Liquefied gas, which is safe to use with acetylene

Safe with acetylene.

Liquefied gas is liquefied petroleum gas.

Although the fire point is low, there is a danger of easy **. Ignition is done with a mixture of 20 percent CO2 or 14 percent hydrogen**. So it's safe with acetylene.

Tempering. That is, the acetylene oxygen is not tightly closed, and there is still fire in the gun head, which will burn the welding torch head and gun body for a long time. If you turn it on again without knowing it, acetylene will**. In addition, if the pipe between the tip and the body of the gun is suddenly extinguished, it will continue to heat up.

At this time, there may be a situation of tempering, just turn on the oxygen, and it will slowly become normal.

During the safety inspection of the project, it was found that individual projects blindly used petroleum liquefied gas instead of acetylene gas for welding and cutting operations at the construction site, and the welding and cutting tools used were oxyacetylene welding and cutting tools, and the liquefied petroleum gas cylinders were not equipped with any anti-tempering devices and pressure reducing devices, and there were no sun protection measures when the gas cylinders were used. This phenomenon can easily cause gas cylinders**, causing unnecessary losses. Can liquefied petroleum gas be used on-site instead of acetylene gas?

The author elaborates on this issue as follows:

It is feasible in principle to use liquefied petroleum gas cylinders to fill liquefied petroleum gas (oxygen liquefied petroleum gas) instead of dissolved acetylene gas (oxyacetylene) for welding and cutting operations, but the following must be done:

1. The LPG cylinder shall not be overloaded when flushing, and there must be a gas space of 10 20 to prevent the LPG from producing high-pressure gas with the increase of ambient temperature.

2. At the welding and cutting operation site, the LPG cylinder should be kept at a distance of more than 5m from the oxygen cylinder and more than 10m from the open flame.

3. LPG cylinders and oxygen cylinders shall not be exposed to the sun.

4. When welding and cutting oxygen liquefied petroleum gas, liquefied petroleum gas cylinders and oxygen cylinders must be equipped with special flashback preventers and pressure reducing devices.

5. Special oxygen-liquefied petroleum welding torch (injection suction liquefied gas, natural gas welding and cutting torch) should be used when welding and cutting oxygen liquefied petroleum gas.

6. Oxygen liquefied petroleum gas welding and cutting operators should be strictly trained and assessed, and obtain the corresponding qualification certificates.

Liquefied petroleum gas and dissolved acetylene gas are quite different in physical and chemical properties such as calorific value, combustion rate, range and density of gas mixed with air, and the safety precautions for their use are also different. Operators must improve safety awareness and strictly abide by the operating rules to ensure the safety of the use process.

The ** limit of liquefied gas is, and the ** limit of acetylene is, so liquefied gas is easy to reach the ** limit, and it can also be said that liquefied gas is unsafe!

Whether acetylene gas or liquefied gas is used for gas cutting to save money, the welder said that safety is the most important thing.

Both are unsafe and both are flammable.

AcetyleneGas cylinders must be equipped with special pressure reducers, flashback preventers, the foundation car must be checked before use, otherwise it is forbidden to use, when opening, the operator should stand behind the side of the valve, the action should be gentle.

Gas cylinders should not be close to heat sources and electrical equipment, and there should be shading measures to prevent exposure to the sun in summer, and the distance from the open flame should be greater than 10 meters (parallel distance from the vertical ground when working at height). When the bottle valve is frozen, it is strictly forbidden to bake with fire, and it can be thawed with warm water below 10.

It should be avoided put together.

Precautions for the use of acetylene bottles

1. The acetylene bottle should be avoided from being violently impacted and shaken as much as possible, so as not to cause the acetylene bottle to pretend to be sharp.

2. When using acetylene bottles, they should be kept upright, and it is forbidden to use them horizontally to avoid acetone.

Outflow, causing combustion**.

3. The acetylene bottle should not be close to the heat source, and the temperature on the surface of the acetylene bottle should not exceed 30 40, and the distance from the open flame should not be less than 10 meters. Too high a temperature will reduce the solubility of acetone to acetylene.

As a result, the acetylene pressure in the bottle increases dramatically.

4. It is strictly forbidden to use rope hoisting and electromagnetic crane to carry acetylene bottles, and when the site moves frequently, it should be loaded on a special trolley.

The above content refers to the Encyclopedia - Acetylene Bottle Hall only.

Summary. Hello, it is a pleasure to serve you and give you the following answer: liquefied gas can be used together instead of acetylene and oxygen, but there are certain risks, because liquefied gas is a strong oxidizing agent, and if it comes into contact with acetylene, it may cause **.

In addition, acetylene and liquefied gas also have chemical reactions, which may produce harmful substances. The solution to this problem is:1

When using liquefied gas, relevant safety regulations should be observed, such as proper handling, safe storage, and air cleanliness. 2.In the process of using liquefied gas and acetylene, mixing these two substances together should be avoided to avoid reactions.

3.When mixing liquefied gas and acetylene, high temperatures and pressures should be avoided to avoid occurring**. 4.

When using liquefied gas and acetylene, appropriate safety equipment should be used, such as explosion-proof equipment, fire protection equipment, etc. 5.Safe operating procedures should be established to ensure the safe use of liquefied gas and acetylene.

Can liquefied gas be used together with acetylene instead of oxygen.

Hello, it is a pleasure to serve you and give you the following answer: liquefied gas can be used together instead of acetylene and oxygen, but there are certain risks, because liquefied gas is a strong oxidizing agent, and if it comes into contact with acetylene, it may cause **. In addition, acetylene and liquefied gas also have chemical reactions, which may produce harmful substances.

2.In the process of using liquefied gas and acetylene, mixing these two substances together should be avoided to avoid reactions. 3.

When mixing liquefied gas and acetylene, high temperatures and pressures should be avoided to avoid occurring**. 4.When using liquefied gas and acetylene, appropriate safety equipment should be used, such as explosion-proof equipment, fire protection equipment, etc.

5.Safe operating procedures should be established to ensure the safe use of liquefied gas and acetylene.

Fellow, I really didn't understand, I can be more specific.

Hello, it is a pleasure to serve you and give you the following answer: liquefied gas can be used together instead of acetylene and oxygen, but there are certain risks, because liquefied gas is a strong oxidizing agent, and if it comes into contact with acetylene, it may cause **. In addition, acetylene and liquefied gas also have chemical reactions, which may produce harmful substances.

2.In the process of using liquefied gas and acetylene, mixing these two substances together should be avoided to avoid reactions. 3.

When mixing liquefied gas and acetylene, high temperatures and pressures should be avoided to avoid occurring**. 4.When using liquefied gas and acetylene, appropriate safety equipment should be used, such as explosion-proof equipment, fire protection equipment, etc.

5.Safe operating procedures should be established to ensure the safe use of liquefied gas and acetylene.

Can acetylene pressure gauges be used for liquefied gas cylinders? Hello dear, can not be universal. Acetylene pressure gauges cannot be used on liquefied gas stoves.

Although industrial products are more reliable and sophisticated than civilian ones. However, acetylene is a special gas, and related appliances have special pertinence in design and manufacturing, and may not be suitable for other uses. At least in the safety management of the plant, the acetylene pressure reducing valve cannot be substituted for other purposes, and the acetylene pressure reducing tambi valve is not allowed to be used elsewhere.