When sending air to a tank, should a blower or an exhaust fan be used?

Are blowers and exhaust fans different? When placed at the front, it is called a blower; when placed at the back, it is called an exhaust fan. Positive pressure at the blower outlet. Behind the induced draft is negative pressure. Well, it should be like that=-=

What was said upstairs is correct; a blower should be used.

Neither the blower nor the exhaust fan can be chosen. This is because both blowers and exhaust fans are classified by their purpose, resulting in slight differences in structure. For example, blowers are commonly used in the blower systems of boilers and gas generators. Air is a common inlet material with few impurities; the main consideration is the outlet pressure, and the sealing requirements at the casing and shaft seals are not very strict. To improve efficiency, very narrow forward- or backward-curved impeller designs are also often used (the description may not be highly technical). Induction fans are commonly used in exhaust gas systems. There may be a certain amount of dust in the gas; when designing the impeller structure, efficiency must be considered, but also the impact of dust accumulation on dynamic balance. There are certain requirements for sealing, but they are not extremely strict. To transport gas, a gas compressor (also known as a gas booster) is required, which must be manufactured by qualified fan manufacturers. The distance between the end faces on both sides of the impeller is usually very small, and the blades inside are also curved surfaces with a certain curvature. The housing is also different from ordinary drums and exhaust fans. During operation, the impeller does not tend to accumulate tar (and if the tar content is high, it usually causes blockages in the casing). Tight sealing is required at the connections of the casing and at the shaft seals; in many cases, nitrogen sealing is necessary. I wonder if the semi-water gas produced by LZ is generated intermittently. A system like this seems rather tricky. The issue of negative pressure during operation can be resolved as long as the positive pressure at the inlet of the compressor remains within a certain range, and an appropriate model is selected based on the flow rate (it is best to use automatic control with a pressure sensor signal and an inverter). However, during the conversion to intermittent gas generation, it is necessary to frequently close the inlet and outlet valves of the fan or start and stop the fan, which significantly reduces its reliability. It is recommended to determine the resistance of your heat exchanger and select an appropriate model; it’s best to avoid using a pressurizer. (A fixed-bed furnace with intermittent gas generation, which has a relatively high outlet pressure; I have seen examples where gas is fed directly into the gas holder without using a compressor.)

We added it before; we chose a blower

What was said on the 4th floor is good; I agree with the suggestion from the 4th floor

I think a blower is better; exhaust fans tend to cause backflow...