通風(fēng)管道與空調(diào)工程常見(jiàn)質(zhì)量通病及處理！

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風(fēng)管板材選用不符合要求

The selection of air duct panels does not meet the requirements

1.現(xiàn)象

1. Phenomena

風(fēng)管板材厚度、表面平整度、外形尺寸等不符合要求，板材有銹斑。

The thickness, surface flatness, and overall dimensions of the air duct board do not meet the requirements, and there are rust spots on the board.

2.原因分析

2. Cause analysis

選用板材時(shí)不按設(shè)計(jì)要求和施工規(guī)范進(jìn)行。

Not following the design requirements and construction specifications when selecting boards.

3.防治措施

3. Prevention and control measures

(1)應(yīng)按設(shè)計(jì)要求根據(jù)不同的風(fēng)管管徑選用板材厚度。

(1) The thickness of the plate should be selected according to the design requirements for different air duct diameters.

(2)所使用的風(fēng)管板材必須具有合格證明書(shū)或質(zhì)量鑒定文件。

(2) The air duct sheets used must have a certificate of conformity or quality identification documents.

(3)當(dāng)選用的風(fēng)管板材在設(shè)計(jì)圖紙上未標(biāo)明時(shí)，應(yīng)按照施工規(guī)范實(shí)施。

(3) When the selected air duct board is not indicated on the design drawings, it should be implemented in accordance with the construction specifications.

濟(jì)南通風(fēng)管道咬口制作不平整

Uneven manufacturing of Jinan ventilation pipeline bite

1.現(xiàn)象

1. Phenomena

風(fēng)管咬口拼接不平整，咬口縫不緊密。

The splicing of the air duct bite is uneven, and the bite seam is not tight.

2.原因分析

2. Cause analysis

風(fēng)管板材下料找方直角不準(zhǔn)確，咬口寬度受力不均勻，風(fēng)管制作工作平臺(tái)不平整，風(fēng)管咬口線(xiàn)出現(xiàn)彎曲、裂紋。

The cutting of the air duct board is not accurately aligned with the right angle, the force on the bite width is uneven, the working platform for air duct production is uneven, and the bite line of the air duct is bent or cracked.

3.防治措施

3. Prevention and control measures

(1)風(fēng)管板材下料應(yīng)經(jīng)過(guò)校正后進(jìn)行。

(1) The cutting of air duct panels should be carried out after correction.

(2)明確各邊的咬口形式，咬口線(xiàn)應(yīng)平直整齊，工作平臺(tái)平整、牢固，便于操作。

(2) Clearly define the bite form on each side, the bite line should be straight and neat, and the working platform should be flat and firm, making it easy to operate.

(3)采用機(jī)械咬口加工風(fēng)管板材的品種和厚度應(yīng)符合使用要求。

(3) The variety and thickness of the air duct board processed by mechanical biting should meet the usage requirements.

圓風(fēng)管不同心，管徑變小

The circular air duct is not concentric and the pipe diameter becomes smaller

1.現(xiàn)象

1. Phenomena

風(fēng)管不垂直，兩端口平面不平行，管徑變小。

The air duct is not vertical, the two port planes are not parallel, and the pipe diameter decreases.

2.原因分析

2. Cause analysis

制作同徑圓風(fēng)管時(shí)下料找方直角不準(zhǔn)確，制作異徑圓風(fēng)管時(shí)，兩端口周長(zhǎng)采用劃線(xiàn)法，直徑變小，其咬口寬度不相等。

When making circular air ducts with the same diameter, the cutting and right angles are not accurate. When making circular air ducts with different diameters, the circumference of the two ports is marked off, resulting in a smaller diameter and unequal bite width.

3.防治措施

3. Prevention and control measures

(1)下料時(shí)應(yīng)用經(jīng)過(guò)校正的方尺找方。

(1) When cutting, a calibrated square ruler should be used to find the square.

(2)圓風(fēng)管周長(zhǎng)應(yīng)用計(jì)算求出，其計(jì)算公式為：圓周長(zhǎng)＝π×直徑＋咬口留量。

(2) The circumference of a circular air duct should be calculated using the formula: circumference=π × Diameter+bite allowance.

(3)應(yīng)嚴(yán)格保證咬口寬度一致。

(3) Strictly ensure that the width of the bite is consistent.

矩形風(fēng)管對(duì)角線(xiàn)不相等

Unequal diagonal of rectangular duct

1.現(xiàn)象

1. Phenomena

風(fēng)管表面不平，兩相鄰表面互不垂直，兩相對(duì)表面互不平行，兩端口平面不平行。

The surface of the air duct is uneven, two adjacent surfaces are not perpendicular to each other, two opposite surfaces are not parallel to each other, and the planes of the two ports are not parallel.

2.原因分析

2. Cause analysis

下料找方不準(zhǔn)確，風(fēng)管兩相對(duì)面的長(zhǎng)度及寬度不相等；咬口受力不均勻。

Inaccurate cutting and square finding, resulting in unequal length and width of the two opposite faces of the air duct; Uneven force on the bite.

3.防治措施

3. Prevention and control measures

(1)板材找方劃線(xiàn)后，須核查每片長(zhǎng)度、寬度及對(duì)角線(xiàn)的尺寸，對(duì)超過(guò)偏差范圍的尺寸應(yīng)以更正。

(1) After the board is square and marked, the length, width, and diagonal dimensions of each piece must be checked. Any dimensions that exceed the deviation range should be corrected.

(2)下料后，風(fēng)管相對(duì)面的兩片材料，其尺寸必須校對(duì)準(zhǔn)確。

(2) After cutting, the dimensions of the two pieces of material on the opposite side of the air duct must be accurately calibrated.

(3)操作咬口時(shí)，應(yīng)保證寬度一致，閉合咬口時(shí)可先固定兩端及部位，然后均勻閉合咬口。

(3) When operating the bite, the width should be consistent. When closing the bite, the two ends and the center can be fixed first, and then the bite can be evenly closed.

(4)用法蘭與風(fēng)管翻邊寬度來(lái)調(diào)整風(fēng)管兩端口平行度及垂直度。

(4) Use the flange and duct flange width to adjust the parallelism and verticality of the two ports of the duct.

通風(fēng)管道與空調(diào)工程常見(jiàn)質(zhì)量通病及處理就從以上內(nèi)容中講解完畢了，希望能夠給您幫助，更多事項(xiàng)就來(lái)我們網(wǎng)站http://hwzxw.net留言咨詢(xún)吧！

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