To build a fully functional laboratory, professional design must be carried out by professional laboratory decoration designers. It is necessary to comprehensively consider and follow the principle of people-oriented, and establish a standardized and standardized laboratory to achieve the best results.
First, rational design of the laboratory waterway
1. The upper water pipe adopts DG15PP material, PVC material, Kaitai tube, etc., the water pressure is not less than 2.5 MPa, the water is DG50 PP material, PVC, ceramic, the minimum slope is not less than 5 degrees, and the U-shaped anti-water bend is set in the water. It is not advisable to use metal for the upper and lower water pipeline materials. Laying to the outdoor pipeline is negotiable.
2, the toxic and harmful liquid produced by the test, the secondary water storage device should be designed, and then discharged after the disinfection and purification meets the discharge standard.
3, the test room sewer line should be designed with independent circuit, it should not be connected with other sewers such as toilets.
Second, rational design of the laboratory circuit
1, China's voltage standard, AC three-phase five-wire power supply 380V, 50HZ, (red A, green B, yellow C, black 0, two-color protection ground). AC single-phase three-wire power supply 220V, 50HZ, (red fire, black 0, two-color protection ground).
2, rational design of the laboratory electrical, layout of the line wire using copper core BVR, BV, wire diameter, switch size according to the electricity capacity calculation.
3, the large load electrical equipment is set up separately, and the corresponding automatic protection switch is designed.
4, precious instruments, precision instrument power supply, design AC voltage regulator or isolated power supply to ensure safe and reliable operation of the instrument.
5, all sockets, electrical enclosures must be well grounded to ensure personal safety.
6, reasonable design of air conditioning, lighting. Reasonable design of electric heating device for safe and reliable use.
Third, rational design of the laboratory gas path
1, in order to ensure safety, the experiment uses a variety of gases, conditions should be away from the working point to design a room with explosion-proof performance as a gas chamber storage, otherwise you need to set up a gas cylinder safety cabinet with automatic alarm function.
2, the test produces toxic and harmful gases should be designed negative pressure exhaust system to ensure that toxic and harmful gases are not leaking indoors.
3. Design a corresponding number of ventilation fans with upwind valves according to the size of the room to make the air flow smoothly and keep it clean.
4. Ventilation holes with filtering devices should be designed for each room. If there are rooms with indoor corridors, blinds can be placed on the doors and windows. The size is calculated according to the proportional relationship of the displacement.
Fourth, reasonable design laboratory exhaust
1, exhaust system engineering is the key to the construction of the laboratory, the effect of the fume hood is mainly due to the design of the exhaust system.
2, the material of the exhaust pipe is preferred as FRP inorganic resin material, PVC material or PP material can also be used to make rough surface on the inner wall of the air duct, which can reduce the noise of the wind flow. It can be round or giant, and the diameter is 250-500mm. The air volume requires a certain size.
3, FRP anti-corrosion fan type is determined: (1) axial flow fan, single fume hood, single air absorption hood for smaller air volume. (2) oblique flow fan, double fume hood, dual atomic absorption hood, slightly larger air volume. (3) Centrifugal fans, multiple fume hoods or when large exhaust air volume is required. (4) Roof fans (same as above) can be selected.
4, anti-corrosion fan should be installed on the outdoor roof, the air outlet is equipped with rain, bird cover, vibration absorber, upwind valve, silencer.
5. If the laboratory is equipped with a fume hood in an air-conditioned room, the air supply should be properly designed to avoid wasting energy.
Fifth, rationally design laboratory equipment and make full use of space:
1, make good use of the existing space to play the greatest role, so that the laboratory equipment layout is reasonable, in line with the regularity of the test operation, to achieve the best use of scientific space.
2, laboratory equipment is ergonomic, long, wide and high standards are suitable for humanized design concepts.
3, the laboratory equipment design is suitable for the test process, the work line is smooth, and the channel is smooth.
4, laboratory equipment design can not block the light, block the heating heat source and other waste energy.
5, laboratory equipment should be environmentally friendly, flame retardant, corrosion resistant, high strength and other professional materials, durable.
6, biological, genetic, physical, chemical and other disciplines of different disciplines, design different types of basic equipment, to ensure safety, economy, and practical. `
Six, laboratory construction planning
1, the laboratory decoration and general decoration are different, the design is not only beautiful and comfortable, but also to achieve fire, moisture, anti-corrosion and other performance, increase ventilation, purification, disinfection, aseptic and other functions, to achieve environmental safety, safety and durability .
2, the choice of decoration materials mainly consider environmental protection, anti-corrosion performance.
3, the use of thickness 12MM-19MM full glass partition, is the current general design of the laboratory construction. Spacious, bright and scientific.
4. The toxic and harmful gas liquid produced by the test should be treated twice to meet the discharge standard.