Design of ventilation system

The design of ventilation and exhaust systems involves numerous systems, including ventilation, water supply and drainage, water and electricity, and cleaning systems. There are significant differences in the design of different systems based on the type of laboratory. In the early stage of laboratory design, we should consider the ventilation design of the laboratory. How to route the exhaust duct, how to place the fume hood, what kind of fume hood to choose, and so on. So what other aspects of laboratory ventilation design must be considered?

How should the laboratory ventilation system be designed?
Design of ventilation systemIt will involve numerous systems, including ventilation, water supply and drainage, water and electricity, and cleaning systems. There are significant differences in the design of different systems based on the type of laboratory. inDesign of ventilation systemIn the early stages, we should consider laboratory ventilation design. How to route the exhaust duct, how to place the fume hood, what kind of fume hood to choose, and so on. So what are the other things that need to be noted in the ventilation planning of Jinding Tong?

1. Setting ventilation conditions and principles
The purpose of ventilation in laboratory buildings is to prevent the release of large amounts of heat, steam, or harmful substances into personnel activity areas, and to prevent the pollution and damage of harmful substances to the environment and buildings. The control of a large amount of waste heat, moisture, and harmful substances should focus on prevention and require coordination and cooperation among various professions to achieve effective management. When the use of ventilation to treat waste heat and moisture can meet the requirements, ventilation measures should be prioritized to greatly reduce the energy consumption of air treatment.

2. Requirements for harmful substance emissions
Some buildings, such as research and teaching laboratories, laboratory equipment rooms, etc., will release a large amount of heat, steam, dust, and even toxic gases during use and storage. For example, kitchens in catering buildings will contain a large amount of oil fumes in the exhaust. If no control measures are taken, it will directly endanger the health of operators and workers, and also pollute the natural environment around the building, affecting the health of surrounding residents or office workers. Therefore, comprehensive and effective prevention, governance, and control measures must be taken. The standards and treatment measures for oil fume discharge in catering buildings should comply with the regulations for oil fume emissions in the catering industry.

3. Selection of ventilation methods
Considering the requirements of energy conservation, natural ventilation mainly involves changing the building form reasonably and moderately, utilizing the effects of heat pressure and wind pressure to form organized airflow, meeting indoor requirements, and reducing ventilation energy consumption. In laboratory design, the utilization of natural ventilation should be fully considered to meet indoor requirements and reduce ventilation energy consumption. The utilization of natural ventilation should be fully considered in the design. In summer, natural ventilation should be used as much as possible; In winter, natural ventilation should also be considered when outdoor air directly enters the room without forming fog and without condensation on the surface of the maintenance structure. When using natural ventilation, the limitations of local outdoor meteorological parameters should be considered.