot of harmful gases in the room.

长期生活在空气质量不高的室内环境中,容易引发人类多种疾病,并且发病率逐年上升。随着人们健康意识和环境意识的提高,室内空气污染问题已经引起了人们的高度重视。

In the indoor environment with low air quality for a long time, it is easy to cause a variety of human diseases, and the incidence of the disease is increasing year by year. With the improvement of people's health awareness and environmental awareness, the problem of indoor air pollution has aroused great attention.

现有研究表明,中央空调若对空气净化效果不佳,导致室内存在较多空气污染物,空气中的颗粒物容易引发呼吸道炎症、肺癌等疾病,其中的气态污染物对人体有致癌、致畸等危害,微生物容易引发人体多种过敏性疾病,而室内一些放射性元素对人体则容易诱发肺癌。

The current study shows that, if the central air conditioning air purifying effect, cause there are many indoor air pollutants, particulate matter in the air easily lead to airway inflammation, lung cancer and other diseases, which are gaseous pollutants such as carcinogenic and teratogenic hazards to humans, microorganisms easily lead to many human allergic diseases, while the interior of some radioactive elements to the human body may cause lung cancer.

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而复合净化技术是当前我国室内空气净化技术的主流方向。一般来说,室内空气净化的主要手段有:通风换气式、过滤式、光催化、静电以及负离子、吸附式、催化净化式等多种方式。

And the compound purification technology is the main direction of the indoor air purification technology in our country. Generally speaking, the main means of indoor air purification include ventilation, air filtration, filtration, photocatalysis, static electricity, negative ions, adsorption, catalytic purification, and so on.

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专业测试结果表明:中央空调采用预过滤器、中效过滤器、紫外灭菌和纳米光催化器进行空气净化技术可行,净化装置能够有效减少净化室内空气中的甲醛、细菌、病毒等空气污染物。

Professional test results show that central air conditioning adopts pre filter, medium efficiency filter, UV sterilization and nano photocatalyst to carry out air purification technology feasible. The purification device can effectively reduce indoor air formaldehyde, bacteria, viruses and other air pollutants.

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中央空调系统与空气污染

Central air conditioning system and air pollution

1.1 中央空调系统简介

A brief introduction of 1.1 central air conditioning system

中央空调系统主要包括主机和末端系统,中央空调系统的主要组成设备包括主机风柜、风机盘管等。中央空调系统有多种,可以根据不同的性质进行划分；

The central air conditioning system mainly includes the main engine and the terminal system. The main components of the central air conditioning system include the mainframe air cabinet, the fan coil and so on. There are many kinds of central air conditioning systems, which can be divided according to different properties.

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●按照负担室内热湿负荷所用的介质可以分为全空气系统、全水系统、制冷剂系统等;

The medium can be divided into the whole air system, the whole water system, the refrigerant system and so on, according to the heat and wet load of the burden indoor.

●按照中央空调空气处理设备的集中程度可以分为集中式和半集中式。

In accordance with the centralized degree of the air conditioning equipment in the central air conditioning system, it can be divided into centralized and semi centralized.

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1.2 中央空调系统空气污染

1.2 air pollution in central air conditioning system

一般情况下,现代建筑大多依靠中央空调来实现环境舒适需求。根据调査研究,若中央空调系统使用不当,不仅不能净化室内空气,反而会对室内空气造成污染,危及到人们的生活健康。

In general, most modern buildings rely on central air conditioning for environmental comfort. According to the survey, if the central air-conditioning system is not used properly, it will not only purify the indoor air, but also pollute the indoor air and endanger people's life and health.

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中央空调的空气来源一般是新风和回风,过滤方式主要是初效和中效过滤器,但是这两种过滤器不能够有效过滤空气中存在的大颗粒物和对人体具有危害的微小颗粒物以及有害气体。

The air source of central air conditioning is generally fresh air and return air. The filtration way is mainly primary effect and medium efficiency filter, but these two filters can not effectively filter large particles and harmful particles and harmful gases.

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微小颗粒物中包含有致病微生物,容易通过中央空调通风管道的气流进入中央空调系统,结成灰尘并且在中央空调通风系统管道中累积,同时中央空调的恒温环境使累积在通风管道中的微生物在良好的环境中大量繁殖,微生物就通过通风管道进入室内,污染室内空气。

Small particles contain pathogenic microorganisms, easily through the air pipe of the central air conditioner into the central air conditioning system, and a dust accumulated in the central air conditioning ventilation system in the pipeline, the constant temperature environment at the same time the central air-conditioning to accumulate in the ventilation duct in a large number of microorganisms in a good environment, microbes through the ventilation duct into the room, indoor air pollution.

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中央空调空气净化技术

Air purification technology for central air conditioning

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2.1 空气净化技术简介

Introduction of 2.1 air purification technology

空气净化技术是追求室内空气洁净环境的一项综合性技术,主要通过粗效、中效、高效三种过滤器过滤掉空气中的微粒,得到洁净空气,然后通过中央空调匀速的送风吹走有微粒的空气,使室内空气达到净化效果。

Air purification technology is the pursuit of indoor air clean environment and a comprehensive technology, mainly through the crude efficiency, in effect, a high efficiency filter to filter out particles in the air, clean air, and then through the central air-conditioning air blowing uniform particles of air, so that indoor air purifying effect.

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目前,室内空气净化技术主要包括除尘技术、气体净化技术、杀菌消毒技术。其中,除尘技术主要是采用活性炭过滤法,杀菌消毒技术主要是紫外线杀菌消毒技术。

At present, indoor air purification technology mainly includes dust removal technology, gas purification technology, sterilization and disinfection technology. Among them, the dust removal technology mainly uses the activated carbon filtration, and the sterilization and disinfection technology is mainly the ultraviolet sterilization and disinfection technology.

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纳米二氧化钛光催化技型托辊 吸水树脂 天津水处理设备 邯郸断桥铝门窗 唐山防水 检查井模具 沟盖板模具术,将纳米二氧化钛作为氧化剂,通过紫外光进行照射,激发空气中的氧和水分子,羟基自由基氧化来分解空气中的各种有机物、甲醛、细菌等。中央空调由于通风量较大,室内空气流速较大,纳米二氧化钛光催化产生的毒性随着循环风被带到室内,形成室内二次空气污染。

Nano titanium dioxide photocatalytic technology, using nano titanium dioxide as an oxidant, irradiated by ultraviolet light, activated oxygen and water molecules in the air, and hydroxyl radical oxidation to decompose various organic compounds, formaldehyde and bacteria in the air. Because of the large ventilation volume and the high indoor air velocity, the toxicity of nano TiO2 photocatalysis is brought into the indoor air with the circulation wind, resulting in the two indoor air pollution.

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