Key points of buried FRP pipeline construction

2020-07-31 16:35:18 0

A, pipeline quality inspection and storage and transportation 1, pipeline quality inspection pipeline quality inspection, the purpose is to ensure the quality of the pipeline after construction and installation, such as pipeline damage, clear the cause of damage and responsibility. The first inspection is carried out when unloading goods at the site to check whether there is any damage during transportation; The second inspection shall be conducted before installation to check whether there is any damage during storage or hoisting. 2. Handling and storage of pipelines 2.1 The loading of pipeline is generally the responsibility of the manufacturer, and the unloading of pipeline is the responsibility of the user or carrier. Users must abide by the operation procedures specified in this article to avoid the pipe falling or hitting, especially the pipe end. 2.2 this article is put forward considering the safety of workers' operation and the reliability of machines and tools. 2.3 use rope to run through both ends to load and unload pipes, which may break the pipes and damage the pipe ends. 2.4 It is forbidden to hoist pipelines with steel wire ropes or chains to prevent damage to the surface layer of pipelines. 2.5 in long-distance transportation of pipelines, in order to reduce freight, small pipes can be sleeved in large pipes for transportation. Packaged pipelines have certain requirements for safe transportation during packaging, and their packaging and loading and unloading vehicles shall be carried out according to regulations. Dismantling the packaging and taking out the small-diameter pipeline from the large-diameter pipeline requires forklift operation. The small pipeline can be hung up gently with a plunger and then moved out, taking care not to touch other pipelines. 2.6 in order to avoid bending deformation caused by long-term placement of pipes or rolling caused by unstable placement, this article makes special provisions. For the storage process, some countries put forward the maximum allowable deflection value: when the stiffness is SN5000, the maximum deflection value is 2.0% (vertical diameter); The maximum deflection value is 1.5% (vertical diameter) when the stiffness is SN1000. This procedure only requires that pipes with DN≥1400mm shall not be stacked. Second, the pipeline transportation 1. In order to avoid damaging the pipeline during transportation, the pipeline should be packed before transportation. Pipes with a diameter of 600mm and smaller can be packaged and shipped as a unit. 2. This article means that attention should be paid to safety during short-distance transportation on site and pipeline placement on trench.

A, pipeline quality inspection and storage and transportation 1, pipeline quality inspection pipeline quality inspection, the purpose is to ensure the quality of the pipeline after construction and installation, such as pipeline damage, clear the cause of damage and responsibility. The first inspection is carried out when unloading goods at the site to check whether there is any damage during transportation; The second inspection shall be conducted before installation to check whether there is any damage during storage or hoisting. 2. Handling and storage of pipelines 2.1 The loading of pipeline is generally the responsibility of the manufacturer, and the unloading of pipeline is the responsibility of the user or carrier. Users must abide by the operation procedures specified in this article to avoid the pipe falling or hitting, especially the pipe end. 2.2 this article is put forward considering the safety of workers' operation and the reliability of machines and tools. 2.3 use rope to run through both ends to load and unload pipes, which may break the pipes and damage the pipe ends. 2.4 It is forbidden to hoist pipelines with steel wire ropes or chains to prevent damage to the surface layer of pipelines. 2.5 in long-distance transportation of pipelines, in order to reduce freight, small pipes can be sleeved in large pipes for transportation. Packaged pipelines have certain requirements for safe transportation during packaging, and their packaging and loading and unloading vehicles shall be carried out according to regulations. Dismantling the packaging and taking out the small-diameter pipeline from the large-diameter pipeline requires forklift operation. The small pipeline can be hung up gently with a plunger and then moved out, taking care not to touch other pipelines. 2.6 in order to avoid bending deformation caused by long-term placement of pipes or rolling caused by unstable placement, this article makes special provisions. For the storage process, some countries put forward the maximum allowable deflection value: when the stiffness is SN5000, the maximum deflection value is 2.0% (vertical diameter); The maximum deflection value is 1.5% (vertical diameter) when the stiffness is SN1000. This procedure only requires that pipes with DN≥1400mm shall not be stacked. Second, the pipeline transportation 1. In order to avoid damaging the pipeline during transportation, the pipeline should be packed before transportation. Pipes with a diameter of 600mm and smaller can be packaged and shipped as a unit. 2. This article means that attention should be paid to safety during short-distance transportation on site and pipeline placement on trench.


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