In the aircraft body and air, water, dust and other particles when friction will make the aircraft charged, if not take measures, will seriously interfere with the normal work of the aircraft radio equipment, so that the aircraft become deaf and blind; in the printing press, the electrostatic charge between the pages of the paper will make the pages of the paper bonded together, it is difficult to separate, to the printing of the trouble; in the pharmaceutical factory. Due to static electricity to attract dust, will make the drugs do not reach the standard purity; in the put on the TV screen surface of the static electricity is easy to adsorption of dust and oil, the formation of a layer of dusty film, so that the clarity of the image and the brightness of the reduction; on the blended clothes on the common and not easy to shoot off the dust, but also static electricity to play the ghost.
The second major hazard of static electricity is the possibility of explosion due to electrostatic spark ignition of some flammable objects. Dark night, people take off nylon, woolen clothes, will send sparks and "bla bla" sound, which is basically harmless to the human body. But on the operating table, electric sparks will cause anesthetic explosion, injury to doctors and patients; in coal mines, it will cause gas explosions, which will lead to death and injury to workers, mine scrapping. In short, electrostatic hazards caused by the use of electricity and electrostatic sparks, electrostatic hazards in the most serious electrostatic discharge caused by combustible fire and explosion.
People often say, prevention is better than cure, to prevent the generation of static electricity measures are generally to reduce the flow rate and flow, transformation of the process of electric strong links, the use of electric less equipment and materials. The simplest and most reliable way is to use the wire to ground the equipment, so that the charge can lead to the ground, to avoid the accumulation of static electricity. Careful passengers will probably find; in the aircraft on both sides of the wingtip and the tail of the aircraft are equipped with a discharge brush, aircraft landing, in order to prevent passengers from flying down the electric shock, the aircraft landing gear on the majority of the use of special grounding tires or grounding lines; to discharge the aircraft in the air generated by the static charge. We also often see the tail end of the tanker truck drag a chain, which is the car's grounding wire. Properly increasing the humidity of the work environment so that the charge is ready to be discharged can also be effective in eliminating static electricity. It is not easy to do a good static test in humid weather, is this reason.
Anti-static agents studied by researchers, on the other hand, are very good at eliminating static electricity inside insulators. However, there are two sides to everything. For static electricity this hidden troublemaker. As long as you feel through its temperament, to avoid the shortcomings of the strengths, but also to make it for the service of mankind. For example, electrostatic printing, electrostatic spraying, electrostatic flocking, electrostatic dust removal and Hong Kong electricity sorting technology has been widely used in industrial production and life. Static electricity has also begun to desalinate seawater, spraying pesticides, artificial rainfall, low-temperature refrigeration and many other aspects of the hands, and even in the word Zeus airships are also installed on the electrostatic charger and other electrostatic devices.
The accumulation of static electricity is inevitable. Static electricity will burn people's skin when serious, a variety of electrical appliances electromagnetic waves and harmful rays in excess of the endocrine system will interfere with people. With the improvement of people's living standards, as well as environmental protection awareness of the enhancement of the application of anti-static metal cloth is also increasingly expanding the scope of anti-static metal cloth clothing such as vocational clothing, uniforms, protective clothing popularity, anti-static metal cloth has also emerged as a star product in the fabric market. The latest market dynamics show that many developed countries have been used in the field of home textile products, such as bed cover, paved, cushion are used on the anti-static metal fabric. Demand is very large, orders continue.
But the manufacturer has to have three conditions. First, the product should meet the requirements of the importer's indicators. Second, the post-processing to pass. Third, to be woven on wide looms. Japan, Europe's orders are mostly. The domestic northern market also has some sales. There is no doubt that the market prospect of anti-static metal cloth is very broad.
Hazards in industry
The generation of static electricity is inevitable in industrial production, and the hazards caused by it can be mainly attributed to the following two mechanisms:
One of them is: the hazards caused by electrostatic discharge (ESD):
(1) Causing malfunctions or malfunctions in electronic equipment, causing electromagnetic interference.
(2) Breakdown of integrated circuits and precision electronic components, or promote the aging of components, reducing the production yield.
(3) High-voltage electrostatic discharge causes electric shock, endangering personal safety.
(4) In more flammable and explosive products or dust, oil mist in the production site is very easy to cause explosions and fires.
The second, electrostatic attraction (ESA) caused by the hazards:
(1) electronics industry: adsorption of dust, resulting in integrated circuits and semiconductor components of the pollution, greatly reducing the yield.
(2) film and plastic industry: so that the film or film rewinding uneven; film, CD plastic disk stained with dust, affecting the quality.
(3) paper printing industry: paper winding is not aligned, overprinting is not allowed, the absorption of dirt is serious, and even paper adhesion, affecting production.
(4) textile industry: cause root silk fluttering, tangled flowers broken head, yarn tangled and other hazards.
The hazards of static electricity are **** witnessed, and now more and more manufacturers have begun to implement various degrees of anti-static measures and projects. However, it is important to recognize that the perfect and effective anti-static project in accordance with the actual situation of different enterprises and different operating objects, the development of appropriate countermeasures. Anti-static measures should be systematic and comprehensive, otherwise, it may be twice the effort, and even cause destructive counterproductive.
Harm to pregnant women
Persistent static electricity can cause an increase in the pH value of human blood, increased calcium excretion in the urine, decreased blood calcium, the most harmful to maternal health, static electricity can cause a decline in the level of progesterone in the body of the pregnant women, so that they are prone to fatigue, irritability, and headache, etc., it is necessary to take appropriate precautions.
Pregnant women to prevent static measures
Pregnant women to prevent static electricity "harassment", you can plant more suitable flowers and plants indoors, or choose to use the appropriate humidifier, so that the living environment to maintain the appropriate humidity. Woolen or synthetic textured clothes are prone to static electricity, and it is best to prepare more cotton clothing for pregnant women.
Avoid prolonged contact with the computer, open the window when watching TV or computer, after watching should wash your hands, wash your face, use good moisturizing properties of skin care products to ensure that the skin's moisture, at the same time a long time in the static field environment of the pregnant women living in the body of static electricity due to the build-up of its blood PH value alkaline, so it is necessary to appropriately increase the intake of food containing vitamins C, A, E and acidic foods, such as carrots, Cabbage, tomatoes can improve the acidity of the blood, to maintain the body's normal electrolyte balance.
Static electricity on the baby's harm
First of all, it will make the blood alkaline concentration increased, and calcium decreased, which is in the growth period of infants and young children is really a taboo. Also, the static electricity adsorption of a large number of dust contains a variety of viruses, bacteria and harmful substances, they will make the baby's skin spots inflammation, resistance to weak babies may even trigger bronchitis, asthma and cardiac arrhythmia and so on!
Harm to the human body
The skin
Long-term in the open TV, computer and microwave ovens and other environments, it is often possible to have enlarged pores, skin dryness, erythema, itchy skin and other symptoms. The daily operation of the computer office white-collar face erythema, hyperpigmentation and other facial diseases of the probability of the incidence of far higher than those who do not use the computer, this is due to the computer screen generated by the electrostatic attraction of a large number of suspended dust, so that the face is stimulated by the cause. This is especially true for people with sensitive skin.
To the heart
In clinical practice, when some people are critically ill, may use a kind of electric shock to save the patient's life, because electric shock to the heart can defibrillate. It can be seen that a certain amount of electric current can play a role in saving lives, but normal people do not need electric current. If the static electricity carried by the human body in thousands of volts or even 10,000 volts, it will seriously interfere with or even change the potential difference inherent in the human body, especially affecting the normal work of the heart, may cause heart rate abnormalities and premature heartbeat. Winter 1/3 of the cardiovascular disease and static electricity, can not find the cause of heart disease, neurasthenia, nine out of ten people because of long-term interference by static electricity to.
The brain
Medical experts explain: dry static electricity on the brain does have an impact, it will cause the nerve cell membrane current conduction abnormality, affecting the central nervous system, so that people feel fatigue, irritability, insomnia, headache.
On the skin disease
Human body charged with electricity is a common thing, from the point of view of modern science, human body charged with electricity is not a bad thing. In the past, people were afraid of electricity, "electricity" in people's minds is so terrible fear. Especially when they saw the thunder and lightning, they were scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared, scared. This is no wonder, for people who have not come into contact with the word "electricity", especially so terrible. However, this fear of human psychology is a certain scientific reason, a powerful electric charge once the circulation of the human body, the light was burned, the heavier is dead. Its powerful positive and negative charge discharge and instantaneous arc flash as well as a strong lightning shock wave, really deafening. This powerful charge discharge, to the natural world and mankind has brought how many major disasters, buildings were destroyed, tall trees were split in half. And in the summer of each year, how many people and animals were struck by lightning and died, the world's regions each year due to charged cumulonimbus charge discharge, caused by the direct economic losses of up to hundreds of millions of dollars.
Let's talk about the usual "electric" phenomenon, in our daily lives, we use a comb in the hair, often found in the high-voltage electrostatic field force under the action of the formation of ray-like hair. We undress every night, but also often find a flash effect and splitting the flash of sound. Sometimes, when we touch the fur of a "cat or dog", you get a tiny "electric shock". Also, if you run a comb through your hair, you can attract confetti, which is often referred to as the "electric" phenomenon. There are many kinds of objects in motion, can be generated on both sides of the endpoints with positive and negative charges of the electric field effect, when the amount of charge gathered to reach tens of thousands of volts of high pressure, it will be surrounded by other objects to produce a charge discharge, which is the object of the friction of the state of electricity.
"Lightning" is a high charge of positive and negative electric field between the insulator is broken by the discharge mechanism, when the powerful positive and negative charge particles collide with each other instantly produce annihilation, in the positive and negative charges collide with each other in the moment will be formed in the light of radiation and high temperature gas expansion effect, this instantaneous rapid expansion of the gas will be with the air to produce *** Ming and the formation of a huge sound, which is the process of formation of natural thunder and lightning cause.
On the impact of static electricity on human skin diseases there must be any mystery, here we *** with the analysis of its inner function. The human body is composed of large chemical molecular formations of cellular assemblies, cells are composed of space material particles, the movement of material particles to form a large world of electric field force energy, with a different charge of particles created by the movement of space material mechanism. The electric phenomenon of the human body is the masterpiece of nature, everywhere presenting the conversion effect of electric and magnetic fields. The human body, in its sick state, presents changes in the potential of cell membranes, and the healthy human body, in its healthy state, presents a balance of potentials in the cells of the human body. The stimulating effect of the applied electric field elevates the balance of the intermolecular point potentials of the cells in the sick state, thus putting the human body in a position to function in a healthy state.
Humans usually wear clothes, divided into different fiber products dress, and nature plant cells and animal fur fiber tissue and chemical fibers are different between the amount of charged. In addition, chemical fibers and animal hair electrostatic charge value is the largest, generally speaking, we human beings wear clothes of a wide variety of material fibers, mainly to the animal's fur and chemical fibers. This is also the main cause of the human body charged, different fiber organization of the material composition of the charge it carries is also different, about the clothes carry the cause of the charge is mainly produced by the friction movement between the material material. When the human body clothing carries a high potential, it will form the human skin and clothing between the thousands of volts of electrostatic potential difference or higher, in this electric field force, the human body's skin cell surface layer is always in the high voltage field force under the influence of. However, in this high potential field mechanics, can lead to the recovery of the normal function of the sick cells, this is only a scientific reasoning, is also based on the human body's charged phenomenon has been found early. With the chemical fiber and woolen products clothing dress more and more common, and the human body carries the electrostatic potential will rise with it.
Through the investigation, the human body surface layer of the electrostatic charge carried by the greater the amount of skin diseases, the smaller the opportunity. There is such a rumor in our folklore: "An electric shock, to ensure that you have no disease." The meaning of this saying is: "If the human body draws no cold to be shocked by electricity, you will remove a lot of disease." However, this sentence is also very scientific reason, such as the human body in suffering high potential momentary stimulation effect, can form a momentary state of mental tension, so that the human body in the moment to form an overall twitch. Because the human body's neural network of information transfer, is due to the cellular intermolecular potential of the electron flow conduction generated, so it can improve the healthy and sick cells of the potential balance effect, so that the sick cells to get timely recovery.
Why is this so? In folklore, I'm afraid that no one has yet studied the issue of weak electric shocks to the human body, and whether electric shocks can have any mechanistic effect on sick cells in the human body. However, it is also a coincidence to find that a comrade has a localized skin cell pathology, which is also seasonal, and which occurs locally in the fall, winter, and spring, in patches similar to yellow sores. Once in the summer, this skin disease will naturally get well, and in other seasons, his head forehead and back of the localization, will appear in patches of yellow water sores. This state has continued for decades, and these areas itch from time to time, and there is a very thin layer of crust, when the hand to scratch, the crust layer will be scratched off, followed by the flow of sticky secretions. According to the medical point of view, this is a seasonal skin disease, because the autumn, winter and spring seasons dry climate, sweat secretion and less, hygiene is not very good, so it is easy to skin disease.
In the past, this colleague seldom wore close chemical fiber clothing, due to the continuous research and development of new varieties of the clothing industry, a kind of thermal underwear suitable for winter wear out of the production. This kind of underwear is a white single-layer shirt that men usually wear in summer, after which the manufacturer added a furry lining made of chemical fiber material to this kind of underwear. As modern clothing, most of which are chemical fiber clothing materials, it is easy to produce friction between the clothing to generate electricity phenomenon, whenever you take off your clothes to sleep, will feel a high-voltage electrostatic field on the skin's stimulating effect. At this time, the body was electrified numbness, but also in the clothes and the human body between the spark discharge phenomenon. Usually, he did not care, by chance, he found the past body skin disease is no longer, he felt strange for a moment. Only later did he realize that he was due to wear this kind of underwear with fluffy lining played a role.
This discovery, non-trivial, static electricity itself is not a good thing, but for the human body's skin disease or have a certain medical role. Normally, the clothes worn by the human body is charged, is a very bad thing, people will add static elimination solution in water to remove the static reaction on top of the clothes. However, if the human body does not have an abnormal skin condition, you remove the static electricity from the top of your clothing to prevent the many inconveniences that static electricity can cause to the human body. If your skin is not very good, it is recommended that you do not remove the static electricity from your clothes for the time being, or add some clothes made of woolen materials and chemical fibers that are prone to static electricity.
In nature, it is difficult for the human body to be in a high-voltage electrostatic field, and power plants deliver high-voltage alternating current (AC), which does not create static field forces. High-voltage alternating current also produces a discharge phenomenon of electric charge, but with high-voltage electrostatic charge discharge to compare, there is still a different form. High-voltage alternating current discharge point arc is a continuous uninterrupted line of insulation breakdown state, while the electrostatic charge discharge is an instantaneous breakdown of insulation, arc line intermittent discontinuous, and accompanied by a huge air **** vibration of the sound wave transmission, which is what we usually hear the sound of thunder.
Why AC high-voltage discharge there will be a continuous arc insulation breakdown state? Because in the ac high potential field, the space medium will form on the charge of the alternating conversion form, also known as the capacitance, so the capacitance for the ac power, is the electric conduction device. The polarity of the two endpoints of the AC electric field voltage will be in time to do a continuous transformation, when the value of the space insulation to reach its breakdown voltage, the space insulation will be charged to break through the conduction and the formation of the AC high-voltage electric field under the breakdown of the insulation in a continuous arc conductive state, at this time in the circuit, it will form a strong continuous short-circuit current. High-voltage electrostatic field discharge, is an instantaneous intermittent accumulation of large charges on the medium of the breakdown discharge, that is, people hear the "pop" discharge sound. Lightning, is the cause of this strong charge high electric field discharge, that is, the accumulation of charge process release in the accumulation in the release. Chlorine cotton sweater pants with static electricity is said to have a certain effect on rheumatoid arthritis. But synthetic fibers due to electrostatic adsorption of a large amount of dust is inhaled into the respiratory tract, may make bronchial asthma patients sudden asthma at night. Some of the occurrence of pre-systolic premature beats of people, not found to be suffering from heart disease, and no smoking, alcohol or medication and other causes of arrhythmia, but found that many of them are used to wearing chemical fiber clothing. However, many of these patients were found to be habitual wearers of synthetic fibers, which caused arrhythmias due to the release of histamines in the body as a result of the perversion of synthetic fibers.
If that day, we human beings have created a high-voltage electrostatic field suitable for different groups of people, so that people can enjoy the high-voltage electrostatic field to give people the continuation of life and the treatment of disease. At that time, the static electricity will benefit mankind, people are no longer afraid of high-voltage electrostatic field produced by the arc flash.