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济南www.878365.com节能管道安装应该什么标准?
Time:2019-04-03 14:56:57       来源:/      

一、管道制弯应契合下列规则:

1. Pipeline bending shall conform to the following rules:
1、弯管宜采用冷弯,弯管的最小弯曲半径不应小于管道外径的3倍;采用冲压弯头时,弯曲半径不就小于管道外径的1倍。
1. Cold bending should be adopted for elbows, and the minimum bending radius of elbows should not be less than 3 times of the outside diameter of pipelines; when stamping elbows are used, the bending radius should not be less than 1 times of the outside diameter of pipelines.
2、管道弯制后的最大外径与最小外径之差不应超越管径的8%。
2. The difference between the maximum diameter and the minimum diameter after bending should not exceed 8% of the pipe diameter.
3、管道弯曲部位不宜有皱纹、起皮等缺陷。
3. The bending part of the pipeline should not have wrinkles, peeling and other defects.
4、管道螺纹加工应契合设计技术文件的规则。螺纹加工完成后,外表应无裂纹、凹陷、毛刺等缺陷。有细微机械损伤或断面不完好的螺纹,全长累计不应大于1/3圈,螺纹牙高减少不应大于其高度的1/5。
4. Pipeline thread processing should conform to the rules of design technical documents. After thread processing, there should be no cracks, depressions, burrs and other defects on the surface. For threads with micro-mechanical damage or imperfect cross-section, the total length should not be greater than 1/3 turns, and the reduction of thread height should not be greater than 1/5 of its height.
二、紧缩空气碳素钢管道的敷设应契合下列规则:
2. The laying of compressed air carbon steel pipes shall conform to the following rules:
1、管道走向应契合设计技术文件请求,程度管道平直度允许偏向为2/1000,且不大于30mm。立管垂直度允许偏向为3/1000,且不大于20mm,按设计技术文件规则的坐标位置和标高尺寸装置管道,坐标位置允许偏向为15mm,标高允许偏向为±15mm。
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1. Pipeline alignment should meet the requirements of design technical documents. The degree of pipeline flatness is allowed to deviate to 2/1000 and not more than 30mm. The vertical degree of riser is allowed to deviate to 3/1000 and not more than 20 mm. According to the coordinate position and elevation dimension of the design technical document, the coordinate position is allowed to deviate to 15 mm and the elevation allowed to deviate to (+15 mm).
2、管道外壁与相邻管道、管件边缘的间隔不应小于10mm,同排管道上的法兰或活接头应互相错开不小于10mm,穿墙管道应加套管,其接头位置与前面的间隔宜大于800mm。
2. The distance between the outer wall of the pipeline and the edges of adjacent pipelines and fittings should not be less than 10 mm. The flanges or loose joints on the same row of pipelines should be staggered not less than 10 mm. The pipe through the wall should be bushed. The distance between the joint position and the front should be more than 800 mm.
3、紧缩空气碳素钢管道的坡度应契合技术文件规则,忽视定时,倾斜坡度就为12.5/1000~25/1000
3. The slope of compacted air carbon steel pipe should conform to the rules of technical documents. If the timing is neglected, the slope will be 12.5/1000~25/1000.
4、法兰衔接应管与管道同心,衔接螺栓应自在穿入,两法兰对接面应平行,平行度允许偏向应不大于法兰直径的1.5/1000
4. The connecting pipe and pipeline of flange should be concentric, the connecting bolt should penetrate freely, the interface of two flanges should be parallel, and the allowable deviation of parallelism should not be greater than 1.5/1000 of flange diameter.
5、管支架和管卡装置应契合下列规则:
5. Pipe brackets and pipe clamp devices shall conform to the following rules:
①支架装置位置正确,固定结实,管道与管卡接触严密,管道支架和管卡处不应有管道的焊缝。
(1) The bracket device is positioned correctly, fixed firmly, the pipe is in close contact with the pipe clamp, and there should be no pipe weld at the pipe bracket and pipe clamp.
②管支架间距直管局部应契合规则,弯曲局部应在起弯点左近增设支架。
(2) The spacing of pipe brackets should be in accordance with the rules at the straight pipe part, and brackets should be added at the bending part near the left of the starting point.
③管支架之间不应直接接触。
(3) There should be no direct contact between stents.
6、软管装置应契合下列规则:
6. Hose fittings shall conform to the following rules:
①外径大于30mm的软管,最小弯曲半径不小于管外径的7倍
The minimum bending radius is not less than 7 times of the outer diameter of a tube with an outer diameter greater than 30 mm.
②软管不得有扭曲变形。
Hose shall not be distorted.
7、管道涂漆厚度、遍数应契合设计技术请求。涂层应平均,着色分歧,无漏涂、流淌、气泡等缺陷。管道吹扫紧缩空气碳素钢管道必需按工艺停止敲打、吹扫。吹扫后管道内壁应契合设计技术文件规则,未规则时应无铁锈、氧化铁皮及其它异物。
7. Pipeline paint thickness and number of times shall meet the design technical requirements. The coating should be uniform, with different coloring and no defects such as leakage, flow and bubbles. It is necessary to stop beating and purging in accordance with the process for purging compact air carbon steel pipes. After cleaning, the inner wall of the pipeline shall conform to the rules of the design technical documents, and there shall be no rust, iron oxide scale and other foreign bodies in case of irregularities.                          

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