1. Preparation before installation 1. Site survey and planning - Topographic Assessment: Check whether the site is flat and whether the foundation bearing capacity meets the standards (usually ≥100kPa), and avoid soft soil, accumulated water or slopes. - Layout Design: Plan the placement location of the box room according to needs, reserve the channel, door and window opening direction and water and electricity pipeline path. - Compliance Inspection: Confirm whether it complies with local building codes, such as fire protection distance (usually ≥ 6 meters), earthquake resistance requirements, etc. 2. Foundation Construction - Concrete foundation: Suitable for long-term use scenarios, poured concrete slabs with a thickness of ≥20cm, and embedded anchor bolts (spacing ≤2 meters). - Steel frame foundation: In temporary or movable scenarios, H-shaped steel or channel steel is welded into a frame, with a leveling error of ≤3mm/m. - Drainage treatment: A drainage ditches (width ≥30cm) are set up around it to prevent water accumulation and erosion. 3. Materials and Equipment Preparation - Check the box size (standard 6m×3m×2.8m or customized specifications) and structural integrity (check welds, rust). - Prepare hoisting equipment (such as cranes above 25 tons), connectors (high-strength bolts above M16), waterproof glue, insulation materials, etc.
2. Installation steps 1. Case hoisting - Use a lifting belt or special fixture to fix the four corners of the box, and keep the lifting angle horizontal (inclination ≤2°). - Place the box in sequence according to the design order, and the installation error of the first floor is controlled within ±5mm. 2. Box Fixation - Bottom fixation: Connect the box to the foundation through embedded bolts or welding, and the torque must comply with the specifications (such as the torque of M16 bolts is 220N·m). - Multi-layer structure: The upper box and the lower layer are connected through corner parts, and are twisted or welded using ISO standard, and the verticality deviation is ≤H/1000 (H is the total height). 3. Box connection - The cutting opening needs to be reinforced (such as adding a C-shaped steel frame), the side plates are fixed with bolts between adjacent boxes, and the gaps are filled with foam glue and covered with waterproof tape. - Multi-layer structures require the installation of columns (such as 100×100mm square steel) to enhance overall stability. 4. Petroleum installation - Pipe embedding: Use waterproof casings when the water and electricity lines pass through the walls. The wires need flame retardant models (such as ZR-BV). It is recommended to use PPR hot melt pipes for water pipes. - Equipment installation: The grounding resistance of the distribution box is ≤4Ω, and the solar system needs to match the inverter power. 5. Doors and Windows and Ventilation - Install broken bridge aluminum doors and windows, apply neutral silicone sealant to the gap, and open the fan-configured screen window. - The roof is equipped with a non-powered hood or the side walls are ventilated louvers (area ≥ 5% of the room area). 6. Interior decoration - Fireproof gypsum board is covered with walls (thickness ≥12mm), and PVC floor or laminate wood floor is laid on the floor. - The ceiling is made of light steel keel + mineral wool board, and the interlayer is filled with rock wool (density ≥80kg/m³) and is insulated and sound-insulated.
III. Acceptance and commissioning 1. Structural inspection: Use a laser level to detect the overall level (Error ≤10mm/10m), and there is no abnormal shaking of the shaking box. 2. Confinement test: Observe leakage at the joints on rainy days, or use smoke to test the ventilation system. 3. Hydropower test: Water pressure test (0.6MPa hold pressure for 30 minutes without leakage), circuit insulation resistance ≥0.5MΩ. 4. File Archive: Save foundation construction records, material certificates, and hidden project acceptance form.
4. Things to note 1. Safety Specifications: People are not allowed to stand within the hoisting radius, and seat belts are buckled when working at high altitudes, and fire extinguishers are equipped during welding. 2. Environmental adaptability: XPS insulation board (thickness ≥50mm) is installed at the bottom of the box in cold areas, and hot-dip galvanized steel (plating layer ≥80μm) is used in coastal areas. 3. Compliance Procedures: Temporary buildings need to apply for project planning permits (usually 2 years of validity period), and fire extinguishers must be equipped with fire inspection (at least 2 pieces of 4kg of dry powder per 50㎡). 4. Maintenance cycle: Check the anticorrosion coating every year (replace epoxy zinc-rich primer + polyurethane topcoat in the damaged areas), and the bolts are tightened every two years.