Fire-Proof Double Lead Door
Double protection: It integrates fire protection (fire resistance limit ≥ 2 hours) and radiation protection (lead equivalent 0.5-5mmPb) to comprehensively deal with fire and radiation risks.
Efficient passage: The double-opening design supports fast two-way passage, which is convenient for emergency evacuation or entry and exit of large equipment, and improves the applicability of the scene.
Tight sealing: The airtight frame is combined with the automatic locking system to effectively block the spread of fire smoke, high temperature and radioactive substances to ensure environmental safety.
Durable and damage-resistant: Surface anti-corrosion treatment and high-strength material are acid- and alkali-resistant, anti-aging, adaptable to extreme environments such as high humidity and radiation, and have a long service life.
Intelligent emergency: Equipped with a power-off manual opening function to ensure smooth passage during disasters, while complying with national fire and radiation safety standards, and low operation and maintenance costs.
Fireproof double-opening lead door is a special protective door designed for high-risk scenarios. It integrates fire prevention, radiation protection, airtight isolation and other functions. It is widely used in medical, nuclear industry, laboratory and chemical industries.
1. Structural design
Door body material: high-density lead plate (lead equivalent 0.5-5mmPb can be customized) and fireproof material (such as galvanized steel plate, fireproof rock wool) composite structure, embedded lead layer is evenly distributed to ensure radiation shielding without dead corners.
Door leaf type: double-opening design, door leaf width can be customized (conventional 1.5-3m), support two-way opening, convenient for personnel evacuation or large equipment passage.
Sealing system: The door frame is equipped with multi-layer fireproof expansion sealing strip + lead rubber airtight strip, which automatically expands and fills the gap when exposed to high temperature to prevent smoke, dust and radioactive particles from leaking.
2. Functional characteristics
Fireproof performance: The fire resistance limit is 2-4 hours (in accordance with GB 12955-2008 standard), can withstand high temperatures above 800℃, and the door structure is stable and does not deform.Radiation protection: The lead layer shields ionizing radiation such as X-rays and gamma rays, and the protection level is customized according to demand (such as 2-3mmPb commonly used in hospital CT rooms).
Intelligent control: Optional electric opening and closing device, support card swiping, fingerprint or remote control, can switch to manual mode when power is off to ensure emergency passage.
Durability: The surface is sprayed with epoxy resin or coated with stainless steel, which is corrosion-resistant, acid-resistant, and adaptable to harsh environments such as humidity and high radiation, with a service life of more than 20 years.
3. Application scenarios
Medical field: hospital radiology department, PET-CT room, interventional treatment room, etc., to prevent radiation leakage.
Industrial scenarios: nuclear power plant reactors, nuclear waste treatment plants, laboratory radioactive material storage areas.
Special places: chemical fire and explosion-proof areas, high-cleanliness biological laboratories, taking into account fire prevention and closed isolation requirements.
4. Installation and certification
Installation requirements: The steel door frame must be embedded to ensure seamless welding with the wall, and it can be put into use only after passing the airtightness test.
Compliance certification: It complies with GB 50016 "Building Design Fire Protection Code" and GBZ 130-2020 Medical Radiation Protection Standard. Some export products meet NFPA (National Fire Protection Association) and ISO radiation safety certification.
5. Additional functions (optional)
Observation window: Built-in lead glass window (lead equivalent matches the door body) to facilitate safe monitoring of internal conditions.
Alarm linkage: Connected to the fire protection system or radiation monitor, it automatically locks and triggers the sound and light alarm when abnormal.
Barrier-free design: Floor track flat or suspended door leaves, convenient for pushing beds and equipment without thresholds.
Fireproof double-opening lead door balances safety protection and ease of operation through modular design and customized services, and is one of the core equipment for safety protection in high-risk environments.
