CN203024130U - Straight pipe section bearing plate for steam generator heat conduction pipe - Google Patents
Straight pipe section bearing plate for steam generator heat conduction pipe Download PDFInfo
- Publication number
- CN203024130U CN203024130U CN2012206862662U CN201220686266U CN203024130U CN 203024130 U CN203024130 U CN 203024130U CN 2012206862662 U CN2012206862662 U CN 2012206862662U CN 201220686266 U CN201220686266 U CN 201220686266U CN 203024130 U CN203024130 U CN 203024130U
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- CN
- China
- Prior art keywords
- support plate
- transfer pipe
- steam generator
- straight length
- pipe straight
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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.)
- Withdrawn - After Issue
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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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of bearing structures for heat conduction pipes of steam generators in pressurized water reactor nuclear power plants and in particular discloses a straight pipe section bearing plate for a steam generator heat conduction pipe. The bearing plate is formed by expanding and combining a plurality of base hole units A and a plurality of base hole units B on the same plane. The base hole units A are of framework structures, bearing points are arranged on the framework structures, an upper layer of framework structure and a lower layer framework structure are arranged in a staggered mode, and the bearing points on the two layers of bearing plate framework structure are evenly distributed along the peripheral direction of a straight pipe section of the heat conduction pipe. The base hole units B are of structures similar to the structures of the base hole units A, solid plate structures are only arranged in the framework structures of the base hole units A, and fixed-distance screw holes for bearing the bearing plates are arranged on the solid plate structures. The bearing plate can be applied to a vertical steam generator, a reverse-U-shaped pipe steam generator and a natural circulation steam generator in the pressurized water reactor nuclear power plant. The bearing plate is good in integrity, high in processing accuracy, large in circulation area, excellent in main size variability and simple to install.
Description
Technical field
The utility model belongs to PWR nuclear power plant steam generator heat-transfer pipe supporting structure technical field, is specifically related to a kind of steam generator heat-transfer pipe straight length support plate.
Background technology
Vertical, inverted-loop tube, natural circulation steam generator (hereinafter to be referred as SG) are the main flow SG patterns that domestic nuclear power plant adopts.The heat-transfer pipe support plate is U-shaped pipe straight length to be provided the vitals of supporting, and the quality of its structural design not only is related to fretting, stress corrosion, the heat transfer conditions of pipe, also directly has influence on the height of SG circulating ratio.
Using at present more widely, plum blossom cellular type support plate shows not all roses on above-mentioned institute summary point.External Babcock ﹠amp; Wilcox company and Westinghouse Electric have proposed the grid type pipe support, and be similar on structure, is all to be installed by the support strip interlocking of One's name is legion to form grid bar pipe support assembly.Compare plum blossom cellular type support plate, promote many on property indices.
Yet there is limitation in organization plan that offshore company is carried aspect globality, precision, key dimension changeability, and has the large shortcoming of installation workload.
Summary of the invention
The purpose of this utility model is to provide a kind of steam generator heat-transfer pipe straight length support plate, can realize the supporting to the steam generator heat-transfer pipe straight length, and this support plate good integrity, machining accuracy is high, circulation area is large, the key dimension changeability is good, install simple.
the technical solution of the utility model is as follows: a kind of steam generator heat-transfer pipe straight length support plate, this support plate comprises basic pass unit A and basic pass unit B, whole support plate is expanded in same plane by several basic passes unit A and several basic pass unit B and is combined, wherein, basic pass unit A is frame structure, and be provided with the supporting-point to the supporting of heat-transfer pipe straight length on this frame structure, and make when the two-layer support plate that is staggeredly placed is to same heat-transfer pipe straight length supporting up and down, supporting-point in two-layer support plate frame structure circumferentially evenly distributes along the heat-transfer pipe straight length, basic pass unit B only has the solid plate structure, and have the spacing screw hole that can support this support plate in this solid plate structure with pass unit A structure is similar substantially in the frame structure of basic pass unit A.
Basic pass unit A in described support plate is notch cuttype class rectangular frame structure, and the distance in such rectangular frame structure between relative ladder rib place, long limit fillet is complementary with heat-transfer pipe straight length outer diameter, and make when the two-layer support plate that is staggeredly placed is to same heat-transfer pipe straight length supporting up and down, four ladder rib place fillets are to 90 ° of four supporting-point each intervals of this heat-transfer pipe straight length, and namely four supporting-points circumferentially evenly distribute.
The width D of described basic pass unit category-A rectangular frame structure is got minimum of a value in the situation that satisfy requirement of strength.
Have the circular spacing screw hole that diameter is M in described basic pass unit B on solid plate, and the lower end of spacing screw hole has slightly larger in diameter in the cannelure of M, the spacing screw hole of formation ladder cylindrical structure.
Described spacing screw hole diameter M is 18mm
In described support plate, the width D of basic pass unit category-A rectangular frame structure is 3mm.
The thickness H0 of described support plate is 30mm.
A kind of mounting structure of steam generator heat-transfer pipe straight length support plate, this mounting structure comprises the some long spacing screw rods that are fixed on tube sheet, spacing screw hole in lower floor's support plate is positioned on long spacing screw rod, and be connected with long spacing screw rod by short spacing screw rod, lower floor's support plate is fixed; Upper strata support plate and the lower floor's support plate certain angle that staggers is installed in parallel in the top of lower floor's support plate, and at a distance of being highly H1.
Described upper strata support plate and the lower floor's support plate angle of 60 ° or 90 ° that staggers, and be installed in parallel in the top of lower floor's support plate, and at a distance of being highly H1.
The two-layer support plate in described up and down height H 1 apart is 70mm.
Remarkable result of the present utility model is: a kind of steam generator heat-transfer pipe straight length support plate described in the utility model can be applicable to that PWR nuclear power plant is vertical, inverted-loop tube, natural circulation steam generator, and this support plate good integrity, machining accuracy is high, circulation area is large, the key dimension changeability is good, it is simple to install.
Description of drawings
Fig. 1 is a kind of steam generator heat-transfer pipe straight length support plate partial top view described in the utility model;
Fig. 2 is a kind of steam generator heat-transfer pipe straight length support plate described in the utility model partial perspective view;
Fig. 3 is I place partial enlarged drawing in Fig. 1;
Fig. 4 is II place partial enlarged drawing in Fig. 1;
Fig. 5 is a kind of steam generator heat-transfer pipe straight length support plate mounting structure schematic diagram described in the utility model;
Fig. 6 is I place partial enlarged drawing in Fig. 5;
In figure: 1, heat-transfer pipe straight length; 2, support plate; 3, spacing screw hole; 4, tube sheet; 5, grow the spacing screw rod; 6, short spacing screw rod.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
as Fig. 1 ~ shown in Figure 4, a kind of steam generator heat-transfer pipe straight length support plate, this support plate 2 comprises basic pass unit A and basic pass unit B, whole support plate 2 is expanded in same plane by several basic passes unit A and several basic pass unit B and is combined, wherein, basic pass unit A is notch cuttype class rectangular frame structure, and the distance in such rectangular frame structure between relative ladder rib place, long limit fillet is complementary with heat-transfer pipe straight length 1 outer diameter, and make when 2 pairs of same heat-transfer pipe straight lengths 1 of the two-layer support plate that is staggeredly placed support up and down, four ladder rib place fillets are to 90 ° of four supporting-point each intervals of this heat-transfer pipe straight length 1, namely four supporting-points circumferentially evenly distribute, the width D of basic pass unit category-A rectangular frame structure is got minimum of a value as far as possible in the situation that satisfy requirement of strength, and for example, the width D of pass unit category-A rectangular frame structure is 3mm substantially, basic pass unit B and basic pass unit category-A are seemingly, only be divided into the solid plate structure in the middle part of such rectangular frame structure, and having diameter on this solid plate is the circular spacing screw hole 3 of M, for example M is 18mm, and the lower end of spacing screw hole 3 has slightly larger in diameter in the cannelure of M, forms the spacing screw hole 3 of ladder cylindrical structure.
as Fig. 5, shown in Figure 6, a kind of mounting structure of steam generator heat-transfer pipe straight length support plate, comprise that some are threaded connection the long spacing screw rod 5 that is fixed on tube sheet 4, spacing screw hole 3 in lower floor's support plate is positioned on long spacing screw rod 5, and be threaded with long spacing screw rod 5 by short spacing screw rod 6, lower floor's support plate 2 is fixing, upper strata support plate and the lower floor's support plate certain angle that staggers, for example 60 ° or 90 °, be installed in parallel in the top of lower floor's support plate, and be highly apart H1, the thickness of each support plate 2 is H0, for example, the height H 1 of the two-layer support plate 2 in up and down is 70mm, the thickness of each support plate 2 is 30mm.
Claims (10)
1. steam generator heat-transfer pipe straight length support plate, it is characterized in that: this support plate (2) comprises basic pass unit A and basic pass unit B, whole support plate (2) is expanded in same plane by several basic passes unit A and several basic pass unit B and is combined, wherein, basic pass unit A is frame structure, and be provided with the supporting-point to heat-transfer pipe straight length (1) supporting on this frame structure, and make when the two-layer support plate that is staggeredly placed (2) supports same heat-transfer pipe straight length (1) up and down, supporting-point in two-layer support plate (2) frame structure circumferentially evenly distributes along heat-transfer pipe straight length (1), basic pass unit B only has the solid plate structure, and have the spacing screw hole (3) that can support this support plate (2) in this solid plate structure with pass unit A structure is similar substantially in the frame structure of basic pass unit A.
2. a kind of steam generator heat-transfer pipe straight length support plate according to claim 1, it is characterized in that: the basic pass unit A in described support plate (2) is notch cuttype class rectangular frame structure, and the distance in such rectangular frame structure between relative ladder rib place, long limit fillet is complementary with heat-transfer pipe straight length (1) outer diameter, and make when the two-layer support plate that is staggeredly placed (2) supports same heat-transfer pipe straight length (1) up and down, four ladder rib place fillets are to 90 ° of four supporting-point each intervals of this heat-transfer pipe straight length (1), namely four supporting-points circumferentially evenly distribute.
3. a kind of steam generator heat-transfer pipe straight length support plate according to claim 1 is characterized in that: the width D of described basic pass unit category-A rectangular frame structure is got minimum of a value in the situation that satisfy requirement of strength.
4. a kind of steam generator heat-transfer pipe straight length support plate according to claim 1, it is characterized in that: have the circular spacing screw hole (3) that diameter is M in described basic pass unit B on solid plate, and the lower end of spacing screw hole (3) has slightly larger in diameter in the cannelure of M, forms the spacing screw hole (3) of ladder cylindrical structure.
5. a kind of steam generator heat-transfer pipe straight length support plate according to claim 4, it is characterized in that: described spacing screw hole (3) diameter M is 18mm
6. a kind of steam generator heat-transfer pipe straight length support plate according to claim 3 is characterized in that: in described support plate (2), the width D of basic pass unit category-A rectangular frame structure is 3mm.
7. according to claim 1 ~ 6 described any one steam generator heat-transfer pipe straight length support plates, it is characterized in that: the thickness H0 of described support plate (2) is 30mm.
8. the mounting structure of a steam generator heat-transfer pipe straight length support plate as claimed in claim 1, it is characterized in that: this mounting structure comprises the some long spacing screw rods (5) that are fixed on tube sheet (4), spacing screw hole (3) in lower floor's support plate is positioned on long spacing screw rod (5), and be connected with long spacing screw rod (5) by short spacing screw rod (6), lower floor's support plate (2) is fixing; Upper strata support plate and the lower floor's support plate certain angle that staggers is installed in parallel in the top of lower floor's support plate, and at a distance of being highly H1.
9. the mounting structure of a kind of steam generator heat-transfer pipe straight length support plate according to claim 8, it is characterized in that: the stagger angle of 60 ° or 90 ° of described upper strata support plate and lower floor's support plate, and be installed in parallel in the top of lower floor's support plate, and at a distance of being highly H1.
10. the mounting structure of according to claim 8 or 9 described a kind of steam generator heat-transfer pipe straight length support plates is characterized in that: the two-layer support plate in described up and down (2) height H 1 apart is 70mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206862662U CN203024130U (en) | 2012-12-13 | 2012-12-13 | Straight pipe section bearing plate for steam generator heat conduction pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206862662U CN203024130U (en) | 2012-12-13 | 2012-12-13 | Straight pipe section bearing plate for steam generator heat conduction pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024130U true CN203024130U (en) | 2013-06-26 |
Family
ID=48648112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206862662U Withdrawn - After Issue CN203024130U (en) | 2012-12-13 | 2012-12-13 | Straight pipe section bearing plate for steam generator heat conduction pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203024130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868050B (en) * | 2012-12-13 | 2015-09-30 | 中国核动力研究设计院 | A kind of steam generator heat-transfer pipe straight length support plate |
| CN105917166A (en) * | 2013-12-26 | 2016-08-31 | 纽斯高动力有限责任公司 | Steam generator tube support |
| US12062461B2 (en) | 2021-02-04 | 2024-08-13 | Nuscale Power, Llc | Supports with integrated sensors for nuclear reactor steam generators, and associated systems and methods |
-
2012
- 2012-12-13 CN CN2012206862662U patent/CN203024130U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868050B (en) * | 2012-12-13 | 2015-09-30 | 中国核动力研究设计院 | A kind of steam generator heat-transfer pipe straight length support plate |
| CN105917166A (en) * | 2013-12-26 | 2016-08-31 | 纽斯高动力有限责任公司 | Steam generator tube support |
| CN105917166B (en) * | 2013-12-26 | 2018-02-06 | 纽斯高动力有限责任公司 | Steam generator support member |
| US9897234B2 (en) | 2013-12-26 | 2018-02-20 | Nuscale Power, Llc | Steam generator tube support |
| US12062461B2 (en) | 2021-02-04 | 2024-08-13 | Nuscale Power, Llc | Supports with integrated sensors for nuclear reactor steam generators, and associated systems and methods |
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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: 20130626 Effective date of abandoning: 20150930 |
|
| RGAV | Abandon patent right to avoid regrant |