CN206071849U - One seed nucleus level main pump signals of rotational speed sensor ejector - Google Patents
One seed nucleus level main pump signals of rotational speed sensor ejector Download PDFInfo
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- CN206071849U CN206071849U CN201620885540.7U CN201620885540U CN206071849U CN 206071849 U CN206071849 U CN 206071849U CN 201620885540 U CN201620885540 U CN 201620885540U CN 206071849 U CN206071849 U CN 206071849U
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- sensor
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- metal hose
- main pump
- main shaft
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Abstract
Core level main pump signals of rotational speed sensor ejector, on the main shaft of main pump, parallel being embedded in is uniformly distributed and parallel to 48 high permeability stainless steel strips of main shaft axial direction, on main shaft, the side of high permeability stainless steel strip position is provided with sensor, sensor is mounted in sensor shell, sensor shell is column, parallel to high permeability stainless steel strip, sensor shell afterbody is fixed on one end of the metal hose with elasticity, and the holding wire for being directed to sensor shell afterbody is provided with metal hose；Spring is cased with outside metal hose, the other end of metal hose is connected and fixed to bearing cap by a sealing ring, outside bearing cap, stainless steel tube, holding wire is connected by sealed fitting on sealing ring and is also extended in stainless joint and is drawn.
Description
Technical field
The utility model is related to a kind of sensor device of nuclear power field；Especially core level main pump signals of rotational speed sensor draws
Go out device.
Background technology
The level main pump tachometric survey of AP1000 cores and conventional equipment measuring method are different from the Hall-type structure for generally adopting, because
For the active device of hall sensor；AP1000 core level main pumps belong to nuclear power field state-of-the-art technology, be from now on nuclear power send out
Exhibition direction, related core level speed probe is also by external monopolization, therefore develops the main pump speed probe required with core level
Signal ejector has practical significance.In general, it is desirable to reach hall accuracy, main pump rotating speed is sent out device fast and must produce foot
Enough signals.And the property requirement of the output and work of sensor is high, therefore develops the speed probe required with core level
Signal ejector has practical significance.
Core level speed probe is passive electromagnetic induced signal, and signal ejector is extremely delicate.
Utility model content
The purpose of this utility model is to propose a kind of detection core level main pump signals of rotational speed sensor ejector, that is, be used for
Core level main pump rotating speed phase detector, is not only able to detect rotating speed by sensors sides sensing, additionally it is possible to detect core level main pump
The phase place of pump (main shaft), it is ensured that the undistorted of signal is guided out and good reliability.
Technical solution of the present utility model is：Core level main pump signals of rotational speed sensor ejector, the main shaft of main pump
It is upper parallel embedded to be uniformly distributed and parallel to the 4-8 root high permeability stainless steel strips of main shaft axial direction, on main shaft, high permeability is stainless
The side of steel bar position is provided with sensor, and sensor is mounted in sensor shell, and sensor shell is column, parallel to high permeability not
Rust steel bar, sensor shell afterbody are fixed on one end of the metal hose with elasticity, are provided with and are directed to sensor shell in metal hose
The holding wire of afterbody；Spring is cased with outside metal hose, the other end of metal hose is connected and fixed to axle by a sealing ring
Lid is held, outside bearing cap, stainless steel tube, holding wire is connected by sealed fitting on sealing ring and is also extended to stainless joint
It is interior and draw.
In sensor shell post, upper and lower side is provided with permanent magnet, and it is magnetic conduction armature that upper and lower side is provided between permanent magnet,
The signal coil being wound on armature is provided with, signal coil output main pump rotary inductive goes out alternating-current pulse induced voltage, pulse letter
Number frequency it is proportional to main pump rotating speed, therefore sensor can detect the rotating speed and phase place of core level main pump.Signal coil is adopted
Closely row encloses 0.05mm radiation hardness high temperature enamel-covered wire around 2500～3200.
One layer of shielded coil of coil surface coiling, is closely arranged around 350～550 using 0.05mm radiation hardness high temperature enamel-covered wire
Circle, is coated on whole sensor external completely, leaches external electromagnetic interference,
Further, using 5 high permeability stainless steel strips, a diameter of 9mm.
The beneficial effects of the utility model：The utility model proposes core level main pump signals of rotational speed sensor ejector,
Signal ejector has certain flexibility, has certain free degree, for main pump signals of rotational speed sensor during installment work
Ejector, is not only able to detect rotating speed with axle parallel direction, additionally it is possible to detect the phase place of main pump.It is special that its structure meets nuclear power
Environment, on-site installation and maintenance are easily, easy to use.Especially the utility model is uncharged signal output, and reliability is high, symbol
The demand of synkaryon electric equipment.
Description of the drawings
Fig. 1 is the utility model sensor scheme of installation；
Specific embodiment
As illustrated, holding wire exit 1, hermetically sealed connector 2, bracing frame 3, holding wire 4, stainless steel tube 6, stainless steel tube
Joint 5,7, sealing ring 8, bearing cap 9, metal hose 10, spring 11, disrance sleeve 12, sensor 13, stainless steel strip 14, (rotation
Turn) main shaft 15, mounting screw 16.
Specific embodiment of the present utility model is as follows：Core level main pump speed probe, refers to and puts down on the main shaft 15 of main pump
Row is embedded to be uniformly distributed and parallel to 5 stainless steel strips 14 of main shaft axial direction, for producing sender signal, every stainless steel strip
Cross-sectional area is 0.5-1.4cm2, length is 8cm.The especially a diameter of 0.9cm of stainless steel strip, sensor 13 are mounted in sensor shell
Interior, sensor shell is column, parallel to high permeability stainless steel strip.
Sensor shell afterbody is cased with spring equipped with the metal hose with elasticity outside metal hose, sensor shell is arranged on
On flexible connecting plate, holding wire is transmitted by a hermetically sealed connector pipeline, mounting bracket and sleeve pipe of the sensor equipped with combination
Sensor integral sealing after connection, with sleeve-assembled, reliable performance meet nuclear power environmental requirement.
Concrete structure is：Spring 11 is cased with outside metal hose 10, the other end of metal hose is connected by a sealing ring
And bearing cap 9 is fixed on, outside bearing cap, stainless steel tube 6, holding wire is connected by sealed fitting on sealing ring 8 and is also prolonged
Extend in stainless steel joint for pipeline 7 and draw.Holding wire exit 1 is drawn from the hermetically sealed connector 2 of tubulose, and bracing frame 3 is used for solid
Determine hermetically sealed connector 2, stainless steel joint for pipeline 5,7 and stainless steel tube 6 are drawn and protection signal line, sealing ring 8 is also fixed sensing
Device simultaneously draws holding wire.It is located on the bearing cap 9 of axle (duty can be near bearing cap), metal hose 10, and between sensor shell
A disrance sleeve 12 can be filled；The stainless steel strip 14 installed on main shaft 15 is the source of sender, 16 fixing support rack of mounting screw
3。
Sensor measures rotating speed by the way of the sensing of side, and sensor head is packaged with coil, is wound on equipped with armature
Skeleton on, armature using special structure introduction by magnetic field in sensors sides, one layer of shielded coil of coil surface coiling, filter
Go out external electromagnetic interference, Sensor tail is equipped with spring equipped with the metal hose with elasticity, outside flexible pipe, and signal is by a high sealing
Property connector transmission, sensor equipped with combination mounting bracket and sleeve pipe connection, with sleeve-assembled after sensor integral sealing,
Reliable performance meets nuclear power environmental requirement.
A disrance sleeve 12 can be provided with outside sensor 13.
Claims (2)
1. core level main pump signals of rotational speed sensor ejector, is characterized in that parallel being embedded in is uniformly distributed and puts down on the main shaft of main pump
In the 4-8 root high permeability stainless steel strips of main shaft axial direction, on main shaft, the side of high permeability stainless steel strip position is provided with sensing to row
Device, sensor are mounted in sensor shell, and sensor shell is column, and parallel to high permeability stainless steel strip, sensor shell afterbody is solid
One end of the metal hose with elasticity is scheduled on, the holding wire for being directed to sensor shell afterbody in metal hose, is provided with；Metal hose
Outside is cased with spring, and the other end of metal hose is connected and fixed to bearing cap by a sealing ring, outside bearing cap, sealing
Connect stainless steel tube, holding wire by sealed fitting on circle also to extend in stainless joint and draw.
2. core level main pump signals of rotational speed sensor ejector according to claim 1, is characterized in that sensor is externally provided with
One disrance sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620885540.7U CN206071849U (en) | 2016-08-12 | 2016-08-12 | One seed nucleus level main pump signals of rotational speed sensor ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620885540.7U CN206071849U (en) | 2016-08-12 | 2016-08-12 | One seed nucleus level main pump signals of rotational speed sensor ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206071849U true CN206071849U (en) | 2017-04-05 |
Family
ID=58431963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620885540.7U Active CN206071849U (en) | 2016-08-12 | 2016-08-12 | One seed nucleus level main pump signals of rotational speed sensor ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206071849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588848A (en) * | 2017-08-31 | 2018-01-16 | 青岛华迪科技有限公司 | Burner based on vibration principle stops working monitoring device |
-
2016
- 2016-08-12 CN CN201620885540.7U patent/CN206071849U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588848A (en) * | 2017-08-31 | 2018-01-16 | 青岛华迪科技有限公司 | Burner based on vibration principle stops working monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214431 Jiangyin, Jiangsu, Chengjiang Road, No. C, block, No. 402, No. 159 Patentee after: Jiangsu Li Li Instrument Control Technology Co., Ltd. Address before: 214431 Jiangyin, Jiangsu, Chengjiang Road, No. C, block, No. 402, No. 159 Patentee before: Jiangyin Zhonghe Nuclear Instrument Control Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |