CN108954288B - Tube bundle anti-seismic strip damping device and limiting method - Google Patents
Tube bundle anti-seismic strip damping device and limiting method Download PDFInfo
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- CN108954288B CN108954288B CN201810762391.9A CN201810762391A CN108954288B CN 108954288 B CN108954288 B CN 108954288B CN 201810762391 A CN201810762391 A CN 201810762391A CN 108954288 B CN108954288 B CN 108954288B
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- tube bundle
- sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/107—Protection of water tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- General Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a tube bundle anti-seismic strip damping device, which is arranged between a tube bundle assembly of a steam generator and a lower shell of the steam generator, wherein a plurality of anti-seismic strips are arranged in the tube bundle assembly, the ends of the anti-seismic strips are fixed ends, the fixed ends penetrate out of the tube bundle assembly, the tube bundle anti-seismic strip damping device is connected with the fixed ends, and the tube bundle anti-seismic strip damping device comprises a plurality of damping units with adjustable lengths and a plurality of elastic fixing units, wherein the plurality of damping units are connected with different fixed ends, and the fixing units are connected with. Has the advantages that: the length of the damping unit is adjustable, and the relative position of adjacent anti-seismic strips can be prevented from being deviated. The fixing unit has elasticity, can prevent the relative position of antidetonation strip and lower casing from taking place the skew to but buffer tube bundle subassembly vibration that produces at the during operation is favorable to keeping steam generator's heat exchange efficiency stable and reduce the risk that entire system damaged. The invention relates to a steam generator in pressurized water reactor nuclear power equipment.
Description
Technical Field
The invention relates to a steam generator in pressurized water reactor nuclear power equipment, in particular to a tube bundle anti-seismic strip damping device.
Background
The steam generator is a junction of a primary loop and a secondary loop of a pressurized water reactor nuclear power plant, belongs to nuclear primary equipment, and has the main function of exchanging heat between reactor coolant from the primary loop and steam-water mixture from the secondary loop through the pipe wall of the U-shaped heat exchange pipe by utilizing a U-shaped heat exchange pipe in a lower pipe bundle assembly, so that the steam-water mixture is suddenly vaporized, and a large amount of steam is generated to drive a steam turbine to do work to generate power. In steam generator's operation process, if the tube bank subassembly takes place vibrations and can influence heat exchange efficiency, direct influence generating efficiency influences the life of steam turbine even.
In the manufacturing stage of the tube bundle, when the 1 st and 2 nd U-shaped heat exchange tubes are inserted and the positions of the U-shaped heat exchange tubes are checked to meet the requirements of a drawing, the first layer of anti-seismic strips are inserted, and after the positions and the gaps of the anti-seismic strips are measured to meet the design requirements, the U-shaped heat exchange tubes and the anti-seismic strips are continuously installed until all the U-shaped heat exchange tubes are completely inserted. In the manufacturing process, the offset and the gap of the anti-seismic strip and the central line of the top end of the corresponding U-shaped heat exchange tube are controlled by each step of installation of the anti-seismic strip, and the installation position of the anti-seismic strip in the manufacturing stage of the tube bundle assembly is ensured to meet the requirements of design drawings.
The defects of the prior art are as follows: the U-shaped heat exchange tube and the anti-seismic strip lack fixing and buffering devices, and are limited by the structural design of products, so that in the subsequent manufacturing activity, the lower barrel assembly rotates or moves, and in the process of shipping the products to the nuclear power station site, the anti-seismic strip assembly has the risk of deviation, so that the final position of the anti-seismic strip assembly possibly cannot meet the design requirements; the vibration of the tube bundle is not limited and cushioned during operation of the steam generator unit, resulting in a lower heat exchange efficiency of the steam generator and a reduction in the service life of the overall system.
Disclosure of Invention
The invention aims to solve the technical problem of providing a tube bundle anti-seismic strip damping device which can prevent the anti-seismic strip from deviating in the transportation or construction process and buffer the vibration of a tube bundle assembly during working.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a tube bank antidetonation strip damping device, its mounted position is equipped with a plurality of antidetonation strips in the tube bank subassembly between steam generator's tube bank subassembly and steam generator's the lower casing, and the tip of antidetonation strip is the stiff end, and the tube bank subassembly is worn out to the stiff end, and tube bank antidetonation strip damping device is connected with the stiff end, and tube bank antidetonation strip damping device is including connecting a plurality of damping units of the adjustable length of different stiff ends and connecting a plurality of elastic fixed units of having of stiff end and lower casing.
As an improvement, the damping unit comprises a first screw rod, a second screw rod and a first sleeve, and the first screw rod and the second screw rod are respectively inserted into the first sleeve and are in threaded fit with the first sleeve.
As an improvement, the damping unit further comprises first locking nuts respectively arranged at two ends of the first sleeve, and the first locking nuts are respectively sleeved on the first screw rod and the second screw rod.
As an improvement, the first screw rod and the second screw rod are respectively hinged with a first connecting mechanism connected with the fixed end.
As an improvement, the fixing unit comprises a third screw rod, a first baffle and a second baffle, the first baffle and the second baffle are respectively sleeved on the third screw rod, the third screw rod and the second baffle are respectively connected with the fixing end and the lower shell, the first baffle is fixed on the third screw rod, the third screw rod movably penetrates through the second baffle, and a spring is arranged between the first baffle and the second baffle.
As an improvement, the fixing unit further comprises a sleeve, the first baffle, the second baffle and the spring are arranged in the sleeve, an observation hole and scales are arranged on the sleeve, and an adjusting nut sleeved on the third screw rod is arranged on one side of the second baffle.
As the improvement, the sleeve is hinged with a second connecting mechanism connected with the lower shell, and the third screw rod is hinged with a third connecting mechanism connected with the fixed end.
As an improvement, the third connecting mechanism is provided with at least two fixed claws, a fixed gap is arranged between the fixed claws, and the fixed end is inserted into the fixed gap.
As an improvement, a fourth screw is arranged between the third screw and the second connecting mechanism, a second sleeve is arranged between the third screw and the fourth screw, the third screw and the fourth screw are respectively inserted into the second sleeve and are in threaded fit with the second sleeve, and second locking nuts are respectively arranged at two ends of the second sleeve.
A tube bundle anti-seismic strip limiting method is characterized in that a tube bundle anti-seismic strip damping device is used for limiting anti-seismic strips.
Has the advantages that: the length of the damping unit is adjustable, and the relative position of adjacent anti-seismic strips can be prevented from being deviated. The fixing unit has elasticity, can prevent the relative position of antidetonation strip and lower casing from taking place the skew to but buffer tube bundle subassembly vibration that produces at the during operation is favorable to keeping steam generator's heat exchange efficiency stable and reduce the risk that entire system damaged.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of an installation site of embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1 in accordance with embodiment 1 of the present invention;
FIG. 3 is an enlarged view of part A of FIG. 1 in accordance with embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of a damper device according to embodiment 1 of the present invention;
FIG. 5 is a perspective view of a damper device according to embodiment 1 of the present invention;
FIG. 6 is a schematic structural view of a fixing device according to embodiment 1 of the present invention;
fig. 7 is a perspective view of a fixing device of embodiment 1 of the present invention;
FIG. 8 is a schematic structural view of a fixing device according to embodiment 2 of the present invention;
the embodiment and the drawings in the specification relate to the terms and numbers including: the heat exchange tube comprises a lower shell 1, a heat exchange tube 2, an anti-seismic strip 3, a fixed end 4, a damping unit 5, a fixing unit 6, a first screw 7, a second screw 8, a first sleeve 9, a first locking nut 10, a first connecting mechanism 11, a first hinged shaft 12, a first clamping portion 13, a second clamping portion 14, a third screw 15, a first baffle 16, a second baffle 17, a spring 18, a sleeve 19, an observation hole 20, an adjusting nut 21, a connecting plate 22, a second connecting mechanism 23, a second hinged shaft 24, a third connecting mechanism 25, a third hinged shaft 26, a fixed claw 27, a fourth screw 28, a second sleeve 29 and a second locking nut 30.
Detailed Description
Example 1:
referring to fig. 1 to 7, a 3 damping device of tube bank antidetonation strip, its mounted position is between steam generator's tube bank subassembly and steam generator's lower casing 1, the tube bank subassembly includes a plurality of heat exchange tubes 2 of layering, be equipped with the tube bank clearance between each layer heat exchange tube 2, be equipped with 3 subassemblies of antidetonation strip in the tube bank subassembly, 3 subassemblies of antidetonation strip are including arranging a plurality of antidetonation strips 3 in the tube bank clearance, the tip of antidetonation strip 3 is stiff end 4, stiff end 4 passes out the tube bank subassembly from the tube bank clearance, 3 damping device of tube bank antidetonation strip are connected with stiff end 4. In order to buffer the vibration generated by the anti-seismic strips 3 and prevent the position of the anti-seismic strips 3 from deviating, the damping device of the tube bundle anti-seismic strips 3 comprises a plurality of damping units 5 with adjustable lengths and a plurality of elastic fixing units 6, wherein the plurality of damping units are connected with different fixing ends 4, and the fixing ends 4 are connected with the lower shell 1. The length of the damping unit 5 is adjustable, so that the relative position of the adjacent anti-seismic strips 3 can be prevented from being deviated. The fixing unit 6 has elasticity, can prevent the deviation of the relative position of the anti-seismic strip 3 and the lower shell 1, can buffer the vibration generated by the tube bundle assembly during working, and is favorable for keeping the heat exchange efficiency of the steam generator stable and reducing the risk of the damage of the whole system.
In order to make the length of the damping unit 5 adjustable, the damping unit 5 includes a first screw 7, a second screw 8, and a first sleeve 9, and the first screw 7 and the second screw 8 are respectively inserted into the first sleeve 9 and are threadedly engaged with the first sleeve 9. The first screw 7 and the second screw 8 have opposite thread directions. By rotating the first sleeve 9, the first screw 7 and the second screw 8 can be respectively brought close to each other along the axes thereof, and the length of the damper unit 5 can be shortened. By rotating the first sleeve 9 in the opposite direction, the first screw 7 and the second screw 8 are respectively moved away from each other along the axes thereof, and the length of the damping unit 5 is extended.
In order to fix the length of the damping unit 5, the damping unit 5 further includes first locking nuts 10 respectively disposed at two ends of the first sleeve 9, and the first locking nuts 10 are respectively sleeved on the first screw 7 and the second screw 8. By screwing the first locking nuts 10 at the two ends of the first sleeve 9, the length of the damping unit 5 can be prevented from changing, which is beneficial to preventing the relative position between the anti-seismic strips 3 from shifting.
In order to prevent the damping device from bending, the first screw 7 and the second screw 8 are respectively hinged with a first connecting mechanism 11 connected with the fixed end 4, and a first hinge shaft 12 is respectively arranged between the first connecting mechanism 11 and the first screw 7 and the second screw 8. The first hinge axis 12 allows the damping unit 5 to be bent, and prevents the damping unit 5 from being bent and damaged when there is a tendency for relative displacement between the respective anti-seismic strips 3. The first connecting mechanism 11 is provided with a first clamping portion 13 and a second clamping portion 14 which protrude, a fixing groove is formed between the first clamping portion 13 and the second clamping portion 14, threaded holes are formed in the end portions of the first clamping portion 13 and the second clamping portion 14, the fixing end 4 of the anti-seismic strip 3 is inserted into the fixing groove, and the first clamping portion 13 and the second clamping portion 14 are tightened through screws, so that the fixing end 4 of the anti-seismic strip 3 is tightly clamped in the fixing groove. The damping unit 5 both ends of this embodiment are connected the fixed part of two antidetonation strips 3 in the same tube bank clearance respectively, can prevent that the relative position between the different antidetonation strips 3 in the same tube bank clearance from taking place the skew.
In order to make the fixing unit 6 have elasticity, the fixing unit 6 comprises a third screw 15 and a first baffle 16 and a second baffle 17 which are respectively sleeved on the third screw 15, the third screw 15 and the second baffle 17 are respectively connected with the fixed end 4 and the lower shell 1, the first baffle 16 is fixed on the third screw 15, the third screw 15 can movably penetrate through the second baffle 17, a spring 18 is arranged between the first baffle 16 and the second baffle 17, the spring 18 is sleeved on the third screw 15, two ends of the spring 18 respectively abut against the first baffle 16 and the second baffle 17, so that the third screw 15 is connected with the second baffle 17 through the spring 18, when vibration is generated between the anti-vibration strip 3 and the lower shell 1, the spring 18 can buffer and absorb vibration, so that the anti-vibration strip 3 and the lower shell 1 are prevented from deviating, the heat exchange efficiency of the steam generator is kept stable, and the damage risk of the whole system is reduced.
In order to adjust the pressure between the anti-seismic strip 3 and the lower shell 1, the fixing unit 6 further comprises a sleeve 19, a first baffle 16, a second baffle 17 and a spring 18 are arranged in the sleeve 19, an observation hole 20 and scales are arranged on the sleeve 19, and an adjusting nut 21 sleeved on the third screw rod 15 is arranged on one side of the second baffle 17. The sleeve 19 prevents misalignment between the spring 18 and the second shutter 17. Adjusting nut 21 is adjustable and fixed the distance between 16 and the second baffle 17 of first baffle, and then the decrement of adjustment spring 18, makes and produces certain pressure between antidetonation strip 3 and the casing 1 down, can prevent that the relative position of antidetonation strip 3 and casing 1 from taking place the skew down to but the vibration that the tube bundle subassembly produced at the during operation, be favorable to keeping steam generator's heat exchange efficiency stable and reduce the risk that entire system damaged. The observation hole 20 and the scales can facilitate observation of the position of the first baffle 16, so that the deformation of the spring 18 can be visually observed, the flexible adjustment of the deformation of the spring 18 in accordance with different requirements is facilitated, the compression state of the spring 18 of each fixing unit 6 can be conveniently checked, and the inspection and maintenance are facilitated.
In order to prevent the fixing unit 6 from bending, a connecting plate 22 surrounding the adjusting nut 21 is provided on the sidewall of the sleeve 19, a second connecting mechanism 23 is hinged on the connecting plate 22, a second hinge shaft 24 is provided between the connecting plate 22 and the second connecting mechanism 23, and the second connecting mechanism 23 is connected with the lower housing 1. A third connecting mechanism 25 connected with the fixed end 4 is hinged on the third screw rod 15, and a third hinge shaft 26 is arranged between the third connecting mechanism 25 and the third screw rod 15. The second hinge shaft 24 and the third hinge shaft 26 allow the fixing unit 6 to be bent, and prevent the fixing unit 6 from being bent and damaged when there is a tendency for relative deviation between the anti-seismic strips 3 and the lower case 1.
In order to prevent the position of the anti-seismic strip 3 between the gaps of different tube bundles from shifting relatively, six fixing claws 27 are arranged on the third connecting mechanism 25, five fixing gaps are arranged among the six fixing claws 27, each fixing end 4 is inserted into the fixing gap respectively, threaded holes are formed in the fixing claws 27, pressing sheets are additionally arranged at the threaded holes to clamp the fixing ends 4, and the fixing ends 4 can be prevented from falling off. The ends of the fixing claws 27 of this embodiment are distributed in an arc shape and can be used for fixing the fixing ends 4 arranged in an arc shape. The fixed ends 4 between the different tube bundle gaps are connected to the same third connecting mechanism 25, so that the positions of the anti-seismic strips 3 between the different tube bundle gaps are prevented from being relatively shifted.
In order to prevent the parts from falling off, the fastening members in the damping unit 5 and the fixing unit 6 are fixed to the adjacent parts by welding, and include screws provided between the first clamping portion 13 and the second clamping portion 14 and first hinge shafts 12 provided between the first connecting mechanism 11 and the first screw bar 7 or the second screw bar 8. The pin shaft parts are connected to adjacent parts through steel wire ropes. The pin-like element comprises a second hinge axis 24 provided between the second connection means 23 and the sleeve 19 and a third hinge axis 26 provided between the third connection means 25 and the third screw 15. The anti-loosening measure can reduce the possibility of damage to other devices such as a steam turbine caused by falling parts.
A tube bundle anti-seismic strip 3 limiting method is characterized in that a tube bundle anti-seismic strip 3 damping device is used for limiting an anti-seismic strip 3, a damping unit 5 is installed between fixed ends 4 of the anti-seismic strip 3, a first connecting mechanism 11 clamps the fixed ends 4 tightly, the length of the damping unit 5 is adjusted by rotating a first sleeve 9, the relative position of the fixed ends 4 is fixed, and then a first locking nut 10 is screwed. A fixing unit 6 is arranged between the fixed end 4 of the anti-seismic strip 3 and the lower shell 1, the second connecting mechanism 23 is fixedly connected with the lower shell 1 through a fastener, the third connecting mechanism 25 is fixedly connected with the fixed end 4, the adjusting nut 21 is rotated, the spring 18 is compressed, a certain pressure is formed between the fixing unit 6 and the fixed end 4 of the anti-seismic strip 3, and finally the adjusting nut 21 is locked. After the damping unit 5 and the fixing unit 6 are installed, the screw between the first clamping portion 13 and the second clamping portion 14 and the first hinge shaft 12 are fixed on the first connecting mechanism 11 through welding, and the second hinge shaft 24 and the third hinge shaft 26 are additionally provided with the steel wire rope and connected to adjacent parts, so that the steel wire rope can be prevented from falling off and falling into a piping system.
Example 2:
referring to fig. 1 to 8, in order to adjust the length of the fixing unit 6, a fourth screw 28 is disposed between the third screw 15 and the second connecting mechanism 23, a second sleeve 29 is disposed between the third screw 15 and the fourth screw 28, the third screw 15 and the fourth screw 28 are respectively inserted into the second sleeve 29 and are in threaded engagement with the second sleeve 29, and second locking nuts 30 are respectively disposed at two ends of the second sleeve 29. In the present embodiment, the third screw 15 and the fourth screw 28 have opposite screw directions, and the third screw 15 and the fourth screw 28 can be moved closer to each other by rotating the second sleeve 29, so that the fixing unit 6 can be shortened. The third screw 15 and the fourth screw 28 can be moved away from each other by rotating the second sleeve 29 in the reverse direction, and the fixing unit 6 can be elongated. By tightening the second locking nut 30, the length of the fixing unit 6 can be kept constant. The amount of compression of the spring 18 can be further adjusted by adjusting the length of the fixing unit 6.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. The utility model provides a tube bank antidetonation strip damping device, its mounted position is equipped with a plurality of antidetonation strips in the tube bank subassembly between steam generator's tube bank subassembly and steam generator's the lower casing, and the tip of antidetonation strip is the stiff end, and the tube bank subassembly is worn out to the stiff end, and tube bank antidetonation strip damping device is connected its characterized in that with the stiff end: the damping device comprises a plurality of damping units with adjustable lengths and a plurality of elastic fixing units, wherein the damping units are connected with different fixing ends; the fixed unit comprises a third screw rod, and a first baffle and a second baffle which are respectively sleeved on the third screw rod, the third screw rod and the second baffle are respectively connected with the fixed end and the lower shell, the first baffle is fixed on the third screw rod, the third screw rod movably penetrates through the second baffle, and a spring is arranged between the first baffle and the second baffle.
2. A tube bundle seismic strip damping device as defined in claim 1, wherein: the damping unit comprises a first screw rod, a second screw rod and a first sleeve, wherein the first screw rod and the second screw rod are respectively inserted into the first sleeve and are in threaded fit with the first sleeve.
3. A tube bundle seismic strip damping device according to claim 2, wherein: the damping unit further comprises first locking nuts respectively arranged at two ends of the first sleeve, and the first locking nuts are respectively sleeved on the first screw rod and the second screw rod.
4. A tube bundle seismic strip damping device according to claim 2, wherein: the first screw rod and the second screw rod are respectively hinged with a first connecting mechanism connected with the fixed end.
5. A tube bundle seismic strip damping device as defined in claim 1, wherein: the fixing unit further comprises a sleeve, the first baffle, the second baffle and the spring are arranged in the sleeve, an observation hole and scales are arranged on the sleeve, and an adjusting nut arranged on the third screw rod is sleeved with one side of the second baffle.
6. A tube bundle seismic strip damping device according to claim 5, characterized in that: articulated on the sleeve have with shell connection's second coupling mechanism down, articulated on the third screw rod have with the third coupling mechanism that the stiff end is connected.
7. A tube bundle seismic strip damping device according to claim 6, wherein: and the third connecting mechanism is provided with at least two fixed claws, a fixed gap is arranged between the fixed claws, and the fixed ends are inserted into the fixed gap.
8. A tube bundle seismic strip damping device according to claim 7, wherein: and a fourth screw is arranged between the third screw and the second connecting mechanism, a second sleeve is arranged between the third screw and the fourth screw, the third screw and the fourth screw are respectively inserted into the second sleeve and are in threaded fit with the second sleeve, and second locking nuts are respectively arranged at two ends of the second sleeve.
9. A tube bundle anti-seismic strip limiting method is characterized in that: the tube bundle seismic strip damping device according to any one of claims 1-8 is used for limiting the seismic strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762391.9A CN108954288B (en) | 2018-07-11 | 2018-07-11 | Tube bundle anti-seismic strip damping device and limiting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762391.9A CN108954288B (en) | 2018-07-11 | 2018-07-11 | Tube bundle anti-seismic strip damping device and limiting method |
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| CN108954288A CN108954288A (en) | 2018-12-07 |
| CN108954288B true CN108954288B (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810762391.9A Active CN108954288B (en) | 2018-07-11 | 2018-07-11 | Tube bundle anti-seismic strip damping device and limiting method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571168B (en) * | 2022-02-22 | 2023-10-27 | 哈电集团（秦皇岛）重型装备有限公司 | Steam generator tube bundle assembly assembling and positioning device and method |
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| US4991645A (en) * | 1988-06-20 | 1991-02-12 | Westinghouse Electric Corp. | Steam generator tube antivibration apparatus |
| FR2707382A1 (en) * | 1993-07-09 | 1995-01-13 | Framatome Sa | Heat exchanger comprising a bundle of U-bent tubes and anti-vibration bars between the bent parts of the tubes. |
| CN1102500A (en) * | 1993-08-20 | 1995-05-10 | 法玛通公司 | Heat exchanger including means for holding antivibration bars interposed between the tubes of the bundle of the exchanger |
| FR2714626A1 (en) * | 1993-12-31 | 1995-07-07 | Framatome Sa | Removable supports for tubes of a heat exchanger during assembly and transport |
| CN1160183A (en) * | 1995-03-09 | 1997-09-24 | 费罗马托姆公司 | U-tube heat exchanger, equipped with tube antivibration stabilizing system and hold-down system |
| CN202229648U (en) * | 2011-09-16 | 2012-05-23 | 茂名重力石化机械制造有限公司 | Shell and tube type heat exchanger with U-shaped tube bundle vibration proof device |
| CN205858865U (en) * | 2016-07-20 | 2017-01-04 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of steam generator vibrationproof bar fixing device |
| CN106855226A (en) * | 2015-12-09 | 2017-06-16 | 中广核工程有限公司 | Steam Generators in NPP vibrationproof bar structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140014294A1 (en) * | 2012-07-13 | 2014-01-16 | Areva Np Inc. | U-Bend Tube Compression/Distortion Stabilization System (CDSS) |
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2018
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4991645A (en) * | 1988-06-20 | 1991-02-12 | Westinghouse Electric Corp. | Steam generator tube antivibration apparatus |
| FR2707382A1 (en) * | 1993-07-09 | 1995-01-13 | Framatome Sa | Heat exchanger comprising a bundle of U-bent tubes and anti-vibration bars between the bent parts of the tubes. |
| CN1102500A (en) * | 1993-08-20 | 1995-05-10 | 法玛通公司 | Heat exchanger including means for holding antivibration bars interposed between the tubes of the bundle of the exchanger |
| FR2714626A1 (en) * | 1993-12-31 | 1995-07-07 | Framatome Sa | Removable supports for tubes of a heat exchanger during assembly and transport |
| CN1160183A (en) * | 1995-03-09 | 1997-09-24 | 费罗马托姆公司 | U-tube heat exchanger, equipped with tube antivibration stabilizing system and hold-down system |
| CN202229648U (en) * | 2011-09-16 | 2012-05-23 | 茂名重力石化机械制造有限公司 | Shell and tube type heat exchanger with U-shaped tube bundle vibration proof device |
| CN106855226A (en) * | 2015-12-09 | 2017-06-16 | 中广核工程有限公司 | Steam Generators in NPP vibrationproof bar structure |
| CN205858865U (en) * | 2016-07-20 | 2017-01-04 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of steam generator vibrationproof bar fixing device |
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| CN108954288A (en) | 2018-12-07 |
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