Safety and protection of flame spraying oxyacetylene flame spraying

1. Before the pressure reducer is loaded into the oxygen cylinder, the oxygen valve should be slightly opened to blow away the dirt, so as to avoid dust and garbage from entering the pressure reducer and blocking it, causing accidents.

2, it is forbidden to oxygen cylinders and acetylene cylinders and other flammable gas cylinders together; Combustible, grease and oily articles cannot be transported in the same car as oxygen cylinders.

3. When handling oxygen and acetylene cylinders, the protective cap on the bottleneck should be installed. When in use, it should be placed in a proper and reliable place to remove the protective cap on the bottleneck. When pulling the bottle cap, you can only unscrew it by hand or wrench, and it is forbidden to knock it with a metal hammer to prevent sparks and accidents.

4. Screw the nut of oxygen pressure gauge on the oxygen bottle mouth for at least 6~8 buttons. The threaded joint should be tightened, and the adjusting screw of the pressure gauge should be loosened.

5. After installing the oxygen cylinder and the pressure reducer, slowly open the oxygen valve, and check whether the joint between the pressure reducer and the oxygen cylinder leaks and whether the indicator is flexible. When opening the oxygen valve, do not face the pressure reducer, but stand on the side or back of the pressure reducer. Fireworks or open flames are not allowed when checking air leakage, but soapy water can be used to check whether there is air leakage.

6, it is forbidden to oxygen cylinder mouth contact grease, or use an oily wrench to screw oxygen cylinder valve and decompression connecting screw. It is also not allowed to wear oily gloves to avoid burning and explosion accidents.

7. Oxygen cylinders, acetylene cylinders and pressure reducers should be properly placed before and after use to avoid impact and vibration.

8. When acetylene cylinders and oxygen cylinders are used, they should be placed vertically and fixed with brackets to prevent them from falling.

9. Keep the distance between oxygen cylinders and acetylene cylinders, inflammable and explosive articles or other open flames above 8 ~ 10 meters. In some cases, if it is really difficult to reach 8 ~ 10 m, it should be guaranteed not to be less than 5 m, but the protection must be strengthened.

10, the oxygen in the oxygen cylinder is not allowed to be completely used up, and at least a residual pressure of 1 ~ 2kg/cm2 is left.

1 1. If the bottle valve and pressure reducer are frozen in winter, they can be thawed with hot water, steam or infrared light cannon, and it is forbidden to use open flame for heating.

12, it is forbidden to slam each part of the gas cylinder with iron, and do not screw the adjusting screw of the pressure gauge to prevent the air flow from rushing out at high speed, resulting in high temperature due to local friction and accidents.

13. When working in the open air in summer, oxygen cylinders and acetylene cylinders should avoid direct exposure to the scorching sun to avoid gas expansion and explosion. They must be placed in the arbor or covered with wet cloth.