CN201043493Y - Energy recovery device in association circulating power generation system - Google Patents
Energy recovery device in association circulating power generation system Download PDFInfo
- Publication number
- CN201043493Y CN201043493Y CNU2007201111454U CN200720111145U CN201043493Y CN 201043493 Y CN201043493 Y CN 201043493Y CN U2007201111454 U CNU2007201111454 U CN U2007201111454U CN 200720111145 U CN200720111145 U CN 200720111145U CN 201043493 Y CN201043493 Y CN 201043493Y
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- China
- Prior art keywords
- air
- energy
- outlet
- energy recovery
- air separation
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to an energy-recycling device in a combined cycle power generation system, which mainly comprises an air separation device, a gas turbine set and a steam turbine set. An energy-recycling turbine device is designed according to the temperature and pressure of the gas of the outlet of the compressor of the gas turbine set as well as the the pressure of the air needed by the air separation device, and the inlet of the energy-recycling turbine device is connected with the vent of the compressor of the gas turbine set via a pipeline; a heat exchanger is designed according to the temperature of the air of the outlet of the energy-recycling turbine device and the temperature of the nitrogen of the outlet of a nitrogen compressor in the air separation device, the air inlet of the heat exchanger is connected with the outlet of the energy-recycling turbine device via a pipeline, and the air outlet of the heat exchanger is connected with the compressed air inlet of the air separation device via a pipeline. The utility model also connects the energy-recycling turbine device with the shaft coupling of a generator shaft and is characterized by reasonable structural arrangement, simple process flow of fabrication, obvious energy-recycling and energy-saving effects, etc.
Description
Technical field
The utility model relates in a kind of integrated gasification combined cycle plants system device that the part pressurized air that extracts from the gas turbine blower outlet port carries out energy recovery and utilization when supplying with air separation facility.
Background technique
The integrated gasification combined cycle for power generation system is the advanced driven power generation system that Coal Gasification Technology and efficient combined cycle generation technology are combined.It is made up of coal gasification and purification process and gas-steam combined circulating generation process two-part, comprises air separation facility, gas turbine group and vapor wheel unit etc.In coal gasification and purification process, need oxygen that air separation facility provides as gasifying agent; Air separation facility sucks pressurized air, and output oxygen and nitrogen etc. need oxygen compressor (external compression flow process) and nitrogen compressor that oxygen and nitrogen pressure are reduced to the pressure of needs, supply gasification oven oxygen and re-injection nitrogen simultaneously.According to the source difference of raw air, air-separating plant can be divided into independent air separation facility, whole air separation facility and the whole air separation facility of part.Independent air separation facility is that all raw airs all are that the air compressor that air separation facility carries provides; Whole air separation facility is that all raw airs all are that the coaxial high-performance gas compressor of gas turbine provides, but it must have the air compressor of 50% air quantity that starts usefulness; The whole air separation facility of part air compressor that to be raw air carried by air separation facility and the coaxial high-performance gas compressor (generally accounting for 30%～50%) of gas turbine are united to be provided.The present invention be whole air separation facility of part and whole air separation facility at what use in the integrated gasification combined cycle for power generation system.Used gas turbine combination steam turbine group in gas-steam combined circulating generation process, wherein gas turbine group comprises compressor, firing chamber and decompressor; And the vapor wheel unit comprises exhaust heat boiler and vapor wheel unit.
In described integrated gasification combined cycle for power generation system, the pressurized air that gas compressor produced of gas turbine group is divided into two parts, and a part is supplied with the firing chamber of gas turbine group, and another part is extracted the air supply segregating unit and does raw air.Generally, the compressed-air actuated pressure in gas turbine group blower outlet place (～1.3Mpa) and temperature (～460 ℃) much larger than the required compressed-air actuated pressure of air-separating plant (～0.5Mpa) and temperature (～100 ℃).Usually the method that adopts is: gas turbine group blower outlet place's pressurized air and gas turbine group firing chamber inlet gas are carried out heat exchange, again by supplying with air separation facility behind throttling arrangement and the cooler, this moment is owing to compressed air inlet temperature height in the heat exchanger, so the technical difficulty of heat exchanger is big, cost is also higher.Handling by the throttling step-down simultaneously is waste to gas turbine group blower outlet place compressed air energy.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and provides a kind of structural configuration comparatively reasonable, and preparation process's flow process is simple, the energy recycle device in the tangible association circulating power generation system of energy recovery and energy-saving effect.
The purpose of this utility model is finished by following technical solution, it mainly is made up of air separation facility, gas turbine group and vapor wheel unit, blower outlet gas temperature and pressure according to gas turbine group, the pressure that reaches the air separation facility required air comes design energy recovery gas turbine device, and the import of this energy recovery turbine set and gas turbine group gas compressor relief opening link by pipeline; Nitrogen temperature design heat exchanger according to nitrogen compressor outlet in energy recovery turbine set outlet air temperature and the air separation facility, the air inlet of this heat exchanger is connected by pipeline with the energy recovery turbine set outlet, and air outlet slit is connected by pipeline with the air separation facility compressed air inlet.
Energy recovery turbine set described in the utility model is connected with coupling with generator shaft.
Characteristics such as the utility model belongs to a kind of improvement to prior art, and it is comparatively reasonable that it has structural configuration, and preparation process's flow process is simple, and energy recovery and energy-saving effect are obvious.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: as shown in the figure, the utility model mainly is made up of air separation facility 1, gas turbine group 2 and vapor wheel unit 3, gas compressor 4 Outlet Gas Temperatures and pressure according to gas turbine group 2, the pressure that reaches air separation facility 1 required air comes design energy recovery gas turbine device 9, and the import of this energy recovery turbine set 9 and gas turbine group 2 gas compressors 4 relief openings link by pipeline; Nitrogen temperature design heat exchanger 11 according to nitrogen compressor (not shown) outlet in energy recovery turbine set 9 outlet air temperatures and the air separation facility 1, the air inlet of this heat exchanger 11 is connected by pipeline with energy recovery turbine set 1 outlet, and air outlet slit is connected by pipeline with air separation facility 1 compressed air inlet.
Energy recovery turbine set 9 described in the utility model is connected with coupling with generator shaft, can improve the efficient of whole generating system effectively, has obtained energy recovery preferably and has utilized effect.
Claims (2)
1. the energy recycle device in the association circulating power generation system, it mainly is made up of air separation facility, gas turbine group and vapor wheel unit, it is characterized in that gas compressor (4) Outlet Gas Temperature and pressure according to gas turbine group (2), the pressure that reaches air separation facility (1) required air comes design energy recovery gas turbine device (9), and import of this energy recovery turbine set (9) and gas turbine group (2) gas compressor (4) relief opening link by pipeline; Nitrogen temperature design heat exchanger (11) according to nitrogen compressor outlet in energy recovery turbine set (9) outlet air temperature and the air separation facility (1), the air inlet of this heat exchanger (11) is connected by pipeline with energy recovery turbine set (1) outlet, and air outlet slit is connected by pipeline with air separation facility (1) compressed air inlet.
2. the energy recycle device in the association circulating power generation system according to claim 1 is characterized in that described energy recovery turbine set (9) is connected with coupling with generator shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201111454U CN201043493Y (en) | 2007-06-22 | 2007-06-22 | Energy recovery device in association circulating power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201111454U CN201043493Y (en) | 2007-06-22 | 2007-06-22 | Energy recovery device in association circulating power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043493Y true CN201043493Y (en) | 2008-04-02 |
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ID=39258387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201111454U Expired - Lifetime CN201043493Y (en) | 2007-06-22 | 2007-06-22 | Energy recovery device in association circulating power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043493Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100497902C (en) * | 2007-06-22 | 2009-06-10 | 杭州杭氧透平机械有限公司 | Energy reclaiming method and device for coal combination circulation generating system |
| CN106246252A (en) * | 2016-09-13 | 2016-12-21 | 中国华能集团公司 | A kind of peak load stations integrating IGCC and supercritical unit and peak regulating method |
| CN107524521A (en) * | 2017-09-13 | 2017-12-29 | 北京黄铉动力科技有限公司 | Turbo-compressor air engine |
-
2007
- 2007-06-22 CN CNU2007201111454U patent/CN201043493Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100497902C (en) * | 2007-06-22 | 2009-06-10 | 杭州杭氧透平机械有限公司 | Energy reclaiming method and device for coal combination circulation generating system |
| CN106246252A (en) * | 2016-09-13 | 2016-12-21 | 中国华能集团公司 | A kind of peak load stations integrating IGCC and supercritical unit and peak regulating method |
| CN106246252B (en) * | 2016-09-13 | 2018-06-26 | 中国华能集团公司 | A kind of peak load stations and peak regulating method for integrating IGCC and supercritical unit |
| CN107524521A (en) * | 2017-09-13 | 2017-12-29 | 北京黄铉动力科技有限公司 | Turbo-compressor air engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080402 |