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Industrial Safety and Health for Goods and Materials Services - Chapter 10

Có hai loại mối nguy hiểm liên quan đến việc sử dụng, lưu trữ và xử lý chai khí nén: các mối nguy hóa học liên quan đến các nội dung xi lanh (ăn mòn, độc hại, dễ cháy, vv) và các mối nguy hiểm vật lý đại diện bởi sự hiện diện của một cao tàu áp lực tại nơi làm việc hoặc phòng thí nghiệm. Hình 10.1 phác thảo một số các thuộc tính vật lý của xi lanh khí nén và mô tả một số những nguy hiểm có thể do sử dụng không đúng. Cho dù. | 10 Compressed Gases Compressed gases have a variety of uses and require special handling procedures. There are two types of hazards associated with the use storage and handling of compressed gas cylinders the chemical hazard associated with the cylinder contents corrosive toxic flammable etc. and the physical hazards represented by the presence of a high-pressure vessel in the workplace or laboratory. Figure 10.1 outlines some of the physical attributes of compressed gas cylinders and describes some of the dangers that may result from improper use. Whether we like it or not there are always safety rules to follow. But when it comes to safety procedures for compressed gas these rules are doubly important. They should be practiced daily because the safe way is the only way. When dealing with compressed gases there are several items that one needs to be aware of at all times so that handling transporting storage and use of compressed gas cylinders can be accomplished efficiently and safely. Mishandled cylinders may cause a violent rupture releasing the hazardous contents or the cylinder itself which can become a dangerous projectile. If the neck of a pressurized cylinder breaks accidentally the energy released would be sufficient to propel the cylinder to over three-quarters of a mile in height Figure 10.2 . A standard 250 cu ft cylinder pressurized to 2500 psig can become a rocket attaining a speed of over 30 miles h in a fraction of a second after venting from the broken cylinder connection. 2008 by Taylor Francis Group LLC. 9 in.-O.D. Oxygen capacity of cylinder 244 cu ft at 2200 psi pressure at 70 F I stand 57 in. tall. I am 9 in. in diameter. I weigh in at 155 lb when filled. I am pressurized at 2200 psi. I have a wall thickness of about in. I wear a label to identify the gas I am holding. My color is not the answer. I transform miscellaneous stacks of material into glistening plants and many other things when properly used. I may transform glistening plants and