CN107313814B - A kind of can be the coal-fired mud power plant system and method for condenser Reduction of Students' Study Load - Google Patents
A kind of can be the coal-fired mud power plant system and method for condenser Reduction of Students' Study Load Download PDFInfo
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- CN107313814B CN107313814B CN201710491125.2A CN201710491125A CN107313814B CN 107313814 B CN107313814 B CN 107313814B CN 201710491125 A CN201710491125 A CN 201710491125A CN 107313814 B CN107313814 B CN 107313814B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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Abstract
The invention discloses coal-fired mud power plant systems and method that a kind of energy is condenser Reduction of Students' Study Load, Turbo-generator Set is pure condensate unit, including middle-pressure steam turbine, medium pressure steam turbine is connect with generator, the blow-off line of medium pressure steam turbine is connect with condenser, while a plurality of branch in parallel, and every branch road is equipped with low-pressure turbine, the low-pressure turbine is connect with low voltage generator, and the exhaust steam end of all low-pressure turbines is connect with oxygen-eliminating device.This invention ensures that the steady load of unit, the ladder for realizing energy is utilized, that is, can provide low pressure station service, and can reduce condenser burden.
Description
Technical field
The present invention relates to coal-fired mud power plant system field more particularly to a kind of combustion electricity generation by coal sludge that can be lightened the burden for condenser
Factory's system and method.
Background technique
In the production process in thermal power plant, according to the difference of the pressure and temperature of required steam, steam is divided into super face
Boundary, subcritical, super-pressure, high pressure, middle pressure, low pressure.
Steam used in the Steam Turbine of general factory is high temperature and high pressure steam and two kinds of medium pressure steam, wherein high
Warm high steam is directly generated by burning sludge with circulating fluidized-bed boiler, medium pressure steam respectively by back pressure unit steam discharge, subtract
Warm decompressor and medium temperature and medium pressure boiler generate jointly.In addition to back pressure generating set, also possess pure condensate and extraction condensing type turbine generator
Unit is medium pressure steam into vapour, and pumping/steam discharge is low-pressure steam, and wherein steam extraction is delivered to each use through low-pressure steam pipeline
For its use, remaining steam discharge, which then enters after condenser is cooled to condensed water, to be re-used at family.In production usually, condenser
Cooling cycle water lines due to fouling blockage, will cause condenser efficiency and be lower, and night outer net steam consumption reduce, make to take out
Vapour amount is reduced, so that the quantity of steam for causing entry into condenser increases, to make condenser, the load becomes large.When condenser can not be timely
The phenomenon that when steam discharge is cooled to condensed water and is drained, just will affect unit load, causing unit load down.
In production before, recirculated water dosing scale removal is usually used, compressor emergency shutdown dredges the method for condenser to improve
Condenser efficiency, but dosing scale removal effect is not significant, lasting, and shutting down dredging must carry out again in turn(a)round, so in order to guarantee
Unit load needs a kind of system that can reduce condenser burden.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems, and providing a kind of to be the combustion electricity generation by coal sludge of condenser Reduction of Students' Study Load
Factory's system and method ensure that the steady load of unit, and the ladder for realizing energy utilizes, that is, can provide low pressure station service, again
It can reduce condenser burden.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of can be the coal-fired mud power plant system of condenser Reduction of Students' Study Load, and Turbo-generator Set is pure condensate unit, including middle pressure
Steam turbine, medium pressure steam turbine are connect with generator, and the blow-off line of medium pressure steam turbine is connect with condenser, while simultaneously
Join a plurality of branch, every branch road is equipped with low-pressure turbine, and the low-pressure turbine is connect with low voltage generator, all low pressure
The exhaust steam end of steam turbine is connect with oxygen-eliminating device.
Including middle-pressure steam turbine, medium pressure steam turbine is connect with generator, the blow-off line of medium pressure steam turbine with
Condenser connection, the extraction line of medium pressure steam turbine a plurality of branch in parallel, every branch road is equipped with low-pressure turbine, described
Low-pressure turbine is connect with low voltage generator, and the exhaust steam end of all low-pressure turbines is connect with oxygen-eliminating device.
The blow-off line of medium pressure steam turbine connects a main branch, and a plurality of branch in parallel in main branch is described
Main branch is equipped with blow-off line branch electrically operated gate branch electrically operated gate.
The extraction line of medium pressure steam turbine connects a main branch, and a plurality of branch in parallel in main branch is described
Main branch is equipped with steam extraction branch electrically operated gate.
Every branch road is also in series with gate valve and electric control valve.
The low voltage generator and low-pressure turbine are installed at zero meter of the generator.
A kind of can be the working method of the coal-fired mud power plant system of condenser Reduction of Students' Study Load, and Turbo-generator Set is to take out solidifying machine
Group, comprising:
The steam of middle-pressure steam turbine is introduced on the low-pressure turbine being installed at zero meter of generator, and will be generated electricity in low pressure
Steam condensate after machine completes passes through pipeline to oxygen-eliminating device, and realization recycles；
When night steam extraction amount be greatly decreased or condenser efficiency decline when, utilize extraction steam extraction push low pressure steamer hair
Motor operation acting reduces the work load of condenser to reduce the steam amount into condenser, improves vacuum degree to mention
High unit efficiency.
It further include that the electricity that low voltage generator issues is directly incorporated into low pressure station-service distribution section, provides electricity for station-service subsidiary engine
Amount.
A kind of can be the working method of the coal-fired mud power plant system of condenser Reduction of Students' Study Load, and Turbo-generator Set is pure condensate machine
Group, comprising:
The steam of middle-pressure steam turbine is introduced on the low-pressure turbine being installed at zero meter of generator, and will be generated electricity in low pressure
Steam condensate after machine completes passes through pipeline to oxygen-eliminating device, and realization recycles；
When night steam extraction amount be greatly decreased or condenser efficiency decline when, utilize extraction steam discharge push low pressure steamer hair
Motor operation acting reduces the work load of condenser to reduce the steam amount into condenser, improves vacuum degree to mention
High unit efficiency.
It further include that the electricity that low voltage generator issues is directly incorporated into low pressure station-service distribution section, provides electricity for station-service subsidiary engine
Amount.
The beneficial effects of the present invention are:
By after extraction and condensing unit steam extraction branch electrically operated gate or on pure condensate unit blow-off line, increasing by a bypass jet chimney
And in one to multiple low pressure Turbo-generator Set of zero meter of the generator of middle-pressure steam turbine installation, the quantity of steam for entering condenser is reduced
To guarantee condenser efficiency, and realize the utilization again of low-pressure steam.
This invention ensures that the steady load of unit, the ladder for realizing energy is utilized, that is, can provide low pressure station service, again
It can reduce condenser burden.
Detailed description of the invention
Fig. 1 is the system construction drawing of extraction and condensing unit；
Fig. 2 is the system construction drawing of pure condensate unit；
Wherein, 1 middle-pressure steam turbine, 2 generators, 3 blow-off lines, 4 condensers, 5 extraction lines, 6 steam extraction branch electrically operated gates,
7 gate valves, 8 electric control valves, 9 low voltage generators, 10 low-pressure turbines, 11 oxygen-eliminating devices, 12. blow-off line branch electrically operated gates.
Specific embodiment:
The present invention will be further described with embodiment with reference to the accompanying drawing:
As shown in Figure 1, a kind of can be the coal-fired mud power plant system of condenser Reduction of Students' Study Load, Turbo-generator Set is to take out solidifying machine
Group, including middle-pressure steam turbine 1, medium pressure steam turbine 1 are connect with generator 2, the blow-off line 3 of medium pressure steam turbine 1 with
Condenser 4 connects, and the extraction line 5 of medium pressure steam turbine 1 a plurality of branch in parallel, every branch road is equipped with low-pressure turbine
10, the low-pressure turbine 10 is connect with low voltage generator 9, and the exhaust steam end and oxygen-eliminating device 11 of all low-pressure turbines 10 connect
It connects.
The extraction line 5 of medium pressure steam turbine 1 connects a main branch, a plurality of branch in parallel in main branch, institute
Main branch is stated equipped with steam extraction branch electrically operated gate 6.
Every branch road is also in series with gate valve 7 and electric control valve 8.
The low voltage generator 9 and low-pressure turbine 10 are installed at zero meter of the generator 2.
A kind of can be the working method of the coal-fired mud power plant system of condenser Reduction of Students' Study Load, and Turbo-generator Set is to take out solidifying machine
Group, comprising:
The steam of middle-pressure steam turbine is introduced on the low-pressure turbine being installed at zero meter of generator, and will be generated electricity in low pressure
Steam condensate after machine completes passes through pipeline to oxygen-eliminating device, and realization recycles；
When night steam extraction amount be greatly decreased or condenser efficiency decline when, utilize extraction steam extraction push low pressure steamer hair
Motor operation acting reduces the work load of condenser to reduce the steam amount into condenser, improves vacuum degree to mention
High unit efficiency.
The electricity that low voltage generator issues is directly incorporated into low pressure station-service distribution section, provides electricity for station-service subsidiary engine.
As shown in Fig. 2, a kind of can be the coal-fired mud power plant system of condenser Reduction of Students' Study Load, Turbo-generator Set is pure condensate machine
Group, including middle-pressure steam turbine 1, medium pressure steam turbine 1 are connect with generator 2, the blow-off line 3 of medium pressure steam turbine 1 with
Condenser 4 connects, while a plurality of branch in parallel, and every branch road is equipped with low-pressure turbine 10, the low-pressure turbine 10 with it is low
Pressure motor 9 connects, and the exhaust steam end of all low-pressure turbines 10 is connect with oxygen-eliminating device 11.
The blow-off line 3 of medium pressure steam turbine 1 connects a main branch, a plurality of branch in parallel in main branch, institute
Main branch is stated equipped with blow-off line branch electrically operated gate 12.
Every branch road is also in series with gate valve 7 and electric control valve 8.
The low voltage generator 9 and low-pressure turbine 10 are installed at zero meter of the generator 2.
A kind of can be the working method of the coal-fired mud power plant system of condenser Reduction of Students' Study Load, and Turbo-generator Set is pure condensate machine
Group, comprising:
The steam of middle-pressure steam turbine is introduced on the low-pressure turbine being installed at zero meter of generator, and will be generated electricity in low pressure
Steam condensate after machine completes passes through pipeline to oxygen-eliminating device, and realization recycles；
When night steam extraction amount be greatly decreased or condenser efficiency decline when, utilize extraction steam discharge push low pressure steamer hair
Motor operation acting reduces the work load of condenser to reduce the steam amount into condenser, improves vacuum degree to mention
High unit efficiency.
It further include that the electricity that low voltage generator issues is directly incorporated into low pressure station-service distribution section, provides electricity for station-service subsidiary engine
Amount.
The present invention is directed to medium temperature and medium pressure extraction condensing type or pure condensate formula Turbo-generator Set, mainly includes low-pressure turbine, asynchronous
Generator, electrically operated gate, electric control valve, gate valve, oxygen-eliminating device and each steam/drain water piping.By in extraction and condensing unit steam extraction branch
After electrically operated gate or on pure condensate unit blow-off line, increase by a bypass jet chimney.By that will be steamed after electrically operated gate-gate valve-regulating valve
Vapour introducing is installed on the low voltage generator at zero meter of low-pressure turbine, and by the steam condensation after low voltage generator completes
Water is recycled by pipeline to oxygen-eliminating device to realize.
When night steam extraction amount be greatly decreased or the decline of condenser efficiency when, utilize the steam extraction of extraction or steam discharge to push low pressure
Generator operation acting reduces the work load of condenser to reduce the steam amount into condenser, improve vacuum degree to
Improve unit efficiency.And the electricity that low voltage generator issues can be directly incorporated into low pressure station-service distribution section, it is provided for station-service subsidiary engine
Electricity.The condensed water of low voltage generator discharge completes new steam/water circulating through pipeline to oxygen-eliminating device.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (8)
1. a kind of can be the coal-fired mud power plant system of condenser Reduction of Students' Study Load, Turbo-generator Set is pure condensate unit, characterized in that packet
Middle-pressure steam turbine is included, medium pressure steam turbine is connect with generator, and the blow-off line of medium pressure steam turbine is connect with condenser,
A plurality of branch in parallel simultaneously, every branch road are equipped with low-pressure turbine, and the low-pressure turbine is connect with low voltage generator, is owned
The exhaust steam end of low-pressure turbine connect with oxygen-eliminating device；The blow-off line of medium pressure steam turbine connects a main branch, main branch
The road a plurality of branch in parallel, the main branch are equipped with blow-off line branch electrically operated gate.
2. a kind of can be the coal-fired mud power plant system of condenser Reduction of Students' Study Load, Turbo-generator Set is extraction and condensing unit, characterized in that packet
Middle-pressure steam turbine is included, medium pressure steam turbine is connect with generator, and the blow-off line of medium pressure steam turbine is connect with condenser,
The extraction line of medium pressure steam turbine a plurality of branch in parallel, every branch road are equipped with low-pressure turbine, the low-pressure turbine
It is connect with low voltage generator, the exhaust steam end of all low-pressure turbines is connect with oxygen-eliminating device；The extraction steam pipe of medium pressure steam turbine
Road connects a main branch, a plurality of branch in parallel in main branch, and the main branch is equipped with steam extraction branch electrically operated gate.
3. a kind of coal-fired mud power plant system that can be lightened the burden for condenser as claimed in claim 1 or 2, characterized in that every
The branch road is also in series with gate valve and electric control valve.
4. a kind of coal-fired mud power plant system that can be lightened the burden for condenser as claimed in claim 1 or 2, characterized in that described
Low voltage generator and low-pressure turbine are installed at zero meter of the generator.
5. a kind of working method using coal-fired mud power plant system as claimed in claim 2, Turbo-generator Set are to take out solidifying machine
Group, characterized in that include:
The steam of middle-pressure steam turbine is introduced on the low-pressure turbine being installed at zero meter of generator, and will be done in low-pressure turbine
By pipeline to oxygen-eliminating device, realization recycles steam condensate after completion；
When night steam extraction amount is greatly decreased or condenser efficiency declines, low-pressure turbine operation is pushed to do using the steam extraction of extraction
Function reduces the work load of condenser to reduce the steam amount into condenser, improves vacuum degree to improve unit effect
Rate.
6. working method as claimed in claim 5, characterized in that further include that the electricity for issuing low voltage generator is directly simultaneously
Enter low pressure station-service distribution section, provides electricity for station-service subsidiary engine.
7. a kind of working method using coal-fired mud power plant system described in claim 1, Turbo-generator Set is pure condensate machine
Group, characterized in that include:
The steam of middle-pressure steam turbine is introduced on the low-pressure turbine being installed at zero meter of generator, and will be done in low-pressure turbine
By pipeline to oxygen-eliminating device, realization recycles steam condensate after completion；
When condenser efficiency declines, low-pressure turbine operation acting is pushed using the steam discharge of extraction, to reduce into condenser
Steam amount, reduce the work load of condenser, improve vacuum degree to improve unit efficiency.
8. working method as claimed in claim 7, characterized in that further include that the electricity for issuing low voltage generator is directly simultaneously
Enter low pressure station-service distribution section, provides electricity for station-service subsidiary engine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710491125.2A CN107313814B (en) | 2017-06-23 | 2017-06-23 | A kind of can be the coal-fired mud power plant system and method for condenser Reduction of Students' Study Load |
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| CN201710491125.2A CN107313814B (en) | 2017-06-23 | 2017-06-23 | A kind of can be the coal-fired mud power plant system and method for condenser Reduction of Students' Study Load |
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| CN107313814A CN107313814A (en) | 2017-11-03 |
| CN107313814B true CN107313814B (en) | 2019-08-20 |
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| CN109915222B (en) * | 2019-03-08 | 2022-04-08 | 济南市琦泉热电有限责任公司 | Opposite conveying device and method for medium-temperature and medium-pressure steam in cascade utilization power plant |
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| CN103266925A (en) * | 2013-05-10 | 2013-08-28 | 南京师范大学 | System and method for supplying motive power for auxiliary machinery of thermal power plant |
| CN103498708A (en) * | 2013-10-10 | 2014-01-08 | 中国电力工程顾问集团华东电力设计院 | Air-cooling reheating unit system arranged in small back-pressure type steam turbine and used for driving feed pump |
| CN104405459A (en) * | 2014-11-21 | 2015-03-11 | 华电国际电力股份有限公司技术服务中心 | Backpressure machine acting and heat supply device for steam exhaust heat supply network of intermediate pressure cylinder of steam turbine |
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2017
- 2017-06-23 CN CN201710491125.2A patent/CN107313814B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899999A (en) * | 2009-05-31 | 2010-12-01 | 中国电力工程顾问集团华东电力设计院 | Small turbine system in power plant and thermal cycle system in power plant containing same |
| CN102678207A (en) * | 2011-03-18 | 2012-09-19 | 中国电力工程顾问集团华东电力设计院 | Thermodynamic system with twice reheating |
| CN202813417U (en) * | 2012-09-05 | 2013-03-20 | 华北电力大学 | Energy-saving system for preheating air by utilizing exhaust steam of small steam turbine in power plant |
| CN103266925A (en) * | 2013-05-10 | 2013-08-28 | 南京师范大学 | System and method for supplying motive power for auxiliary machinery of thermal power plant |
| CN103498708A (en) * | 2013-10-10 | 2014-01-08 | 中国电力工程顾问集团华东电力设计院 | Air-cooling reheating unit system arranged in small back-pressure type steam turbine and used for driving feed pump |
| CN104405459A (en) * | 2014-11-21 | 2015-03-11 | 华电国际电力股份有限公司技术服务中心 | Backpressure machine acting and heat supply device for steam exhaust heat supply network of intermediate pressure cylinder of steam turbine |
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