CN103836640B - The boiler feeds self-checking device of steam generating equipment - Google Patents
The boiler feeds self-checking device of steam generating equipment Download PDFInfo
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- CN103836640B CN103836640B CN201410107602.7A CN201410107602A CN103836640B CN 103836640 B CN103836640 B CN 103836640B CN 201410107602 A CN201410107602 A CN 201410107602A CN 103836640 B CN103836640 B CN 103836640B
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- burner hearth
- industrial computer
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Abstract
The present invention relates to a kind of boiler feeds self-checking device of steam generating equipment, comprise steam boiler, generator and for driving the steam turbine of generator, described steam boiler comprises burner hearth and drum, described drum is connected with a steam pipeline, it is characterized in that: the outlet of described steam pipeline is connected with the air inlet of steam turbine, the exhaust outlet of described steam turbine is connected with drum through steam return duct, described burner hearth side is provided with a charging aperture, described charging aperture is provided with one in order to coal charge to be independently delivered to the horizontal auger connecting gear in burner hearth, described horizontal auger connecting gear is driven by a drive motors, the impeller of described steam turbine is provided with a velocity sensor, described velocity sensor is connected with the inlet circuit of an industrial computer, described drive motors is connected with the circuit of output terminal of industrial computer through a frequency converter.Structure of the present invention is simple, and it is convenient to manipulate, and wheel speed can be utilized automatically to regulate the steam supply amount of boiler, thus the self-adaptative adjustment function of implement device.
Description
Technical field
The present invention relates to a kind of boiler feeds self-checking device of steam generating equipment, be applied to boiler power generation operation.
Background technology
Existing boiler major part in order to produce steam, with satisfied heat in requisition for etc., also have by steam in order to generating simultaneously; And at present in order to the boiler plant of generating, with the cohesive process of TRT, often structure comparison is fixed, and effectively in real time cannot regulate Boiler Steam output according to power generation needs, causes equipment working effect not good; In addition, existing equipment, in steam reflux course, there will be the perturbation action to electric generating set rotor, and impact generating effect.Therefore, are objects that the present invention studies for the problems referred to above.
Summary of the invention
In view of the deficiencies in the prior art, the invention provides a kind of boiler feeds self-checking device of steam generating equipment, when contributing to solving existing boiler applications in power field, structure is fixed, according to problems such as power generation needs self-adjusting steam supply amount, cannot can also solve the impeller occurred in existing steam reflux course and be subject to perturbed problem.
Technical program of the present invention lies in:
A kind of boiler feeds self-checking device of steam generating equipment, comprise steam boiler, generator and for driving the steam turbine of generator, described steam boiler comprises burner hearth and drum, described drum is connected with a steam pipeline, it is characterized in that: the outlet of described steam pipeline is connected with the air inlet of steam turbine, the exhaust outlet of described steam turbine is connected with drum through steam return duct, described burner hearth side is provided with a charging aperture, described charging aperture is provided with one in order to coal charge to be independently delivered to the horizontal auger connecting gear in burner hearth, described horizontal auger connecting gear is driven by a drive motors, the impeller of described steam turbine is provided with a velocity sensor, described velocity sensor is connected with the inlet circuit of an industrial computer, described drive motors is connected with the circuit of output terminal of industrial computer through a frequency converter.
Described boiler side is also provided with a coal bunker, the feed opening of described coal bunker and the input UNICOM of horizontal auger connecting gear, the output of described horizontal auger connecting gear is connected with an angled channel, described angled channel and charging aperture UNICOM, drop in burner hearth by relying on deadweight after angled channel in order to coal charge.
Described burner hearth side is also provided with a natural gas supply pipe, and described natural gas supply pipe is provided with an automatically controlled flow control valve, and described automatically controlled flow control valve is connected with the circuit of output terminal of industrial computer.
Described steam return duct is provided with the check valve of a control air flow direction, and the flow direction of described check valve is towards steam boiler.
The invention has the advantages that: structure of the present invention is simple, and it is convenient to manipulate, and wheel speed can be utilized automatically to regulate the steam supply amount of boiler, thus the self-adaptative adjustment function of implement device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
With reference to figure 1, the present invention relates to a kind of boiler feeds self-checking device of steam generating equipment, comprise steam boiler 1, generator 2 and for driving the steam turbine 4 of generator, described steam boiler comprises burner hearth 1-1 and drum 1-2, described drum is connected with a steam pipeline 5, it is characterized in that: the outlet of described steam pipeline is connected with the air inlet of steam turbine, the exhaust outlet of described steam turbine 4 is connected with drum 1-2 through steam return duct 6, described burner hearth side is provided with a charging aperture, described charging aperture is provided with one in order to coal charge to be independently delivered to the horizontal auger connecting gear in burner hearth, described horizontal auger connecting gear is driven by a drive motors, the impeller 3 of described steam turbine 4 is provided with a velocity sensor 10, described velocity sensor is connected with the inlet circuit of an industrial computer, described drive motors 9 is connected with the circuit of output terminal of industrial computer through a frequency converter.
During work, steam is introduced by steam turbine, and impacts impeller, makes wheel rotation, and then drive electrical generators work.
Above-mentioned burner hearth 1-1 side is provided with a charging aperture 7, and described charging aperture is provided with one in order to coal charge to be independently delivered to the horizontal auger connecting gear 8 in burner hearth, and described horizontal auger connecting gear is driven by a drive motors 9.
Above-mentioned impeller 3 is provided with a velocity sensor 10, and described velocity sensor 10 is connected with the inlet circuit of an industrial computer 11, and described motor 9 is connected with the circuit of output terminal of industrial computer 11 through a frequency converter 12.Negotiation speed sensor Real-Time Monitoring wheel speed, and threshold value set in this rotating speed and industrial computer is compared, when find rotating speed is too low cannot meet power generation needs time, regulate motor accelerated service by industrial computer, frequency converter, and then make horizontal auger connecting gear can to the more chargings of burner hearth; And when rotating speed is too fast, also can turn down charging rate, thus realize autonomous feeding adjustment.
In order to better meet above-mentioned fuel requirements, a coal bunker 17 is also provided with at above-mentioned boiler side, the feed opening of described coal bunker and the input UNICOM of horizontal auger connecting gear 8, the output of described horizontal auger connecting gear 8 is connected with an angled channel 13, described angled channel 13 and charging aperture 7 UNICOM, drop in burner hearth by relying on deadweight after angled channel in order to coal charge.
In order to meet the environmental requirement of boiler zones of different, a natural gas supply pipe 14 can be also provided with at above-mentioned burner hearth side, come heating barrel by combustion of natural gas, described natural gas supply pipe 14 is provided with an automatically controlled flow control valve 15, described automatically controlled flow control valve 15 is connected with the circuit of output terminal of industrial computer 11, utilize signals of rotational speed sensor to drive the real-time adjust flux control valve of industrial computer, make it in burner hearth, supply the different gas quantity needed.
Above-mentioned steam return duct 6 is provided with the check valve 16 of a control air flow direction, the flow direction of described check valve is towards steam boiler, arranged by check valve, prevent the steam of steam boiler from blowing back into impeller and affecting rotor turns, in time the steam of working water in steam return duct can also be sent back to steam boiler simultaneously, reduce the wasting of resources, energy-saving and emission-reduction.
Claims (1)
1. the boiler feeds self-checking device of a steam generating equipment, comprise steam boiler, generator and for driving the steam turbine of generator, described steam boiler comprises burner hearth and drum, described drum is connected with a steam pipeline, it is characterized in that: the outlet of described steam pipeline is connected with the air inlet of steam turbine, the exhaust outlet of described steam turbine is connected with drum through steam return duct, described burner hearth side is provided with a charging aperture, described charging aperture is provided with one in order to coal charge to be independently delivered to the horizontal auger connecting gear in burner hearth, described horizontal auger connecting gear is driven by a drive motors, the impeller of described steam turbine is provided with a velocity sensor, described velocity sensor is connected with the inlet circuit of an industrial computer, described drive motors is connected with the circuit of output terminal of industrial computer through a frequency converter, described boiler side is also provided with a coal bunker, the feed opening of described coal bunker and the input UNICOM of horizontal auger connecting gear, the output of described horizontal auger connecting gear is connected with an angled channel, described angled channel and charging aperture UNICOM, drop in burner hearth in order to coal charge by relying on deadweight after angled channel, described burner hearth side is also provided with a natural gas supply pipe, described natural gas supply pipe is provided with an automatically controlled flow control valve, described automatically controlled flow control valve is connected with the circuit of output terminal of industrial computer, described steam return duct is provided with the check valve of a control air flow direction, the flow direction of described check valve is towards steam boiler, during work, steam is introduced by steam turbine, and impacts impeller, make wheel rotation, and then drive electrical generators work, Negotiation speed sensor Real-Time Monitoring wheel speed, and threshold value set in this rotating speed and industrial computer is compared, when find rotating speed is too low cannot meet power generation needs time, regulate motor accelerated service by industrial computer, frequency converter, and then make horizontal auger connecting gear can to the more chargings of burner hearth, and when rotating speed is too fast, turn down charging rate, thus realize autonomous feeding adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107602.7A CN103836640B (en) | 2014-03-22 | 2014-03-22 | The boiler feeds self-checking device of steam generating equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107602.7A CN103836640B (en) | 2014-03-22 | 2014-03-22 | The boiler feeds self-checking device of steam generating equipment |
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| Publication Number | Publication Date |
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| CN103836640A CN103836640A (en) | 2014-06-04 |
| CN103836640B true CN103836640B (en) | 2016-04-20 |
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| CN201410107602.7A Expired - Fee Related CN103836640B (en) | 2014-03-22 | 2014-03-22 | The boiler feeds self-checking device of steam generating equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109519955A (en) * | 2018-12-03 | 2019-03-26 | 中国华电科工集团有限公司 | Coal-fired power plant B of Unit IM system |
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| CN101431310A (en) * | 2008-08-18 | 2009-05-13 | 天津市电力公司 | Coordination control method for circulating fluidized bed generator set |
| CN101446807A (en) * | 2008-08-15 | 2009-06-03 | 中国电力科学研究院 | Realization method for heat-engine plant speed regulating system model in power system simulation |
| CN101922317A (en) * | 2009-06-09 | 2010-12-22 | 上海电气集团股份有限公司 | Direct energy balance and coordination control system for supercritical thermal power generating unit |
| CN202675335U (en) * | 2012-06-07 | 2013-01-16 | 山东亚太森博浆纸有限公司 | Biomass fuel conveying and distributing system |
| CN102953775A (en) * | 2011-08-23 | 2013-03-06 | 上海漕泾热电有限责任公司 | Automatic power generation control system based on gas-steam combined heat and power supply unit |
| CN203837013U (en) * | 2014-03-22 | 2014-09-17 | 林启东 | Automatic boiler feeding adjustment device for steam electric power equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8499561B2 (en) * | 2009-09-08 | 2013-08-06 | General Electric Company | Method and apparatus for controlling moisture separator reheaters |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101446807A (en) * | 2008-08-15 | 2009-06-03 | 中国电力科学研究院 | Realization method for heat-engine plant speed regulating system model in power system simulation |
| CN101431310A (en) * | 2008-08-18 | 2009-05-13 | 天津市电力公司 | Coordination control method for circulating fluidized bed generator set |
| CN101922317A (en) * | 2009-06-09 | 2010-12-22 | 上海电气集团股份有限公司 | Direct energy balance and coordination control system for supercritical thermal power generating unit |
| CN102953775A (en) * | 2011-08-23 | 2013-03-06 | 上海漕泾热电有限责任公司 | Automatic power generation control system based on gas-steam combined heat and power supply unit |
| CN202675335U (en) * | 2012-06-07 | 2013-01-16 | 山东亚太森博浆纸有限公司 | Biomass fuel conveying and distributing system |
| CN203837013U (en) * | 2014-03-22 | 2014-09-17 | 林启东 | Automatic boiler feeding adjustment device for steam electric power equipment |
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