Architectural solutions

The installed central heating point is a two-level building structure, block-modular type, consisting of a steel frame with hinged sandwich panels (gray, 100 mm thick). Prefabricated heating substation container manufactured by Entroros LLC, Russia - certificate of conformity No. РСС RU.В081.PR49.0012 dated March 25.03.2009, 7,5. The central heating substation is installed on a slab foundation. Module dimensions in terms of 7,3 x 6,9 m, height - 395,55 m. Construction volume V = 3 m57,75. Building area S = 2 m200. The exit from the CTP is provided directly to the outside. The foundation for the CTP building is a monolithic reinforced concrete slab 100 mm thick, for concrete preparation 0,45 mm. The load-bearing and enclosing structures of the central heating substation have a fire resistance limit of 3 h, the limit of flame propagation along the structure is equal to zero, and the ceiling of the central heating substation is made of materials of the NG group (non-combustible). Enclosing and structural materials have a technical certificate and a hygienic and fire certificate of compliance with the requirements of Russian norms and standards. The main architectural and design solutions are presented in the drawings of the AS brand (Volume XNUMX of the project).

Thermal mechanical solutions. layout solutions. Description of the thermal scheme of the CHP.

In accordance with the Design Assignment, the CHP provides for the use of pumps from the company "WHO" (Germany), collapsible plate heat exchangers from the company "Alfa Lav al" (Russia). All imported materials and equipment are certified for use in Russia (see applications). The circulation of the coolant in the primary circuit of the heating system is carried out by pumps "WHO" IIPL 100/175-3/4 (1 working + 1 reserve) - pos. K1, K2. The circulation of the heat carrier in the primary circuit of the DHW system is carried out by pumps "WILO" 1P-E 80/115-2,2/2 R1 (working + reserve) - pos. K3, K4. Heating system - independent through plate-type collapsible heat exchangers, 100% load for each - pos. K15 - K16. DHW system - independent through plate-type collapsible heat exchangers, 100% of the maximum hourly load for each - pos. K17, K18. The heat carrier temperature is controlled by three-way control valves from ESBE (Sweden) installed in the secondary circuit, depending on the outside air temperature - pos. K 38, K 39. The circulation of the coolant in the secondary circuit of the heating system is provided by pumps "WHO" IPL 65/140-4/2 (1 working + reserve) - pos. K5, K6 and "WHO" IPL 40/120-1,5/2 pumps (1 working + standby) - pos. K7, K8. The circulation of the heat carrier in the secondary circuit of the DHW system is provided by pumps with frequency regulation "WHO" MV1 802/PN16 3~ (working + standby) - pos. K9, K10. To maintain the required volume of water in the heating and hot water system caused by the possibility of leaks, the project provides for automatic make-up from the water supply. Primary filling of equipment and pipelines is provided with prepared water. The supply of cold water to the central heating station for the preparation of hot water, make-up and filling of heat supply systems is supposed to be through two inputs from the networks, in accordance with the issued technical specifications. To compensate for the thermal expansion of water: - the heating system provides for the installation of two storage tanks 3Ф.015.003.000, with a capacity of 2000 l - pos. K19, K20; - the installation of an expansion tank AFE CE 35 by Cimm (Italy) with a capacity of 35 l is provided for in the DHW system. - pos. K24. To compensate for hydraulic shocks of the heating system make-up, the following is provided: - 2 expansion tanks Flexcon CE 1000 from Flamco (Netherlands) with a capacity of 1000 liters. - pos. K21, K22. - To increase and maintain the required pressure in the make-up system on the cold water supply system, the following is installed: - booster station of the company "WILO" MVIE 3202/PN16 - pos. K11...K12 for feeding the heating system and a booster station from the company "WILO" MHI 405 3~ for feeding the heating circuit - pos. K13, K14. The placement of equipment and piping are done in such a way as to provide the necessary passages for maintenance, installation and dismantling of equipment, in accordance with the passports and operating instructions for the equipment used (the central heating unit operates in automatic mode without the constant presence of maintenance personnel).

Measures to ensure the trouble-free operation of the CHP

The central heating point provides for all measures that ensure safe and reliable operation in automatic mode without the constant presence of maintenance personnel. The project provides for a warning alarm device with notification of deviations from the norm of technological parameters and the issuance of signals to the control room. The resumption of normal operation of the central heating unit is possible only after the cause of the malfunction has been eliminated. The room of the central heating point is equipped with fire and security alarm systems. All metal non-current-carrying parts of electrical equipment are grounded using an internal ground loop connected to a grounding device. All power electrical equipment is grounded using a separate power cable. All equipment installed in the heating point is certified.

Energy metering units

The following types of metering are provided in the central heating point: 1. For measuring the supplied thermal energy, it is planned to install heat meters on the direct and return pipelines of the heating and hot water circuits. The meters are installed together with a heat calculator, which converts the output signals of flow, temperature, pressure sensors; calculates and maintains technical records of heat energy consumption. 2. A meter for commercial metering of the consumption of cold water consumed by the central heating substation is installed on the utility and drinking water pipelines. 3. Technical accounting of consumed electricity. Accounting for consumed active electricity is provided by an electric meter with current transformers. The installation of a commercial electricity metering unit is provided for in TP-197, in accordance with the technical specifications of Kurortenergo OJSC No. 70/2-PR dated 20.03.2009/4859/001. All pipelines and pumping units are equipped with the necessary number of instrumentation in accordance with technical specifications No. 23080639-2004-XNUMX-XNUMX.

Heating and ventilation

Heating of the heating point is not provided, since the available heat emissions from process equipment and pipelines are sufficient to heat the premises of the central heating station. Heating and ventilation of the central heating station are made in accordance with SNiP 2.04.05.-91y. Design parameters: outdoor air temperature tnv=-26°С; temperature of internal air tv = +5 °C. In the central heating room, natural supply and exhaust ventilation is provided, with an air exchange rate of 1. Air is supplied through louvered grilles 550x550 mm and 500x250 mm in size. Exhaust ventilation of the central heating station - through a deflector with a diameter of 270 mm. When the maximum temperature in the central heating room reaches plus 30°С, the supply fan ECW 504 T4 is switched on automatically. Sheet 110-362-5.8/08-PZ 13

Water supply and sewerage

This section of the project was developed in accordance with the following regulatory and technical documentation: - SNiP 2.04.01-85 "Internal water supply and sewerage of buildings"; - SNiP 3.05.01-85 “Organization, production and acceptance of work. Internal sanitary systems. Design decisions were made based on the requirements to ensure the supply of water of the required quality and parameters to the DHW system, make-up of the heating system. In accordance with the requirements for the quality of the consumed water and the composition of the effluents, the following systems are designed: - drinking water supply system - B1; - sewerage of conditionally clean effluents - K1.