CN111120024A - Organic working medium power generation device for cooling generator by using interstage gas - Google Patents
Organic working medium power generation device for cooling generator by using interstage gasDownload PDFInfo
- Publication number
- CN111120024A CN111120024ACN201911335700.5ACN201911335700ACN111120024ACN 111120024 ACN111120024 ACN 111120024ACN 201911335700 ACN201911335700 ACN 201911335700ACN 111120024 ACN111120024 ACN 111120024A
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- China
- Prior art keywords
- generator
- working medium
- organic working
- power generation
- generation device
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- 238000010248power generationMethods0.000titleclaimsabstractdescription21
- 238000001816coolingMethods0.000titleclaimsabstractdescription16
- 238000007789sealingMethods0.000claimsdescription5
- 244000126211Hericium coralloidesSpecies0.000claimsdescription3
- 230000009286beneficial effectEffects0.000abstractdescription3
- 230000002349favourable effectEffects0.000abstractdescription3
- 238000004519manufacturing processMethods0.000abstractdescription2
- 230000005540biological transmissionEffects0.000abstract1
- 239000007789gasSubstances0.000description17
- 239000002826coolantSubstances0.000description2
- 125000004122cyclic groupChemical group0.000description2
- 239000002918waste heatSubstances0.000description2
- 230000007547defectEffects0.000description1
- 238000010586diagramMethods0.000description1
- 230000005611electricityEffects0.000description1
- 238000000605extractionMethods0.000description1
- 230000017525heat dissipationEffects0.000description1
- 238000010438heat treatmentMethods0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 238000003303reheatingMethods0.000description1
- 239000002356single layerSubstances0.000description1
Images
Classifications
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Technical Field
The invention relates to the technical field of low-temperature waste heat power generation, in particular to an organic working medium power generation device for cooling a power generator by using interstage gas.
Background
In the field of low-temperature waste heat power generation, organic working media are mostly adopted to replace the traditional steam driven turbine to do work and generate power so as to realize more efficient energy gradient utilization.
In the design of the organic working medium turboexpander, a turbine and a generator share one rotor, and the turbine and the generator are in a single-layer cylinder design structure. Under the configuration of the basic structure, the intermediate organic working medium gas expanded in the first stages is introduced into the generator to cool the generator, so that the heat dissipation problem of the generator is solved. In addition, the turbine adopts an axial-flow multistage arrangement structure, the unidirectional thrust on the right side of the turbine is large, the problem of thrust balance can be solved just by the air entraining mode, and the problem of difficult design of a thrust bearing in the small-sized organic working medium turbine is solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an organic working medium power generation device for cooling a power generator by using interstage gas, wherein the organic working medium gas can circulate in the power generator to cool the power generator.
The invention is realized by the following technical scheme: the organic working medium power generation device comprises a turbine cylinder and a generator, wherein a turbine rotor of the turbine cylinder and a generator rotor of the generator are of the same rotor design structure, the turbine cylinder is hermetically connected with a generator shell of the generator, and an air inlet chamber of the turbine cylinder is communicated with the generator from the outside through an exhaust pipe.
Further, in order to better realize the invention, a comb tooth sealing structure is arranged between the turbine rotor and the turbine cylinder.
Further, in order to better realize the invention, an A bearing is arranged between the generator rotor and the generator shell.
Furthermore, in order to better realize the invention, a thrust bearing sleeved on a generator rotor is arranged between the A bearing and the generator.
Further, in order to better realize the invention, the turbine cylinder and the generator shell adopt vertical flanges and are connected through bolts.
Further, in order to better realize the invention, a B bearing matched with the turbine cylinder is arranged at one end, away from the generator, of the turbine rotor.
The beneficial effect that this scheme obtained is:
this scheme can introduce the generator with the organic working medium gas after doing work in the turbo cylinder to utilize organic working medium gas to cool down the processing to the generator, improve the gaseous utilization ratio of organic working medium, and need not use extra coolant and cooling structure, be favorable to simplifying the structure of equipment, reduce the space size that equipment occupied, reduction in production cost and use cost.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
the system comprises a turbine cylinder 1, a generator shell 2, a generator rotor 3, a thrust bearing 4, a bearing 5-A, a bearing 6-B, a generator 7, a comb tooth sealing structure 8, an exhaust pipe 9, an end baffle 10 and aturbine rotor 11.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1:
in the embodiment, as shown in fig. 1, the organic working medium power generation device for cooling the generator by using the interstage gas comprises a turbine cylinder 1 and a generator 7, aturbine rotor 11 of the turbine cylinder 1 and a generator rotor 3 of the generator 7 are of the same rotor design structure, the turbine cylinder 1 is hermetically connected with a generator shell 2 of the generator 7, and an air inlet chamber of the turbine cylinder 1 is communicated with the generator 7 from the outside through an air extraction pipe 9.
When the generator is used, the organic working medium gas enters the air inlet cavity of the turbine cylinder 1 and acts in the turbine cylinder 1 to drive theturbine rotor 11 to rotate, and theturbine rotor 11 drives the generator rotor 3 to rotate so as to enable the generator 7 to generate electricity. The air inlet temperature range of the turbine cylinder 1 is between 0 ℃ and 100 ℃, the temperature of the organic working medium is reduced to 0-50 ℃ after the organic working medium is expanded by the turbines of the previous stages, and the pressure is reduced to 0-1 MPa.
The organic working medium gas after acting is introduced into the generator 7 by utilizing the exhaust tube 9, so that the temperature of the generator 7 can be reduced, the utilization rate of the organic working medium gas can be improved, an extra cooling structure does not need to be designed, extra cooling medium does not need to be used, the cost can be effectively reduced, the overall structure of the generator 7 is simplified, and the occupied space is reduced. The air exhaust pipe 9 is arranged outside, so that the heat of the organic working medium gas is favorably dissipated, the temperature of the generator is reduced, and the efficiency of reducing the temperature of the generator 7 is favorably improved. The generator shell 2 can be communicated with a pipeline to convey the organic working medium gas after heat exchange to a heating device for reheating, so that the reheated organic working medium gas enters the turbine cylinder 1 to do work again to realize cyclic utilization, the organic working medium gas is prevented from being leaked, and the cyclic utilization rate is improved.
The parameters of the shaft seal at the end part of theturbine rotor 11 can be reduced by introducing the organic working medium gas after acting into the generator 7 through the exhaust pipe 9, and the thrust of theturbine rotor 11 close to one end of the generator rotor 3 can be reduced, so that the thrust borne by the generator rotor 3 is reduced.
Example 2:
on the basis of the above embodiment, in the present embodiment, the comb seal structure 8 is provided between theturbine rotor 11 and the turbine cylinder 1. Utilize broach seal structure 8 to be favorable to isolated turbine cylinder 1 and generator 7, avoid organic working medium gas not through exhaust tube 9 and directly circulate between turbine cylinder 1 and generator 7, prevent that extravagant and generator 7 cooling from receiving the influence.
Example 3:
in addition to the above embodiments, in the present embodiment, the a bearing 5 is disposed between the generator rotor 3 and the generator housing 2. The a-bearing 5 is arranged at the end of the generator rotor 3 remote from the turbine cylinder 1. The generator 7 is arranged at the end of the generator rotor 3 close to the turbine cylinder 1. The utilization rate of the kinetic energy of the generator rotor 3 is improved, the influence of the vibration of the generator rotor 3 on power generation is reduced, and the stability of the generator rotor 3 can be improved by the aid of the A bearing 5.
In this embodiment, a thrust bearing 4 sleeved on the generator rotor 3 is arranged between the bearing a 5 and the generator 7. The thrust bearing 4 is beneficial to balancing the thrust borne by the generator rotor 3 and keeping the generator rotor 3 stable.
In this embodiment, the turbine cylinder 1 and the generator housing 2 are connected by a vertical flange and a bolt. This is advantageous for improving the strength of the connection between the turbine cylinder 1 and the generator housing 2, and a sealing structure can be provided between the flanges to improve the sealing performance.
In this embodiment, a B bearing 6 used in cooperation with the turbine cylinder 1 is disposed on one end of theturbine rotor 11 away from the generator 7. This contributes to an increased stability of theturbine rotor 11.
In this embodiment, other undescribed contents are the same as those in the above embodiment, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. An organic working medium power generation device for cooling a generator by using interstage gas is characterized in that: the turbine generator comprises a turbine cylinder (1) and a generator (7), wherein a turbine rotor (11) of the turbine cylinder (1) and a generator rotor (3) of the generator (7) are of the same rotor design structure, the turbine cylinder (1) is hermetically connected with a generator shell (2) of the generator (7), and an air inlet cavity of the turbine cylinder (1) is communicated with the generator (7) from the outside through an air exhaust pipe (9).
2. The organic working medium power generation device for cooling the generator by using the interstage gas as claimed in claim 1, wherein the organic working medium power generation device comprises: and a comb tooth sealing structure (8) is arranged between the turbine rotor (11) and the turbine cylinder (1).
3. The organic working medium power generation device for cooling the generator by using the interstage gas as claimed in claim 1, wherein the organic working medium power generation device comprises: a bearing (5) is arranged between the generator rotor (3) and the generator shell (2).
4. The organic working medium power generation device for cooling the generator by using the interstage gas as claimed in claim 3, wherein the organic working medium power generation device comprises: a thrust bearing (4) sleeved on the generator rotor (3) is arranged between the bearing A (5) and the generator (7).
5. The organic working medium power generation device for cooling the generator by using the interstage gas as claimed in claim 1, wherein the organic working medium power generation device comprises: the turbine cylinder (1) and the generator shell (2) are connected through a vertical flange and a bolt.
6. The organic working medium power generation device for cooling the generator by using the interstage gas as claimed in claim 1, wherein the organic working medium power generation device comprises: and a B bearing (6) matched with the turbine cylinder (1) for use is arranged at one end of the turbine rotor (11) far away from the generator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335700.5ACN111120024A (en) | 2019-12-23 | 2019-12-23 | Organic working medium power generation device for cooling generator by using interstage gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335700.5ACN111120024A (en) | 2019-12-23 | 2019-12-23 | Organic working medium power generation device for cooling generator by using interstage gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120024Atrue CN111120024A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911335700.5APendingCN111120024A (en) | 2019-12-23 | 2019-12-23 | Organic working medium power generation device for cooling generator by using interstage gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278384A (en)* | 2021-12-15 | 2022-04-05 | 东方电气集团东方汽轮机有限公司 | Adjustable steam extraction type steam turbine axial thrust balancing structure and method |
| CN115450719A (en)* | 2022-10-24 | 2022-12-09 | 烟台龙源电力技术股份有限公司 | Low-temperature power generation system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5709103A (en)* | 1996-08-15 | 1998-01-20 | Mcdonnell Douglas Coporation | Electrically powered differential air-cycle air conditioning machine |
| DE69527283D1 (en)* | 1994-03-21 | 2002-08-08 | Capstone Turbine Corp | GASTURBINENGENERATORSET |
| CN107620611A (en)* | 2016-07-15 | 2018-01-23 | 西门子公司 | Integral type electricity generation system and electricity-generating method |
- 2019
- 2019-12-23CNCN201911335700.5Apatent/CN111120024A/enactivePending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69527283D1 (en)* | 1994-03-21 | 2002-08-08 | Capstone Turbine Corp | GASTURBINENGENERATORSET |
| US5709103A (en)* | 1996-08-15 | 1998-01-20 | Mcdonnell Douglas Coporation | Electrically powered differential air-cycle air conditioning machine |
| CN107620611A (en)* | 2016-07-15 | 2018-01-23 | 西门子公司 | Integral type electricity generation system and electricity-generating method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278384A (en)* | 2021-12-15 | 2022-04-05 | 东方电气集团东方汽轮机有限公司 | Adjustable steam extraction type steam turbine axial thrust balancing structure and method |
| CN114278384B (en)* | 2021-12-15 | 2023-08-01 | 东方电气集团东方汽轮机有限公司 | Axial thrust balancing structure and method for adjustable extraction steam turbine |
| CN115450719A (en)* | 2022-10-24 | 2022-12-09 | 烟台龙源电力技术股份有限公司 | Low-temperature power generation system |
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