Normative legal acts on the development of heat supply and water supply schemes
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| Federal Law No. 416-FZ of December 7, 2011 (as amended on December 25, 2018) “On Water Supply and Sanitation” | |||
| Federal Law No. 190-FZ of July 27, 2010 (as amended on July 29, 2018) “On Heat Supply” | |||
| Decree of the Government of the Russian Federation of February 22, 2012 No. 154 (as amended on March 16, 2019) "On the requirements for heat supply schemes, the procedure for their development and approval" | |||
| Decree of the Government of the Russian Federation of 05.09.2013 No. 782 (as amended of 05.31.2019) “On water supply and sanitation schemes” (together with the “Rules for the development and approval of water supply and sanitation schemes”, “Requirements for the maintenance of water supply and sanitation schemes”)” | |||
| Order of the Ministry of Construction of the Russian Federation of March 21, 2014 No. 110 / pr “On approval of the Procedure for monitoring the development and approval of water supply and sanitation schemes” | |||
| Order of the Ministry of Construction of the Russian Federation of August 05, 2014 No. 437 / pr “On approval of the Requirements for the technical inspection of centralized hot water supply, cold water supply and (or) sanitation systems, including the determination of indicators of the technical and economic state of water supply and water systems” | |||
| Decree of the Government of the Russian Federation of 08.08.2012 No. 808 (as amended on 05.22.2019) "On the organization of heat supply in the Russian Federation and on amendments to some acts of the Government of the Russian Federation" (together with the "Rules for the organization of heat supply in the Russian Federation")" | |||
| Order of Rostekhnadzor No. 48 dated February 12, 2016 (as amended on October 9, 2017) “On approval of the Administrative Regulations for the Federal Environmental, Industrial and Nuclear Supervision Service to perform the state function of monitoring and supervising compliance with industrial safety requirements in the design, construction, operation , conservation and liquidation of hazardous production facilities, manufacture, installation, adjustment, maintenance and repair of technical devices used at hazardous production facilities, transportation of hazardous substances at hazardous production facilities " | |||
| Order of the Ministry of Construction of the Russian Federation of August 21, 2015 No. 606 / pr “On approval of the Methodology for the integrated determination of indicators of the technical and economic state of heat supply systems (with the exception of heat-consuming installations of consumers of thermal energy, heat carrier, as well as sources of thermal energy operating in the mode of combined generation of electric and thermal energy ), including indicators of physical wear and energy efficiency of heat supply facilities, and the Procedure for monitoring such indicators” |
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Decree of the Government of the Russian Federation of February 22, 2012 154 ed. from 16.03.2019
"On the requirements for heat supply schemes, the procedure for their development and approval"
This collection of NTD is intended for informational purposes only, without commercial use. The texts of the documents collected here may become outdated, be replaced by new ones, or be canceled.
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HEAT NETWORKS
Pipelines are divided into main pipelines (from the source to the area of heat consumption) and distribution pipelines (from the main pipelines to consumers), which are connected through sectioning chambers (SC). Main and distribution networks at D
In emergency conditions, it is allowed to reduce the heat supply to 70% of the total estimated consumption (maximum hourly for heating and ventilation and average hourly for hot water supply). For enterprises in which interruptions in the supply of heat are not allowed, duplicated or ring schemes of heat networks are provided. Duration of liquidation of accidents on underground heat pipelines D
Single line heating network. On fig. 4.1 shows a schematic diagram of a single-line two-pipe water heating network from a 500 MW CHP plant with a thermal power of 2000 MJ / s.
The range of the heating network is 15 km. Network water is supplied through two two-pipe transit mains (each main is shown in the diagram by one line) 10 km long. The diameter of the lines at the outlet from the CHP is 1200 mm. As water is distributed to associated branches, the diameters of the main lines decrease. Network water is supplied to the final areas of heat consumption through four mains D- 500 mm. Blocking connections between highways, as well as redundant pumping substations, are installed only on lines D> 800 mm (to increase the throughput of interlocking links).
Rice. 4.1. Scheme of a two-pipe heat network with two mains: T1 - CHP collector; 2 - backbone network; 3 - distribution network;
4 - sectioning chamber; 5 - sectional valve; 6 - pump; 7-lock connection
Sectional valves on the main lines are installed after 2 km. Interlock connections and sectional valves are distributed so that in case of an accident on any section of the highway D> 800 mm provides heat supply to all subscribers connected to the heating network. Heat supply to consumers is disrupted only in case of accidents on the lines D = 700 mm or less.
dead end scheme the heating network is used with diameters of pipelines extending from the heat source by 700 mm or less (Fig. 4.2). The dead-end scheme is characterized by a decrease in the thermal load and, accordingly, a decrease in the diameters of pipelines 1 as they move away from the heat source. At the same time, the composition of structures and equipment on thermal networks is simplified. To increase the reliability of providing thermal energy to consumers 2, jumpers 3 are arranged between adjacent mains. Jumpers provide an uninterrupted supply of heat for at least 70% of the calculated consumption, they are provided in cases where the thermal power of the main is 350 MW or more.
Rice. 4.2. Dead-end (radial) scheme of the heat network: 1 — pipeline; 2 - consumer; 3 — jumper; 4 - boiler room; 5 - control and distribution point
Jumpers are also mounted between dead-end circuits when the area is supplied from several heat sources: CHPP, boiler houses 4. At the same time, in the summer, boiler houses operating with a minimum load are turned off, which makes it possible to repair non-operating boiler houses and heating networks. On large branches provide control and distribution points (KRP) 5.
Ring diagram heating networks (Fig. 4.3) will be used in large cities and for the heat supply of enterprises that do not allow a break in the supply of heat. The ring main 1 is supplied with heat from four thermal power plants. Consumers 2 receive heat from central heating points 6 connected to the ring main in a dead-end scheme; large branches are provided with KRP 5.
Rice. 4.3. Ring diagram of the heat network:
6 — central heating point; 7 - industrial enterprise; other designations
the same as in Fig. 4.2
Industrial enterprises 7 are also connected according to a dead-end scheme through the PDC.The ring circuit has significant advantages compared to the dead-end one: the reliability of heat supply increases; less total reserve capacity of boiler equipment is required; capital costs for the construction of heat sources are reduced.
Schemes of thermal networks.
dead end:
advantages (simple circuit, small
investment), disadvantages (low
reliability, because the consumer receives
thermal en. from one direction only
and in the event of an accident it is completely disconnected from
heating systems).
WITH
hema:
WITH
in order to improve reliability, all vehicles share
into separate sections with regulatory
gate valves to reduce elimination
accidents.
Ring:
dignity
(higher reliability as consumers
can receive thermal en. from two
directions. To the ring network can
connect multiple sources
thermal en., which increases reliability.
Possibility to use thermal en.
sources working on different types
fuel). Disadvantages (increased
investment by 20-30%. More complex
regulation of thermal loads).
About holding public hearings
The Administration of the city of Yekaterinburg notifies of holding public hearings on the draft updated for 2020 heat supply scheme for the municipality "city of Yekaterinburg" until 2030. Public hearings will be held on December 2, 2019 at 14:00 at the address: Yekaterinburg, Lenina Avenue, 24a, room 316. Registration of participants from 13:00 to 14:00. On November 29, 2019, apply to the Organizing Committee at the address: Yekaterinburg, st. Malysheva, 31a, k. 306. The application is drawn up in a simple written form indicating proposals and recommendations exclusively on issues submitted for public hearings.
