1. The groundwater pump room and equipment room are equipped with a mechanical exhaust system, and the number of air changes is 5-6 times\x0d\2. The underground garage is equipped with a mechanical exhaust system and a smoke evacuation system, and the number of air changes is 6 times\x0d\3. Kitchen exhaust volume and ventilation time: Chinese kitchen, 40 to 60 times; Western cuisine, 30 to 40 times; cooking in the staff restaurant, 25 to 35 times. \x0d\4. Basements, semi-basements (except for liquefied petroleum gas) or sealed above-ground kitchens using gas ranges must be equipped with an independent mechanical air supply and exhaust system . Ventilation volume: in normal operation, the number of air changes is not. less than 6 times; during accidental ventilation, it is not less than 12 times when it does not work, not less than 3times \x0d\ 5. The air supply volume of the underground garage should be between 80% and 90% of the exhaust volume\x0d\6. The oil storage room of the diesel generator room should be equipped with mechanical ventilation, and the air volume should be greater than or equal to 5 times \x0d\7. The ventilation volume of the boiler room, direct heating machine room and auxiliary rooms (an accidental explosion-proof exhaust fan is used on the first floor, the normal ventilation volume of the oil boiler room and direct fuel); the heated engine room should be greater than or equal to 3 times; the accidental ventilation volume should be greater than or equal to 6 times; the normal ventilation volume of the gas boiler room and gas boiler machine room should be 6 times or more. , and the accidental ventilation volume should be greater than or equal to 12 times. In semi-buried or semi-basement, theftventilation rate of the boiler room and direct fire engine room must be greater than or equal to 6 times. the accidental ventilation volume should be greater than or equal to 6 times. The ventilation volume should be greater than or equal to 12 times. In the basement or basement, the ventilation volume of the direct fire engine room of the boiler room must be greater than or equal. 12 times. The ventilation volume of the oil depot should be greater than or equal to 6 times. The ventilation volume of the oil pump room should be greater than or equal to 12 times. The ventilation height is generally 4 meters. The ventilation volume between underground daily fuel tanks should be greater than or equal to 3 times. A continuous exhaust system must be installed in the gas pressure regulation and metering room. The ventilation volume should be greater than or equal to 3 times the ventilation volume. accidents must be greater orequal to 12 times. \x0d\8. The number of air changes in the laundry room: 20-30 times for production premises, when using local ventilation installations, 5 times for complete evacuation and 2-3 times for additional air. The number of air changes for auxiliary rooms is 15 times\. x0d\9. Bathroom ventilation: 10-15 times in public toilets; 5-10 times in residential bathrooms; for air-conditioned hotel bathrooms, the volume of exhaust air should be 80% to 90% of the room's fresh air volume; . The smokehouse should be equipped with a mechanical exhaust, and the exhaust volume should be 10 to 15 times\x0d\11. The mechanical ventilation air volume of the elevator machine room should be 5-10 times \x0d\12. The ventilation volume of the underground warehouse is 6 times \x0d\ 13. The ventilation volume of the changing rooms 5 times \x0d\ 14. The ventilation volume of the gUnderground bicycle storage is 60m3/h \x0d\15. The number of ventilations and air changes in the substation and distribution room: 10 times in the substation room and 10 times in the power distribution room. The temperature of the exhaust air should be below 40 degrees.
1. Air changes in the oil storage room of the diesel generator room is ≧5 times/h.
2. The number of air changes in the substation room is 5-8 times/h, and the number of air changes in the power distribution room is 3-4 times/h.
3. The number of air changes in the refrigeration machine room is 4-6 times/h.
4. The number of air changes in the oil boiler room and in the fuel direct fire engine room is ≧ 3 times/h, and the number of air changes in accidental ventilation is ≧ 6 times/h.
5. The number of air changes in the heatersgas ries and direct-heated gas machine rooms is ≧6 times/h, and the number of air changes in accidental ventilation is ≧12 times/h.
6. The ventilation volume of the oil depot should be ≥6 air changes/h; the ventilation volume of the oil pump room should be ≥12 air changes/h when calculating the air changes of both; , the height of the room can generally be 4 m;
7. The ventilation volume between underground daily fuel tanks should be ≥3 hours/h.
8. The gas pressure regulating and metering room should be equipped with a continuous exhaust system and the ventilation volume should be ≥ 3 air changes/h, the accidental ventilation volume should be ≥ 12 air changes 'air/hr; .
9. The laundry room can be estimated based on the following air change times: The air change rate for production rooms is 20 to 30 times/h. Where there are local ventilation installations, the overall extract air rate. is 5 times/h. The ventilation frequency is 2 to 3 times/h; the ventilation frequency of auxiliary rooms is 15 times/h. Living spaces must comply with relevant specifications.
10. Public toilets should be ventilated 10 to 15 times/hour; residential bathrooms and boiling water rooms should be ventilated 5 to 10 times/hour; For air-conditioned hotel bathrooms, the exhaust air volume should be based on the fresh air volume in the room 80%~90%.
11. The smokehouse should be equipped with a mechanical exhaust and the exhaust volume should be selected based on 10-15 air changes/h.
12. The elevator machine room can use mechanical ventilation or refrigeration (with its own cold source air conditioner) to cool in summer. The volume of air used for ventilationand the cooling can be determined by the air change method. , which is generally 5 to 15 times/h.
13. The ventilation of the darkroom should adopt mechanical exhaust and natural air intake ventilation methods, and the exhaust volume should be ≥5 air changes/h. The air outlet should be located near the pool. The air inlet should use blackout blinds and the wind speed through the blinds should be <2 m/s.
14. The number of air changes in underground storage rooms and bicycle garages is 2 to 4 times/h.
15. Underground garage: Install a mechanical exhaust system. The exhaust system is adjusted according to the fire protection zone. The exhaust volume is 4 times/h (based on a floor height of 3.0 meters). Use low noise fans and no noise reduction measures.
16. The underground equipment roome is equipped with a mechanical exhaust system: 5 times/h in the water pump room, 8 to 10 times/h in the substation and 4 times/h. h in the low electrical machine room