1. The principle of ventilation of the exhaust fan
The process of exhausting the air from the exhaust fan will cause the indoor air pressure to drop, and the indoor air will become thinner, forming a negative pressure area, and the air will compensate for the difference in air pressure. into the room. In the practical application of industrial plants, the exhaust fans are usually installed on one side of the factory building, the air inlet is on the other side of the factory building, and the air flows from the air inlet to the exhaust fan to form convection blowing. During this process, the doors and windows near the exhaust fan are kept closed, forcing air to flow into the workshop through the doors and windows on the side of the air intake. The air flows into the workshop in an orderly manner from the air inlet, flows through the workshop, and is discharged from the workshop by the exhaust fan. The ventilation is thorough and efficient, and the ventilation rate can be as high as 99%. Through specific engineering design, the ventilation speed and wind speed are designed according to the needs, any high heat, harmful gas, dust and smoke can be quickly discharged from the workshop, and any poor ventilation problems can be completely solved at one time. Ventilation is achieved within seconds of turning on the fan.
Second, Cooling principle
The exhaust fan can quickly exhaust the hot indoor air, and cool the air on the other side of the outdoor. The air is sucked into the room, and the temperature is equal to the outside temperature, so that the temperature in the workshop will not rise. In the process of air flow, the body heat will be taken away, and the air flow will accelerate the evaporation of sweat and absorb the body heat, thus making the body feel cool and as cool as the natural wind.
Three, what should I do if the exhaust fan in the bathroom is too noisy
Position
1. Try as much as possible Closer to the air outlet, too far distance will increase the exhaust resistance and affect the exhaust effect.
2. Don’t get too close to the wet area (especially the shower head), the over-humid environment will affect the life.
3. Be closer to the toilet, because the biggest function of the exhaust fan is to discharge odors.
Cause Analysis
1. The ventilation fan is loose and the fan blades are loose.
2. The bearing bush is worn out for a long time, causing misalignment. Open it and see.
3. The sanitation of the bathroom must be done well, and the mess should be avoided. In this way, the bathroom has no smell at all, and the ventilation fan is generally not used only when taking a bath.
Solution
1. First of all, the exhaust fan must be installed firmly, not in an unstable place, which will greatly reduce the noise; Second, you should regularly lubricate the inside of the exhaust fan.
2. First check whether the ceiling is installed firmly. See if the ceiling and the exhaust fan have a relatively large resonance, and first make the connection between the exhaust fan and the ceiling more solid.
3. Reinforce the ceiling. If there is noise, it must be vibrating. Check where it is still loose. If necessary, you can place a high-density sponge sheet, and the noise should be smaller.
Declare: The above methods are derived from the program system index or shared by netizens. They are for your reference only and do not represent the research views of this website. sex and authority.
