CN105927965B - A kind of wide load heat regenerative system and method for work - Google Patents
A kind of wide load heat regenerative system and method for work Download PDFInfo
- Publication number
- CN105927965B CN105927965B CN201610462872.9A CN201610462872A CN105927965B CN 105927965 B CN105927965 B CN 105927965B CN 201610462872 A CN201610462872 A CN 201610462872A CN 105927965 B CN105927965 B CN 105927965B
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- China
- Prior art keywords
- heating equipment
- ancillary heating
- pressure heater
- ancillary
- steam turbine
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
- F22D1/34—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines and returning condensate to boiler with main feed supply
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of wide load heat regenerative system and method for work, steam turbine including being connected with generator, steam turbine connects condenser and boiler, high-pressure heater connects oxygen-eliminating device by the first ancillary heating equipment, condenser connects the second ancillary heating equipment, second ancillary heating equipment connects oxygen-eliminating device by low-pressure heater, and steam turbine is by aiding in heating pipeline to connect the first ancillary heating equipment and the second ancillary heating equipment.The present invention sets two ancillary heating equipments, and in the usual operation at part load of unit, the two equipment do not put into operation, and unit operation economy is higher；And when needing to improve the power of generator, condensate is heated twice by the two equipment utilization main steams, so as to improve condensing water temperature, now high-pressure heater and low-pressure heater are out of service, no longer drawn gas out of steam turbine, reach the purpose for improving generator power, both ensure that the peak modulation capacity of power network, make the reduction of longtime running operating mode energy consumption level again.
Description
【Technical field】
The invention belongs to power field, and in particular to a kind of wide load heat regenerative system and method for work.
【Background technology】
Existing Thermal System of Fossil Fuel-Fired Power Station is mainly set by boiler, steam turbine, condenser, oxygen-eliminating device and heater at different levels etc.
Standby and pipeline is built.The superheated steam as caused by boiler enters Steam Turbine, drives generator next life electricity production energy.Condensate
Boiler is entered by heat regenerative system heating, completes the circulation between carbonated drink.Heat regenerative system is put into the range of full load, system ginseng
Number does not make any adjustments.Existing Steam Turbine production technology, generating energy consumption level increase with the reduction of electrical power, power generation
Development of the situation trend, the demand more and more higher of fired power generating unit peak regulation, many units in operation at part load, cause industry whole for a long time
Physical efficiency consumption rise.And the rate of load condensate of operating unit is improved by reducing grid-connected unit capacity mode, so as to reduce generating set
Overall energy consumption, power network can be caused to adapt to peak modulation capacity again to be reduced, and influences the reliability of the overall supply of electric power of society.
【The content of the invention】
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of wide load heat regenerative system and method for work, both ensure
The peak modulation capacity of power network, make the reduction of longtime running operating mode energy consumption level again, promote power industry energy-saving and emission-reduction.
In order to achieve the above object, a kind of wide load heat regenerative system, including the steam turbine of generator is connected with, steam turbine connects
Condenser and boiler are connect, high-pressure heater connects oxygen-eliminating device by the first ancillary heating equipment, and the auxiliary of condenser connection second adds
Hot equipment, the second ancillary heating equipment connect oxygen-eliminating device by low-pressure heater, and steam turbine is by aiding in heating pipeline connection the
One ancillary heating equipment and the second ancillary heating equipment.
The entrance of the low-pressure heater connection oxygen-eliminating device, the outlet of oxygen-eliminating device connect the first ancillary heating equipment.
The high-pressure heater is using the steam supply that draws gas.
The low-pressure heater is using the steam supply that draws gas.
First ancillary heating equipment and the second ancillary heating equipment are put into according to the requirement of generating set load height
Operation is out of service.
First ancillary heating equipment and the second ancillary heating equipment using surface heater, contact(-type) heater or
Draw gas ejector etc..
The position of the high-pressure heater and the first ancillary heating equipment can be exchanged, and low-pressure heater and the second auxiliary add
The position of hot equipment can be exchanged.
A kind of method of work of wide load heat regenerative system, during usual operation at part load, condensate caused by condenser according to
It is secondary that steam turbine is entered by low-pressure heater, oxygen-eliminating device and high-pressure heater；
If desired improve generator power, then condensate caused by condenser pass sequentially through the second ancillary heating equipment,
Oxygen-eliminating device and the first ancillary heating equipment enter boiler.
Compared with prior art, the present invention sets two ancillary heating equipments, in the usual operation at part load of unit, this
Two equipment do not put into operation, and unit operation economy is higher；And when needing to improve the power of generator, set by the two
It is standby that condensate is heated twice using main steam, so as to improve condensing water temperature, now high-pressure heater and low-pressure heating
Device is out of service, is no longer drawn gas out of steam turbine, reaches the purpose for improving generator power, both ensure that the peak regulation energy of power network
Power, make the reduction of longtime running operating mode energy consumption level again, promote power industry energy-saving and emission-reduction.
【Brief description of the drawings】
Fig. 1 is the structural representation of the present invention.
【Embodiment】
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of wide load heat regenerative system, including the steam turbine 1 of generator 8 is connected with, steam turbine 1 connects condensing
Device 2 and boiler 9, high-pressure heater 3 connect oxygen-eliminating device 5 by the first ancillary heating equipment 4, and the auxiliary of the connection of condenser 2 second adds
Hot equipment 6, the second ancillary heating equipment 6 connect oxygen-eliminating device 5 by low-pressure heater 7, and steam turbine 1 heats pipeline by aiding in
The first ancillary heating equipment 4 and the second ancillary heating equipment 6 are connected, low-pressure heater 7 connects the entrance of oxygen-eliminating device 5, oxygen-eliminating device 5
Outlet connect the first ancillary heating equipment 4, high-pressure heater 3 using drawing gas steam supply, low-pressure heater 7 using the steam supply that draws gas,
First ancillary heating equipment 4 and the second ancillary heating equipment 6 put into operation or stopped according to the requirement of generating set load height
Operation, the first ancillary heating equipment 4 and the second ancillary heating equipment 6 are using surface heater, contact(-type) heater or draw gas
Ejector etc..
Preferably, the position of high-pressure heater 3 and the first ancillary heating equipment 4 can be exchanged, low-pressure heater 7 and second
The position of ancillary heating equipment 6 can be exchanged.
A kind of method of work of wide load heat regenerative system, during usual operation at part load, condensate caused by condenser 2 according to
It is secondary that boiler 9 is entered by low-pressure heater 7, oxygen-eliminating device 5 and high-pressure heater 3；
If desired the power of generator 8 is improved, then condensate caused by condenser 2 passes sequentially through the second ancillary heating equipment
6th, the ancillary heating equipment 4 of oxygen-eliminating device 5 and first enters boiler 9.
The present invention no longer drawn gas to improve the power of the assembling unit out of steam turbine, and using ancillary heating equipment with main steam come
Heat-setting water.
Claims (6)
1. a kind of wide load heat regenerative system, it is characterised in that the steam turbine (1) including being connected with generator (8), steam turbine (1)
Condenser (2) and boiler (9) are connected, high-pressure heater (3) connects oxygen-eliminating device (5), condensing by the first ancillary heating equipment (4)
Device (2) connects the second ancillary heating equipment (6), and the second ancillary heating equipment (6) connects oxygen-eliminating device by low-pressure heater (7)
(5), steam turbine (1) is by aiding in heating pipeline to connect the first ancillary heating equipment (4) and the second ancillary heating equipment (6)；
The high-pressure heater (3) is using the steam supply that draws gas；
The low-pressure heater (7) is using the steam supply that draws gas.
A kind of 2. wide load heat regenerative system according to claim 1, it is characterised in that low-pressure heater (7) connection
The entrance of oxygen-eliminating device (5), the outlet of oxygen-eliminating device (5) connect the first ancillary heating equipment (4).
A kind of 3. wide load heat regenerative system according to claim 1, it is characterised in that first ancillary heating equipment
(4) put into operation with the second ancillary heating equipment (6) according to the requirement of generating set load height or out of service.
A kind of 4. wide load heat regenerative system according to claim 1, it is characterised in that first ancillary heating equipment
(4) and the second ancillary heating equipment (6) uses surface heater, contact(-type) heater or the ejector that draws gas.
A kind of 5. wide load heat regenerative system according to claim 1, it is characterised in that the high-pressure heater (3) and the
The position of one ancillary heating equipment (4) can be exchanged, and the position of low-pressure heater (7) and the second ancillary heating equipment (6) can
Exchange.
A kind of 6. method of work of wide load heat regenerative system described in claim 1, it is characterised in that usual operation at part load
When, condensate caused by condenser (2) directly passes sequentially through low-pressure heater (7), oxygen-eliminating device (5) and high-pressure heater (3) and entered
Enter boiler (9)；
If desired the power of generator (8) is improved, then condensate caused by condenser (2) passes sequentially through the second ancillary heating equipment
(6), oxygen-eliminating device (5) and the first ancillary heating equipment (4) enter boiler (9), now high-pressure heater (3) and low-pressure heater
(7) it is out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610462872.9A CN105927965B (en) | 2016-06-22 | 2016-06-22 | A kind of wide load heat regenerative system and method for work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610462872.9A CN105927965B (en) | 2016-06-22 | 2016-06-22 | A kind of wide load heat regenerative system and method for work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927965A CN105927965A (en) | 2016-09-07 |
| CN105927965B true CN105927965B (en) | 2018-01-16 |
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ID=56831603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610462872.9A Active CN105927965B (en) | 2016-06-22 | 2016-06-22 | A kind of wide load heat regenerative system and method for work |
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| Country | Link |
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| CN (1) | CN105927965B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360540B (en) * | 2019-07-22 | 2020-08-07 | 国网吉林省电力有限公司电力科学研究院 | Boiler main steam temperature control method for power grid AGC load instruction frequent fluctuation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696643A (en) * | 2009-10-30 | 2010-04-21 | 北京联合优发能源技术有限公司 | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof |
| CN203097968U (en) * | 2013-02-03 | 2013-07-31 | 成都酷玩网络科技有限公司 | Thermal system of generator set |
| CN204962711U (en) * | 2015-08-13 | 2016-01-13 | 浙江浙能技术研究院有限公司 | Supercritical unit or super supercritical unit do not have oxygen -eliminating device heat regenerative system |
| CN205172659U (en) * | 2015-11-09 | 2016-04-20 | 华北电力大学（保定） | Synthesize refrigerated double reheat unit thermodynamic system |
| CN205678656U (en) * | 2016-06-22 | 2016-11-09 | 西安热工研究院有限公司 | A kind of wide load heat regenerative system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110877A (en) * | 1984-11-02 | 1986-05-29 | Hitachi Ltd | Vacuum pump for condenser |
-
2016
- 2016-06-22 CN CN201610462872.9A patent/CN105927965B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696643A (en) * | 2009-10-30 | 2010-04-21 | 北京联合优发能源技术有限公司 | Low-temperature heat energy recovering apparatus of heat and electricity co-generation and recovering method thereof |
| CN203097968U (en) * | 2013-02-03 | 2013-07-31 | 成都酷玩网络科技有限公司 | Thermal system of generator set |
| CN204962711U (en) * | 2015-08-13 | 2016-01-13 | 浙江浙能技术研究院有限公司 | Supercritical unit or super supercritical unit do not have oxygen -eliminating device heat regenerative system |
| CN205172659U (en) * | 2015-11-09 | 2016-04-20 | 华北电力大学（保定） | Synthesize refrigerated double reheat unit thermodynamic system |
| CN205678656U (en) * | 2016-06-22 | 2016-11-09 | 西安热工研究院有限公司 | A kind of wide load heat regenerative system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927965A (en) | 2016-09-07 |
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