CN108798903A - A kind of system and operation method using liquid oxygen misting cooling heat engine inlet air - Google Patents
A kind of system and operation method using liquid oxygen misting cooling heat engine inlet air Download PDFInfo
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- CN108798903A CN108798903A CN201810550277.XA CN201810550277A CN108798903A CN 108798903 A CN108798903 A CN 108798903A CN 201810550277 A CN201810550277 A CN 201810550277A CN 108798903 A CN108798903 A CN 108798903A
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- air
- liquid oxygen
- heat engine
- pipeline
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Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of systems and operation method using liquid oxygen misting cooling heat engine inlet air.Currently, higher in environment temperature, the generated output decline of heat engine is larger, and operational efficiency is relatively low.Liquid oxygen insulated storage tank is connected to by No.1 pipeline with adiabatic blending tank in the present invention, and immersed pump is arranged on No.1 pipeline, and sprayer is arranged in the inside of adiabatic blending tank；Adiabatic blending tank enters pipeline connection with air, and air, which enters on pipeline, is equipped with No.1 shut-off valve；Adiabatic blending tank is also connected to by No. two pipelines with compressor, and No. three shut-off valves are equipped on No. two pipelines；Air enters pipeline and enters branch by air to be connected to compressor, and air enters branch road and is equipped with No. two shut-off valves；Compressor is connected to heat engine.The liquid oxygen generated in air separation process using LNG cold energy is entered compressor after cooling down low-temperature liquid oxygen spraying to high temperature air, improves the generated output and efficiency of combustion of heat engine.
Description
Technical field
The present invention relates to a kind of systems and operation method using liquid oxygen misting cooling heat engine inlet air, for improving combustion
The summer generated output of the heat engines such as gas-turbine and internal combustion engine.
Background technology
Under summer condition, environment temperature increases so that heat engine（Including gas turbine and internal combustion engine etc.）Power reduces, because
There are various forms of Inlet Air Cooling Technologies and means in this, wherein common Inlet Air Cooling Technology be direct contact type cooling and
Indirect contact cools down two kinds.Indirect contact cooling is divided into compression refrigeration, absorption is freezed, cold-storage is cooling and the cooling of LNG cold energy；
And liquid oxygen spraying inlet gas cooling belongs to direct contact type cooling.
Traditional direct contact type cooling principle is the latent heat reduction air themperature for evaporating absorption in air using water, such as
Application No. is 200820090513.6 Chinese patents, but its cooling capacity is limited and increases the relative humidity of air.
Currently, China is in the case of hot area, especially summer environment temperature are higher, gas turbine and internal combustion engine etc.
The generated output decline of heat engine is larger, and operational efficiency is relatively low, while environment temperature higher period increases electricity needs, unit work(
Rate does not increase has larger impact to peak load regulation network.
Invention content
It is an object of the invention to overcome above-mentioned deficiency existing in the prior art, and provide a kind of utilization of reasonable design
The system and operation method of liquid oxygen misting cooling heat engine inlet air, the liquid generated in air separation process using LNG cold energy
Oxygen enters compressor after cooling down low-temperature liquid oxygen spraying to high temperature air, improves the generated output and efficiency of combustion of heat engine.
Technical solution is used by the present invention solves the above problems：It is a kind of to utilize liquid oxygen misting cooling heat engine inlet air
System, which is characterized in that including liquid oxygen insulated storage tank, immersed pump, sprayer, adiabatic blending tank, compressor and heat engine；It is described
Liquid oxygen insulated storage tank is connected to by No.1 pipeline with adiabatic blending tank, and the immersed pump is arranged on No.1 pipeline, the spraying
Device is arranged in the inside of adiabatic blending tank；The thermal insulation blending tank enters pipeline connection with air, and the air enters on pipeline
No.1 shut-off valve is installed；The thermal insulation blending tank is also connected to by No. two pipelines with compressor, is installed on No. two pipelines
There are No. three shut-off valves；The air enters pipeline and enters branch by air to be connected to compressor, and the air enters branch road
No. two shut-off valves are installed；The compressor is connected to heat engine.It is reasonable in design, after liquid oxygen is atomized using adiabatic blending tank
It is mixed with high temperature air, becomes the oxygen-enriched cold air of about 15 DEG C of design value, No. two from adiabatic blending tank top of oxygen-enriched cold air
Pipeline enters gas turbine after entering compressor compression or other heat engine mixed gas work by combustion generate electricity.
Furthermore, the air enters pipeline and enters branch with air is connected to by triple valve.
Furthermore, the heat engine is gas turbine, internal combustion engine or miniature combustion engine etc..
Furthermore, the sprayer includes multiple atomizers, and the atomizer is evenly arranged.Using cross
The arrangements such as type, circular ring type contribute to its mixing and heat exchange.
Furthermore, the atomizer is cone.Conical shaped spray is formed, reaches and is maximized with hot air
Purpose；But atomizer form is not limited only to taper.
A kind of operation method of the system as described above using liquid oxygen misting cooling heat engine inlet air, feature exist
In the operation method is as follows：In summer condition or higher environment temperature, No.1 shut-off valve and No. three shut-off valves are opened, are closed
No. two shut-off valves are closed, the low-temperature liquid oxygen in liquid oxygen insulated storage tank boosts by immersed pump, enters thermal insulation by No.1 pipeline later
In blending tank, and sprayed by sprayer in adiabatic blending tank；Meanwhile hot-air enters pipeline by air and enters adiabatic mix
The low-temperature liquid oxygen combination cooling with ejection in tank is closed, enters compressor by No. two pipelines later, air after cooling is through calming the anger
Enter heat engine after machine compression and is mixed and burned acting power generation with fuel；In winter or when spring operating mode, No.1 shut-off valve and three is closed
Number shut-off valve, opens No. two shut-off valves, and air, which from air enters branch and is directly entered compressor and enters heat engine after compression, to do work.
Furthermore, hot-air obtains the oxygen-enriched cold sky that temperature is 15 DEG C -20 DEG C after cooling in adiabatic blending tank
Gas.
Water is substituted using liquid oxygen and carries out misting cooling air, the cooling effect with strength, and air humidity will not be increased,
Oxygen content in air is improved simultaneously, improves equipment efficiency of combustion and temperature；Inlet air temperature is reduced to the best inlet temperature of design,
So that gas turbine and internal combustion engine summer reach specified optimal operating condition, generated output improves 15% to 20%.
Current LNG depth cold energy is more mature for air separation technology, and air separation products are liquid oxygen, liquid nitrogen, dry ice
Deng, product can there are many purposes, wherein by liquid oxygen for air inlet misting cooling be it is a kind of it is effective improve heat engine power and
One of mode of efficiency.
LNG cold energy is detached for air, and gasification is natural gas while generating oxygen, empty into heat engine combustion power generation
Qi leel from byproduct liquid oxygen in summer by spray pattern cooling air, improve the generated output and efficiency of combustion of heat engine.
Compared with prior art, the present invention haing the following advantages and effect：
（1）Make full use of the byproduct liquid oxygen of LNG cold energy space divisions, or other not up to other industrial liquid oxygen of medical grade
Deng, after being sprayed with air combination cooling heat engine air inlet, to providing one kind using the air separation products liquid oxygen of LNG cold energy
Land use systems contribute to LNG gasification station that will abandon cold recovery using economic benefit is formed, and foreground is very wide, the economy of generation
Benefit is also very huge.
（2）Liquid oxygen spraying mixing air can effectively reduce hot air temperature to 15 DEG C or so of design value, and heat engine is made to exist
Summer can run under efficient design operating mode, improve heat engine power；
（3）Liquid oxygen spraying can improve the oxygen content of air after being mixed with hot-air so that heat engine is burnt under oxygen-enriched operating mode, heat
The efficiency of combustion of machine improves.
Description of the drawings
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
In figure：Liquid oxygen insulated storage tank 1, immersed pump 2, sprayer 3, adiabatic blending tank 4, compressor 5, heat engine 6, No.1 cut-off
The shut-off valve 8, three of valve 7, two shut-off valve 9,10, No. two pipelines 11 of No.1 pipeline, air enters pipeline 12, air enters branch
13, triple valve 14.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
Embodiment.
Referring to Fig. 1, a kind of system using liquid oxygen misting cooling heat engine inlet air, including liquid oxygen insulated storage tank 1, latent liquid
Pump 2, sprayer 3, adiabatic blending tank 4, compressor 5 and heat engine 6；
Liquid oxygen insulated storage tank 1 is connected to by No.1 pipeline 10 with adiabatic blending tank 4, and immersed pump 2 is arranged on No.1 pipeline 10, spray
Day with fog 3 is arranged in the inside of adiabatic blending tank 4；Adiabatic blending tank 4 enters pipeline 12 with air and is connected to, and air enters on pipeline 12
No.1 shut-off valve 7 is installed；Adiabatic blending tank 4 is also connected to by No. two pipelines 11 with compressor 5, is equipped on No. two pipelines 11
No. three shut-off valves 9；Air enters pipeline 12 and enters branch 13 by air to be connected to compressor 5, and air, which enters on branch 13, pacifies
Equipped with No. two shut-off valves 8；Compressor 5 is connected to heat engine 6.
In the present embodiment, air enters pipeline 12 and enters branch 13 with air to be connected to by triple valve 14.Heat engine 6 is combustion gas
Turbine, internal combustion engine or miniature combustion engine.Sprayer 3 includes multiple atomizers, and atomizer is evenly arranged.Atomizer is circular cone
Shape.
A kind of operation method of the system as described above using liquid oxygen misting cooling heat engine inlet air, operation method
It is as follows：In summer condition or higher environment temperature, No.1 shut-off valve 7 and No. three shut-off valves 9 are opened, close No. two shut-off valves 8,
Low-temperature liquid oxygen in liquid oxygen insulated storage tank 1 boosts by immersed pump, is entered in adiabatic blending tank 4 by No.1 pipeline 10 later,
And it is sprayed by sprayer 3 in adiabatic blending tank 4；Meanwhile hot-air enters pipeline 12 by air and enters adiabatic blending tank 4
In low-temperature liquid oxygen combination cooling with ejection, enter compressors 5 by No. two pipelines 11 later, air after cooling is through compressor
Enter heat engine 6 after 5 compressions and is mixed and burned acting power generation with fuel；In winter or when spring operating mode, No.1 shut-off valve 7 and three is closed
Number shut-off valve 9, opens No. two shut-off valves 8, and air from air enters branch 13 and is directly entered compressor 5 enters heat engine after compression
6 actings.
In above-mentioned operation method, it is 15 DEG C -20 DEG C oxygen-enriched that hot-air obtains temperature after cooling in adiabatic blending tank 4
Cold air.
The present invention realizes the cooling of 6 inlet air temperature of summer condition heat engine, improves the power of 6 summer of heat engine；Simultaneously
Solves the problems, such as the consumption of byproduct liquid oxygen after LNG space divisions；By improving oxygen content in air, the efficiency of combustion of heat engine 6 is improved.
Although the present invention is disclosed as above with embodiment, it is not limited to protection scope of the present invention, any to be familiar with
The technical staff of this technology changes and retouches made by without departing from the spirit and scope of the invention, should all belong to this hair
Bright protection domain.
Claims (7)
1. a kind of system using liquid oxygen misting cooling heat engine inlet air, which is characterized in that including liquid oxygen insulated storage tank, latent liquid
Pump, sprayer, adiabatic blending tank, compressor and heat engine；The liquid oxygen insulated storage tank is connected by No.1 pipeline and adiabatic blending tank
Logical, the immersed pump is arranged on No.1 pipeline, and the sprayer is arranged in the inside of adiabatic blending tank；The thermal insulation blending tank
Enter pipeline connection with air, the air, which enters on pipeline, is equipped with No.1 shut-off valve；The thermal insulation blending tank also passes through two
Number pipeline is connected to compressor, and No. three shut-off valves are equipped on No. two pipelines；The air enter pipeline by air into
Enter branch to be connected to compressor, the air enters branch road and is equipped with No. two shut-off valves；The compressor is connected to heat engine.
2. the system according to claim 1 using liquid oxygen misting cooling heat engine inlet air, which is characterized in that the sky
Gas enters pipeline and enters branch with air to be connected to by triple valve.
3. the system according to claim 1 using liquid oxygen misting cooling heat engine inlet air, which is characterized in that the heat
Machine is gas turbine, internal combustion engine or miniature combustion engine.
4. the system according to claim 1 using liquid oxygen misting cooling heat engine inlet air, which is characterized in that the spray
Day with fog includes multiple atomizers, and the atomizer is evenly arranged.
5. the system according to claim 4 using liquid oxygen misting cooling heat engine inlet air, which is characterized in that the mist
It is cone to change nozzle.
6. a kind of be using liquid oxygen misting cooling heat engine inlet air as described in any one of claim 1-5 claims
The operation method of system, which is characterized in that the operation method is as follows：In summer condition or higher environment temperature, No.1 is opened
Shut-off valve and No. three shut-off valves close No. two shut-off valves, and the low-temperature liquid oxygen in liquid oxygen insulated storage tank boosts by immersed pump, later
Entered in adiabatic blending tank by No.1 pipeline, and is sprayed by sprayer in adiabatic blending tank；Meanwhile hot-air passes through sky
Gas enters pipeline and enters low-temperature liquid oxygen combination cooling in adiabatic blending tank with ejection, is entered by No. two pipelines calm the anger later
Machine, air after cooling enter heat engine after compressor compresses and are mixed and burned acting power generation with fuel；In winter or spring operating mode
When, No.1 shut-off valve and No. three shut-off valves are closed, No. two shut-off valves are opened, air enters branch from air and is directly entered compressor
Enter heat engine after compression to do work.
7. the operation method of the system according to claim 6 using liquid oxygen misting cooling heat engine inlet air, feature
It is, hot-air obtains the oxygen-enriched cold air that temperature is 15 DEG C -20 DEG C after cooling in adiabatic blending tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550277.XA CN108798903A (en) | 2018-05-31 | 2018-05-31 | A kind of system and operation method using liquid oxygen misting cooling heat engine inlet air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550277.XA CN108798903A (en) | 2018-05-31 | 2018-05-31 | A kind of system and operation method using liquid oxygen misting cooling heat engine inlet air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108798903A true CN108798903A (en) | 2018-11-13 |
Family
ID=64089860
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550277.XA Pending CN108798903A (en) | 2018-05-31 | 2018-05-31 | A kind of system and operation method using liquid oxygen misting cooling heat engine inlet air |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113479A (en) * | 1997-06-25 | 1999-01-19 | Kawasaki Steel Corp | Gas turbine power generation method |
| CN105401989A (en) * | 2015-12-10 | 2016-03-16 | 华电电力科学研究院 | System and method for comprehensively utilizing liquefied natural gas (LNG) energy |
| CN105840316A (en) * | 2016-06-12 | 2016-08-10 | 华电郑州机械设计研究院有限公司 | System for intake cooling and dehumidification of gas turbine by using LNG cold energy |
| 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 |
| CN208281062U (en) * | 2018-05-31 | 2018-12-25 | 华电电力科学研究院有限公司 | A kind of system using liquid oxygen misting cooling heat engine inlet air |
-
2018
- 2018-05-31 CN CN201810550277.XA patent/CN108798903A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113479A (en) * | 1997-06-25 | 1999-01-19 | Kawasaki Steel Corp | Gas turbine power generation method |
| CN105401989A (en) * | 2015-12-10 | 2016-03-16 | 华电电力科学研究院 | System and method for comprehensively utilizing liquefied natural gas (LNG) energy |
| 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 |
| CN105840316A (en) * | 2016-06-12 | 2016-08-10 | 华电郑州机械设计研究院有限公司 | System for intake cooling and dehumidification of gas turbine by using LNG cold energy |
| CN208281062U (en) * | 2018-05-31 | 2018-12-25 | 华电电力科学研究院有限公司 | A kind of system using liquid oxygen misting cooling heat engine inlet air |
Non-Patent Citations (1)
| Title |
|---|
| 清华大学热能工程系动力机械与工程研究所，深圳南山热电股份有限公司: "《燃气轮机与燃气-蒸汽联合循环装置 上》" * |
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