除塵管道布置可按照哪些方法操作？

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除塵管道的布置除應(yīng)遵守一般通風(fēng)管道的布置原則外，還有一些特殊要求：

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

(1)除塵系統(tǒng)的風(fēng)管宜采用圓形鋼制風(fēng)管，其接頭和接縫應(yīng)嚴(yán)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)風(fēng)管宜垂直或傾斜安裝，傾斜安裝時與水平面的夾角應(yīng)大于45°，小坡度或水平敷設(shè)的管段應(yīng)盡量縮短，并應(yīng)采取防止積塵的措施。

(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)支管宜從主管的上面或側(cè)面插入，三通管的夾角，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)在容易積灰的異形管件附近，應(yīng)設(shè)置密閉清掃孔。

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

(5)除塵風(fēng)管轉(zhuǎn)彎處的曲率半徑R＝1·5-3.0D，如曲率半徑不允許大時，要在彎頭內(nèi)設(shè)導(dǎo)流葉片。

(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.

風(fēng)管選型

Selection of air duct

（1）常用斷面形狀：

(1) Common section shapes:

矩形：易于和建筑、裝修配合；局部構(gòu)件制作容易。

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

——常用于空調(diào)系統(tǒng)

——Commonly used in air conditioning systems

圓形：阻力小；省材料、強(qiáng)度高；管道制作容易。

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

——常用于通風(fēng)系統(tǒng)及空調(diào)高速風(fēng)管

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

其他形狀：根據(jù)實際需要。

Other shapes: according to actual needs.

管道定型化：

Pipe finalization:

1.《通風(fēng)管道統(tǒng)一規(guī)格》中，圓管的直徑指外徑，矩形斷面尺寸是外邊長，即尺寸中都包括了相應(yīng)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.為了滿足阻力平衡的需要，除塵風(fēng)管和氣密性風(fēng)管的管徑規(guī)格較多。

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.管道的斷面尺寸(直徑和邊長)采用只R20系列，即管道斷面尺寸是以公比數(shù)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