Block Boiler House

Contents

General part

Basis for Working Project Development

Object characteristic

Geotechnical and hydrogeological conditions of the construction area

Space-planning and structural solutions of the unit boiler house

Decisions on the general improvement plan and their indicators

Main design solutions for gas supply

Technical indicators of the gas pipeline

Work Instructions

Gas supply

Technical solutions for gas supply

Construction of polyethylene gas pipelines

Construction of steel gas pipelines

Testing of gas pipelines

Gas control points

Boiler room gas equipment

Boiler house technical and economic indicators

Automation of safety and regulation

Thermal mechanical part

Manufacturing Technology Solutions

Heating and ventilation solutions

Water and Sanitation Solutions

Electrical solutions

General part

Construction of internal power supply

Construction of 0.4 kV line, installation of KL-0.4 kV

Lightning protection

Organization of Gas Management Service

Health and safety measures

Environmental protection

Chimney Calculation

Applications

License GS-5-72-02-26-0-7205016565-006069-1 dated April 2, 2007, issued by the Federal Agency for Construction and Housing and Communal Services, for

the right to design buildings and structures of I and II levels of responsibility in accordance with the state standard

Task to develop a working project of a block boiler room with a supply gas pipeline for heating the kindergarten building in the village. Oshchepkovo, Abatsky Municipal District, Tyumen Region

Specification for "Connection to the gas distribution network of the block boiler room of kindergarten at the address: Abatsky district, s. Oshchepkovo, st. K. Marx 8. , "ext. No. 693/08, b/d

Specification for "Connection to the water supply networks of the block boiler house of kindergarten at the address: Abatsky district, s. Oshchepkovo, st. K. Marx 8"

Sewerage certificate issued by the Municipal Unitary Enterprise of Housing and Communal Services of the Abat Region, Tyumen Region, dated 07.04.08

Heat supply certificate issued by Municipal Unitary Enterprise of Housing and Communal Services of Abat District, Tyumen Region, dated 07.04.08

Architectural and planning task No. 3 for the designed object of the block boiler house "Kindergarten" at the address Tyumen region, Abatsky district, with. Oshchepkovo, st. K. Marx, 8 of 24.03.08

Certificate of conformity No. ROSS RU. AE58. IN

Appendix to the certificate No. ROSS RU. AE58. IN

Permit for use of boilers No. RRS 00-

Drawings

General data (start). THE EXPERT -

General data (end). THE EXPERT -

Section 1-1. Facades. THE EXPERT -

Plan at el. + 1.000. Roofing plan. Layout of foundation slabs. Nodes. THE EXPERT -

Cuts. Nodes. THE EXPERT -

Cuts. Nodes (continued). THE EXPERT -

Specification AC-

General Plan. TEP. Improvement plan. GP-

Installation diagram of the bead stone. Construction of sidewalk clothing. GP-

Facades. GP-

General data. GSN-

Specification. GSN-

Gas Pipeline Plan -

Uzel1, Uzel2 GSN-

GSN gas pipeline design diagram

Gas pipeline profile

General data. GSV-

Specification. GSV-

Gas pipeline plan. Chimney plan. GSV-

Gas pipeline diagram. GSV-

Design diagram of the internal gas pipeline GSV-

Unit for connection of gas ducts to GCW chimney

General data. TM-

Specification. TM-

Equipment placement plan. Piping Plan. TM-

Thermal diagram. TM-

Cuts. TM-

General data. THE CU -

Specification. THE CU -

Network diagram. Section 1-1. THE CU -

TS- Network Plan

Plan of thermal units UT1, UT2 TS-

TS- network profile

General data. Specification. OV-

Heating plan. Heating scheme. Ventilation diagram. OV-

General data. VK-

Specification. VK-

Plan at elevation 0.000. Diagram B2, K3. VK-

General data. AGSV-

Specification. AGSV-

The boiler is gas. Automation diagram. AGSV-

External Transaction Connection Scheme. AGSV-

Protection shield. Electrical circuit diagram. AGSV-

Automation location plan. AGSV-

General data. ES-

Specification. ES-

Single-line diagram of electrical networks. ES-

Power Equipment Plan. Boiler room electrical lighting plan. ES-

Plan of external networks of power supply of ES-

Outdoor lighting. Specification. ES-

Sketch of entry into the EPS building

Attachment nodes. Specification. ES-

General data. PS-

Network diagram. Plan at elevation 0.000. Specification. PS-

General data. Lightning protection. Specification. EG-

Attached drawings:

Installation of blowdown plug VG-98-

VG-41- sampling unit

Support for VG-02- valve

Foundation for chimney VG-01-

Protection 1.5x1.5 NG-01-

Identification mark NG-01-

Support under GRPSH-10MS NG-01-

1.1. common part

1.1.1 Basis for development of working design

The working project was developed on the basis of:

• Tasks for the development of a working project for a block boiler room of a kindergarten with. Oshchepkovo, Abatsky Municipal District, Tyumen Region.

• Agreement XXX of January 15, 2008

1.1.3. Geotechnical and hydrogeological

construction area conditions

Engineering and geological surveys were carried out by LLC XXXXXXXXXXXXXXX.

The area is characterized by an average complexity of engineering and geological conditions (Appendix B SP 1110597 "Engineering and geological surveys for construction").

Lithologically, the section of the survey area is composed of solid loams (1,52.3 m) stretching along the entire width of the section, soft-plastic (2,36,0 m). The soil is covered from the surface with a soil-vegetation layer, chernozem, which lies to a depth of 0.91.0m .

The standard depth of seasonal freezing for loam and clays is 1,82m, (item 2.27 SNiP 2.02.0183 "Bases of buildings and structures").

Groundwater at this site was opened by drilled wells to a depth of 3.74.0 m.

Lake-alluvial upper-quaternary deposits (alQIII), modern quaternary deposits (alQIV) of lake-alluvial and man-made genesis take part in the geological structure of the region.

The bearing capacity of soils is higher than 2.5 kg/cm2, which allows for production and civil construction.

1.1.4. Space-planning and structural solutions of the unit boiler house.

The designed block boiler house refers to mobile buildings of the mobile type according to GOST 2595783 is provided in the form of a box block made in a specialized workshop one-story, frame, rectangular in plan, width - 3 m. length - 6 m. rack spacing - 0.80.9. The average internal height is 3 m. The total useful area is 18 square meters. m. See plan at elevation 1,000 sheet AC3, section 1-1 sheet AS-4.

The frame of the building is designed from posts (metal channels). The struts are connected to the base and the roof beams by electrical welded joints. The base of the box unit is designed from channels located along the perimeter of the boiler room and along the middle, metal sheets of 4 mm - 6 mm are attached to them for welding. corrugated sheet steel 4 mm on the floor, and sheet steel 6 mm on the bottom. The space between steel sheets is filled with ceramsite concrete. The roof is designed metal from beams of coating made of channel U10. Slope towards axes 1 and 2, height difference is 0.26 m. Between the struts, a grill of 100x60 bar is fixed on self-carved screws. The outer walls and roof are lined with metal lining, and the inner walls and roof are covered with galvanized roofing steel on self-carved screws. The space between metal casting and galvanized steel is filled with carbolene (foam). Carbamide foams are difficult to burn,

polymer material with cellular structure produced by air

by foaming the carbamide-formaldehyde-based composition

resins, density (1020 kg/m3), frost and bioavailability,

difficulty burning, resistance to the action of most organic

solvents. The material is easily cut by any cutting tool

tool. Foam flammability category - G1.

On the north and east sides of the designed block boiler house, two window openings are designed at a height of 0.9 m from the floor level. Filling of window openings, wooden double glazed windows with single glazing.

On the north side along the axis "2" there is an entrance to the block boiler room. DSN 2100h900 door. A ramp is provided in front of the entrance for unhindered movement of floor transport.

The finished block boiler house is installed on the railway/concrete foundation slabs. At least 750mm wide paving is arranged on the perimeter of the designed block boiler house. with a slope of concrete Cl.B15. Make ladder with concrete ramp Ch. B15.

In the designed block boiler house the installation of the gas equipment and its binding, a tank for water of 1.0х1.0х0.8 in size is provided

1.1.8. Work Instructions

Before starting construction and installation work, prepare the territory, including cutting down shrubs on a total area of ​ ​ 450 m2. Construction of gas pipelines from polyethylene pipes shall be carried out in accordance with SNiP 42012002 "Gas Distribution Systems," SP 421012003 "General Provisions for the Design and Construction of Gas Distribution Systems from Metal and Polyethylene Pipes." All works shall be performed in accordance with chapters SNII480 * "Safety in construction," SNiP 3.03.0187 "Load-bearing and enclosing structures," SNiP 3.02.0187 "Earthworks." Use only high-quality devices and materials that have been tested and have a certificate of conformity.

1.2. gas supply

1.2.1. Technical solutions

The project was developed in accordance with the requirements of SNiP 42012002 Gas Distribution Systems, PB 1252903 Safety Rules for Gas Distribution and Consumption Systems, SP421012003 Design and Construction of Gas Pipelines from Polyethylene Pipes and Reconstruction of Worn Out Gas Pipelines, SP 421022004 Design and Construction of Gas Pipelines from Metal Pipes.

The project provides for the construction of gas pipelines made of steel and polyethylene pipes.

Prior to the start of gasification installation works, a representative of the customer's technical supervision from among the ITR must be appointed, who passed the exam for knowledge of the "Safety Rules for Gas Distribution and Gas Consumption Systems" and the corresponding chapters of SNiP.

The construction of the facility can be started only after the complete supply of pipes, connectors and gas equipment.

1.2.2. Construction of polyethylene gas pipelines.

Gas pipelines of average pressure are executed from polyethylene PE pipes GAZ of SDR 11 with a diameter of 63х5.8 GOST of P5083895 production of the Sibgazapparat plant Tyumen.

Length of polyethylene gas pipeline:

-PE 63x5.8 - 68.5 m;

The diameter of the medium pressure gas pipeline is accepted according to technical specifications.

Gas pipelines are laid underground in the ground, at a depth of 1.6 m to the pipe axis.

When the gas pipeline enters and leaves the ground, the gas pipeline must be laid in the case, the ends of the case must be sealed.

It is not allowed to use flattened pipes for the construction of gas pipelines, having a diameter reduction of more than 5% of the nominal, and pipes with incisions and scratches with a depth of more than 0.7 mm .

Tie-in point from the designed crane assembly.

The construction of crossings must be carried out, as a rule, without cutting the soil on the construction strip (in order to avoid erosion) using special methods of work (dragging weaves on steep slopes, welding single pipes into trenches, using individual technological schemes, anchoring machines, etc.).

Before laying the raft at the junction, it is recommended to perform control leveling of the trench bottom, and if necessary, rework the trench bottom.

Installation of the raft on the longitudinal slope in order to avoid its sliding down the slope should be carried out from bottom to top with the supply of pipes (sections) from top to bottom, which facilitates the process of assembling joints.

Connection of polyethylene pipes to each other is provided by welded electric couplings with registration of welding parameters.

The connection of polyethylene pipes with steel is provided for by permanent joints manufactured by the Sibgazapparat plant in Tyumen. Perform welding at ambient air temperature from minus 150 to plus 300 С.

When laying gas pipelines, the base is provided for a gas pipeline 10 cm high from sand.

Non-detachable "polyethylene steel" joints shall be laid on a sandy base with a length of 1 m on both sides of the joint, with a height of 10 cm. and are covered with sand 30 cm high.

Sprinkle is produced in summer at the coldest time of day, in winter at the warmest time of day.

Excavation during the construction of the gas pipeline should be carried out in accordance with the requirements of GOST R 12.3.0482002 "System of labor safety standards. Construction. Excavation by hydromechanization. Safety Requirements "and SP 421012003" General Provisions for the Design and Construction of Gas Distribution Systems Made of Metal and Polyethylene Pipes. " By the time the gas pipeline is laid, the bottom of the trench should be cleared of branches, tree roots, clumps of soil and stones. The gas pipeline must rest on its entire length on a dense base.

Polyethylene gas pipeline in the trench for compensation of temperature extensions shall be laid with a snake in the horizontal plane. The width of the trench is the diameter of the gas pipeline plus 300 mm. The turning radius of polyethylene gas pipelines must be at least 50 pipe diameters.

The designation of the gas pipeline route is provided by installing identification marks (in accordance with the provisions of SP 421012003) and laying the signal tape along the entire length of the route.

The project provides for laying along a sprinkled (at a distance of 0.2-0.3 m) gas pipeline of an isolated aluminum or copper wire-satellite APV-4 with its ends reaching the surface under the carpet or case near the identification mark.

The project provides emergency stock of polyethylene pipes for repair works during operation of the gas supply system in the amount of:

PE 63h5.8 6 m long - 1 piece.

Steel pipe 57x3.5 6 m long - 1 pc.

Gas pipelines are indicated by signs located on the walls of buildings and structures, as well as on special reference columns at a distance of not more than 200 m from each other.

To determine the location of the gas pipeline along the entire gas pipeline route, a signal tape should be provided.

1.2.3. Construction of steel gas pipelines.

Connection unit, GRPSH binding, above-ground laying of gas pipelines, entry into the building are made of steel pipes. Steel gas pipelines are designed from pipes according to GOST 1070491 "Grade" and GOST 1070580 "Specification" from steel of group B of at least 2nd category according to GOST 38088 with a diameter of 57x3.5 mm, 32x3.2 mm. Pipe connection is provided on welding as per GOST 1603780.

For protection of steel pipelines passive insulation of "very reinforced" type from PVC-L film in 3 layers by adhesive primer on polymer base GT780 IN with PEKOM protective wrapper as per GOST 9.602.89 is used.

To reduce soil electrochemical corrosion on steel pipelines at the point of gas pipeline introduction to the surface of the earth to the entire depth of the trench above steel gas pipelines, local soil is replaced with sand.

When entering and leaving the ground, the steel gas pipelines are enclosed in a case of steel pipes, the ends of the cases are sealed.

Elevated gas pipelines become covered with PF115 enamel in two layers on primer GF021 in two layers. Identify the above-ground parts of gas pipelines as per GOST 1420269.

1.2.6. Boiler room gas equipment

The project provides for gas supply to the boiler house for heating the kindergarten building with. Oshchepkovo, Abatsky district, Tyumen region with natural gas.

Two Hoper 80A boilers (main and standby) and an Ariston NHRE60 water heater are installed in the boiler room. The total capacity of the boiler house is 219.9 kW.

All boilers run on natural gas.

According to the reliability of heat supply, the kindergarten belongs to category I according to GOST 30494 (Table 2), therefore, the project decided to install 2 Hoper 80A gas boilers, which minimizes the possibility of stopping and interrupting the supply of coolant of the necessary temperature to the heating system.

Boiler house gas equipment includes:

- introduction of a gas pipeline into a boiler house with a diameter of 57x3.5;

- installation of boilers;

- automation of fire safety and alarm of boilers operation.

The boiler room operates without permanent maintenance personnel. Signals about the furnace work disturbance are output to the duty room.

Gas pipelines of the boiler house are equipped with a blowdown pipeline. Gas pipelines shall be made of steel electric welded pipes as per GOST 1070491 group. In not lower than 2 categories according to GOST 38088. Gas pipelines shall be painted in 2 layers with yellow paint according to GOST 1420269 as per primer GF021.

The design provides for installation of gas metering unit SG16MT with corrector TC 210. The operating pressure of the measured gas at the place of installation of the SM16MT meter is from 1200 Pa to 6.3 MPa. Gas flow rate from 10 to 100 m3/h. The diameter of the conditional passage is 50 mm.

Designed gas ducts and chimney satisfy boiler operating conditions. Holes with a diameter of not less than 50 mm shall be provided in the gate installed on the boiler chimney. During repair install "blind gate" instead of gate with hole. The Hoper boilers operate at low pressure.

Ventilation in the boiler room is natural, satisfying the requirement of SNiP 2.04.0887 *. Air inflow is carried out through louver grilles. Drawing through a hole in the wall of the boiler room in the wall of the boiler room.

Provide for easily dischargable enclosing structures at a rate of 0.03 square meters per 1 cubic meter. volume of the room in which the boilers are located.

The chimney is provided from metal, has external thermal insulation and a hatch for cleaning and inspection.

At the inlet of the gas pipeline to the boiler room, a heat-intake valve is installed to cut off gas in case of fire.