The method of operation of a heat generating plant

 

The invention relates to the field of power engineering and can be used in boilers. The method of operation of a heat-generating plants, through which the steam generated in the steam boiler, send it to the consumer. Source water dearyou in vacuum deaerator, which in the deaerator served heated in the heater of a heating agent, the water accumulating in the boiler water and mineral impurities are removed from the boiler through the pipeline blowdown water. Blowdown water is used as the heating medium to the heater of a heating agent of the vacuum deaerator, and purge water after heater heating agent of the vacuum deaerator is used as a heating medium to the heater of the source water before the vacuum deaerator. The invention improves the efficiency of heat-generating plants. 1 Il.

The invention relates to a power system and can be used in boiler plants.

The known method of operation of heat-generating plants, through which the steam generated in the steam boiler, send it to the consumer, the source water dearyou in the deaerator, which in the deaerator served heated in the heater of a heating agent valota purge water disposed in the separator (see Delyagin, N. Heat-generating plants, the drawing and the description of him on page 401) the Disadvantage of this method is the reduced efficiency due to incomplete use of heat purge water and the necessity of applying for its utilization of special equipment - continuous blowdown separators.

The technical result achieved by the present invention is to improve efficiency in the heat generating unit for heat recovery from blowdown water without the use of special equipment.

To achieve this result, a method of operation of the heat generating installation, through which the steam generated in the steam boiler, send it to the consumer, the source water dearyou in the deaerator, which in the deaerator served heated in the heater of a heating agent, the water accumulating in the boiler water and mineral impurities are removed from the boiler through the pipeline blowdown water.

Feature of the proposed method is that the deaerator is made vacuum, purge water is used as the heating medium to the heater of a heating agent of the vacuum deaerator, and purge water after heater heating agent vacuum dear the Eden applicant's analysis of the prior art, including searching by the patent and scientific and technical sources, and identify sources that contain information about the equivalents of the claimed invention, has allowed to establish that the applicant had not discovered similar, characterized by symptoms that are identical to all the existing elements of the claimed invention. The definition from the list of identified unique prototype, as the most similar in essential features analogue, has identified a set of essential towards the technical result of the distinctive features set forth in the claims.

Therefore, the claimed invention meets the condition of "novelty."

To verify compliance of the claimed invention the term "inventive step", the applicant conducted an additional search of the known solutions to identify signs that match the distinctive features of the prototype of the features of the declared method of heat-generating plants. The search results showed that the claimed invention not apparent to the expert in the obvious way from the prior art because the prior art, a particular applicant identified the impact of the envisaged significant signs savlon is not provided by the addition of known means of any known part, attached to it according to certain rules to achieve a technical result, in respect of which it is the effect of such additions.

Therefore, the claimed invention meets the condition of "inventive step".

Information confirming the ability of the invention to provide the above technical result are as follows.

The drawing shows a diagram of the heat-generating plants, which realizes the proposed method.

Heat generating plant comprises a steam boiler 1 is connected to the steam pipe 2 and pipe blowdown water 3, the vacuum deaerator 4 with connected piping water source 5 and the water used as a heating agent 6. In the pipe 6 includes a heater of a heating agent 7, and in the pipeline 5 - source water heater 8. Heater heating agent 7 is connected via the heating medium to the pipeline blowdown water 3. The pipeline blowdown water after 9 heater heating agent 7 is connected via the heating medium to the heater water source 8. The tank 4 through the hot-water tank and a pump connected to the pipe network water 10.

The way work is isleuth purge water through the pipeline 3. The heat load of the heating and hot water provide is supplied to the consumer network water. Water leakage from heat supply make-up water, which dearyou in vacuum deaerator 4. In the deaerator serves 4 source water pipeline 5 and the heating agent through the pipeline 6, which prior to being fed into the tank 4 is heated in the heater 8 and 7, using as a heating medium blowdown water, which is served by pipelines 9 and 3.

The above data confirm that the implementation of the use of the claimed method the following cumulative conditions: - the claimed method of operation of the heat generating installation is intended for use in industry in the field of heat; for the inventive method of operation as it is described in the claims, confirmed the possibility of its implementation using the steps described in the application of tools and methods; - mode of operation of the heat generating installation embodying the claimed invention, it is able to achieve the desired technical result.

Therefore, the claimed invention meets the condition of "industrial applicability".

 

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FIELD: thermal engineering; thermal power stations.

SUBSTANCE: proposed operating process of thermal power station is as follows. Boiler-generated steam is conveyed to turbine wherefrom it is supplied to condenser for condensing it; full-flow condensate is delivered by means of condensate pump to low-pressure regenerative heaters and then to high-pressure deaerator; makeup water is deaerated in atmospheric-pressure deaerator and conveyed to full-flow condensate path, vented steam being discharged from atmospheric-pressure deaerator into atmosphere. Flowrate of vented steam discharged from atmospheric-pressure deaerator is regulated with respect to desired content of oxygen dissolved in mixed flow of makeup water and full-flow condensate beyond vacuum system of turbine unit, for instance downstream of low-pressure heater second along full-flow-condensate path.

EFFECT: enhanced economic efficiency and operating reliability of thermal power station.

1 cl, 1 dwg

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