1, the water transport gas (smoke) Hood: water transport gas (smoke) hood design principle is to form a water curtain cycle, and after soot collision, to achieve the purpose of soot purification. The key to influence the effectiveness of the water transport (gas) hood is to form a continuous water screen, but only to form intermittent water droplets or small water column, so the use effect is very poor.
2, the advantages of using the water collection gas (smoke) cover is to remove part of the soot in the gas collection hood, reduce the handling load of soot purification equipment, and improve the purification effect of the system. But if the exhaust gas collector (smoke) cover of the smoke gap is narrow, easy to cause smoke exhaust system is not smooth.
The design of /3 and gas collecting hood has important influence on smoke exhaust system. The design of the gas collecting hood is unreasonable, and it is easy to cause the whole smoke exhaust system to be impeded. There are some factors causing the smoke exhaust system to be unblocked:
1) the gap between the oil plate and the water collection gas (smoke) cover is too small, this situation is more;
2) the opening of the smoke collecting hood in the smoke hood is too small, so that the integral smoke exhaust is not unobstructed;
3) the opening distribution is unreasonable or the opening does not increase with the distance between the main pipe and the main pipe, thus causing partial smoke exhaust is not smooth.
4 、 simple air hood without oil baffle and air supply equipment is suitable for all kinds of flexible and flexible place, easy to process and install, and the price is cheap。 But because there is no air supply equipment, the effect of collecting air is relatively poor, it is easy to make the oil smoke whirl in front of the kitchen staff, and easy to cause oil droplets scattered。
5。 The gas collecting hood with oil baffle and air supply device can better collect the smoke produced by cooking process, and the oil drops are not scattered。 As long as the air supply volume is reasonable, the air quality of the working face of the kitchen operator is good。 But the installation requirements are higher and the investment is larger。
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