SU1469190A1 - Power-and-heat generating system - Google Patents

Abstract

The invention relates to a power system and m. used in heating systems of industrial and civil objects. The purpose of the invention is to increase efficiency and effectiveness. The heater 1 of the network water is connected to the pipelines (TP) 9 and 10 of the direct and reverse network water through the heated medium, and through the heating medium to the TP 2 of the selected steam of the cogeneration turbine 3. Heat consumers 11, 12 and 13 are connected to the TP 9 and 10 , the consumer /, 3 / i / Pg- -SP-SPSPSP nososogD7 Yu 13 is made in the form of at least two sections (C) 14 and 15 of the surface heater connected in a heating environment of the TP 9 in series along the air flow. C 17, consisting of successively placed along the air line splinter device 18 and oro The heating surface (P) 19 is placed in a single casing 16 between C 14 and 15. A collection tank 20 with irrigated liquid with P 21 placed in it is placed in a casing under P 19 and connected by line 22 to a pump 23 with a device 18 Input P 21 through the heating medium is connected to TP 9, and its output and both outputs C 14 and 15 to input P 19, and the output of the latter to TP 10. Moisture separator 28 is placed in the casing between P 19 and C 17, and make-up line 29 connected to the tank 20. This implementation allows to reduce the temperature of the return network water, regulate the relative humidity of the air flow, ivat krupiodispersnuyu moisture at the exit of air from 17 and to compensate for loss of the scrubbing liquid. 2 hp f-ly, 1 ill. (L 4a O5 i2 x f

Description

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The invention relates to heat and power engineering and can be used in heating systems of industrial and civil objects.

The aim of the invention is to improve economy and efficiency.

The drawing shows the scheme of the proposed heating system.

The heat supply system contains the water supply network | 1) connected to the heating pipe 2 of the heating steam turbine 3 through the heating medium, which is connected to the boiler 5 at the output of the fresh steam and to the condenser at the end of the exhaust steam 6, connected through a condensate pump-7 with a regenerative heater 8.

The heater 1 of the main water in the heated medium is connected to pipelines 9 and 10 of the direct and reverse network water, respectively, to which consumers 11–13 are connected, for example, in the form of hot water supply and heating systems. One of the heat consumers 13, for example, the air heater of the air conditioning or heating system, is made up of at least two sections 14 and 15 of the surface heater, in series with the air flow. connected via a heating medium (network water) to the pipeline 9 direct network water.

The system also contains an additional section 17 placed along the air course between sections 14 and 15 of the surface heater and enclosed with them into a single casing 16, consisting of the spray device 18 and the irrigated heating surface 19, as well as placed in the casing 16 under the irrigated heating surface 19 of the tank 20 of the discharge of irrigating liquid with the liquid heating surface 21 placed in it. The tank 20 is connected to the spray device 18 via line 22 with a pump 23 placed therein. The inlet through the network water of the heating surface 21 is connected by pipeline 24 to the pipeline 9 of direct network water, and its output and both outputs of sections 14 and 15 of the surface heater are connected by pipelines 25 -27 to the irrigated entrance

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the heating surface 19, and the output of the latter to the pipeline 10 reverse network water.

The system can also be equipped with a moisture separator 28 placed in the casing 16 between the irrigated surface 19 and the downstream heater section 17, and connected to the feed tank 20 of the feed line 29. On the pipeline 10 reverse network water is placed the network pump 30.

The heating system works as follows.

Superheated steam produced by the boiler 5 enters the high pressure cylinder of the turbine 3, after which part of it is fed to the low pressure cylinder, and the other part enters through line 2 of the selected steam to the network heater 1, from which condensate enters the regenerative heater 8. After the low pressure cylinder the turbine 3, the steam enters the condenser 6, from which the condensate pump 7 is fed to the regenerative heater 8 and returned to the boiler.

Direct mains water after mains preheater 1 is supplied to consumers 11–13 (hot water and heating systems). Consumer 13 heat (air heater of the ventilation system) direct network water is supplied in three streams. The first of them is supplied to section 14 in a continuous manner with respect to heated outside air, and the second stream is fed through conduit 24 to the heating surface 21 of the irrigating liquid placed in the collection tank, which allows maintaining its temperature at 20-. The third stream enters section 15 of countercurrent heated air. At the outlet of all three stages, the network water of three streams is connected and fed to the input of the irrigated surface 19, the heat transfer coefficient of which is higher than that of the heat-exchange surfaces of sections 14 and 15. Cooled to 15-20 ° C, the network water after surface 19 enters 10, the return water line and the network pump 30 are supplied for heating to the preheater 1.

The irrigation system of section 17, consisting of a collection tank 20, a pump 22 main line 22, and a spray unit

Function 19 allows the temperature of the return supply water to be reduced and the relative humidity of the air flow to be regulated. The moisture separator 28 captures the coarse moisture at the air outlet from the air section 17 and thereby ensures the reliability of the subsequent section 15 and the unjustified consumption of the irrigation liquid, which is compensated for by the loss of a third-party source (not shown) via the make-up line 29.

Lowering the temperature of the return mains water causes an increase in the load of low-pressure selections of turbine units, which leads to additional power generation at heating plants.

Claims (3)

1. A heat supply system containing a network water heater, connected through a heating medium to the pipeline of the selected steam heating turbine, and heated to the pipelines of direct and reverse network water, and heat consumers connected to the latter, one of which is made in series air at least two sections of the surface heater connected at the inlet to the direct supply water pipeline five 0 five 0 five 90 and parallel with each other, characterized in that, in order to increase efficiency and efficiency, the system is equipped with an additional section placed between sections of the surface heater in a single casing, consisting of a spraying device sequentially arranged along the air course and an irrigated heating surface, as well as in the casing under the last collection tank of irrigation liquid with the heating surface placed in it, the collection tank being connected to the spray device by a main line to the pump; heating the heating medium entrance surface scrubbing liquid conduit connected to the forward water network, and its output both the output surface heating sections - entry to irrigated the heating surface, and the output of the latter - to the pipe network water. 2. The system according to claim 1, characterized in that it is provided with a moisture separator placed in the casing between the surface to be irrigated and the downstream section of the surface heater that is airborne. 3. The system according to claims 1 and 2, that is, it is equipped with a feed line connected to the irrigation liquid collection tank.