Question 1: Safe use of oxygen cylinder Oxygen cylinder is a special high-pressure container for storing and transporting oxygen, which consists of four parts: bottle body, bottle hoop, bottle valve and bottle cap. There are two shockproof aprons outside the bottle. The bottle body is sky blue, and the word "oxygen" is marked with black paint to distinguish it from other gas cylinders. As an ideal combustion-supporting gas, oxygen is widely used in welding and cutting. Because oxygen cylinder is a kind of mobile container filled with combustion-supporting compressed gas, it has high pressure, frequent loading and unloading and transportation, and the use environment is messy, so the use of oxygen cylinder is often in an unsafe state. Once an explosion accident happens, it will cause great losses to people's lives and property. 1. There are several hidden dangers in the use and management of oxygen cylinders at present: 1. Filling beyond the inspection period. Medical oxygen cylinders conform to GB5099 standard and "Gas Cylinder Safety Supervision Regulations" of the former Ministry of Labor. The validity period of oxygen cylinders is 15 years, and compulsory inspection is conducted once every three years. It can only be used after inspection. Its purpose is to discover the safety status of oxygen cylinders in time, discover defects and hidden dangers in time, and avoid accidents. However, at present, the phenomenon of oxygen cylinder filling beyond the inspection period is serious, which brings serious hidden dangers to safe use. 2. The attachment is damaged or lost. The accessories of oxygen cylinder include bottle valve, handwheel, bottle cap and shockproof apron. The function of the bottle cap is to prevent the cylinder valve from being damaged or even broken during transportation, so that the gas can be ejected at a high speed, and the cylinder valve and handwheel can be pushed out at a high speed, causing casualties. The shockproof ring is a protective device to prevent the gas cylinder from being hit, which requires a certain thickness and elasticity. The Regulations on Safety Supervision of Gas Cylinders clearly stipulates that protective caps must be equipped when transporting and loading and unloading gas cylinders. However, in actual use, few oxygen cylinders have complete fittings, and most of them have no bottle caps and handwheels. The bottle valves are scarred and the valve stems are bent or even severely deformed, which poses a serious threat to safe use. 3. sun exposure. The Regulations on Safety Supervision of Gas Cylinders stipulates that gas cylinders should be protected from exposure during transportation and use in summer. Because the volume of oxygen cylinder is limited, exposure will increase the temperature of the medium in the bottle, which will lead to a sudden increase in the pressure in the bottle and make the gas cylinder in a dangerous state. Some users did not take sunshade measures during transportation, and put oxygen cylinders in the sun when using them in summer. Especially in summer, the highway temperature often reaches more than 40 degrees. If the gas cylinders themselves are defective, overfilled or collide with each other, explosion accidents may occur. 4. The safety distance is not enough. The Regulations on Safety Supervision of Gas Cylinders stipulates that oxygen cylinders must be kept away from naked flames 10 meters when used, and it is forbidden to be in the same room with acetylene cylinders when stored. Many users ignore this requirement. The distance between the oxygen cylinder and the welding point is less than 10 meter, and the oxygen cylinder and the acetylene cylinder are stored in the same room. Once the gas cylinder encounters an open flame and leaks and explodes, it will cause irreparable losses. 5. Rough treatment. In transportation and use, the phenomenon of rough loading and unloading is very common. For example, for short-distance transportation, the oxygen bottle is pushed down hard and then rolled along the ground; When the vehicle is transported, it is not firmly fixed, and the gas cylinders collide with each other and are directly pushed down from the vehicle. For example, an oxygen factory in a city transported oxygen cylinders to an enterprise by car, and when unloading, the oxygen cylinders were pushed down and hit another cylinder, resulting in two cylinders exploding at the same time. 6. overload. When the oxygen cylinder is filled, it is overloaded due to violation of operating rules or operational errors, which makes the pressure in the bottle rise and exceed its allowable stress, and finally it will explode due to excessive plastic deformation. Second, the safe use of oxygen cylinders should comply with the following points: In order to ensure the safe use of oxygen cylinders, the state has successively promulgated the Regulations on Safety Supervision of Gas Cylinders, the Regulations on Safety Supervision of Dissolved Acetylene Gas Cylinders, the Provisions on Filling Permanent Gas Cylinders and other laws and standards, which have made scientific and clear provisions on the design, manufacture, inspection, filling and use of oxygen cylinders. 1. The oxygen cylinders used must be produced by the designated national manufacturers. The new bottle must have the certificate of conformity and inspection certificate issued by the boiler and pressure vessel safety supervision department. 2. Oxygen cylinders must be inspected regularly according to regulations. It is forbidden to fill expired gas cylinders. 3. Oxygen cylinders are prohibited from contacting grease. Operators shall not wear overalls with excessive oil pollution, and shall not touch oxygen cylinders and their accessories with their hands, gloves and tools.

Question 2: How to use the oxygen cylinder? What are they, medicine or industry?

Question 3: How to use this oxygen cylinder for 20 minutes? Turn on the handle switch to adjust the pressure.

Question 4: How are oxygen cylinders made? One is that seamless steel pipes are heated at high temperature to seal both ends, and the other is that steel ingots are heated at high temperature and then sealed by blowing out inert gas.

Question 5: How to use domestic oxygen cylinders? Water filtration and fall prevention devices must be used.

Question 6: Usage and precautions of oxygen cylinders 1. Before use, check whether there is air leakage at the joint. You can check it with soap liquid to make sure there is no air leakage before doing the experiment. 2. After confirming that the pressure reducing valve is closed (T-shaped adjusting screw is loosened), open the cylinder master valve counterclockwise, observe the reading of the high pressure meter, then open the small switch on the left side of the pressure reducing valve counterclockwise, and then slowly turn the pressure reducing valve adjusting screw (T-shaped rotating rod) clockwise to compress the main spring to open the valve. Make the pressure on the pressure relief gauge reach the required pressure, and record the pressure value on the pressure relief gauge. 3. After use, turn off the cylinder master switch clockwise, and then unscrew the pressure reducing valve counterclockwise. 1. The room must be well ventilated to ensure that the highest hydrogen content in the air does not exceed 1% (volume ratio). Indoor air changes shall not be less than three times per hour, and local ventilation shall not be less than seven times per hour. 2. The distance between oxygen cylinders and containers and gas cylinders containing flammable, explosive and oxidizing gases should not be less than 8m. 3. The distance from naked fire or common electrical equipment should not be less than 10 meter. 4. The distance between air conditioning device, air compressor and ventilation device should not be less than 20m. 5. The distance from other combustible gas storage places should not be less than 20m. 6. Knocking and collision are prohibited; Gas cylinders shall not be close to heat sources; Prevent exposure to the sun in summer. 7. Special oxygen valves must be used. When opening the gas cylinder, the operator should stand behind the valve port and act gently. 8. When the valve or pressure reducing valve leaks, it shall not be used continuously; When the valve is damaged, it is forbidden to replace the valve under the pressure in the bottle. 9. It is forbidden to discharge the gas in the bottle, and the residual pressure should be kept above 0.5MPa.

Question 7: What should I pay attention to when using oxygen cylinders? In order to ensure the safe use of gas cylinders, we must pay attention to the following operating points: 1. Safety technical operation procedures should be strictly implemented, and cylinders should be thoroughly inspected before use. See whether the gas contained in the gas cylinder is consistent with the gas used, and check whether the voltage regulator and pressure gauge are easy to use before use. When installing the pressure reducing valve, it must be carefully tightened and firmly installed. When using, pressure regulator must be used to reduce pressure, and direct deflation is not allowed. When deflating, people should stand at the air outlet side of the bottle, fix the bottle upright, and then slowly unscrew the pressure gauge pointer at the high pressure end of the valve of the bottle to be decompressed. ...

Question 8: How to identify oxygen cylinders and how to use them correctly? Oxygen cylinder: the gas cylinder is blue and marked with the words "oxygen" or "oxygen" in black; But in real life, many gas cylinders are difficult to distinguish because of long-term use, so it is best to ask before using them.

There are national standards for the transportation, operation and filling of gas cylinders. If you just use it, it will be very simple. First, ensure that all valves are closed and the pressure reducing valve is relaxed; Open the valve connected with the gas cylinder, and the pressure of the gas cylinder will be displayed on the left table stored in the pressure reducing valve. Tighten the pressure reducing valve slowly, and the gas will be released gradually.

Question 9: Safe use of oxygen cylinders An oxygen cylinder is a special high-pressure container for storing and transporting oxygen, which consists of four parts: a bottle body, a bottle hoop, a bottle valve and a bottle cap. There are two shockproof aprons outside the bottle. The bottle body is sky blue, and the word "oxygen" is marked with black paint to distinguish it from other gas cylinders. As an ideal combustion-supporting gas, oxygen is widely used in welding and cutting. Because oxygen cylinder is a kind of mobile container filled with combustion-supporting compressed gas, it has high pressure, frequent loading and unloading and transportation, and the use environment is messy, so the use of oxygen cylinder is often in an unsafe state. Once an explosion accident happens, it will cause great losses to people's lives and property. 1. There are several hidden dangers in the use and management of oxygen cylinders at present: 1. Filling beyond the inspection period. Medical oxygen cylinders conform to GB5099 standard and "Gas Cylinder Safety Supervision Regulations" of the former Ministry of Labor. The validity period of oxygen cylinders is 15 years, and compulsory inspection is conducted once every three years. It can only be used after inspection. Its purpose is to discover the safety status of oxygen cylinders in time, discover defects and hidden dangers in time, and avoid accidents. However, at present, the phenomenon of oxygen cylinder filling beyond the inspection period is serious, which brings serious hidden dangers to safe use. 2. The attachment is damaged or lost. The accessories of oxygen cylinder include bottle valve, handwheel, bottle cap and shockproof apron. The function of the bottle cap is to prevent the cylinder valve from being damaged or even broken during transportation, so that the gas can be ejected at a high speed, and the cylinder valve and handwheel can be pushed out at a high speed, causing casualties. The shockproof ring is a protective device to prevent the gas cylinder from being hit, which requires a certain thickness and elasticity. The Regulations on Safety Supervision of Gas Cylinders clearly stipulates that protective caps must be equipped when transporting and loading and unloading gas cylinders. However, in actual use, few oxygen cylinders have complete fittings, and most of them have no bottle caps and handwheels. The bottle valves are scarred and the valve stems are bent or even severely deformed, which poses a serious threat to safe use. 3. sun exposure. The Regulations on Safety Supervision of Gas Cylinders stipulates that gas cylinders should be protected from exposure during transportation and use in summer. Because the volume of oxygen cylinder is limited, exposure will increase the temperature of the medium in the bottle, which will lead to a sudden increase in the pressure in the bottle and make the gas cylinder in a dangerous state. Some users did not take sunshade measures during transportation, and put oxygen cylinders in the sun when using them in summer. Especially in summer, the highway temperature often reaches more than 40 degrees. If the gas cylinders themselves are defective, overfilled or collide with each other, explosion accidents may occur. 4. The safety distance is not enough. The Regulations on Safety Supervision of Gas Cylinders stipulates that oxygen cylinders must be kept away from naked flames 10 meters when used, and it is forbidden to be in the same room with acetylene cylinders when stored. Many users ignore this requirement. The distance between the oxygen cylinder and the welding point is less than 10 meter, and the oxygen cylinder and the acetylene cylinder are stored in the same room. Once the gas cylinder encounters an open flame and leaks and explodes, it will cause irreparable losses. 5. Rough treatment. In transportation and use, the phenomenon of rough loading and unloading is very common. For example, for short-distance transportation, the oxygen bottle is pushed down hard and then rolled along the ground; When the vehicle is transported, it is not firmly fixed, and the gas cylinders collide with each other and are directly pushed down from the vehicle. For example, an oxygen factory in a city transported oxygen cylinders to an enterprise by car, and when unloading, the oxygen cylinders were pushed down and hit another cylinder, resulting in two cylinders exploding at the same time. 6. overload. When the oxygen cylinder is filled, it is overloaded due to violation of operating rules or operational errors, which makes the pressure in the bottle rise and exceed its allowable stress, and finally it will explode due to excessive plastic deformation. Second, the safe use of oxygen cylinders should comply with the following points: In order to ensure the safe use of oxygen cylinders, the state has successively promulgated the Regulations on Safety Supervision of Gas Cylinders, the Regulations on Safety Supervision of Dissolved Acetylene Gas Cylinders, the Provisions on Filling Permanent Gas Cylinders and other laws and standards, which have made scientific and clear provisions on the design, manufacture, inspection, filling and use of oxygen cylinders. 1. The oxygen cylinders used must be produced by the designated national manufacturers. The new bottle must have the certificate of conformity and inspection certificate issued by the boiler and pressure vessel safety supervision department. 2. Oxygen cylinders must be inspected regularly according to regulations. It is forbidden to fill expired gas cylinders. 3. Oxygen cylinders are prohibited from contacting grease. Operators shall not wear overalls with excessive oil pollution, and shall not touch oxygen cylinders and their accessories with their hands, gloves and tools.

Question 10: How to use domestic oxygen cylinders? Water filtration and fall prevention devices must be used.