Compressor is to be used enrage mechanical energy translate into body energy, give gas pressure boost or feeding mechanical equipment. Regard a kind of electrified high pressure as equipment, compressor is moving, use process is full of a risk constantly. These risks have those who be aimed at compressor machine itself already, also have what operate etc management, maintenance technician in the light of equipment.
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The gender analyses risk of pneumatics machine oneself
(1) has oxidation property as a result of air, fall in higher pressure especially, carry a system to have higher velocity of flow again, because the danger of this system has oxidation already (hot) dangerous, have high speed to wear away again the danger that reachs attrition. Because the air cylinder of compressor, lay aside is enraged implement, air is carried (exhaust) cop because overheating, super- press OK happening to explode, accordingly, the mechanical temperature of each component should control compressor inside limit.
(The lube of 2) pulverization or its are decomposed content and it is OK to compress air to mix cause explosion.
(3) compressor oil seal and lubricant system or air entrance gas do not accord with a requirement, make a large number of oil kind, hydrocarbon kind etc enter, deposit at the system low-lying place, for example flange, valve, moire canal, change diameter place, below high-pressured gas action, gradually by pulverization, oxidation, knot anxious, char, decompose, make potential requirement of explosion.
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(The work with the non-standard cleanness of the air of 4) moisture and system, cold alternant heat makes possibly be in charge of wall to produce iron to become rusty, flake below action of high speed gas, become ignition source.
(5) air reduces a process medium be not stabilized and breathe heavily brace up condition can bring about medium temperature to lift suddenly. As a result of,this is the fluid inside the system (air) the result that local below sudden action heat insulation reduces effect.
(When 6) is undertaking repairing installing the job, wipe the combustible liquid such as content, kerosene, benzine to fall into cylinder, lay aside to enrage implement reach inside air conduit, explosion can be caused when pneumatics machine starts.
(7) compresses the mechanical intensity of part of systematic press press not to accord with a standard.
(8) compresses air pressure to exceed a regulation.
Above circumstance all causes pneumatics engine trouble likely or pneumatics engine explodes the happening of the accident.
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Pneumatics machine hurts a venture to human body
The harm risk to human body basically includes pneumatics plane: 1. The person of scald of place temperature Gao Yi such as pneumatics aircraft nose, oil cylinder; 2. The high pressure inside pneumatics machine gas tank may cause harm to personnel; 3. Pneumatics is started suddenly when machine overhaul, easy cause harm of equipment, personnel.
Actually, above is to come from equipment character to the risk of human body, want to abide by working rules strictly to be able to avoid only. Return some risks to come from to compressing airy misapplication and devoid vigilance. For example, with compress air to blow the dress to go up or work dirty content of the place is not a good idea absolutely.
Although a lot of people know to use compress air to clear drossy or the dress can cause harm, but compress air as a result of what go to the lavatory in old bad habit and yard place, it still is used so undeservedly by people. However, must remember, use compress air to come the act that clean object, machine, workbench, dress and other thing are danger, strong air current or the petty grain in compressing air can cause person harm.
Yard place compresses what air tool uses to compress air pressure to be in about 0.6 ～ 0.8MPa, the 3 ～ of the car tire pressure that it is equivalent to filling air completely 4 times. So, although be very useful the sources of energy,compress air, but if cannot be used correctly,perhaps use purpose error, it causes serious harm and disaster very easily.
1. pounds harm
(1) relies on pressure, compress air to be able to sweep little grain grey bits, but these grey bits can develop an eye however or abrade skin. Likely destruction degree depends on these are blown the size of a grain, weight, appearance, composition and speed.
(2) compresses air itself is a serious and harmful source. Below extreme circumstance, compress air to be able to open an organization to enter blood stream through skin cut or body. On medicine, the bleb in blood stream is like thrombus same, form dangerous hematic flow resistance to break. The thrombus in artery because of size, duration and position different, can cause insensible, break down or die.
In 40psi (about 2.7 standards are baric) below pressure from from ear 4 inches (about 10 centimeters) place can blow ear film defeat or cause cerebrum loss. In small send 12psi (about 0.82 standards are baric) below pressure, can blow eyeball from orbit. Compress air to be able to pass dress insufflate navel even, and bring about intestines blowout. Blow continuously to the mouth, compress air to be able to be blown crack lung.
2. explosion is harmed
Compress gas to have energy, once burst is compressed,gas is met rapid leak, may cause aeriform explosion. When compressing tube to work, the high-pressured air that rises suddenly in tube can make tube bounces, bring about work staff eye facial be harmed.
News case 1
On May 28, 2013, yantai developing zone a few men of a company joke together, among them one man is used to compress air to be in charge of by the colleague from anal infuse air, intestines within an inch of is blown to explode.
Fang Mou and Luo Mou work in foundry of company of some alloy products, it is better to concern at ordinary times. Fang Mou is working clearance, see Luo Mou crouchs on the ground to work, plan embarrass Luo Mou. He has been taken from inside fellow worker hand blow those who grind a rubbish to use to compress air to be in charge of, go behind Luo Mou to go up toward its buttock whiff. Who knows Luo Mou to fall down at once, the hand covers abdominal complexion is cadaverous. Fang Mou became confused hands or feet, report rapidly manufacturer, manufacturer be about to Luo Mou sends to the hospital. Hospital inspection discovers burst already formed Luo Mou large intestine to be hurt again, just fill cracked large intestine via two operations had received, around costs more than yuan 40 thousand, all by Fang Mou burden.
News case 2
2008, a few laborers of an unit are helping Shanghai dragon Wu Lu up an expression anguish, abdominal distension if bosomy fellow worker comes to Wu Jing hospital, goldbrick person is worked in the same place to be in infuse to compress air from anus, bear hard sorely, requirement make a diagnosis and give treatment. Send the patient instantly between emergency call take a room. Classics is preliminary diagnose, patient already bowel is perforative. The doctor made a report to courtyard leader at once, started lash-up rescue program. Through a rescue of half hours of insecurity, take a turn to be out of danger of this sick talented person.
Original, before morning shift came off work that day, old master is using the compresses air to blow the dress to go up dirt in the workshop, in the laborer behind Wu Mou feels amused, compress additionally one airy pipe disclose to enter the old master anus that did not guard against actually, the gas disgorge with an extremely immediately strong pressure enters its body.
Old master feels abdominal instantly very bilge, very painful, be sent cure of Wu Jing hospital by the fellow worker. The doctor says, compress air by infuse body very dangerous, if cure gets evening, form acute afterwards very easily to send sexual peritonitis, cause infection death. Doctor Zhao admonishs say, compress air to cannot enter human body, it is painful that eliminate can cause patient extreme beyond, because this is caused,be affected easily still and die.
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Compress air safety to run a requirement
Before 1. is used
Using before compressing air to work, work staff should make the preparation before good work, of the member that get exercise controller or assigner approbate. Exercise controller or appoint personnel to be able to inspect actual condition to supervise and be checked to preparing the job to execute.
2. exercise spot is checked
If be used in dangerous area,compress air, before reentry works all right, should use portable can light air detector to detect of the spot can light air chroma, in can light air chroma to be worth under lower explosion limit 10% when Fang Nengyun makes work.
3. personnel defends examination
Using before compressing air to have operation, work staff should wear protective equipment, wait like blinkers.
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The risk controls a principle
1. is not taken forever compress air to joke, it is possible deadly;
2. is not used forever compress air cleanness clothings, hair and body;
3. is not used forever tracheal point to anybody continuously, at any time personnel won’t lie beside the attention under high-pressured air current. Tracheal and free time, point to its plantar direction downward;
4. apparels proper protective equipment, use when compressing air, must wear defend glasses. Remember please, inadequacy of garment of average worker worker protects high-pressured air in case.
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Use note
Tube of the examination before 1. is used and connect join whether correctly;
2. often is checked tracheal, discovery is injured be repaired instantly or change;
3. tube does not place the place that causes tripping harm at the likelihood;
If 4. wants to span passageway, should will tracheal be hanged at altitude or ensure it has sufficient alert;
Component of system of 5. pneumatics engine wants regular examination.