CN210068500U - A superconducting nuclear main pump structure suitable for the primary circulating main pump of a nuclear power plant - Google Patents
A superconducting nuclear main pump structure suitable for the primary circulating main pump of a nuclear power plant 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000005339 levitation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002925 low-level radioactive waste Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004046 wet winding Methods 0.000 description 1
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Abstract
本实用新型公开了一种适用于核电站一级循环主泵的超导核主泵结构，包括叶片主轴、循环水管道、永磁电机定子和永磁电机转子；叶片主轴上安装若干个叶片；位于叶片主轴的顶部和底部的两端均贴设若干永磁电机转子，位于叶片主轴的底面固定安装一呈长方体的永磁铁阵列；距离所述永磁铁阵列的正下方设置一与永磁铁阵列配合的超导块阵列；叶片主轴设置于循环水管道内，永磁电机定子固定于循环水管道外侧；位于永磁电机定子和永磁电机转子之间的间隙中开设真空腔。
The utility model discloses a superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power plant, comprising a blade main shaft, a circulating water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor; a plurality of blades are installed on the blade main shaft; Both ends of the top and bottom of the blade main shaft are attached with a number of permanent magnet motor rotors, and a rectangular parallelepiped permanent magnet array is fixedly installed on the bottom surface of the blade main shaft; The superconducting block array; the blade spindle is arranged in the circulating water pipe, the permanent magnet motor stator is fixed on the outside of the circulating water pipe; a vacuum cavity is set in the gap between the permanent magnet motor stator and the permanent magnet motor rotor.
Description
技术领域technical field
本实用新型属于核电一级泵的技术领域，具体涉及一种适用于核电站一级循环主泵的超导核主泵结构。The utility model belongs to the technical field of nuclear power primary pumps, in particular to a superconducting nuclear main pump structure suitable for the primary circulation primary pumps of nuclear power plants.
背景技术Background technique
核电站是利用核能发电，是和平使用核能的有效方式。核电站不会排出大量污染物到环境中，核燃料用量较少，运行成本低。但是核电站会产生高低阶放射性废料，运行时一旦发生核泄漏，会对环境及周边环境造成危害。尤其是承担核电站一回路系统的主冷却剂泵，由于动密封及静密封的失效，会泄漏直接带有辐射的冷凝剂。Nuclear power plants are the use of nuclear energy to generate electricity and are an effective way to peacefully use nuclear energy. Nuclear power plants do not emit a lot of pollutants into the environment, use less nuclear fuel, and have low operating costs. However, nuclear power plants will produce high and low-level radioactive wastes. Once nuclear leakage occurs during operation, it will cause harm to the environment and the surrounding environment. In particular, the main coolant pump responsible for the primary circuit system of the nuclear power plant will leak the condensate with direct radiation due to the failure of the dynamic seal and the static seal.
在传统的主冷却剂泵中，一二代主泵采用机械密封，存在润滑及冷却，三四代主泵采用静密封，但由于需要电缆贯穿件及湿绕组，使主泵的密封性能降低。In the traditional main coolant pump, the first and second generation main pumps use mechanical seals, and there is lubrication and cooling. The third and fourth generation main pumps use static seals, but due to the need for cable penetrations and wet windings, the sealing performance of the main pump is reduced.
实用新型内容Utility model content
本实用新型的目的在于针对现有技术中的上述不足，提供一种适用于核电站一级循环主泵的超导核主泵结构，以解决现有一级循环主泵存在泄漏的问题。The purpose of the present utility model is to provide a superconducting nuclear main pump structure suitable for the primary circulating main pump of a nuclear power plant to solve the problem of leakage in the existing primary circulating main pump, aiming at the above deficiencies in the prior art.
为达到上述目的，本实用新型采取的技术方案是：In order to achieve the above object, the technical scheme adopted by the present utility model is:
一种适用于核电站一级循环主泵的超导核主泵结构，其包括叶片主轴、循环水管道、永磁电机定子和永磁电机转子；A superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power plant, comprising a blade main shaft, a circulating water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor;
叶片主轴上安装若干个叶片；位于叶片主轴的顶部和底部的两端均贴设若干永磁电机转子，位于叶片主轴的底面固定安装一呈长方体的永磁铁阵列；距离所述永磁铁阵列的正下方设置一与永磁铁阵列配合的超导块阵列；叶片主轴设置于循环水管道内，永磁电机定子固定于循环水管道外侧；位于永磁电机定子和永磁电机转子之间的间隙中开设真空腔。Several blades are installed on the blade main shaft; several permanent magnet motor rotors are attached to both ends of the top and 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 below; the blade spindle is arranged in the circulating water pipeline, and the permanent magnet motor stator is fixed on the outside of the circulating water pipeline; a vacuum is set in the gap between the permanent magnet motor stator and the permanent magnet motor rotor cavity.
优选地，叶片主轴的底面通过胶水粘贴、固定永磁铁阵列。Preferably, the bottom surface of the blade main shaft is pasted and fixed with the permanent magnet array by glue.
优选地，真空腔为双层结构，其内部采用高强度隔热材料。Preferably, the vacuum chamber has a double-layer structure, and high-strength thermal insulation materials are used in its interior.
优选地，高强度隔热材料为G10环氧树脂。Preferably, the high-strength heat insulating material is G10 epoxy resin.
优选地，永磁铁阵列为N52钕铁硼磁铁。Preferably, the permanent magnet array is N52 NdFeB magnets.
本实用新型提供的适用于核电站一级循环主泵的超导核主泵结构，具有以下有益效果：The superconducting nuclear main pump structure suitable for the primary circulating main pump of the nuclear power plant provided by the utility model has the following beneficial effects:
本实用新型采用非接触磁悬浮磁力泵，用于回路冷凝剂循环，利用磁悬浮电机带动叶片，泵内部所有活动部件全部处于悬浮状态，不存在动密封及静密封，不需维护，无泄漏风险。The utility model adopts a non-contact magnetic levitation magnetic pump, which is used for the circulation of the condensate in the circuit, and the magnetic levitation motor is used to drive the vanes.
附图说明Description of drawings
图1为适用于核电站一级循环主泵的超导核主泵结构冷却前的结构图。Figure 1 is a structural diagram of a superconducting nuclear main pump structure suitable for the primary circulating main pump of a nuclear power plant before cooling.
图2为适用于核电站一级循环主泵的超导核主泵结构冷却后的结构图。Figure 2 is a structural diagram of a superconducting nuclear main pump structure suitable for the primary circulating main pump of a nuclear power plant after cooling.
图3为适用于核电站一级循环主泵的超导核主泵结构真空腔的结构图。FIG. 3 is a structural diagram of a vacuum chamber of a superconducting nuclear main pump structure suitable for a primary circulating main pump of a nuclear power plant.
图4为永磁铁阵列。Figure 4 is a permanent magnet array.
图5为超导块材阵列。Figure 5 is an array of superconducting bulk materials.
其中，1、叶片主轴；2、叶片；3、永磁电机定子；4、循环水管道；5、永磁铁阵列；6、永磁电机转子；7、超导块阵列；8、支撑件；9、真空腔。Among them, 1, blade spindle; 2, blade; 3, permanent magnet motor stator; 4, circulating water pipeline; 5, permanent magnet array; 6, permanent magnet motor rotor; 7, superconducting block array; 8, support; 9 , vacuum chamber.
具体实施方式Detailed ways
下面对本实用新型的具体实施方式进行描述，以便于本技术领域的技术人员理解本实用新型，但应该清楚，本实用新型不限于具体实施方式的范围，对本技术领域的普通技术人员来讲，只要各种变化在所附的权利要求限定和确定的本实用新型的精神和范围内，这些变化是显而易见的，一切利用本实用新型构思的实用新型创造均在保护之列。The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. Various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, and these changes are obvious, and all utility model creations utilizing the concept of the present utility model are included in the protection list.
根据本申请的一个实施例，参考图1-图3，本方案的适用于核电站一级循环主泵的超导核主泵结构，包括叶片主轴、循环水管道、永磁电机定子和永磁电机转子。According to an embodiment of the present application, referring to FIG. 1 to FIG. 3 , the structure of the superconducting nuclear main pump suitable for the primary circulating main pump of a nuclear power plant of the present solution includes a blade main shaft, a circulating water pipeline, a permanent magnet motor stator and a permanent magnet motor rotor.
其中，叶片主轴设置于循环水管道内，在叶片主轴上安装固定若干个叶片，位于叶片主轴的顶部和底部的两端均贴设若干个永磁电机转子。Among them, the blade main shaft is arranged in the circulating water pipeline, several blades are installed and fixed on the blade main shaft, and several permanent magnet motor rotors are attached to both ends of the top and bottom of the blade main shaft.
参考图4，位于叶片主轴的底面固定安装一呈长方体的永磁铁阵列，长方体的永磁铁阵列通过胶水粘贴于叶片主轴底面，且永磁铁阵列为N52钕铁硼磁铁。Referring to FIG. 4 , a rectangular permanent magnet array is fixedly installed on the bottom surface of the blade main shaft. The rectangular solid permanent magnet array is pasted on the bottom surface of the blade main shaft through glue, and the permanent magnet array is N52 NdFeB magnets.
参考图5，距离永磁铁阵列的正下方设置一与永磁铁阵列配合的超导块阵列，超导块阵列与永磁铁阵列配合产生悬浮力，将叶片悬浮起来并悬浮至指定的工作位置，永磁电机定子在真空容腔外，驱动永磁电机转子，带动叶片转动。Referring to Figure 5, a superconducting block array is arranged directly below the permanent magnet array to cooperate with the permanent magnet array. The superconducting block array cooperates with the permanent magnet array to generate a levitation force, suspending the blades and suspending them to the designated working position. The magneto stator is outside the vacuum chamber and drives the permanent magnet motor rotor and drives the blades to rotate.
永磁电机定子固定于循环水管道外侧，位于永磁电机定子和永磁电机转子之间的间隙中开设真空腔，真空腔为双层结构，其内部采用高强度隔热材料；真空腔的作用为减少热传导，尽量降低温度对永磁体的影响。The permanent magnet motor stator is fixed on the outside of the circulating water pipe, and a vacuum chamber is opened in the gap between the permanent magnet motor stator and the permanent magnet motor rotor. The vacuum chamber is a double-layer structure, and high-strength thermal insulation materials are used inside it; the role of the vacuum chamber To reduce heat conduction, try to minimize the effect of temperature on the permanent magnets.
高强度隔热材料为G10环氧树脂。The high-strength thermal insulation material is G10 epoxy resin.
本实用新型采用非接触磁悬浮磁力泵，用于回路冷凝剂循环，利用磁悬浮电机带动叶片，泵内部所有活动部件全部处于悬浮状态，不存在动密封及静密封，不需维护，无泄漏风险。The utility model adopts a non-contact magnetic levitation magnetic pump, which is used for the circulation of the condensate in the circuit, and the magnetic levitation motor is used to drive the blades.
虽然结合附图对实用新型的具体实施方式进行了详细地描述，但不应理解为对本专利的保护范围的限定。在权利要求书所描述的范围内，本领域技术人员不经创造性劳动即可做出的各种修改和变形仍属本专利的保护范围。Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, they should not be construed as limiting the protection scope of the present patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative work still belong to the protection scope of this patent.
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