Design of a boiler house for the needs of an industrial area

INTRODUCTION. 9

1 RATIONALE FOR THE THERMAL CAPACITY OF THE HEAT SUPPLY  SYSTEM 10

1.1 Consumer Characteristics. Climatic characteristics of the area. 10

1.2 Calculation of the heat load of the heating system of the district. 12

1.3 Calculation of the thermal load of the ventilation system. 14

1.4 Justification of the thermal capacity of the hot water supply system. 15

1.5 Substantiation of the thermal capacity of technological installations of the bakery. 18

1.6 Graph of annual heat consumption. 18

1.7 Regulation of the release of thermal energy from the boiler house. 21

2 DEVELOPMENT AND THERMAL CALCULATION OF THE SCHEME OF THE HEATING AND PRODUCTION BOILER HOUSE..  24

2.1 Development of the thermal scheme of the boiler house. 24

2.2  Calculation of the thermal circuit..  25

2.3  Calculation of fuel  consumption of the boiler unit. 31

3 SELECTION OF MAIN AND AUXILIARY EQUIPMENT. 36

3.1 Selection of steam boilers. 36

3.2 Chemical water treatment equipment. 37

3.3 Feed water deaerator..  39

3.4 Continuous purge extender. 40

3.5 Heat exchangers for heating water for heating and ventilation and hot water supply. 41

3.6 Heat exchangers for heating chemically purified water.  44

3.7 Selection of pumps. 46

4 Environmental protection..  55

4.1 Environmental Impact Assessment. 55

4.2. Measures to prevent and reduce the negative impact on the environment. 58

4.3 Calculation of the height of the chimney..  61

5 Economic part. 63

5.1 Investments in the construction of a production and heating boiler house. 63

5.2 Annual costs of ensuring the operation of the production and heating boiler house. 64

5.3 Determination of the cost of energy produced and the payback period of the production and heating boiler house. 67

Conclusion. 71

Bibliography   73