CN205400828U - Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM - Google Patents
Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM Download PDFInfo
- Publication number
- CN205400828U CN205400828U CN201520957143.1U CN201520957143U CN205400828U CN 205400828 U CN205400828 U CN 205400828U CN 201520957143 U CN201520957143 U CN 201520957143U CN 205400828 U CN205400828 U CN 205400828U
- Authority
- CN
- China
- Prior art keywords
- steam
- unit
- heat boiler
- back pressure
- pressure
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM, it includes the backpressure unit, and the unit links to each other and constitutes joints generating set with taking out with fixed attention, and it provides three of steam with the backpressure unit and presses formula exhaust -heat boiler for taking out with fixed attention the unit to be equipped with behind E level gas turbine, utilizes height that exhaust -heat boiler produced in, low pressure steam to carry out " thermoelectric cold " coproduction, but wherein still including the switchover operation's of adoption piping -main scheme steam -water system, the high -pressure steam that exhaust -heat boiler produced is the main steam, and it gets into respectively takes out unit and backpressure unit acting electricity generation with fixed attention, middle pressure steam that exhaust -heat boiler produced can be used to get into take out with fixed attention that the unit generates electricity, external heat supply and provide subsidiary vapour to full factory, low pressure steam that exhaust -heat boiler produced is through the pipe connection in the deaeration in condenser ware of configuration and be used for the deoxidization to when two units move simultaneously, the low pressure steam that exhaust -heat boiler produced still mends and generates electricity into taking out the low pressure jar that congeals the unit.
Description
Technical field
The utility model relates to and a kind of take out solidifying and back pressure Unit erriger based on E level ALSTOM combined cycle, in particular by " one-to-one " multiaxis combustion engine of ALSTOMGT13E2 gas turbine, belong to gas-steam combined cycle set technical field.
Background technology
The steam turbine that internal combustion engine combined-cycle power plant of state adopts generally includes two kinds of principal modes, i.e. back pressure unit and extraction and condensing unit.The back pressure unit thermoelectricity when thermal efficiency is all higher, is desirable thermal power plant unit form, but its heating load is subject to the restriction of downstream user；Extraction condensing sets run mode is then relatively flexible, and heating parameter is higher, is particularly well-suited to factory steam user.
In combustion engine, F level Combined Cycle Unit gas turbine exhaust temperature can reach 584～640 DEG C.Leaving bigger leeway to steam circulation, steam circulation can adopt three pressures, the reheat vapor cycle that parameter is higher, and the efficiency of whole combined cycle is higher.And E level Combined Cycle Unit combustion engine exhaust temperature is generally lower than F level combustion engine, the highest V94.2 also only has 571 DEG C, less to the temperature drop space of steam circulation, therefore at present E level combustion engine generally adopt the relatively low double voltage type of parameter, without reheat vapor cycle, namely produce in waste heat boiler outside high pressure superheated steam, also produce low-pressure steam, fill into low pressure (LP) cylinder acting.
In heat supply steam turbine, back pressure unit steam discharge is completely used for heat supply, it does not have cold source energy, and therefore the thermal efficiency is high, the area that applicable thermic load is bigger and stable.In heat supply extraction and condensing unit, utilizing draws gas carries out heat supply, decreases part cold source energy, but the area that thermic load is bigger typically requires the heat supply simultaneously of several extraction and condensing unit.
In Combined cycle gas-steam turbine, owing to back pressure machine needs to regulate throttle flow to regulate load, and inefficient under low load condition of combustion engine, therefore 9E level combined cycle " one-to-one " extraction condensing back pressure press group there is no operation precedent at home.
Summary of the invention
The purpose of this utility model is in that the deficiency overcoming prior art to exist, and a kind of reasonable structural arrangement is provided, easy to use and reliable, utilize ALSTOMGT13E2 " one-to-one " multiaxis combustion engine to take out the feature coagulated with back pressure unit combined cycle to improve to realize unit whole efficiency, optimize coagulating and back pressure Unit erriger based on taking out of E level ALSTOM combined cycle of extraction condensing back pressure pressure Unit Commitment characteristic.
The purpose of this utility model completes by following technical solution, a kind of take out solidifying and back pressure Unit erriger based on E level ALSTOM combined cycle, it includes back pressure unit and is connected with extraction and condensing unit and forms cogeneration unit, the three pressure type waste heat boilers that steam is provided it are provided with into extraction and condensing unit and back pressure unit after E level gas turbine, utilize the high, medium and low voltage steam that waste heat boiler produces to carry out " thermoelectric cold " coproduction, wherein also include adopting boiler circuit piping-main scheme, changeable operation；
The high steam that described waste heat boiler produces is main steam, and it respectively enters extraction and condensing unit and back pressure unit acting generating；The middle pressure steam that waste heat boiler produces can be used for entering extraction and condensing unit carry out generating electricity, external heat supply and provide auxiliary vapour to full factory；The low-pressure steam that described waste heat boiler produces is connected to the vacuum dust cather of configuration and for deoxygenation by pipeline, and when two units run simultaneously, the low-pressure steam that described waste heat boiler produces also fills into the low pressure (LP) cylinder of extraction and condensing unit and generates electricity, and the low-pressure steam that simultaneously described waste heat boiler produces also drives vapour source as the lithium bromide chiller of configuration.
Vacuum dust cather described in the utility model has one and is arranged in 0 meter of of main building, described lithium bromide chiller has two, this lithium bromide chiller is to utilize part low-pressure saturated steam to carry out " cold and hot " coproduction, and remaining low-pressure saturated steam is connected to condenser by the discharge bypass of back pressure unit.
Back pressure unit described in the utility model is by steam discharge heating tube and condenser UNICOM, for discharging unnecessary steam；Described back pressure unit and extraction and condensing unit arrange seven bypasses altogether, and these seven bypasses are respectively as follows: the high, medium and low voltage bypass of extraction and condensing unit 100%, the steam discharge intermediate pressure by-pass of 10% high pressure turbine by of back pressure unit side, 10% intermediate pressure by-pass and 15% back pressure unit, the low voltage bypass of 100%；Described seven bypasses merge into high, medium and low voltage three roadside road mother pipe, access the condenser of extraction and condensing unit；Described 100%, 10%, 15% is waste heat boiler gas turbine duty ratio number of cases under performance guarantee operating mode.
This utility model has reasonable structural arrangement, easy to use and reliable, ALSTOMGT13E2 " one-to-one " multiaxis combustion engine is utilized to take out solidifying and back pressure unit combined cycle feature, by adopting waste heat boiler and the steam turbine of three pressure types, set up vacuum dust cather and reduce waste heat boiler inflow temperature to improve unit whole efficiency, by arranging the features such as the method optimizing extraction condensing back pressure pressure Unit Commitment characteristic of 7 bypasses.
Accompanying drawing explanation
Fig. 1 is that this utility model fires the main steam system figure of Combined cycle gas-steam turbine for 9E level.
Fig. 2 is that this utility model fires the medium pressure steam system figure of Combined cycle gas-steam turbine for 9E level.
Fig. 3 is that this utility model fires the steam vapour system figure of Combined cycle gas-steam turbine for 9E level.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail: a kind of take out solidifying and back pressure Unit erriger based on E level ALSTOM combined cycle, it includes back pressure unit and is connected with extraction and condensing unit and forms cogeneration unit, the three pressure type waste heat boilers that steam is provided it are provided with into extraction and condensing unit and back pressure unit after E level gas turbine, utilize the high, medium and low voltage steam that waste heat boiler produces to carry out " thermoelectric cold " coproduction, wherein also include adopting boiler circuit piping-main scheme, changeable operation；
The high steam that described waste heat boiler produces is main steam, and it respectively enters extraction and condensing unit and back pressure unit acting generating；The middle pressure steam that waste heat boiler produces can be used for entering extraction and condensing unit carry out generating electricity, external heat supply and provide auxiliary vapour to full factory；The low-pressure steam that described waste heat boiler produces is connected to the vacuum dust cather of configuration and for deoxygenation by pipeline, and when two units run simultaneously, the low-pressure steam that described waste heat boiler produces also fills into the low pressure (LP) cylinder of extraction and condensing unit and generates electricity, and the low-pressure steam that simultaneously described waste heat boiler produces also drives vapour source as the lithium bromide chiller of configuration.
Vacuum dust cather described in the utility model has one and is arranged in 0 meter of of main building, described lithium bromide chiller has two, this lithium bromide chiller is to utilize part low-pressure saturated steam to carry out " cold and hot " coproduction, and remaining low-pressure saturated steam is connected to condenser by the discharge bypass of back pressure unit.
Back pressure unit described in the utility model is by steam discharge heating tube and condenser UNICOM, for discharging unnecessary steam；Described back pressure unit and extraction and condensing unit arrange seven bypasses altogether, and these seven bypasses are respectively as follows: the high, medium and low voltage bypass of extraction and condensing unit 100%, the steam discharge intermediate pressure by-pass of 10% high pressure turbine by of back pressure unit side, 10% intermediate pressure by-pass and 15% back pressure unit, the low voltage bypass of 100%；Described seven bypasses merge into high, medium and low voltage three roadside road mother pipe, access the condenser of extraction and condensing unit；Described 100%, 10%, 15% is waste heat boiler gas turbine duty ratio number of cases under performance guarantee operating mode.
Shown in Fig. 1, the high steam of 2 waste heat boiler generations, after main steam pipe converges, respectively enters and takes out solidifying machine and back pressure machine acting generating.Two waste heat boiler main steam lines are drawn respectively and takes out solidifying machine and back pressure machine high pressure turbine by.Shown in Fig. 2, the middle pressure steam of 2 waste heat boiler generations, after female manifold closes, is partly into bubbling oxygen-eliminating device and carries out deoxygenation, be partly into #2 heat supply header, and the generating of solidifying machine is taken out in remaining entrance.Shown in Fig. 3, a low-pressure superheated steam part for 2 waste heat boiler generations is for the driving of lithium bromide chiller, and the generating of solidifying drive end unit is taken out in part entrance after female manifold closes.
Embodiment:
The flue gas that gas turbine produces enters waste heat boiler, produces the steam of high, normal, basic three kinds of parameters, and the quantity of steam that separate unit waste heat boiler produces is: high steam 220t/h, middle pressure steam 50t/h, low-pressure steam 25t/h.Main steam-water pipe adopts piping-main scheme design, changeable operation.High steam (7.733MPa, 503.2 DEG C) respectively enters takes out solidifying machine and back pressure machine for generating electricity；Middle pressure steam (1.3MPa, 300 DEG C) is partly into takes out solidifying machine for generating electricity, and is partly into heat supply header for external heat supply；Low-pressure saturated steam (0.69MPa, 182.2 DEG C) enters vacuum dust cather and moisturizing is carried out deoxygenation；Low-pressure superheated steam (0.32MPa, a 182.2 DEG C) part can enter takes out solidifying machine for generating electricity, and another part enters lithium bromide chiller.Back pressure machine steam discharge heating tube and condenser UNICOM, for discharging unnecessary steam.
Vacuum dust cather deoxygenation steam adopts low-pressure saturated steam, thus reducing waste heat boiler inflow temperature, and then reducing waste heat boiler exhaust gas temperature, improving unit efficiency.When performance guarantee, the exhaust gas temperature of two waste heat boilers is 89.2 DEG C and 94 DEG C, and active service E level Combined cycle gas-steam turbine waste heat boiler exhaust gas temperature is typically in about 95 DEG C.In addition, owing to vacuum dust cather operating pressure is in negative pressure, leaving water temperature saturation temperature relatively low (30 DEG C～60 DEG C), so can being arranged in main building 0 meter and will not causing the cavitation of solidifying pump intake by vacuum dust cather, reduce construction investment, bring conveniently to operating maintenance simultaneously.3, lithium bromide chiller is set
When back pressure machine isolated operation, low-pressure steam cannot utilize, and can pass through to bypass low-pressure superheater, reduce low-pressure superheated steam yield.Arranging lithium bromide chiller, it is possible to use part low-pressure saturated steam, carry out " cold and hot " coproduction, remaining part bypasses into condenser by back pressure machine steam discharge.
This utility model arranges combined launch bypass, press in Unit Commitment characteristic optimizing in extraction condensing back pressure, two units of full factory arrange 7 bypasses altogether, it is respectively as follows: and takes out the bypass of solidifying machine 100% high, medium and low voltage, back pressure pusher side 10% high pressure turbine by, 10% intermediate pressure by-pass, 15% back pressure machine steam discharge intermediate pressure by-pass, 100% low voltage bypass.7 bypasses merge into senior middle school's low pressure 3 roadside road mother pipe, access and take out solidifying machine condenser.(illustrating: 100%, 10%, 15% be waste heat boiler gas turbine load under performance guarantee operating mode)
Bypath system described in the utility model is run as follows:
1, back pressure unit sets 4 bypasses, and except low voltage bypass, all the other are the startup bypass that capacity is less；
2, the condenser of extraction and condensing unit only maximum draw gas operating mode time, it is possible to receive back pressure machine bypass startup steam discharge；
When 3, starting, high steam enters steam turbine power generation, and middle pressure steam directly feeds to header, and low-pressure steam only enters takes out the generating of solidifying machine；During chaser, high steam is to idle discharge vapour, and middle pressure steam continues heat supply, and low-pressure steam can Close All；
4, when exhaust temperature is relatively low, 15% back pressure machine steam discharge bypass can be passed through and discharge to condenser；
Extraction condensing back pressure press group cooperation, considerably increases motility and the heat capacity of unit heat supply.
Two maximum heat capacities of unit described in the utility model are 476t/h, and the method for operation in thermic load interval is:
1, when thermic load is 0～200t/h, solidifying machine is taken out in isolated operation；
2, when thermic load is 200～272t/h, take out solidifying machine reach maximum draw gas operating mode time, start back pressure machine；
3, when thermic load is 272t/h～476t/h, back pressure machine runs, and takes out solidifying machine and is adjusted by the amount of drawing gas；
This utility model E level ALSTOM combined cycle one is taken out a solidifying back pressure unit and is had following innovative achievements:
One, First 9E level combined cycle " one-to-one " extraction condensing back pressure press group, adopts ALSTOM combustion engine, presses waste heat boiler without afterburning three.
Two, main steam-water pipe adopts piping-main scheme design, two changeable operations of unit；
Three, vacuum dust cather is set, reduces back pressure unit waste heat boiler inflow temperature；
Four, solidifying pusher side and back pressure pusher side waste heat boiler exhaust gas temperature respectively 89.2 DEG C and 94 DEG C are taken out, lower than active service E level Combined cycle gas-steam turbine waste heat boiler exhaust gas temperature 95 DEG C；
Five, vacuum dust cather is arranged in main building 0 meter, reduces construction investment, brings conveniently to operating maintenance；
Six, lithium bromide chiller is set, it is possible to use the low-pressure superheated steam of low parameter carries out " cold and hot " coproduction, improves the economy of unit；
Seven, 7 bypasses are set, optimize Unit Commitment characteristic；
Eight, extraction condensing back pressure press group cooperation, considerably increases motility and the heat capacity of unit heat supply.
Claims (3)
1. coagulate and back pressure Unit erriger based on taking out of E level ALSTOM combined cycle, it includes back pressure unit and is connected with extraction and condensing unit and forms cogeneration unit, it is characterized in that: after E level gas turbine, be provided with the three pressure type waste heat boilers that steam is provided into extraction and condensing unit and back pressure unit, utilize the high, medium and low voltage steam that waste heat boiler produces to carry out " thermoelectric cold " coproduction, wherein also include adopting boiler circuit piping-main scheme, changeable operation；
The high steam that described waste heat boiler produces is main steam, and it respectively enters extraction and condensing unit and back pressure unit acting generating；The middle pressure steam that waste heat boiler produces can be used for entering extraction and condensing unit carry out generating electricity, external heat supply and provide auxiliary vapour to full factory；The low-pressure steam that described waste heat boiler produces is connected to the vacuum dust cather of configuration and for deoxygenation by pipeline, and when two units run simultaneously, the low-pressure steam that described waste heat boiler produces also fills into the low pressure (LP) cylinder of extraction and condensing unit and generates electricity, and the low-pressure steam that simultaneously described waste heat boiler produces also drives vapour source as the lithium bromide chiller of configuration.
2. according to claim 1 take out solidifying and back pressure Unit erriger based on E level ALSTOM combined cycle, it is characterized in that described vacuum dust cather has one and is arranged in 0 meter of of main building, described lithium bromide chiller has two, this lithium bromide chiller is to utilize part low-pressure saturated steam to carry out " cold and hot " coproduction, and remaining low-pressure saturated steam is connected to condenser by the discharge bypass of back pressure unit.
3. according to claim 1 take out solidifying and back pressure Unit erriger based on E level ALSTOM combined cycle, it is characterised in that described back pressure unit is by steam discharge heating tube and condenser UNICOM, for discharging unnecessary steam；Described back pressure unit and extraction and condensing unit arrange seven bypasses altogether, and these seven bypasses are respectively as follows: the high, medium and low voltage bypass of extraction and condensing unit 100%, the steam discharge intermediate pressure by-pass of 10% high pressure turbine by of back pressure unit side, 10% intermediate pressure by-pass and 15% back pressure unit, the low voltage bypass of 100%；Described seven bypasses merge into high, medium and low voltage three roadside road mother pipe, access the condenser of extraction and condensing unit；Described 100%, 10%, 15% is waste heat boiler gas turbine duty ratio number of cases under performance guarantee operating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957143.1U CN205400828U (en) | 2015-11-26 | 2015-11-26 | Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520957143.1U CN205400828U (en) | 2015-11-26 | 2015-11-26 | Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205400828U true CN205400828U (en) | 2016-07-27 |
Family
ID=56449324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520957143.1U Active CN205400828U (en) | 2015-11-26 | 2015-11-26 | Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205400828U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545386A (en) * | 2015-11-26 | 2016-05-04 | 中国能源建设集团浙江省电力设计院有限公司 | Extraction condensing and backpressure combined unit based on E-level ALSTOM combined cycle |
| CN108019733A (en) * | 2016-11-23 | 2018-05-11 | 林振娴 | A kind of computational methods for determining three discard heat boiler steam flows and parameter of discharging fume |
-
2015
- 2015-11-26 CN CN201520957143.1U patent/CN205400828U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545386A (en) * | 2015-11-26 | 2016-05-04 | 中国能源建设集团浙江省电力设计院有限公司 | Extraction condensing and backpressure combined unit based on E-level ALSTOM combined cycle |
| CN108019733A (en) * | 2016-11-23 | 2018-05-11 | 林振娴 | A kind of computational methods for determining three discard heat boiler steam flows and parameter of discharging fume |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9909496B2 (en) | Power generation system | |
| CN103644004B (en) | The cogeneration system of a kind of pair of turbine, combined cycle | |
| WO2015096414A1 (en) | High-pressure reheating gas-steam combined cycle power generation system and power generation method | |
| CN203685319U (en) | Double-turbine combined-cycle combined heat and power supplying system | |
| CN205028667U (en) | Thermoelectric cogeneration system of marine nuclear energy | |
| JP2015514179A (en) | Combined cycle power plant and method for operating a combined cycle power plant | |
| CN104832290A (en) | Distributed type energy resource flue gas waste heat deep utilization system | |
| CN104819054A (en) | Distributed energy resource waste heat utilization system | |
| CN201568948U (en) | Hot water circulating device | |
| CN205400828U (en) | Take out and congeal and backpressure integral unit based on combined cycle of E level ALSTOM | |
| CN101806448B (en) | Application of second type absorption type heat pump in heat exchange cycle system of power plant | |
| CN203594565U (en) | Steam-driven driving system for solar thermal power generation large power pump | |
| CN105545386A (en) | Extraction condensing and backpressure combined unit based on E-level ALSTOM combined cycle | |
| CN106014519B (en) | Steam turbine and Organic Rankine Cycle working medium turbine dual drive system | |
| CN101788141B (en) | Application of absorption type heat regenerator in regenerative circulation system of power plant | |
| CN204704010U (en) | A kind of bootstrap system of distributed energy | |
| CN202141033U (en) | Generating system of absorption heat pump steam exhaust recovery steam turbine improving 1% of generating efficiency | |
| CN204704011U (en) | A kind of distributed energy fume afterheat deep exploitation system | |
| CN108757163A (en) | A kind of turbine composite internal combustion engine residual heat using device and its control method | |
| CN209671021U (en) | Two-shipper backheat electricity generation system | |
| CN208831056U (en) | A kind of shunting recompression supercritical carbon dioxide co-generation unit | |
| CN103711670B (en) | The feed-water pump of circulating power station | |
| WO2020125097A1 (en) | System for recovering waste heat from jacket water of internal combustion engine by using absorption heat transformer | |
| CN206571540U (en) | A kind of fuel afterheat power/power generation all-in-one machine | |
| CN206571539U (en) | Implement power output or the system of generating using fuels and energy machine waste heat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |