CN109356717A - LNG gas turbine and its efficiency improving device and method - Google Patents
LNG gas turbine and its efficiency improving device and method Download PDFInfo
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- CN109356717A CN109356717A CN201811208463.1A CN201811208463A CN109356717A CN 109356717 A CN109356717 A CN 109356717A CN 201811208463 A CN201811208463 A CN 201811208463A CN 109356717 A CN109356717 A CN 109356717A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 79
- 238000002485 combustion reaction Methods 0.000 claims abstract description 39
- 238000002309 gasification Methods 0.000 claims abstract description 37
- 230000008520 organization Effects 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 239000002918 waste heat Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000000112 cooling gas Substances 0.000 abstract description 2
- 239000003949 liquefied natural gas Substances 0.000 description 67
- 239000000446 fuel Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- 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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- 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
- F02C7/22—Fuel supply systems
-
- 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
- F02C7/22—Fuel supply systems
- F02C7/224—Heating fuel before feeding to the burner
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of LNG gas turbine and its efficiency improving device and methods.LNG gas turbine proficiency lifting device includes: gasifier and mixed organization；Gasifier receives LNG and the air from environment, is fed through mixed organization after forming Cryogenic air, and the NG after gasification is fed through to the combustion chamber of LNG gas turbine for absorbing the gasification cold energy of LNG using the air received as the gasification heat source of LNG；Mixed organization receives the air from environment and the Cryogenic air from gasifier, and two-way air is fed through to the compressor of LNG gas turbine after mixing.The present invention is used to the air of cooling gas turbine compressor inlet by the cold energy for releasing LNG in gasification, so that atmospheric density becomes larger, increase the temperature ratio of the mass flow for entering compressor air and compressor inlet and outlet, and then increase the power output of gas turbine, promotes gas turbine proficiency.
Description
Technical field
The present invention relates to Gas Turbine Generating Units technical field, in particular to a kind of LNG gas turbine and its efficiency mention
Rise device and method.
Background technique
With the continuous development of society, country vigorously advocates efficient, the clean utilization of the energy, with natural gas (Natural
Gas, NG) increase year by year for combustion gas-steam combined cycle power generating unit installed capacity of fuel, so that power industry is to natural
The dependence of gas is also continuously increased.In the case where country advocates the background of " coal changes gas " energetically, there are supply and demand in the demand and supply of natural gas
Unbalanced situation, in-service gas turbine unit may face the insufficient situation of pipeline gas supply, use with gas peak period
Liquefied natural gas (Liquefied Natural Gas, LNG) becomes possibility as peak fuel.
LNG needs the adaptive characters of the techniques to meet combustion chamber to fuel such as gasification before entering gas turbine, in nothing
Cooling needs or without under the conditions of cooling supply, LNG the released cold energy that gasifies before entering gas turbine cannot be efficiently used, be caused
Energy waste simultaneously increases maintenance cost.
Summary of the invention
The present invention provides a kind of LNG gas turbine and its efficiency improving device and methods, so that LNG is generated in gasification
Cold energy can be effectively used, while reducing maintenance cost, increase the power output of gas turbine, realize gas turbine proficiency
Promotion.
An aspect of of the present present invention provides a kind of LNG gas turbine proficiency lifting device, comprising: gasifier and mixing machine
Structure；Gasifier receives LNG and the air from environment, using the air received as the gasification heat source of LNG, for absorbing LNG
Gasification cold energy, be fed through mixed organization after forming Cryogenic air, and the NG after gasification be fed through to the burning of LNG gas turbine
Room；Mixed organization receives the air from environment and the Cryogenic air from gasifier, and two-way air is sent after mixing
Enter to the compressor of LNG gas turbine.
Another aspect provides a kind of LNG gas turbines, comprising: including compressor, combustion chamber, turbine and on
State LNG gas turbine proficiency lifting device；Compressor receives the cold and hot of LNG gas turbine proficiency lifting device output and is uniformly mixed
Air and cold and hot uniformly mixed air is fed through combustion chamber；Combustion chamber receives the cold and hot uniformly mixed of compressor feeding
Air, and the NG of LNG gas turbine proficiency lifting device output is received, cold and hot uniformly mixed air and NG are complete in combustion chamber
High temperature and high pressure flue gas is formed at combustion reaction, high temperature and high pressure flue gas is fed through expansion work in turbine and becomes low temperature cigarette by combustion chamber
It is exported after gas.
Another aspect provides a kind of LNG gas turbine proficiency method for improving, comprising: receives from environment
Air；The air received is divided into two-way, air is fed through the gasification heat source in gasifier as LNG all the way, for absorbing
The gasification cold energy of LNG forms Cryogenic air；The Cryogenic air of formation and another way air are fed through in mixed organization carry out it is cold
Hot mixing obtains cold and hot uniformly mixed air and is fed through in the compressor of LNG gas turbine.
The beneficial effects of the present invention are: by the way that the part normal temperature air for entering gas turbine blower is led to LNG gasification
Gasification cold energy is absorbed, forms Cryogenic air, be uniformly mixed with the air of component environment temperature by heat source of the device as LNG gasification,
Compressor inlet temperature is reduced, achievees the purpose that increase Gas Turbine Output, promote gas turbine proficiency.
Detailed description of the invention
Fig. 1 is the structural block diagram of the LNG gas turbine proficiency lifting device shown in the embodiment of the present invention；
Fig. 2 is the LNG gas turbine schematic diagram shown in the embodiment of the present invention；
Fig. 3 is the LNG gas turbine structure block diagram shown in the embodiment of the present invention；
Fig. 4 is the LNG gas turbine proficiency method for improving flow chart shown in the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Hereinafter, will be described with reference to the accompanying drawings the embodiment of the present invention.However, it should be understood that these descriptions are only exemplary
, and be not intended to limit the scope of the invention.In addition, in the following description, descriptions of well-known structures and technologies are omitted, with
Avoid unnecessarily obscuring idea of the invention.
Term as used herein is not intended to limit the present invention just for the sake of description specific embodiment.Used here as
Word " one ", " one (kind) " and "the" etc. also should include " multiple ", " a variety of " the meaning, unless in addition context clearly refers to
Out.In addition, the terms "include", "comprise" as used herein etc. show the presence of the feature, step, operation and/or component,
But it is not excluded that in the presence of or add other one or more features, step, operation or component.
There are all terms (including technical and scientific term) as used herein those skilled in the art to be generally understood
Meaning, unless otherwise defined.It should be noted that term used herein should be interpreted that with consistent with the context of this specification
Meaning, without that should be explained with idealization or excessively mechanical mode.
In order to solve gas turbine using LNG fuel be conventional fuel or peak fuel when, into gas turbine before gas
The cold energy that the techniques such as change are released nowhere effectively dissolves the problems such as forming cold energy waste and maintenance cost increase, for this feelings
Condition, overall technology design of the invention is: Gas Turbine Generating Units are when being conventional fuel or peak fuel using LNG, LNG
A large amount of cold energy can be released in gasification, the cold energy released is used to the air of cooling gas turbine compressor inlet, so that
Atmospheric density becomes larger, and increases the temperature ratio of the mass flow for entering compressor air and compressor inlet and outlet, and then combustion gas wheel
The power output of machine increases, and promotes gas turbine proficiency.
One aspect of the present invention provides a kind of LNG gas turbine proficiency lifting device.
The LNG gas turbine proficiency lifting device of the present embodiment is suitable for in-service Gas Turbine Generating Units, especially suitable
When using LNG as conventional fuel or peak fuel, energy source station nearby without cooling needs or not for cool condition the case where
Under, LNG, which enters before gas turbine the discharged cold energy that gasifies, to be used effectively, cause energy waste and increase maintenance at
This case where.
Fig. 1 is the structural block diagram of the LNG gas turbine proficiency lifting device shown in the embodiment of the present invention,
Fig. 2 is the LNG gas turbine schematic diagram shown in the embodiment of the present invention, and as shown in Figs. 1-2, the LNG of the present embodiment fires
Gas-turbine efficiency improving device includes: gasifier and mixed organization；
Gasifier receives LNG and the air from environment, using the air received as the gasification heat source of LNG, for inhaling
The gasification cold energy of LNG is received, is fed through mixed organization after forming Cryogenic air, and the NG after gasification is fed through LNG gas turbine
Combustion chamber；Mixed organization receives the air from environment and the Cryogenic air from gasifier, and two-way air is mixed
The compressor of LNG gas turbine is fed through after even.
The present embodiment is by leading to LNG gasification device as LNG gas for the part normal temperature air for entering gas turbine blower
Gasification cold energy is absorbed, forms Cryogenic air, be uniformly mixed with the air of component environment temperature, reduces compressor by the heat source of change
Inlet temperature achievees the purpose that increase Gas Turbine Output, promotes gas turbine proficiency.
As shown in Fig. 2, the gasifier 9 in the present embodiment goes out including the first import, the second import, first outlet and second
Mouthful, mixed organization includes mixer 3 and cyclone 4, and mixer 3 includes the first import, the second inlet and outlet, and cyclone 4 wraps
Include inlet and outlet；
The first import and the second import of gasifier 9 receive air from environment and respectively from LNG air accumulators 8
LNG, the first outlet and second outlet of gasifier 9 export the Cryogenic air and gasification for absorbing and being formed after LNG gasification cold energy respectively
NG afterwards, the second import of the first outlet connection mixer 3 of gasifier 9；First import of mixer 3 is used for received from environment
Air, the second import of mixer receives the Cryogenic air of the first outlet output of gasifier 9, the outlet connection of mixer 3
The import of cyclone 4；The import of cyclone 4 receives the mixing air of the outlet of mixer 3 output, and via the outlet of cyclone 4
Cold and hot uniformly mixed air is fed through in the compressor 5 of LNG gas turbine.
The present embodiment gasifier can be with gasifier in the prior art, and internal specific structure the present embodiment is not done specifically
Description.
It is to be understood that the received surrounding air of the present embodiment gasifier is one of heat source of LNG gasification, it is not to make
For unique heat source of LNG gasification, the gasification result of LNG will not be had an impact.
The Cryogenic air and surrounding air being fed through in mixed organization pass through mixer and cyclone effect, temperature,
Speed and pressure field etc. are sufficiently mixed, and are formed cold and hot uniformly mixed air and are fed through in compressor, so that entering pressure
The air themperature of mechanism of qi reduces, and atmospheric density becomes larger, and increases into mass flow and the compressor inlet and outlet of compressor air
Temperature ratio, and then increase the power output of gas turbine, promote the efficiency of gas turbine.
Since the air entered in compressor is to be uniformly mixed to be formed by normal temperature air all the way and all the way lower temperature air
, the adjusting to compressor air temperature is sent into can be realized according to the change of two-way air capacity.In the present embodiment, as shown in Fig. 2,
First flow is set on the admission line of 9 first import of gasifier and adjusts meter 1, is set on the admission line of 3 second import of mixer
It sets second flow and adjusts meter 2, the air from environment is divided into two-way, in actual moving process, can run work according to unit
Condition adjusts meter 1 and second flow adjusting meter 2 by first flow to control the air of environment temperature and the stream of Cryogenic air respectively
Amount guarantees that the temperature for entering compressor air is in allowed band, realizes that compressor air flow and temperature are adjustable, has behaviour
Make convenient feature.
With reference to Fig. 2, the LNG gas turbine proficiency lifting device of the present embodiment further includes heater 10 and pressure reducing valve 11；Add
The NG temperature that hot device 10 exports gasifier increases, and the raised NG of temperature is adjusted by pressure reducing valve 11 to preset pressure, will
The combustion chamber of LNG gas turbine is fed through through excess pressure NG adjusted, the cold and hot uniform air and NG after cooling are burning
Combustion reaction is completed in room 6 and forms high temperature and high pressure flue gas, then the flue gas for sending into turbine 7 expansion work to become lower temperature,
The flue gas of lower temperature is finally discharged into waste heat boiler and carries out heat exchange.Wherein, preferably, heater 10 is water to the present embodiment
Bathe heater.
Another aspect of the present invention provides a kind of LNG gas turbine.
Fig. 3 is the LNG gas turbine structure block diagram shown in the embodiment of the present invention, as shown in figure 3, the LNG of the present embodiment fires
Gas-turbine includes: compressor, combustion chamber, turbine and the LNG gas turbine proficiency lifting device being described above.
Compressor receives the cold and hot uniformly mixed air of LNG gas turbine proficiency lifting device output and by cold and hot mixing
Uniform air is fed through combustion chamber；Combustion chamber receives the cold and hot uniformly mixed air that compressor is sent into, and receives LNG combustion
The NG of gas-turbine efficiency improving device output, cold and hot uniformly mixed air and NG complete combustion reaction in combustion chamber and form high temperature
High temperature and high pressure flue gas is fed through after expansion work in turbine becomes low-temperature flue gas and exports by high pressure flue gas, combustion chamber.
In practical application, low-temperature flue gas is discharged into waste heat boiler by the combustion chamber of the present embodiment, so that waste heat boiler carries out
Heat exchange, promotes capacity usage ratio.
During whole operation, since air completes the absorption of LNG cold energy before entering compressor, during being somebody's turn to do
Uniformly mixed air after the cooling of formation is completed to compress in compressor, compressor caused by the reduction of air themperature,
The operating condition variation of the gas turbines key equipment such as combustion chamber, turbine allows in variation range in the design of each component, and calms the anger
The core equipments such as machine, combustion chamber, turbine do not do any improvement, i.e., change in existing gas-steam combined cycle set system
On the basis of change small, system structure stability is not affected.
Another aspect of the present invention provides a kind of LNG gas turbine proficiency method for improving.
Fig. 4 is the LNG gas turbine proficiency method for improving flow chart shown in the embodiment of the present invention, as shown in figure 4, this implementation
Example method include:
S410 receives the air from environment.
The present embodiment does not limit the mode that surrounding air is input to gasifier and mixed organization, such as air blast can be set
Surrounding air is delivered in air pipeline by machine, by the way that two-way is arranged in air pipeline, is realized to the branch of surrounding air
Reason.
The air received is divided into two-way by S420, and air is fed through the gasification heat source in gasifier as LNG all the way,
For absorbing the gasification cold energy of LNG, Cryogenic air is formed.
The Cryogenic air of formation and another way air are fed through in mixed organization and carry out cold and hot mixing, obtain cold by S430
The uniform air of hot mixing is simultaneously fed through in the compressor of LNG gas turbine.
In a scheme of the present embodiment, first flow adjusting is arranged in the present embodiment on the admission line of gasifier
Meter, and, second flow is set on the admission line of mixed organization and adjusts meter, adjusts meter and second flow using first flow
It adjusts meter control and enters the flow of surrounding air and the flow of Cryogenic air in mixed structure, guarantee the temperature for entering compressor air
Degree realizes the adjustable of compressor air flow and temperature in the allowed band.
In another scheme of the present embodiment, when receiving the air from environment, also receive from LNG air accumulator
LNG is simultaneously fed through in gasifier and carries out gasification process, the NG after being gasified；It is promoted using heater after gasifying in gasifier
The temperature of NG, and adjusting the pressure of NG after temperature is promoted to preset pressure, the NG that obtains that treated are simultaneously fed through combustion chamber.
Cold and hot uniformly mixed air is fed through and calms the anger after obtaining cold and hot uniformly mixed air by the present embodiment
It is fed through combustion chamber after entering compression processing in machine, cold and hot uniformly mixed air and NG is made to complete combustion reaction simultaneously in combustion chamber
High temperature and high pressure flue gas is formed, high temperature and high pressure flue gas is fed through after expansion work in turbine becomes low-temperature flue gas and is drained into waste heat pot
Heat exchange is carried out in furnace.
For the ease of clearly describing the technical solution of the embodiment of the present invention, in the embodiment of invention, use " first ",
Printed words such as " second " distinguish function and the essentially identical identical entry of effect or similar item, and those skilled in the art can manage
The printed words such as solution " first ", " second " are not defined quantity and execution order.
The above description is merely a specific embodiment, under above-mentioned introduction of the invention, those skilled in the art
Other improvement or deformation can be carried out on the basis of the above embodiments.It will be understood by those skilled in the art that above-mentioned tool
Body description only preferably explains that the purpose of the present invention, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of LNG gas turbine proficiency lifting device characterized by comprising gasifier and mixed organization；
The gasifier receives LNG and the air from environment, using the air received as the gasification heat source of LNG, for inhaling
The gasification cold energy of LNG is received, is fed through mixed organization after forming Cryogenic air, and the NG after gasification is fed through LNG gas turbine
Combustion chamber；
The mixed organization receives the air from environment and the Cryogenic air from gasifier, and two-way air is uniformly mixed
It is fed through the compressor of LNG gas turbine afterwards.
2. the apparatus according to claim 1, which is characterized in that the gasifier includes the first import, the second import, first
Outlet and second outlet, the mixed organization include mixer and cyclone, and the mixer includes the first import, the second import
And outlet, the cyclone include inlet and outlet；
The first import and the second import of the gasifier receive the air from environment and the LNG from LNG air accumulator respectively,
After the first outlet and second outlet of the gasifier export the Cryogenic air and gasification for absorbing and being formed after LNG gasification cold energy respectively
NG, the first outlet of the gasifier connects the second import of the mixer；
First import of the mixer is used for the air received from environment, and the second import of the mixer receives the gasification
The Cryogenic air of the first outlet output of device, the outlet of the mixer connect the import of the cyclone；
The import of the cyclone receives the mixing air of the mixer outlet output, and will be cold and hot via the outlet of cyclone
Uniformly mixed air is fed through in the compressor of LNG gas turbine.
3. the apparatus of claim 2, which is characterized in that is arranged on the admission line of first import of gasifier
One flow-controlling meter, setting second flow adjusts meter on the admission line of second import of mixer.
4. the apparatus according to claim 1, which is characterized in that further include heater and pressure reducing valve；
The NG temperature that the heater exports the gasifier increases, and the raised NG of temperature is adjusted by pressure reducing valve to pre-
If pressure, the combustion chamber of LNG gas turbine will be fed through through excess pressure NG adjusted.
5. a kind of LNG gas turbine, which is characterized in that including any one of compressor, combustion chamber, turbine and claim 1-3 institute
The LNG gas turbine proficiency lifting device stated；
The compressor receives the cold and hot uniformly mixed air of the LNG gas turbine proficiency lifting device output and will be described
Cold and hot uniformly mixed air is fed through the combustion chamber；
The combustion chamber receives the cold and hot uniformly mixed air that compressor is sent into, and receives the LNG gas turbine proficiency
The NG of lifting device output, cold and hot uniformly mixed air and NG complete combustion reaction in the combustion chamber and form high temperature and pressure cigarette
High temperature and high pressure flue gas is fed through after expansion work in turbine becomes low-temperature flue gas and exports by gas, the combustion chamber.
6. LNG gas turbine according to claim 5, which is characterized in that low-temperature flue gas is discharged into remaining by the combustion chamber
Heat boiler.
7. a kind of LNG gas turbine proficiency method for improving characterized by comprising
Receive the air from environment；
The air received is divided into two-way, air is fed through the gasification heat source in gasifier as LNG all the way, for absorbing
The gasification cold energy of LNG forms Cryogenic air；
The Cryogenic air of formation and another way air are fed through in mixed organization and carry out cold and hot mixing, obtains cold and hot be uniformly mixed
Air and be fed through in the compressor of LNG gas turbine.
8. the method according to the description of claim 7 is characterized in that the air that will be received is divided into two-way includes:
First flow is set on the admission line of gasifier and adjusts meter, and, the is arranged on the admission line of mixed organization
Two flow-controlling meters；
Meter is adjusted using first flow and second flow adjusts the flow and low temperature counted control and enter surrounding air in mixed structure
The flow of air.
9. the method according to the description of claim 7 is characterized in that the method is also wrapped when receiving the air from environment
It includes:
It receives the LNG from LNG air accumulator and is fed through in gasifier and carry out gasification process, the NG after being gasified；
The temperature of the NG after gasifying in gasifier is promoted using heater, and the pressure of the NG after promotion temperature is adjusted to default
Pressure, the NG that obtains that treated are simultaneously fed through combustion chamber.
10. according to the method described in claim 9, it is characterized in that, after obtaining cold and hot uniformly mixed air, the side
Method further include:
Cold and hot uniformly mixed air is fed through after entering compression processing in compressor and is fed through combustion chamber；
So that cold and hot uniformly mixed air and NG is completed combustion reaction in combustion chamber and form high temperature and high pressure flue gas, by high temperature and pressure
Flue gas is fed through after expansion work in turbine becomes low-temperature flue gas and is drained into progress heat exchange in waste heat boiler.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811208463.1A CN109356717A (en) | 2018-10-17 | 2018-10-17 | LNG gas turbine and its efficiency improving device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811208463.1A CN109356717A (en) | 2018-10-17 | 2018-10-17 | LNG gas turbine and its efficiency improving device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925793A (en) * | 2019-12-27 | 2020-03-27 | 广州智光节能有限公司 | Fuel calorific value control device and control method of multi-gas-source gas turbine |
| CN111577460A (en) * | 2020-05-09 | 2020-08-25 | 广州华跃电力工程设计有限公司 | Method for improving efficiency of gas turbine and removing white smoke |
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| CN103557071A (en) * | 2013-10-25 | 2014-02-05 | 张毅 | System and method for utilizing gas cold energy to improve engine heat efficiency and achieve aims of saving energy and reducing emission |
| CN209115208U (en) * | 2018-10-17 | 2019-07-16 | 广州智光节能有限公司 | LNG gas turbine proficiency lifting device and LNG gas turbine |
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