CN213630639U - Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine - Google Patents
Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine Download PDFInfo
- Publication number
- CN213630639U CN213630639U CN202022715825.5U CN202022715825U CN213630639U CN 213630639 U CN213630639 U CN 213630639U CN 202022715825 U CN202022715825 U CN 202022715825U CN 213630639 U CN213630639 U CN 213630639U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- water
- gas turbine
- cooling air
- air heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a gas turbine hot aisle cooling air heat exchanger exhaust waste heat utilization system, wherein, the gas turbine hot aisle cooling air heat exchanger includes the first heat exchanger housing to and connect gradually fan group, compressed air heat exchanger and natural gas heat exchanger in the first heat exchanger housing, be provided with the air access & exit on the first heat exchanger housing, be provided with the compressed air access & exit on the compressed air heat exchanger, be provided with the natural gas access & exit on the natural gas heat exchanger; a water-air heat exchanger disposed in the second heat exchanger shell, the water-air heat exchanger being provided with a water inlet and a water outlet and an air inlet and outlet; the water-water or water-steam heat exchanger is provided with a first working medium inlet and a second working medium outlet. The utility model discloses a gas turbine hot channel cooling air heat exchanger's that will directly arrange originally high temperature exhaust energy to atmosphere is used for heating heat supply feedwater, has reduced the primary energy resource consumption that the heat supply brought, will reach energy saving and consumption reduction's purpose.
Description
Technical Field
The utility model belongs to the technical field of the energy utilization, concretely relates to gas turbine hot aisle cooling air heat exchanger exhaust waste heat utilization system.
Background
In order to meet the development requirements of energy conservation and environmental protection, the gas turbine and the combined cycle power generation technology thereof which have the advantages of economy, high efficiency, low pollutant discharge, quick start and stop and the like are rapidly developed and applied in China.
At present, the initial temperature of a mainstream F-grade gas turbine reaches about 1400 ℃, and far exceeds the temperature resistance limit of most metal materials. In order to ensure safe and reliable operation of hot path components (including gas turbine combustors and turbine components) at high temperatures, cooling air channels are designed in key hot path components such as gas turbine combustor liners, nozzles, moving blades, and the like, to reduce the actual operating temperature of the hot path components. The hot path cooling air source is generally extracted from the middle stage or the last stage of a gas turbine compressor, the power consumption of the compressor is reduced for reducing the consumption of the cooling air, and meanwhile, a part of models of gas turbines (such as Mitsubishi M701F) are provided with hot path cooling air heat exchangers by utilizing the high-grade heat of the cooling air, as shown in figure 1. In a gas turbine hot channel cooling air heat exchanger, a fan sucks in cold air, the cold air is subjected to air extraction and convection heat exchange with a compressor in a TCA heat exchanger (a compressed air heat exchanger) to form hot air, the hot air is further subjected to convection heat exchange with cold natural gas in an FGH heat exchanger (a natural gas heat exchanger) and then is discharged into the atmosphere, generally, natural gas in the FGH heat exchanger can only recover about 60% of the heat extraction capacity of the compressor in the TCA heat exchanger, and the hot channel cooling air heat exchanger still can discharge a large amount of high-temperature air to the atmosphere (the temperature of the high-temperature air directly discharged under the design working condition exceeds 160 ℃ and the heat exceeds 4MW), so that energy waste and environmental heat pollution are caused.
In actual production, hot water is produced for heat supply by directly burning natural gas (such as a natural gas boiler) or by combined heat and power (steam extraction of a steam turbine or a boiler), but no matter which hot water production method is adopted, a large amount of primary energy (natural gas) is consumed.
At present, no heating system which has reasonable design, can fully utilize the exhaust waste heat of a gas turbine hot channel cooling air heat exchanger and has the characteristic of energy conservation exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, provide a gas turbine hot aisle cooling air heat exchanger exhaust waste heat utilization system, both usable gas turbine hot aisle cooling air heat exchanger exhaust waste heat can reduce the primary energy resource consumption in the heat supply process again.
The utility model discloses a following technical scheme realizes:
a gas turbine hot aisle cooling air heat exchanger exhaust waste heat utilization system comprises a gas turbine hot aisle cooling air heat exchanger, a water-water or water-steam heat exchanger and a second heat exchanger shell; wherein the content of the first and second substances,
the cooling air heat exchanger of the hot channel of the gas turbine comprises a first heat exchanger shell, and a fan set, a compressed air heat exchanger and a natural gas heat exchanger which are sequentially connected in the first heat exchanger shell, wherein an air inlet and an air outlet are arranged on the first heat exchanger shell, the compressed air heat exchanger is provided with a compressed air inlet and a compressed air outlet, and the natural gas heat exchanger is provided with a natural gas inlet and a natural gas outlet;
a water-air heat exchanger disposed in the second heat exchanger shell, the water-air heat exchanger being provided with a water inlet and a water outlet and an air inlet and outlet;
the water-water or water-steam heat exchanger is provided with a first working medium inlet and a second working medium outlet.
A further development of the invention consists in that the air outlet of the first heat exchanger housing is connected to the air inlet of the second heat exchanger housing.
The utility model discloses a further improvement lies in, water-air heat exchanger's cold water entry is connected to the cold water source through a pipe-line system, and water-air heat exchanger's hot water export links to each other with water-water or water-steam heat exchanger's first working medium entry through No. two pipe-line systems.
The utility model discloses a further improvement lies in, water-water or water-steam heat exchanger's first working medium export links to each other with the hot user of heat supply through No. three pipe-line system.
The utility model discloses a further improvement lies in, water-water or water-steam heat exchanger's second working medium entry is connected to the heating heat source through second working medium entry pipe-line system.
The utility model discloses a further improvement lies in, and the heating heat source is hot water or steam.
The utility model discloses a further improvement lies in, hot water or steam come from exhaust-heat boiler system or steam turbine system.
The utility model discloses a further improvement lies in, water-water or water-steam heat exchanger's second working medium export is through second working medium export piping system connection working medium recovery unit.
The utility model discloses at least, following profitable technological effect has:
the utility model provides a gas turbine hot aisle cooling air heat exchanger exhaust waste heat utilization system, recoverable gas turbine hot aisle cooling air heat exchanger used heat; and the waste heat is used for heat supply, so that the consumption of primary energy is reduced, and considerable energy-saving benefit is achieved.
Drawings
FIG. 1 is a schematic diagram of a typical gas turbine hot path cooling air heat exchanger and design parameters.
FIG. 2 is a schematic diagram illustrating the structure of a heating system using waste heat of a gas turbine according to the present invention.
Description of reference numerals:
0 is a fan set, 1 is a compressed air heat exchanger, 2 is a natural gas heat exchanger, 3 is a first heat exchanger housing, 4 is a water-air heat exchanger, 5 is a second heat exchanger housing, 6 is a water-water or water-steam heat exchanger, 7 is a working medium recovery device, 8 is a heat consumer, 9 is a second working medium inlet pipeline system, 10 is a second working medium outlet pipeline system, 11 is a first pipeline system, 12 is a second pipeline system, and 13 is a third pipeline system.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and embodiments:
as shown in fig. 2, the present invention provides a gas turbine hot aisle cooling air heat exchanger exhaust waste heat utilization system, which comprises a gas turbine hot aisle cooling air heat exchanger, a water-air heat exchanger 4, a water-water or water-steam heat exchanger 6 and a second heat exchanger housing 5.
The gas turbine hot aisle cooling air heat exchanger comprises a fan group 0, a compressed air heat exchanger 1 and a natural gas heat exchanger 2 which are connected in sequence, and a first heat exchanger shell 3 which contains the above components.
The air is sucked by the fan set 0 and then enters the first heat exchanger housing 3, the air is converted into hot air through the heat convection of the compressed air heat exchanger 1, the hot air is further subjected to heat convection with the natural gas heat exchanger 2 to be cooled to form high-temperature exhaust gas, and the high-temperature exhaust gas flows into the second heat exchanger housing 5 and is subjected to heat convection with the water-air heat exchanger 4 to be cooled to be discharged to the atmosphere.
High-temperature air extracted from the gas compressor of the gas turbine flows through the air and returns to the gas turbine system after being subjected to heat convection and temperature reduction by the compressed air heat exchanger 1.
The cold natural gas flows through the natural gas heat exchanger 2 for heat convection and temperature rise and then enters the gas turbine system.
Cold water flows into the water-air heat exchanger 4 from the first pipeline system 11, enters the water-water or water-steam heat exchanger 6 from the second pipeline system 12 after being heated by convection heat exchange, and flows to the heat supply users 8 from the third pipeline system 13 after the water-water or water-steam heat exchanger 6 is further heated by convection heat exchange.
The second working medium (high-temperature hot water or steam) from the waste heat boiler system or the steam turbine system flows into the water-water or water-steam heat exchanger 6 from the second working medium inlet pipeline system 9, and flows into the working medium recovery device 7 from the second working medium outlet pipeline system 10 after heat exchange and temperature reduction.
The second working medium inlet pipeline system 9, the second working medium outlet pipeline system 10, the first pipeline system 11, the second pipeline system 12 and the third pipeline system 13 all comprise necessary valves and water pumps.
The flow of the second working medium can be adjusted by changing the opening of the valve in the second working medium inlet piping system 9, so that the outlet water temperature of the water-water or water-steam heat exchanger 6 can meet the temperature requirement of the heat user.
The hot water flow can be adjusted by changing the valve opening degree of the first pipeline system 11, the second pipeline system 12 and the third pipeline system 13, so that the requirement of a heat user on the hot water consumption is met.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A gas turbine hot aisle cooling air heat exchanger exhaust gas waste heat utilization system, characterized by comprising a gas turbine hot aisle cooling air heat exchanger, a water-air heat exchanger (4), a water-water or water-steam heat exchanger (6) and a second heat exchanger shell (5); wherein the content of the first and second substances,
the cooling air heat exchanger of the hot channel of the gas turbine comprises a first heat exchanger housing (3), a fan set (0), a compressed air heat exchanger (1) and a natural gas heat exchanger (2) which are sequentially connected in the first heat exchanger housing (3), wherein an air inlet and an air outlet are formed in the first heat exchanger housing (3), the compressed air heat exchanger (1) is provided with a compressed air inlet and a compressed air outlet, and the natural gas heat exchanger (2) is provided with a natural gas inlet and a natural gas outlet;
a water-air heat exchanger (4) is arranged in the second heat exchanger housing (5), the water-air heat exchanger (4) being provided with a water inlet and a water outlet and an air inlet and outlet;
the water-water or water-steam heat exchanger (6) is provided with a first working medium inlet and a second working medium outlet.
2. A gas turbine hot aisle cooling air heat exchanger exhaust gas waste heat utilization system as claimed in claim 1, characterised in that the air outlet of the first heat exchanger enclosure (3) is connected to the air inlet of the second heat exchanger enclosure (5).
3. The exhaust gas waste heat utilization system of the cooling air heat exchanger of the hot channel of the gas turbine as claimed in claim 1, characterized in that the cold water inlet of the water-air heat exchanger (4) is connected to a cold water source through a first pipe system (11), and the hot water outlet of the water-air heat exchanger (4) is connected to the first working medium inlet of the water-water or water-steam heat exchanger (6) through a second pipe system (12).
4. The exhaust gas waste heat utilization system of the cooling air heat exchanger of the hot channel of the gas turbine as claimed in claim 1, characterized in that the first working medium outlet of the water-water or water-steam heat exchanger (6) is connected to the heat consumer (8) of the heat supply via a third pipe system (13).
5. The gas turbine hot path cooling air heat exchanger exhaust gas waste heat utilization system of claim 1, characterized in that the second working fluid inlet of the water-water or water-steam heat exchanger (6) is connected to a heating heat source through a second working fluid inlet piping system (9).
6. The gas turbine hot path cooling air heat exchanger exhaust gas waste heat utilization system of claim 5, wherein the heating heat source is hot water or steam.
7. The gas turbine hot path cooling air heat exchanger exhaust gas waste heat utilization system of claim 6, wherein the hot water or steam is from a waste heat boiler system or a steam turbine system.
8. The exhaust gas waste heat utilization system of the cooling air heat exchanger of the hot channel of the gas turbine as claimed in claim 1, characterized in that the second working medium outlet of the water-water or water-steam heat exchanger (6) is connected to the working medium recovery device (7) via a second working medium outlet pipe system (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715825.5U CN213630639U (en) | 2020-11-21 | 2020-11-21 | Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715825.5U CN213630639U (en) | 2020-11-21 | 2020-11-21 | Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213630639U true CN213630639U (en) | 2021-07-06 |
Family
ID=76637246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022715825.5U Active CN213630639U (en) | 2020-11-21 | 2020-11-21 | Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213630639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325369A (en) * | 2020-11-21 | 2021-02-05 | 西安热工研究院有限公司 | Heating system using waste heat of gas turbine |
-
2020
- 2020-11-21 CN CN202022715825.5U patent/CN213630639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325369A (en) * | 2020-11-21 | 2021-02-05 | 西安热工研究院有限公司 | Heating system using waste heat of gas turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204730303U (en) | The heating system of the 12MW small cogeneration unit under a kind of underrun operating mode | |
| CN109826681B (en) | Industrial heating system for gas-steam combined cycle unit steam extraction integration and operation method thereof | |
| CN201764527U (en) | Thermal power plant boiler flue gas waste heat recovery and utilization system | |
| CN110332026B (en) | Steam extraction power generation heat supply system for coupling condensation back extraction heat supply and operation method | |
| CN102401393A (en) | Exhaust waste heat recycling system of power plant boiler | |
| CN111271702A (en) | Parallel steam extraction energy level lifting system of steam turbine | |
| CN213630639U (en) | Exhaust waste heat utilization system of cooling air heat exchanger of hot channel of gas turbine | |
| CN210483828U (en) | Energy-saving power generation and utilization system utilizing exhaust steam waste heat of steam turbine of thermal power plant | |
| CN213574372U (en) | Heat supply system comprehensively utilizing waste gas and waste heat of combined cycle unit | |
| CN213980964U (en) | Cold and heat quantity optimal utilization system between coal press of low-heat-value combined cycle unit | |
| CN212376702U (en) | Steam turbine bypass system heated by combustion engine gas | |
| CN214275887U (en) | Heating pipe section hot standby heating pipe system for steam extraction and heat supply | |
| CN212777568U (en) | Step heating system of 500MW and above air cooling unit | |
| CN211781370U (en) | Solar-assisted coal-fired cogeneration system based on absorption heat pump | |
| CN209840253U (en) | Heat pump system for power plant waste heat cold and hot coupling utilization | |
| CN208347882U (en) | A kind of SOFC fuel cell and internal combustion engine combustion gas distributed couplings system | |
| CN112325369A (en) | Heating system using waste heat of gas turbine | |
| CN109209536B (en) | Variable heat energy recovery system and method for cogeneration unit | |
| CN112302805A (en) | Heat supply system comprehensively utilizing waste gas and waste heat of combined cycle unit | |
| CN208620383U (en) | Residual heat of air compressor recycling equipment | |
| CN111396160A (en) | Flue gas waste heat cogeneration system and cogeneration method | |
| CN214247506U (en) | Device for increasing air inlet temperature of combustion engine by using closed cooling water | |
| CN214406013U (en) | Novel tail waste heat cascade comprehensive utilization system of H-level gas turbine waste heat boiler | |
| CN213713607U (en) | Combustion engine blowing compressed air heat utilization system | |
| CN215808420U (en) | Waste heat utilization device for heating condensed water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |