濟南通風管道：風管安裝的質量檢驗

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　　風管安裝的質量檢驗

Quality inspection of air duct installation

　　一、風管安裝時應注意的問題

1、 Safety issues to pay attention to during the installation of air ducts

　　1 起吊時，嚴禁人員在被吊風管下方，風管上嚴禁站人。

When lifting, it is strictly prohibited for personnel to be under the suspended air duct, and standing on the air duct is strictly prohibited.

　　2 應檢查風管內、上表面有無重物，以防起吊時，墜物傷人。

2. Check for heavy objects inside and on the surface of the air duct to prevent injury from falling objects during lifting.

　　3 對于較長風管，起吊速度應同步進行，首尾呼應，防止由于一頭過高，中段風管法蘭受力大而造成風管變形。

For longer air ducts, the lifting speed should be synchronized and coordinated from head to tail to prevent deformation of the duct due to excessive force on the flange of the middle section due to one end being too high.

　　4 抬到支架上的風管應及時安裝，不能放置太久。

The air duct lifted onto the bracket should be installed in a timely manner and should not be left for too long.

　　5 對于暫時不安裝的孔洞不要提前打開；暫停施工時，應加蓋板，以防墜人墜物事故發生。

Do not open holes that are not temporarily installed in advance; When suspending construction, cover plates should be added to prevent accidents caused by falling people or objects.

　　使用梯子不得缺擋，不得墊高使用。

When using a ladder, do not miss the gear or elevate it.

　　使用梯子的上端要扎牢，下端采取防滑措施。

The upper end of the ladder should be securely fastened and anti slip measures should be taken at the lower end.

　　送風支管與總管采用直管形式連接時，

When the air supply branch pipe is connected to the main pipe in a straight pipe form,

　　插管接口處應設導流裝置。

A guiding device should be installed at the insertion interface.

　　二、風管安裝質量檢驗

2、 Quality inspection of air duct installation

　　風管安裝后，可用拉線或吊線的方法進行檢查。一般只要支吊架安裝得正確，風管接得平直，風管應能保持橫平豎直。風管安裝的允許偏差為水平度不大于3mm/m，總偏差不大于20mm。

After the installation of the air duct, it can be checked by pulling or hanging wires. Generally, as long as the supports and hangers are installed correctly and the air ducts are connected straight, the air ducts should be able to maintain horizontal and vertical straightness. The allowable deviation for the installation of air ducts is that the levelness shall not exceed 3mm/m, and the total deviation shall not exceed 20mm.

　　GB50243-2016《通風與空調工程施工質量驗收規范》要求：

GB50243-2016 "Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering" requires:

　　6.2.9 風管系統安裝完畢后，應按系統類別要求進行施工質量外觀檢驗。合格后，應進行風管系統的嚴密性檢驗，漏風量除應符合設計要求和本規范第4.2.1條的規定外，尚應符合下列規定：

After the installation of the air duct system, the construction quality and appearance inspection should be carried out according to the requirements of the system category. After passing the inspection, the tightness of the air duct system should be inspected. In addition to meeting the design requirements and the provisions of Article 4.2.1 of this specification, the air leakage should also comply with the following regulations:

　　1 當風管系統嚴密性檢驗出現不合格時，除應修復不合格的系統外，受檢方應申請復驗或復檢。

When the tightness inspection of the air duct system fails, in addition to repairing the unqualified system, the inspected party should apply for re inspection or re inspection.

　　2 凈化空調系統進行風管嚴密性檢驗時，N1級～N5級的系統按高壓系統風管的規定執行；N6級～N9級，且工作壓力小于等于1500Pa的，均按中壓系統風管的規定執行。

When conducting air duct tightness inspection on the 2 purification air conditioning system, N1 to N5 level systems shall comply with the regulations for high-pressure system air ducts; For grades N6 to N9, and with a working pressure of less than or equal to 1500Pa, the regulations for medium pressure system air ducts shall be followed.

　　檢查數量：微壓系統，按工藝質量要求實行全數觀察檢驗；低壓系統，按Ⅱ方案實行抽樣檢驗；中壓系統，按Ⅰ方案實行抽樣檢驗；高壓系統，全數檢驗。

Inspection quantity: Micro pressure system, implement full observation inspection according to process quality requirements; Low voltage system, implement sampling inspection according to scheme II; Medium voltage system, implement sampling inspection according to Plan I; High voltage system, complete inspection.

　　檢查方法：除微壓系統外，嚴密性測試按本規范附錄C的規定執行。

Inspection method: Except for the micro pressure system, the tightness test shall be carried out in accordance with the provisions of Appendix C of this specification.

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