Composition of the course project on the topic "Ventilation of an industrial building"

Contents

1. DESIGN INPUT

2. THERMAL BALANCE OF PREMISES

2.1. Heatlosses

Main heat loss

Heat loss for infiltration air heating

Heat loss to heat incoming materials Heat to heat air penetrating through intermittent or permanently open openings

2.2. Heatreceipts

Heat input from heating 7 Heat input from people

Heat input from electric lighting

Heat emissions from solar radiation

Heat inputs from electric motors of operating machines

3. WATER BALANCE OF SUPPLY AND EXHAUST VENTILATION

General exhaust ventilation

Naturally induced exhaust ventilation

Pneumatic transport calculation

Plenum ventilation of workshops

4. EQUIPMENT SELECTION

4.1. Selection of ventilation equipment of plenum ventilation chamber

4.2. Selection of ventilation equipment of exhaust systems

4.3. Selection of equipment for air curtains

4.4. Selection of heating units

List of literature

Summary balance of plenum ventilation

Supply ventilation is provided in all workshops.

In the production building, the design air exchange is determined by the amount of air by excess apparent heat. Supply air distribution - to the upper zone is dispersed. In the summer period of the year, supply air is allowed through opening framugs of windows.

Supply air is supplied to the upper zone mechanically by plenum grids. In the warm period of the year, air is allowed to flow through the framugs of the windows.

Calculation of pneumatic transport networks is carried out with careful correlation of pressure losses, since valves are not allowed in air ducts. The duct network is designed taking into account the simultaneous operation of all suction pumps, including floor ones.

Cleaning of wood waste should be carried out in cyclones "Hyprodrevprom," cyclones are installed on the discharge line (after the fan) at a distance of 1015 m from the building. The choice of cyclone type and size depends on the material to be transported and the required capacity.

Naturally induced exhaust ventilation

To ensure a single air exchange during non-working hours, we design natural exhaust ventilation based on a single air exchange using UkrNIIST DVK5 deflectors. Productivity is determined for wind speed to calculate aeration during the transition period of the year (average annual), we take according to data [7] 5.3 m/s. Then we accept for installation according to the data [8]:

- in workshop No. 1 - deflector No. 7 with a capacity of 4770 m3/h;

- in workshop No. 2 - deflector No. 3 with a capacity of 880 m3/h;

- in workshop No. 3 - deflector No. 7 with a capacity of 4770 m3/h;

- in workshop No. 4 - deflector No. 6 with a capacity of 3475 m3/h.

Selection of equipment for air curtains

For air curtains, we accept the installation of a caliber manufactured by the company "Interconditioner" brands:

- for air curtains installed above the gate - PNV 11340401, with a heat output of 88.7 kW, 4000 m3/h through the air, surface area of ​ ​ 27.4 m2;

- for air curtains installed above doors - PNV 11340201m, with a heat output of 53.6 kW, through air of 2500 m3/h, surface area of 18.5 m2.

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