除尘管道布置可按照哪些方法操作？

发布人：http://www.sftfgd.com   发布时间：2021-09-12 11:04:17

除尘管道的布置除应遵守一般通风管道的布置原则外，还有一些特殊要求：

In addition to the layout principles of general ventilation pipes, the layout of dust removal pipes also has some special requirements:

(1)除尘系统的风管宜采用圆形钢制风管，其接头和接缝应严密。

(1) The air duct of the dust removal system should be circular steel air duct, and its joints and joints should be tight.

(2)风管宜垂直或倾斜安装，倾斜安装时与水平面的夹角应大于45°，小坡度或水平敷设的管段应尽量缩短，并应采取防止积尘的措施。

(2) The air duct should be installed vertically or obliquely. During inclined installation, the included angle with the horizontal plane should be greater than 45 °, the pipe section laid on a small slope or horizontally should be shortened as far as possible, and measures to prevent dust accumulation should be taken.

(3)支管宜从主管的上面或侧面插入，三通管的夹角，宜采用15 °-45 °。

(3) The branch pipe should be inserted from the top or side of the main pipe, and the included angle of the tee pipe should be 15 ° - 45 °.

(4)在容易积灰的异形管件附近，应设置密闭清扫孔。

(4) Closed cleaning holes shall be set near special-shaped pipe fittings that are easy to accumulate dust.

(5)除尘风管转弯处的曲率半径R＝1·5-3.0D，如曲率半径不允许大时，要在弯头内设导流叶片。

(5) The radius of curvature at the turning of dust removal air duct r = 1.5-3.0d. If the radius of curvature is not allowed to be large, guide vanes shall be set in the elbow.

风管选型

Selection of air duct

（1）常用断面形状：

(1) Common section shapes:

矩形：易于和建筑、装修配合；局部构件制作容易。

Rectangle: easy to cooperate with architecture and decoration; Local components are easy to make.

——常用于空调系统

——Commonly used in air conditioning systems

圆形：阻力小；省材料、强度高；管道制作容易。

Circular: small resistance; Material saving and high strength; The pipe is easy to make.

——常用于通风系统及空调高速风管

——It is commonly used in ventilation system and high-speed air duct of air conditioner

其他形状：根据实际需要。

Other shapes: according to actual needs.

管道定型化：

Pipe finalization:

1.《通风管道统一规格》中，圆管的直径指外径，矩形断面尺寸是外边长，即尺寸中都包括了相应的材料厚度。

1. In the unified specification for ventilation pipes, the diameter of circular pipe refers to the outer diameter, and the size of rectangular section refers to the outer length, that is, the size includes the corresponding material thickness.

2.为了满足阻力平衡的需要，除尘风管和气密性风管的管径规格较多。

2. In order to meet the needs of resistance balance, there are many pipe diameter specifications of dust removal air duct and air tightness air duct.

3.管道的断面尺寸(直径和边长)采用只R20系列，即管道断面尺寸是以公比数汐

3. The section size (diameter and side length) of the pipeline adopts only R20 series, that is, the section size of the pipeline is in common ratio