Pre-installation Preparation
Before installation, visit the installation site to assess the site conditions and environment, verify the installation location, reserved space, and the positions of supports and embedded parts, preparing tools and materials in advance for the next stage of construction.
Equipment Inspection
① Check the quantity of equipment.
② Inspect the equipment for damage; report any damage immediately and take appropriate measures.
③ Invite a representative from the construction unit to inspect the equipment on-site to reassure the user.
④ Collect and store all accompanying accessories, instruction manuals, and other materials for unified distribution and delivery to the user during installation.
Hot Water Storage Tank Fabrication
The hot water storage tank is fabricated on-site. On the existing civil engineering foundation, rust-proofed #10 channel steel is fixed in a grid pattern. Insulation is then installed at the bottom of the tank (first a layer of rubber-plastic board, then a layer of rock wool), and the base plate is laid on the channel steel.
The bottom plate of the water tank is welded using a lap joint on one side. The tank body is welded using V-shaped butt welds. When the tank body is assembled from multiple steel plates, cross welds should be avoided. The distance between two longitudinal welds should be no less than 100mm. E4303 welding rods are used.
After the water tank is manufactured, a full-water permeability test should be performed. Fill the tank with water, and after 2-3 hours, gently tap along both sides of the weld seam approximately 150mm away with a hammer (generally 0.5-1.5 kg). There should be no leakage. If leakage is found, the affected area must be removed, re-welded, and the test repeated.
