CN116658308A - Indirect cooling type gas turbine power system and operation method thereof - Google Patents
Indirect cooling type gas turbine power system and operation method thereof Download PDFInfo
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- CN116658308A CN116658308A CN202310635623.5A CN202310635623A CN116658308A CN 116658308 A CN116658308 A CN 116658308A CN 202310635623 A CN202310635623 A CN 202310635623A CN 116658308 A CN116658308 A CN 116658308A
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- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 594
- 239000001257 hydrogen Substances 0.000 claims abstract description 210
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 210
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 199
- 239000007789 gas Substances 0.000 claims abstract description 115
- 238000002485 combustion reaction Methods 0.000 claims abstract description 103
- 238000006243 chemical reaction Methods 0.000 claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 claims abstract description 81
- 238000002407 reforming Methods 0.000 claims abstract description 74
- 239000000446 fuel Substances 0.000 claims abstract description 53
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003546 flue gas Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims description 208
- 239000002994 raw material Substances 0.000 claims description 165
- 239000007795 chemical reaction product Substances 0.000 claims description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000047 product Substances 0.000 claims description 21
- 239000012527 feed solution Substances 0.000 claims description 19
- 239000012263 liquid product Substances 0.000 claims description 14
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 150000002431 hydrogen Chemical class 0.000 claims description 11
- 239000002918 waste heat Substances 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 10
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 239000000112 cooling gas Substances 0.000 description 15
- 239000006200 vaporizer Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006057 reforming reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- 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
- F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
- F02C3/305—Increasing the power, speed, torque or efficiency of a gas turbine or the thrust of a turbojet engine by injecting or adding water, steam or other fluids
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- 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 application provides an indirect cooling type gas turbine power system and an operation method thereof, wherein the system comprises: the device comprises a low-pressure compressor, a high-pressure compressor, a combustion chamber, a turbine and a methanol reforming hydrogen production device; the low-pressure compressor compresses the entering air to obtain first compressed air carrying heat energy; the methanol reforming hydrogen production device generates a methanol reforming hydrogen production reaction by utilizing heat energy to generate hydrogen and obtain cooled first compressed air; the high-pressure compressor compresses the cooled first compressed air to obtain second compressed air; the combustion chamber mixes and combusts the second compressed air with the hydrogen and the fuel entering the combustion chamber to obtain flue gas; the turbine works based on the flue gas and outputs energy. The methanol reforming hydrogen production device is coupled with the gas turbine, and the heat energy carried by the compressed air at the outlet of the low-pressure compressor of the gas turbine is utilized to provide energy for the methanol reforming hydrogen production reaction, so that the inlet temperature of the high-pressure compressor can be reduced, the interstage compression heat of the gas turbine is reasonably utilized, and the energy waste is reduced.
Description
Technical Field
The application relates to the field of gas turbines, in particular to an indirect cooling type gas turbine power system and an operation method thereof.
Background
With the increasing severity of environmental problems, people's awareness of environmental protection is also increasing. Gas turbines have been developed rapidly in recent years due to their rapid start-stop, high efficiency, low emissions, and the like.
In the related art, an indirect cooling heat exchanger is generally installed between a low-pressure compressor and a high-pressure compressor, so as to realize indirect cooling circulation, reduce the temperature of compressed air at an inlet of the high-pressure compressor, and further reduce the power consumption of the high-pressure compressor. The indirect cooling circulation energy is adopted to effectively reduce the power consumption of the gas turbine compressor, improve the pressure ratio of the whole gas turbine, improve the turbine functional capacity and be an effective way for improving the output power of the gas turbine.
However, the compressed air at the low-pressure compressor outlet of the indirect-cooling gas turbine carries a large amount of heat energy, and there is a problem of heat energy waste.
Disclosure of Invention
The application provides an indirect cooling type gas turbine power system and an operation method thereof, which at least solve the technical problem of heat energy waste carried by compressed air at a low-pressure compressor outlet of an indirect cooling type gas turbine in the related art.
An embodiment of a first aspect of the present application provides an indirect-cooling gas turbine power system, including: the device comprises a low-pressure compressor, a high-pressure compressor, a combustion chamber connected with an outlet of the high-pressure compressor, a turbine connected with the outlet of the combustion chamber, and a methanol reforming hydrogen production device respectively connected with the outlet of the low-pressure compressor, an inlet of the high-pressure compressor and a fuel inlet of the combustion chamber; the low-pressure air compressor is used for compressing the entering air to obtain first compressed air carrying heat energy; the methanol reforming hydrogen production device is used for generating a methanol reforming hydrogen production reaction by utilizing the heat energy to generate hydrogen and obtaining the cooled first compressed air; the high-pressure compressor is used for compressing the cooled first compressed air to obtain second compressed air; the combustion chamber is used for mixing and combusting the second compressed air with the hydrogen and the fuel entering the combustion chamber to obtain flue gas; the turbine is used for doing work based on the flue gas and outputting energy.
As one possible implementation manner, the indirect cooling type gas turbine power system further includes: the flue gas inlet of the waste heat boiler is connected with the outlet of the turbine; the waste heat boiler is used for providing energy for other bottom circulation systems based on heat energy carried by the flue gas after acting and discharged by the turbine.
As one possible implementation manner, the methanol reforming hydrogen production device includes: a raw material liquid generation module; the reaction module is respectively connected with the outlet of the low-pressure compressor, the inlet of the high-pressure compressor, the cold side outlet and the hot side inlet of the raw material liquid generating module; a hydrogen generation module connected to a hot side outlet of the raw material liquid generation module and a fuel inlet of the combustion chamber; the raw material liquid generating module is used for generating methanol raw material liquid and transmitting the methanol raw material liquid to the reaction module through a cold side outlet of the raw material liquid generating module; the reaction module is used for generating a reaction product by utilizing heat energy carried by the first compressed air output by the outlet of the low-pressure compressor based on the methanol raw material liquid, obtaining cooled first compressed air, transmitting the reaction product to the raw material liquid generation module through the hot side inlet, and transmitting the obtained cooled first compressed air to the high-pressure compressor through the inlet of the high-pressure compressor; the hydrogen generation module is used for obtaining the reaction product through the hot side outlet, generating the hydrogen based on the reaction product and transmitting the hydrogen to the combustion chamber through the fuel inlet.
As a possible implementation manner, the reaction module includes: a reactor and a gasifier; the pipe side inlet of the reactor is connected with the outlet of the low-pressure compressor, the pipe side outlet of the reactor is connected with the hot side inlet of the gasifier, and the hot side outlet of the gasifier is connected with the inlet of the high-pressure compressor; the first compressed air output from the outlet of the low-pressure compressor enters the reactor through a pipe side inlet of the reactor, is output from the pipe side outlet of the reactor, enters the gasifier through a hot side inlet of the gasifier, is output through a hot side outlet of the gasifier, and enters the high-pressure compressor through an inlet of the high-pressure compressor; the cold side inlet of the gasifier is connected with the cold side outlet of the raw material liquid generating module, the cold side outlet of the gasifier is connected with the shell side inlet of the reactor, and the shell side outlet of the reactor is connected with the hot side inlet of the raw material liquid generating module; the gasifier is used for heating by utilizing heat energy carried by the first compressed air passing through the gasifier so as to gasify the methanol raw material liquid output by the cold side outlet of the raw material liquid generating module into gaseous reaction raw material, and the reaction raw material is input into the shell side of the reactor through the shell side inlet of the reactor; the reactor is used for generating reaction products by utilizing heat energy carried by the first compressed air passing through the reactor and generating the methanol reforming hydrogen production reaction on the shell side based on the reaction raw materials, and transmitting the reaction products to the raw material liquid generating module through a hot side inlet of the raw material liquid generating module.
As a possible implementation, the shell side of the reactor is filled with catalyst; the reactor is specifically used for utilizing heat energy carried by the first compressed air passing through the reactor, and based on the reaction raw materials, the methanol reforming hydrogen production reaction occurs under the action of the catalyst on the shell side so as to generate reaction products.
As one possible implementation manner, the raw material liquid generating module includes: a raw material liquid generation submodule and a preheater; the preheater has a cold side inlet, a cold side outlet, a hot side inlet, and a hot side outlet; the outlet of the raw material liquid generating submodule is connected with the cold side inlet of the preheater; the cold side outlet of the raw material liquid generating module is the cold side outlet of the preheater, the hot side inlet of the raw material liquid generating module is the hot side inlet of the preheater, and the hot side outlet of the raw material liquid generating module is the hot side outlet of the preheater; the reaction products generated by the reaction module enter the preheater through a hot side inlet of the preheater and are output from a hot side outlet of the preheater; the raw material liquid generation submodule is used for generating the methanol raw material liquid and transmitting the methanol raw material liquid to the preheater through a cold side inlet of the preheater; the preheater is used for preheating the methanol raw material liquid by utilizing the reaction product entering the preheater, and transmitting the preheated methanol raw material liquid to the reaction module through a cold side outlet of the preheater.
As one possible implementation manner, the raw material liquid generating submodule includes: a desalted water storage tank, a methanol storage tank and a methanol raw material liquid pump; the inlet of the methanol raw material pump is respectively connected with the outlet of the desalted water storage tank and the outlet of the methanol storage tank; the outlet of the raw material liquid generating submodule is the outlet of the methanol raw material liquid pump; the methanol raw material liquid pump is used for pressurizing the methanol raw material liquid entering the methanol raw material liquid pump from an inlet of the methanol raw material liquid pump and transmitting the pressurized methanol raw material liquid to the preheater through a cold side inlet of the preheater; the methanol raw material liquid entering the methanol raw material pump is formed by mixing desalted water in the desalted water storage tank and methanol in the methanol storage tank according to a first preset proportion.
As one possible implementation, the hydrogen generation module includes: the device comprises a cooler, a gas-liquid separator, a pressure swing adsorber and a hydrogen storage tank; the inlet of the cooler is connected with the hot side outlet of the preheater; the outlet of the cooler is connected with the inlet of the gas-liquid separator; the gas side outlet of the gas-liquid separator is connected with the inlet of the pressure swing adsorber; the outlet of the pressure swing absorber is connected with the inlet of the hydrogen storage tank; the outlet of the hydrogen storage tank is connected with the fuel inlet of the combustion chamber; the cooler is used for cooling the reaction product transmitted to the cooler through a hot side outlet of the preheater to obtain a cooled reaction product, and transmitting the cooled reaction product to the gas-liquid separator through an inlet of the gas-liquid separator; the gas-liquid separator is used for performing gas-liquid separation on the cooled reaction product entering the gas-liquid separator to obtain a gaseous product, and transmitting the gaseous product to the pressure swing adsorber through the gas side outlet; the pressure swing absorber is used for purifying gaseous products entering the pressure swing absorber to obtain the hydrogen, and transmitting the hydrogen to the hydrogen storage tank through an inlet of the hydrogen storage tank; the hydrogen storage tank is used for storing the hydrogen, and part of the hydrogen in the hydrogen is transmitted to the fuel inlet of the combustion chamber through the outlet of the hydrogen storage tank, so that the part of the hydrogen and the fuel are mixed according to a second preset proportion and then enter the combustion chamber for combustion.
As a possible implementation manner, the gas-liquid separator further has a liquid side outlet, and the liquid side outlet is connected with an inlet of the methanol raw material pump; the gas-liquid separator performs gas-liquid separation on the cooled reaction product entering the gas-liquid separator, and liquid product is also obtained; the gas-liquid separator is further used for conveying the liquid product to the methanol raw material liquid pump through the liquid side outlet so as to mix the liquid product with the methanol raw material liquid entering the methanol raw material liquid pump.
An embodiment of a second aspect of the present application provides a method for operating an indirect-cooled gas turbine power system, the method comprising: the low-pressure compressor is adopted to compress the entering air to obtain first compressed air carrying heat energy; the methanol reforming hydrogen production device is adopted, the heat energy is utilized to generate a methanol reforming hydrogen production reaction to generate hydrogen, and the cooled first compressed air is obtained; compressing the cooled first compressed air by adopting the high-pressure compressor to obtain second compressed air; mixing and combusting the second compressed air, the hydrogen entering the combustion chamber and fuel by adopting the combustion chamber to obtain flue gas; and the turbine is adopted to do work and output energy based on the flue gas.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects:
according to the indirect cooling type gas turbine power system and the operation method thereof, the gas turbine adopts the two compressors and performs interstage cooling, so that the compressor power consumption of the gas turbine can be effectively reduced, the pressure ratio of the whole gas turbine is improved, the turbine working capacity is improved, the output power of the gas turbine and the efficiency of the gas turbine are improved, the methanol reforming hydrogen production device is coupled with the gas turbine, the heat energy carried by the compressed air at the outlet of the low-pressure compressor of the gas turbine is utilized for providing energy for the methanol reforming hydrogen production reaction, the inlet temperature of the high-pressure compressor can be reduced, the interstage compression heat of the gas turbine is reasonably utilized, the waste of energy is reduced, the equipment cost of a boiler, a heat conducting oil storage tank and the like in the traditional methanol reforming hydrogen production process and the fuel cost required for operation are reduced, the hydrogen production and manufacturing cost is reduced, the hydrogen produced by mixing and burning the hydrogen in the combustion chamber of the gas turbine can be reduced, the combustion cost of the gas turbine is accelerated, the combustion process of the fuel in the combustion chamber is accelerated, the combustion efficiency of the gas turbine is improved, and the performance of the gas turbine is improved. Because the combustion product of the hydrogen is only water, the emission performance of the gas turbine can be effectively improved and the pollutant emission of the gas turbine can be reduced through hydrogen-doped combustion.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a block diagram of an indirect-cooled gas turbine power system according to one embodiment of the present application;
FIG. 2 is a block diagram of an indirect-cooled gas turbine power system according to another embodiment of the present application;
FIG. 3 is a block diagram of an indirect-cooled gas turbine power system according to another embodiment of the present application;
FIG. 4 is a block diagram of an indirect-cooled gas turbine power system according to another embodiment of the present application;
FIG. 5 is a block diagram of an indirect-cooled gas turbine power system according to another embodiment of the present application;
FIG. 6 is a flow chart of a method of operating an indirect-cooled gas turbine power system according to one embodiment of the present application;
reference numerals:
the device comprises a low-pressure compressor-1, a high-pressure compressor-2, a combustion chamber-3, a turbine-4, a methanol reforming hydrogen production device-5, a waste heat boiler-6, a raw material liquid generating module-51, a reaction module-52, a hydrogen generating module-53, a reactor-521, a gasifier-522, a raw material liquid generating sub-module-511, a preheater-512, a desalted water storage tank-5111, a methanol storage tank-5112, a methanol raw material liquid pump-5113, a cooler-531, a gas-liquid separator-532, a pressure swing adsorber-533 and a hydrogen storage tank-534.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
In the related art, an indirect cooling heat exchanger is generally installed between a low-pressure compressor and a high-pressure compressor, so as to realize indirect cooling circulation, reduce the temperature of compressed air at an inlet of the high-pressure compressor, and further reduce the power consumption of the high-pressure compressor. The indirect cooling circulation energy is adopted to effectively reduce the power consumption of the gas turbine compressor, improve the pressure ratio of the whole gas turbine, improve the turbine functional capacity and be an effective way for improving the output power of the gas turbine. However, the compressed air at the low-pressure compressor outlet of the indirect-cooling gas turbine carries a large amount of heat energy, and there is a problem of heat energy waste.
In addition, in a large environment with energy conservation and emission reduction, as a clean and efficient fuel, hydrogen has an energy density 2.68 times that of gasoline, and water is the only product of combustion, so hydrogen is considered as one of the most potential fossil fuel substitutes. There is an increasing global search for hydrogen production and utilization. The hydrogen production technology directly affects the cost of hydrogen energy and the development of hydrogen energy. Methanol is the most potential hydrogen source in reforming reaction, and has the advantages of simple structure, easy transportation, easy acquisition, low reforming reaction temperature, high hydrogen content in reformate, and the like. For the combustion process of the gas turbine, the addition of hydrogen accelerates the combustion process of fuel, promotes the combustion of hydrocarbon, improves the combustion efficiency, expands the stable lean limit of fuel, can improve the emission performance of the gas turbine, and reduces the content of pollutants in the exhaust gas of the gas turbine.
Methanol reforming hydrogen production is a strong endothermic reaction, requiring constant heat supply to gasify the reaction materials and maintain the reaction.
The indirect cooling type gas turbine power system and the operation method thereof can couple the indirect cooling type gas turbine with the methanol reforming hydrogen production device, provide energy for the methanol reforming hydrogen production reaction by utilizing the heat energy carried by the compressed air at the outlet of the low-pressure compressor, make the energy more reasonably utilized, reduce the equipment cost of a boiler, a heat conducting oil storage tank and the like in the traditional methanol reforming hydrogen production process, and greatly reduce the fuel cost required by operation and the hydrogen energy production cost. And the performance of the gas turbine is also effectively improved through hydrogen-doped combustion. The combination of the two can effectively improve the overall capability of the system.
An indirect-cooling gas turbine power system and an operation method thereof according to an embodiment of the present application are described below with reference to the accompanying drawings.
Fig. 1 is a block diagram of an indirect cooling gas turbine power system according to an embodiment of the present application.
As shown in fig. 1, the indirect-cooling gas turbine power system includes:
the device comprises a low-pressure compressor 1, a high-pressure compressor 2, a combustion chamber 3 connected with an outlet of the high-pressure compressor 2, a turbine 4 connected with the outlet of the combustion chamber 3, and a methanol reforming hydrogen production device 5 respectively connected with the outlet of the low-pressure compressor 1, an inlet of the high-pressure compressor 2 and a fuel inlet of the combustion chamber 3;
The low-pressure compressor 1 is used for compressing the entering air to obtain first compressed air carrying heat energy;
a methanol reforming hydrogen production device 5 for generating a methanol reforming hydrogen production reaction to generate hydrogen by using heat energy and obtaining cooled first compressed air;
the high-pressure compressor 2 is used for compressing the cooled first compressed air to obtain second compressed air;
the combustion chamber 3 is used for mixing and combusting the second compressed air with the hydrogen and the fuel which enter the combustion chamber 3 to obtain flue gas;
and the turbine 4 is used for doing work based on the flue gas and outputting energy.
Referring to fig. 1, an outlet of a low pressure compressor 1 is connected with an inlet of a methanol reforming hydrogen production device 5, after air enters the low pressure compressor 1, the low pressure compressor 1 can compress the air entering the low pressure compressor 1 to obtain first compressed air carrying heat energy, and the first compressed air carrying heat energy is transmitted to the methanol reforming hydrogen production device 5 through the outlet of the low pressure compressor 1 and the inlet of the methanol reforming hydrogen production device 5, so that the methanol reforming hydrogen production device 5 can utilize the heat energy carried by the first compressed air to generate a methanol reforming hydrogen production reaction to generate hydrogen, and the first compressed air is cooled to become cooled first compressed air by providing energy for the methanol reforming hydrogen production reaction. The first outlet of the methanol reforming hydrogen production device 5 is connected with the inlet of the high-pressure compressor 2, the outlet of the high-pressure compressor 2 is connected with the air inlet of the combustion chamber 3, the methanol reforming hydrogen production device 5 can transmit cooled first compressed air to the high-pressure compressor 2 through the first outlet and the inlet of the high-pressure compressor 2, and then the high-pressure compressor 2 can compress the cooled first compressed air to obtain second compressed air, and the second compressed air is transmitted to the combustion chamber 3 through the outlet of the high-pressure compressor 2 and the air inlet of the combustion chamber 3. The second outlet of the methanol reforming hydrogen production device 5 is connected with the fuel inlet of the combustion chamber 3, and the methanol reforming hydrogen production device 5 can transmit hydrogen to the combustion chamber 3 through the second outlet and the fuel inlet of the combustion chamber 3. In addition, the fuel can enter the combustion chamber 3 through the fuel inlet of the combustion chamber 3, and then the combustion chamber 3 can mix and burn the second compressed air, the hydrogen entering the combustion chamber 3 and the fuel, so as to obtain high-temperature and high-pressure flue gas. The outlet of the combustion chamber 3 is connected to the inlet of the turbine 4, so that the combustion chamber 3 can transmit the flue gas to the turbine 4, and the turbine 4 can do work and output energy based on the flue gas.
Therefore, the indirect cooling type gas turbine power system provided by the embodiment of the application can effectively reduce the compressor power consumption of the gas turbine by adopting two compressors and performing inter-stage cooling, improve the pressure ratio of the whole gas turbine, improve the turbine function, improve the output power of the gas turbine and the efficiency of the gas turbine, and provide energy for the methanol reforming hydrogen production reaction by using the heat energy carried by the compressed air at the outlet of the low-pressure compressor of the gas turbine through coupling the methanol reforming hydrogen production device with the gas turbine, so that the inlet temperature of the high-pressure compressor can be reduced, the inter-stage compression heat of the gas turbine can be reasonably utilized, the waste of energy is reduced, the equipment cost of a boiler, a heat conducting oil storage tank and the like in the traditional methanol reforming hydrogen production process and the fuel cost required for operation are reduced, the hydrogen production and manufacturing cost is reduced, and the hydrogen produced by the methanol reforming hydrogen production device is mixed and burned in the combustion chamber of the gas turbine, so that the combustion cost of the gas turbine can be reduced, the combustion process of fuel in the combustion chamber is accelerated, the combustion of hydrocarbon is promoted, the combustion efficiency of the gas turbine is improved, and the performance of the gas turbine is improved. Because the combustion product of the hydrogen is only water, the emission performance of the gas turbine can be effectively improved and the pollutant emission of the gas turbine can be reduced through hydrogen-doped combustion.
Further, as shown in fig. 2, the indirect cooling gas turbine power system further comprises a waste heat boiler 6. The exhaust-heat boiler 6 has a flue gas inlet connected with an outlet of the turbine 4, the turbine 4 can discharge the flue gas after doing work to the exhaust-heat boiler 6, and the heat energy carried by the flue gas after doing work is transferred to working media in the exhaust-heat boiler 6, so that the exhaust-heat boiler 6 can provide energy for other bottom circulation systems based on the heat energy carried by the flue gas after doing work and discharged by the turbine 4.
Therefore, energy can be better utilized in a cascade way, and the performance of the power system of the gas turbine is improved.
Further, in addition to the indirect cooling type gas turbine power system of the foregoing embodiment, as shown in fig. 3, the methanol reforming hydrogen production device 5 may include: a raw material liquid generation module 51; a reaction module 52 connected to the outlet of the low-pressure compressor 1, the inlet of the high-pressure compressor 2, the cold side outlet of the raw material liquid generating module 51, and the hot side inlet of the raw material liquid generating module 51, respectively; a hydrogen generation module 53 connected to the hot side outlet of the raw material liquid generation module 51 and the fuel inlet of the combustion chamber 3.
Wherein, the raw material liquid generating module 51 is used for generating a methanol raw material liquid and transmitting the methanol raw material liquid to the reaction module 52 through a cold side outlet of the raw material liquid generating module 51;
A reaction module 52, configured to generate a reaction product by using heat energy carried by the first compressed air output from the outlet of the low-pressure compressor 1 and performing a methanol reforming hydrogen production reaction based on the methanol raw material liquid, to obtain cooled first compressed air, and to transmit the reaction product to the raw material liquid generating module 51 through the hot-side inlet, and to transmit the obtained cooled first compressed air to the high-pressure compressor 2 through the inlet of the high-pressure compressor 2;
the hydrogen generation module 53 is configured to obtain a reaction product through the hot side outlet, generate hydrogen based on the reaction product, and transmit the hydrogen to the combustion chamber 3 through the fuel inlet.
Specifically, the reaction module 52 has a first inlet, a second inlet, a first outlet, and a second outlet. The raw material liquid generating module 51 has a hot side inlet, a hot side outlet, and a cold side outlet. The hydrogen generation module 53 has an inlet and an outlet. Wherein, the inlet of the methanol reforming hydrogen production device 5 is a first inlet of the reaction module 52 and is connected with the outlet of the low-pressure compressor 1; the first outlet of the methanol reforming hydrogen production device 5 is a first outlet of the reaction module 52 and is connected with the inlet of the high-pressure compressor 2; a second inlet of the reaction module 52 is connected with a cold side outlet of the raw material liquid generating module 51; the second outlet of the reaction module 52 is connected to the hot side inlet of the raw material liquid generation module 51. The hot side outlet of the raw material liquid generating module 51 is connected with the inlet of the hydrogen generating module 53, the outlet of the hydrogen generating module 53 is the second outlet of the methanol reforming hydrogen generating device 5, and is connected with the fuel inlet of the combustion chamber 3.
The raw material liquid generating module 51 may generate a methanol raw material liquid and transfer the methanol raw material liquid to the reaction module 52 through a cold side outlet of the raw material liquid generating module 51, a second inlet of the reaction module 52. The reaction module 52 may utilize heat energy carried by the first compressed air output from the outlet of the low pressure compressor 1 to generate a reaction product based on the methanol reforming hydrogen production reaction of the methanol raw material liquid, obtain cooled first compressed air, and transmit the reaction product to the raw material liquid generating module 51 through the second outlet of the reaction module 52 and the hot side inlet of the raw material liquid generating module 51, so that the raw material liquid generating module 51 may transmit the reaction product to the hydrogen generating module 53 through the hot side outlet of the raw material liquid generating module 51 and the inlet of the hydrogen generating module 53. The reaction module 52 may transmit the cooled first compressed air to the high-pressure compressor 2 through the first outlet of the reaction module 52 and the inlet of the high-pressure compressor 2. The hydrogen generation module 53 may generate hydrogen based on the obtained reaction product and transfer the hydrogen to the combustion chamber 3 through an outlet of the hydrogen generation module 53, a fuel inlet of the combustion chamber 3.
Further, in addition to the indirect cooling gas turbine power system of the foregoing embodiment, as shown in fig. 3, the reaction module 52 in the methanol reforming hydrogen production device 5 may include: a reactor 521 and a gasifier 522. Wherein the reactor 521 has a pipe side inlet, a pipe side outlet, a shell side inlet, and a shell side outlet; the gasifier 522 has a hot side inlet, a hot side outlet, a cold side inlet, and a cold side outlet. Wherein the first inlet of the reaction module 52 is a pipe side inlet of the reactor 521, the second outlet of the reaction module 52 is a shell side outlet of the reactor 521, the second inlet of the reaction module 52 is a cold side inlet of the gasifier 522, and the first outlet of the reaction module 52 is a hot side outlet of the gasifier 522.
Specifically, the pipe side inlet of the reactor 521 is connected to the outlet of the low pressure compressor 1, the pipe side outlet of the reactor 521 is connected to the hot side inlet of the gasifier 522, and the hot side outlet of the gasifier 522 is connected to the inlet of the high pressure compressor 2; the first compressed air output from the outlet of the low pressure compressor 1 enters the reactor 521 through the pipe side inlet of the reactor 521, and is output from the pipe side outlet of the reactor 521, enters the gasifier 522 through the hot side inlet of the gasifier 522, and is output through the hot side outlet of the gasifier 522, and enters the high pressure compressor 2 through the inlet of the high pressure compressor 2.
The cold side inlet of the vaporizer 522 is connected to the cold side outlet of the raw material liquid generation module 51, the cold side outlet of the vaporizer 522 is connected to the shell side inlet of the reactor 521, and the shell side outlet of the reactor 521 is connected to the hot side inlet of the raw material liquid generation module 51. The vaporizer 522 may be heated by heat energy carried by the first compressed air passing through the vaporizer 522 to gasify the methanol feed liquid input to the vaporizer 522 through the cold side outlet of the feed liquid generating module 51, the cold side inlet of the vaporizer 522 into the gaseous reaction feed, and to input the gaseous reaction feed to the shell side of the reactor 521 through the cold side outlet of the vaporizer 522, the shell side inlet of the reactor 521. The reactor 521 may generate a reaction product by reforming methanol to produce hydrogen at a shell side of the reactor 521 based on a gaseous reaction raw material using heat energy carried by the first compressed air passing through the reactor 521, and transfer the reaction product to the raw material liquid generating module 51 through a shell side outlet of the reactor 521 and a hot side inlet of the raw material liquid generating module 51.
The raw material liquid generating module 51 may further transmit the reaction product to the hydrogen generating module 53 through a hot side outlet of the raw material liquid generating module 51 and an inlet of the hydrogen generating module 53, and the hydrogen generating module 53 may generate hydrogen based on the obtained reaction product and transmit the hydrogen to the combustion chamber 3 through an outlet of the hydrogen generating module 53 and a fuel inlet of the combustion chamber 3.
Wherein, the shell side of the reactor 521 is filled with a catalyst required for the hydrogen production reaction by reforming methanol, and the reactor 521 can utilize heat energy carried by the first compressed air passing through the reactor 521, and based on gaseous reaction raw materials, the hydrogen production reaction by reforming methanol occurs under the action of the catalyst on the shell side to produce reaction products.
Further, in addition to the indirect cooling gas turbine power system according to any of the above embodiments, as shown in fig. 4, the raw material liquid generating module 51 includes: a raw material liquid generation sub-module 511 and a preheater 512.
Wherein the preheater 512 has a cold side inlet, a cold side outlet, a hot side inlet, and a hot side outlet, and the outlet of the raw material liquid generating sub-module 511 is connected to the cold side inlet of the preheater 512; the cold side outlet of the raw material liquid generating module 51 is the cold side outlet of the preheater 512, the hot side inlet of the raw material liquid generating module 51 is the hot side inlet of the preheater 512, and the hot side outlet of the raw material liquid generating module 51 is the hot side outlet of the preheater 512. The reaction product produced by the reaction module 52 enters the preheater 512 through the hot side inlet of the preheater 512 and is output from the hot side outlet of the preheater 512 to the hydrogen generation module 53.
Specifically, the raw material liquid generating sub-module 511 may generate a methanol raw material liquid, and transfer the methanol raw material liquid to the preheater 512 through an outlet of the raw material liquid generating sub-module 511 and a cold side inlet of the preheater 512. The preheater 512 may preheat the methanol feed solution using the reaction product entering the preheater 512, and transfer the preheated methanol feed solution to the vaporizer 522 in the reaction module 52 through the cold side outlet of the preheater 512 and the cold side inlet of the vaporizer 522.
By adopting the heat carried by the reaction product generated by the reaction module 52 to preheat the methanol raw material liquid, the reasonable utilization of energy can be further realized, and the waste of energy is reduced.
Further, in addition to the indirect cooling type gas turbine power system of the foregoing embodiment, as shown in fig. 5, the raw material liquid generating sub-module 511 may include: a desalted water tank 5111, a methanol tank 5112 and a methanol feed pump 5113. Wherein, the inlet of the methanol feed solution pump 5113 is connected with the outlet of the desalted water storage tank 5111 and the outlet of the methanol storage tank 5112 respectively, and the outlet of the feed solution generating submodule 511 is the outlet of the methanol feed solution pump 5113.
Desalted water can be stored in the desalted water storage tank 5111, methanol can be stored in the methanol storage tank 5112, and the desalted water and the methanol can be mixed into a methanol raw material liquid according to a first preset proportion. The methanol feed solution pump 5113 may pressurize the methanol feed solution entering the methanol feed solution pump 5113 from an inlet of the methanol feed solution pump 5113 and may transfer the pressurized methanol feed solution to the preheater 512 through an outlet of the methanol feed solution pump 5113 and a cold side inlet of the preheater 512. The first preset proportion can be set according to requirements, and the application is not limited to the first preset proportion.
Further, in addition to the indirect cooling type gas turbine power system of the foregoing embodiment, as shown in fig. 5, the hydrogen generating module 53 may include: a cooler 531, a gas-liquid separator 532, a pressure swing adsorber 533, and a hydrogen storage tank 534. The inlet of the hydrogen generation module 53 is the inlet of the cooler 531. The liquid separator 532 has an inlet, a gas side outlet, and a liquid side outlet.
The inlet of the cooler 531 is connected to the hot side outlet of the preheater 512; the outlet of the cooler 531 is connected to the inlet of the gas-liquid separator 532; the gas side outlet of the gas-liquid separator 532 is connected to the inlet of the pressure swing adsorber 533; the liquid side outlet of the gas-liquid separator 532 is connected to the inlet of the methanol feed liquid pump 5113; the outlet of the pressure swing adsorber 533 is connected to the inlet of the hydrogen storage tank 534; the outlet of the hydrogen tank 534 is connected to the fuel inlet of the combustion chamber 3.
The cooler 531 may cool the reaction product transferred to the cooler 531 through the hot side outlet of the preheater 512 and the inlet of the cooler 531 to obtain a cooled reaction product, and transfer the cooled reaction product to the gas-liquid separator 532 through the outlet of the cooler 531 and the inlet of the gas-liquid separator 532.
The gas-liquid separator 532 can perform gas-liquid separation on the cooled reaction product entering the gas-liquid separator 532 to obtain a gaseous product and a liquid product, and transmit the gaseous product to the pressure swing absorber 533 through the gas side outlet and the inlet of the pressure swing absorber 533, and transmit the liquid product to the methanol feed pump 5113 through the liquid side outlet and the inlet of the methanol feed pump 5113, so that the liquid product and the methanol feed liquid entering the methanol feed pump 5113 are mixed again and then used as raw materials for the methanol reforming hydrogen production reaction, and the waste of resources is reduced.
The pressure swing adsorber 533 may purify the gaseous product entering the pressure swing adsorber 533 to obtain hydrogen, and transfer the hydrogen to the hydrogen tank 534 through the outlet of the pressure swing adsorber 533 and the inlet of the hydrogen tank 534.
The hydrogen storage tank 534 may store hydrogen, and transmit a part of hydrogen in the hydrogen to the fuel inlet of the combustion chamber 3 through the outlet of the hydrogen storage tank 534, so that the part of hydrogen and the fuel are mixed according to a second preset ratio and then enter the combustion chamber 3 for combustion. The second preset proportion can be set according to requirements, and the application is not limited to the second preset proportion. In addition, the excess hydrogen in the hydrogen tank 534 other than the portion of hydrogen may be used as a product for other scenarios where hydrogen is needed.
The working principle of the indirect cooling type gas turbine power system provided by the embodiment of the application is described below with reference to fig. 5.
Referring to fig. 5, after air enters the low pressure compressor 1, the low pressure compressor 1 may compress the air entering therein to obtain first compressed air carrying heat energy, the first compressed air may enter the reactor 521 from a pipe side inlet of the reactor 521 to provide energy for the hydrogen production reaction of methanol reforming of the reactor 521, and then the first compressed air may flow out from a pipe side outlet of the reactor 521, enter the gasifier 522 from a hot side inlet of the gasifier 522 to provide energy for gasification of the methanol feed liquid in the gasifier 522. The first compressed air is cooled by providing energy for the gasification of the methanol raw material liquid and the hydrogen production reaction by reforming the methanol, and becomes cooled first compressed air. Further, the cooled first compressed air can enter the high-pressure compressor 2 to be compressed to obtain second compressed air, and the second compressed air can enter the combustion chamber 3 to be mixed with hydrogen and fuel entering the combustion chamber 3 to be combusted, so that high-temperature and high-pressure flue gas is obtained. The combustion chamber 3 may then transfer the flue gas to the turbine 4, and the turbine 4 may perform work and output energy based on the flue gas. Further, the turbine 4 can discharge the flue gas after doing work to the waste heat boiler 6, and transfer the heat energy carried by the flue gas after doing work to the working medium in the waste heat boiler 6, so that the waste heat boiler 6 can provide energy for other bottom circulation systems based on the heat energy carried by the flue gas after doing work and discharged by the turbine 4.
Desalted water can be stored in the desalted water storage tank 5111, methanol can be stored in the methanol storage tank 5112, and the desalted water and the methanol can be mixed into a methanol raw material liquid according to a first preset proportion. The methanol feed pump 5113 may pressurize the methanol feed solution entering the methanol feed pump 5113 from an inlet of the methanol feed pump 5113 and transfer the pressurized methanol feed solution from a cold side inlet of the preheater 512 to the preheater 512. Preheater 512 may preheat the methanol feedstock with the reaction product of the methanol reforming hydrogen production reaction and transfer the preheated methanol feedstock to vaporizer 522 through the cold side inlet of vaporizer 522. The vaporizer 522 may be heated with thermal energy carried by the first compressed air passing through the vaporizer 522 to gasify the methanol feed liquid entering the vaporizer 522 into gaseous reaction feed and to input the gaseous reaction feed to the shell side of the reactor 521 through the shell side inlet of the reactor 521. The gaseous reaction raw material is subjected to a methanol reforming hydrogen production reaction under the action of a catalyst positioned on the shell side of the reactor 521 to generate reaction products, the reaction products flow out from the shell side outlet of the reactor 521, enter the preheater 512 from the hot side inlet of the preheater 512 to preheat the methanol raw material liquid, and then flow out from the hot side outlet of the preheater 512 to enter the cooler 531 to be cooled. Further, the cooled reaction product may enter a gas-liquid separator 532 to achieve gas-liquid separation, so as to obtain a gaseous product and a liquid product. Wherein, the liquid product can enter the methanol feed liquid pump 5113 to be mixed with the methanol feed liquid to be re-involved in the hydrogen production reaction by reforming methanol, and the gaseous product can enter the pressure swing absorber 533 to be purified and stored in the hydrogen storage tank 534. Part of the hydrogen stored in the hydrogen storage tank 534 is mixed with fuel according to a second proportion and then enters the combustion chamber 3 to supply fuel for the gas turbine, and the redundant hydrogen is used as a product for other scenes needing hydrogen.
In summary, the indirect cooling gas turbine power system provided in this embodiment, the gas turbine adopts two compressors and performs inter-stage cooling, so that the compressor power consumption of the gas turbine can be effectively reduced, the pressure ratio of the whole gas turbine is improved, the turbine power performance is improved, the output power of the gas turbine and the gas turbine efficiency are improved, the methanol reforming hydrogen production device is coupled with the gas turbine, the heat energy carried by the compressed air at the outlet of the low-pressure compressor of the gas turbine is utilized to provide energy for the methanol reforming hydrogen production reaction, the inlet temperature of the high-pressure compressor can be reduced, the inter-stage compression heat of the gas turbine is reasonably utilized, the waste of energy is reduced, the equipment cost of boilers, heat conducting oil storage tanks and other equipment cost and the fuel cost required for operation in the traditional methanol reforming hydrogen production process are reduced, the hydrogen production manufacturing cost is reduced, the hydrogen produced by mixing and burning in the combustion chamber of the gas turbine can be reduced, the combustion cost of the gas turbine is accelerated, the combustion process of fuel in the combustion chamber is accelerated, the combustion efficiency of the gas turbine is improved, and the performance of the gas turbine is improved. Because the combustion product of the hydrogen is only water, the emission performance of the gas turbine can be effectively improved and the pollutant emission of the gas turbine can be reduced through hydrogen-doped combustion.
Based on the indirect-cooling gas turbine power system of the embodiment, the application also provides an operation method of the indirect-cooling gas turbine power system.
FIG. 6 is a flow chart of a method of operating an indirect-cooled gas turbine power system according to one embodiment of the present application. As shown in fig. 6, the operation method of the indirect cooling type gas turbine power system includes the following steps:
in step 601, the low-pressure compressor is used to compress the air to obtain the first compressed air carrying heat energy.
In step 602, a methanol reforming hydrogen production device is used, and a methanol reforming hydrogen production reaction occurs to produce hydrogen by using heat energy, and cooled first compressed air is obtained.
And 603, compressing the cooled first compressed air by adopting a high-pressure compressor to obtain second compressed air.
In step 604, the second compressed air and the hydrogen entering the combustion chamber from the fuel inlet are mixed with fuel to burn, so as to obtain flue gas.
Step 605, using a turbine to do work based on the flue gas and output energy.
The explanation of the operation method of the indirect-cooling gas turbine power system may refer to the explanation of the indirect-cooling gas turbine power system in the foregoing embodiment, and will not be repeated here.
As one possible implementation manner, the operation method of the indirect cooling type gas turbine power system may further include:
the waste heat boiler is adopted to provide energy for other bottom circulation systems based on heat energy carried by the flue gas after the turbine discharges the working.
As a possible implementation, step 602 may specifically include:
a raw material liquid generating module is adopted to generate a methanol raw material liquid, and the methanol raw material liquid is transmitted to a reaction module through a cold side outlet of the raw material liquid generating module;
the method comprises the steps of adopting a reaction module, utilizing heat energy carried by first compressed air output by an outlet of a low-pressure compressor, generating a reaction product based on methanol raw material liquid through a methanol reforming hydrogen production reaction to obtain cooled first compressed air, transmitting the reaction product to a raw material liquid generation module through a hot side inlet, and transmitting the obtained cooled first compressed air to the high-pressure compressor through an inlet of the high-pressure compressor;
the hydrogen generation module is used to obtain reaction products through the hot side outlet, generate hydrogen based on the reaction products, and transmit the hydrogen to the combustion chamber through the fuel inlet.
As a possible implementation manner, the first compressed air output from the outlet of the low-pressure compressor enters the reactor through the pipe-side inlet of the reactor, and is output from the pipe-side outlet of the reactor, enters the gasifier through the hot-side inlet of the gasifier, and is output through the hot-side outlet of the gasifier, and enters the high-pressure compressor through the inlet of the high-pressure compressor; step 602 may specifically include:
The method comprises the steps of heating by using heat energy carried by first compressed air passing through a gasifier to gasify methanol raw material liquid output by a cold side outlet of a raw material liquid generating module into gaseous reaction raw materials, and inputting the reaction raw materials into a shell side of a reactor through a shell side inlet of the reactor; the reactor is adopted, the heat energy carried by the first compressed air passing through the reactor is utilized, the reaction of producing hydrogen by reforming methanol on the shell side is carried out based on the reaction raw material, so as to generate reaction products, and the reaction products are transmitted to the raw material liquid generating module through a hot side inlet of the raw material liquid generating module.
As a possible implementation, the shell side of the reactor is filled with catalyst; the reactor specifically utilizes heat energy carried by first compressed air passing through the reactor, and based on reaction raw materials, methanol reforming hydrogen production reaction occurs under the action of a catalyst on the shell side to generate reaction products.
As a possible implementation manner, the reaction product generated by the reaction module enters the preheater through the hot side inlet of the preheater and is output from the hot side outlet of the preheater; step 602 specifically includes:
a raw material liquid generating submodule is adopted to generate a methanol raw material liquid, and the methanol raw material liquid is transmitted to the preheater through a cold side inlet of the preheater;
And preheating the methanol raw material liquid by using a reaction product entering the preheater by adopting the preheater, and transmitting the preheated methanol raw material liquid to the reaction module through a cold side outlet of the preheater.
As one possible implementation, the methanol feed solution pump may pressurize the methanol feed solution entering the methanol feed solution pump from an inlet of the methanol feed solution pump and transfer the pressurized methanol feed solution to the preheater through a cold side inlet of the preheater; wherein, the methanol raw material liquid entering the methanol raw material pump is formed by mixing desalted water in a desalted water storage tank and methanol in the methanol storage tank according to a first preset proportion.
As a possible implementation manner, step 602 specifically includes:
cooling the reaction product transmitted to the cooler through a hot side outlet of the preheater by adopting the cooler to obtain a cooled reaction product, and transmitting the cooled reaction product to the gas-liquid separator through an inlet of the gas-liquid separator;
adopting a gas-liquid separator to perform gas-liquid separation on the cooled reaction product entering the gas-liquid separator to obtain a gaseous product, and transmitting the gaseous product to a pressure swing adsorber through a gas side outlet;
purifying gaseous products entering the pressure swing absorber by adopting the pressure swing absorber to obtain hydrogen, and transmitting the hydrogen to the hydrogen storage tank through an inlet of the hydrogen storage tank;
And a hydrogen storage tank is adopted to store hydrogen, and part of hydrogen in the hydrogen is transmitted to a fuel inlet of the combustion chamber through an outlet of the hydrogen storage tank, so that part of hydrogen and fuel are mixed according to a second preset proportion and then enter the combustion chamber for combustion.
As a possible implementation manner, the gas-liquid separator performs gas-liquid separation on the cooled reaction product entering the gas-liquid separator, and liquid product is also obtained; step 602 further includes:
and a gas-liquid separator is adopted, and liquid products are transmitted to a methanol raw material liquid pump through a liquid side outlet, so that the liquid products are mixed with the methanol raw material liquid entering the methanol raw material liquid pump.
In summary, the method for operating an indirect cooling gas turbine power system provided in this embodiment, by adopting two compressors and performing inter-stage cooling on a gas turbine, the compressor power consumption of the gas turbine can be effectively reduced, the pressure ratio of the whole gas turbine is improved, the turbine operating capability is improved, the output power and the gas turbine efficiency of the gas turbine are improved, the methanol reforming hydrogen production device is coupled with the gas turbine, the heat energy carried by the compressed air at the outlet of the low-pressure compressor of the gas turbine is utilized to provide energy for the methanol reforming hydrogen production reaction, the inlet temperature of the high-pressure compressor can be reduced, the inter-stage compression heat of the gas turbine is reasonably utilized, the waste of energy is reduced, the equipment cost of boilers, heat conducting oil storage tanks and the like in the traditional methanol reforming hydrogen production process and the fuel cost required for operation are reduced, the hydrogen production manufacturing cost is reduced, and the combustion process of the fuel in the combustion chamber of the gas turbine can be reduced by mixing and burning the hydrogen produced by the methanol reforming hydrogen production device in the combustion chamber of the gas turbine, the combustion process of the fuel in the combustion chamber is accelerated, the combustion efficiency of the gas turbine is promoted, and the performance of the gas turbine is improved. Because the combustion product of the hydrogen is only water, the emission performance of the gas turbine can be effectively improved and the pollutant emission of the gas turbine can be reduced through hydrogen-doped combustion.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. An indirect-cooled gas turbine power system, comprising: the device comprises a low-pressure compressor, a high-pressure compressor, a combustion chamber connected with an outlet of the high-pressure compressor, a turbine connected with the outlet of the combustion chamber, and a methanol reforming hydrogen production device respectively connected with the outlet of the low-pressure compressor, an inlet of the high-pressure compressor and a fuel inlet of the combustion chamber;
the low-pressure air compressor is used for compressing the entering air to obtain first compressed air carrying heat energy;
the methanol reforming hydrogen production device is used for generating a methanol reforming hydrogen production reaction by utilizing the heat energy to generate hydrogen and obtaining the cooled first compressed air;
the high-pressure compressor is used for compressing the cooled first compressed air to obtain second compressed air;
the combustion chamber is used for mixing and combusting the second compressed air with the hydrogen and the fuel entering the combustion chamber to obtain flue gas;
The turbine is used for doing work based on the flue gas and outputting energy.
2. The indirect-cooled gas turbine power system of claim 1, further comprising a waste heat boiler, a flue gas inlet of the waste heat boiler being connected to an outlet of the turbine;
the waste heat boiler is used for providing energy for other bottom circulation systems based on heat energy carried by the flue gas after acting and discharged by the turbine.
3. The indirect-cooled gas turbine power system of claim 1, wherein the methanol reforming hydrogen plant comprises: a raw material liquid generation module; the reaction module is respectively connected with the outlet of the low-pressure compressor, the inlet of the high-pressure compressor, the cold side outlet and the hot side inlet of the raw material liquid generating module; a hydrogen generation module connected to a hot side outlet of the raw material liquid generation module and a fuel inlet of the combustion chamber;
the raw material liquid generating module is used for generating methanol raw material liquid and transmitting the methanol raw material liquid to the reaction module through a cold side outlet of the raw material liquid generating module;
the reaction module is used for generating a reaction product by utilizing heat energy carried by the first compressed air output by the outlet of the low-pressure compressor based on the methanol raw material liquid, obtaining cooled first compressed air, transmitting the reaction product to the raw material liquid generation module through the hot side inlet, and transmitting the obtained cooled first compressed air to the high-pressure compressor through the inlet of the high-pressure compressor;
The hydrogen generation module is used for obtaining the reaction product through the hot side outlet, generating the hydrogen based on the reaction product and transmitting the hydrogen to the combustion chamber through the fuel inlet.
4. The indirect-cooled gas turbine power system of claim 3, wherein the reaction module comprises: a reactor and a gasifier;
the pipe side inlet of the reactor is connected with the outlet of the low-pressure compressor, the pipe side outlet of the reactor is connected with the hot side inlet of the gasifier, and the hot side outlet of the gasifier is connected with the inlet of the high-pressure compressor; the first compressed air output from the outlet of the low-pressure compressor enters the reactor through a pipe side inlet of the reactor, is output from the pipe side outlet of the reactor, enters the gasifier through a hot side inlet of the gasifier, is output through a hot side outlet of the gasifier, and enters the high-pressure compressor through an inlet of the high-pressure compressor;
the cold side inlet of the gasifier is connected with the cold side outlet of the raw material liquid generating module, the cold side outlet of the gasifier is connected with the shell side inlet of the reactor, and the shell side outlet of the reactor is connected with the hot side inlet of the raw material liquid generating module; the gasifier is used for heating by utilizing heat energy carried by the first compressed air passing through the gasifier so as to gasify the methanol raw material liquid output by the cold side outlet of the raw material liquid generating module into gaseous reaction raw material, and the reaction raw material is input into the shell side of the reactor through the shell side inlet of the reactor; the reactor is used for generating reaction products by utilizing heat energy carried by the first compressed air passing through the reactor and generating the methanol reforming hydrogen production reaction on the shell side based on the reaction raw materials, and transmitting the reaction products to the raw material liquid generating module through a hot side inlet of the raw material liquid generating module.
5. The indirect-cooled gas turbine power system of claim 4, wherein the shell side of the reactor is filled with a catalyst;
the reactor is specifically used for utilizing heat energy carried by the first compressed air passing through the reactor, and based on the reaction raw materials, the methanol reforming hydrogen production reaction occurs under the action of the catalyst on the shell side so as to generate reaction products.
6. The indirect-cooled gas turbine power system of any one of claims 3-5, wherein the feed solution generation module comprises: a raw material liquid generation submodule and a preheater; the preheater has a cold side inlet, a cold side outlet, a hot side inlet, and a hot side outlet; the outlet of the raw material liquid generating submodule is connected with the cold side inlet of the preheater; the cold side outlet of the raw material liquid generating module is the cold side outlet of the preheater, the hot side inlet of the raw material liquid generating module is the hot side inlet of the preheater, and the hot side outlet of the raw material liquid generating module is the hot side outlet of the preheater; the reaction products generated by the reaction module enter the preheater through a hot side inlet of the preheater and are output from a hot side outlet of the preheater;
The raw material liquid generation submodule is used for generating the methanol raw material liquid and transmitting the methanol raw material liquid to the preheater through a cold side inlet of the preheater;
the preheater is used for preheating the methanol raw material liquid by utilizing the reaction product entering the preheater, and transmitting the preheated methanol raw material liquid to the reaction module through a cold side outlet of the preheater.
7. The indirect-cooled gas turbine power system of claim 6, wherein the feedstock solution generation sub-module comprises: a desalted water storage tank, a methanol storage tank and a methanol raw material liquid pump;
the inlet of the methanol raw material pump is respectively connected with the outlet of the desalted water storage tank and the outlet of the methanol storage tank; the outlet of the raw material liquid generating submodule is the outlet of the methanol raw material liquid pump;
the methanol raw material liquid pump is used for pressurizing the methanol raw material liquid entering the methanol raw material liquid pump from an inlet of the methanol raw material liquid pump and transmitting the pressurized methanol raw material liquid to the preheater through a cold side inlet of the preheater; the methanol raw material liquid entering the methanol raw material pump is formed by mixing desalted water in the desalted water storage tank and methanol in the methanol storage tank according to a first preset proportion.
8. The indirect-cooled gas turbine power system of claim 7, wherein the hydrogen generation module comprises: the device comprises a cooler, a gas-liquid separator, a pressure swing adsorber and a hydrogen storage tank; the inlet of the cooler is connected with the hot side outlet of the preheater; the outlet of the cooler is connected with the inlet of the gas-liquid separator; the gas side outlet of the gas-liquid separator is connected with the inlet of the pressure swing adsorber; the outlet of the pressure swing absorber is connected with the inlet of the hydrogen storage tank; the outlet of the hydrogen storage tank is connected with the fuel inlet of the combustion chamber;
the cooler is used for cooling the reaction product transmitted to the cooler through a hot side outlet of the preheater to obtain a cooled reaction product, and transmitting the cooled reaction product to the gas-liquid separator through an inlet of the gas-liquid separator;
the gas-liquid separator is used for performing gas-liquid separation on the cooled reaction product entering the gas-liquid separator to obtain a gaseous product, and transmitting the gaseous product to the pressure swing adsorber through the gas side outlet;
the pressure swing absorber is used for purifying gaseous products entering the pressure swing absorber to obtain the hydrogen, and transmitting the hydrogen to the hydrogen storage tank through an inlet of the hydrogen storage tank;
The hydrogen storage tank is used for storing the hydrogen, and part of the hydrogen in the hydrogen is transmitted to the fuel inlet of the combustion chamber through the outlet of the hydrogen storage tank, so that the part of the hydrogen and the fuel are mixed according to a second preset proportion and then enter the combustion chamber for combustion.
9. The indirect-cooled gas turbine power system of claim 8, wherein the gas-liquid separator further has a liquid side outlet connected to an inlet of the methanol feed stock pump; the gas-liquid separator performs gas-liquid separation on the cooled reaction product entering the gas-liquid separator, and liquid product is also obtained;
the gas-liquid separator is further used for conveying the liquid product to the methanol raw material liquid pump through the liquid side outlet so as to mix the liquid product with the methanol raw material liquid entering the methanol raw material liquid pump.
10. A method of operating an indirect-cooled gas turbine power system based on any one of claims 1-9, the method comprising:
the low-pressure compressor is adopted to compress the entering air to obtain first compressed air carrying heat energy;
The methanol reforming hydrogen production device is adopted, the heat energy is utilized to generate a methanol reforming hydrogen production reaction to generate hydrogen, and the cooled first compressed air is obtained;
compressing the cooled first compressed air by adopting the high-pressure compressor to obtain second compressed air;
the second compressed air, the hydrogen and the fuel entering the combustion chamber are mixed and combusted by adopting the combustion chamber, so that flue gas is obtained;
and the turbine is adopted to do work and output energy based on the flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310635623.5A CN116658308A (en) | 2023-05-30 | 2023-05-30 | Indirect cooling type gas turbine power system and operation method thereof |
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| CN202310635623.5A CN116658308A (en) | 2023-05-30 | 2023-05-30 | Indirect cooling type gas turbine power system and operation method thereof |
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