The first pilot project of high-quality industrial space and the first specialized park for "specialized, refined, distinctive and innovative" small and medium-sized enterprises in Shenzhen, as well as a benchmark for advanced manufacturing parks and a model of "industrial buildings" in the city, covers an area of nearly 110,000 square meters and has a total planned construction area of approximately 180,000 square meters. The park consists of a research and development office center, six industrial production buildings, employee apartments and a commercial support center. The Bao'an Industrial Zone has formed a high-tech industrial area integrating electronic information, new energy, new materials and biomedicine. There are many high-tech enterprises around the park, such as BYD, Wuzhou Dragon New Energy Vehicles, Clou Electronics, Chuangyi Solar Energy and Tongzhou Electronics.
Fire-rated doors in the Shenzhen Baolong Little Giant Enterprises Industrial Park (specializing in precision manufacturing and innovation) technical overview,
① Application Scenarios & Strategic Positioning
Fire-rated doors are deployed to address high-risk industrial processes and ensure compartmentalization in this advanced manufacturing hub:
High-Risk Production Zones:
Class-A steel doors (≥1.50h EI) isolate battery R&D labs and microelectronics cleanrooms, preventing thermal runaway propagation or chemical fires.
Explosion-resistant variants with multi-layer steel/aramid composites protect semiconductor fabrication units and gas storage areas.
Energy & Utility Facilities:
Blast-rated doors (GJB2805B-2021 compliant) shield hydrogen fuel-cell stations and transformer vaults, integrating with BMS for auto-closure during overloads.
Logistics & Data Hubs:
Industrial-grade steel doors (1.5mm galvanized cores) secure loading docks and server rooms, combining impact resistance with fire/heat insulation.
Public Corridors & Evacuation Paths:
Glazed fire doors (ceramic glass panels) maintain visibility in R&D atrium links while providing 60-min integrity for safe egress.
② Critical Functions
Hazard Containment:
Intumescent seals expand at 200°C+ to seal ≤3mm gaps, confining flames/toxic gases for 60–180 min (exceeding GB 12955-2008).
Triple-lip gaskets reduce smoke leakage by 85%, critical for chemical-fire evacuation.
Smart Emergency Response:
Electromagnetic hold-open systems permit unrestricted movement; auto-close ≤30 sec post-BMS alert.
IoT-enabled sensors relay real-time door status (open/closed/temperature) to central fire panels.
Structural Resilience:
Reinforced hinges (4+ bearings) withstand shockwaves from equipment explosions.
③ Material & Structural Design
Core Construction: Galvanized steel frames (1.5mm thickness) with rock wool/mineral wool insulation for corrosive industrial environments.
Whipple-structure doors: Outer 6mm steel + middle ceramic fiber layer + inner damping alloy (absorbs 80% impact energy)
Ceramic-fired glass: (6mm + 12A air gap + 6mm tempered glass) for 60-min integrity + 85% light transmission.
④ Intelligent Systems
Hydraulic Fire Pads: Auto-extend to seal door-frame gaps during fires (patent CN202221724966).
Cooling Integration: Water-spray systems activate at 150°C to suppress battery thermal runaway.
⑤ Certifications & Performance
Compliant with GB 12955-2008 Class A (≥1.50h) and GJB2805B-2021blast standards.
Environmental Resistance: Salt-spray tested 500+ hours; typhoon-grade anchoring (wind load ≥1.5kPa).
Acoustic Control: STC 38+ rating dampens machinery noise in office-adjacent zones.
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