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通风管道的验收中出现不合格的原因?

来源:/添加时间:2018-06-19 15:04:18
通风管道是工业与民用建筑的通风与空调工程用金属或非金属管道,是为了使空气流通,降低有害气体浓度的一种市政基础设施。通风管道大部分都是由风管加工设备制成。但是由于各种各样的原因,可能导致加工出来的风管有问题。
Ventilation pipes are metal or non-metallic pipes for ventilation and air conditioning engineering in industrial and civil buildings. It is a municipal infrastructure for the purpose of making air circulation and reducing the concentration of harmful gases. Most of the ventilation ducts are made of wind pipe processing equipment. However, due to various reasons, it may lead to problems in the air pipes manufactured.
一、加工材料未达标
First, the processing material has not reached the standard
a表现:板材表面不平整,厚度不均匀,有明显的压痕、裂纹、砂眼、结疤和锈蚀等情况;风管平面下沉,侧面向外凸起,有明显的变形。
A performance: the surface of the plate is not smooth, the thickness is uneven, there are obvious indentation, crack, sand eye, scar and rust and so on; the wind pipe plane sink, the side protruding, there is obvious deformation.
b影响:运转时风管漏风,空调负荷增加,同时风寿命和性能被影响。
B effect: during operation, air leakage is increased, air conditioning load is increased, and wind life and performance are affected.
c原因:材料不合格,不能满足制作风管的需求。
济南厨房排烟管道
C reason: the material is not qualified, and can not meet the needs of making air duct.
d措施:在使用风管加工设备制作风管前,要先检查材料出厂合格证书和材料质量证明还有外观厚度等,保证材料是可用的。
D measures: before using the wind pipe processing equipment to make the wind pipe, we must first check the material certificate and material quality certificate and the appearance thickness, so as to ensure that the material is available.
二、风管翘角及弯头角度不准
Two, inaccurate angle of wind pipe and angle of elbow
a表现:矩形风管两相对平面、两端面不平行;折角不平直;对角线不相等;咬口不严。
A performance: the rectangular duct two is not parallel to the two sides of the plane, the corners are not straight, the diagonal lines are not equal, and the bite is not strict.
b影响:会使风管连接受力不均匀,安装后的风管不平直,法兰盘垫片不严密,系统漏风,造成空调负荷损失,并且缩短使用寿命。
B influence: the wind pipe connection will be uneven, the wind pipe after installation is not straight, the flange gasket is not tight, the system is leaking, causing the loss of air conditioning load, and shortening the service life.
c原因:板下料放样不准确;风管两两平行,相对面的板料长度和宽度不相等。
C reason: the blanking lofting is not accurate; the length and width of the 22 parallel pipes are not equal.
d措施:展开下料时,应对板料严格角方,对每片板料的长度、宽度以及检验对角线,使它们的偏差控制在允许范围内;下料后的板料,应将风管相对面的两片板料重合检验尺寸准确性。
D measures: when the blanking is unfolded, the sheet material should be strictly corner square, the length, width and diagonal line of each sheet can be checked to make their deviations within the allowable range. After the blanking, the size of the two sheets of the relative surface of the wind pipe should be rejoined to test the accuracy of the size.
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