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Anonymous users2024-02-08Let's put it simply, if the buried pipeline is a heating pipe, it must be added to the expansion joint, the length is basically about 50-100 to install one, and the expansion of the expansion joint is multiplied by the temperature difference and the length of the pipe.
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Anonymous users2024-02-07One. Directly buried corrugated expansion joint, also known as direct buried corrugated expander, is an indispensable ideal component for direct buried pipeline compensation. Expansion joints must be installed for directly buried pipelines.
Two. Key precautions for pipeline installation:
1. Pipeline segmentation No matter how complex a pipeline is, it can be divided into several independent pipe sections with relatively simple shapes by setting fixed supports, such as straight pipe sections, L-shaped pipe sections, Z-shaped pipe sections, etc.
2. Determine the amount of compensation According to the coefficient of thermal expansion of the pipe material in the working temperature range and the length of the pipe section, calculate the working displacement between the two fixed supports in the sub-section.
3 Select the compensator according to the designed pipeline compensation method and the working temperature and pressure of the pipeline. so that it can accommodate the calculated displacement of the pipe segment.
4 design fixed support when the heating pipe is heated and elongated, a certain thrust will be applied to the fixed support, and the size of the thrust should be calculated during the design to determine the section of the fixed support.
Three. Calculation of the force on the pipe support (fixed pier):
1.Internal thrust (blind plate force): f=100·p·a=100
2.Axial elastic force: fx=kx· (f·x)=282 (1 2 32)=4512(n)
3.Transverse elastic force: fy=ky·y=1528
4.Resultant bending moment: m=my+m=
Four. Calculation of the amount of thermal deformation of the pipe:
1.Calculation formula: x=a·l· t
x Pipe expansion.
a is the coefficient of linear expansion, taken.
l Compensation pipeline (the distance between the fixed supports of the required compensation pipeline) length.
t is the temperature difference (medium temperature - ambient temperature at installation).
2.Calculate the expansion amount of the pipeline and select the corresponding expansion joint (corrugated compensator).
Five. Purchase Notes:
When purchasing, it should be detailed to provide the manufacturer with detailed data about the pipeline, and the manufacturer should design and produce it to ensure the service life or quality. The compensator is a special pipeline equipment, and it is necessary to choose a qualified manufacturer or well-known brand product when purchasing to avoid accidents. Recommended manufacturers:
Hebei Weiye corrugated pipe manufacturing ****, Baishun brand corrugated expansion joint, sleeve compensator, won the "China market well-known brand" and "Hebei Province famous trademark".
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Anonymous users2024-02-06Kiss, <>
We are glad to answer for you, the underground direct buried thermal pipeline, the answer should be based on the medium temperature, working pressure, pipe material, pipe diameter, fixed pier position, turning position and arm length on both sides and other main parameters of the calculation plus or not expansion joints. Extended dataExpansion joint expansion tensor calculation formula: x=al* tx pipeline expansion a is the linear expansion coefficient, take the compensation pipeline (the distance required to compensate the pipeline fixed support) length t is the temperature difference (medium temperature, ambient temperature during installation) with clear potato body calculation and installation precautions, consult:
Hebei Weiye corrugated pipe manufacturing **** I hope mine can help you! <>
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