Legal analysis: 1. The business area of 50kg single-valve liquefied petroleum gas cylinders used in restaurants should be more than 500m2, and an independent gas cylinder room should be set up, which should comply with the Code for Design of Town Gas (GB50028- 2006), and the gas cylinder room should be well ventilated and have a door leading to the outside.

2. It is forbidden to use 50kg gas-liquid double-ended liquefied petroleum gas cylinders in restaurants; 3.50kg(YSP 1 18) should use less than 8 steel cylinders;

The kitchen and gas tank are separated. There are no doors and windows in the wall, and the hose shall not pass through the wall, doors and windows;

5. The height between gas cylinders should be not less than 2.2m, and combustible gas concentration alarm devices should be installed inside, and there should be no underground structures such as heating ditches and floor drains; Externally, obvious safety warning signs should be set up; Lighting electrical equipment should be explosion-proof, and the electrical switch should be set outdoors.

Legal basis: Article 79 of the Notice on Printing and Distributing issued by the State Bureau of Quality and Technical Supervision shall observe the following provisions when using gas cylinders:

1. Buy and use qualified products of enterprises with manufacturing licenses, without using expired gas cylinders;

2. Users must go to the registered filling unit or registered distribution unit to buy gas;

3. Check the safety status of gas cylinders before use, and confirm the gas contained. Gas cylinders that do not meet the safety technical requirements are strictly prohibited from being put into storage and used; When using, the gas cylinder must be used in strict accordance with the requirements of the instruction manual;

4. The storage position of gas cylinders shall not be close to heat sources and open flames, and the cylinders shall be kept dry. Gas cylinders containing easily polymerizable or decomposable gases should avoid radioactive sources;

5. When the gas cylinder is placed vertically, take measures to prevent dumping;

6. Avoid exposure in summer;

7. It is forbidden to knock and collide;

8. It is forbidden to carry out electric welding arc ignition on the gas cylinder;

9. It is forbidden to use a heat source with a temperature exceeding 40℃ to heat gas cylinders;

10. The gas in the bottle must not be exhausted, and there must be residual pressure or weight. The residual pressure of the permanent gas cylinder shall be no less than 0.05Mpa；; Liquefied gas cylinders should be filled with residual gas of not less than 0.5% ~ 1.0%;

1 1. Where backflow may occur, the equipment used must be equipped with devices to prevent backflow, such as one-way valves, check valves and buffer tanks.

12. Users and distributors of liquefied petroleum gas cylinders are prohibited from turning the gas in the cylinders to other cylinders and disposing of the residual liquid in the cylinders by themselves;

13. After the gas cylinder is put into use, the cylinder body shall not be repaired or welded;

14. It is forbidden to change the steel seal and color code of gas cylinders without authorization.