1 first look at the actual technology, technology is the most direct look at the patent, there is no patent technology to see what system of technology, domestic or foreign, independent research and development or the introduction of . What is the patent of course is the core component of the ozone machine ozone generator utility model patents --- note that Oh, not design patents, yo Patent is divided into invention patents, utility model patents and design patents In fact, by definition the best is to see the invention patent, but it is a pity, yo, people in Germany SIEMENS as early as 1857 on the invention of ozone generator patents, yo, after 100 years of development, is now generally used to see what system technology, domestic or foreign, independent research and development or introduction of the patent. After more than 100 years of development, are now generally allowed to apply for utility model patents, this patent indicates that the product is currently a recent innovation, technological advantage, the patent protection period is 10 years.
Hey, there are a lot of corporate certificates a lot of dazzling, in fact, as long as these certificates and environmental protection equipment disinfection and purification equipment is not associated with the right, so be careful with the flowers fascinating eyes, not what the certificate is valuable, yo, take out the reasoning to fill the facade believe that we all know the heh!
By the way, because the patent law in the mid-20th century to really international unionization, the formation of the world rather than regional protection, so the former German SIEMENS ozone technology has largely become an open source resource - so the domestic enterprises to use their technology is very normal
2 look at the inspection report - the report can be divided into two oh, respectively, are Chinese Center for Disease Control and Prevention of environmental and health-related product safety and local inspection sites The two places to test out the validity of things are different, the authority is not the same Oh
3 look at the quality of the product, many companies now apply for a lot of certification, but take a closer look at it will find that it is the "China Quality Inspection Union" rather than the "State General Administration of Quality Supervision, Inspection and Quarantine", hehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehe, which is different from the group and the group of the "China Quality Supervision and Quarantine", which is not the same. There is no need to talk about the group and the country, there is a bit of a difference between Oh
The most fundamental determinant of product quality in the ozone generator, concentration purity and overall stability is good, high purity is not high, are ozone generator process materials decided that the best should belong to the platinum version of the generator, followed by the titanium version of the because of the relatively high cost of the cost of a large, coupled with the technical aspects of a very Difficulty Many companies or because they do not have the technology or because there is no R & D funds often do not have a platinum or titanium version of the generator are generally neon hollow tubing carbon stainless steel or ceramic and enameled (note that ceramics and enameled or the difference between the oh), and even imitation of titanium or mixed metals such as stainless steel and zinc titanium and steel combination of materials generator do not have Hey, neon hollow tubing carbon stainless steel, or ceramics and enameled, or the platinum version is the best should belong to the platinum version of the generator, followed by the titanium version, because the cost is relatively high, the cost is large, coupled with the technology has been very difficult. Or ceramic and enamel of such generator material limitations are relatively large, moisture can be recovered poorly, most of the foreign countries have eliminated the use of. In the application of ozone in the air, for example, is the lower the temperature, the greater the humidity of the air ozone sterilization effect is better, but if the generator is not good, the humid environment is often easy to make the future of its early strike, or external discharge, which is very dangerous. Purity is not high is like buying a chronic suicide home.
4 look at the concentration and purity, concentration according to the environment of mainland China and the Ministry of Health standards set the proportion of air applications 120mg - 300mg for the best, water treatment to 200mg - 300mg for the best In view of the comprehensive consideration of the daily household concentration is recommended not to be higher than 350mg . Oh, by the way, Taiwan's standards are not the same, air applications set at 120mg, water applications in the amount of 400mg, because the northern part of the island of Taiwan for the subtropical climate. The southern part of the tropical climate. The average annual temperature (except high mountains) is 22 ° C, annual precipitation is more than 2000 millimeters. So ozone in such a warm and humid place for air disinfection and sterilization applications as long as a small amount to achieve the purpose of disinfection, and due to Taiwan's densely populated and industrially developed water quality compared to the mainland to be several times worse, so even Taiwan's "Prince of the Groundnuts," Dr. Lin Guangchang said that the region's ozone treatment of the water should be 400mg, Oh, a lot of friends like to Taiwan's standards transplanted to the mainland, but they have forgotten! Dr. Lin Guangchang also said that soybeans to eat local, not imported, a side of the soil to raise people. Similarly, Taiwan's standards don't apply to the mainland. After all, the concentration of ozone is too high to be harmful to the human body.
Purity is a very important purchase parameters, generally speaking, the purity should be 100% of the best, most of the current domestic products are difficult to do, which is why most manufacturers only talk about the concentration of the reason not to talk about purity, purity and concentration of the same is dependent on the generator material technology and other factors, in general, enameled material generator purity of up to only 80%. And this kind of generator is currently the most used one of the household ozone products, other as written above neon and carbon bubbles and other slightly lower grade generator is the least in the 5% -10% purity, if the plant equipment is not good, the technology is not up to standard, the purity will be even lower. This is the ordinary consumer is the most difficult to detect and the most easily ignored point, because the ozone of the special flavor will cover up everything, the purity of the product is not high and high purity of the product together with a simple nose to smell is not distinguishable. Even a little purity is not, as long as the machine does not emit other strange smell, ordinary people's sense of smell is difficult to distinguish, which is also the reason for the formation of a price difference in many products, the cost of 20 dollars of the machine and the cost of 200 machines put together with the nose to smell is not comparable. Purity is not high harm is also very serious, the carcinogens produced by the colorless and tasteless, and air can also be dissolved into the water and water impurities interacting with, or through breathing into the human body or by drinking and eating into the human body without notice. So when you buy it is recommended to look before you buy, if you have the conditions to buy an ozone tester or test agent to use, in order to prepare for safety. In addition, this little thing is not expensive, buy back or very practical, especially with the detection of air quality of the kind, so it is a multi-purpose.
5 look at the Ministry of Health "consumer" quasi - Oh, although the ozone product market management is now very loose, not as mandatory as the legend of the powerful but from the consumer's point of view, the Ministry of Health "consumer" quasi machine is still very trustworthy, after all, is not any company to apply for the passage of the qualification of the assessment is still very strict. Its application in the latter part of the strict audit up as if the drugs apply for national medicine "quasi" word that!
6 look at the main business what, oh ozone industry in China and other industries is not the same place is required to specialize in, because the domestic ozone technology is not very advanced and foreign history of hundreds of years compared to the gap is still very obvious, can not be professionally invested in can be said to come out of the things can not stand the test. If a company is doing everything, both selling ozone machines and sell some unrelated things that is very doubtful unless it is a large group, have their own branches and R & D base of the whole body can be invested.
7 to see whether to join the industry self-regulatory associations, although it is difficult to say that the industry self-regulation, but in this industry or the need to participate in the activities related to the industry and accept the industry constraints, any industry has its own unspoken rules in it, more or less the need to accept the constraints of the industry, but an enterprise can not even accept the constraints of this point, it will really make consumers worried. Ozone industry is a sunrise industry with a bright future, the Ozone Industry Association has been applying for membership of enterprises to maintain a prudent attitude of strict requirements, the threshold is also relatively high, resulting in a lot of companies can only look at the door sigh.
This post is only for friends to buy reference, there are shortcomings please bear !!!!!!
I'm sorry, since the even of that [selection of oxygen machine ozone machine to grasp the seven principles - home oxygen machine purchase], fortunate enough to be Taobao selected as a shopping guide, there are constantly amateurs ask me a nearly the same problem, that is, in addition to the purchase of oxygen machine ozone machine to see the above seven should pay attention to what, what factors have a relatively large impact on human health, due to the question of the more people! As more people ask, a Want to answer is too much trouble, but also can not meet the requirements of more friends to buy the machine. This side of my personal small some suggestions to provide you with reference, there are insufficient places to please more comments, in order to modify the perfect.
You see the title you know, in addition to the seven principles and a health-related factors must be considered, that is, ozone generators in what circumstances are prone to produce nitrogen oxides, nitrogen oxides, what are the hazards? This is the main topic of this post to everyone.
So what exactly is the ozone generator generated nitrogen oxides (NOx)? The following is some of the information I have organized, I hope to be able to explain this issue
Nitrogen oxides are common air source ozone generator associated by-products, is generated by the air nitrogen and oxygen in the discharge atmosphere generated by the combination of NOx, NOx as an associated by-products usually refers to nitrogen monoxide NO and nitrogen dioxide NO2, and NO is generally reacted with the ozone to generate nitrogen dioxide, so in the Air source ozone generator NOx is mainly divided into NO2.
NOx toxic effect: NO2 is insoluble in water, easy to enter the lower respiratory tract up to the deep lungs, when NO2 reaches the alveoli, slowly dissolved in body fluids, the formation of nitrite and nitrate and its salts to the formation of nitrite and nitrate ions through the lungs into the bloodstream in the whole body distribution, causing damage to the kidneys, liver, heart and other organs. At the same time, NO2 itself produces strong stimulation and corrosive effect on lung tissue, causing pulmonary edema.
Immunity damage: long-term exposure to NO2 can not only reduce the alveolar phagocytosis and can inhibit the formation of antibodies in the serum, affecting the immune function.
Cancer-promoting effect: Animal experiments have shown that NO2 has cancer-promoting and cancer-causing effects.
Large amounts of nitrogen oxides in the oxygenator ozone machine for water purification or treatment of daily vegetables and fruits, chicken, ducks, fish and meat dissolved in the water to form nitrites, resulting in nitrites exceeding the standard, and pesticide residues in vegetables and fruits Meat hormones antibiotics and other interactions at the same time and produce other harmful substances.
Now, the domestic market of ozone equipment, a variety of endless, but product quality varies, many friends mistakenly think that just buy an ozone machine ozone machine as long as the ozone can be out, as long as the smell of the ozone that the smell of the grass is all OK and ignored the nitrogen oxides of the human health hazards of this hidden killer, in fact, how much of this idea into the purchase of the wrong area. Because most of the domestic ozone generator are used to air as raw material for high-frequency high-voltage discharge to produce ozone, and this way of ozone generator derived from nitrogen oxides exceeds the standard is a very serious problem. Since the air contains about 78% nitrogen, if exposed to high voltage discharge environment, the nitrogen molecules will be dissociated into atoms, so that the formation of toxic nitrogen oxides will be prioritized. Unfortunately, because of the natural properties of ozone, such as doing experiments to deal with blue ink, to save the life of poisoned goldfish experiments, etc., even if the ozone purity is very low can also play a role in the same effect, simply put from the surface to see the ozone machine with a 40-50 yuan oxygenator ozone machine and a machine valued at 400-500 yuan to do these experiments with the effect of the basic similar, but in essence the loss of the health factors Inside. Oh my company has pure oxygen to do these experiments have played a comparable effect with the ozone, blue ink color faded a little longer can make the water clarified, poisoned goldfish in the state of oxygen also came to life that these experiments do not have the uniqueness, just reflect the strong oxidation of ozone and super detoxification (to decompose the chemical residues based on the ability to), in fact, with the discernment of living oxygen machine qualified or not. The fact that it is not a good idea to use it as a tool to identify the presence or absence of an oxidizer.
So when you buy must pay attention to ask about the purity of ozone, generally speaking, the purity of ozone does not mean that the production of nitrogen oxides too much, a friend asked me since the role of ozone and nitrogen oxides will produce nitrogen oxides, even if the ozone out of the purity of 100% is useless ah the same nitrogen oxides can be produced, in fact, friends have overlooked the problem that the ozone will not be at room temperature and pressure with nitrogen (relative to the normal pressure), the ozone will not be able to produce the same nitrogen oxides, in fact, friends have overlooked the problem of ozone. Normal pressure and nitrogen (relatively the most stable inert gas) reaction, only the temperature above 330 ℃ when it is possible to react with nitrogen to generate nitrogen oxides. This sentence should be said this way: in the ozone generator electrode, if the corona method and air as a gas source, the generator temperature is too high, that is, the corona power is larger, the power density per unit area is too large, no effective cooling measures, the generator internal temperature reaches more than 300 ° C, the oxygen molecules in the dissociation, the collision process and the generator air duct in the air in the reaction of nitrogen to generate nitrogen oxides. We look back at the high-frequency high-voltage discharge generator is how, generally in accordance with the continental voltage it is directly from 200 volts in the instantaneous conversion to 11,000 volts - 21,000 volts of high-pressure discharge in the process of the internal temperature of the generator will inevitably rise, but we are due to most of the oxygen machine ozone machines have protection devices, as well as post-cooling devices can be assured that use. General purchase of our most direct is to look at the generator material, material good purity will be high, specific description of the previous post here will not repeat. If the European and American countries in accordance with the standards for the selection of generators, the benchmark material should be titanium steel discharge substrate (steel plate containing titanium metal components) ozone generator discharge tube, of course, if it is a pure titanium smart titanium is better, this type of material generator service life of ultra-long, high strength, high temperature, corrosion resistance, small power consumption concentration control and stability, the purity of the basic can be achieved more than 90%, but the cost of the relatively high. High so the price of this type of ozone machine ozone machine is relatively high, but from a long-term economic and health point of view is still very cost-effective.
Of course, there is a gas source selection problem, generators in addition to the air source and pure oxygen source, pure oxygen source generator high cost of the current application is not much, generally to air source-based, household small generators are mostly air source, so it is also necessary to look at the manufacturer's is not a professional technology (a look at the material to look at the technology), in general the air source is the cause of the generator produces Nitrogen oxides quality is one of the factors that cause the generator, then you need to extract from the air stripped of oxygen to improve the purity of the air purification technology requirements are relatively high, many manufacturers say that the dry air can solve this problem is not, because there is also a generator internal temperature control problems, the most secure is to extract stripped of purification technology to purify ozone, ozone exports to improve the concentration of the cluster. Of course, the average consumer may not understand the principle and application of ozone technology due to knowledge limitations, then the same old, you can directly look at the generator materials and ozone-related certificates (Oh, can also be combined with my last post to see Oh)
Nitrogen oxides are mainly:
Nitrous oxide (also known as: nitrous oxide, nitrous oxide, laughing gas, and even the second nitric anhydride). Nitrous oxide; CAS: 10024-97-2
Nitric oxide; Nitric oxide; CAS: 10102-43-9
Nitrogen dioxide (also known as: nitrogen peroxide); Nitrogen dioxide; CAS: 10102-44-0
Nitric oxide (also known as: nitrite). Nitrogen trioxide
Nitrogen tetraoxide
Nitrogen pentoxide
Nitrogen pentoxide
Physical and Chemical Properties
Except for nitrogen pentoxide, which is solid, the rest are gases. The molecular formula NOx, of which nitrogen tetroxide is a dimer of nitrogen dioxide, often mixed with nitrogen dioxide to form an equilibrium mixture. Nitric oxide and nitrogen dioxide mixture, also known as nitrous oxide (nitrous oxide). Relative density: nitric oxide is close to air, nitrous oxide, nitrogen dioxide is slightly heavier than air. Melting point: Nitrous oxide is 30℃, the rest are below zero. Slightly soluble in water, aqueous solution is acidic to varying degrees. Nitric oxide, nitrogen dioxide decomposition in water to generate nitric acid and nitrogen oxide. Nitrous oxide has strong oxidizing effect above 300℃, the rest have different degree of oxidizing, especially nitrogen dioxide, decompose above -10℃ to release oxygen and nitrogen. Nitrogen oxides are non-combustible substances, but they can be flammable, such as nitrous oxide (N2O), nitrogen dioxide and nitrogen dioxide and nitrogen dioxide can cause an explosion when encountered with high temperature or combustible substances.
Invasive way
Mainly through the respiratory tract inhalation.
Toxicology
Nitrous oxide in nitrous oxide (laughing gas) as an inhalation anesthetic, not to industrial toxicity; the rest of the nitrogen dioxide, in addition to nitrogen dioxide, meet the light, humidity or heat can produce nitrogen dioxide, nitrogen dioxide toxicity, mainly damage to the deep respiratory tract. Nitric oxide can also be combined with hemoglobin to cause methemoglobinemia. The MLC of nitrogen dioxide inhalation for 1 minute is 200ppm.
Clinical manifestations
Acute poisoning: Inhalation of the gas can be no obvious symptoms at the time or eye and upper respiratory tract irritation, such as pharyngeal discomfort, dry cough, etc. The incubation period is usually 6-7 hours. Often after 6-7 hours incubation period, late pulmonary edema, adult respiratory distress syndrome. Pneumothorax and mediastinal emphysema may occur. Cough, progressive chest tightness, respiratory distress, and cyanosis occur about 2 weeks after the resolution of pulmonary edema, with the development of delayed-onset bronchiolitis. In a small number of patients, the above lesions occurred 2 weeks after inhalation of gases with no obvious signs of toxicity. Blood gas analysis shows a decrease in arterial partial pressure of oxygen. Chest X-ray shows pulmonary edema, or both lungs are covered with granular shadows. High concentrations of nitric oxide in nitrous oxide can lead to methemoglobinemia.