CN203717127U - Gas turbine generation system - Google Patents
Gas turbine generation system Download PDFInfo
- Publication number
- CN203717127U CN203717127U CN201320827672.0U CN201320827672U CN203717127U CN 203717127 U CN203717127 U CN 203717127U CN 201320827672 U CN201320827672 U CN 201320827672U CN 203717127 U CN203717127 U CN 203717127U
- Authority
- CN
- China
- Prior art keywords
- turbine
- regenerator
- gas
- low
- combustion
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a gas turbine generation system using low-heat-value gas. The gas turbine generation system comprises a gas turbine, a heat recycling system and a series of pipelines, wherein the gas turbine comprises a low-pressure gas compressor, a high-pressure gas compressor, a combustion chamber, a high-pressure turbine, a low-pressure turbine and a power turbine; the heat recycling system comprises a first heat regenerator, a second heat regenerator and an intercooled heat exchanger which is respectively connected with the low-pressure gas compressor and the high-pressure gas compressor through pipelines; the second heat regenerator is respectively connected with the high-pressure gas compressor and the combustion chamber through pipelines; the combustion chamber, the high-pressure turbine, the low-pressure turbine and the power turbine are connected through pipelines in sequence; the first heat regenerator is respectively connected with the power turbine and the second heat regenerator through pipelines. According to the gas turbine generation system, the low-heat-value gas with a heat value of 1.0-2.0MJ/kg can be used for combustion, which is favorable for sufficiently utilizing heat energy and reducing pollutant emission.
Description
Technical field
The utility model belongs to mechanical field, particularly a kind of gas turbine generating system.
Background technique
In coal and petrochemical industry project, often have a large amount of low-BTU gass to produce, its composition is that a large amount of nitrogen, carbon dioxide, water vapors mixes the inflammable gas of minute quantity, as methane, carbon monoxide and hydrogen etc., is also often mixed with the toxic and harmfuls such as hydrogen sulfide.If these low-BTU gass are directly discharged, can affect surrounding environment safety, the general forms such as torch burning that adopt are done innocuity treatment more, but have also wasted a large amount of heat energy, have caused resource and energy waste.
The low-BTU gas of general 1.0-2.0MJ/kg is difficult for lighting in normal temperature situation, is difficult for forming stable combustion process.Particularly, in its oxidizing fire course of reaction, air mass flow is much smaller than gas flow, and this is and remarkable different place of common high-energy fuel combustion process.
The thermal ignition of low calorie fuels and steady combustion, generally must coordinate certain heat recovery as the warm of reactant, to improve combustion reaction temperature, burning carried out rapidly and thoroughly.
Gas turbine is heat energy directly to be changed into the compact high efficient turbomachinery of mechanical energy.General gas turbine is that combustion-supporting air is compressed, and then in firing chamber, sprays into high-energy fuel burning heat release, promotes turbine acting.
The gas turbine process that the compression combustion-supporting air of take is master is not suitable with the little feature of combustion air flow in low calorie fuels burning.General gas turbine temperature of exhaust fume is higher, if adopt air for supporting combustion, can cause flue gas to take away sensible heat larger, the requirement of the recovery waste heat that also do not reach capacity.
Model utility content
Above-mentioned technical problem based on existing in prior art.The purpose of this utility model is to have proposed a kind of gas turbine generating system, can improve combustion machine whole efficiency.
The utility model provides a kind of gas turbine generating system, comprise: gas turbine, heat recovery system and a series of pipeline, wherein, described gas turbine comprises that low pressure compressor, high-pressure compressor, firing chamber, high pressure turbine, low pressure turbine and power turbine form, and described heat recovery system comprises the first regenerator, the second regenerator and middle cold heat exchanger; Described middle cold heat exchanger is connected with low pressure compressor, high-pressure compressor respectively by pipeline, the second regenerator is connected with high-pressure compressor, firing chamber respectively by pipeline, between firing chamber, high pressure turbine, low pressure turbine and power turbine, by pipeline, be connected in turn, the first regenerator is connected with power turbine, the second regenerator respectively by pipeline.
Further, gas turbine generating system, also comprise: the low calorie fuels of being supplied with by pipeline pass through successively low pressure compressor, in cold heat exchanger and high-pressure compressor, be compressed to 800-1000kPa and 300 ℃, low calorie fuels after compression heats up is through the second regenerator, by high-temperature flue gas, be preheating to 550 ℃, then temperature of exhaust fume be cooled to 300 ℃; Now oxygen enrichment or pure oxygen combustion-supporting gas are preheating to 600 ℃ through the first regenerator, and the low calorie fuels after preheating and combustion-supporting gas enter firing chamber and carry out oxidizing fire reaction; Combustion chamber high temperature smoke evacuation after high pressure turbine, low pressure turbine and power turbine, drives high pressure mechanism of qi and low pressure compressor to rotate successively, and outside output shaft work, drives generator operation simultaneously.
Further, the flue-gas temperature that the power turbine of gas turbine generating system is discharged is 600 ℃, through after the first regenerator and the second regenerator, is reduced to 300 ℃ successively, for the thermal source of preboiler or absorption refrigeration unit..
Further, the low-temperature receiver of the middle cold heat exchanger of gas turbine generating system is specially cooling water, air is cooling or absorption refrigeration unit low-temperature receiver.
Further, exotic material porous structure is set, for smooth combustion in the firing chamber of gas turbine generating system.
Gas turbine generating system of the present utility model has following effect: make full use of low calorie fuels heat energy, efficiency is high, remarkable in economical benefits; According to low calorie fuels combustion reaction feature, carry out sufficient backheat operation, improve low calorie fuels and combustion-supporting gas preheating temperature, realize stable thermal ignition and combustion process; According to low calorie fuels combustion reaction feature, adopt compress fuel gas mode and in cold backheat, improved Gas Turbine Output and efficiency; According to low calorie fuels combustion reaction feature, adopt oxygen enrichment or pure oxygen as combustion-supporting gas, improve oxygen concentration in mixed gas the firing chamber in, reduce flue gas flow, and then reduced the system heat dissipating capacity of discharging fume, improved system effectiveness; According to low calorie fuels combustion reaction feature, adopt the backheat circulation of preheating low calorie fuels after first preheated-combustion-supporting gas, make combustion-supporting gas and fuel can be preheating to more consistent entry of combustion chamber temperature again of higher while, reached the effect of abundant recovery preheating, also make entry of combustion chamber igniting place can not be subject to larger cold airflow and impact, contribute to stable ignition and burning; Temperature of exhaust fume is lower, has realized heat energy and has made full use of.According to low calorie fuels combustion reaction feature, in firing chamber, configuration increases the exotic material porous structure of swept area, reaches steady fuel efficiency fruit.
Accompanying drawing explanation
Fig. 1 is a kind of gas turbine generating system structural representation of the present utility model.
In figure, 1, low pressure compressor, 2, high-pressure compressor, 3, firing chamber, 4, high pressure turbine, 5, low pressure turbine, 6, power turbine, 7, regenerator, 8, regenerator, 9, middle cold heat exchanger, 10, low calorie fuels, 11, flue gas, 12, oxygen enrichment or pure oxygen combustion-supporting gas.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, is to be noted that described embodiment is only intended to be convenient to understanding of the present utility model, and it is not played to any restriction effect.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model provides a kind of gas turbine generating system, this gas turbine generating system is used low calorie fuels, comprise: the gas turbine, heat recovery system and the respective line that use low calorie fuels, wherein, gas turbine has comprised that low pressure compressor 1, high-pressure compressor 2, firing chamber 3, high pressure turbine 4, low pressure turbine 5 and power turbine 6 form.Heat recovery system comprises regenerator 7, regenerator 8 and middle cold heat exchanger 9.Middle cold heat exchanger 9 is connected with low pressure compressor 1, high-pressure compressor 2 respectively by pipeline, regenerator 8 is connected with high-pressure compressor 2, firing chamber 3 respectively by pipeline, between firing chamber 3, high pressure turbine 4, low pressure turbine 5 and power turbine 6, by pipeline, be connected in turn, in addition, regenerator 7 links together respectively and between power turbine 6, regenerator 8 by pipeline, and regenerator 7 receives oxygen enrichment or pure oxygen combustion-supporting gas 12 by pipeline.The workflow of concrete gas turbine generating system is as follows:
The low calorie fuels of being supplied with by pipeline pass through successively low pressure compressor 1, in cold heat exchanger 9 and high-pressure compressor 2, be compressed to 800-1000kPa and 300 ℃ of left and right, in the employing here, cold heat exchanger 9 can reduce the power consumption of high-pressure compressor 2.
Low calorie fuels after compression heats up, through regenerator 8, is preheating to 550 ℃ of left and right by high-temperature flue gas, then temperature of exhaust fume is cooled to 300 ℃ of left and right.
Now oxygen enrichment or pure oxygen combustion-supporting gas are through regenerator 7, be preheating to 600 ℃ of left and right, simultaneously, because combustion-supporting gas amount is smaller, particularly in the situation that adopting pure oxygen, be only 5% left and right of volume of fuel flow, the temperature of smoke evacuation in regenerator 7 fallen not quite, fume side outlet temperature can maintain more than 550 ℃.
Low calorie fuels after preheating and combustion-supporting gas enter firing chamber 3 and carry out oxidizing fire reaction.Because the velocity of propagation of flame of low calorie fuels is lower, combustion reaction is carried out with a kind of form of dispersed combustion, do not need traditional eddy current flame holder, in firing chamber, increase the exotic material of swept area porous structure 3 interior can adding, to obtain better steady fuel efficiency fruit.
Firing chamber 3 high-temperature smoke dischargings after high pressure turbine 4, low pressure turbine 5 and power turbine 6, drive high pressure mechanism of qi 2 and low pressure compressor 1 to rotate successively, outwards export shaft work simultaneously, drive the equipment operations such as generator.
The flue-gas temperature that power turbine 6 is discharged is 600 ℃ of left and right, after passing through successively regenerator 7 and regenerator 8, is reduced to 300 ℃ of left and right, can be used as the thermal source of preboiler or absorption refrigeration unit.
The low-temperature receiver of middle cold heat exchanger 9 can adopt cooling water, air is cooling or absorption refrigeration unit low-temperature receiver.
Gas turbine generating system of the present utility model has following effect: make full use of low calorie fuels heat energy, efficiency is high, remarkable in economical benefits; According to low calorie fuels combustion reaction feature, carry out sufficient backheat operation, improve low calorie fuels and combustion-supporting gas preheating temperature, realize stable thermal ignition and combustion process; According to low calorie fuels combustion reaction feature, adopt compress fuel gas mode and in cold backheat, improved Gas Turbine Output and efficiency; According to low calorie fuels combustion reaction feature, adopt oxygen enrichment or pure oxygen as combustion-supporting gas, improve oxygen concentration in mixed gas the firing chamber in, reduce flue gas flow, and then reduced the system heat dissipating capacity of discharging fume, improved system effectiveness; According to low calorie fuels combustion reaction feature, adopt the backheat circulation of preheating low calorie fuels after first preheated-combustion-supporting gas, make combustion-supporting gas and fuel can be preheating to more consistent entry of combustion chamber temperature again of higher while, reached the effect of abundant recovery preheating, also make entry of combustion chamber igniting place can not be subject to larger cold airflow and impact, contribute to stable ignition and burning; Temperature of exhaust fume is lower, has realized heat energy and has made full use of.According to low calorie fuels combustion reaction feature, in firing chamber, configuration increases the exotic material porous structure of swept area, reaches steady fuel efficiency fruit.
Describing is above only a specific embodiment of the present utility model, and obviously anyone modification of doing of related domain or local replacement under the technical solution of the utility model instructs, all belong to the scope that the utility model claims limit.
Claims (5)
1. a gas turbine generating system, it is characterized in that, comprise: gas turbine, heat recovery system and a series of pipeline, wherein, described gas turbine comprises that low pressure compressor, high-pressure compressor, firing chamber, high pressure turbine, low pressure turbine and power turbine form, and described heat recovery system comprises the first regenerator, the second regenerator and middle cold heat exchanger; Described middle cold heat exchanger is connected with low pressure compressor, high-pressure compressor respectively by pipeline, the second regenerator is connected with high-pressure compressor, firing chamber respectively by pipeline, between firing chamber, high pressure turbine, low pressure turbine and power turbine, by pipeline, be connected in turn, the first regenerator is connected with power turbine, the second regenerator respectively by pipeline.
2. gas turbine generating system as claimed in claim 1, it is characterized in that, also comprise: the low calorie fuels of being supplied with by pipeline pass through successively low pressure compressor, in cold heat exchanger and high-pressure compressor, be compressed to 800-1000kPa and 300 ℃, low calorie fuels after compression heats up is through the second regenerator, by high-temperature flue gas, be preheating to 550 ℃, then temperature of exhaust fume be cooled to 300 ℃; Now oxygen enrichment or pure oxygen combustion-supporting gas are preheating to 600 ℃ through the first regenerator, and the low calorie fuels after preheating and combustion-supporting gas enter firing chamber and carry out oxidizing fire reaction; Combustion chamber high temperature smoke evacuation after high pressure turbine, low pressure turbine and power turbine, drives high pressure mechanism of qi and low pressure compressor to rotate successively, and outside output shaft work, drives generator operation simultaneously.
3. gas turbine generating system as claimed in claim 1, it is characterized in that, the flue-gas temperature that described power turbine is discharged is 600 ℃, successively through after the first regenerator and the second regenerator, be reduced to 300 ℃, for the thermal source of preboiler or absorption refrigeration unit..
4. gas turbine generating system as claimed in claim 1, is characterized in that, the low-temperature receiver of described middle cold heat exchanger is specially cooling water, air is cooling or absorption refrigeration unit low-temperature receiver.
5. gas turbine generating system as claimed in claim 1, is characterized in that, exotic material porous structure is set, for smooth combustion in described firing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320827672.0U CN203717127U (en) | 2013-12-13 | 2013-12-13 | Gas turbine generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320827672.0U CN203717127U (en) | 2013-12-13 | 2013-12-13 | Gas turbine generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717127U true CN203717127U (en) | 2014-07-16 |
Family
ID=51156289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320827672.0U Expired - Fee Related CN203717127U (en) | 2013-12-13 | 2013-12-13 | Gas turbine generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717127U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670712A (en) * | 2013-12-13 | 2014-03-26 | 中国大唐集团科学技术研究院有限公司 | Power generation system of combustion gas turbine |
| WO2022156523A1 (en) * | 2021-01-25 | 2022-07-28 | 李华玉 | Dual-fuel gas-steam combined cycle power device |
| WO2022156522A1 (en) * | 2021-01-25 | 2022-07-28 | 李华玉 | Dual-fuel high-temperature heat source and dual-fuel gas turbine apparatus |
| WO2022206085A1 (en) * | 2021-03-29 | 2022-10-06 | 李华玉 | Dual-fuel combined cycle power device |
-
2013
- 2013-12-13 CN CN201320827672.0U patent/CN203717127U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670712A (en) * | 2013-12-13 | 2014-03-26 | 中国大唐集团科学技术研究院有限公司 | Power generation system of combustion gas turbine |
| CN103670712B (en) * | 2013-12-13 | 2017-01-04 | 中国大唐集团科学技术研究院有限公司 | A kind of gas turbine generating system |
| WO2022156523A1 (en) * | 2021-01-25 | 2022-07-28 | 李华玉 | Dual-fuel gas-steam combined cycle power device |
| WO2022156522A1 (en) * | 2021-01-25 | 2022-07-28 | 李华玉 | Dual-fuel high-temperature heat source and dual-fuel gas turbine apparatus |
| WO2022206085A1 (en) * | 2021-03-29 | 2022-10-06 | 李华玉 | Dual-fuel combined cycle power device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201152197Y (en) | Gas turbine power generation system without carbon dioxide emission | |
| US10060301B2 (en) | Gas turbine unit operating mode and design | |
| RU2007140880A (en) | HEATED POWER STATION WITH REDUCED CO2 CONTENT | |
| CN203717127U (en) | Gas turbine generation system | |
| CN102031126A (en) | Dry quenching method | |
| CN101566104B (en) | Method and device for zero emission of carbon dioxide by utilizing liquid hydrogen condensation | |
| CN102061994A (en) | Method and device for indirectly promoting medium and low temperature solar heat energy grades | |
| CN102305109B (en) | Oxygen enrichment-coal gasification flue gas reheating combined cycle power system | |
| CN105695649B (en) | Distributed energy resource system based on blast furnace ironmaking | |
| CN102767404A (en) | System and method of gas turbine for utilizing low-concentration gas | |
| CN104564345A (en) | Carbon dioxide zero-emission system of gas turbine | |
| JP2010276013A (en) | Power generation device | |
| CN103670712B (en) | A kind of gas turbine generating system | |
| CN112576327A (en) | Efficient ultra-low emission coal-fired power generation system and power circulation method thereof | |
| CN109681325B (en) | Natural gas-supercritical CO2 combined cycle power generation process | |
| CN101705844A (en) | Power generating system of coal-gas turbine without carbon emission and method thereof | |
| CN203098053U (en) | Chemical hydrogen-rich gas collecting and utilizing system | |
| CN205501337U (en) | Distributed energy system based on blast furnace ironmaking | |
| CN101566101B (en) | Power generation method of rotary-catalytic regenerative-type low-calorific-value gas turbine | |
| CN104482547B (en) | A kind of alkali metal thermo-electric direct conversion device with industrial waste gas as thermal source | |
| CN205779066U (en) | A kind of combined cycle power plant utilizing tail of semi coke to generate electricity | |
| CN210118199U (en) | IGCC thermoelectric system for realizing deep utilization of flue gas waste heat and cooling of inlet air | |
| CN210087420U (en) | Biomass gasification organic Rankine cycle system | |
| CN101545402A (en) | Method for generating electricity by switching catalytic combustion gas turbine system | |
| CN106050421B (en) | Carry the carbon dioxide building energy supplying system of fuel |
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: 20140716 Termination date: 20171213 |