Fire water supply and hydrant system
1. The clear distance between the outer wall of the high-level fire water tank and the wall of the building structure or other pool walls should meet the needs of construction or assembly. The clear distance should not be less than 0.7m for the side without pipes; The clear distance between the side of the pipe installed should not be less than 1.0m, and the width of the passage between the outer wall of the pipe and the wall of the building body should not be less than 0.6m. The clearance between the top surface of the water tank with a manhole and the bottom of the building body plate above it should not be less than 0.8m.2. The inlet pipe shall be connected above the overflow water level. The height of the lowest point of the inlet pipe orifice above the overflow edge shall be equal to the diameter of the inlet pipe, but the minimum shall not be less than 100mm and the maximum shall not be more than 150mm.3. The submergence depth of the suction port of the fire pump shall meet the requirements for the safe operation of the fire pump at the lowest water level. The submergence depth of the suction pipe bell mouth under the lowest effective water level of the fire pool shall be determined according to the flow rate and hydraulic conditions of the suction pipe bell mouth, but shall not be less than 600mm. When the cyclone preventer is used, the submergence depth shall not be less than 200mm.4. The installation height of the wall fire pump adapter should be 0.70m from the ground; The clear distance from the door, window, hole and hole on the wall shall not be less than 2.0m, and shall not be installed under the glass curtain wall; The underground fire pump adapter shall be installed so that the distance between the water inlet and the bottom of the well cover is not more than 0.4m and not less than the radius of the well cover.5. The protection radius of the municipal fire hydrant shall not exceed 150 m, the spacing shall not exceed 120 m, the distance between the municipal fire hydrant and the roadside shall not be less than 0.5 m, nor more than 2.0 m, and the distance between the municipal fire hydrant and the building exterior wall or the edge of the exterior wall shall not be less than 5.0 m.6. For civil air defense works, underground works and other buildings, outdoor fire hydrants should be set near the entrance and exit, and the distance from the entrance and exit should not be less than 5m and not more than 40m.The outdoor fire hydrants in the parking lot should be set along the periphery of the parking lot, and the distance from the nearest row of cars should not be less than 7m, and the distance from the gas station or oil depot should not be less than 15m.7. The height of indoor fire hydrant mouth from the ground is 1.1m.Automatic sprinkler system
1. The end water test device and water test valve shall be marked, with a height of 1.5m from the ground, and measures not used by others shall be taken.2. The alarm valve group of the automatic spraying system should be 1.2m above the indoor ground; The distance between two sides and the wall shall not be less than 0.5m; The distance between the front and the wall shall not be less than 1.2m; The distance between protruding parts of alarm valve group shall not be less than 0.5m.3. The installation position of fire fighting pneumatic water supply equipment and the direction of inlet pipe and outlet pipe shall meet the design requirements; The outlet pipe shall be equipped with a check valve. During installation, a maintenance passage shall be set around the outlet pipe, and its width shall not be less than 0.7m. The distance from the top of the fire pneumatic water supply equipment to the floor or the bottom of the beam shall not be less than 0.6m.4. The signal valve shall be installed on the pipe in front of the water flow indicator, and the distance between the signal valve and the water flow indicator shall not be less than 300mm.5. The installation height of the water mist partition control valve should be 1.2m~1.6m, and the distance between the operating surface and the wall or other equipment should not be less than 0.8m, which should meet the operating requirements.Gas fire extinguishing system
1. The installation height of the manual and automatic transfer switch of the gas fire extinguishing system is 1.5m from the center point to the ground (floor).2. The maximum protection height of the sprinkler in the gas fire extinguishing system should not be greater than 6.5m, and the minimum protection height should not be less than 0.3m; When the installation height of the sprinkler is less than 1.5 m, the protection radius should not be greater than 4.5 m, and when the installation height of the sprinkler is not less than 1.5 m, the protection radius should not be greater than 7.5 m.3. The nozzle should be installed close to the top surface of the protection area, and the maximum distance from the top surface should not be more than 0.5m.4. The height difference of fire extinguishing agent storage containers of the same specification should not exceed 20mm, and the height difference of drive gas storage containers of the same specification should not exceed 10mm.5. The operating handle of the selector valve shall be installed on one side of the operating surface. When the installation height exceeds 1.7m, measures shall be taken to facilitate operation.Dry powder extinguishing system and foam extinguishing system
1. For the dry powder system, select the valve operating handle at the side of the operating surface. When the height exceeds 1.7m, take measures to facilitate operation.
2. The installation height of the control valve set on the foam mixture riser is generally 1.1~1.5m, and obvious opening and closing signs need to be set; When the installation height of the control valve is greater than 1.8m, the operating platform or operating stool shall be set.
3. The return pipe with control valve set on the outlet pipe of the fire pump of the foam fire extinguishing system shall meet the design requirements, and the installation height of the control valve is generally 0.6~1.2m.
4. The height of the pressure relief port of the totally submerged dry powder fire extinguishing system is greater than 2/3 of the clear height of the protection area.
1. The portable fire extinguisher should be set in the fire extinguisher box or on the hook and bracket, and its top should not be more than 1.5m from the ground; The height from the bottom to the ground should not be less than 0.08m.2. The distance between the top of the portable fire extinguisher and the ground shall be ≤ 1.50m, and the distance between the bottom and the ground shall be ≥ 0.08m.3. The installation height of the hook and bracket shall meet the requirements that the distance between the top of the portable fire extinguisher and the ground shall not be more than 1.5m, and the distance between the bottom and the ground shall not be less than 0.08m.Automatic fire alarm system
1. The operating distance in front of the equipment panel in the fire control room shall not be less than 1.5m when arranged in a single row; In case of double row arrangement, it shall not be less than 2m. On the side where the personnel on duty often work, the distance from the equipment panel to the wall shall not be less than 3m. The maintenance distance behind the equipment face plate should not be less than 1m. When the arrangement length of the equipment panel is greater than 4m, the two ends shall be provided with a channel with a width of not less than 1m.2. When the fire alarm controller and fire linkage controller are installed on the wall, the height of the main display screen should be 1.5m~1.8m, the side close to the door axis should be no less than 0.5m from the wall, and the front operating distance should be no less than 1.2m.3. When the point detector is set on the ceiling of the inner walkway with the width less than 3m, it should be arranged in the middle. The installation spacing of temperature fire detectors shall not exceed 10m; The installation spacing of smoke fire detectors shall not exceed 15m; The distance from the detector to the end wall shall not be greater than 1/2 of the installation distance of the detector.4. The horizontal distance from the point detector to the wall and beam edge shall not be less than 0.5m.5. There should be no obstructions within 0.5m around the point detector.6. When the room is separated by bookshelves, equipment or partitions, and the distance from the top to the ceiling or beam is less than 5% of the room's clear height, each separated part shall be installed with at least one point detector.7. The horizontal distance from the point detector to the air supply outlet of the air conditioner shall not be less than 1.5m, and it should be installed close to the air return outlet. The horizontal distance from the detector to the orifice of the porous air supply ceiling shall not be less than 0.5m.8. Manual fire alarm button shall be set at obvious and easy to operate position. When wall mounted installation is adopted, the height from the bottom edge to the ground should be 1.3m-1.5m, and there should be obvious signs.9. The area display shall be set at the entrance and exit and other obvious and easy to operate positions. When wall mounted installation is adopted, the height from the bottom edge to the ground should be 1.3m-1.5m.10. When the fire alarm is wall mounted, the height from the bottom edge to the ground shall be more than 2.2m.11. The bottom edge of wall mounted loudspeaker shall be more than 2.2m from the ground.12. When the fire dedicated telephone jack is installed on the wall, its bottom edge should be 1.3m-1.5m from the ground.1. The openable external window shall be convenient for direct opening. The openable external window set at a high place that is not convenient for direct opening shall be equipped with a manual opening device at a height of 1.3m~1.5m from the ground.2. The air inlet of the forced draft fan shall not be set on the same side as the air outlet of the smoke exhaust fan. When it is really difficult, the air inlet of the forced draft fan and the air outlet of the smoke exhaust fan shall be arranged separately, and when they are arranged vertically, the air inlet of the forced draft fan shall be set below the smoke exhaust outlet, and the minimum vertical distance between the two edges shall not be less than 6.0m; In horizontal layout, the minimum horizontal distance between the two edges shall not be less than 20.0m.3. The natural smoke exhaust windows (openings) should be set at the top of the smoke exhaust area or the external wall. The natural smoke exhaust windows (openings) should be evenly distributed, and the length of each group should not be greater than 3.0m; The horizontal distance between the nearest edges of natural smoke exhaust windows (openings) on both sides of the firewall shall not be less than 2.0m.4. The gap between the movable smoke curtain wall and the building structure (column or wall) surface shall not be greater than 60mm. For the continuous smoke curtain wall composed of two or more smoke curtain walls, there shall be no gap between each piece, and the overlapping width shall not be less than 100mm; The manual operation button of the movable smoke screen vertical wall shall be fixed at a place 1.3m~1.5m away from the floor for easy operation and obvious visibility.5. The distance from the fan housing to the wall or other equipment shall not be less than 600mm.Copyright notice: Except for original works, the articles, pictures, videos and music used in this platform belong to the original obligee. Due to objective reasons, there may be improper use, such as failure to contact the original author in time for some articles or some of the quoted content of articles, or the author's name and original source are incorrectly marked, which does not maliciously infringe the relevant rights and interests of the original obligee, Please understand and contact us for timely treatment to jointly maintain a good network creation environment.
