Purification
In a certain space, the particles in the air, harmful air, bacteria and other pollutants are eliminated, and the indoor temperature, cleanliness, pressure, airflow velocity and airflow distribution, noise vibration and illumination, and static electricity are controlled within a certain range of demand. Engineering discipline. The specially designed room of the purification project, no matter how the external air conditions change, outlines the airborne particles, harmful air, bacteria and other pollutants in the air, and the indoor temperature, cleanliness, pressure, air flow speed and Airflow distribution, noise and vibration, and engineering disciplines where static electricity is controlled within a certain range of requirements. The room specially designed by the purification project has the performance of maintaining the cleanliness, temperature and humidity and pressure required by the original setting, no matter how the external air conditions change. Suzhou Newstar Hardware Co.,Ltd. is a good manufacturer on the products of Hand Tools and Power Tools Combination. Power Hand Tool kit, Electrician Hand Tools Set, and other kinds of tools combination per customer needs. We choose high quality portable power and high quality hand tools, no worry about complaints from customer. Trust us and long time business with win-win. Power Hand Tools,Electrician Hand Tools,Portable Power Hand Tools,Electrical Power Hand Tools SUZHOU NEWSTAR HARDWARE CO.,LTD. , https://www.sjnewstarhardware.com
Related equipment Air purifiers (also known as indoor air purifiers) are widely used in air-conditioned rooms such as offices, hotels, residential buildings, hospital wards, and other laboratories, computer rooms, etc. that require air purification, to improve indoor air quality. Greatly beneficial.
The air purifier is a new type of household appliance, which has the functions of adjusting temperature, automatically detecting smoke, filtering out dust, eliminating odor and harmful gases, double sterilization, and releasing negative ions. The air purifier is usually composed of a high voltage generating circuit negative ion generator, a micro fan, an air filter and the like. Its working principle is as follows: the micro-fan (also known as the ventilator) in the machine circulates indoor air, and the polluted air passes through the air filter inside the machine (two times of filtration) to remove or adsorb various pollutants, and then pass through The negative ion generator installed in the air outlet (the high voltage in the negative ion generator generates DC negative high voltage during operation), continuously ionizes the air, generates a large amount of negative ions, and is sent by the micro fan to form a negative ion airflow, thereby achieving the purpose of cleaning and purifying the air, thereby Provide people with a "microclimate environment" similar to the fresh air in nature.
At present, the United States, Japan and other developed countries have tens of millions of air purifiers listed every year. The market is mainly based on Japanese products, with Toshiba, Matsushita, Sanyo, Heili, Krona and other brands. increase. There are many types of air purifiers available on the market. The commonly used ones are: wall-mounted, hanging, ceiling-mounted, floor-standing, bench-top, etc. Their functions and performances are: photoelectric sensor remote control, automatic smoke detection Three-speed wind speed, multi-directional airflow, intelligent timing and low noise, etc., the specification capacity is 3-30 meters 3 minutes, and the ordinary household capacity is 3 meters 3 minutes.
Now we will introduce them separately:
Wall-mounted air purifier: It can be hung on the wall. It is suitable for residential houses and small and medium-sized offices. The shape pays attention to the interior decoration. Most of the colors are cool and medium colors, simple and beautiful.
The main performance is: 1. It adopts photoelectric sensing and remote control technology, which is easy to operate;
2. Desktop wall dual purpose;
3. Three-speed speed regulation, low noise of suction dust collection operation;
4. The air outlets are separated from left to right, and the three air outlets are convenient for forming a good circulating airflow, such as better combined with an air conditioner. Hanging air purifier: Its shape design adopts a thin box structure, which can be used for hanging and wall hanging. It is suitable for ordinary shops, offices and other places.
The main performance is:
1. With a variety of functions, strong deodorization effect;
2. Three-speed speed control, low noise in suction dust collection operation;
3. It can be used for centralized control of multiple units.
Ceiling air purifier: Its outer casing is made of 2 mm thick decorative plate, which can fit the machine to the ceiling of the room roof. It is easy to install and has an ideal interior decoration.
The main performance is:
1. Can be single-machine remote control or multi-unit centralized control;
2. It has multiple functions and adopts a new powerful deodorization method with good effect;
3. Three-speed speed control, low noise in suction dust collection operation;
4. Can choose the right direction of the wind to achieve multi-directional?? 纬闪己玫?餮?贰?
Floor-standing air purifier: Most of them adopt front opening type structure, with double safety device, convenient for installation and maintenance, suitable for hospitals, wards, conference rooms and other places.
The main performance is:
1. With a variety of functions and a new strong deodorization method;
2. The third gear speed control, the suction dust collection operation noise is low.
In recent years, the relevant manufacturers have introduced a new product integrating air purification, air humidification and temperature regulation. Soon, there will be a kind of "microclimate regulator" with various air treatment functions. Indoor air purifiers are increasingly connected to people's lives, and air purifiers will bring more fresh air to people.
Air purification method
1. Adsorption filtration - activated carbon
Activated carbon is a porous carbonaceous material with a highly developed pore structure. The porous structure of activated carbon provides a large amount of surface area and is in full contact with gases (impurities), thereby imparting unique adsorption properties to activated carbon. It makes it very easy to achieve the purpose of absorbing and collecting impurities. Just like magnetic force, all molecules have mutual gravitational disadvantages: ordinary activated carbon can not adsorb so toxic gases, and the efficiency is low and easy to desorb.
2. Mechanical filtration - HEPA network
HEPA (High Efficiency particulate air filter), Chinese means high-efficiency air filter, HEPA-compliant filter. The efficiency of 0.3 micron is 99.998%. The HEPA net is characterized by air passing through, but fine particles cannot pass. . The HEPA filter consists of a stack of continuous, pre-folded, sub-glass fiber membranes that form a wavy gasket for placement and support of the filter boundary.
Electrostatic purification method
Working principle: The working principle of high-voltage electrostatic adsorption and dust removal is adopted. The electrostatic type is the working principle of high-voltage electrostatic adsorption and dust removal. The cathode line in the electrostatic field generates corona discharge under the action of high-voltage static electricity, and a large amount of negative ions are generated in the corona layer, and the negative ions continuously move toward the anode under the action of the electrostatic field. When the dust in the air passes through the electric field, the dust is charged by the collision of the negative ions, and the dust after the charge is also subjected to the action of the electrostatic field, moving toward the anode (dust collecting pole), and releasing the electric charge after reaching the anode.
Disadvantages: It can remove fly ash (can't remove poisonous gas), its performance is lower and slower than mechanical type, and it is easy to produce ozone. This model is rated as the worst purifier by the US market.
Chemical purification method
1 photocatalysis
Working principle: When the air passes through the photocatalytic air purification device, the photocatalyst does not change itself under the illumination of light, but can promote the degradation of harmful substances such as formaldehyde and benzene in the air of the chemical reaction under the action of photocatalysis. Non-toxic and harmless substances, and the bacteria in the air are also removed by ultraviolet light, and the air is purified.
Disadvantages: broad spectrum but need low air flow rate, slower purification speed and certain radiation to the human body. It is the purification method in Europe and America.
2. Formaldehyde scavenger
Working principle: chemical reaction with formaldehyde and formaldehyde to achieve formaldehyde removal
1. Chemical reaction: chemical reaction with formaldehyde to form carbon dioxide and water, such as ammonia;
2, biological: made of biological agents that can react with formaldehyde, such as urea, soy protein, amino acids, etc.;
3, plants: made of plant extracts, such as aloe vera, tea extracts, etc.;
4, closed class: made of film-forming substances, forming a film to prevent formaldehyde release, such as chitosan, liquid paraffin, etc.
Disadvantages: First, the substances generated after the chemical reaction are likely to cause secondary pollution. In practice, the phenomenon of secondary detection exceeding the standard is often found. Second, it is to absorb formaldehyde and reduce the formaldehyde content in the air without changing the chemical composition. However, in such a way, the symptoms are not cured, and formaldehyde is easily released again.
3. Pharmacy, Catalytic Method---Cold Catalyst Essence
Working principle: Cold catalyst, also known as natural catalyst, is a new type of air purification material after photocatalyst deodorizing air purification material. It can react catalytically under normal temperature conditions and make various harmful and odorous gases under normal temperature and pressure. Decomposed into harmless and odorless substances, from simple physical adsorption to chemical adsorption, decomposes while adsorbing, removes harmful gases such as formaldehyde, benzene, xylene, toluene, TVOV, and produces water and carbon dioxide. In the catalytic reaction process, cold catalyst It does not directly participate in the reaction itself. After the reaction, the cold catalyst does not change and does not lose, and it plays a long-term role. The cold catalyst itself is non-toxic, non-corrosive, non-combustible, and the reaction product is water and carbon dioxide, which does not cause secondary pollution, which greatly prolongs the service life of the adsorbent material.
Other purification methods
Washing method
Using the principle of siphoning and centrifugation, the purifying agent mixed with water is sucked into the straw of the lower part of the coaxial centrifugal turbine of the motor base through the siphon principle, and is rotated at high speed by the alternating-shield pole motor, and then the purifying agent mixed with water is used by the centrifugal principle. Sprayed on the bottle to form a water film, which will suck dust and bacteria from the air into the water, and simultaneously blow the purified air into the room to quickly and effectively remove toxins, dust, smoke, odor and virus in the room. Wait, and produce a lot of fresh oxygen.
2. Negative ion method
When the hydroxy anion is in contact with harmful gases floating in the air, it can reduce the active oxygen (oxygen radicals) generated by pollutants, nitrogen oxides, cigarettes, etc. from the atmosphere, and reduce the harmful effects of excessive active oxygen on the human body; The electric air drifts without charge and then settles, so that the air is purified.
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