1.設備運行時受到振動將影響設備正常工作，所以設備和風機的風管連接時必須采用軟連接；

1. when the equipment is running, vibration will affect the normal operation of the equipment, so the connection between the equipment and the fan pipe must be a soft connection;

2.風機的出口好保留一段≥1.5D的直管，以減少風機的附加阻力；

2 of the outlet of the fan is best kept straight for a period of not less than 1.5D, in order to reduce the additional resistance of fan;

3.為保證設備的凈化效率，各風管的接駁處及法蘭位需采取防漏風措施；

3., in order to ensure the purification efficiency of the equipment, the air duct connection and flange position need to take anti leakage measures;

4.為保證設備的凈化效率，設備應工作在負風壓狀態(tài)，即風機必須裝在設備的后面，管道復雜時應在前面吸油煙罩加裝引風機；

4., in order to ensure the purification efficiency of the equipment, the equipment should work in the state of negative wind pressure, that is, fans must be installed in the back of the equipment. When the pipeline is complex, the fan shall be equipped with a draft fan in front of the hood;

5.當多臺設備并聯(lián)使用，由統(tǒng)一的抽風機抽風的時候，也必須保證分配給各臺設備處理風量的比例接近他們額定處理風量的比例。

5., when multiple units are used in parallel, the ventilation rate should be guaranteed to be equal to the proportion of the rated air handling rate.

6.為保證設備的凈化效率，與設備出入風口連接的變徑風管要盡量平順夾角≤30度，變徑風管前后必須安裝長度比管徑大2.5倍以上的直管；

6 in order to ensure the purification efficiency of the equipment, to less than 30 degrees angle as smoothly as possible and reducing equipment and outlet pipe connected with the wind, reducing wind pipe must be installed before and after more than 2.5 times larger than the diameter of the length of the straight pipe;

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