CN207663873U - A kind of control rod drive mechanism control coil that structural strength can be improved - Google Patents
A kind of control rod drive mechanism control coil that structural strength can be improved Download PDFInfo
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- CN207663873U CN207663873U CN201721269039.9U CN201721269039U CN207663873U CN 207663873 U CN207663873 U CN 207663873U CN 201721269039 U CN201721269039 U CN 201721269039U CN 207663873 U CN207663873 U CN 207663873U
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- coil
- outer housing
- control
- drive mechanism
- rod drive
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a kind of control rod drive mechanism control coils that structural strength can be improved, including coil rack, the coil windings being wound on coil rack and the outer housing being sheathed on the outside of coil windings, it is metal shell that also embedding, which has embedding layer, the outer housing, between the outer housing and coil windings；On the length direction of control coil, thickness value of the thickness value of embedding layer more than embedding layer at position between control coil both ends at control coil end position.The control coil passes through structure optimization so that shock resistance, anti-vibration and the moisture-resistance of control coil can be improved, and can achieve the purpose that improve the control coil mechanical strength.
Description
Technical field
The utility model is related to nuclear power station control rod drive mechanism technical fields, and it is strong that structure can be improved more particularly to one kind
The control rod drive mechanism control coil of degree.
Background technology
In nuclear power station, reactor control rod driving mechanism (CRDM) is by promotion, underthrust or keeps control rod in reactor core
In position control the Nuclear Fission Rate of reactor, CRDM also quickly can realize emergency shut-down by underthrust control rod under the accident conditions
To ensure nuclear safety.Realize that above-mentioned function be unable to do without CRDM electromagnetic coil assemblies, due to its special working environment and function
It is most important, therefore require CRDM electromagnetic coils that must have the characteristics that high temperature resistant, radiation resistance, moisture resistance antidetonation, that is, require its necessary
With good integral strength.
Nuclear power station CRDM is chronically at strong irradiation, high temperature and in the bad working environments compared with thump and vibration.In this way
Under conditions of harsh, its service life also should ensure that, this just brings many difficulties to the design and manufacture of CRDM electric components.Control
Coil processed is electric component important in CRDM, is the power resources of control rod drive mechanism, therefore it is required that it must reliability
Good, overall mechanical strength height, can be resistant to shock and vibration well.
Authorization Notice No. is the utility model of CN2442364Y《Insulation encapsulated coil》, application No. is
CN201220680358.X, the utility model that Authorization Notice No. is CN203026286U《One kind being suitable for control rod drive mechanism
Control coil structure》And application number CN201611245267.2《Command bundle rods for nuclear reactors driving mechanism electromagnetic coil and its
Preparation method》, a kind of insulation system all is provided for CRDM control coils, it is resistance to that these insulation systems can be such that control coil has
High temperature, radiotolerant performance.
Although having done many researchs, existing coil knot to control rod drive mechanism center line coil structures in the prior art
Structure is when in use, however it remains the overall mechanical strength of coil also deficiency, the shock resistance of coil, anti-vibration and moisture-resistance
It is all bad, it cannot be satisfied People's Republic of China's energy industry standard NB/T20279-2014 of National Energy Board's publication《Nuclear power
Factory's control rod drive mechanism coil insulation system heat resistance assessment method》Relevant regulations the problem of.Working out as a result, can expire
The high intensity control coil of the foot standard prescribed requirement is those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
It disclosure satisfy that the high intensity control line of 2014 standard prescribed requirements of NB/T20279-for set forth above working out
The problem of circle is those skilled in the art's technical problem urgently to be resolved hurrily, the utility model provides one kind, and that structure can be improved is strong
The control rod drive mechanism control coil of degree, the control coil pass through structure optimization so that the shock resistance of control coil, antivibration
Dynamic and moisture-resistance can be improved, and can achieve the purpose that improve the control coil mechanical strength.
A kind of control rod drive mechanism control coil that structural strength can be improved provided by the utility model passes through following
Technical essential solves the problems, such as, a kind of control rod drive mechanism control coil that structural strength can be improved, including coil rack,
The coil windings being wound on coil rack and the outer housing being sheathed on the outside of coil windings, the outer housing and coil windings it
Between also embedding have an embedding layer, the outer housing is metal shell；
On the length direction of control coil, the thickness value of embedding layer is more than control coil two at control coil end position
Between end at position embedding layer thickness value.
Specifically, being used to undertake the temperature of alternation when CRDM works for the outer housing of metal shell above, vibrating and answer
Power is impacted, and the overall mechanical strength of control coil can be greatly enhanced；Meanwhile in control coil, the embedding layer obtained by embedding is whole
Body is cylindrical in shape, embedding layer as the separator between coil windings and outer housing, and fill up completely coil windings and outer housing it
Between gap, while being set as the embedding layer at end position compared to the thickness of embedding layer is thicker at position between end,
The thickness change region of embedding layer, embedding layer and between line winding and/or between outer housing by can mutually generate normal pressure,
When ensureing this control coil in use by the impact, embedding layer is more difficult de- with coil windings or outer housing
From enabling control coil to combine closely as entirety so that coil has longer service life, better anti shock and vibration energy
Power and humidity resistance.Meanwhile inventor proves by theory analysis and practice test, the whirlpool formed in completely enclosed outer housing
Stream can't influence the normal operation of CRDM, thus be not necessarily designed to for it is in the prior art be nonmetallic materials outer housing or
Metal shell with cutout slot, to enormously simplify the structure and manufacture difficulty of outer housing, while can be improved outer housing
Integral strength.
Further technical solution is：
As the specific implementation of outer housing, the outer housing is rounded cylindrical structure made of metal.This
Outer housing has better shape retentivity in vibrated, stress impact and temperature loading in realization method.
As the specific implementation of outer housing, the rounded cylindrical structure is round metal bobbin or is logical with sheet metal
Cross welding, crimping, cylinder-like structure made of overlapping mode.
To enable coil rack, embedding layer, outer housing three preferably to provide protection for coil windings, it is conducive to simultaneously
The stability of each component relative position relation on this control coil is both provided with cricoid end for the both ends of the coil rack
Flange；
The axis collinear of the outer housing, end flange and coil rack；
The projection of the outer housing towards arbitrary end flange is fallen in the inside of the end flange.
As the specific implementation form of coil windings, the coil windings include winding conducting wire, the table of the winding conducting wire
Face is impregnated with impregnating varnish, and filled layer made of being filled by impregnating varnish is additionally provided in the gap between winding conducting wire.In the present solution,
Cure winding conducting wire by impregnating varnish and obtain coil windings, gained coil windings have better humidity resistance and impact resistance
Energy；Simultaneously because gapless between winding conducting wire, therefore the coil windings that this programme provides also have better heat dissipation performance.
As the specific implementation of embedding layer, the embedding layer is formed by silica sand and dipping potting material cure.This reality
In existing mode, gained embedding layer mechanical strength is good, and good insulating, coefficient of thermal expansion is small, while having ideal thermal conductivity and temperature
Spend tolerance.
As the specific implementation of control coil, the both ends of the coil windings are both provided with winding thickness transition,
Along end to the middle part direction of coil windings any one end, the thickness of the winding thickness transition at the end linearly thickens；
Along end to the middle part direction of coil windings any one end, the embedding at the winding thickness gradual change fragment position at the end
The thickness of layer is linearly thinning.In the present solution, i.e. by the both ends of coil windings around being made thinner, then coil windings and outer housing it
Between can be obtained the embedding layer of particular form after embedding potting compound, i.e., present solution provides a kind of easy to process and manufacture specific
Scheme；Meanwhile this specific implementation is equivalent in the end of control coil, the faying faces of embedding layer and coil windings relative to
The axis of control coil be an inclined-plane, in this way, by the inclined-plane constrain coil windings relative to embedding layer position and
Increase the mode that fluid enters gap resistance between embedding layer and coil windings so that embedding layer can provide more for coil windings
Good axial seal performance.
The utility model has the advantages that：
In the present solution, above for metal shell outer housing be used for undertake CRDM work when alternation temperature, vibration and
Stress impact can greatly enhance the overall mechanical strength of control coil；Meanwhile in control coil, the embedding layer obtained by embedding
Entirety is cylindrical in shape, and embedding layer fills up coil windings and outer housing completely as the separator between coil windings and outer housing
Between gap, while being set as the embedding layer at end position compared to the thickness of embedding layer is thicker at position between end,
In the thickness change region of embedding layer, embedding layer and between line winding and/or between outer housing by can mutually generate positive pressure
Power, when ensureing this control coil in use by the impact, embedding layer and coil windings or outer housing are more difficult
It is detached from, that is, control coil is enable to combine closely as entirety so that coil has longer service life, better anti shock and vibration
Ability and humidity resistance.Meanwhile inventor proves by theory analysis and practice test, is formed in completely enclosed outer housing
Vortex can't influence the normal operation of CRDM, thus be not necessarily designed to for it is in the prior art be nonmetallic materials outer housing
Or the metal shell with cutout slot, to enormously simplify the structure and manufacture difficulty of outer housing, while outer housing can be improved
Integral strength.
Description of the drawings
Fig. 1 is a kind of control rod drive mechanism that structural strength can be improved described in the utility model with control coil one
The sectional view of specific embodiment；
Fig. 2 is a kind of control rod drive mechanism that structural strength can be improved described in the utility model with control coil one
In specific embodiment, the structural schematic diagram of outer housing.
Reference numeral in figure is followed successively by：1, embedding layer, 2, outer housing, 3, coil windings, 4, coil rack, 5, end it is convex
Edge.
Specific implementation mode
With reference to embodiment, the utility model is described in further detail, but the structure of the utility model is not only
It is limited to following embodiment.
Embodiment 1：
As depicted in figs. 1 and 2, a kind of control rod drive mechanism control coil that structural strength can be improved, including coil
Skeleton 4, the coil windings 3 being wound on coil rack 4 and the outer housing 2 for being sheathed on 3 outside of coil windings, the outer housing 2
It is metal shell that also embedding, which has embedding layer 1, the outer housing 2, between coil windings 3；
On the length direction of control coil, the thickness value of embedding layer 1 is more than control coil at control coil end position
Between both ends at position embedding layer 1 thickness value.
Specifically, being used to undertake the temperature of alternation when CRDM works for the outer housing 2 of metal shell above, vibrating and answer
Power is impacted, and the overall mechanical strength of control coil can be greatly enhanced；Meanwhile in control coil, the embedding layer 1 obtained by embedding is whole
Body is cylindrical in shape, and embedding layer 1 fills up coil windings 3 and shell completely as the separator between coil windings 3 and outer housing 2
Gap between body 2, at the same be set as the embedding layer 1 at end position compared between end at position embedding layer 1 thickness
It is thicker, in the thickness change region of embedding layer 1, embedding layer 1 and between line winding and/or between outer housing 2 by can be mutual
Normal pressure is generated, when ensureing this control coil in use by the impact, embedding layer 1 and coil windings 3 or shell
2 more difficult disengaging of body, that is, enable control coil to combine closely as entirety so that coil has longer service life, more preferable
Anti shock and vibration ability and humidity resistance.Meanwhile inventor proves by theory analysis and practice test, completely enclosed is outer
The vortex formed in shell 2 can't influence the normal operation of CRDM, thus be not necessarily designed to for it is in the prior art be non-gold
Belong to the outer housing 2 of material or the metal shell with cutout slot, to enormously simplify the structure and manufacture difficulty of outer housing 2,
The integral strength of outer housing 2 can be improved simultaneously.
Embodiment 2：
As shown in Figure 1 to Figure 2, the present embodiment is further qualified on the basis of embodiment 1：Tool as outer housing 2
Body realization method, the outer housing 2 are rounded cylindrical structure made of metal.In this realization method outer housing 2 by
When to vibration, stress impact and temperature loading, there is better shape retentivity.
As the specific implementation of outer housing 2, the rounded cylindrical structure is round metal bobbin or is with sheet metal
The cylinder-like structure made of welding, crimping, overlapping mode.
To enable coil rack 4, embedding layer 1,2 three of outer housing to be preferably that coil windings 3 provide protection, simultaneously
Conducive to the stability of each component relative position relation on this control coil, ring-type is both provided with for the both ends of the coil rack 4
End flange 5；
The axis collinear of the outer housing 2, end flange 5 and coil rack 4 four；
The projection of the outer housing 2 towards arbitrary end flange 5 is fallen in the inside of the end flange 5.
As the specific implementation form of coil windings 3, the coil windings 3 include winding conducting wire, the winding conducting wire
Surface is impregnated with impregnating varnish, and filled layer made of being filled by impregnating varnish is additionally provided in the gap between winding conducting wire.This programme
In, winding conducting wire is cured by impregnating varnish and obtains coil windings 3, gained coil windings 3 have better humidity resistance and anti-impact
Hit performance；Simultaneously because gapless between winding conducting wire, therefore the coil windings 3 that this programme provides also have better thermal diffusivity
Energy.
As the specific implementation of embedding layer 1, the embedding layer 1 is formed by silica sand and dipping potting material cure.This
In realization method, 1 mechanical strength of gained embedding layer is good, and good insulating, coefficient of thermal expansion is small, at the same have ideal thermal conductivity and
Temperature tolerance.
Embodiment 3：
The present embodiment is made further to limit on the basis of any one technical solution that any of the above one embodiment provides
It is fixed：As shown in Figure 1, the specific implementation as control coil, the both ends of the coil windings 3 are both provided with winding thickness gradually
Become section, along end to the middle part direction of 3 any one end of coil windings, the thickness of the winding thickness transition at the end linearly becomes
It is thick；
Along end to the middle part direction of 3 any one end of coil windings, the filling at the winding thickness gradual change fragment position at the end
The thickness of sealing 1 is linearly thinning.In the present solution, i.e. by the both ends of coil windings 3 around being made thinner, as the number of turns is less, then online
The embedding layer 1 of particular form is can be obtained between circle winding 3 and outer housing 2 after embedding potting compound.I.e. present solution provides one kind
Easy to process and manufacture concrete scheme.
The above content is the further descriptions made to the utility model in conjunction with specific preferred embodiment, cannot recognize
Determine specific embodiment of the present utility model and is confined to these explanations.For the common skill of the utility model technical field
For art personnel, the other embodiment obtained in the case where not departing from the technical solution of the utility model should be included in this practicality
In novel protection domain.
Claims (6)
1. a kind of control rod drive mechanism control coil that structural strength can be improved, including coil rack（4）, be wound in coil
Skeleton（4）On coil windings（3）And it is sheathed on coil windings（3）The outer housing in outside（2）, the outer housing（2）With coil
Winding（3）Between also embedding have embedding layer（1）, which is characterized in that the outer housing（2）For metal shell；
On the length direction of control coil, embedding layer at control coil end position（1）Thickness value be more than control coil two
Embedding layer at position between end（1）Thickness value；
Outer housing is unitary circular cylinder made of metal.
2. a kind of control rod drive mechanism control coil that structural strength can be improved according to claim 1, feature
It is, the rounded cylindrical structure is round metal bobbin or is round made of welding, crimping, overlapping mode with sheet metal
Tubular structure.
3. a kind of control rod drive mechanism control coil that structural strength can be improved according to claim 1, feature
It is, the coil rack（4）Both ends be both provided with cricoid end flange（5）；
The outer housing（2）, end flange（5）And coil rack（4）Four axis collinear；
The outer housing（2）Towards arbitrary end flange（5）Projection fall in the end flange（5）Inside.
4. a kind of control rod drive mechanism control coil that structural strength can be improved according to claim 1, feature
It is, the coil windings（3）Including winding conducting wire, the surface of the winding conducting wire is impregnated with impregnating varnish, between winding conducting wire
Gap in be additionally provided with filled by impregnating varnish made of filled layer.
5. a kind of control rod drive mechanism control that structural strength can be improved as claimed in any of claims 1 to 4
Coil processed, which is characterized in that the embedding layer（1）It is formed by silica sand and dipping potting material cure.
6. a kind of control rod drive mechanism control that structural strength can be improved as claimed in any of claims 1 to 4
Coil processed, which is characterized in that the coil windings（3）Both ends be both provided with winding thickness transition, along coil windings（3）
The thickness in the end of any one end to middle part direction, the winding thickness transition at the end linearly thickens；
Along coil windings（3）The end of any one end to middle part direction, the embedding at the winding thickness gradual change fragment position at the end
Layer（1）Thickness it is linearly thinning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269039.9U CN207663873U (en) | 2017-09-29 | 2017-09-29 | A kind of control rod drive mechanism control coil that structural strength can be improved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269039.9U CN207663873U (en) | 2017-09-29 | 2017-09-29 | A kind of control rod drive mechanism control coil that structural strength can be improved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207663873U true CN207663873U (en) | 2018-07-27 |
Family
ID=62936003
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721269039.9U Active CN207663873U (en) | 2017-09-29 | 2017-09-29 | A kind of control rod drive mechanism control coil that structural strength can be improved |
Country Status (1)
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|---|---|
| CN (1) | CN207663873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993250A (en) * | 2019-10-30 | 2020-04-10 | 中广核工程有限公司 | High-temperature-resistant electromagnetic coil for control rod driving mechanism of nuclear power station |
-
2017
- 2017-09-29 CN CN201721269039.9U patent/CN207663873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993250A (en) * | 2019-10-30 | 2020-04-10 | 中广核工程有限公司 | High-temperature-resistant electromagnetic coil for control rod driving mechanism of nuclear power station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180830 Address after: 200000 1901, 14 Lane 152 lane, Yanchang Road, Jingan District, Shanghai. Patentee after: Yu Jie Address before: Room 203, room 108, Anshan, Yangpu District, Shanghai, Yangpu District, Shanghai Patentee before: Huang Xiyu |
|
| TR01 | Transfer of patent right |