CN117108366A - Highly integrated totally-enclosed integrated power conversion device - Google Patents
Highly integrated totally-enclosed integrated power conversion device Download PDFInfo
- Publication number
- CN117108366A CN117108366A CN202310849903.6A CN202310849903A CN117108366A CN 117108366 A CN117108366 A CN 117108366A CN 202310849903 A CN202310849903 A CN 202310849903A CN 117108366 A CN117108366 A CN 117108366A
- Authority
- CN
- China
- Prior art keywords
- integrated
- power conversion
- inner shell
- conversion device
- heat exchanger
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 37
- 238000010248 power generation Methods 0.000 claims abstract description 6
- 239000011148 porous material Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- AFAUWLCCQOEICZ-UHFFFAOYSA-N helium xenon Chemical compound [He].[Xe] AFAUWLCCQOEICZ-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910000833 kovar Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- 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
- F01D15/08—Adaptations for driving, or combinations with, pumps
-
- 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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention belongs to the technical field of reactor power systems, and particularly relates to a highly integrated totally-enclosed integrated power conversion device. The device comprises a power conversion module and a heat exchanger module, wherein the power conversion module is arranged in the heat exchanger module. The power conversion module comprises a turbine, a compressed air power generation integrated machine, a main shaft and an integrated inner shell, wherein the turbine and the compressed air power generation integrated machine are coaxially connected through the main shaft and are arranged in the integrated inner shell, and the hollow cylindrical heat exchanger surrounds the outside of the integrated inner shell. The invention has the beneficial effects that: the high-integration fully-closed integrated power conversion device taking high-temperature and high-pressure gas as working medium has compact structure and high integration level, and realizes modularized installation; the hollow cylindrical heat exchanger is coated outside the power conversion module, so that pipelines among devices are greatly simplified, and space is saved.
Description
Technical Field
The invention belongs to the technical field of reactor power systems, and particularly relates to a highly integrated totally-enclosed integrated power conversion device.
Background
At present, a reactor power system generally adopts water vapor as a working medium, and has the defects of low efficiency, huge volume, single use, high investment cost and the like. The novel nuclear power device adopting Brayton cycle by using high-temperature high-pressure gas (such as helium xenon, nitrogen and the like) as working medium has the characteristics of high efficiency, wide application, high flexibility and the like, and is an important direction of nuclear energy development in the future. Wherein the power conversion device is one of the core devices of the reactor system.
In some applications, due to the small space and inconvenient field installation, the device is required to be small in size, modularized and high in integration degree. The common power conversion system equipment is distributed in a scattered way, the pipeline distribution is staggered and complex, the application scene is difficult to adapt, and an integrated power conversion device is needed.
Disclosure of Invention
The invention aims to provide a highly integrated totally-enclosed integrated power conversion device which has the advantages of small volume, high integration level, convenient modularized installation, totally-enclosed performance, zero leakage and the like and is used in a power system taking high-temperature high-pressure gas as a working medium.
The technical scheme of the invention is as follows: a highly integrated totally-enclosed integrated power conversion device comprises a power conversion module and a heat exchanger module, wherein the power conversion module is arranged in the heat exchanger module.
Preferably, the power conversion module comprises a turbine, a gas-compressing and power-generating integrated machine, a main shaft and an integrated inner shell, wherein the turbine and the gas-compressing and power-generating integrated machine are coaxially connected through the main shaft and are arranged in the integrated inner shell, and the hollow cylindrical heat exchanger surrounds the outside of the integrated inner shell.
Preferably, the turbine comprises a turbine impeller, a high-pressure labyrinth seal, a dry gas seal and a gas pumping and injecting pipe, wherein the turbine impeller, the high-pressure labyrinth seal and the dry gas seal are sequentially sleeved on the main shaft, the turbine impeller is positioned at the end part of the main shaft, the high-pressure labyrinth seal and the dry gas seal are tightly attached to the inner side of the integrated inner shell, and the gas pumping and injecting pipe is arranged on the integrated inner shell between the high-pressure labyrinth seal and the dry gas seal.
Preferably, the air compressing and power generating integrated machine comprises an overrunning clutch, an axial bearing, a radial bearing, an air compressing impeller rotor and a stator, wherein the overrunning clutch, the axial bearing, the radial bearing and the air compressing impeller rotor are sequentially sleeved on a main shaft, and the stator is positioned at the inner side end part of the integrated inner shell.
Preferably, the air compressing impeller rotor comprises an air compressing impeller, a permanent magnet group and a fixing structure, wherein the air compressing impeller is connected with the fixing structure, and a plurality of permanent magnet groups are arranged on the fixing structure.
Preferably, the side end of the integrated inner shell is provided with an electrical penetration piece.
Preferably, the heat exchanger module comprises a precooler and a heat regenerator, one side of the precooler is connected with the heat regenerator, a middle partition plate is arranged between the other side of the precooler and the heat regenerator, a side pore canal is arranged on the outer side of the middle partition plate, end covers are arranged at the two ends of the precooler and the heat regenerator, and the end covers are provided with precooler pore canals and heat regenerator pore canals.
Preferably, the precooler, the heat regenerator and the intermediate baffle are all enclosed within two pressure barriers of the integrated inner shell and heat exchanger outer shell.
The invention has the beneficial effects that: the high-integration fully-closed integrated power conversion device taking high-temperature and high-pressure gas as working medium has compact structure and high integration level, and realizes modularized installation; the hollow cylindrical heat exchanger is coated outside the power conversion module, so that pipelines among all devices are greatly simplified, and space is saved; the adopted air compression and power generation integrated machine combines the compressor and the power generator into a whole, simplifies the equipment quantity, and selects novel inorganic materials aiming at the corrosiveness possibly brought by the high-temperature and high-pressure environment; two totally-enclosed pressure barriers are formed through the integrated inner shell and the heat exchanger outer shell, so that zero leakage to the outside is realized.
Drawings
FIG. 1 is a schematic diagram of a highly integrated fully-closed integrated power conversion device according to the present invention;
FIG. 2 is a schematic diagram of a heat exchanger module;
FIG. 3 is a schematic diagram of a power conversion module.
In the figure: the device comprises a power conversion module 1, a heat exchanger module 2, a 3 end cover, a 4 precooler pore canal, a 5 heat regenerator pore canal, a 6 precooler, a 7 middle partition board, a 8 heat regenerator, a 9 side pore canal, a 11 turbine impeller, a 12 integrated inner shell, a 13 main shaft, a 14 high-pressure labyrinth seal, a 15 extraction and injection pipe, a 16 dry gas seal, a 17 overrun clutch, a 18 axial bearing, a 19 radial bearing, a 20 air compression impeller, a 21 fixed structure, a 22 permanent magnet group, a 23 stator and a 24 electric penetrating piece.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1, the highly integrated fully-closed integrated power conversion device provided by the invention comprises a power conversion module 1 and a heat exchanger module 2. The power conversion module 1 is installed in the heat exchanger module 2.
As shown in fig. 2, the heat exchanger module 2 is a micro-channel printed circuit board type heat exchanger with a hollow cylindrical structure, and has the advantages of compact structure, safety and reliability. The device comprises a precooler 6 and a heat regenerator 8, wherein one side of the precooler 6 is connected with the heat regenerator 8, a middle partition plate 7 is arranged between the other side of the precooler 6 and the heat regenerator 8, side pore canals 9 are formed in the outer side of the middle partition plate 7, end covers 3 are mounted at two ends of the precooler 6 and the heat regenerator 8, and two precooler pore canals 4 and two heat regenerator pore canals 5 are formed in the end covers 3. The two precooler channels 4 are respectively communicated with the inlet and the outlet of the precooler 6, and the heat regenerator channel 5 is respectively communicated with the inlet and the outlet of the heat regenerator 8. The precooler 6, the regenerator 8 and the intermediate baffle 7 are all enclosed within two pressure barriers, an inner shell 12 and an outer shell of the heat exchanger.
As shown in fig. 3, the power conversion module 2 includes a turbine, a compressor-generator integrated machine, a main shaft 13, and an integrated inner casing 12. The turbine and the air compression power generation integrated machine are coaxially connected through a main shaft 13 and are arranged in the integrated inner shell 12, and the hollow cylindrical heat exchanger surrounds the outside of the integrated inner shell 12.
The turbine comprises a turbine impeller 11, a high-pressure labyrinth seal 14, a dry gas seal 16 and an air pumping and injecting pipe 15, wherein the turbine impeller 11, the high-pressure labyrinth seal 14 and the dry gas seal 16 are sequentially sleeved on a main shaft 13, the turbine impeller 11 is positioned at the end part of the main shaft 13, the high-pressure labyrinth seal 14 and the dry gas seal 16 are tightly attached to the inner side of the integrated inner shell 12, and the air pumping and injecting pipe 15 is arranged on the integrated inner shell 12 between the high-pressure labyrinth seal 14 and the dry gas seal 16.
The air compressing and power generating integrated machine comprises an overspeed clutch 17, an axial bearing 18, a radial bearing 19, an air compressing impeller rotor and a stator 23. The overspeed clutch 17, the axial bearing 18, the radial bearing 19 and the rotor of the air compressing impeller are sequentially sleeved on the main shaft 13. The stator 23 is located at the inside end of the integrated inner housing 12. The impeller rotor comprises an impeller 20, a permanent magnet set 22 and a fixed structure 21. The air compressing impeller 20 is connected with a fixed structure 21, and a plurality of permanent magnet groups 22 are arranged on the fixed structure 21. The rotor permanent magnet group 22 is fixed by using a carbon fiber material, and organic materials such as insulating rubber and resin are replaced by a novel inorganic material such as glass fiber, so that corrosion is prevented. The side end of the integrated inner shell 12 is provided with an electric penetrating piece 24, and the electric penetrating piece 24 adopts a novel glass-metal sealing structure composed of kovar alloy and borosilicate glass.
When the air compressing and power generating integrated machine is started, the air compressing and power generating integrated machine is used as a prime motor to drive the compression blades to rotate; in normal operation, the generator is operated to generate electric energy.
The working process of the invention is as follows:
when the compressor is started, the air compressing and power generating integrated machine is used as a prime motor to drive the compression blades to rotate; during normal operation, the turbine is used as a prime motor to drive the air compressing and power generating integrated machine to work. The side of the hollow cylindrical heat exchanger is provided with a pore canal, so that each part in the integrated inner shell is convenient to be connected with other external system equipment. The integrated inner shell and the heat exchanger outer shell form two pressure barriers of the device, so that the device is totally closed, and zero leakage is ensured.
Claims (8)
1. A highly integrated totally-enclosed integrated power conversion device is characterized in that: the device comprises a power conversion module and a heat exchanger module, wherein the power conversion module is arranged in the heat exchanger module.
2. A highly integrated totally enclosed integrated power conversion device as claimed in claim 1 wherein: the power conversion module comprises a turbine, a compressed air power generation integrated machine, a main shaft and an integrated inner shell, wherein the turbine and the compressed air power generation integrated machine are coaxially connected through the main shaft and are arranged in the integrated inner shell, and the hollow cylindrical heat exchanger surrounds the outside of the integrated inner shell.
3. A highly integrated totally enclosed integrated power conversion device as claimed in claim 2 wherein: the turbine comprises a turbine impeller, a high-pressure labyrinth seal, a dry gas seal and a gas pumping and injecting pipe, wherein the turbine impeller, the high-pressure labyrinth seal and the dry gas seal are sequentially sleeved on a main shaft, the turbine impeller is positioned at the end part of the main shaft, the high-pressure labyrinth seal and the dry gas seal are tightly attached to the inner side of the integrated inner shell, and the gas pumping and injecting pipe is arranged on the integrated inner shell between the high-pressure labyrinth seal and the dry gas seal.
4. A highly integrated totally enclosed integrated power conversion device as claimed in claim 2 wherein: the air compressing and power generating integrated machine comprises an overspeed clutch, an axial bearing, a radial bearing, an air compressing impeller rotor and a stator, wherein the overspeed clutch, the axial bearing, the radial bearing and the air compressing impeller rotor are sequentially sleeved on a main shaft, and the stator is positioned at the inner side end part of the integrated inner shell.
5. The highly integrated totally-enclosed integrated power conversion device according to claim 4, wherein: the air compressing impeller rotor comprises an air compressing impeller, permanent magnet groups and a fixing structure, wherein the air compressing impeller is connected with the fixing structure, and a plurality of permanent magnet groups are arranged on the fixing structure.
6. The highly integrated totally-enclosed integrated power conversion device according to claim 4, wherein: the side end of the integrated inner shell is provided with an electric penetrating piece.
7. A highly integrated totally enclosed integrated power conversion device as claimed in claim 1 wherein: the heat exchanger module comprises a precooler and a heat regenerator, one side of the precooler is connected with the heat regenerator, an intermediate baffle is arranged between the other side of the precooler and the heat regenerator, a side pore canal is arranged on the outer side of the intermediate baffle, end covers are arranged at the two ends of the precooler and the heat regenerator, and the end covers are provided with precooler pore canals and heat regenerator pore canals.
8. The highly integrated totally enclosed integrated power conversion device according to claim 7 wherein: the precooler, the heat regenerator and the middle partition plate are all enclosed in two pressure barriers of the integrated inner shell and the heat exchanger outer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310849903.6A CN117108366A (en) | 2023-07-12 | 2023-07-12 | Highly integrated totally-enclosed integrated power conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310849903.6A CN117108366A (en) | 2023-07-12 | 2023-07-12 | Highly integrated totally-enclosed integrated power conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117108366A true CN117108366A (en) | 2023-11-24 |
Family
ID=88808143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310849903.6A Pending CN117108366A (en) | 2023-07-12 | 2023-07-12 | Highly integrated totally-enclosed integrated power conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117108366A (en) |
-
2023
- 2023-07-12 CN CN202310849903.6A patent/CN117108366A/en active Pending
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