CN202643715U - Gas steam combined cycle power generation process waste heat utilization system - Google Patents
Gas steam combined cycle power generation process waste heat utilization system Download PDFInfo
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- CN202643715U CN202643715U CN2012203183528U CN201220318352U CN202643715U CN 202643715 U CN202643715 U CN 202643715U CN 2012203183528 U CN2012203183528 U CN 2012203183528U CN 201220318352 U CN201220318352 U CN 201220318352U CN 202643715 U CN202643715 U CN 202643715U
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- waste heat
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- combined cycle
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model discloses a gas steam combined cycle power generation process waste heat utilization system which comprises a deaerator, a feed pump, a gas cooler, a waste heat boiler, a primary gas compressor and a secondary gas compressor, wherein a water outlet of the deaerator is connected with a water pipe inlet of the gas cooler through the feed pump, a water pipe outlet of the gas cooler is connected with a water inlet of the waste heat boiler, a gas outlet of the primary gas compressor is connected with a gas pipe inlet of the gas cooler, and a gas outlet of the gas cooler is connected with a gas inlet of the secondary gas compressor. The gas steam combined cycle power generation process waste heat utilization system achieves heat exchange of high temperature and high pressure gas and low temperature waste heat boiler feed watering, reduces gas temperature, simultaneously improves feed-water temperature of the waste heat boiler, can recycle high temperature gas heat to the largest degree, can not only ensure normal operation of the secondary gas compressor, but also improve overall thermal efficiency of the combined cycle power plant (CCPP ) process.
Description
Technical field
The utility model relates to the smelting iron and steel technical field, is specifically related to a kind of gas combustion-gas vapor combined cycle process waste and utilizes system.
Technical background
At present, China is maximum in the world Iron and Steel Production state.In steel manufacture process, can supervene a large amount of low combustion value furnace gas, except Iron and Steel Production needs, still have a large amount of blast furnace gas residues.Blast furnace gas is inflammable, poisonous, can cause serious environmental pollution and potential safety hazard such as irrational utilization.CCPP (Combined Cycle Power Plant, gas combustion-gas vapor combined cycle) technique is first low-heat value gas to be pressurizeed through gas compressor, with the air mixed burning of delivering to the combustion chamber, generate the gas of high temperature, high pressure, through internal combustion turbine expansion acting, propelling gas turbine engine drives compressor and external load high speed rotating, and the weary gas of discharging from internal combustion turbine causes waste heat boiler, produce high temperature, high pressure steam driving steam turbine, and drive the generator generating with internal combustion turbine.
CCPP technique is high because of generating efficiency, startup is fast, pollute the advantages such as low, is more and more paid attention to, and uses increasingly extensive.In CCPP technique, coal gas need to be carried out stage compression and become high pressure gas, in this process, can follow the generation of some heats, yet traditional CCPP technique is not carried out effective recycling to it, cause CCPP technique overall thermal utilization ratio on the low side, affect generating efficiency.
The utility model content
The purpose of this utility model is for above-mentioned technical problem, provide a kind of gas combustion-gas vapor combined cycle process waste to utilize system, this system is under the prerequisite that guarantees the normal operation of coal gas compression system, can reclaim to greatest extent the coal gas of high temperature heat, and utilize this heat energy heating boiler feedwater, improve CCPP technique overall thermal efficient.
For realizing this purpose, the designed gas combustion-gas vapor combined cycle process waste of the utility model utilizes system, it is characterized in that: comprise deoxygenator, service pump, gas cooler, waste heat boiler, one-level gas compressor and secondary gas compressor, wherein, the water outlet of described deoxygenator is by the water pipe import of service pump connection gas cooler, and the pipe outlet of gas cooler connects the water-in of waste heat boiler; The air outlet of described one-level gas compressor connects the tracheal entrance of gas cooler, and the tracheae outlet of gas cooler connects the inlet mouth of secondary gas compressor.
Further, it also comprises three grades of gas compressors, and the air outlet of described secondary gas compressor connects the inlet mouth of three grades of gas compressors.
The utility model is by arranging gas cooler, realize the thermal exchange of High Temperature High Pressure coal gas and low temperature exhaust heat oiler feed, reduced gas temperature, improved simultaneously the feed temperature of waste heat boiler, can recycle to greatest extent the coal gas of high temperature heat, the normal operation of secondary coal gas compression system can be guaranteed, the overall thermal efficient of CCPP technique can be improved again.The utility model system is simple, easy to operate, investment cost is low, can be widely used in CCPP technique generating set and gas-turbine generator set.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Wherein, 1-deoxygenator, 2-service pump, 3-gas cooler, 4-waste heat boiler, 5-one-level gas compressor, 6-secondary gas compressor, 7-three grades of gas compressors.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Gas combustion-gas vapor combined cycle process waste as shown in Figure 1 utilizes system, comprise deoxygenator 1, service pump 2, gas cooler 3, waste heat boiler 4, one-level gas compressor 5 and secondary gas compressor 6, wherein, the water outlet of deoxygenator 1 is by the water pipe import of service pump 2 connection gas coolers 3, and the pipe outlet of gas cooler 3 connects the water-in of waste heat boiler 4; The air outlet of one-level gas compressor 5 connects the tracheal entrance of gas cooler 3, and the tracheae outlet of gas cooler 3 connects the inlet mouth of secondary gas compressor 6.
In the technique scheme, it also comprises three grades of gas compressors 7, and the air outlet of secondary gas compressor 6 connects the inlet mouth of three grades of gas compressors 7.
In the utility model when work: the water outlet of deoxygenator 1 is connected to the water pipe import of gas cooler 3 by pipeline through service pump 2, and the pipe outlet of gas cooler 3 is connected with the water-in pipeline of waste heat boiler 4.Waste heat boiler 4 low pressure feed waters flow out from deoxygenator 1 water outlet, boost through service pump 2, make low pressure feed water become high-pressure feed water, deliver to the water pipe import of gas cooler 3.Gas cooler 3 utilizes heat heating waste heat boiler 4 high-pressure feed waters of coal gas of high temperature, and high-pressure feed water is heated up, and the waste heat boiler high-pressure feed water after being heated is delivered to waste heat boiler 4 by pipeline.In waste heat boiler 4, the high-temperature flue gas that internal combustion turbine is discharged further adds the feedwater of waste heat boiler thermal high, makes its vaporization, promotes the turbine driven set generating.The gas cooler 3 water side-entrances general temperature that feeds water is 150 ~ 160 ℃, and gas cooler 3 pipe outlet feed temperatures are generally 225 ~ 235 ℃.The air outlet of one-level gas compressor 5 is connected to the tracheal entrance of gas cooler 3 by pipeline, and the tracheae outlet of gas cooler 3 is connected to the inlet mouth of secondary gas cooler 6 by pipeline.It is compressed to enter one-level gas compressor 5 from the normal temperature low-heat value gas of gaspipe network, and when pressure raise, gas temperature is corresponding rising also, is generally 240 ~ 260 ℃.Afterwards, coal gas of high temperature enters gas cooler 3 by pipeline, carries out thermal exchange with low temperature exhaust heat boiler hot high-pressure feed water in gas cooler 3, and waste heat boiler thermal high feed temperature raises, and coal gas of high temperature pressure decreased, temperature reduce.By the coal gas of gas cooler 3 decrease temperature and pressure, enter secondary gas cooler 6 from the outlet of the tracheae of gas cooler 3 through pipeline, be further compressed at secondary gas cooler 6, become qualified High Temperature High Pressure coal gas after, send into the gas turbine combustion generating.
The content that this specification sheets is not described in detail belongs to the known prior art of this area professional and technical personnel.
Claims (2)
1. a gas combustion-gas vapor combined cycle process waste utilizes system, it is characterized in that: comprise deoxygenator (1), service pump (2), gas cooler (3), waste heat boiler (4), one-level gas compressor (5) and secondary gas compressor (6), wherein, the water outlet of described deoxygenator (1) is by the water pipe import of service pump (2) connection gas cooler (3), and the pipe outlet of gas cooler (3) connects the water-in of waste heat boiler (4); The air outlet of described one-level gas compressor (5) connects the tracheal entrance of gas cooler (3), and the tracheae outlet of gas cooler (3) connects the inlet mouth of secondary gas compressor (6).
2. gas combustion-gas vapor combined cycle process waste according to claim 1 utilizes system, it is characterized in that: it also comprises three grades of gas compressors (7), and the air outlet of described secondary gas compressor (6) connects the inlet mouth of three grades of gas compressors (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203183528U CN202643715U (en) | 2012-07-03 | 2012-07-03 | Gas steam combined cycle power generation process waste heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203183528U CN202643715U (en) | 2012-07-03 | 2012-07-03 | Gas steam combined cycle power generation process waste heat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643715U true CN202643715U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203183528U Expired - Fee Related CN202643715U (en) | 2012-07-03 | 2012-07-03 | Gas steam combined cycle power generation process waste heat utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195577A (en) * | 2013-04-11 | 2013-07-10 | 重庆大学 | Air intake temperature regulating system of gas turbine |
| CN114941959A (en) * | 2022-07-21 | 2022-08-26 | 秦皇岛信能能源设备有限公司 | Waste heat island system based on wheel hub production line |
-
2012
- 2012-07-03 CN CN2012203183528U patent/CN202643715U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195577A (en) * | 2013-04-11 | 2013-07-10 | 重庆大学 | Air intake temperature regulating system of gas turbine |
| CN103195577B (en) * | 2013-04-11 | 2015-08-26 | 重庆大学 | Gas turbine air inlet temperature regulating system |
| CN114941959A (en) * | 2022-07-21 | 2022-08-26 | 秦皇岛信能能源设备有限公司 | Waste heat island system based on wheel hub production line |
| CN114941959B (en) * | 2022-07-21 | 2022-10-04 | 秦皇岛信能能源设备有限公司 | Waste heat island system based on wheel hub production line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20170703 |