The design of ventilation HVAC production complex
Our company has completed the installation and design of a ventilation system for high-precision microelectronics production.
VENTILATION DESIGN
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2. HEATING AND HEAT SUPPLY
2.1. Water with parameters 90-70 ° C, coming from the boiler in axes 11 ... 14 / D, is used as a coolant.
In this working documentation the heating system is not developed.
2.2. Heating is provided from ITP. The parameters of the coolant 130-70 ° C.
2.3. Pass pipelines through walls and ceilings in sleeves.
Clearances should be carefully filled with non-combustible materials.
2.4. The main pipelines of the heating and heating system are laid with a slope, the direction of the slope is indicated on the diagrams.
2.5. Installation of heat supply systems should be carried out in accordance with SNiP 3.05.01-85, taking into account the communications of VK systems, power supply and lighting.
3. VENTILATION
3.1. In the reconstructed laboratory room, there is provision for general exchange supply and exhaust ventilation.
3.2. Air exchange on the premises of the laboratory 451 is determined by the calculation, sanitary standards. The air supply in the room is provided with a positive 10% imbalance of the supply air and is provided in the upper zone.
General exhaust hood B1 is provided from the lower zone.
3.3. Installation of filters 1,2 stages of cleaning EU4, EU7 in the supply system PV1 provides the initial cleaning of the air in the room. To ensure cleanliness class P8 and P7 in clean rooms, installation of the 3rd stage of cleaning of finishing filters H13 is provided.
3.4. For connection of air distributors and air voids, flexible thermally insulated aluminum air ducts of the Arctic company are used.
3.6. Supply and exhaust air ducts of the systems are made of
sheet steel according to GOST 14918-80 * thickness according to SNiP 41-01-2003.
The supply air duct of the P1 system is thermally insulated with K-FLEX insulation, thickness bm.
3.7. Installation of ventilation systems should be carried out in accordance with SNiP 3.05.01-85, taking into account the communications of the VC, power supply and lighting.
3.8. After installation, the gaps in the openings of walls, floors and coatings must be sealed with fireproof materials.
3.9. After installation, all ventilation systems are adjusted to the specified performance.
4. MEASURES FOR REDUCING NOISE
According to SNiP 23-03-2003, the following measures are envisaged for reducing noise from operating ventilation systems to values not exceeding the permissible sound pressure levels:
- the ventilation equipment is located in the premises, the enclosing structures of which are protected from the penetration of noise from these premises into the adjacent ones;
- fans and electric motors are separated from the ducts by flexible inserts;
- outdoor fan speeds and air velocity in ducts
and air distribution devices are taken with regard to ensuring the optimal acoustic qualities of the designed systems;
-In the intake and exhaust systems are provided silencers.
5. MEASURES FOR ENSURING EXPLOSION PROTECTION
The working documentation provides for fire prevention of heating and ventilation systems in accordance with the requirements of SNiP 41-01-2003.
Ventilation equipment is located in separate rooms.
The gaps in the passage of pipelines and ducts through the walls and floors are filled with non-combustible materials.
When the signal "Fire" turns off all ventilation systems.
All equipment is grounded.
6. AUTOMATION OF HEATING AND VENTILATION SYSTEMS
To ensure and maintain the required conditions of the air environment in the premises, improve the reliability of the systems, save heat, cold, electricity, as well as reduce the staff served by working documentation provides:
- local control over the parameters of indoor air and the parameters of heat and coolant;
- regulation of the degree of heating of the supply air;
- local and remote control of ventilation systems;
- alarm of ventilation systems and the degree of contamination of the filter;
- upon signal "Fire" all ventilation systems are disconnected.