In the decoration of clean room, the most common ones are class 10000 clean rooms and class 100000 clean rooms. For large clean room projects, the design, infrastructure supporting decoration, equipment procurement, etc of class 10000 and class 100000 air cleanliness workshops must comply with market and construction engineering standards.
1. Telephone and fire alarm equipment
Installing telephones and intercoms in clean room can reduce the number of people walking around in clean area and reduce the amount of dust. It can also contact the outside in time in the event of a fire, and also create conditions for normal work contact. In addition, a fire alarm system should be installed to prevent the fire from being easily detected by outside and causing major economic losses.
2. Air ducts require both economy and efficiency
In centralized or purified air conditioning systems, the requirement for air ducts is to be both economical and able to supply air effectively. The former requirements are reflected in low price, convenient construction, operating cost, and smooth inner surface with low resistance. The latter refers to good tightness, no air leakage, no dust generation, no dust accumulation, no pollution, and can be fire-resistant, corrosion-resistant, and moisture-resistant.
3. Air conditioning purification project needs to pay attention to energy saving
Air conditioning purification project is a large energy consumer, so attention should be paid to energy-saving measures during design and construction. In the design, the division of systems and areas, calculation of air supply volume, determination of temperature and relative temperature, determination of cleanliness level and number of air changes, fresh air ratio, air duct insulation, and the impact of the bite form in air duct production on the air leakage rate. The influence of the main pipe branch connection angle on air flow resistance, whether the flange connection is leaking, and the selection of equipment such as air conditioning boxes, fans, chillers, etc. are all related to energy consumption, so these details must be taken into consideration.
4． Choose an air conditioner based on climate conditions
Regarding the selection of air conditioning, the climate environment where they are located should be considered. For example, in northern areas where the winter temperature is low and the air contains a lot of dust, a fresh air preheating section should be added to the general air conditioning unit and a water spray air treatment method should be used to clean the air and generate heat and temperature exchange. Achieve the required temperature and humidity. In the southern region where the climate is humid and the dust concentration in the air is low, there is no need to preheat the fresh air in winter. Primary filter is used for air filtration and temperature and humidity adjustment. The cold surface can also be used to adjust temperature and humidity. The temperature dehumidification process is followed by medium filter and terminal hepa filter or sub-hepa filter. It is best to use a variable frequency fan for the air-conditioning fan, which not only saves energy, but also flexibly adjusts the air volume and pressure.
5. The air conditioning machine room should be located on the side of the clean room
The location of the air conditioning machine room should be on the side of the clean room. This not only saves energy, but also facilitates the layout of the air ducts and makes the air flow organization more reasonable. At the same time, it can save engineering costs.
6. Multi-machine chillers are more flexible
If the chiller requires a large cooling capacity, it is not advisable to use a single machine but multiple mechanisms. The motor should use variable frequency speed regulation to reduce the starting power. Multiple machines can be used flexibly without wasting energy like a "big horse-drawn cart".
7. Automatic control device ensures full adjustment
At present, some manufacturers use manual methods to control air volume and air pressure. However, since the regulating valves for controlling air volume and air pressure are all in technical compartment, and the ceilings are also soft ceilings made of sandwich panels, they are basically installed and debugged. It was adjusted at the time, but most of it has not been adjusted since then, and it is actually impossible to adjust it. In order to ensure the normal production and work of the clean room, a relatively complete set of automatic control devices should be set up to achieve the following functions: clean room air cleanliness, temperature and humidity, pressure difference monitoring, air valve adjustment; high-purity gas, pure water and circulating cooling, detection of water temperature, pressure and flow rate; monitoring of gas purity and pure water quality, etc.
Post time: Apr-09-2024