如何降低镀锌铁皮风管的漏光点

发布人：http://www.sftfgd.com   发布时间：2023-05-15 13:49:51

济南铁皮风管加工厂家提醒，规范中规定，低压系统风管10米接缝不大于2个漏光点且平均每100米接缝不大于16个漏光点为合格。通过检查大楼已施工完成的11-14层风管接缝，发现漏光点超标，存在100米接缝大于 16个漏光点。

Jinan iron sheet air duct processing manufacturer reminds that according to the regulations, it is qualified if the 10 meter joint of the low-pressure system air duct is not more than 2 leakage points, and the average joint is not more than 16 leakage points per 100 meters. By inspecting the joints of the air ducts on floors 11-14 of the completed building, it was found that the leakage points exceeded the standard, with more than 16 leakage points at 100 meter joints.

控制好接缝漏光点是保证风管系统工程质量的前提条件。可以减少返修，降低施工成本。风管的漏光点多，漏风量增大，从而增加了能耗，浪费了资源,增加了工程使用期间的运行成本。

Controlling joint light leakage points is a prerequisite for ensuring the quality of air duct system engineering. It can reduce rework and construction costs. There are many light leakage points in the air duct, which increases the amount of air leakage, thereby increasing energy consumption, wasting resources, and increasing the operating costs during the use of the project.

风管大边长≤300mm时，外边长偏差≤2mm，两对角线长度之差≤3mm；风管大边长＞300mm时，外边长偏差≤3mm，两对角线长度之差≤3mm。

When the large side length of the air duct is ≤ 300mm, the deviation of the outer side length is ≤ 2mm, and the difference between the lengths of the two diagonals is ≤ 3mm; When the large side length of the air duct is greater than 300mm, the deviation of the outer side length is ≤ 3mm, and the difference between the lengths of the two diagonals is ≤ 3mm.

措施

measures

1

one

法兰下料存在偏差

Deviation in flange cutting

改进法兰原有下料方法

Improve the original flange cutting method

允许偏差为0~2mm

The allowable deviation is 0-2mm

1、采用机械下料

1. Using mechanical cutting

2、制定操作的要点

2. Key points for developing operations

3、加强现场监督

3. Strengthen on-site supervision

2

two

法兰焊接方法不当

Improper flange welding method

规范焊接方法

Standardize welding methods

1、法兰平面度的允许偏差为2 mm

1. The allowable deviation for flange flatness is 2 mm

2、法兰对角线的允许偏差为3mm

2. The allowable deviation of flange diagonal is 3mm

1、制作法兰焊接模具

1. Making flange welding molds

2、制定焊接要点

2. Develop welding points

3、增加检查频率、数量

3. Increase inspection frequency and quantity

3

three

密封条安装不规范

Sealing strip installation is not standardized

规范密封条施工方法

Standardize the construction method of sealing strips

保证密封条接口严密性

Ensure the tightness of the sealing strip interface

1、制定密封条施工方法

1. Develop construction methods for sealing strips

2、严格控制施工程序

2. Strictly control construction procedures

4

four

风管咬口未压实

The bite of the air duct is not compacted

严格按照要求施工

Strictly follow the requirements for construction

风管咬逢无缝隙，紧密连接

The air duct is seamless and tightly connected

1、制定标准咬口形式

1. Develop standard bite forms

2、加强现场检查

2. Strengthen on-site inspections

改进法兰原有的下料方法：

Improve the original flange cutting method:

1、设计简单工具进行法兰下料。法兰下料的简单工具是利用一根已经调直的10#槽钢，在端头处焊接一根L50*50*5的角钢。

1. Design simple tools for flange cutting. The simple tool for flange cutting is to use a straightened 10 # channel steel and weld an L50 * 50 * 5 angle steel at the end.

2、在10#槽钢上量取需下料尺寸，与机械切割台调平，与切割片调垂直，固定在切割机械上。然后进行批次下料，保证下料尺寸正确统一(见下图1)。

2. Measure the required cutting size on the 10 # channel steel, level it with the mechanical cutting table, align it vertically with the cutting blade, and fix it on the cutting machine. Then proceed with batch cutting to ensure correct and uniform cutting dimensions (see Figure 1).

解决法兰焊接方法不当的问题：

Solving the problem of improper flange welding methods:

1、制作法兰焊接模具。利用钢板制作焊接平台，把4~6个长50㎜的L50*5的角钢焊接在钢板平台上，尺寸为所加工法兰的尺寸，校准模具尺寸。

1. Make flange welding molds. Using steel plates to make a welding platform, weld 4-6 L50 * 5 angle steels with a length of 50 mm onto the steel plate platform, with the dimensions of the processed flanges, and calibrate the mold dimensions.

2、焊接法兰时，必须先行点焊法兰对角线，检查法兰的对角线的偏差。焊接采用对角线焊接方法，保证法兰的平整度，成品的焊接质量。

2. When welding flanges, it is necessary to first spot weld the diagonal of the flange and check the deviation of the diagonal of the flange. The welding adopts diagonal welding method to ensure the flatness of the flange and the welding quality of the finished product.

规范密封条安装施工方法：

Standardize the installation and construction methods of sealing strips:

1、制定密封条接缝施工方案，以便进行密封条的合理安装）。2、加强现场检查次数，随时进行抽检，确保密封条安装质量得到有效控制。更多相关内容就来我们网站http://www.sftfgd.com咨询！

1. Develop a construction plan for sealing strip joints to facilitate the reasonable installation of sealing strips. 2. Strengthen the frequency of on-site inspections and conduct spot checks at any time to ensure effective control of the installation quality of sealing strips. For more related content, come to our website http://www.sftfgd.com consulting service