CN103398220A - Nuclear power station nuclear island high anti-seismic solid-bottom tray - Google Patents
Nuclear power station nuclear island high anti-seismic solid-bottom tray Download PDFInfo
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- CN103398220A CN103398220A CN2013102886830A CN201310288683A CN103398220A CN 103398220 A CN103398220 A CN 103398220A CN 2013102886830 A CN2013102886830 A CN 2013102886830A CN 201310288683 A CN201310288683 A CN 201310288683A CN 103398220 A CN103398220 A CN 103398220A
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Abstract
The invention belongs to mechanical devices bearing aerial cables of a nuclear power station nuclear island, and particularly relates to a nuclear power station nuclear island high anti-seismic solid-bottom tray. The nuclear power station nuclear island high anti-seismic solid-bottom tray structurally comprises two ladder sides and a baseboard manufactured with a whole sheet material, through ribs extending in the longitudinal direction are respectively arranged on the two sides of the baseboard, and a plurality of annular reinforcing ribs are sequentially arranged on the baseboard in the longitudinal direction. Each ladder side is of an I-shaped structure, the two horizontal ends of the upper portion of each ladder side are in an arc shape, and the middle of the upper portion of each ladder is of a linear section structure. The lower portion of each ladder side is connected with the baseboard through an inverted-U-shaped arc structure. The nuclear power station nuclear island high anti-seismic solid-bottom tray does not need welding process, avoids environmental pollution caused by a welding technique, improves anti-corrosion capability of a product, and reduces the influence to stress of a bridge sheet material of welding; meanwhile, due to the fact that the annular reinforcing ribs and the longitudinal through ribs are arranged on the baseboard, integrated bearing capacity and bending-resisting performance of the bridge are improved, and the requirement of bearing cables in the situation that the thickness of a bridge profile is not increased is met.
Description
Technical field
The invention belongs to the mechanical device of nuclear power plant's nuclear island regions carry overhead cable, be specifically related to a kind of nuclear island of nuclear power station high resistance ram-jolt bottom tray.
Background technique
The cable testing bridge system is the important product of a class in manufacturing industry, is to be used for the main equipment of standard, protection cable and electric transmission line safety in each infrastructure project.The structural design of its terraced limit of pallet with holes, base plate has directly determined the overall performance of crane span structure (comprising the aspects such as bearing capacity, shock resistance, working life, outward appearance).
Traditional tray structure old-fashioned with holes is that two terraced limits and base plate form at present, means of fixation commonly used between two terraced limits and base plate has riveted joint, grafting or welding, because the intensity of riveted joint and plug in structure carrying is limited, therefore two terraced limits and base plate adopt the mode of welding to fix more.In the structure on old-fashioned terraced limit, top is circular arc crimp or right angle side, is the right-angle folding crimp below; Base plate mostly is a steel plate, and the horizontal circular arc muscle of compacting or square muscle etc. are to gain in strength on steel plate.
There is following defect in old-fashioned pallet with holes:
1) terraced limit and base plate solder joint cause the crane span structure total bearing capacity to descend, and less stable only has the thickness by increasing crane span structure sheet material to improve its bearing capacity and stability.This mode not only serious waste steel resources, do not meet the requirement of national energy-saving consumption reduction, and, due to the increase that increases plate material thickness and cause the crane span structure deadweight, increased simultaneously the deadweight of supporting environment, affect the antidetonation level of crane span structure system.
2) welding procedure of crane span structure, can discharge a large amount of CO when crane span structure welds
2Deng harmful gas, environment is caused certain pollution, simultaneously,, because of the existence of welding procedure, will inevitably there is the sour regurgitation phenomenon of zinc-plated rear part, cause the decline of the anticorrosion grade of soldering point, reduce its working life.
3) when cabling, the hidden danger that there is the scratch cable at the upper burr of beating of curved edges (or right angle side) or cusped edge place, be unfavorable for the carrying out of on-site cable cable laying operation.
4) base plate and terraced limit are artificial welding, its overall appearance is subjected to artificial factors, work efficiency is not high, and its overall performance Safety performance is not high, at crane span structure in the workshop of vibrations or when the foreign object strike that runs into or earthquake disaster, be easy to from solder joint be distorted, crack conditions, Safety performance is not high, anti-seismic performance is lower.
5) base plate is necessary for and rides over right angle side part welding under terraced limit, and this has just increased the crane span structure cost to a certain extent.
Summary of the invention
The object of the present invention is to provide a kind of high strength, high corrosion-resistant nuclear island of nuclear power station high resistance ram-jolt bottom tray, when the nuclear island zone produces earthquake harm, guarantee that under the fault condition that safe shutdown earthquake (SL ?2) produces its cable testing bridge system is not damaged, thereby ensure that electric transmission line still can normally move.
Technological scheme of the present invention is as follows: a kind of nuclear island of nuclear power station high resistance ram-jolt bottom tray, comprise two terraced limit and the base plates of being made by the monoblock plate stamping, be respectively equipped with the logical muscle of longitudinal extension in the both sides of base plate, longitudinally be provided with successively several ring stiffeners on base plate.
Further, nuclear island of nuclear power station high resistance ram-jolt bottom tray as above, wherein, described ring stiffener is the long-round-shape structure, with vertical setting of described logical muscle, the section of ring stiffener is n shape.
Further, nuclear island of nuclear power station high resistance ram-jolt bottom tray as above, wherein, described terraced limit is I-shaped structure, and the horizontal two ends on top, terraced limit are circular arc, and centre is linear section structure; Ladder bottom, limit is connected with described base plate by arc structure.
Further, nuclear island of nuclear power station high resistance ram-jolt bottom tray as above, wherein, be provided with several mounting holes on described top, terraced limit and side; Described mounting hole is long-round-shape.
Beneficial effect of the present invention is as follows: the present invention adopts the monoblock plate stamping to make, need not to carry out soldering, the environmental pollution of having avoided welding procedure to cause, improved the antiseptic power of product, reduced the impact of welding on crane span structure sheet material stress, stiffening rib and the vertically logical muscle of annular are set simultaneously on base plate, stressed more uniform compared with old-fashioned laterally logical muscle, greatly improved the total bearing capacity of crane span structure and the flex resistance of downward direction, do not needed by just meeting the requirement of load-bearing cable in the situation that increases crane span structure section bar thickness.
The present invention, with respect to traditional pallet with holes, has following advantage:
(1) global formation, work efficiency is high; Adopt the mould punching moulding, change the original mechanical structure of material, directly stamp out stiffening rib and form cross-arm on crane span structure ground, then global formation, form the high antidetonation of three generations's nuclear island of nuclear power station pallet with holes, meets the requirement of national energy-saving consumption reduction.
(2) corrosion resistance is strong:, due to the moulding of crane span structure integral die, avoided all defect of welding, without any docking hidden danger, have corrosion-resistant by force, the intensity advantages of higher.
(3) high shock resistance: the crane span structure global formation, many circular arcs (U-shaped) structural design on terraced limit and base plate annular muscle and vertical side's muscle coordinate, and have effectively strengthened the flex resistance of crane span structure all directions, make crane span structure have high shock resistance.
(4) high strength: terraced limit, base plate all improve on conventional construction, comprise that terraced limit I-shaped structure, base plate annular muscle and vertical side's muscle all can effectively improve intensity and the bearing capacity of crane span structure integral body.
Description of drawings
Fig. 1 is the overall diagram of nuclear island of nuclear power station high resistance ram-jolt bottom tray of the present invention;
Fig. 2 is the local structural graph of nuclear island of nuclear power station high resistance ram-jolt bottom tray of the present invention;
Fig. 3 is the cross-section structure of nuclear island of nuclear power station high resistance ram-jolt bottom tray of the present invention;
Fig. 4 is the schematic cross-section of logical muscle in Fig. 3;
Fig. 5 is the sectional view of A-A direction in Fig. 2.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As Figure 1-Figure 5, the high antidetonation of three generations's nuclear island of nuclear power station provided by the present invention pallet with holes, comprise two terraced limits 6,7 and base plate 8, this ladder limit 6,7 and base plate 8 make for the monoblock plate stamping, sheet material can adopt carbon steel, stainless steel etc. can meet the sheet material of requirement of strength.Base plate 8 is provided with ring stiffener 5, the logical muscle 4 of longitudinal extension.Ring stiffener 5 has several, the evenly distributed base plate middle part that is arranged on, and ring stiffener is the long-round-shape structure, with the vertical setting of described logical muscle 4, the section of ring stiffener 5 is n shape.As shown in Figure 4, the sectional view of ring stiffener as shown in Figure 5 in the cross section of logical muscle.This ring stiffener 5 and waling 4, can make crane span structure stressed more even, and bearing capacity is higher, and intensity is higher.
As shown in Figure 3, terraced limit 6,7 overall structures are I-shape construction to the high antidetonation of three generations's nuclear island of nuclear power station of the present invention pallet sectional view with holes, have greatly improved the flex resistance of crane span structure bearing capacity and vertical aspect.Ladder upper level two ends, limit are circular arc, centre is linear section structure, the inverted U structure that is similar to two levels forms, each arc-shaped structure all can improve intensity and the flex resistance of crane span structure, simultaneously having increased by one section straightway between arc-shaped structure 1,2 can increase the stability of crane span structure, and further strengthen crane span structure flex resistance (crane span structure is when adding loads, and dual-side is to the flexural stress of inside) in the horizontal direction.Ladder bottom, limit has increased the U-shaped structure that arc-shaped structure 3(tilts), ladder bottom, limit is connected with described base plate by arc structure 3, improved simultaneously the anti-bending strength of crane span structure left and right and up and down, further improved the bearing capacity of crane span structure, when simultaneously no matter cable is placed or is taken out, with the crane span structure contact position be all arc surface, can avoid the scuffing hidden danger of cable.
The high antidetonation of three generations's nuclear island of nuclear power station of the present invention pallet with holes is under earthquake conditions, its overall structure be conducive to the whole uniform stressed of crane span structure and arc- shaped structure 1,2,3 and logical muscle 4, ring stiffener 5 structures work in coordination, make crane span structure integral body all have very strong flex resistance in all directions, by professional softwares such as PROE, ANSYS, this product is carried out mechanical analysis, calculate and prove that product meets level and the vertical direction seismic acceleration is the nuclear island shockproof requirements of 0.3g, thereby guarantee the safe operation of nuclear safety relevant cables.
The high antidetonation of three generations's nuclear island of nuclear power station of the present invention pallet with holes terraced avris section with above uniform long-round-shape mounting hole 9 structures, as shown in Figure 1, 2, make its pallet can meet various on-the-spot installation environments, pallet and cable, cover plate, and the supporting connection of relevant attached accessory, install all extremely for convenience, and can greatly improve pallet installation efficiency at the scene.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and within modification belongs to the scope of the claims in the present invention and equivalent technology thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (5)
1. nuclear island of nuclear power station high resistance ram-jolt bottom tray, it is characterized in that: comprise two terraced limits (6,7) and the base plate (8) made by the monoblock plate stamping, be respectively equipped with the logical muscle (4) of longitudinal extension in the both sides of base plate (8), longitudinally be provided with successively several ring stiffeners (5) on base plate (8).
2. nuclear island of nuclear power station high resistance ram-jolt bottom tray as claimed in claim 1 is characterized in that: described ring stiffener (5) is the long-round-shape structure, and with the vertical setting of described logical muscle (4), the section of ring stiffener (5) is n shape.
3. nuclear island of nuclear power station high resistance ram-jolt bottom tray as claimed in claim 1 or 2, it is characterized in that: described terraced limit (6,7) are I-shaped structure, and the horizontal two ends on top, terraced limit (1,2) are circular arc, and centre is linear section structure; Ladder bottom, limit is connected with described base plate (8) by arc structure (3).
4. nuclear island of nuclear power station high resistance ram-jolt bottom tray as claimed in claim 3, is characterized in that: on described top, terraced limit and side, be provided with several mounting holes (9).
5. nuclear island of nuclear power station high resistance ram-jolt bottom tray as claimed in claim 4, it is characterized in that: described mounting hole (9) is long-round-shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288683.0A CN103398220B (en) | 2013-07-10 | 2013-07-10 | Nuclear power station nuclear island high anti-seismic solid-bottom tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288683.0A CN103398220B (en) | 2013-07-10 | 2013-07-10 | Nuclear power station nuclear island high anti-seismic solid-bottom tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103398220A true CN103398220A (en) | 2013-11-20 |
| CN103398220B CN103398220B (en) | 2016-11-23 |
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| CN201310288683.0A Active CN103398220B (en) | 2013-07-10 | 2013-07-10 | Nuclear power station nuclear island high anti-seismic solid-bottom tray |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB897951A (en) * | 1959-07-21 | 1962-06-06 | Burndy Corp | Supporting trough |
| WO1997015774A1 (en) * | 1995-10-27 | 1997-05-01 | B-Line Systems, Inc. | Ladder-type cable tray |
| UA12106U (en) * | 2005-08-02 | 2006-01-16 | Ltd Liability Company Producti | Duct for laying cables and wires |
| CN201661768U (en) * | 2009-12-31 | 2010-12-01 | 许昌美特桥架股份有限公司 | Electric cable tray |
| US20110013978A1 (en) * | 2009-07-15 | 2011-01-20 | Cooper Technologies Company | Expansion splice plate for a cable tray run |
| CN203384492U (en) * | 2013-07-10 | 2014-01-08 | 中国核电工程有限公司 | High-seismic-resistance solid-bottom tray for nuclear island of nuclear power plant |
-
2013
- 2013-07-10 CN CN201310288683.0A patent/CN103398220B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB897951A (en) * | 1959-07-21 | 1962-06-06 | Burndy Corp | Supporting trough |
| WO1997015774A1 (en) * | 1995-10-27 | 1997-05-01 | B-Line Systems, Inc. | Ladder-type cable tray |
| UA12106U (en) * | 2005-08-02 | 2006-01-16 | Ltd Liability Company Producti | Duct for laying cables and wires |
| US20110013978A1 (en) * | 2009-07-15 | 2011-01-20 | Cooper Technologies Company | Expansion splice plate for a cable tray run |
| CN201661768U (en) * | 2009-12-31 | 2010-12-01 | 许昌美特桥架股份有限公司 | Electric cable tray |
| CN203384492U (en) * | 2013-07-10 | 2014-01-08 | 中国核电工程有限公司 | High-seismic-resistance solid-bottom tray for nuclear island of nuclear power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103398220B (en) | 2016-11-23 |
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