Diploma Project - Transportable Boiler House

Contents

1. Thesis Project Assignment

2. General part

2.1. Introduction

2.2. Understanding the Project

2.3. Technical description of kVa-P- 120Gn hot water boiler unit

2.3.1. Appointment

2.3.2. Technical specifications

2.3.3. Structure

2.3.4. Boiler arrangement and operation

2.4. Instrumentation

2.5. Feedwater quality

3. Thermal mechanical calculation of transportable plant

3.1. Basic Data

3.2. Thermal diagram

3.2.1. General position

3.2.2. Initial data for calculation of boiler room thermal diagram with kVa-P-120Gn for closed heating system

3.2.3. Calculation of boiler room thermal diagram with hot water boiler units kVa-P-120Gn for closed water supply system

3.3. Calculation of WAN heat exchanger parameters

4. Equipment selection

4.1. Water treatment

4.1.1. Water treatment for heating system

4.1.2. Water treatment for WAN

4.2. Pumps

4.2.1. Network pumps

4.2.2. Make-up pump

4.2.3. Recirculation pump

4.2.4. MW mains water pump

4.2.5. GVA Circulation Pump

5. Hydraulic calculation of pipelines

6. Ventilation

7. Heat Engineering Calculation

7.1. Source Data

7.2. Determination of the required thermal resistance of the building enclosing structures

7.3. External walls

8. Calculation of heat and air balance of boiler room

8.1. Heat supply from process equipment

8.2. Heat supply from electrical equipment

8.3. Heat from solar radiation

8.4. Determination of the amount of heat lost in heat networks

9. Environmental protection activities

9.1. Calculation of emissions of pollutants into the atmosphere

10. Internal water supply and sewerage

11. Electrical part

- Gas supply

- Automation

- Economics

- Technology and organization of production

- Occupational safety and ecology

- Energy saving

- Specification

- Appendix

-Literature

Introduction

The use of gas in the national economy allows intensifying and automating production processes in industry and agriculture, improving sanitary and hygienic working conditions in production and in everyday life, and improving urban air basins.

The low cost of gas, combined with the convenience of its transportation and the lack of the need for storage, provides a high economic effect of replacing other types of fuel with gas.

The development of natural gas production allows us to widely deploy work on gasification of cities and towns of our country at the Federal and Republican levels.

Natural gas has the following advantages over other fuels:

- high specific heat of combustion;

- Easy and easy transportation via gas pipelines over long distances;

- low cost of production and therefore low cost compared to other fuels.

In the conditions of municipal reform and new economic relations, which require maximum reduction of the cost of generated and transported thermal energy, the development of fundamentally new energy-saving technological schemes, the use of materials and equipment, improving the quality of work during the reconstruction and new construction of heat supply sources require a new unconventional approach and new solutions. In cases where centralized heat supply is not possible due to the absence and remoteness of heat network pipelines.

Special attention is paid to "Transportable boiler units of modular design," which are necessary for non-large facilities in both urban and rural areas.

Transportable boiler plants "on pulsating combustion boilers are reactive (due to pulsating combustion) weapons of municipal reform due to their small size and low cost due to the street placement of boilers.

Transportable boiler plants "are designed for heating and hot water supply of industrial, administrative, cultural and consumer facilities: schools, hospitals, residential buildings, gyms, etc.

The characteristic features of these "Block-module boiler houses" (hereinafter TKU) are:

1. Maximum proximity to the heat supply facility, which dramatically reduces the costs of heat supply and operation of utility networks.

2. No significant capital expenditure and time to build a boiler room building.

3. Simple and convenient solution of the issue when decentralizing heat supply.

4. Minimum commissioning time from commencement of construction and installation works.

5. Minimum installation and start-up costs.

6. Easily relocated by rail, water, road or air.

This diploma project "Transportable boiler plant on KVaP120Gn pulsating combustion boilers" was developed on the basis of the task of KZGO OJSC in Kambarka with the prospect of introduction into production.

Understanding the Project

The transportable boiler plant is a complex of full factory readiness, including the main and auxiliary equipment located in a modular building with lightweight heat-insulating enclosing structures from three-layer sandwich panels, a gas control plant and boiler units KVaP120Gn are located on an open area outside the building.

The transportable boiler plant is automated, does not require the constant presence of maintenance personnel. Control over the operation of the boiler room is possible from the control room.

TKU is designed for heating and hot water supply of objects having a closed heating system.

Coolant network water.

Temperature of direct mains water at the outlet of heat generating plant - tc = 95 ° С

Temperature of return network water at the inlet to the heat generating plant - t "c = 70 ° С

HVAC water temperature at the heater outlet - thvs = 60 ° C

HVAC water temperature at heater inlet - t "hvs = 5 ° C

Operating water pressure, not more than:

- in heating system - 0.6 MPa

- in WAN system - 0.4 MPa

Required head at TKU outlet

for heat network - H = 40 m

for WAN - H = 25m

Boiler house water supply - from domestic and drinking water supply as per GOST 287482. "Drinking water"

Thermal loads are accepted as follows:

- Total - 0.48 MW

- Heating and ventilation - 0.339 MW

- Hot water supply - 0.127 MW

- - for own needs - 0.014 MW

Type of fuel:

- main - natural gas of the Urengoy field of the Urengoy-Center-Asia gas pipeline with a calorific value of Qrn = 35.73kJ/nm3.

gas pressure at TKU inlet (upstream of GRU) - 0.3 MPa

- reserve fuel - task is not provided.

Climatic data are accepted for Uva village of Udmurt Republic:

Design temperature of the coldest five-day coverage 0.92: t = 34 ° C

Average heating temperature: tcp = - 4.7 ° C

Heating period duration: Zot.per. = 237 days.

Purpose of KVaP120Gn boiler unit installation.

Boiler unit is designed for heat supply of buildings and structures equipped with water heating systems with forced circulation. In terms of efficiency, safety and fundamentally new heat generation technology, boilers have no analogues in Russia and the CIS, are one of the most technological samples of co-temporary heat power engineering. The boiler design is a full-assembly monoblock, supplied by the manufacturer to the installation sites in prefabricated form, including automation diagrams and connecting gas ducts.

The novelty of boilers lies in the principle of their operation, based on periodic volumetric (faceless) combustion of fuel, as well as in design features, the main of which are the absence of a burner as a separate product, an smoke pump, mechanically moving parts, i.e. the boiler is a boiler unit of full factory readiness.

Work performed prior to installation

Prior to the start of erection work on the site, a list and deadlines of certain types of works related to the installation of the boiler room must be agreed between the general contractor and the specialized organization. The following works shall be performed:

1. Arrangement of foundations and other supporting structures for boiler building and chimney.

2. Installation of embedded parts and supporting structures provided by the design for fixation of chimneys, braces, pipelines.

3. Device of electric lighting in places of installation works and installation of power boards for connection of electric welding posts and electrified tool.

4. Arrangement of structures for piping connection.

The readiness of the facility for installation is drawn up by a two-way act signed by representatives of the general sub-contractor and subcontractor.

When drawing up the act, the presence of:

- roads to boiler room, places of equipment lifting, places of sanitary pipelines installation;

- platforms for installation of lifting mechanisms;

- sites for storage of sanitary materials and blanks;

- rooms for changing rooms, meals, as well as for work;

- trenches for sewage releases for the first wells from the building.

At the construction site not accepted for installation, it is repeatedly decided to perform installation work.