CN110307091A - Liquid nitrogen direct injection charge air-cooling system for gas turbines - Google Patents
Liquid nitrogen direct injection charge air-cooling system for gas turbines Download PDFInfo
- Publication number
- CN110307091A CN110307091A CN201910727931.4A CN201910727931A CN110307091A CN 110307091 A CN110307091 A CN 110307091A CN 201910727931 A CN201910727931 A CN 201910727931A CN 110307091 A CN110307091 A CN 110307091A
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- CN
- China
- Prior art keywords
- liquid nitrogen
- nozzle
- flow
- air
- cooling system
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
- F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
- F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
Abstract
A kind of liquid nitrogen direct injection charge air-cooling system for gas turbines, it include: the liquid nitrogen storage device being sequentially connected, the liquid nitrogen of liquid nitrogen pressure for adjusting nozzle entrance atomization adjuster and liquid nitrogen nozzle group, wherein: pipeline being adjusted by flow between liquid nitrogen storage device and liquid nitrogen atomization adjuster and is connected according to unit intake air temperature demand adjustment liquid nitrogen flow, liquid nitrogen nozzle is distributed in compressor air inlet machine mouth, and the liquid nitrogen after liquid nitrogen atomization adjuster is sufficiently atomized sprays into compressor air inlet machine mouth to mix with air by nozzle sets to be cooled down.The present invention is atomized adjuster by liquid nitrogen and generates atomizing effect, improves the uniformity of contact surface area and atomization, has the advantages of simple structure and easy realization, cost is relatively low, can reduce energy consumption.
Description
Technical field
The present invention relates to a kind of technology in gas turbine field, specifically a kind of liquid nitrogen direct-injection for gas turbines
Formula charge air-cooling system.
Background technique
Gas turbine is used widely as peak load stations and driving with power device, while advantage is fairly obvious
Technological deficiency includes: that the intake air temperature of gas turbine significantly affects itself power output and efficiency.High temperature area or
In season, since environment temperature increases, gas turbine output power and efficiency are on a declining curve, transport to the normal production of user side
Row constitutes very big influence.If gas turbine can install charge air-cooling system, intake air temperature is reduced, then combustion gas wheel can be improved
The power output of machine simultaneously makes it keep stable state.Evaporation endothermic reaches in air using water for conventional Inlet Air Cooling Technology
To the purpose of air themperature is reduced, until reaching saturated moist air state, but lower, the intake air temperature after cooling of the cold degree of the technology
It theoretically can only be and larger by ambient humidity and Water Temperature close to the wet-bulb temperature of environment.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, proposes a kind of liquid nitrogen direct injection air inlet for gas turbines
Cooling system is atomized adjuster by liquid nitrogen and generates atomizing effect, improves the uniformity of contact surface area and atomization, structure letter
It is single, it is easy to accomplish, cost is relatively low, can reduce energy consumption.
The present invention is achieved by the following technical solutions:
The present invention includes: the liquid nitrogen storage device being sequentially connected, the liquid nitrogen mist of liquid nitrogen pressure for adjusting nozzle entrance
Change adjuster and liquid nitrogen nozzle group, in which: pipeline phase is adjusted by flow between liquid nitrogen storage device and liquid nitrogen atomization adjuster
Liquid nitrogen flow is even adjusted according to unit intake air temperature demand, liquid nitrogen nozzle is distributed in compressor air inlet machine mouth, is atomized and adjusts through liquid nitrogen
Liquid nitrogen after device is sufficiently atomized is sprayed into compressor air inlet machine mouth to mix with air and is cooled down by nozzle sets.
The liquid nitrogen nozzle is specifically set to the peripheral wall surfaces after compressor air inlet machine mouth, is evenly distributed between nozzle, with
Guarantee that gas turbine inlet air cooling temperature is evenly distributed.
The flow control valve for adjusting liquid nitrogen flow, corresponding compressor air inlet machine mouth are equipped with after the liquid nitrogen storage device
It is equipped with intake air temperature controller, control of the flow control valve by intake air temperature controller.
Technical effect
Liquid nitrogen is uniformly being sent in liquid nitrogen nozzle before ejection by the present invention, is adjusted to liquid nitrogen nozzle inlet pressure
Section control, guarantees good atomizing effect, and effectively to avoid liquid nitrogen, also drop or fluid column are sprayed into, and causes inhomogeneous cooling even.
The present invention is compared with indirect type cooling technology, the consumption of cold source needed for eliminating cooling medium and heat exchanger, because
It is simpler and safe and environmentally friendly that this cooling technology more saves cold source structure.
Compared with prior art, liquid nitrogen atomization, inlet gas cooling and promotion gas turbine performance are used in combination the present invention, solve
The problems such as having determined indirect contact cooling technology structure is complicated, and applicability is small, and economy is poor, while compensating for direct contact type
The inadequate defect of the cold degree of cooling technology air inlet, effectively increases the power output and efficiency of gas turbine.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is liquid nitrogen nozzle group schematic diagram；
In figure: liquid nitrogen storage device 1, flow adjustment pipeline 2, liquid nitrogen atomization adjuster 3, liquid nitrogen nozzle group 4, compressor into
Air flue 5.
Specific embodiment
As shown in Figure 1, being related to a kind of liquid nitrogen direct injection charge air-cooling system for gas turbines for the present embodiment, wrap
Include: liquid nitrogen storage device 1, the liquid nitrogen being connected to liquid nitrogen storage device 1 are atomized adjuster 3 and connect with liquid nitrogen atomization adjuster 3
Logical liquid nitrogen nozzle group 4, in which: liquid nitrogen enters liquid nitrogen from liquid nitrogen storage device 1 through inflow-rate of water turbine adjustment pipeline 2 with suitable flow
It is atomized adjuster 3, by adjusting inlet pressure of the liquid nitrogen at atomizer, guarantees the preferable atomizing effect of liquid nitrogen nozzle, increases
Add cooling surface product, liquid nitrogen is mixed with air into compressor air inlet machine mouth 5 by the injection of liquid nitrogen nozzle group 4 and cooled down.
Liquid nitrogen is uniformly sent in liquid nitrogen nozzle group after atomizing pressure is adjusted, and each nozzle I~V is to be radially disposed at
The periphery and face air inlet center of compressor air inlet machine mouth.In cooling procedure, it is realized by adjusting flow control valve aperture
Liquid nitrogen flow is precisely controlled, to guarantee to reach optimal cooling effect.Relationship between the amount of injection and cooling meetsWherein: m1For liquid nitrogen spray amount, m2For combustion engine compressor flow.
Present invention introduces the modes of liquid nitrogen direct-injection to cool down gas turbine inlet air temperature, according to calculate it is known that
The intake air temperature of gas turbine reduces by 10 DEG C, and unit output increase about 6.6% can increase substantially combustion gas within the peak regulation period
The economic benefit of turbine unit advantageously reduces the DS NOx Est of gas turbine, has so that combustion chambers burn characteristic is improved
Conducive to protection environment.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (4)
1. a kind of liquid nitrogen direct injection charge air-cooling system for gas turbines characterized by comprising the liquid nitrogen being sequentially connected
Storage device, the liquid nitrogen atomization adjuster of liquid nitrogen pressure for adjusting nozzle entrance and liquid nitrogen nozzle group, in which: liquid nitrogen storage
Pipeline is adjusted by flow between device and liquid nitrogen atomization adjuster to be connected according to unit intake air temperature demand adjustment liquid nitrogen flow,
Liquid nitrogen nozzle is distributed in compressor air inlet machine mouth, and the liquid nitrogen after liquid nitrogen atomization adjuster is sufficiently atomized is sprayed by nozzle sets to pressure
It mixes with air and is cooled down in mechanism of qi air inlet.
2. liquid nitrogen direct injection charge air-cooling system according to claim 1, characterized in that the liquid nitrogen nozzle is specifically set
A peripheral wall surfaces after being placed in compressor air inlet machine mouth are evenly distributed between nozzle, to guarantee that gas turbine inlet air cooling temperature is distributed
Uniformly.
3. liquid nitrogen direct injection charge air-cooling system according to claim 1, characterized in that after the liquid nitrogen storage device
Equipped with the flow control valve for adjusting liquid nitrogen flow, corresponding compressor air inlet machine mouth is equipped with intake air temperature controller, flow tune
Save control of the valve by intake air temperature controller.
4. liquid nitrogen direct injection charge air-cooling system according to claim 1, characterized in that the adjustment liquid nitrogen flow is
Refer to: the relationship between the amount of injection and cooling meetsWherein: m1For liquid nitrogen spray amount, m2For combustion engine compressor stream
Amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727931.4A CN110307091A (en) | 2019-08-08 | 2019-08-08 | Liquid nitrogen direct injection charge air-cooling system for gas turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727931.4A CN110307091A (en) | 2019-08-08 | 2019-08-08 | Liquid nitrogen direct injection charge air-cooling system for gas turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110307091A true CN110307091A (en) | 2019-10-08 |
Family
ID=68082094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910727931.4A Pending CN110307091A (en) | 2019-08-08 | 2019-08-08 | Liquid nitrogen direct injection charge air-cooling system for gas turbines |
Country Status (1)
| Country | Link |
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| CN (1) | CN110307091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769691A (en) * | 2020-07-09 | 2020-10-13 | 清华大学 | High-power-density motor cooled by released low-temperature medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098766A (en) * | 1993-05-28 | 1995-02-15 | 普拉塞尔技术有限公司 | A kind of gas turbine-air-separating plant combination |
| EP0855518A2 (en) * | 1997-01-24 | 1998-07-29 | The BOC Group plc | Process and apparatus for controlling the inlet temperature of an air compressor |
| GB2479001A (en) * | 2010-03-26 | 2011-09-28 | Linde Ag | Compressor with atomised cryogenic liquefied gas injection |
| CN102454482A (en) * | 2010-10-22 | 2012-05-16 | 通用电气公司 | Integrated gasification combined cycle system with a nitrogen cooled gas turbine |
| CN106014637A (en) * | 2016-06-07 | 2016-10-12 | 中国人民解放军国防科学技术大学 | Air precooling compression aircraft engine and hypersonic velocity aircraft |
-
2019
- 2019-08-08 CN CN201910727931.4A patent/CN110307091A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098766A (en) * | 1993-05-28 | 1995-02-15 | 普拉塞尔技术有限公司 | A kind of gas turbine-air-separating plant combination |
| EP0855518A2 (en) * | 1997-01-24 | 1998-07-29 | The BOC Group plc | Process and apparatus for controlling the inlet temperature of an air compressor |
| GB2479001A (en) * | 2010-03-26 | 2011-09-28 | Linde Ag | Compressor with atomised cryogenic liquefied gas injection |
| CN102454482A (en) * | 2010-10-22 | 2012-05-16 | 通用电气公司 | Integrated gasification combined cycle system with a nitrogen cooled gas turbine |
| CN106014637A (en) * | 2016-06-07 | 2016-10-12 | 中国人民解放军国防科学技术大学 | Air precooling compression aircraft engine and hypersonic velocity aircraft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111769691A (en) * | 2020-07-09 | 2020-10-13 | 清华大学 | High-power-density motor cooled by released low-temperature medium |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191008 |
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| RJ01 | Rejection of invention patent application after publication |