CN108825316A - A kind of steam extraction heat supply unit quick response load system - Google Patents
A kind of steam extraction heat supply unit quick response load system Download PDFInfo
- Publication number
- CN108825316A CN108825316A CN201810993921.0A CN201810993921A CN108825316A CN 108825316 A CN108825316 A CN 108825316A CN 201810993921 A CN201810993921 A CN 201810993921A CN 108825316 A CN108825316 A CN 108825316A
- Authority
- CN
- China
- Prior art keywords
- steam
- cylinder
- heat supply
- load
- quick response
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to thermal power generation thermal power plant units to optimize running technology field, more specifically, it is related to a kind of steam extraction heat supply unit quick response load system, on the basis of original furnace follows coordinated control mode, increase steam extraction amount variation adjustment generation load function, both the variation of AGC load instruction had been able to satisfy to require, heating is not influenced again, improve the load responding of steam extraction heat supply unit, significantly promote the load -response-speed of steam extraction heat supply unit, the flexibility of steam extraction heat supply unit is improved, it is highly beneficial to electric power assisted hatchingization.
Description
Technical field
The present invention relates to thermal power generation thermal power plant units to optimize running technology field, more specifically, is related to a kind of steam extraction confession
Heat engine group quick response load system.
Background technique
Steam extraction heat supply unit, which refers to draw from the steam extraction of steam turbine part, concentrates city for heating heat supply network recirculated water
A part of intermediate pressure cylinder steam discharge is led to heat exchangers for district heating by taking 300MW grades of steam-extracting type thermal power plant units as an example, due to intermediate pressure cylinder by heat supply
The extraction of steam discharge, the quantity of steam into low pressure (LP) cylinder acting power generation is reduced, during will cause heating, steam extraction heat supply unit power generation
Load is accordingly reduced, steam extraction heat supply unit varying duty response performance is poor, seriously affects power grid AGC, ACE modulability for steam power plant
Energy index, to cause that cost of verification and evaluation occurs for steam power plant's electric power ancillary service.During existing steam extraction heat supply unit heat supply steam extraction,
It is to be drawn intermediate pressure cylinder steam discharge by turning down mesolow communicating pipe butterfly valve, valve is adjusted by heat supply extraction line, heat supply steam extraction
Draw and be connected to heat exchangers for district heating, by taking 300MW steam turbine thermal power plant unit as an example, since mesolow Diameter of connecting pipe is larger
（DN1400mm）, mesolow communicating pipe butterfly valve use hydraulic control, extraction for heat supply run during, mesolow communicating pipe butterfly valve it is general
In throttle, communicating pipe butterfly valve bore it is larger, Adjustment precision is poor, if adjustment frequently communicating pipe butterfly valve is be easy to cause to close entirely,
Intermediate pressure cylinder exhaust steam pressure transfinites or intermediate pressure cylinder exhaust temperature transfinites to occurring, and has a significant impact to Turbine Safety operation, because
In this live actual moving process, the butterfly valve generally use of steam extraction heat supply unit communicating pipe is manually controlled, and maintains centainly to open in operation
Degree, and its specific aperture is influenced by unit heat supply steam extraction amount size, operations staff adjusts valve by heat supply steam extraction to adjust heat supply
Extraction pressure, to guarantee heat exchangers for district heating supply water temperature.
Summary of the invention
In the presence of overcoming the shortcomings of the prior art, the present invention provides a kind of steam extraction heat supply unit quick response load
System, when solving the operation of existing extraction for heat supply steam turbine supplying thermal condition, steam turbine pitch is poor to the response performance of load, ACE mode
The problems such as parameter fluctuations amplitudes such as lower main steam pressure, fuel quantity, environmental protection index transfinite, and steam turbine pitch amplitude of fluctuation is big.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows：
A kind of steam extraction heat supply unit quick response load system, it is characterised in that：Including steam turbine high intermediate pressure cylinder, steam turbine low-pressure
Cylinder, generator, heat exchangers for district heating and condenser, the steam turbine high intermediate pressure cylinder pass through mesolow communicating pipe and turbine low pressure cylinder
Connection is provided with mesolow communicating pipe butterfly valve on the mesolow communicating pipe；The steam discharge of the steam turbine high intermediate pressure cylinder passes through confession
Hot steam extraction adjustment valve enters heat exchangers for district heating, and reject steam pipeline, the reject steam is arranged before the heat supply steam extraction adjustment valve
Pipe outlet is connected to mesolow communicating pipe, is provided with and is bypassed into vapour adjustment valve on the reject steam pipeline；The steam turbine is low
For cylinder pressure by connecting to wheel with generator, turbine low pressure cylinder steam discharge enters condenser.
The mesolow communicating pipe is in parallel with reject steam pipeline to enter turbine low pressure cylinder.
Described to bypass into vapour adjustment valve using control mode of surging, hydraulic oil is provided by Turbine Fire resistant Oil system.
The low communicating pipe butterfly valve of medium pressure is used to control intermediate pressure cylinder exhaust steam pressure and low pressure (LP) cylinder initial steam pressure is being safely operated
Within the scope of.
Described bypass into vapour adjusts valve by aperture variation, changes the steam flow for entering low pressure (LP) cylinder, to change low pressure
The acting of cylinder is contributed, and then changes generator actual load.
Described bypass into vapour adjustment valve opening controls AGC load instruction and actual generator load by automatic generation amount
Deviation control.
Through-current capacity, that is, reject steam pipeline of valve is adjusted by setting reject steam, control bypass adjustment valve opening variation is made
At the variation of low pressure (LP) cylinder throttle flow, reach the clipping influenced on load variations.
Compared with prior art, the advantageous effect of present invention is that：
The present invention provides a kind of steam extraction heat supply unit quick response load systems, follow coordinated control mode basic in original furnace
On, steam extraction amount variation adjustment generation load function is increased, the variation of AGC load instruction had not only been able to satisfy and has required, but also do not influenced heating
Heat supply improves the load responding of steam extraction heat supply unit, significantly promotes the load -response-speed of steam extraction heat supply unit, improves
The flexibility of steam extraction heat supply unit, it is highly beneficial to electric power assisted hatchingization.
Detailed description of the invention
Fig. 1 is a kind of steam extraction heat supply unit quick response load system schematic diagram that invention provides；
Fig. 2 is steam extraction heat supply unit quick response load control system flow chart.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of steam extraction heat supply unit quick response load system, it is characterised in that：Including steam turbine senior middle school
Cylinder pressure 1, turbine low pressure cylinder 2, generator 3, heat exchangers for district heating 7 and condenser 8, the steam turbine high intermediate pressure cylinder 1 pass through in it is low
Pressure is connected to communicating pipe 4 with turbine low pressure cylinder 2, is provided with mesolow communicating pipe butterfly valve 5 on the mesolow communicating pipe 4；It is described
The steam discharge of steam turbine high intermediate pressure cylinder 1 adjusts valve 6 by heat supply steam extraction and enters heat exchangers for district heating 7, before the heat supply steam extraction adjusts valve 6
Reject steam pipeline 9, the outlet of reject steam pipeline 9 connection mesolow communicating pipe 4 are set, and are connected to turbine low pressure cylinder 2
At air intake, it is provided with and is bypassed into vapour adjustment valve 10 on the reject steam pipeline 9；The turbine low pressure cylinder 2 is by wheel
It is connect with generator 3, the steam discharge of low pressure (LP) cylinder 2 enters condenser 8.The mesolow communicating pipe 4 is in parallel with reject steam pipeline 10.
The low communicating pipe butterfly valve 5 of medium pressure for control intermediate pressure cylinder exhaust steam pressure and low pressure (LP) cylinder initial steam pressure operational envelope it
It is interior.Described to bypass into vapour adjustment valve 10 using control mode of surging, hydraulic oil is provided by Turbine Fire resistant Oil system.The bypass
Valve 10 is adjusted into vapour to change by aperture, changes the steam flow for entering low pressure (LP) cylinder, thus change the acting power output of low pressure (LP) cylinder, into
And change generator actual load.It is described bypass into vapour adjustment 10 aperture of valve by automatic generation amount control AGC load instruction with
The deviation of actual generator load controls.Through-current capacity, that is, reject steam pipeline 9 of valve 10, control are adjusted by setting reject steam
Bypass adjustment 10 aperture of valve variation causes the variation of low pressure (LP) cylinder throttle flow, reaches the clipping influenced on load variations.
As shown in Fig. 2, increasing heat supply steam extraction amount on the basis of original boiler-turbine coordinated control mode（That is low pressure (LP) cylinder is into vapour
Amount）Change Load adjustment function；After the variation of AGC load instruction, actual load and AGC load instruction form load deviation, load
Deviation action adjusts valve control in reject steam, and controller issues reject steam adjustment valve opening variation instruction, reject steam
Adjustment valve opening changes；Reject steam adjusts valve opening variation, the steam flow variation of low pressure (LP) cylinder is caused entry into, to change
Be lower cylinder pressure acting power output, and then change generator actual load；
By taking 300MW grades of extraction for heat supply air cooling units as an example, intermediate pressure cylinder steam discharge is heat supply steam extraction, and steam extraction parameter is 0.4MPa（a）,
245 DEG C, design heat supply steam extraction amount is generally 500t/h under specified main steam amount, at this time low pressure (LP) cylinder throttle flow about 150t/h, back pressure
For 10kPa；It is calculated according to low pressure (LP) cylinder steam admission enthalpy hjq, low pressure (LP) cylinder exhaust enthalpy hpq, low pressure (LP) cylinder throttle flow changes 100t/h about
It influences generator output and changes 14MW, about 4.67%Pe（Pe refers to the nominal output of unit）；
Design 500t/h is not achieved in conjunction with the practical heating load most of the time of the practical 300MW steam extraction heat supply unit in scene, also
It is to say, low pressure (LP) cylinder throttle flow guarantees heat supply extraction pressure mesolow when supplying thermal condition operates normally generally in 200-300t/h
Communicating pipe butterfly valve is in flow restriction control state, mesolow communicating pipe butterfly valve choke pressure drop about 0.3-0.4MPa, power plant's operation
Personnel consider unit safety in operation generally manually controls, since mesolow communicating pipe regulating valve manually controls, low pressure (LP) cylinder into
The variation of vapour amount is relatively slow, and the load responding for further resulting in heat supply steam turbine group is poor；
For guarantee Turbine Safety operation, mesolow be connected to butterfly valve it is reliable for operation, be arranged reject steam pipeline, according to low pressure (LP) cylinder into
Vapour amount variation 100t/h about influences generator output variation 14MW, about 4.67%Pe；
300MW grades of thermal power plant units, reject steam pipeline through-current capacity are set as 120t/h, i.e., can pass through when bypass adjusts valve standard-sized sheet
120t/h steam, reject steam caliber are DN800mm, and 120t/h steam will affect low pressure (LP) cylinder acting about 16.8MW.
There are certain functional relation f (x) with through-current capacity for bypass adjustment valve opening, when AGC load instruction and actual load
When forming load deviation, if load deviation is 20MW, load deviation passes through certain proportion coefficient（Using 40%）Directly act on control
Device processed, i.e. 8MW act on bypass adjustment valve, bypass adjustment valve opening corresponding change；
The functional relation of bypass adjustment valve opening and through-current capacity：f(x)
| Flow percentage（f(x)） | 8% | 13% | 22% | 30% | 43% | 65% | 83% | 93% | 100% |
| Aperture (x) | 10° | 20° | 30° | 40° | 50° | 60° | 70° | 80° | 90° |
When load variations 8MW, low pressure (LP) cylinder throttle flow need to change 57t/h, and by functional relation f (x), changes in flow rate 47.5% is other
Road butterfly valve opening need to be changed to 63 ° by 20 ° of increases.
Bypass adjustment valve is that there is mechanical minimum aperture be 10 ° to butterfly valve, and standard-sized sheet aperture is 90 °, in response to the fast of load
Speed, adjustment valve, which is between 20 ° to 80 °, to be adjusted, therefore when adjustment response valve load deviation, sets clipping up and down, i.e., other
It is 80 ° that road adjustment valve minimum aperture, which is 20 ° of maximum openings, and flow percentage variation is 73%, i.e., alterable low pressure (LP) cylinder throttle flow is about
88t/h influences generator load about 12MW, reaches varying duty about 4%.
The response effect of bypass adjustment valve adjustment low pressure (LP) cylinder throttle flow response load occurs mainly in the variation of AGC load instruction
Initial stage, by changing low pressure (LP) cylinder throttle flow quickly come quick response unit load, and steam turbine pitch and boiler oil amount pair
The response of load is integrally to compare lag as the main response for adjusting load depth, especially boiler oil, and there have to be certain slow
Prolong, but the response of fuel quantity can guarantee the precision of steam extraction heat supply unit response load.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,
Within the knowledge of a person skilled in the art, it can also make without departing from the purpose of the present invention each
Kind variation, various change should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of steam extraction heat supply unit quick response load system, it is characterised in that：Including steam turbine high intermediate pressure cylinder（1）, steamer
Machine low pressure (LP) cylinder（2）, generator（3）, heat exchangers for district heating（7）And condenser（8）, the steam turbine high intermediate pressure cylinder（1）It is low in
Press communicating pipe（4）With turbine low pressure cylinder（2）Connection, the mesolow communicating pipe（4）On be provided with mesolow communicating pipe butterfly valve
（5）；The steam turbine high intermediate pressure cylinder（1）Steam discharge by heat supply steam extraction adjust valve（6）Into heat exchangers for district heating（7）, the confession
Hot steam extraction adjusts valve（6）Preceding setting reject steam pipeline（9）, the reject steam pipeline（9）Outlet mesolow communicating pipe
（4）, the reject steam pipeline（9）On be provided with bypass into vapour adjust valve（10）；The turbine low pressure cylinder（2）By to wheel
With generator（3）Connection, turbine low pressure cylinder（2）Steam discharge enters condenser（8）.
2. a kind of pumping thermal power plant unit quick response load system according to claim 1, it is characterised in that：It is low in described
Press communicating pipe（4）With reject steam pipeline（9）Parallel connection enters turbine low pressure cylinder（2）.
3. a kind of pumping thermal power plant unit quick response load system according to claim 1, it is characterised in that：The bypass
Valve is adjusted into vapour（10）Using control mode of surging, hydraulic oil is provided by Turbine Fire resistant Oil system.
4. a kind of pumping thermal power plant unit quick response load system according to claim 1, it is characterised in that：Medium pressure
Low communicating pipe butterfly valve（5）For controlling intermediate pressure cylinder exhaust steam pressure and low pressure (LP) cylinder initial steam pressure within operational envelope.
5. a kind of pumping thermal power plant unit quick response load system according to claim 1, it is characterised in that：The bypass
Valve is adjusted into vapour（10）Changed by aperture, changes the steam flow for entering low pressure (LP) cylinder, thus change the acting power output of low pressure (LP) cylinder,
And then change generator actual load.
6. a kind of pumping thermal power plant unit quick response load system according to claim 5, it is characterised in that：The bypass
Valve is adjusted into vapour（10）Aperture is controlled by the deviation that automatic generation amount controls AGC load instruction and actual generator load.
7. a kind of pumping thermal power plant unit quick response load system according to claim 1, it is characterised in that：Pass through setting
Reject steam adjusts valve（10）Through-current capacity, that is, reject steam pipeline（9）, control bypass adjustment valve（10）Aperture variation causes low
The variation of cylinder pressure throttle flow reaches the clipping influenced on load variations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810993921.0A CN108825316A (en) | 2018-08-29 | 2018-08-29 | A kind of steam extraction heat supply unit quick response load system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810993921.0A CN108825316A (en) | 2018-08-29 | 2018-08-29 | A kind of steam extraction heat supply unit quick response load system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825316A true CN108825316A (en) | 2018-11-16 |
Family
ID=64151635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810993921.0A Pending CN108825316A (en) | 2018-08-29 | 2018-08-29 | A kind of steam extraction heat supply unit quick response load system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825316A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153464A (en) * | 2021-04-09 | 2021-07-23 | 华电电力科学研究院有限公司 | Method for increasing load response speed of steam turbine set by using condensate system |
| CN114165304A (en) * | 2021-08-25 | 2022-03-11 | 国家能源集团国源电力有限公司 | Heat supply unit power adjusting method and device and electronic equipment |
| CN114233423A (en) * | 2022-02-24 | 2022-03-25 | 山东核电有限公司 | Control system and method for heating device of nuclear power plant |
| CN114542222A (en) * | 2022-02-24 | 2022-05-27 | 山东核电有限公司 | Control system and method for nuclear energy steam extraction and heat supply |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2363577A1 (en) * | 2010-02-24 | 2011-09-07 | Alstom Technology Ltd | Steam turbine plant |
| CN106979041A (en) * | 2017-04-01 | 2017-07-25 | 祝凤娟 | A kind of turbine low pressure cylinder high vacuum takes off the remodeling method that cylinder runs thermoelectricity decoupled system |
| CN107165687A (en) * | 2017-06-30 | 2017-09-15 | 国电科学技术研究院 | A kind of flexibility cuts off the extraction for heat supply system and control method of low pressure (LP) cylinder |
| CN206959102U (en) * | 2016-12-16 | 2018-02-02 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system is improved using electric boiler heat supply |
| CN108443859A (en) * | 2018-04-04 | 2018-08-24 | 山西格盟安全生产咨询有限公司 | A kind of feedwater flow control method adapting to load rapid fluctuations |
| CN208650931U (en) * | 2018-08-29 | 2019-03-26 | 山西格盟安全生产咨询有限公司 | A kind of steam extraction heat supply unit quick response load system |
-
2018
- 2018-08-29 CN CN201810993921.0A patent/CN108825316A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2363577A1 (en) * | 2010-02-24 | 2011-09-07 | Alstom Technology Ltd | Steam turbine plant |
| CN206959102U (en) * | 2016-12-16 | 2018-02-02 | 大唐东北电力试验研究所有限公司 | Cogeneration units depth peak regulation system is improved using electric boiler heat supply |
| CN106979041A (en) * | 2017-04-01 | 2017-07-25 | 祝凤娟 | A kind of turbine low pressure cylinder high vacuum takes off the remodeling method that cylinder runs thermoelectricity decoupled system |
| CN107165687A (en) * | 2017-06-30 | 2017-09-15 | 国电科学技术研究院 | A kind of flexibility cuts off the extraction for heat supply system and control method of low pressure (LP) cylinder |
| CN108443859A (en) * | 2018-04-04 | 2018-08-24 | 山西格盟安全生产咨询有限公司 | A kind of feedwater flow control method adapting to load rapid fluctuations |
| CN208650931U (en) * | 2018-08-29 | 2019-03-26 | 山西格盟安全生产咨询有限公司 | A kind of steam extraction heat supply unit quick response load system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153464A (en) * | 2021-04-09 | 2021-07-23 | 华电电力科学研究院有限公司 | Method for increasing load response speed of steam turbine set by using condensate system |
| CN114165304A (en) * | 2021-08-25 | 2022-03-11 | 国家能源集团国源电力有限公司 | Heat supply unit power adjusting method and device and electronic equipment |
| CN114165304B (en) * | 2021-08-25 | 2024-05-17 | 国家能源集团国源电力有限公司 | Power adjusting method and device of heat supply unit and electronic equipment |
| CN114233423A (en) * | 2022-02-24 | 2022-03-25 | 山东核电有限公司 | Control system and method for heating device of nuclear power plant |
| CN114233423B (en) * | 2022-02-24 | 2022-05-13 | 山东核电有限公司 | Control system and method for heating device of nuclear power plant |
| CN114542222A (en) * | 2022-02-24 | 2022-05-27 | 山东核电有限公司 | Control system and method for nuclear energy steam extraction and heat supply |
| CN114542222B (en) * | 2022-02-24 | 2023-10-31 | 山东核电有限公司 | Control system and method for nuclear energy steam extraction and heat supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208650931U (en) | A kind of steam extraction heat supply unit quick response load system | |
| CN108825316A (en) | A kind of steam extraction heat supply unit quick response load system | |
| WO2020181675A1 (en) | Flexible coal-fired power generation system, and operation method therefor | |
| WO2020181680A1 (en) | Solar-assisted coal-fired power generation system participating in primary frequency modulation, and control method therefor | |
| US4207842A (en) | Mixed-flow feedwater heater having a regulating device | |
| CN111577410B (en) | Gas turbine inlet air temperature control device and gas turbine inlet air temperature control method | |
| KR20210009279A (en) | Steam power generation plant, method for modifying steam power generation plant and method for operating steam power generation | |
| CN103452600B (en) | Steam turbine generating system with indirect regulation on regenerative side and primary frequency regulating method | |
| CN103900067A (en) | Power economized boiler | |
| CN209147060U (en) | A kind of power supply unit depth peak regulation system | |
| CN110986022A (en) | Steam extraction heating heat supply drainage system | |
| CN105464808A (en) | Gas-steam combined system and operation control method thereof | |
| CN105464731A (en) | Gas-steam combined system and operation control method thereof | |
| CN204716317U (en) | The interactive start up system of a kind of generator set | |
| CN104074561B (en) | Throttling adjusting system of cogeneration turbine unit and method of ordering power by heat | |
| CN216950586U (en) | Natural gas preheating system by using residual heat of residual boiler | |
| CN206131023U (en) | Stable control gas boiler coal air preheater low temperature corrosion's device | |
| CN108952859A (en) | A kind of system and method for promoting electricity power output regulating power based on steam flow | |
| CN104676250A (en) | Steam exhaust recycling and main pipe network dual-combination steam regulating system | |
| CN211454379U (en) | Condenser hot well liquid level control system for steam turbine | |
| CN207849346U (en) | Utilize the Steam Turbine Regenerative System of medium temperature flue gas condensed water | |
| CN206929010U (en) | Gas turbine inlet air heater and Combined-cycle Gas Turbine Unit | |
| CN218721778U (en) | Heat supply steam extraction system | |
| CN205245141U (en) | Air classification preboiler | |
| CN115095853B (en) | System and method for improving performance of flue gas waste heat utilization device of coal-fired boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |