Shenzhen Airport Public Security Bureau Comprehensive Office
Author: Li Deng environmental protection
One. Engineering background
After preliminary investigation at the scene, the air pollution in the office was serious, and the pollution source was mainly aircraft exhaust. The aircraft exhaust mainly emits carbon dioxide (CO2), sulfur oxides (SOX), nitrogen oxides (NOX), unburned or partially burned hydrocarbons (UHC can also be called volatile organic compounds VOC), and carbon oxides (CO). , tiny particles and other trace compounds, water (H2O). Ozone in the exhaust gas, NOX, VOCs, etc. will produce ozone, leading to respiratory diseases and lung diseases; PM2.5 contains a great impact on the human respiratory system and cardiovascular. Such as nitrogen oxides NOx, PM2.5, VOCs, formaldehyde, carbon monoxide, etc., automotive exhaust gas contains hundreds of different compounds, including pollutants such as solid aerosols, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides Compounds, lead and oxysulfides. A car emits three times more harmful emissions per year than its own weight. Solid suspended particles: The composition of solid suspended particles is complex and has strong adsorption capacity. It can adsorb various metal dusts, strong carcinogens such as benzopyrene and pathogenic microorganisms. Solid suspended particles enter the lungs of the human body with breathing, and are trapped in different parts of the respiratory tract by collision, diffusion, deposition, etc., causing respiratory diseases. When the suspended particles accumulate to a critical concentration, they will stimulate the formation of malignant tumors. In addition, suspended particulates can also directly contact the skin and eyes, block the hair follicles and sweat glands of the skin, cause dermatitis and conjunctivitis, and even cause corneal damage.
Carbon monoxide: Carbon monoxide binds hemoglobin in the blood 250 times faster than oxygen. Carbon monoxide enters the blood circulation through the respiratory tract and forms a carboxyhemoglobin after affinity with hemoglobin, thereby weakening the function of blood to transport oxygen to tissues, damaging the central nervous system, causing human sensation, reaction, understanding, memory and other dysfunctions. The blood circulation system causes life-threatening. Therefore, even a slight inhalation of carbon monoxide may cause terrible hypoxic damage. Nitrogen oxides: Nitrogen oxides mainly refer to nitrogen monoxide and nitrogen dioxide, which are harmful gases to the human body, especially to the respiratory system. Exposure to air for 10 minutes in air with a nitrogen dioxide concentration of 9.4 mg/m3 can cause human respiratory dysfunction. Hydrocarbons: It is still unclear about its direct health hazards. However, when nitrogen oxides and hydrocarbons act under the action of the sun's ultraviolet rays, they produce an irritating light blue smoke containing various complex compounds such as ozone, aldehydes, and nitrates. The most prominent hazard of this photochemical smog is to stimulate the mucous membranes of the eyes and upper respiratory tract, causing redness and laryngitis of the eyes. In December 1952, photochemical smog occurred in London. The number of deaths in 4 days was 4,000 more than in the same period of the previous year. The deaths at the age of 45 were the highest, about three times the usual; the number of people under one year was about twice that of usual. Lead: Lead is a toxic heavy metal element. Most automotive oils are blended with an anti-explosive agent such as tetraethyl lead or methyl lead. The lead and its compounds produced after combustion are toxic substances. More than 60% of the lead in the urban atmosphere comes from the burning of leaded gasoline in automobiles. Excessive levels of lead in the human body can cause cardiovascular diseases and affect the function and nervous system of important organs such as liver and kidney. Because the lead dust ratio is large, it usually accumulates in the air at a height of about 1 meter, so it poses the greatest threat to children.
Indirect hazard; Exhaust gas will have a profound impact on the environment of human life while directly endangering human health. The sulfur dioxide in the exhaust gas has a strong pungent odor. When it reaches a certain concentration, it will easily lead to the occurrence of "acid rain", causing acidification of soil and water sources, affecting the growth of crops and forests. In the past 100 years, climate warming has become a major disaster for mankind. The melting of glaciers, the rise of water levels, the El Niño phenomenon, and the La Niña phenomenon all pose serious challenges to human survival. And carbon dioxide is the chief culprit of global warming. It can cause respiratory diseases and lung diseases; it has a great influence on the human respiratory system and heart, brain and blood vessels. Inhalation of unpleasant odor, substances irritating the eyes and respiratory tract, when exposed to high concentrations, when the concentration reaches 1000ppm, it has an effect on the central nervous system, and the eyes, nose and throat will be irritating. A large number of total volatile organic compounds (TVOCs) are continuously produced, etc., and in this environment for a long time, it will bring great harm to the health of the individual and the natural environment, and the body and mind are tired and at the same time reduce the work efficiency. In addition, the interior decoration of the office produces formaldehyde, total volatile organic compounds (VOCs), etc., which will cause great harm to human health and the natural environment in the long-term environment, and at the same time reduce work efficiency.
two. engineering design
Design Principles:
1. Choose a technical route that ensures governance effectiveness;
2. Select equipment that saves investment, is reasonable, adapts to local conditions, is simple to operate, operates reliably, and works well;
3. Safe and reliable, easy to operate; no need for regular cleaning, fire prevention, high efficiency purification;
4. After the harmful polluting gas is treated by the purification system, the pollutants meet the national standard;
5. Thoroughly purify the air and odor.
Engineering orientation:
1. Use the original air duct system and air inlet at the top of the ceiling (the upper pedestrian passage in the office area).
(1) Add air purification and filtration equipment (including initial, medium and high-efficiency filtration equipment) to effectively remove PM2.5.
(2) Low-noise air supply system, which can adjust the air volume (the air conditioner is installed in the middle section of the fresh air duct to ensure sufficient air volume at the end pipe).
(3) Plasma air purification system to ensure effective removal of VOCs (the plasma air purification system is installed in the middle section of the fresh air duct to achieve clean fresh air delivery to each working place).
(4) Install an independent adjustable air volume fresh air outlet and a hurricane outlet in each office (how much according to the actual environment). The fresh air system is formed to achieve better results.
2. In the central air-conditioning system of the original office building, the fresh air system equipment is separately and independently controlled, mainly when the central air-conditioning equipment is not working, or the air conditioner is not opened at all in winter, and the air circulation of fresh, clean and comfortable indoors can be effectively ensured, thereby achieving energy saving. Environmentally friendly (time switch can be set automatically).
3. According to the actual site conditions, install an exhaust system in the middle of the office building, office, conference room, restroom, etc., connect to the ceiling of the office public space, and discharge it through the exhaust of the pipeline equipment.
4. At the same time, the exhaust air is designed. Therefore, the indoor purification is carried out, and the content of particulate matter and other harmful gases are reduced to an extremely low level, which makes the indoor air clean.
three. What is air ion?
Ions are the charges contained in molecules or atoms. These ions exist in nature. Simply speaking, small ions have a survival time of 30 to 300 seconds, but they are very active; and small ion densities range from 900 to 1100. Negative ions and 1000~1200 positive ions, per cubic centimeter (ion/cm3) in a "fresh air" environment, like the top of a mountain, at sea level we usually experience 500 negative ions and 600 positive ions per cubic centimeter [ Ion/cm3], while in urban buildings, the ion level drops by 80% to 95%. In the small office, almost no ions are measured, and when the ions are reduced, the bacteria grow. In nature, the amount of oxygen ions is increased in the fresh air, the oxygen molecules become active again, and the air quality is raised to the level of "fresh air". In other words, the use of plasma air technology releases and actively collides and attacks, inhibits and decomposes. The molecules of bacteria and moldy cells in the air, and destroying their particles and floating mold, will form a cluster of ionic clusters, so that you can always breathe in the unpolluted ecological environment. The fresh, clean air that is close to nature is comfortable, which is the basis of plasma air technology.
four. Technical traceability:
Air purification itself exists in nature, the perfection of nature's process and unlimited creativity, establishing the scale, process and results of any thing, thus instructing us to understand the mysteries. The Edda air air ionization process mimics nature and develops different products according to different indoor environments. According to the ion concentration in nature, the ions in the indoor air are always supplemented. The ion concentration in nature is 800/cubic. Cm, of which 400 are positive and negative ions. Using ionization technology, we can artificially implement this natural phenomenon, and maintain the life of ions for about 2.5 hours and control the concentration of ions as needed. The ionization process of self-purification of natural air is realized efficiently and harmlessly, so that positive and negative oxygen ions which are the same or similar to the natural world can be generated, and the purpose of indoor air purification is achieved, and the air quality level of indoor air and urban park is allowed. Each user "does not leave the house, such as the bath forest."
Edda Air's environmental technology, Applied Physics, Chemistry, Biology and Environmental Engineering, created plasma air purification technology and successfully implemented Einstein's ionization theory. By simulating the natural air environment, the indoor air quality is significantly improved, and various harmful pollutants are effectively and quickly removed and decomposed. This is our belief that "the forest-like air can be enjoyed at home." Our technology solves many traditional problems such as activated carbon, photoion generators, ozone generators, high voltage static electricity, and photocatalysts. Our plasma air purification technology can effectively reduce dust in the air, neutralize and decompose pollutants in the air, disinfect bacteria, effectively control volatile organic compounds, and clean the air effectively!
Plasma air action:
Edda Air plasma air is further derived from the ionization theory of Albert Einstein. It is a new technology integrating physics, chemistry, biology and environmental science. It is easy to install in air conditioning equipment, air handling units, Fresh air or air conditioning duct system installation. The release of the ionization tube controls a large number of positive and negative ion groups, actively attacking pollutants and helping us to improve the quality of the air.
It has been remembered in the fresh air of waterfalls, mountains, seaside and after heavy rains. The natural biological climate produced by plasma air technology is rich in reactive oxygen molecules, called ions; the plasma air system creates a positive and can be measured and controlled. The amount of negative oxygen ions, the negative ions contain an additional electron, and the positive ions are electrons that lack the unstable conditions caused by an electron.
These unstable ions provide the following benefits:
Fives. Product Features:
Edda air plasma air can effectively improve work efficiency (English and German use data shows that the work efficiency can be increased by up to 70%), effectively prevent and control infectious diseases mediated by air and surface, and reduce the incidence of respiratory diseases ( Rhinitis, asthma, etc. and skin allergies and other symptoms to achieve cosmetic effects; reduce air conditioning pipeline cleaning frequency and maintenance costs, reduce air static content, enhance filtration efficiency and air conditioning operating efficiency, maximize the use of return air (up to 30% -70%), reduce fresh air to 30%-70%, reduce the number of cycles to 20%, which will save 35%-75% energy consumption for air conditioning operation; high cost performance, long-term benefit for one-time investment, no wearing parts or Consumables make it easy and simple to use.
six. Technical comparison
Edda air Plasma ions provide important technical support for traditional filtration or air purification solutions, including traditional solutions such as filters, UV, activated carbon, chemical, biological, and catalytic oxidation for greater efficiency. It also reduces energy consumption and reduces installation costs. Traditional air filtration only provides a partial solution that only removes larger particles. Smaller, more dangerous particles and pathogens still exist, ignoring important aspects of indoor air pollution sources (ie, not removing odors or volatiles). Substances (VOCs)). Formaldehyde, reducing particulates, bacteria, smog, mold, decomposition of odors and volatile gases. Only a few watts of energy consumption, with central air conditioning can save 35-70%. Easy to install into existing HVAC or ducting systems, avoiding expensive modifications and long-term use. Plasma air product design and testing have passed safety standards, EU CE, CMA, CNAS certification.
Seven. Authority certification
Seven. Authority certification
Eight. Our service
According to the actual situation, free evaluation, testing, trial, and provide professional design solutions for indoor and outdoor environment and governance.
At present, the airport office building is complicated due to the large amount of project reconstruction. In order to ensure the actual effect and air quality of the project, it is recommended to first select a room 20/30m2 and install it for free to ensure the purification effect and feasibility. After the completion of the transformation, the user will test it to determine the effect, and then discuss and carry out a comprehensive transformation. The company invested in a new wind and a set of odor removal air purification system equipment (250m3 / h), the same as the above-mentioned project guidance. Including PM2.5 filter equipment, fresh air equipment, plasma air purification system (the equipment can be placed on the corner of the window or ceiling), pipes and other components (without destroying the external wall structure of the building, the outside indoor glass window is ventilated and Exhaust air), the air outlet can be adjusted, and the actual sample of the air outlet is opened and fixed on the ceiling.
nine. Some cases:
Schematic example in the office
Project real shot demo:
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