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The difference between positive pressure and negative pressure of bag filter is that bag filter system can be divided into negative pressure filter system and positive pressure bag filter according to the relative position of the filter and fan in the process. Two types of bag filter What's different about the system.
负压除尘系统在负压除尘系统中，除尘器设置在通风机(负压段或抽吸段)的前面。 The difference between the positive pressure and the negative pressure of the bag filter is the negative pressure filter system of the bag filter. In the negative pressure filter system, the filter is located in front of the fan (negative pressure section or suction section).
①Because the vacuum cleaner is set in front of the ventilator, the gas flowing through the ventilator has been dusted, the dust concentration is low, the abrasion of the ventilator is greatly reduced, and the service life is long. Generally, a negative pressure dust removal system is used to handle the dust gas with high initial concentration.
(2) The vacuum cleaner and pipes are located in the negative pressure section of the fan, which is easy to suck air and leak air. The air leakage rate of the negative pressure dust removal system is 5%-10%, which increases the air volume of the fan and increases energy consumption.
③ The design of the negative pressure dust removal system should take measures to minimize the air leakage of the dust collector and the pipeline to ensure the good operation of the dust collector.
正压除尘系统在正压除尘系统中，除尘器设置在通风机后面(正压段或压出段)。 The difference between the positive pressure and negative pressure of the bag filter is the positive pressure and dust removal system of the bag filter . Its characteristics are.
(1) Since the dust-containing gas flowing through the fan is not purified by the dust collector, the fan impeller and the casing are susceptible to dust wear. Therefore, the positive pressure dust removal system is only suitable for situations where the concentration of gas dust is less than 3g / m3, the dust is easy to grind, and the dust particle size is small.
② The dust collector is located in the positive pressure section of the fan. There is no need to consider the extra air leakage rate of the vacuum cleaner, and the mechanical and electrical consumption of the ventilation is low.
外壳结构简单. 例如，正压袋式除尘器的外壳结构，只要是防雨的，就不需要密封；设备制造，安装方便，成本低。 ③ The structure of the bag dust collector is simple. For example, the shell structure of the positive pressure bag dust collector does not need to be sealed as long as it is rainproof; the equipment is easy to manufacture, and the cost is low.
④ In the positive pressure dust removal system of the bag type dust collector, the purified gas is directly discharged into the atmosphere by the dust collector, without the need for a chimney; the vacuum cleaner has a certain noise reduction function, and the silencer of the fan outlet side can be omitted. Initial investment in dust removal systems.
提供的布袋除尘器正压负压区别，相关推荐： 如何选择合适的袋式除尘器? The above is the difference between positive pressure and negative pressure of bag dust collectors provided by Yuchen dust removal equipment manufacturers . Related recommendations: How to choose the right bag dust collector?