CN210068500U - Superconducting nuclear main pump structure suitable for nuclear power station first-stage circulating main pump - Google Patents
Superconducting nuclear main pump structure suitable for nuclear power station first-stage circulating main pump Download PDFInfo
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- CN210068500U CN210068500U CN201920990154.8U CN201920990154U CN210068500U CN 210068500 U CN210068500 U CN 210068500U CN 201920990154 U CN201920990154 U CN 201920990154U CN 210068500 U CN210068500 U CN 210068500U
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- magnet motor
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Abstract
The utility model discloses a superconducting nuclear main pump structure suitable for a nuclear power station primary circulation main pump, which comprises a blade main shaft, a circulation water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor; a plurality of blades are arranged on the blade main shaft; a plurality of permanent magnet motor rotors are respectively attached to the two ends of the top and the bottom of the blade main shaft, and a rectangular permanent magnet array is fixedly installed on the bottom surface of the blade main shaft; a superconducting block array matched with the permanent magnet array is arranged under the permanent magnet array; the blade main shaft is arranged in the circulating water pipeline, and the permanent magnet motor stator is fixed on the outer side of the circulating water pipeline; and a vacuum cavity is formed in a gap between the permanent magnet motor stator and the permanent magnet motor rotor.
Description
Technical Field
The utility model belongs to the technical field of nuclear power one-level pump, concretely relates to superconductive nuclear main pump structure suitable for nuclear power station one-level circulation main pump.
Background
The nuclear power station is an effective way for peacefully using nuclear energy to generate electricity by using the nuclear energy. The nuclear power station can not discharge a large amount of pollutants to the environment, the nuclear fuel consumption is less, and the operation cost is low. However, nuclear power plants produce high-level and low-level radioactive wastes, and once nuclear leakage occurs during operation, the nuclear power plants can cause damage to the environment and the surrounding environment. Especially, the main coolant pump of the primary loop system of the nuclear power station leaks the condensing agent directly with radiation due to the failure of the dynamic seal and the static seal.
In the traditional main coolant pump, a first generation main pump and a second generation main pump adopt mechanical seal, lubrication and cooling exist, a third generation main pump and a fourth generation main pump adopt static seal, but the sealing performance of the main pumps is reduced due to the fact that cable penetrating pieces and wet windings are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the above-mentioned among the prior art not enough, provide a superconductive nuclear main pump structure suitable for nuclear power station one-level circulation main pump to there is the problem of leakage in solving current one-level circulation main pump.
In order to achieve the purpose, the utility model adopts the technical proposal that:
a superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power station comprises a blade main shaft, a circulating water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor;
a plurality of blades are arranged on the blade main shaft; a plurality of permanent magnet motor rotors are respectively attached to the two ends of the top and the bottom of the blade main shaft, and a rectangular permanent magnet array is fixedly installed on the bottom surface of the blade main shaft; a superconducting block array matched with the permanent magnet array is arranged under the permanent magnet array; the blade main shaft is arranged in the circulating water pipeline, and the permanent magnet motor stator is fixed on the outer side of the circulating water pipeline; and a vacuum cavity is formed in a gap between the permanent magnet motor stator and the permanent magnet motor rotor.
Preferably, the bottom surface of the blade main shaft is pasted and fixed with the permanent magnet array through glue.
Preferably, the vacuum cavity is of a double-layer structure, and a high-strength heat insulation material is adopted in the vacuum cavity.
Preferably, the high strength thermal insulation material is G10 epoxy.
Preferably, the array of permanent magnets is N52 NdFeB magnets.
The utility model provides a superconductive nuclear main pump structure suitable for nuclear power station one-level circulation main pump has following beneficial effect:
the utility model discloses a non-contact magnetic suspension magnetic drive pump for the circulation of return circuit condensing agent utilizes the magnetic suspension motor to drive the blade, and all movable parts of pump inside are whole to be in the suspension state, do not have dynamic seal and static seal, need not maintain, do not have the leakage risk.
Drawings
Fig. 1 is a structural diagram of a superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power plant before cooling.
Fig. 2 is a structural diagram of a superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power plant after cooling.
Fig. 3 is a structural diagram of a vacuum cavity of a superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power plant.
FIG. 4 is a permanent magnet array.
Fig. 5 is a superconducting bulk array.
Wherein, 1, a blade main shaft; 2. a blade; 3. a permanent magnet motor stator; 4. a circulating water pipeline; 5. a permanent magnet array; 6. a permanent magnet motor rotor; 7. an array of superconducting blocks; 8. a support member; 9. a vacuum chamber.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.
According to one embodiment of the application, referring to fig. 1-3, the superconducting nuclear main pump structure suitable for the primary circulation main pump of the nuclear power plant comprises a blade main shaft, a circulation water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor.
The blade main shaft is arranged in the circulating water pipeline, a plurality of blades are fixedly installed on the blade main shaft, and a plurality of permanent magnet motor rotors are attached to the two ends of the top and the bottom of the blade main shaft.
Referring to fig. 4, a rectangular permanent magnet array is fixedly installed on the bottom surface of the blade spindle, the rectangular permanent magnet array is adhered to the bottom surface of the blade spindle by glue, and the permanent magnet array is an N52 neodymium iron boron magnet.
Referring to fig. 5, a superconducting block array is disposed just below the permanent magnet array, the superconducting block array cooperates with the permanent magnet array to generate a suspension force to suspend the blade to a specific working position, and the permanent magnet motor stator is outside the vacuum chamber to drive the permanent magnet motor rotor and drive the blade to rotate.
The permanent magnet motor stator is fixed on the outer side of the circulating water pipeline, a vacuum cavity is arranged in a gap between the permanent magnet motor stator and the permanent magnet motor rotor, the vacuum cavity is of a double-layer structure, and high-strength heat insulation materials are adopted in the vacuum cavity; the vacuum cavity has the function of reducing heat conduction and reducing the influence of temperature on the permanent magnet as much as possible.
The high strength insulation material is G10 epoxy.
The utility model discloses a non-contact magnetic suspension magnetic drive pump for the circulation of return circuit condensing agent utilizes the magnetic suspension motor to drive the blade, and all movable parts of pump inside are whole to be in the suspension state, do not have dynamic seal and static seal, need not maintain, do not have the leakage risk.
While the present invention has been described in detail with reference to the embodiments, the scope of the present invention should not be limited to the embodiments. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (5)
1. The utility model provides a superconductive nuclear main pump structure suitable for nuclear power station one-level circulation main pump which characterized in that: the permanent magnet motor comprises a blade main shaft, a circulating water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor;
a plurality of blades are arranged on the blade main shaft; a plurality of permanent magnet motor rotors are respectively attached to the two ends of the top and the bottom of the blade main shaft, and a rectangular permanent magnet array is fixedly installed on the bottom surface of the blade main shaft; a superconducting block array matched with the permanent magnet array is arranged under the permanent magnet array; the blade main shaft is arranged in the circulating water pipeline, and the permanent magnet motor stator is fixed on the outer side of the circulating water pipeline; and a vacuum cavity is formed in a gap between the permanent magnet motor stator and the permanent magnet motor rotor.
2. The superconducting nuclear main pump structure suitable for a nuclear power plant primary circulation main pump according to claim 1, wherein: the bottom surface of the blade main shaft is adhered and fixed with the permanent magnet array through glue.
3. The superconducting nuclear main pump structure suitable for a nuclear power plant primary circulation main pump according to claim 1, wherein: the vacuum cavity is of a double-layer structure, and a high-strength heat insulation material is adopted in the vacuum cavity.
4. A superconducting nuclear main pump structure suitable for a nuclear power plant primary circulation main pump according to claim 3, characterized in that: the high-strength heat insulation material is G10 epoxy resin.
5. The superconducting nuclear main pump structure suitable for a nuclear power plant primary circulation main pump according to claim 1, wherein: the permanent magnet array is an N52 neodymium iron boron magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990154.8U CN210068500U (en) | 2019-06-27 | 2019-06-27 | Superconducting nuclear main pump structure suitable for nuclear power station first-stage circulating main pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990154.8U CN210068500U (en) | 2019-06-27 | 2019-06-27 | Superconducting nuclear main pump structure suitable for nuclear power station first-stage circulating main pump |
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| Publication Number | Publication Date |
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| CN210068500U true CN210068500U (en) | 2020-02-14 |
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| CN201920990154.8U Active CN210068500U (en) | 2019-06-27 | 2019-06-27 | Superconducting nuclear main pump structure suitable for nuclear power station first-stage circulating main pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131179A (en) * | 2019-06-27 | 2019-08-16 | 成都理工大学 | A kind of superconduction core Structure of RCP suitable for nuclear power station primary cycle main pump |
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2019
- 2019-06-27 CN CN201920990154.8U patent/CN210068500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131179A (en) * | 2019-06-27 | 2019-08-16 | 成都理工大学 | A kind of superconduction core Structure of RCP suitable for nuclear power station primary cycle main pump |
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