What is the order of on-site construction of the tower?
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Do you have to wait until all the pipelines are installed before installing the tower internals? And some filler?
In our distillation tower, each tray section is installed first, and then the top condenser is hoisted section by section from top to bottom. The sieve plate tower is installed from the tower base section by section from bottom to top, while the packed tower is installed with the tower body and filled with filler layer by layer. As for the pipes, they are installed afterwards and then pressure tested for leaks.
After the hydrostatic test of the empty shell is completed, internal accessories and pipelines can be installed.
The packed tower needs to be installed from bottom to top after the supports and distributors are installed in each section, and then the packing is installed, section by section upwards.
Cleaning-pressing-installing screen plate-tower sections-tower body is installed from bottom to top.
After the tower body is installed, when installing the pipeline, be sure to use a blind gasket to seal the flange opening connected to the tower. Slag can easily be brought into the tower during pipeline installation and pressure.
First check whether the foundation of the tower meets the requirements, then install and align the base of the tower, and then install the tower sections. Large internal parts such as packing and packing should be installed and leveled first, and then the tower sections should be installed section by section. After the entire tower is installed, it should be calibrated as a whole before installing pipes, etc.
There is SH3542-2007 static equipment technical regulations in the forum, which can be implemented according to this.
After the hydraulic pressure test is completed (monitoring at the pot inspection site), all accessories in the tower can be installed. Installing on the ground saves labor costs.
What everyone said makes sense. There are different sequences according to different situations. The main consideration is the safety and feasibility (cost) of construction. From the outside: Tower-attached pipelines and ladder platforms that can be completed on the ground can best be installed if on-site hoisting conditions permit. If conditions do not permit, installation of tower-attached pipelines and ladder platforms must wait until they are in place and aligned. As for the internal parts, it is necessary to consider the pressure test and cleaning of the equipment and the ease of installation of the internal parts. Generally speaking, as an on-site installation engineer, you must have vertical (time) foresight and horizontal (inter-professional) coordination.
8# sunzm Where can I download SH3542-2007?