The specific safety distance is as follows

The clear distance between the flue and the nonflammable ceiling or wall should not be less than 1.15m; Clear distance from flammable ceiling or wall should not be less than 1.25m；; The clear distance between the cooker and the steel cylinder should not be less than 1.5m；; The cooker and steel cylinder should be connected by single bottle and single stove. The length of the hose used for the connection between the cylinder and the cooker should be controlled between 1.2 and 2.1m, and there should be no interface.

cylinder storage requirements for liquefied gas tanks used in catering industry

1. Use and spare cylinders should be placed separately or separated by firewalls.

2. When the total weight of used and standby liquefied petroleum gas exceeds 111kg, a special gas cylinder room shall be set up as required, and the gas cylinder room shall be set by the external wall of the building; When the total weight is less than 421 kg, the gas cylinder room can be set in a single-story special room adjacent to the gas-using building;

when the total weight is more than 421kg, the gas cylinder room shall be set in an independent building room with a distance of not less than 1.2m from other civil buildings. When the distance from other buildings and the total weight of liquefied petroleum gas stored in the gas cylinder library exceed 1,351kg, it shall be implemented according to the corresponding national standards and specifications.

3. The normal service life of the cylinder pressure reducer is 5 years, and the normal service life of the sealing ring is 3 years. However, it should be checked frequently at ordinary times. If any abnormality is found, it should be replaced immediately and recorded.

4. LPG cylinders should not be used in high-rise civil buildings. LPG cylinders should be supplied by pipelines, and rooms or parts using LPG should be set by external walls.

5. The location of the special bottle depot should be close to the use location, and the place with flat terrain and not easy to accumulate liquefied petroleum gas should be selected.

6. The special bottle storehouse shall not be located on heating ditches, inspection holes and any underground structures. There must be no floor drain in the bottle warehouse, and the ground should be flat and higher than the outdoor level.

7. The bottle warehouse should be well ventilated. Louvers should be installed at the lower part of the door or wall. The vent is connected with the outdoor atmosphere. The lower edge of the vent is less than 1.2m from the indoor ground level. The doors and windows are open to the outside, but it is not allowed to lead to the operation room and other rooms.

8. The height of the dedicated gas room shall not be less than 2.2m Fixed combustible gas concentration alarm device and forced ventilation facilities shall be set up, and the concentration alarm device shall be interlocked with the ventilation facilities. Explosion-proof electrical equipment shall be used, and the switch shall be set outdoors. The surrounding area shall be designated as a no-fire area, obvious warning signs shall be set up, and a corresponding number of dry powder fire extinguishers shall be equipped.

9. emergency cut-off valve should be set on the main gas pipeline of the bottle group gas supply system.

11. When the pipeline passes through the foundation wall of the building, it should be laid in the casing.

11. Electrostatic jumper should be made between each pair of flanges in the pipeline system.

Requirements for the use of gas appliances in catering industry

1. Gas cookers should be products published in Datong Gas Burning Appliances Sales Catalogue, pressure regulators should have production licenses, evaporators should be products produced by manufacturers with corresponding pressure vessel manufacturing licenses, and the products should be supervised and inspected by special equipment inspection and testing institutions approved by quality inspection departments, and the installation and maintenance of gas burning appliances should be undertaken by professionals of enterprises qualified for installation and maintenance of gas burning appliances.

2. The clear height of the operating room where gas cookers are installed shall not be less than 2.2m, and it shall be well ventilated.

3. Effective fire prevention and heat insulation measures should be taken between the cooker and the combustible or flame-retardant wall.

4. The clear distance between cookers and between cookers and the opposite wall should meet the requirements of operation and maintenance.

5. The cauldron stove and the Chinese cooking stove should have smoke exhaust facilities, and the furnace and flue of the cauldron stove must be provided with blasting doors.

6. The smoke exhaust facilities of the cooker shall not be the same as those of the equipment using solid fuel; Each gas equipment should adopt a separate flue; When multiple devices share a common flue, it should be ensured that the smoke exhaust does not affect each other.

7. The clear distance between the flue and the nonflammable ceiling or wall should not be less than 1.15m; The clear distance from the flammable ceiling or wall should not be less than 1.25m.

8. The clear distance between the cooker and the steel cylinder should not be less than 1.5m.

9. The cooker and the steel cylinder should be connected by single bottle and single stove. The length of the hose used for the connection between the cylinder and the cooker should be controlled between 1.2 and 2.1m, and there should be no interface.

11, the hose should be oil-resistant rubber hose. The connection between hose and gas pipeline, joint pipe and cooker should be fixed by compression nut (lock nut) or pipe clamp. Hoses shall not go through walls, windows or doors. Rubber hoses should be replaced every 2 years. If there are problems such as aging and corrosion, they should be replaced immediately.

11, the operation room should be equipped with portable dry powder fire extinguishers, fire blankets and other fire fighting equipment.

12. If gas is supplied by bottle group or multiple cookers are supplied by a single gas cylinder, it shall be connected by hard pipes and the gas equipment shall be fixed.

Extended information:

Prohibition requirements

(1) Do not buy bottled liquefied petroleum gas from enterprises that have not obtained the qualification of Gas Business License.

(2) unqualified or scrapped cylinders shall not be used, and cylinders that have been regularly inspected by the quality inspection department must be used.

(3) it is forbidden to flip the gas in the cylinder to other cylinders or directly fill the cylinders by the tanker.

(4) Do not dispose of the residual liquid in the steel cylinder by yourself. The residual liquid should be handled by the enterprise that has obtained the qualification of "Gas Business License".

(5) Cylinders shall not be placed or used upside down.

(6) It is forbidden to disassemble and install the angle valve of the cylinder, and it is forbidden to change the color and inspection mark of the cylinder without authorization.

(7) Flammable and explosive articles shall not be stacked in the bottle warehouse, and shall not be used for residence.

(8) It is forbidden to use open flame, steam, hot water and other heat sources to heat and smash LPG cylinders, and it is forbidden to use open flame to check for leaks.

(9) It is forbidden to use liquefied gas in public entertainment places and underground and semi-underground spaces.

(11) it is forbidden to mix dimethyl ether in liquefied petroleum gas.

Datong Municipal People's Government-Safety Requirements for the Use of Liquefied Petroleum Gas in Catering Services in Datong City