SU1377418A1 - Low-potential complex of steam-turbine plant - Google Patents

Abstract

The invention relates to the power industry and allows to increase the efficiency of use of the reservoir-cooler (VO) by maintaining a predetermined ecological situation in it. Outputs 15 of the low-potential consumer 9 of the surface type and the unit 12 of the treatment plant through pipelines 16 and 14 are connected to BO 1. With such an effect, there is no change in the quality x-k in the water returned to the HE, except for a decrease in in turn, it helps to reduce the intensity of salt accumulation in HE by reducing the evaporation rate from the water surface. 1 il.

Description

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ten

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20

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The invention relates to energy and can be used in the technical water supply systems of steam turbines.

The purpose of the invention is to increase the efficiency of the use of the reservoir-cooler by maintaining a predetermined environmental situation in it.

The low-potential complex of a steam-turbine plant is depicted

The complex contains sequentially installed on the cooling medium reservoir-cooler 1, intake device 2, pump unit 3, heat exchanger 4 of a steam turbine unit (not shown) and distributor 5 of heated water, communicated by the discharge channel 6 with reservoir-cooler 1, and pipelines 7 and 8 - with low-potential consumers 9 and 10, respectively, of the surface and contact types. Output 11 of the low-potential consumer 10 of the contact type is connected to the unit 12 of the treatment plant, output 13 of which is through tion of the pipeline 14 communicates with a cooling-water reservoir 1 and the output 15 of the surface type niz.kopotentsialnogo consumer via conduit 16 also communicates with a cooling-water reservoir 1.

Heat exchangers, for example, biofactories and / or greenhouses, subsoil heating, and irrigation systems, industrial enterprises that use waste water as low-potential consumers 10 of the contact type can be used as low-potential consumers of the surface type 9. preheated water for process needs

In low potential consumers of the contact type 10, in addition to heat recovery, the utilization of salts, 50

Low-grade complex works as follows.

From the reservoir-cooler 1 chilled water using water intake30

five

40

45

The flow enters the distribution in which the heated water flows. One of the flow cooling circuit is heat 4, the discharge channel is escaped into the reservoir-cooling and the other flows are directed to wires 7 and 8 of low loads of consumers 9 and 10 according to surface and contact

From the distributor 5 through water 7 one of the flows under the water is supplied to the consumer 9, utilization of the low potential is carried out through a stack of heat exchangers, biofactories and / or greenhouses, by heating, after which the water through pipeline 1 is fed into the reservoir-cooling. the absence of contact, the heating of the medium with warm water of varying characteristics and does not occur except for the temperature.

Another flow of the heated distributor 5 through the pipe is directed to the consumer 10, water is used as talc, the waste and / or salts are produced by direct contact of the heated water with your medium. At the same time, the return waters of the technological process, for example, oro polluted with waste, are fed into the irrigation systems, fed to the purification unit 12, then returned to the cooling pond 1 in the conductive water,

Utilization of heat and crushed salts in the consumer will hardly be consumed due to irretrievable water in the process, which allows replacing the operation with forced lidding of the reservoir l 1, reducing the salt content of the latter, improving the condition of the heat exchanger 4, water from technical source

unit 2 and pumping equipment (not shown).

ten

15

20

25

, 50

thirty

five

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The flow enters the distributor 5, in which the heated water is divided into streams. One of the flows, the closing circuit of the cooling of the heat exchanger 4, is returned to the reservoir-cooler 1 via the discharge channel 6, and the other flows are directed through pipelines 7 and 8 to low-potential consumers 9 and 10, respectively, of surface and contact types.

From distributor 5 through conduit 7, one of the heated water flows is supplied to consumer 9, in which utilization of low-grade heat is produced through the wall in heat exchangers, for example, biofabriks and / or greenhouses, subsoil heating, and then cooled water is returned via conduit 16 to the cooling reservoir 1. At the same time, due to the absence of direct contact of the heated medium with warm water, the quality characteristics of the latter do not change except for a decrease in temperature.

Another stream of heated water from the distributor 5 through the pipeline 8 is directed to the consumer 10, where water is used as process water, heat and / or salts are recycled by direct contact of the heated water with the heated medium. At the same time, the water is sent to the irrigation system, after which the return water of the technological process, for example, irrigation contaminated with production waste, is fed to the treatment plant block 12, then the purified water is returned to the reservoir-cooler 1 via pipeline 14,

Heat utilization and removal of dissolved salts in the consumer only 10 are produced by irretrievable water consumption in the process, which allows replacing this operation with forced systematic blowing of the cooling reservoir 1, reducing the salt content in the latter’s water, improving the conditions of operation of the heat exchanger 4, Replenishing irretrievable water losses are produced from a technical source

gata 3 through the pressure pipeline serves to cool the heat exchanger 4, the heated water from which, by utilizing part of the heat of the heated water in consumers 9 and 10, helps to reduce the heat load on

reservoir-cooler 1, eliminating the danger of heating the latter, creating in it the necessary environmental conditions for the cultivation of one or another type of biological product. In addition, a decrease in the heat load on the reservoir-cooler 1 helps to reduce the intensity of salt accumulation in the latter by reducing the evaporation rate from the water surface,

In order to order the thermal and water-salt modes of operation of the cooler 1 by creating a predetermined environmental situation in the reservoir-cooler 1, the heat load and water consumption of consumers 9 and 10 are determined from

in the active zone of the reservoir-cooler 1 in the hottest period of the year, the maximum temperature for a given ecosystem and the rate of increment of the concentration of dissolved salts in the water of the cooling circuit will increase by values that provide the specified quality of cooling water for this type of heat exchanger 4 of a steam turbine plant or industrial enterprise, taking into account power source of technical water supply.

The use of the proposed complex allows to provide the specified temperature and salt conditions

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operation of the reservoir-cooler, 1, as a result of which stabilization of a given ecological balance in the latter is achieved while reducing the flow of make-up water from the water supply source.

Claims (1)

Invention Formula The low-tidal complex of a steam-turbine plant, containing a cooling reservoir-cooling device sequentially installed on a cooling medium, a heat exchanger of a steam-turbine installation, a heated medium distributor, communicated by a discharge channel with a cooler, and pipelines with low-potential consumers of surface and contact types, respectively, and a sewage treatment unit, connected at the input to the output of the low-potential consumer of the contact type, characterized in that, for the purpose of higher and utilization efficiency of the cooler by vodohranilischa- storing therein predetermined environmental conditions, vpsody low potential consumer type and surface treatment facilities unit through piping additionally installed communicated with the reservoir-ohladiteg Lemma.