The project of an industrial building ventilation production is made on the basis of technological design assignment, and architectural drawings.
In developing the project takes into account the requirements of the following regulations: SNIP
41-01-2003; SNIP 31-03-2001; SNIP 2.09.04-87; SNIP 21-01-97 * "; SNIP 23-02-2003; SNIP 23-01-99; SNIP 23-03-2003.
Outdoor temperature in the design of ventilation adopted: -27 ° C for the cold period; + 22,2 ° C for warm period; the duration of the heating period 207 days; the average temperature of the heating period -3 ° C.
Design parameters of outdoor air to the warm period in the design of the air conditioning system adopted: the temperature + 27 ° C; relative humidity 45%; enthalpy of 0.3 kJ / kg; moisture content of 10.8 g / kg.
The heat source for heating, air heaters, heating ventilation air handling units is an existing boiler. Coolant is hot water with parameters 95 - 70 ° C, entering the body from the heat networks.
The main source of cooling for the designed ventilation systems for industrial premises P1 is a condensing unit, air-cooled with axial fans "KSA 122S / Z». As an ozone-safe refrigerant used Freon R407C, circulating through pipes between the condensing unit and the cooling supply installation section P1. The cooling capacity of the system is determined on the basis of the calculation of heat gain.
Installation of equipment supply and exhaust systems are mainly provided in the HVAC room at elevation. 5.300 part of exhaust systems adopted in the outdoor version with installation on brackets with attachment to the outer wall of the mechanical assembly portion (duct fans B12-B14).
Fan of B11 (general exchange extract from the warehouse of oil and coolant) is mounted on a bracket to mount on the outside wall.
Some small-sized exhaust duct fans with capacity up to 2000 m3 / h for administrative and service premises located in the serviced rooms and in the corridors of the suspended ceiling.
Condensing units for installation on the roof of P1 set on inbound vestibule machine assembly area.
Ducts, conveying air, in this project is mainly made of galvanized steel sheet.
Ducts, conveying systems, local air suction from grinding machines are made of black steel sheet thickness of 1.5 mm.
The project provides insulation: Freon cooling system piping and ductwork installation P1 system P1. Insulation design adopted in accordance with the drawings of typical parts of thermal insulation, as well as take into account modern insulation materials.
Sound pressure levels in serviced areas, and in areas adjacent to these rooms, created when the ventilation system has been adopted in accordance with the requirements of Chapter SNIP 23-03-2003 "Protection against noise".
To reduce noise and vibration from ventilation systems includes the following measures: restriction of air velocity in ducts and louvered grilles (duct velocity: in the trunk of 8-10 m / s; branches 4-6 m / s; louvre gratings 1-1 5 m / s, but rather the air near the fan 8-10 m / s); Ventilation equipment use, has low noise; device flexible inserts made of rubberized fabric between the fan and duct attached thereto or plenum; installation of silencers on air and installations; sound-absorbing materials lining fences premises ventilation chambers; the use of antivibration foundations.