空调通风管道计算规则与方法心得

发布人：http://www.sftfgd.com   发布时间：2023-06-21 16:34:29

针对空调通风管道中不锈钢风管的工程量计算规则与方法一些技巧心得，济南通风管道厂小编给大家整理分享。

The editor of Jinan Ventilation Pipeline Factory has compiled and shared some tips and experiences on the calculation rules and methods of engineering quantities for stainless steel air ducts in air conditioning ventilation ducts.

1、薄钢板风管

1. Thin steel plate air duct

（1）风管按不同规格以展开面积计算，管上检查孔、测定孔、送风口、吸风口等所占面积不扣除。

(1) The air duct is calculated based on its expanded area according to different specifications, and the area occupied by inspection holes, measuring holes, air supply outlets, suction outlets, etc. on the duct is not deducted.

（2）计算风管长度时一律以图注线长度为准，包括弯头、三通、变径管、天圆地方等管件的长度，但不得包括通风部件（如风阀、风口等）所在位置的长度。风管直径和周长按图注尺寸展开。但咬口风管的接口及翻边量不得计算在展开面积内。

(2) When calculating the length of the air duct, the center line length in the drawing shall be used as the standard, including the length of pipes such as elbows, tees, variable diameter pipes, and circular areas, but it shall not include the length of the location of ventilation components (such as air valves, air vents, etc.). The diameter and perimeter of the air duct shall be expanded according to the dimensions indicated in the drawing. However, the interface and flange amount of the biting air duct shall not be calculated within the developed area.

（3）风管导流叶片按叶片的面积计算。

(3) The guide vanes of the air duct are calculated based on the area of the blades.

（4）风管附件（除软性接头按计算外），检查孔、测定孔等按不同类型、规格分别以个为单位计算。

(4) Air duct accessories (excluding flexible joints calculated in square meters), inspection holes, measuring holes, etc. are calculated in units of different types and specifications.

2、不锈钢风管及铝板风管

2. Stainless steel air duct and aluminum plate air duct

风管的计算规则同薄钢板风管，部件按设计成品重量计算。

The calculation rules for air ducts are the same as for thin steel plate air ducts, and the components are calculated based on the weight of the designed finished product.

3、塑料风管及部件

3. Plastic air ducts and components

（1）风管按图注不同规格以展开面积计算，检查孔、测定孔、送风口、吸风口等所占面积不扣除。

(1) The air duct is calculated based on the expanded area according to different specifications indicated in the drawing. The area occupied by inspection holes, measuring holes, air supply outlets, suction outlets, etc. is not deducted.

（2）计算风管长度时，一律以图注线长度为准，包括弯头、三通、变径管、天圆地方等管件的长度，但不得包括通风部件（如风阀、风口等）所在位置的长度，风管直径和周长以图注尺寸展开。

(2) When calculating the length of air ducts, the length of the centerline indicated in the drawing shall prevail, including the length of fittings such as elbows, tees, variable diameter pipes, and circular areas, but shall not include the length of the location of ventilation components (such as air valves, air vents, etc.). The diameter and circumference of air ducts shall be expanded based on the dimensions indicated in the drawing.

（3）标准部件和非标准部件均按成品的重量计算。

(3) Both standard and non-standard components are calculated based on the weight of the finished product.

导流叶片计算：

Calculation of guide vanes:

导流叶片的作用：是将从空气调节主机压出通过交换的冷气，顺着风管从风口排除，达到调节室内空气的目的。当冷气通过风管弯头处时，如果不对其进行导流，势必产生涡流影响冷气传导！因此风管弯头处必须安装导流叶片！往往有一些年轻筒子们忽视导流叶片计算，要么就过估很不准确。小编提供列表计算如下：

The function of the guide vane is to press out the exchanged cold air from the air conditioning host and exhaust it from the air outlet along the air duct, achieving the purpose of regulating indoor air. When cold air passes through the bend of the air duct, if it is not guided, eddy currents will inevitably affect the conduction of cold air! Therefore, guide vanes must be installed at the elbow of the air duct! Often, some young tube workers overlook the calculation of guide vanes, or overestimate and make inaccurate predictions. The list provided by the editor is calculated as follows:

风管导流叶片长边确定片数表：

Table for determining the number of blades on the long side of the air duct guide vanes:

1、根据风管长边规格尺寸选择相对应导流叶片的片数。

1. Select the corresponding number of guide vanes based on the specifications and dimensions of the long side of the air duct.

2、根据风管短边规格尺寸选择相对应导流叶片单片面积数×根据长边尺寸已选定的导流叶片片数=该规格的风管导流叶片总面积。

2. Select the corresponding number of single guide vane areas based on the specifications and dimensions of the short side of the air duct × The number of selected guide vanes based on the size of the long side=the total area of the guide vanes in the duct of that specification.

验收规范中规定当平面宽度大于或等于500mm时都应设置导流叶片，那么以上两种情况都应计算导流叶片的工程量。

The acceptance specification stipulates that guide vanes should be installed when the plane width is greater than or equal to 500mm, and the engineering quantity of guide vanes should be calculated for both cases.

小编给大家整理分享到这里！如果有需要可以电话咨询我们http://www.sftfgd.com哦！

The editor will organize and share it with everyone here! If there is a need, you can consult us by phone http://www.sftfgd.com Oh!