SU1469189A1 - Central heat supply system - Google Patents

Abstract

The invention relates to power engineering and allows to increase the economy and range of heat transport, as well as to simplify the design of the system. A steam generator (PG) 3 with a pump 4 and a peak source of heat 5 are installed on the supply line (M) 1 of the supply water. PG 6 with a pump 7 is installed on the return M 2 of the supply water. M 2 in front of the PG 6 along the line of the supply water are connected by a mixing line 8 to M 1 between the PG 3 and the source 5. The steam compressor 9 with the electric drive 10 and / or turbine drive 11 is equipped with capacitors 12 and 13 contact types with condensate pumps (L

Description

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mi 14 and 15 and connected to PG 6, Capacitors 12 and 13 are included in the mixing line in series along the supply water from M 2 to M 1. This embodiment allows consumers to more fully utilize the potential of network water, reducing the operation of steam compressor drives, reducing heat exchange surface 9

in the case of heat supply from cogeneration turbines, it allows to increase the production of electricity for heat consumption due to a decrease in the temperature of the return network water. The implementation of the condenser 12 in one piece with the compressor 9 allows to simplify the design. 1 hp f-ly, 1 ill.

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The invention relates to power engineering, in particular to district heating systems, including long-distance heat transport systems.

The aim of the invention is to increase the economy and range of transport, as well as simplify the design of the system.

The drawing shows the scheme of the proposed installation.

The installation contains the main source of heat from the supply line 1 and the return line 2 of the network water. On the supply line 1 of the network water, a steam generator 3 is installed, made in the form of a network water extender, with a pump 4 after it and a peak heat source 5 connected parallel to the highway. On the return line 2 of the supply water, a steam generator 6 is installed, made in the form of a network return flow extender, with a pump 7 after it. The return line 2 in front of the steam generator 6 along the network water is connected by the mixing line 8 to the supply line 1 between the steam generator 3 and the peak heat source 5. The system is also equipped with a steam compressor 9 with an electric drive 10 and / or a turbo drive 11. In this case, the steam compressor 9 and turbo drive 11 are equipped with contact type condensers 12 and 13 with condensate pumps 14 and 15. The condensers 12 and 13 with pumps are included in line 8 mixing in series along the flow of water from the return line 2 to the straight line 1. The steam compressor 9 is connected to the steam generator 6

on the return line of the network water, and the turbine 11 is connected to the steam generator 3 on the supply line. The condenser 12 of the steam compressor can be made integral with the condenser 13 of the turbo drive.

The system works as follows.

The network water with a given temperature is supplied from the main source of heat through the supply line 1 to the district of heat supply, where it expands in the steam generator 3 to produce secondary boiling. The steam from the steam generator 3 is directed to the turbo drive 11, where it expands to do useful work. The exhaust steam from the turbine actuator 1I enters the condensate of p13, made contact, heats a part of the return network water coming from the return line 2 through the mixing line 8 to the supply line 1. A part of the heated return network water is mixed with the direct network water supplied by the pump 4 from the steam generator 3. The resulting flow is heated, if necessary, in. peak heat source 5 and supplied to consumers. From consumers, the cooled return network water is supplied via line 2 to the steam generator 6, in which it expands to form secondary boiling. The steam from the steam generator 6 enters the steam compressor 9, where it is compressed due to the operation of the electric drive 10 and / or Turbo drive 11. When compressed in the compressor, the steam temperature rises and

further condensing it in the contact condenser 12, it heats a part of the return network water coming through the mixing line 8 to the condenser 13 of the turbo drive for additional heating and then to the direct line 1 of the network water. From the steam generator 6, the flow of return mains water, further cooled in it, is directed by the pump 7 to the main source of heat. In the case of the condenser 12, the steam compressor is integrated with the condenser

 13, the turbo drive portion of the return network water is heated in a single contact compressor due to condensation of the steam flows from the compressor 9 and the turbo drive 11.

The application of the proposed system will allow to increase the range of transport of heat and efficiency of work due to more complete use of consumers, the potential of network water, reduction in the operation of steam compressor drives, reduction of heat exchange. surfaces, and in the case of heat supply from cogeneration turbines, will increase the production of electricity at heat consumption due to a decrease in the return network water temperature. In addition, the implementation of a steam compressor condenser along with a turbo drive compressor allows to simplify the design of the proposed system.

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Claims (2)

Claims 1. Centralized system heat source, containing main and peak heat sources, supply line with steam generator, return line, steam compressor with electric drive and / or turbo drive with condenser, and the turbo drive is connected to the steam generator, which is designed to improve efficiency and range heat transport, it is equipped with a steam generator on the return line, a mixing line, a condenser of a contact type steam compressor with a condensate pump, the steam generator being connected to the return line, the steam compressor is connected to the return steam generator, the return line before the steam generator along the supply water is additionally connected by a mixing line to the supply line between the steam generator and the peak heat source, the steam compressor condenser and the turbo-drive condenser are connected in series to the mixing line along the supply water from the supply line, while the capacitor of the turbo drive is made of contact and has a condensate pump. 2. The system of claim 1, which is intended to simplify the design, the steam compressor condenser is integral with the turbo drive condenser.