As we all know, the installation of drainage pipelines is the basis of our modern home improvement system. The installation of drainage pipelines is good and will bring many conveniences to our family life in the future. However, if installation is not good, it will not only be blocked and silted up in the future. Inconvenience caused to us, here we introduce: high-rise building drainage pipe installation and drainage pipe construction precautions.
High-rise building drainage pipe installation:
(1) There are a large number of water supply and drainage pipes in high-rise buildings installed in pipelines in pipe wells . There are living water supply pipes, fire-fighting water supply pipes, sewage drainage pipes, ventilation pipes, hot water pipes, return pipes, and intermediate water pipes. The riser of these pipes. The tube is often laid in a pipe well, and is supported by a bracket, a bracket, a pipe clamp, etc., vertically fixed in the pipe well, and each layer is connected to a branch pipe or a horizontal pipe. The installation of pipelines in pipe wells is generally performed from the bottom to the top. The elevations and directions of the branch pipes (fling ports) on the risers should be accurate to ensure the connection of the branch pipes. The installation of all kinds of pipelines is according to the first coarse and fine, the small diameter allows the large diameter, and the pressure pipes allow the order of the gravity pipes. Many high-rise buildings have a large number of layers and the workload of pipeline installation is large. To accelerate the construction progress, prefabrication and on-site assembly can be used. Before pipeline prefabrication, the actual installation dimensions must be measured on site and the pipeline processing drawing must be drawn. Then pre-fabrication. It is usually possible to install a model room on the standard floor first, and use this as a standard for piping prefabrication and installation.
(2) Installation of high-rise buildings in water supply systems usually requires the installation of pools, pumps, and pressure tanks . High-rise building water supply pipe General dry pipe, riser pipe diameter DN ≤ 100mm when galvanized steel pipe thread connection; DN> 1OOmm, seamless steel pipe flange connection can be used. The branch pipe can use water supply plastic pipe or copper pipe. When installing the riser. Each floor should have a pipe support. The installation is solid and reliable, preventing leakage due to sinking of pipes.
(c) Drainage system installed high-rise building drainage riser . The water flow is fast. Therefore, it is required that the pipeline be firmly installed to prevent accidents such as water leakage due to pipe displacement and sinking. 1. Drainage cast iron pipe installation. The drainage riser is located in the tube well and should be provided with a firm support and bracket. The weight of the upper pipeline of the pressure vessel is transmitted to the wall through the bracket and the bracket. Concrete support piers shall be provided at the bottom of the connection between the riser and the outlet pipe to prevent the riser from sinking. Drainage pipe interface should be selected according to design requirements. For over-the-shelf buildings or Earthquakes for quake for more than eight degrees. When the height of the drainage riser exceeds 50m, the flexible earthquake-resistant drainage cast iron pipe interface shall be selected. Its form can be found in the installation atlas. 2. Hard PVC drainage pipe installation. Unplasticized PVC plastic pipes are used in high-rise building drainage systems. The following technical problems should be solved:
(1) Pipe support. Due to the height of the riser, a firm fixed bracket and two sliding brackets should be provided for each floor.
(2) Standpipe energy dissipation. Due to the smooth inner wall of plastic. The water flow is fast. In order to reduce the impact of water flow in the riser and to protect the water seals of sanitary appliances, energy dissipation devices should be used.
(3) Selection of fittings. Generally, the pressure resistance of PVC pipe fittings is lower than that of pipes. Therefore, in the drainage system of high-rise buildings, it is advisable to use a glass pipe reinforced composite pipe fittings. For more information, please refer to the detailed description of the sinking and draining of the construction and drainage network of the Dragon.
Drainage pipeline construction plan should follow the following points:
1. According to the overall planning, the layout of roads and buildings, the elevation of terrain, and the destination of the contaminated rainwater, the principle of the shortest pipeline, the smallest depth of burial, and the principle of discharging as much as possible should be adopted.
2. Drainage pipelines should be laid along the road and the perimeter of the building in parallel to minimize the cross between each other and other pipelines.
3. The pipeline should be as little as possible on the sidewalk or grass below the road.
4. When laying drainage pipelines, the horizontal distance and vertical net distance between each other and other pipelines shall be based on the type of two pipelines, the depth of burial, the mutual influence of construction and maintenance, the size of the attached structures on the official road, and the relevant local regulations. determine.
5. At the turn of the drainage pipe and at the junction, the water flow angle should not be less than 90 degrees. When the pipe diameter is less than 300, and the drop head is greater than 0.3m, the angle can be unlimited.
Editor's summary: The installation of high-rise building drainage pipes and the construction of drainage pipes are mentioned here. I hope to help you. For more information, please pay attention to this site.
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