Layout requirements of chemical laboratory equipment
The essence of the chemical laboratory is the basic laboratory in the process of chemical experiments. According to the requirements of the experimental tasks, there can be several or dozens of identical laboratory rooms. The size and form of these rooms should be selected according to the purpose of the experiment. Chemical laboratories have their own requirements. For example, according to their experimental purposes, they can be divided into: teaching laboratories used in schools, research laboratories used in scientific research institutes, and industrial laboratories used in factories and mines. The tasks of these three types of laboratories focus on various aspects. They are not the same, and the number of experimental personnel is different. Therefore, there are both commonality and differences in laboratory design, which need to be treated separately.
Chemistry Lab Form
1 A laboratory with standard experimental functions as the basic unit in a small space is suitable for research experiments and can provide a safe working environment for experimenters. The disadvantage is that the communication and mutual understanding between researchers in each room is not as convenient as in a large space laboratory .
2 Moderate space or large space form, which is due to the large room composed of multiple basic units. This large space is not suitable for some research laboratories because of the large mutual interference.
3 The form of large space with partition, which divides a large room into small spaces by using partition walls, or even fume hoods or other auxiliary experimental furniture, so this form is actually between the above two forms compromise form. This form is conducive to the utilization of space, enhances the mutual connection between researchers, and has the advantages of convenient installation and management of pipelines.
4 Flexible space forms can generally be considered from the following aspects in terms of flexibility: load-bearing partition walls, especially transverse partition walls, should be kept as few as possible, and frame structures can be used if possible; floor design loads should be It depends on the specific situation, but it should not be too low, and the fixed test bench should be set as little as possible. Even the fixed test bench should be designed to be composed of standard-scale prefabricated components, so as to facilitate disassembly and assembly. Piping manholes should be adequately configured to avoid opening holes in the floor in the future. There are two forms of flexible space. The first is a flexible space with movable partition walls. This kind of movable partition wall has a special structure and is easy to assemble and disassemble, but the pipeline along the wall must be exposed. At the same time, the pipe network system must have great flexibility, otherwise the advantages of the movable partition wall will not be prominent, because it is relatively easy to change the non-load-bearing partition wall, but it is more difficult to change the pipeline. The second type is general flexible space. This is a large space, where electrical wires and service supply hoses can be drawn from everywhere on the flat roof, and water pipes can be connected everywhere on the ground, so the experimental bench with the water basin and the fume hood are all movable.
In addition to the requirements for experimental benches and fume hoods, chemical laboratories should also set up necessary conditions according to actual use.
1 At least 1-2 faucets for cooling circulation tap water and washing water should be set up, and pure water supply points should be configured on the pool.
2. The chemical laboratory should have a laboratory basin, sink and washing tank, containing a water seal to prevent the odor of experimental wastewater. There should be a floor drain in the laboratory to prevent running water, soaking the laboratory and other water hazards.
3. The laboratory should set up a number of single-phase sockets, set up independent power distribution boards, leakage air switches, and if necessary, set up a three-phase power supply.
4 The laboratory is equipped with an air conditioning system, and its air outlet should be made of sprayed plastic or other treated metal materials, and the chemical laboratory generally does not have a return air outlet.
5. The lighting fixtures in the laboratory should not use metal products, and if the metal lamps are selected, they need to be treated with surface treatment to prevent corrosion.
6. All kinds of pipelines should be avoided as much as possible, and the laboratory should be concise. If possible, fire and smoke alarms should be installed.
7 safety facilities include fire extinguishing system, inert gas fire extinguishing system, safety cabinet, emergency rinser, eyewash, etc
8. Gas supply facilities include gas supply stations, gas supply plates, gas consumption boards and their pipeline systems.
Interior layout of a chemistry laboratory
The flooring material should be selected according to the requirements of each laboratory. Rooms without acid resistance requirements can generally use terrazzo or ash-free ceramic plate floors; Precision instrument rooms with moisture-proof requirements can consider using wooden floors; When there are requirements for acid resistance, alkali resistance, oil resistance, etc., perchloroethylene coating floor, plastic floor or acid-resistant ceramic plate floor can be used according to its medium concentration. The wall can be selected according to the specific design standards of ordinary wall plastering, paint or tile wall skirt, paint, paint wall, etc. Laboratory doors and windows require corrosion resistance, should be made of materials with excellent corrosion resistance, the use of aluminum doors and windows should be oxidized coloring treatment, or electrostatic epoxy resin powder spraying, electrophoretic painting and other profiles, both beautiful and corrosion-resistant; Plastic steel windows, steel windows coated with anti-corrosion paint or wooden windows are also available. Indoor doors should be made of wooden doors, and doors should be free doors or open outward.