CN201047310Y - Heat recovery device - Google Patents
Heat recovery device Download PDFInfo
- Publication number
- CN201047310Y CN201047310Y CNU200720063332XU CN200720063332U CN201047310Y CN 201047310 Y CN201047310 Y CN 201047310Y CN U200720063332X U CNU200720063332X U CN U200720063332XU CN 200720063332 U CN200720063332 U CN 200720063332U CN 201047310 Y CN201047310 Y CN 201047310Y
- Authority
- CN
- China
- Prior art keywords
- gas turbine
- heat
- regenerator
- absorption
- waste 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.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model relates to an exhaust waste heat recovery device of a minitype gas turbine, comprising a gas turbine, a heat regenerator and an absorption-type waste heat recovery system which is internally provided with an evaporator, a generator and an absorption-type waste heat recovery device that is provided with a cooling and heating transfer switch. The utility model has the advantages of high recovery and utilization ratio of waste heat, simple structure, easy installation, low maintaining cost, needing no water and being especially suitable for water deficient area, arid area, desert, etc. Owning to the pre-cooling of the inlet air of the gas turbine, the utility model increases the air flow, lowers the temperature of the combustion chamber, reduces the exhaust of NO <x>, which is beneficial to environmental protection and prolongs the service life of high temperature parts.
Description
Technical field
The utility model relates to a kind of waste heat recovering device, is specifically related to a kind of small size gas turbine exhaust heat recovering device.
Background technique
Along with rising steadily of disposable energy prices, pursue the best preparation of the energy and the reasonable utilization of the energy, be one of important measures of reducing cost of energy saving.The small size gas turbine compact structure; moving element is few; in light weight; maintenance cost is low, and start and stop is convenient, and pluralities of fuel can burn; be widely used in the small-sized cold cogeneration system; but the single-cycle thermal efficiency of small size gas turbine is less than 20%, and a large amount of heat energy enters atmosphere and is wasted, and the thermal efficiency is low.Traditional method is in the combustion turbine exhaustion outlet exhaust heat boiler to be installed, reclaim the combustion turbine exhaustion waste heat, produce steam and drive steam turbine generator generating or heat supply, realize cogeneration of heat and power, improved the utilization ratio of heat energy, but exhaust heat boiler steam turbine generator device volume is huge, also need to be equipped with water-treating equipment and feed water pump, the user cost height, at the small size gas turbine exhaust outlet regenerator is installed, the compressed-air actuated temperature that enters the firing chamber is raise, reclaim the high-temperature residual heat energy of gas turbine outlet, reduced oil consumption, thermal efficiency of cycle can reach 30%.Even but pressure ratio is 3 small size gas turbine, the gas compressor delivery temperature also will be higher than 100 ℃, also just say and adopt desirable contraflow regenerator, regenerator combustion gas limit outlet delivery temperature also will be higher than 100 ℃, the ability of regenerator recovery exhaust heat is subjected to the restriction of gas compressor delivery temperature, still has appreciable waste heat energy to can not get reclaiming and utilizing.Especially in summer of sweltering heat, compressor inlet temperature height, corresponding gas compressor delivery temperature also improves, and makes the decrease in efficiency of small size gas turbine, and reducing the compressor inlet temperature is the important channel of improving the efficient of small size gas turbine, adopt the machinery cooling, want consumed power, and the gas compressor delivery temperature improves, cause the heat recovery rate of regenerator to descend again, there is more considerable exhaust heat can not get effective utilization, is wasted.
Summary of the invention
The purpose of this utility model is in order to overcome the shortcoming of prior art, to provide a kind of simple in structure, heat recovery efficient height, the small size gas turbine exhaust heat recovering device that user cost is low.
Waste heat recovering device of the present utility model includes gas turbine, regenerator, absorption residual neat recovering system composition, described absorption residual neat recovering system is made up of vaporizer, generator and absorption waste-heat recoverer, vaporizer is arranged on gas turbine inlet and connects with bolt, and the gas turbine outlet is connected with regenerator, generator in turn; Regenerator is connected by tracheae with gas compressor, firing chamber, is connected by solution conduit between vaporizer, absorption waste-heat recoverer and the generator, and regenerator, absorption waste-heat recoverer, vaporizer, generator and gas turbine are formed closed waste heat recovering device; Described absorption waste-heat recoverer is provided with the throw over switch that heats, freezes.
The principle of waste heat recovering device of the present utility model is: the pressurized air that high-temperature flue gas that gas turbine is discharged and gas compressor are discharged at first enters regenerator, the air-flow of two kinds of different temperatures carries out heat exchange in regenerator, flue-gas temperature reduces, the compressed air temperature that enters the firing chamber is raise, reduced fuel consumption, regenerator has reclaimed the high-temperature residual heat that gas turbine is discharged.Low-temperature flue gas by behind the regenerator enters generator, and generator is passed to absorption waste-heat recoverer with the waste heat energy of low-temperature flue gas, by throw over switch, realizes the conversion of heat supply, cooling.
The advantage of small size gas turbine exhaust heat recovering device of the present utility model is: heat recovery rate height, and simple in structure, to install easily, the working service cost is low, does not need water, is particularly suitable for water-deficient areas such as arid, desert and uses.When being used for the gas turbine inlet air precooling, the gas turbine inlet air temperature can reduce by 10 ℃-25 ℃, and the combustion turbine exhaustion flow can improve 2%-4%, and the gas turbine output work can improve 20%-30%, perhaps when identical output work, can reduce the fuel consumption of 5%-10%; Because the gas turbine inlet air precooling has increased air mass flow, has reduced the temperature of firing chamber, has reduced NO
xThe discharging of thing helps environmental protection, has prolonged the working life of high-temperature component.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of absorption waste-heat recoverer
1. air-conditioning switchs among the figure, 2. solution conduit, 3. cooling conditioner, 4. absorption waste-heat recoverer, 5. cooling/heating air conditioner, 6. vaporizer, 7. gas compressor, 8. firing chamber, 9. turbine, 10. tracheae, 11. regenerators, 12. generators, 13. connectors, 14. throw over switches, 15. heating units, 16. refrigeration units, 17. gas turbines.
The specific embodiment mode
Be further described below in conjunction with accompanying drawing
As shown in Figure 1 and Figure 2, the utility model comprises gas turbine 17, regenerator 11, absorption residual neat recovering system, and described absorption residual neat recovering system includes vaporizer 6, generator 12 and absorption waste-heat recoverer 4.Absorption waste-heat recoverer 4, generator 12 and vaporizer 6 are connected by solution conduit 2, regenerator 11 is connected by tracheae 10 with gas compressor 7, firing chamber 8, vaporizer 6 is arranged on gas turbine 17 imports and connects with bolt, gas turbine 17 outlets are connected with regenerator 11, generator 12 in turn, form a closed waste heat recovering device.The flue gas that gas turbine 17 is discharged directly enters regenerator 11, pressurized air is crossed regenerator 11 by tracheae 10 reverse flows, enter firing chamber 8 by tracheae 10 again, the air-flow of two kinds of different temperatures carries out heat exchange in regenerator 11, flue-gas temperature reduces, and the compressed air temperature that enters firing chamber 8 is raise, and regenerator 11 has reclaimed the high-temperature residual heat that gas turbine 17 is discharged, the low-temperature flue gas of being discharged by regenerator 11, enter generator 12, generator 12 is passed to absorption waste-heat recoverer 4 with low temperature exhaust heat.Absorption waste-heat recoverer 4 is provided with the throw over switch 14 that heats, freezes, heating unit 15 and refrigeration unit 16, and two ends are connected with solution conduit 2 by connector 13.
When the throw over switch 14 in the absorption waste-heat recoverer 4 is transformed into refrigeration unit 16, absorption waste-heat recoverer 4 is to vaporizer 6 coolings, and by precooling, the air temperature that enters gas compressor 7 reduces atmosphere by vaporizer 6, increase air mass flow simultaneously, improved the efficient of gas compressor 7.At hot weather, for improving working environment,, can realize that vaporizer 6 and cooling conditioner 3 work simultaneously as long as switch 1 is opened, the height of work cell temperature is regulated control by switch 1.
In the winter of cold, atmospheric temperature is lower, the atmosphere that enters gas compressor 8 does not need to cool, and indoor the needs heats up, as long as throw over switch 14 is transformed into heating unit 15, generator 12 can be passed to absorption waste-heat recoverer 4 with low temperature exhaust heat, and absorption waste-heat recoverer 4 is to cooling/heating air conditioner 5 heat supplies.
Claims (2)
1. waste heat recovering device, include gas turbine (17), regenerator (11), absorption residual neat recovering system composition, it is characterized in that: described absorption residual neat recovering system is made up of vaporizer (6), generator (12) and absorption waste-heat recoverer (4); Vaporizer (6) is arranged on gas turbine (17) import and is solidly connected, and gas turbine (17) outlet is connected with regenerator (11), generator (12) successively; Regenerator (11) is connected by tracheae (10) with gas compressor (7), firing chamber (8), and vaporizer (6), absorption waste-heat recoverer (4) and generator (12) are connected by solution conduit (2).
2. waste heat recovering device according to claim 1 is characterized in that: described absorption waste-heat recoverer (4) is provided with the throw over switch (14) that heats, freezes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720063332XU CN201047310Y (en) | 2007-05-25 | 2007-05-25 | Heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720063332XU CN201047310Y (en) | 2007-05-25 | 2007-05-25 | Heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047310Y true CN201047310Y (en) | 2008-04-16 |
Family
ID=39299891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720063332XU Expired - Lifetime CN201047310Y (en) | 2007-05-25 | 2007-05-25 | Heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047310Y (en) |
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2007
- 2007-05-25 CN CNU200720063332XU patent/CN201047310Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080416 |
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| CX01 | Expiry of patent term |