CN207718826U - Suitable for shielding the double layer screen layer structure of electrification cooling water pipe - Google Patents
Suitable for shielding the double layer screen layer structure of electrification cooling water pipe Download PDFInfo
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- CN207718826U CN207718826U CN201721831192.6U CN201721831192U CN207718826U CN 207718826 U CN207718826 U CN 207718826U CN 201721831192 U CN201721831192 U CN 201721831192U CN 207718826 U CN207718826 U CN 207718826U
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- layer
- water pipe
- cooling water
- electrification
- shielded
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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 belongs to gap insulation technology, and in particular to a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe.A kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe, outer shield layer including tubulose, setting is similarly the internal layer shielded layer of tubulose in outer layer shielded layer, be arranged between internal layer shielded layer and outer shield layer several for isolation ceramic ring, in internal layer shielded layer setting and electrification cooling water pipe.The remarkable result of the utility model is：The present invention is based on conventional monolayers shielded layers, amplify out internal layer and outer shield layer, i.e. the design concept of the invention of double layer screen layer structure.This new design concept of the invention makes mutually insulated object become the outer shield layer of the internal layer shielded layer and ground connection nowadays with electrification cooling water pipe with same potential by the electrification cooling water pipe of the past and the single-layer shield layer of ground connection.
Description
Technical field
The invention belongs to gap insulation technologies, and in particular to a kind of double layer screen layer being suitable for shielding electrification cooling water pipe
Structure.
Background technology
In fusion field, the cooling water pipe with high voltage is common water cooling facility.Due to band high-potential voltage and need
More complicated structure is wanted to bear the particularity such as thermal stress, often such electrification cooling water pipe and the insulating Design for shielding interlayer
Seem increasingly important.Secondly by high temperature and nuclear radiation and the complicated adverse circumstances such as be in hydrogen-deuterium-tritium helium so that materials'use by
Significant limitation brings difficulty for design.Just currently, being used in the relatively conventional insulation measures in fusion field to charge
Based on cooling water pipe spraying ceramic coat.But it is with the most apparent defect of ceramic coating：
The thermal stress of hot environment electrification cooling water pipe influences in order to prevent, and electrification cooling water pipe is typically with special
Structural form and elastic.This characteristic makes the insulating reliability of coating cannot be guaranteed under thermal shock repeatedly.
The spraying uniformity of electrification cooling water pipe elbow is difficult to ensure, more multiple especially for such structural form
Miscellaneous electrification cooling water pipe, so that the assessment difficulty of insulating reliability rises.
Detachable maintainability is poor.When being mainly reflected in replacement electrification cooling water pipe, cutting and the electrification welded again
Ceramic coating absent compensation difficulty at cooling water pipe is larger, and the detection of insulation performance also can be prodigious challenge after compensation.
Another relatively conventional insulation measures are electrification cooling water pipe and shielding interlayer gap insulation.But it is the most apparent
Defect be：
Due to charging the complexity of cooling water pipe structure, it is desirable to process the constant correspondence shielded layer difficulty of clearance distance
It is big of high cost.
The heated stress influence of cooling water pipe is charged, there may be changes with the clearance distance of shielding interlayer after temperature distortion
Change,
In this way so that insulating reliability cannot be guaranteed.
For above-mentioned several points, conventional monolayers shielding layer structure can not be met multiple using ceramic coating or gap insulation scheme
Design requirement under miscellaneous severe environmental conditions.
With ITER (International Thermonuclear Experimental Reactor), International Thermonuclear
Experimental reactor) in, for Glow Discharge Cleaning system.In Glow Discharge Cleaning, the voltage for charging cooling water pipe is about the system
1.5kV, for environmental gas based on helium, air pressure is about 15 unit Pascals, and electrification cooling water pipe inlet water temperature is about 240
Degree.Under the premise of considering that electrification cooling water pipe does not puncture with earth shield interlayer, according to Paschen's law and corresponding experiment
It can obtain, effective clearance insulation distance is 5mm to 20mm, that is, 5mm should be in extremely by charging cooling water pipe and shielding interlayer spacings
Within the scope of 20mm, it can ensure the effective clearance insulation between the two.
Invention content
The application in view of the drawbacks of the prior art, provides a kind of double layer screen layer knot being suitable for shielding electrification cooling water pipe
Structure.
What the application was realized in：A kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe, including pipe
The internal layer shielded layer for being similarly tubulose is arranged, in internal layer shielded layer and outer layer screen in the outer shield layer of shape in outer layer shielded layer
Cover be arranged between layer several for isolation ceramic ring, setting and electrification cooling water pipe in internal layer shielded layer.
As above a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe told, wherein internal layer shielded layer
There is same potential with electrification cooling water pipe, and end is connected using absolute contact.
As above a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe told, wherein internal layer shielded layer
With the specific effective clearance insulation distance ranging from 5mm to 20mm of outer shield interlayer.
As above a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe told, wherein outer shield layer
Material be stainless steel.
As above a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe told, wherein internal layer shielded layer
Material with electrification cooling water pipe is stainless steel, copper or copper alloy；
As above a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe told, wherein internal layer shielded layer
Main material with outer shield interlayer ceramic ring is 99%Al2O3。
The present invention remarkable result be：The present invention is based on conventional monolayers shielded layers, amplify out internal layer and outer shield layer, i.e.,
The design concept of the invention of double layer screen layer structure.This new design concept of the invention makes mutually insulated object by the electrification of the past
Cooling water pipe and the single-layer shield layer of ground connection become nowadays with electrification cooling water pipe have same potential internal layer shielded layer and
The outer shield layer of ground connection.
Description of the drawings
Fig. 1 is that the present invention is based on the construction profile figures of ITER Glow Discharge Cleaning systems.
Fig. 2 is that the present invention carries out sectility displaying internal structure chart on the basis of Fig. 1 to internal layer and outer shield layer.
Wherein：1. internal layer shielded layer；2. outer shield layer；3. charging cooling water pipe；4. ceramic ring.
Specific implementation mode
The present invention will be further described for son in the following with reference to the drawings and specific embodiments：
In the known system glow discharge operating mode, i.e.,：Internal layer shielded layer (1) and the voltage for charging cooling water pipe (3) are about
1.5kV, environmental gas is based on helium, about 15 unit Pascals of air pressure, and electrification cooling water pipe (3) inlet water temperature is about 240
Degree.According to Paschen's law and corresponding experiment, consider that band electrical inner layer shielded layer (1) does not puncture with ground connection outer shield layer (2),
Can show between internal layer (1) and outer shield layer (2) that effective clearance insulation distance section is 5mm to 20mm, and actual implementation away from
From for 12mm.
Currently, the electrification cooling water pipe (3) that the system is used, which is helical form stainless steel, charges cooling water pipe.In view of water pipe
The particularity of structure, outer diameter 90mm, internal diameter are that the hollow tubular stainless steel material of 80mm is transported in herein as internal layer shielding
Layer (1).Helical form electrification cooling water pipe (3) is can be used as using another benefit of this hollow tubular internal layer shielded layer (1)
Support.And the internal layer shielded layer (1) is that end absolute contact is connect with the connection type of helical form electrification cooling water pipe (3), is protected
While having demonstrate,proved the current potential consistency of the two, the generation of electric spark phenomenon is avoided.
In order to ensure the uniformity in gap, band electrical inner layer shielded layer (1) is avoided to shock by electricity with ground connection outer shield layer (2)
It wears or point discharge, outer shield layer (2) uses the different hollow tubular knot of size identical as internal layer shielded layer (1) structure
Structure, i.e. outer diameter are 124mm, and internal diameter is the hollow pipe of 114mm, and the material of outer shield layer (2) is based on stainless steel material.And
By the ceramic ring (4) that main material is 99%Al2O3 as support between ectonexine shielded layer (1,2).Ceramic ring (4) thickness is
12mm, i.e. gap insulation distance are set to 12mm.
The present invention is based on conventional monolayers shielded layers, amplify out internal layer (1) and outer shield layer (2), i.e. double layer screen layer knot
The design concept of the invention of structure.This new design concept of the invention make mutually insulated object by the past electrification cooling water pipe with connect
The single-layer shield layer on ground becomes the internal layer shielded layer (1) and ground connection nowadays with electrification cooling water pipe (3) with same potential
Outer shield layer (2).
Double layer screen layer structure by：Internal layer shielded layer (1), outer shield layer (2), ceramic ring (4) and electrification cooling water pipe
(3) it forms.
Internal layer shielded layer (1)：
The shielded layer (1) is the band shield layer of neat appearance, and with electrification cooling water pipe (3) current potential having the same.
The purpose is to：
First, the requirement of neat appearance is to shield the topology layout for charging cooling water pipe (3) complexity by internal layer
Layer (1) intervention so that charged layer Regularization simple in structure, convenient for ensureing the uniformity in gap between charged layer and ground plane, this
The guarantee of kind gap uniformity also improves the secure safety of gap insulation, avoids point discharge and because of the big model of clearance distance
Enclose the possibility that variation causes electrical breakdown.
Secondly, band electrical inner layer shielded layer (1) seemingly contacts non-contact cause with idiostatic cooling water pipe (3) in order to prevent
The situation of electricity sparking between the two, the connection type used between internal layer shielded layer (1) and electrification cooling water pipe (3) is end absolute contact
Connection.
Outer shield layer (2)：
Shielded layer (2) construction profile is similar with internal layer shielded layer (1), is ground shield.
First, outer shield layer (2) has similar construction profile with internal layer shielding box (1), this is interior in order to meet
The uniformity in gap between outer two-layer screen layer avoids point discharge and because clearance distance wide variation causes electrical breakdown
May, to ensure the secure safety of interval insulation.
Secondly, distance should be maintained in effective insulation distance interval range between internal layer (1) and outer shield layer (2), such as：
It should be fallen in 5mm to the areas 20mm for the internal layer (1) of ITER Glow Discharge Cleaning systems and the spacing value of outer shield floor (2)
Between in range, and ceramic insulating material should be utilized, such as：Ceramic ring (4), is mutually supported, to ensure structure and gap
The stability of distance, to ensure the secure safety of interval insulation indirectly.
In terms of material selection, outer shield layer (2) should be using stainless steel as main material.Internal layer shielding box (1) and electrification are cold
But water pipe (3) should be with stainless steel, and copper or copper alloy are main material.Ceramic ring (4) should use 99%Al2O3 for main material.
Claims (6)
1. a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe, is characterized in that：Outer shield including tubulose
The internal layer shielded layer (1) for being similarly tubulose is arranged, in internal layer shielded layer (1) and outer layer screen in layer (2) in outer layer shielded layer (2)
Cover be arranged between layer (2) several for isolation ceramic ring (4), setting and charge cooling water pipe in internal layer shielded layer (1)
(3)。
2. a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe as described in claim 1, is characterized in that：It is interior
Layer shielded layer (1) has same potential with electrification cooling water pipe (3), and end is connected using absolute contact.
3. a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe as described in claim 1, it is characterised in that：
Specific effective clearance insulation distance ranging from 5mm to 20mm between internal layer shielded layer (1) and outer shield layer (2).
4. a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe as described in claim 1, it is characterised in that：
The material of outer shield layer (2) is stainless steel.
5. a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe as described in claim 1, it is characterised in that：
The material of internal layer shielded layer (1) and electrification cooling water pipe (3) is stainless steel, copper or copper alloy.
6. a kind of double layer screen layer structure being suitable for shielding electrification cooling water pipe as described in claim 1, it is characterised in that：
The main material of ceramic ring (4) is 99%Al between internal layer shielded layer (1) and outer shield layer (2)2O3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721831192.6U CN207718826U (en) | 2017-12-25 | 2017-12-25 | Suitable for shielding the double layer screen layer structure of electrification cooling water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721831192.6U CN207718826U (en) | 2017-12-25 | 2017-12-25 | Suitable for shielding the double layer screen layer structure of electrification cooling water pipe |
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| Publication Number | Publication Date |
|---|---|
| CN207718826U true CN207718826U (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721831192.6U Active CN207718826U (en) | 2017-12-25 | 2017-12-25 | Suitable for shielding the double layer screen layer structure of electrification cooling water pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961857A (en) * | 2017-12-25 | 2019-07-02 | 核工业西南物理研究院 | Suitable for shielding the double layer screen layer structure of electrification cooling water pipe |
| CN116723688A (en) * | 2023-08-07 | 2023-09-08 | 陕西汇天广科信息科技有限公司 | Multifunctional integrated circuit sensor |
-
2017
- 2017-12-25 CN CN201721831192.6U patent/CN207718826U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109961857A (en) * | 2017-12-25 | 2019-07-02 | 核工业西南物理研究院 | Suitable for shielding the double layer screen layer structure of electrification cooling water pipe |
| CN109961857B (en) * | 2017-12-25 | 2024-02-09 | 核工业西南物理研究院 | Double-layer shielding layer structure suitable for shielding electrified cooling water pipe |
| CN116723688A (en) * | 2023-08-07 | 2023-09-08 | 陕西汇天广科信息科技有限公司 | Multifunctional integrated circuit sensor |
| CN116723688B (en) * | 2023-08-07 | 2024-03-08 | 中航星(西安)智能***有限公司 | Multifunctional integrated circuit sensor |
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