1. Catering enterprises should reasonably choose the air volume model of the oil fume purifier according to their own cuisines and the number of stoves.

Each catering enterprise has its own cuisines. Some cuisines are light, and there is not much oil when cooking, and the fire is small. The oil fume produced is not much and the taste is not big. You can match the oil fume purifier with low air volume according to the number of stoves. Some cuisines have a strong taste, and they have a lot of oil, a big fire, and a strong smell of lampblack. It is necessary to match the lampblack purifier with a larger air volume according to the number of stoves.

two: don't be cheap and ignore the performance of the product.

At present, there are hundreds to tens of thousands of oil fume purifiers on the market. Most high-quality products need high-quality materials and technology to support them, so that the products will be durable and have high purification efficiency. The research and development cost alone is more than several hundred yuan, and the material cost is more than a few hundred yuan. It is recommended not to buy products with too low price.

3: Try to choose an oil fume purifier with high purification efficiency

In recent years, the national standards for oil fume emission have become higher and higher. At the beginning, the country required the purification efficiency of oil fume purifier to be above 85%, but now some urban areas require the purification efficiency of oil fume purifier to be above 91% before reaching the standard. Therefore, catering enterprises try their best to choose a fume purifier with high purification efficiency, which not only has a better experience, but also can easily cope with increasingly strict standards.

The general installation method and steps of Langxia oil fume purifier are as follows:

Stove (stove)-smoke collection hood-ventilation duct (> 1.5m)-reducing pipe (small to large)-lampblack purifier-reducing pipe (large to small)-ventilation pipe (> 1.5m)-soft connection-fan-soft connection-exhaust outlet

Schematic diagram of indoor installation of low-altitude exhaust

Schematic diagram of outdoor installation of low-altitude exhaust (high, low)

Precautions for installation of Lancashire oil fume purifier:

1. There are different models of Lancashire oil fume purifier, which are treated by different models of purifiers.

2. The wind speed in the pipeline should be designed at 11-12m/S, and the radius of the elbow centerline >; =1.5D。

3. To ensure the horizontal installation of the fume purifier, the purifier must be reliably grounded (the purifier has three outgoing lines, the red line and the green line are connected to 221V/AC, and the yellow-green line is grounded)

4. The included angle between the hypotenuse and the axis of the reducer (from small to large) < =71 degrees, the included angle between the hypotenuse and the axis of the variable diameter pipe (larger to smaller) < =15 degrees.

5. The fan needs to be equipped with a shock absorber, and a soft connection should be installed when the air ducts at the air inlet and outlet are connected. A 1-2m straight pipe section should be reserved at the inlet of the fan to reduce the additional resistance of the fan, and the fan should be installed behind the oil fume purifier to ensure the purification efficiency of the oil fume purifier.

6. When the fume purifier is installed outdoors, rain-proof and sun-shading equipment should be installed.