CN101078372A - Wet middle cooling-wet rear cooling-backheating cycle combustion turbine - Google Patents
Wet middle cooling-wet rear cooling-backheating cycle combustion turbine Download PDFInfo
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- CN101078372A CN101078372A CN 200710072426 CN200710072426A CN101078372A CN 101078372 A CN101078372 A CN 101078372A CN 200710072426 CN200710072426 CN 200710072426 CN 200710072426 A CN200710072426 A CN 200710072426A CN 101078372 A CN101078372 A CN 101078372A
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Abstract
The invention provides a wet-indirect-cooling wet-back-cooling regenerative cycling gas turbine, comprising low-pressure compressor, wet-indirect-cooling machine, high-pressure compressor, wet-back-cooling machine, heat source, turbine, regenerator and cold source. The wet-indirect-cooling machine is set between the outlet of low-pressure compressor and the inlet of high-pressure compressor in series and water drop frog is added into the wet-indirect-cooling machine. The wet-back-cooling machine is set between the outlet of high-pressure compressor and the regenerator and water drop frog is added into it. The cycling working fluid out of the wet-back-cooling machine passes through the low-temperature side of regenerator, the heat source, the turbine, the high-temperature side of regenerator and the cold source in turn. Under conditions of the same turbine inlet temperature, the same compressor pressure ratio and the same part efficiency, the heat efficiency of invention can be improved by about 33%-41% compared with the heat efficiency of simple cycling gas turbine and it can be improved by about 55%-66% in output power index of specific air output compared with the simple cycling gas turbine.
Description
One, technical field
What the present invention relates to is a kind of gas turbine.A kind of circulatory system of gas turbine specifically.
Two, background technique
Gas turbine can be divided into simple cycle and complex loops.Simple cycle gas turbine engine has this three major types critical piece of gas compressor, firing chamber and turbine, for improving its cycle efficiency, needs to improve turbine inlet temperature, gas compressor pressure ratio and component efficiencies.Complex-cycle gas turbine is to have increased miscellaneous part on the simple cycle basis, and the thermal procession of cycle fluid has had qualitative change, can raise the efficiency under the constant condition of loop parameters such as turbine inlet temperature, performance such as power.Simple cycle and complex-cycle gas turbine respectively have pluses and minuses, the development of since gas turbine is born, always having vied each other, and performance is improved constantly.
Three, summary of the invention
The object of the present invention is to provide cold-wet rear cooling-regenerative cycle gas turbine between a kind of efficient that can further improve gas turbine wet.
The object of the present invention is achieved like this: it comprises low pressure compressor, wet inter cooler, high-pressure compressor, wet rear cooling device, thermal source, turbine, regenerator, low-temperature receiver, between the inlet of the outlet of low pressure compressor and high-pressure compressor, be in series with wet inter cooler, and in wet inter cooler, add the water droplet mist, between the outlet of high-pressure compressor and regenerator, be in series with the wet rear cooling device, and in the wet rear cooling device, adding the water droplet mist, the cycle fluid that goes out the wet rear cooling device passes through regenerator low temperature side, thermal source, turbine, regenerator high temperature side, low-temperature receiver successively.
The present invention can also comprise:
1, described thermal source is the firing chamber that directly sprays into fuel, and described low-temperature receiver is an atmosphere environment, and the cycle fluid of turbine directly enters atmosphere behind regenerator, and low pressure compressor sucks the fresh air of atmosphere.
2, described thermal source is a surface heat exchanging formula heating chamber, described low-temperature receiver is a surface heat exchanging formula precooler, the cycle fluid that goes out turbine enters precooler through behind the regenerator, the gas that goes out precooler enters low pressure compressor, and the cycle fluid condensation that goes out precooler is separated out water and enter wet inter cooler and wet rear cooling device as water droplet mist water behind water processor.
The invention belongs to complex-cycle gas turbine, although the existing complex loops unit and the technological scheme thermal efficiency than higher, technological scheme of the present invention is a complex-cycle gas turbine that efficient is higher, technology is more advanced.The present invention is with simple cycle gas turbine engine and three major types critical piece technology thereof, backheat technology, the organic integration of water spraying atomization evaporation technique, cold-wet rear cooling-regenerative cycle gas turbine between formation is wet, effect has significantly surmounted the independent use and the existing scheme that is used in combination of original technology.
Cold-wet rear cooling-regenerative cycle gas turbine between of the present invention wetting, under turbine inlet temperature, gas compressor pressure ratio and component efficiencies the same terms, comparable simple cycle gas turbine engine improves about 33%-41% aspect thermal efficiency index, improve about 55%-66% aspect the output power index of unit air mass flow; Under the equal conditions, cold/steam-recycling (S-S) is starkly lower than the present invention at the increase rate aspect the thermal efficiency index in the complex loops of prior art---steam-recycling (STIG), a cold backheat (ICR), the water spray.
The thermodynamic cycle scheme of cold-wet rear cooling-regenerative cycle gas turbine is between of the present invention wetting: from cycle fluid compression process initial point, 1) the low pressure compressor compression process: main body cycle fluid (air, the helium etc.) low pressure compressor of flowing through boosts; 2) cold between wet: add the water droplet mist between low pressure compressor outlet and high-pressure compressor import, make water-drop evaporation cooled gas working medium, the flow process terminal is the mixture of water vapor and main body cycle fluid; 3) high-pressure compressor compression process: the mixed gas working medium high-pressure compressor of flowing through boosts; 4) wet rear cooling: add the water droplet mist between high-pressure compressor outlet and regenerator, make water-drop evaporation cooled gas working medium, the flow process terminal is the mixture of water vapor and main body cycle fluid; 5) regenerator low temperature side flow process: in regenerator, increase temperature by surface heat exchanging with high temperature side gas; 6) burning/heating: the heat that absorbs high temperature heat source at burning/heating chamber by direct or indirect heat transfer type; 7) acting of expanding: the acting of in turbine, expanding of High Temperature High Pressure mixed cycle working medium, decrease temperature and pressure; 8) regenerator high temperature side flow process: turbine outlet has the cycle fluid of waste heat and by surface heat exchanging heat is passed to low temperature side gas in regenerator; 9) to the low temperature cold source heat release: cycle fluid is to the low temperature cold source heat release, come back to the compression process initial point of normal temperature first pressing, for open cycle, cycle fluid is directly arranged to atmosphere, for closed cycle, cycle fluid by precooler and refrigerant surface heat exchanging indirectly to the atmosphere environment heat release, the moisture that condensation simultaneously separates out in cyclic process to be added.
The theoretical foundation and the principle of cold-wet rear cooling between the of the present invention wetting-regenerative cycle gas turbine raising power and the thermal efficiency are: cold reduction high-pressure compressor intake temperature between wet, and the high-pressure compressor wasted work is reduced, the output power of unit is increased; Wet rear cooling continues to reduce the high-pressure compressor outlet temperature, cause the condition that significantly reclaims the turbine exhaust waste heat, and set up regenerator, the gas temperature that enters the firing chamber is raise, fuel consumption reduces, thereby output power significantly increases the significantly increase of the thermal efficiency just when accomplishing equal fuel consumption.
Similar comparison, of the present invention wet between cold-wet rear cooling-regenerative cycle gas turbine performance can access the reason that improves by a relatively large margin and be: wet rear cooling makes the backheat heighten degree; Be different from cooling water surface heat exchanging cooling, cooling water has been taken away a large amount of heat energy, and does work in the turbine that to be water vapor continue in the back of the water-drop evaporation in cold between wet, the wet rear cooling.
Four, description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the present invention;
Fig. 2 is the structural representation of second kind of embodiment of the present invention.
Five, embodiment
For a more detailed description to the present invention for example below in conjunction with accompanying drawing:
In conjunction with Fig. 1, the composition of first kind of mode of execution of cold-wet rear cooling-regenerative cycle gas turbine comprises low pressure compressor between wet, wet inter cooler, high-pressure compressor, the wet rear cooling device, thermal source, turbine, regenerator, low-temperature receiver, between the inlet of the outlet of low pressure compressor and high-pressure compressor, be in series with wet inter cooler, and in wet inter cooler, add the water droplet mist, between the outlet of high-pressure compressor and regenerator, be in series with the wet rear cooling device, and in the wet rear cooling device, adding the water droplet mist, the cycle fluid that goes out the wet rear cooling device passes through the regenerator low temperature side successively, thermal source, turbine, the regenerator high temperature side, low-temperature receiver; Described thermal source is the firing chamber that directly sprays into fuel, and described low-temperature receiver is an atmosphere environment, and the cycle fluid of turbine directly enters atmosphere behind regenerator, and low pressure compressor sucks the fresh air of atmosphere.Present embodiment belongs to a kind of open cycle.
In conjunction with Fig. 2, second kind of mode of execution of cold-wet rear cooling-regenerative cycle gas turbine comprised the chief component of first kind of embodiment between wet, its difference is that described thermal source is a surface heat exchanging formula heating chamber, described low-temperature receiver is a surface heat exchanging formula precooler, the cycle fluid that goes out turbine enters precooler through behind the regenerator, the gas that goes out precooler enters low pressure compressor, and the cycle fluid condensation that goes out precooler is separated out water and enter wet inter cooler and wet rear cooling device as water droplet mist water behind water processor.Present embodiment belongs to a kind of closed cycle.
Claims (3)
1, cold-wet rear cooling-regenerative cycle gas turbine between a kind of wetting, it comprises low pressure compressor, wet inter cooler, high-pressure compressor, the wet rear cooling device, thermal source, turbine, regenerator, low-temperature receiver, it is characterized in that: between the inlet of the outlet of low pressure compressor and high-pressure compressor, be in series with wet inter cooler, and in wet inter cooler, add the water droplet mist, between the outlet of high-pressure compressor and regenerator, be in series with the wet rear cooling device, and in the wet rear cooling device, add the water droplet mist, be provided with surface heat exchanging formula regenerator, high temperature side passes to turbine outlet gas, and low temperature side passes to wet rear cooling device exit gas.
2, cold-wet rear cooling-regenerative cycle gas turbine between according to claim 1 wetting, it is characterized in that: described thermal source is the firing chamber that directly sprays into fuel, described low-temperature receiver is an atmosphere environment, the cycle fluid of turbine directly enters atmosphere behind regenerator, low pressure compressor sucks the fresh air of atmosphere.
3, cold-wet rear cooling-regenerative cycle gas turbine between according to claim 1 wetting, it is characterized in that: described thermal source is a surface heat exchanging formula heating chamber, described low-temperature receiver is a surface heat exchanging formula precooler, the cycle fluid that goes out turbine enters precooler through behind the regenerator, the gas that goes out precooler enters low pressure compressor, and the cycle fluid condensation that goes out precooler is separated out water and enter wet inter cooler and wet rear cooling device as water droplet mist water behind water processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710072426 CN101078372A (en) | 2007-06-29 | 2007-06-29 | Wet middle cooling-wet rear cooling-backheating cycle combustion turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710072426 CN101078372A (en) | 2007-06-29 | 2007-06-29 | Wet middle cooling-wet rear cooling-backheating cycle combustion turbine |
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| CN101078372A true CN101078372A (en) | 2007-11-28 |
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| CN 200710072426 Pending CN101078372A (en) | 2007-06-29 | 2007-06-29 | Wet middle cooling-wet rear cooling-backheating cycle combustion turbine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061887A (en) * | 2013-01-11 | 2013-04-24 | 中国兵器工业集团第七0研究所 | Intercooling gas turbine |
| CN109441634A (en) * | 2018-09-25 | 2019-03-08 | 杭州螺旋新能源科技有限公司 | A kind of gas turbine and method of operation |
| CN112483257A (en) * | 2020-10-27 | 2021-03-12 | 中国船舶重工集团公司第七0三研究所 | Gas turbine intercooler of high leakproofness |
-
2007
- 2007-06-29 CN CN 200710072426 patent/CN101078372A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061887A (en) * | 2013-01-11 | 2013-04-24 | 中国兵器工业集团第七0研究所 | Intercooling gas turbine |
| CN109441634A (en) * | 2018-09-25 | 2019-03-08 | 杭州螺旋新能源科技有限公司 | A kind of gas turbine and method of operation |
| CN112483257A (en) * | 2020-10-27 | 2021-03-12 | 中国船舶重工集团公司第七0三研究所 | Gas turbine intercooler of high leakproofness |
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