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Requirements and precautions for overall laboratory planning and design
Date: 2025-06-26Read: 2
The overall planning and design of a laboratory is a key step in ensuring its safety, functionality, and efficiency, and requires comprehensive consideration of multiple factors.
1、 Requirements for overall planning and design of laboratory
1. Clear functional zoning
Core area: Divided according to the type of experiment (such as chemical analysis area, biological experiment area, instrument analysis area, clean area, etc.).
Auxiliary area: set up reagent storage room, washing and disinfection room, data processing area, office area, etc.
Common areas: corridors, distribution rooms, ventilation rooms, emergency evacuation routes, etc.
2. Safety priority
Fire and explosion prevention: Use flame-retardant materials, equip with fire-fighting equipment (such as fire extinguishers and sprinkler systems), and set up explosion-proof facilities in flammable and explosive areas.
Ventilation system: Reasonably design ventilation cabinets and exhaust hoods to ensure timely discharge of harmful gases and avoid cross contamination.
Electrical safety: Grounding protection, leakage protection, and explosion-proof electrical appliances are used in high-risk areas.
Biosafety: Laboratories involving pathogens must comply with BSL-2/BSL-3 standards and set up negative pressure isolation areas.
3. Environmental control
Temperature and humidity: Configure a constant temperature and humidity system (such as precision instrument room, microbial culture room) according to experimental requirements.
Cleanliness: Cleanrooms (such as PCR laboratories) need to reach the corresponding cleanliness level (such as Class 10000, Class 1000).
Lighting: Uniform and glare free, special areas (such as microscope operation tables) require additional local lighting.
4. Optimization of pedestrian and logistics flow
Personnel flow: Set up one-way channels (such as changing area → experimental area → buffer zone) to avoid cross interference.
Samples and materials: Independent transfer window or airlock to prevent contamination.
Emergency evacuation: Clear signage, evacuation channel width in compliance with regulations, and reasonable design of backup exits.
5. Scientific Equipment Layout
Large instruments: independent area, equipped with dedicated power supply, shock absorber platform, and heat dissipation space.
Common equipment: centrifuges, ovens, etc. are centrally placed for easy sharing and use.
Concealed pipelines: Gas, vacuum, and water supply and drainage pipelines are buried in the floor or wall and clearly marked.
6. Environmental Protection and Energy Conservation
Wastewater treatment: acid-base neutralization tank, biochemical treatment system, discharge after meeting standards.
Waste residue and exhaust gas: classified collection, equipped with dedicated storage cabinets and purification devices (such as activated carbon filtration).
Energy saving design: intelligent lighting, variable frequency ventilation system, reducing energy consumption.
2、 Precautions for overall laboratory planning and design:
1. Preliminary research and communication
Requirement analysis: Clarify the laboratory type (teaching, research, testing), experimental process, and equipment list.
Compliance inspection: Complies with national laboratory construction standards and industry specific requirements.
User participation: Communicate fully with laboratory personnel to avoid a disconnect between design and actual needs.
2. Avoid common misconceptions
Space waste: Excessive pursuit of "big and comprehensive" leads to low effective utilization. We need to plan step by step according to actual needs.
Insufficient ventilation: Blindly reducing the cost of exhaust systems leads to the retention of harmful gases. The ventilation rate needs to be calculated according to the type of experiment.
Insufficient circuit load: Failure to consider the power demand of high-power equipment such as electron microscopes and mass spectrometers resulted in difficulties in capacity expansion in the later stage.
3. Detail design
Tabletop material: acid and alkali resistant (such as physical and chemical board, epoxy resin board), smooth edges and corners to prevent collision.
Storage design: The height of the reagent rack is adapted, and the hazardous material cabinet is explosion-proof, fireproof, and managed with dual locks.
Identification system: Clearly label area functions, equipment status, and safety warnings.
4. Construction and acceptance
Material quality: The walls, floors, and ceilings should be moisture-proof and easy to clean. It is recommended to use epoxy flooring or anti slip ceramic tiles.
Process supervision: The sealing of ventilation ducts and the standardization of electrical wiring require on-site inspection.
Acceptance testing: including noise, illumination, temperature and humidity fluctuations, etc.
5. Post maintenance
Regular maintenance: cleaning of ventilation system filters, equipment calibration, and inspection of safety facilities.
Flexibility reservation: Reserve pipeline interfaces and power sockets to adapt to future equipment upgrades or layout adjustments.
