Why loading and unloading oxygen cylinders, work clothes and loading and unloading tools must not be

Oils and fats, especially unsaturated fatty acids.

The grease is easily vaporized and exothermic. The spontaneous combustion of oil yarn and oilcloth is due to the oxidation in the air, and the heat does not dissipate, and spontaneous combustion is caused when the spontaneous ignition point is reached. However, grease vaporizes slowly in the air, and the heat generated is quickly dissipated, and it is generally not easy to gather heat and spontaneously combust.

Due to the strong oxidizing properties of pure oxygen, it can promote the violent combustion of combustibles. Oils and fats meet pure oxygen, which vaporizes much faster and releases a lot of heat at the same time. The temperature rises rapidly and can quickly cause combustion.

If the mouth of the oxygen cylinder is stained with grease, when the oxygen is rapidly ejected, the grease will quickly oxidize.

Moreover, the heat generated by the friction between the high-pressure air flow and the bottle mouth further accelerates the oxidation reaction, which is contaminated with the oxygen cylinder or pressure reducing valve.

The grease on the oil will cause combustion and even **, which is why the oxygen cylinder, especially the bottle nozzle and the accessories in contact with oxygen, are strictly forbidden to contact with the grease.

1. There should be signs strictly prohibiting grease on oxygen cylinders and in the warehouse where oxygen is stored, reminding people that in addition to oxygen cylinders that are not allowed to contact grease, including accessories that are in contact with oxygen (such as pressure reducing valves, welding torches, gas hoses, etc.), cannot contact grease.

2. The warehouses and transport vehicles where oxygen cylinders are stored are strictly forbidden to store and transport with grease and grease articles. If the warehouse and vehicle are contaminated with oil, they must be completely removed before they can be stored or shipped.

3. Oxygen cylinders should be stored and transported with safety helmets to prevent the intrusion of grease or dust or mechanical damage to the mouth of the oxygen cylinder.

4. For the use, storage, transportation, operation and management personnel, they are not allowed to wear oil-stained work clothes, gloves, etc. to contact oxygen cylinders and their accessories.

5. If the cylinder is stained with grease and grease substances, it should be wiped with carbon tetrachloride or cleaning agent in time, but it should not be wiped with combustible organic solvents.

Oil is flammable, and oxygen is a combustible. The two must not be put together.

The oil undergoes a combustion reaction when it encounters oxygen.

Due to the violent collision or impact of the gas cylinder, an accident will occur, and the consequences will be very serious.

Because the gas cylinder is a pressure vessel, it is easy to leak or ** if it is not lightly loaded and unloaded.

Hello, the operator can not wear gloves stained with oil, carry and open gas cylinders. Due to static electricity, grease gloves come into contact with flammable gases, causing fire accidents. Preventive Controls :

The mouth of the oxygen cylinder and the pressure reducing valve shall not be stained with oil. Workers are forbidden to use oil-stained gloves, cotton yarn and grease-stained tools to open and close gas cylinder valves.

Otherwise, it's very easy, we have a hydrogen cylinder here to hit the car when it is unloaded, but fortunately, we can pick up a life and get disabled.

Cylinder Transportation:

1. Before moving, check that the two shockproof rings of the gas cylinder are complete, the bottle cap should be tight, and the safety accessories are complete and effective;

2. Gas cylinders should be lifted and handled gently, and it is strictly forbidden to collide, throw, roll, anti-collision and fall, and it is forbidden to load and unload gas cylinders with electromagnetic machinery;

3. The bottle valve shall not be aligned with the person;

4. Oxygen shall not be transported by oil-stained vehicles, and oil-stained clothes and hand-suited unloading cylinders shall not be worn, and gas cylinders stained with oil can be wiped clean with carbon tetrachloride;

5. Oxygen and acetylene cylinders shall not be transported in the same car, if the acetylene cylinders and oxygen cylinders need to be transported on the same trolley during the operation, they must be separated by non-combustible material partitions;

6. It is forbidden to use unstable vehicles such as bicycles and cranes to transport gas cylinders.

Safety management of the use of oxygen cylinders and acetylene cylinders.

1. A special person should be responsible for the storage and use of oxygen and acetylene, and the management personnel should be trained and qualified. When it is necessary to operate, it must be confirmed by the responsible person, and it is not allowed to pull away from the storage place of the gas cylinder room without permission;

2. The operator must carefully check whether the connection between the hose and the welding is firm and whether the hose is damaged before operation; 3. It must be strictly implemented in accordance with the operating procedures;

3. Open the bottle valve slowly and use a special opening tool, and do not knock or open the valve quickly; 4. It is strictly forbidden to use overpressure and artificially heat gas cylinders, and it is strictly forbidden to open the valve of oxygen cylinders with oily gloves; 5. When the acetylene bottle is used, it must be upright, and measures should be taken to prevent dumping, and it is strictly forbidden to use it horizontally;

6. At the site of the use of acetylene cylinders, the storage of acetylene gas shall not exceed 30m3 (equivalent to 5 bottles, referring to acetylene cylinders with a nominal volume of 40L);

7. Do not use up all the gas in the bottle, and at least leave residual pressure; 8. When checking the bottle valve, only soapy water is allowed to be used; 9. Gas cylinders should not be close to heat sources and electrical equipment;

10. In summer, there should be shading measures outdoors to prevent exposure to the sun, and the distance from the open flame should be greater than 10 meters (parallel distance from the vertical ground when working at height);

11. It is forbidden to use gas cylinders without pressure reducers;

12. When the oxygen cylinder and the electric welding are working in the same place, the bottom of the bottle should be padded with an insulating material to prevent it from being strung into the secondary circuit of the electric welding machine;

13. Gas cylinder leakage should be moved to an outdoor open space for treatment, fireworks are strictly prohibited around the treatment site, and welders can be found to assist if they do not know how to deal with it.

Oil is combustible, and oxygen fuels combustion. The two come into contact with each other, and once a spark causes oil to burn and oxygen to leak, it will occur**.

Check this out.

In fact, there is no special chemical reaction, just a violent combustion of higher fatty acids and hydrocarbons. Nothing special.

In fact, oxygen cylinders do not react with grease. Rather, it is the easy oxidation and exothermic of oils, especially unsaturated fatty acids. Therefore, if the heat released by the oxidation of the oil on the bottle is not fully released and continues to accumulate, it may burn when it encounters some cotton sticking to the bottle, in short, it is relatively fine and has a relatively low flammability point.

and then affect the safety of oxygen cylinders, causing **. It's not that the grease reacts to the bottle. Thank you.

These items are gases that are compressed into compressed gas or liquefied gases and stored in pressure-resistant containers. It has the hazard of damage to the container due to heat, impact or gas expansion. It is divided into four categories: highly toxic gas, flammable gas, combustible gas and non-flammable gas.

Such as liquefied nitrogen, compressed oxygen, acetylene, compressed chlorine, etc. are all such items.

Lifting frames or trucks should be used in the loading and unloading of such items, and no slope rolling should be allowed. Do not aim the cylinder head valve at the person when handling. Pay attention to prevent the cylinder helmet from falling.

Highly toxic gas cylinders should be prevented from leaking. If there is a leak, it should be immersed in lime water or water to prevent stevedores from inhaling toxic gases. Loading and unloading implements should be protected against sparks.

The installation position shall not be close to the cabin and other parts. Toxic gases should also be ignored in the crew's bedrooms and galleys. After loading, it should be bundled to prevent rolling. Cylinders can be stacked horizontally, no more than 6 stacks. Oxygen must not be loaded with grease in the cabin.