400-823-0102
400-823-0102
All room air solutions, depending on your home
calculate te
According to the national standard GB/T18883-2002, the per capita demand for fresh air shall not be less than 30m ³/ h。
When selecting the air exchange rate of civil buildings, 0.5-1 times/hour can be selected from the perspective of economy.
In order to ensure good fresh air effect, fresh air demand Q should be calculated from two aspects of "per capita demand" and "ventilation frequency" respectively,
The appropriate fresh air fan shall be selected with a larger value.
According to per capita demand
Q1 (fresh air demand)=N (indoor number of people) × A (per capita demand)
According to the number of air changes
Q2 (fresh air demand)=S (actual use area) × H (indoor clear floor height) × F (Ventilation rate/hour)
AIR SUPPLY
01
Supply and return air
The air supply is completed by the air outlet on the floor, and the return air is completed by the air outlet on the ceiling
02
Construction method
Flat pipeline is adopted, buried under the ground floor, arranged at will, and the direction is flexible
03
Influence of storey height
A height of at least 30 cm shall be reserved at the ceiling of the host machine, and the thickness of the flat air supply pipe on the ground shall be at least 30 mm
04
Ventilation effect
Generally, it is sent down and discharged up, with complete displacement ventilation, and the effect is good
05
Air volume loss rate
The air duct has high air resistance, so it requires high air pressure outside the machine
06
Expense cost
higher
01
Supply and return air
Fresh air system and indoor air pollution, are located in the ceiling vent to complete
02
Construction method
Pipes may be through beams, and must be through the wall, the general use of Upper Row, the pipeline is easy to cross
03
Influence of storey height
At least 30 cm height should be reserved at the ceiling of the main engine. All rooms have piping arrangement
04
Ventilation effect
When the speed of air supply and exhaust is too high, it will cause noise, and when the speed of air supply and exhaust is too low, it will cause short circuit
05
Air volume loss rate
Less than ground air supply
06
Expense cost
Lower
