CN103529234A - Device for detecting revolution speed of nuclear-stage main pump - Google Patents
Device for detecting revolution speed of nuclear-stage main pump Download PDFInfo
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- CN103529234A CN103529234A CN201310464807.6A CN201310464807A CN103529234A CN 103529234 A CN103529234 A CN 103529234A CN 201310464807 A CN201310464807 A CN 201310464807A CN 103529234 A CN103529234 A CN 103529234A
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- main pump
- rotating speed
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- nuclear
- measuring sensor
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Abstract
The invention discloses a device for detecting the revolution speed of a nuclear-stage main pump. An iron magnetic sheet linked with a main shaft of the nuclear-stage main pump rotates in a preset gap, the preset gap is formed in a closed electromagnet, a permanent magnetic steel is fixedly arranged on the closed electromagnet with the preset gap, the closed electromagnet is wound with an electromagnetic coil, and the electromagnetic coil guides out a revolution speed measurement electromagnetic signal. A revolution speed measurement sensor of the nuclear-stage main pump, which is provided by the invention, is an important element for measuring the revolution speed of a nuclear power key device; the problem of signal instability caused by the change of a trigger in start and stop processes of the main pump is solved, so that the accident rate is reduced.
Description
Technical field:
The present invention relates to a kind of rotating speed measuring sensor.It is nuclear power main pump rotation-speed measuring device.
Background technology:
China is the nuclear power station K1 core level speed probe dependence on import of operation at present, western countries block and cause the de-confession of portioned product China's nuclear technology, for the Nuclear Electricity development of China brings potential harm, requiring of K1 core level speed probe is high, must meet reliably working, continuous coverage in the particular surroundings of radiation and High Temperature High Pressure, Given this, develop the work that the industrial structure that serial core level instrument and meter is China's clean energy resource nuclear power must complete.
Summary of the invention:
The object of the invention is to propose a kind of device that detects core utmost point main pump rotating speed, main pump speed probe, is not subject to axial location to affect stable output amplitude, can continuous coverage in the particular surroundings of radiation and High Temperature High Pressure, and there is high reliability.
Technical solution of the present invention is: core level main pump rotating speed measuring sensor, rotate in the breach of a setting with the ferromagnetic sheet of core level main pump main shaft interlock, the breach of setting is to set on closing electromagnets, this closed electromagnetic ferropexy permanent-magnet steel jaggy, closing electromagnets coiling solenoid, solenoid is drawn tachometric survey electromagnetic signal.
Further, closing electromagnets jaggy is C type armature, fixing permanent-magnet steel (permanent-magnet steel be close to C type armature also can) on a C type armature, and the front end that stretches out of armature is installed two solenoids, after two groups of coils from parallel connection of coils, draws.The open-ended place of stretching out front end of C type armature is the induction zone of sensor, the sender tooth of the equipment ferromagnetic sheet of core level main pump main shaft interlock (with) can detect the pulse signal with synchronization by induction zone, and this signal is not subject to sender tooth change in location to affect the output amplitude of sensor.The especially high Q value of described solenoid solenoid, as C type armature adopts siliconized plate, the number of turn of coil is greater than 1200.
The present invention relates to a kind of speed probe, be used in the tachometric survey of main pump in Nuclear Safety shell, main pump is vertical, on the coupling flange dish of pump, sender tooth is installed, suitably be provided with the gap width of C type armature, shaft coupling has larger upper and lower displacement amount in shutdown process, and conventional sensors cannot be measured the rotating speed of this point, therefore the present invention proposes two complementary speed probes of magnetic pole, solved the signal amplitude instability problem that sender tooth causes because of the variation of position.
The present invention carries out tachometric survey according to the electromagnetic induction principle of mechanical transfer, by the two ends at a C type armature armature, two high Q value solenoids is installed, and after two groups of coils from parallel connection of coils, draws.The front opening place of C type armature is the induction zone of sensor, and the sender tooth of equipment can detect the pulse signal with synchronization by induction zone, and this signal is not subject to sender tooth change in location to affect the output amplitude of sensor.
The invention has the beneficial effects as follows: the core level main pump rotating speed measuring sensor that the present invention proposes, be the tachometric survey critical elements of nuclear power key equipment, China all adopts French import at operational outfit associated part at present, and production design early, relatively backward, failure rate and reliability are low.The invention solves trigger in main pump start and stop process and change the jitter problem causing, and then reduced accident rate.The present invention proposes two complementary speed probes of magnetic pole, solved the signal amplitude instability problem that sender tooth causes because of the variation of position.High Q value solenoid makes sensor have good precision.When Q value is greater than 2,40Khz when solenoid is operated in 1Khz, be greater than 1.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
The specific embodiment of the present invention is as follows: as shown in the figure, and 1 turning axle, 2 sender teeth, 3A coil, 4 magnet steel, 5B coil 6. pure iron 7. output A8. output B, 10 shaft couplings.Fixing permanent-magnet steel 4 on a C type armature 6, the two ends of armature export 7,8 after 3,5, two groups of coils from parallel connection of coils of two high Q value solenoids are installed.The open-ended place of front end of C type armature is the induction zone of sensor, is arranged on sender tooth 2 on main shaft 1 and can detects the pulse signal with synchronization by induction zone, and this signal is not subject to sender tooth change in location to affect the output amplitude of sensor.
The especially high Q value of described solenoid solenoid, as C type armature adopts siliconized plate, the number of turn of coil is greater than 1200.When Q value is greater than 2,40Khz during 1Khz, being greater than 1 can meet the demands.
The present invention relates to a kind of speed probe, be used in the tachometric survey of main pump in Nuclear Safety shell, main pump is vertical, on the coupling flange dish of pump, sender tooth is installed, suitably be provided with the gap width of C type armature, shaft coupling has larger upper and lower displacement amount in shutdown process, and conventional sensors cannot be measured the rotating speed of this point, therefore the present invention proposes two complementary speed probes of magnetic pole, solved the signal amplitude instability problem that sender tooth causes because of the variation of position.
The middle magnetic conduction arm of C type armature (forming by superimposed siliconized plate or pure iron sheet) is close to a permanent-magnet steel, and permanent-magnet steel adopts samarium-cobalt permanent-magnetic material.Samarium-cobalt permanent-magnetic material has higher working temperature and extremely strong magnetic field intensity.
Enforcement of the present invention is not in order to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on claims person of defining.
Claims (6)
1. a core level main pump rotating speed measuring sensor, it is characterized in that rotating in the breach of a setting with the ferromagnetic sheet of core level main pump main shaft interlock, the breach of setting is on closing electromagnets, to set breach, fixing permanent-magnet steel on this closing electromagnets jaggy, closing electromagnets coiling solenoid, solenoid is drawn tachometric survey electromagnetic signal.
2. core level main pump rotating speed measuring sensor according to claim 1, is characterized in that closing electromagnets jaggy is C type armature, fixing permanent-magnet steel on a C type armature, and the front end that stretches out of armature is installed two solenoids, after two groups of coils from parallel connection of coils, draws.
3. core level main pump rotating speed measuring sensor according to claim 1 and 2, is characterized in that permanent-magnet steel is close to C type armature.
4. core level main pump rotating speed measuring sensor according to claim 1 and 2, is characterized in that C type armature adopts siliconized plate, and the number of turn of coil is greater than 1200.
5. core level main pump rotating speed measuring sensor according to claim 1 and 2, is characterized in that permanent-magnet steel adopts samarium-cobalt permanent-magnetic material.
6. core level main pump rotating speed measuring sensor according to claim 1 and 2, is greater than 1 when Q value is greater than 2,40Khz while it is characterized in that solenoid is operated in 1Khz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464807.6A CN103529234A (en) | 2013-09-30 | 2013-09-30 | Device for detecting revolution speed of nuclear-stage main pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464807.6A CN103529234A (en) | 2013-09-30 | 2013-09-30 | Device for detecting revolution speed of nuclear-stage main pump |
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| CN103529234A true CN103529234A (en) | 2014-01-22 |
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| CN201310464807.6A Pending CN103529234A (en) | 2013-09-30 | 2013-09-30 | Device for detecting revolution speed of nuclear-stage main pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538066A (en) * | 2014-11-18 | 2015-04-22 | 上海发电设备成套设计研究院 | Method for continuously measuring rotating speed of main heat transfer pump in nuclear island from reverse rotation to forward rotation |
| CN107037230A (en) * | 2017-04-17 | 2017-08-11 | 广西防城港核电有限公司 | A kind of active and standby detectable signal processing method and processing device of nuclear power station main pump rotating speed, frame |
| CN108107230A (en) * | 2017-12-01 | 2018-06-01 | 中广核工程有限公司 | A kind of nuclear power station main pump speed measuring system and method |
| CN114509930A (en) * | 2021-12-23 | 2022-05-17 | 歌尔股份有限公司 | Electronic watch crown module and electronic equipment |
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| DE2634063A1 (en) * | 1976-07-29 | 1978-02-02 | Vdo Schindling | INDUCTIVE SCANNING DEVICE |
| CN2526851Y (en) * | 2001-05-15 | 2002-12-18 | 华东师范大学 | Nano-magnetic sensitive rotating speed sensor |
| DE102006020602A1 (en) * | 2006-05-02 | 2007-11-08 | Rolls-Royce Deutschland Ltd & Co Kg | Inductive sensor for measuring e.g. rotation speed of shaft, has permanent magnet for generating magnetic field, where closed magnetic path of magnetic flow line comprises air gap, in which rotating component is engaged |
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2013
- 2013-09-30 CN CN201310464807.6A patent/CN103529234A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2634063A1 (en) * | 1976-07-29 | 1978-02-02 | Vdo Schindling | INDUCTIVE SCANNING DEVICE |
| CN2526851Y (en) * | 2001-05-15 | 2002-12-18 | 华东师范大学 | Nano-magnetic sensitive rotating speed sensor |
| DE102006020602A1 (en) * | 2006-05-02 | 2007-11-08 | Rolls-Royce Deutschland Ltd & Co Kg | Inductive sensor for measuring e.g. rotation speed of shaft, has permanent magnet for generating magnetic field, where closed magnetic path of magnetic flow line comprises air gap, in which rotating component is engaged |
Non-Patent Citations (2)
| Title |
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| 张志莉等: "屏蔽电泵用永磁测速装置的设计与试验验证", 《机械管理开发》, no. 52011, 31 October 2011 (2011-10-31), pages 15 - 1 * |
| 黎廷云: "磁电式转速传感器的分类及评述", 《仪表技术与传感器》, no. 51989, 31 December 1989 (1989-12-31) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538066A (en) * | 2014-11-18 | 2015-04-22 | 上海发电设备成套设计研究院 | Method for continuously measuring rotating speed of main heat transfer pump in nuclear island from reverse rotation to forward rotation |
| CN107037230A (en) * | 2017-04-17 | 2017-08-11 | 广西防城港核电有限公司 | A kind of active and standby detectable signal processing method and processing device of nuclear power station main pump rotating speed, frame |
| CN107037230B (en) * | 2017-04-17 | 2019-06-18 | 广西防城港核电有限公司 | A kind of active and standby detectable signal processing method and processing device of nuclear power station main pump revolving speed, rack |
| CN108107230A (en) * | 2017-12-01 | 2018-06-01 | 中广核工程有限公司 | A kind of nuclear power station main pump speed measuring system and method |
| CN114509930A (en) * | 2021-12-23 | 2022-05-17 | 歌尔股份有限公司 | Electronic watch crown module and electronic equipment |
| CN114509930B (en) * | 2021-12-23 | 2023-10-31 | 歌尔股份有限公司 | Electronic watch crown module and electronic equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CNNC CHINA NUCLEAR POWER ENGINEERING CO., LTD.;HAN Free format text: FORMER OWNER: JIANGYIN ZHONGHE ELECTRIC POWER APPARATUS CO., LTD. Effective date: 20150128 Owner name: JIANGYIN ZHONGHE ELECTRIC POWER APPARATUS CO., LTD Effective date: 20150128 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shen Gang Inventor after: Fan Sui Inventor after: Xu Ligen Inventor after: Yang Qin Inventor after: Shang Xuelian Inventor after: Wan Zhiyun Inventor after: Xiao Daiyun Inventor after: Zhang Ruiping Inventor before: Shen Gang Inventor before: Wu Minjun Inventor before: Yang Qin Inventor before: Wan Zhiyun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHEN GANG WU MINJUN YANG QIN WAN ZHIYUN TO: SHEN GANG FAN SUI XU LIGEN YANG QIN SHANG XUELIAN WAN ZHIYUN XIAO DAIYUN ZHANG RUIPING Free format text: CORRECT: ADDRESS; FROM: 214432 WUXI, JIANGSU PROVINCE TO: 100840 HAIDIAN, BEIJING |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150128 Address after: 100840 Beijing West Third Ring Road, Haidian District, No. 117 Applicant after: China Nuclear Power Engineering Co., Ltd. Applicant after: Jiangyin Zhonghe Electric Power Apparatus Co., Ltd. Address before: 214432 West Bridge Road, Jiangsu, Wuxi, No. 8 Applicant before: Jiangyin Zhonghe Electric Power Apparatus Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140122 |