CN204045216U - Open-celled structure on reactor pressure vessel convex head - Google Patents
Open-celled structure on reactor pressure vessel convex head Download PDFInfo
- Publication number
- CN204045216U CN204045216U CN201420536803.4U CN201420536803U CN204045216U CN 204045216 U CN204045216 U CN 204045216U CN 201420536803 U CN201420536803 U CN 201420536803U CN 204045216 U CN204045216 U CN 204045216U
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- CN
- China
- Prior art keywords
- hole
- section
- interference fit
- seam section
- degree
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses the open-celled structure on kind of reactor pressure vessel convex head, be divided into 3 sections, be respectively seam section through hole, middle interference fit section through hole, lower seam section through hole, the lower surface diameter of upper seam section through hole and the upper surface diameter of lower seam section through hole are greater than the diameter of middle interference fit section through hole, this can reduce the difficulty of processing of perforate, the machining precision of interference fit section through hole in the middle of improving.
Description
Technical field
The utility model belongs to reactor pressure vessel convex head technical field, is specially the open-celled structure on reactor pressure vessel convex head.
Background technology
Reactor pressure vessel convex head (comprising low head) needs usually for reactor control and measurement assembly etc. provides the passage entered in heap.Therefore should carry out corresponding perforate when convex head designs, and penetration piece is set, to form above-mentioned passage.
Penetration piece and convex head need to carry out encapsulation process, and this is higher to the requirement on machining accuracy in hole, need penetration piece outer wall and through-hole wall compact siro spinning technology.Traditional open-celled structure on existing convex head is through-hole form, and namely overall length scope interior diameter is consistent.The upper and lower end face of through hole and the axis out of plumb in hole, and aperture bottom is also required to be the Ni-based pre-heap of partial-penetration weld preparation, this makes troubles to the processing in hole.In addition, when interference fit, the discontinuity that penetration piece is circumferentially gone up, is unfavorable for the verticality ensureing penetration piece.
Utility model content
The utility model design is intended to design a kind of new open-celled structure, solves the problem of circumferential unbalance stress during difficulty of processing and the penetration piece interference fit of perforate.
Implementation of the present utility model is as follows: the open-celled structure on reactor pressure vessel convex head, comprise the penetration piece running through reactor pressure vessel convex head and through hole is installed, penetration piece installation through hole is through hole straight down, penetration piece is installed through hole and is comprised the upper seam section through hole be communicated with successively from top to bottom, middle interference fit section through hole, lower seam section through hole, Ni-based pre-heap through hole, wherein, middle interference fit section through hole is the consistent through hole of overall length scope interior diameter, when the non-central part open of convex end socket: upper surface and the above-below direction axis of middle interference fit section through hole of upper seam section through hole become to be less than the angle of 90 degree, the lower surface of upper seam section through hole becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole, the upper surface of lower seam section through hole becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole, lower surface and the above-below direction axis of middle interference fit section through hole of lower seam section through hole become to be less than the angle of 90 degree, the lower surface diameter of upper seam section through hole and the upper surface diameter of lower seam section through hole are greater than the diameter of middle interference fit section through hole, when the core perforate of convex end socket: the upper surface of upper seam section through hole becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole, the lower surface of upper seam section through hole becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole, the upper surface of lower seam section through hole becomes the angle of 90 degree, the lower surface of lower seam section through hole to become the angle of 90 degree with the above-below direction axis of middle interference fit section through hole with the above-below direction axis of middle interference fit section through hole.
Design concept of the present utility model is: the open-celled structure on reactor pressure vessel convex head is divided into 3 sections, be respectively seam section through hole, middle interference fit section through hole, lower seam section through hole, the lower surface diameter of upper seam section through hole and the upper surface diameter of lower seam section through hole are greater than the diameter of middle interference fit section through hole, this can reduce the difficulty of processing of perforate, the machining precision of interference fit section through hole in the middle of improving.In addition, the upper and lower end face of middle interference fit section through hole is perpendicular to bore axis, and this can ensure that penetration piece installs rear circumferential stressed homogeneity on convex head.Middle interference fit section through hole is the mating part of penetration piece and convex head.
End socket due to reactor pressure vessel is convex head, therefore, from convex head during non-summit perforate, following situation can be caused: upper surface and the above-below direction axis of middle interference fit section through hole of upper seam section through hole become to be less than the angle of 90 degree, the lower surface of upper seam section through hole becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole, the upper surface of lower seam section through hole becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole, lower surface and the above-below direction axis of middle interference fit section through hole of lower seam section through hole become to be less than the angle of 90 degree.
Ni-based pre-heap through-hole wall is provided with Ni-based pre-stack layers, and lower surface and the above-below direction axis of middle interference fit section through hole of Ni-based pre-heap through hole become to be less than the angle of 90 degree.Be convenient to form uniform Ni-based pre-stack layers.
The lower surface of upper seam section through hole lower than upper surface minimum point 0.5 mm to 1mm of upper seam section through hole so that the processing of upper seam section through hole.
The upper surface of lower seam section through hole higher than peak 0.5 mm to 1mm of Ni-based pre-heap through hole so that the processing of lower seam section through hole.
The square section minimum dimension of Ni-based pre-heap through hole equals the upper surface cross sectional dimensions of lower seam section through hole, adding the Ni-based pre-heap through hole after Ni-based pre-stack layers is the Ni-based pre-heap through hole of liner, and the square section minimum dimension of the Ni-based pre-heap through hole of liner equals the upper surface cross sectional dimensions of lower seam section through hole.
The utility model has the advantage of: the difficulty of processing that can reduce perforate, the machining precision of interference fit section through hole in the middle of improving.In addition, the upper and lower end face of middle interference fit section through hole is perpendicular to bore axis, and this can ensure that penetration piece installs rear circumferential stressed homogeneity on convex head.
Accompanying drawing explanation
Fig. 1 is cross-sectional of the present utility model.
Label in figure is expressed as: 1-reactor pressure vessel convex head; 2-penetration piece installs through hole; 3-upper seam section through hole; Interference fit section through hole in the middle of 4-; Seam section through hole under 5-; The Ni-based pre-heap through hole of 6-.
Embodiment
Embodiment one
As shown in Figure 1.
Open-celled structure on reactor pressure vessel convex head, comprise the penetration piece running through reactor pressure vessel convex head 1 and through hole 2 is installed, penetration piece installation through hole 2 is through holes straight down, it is characterized in that: penetration piece is installed through hole 2 and comprised the upper seam section through hole 3 be communicated with successively from top to bottom, middle interference fit section through hole 4, lower seam section through hole 5, Ni-based pre-heap through hole 6, wherein, middle interference fit section through hole 4 is the consistent through hole of overall length scope interior diameter, when the non-central part open of convex end socket: upper surface and the above-below direction axis of middle interference fit section through hole 4 of upper seam section through hole 3 become to be less than the angle of 90 degree, the lower surface of upper seam section through hole 3 becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4, the upper surface of lower seam section through hole 5 becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4, lower surface and the above-below direction axis of middle interference fit section through hole 4 of lower seam section through hole 5 become to be less than the angle of 90 degree, the lower surface diameter of upper seam section through hole 3 and the upper surface diameter of lower seam section through hole 5 are greater than the diameter of middle interference fit section through hole 4.When the core perforate of convex end socket: the upper surface of upper seam section through hole 3 becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4, the lower surface of upper seam section through hole 3 becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4, the upper surface of lower seam section through hole 5 becomes the angle of 90 degree, the lower surface of lower seam section through hole 5 to become the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4 with the above-below direction axis of middle interference fit section through hole 4.
Design concept of the present utility model is: the open-celled structure on reactor pressure vessel convex head is divided into 3 sections, be respectively seam section through hole 3, middle interference fit section through hole 4, lower seam section through hole 5, the lower surface diameter of upper seam section through hole 3 and the upper surface diameter of lower seam section through hole 5 are greater than the diameter of middle interference fit section through hole 4, this can reduce the difficulty of processing of perforate, the machining precision of interference fit section through hole 4 in the middle of improving.In addition, the upper and lower end face of middle interference fit section through hole 4 is perpendicular to bore axis, and this can ensure that penetration piece installs the Later Zhou Dynasty, one of the Five Dynasties to stressed homogeneity on convex head.Middle interference fit section through hole 4 is the mating part of penetration piece and convex head.
End socket due to reactor pressure vessel is convex head 1, therefore, from convex head 1 during non-summit perforate, following situation can be caused: upper surface and the above-below direction axis of middle interference fit section through hole 4 of upper seam section through hole 3 become to be less than the angle of 90 degree, the lower surface of upper seam section through hole 3 becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4, the upper surface of lower seam section through hole 5 becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole 4, lower surface and the above-below direction axis of middle interference fit section through hole 4 of lower seam section through hole 5 become to be less than the angle of 90 degree.
Preferably, the lower surface of upper seam section through hole 3 lower than upper surface minimum point 0.5 mm to 1mm of upper seam section through hole 3 so that the processing of upper seam section through hole.
The upper surface of lower seam section through hole higher than peak 0.5 mm to 1mm of Ni-based pre-heap through hole so that the processing of lower seam section through hole.
The square section minimum dimension of Ni-based pre-heap through hole 6 equals the upper surface cross sectional dimensions of lower seam section through hole 5, add the Ni-based pre-heap through hole after Ni-based pre-stack layers 6 for the Ni-based pre-heap through hole of liner, the square section minimum dimension of the Ni-based pre-heap through hole of liner equals the upper surface cross sectional dimensions of lower seam section through hole 5.
The utility model has the advantage of: the difficulty of processing that can reduce perforate, the machining precision of interference fit section through hole 4 in the middle of improving.In addition, the upper and lower end face of middle interference fit section through hole 4 is perpendicular to bore axis, and this can ensure that penetration piece installs rear circumferential stressed homogeneity on convex head.
As mentioned above, then well the utility model can be realized.
Claims (5)
1. the open-celled structure on reactor pressure vessel convex head, comprise the penetration piece running through reactor pressure vessel convex head (1) and through hole (2) is installed, penetration piece installation through hole (2) is through hole straight down, it is characterized in that: penetration piece is installed through hole (2) and comprised the upper seam section through hole (3) be communicated with successively from top to bottom, middle interference fit section through hole (4), lower seam section through hole (5), Ni-based pre-heap through hole (6), wherein, middle interference fit section through hole (4) is the consistent through hole of overall length scope interior diameter; When the non-central part open of convex end socket: upper surface and the above-below direction axis of middle interference fit section through hole (4) of upper seam section through hole (3) become to be less than the angle of 90 degree, the lower surface of upper seam section through hole (3) becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole (4), the upper surface of lower seam section through hole (5) becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole (4), lower surface and the above-below direction axis of middle interference fit section through hole (4) of lower seam section through hole (5) become to be less than the angle of 90 degree; The lower surface diameter of upper seam section through hole (3) and the upper surface diameter of lower seam section through hole (5) are greater than the diameter of middle interference fit section through hole (4); When the core perforate of convex end socket: the upper surface of upper seam section through hole (3) becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole (4), the lower surface of upper seam section through hole (3) becomes the angle of 90 degree with the above-below direction axis of middle interference fit section through hole (4), the upper surface of lower seam section through hole (5) becomes the angle of 90 degree, the lower surface of lower seam section through hole (5) to become the angle of 90 degree with the above-below direction axis of middle interference fit section through hole (4) with the above-below direction axis of middle interference fit section through hole (4).
2. the open-celled structure on wanting described in 1 reactor pressure vessel convex head according to right, it is characterized in that: Ni-based pre-heap through hole (6) inwall is provided with Ni-based pre-stack layers, lower surface and the above-below direction axis of middle interference fit section through hole (4) of Ni-based pre-heap through hole (6) become to be less than the angle of 90 degree.
3. the open-celled structure on wanting described in 1 reactor pressure vessel convex head according to right, is characterized in that: the lower surface of upper seam section through hole (3) is lower than upper surface minimum point 0.5 mm to 1mm of upper seam section through hole (3).
4. the open-celled structure on wanting described in 2 reactor pressure vessel convex head according to right, is characterized in that: the upper surface of lower seam section through hole (5) is higher than peak 0.5 mm to 1mm of Ni-based pre-heap through hole (6).
5. the open-celled structure on wanting described in 4 reactor pressure vessel convex head according to right, it is characterized in that: the square section minimum dimension of Ni-based pre-heap through hole (6) equals the upper surface cross sectional dimensions of lower seam section through hole (5), add the Ni-based pre-heap through hole (6) after Ni-based pre-stack layers for the Ni-based pre-heap through hole of liner, the square section minimum dimension of the Ni-based pre-heap through hole of liner equals the upper surface cross sectional dimensions of lower seam section through hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536803.4U CN204045216U (en) | 2014-09-18 | 2014-09-18 | Open-celled structure on reactor pressure vessel convex head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536803.4U CN204045216U (en) | 2014-09-18 | 2014-09-18 | Open-celled structure on reactor pressure vessel convex head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045216U true CN204045216U (en) | 2014-12-24 |
Family
ID=52245857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420536803.4U Withdrawn - After Issue CN204045216U (en) | 2014-09-18 | 2014-09-18 | Open-celled structure on reactor pressure vessel convex head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240773A (en) * | 2014-09-18 | 2014-12-24 | 中国核动力研究设计院 | Perforating structure on reactor pressure vessel convex head |
-
2014
- 2014-09-18 CN CN201420536803.4U patent/CN204045216U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240773A (en) * | 2014-09-18 | 2014-12-24 | 中国核动力研究设计院 | Perforating structure on reactor pressure vessel convex head |
| CN104240773B (en) * | 2014-09-18 | 2017-03-08 | 中国核动力研究设计院 | Open-celled structure on reactor pressure vessel convex head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |