Architectural and construction solutions for the boiler room

The boiler room is freestanding and is a one-story rectangular room with dimensions in the axes “A-B” - 3,3 m, “1-5” - 10,0 m, the height of the boiler room to the bottom of building structures (on average) - 2,5 .XNUMX m From the boiler room, access is provided directly to the street - a double-leaf door with a leaf size of 1200x2100 mm, located along axis 1 between axes A and B. Walling: wall material - wall sandwich panel, 100mm thick; load-bearing element of walls and ceiling - metal columns; floor - aluminum sheet "Quintet" together with two sheets of baked plywood; roof - 2-pitched roofing sandwich panels, 150 mm thick. Easy-to-reset windows are used as easy-to-reset structures. The area of ​​easily dropped structures is 2,6 m². The device of easily dumped structures of the boiler room complies with SNiP II-35-76*. Sleeves are provided at the intersections of engineering communications with the foundation and the enclosing structures of the boiler house buildings (for pipelines and power and control cables in places). The foundation of the boiler house and the chimney is a monolithic reinforced concrete slab, made in accordance with the data of geological surveys. The boiler building complies with SNiP II-35-76*.

thermal scheme

The thermal scheme of the boiler house is presented in section 28/10-SMR-TM sheet 2. The scheme of the boiler house is double-circuit, closed; six-pipe. From the boiler house, heat consumers are supplied to the heat consumers of the MCC, service stations, Avtosalon. The scheme for connecting each of the consumers to the boiler room is two-pipe, independent. Regulation of heat supply to consumers is of high quality. The boilers operate in cascade control mode. To ensure circulation in the boilers, a double boiler pump is installed in the boiler circuit. To protect the boiler from low water temperatures in the return pipeline, mixing boiler pumps are provided. Boiler pumps are located on the return pipeline of each of the boilers (T2). All pumps installed in the boiler room, incl. and boiler pumps manufactured by Wilo. Water in the external circuit from the heat exchangers enters the distribution manifold, from which the coolant is released into the heating, ventilation, and thermal curtains. The heat carrier from the supply manifold is constantly supplied to the heat consumption systems by circulation pumps. The circulation pump of the heat consumption system is located on each supply pipe of the system (T1). The pump runs continuously. The following are accepted as coolants: Hot water from boilers to heat exchangers with a temperature schedule of 105-75 °C. Regulation (maintenance) of the temperature graph is provided in the "AK" section. Hot water from the collector to the heat consumption system of the paint and body shop with a temperature schedule of 90-70 ° C with weather-dependent regulation. The heat supply is controlled by a three-way valve by mixing water from the return pipeline of the heating system into the supply pipeline of the heating system. Hot water from the collector to the heat consumption system of the maintenance building with a temperature schedule of 90-70 ° C with weather-dependent regulation. The heat supply is controlled by a three-way valve by mixing water from the return pipeline of the heating system into the supply pipeline of the heating system. Hot water from the collector to the heat consumption system of the car dealership with a temperature curve of 90-70 ° C with weather-dependent regulation. The heat supply is regulated by a three-way valve by mixing water from the return pipeline of the heating system into the supply pipeline of the heating system. The following pumping equipment is accepted for installation: to ensure the circulation of the heat carrier in the boiler circuit, a double boiler pump of the company “Wilo” of the brand “TOP-SD 80/10 3~” (1 pc.) is installed. The electric motors operate in the “working-standby” mode. The system for automatically switching on the reserve of these pumps is displayed in section 28/10-SMR-ATM; to ensure the circulation of the coolant in the heat consumption system of the paint and body shop, a double circulation pump of the company “Wilo” brand “DPL 40/130-2,2/2” (1 pc.) was installed, the electric motors operate in the “working-backup” mode. The system for automatically switching on the reserve of these pumps is displayed in section 28/10-SMR-ATM. to ensure the circulation of the heat carrier in the heat consumption system of the maintenance building, a double circulation pump of the company “Wilo” of the brand “DPL 40/130-2,2/2” is installed, the electric motors operate in the “working-standby” mode. The system for automatically switching on the reserve of these pumps is displayed in section 28/10-SMR-ATM. to ensure the circulation of the coolant in the heat consumption system of the car dealership, a circulation pump of the company “Wilo” of the brand “DPL 50/140-3/2” was installed. The technical accounting of the source water consumed for the needs of the boiler house is carried out by a water meter of the “VSH” type. The initial filling of pipelines and equipment of the boiler house and feeding of the heating network is carried out with a solution of ethylene glycol with chemically purified water delivered by trucks. The chemical composition of the source water (ethylene glycol solution) meets the requirements for the quality of water supplied to boilers and consumer heat supply systems. On the make-up line after the installation of chemical water treatment, in the direction of water movement, a pressure regulator “after itself” is installed, which maintains the necessary pressure in the system. To compensate for thermal expansions, expansion tanks are installed in heat consumption systems. Each boiler is also equipped with expansion tanks. A shut-off valve in front of the expansion tank is installed to enable the hydraulic system to be serviced: the necessary pressure testing of the system with a given pressure, checking the correct operation of the system, ease of operation and repair. To prevent unauthorized closing of the crane, special fittings are installed, protected from accidental closing. Estimated water flow rates and pipeline diameters are determined in accordance with current regulations based on the initial data provided by the Customer. To drain water from the system, drains are provided at the lowest points of the system and on the boilers. To remove air from the system and boilers, automatic air vents are provided. The project provides for the technical accounting of thermal energy. For technical metering of the generated thermal energy, flow meters with a pulse output of the “VST” type are installed on the external circuit. The organization of technical accounting of the supplied thermal energy is necessary for the implementation of the regime adjustment of boilers, as well as for determining the energy efficiency parameters of the boiler house during the entire period of operation.