CN107313814A - A kind of coal-fired mud power plant system that can be lightened the burden for condenser and method - Google Patents
A kind of coal-fired mud power plant system that can be lightened the burden for condenser and method Download PDFInfo
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- CN107313814A CN107313814A CN201710491125.2A CN201710491125A CN107313814A CN 107313814 A CN107313814 A CN 107313814A CN 201710491125 A CN201710491125 A CN 201710491125A CN 107313814 A CN107313814 A CN 107313814A
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- condenser
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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 a kind of coal-fired mud power plant system that can be lightened the burden for condenser and method, Turbo-generator Set is pure condensate unit, including middle-pressure steam turbine, medium pressure steam turbine is connected with generator, the blow-off line of medium pressure steam turbine is connected with condenser, while a plurality of branch road in parallel, every branch road is provided with low-pressure turbine, the low-pressure turbine is connected with low voltage generator, and the exhaust steam end of all low-pressure turbines is connected with oxygen-eliminating device.This invention ensures that the steady load of unit, the ladder for realizing energy is utilized, you can provide low pressure station service, condenser burden can be mitigated again.
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 technology
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 two kinds of high temperature and high pressure steam and medium pressure steam, wherein high
Warm high steam is directly produced 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 is produced jointly.In addition to back pressure generating set, also possess pure condensate and extraction condensing type turbine generator
Unit, it enters vapour for medium pressure steam, take out/steam discharge is low-pressure steam, wherein draw gas is delivered to each use through low-pressure steam pipeline
Family is used for it, and remaining steam discharge is then cooled to re-use after condensate into condenser.In production usually, condenser
Cooling circulating water pipeline due to fouling and clogging, can cause condenser efficiency step-down, and night outer net steam consumption is reduced, and makes to take out
Vapour amount is reduced, so that the quantity of steam increase of condenser is caused entry into, so that condenser load becomes big.When condenser can not be timely
When steam discharge being cooled into condensate and being drained, unit load will be influenceed, the phenomenon of unit load down is caused.
In production before, usually using recirculated water dosing scale removal, compressor emergency shutdown dredges the method for condenser to improve
Condenser efficiency, but dosing scale removal effect is not notable, not lasting, and shutting down dredging must be carried out in turn(a)round again, so in order to ensure
Unit load is, it is necessary to which a kind of can mitigate the system of condenser burden.
The content of the invention
The purpose of the present invention is exactly that there is provided a kind of combustion electricity generation by coal sludge that can be lightened the burden for condenser in order to solve the above problems
Factory's system and method, it is ensured that the steady load of unit, the ladder for realizing energy is utilized, you can provide low pressure station service, again
Condenser burden can be mitigated.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is pure condensate unit, including middle pressure
Steam turbine, medium pressure steam turbine is connected with generator, and the blow-off line of medium pressure steam turbine is connected with condenser, while simultaneously
Join a plurality of branch road, every branch road is provided with low-pressure turbine, and the low-pressure turbine is connected with low voltage generator, all low pressure
The exhaust steam end of steam turbine is connected with oxygen-eliminating device.
Including middle-pressure steam turbine, medium pressure steam turbine is connected with generator, the blow-off line of medium pressure steam turbine with
Condenser is connected, the extraction line a plurality of branch road in parallel of medium pressure steam turbine, and every branch road is provided with low-pressure turbine, described
Low-pressure turbine is connected with low voltage generator, and the exhaust steam end of all low-pressure turbines is connected with oxygen-eliminating device.
The blow-off line of medium pressure steam turbine connects a plurality of branch road in parallel in a main branch, main branch, described
Main branch is provided with blow-off line branch road electrically operated gate branch road electrically operated gate.
The extraction line of medium pressure steam turbine connects a plurality of branch road in parallel in a main branch, main branch, described
Main branch is provided with branch road electrically operated gate of drawing gas.
Gate valve and electric control valve are also in series with every branch road.
The low voltage generator and low-pressure turbine are installed at zero meter of the generator.
A kind of method of work for the coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is to take out solidifying machine
Group, including：
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
Machine complete after steam condensate by pipeline to oxygen-eliminating device, realization is recycled；
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize the promotion low pressure steamer hair that draws gas of extraction
Motor operation is done work, so as to reduce the steam amount into condenser, is reduced the work load of condenser, is improved vacuum to carry
High unit efficiency.
Also include, the electricity that low voltage generator is sent is directly incorporated into low pressure station-service distribution section, electricity is provided for station-service subsidiary engine
Amount.
A kind of method of work for the coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is pure condensate machine
Group, including：
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
Machine complete after steam condensate by pipeline to oxygen-eliminating device, realization is recycled；
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize the steam discharge of extraction to promote low pressure steamer hair
Motor operation is done work, so as to reduce the steam amount into condenser, is reduced the work load of condenser, is improved vacuum to carry
High unit efficiency.
Also include, the electricity that low voltage generator is sent is directly incorporated into low pressure station-service distribution section, electricity is provided for station-service subsidiary engine
Amount.
The beneficial effects of the invention are as follows：
By the way that after extraction and condensing unit draws gas branch road electrically operated gate or on pure condensate unit blow-off line, increase by one bypasses jet chimney
And install one to multiple low pressure Turbo-generator Set additional in zero meter of the generator of middle-pressure steam turbine, reduce the quantity of steam for entering condenser
So as to ensure condenser efficiency, and realize reusing for low-pressure steam.
This invention ensures that the steady load of unit, the ladder for realizing energy is utilized, you can provide low pressure station service, again
Condenser burden can be mitigated.
Brief description of the drawings
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 draw gas branch road electrically operated gate,
7 gate valves, 8 electric control valves, 9 low voltage generators, 10 low-pressure turbines, 11 oxygen-eliminating devices, 12. blow-off line branch road electrically operated gates.
Embodiment：
The present invention will be further described with embodiment below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is to take out solidifying machine
Group, including middle-pressure steam turbine 1, medium pressure steam turbine 1 are connected with generator 2, the blow-off line 3 of medium pressure steam turbine 1 with
Condenser 4 is connected, a plurality of branch road in parallel of extraction line 5 of medium pressure steam turbine 1, and every branch road is provided with low-pressure turbine
10, the low-pressure turbine 10 is connected with low voltage generator 9, and the exhaust steam end of all low-pressure turbines 10 connects with oxygen-eliminating device 11
Connect.
The extraction line 5 of medium pressure steam turbine 1 connects a plurality of branch road in parallel, institute in a main branch, main branch
Main branch is stated provided with branch road electrically operated gate 6 of drawing gas.
Gate valve 7 and electric control valve 8 are also in series with every branch road.
The low voltage generator 9 and low-pressure turbine 10 are installed at zero meter of the generator 2.
A kind of method of work for the coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is to take out solidifying machine
Group, including：
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
Machine complete after steam condensate by pipeline to oxygen-eliminating device, realization is recycled；
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize the promotion low pressure steamer hair that draws gas of extraction
Motor operation is done work, so as to reduce the steam amount into condenser, is reduced the work load of condenser, is improved vacuum to carry
High unit efficiency.
The electricity that low voltage generator is sent is directly incorporated into low pressure station-service distribution section, and electricity is provided for station-service subsidiary engine.
As shown in Fig. 2 a kind of coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is pure condensate machine
Group, including middle-pressure steam turbine 1, medium pressure steam turbine 1 are connected with generator 2, the blow-off line 3 of medium pressure steam turbine 1 with
Condenser 4 is connected, while a plurality of branch road in parallel, and every branch road is provided with low-pressure turbine 10, the low-pressure turbine 10 with it is low
Pressure motor 9 is connected, and the exhaust steam end of all low-pressure turbines 10 is connected with oxygen-eliminating device 11.
The blow-off line 3 of medium pressure steam turbine 1 connects a plurality of branch road in parallel, institute in a main branch, main branch
Main branch is stated provided with blow-off line branch road electrically operated gate 12.
Gate valve 7 and electric control valve 8 are also in series with every branch road.
The low voltage generator 9 and low-pressure turbine 10 are installed at zero meter of the generator 2.
A kind of method of work for the coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is pure condensate machine
Group, including：
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
Machine complete after steam condensate by pipeline to oxygen-eliminating device, realization is recycled；
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize the steam discharge of extraction to promote low pressure steamer hair
Motor operation is done work, so as to reduce the steam amount into condenser, is reduced the work load of condenser, is improved vacuum to carry
High unit efficiency.
Also include, the electricity that low voltage generator is sent is directly incorporated into low pressure station-service distribution section, electricity is provided 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 comprising low-pressure turbine, asynchronous
Generator, electrically operated gate, electric control valve, gate valve, oxygen-eliminating device and each steam/drain water piping.By being drawn gas branch road in extraction and condensing unit
After electrically operated gate or on pure condensate unit blow-off line, increase by one bypasses jet chimney.By that will be steamed after electrically operated gate-gate valve-regulating valve
Vapour is introduced and 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, to oxygen-eliminating device, is recycled by pipeline so as to realize.
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize extraction draw gas or steam discharge promote low pressure
Generator operation is done work, so as to reduce the steam amount into condenser, reduces the work load of condenser, improve vacuum so as to
Improve unit efficiency.And the electricity that low voltage generator is sent can be directly incorporated into low pressure station-service distribution section, provided for station-service subsidiary engine
Electricity.The condensate of low voltage generator discharge completes new steam/water circulating through pipeline to oxygen-eliminating device.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (10)
1. a kind of coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is pure condensate unit, it is characterized in that, bag
Middle-pressure steam turbine is included, medium pressure steam turbine is connected with generator, and the blow-off line of medium pressure steam turbine is connected with condenser,
While a plurality of branch road in parallel, every branch road is provided with low-pressure turbine, the low-pressure turbine is connected with low voltage generator, is owned
The exhaust steam end of low-pressure turbine be connected with oxygen-eliminating device.
2. a kind of coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is extraction and condensing unit, it is characterized in that, bag
Middle-pressure steam turbine is included, medium pressure steam turbine is connected with generator, and the blow-off line of medium pressure steam turbine is connected with condenser,
The extraction line of medium pressure steam turbine a plurality of branch road in parallel, every branch road is provided with low-pressure turbine, the low-pressure turbine
It is connected with low voltage generator, the exhaust steam end of all low-pressure turbines is connected with oxygen-eliminating device.
3. a kind of coal-fired mud power plant system that can be lightened the burden for condenser as claimed in claim 1, it is characterized in that, medium pressure
The blow-off line of steam turbine connects a plurality of branch road in parallel in a main branch, main branch, and the main branch is provided with steam discharge
Pipeline branch road electrically operated gate.
4. a kind of coal-fired mud power plant system that can be lightened the burden for condenser as claimed in claim 2, it is characterized in that, medium pressure
The extraction line of steam turbine connects a plurality of branch road in parallel in a main branch, main branch, and the main branch is provided with and drawn gas
Branch road electrically operated gate.
5. a kind of coal-fired mud power plant system that can be lightened the burden for condenser as claimed in claim 1 or 2, it is characterized in that, every
Gate valve and electric control valve are also in series with the branch road.
6. a kind of coal-fired mud power plant system that can be lightened the burden for condenser as claimed in claim 1 or 2, it is characterized in that, it is described
Low voltage generator and low-pressure turbine are installed at zero meter of the generator.
7. a kind of method of work for the coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is extraction and condensing unit,
It is characterized in that, including：
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 voltage generator
Steam condensate after completion is by pipeline to oxygen-eliminating device, and realization is recycled；
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize extraction draw gas promotion low pressure steam turbine generator
Operation acting, so as to reduce the steam amount into condenser, reduces the work load of condenser, improves vacuum to improve machine
Group efficiency.
8. method of work as claimed in claim 7, it is characterized in that, in addition to, the electricity that low voltage generator is sent is directly simultaneously
Enter low pressure station-service distribution section, electricity is provided for station-service subsidiary engine.
9. a kind of method of work for the coal-fired mud power plant system that can be lightened the burden for condenser, Turbo-generator Set is pure condensate unit,
It is characterized in that, including：
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 voltage generator
Steam condensate after completion is by pipeline to oxygen-eliminating device, and realization is recycled；
When the night amount of drawing gas be greatly decreased or condenser efficiency decline when, utilize extraction steam discharge promote low pressure steam turbine generator
Operation acting, so as to reduce the steam amount into condenser, reduces the work load of condenser, improves vacuum to improve machine
Group efficiency.
10. method of work as claimed in claim 9, it is characterized in that, in addition to, the electricity that low voltage generator is sent is directly simultaneously
Enter low pressure station-service distribution section, electricity is provided for station-service subsidiary engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 true CN107313814A (en) | 2017-11-03 |
| CN107313814B CN107313814B (en) | 2019-08-20 |
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| CN201710491125.2A Active 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915222A (en) * | 2019-03-08 | 2019-06-21 | 济南市琦泉热电有限责任公司 | Cascade utilization power plant medium pressure steam opposite direction conveying device and method |
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| 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)
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|---|---|---|---|---|
| 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109915222A (en) * | 2019-03-08 | 2019-06-21 | 济南市琦泉热电有限责任公司 | Cascade utilization power plant medium pressure steam opposite direction conveying device and method |
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| CN107313814B (en) | 2019-08-20 |
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