CN105580087A - Steam generator and method of securing tubes within a steam generator against vibration - Google Patents
Steam generator and method of securing tubes within a steam generator against vibration Download PDFInfo
- Publication number
- CN105580087A CN105580087A CN201480052893.2A CN201480052893A CN105580087A CN 105580087 A CN105580087 A CN 105580087A CN 201480052893 A CN201480052893 A CN 201480052893A CN 105580087 A CN105580087 A CN 105580087A
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- plane
- pipe
- solid
- antivibration rod
- antivibration
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Classifications
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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
- F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
- F22B37/205—Supporting and spacing arrangements for tubes of a tube bundle
- F22B37/206—Anti-vibration supports for the bends of U-tube steam generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/023—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group
- F22B1/025—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers with heating tubes, for nuclear reactors as far as they are not classified, according to a specified heating fluid, in another group with vertical U shaped tubes carried on a horizontal tube sheet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/30—Safety or protection arrangements; Arrangements for preventing malfunction for preventing vibrations
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
Abstract
A steam generator (2) includes a tube bundle (200,300,500) having a plurality of tubes, arranged in rows and columns. The first column of tubes (210,310,510) includes a first tube (212,312) having a curved center line (214) disposed in a first plane (216,316,516). The second column of tubes (230,330,530) includes a second tube (232,332) having a curved center line (234) disposed in a second plane (236,336,536), the second plane being parallel to and spaced a distance (206,306) from the first plane. The steam generator further includes a first number of solid anti-vibration bars (220,320,520) disposed between the first column of tubes and the second column of tubes; wherein each of the tubes has a tube outer diameter (204,304); and wherein each of the first number of anti-vibration bars has a thickness (222,322,522) generally transverse to the first and second planes, the thickness being greater than the distance between the first and second planes minus the tube outer diameter.
Description
Background
Technical field
Present invention relates in general to steam generator, relate to the steam generator comprising antivibration rod particularly.The invention still further relates to the method utilizing multiple antivibration rod antivibration ground stationary heat exchangers pipe in a vapor generator.
Background information
The heat interchanger with tube bank is generally used for pressurized-water reactor system.Steam generator comprises vertically-oriented housing, the tube bank formed by the pipe being included in two vertical assemblies that turn of bilge converges haply, for the tube sheet at the end stay pipe relative with turn of bilge, to coordinate thus form a fluid intake collector in the one end of restraining and form the dividing plate of a fluid egress point collector at the other end of restraining with tube sheet and semisphere low head.A fluid inlet nozzle and a fluid intake collection fluid communication, a fluid outlet noz-zle and a fluid egress point collection fluid communication.The secondary side of steam generator comprise be arranged between tube bank with housing with formed by the housing in outside and inner side enclose the ring cavity that cylinder formed enclose cylinder, and above the turn of bilge being arranged on tube bank to water ring.
Entered steam generator by the hydronic fluid by reactor core through a fluid inlet nozzle.One time fluid leaves a fluid inlet nozzle, is conducted through a fluid intake collector, by the inner side of tube bank, leaves a fluid egress point collector, arrives reactor coolant pump, for recycle by a fluid outlet noz-zle.Meanwhile, feeding water is introduced into steam generator secondary side by water feed nozzle, this water feed nozzle be connected to inside steam generator to water ring.After entering steam generator, feedwater mixes with from being positioned at the water (being called as recirculation flow) that returns of steam-water separator above restraining.Be called as this potpourri of downtake stream guided downward by housing and the ring cavity that encloses between cylinder, until the tube sheet near bottom ring cavity makes described current change direction, with Tube Sheet of Heat Exchanger outside till in heat exchanging relation, ground upwards flows through the inner side of enclosing cylinder.Water just with tube bank heat exchange relation circulate while, heat from time fluid of Tube Sheet of Heat Exchanger be delivered to encirclement pipe water, this causes a part of water outside pipe to be transformed into steam.Then steam-water mixture rises and is conducted through the multiple steam-water separators for being separated by the moisture of entrainment with steam, and then water vapor leaves steam generator and is typically recycled by turbogenerator, thus produces electric energy in known manner.
Mainly comprise the turn of bilge of pipe and the steam generator part being positioned at below low head is commonly called evaporator section.The steam generator part comprising steam-water separator above Tube Sheet of Heat Exchanger is commonly called drum.Feedwater enters steam generator by the inlet nozzle being arranged on barrel-type casing top.Feedwater is disperseed and is mixed with by the isolated water of steam-water separator, then flows downward along the ring cavity around tube bank.
Pipe supports with conventional means at its openend, and therefore the end of Tube Sheet of Heat Exchanger is soldered to the tube sheet of the longitudinal axis setting being approximately perpendicular to steam generator.The a series of tube support plate arranged with relation axially spaced apart from each other or bracing frame are arranged along the straight part of pipe, thus support the straight portions of described piping.About tube bank, steam generator miscellaneous adopts different pipe configurations, and such as described turn of bilge is arc or U-shaped, or each vertical assembly of Tube Sheet of Heat Exchanger bends a wedge angle, thus forms the bend of relative level shape.
Be positioned in the turn of bilge of pipe be multiple antivibration rod, they be usually arranged on each pipe row between.Antivibration rod provides support, and does not substantially interfere with moisture vapor stream.Antivibration rod is intended to prevent each Tube Sheet of Heat Exchanger of whole tube bank from undue vibration occurring, and energy of vibration damages Tube Sheet of Heat Exchanger potentially.It is known that the impact more seriously vibrated of turn of bilge of tube bank, and be more difficult to fully support to eliminate vibration due to bending configuration.
The plane of typical motion perpendicular to U-bend portion of the Tube Sheet of Heat Exchanger of common vibration occurs, and therefore this vibration is called as flat out-of-plane vibration.Under uncommon condition, Tube Sheet of Heat Exchanger also experiences oscillates within planes.In this case, specify the adjacent tubes in row to contact with each other, thus cause the badly damaged of pipe.The manufacture of tube bank and assembling are the major obstacles of the mechanical conceptual solved the problem.So current antivibration rod assembly scheme can not limit the oscillates within planes of Tube Sheet of Heat Exchanger significantly.
Summary of the invention
Meet above demand and other demands by the present invention, the solid antivibration rod wherein with the thickness of increase is constructed to be positioned in tube bank.
According to a scheme of the present invention, provide a kind of steam generator.Steam generating appliances is side and secondary side once, and described primary side is used for heated fluid is circulated, and described secondary side circulates for making the fluid heated by the heated fluid circulated in primary side.Described steam generator comprises: for receiving the low head of heated fluid; By the tube sheet that low head and secondary side separate; Have the tube bank of the many pipes arranged along row and column, described tube bank extends through tube sheet from low head and passes secondary side at least partially; And the first solid antivibration rod of quantity.Described many pipes comprise the first pipe row, and described first pipe row comprise first pipe with the arc center line be arranged in the first plane.Described many pipes also comprise the second pipe row, and each of the solid antivibration rod of described first quantity is all arranged between the first pipe row and the second pipe row.Second pipe row comprise second pipe with the arc center line be arranged in the second plane, and the second plane is parallel to the first plane, and separates a distance with the first plane.Each of pipe all has pipe external diameter.Each of the solid antivibration rod of described first quantity all has the thickness being approximately perpendicular to the first plane and the second plane.The thickness of each distance be all greater than between the first plane and the second plane of the solid antivibration rod of described first quantity deducts the difference of pipe external diameter.
According to another aspect of the present invention, provide a kind of method preventing vibrating at steam generator internal fixtion pipe, described pipe is arranged on restrains interior and is arranged along row and column, there is piping lane between described row.Described method comprises: provide the first pipe row, and the first pipe row comprise first pipe with the arc center line be arranged in the first plane; The solid antivibration rod of the first quantity is provided; And the second pipe row are provided, each of the solid antivibration rod of described first quantity is all arranged between the first pipe row and the second pipe row, second pipe row comprise second pipe with the arc center line be arranged in the second plane, and the second plane is parallel to the first plane, and separates a distance with the first plane.Every root Guan Jun has pipe external diameter.Each of the solid antivibration rod of described first quantity all has the thickness being approximately perpendicular to the first plane and the second plane.The thickness of each distance be all greater than between the first plane and the second plane of the solid antivibration rod of described first quantity deducts the difference of pipe external diameter.
Accompanying drawing explanation
The description of reading preferred embodiment below in conjunction with the drawings can obtain complete understanding of the present invention, wherein:
Fig. 1 is the skeleton view of the partial cut of VERTICAL TUBE shell-type steam generator;
Fig. 2 is the schematic cross sectional views of the part tube bank of the steam generator with antivibration rod;
Fig. 3 is the schematic cross sectional views of the part tube bank of the steam generator according to one embodiment of present invention with antivibration rod;
Fig. 4 A is the schematic elevational view of multiple Tube Sheet of Heat Exchanger of the tube bank of Fig. 3;
Fig. 4 B is the schematic side elevation of the Tube Sheet of Heat Exchanger of Fig. 4 A;
Fig. 4 C is the schematic isometric drawing of the Tube Sheet of Heat Exchanger of Fig. 4 A;
Fig. 5 is the schematic cross sectional views of the part tube bank of the steam generator according to an alternative embodiment of the invention with antivibration rod;
Fig. 6 A is the schematic cross sectional views of the part tube bank of the steam generator according to still a further embodiment with antivibration rod;
Fig. 6 B is the schematic cross sectional views of tube bank of Fig. 6 A after antivibration rod is moved;
Fig. 7 is the schematic cross sectional views of the part tube bank of the steam generator according to another embodiment of the invention with antivibration rod.
Embodiment
See accompanying drawing, Fig. 1 depicts the steam generator 2 adopting multiple Tube Sheet of Heat Exchanger 3, and Tube Sheet of Heat Exchanger forms tube bank 4 thus provides from a fluid heat transferring with the area of heating surface making a secondary fluid evaporate or required for boiling.Steam generator 2 comprises container, and container has the top cover of vertically-oriented tubular shell part 6 and encapsulating upper end or the roughly hemispheric low head 10 of dished (torispherical) head 8 and encapsulating lower end.Lower housing section 6 is diametrically being less than upper case portion 12, and conical butt transition portion 14 connects upper case portion and lower housing section.Tube sheet 16 is attached to low head 10, and has and be arranged on tube sheet to receive multiple holes 18 of Tube Sheet of Heat Exchanger 3 end.Dividing plate 22 is arranged on the central authorities of low head 10, thus low head 10 is divided into two compartments 24,26 of the collector as tube bank 4.Compartment 26 is a fluid intake compartment and has the fluid inlet nozzle 27 be communicated with this compartment fluid.Compartment 24 is a fluid egress point compartment and has the fluid outlet noz-zle 28 be communicated with this compartment fluid.Therefore, the fluid (i.e. reactor coolant) entering fluid compartment 26 is caused to be flow through tube bank 4 and flows out through outlet nozzle 28.
Tube bank 4 enclosed cylinder 30 around, this defines circular passage 32 enclosing cylinder 30 and housing 6 and enclose between cylinder and transition portion 14.The lower cover 34 enclosing the involved multiple perforate 36 in top of cylinder 30 covered, and described multiple perforate is communicated with multiple tedge 38 fluid.Swirl vane 40 is arranged in tedge 38, thus when steam flows through this first-stage centrifugal separation vessel, makes the steam flowing through tedge rotate and remove portion of water contained in devaporation eccentrically.The water be separated in described primary separator turns back to the top surface of lower cover 34.After flowing through first-stage centrifugal separation vessel, steam flow through second-stage separator 42 before arrival is arranged on the steam outlet nozzle 44 of dished (torispherical) head 8 central authorities.The water be separated from described steam in second-stage separator 42 returns, and mixes above lower cover 34 with the water returned from primary separator.
The feed-water intake structure of described steam generator 2 comprises having and is called as to the feed-water intake nozzle 46 of the basic horizontal part of water ring 48 with to the water discharge nozzle 50 above water ring 48.The feedwater supplied by feed-water intake nozzle 46 is flow through to water ring 48, is left, then mix with water separated from steam, and be recycled by water discharge nozzle 50.Then, potpourri flows to the top of lower cover 34 downwards, enters annular downtake passage 32.Then, the low portion place that water is enclosing cylinder 30 enters tube bank 4, and flows between Tube Sheet of Heat Exchanger 3 and upwards flow through tube bank 4, and it is heated to produce steam there.
As described above, restrain 4 and there is multiple antivibration rod (not shown in figure 1) be positioned between Tube Sheet of Heat Exchanger 3.Fig. 2 depicts the part tube bank 100 comprising multiple Tube Sheet of Heat Exchanger row 110,130,150.Be positioned between First Heat Exchanger pipe row 110 and the second Tube Sheet of Heat Exchanger row 130 is antivibration rod 120.Be positioned between the second Tube Sheet of Heat Exchanger row 130 and the 3rd Tube Sheet of Heat Exchanger row 150 is antivibration rod 140.Antivibration rod 120 has thickness 122, and antivibration rod 140 has thickness 142.As shown in the figure, because antivibration rod 120,140 is rectilinear, so thickness 122,142 is subject to Tube Sheet of Heat Exchanger row 110,130, the restriction of the distance 101 between 150.So be in operation, antivibration rod 120,140 can not reduce Tube Sheet of Heat Exchanger row 110,130 significantly, the amount of contingent move in plane in 150.
As discussed by composition graphs 3 to 7, by arranging multiple antivibration rod 220,240,320,460,480 be modified, 520 reduce oscillates within planes significantly.See Fig. 3, illustrate the xsect of the part in the U-bend portion of the tube bank 200 of steam generator (not shown).Tube bank 200 comprises multiple Tube Sheet of Heat Exchanger row 210,230,250, and wherein any two adjacent heat exchange organ pipes have the equal distance 203 (comprising fabrication tolerance) of (such as rounded projections arranged) between they centers.Although the present invention will be described in conjunction with a kind of rounded projections arranged, will understand is that the present invention can adopt substituting orientation (such as but do not limit, have the tube bank (not shown) of the Tube Sheet of Heat Exchanger of the square arrangement of rotation 45 degree).
First Heat Exchanger pipe row 210 can be positioned at the middle part of tube bank 200 or can be positioned at end.Be positioned between First Heat Exchanger pipe row 210 and the second Tube Sheet of Heat Exchanger row 230 is antivibration rod 220.Antivibration rod 220 is solid and has thickness 222.See Fig. 3 to 4C, First Heat Exchanger pipe row 210 comprise the Tube Sheet of Heat Exchanger 212 with the arc center line 214 be positioned in plane 216.Similarly, the second Tube Sheet of Heat Exchanger row 230 comprise the Tube Sheet of Heat Exchanger 232 with the arc center line 234 be positioned in plane 236.As shown in Figure 3, plane 216 is parallel with plane 236, and interval one is apart from 206.The twice that distance 206 is substantially equal to external diameter 202 (such as Tube Sheet of Heat Exchanger external diameter 204) adds distance 201.Distance 201 corresponds to the distance 101 shown in Fig. 2.
As shown in Figure 3, the thickness 222 of antivibration rod 220 is basically perpendicular to plane 216,236, and is greater than Tube Sheet of Heat Exchanger row 210, the distance 201 between 230.Still see Fig. 3, being positioned between the second Tube Sheet of Heat Exchanger row 230 and the 3rd Tube Sheet of Heat Exchanger row 250 is the second antivibration rod 240.Be similar to antivibration rod 220, antivibration rod 240 is solid and has thickness 242.See Fig. 3 to 4C, the 3rd Tube Sheet of Heat Exchanger row 250 comprise the Tube Sheet of Heat Exchanger 252 with the arc center line 254 be positioned in plane 256.Plane 256 is parallel to plane 236 and is spaced from a distance 208.The twice that distance 208 is substantially equal to external diameter 202 (such as Tube Sheet of Heat Exchanger external diameter 204) adds distance 201.
Be similar to the thickness 222 of antivibration rod 220, the thickness 242 of antivibration rod 240 is basically perpendicular to plane 236,256, and is greater than Tube Sheet of Heat Exchanger row 230, the distance 201 between 250.Be in operation, the thickness of this increase prevents at Tube Sheet of Heat Exchanger row 210,230, and (such as, plane 216,236,256) motion in obvious plane in 250, this advantageously corresponds to the obvious minimizing of tube bank 200 midplane internal vibration.As shown in Figure 3, antivibration rod 220 comprise arc and be formed at the multiple turn of bilges 224 wriggled between First Heat Exchanger pipe row 210 and the second Tube Sheet of Heat Exchanger row 230.
Similarly, antivibration rod 240 comprise arc and be formed at the multiple turn of bilges 244 wriggled between the second Tube Sheet of Heat Exchanger row 230 and the 3rd Tube Sheet of Heat Exchanger row 250.Turn of bilge 224,244 make the thickness 222,242 of antivibration rod 220,240 can be greater than the thickness 122,142 of antivibration rod 120,140.In addition, the thickness 122,142 of antivibration rod 120,140 is not more than distance 101, and the thickness of antivibration rod 220,240 distance 203 be only subject between adjacent center deducts the restriction of twice radius (such as Tube Sheet of Heat Exchanger external diameter 204).
Fig. 5 depicts the part in the U-bend portion of the tube bank 300 of the steam generator (not shown) according to alternate embodiment of the present invention.As shown in the figure, restrain 300 and comprise the antivibration rod 320 be positioned between First Heat Exchanger pipe row 310 and the second Tube Sheet of Heat Exchanger row 330.First Heat Exchanger pipe row 310 can be positioned at the middle part of tube bank 330 or can be positioned at end.In addition, First Heat Exchanger pipe row 310 comprise the Tube Sheet of Heat Exchanger 312 with the arc center line (not shown) be positioned in plane 316.Second Tube Sheet of Heat Exchanger row 330 comprise the Tube Sheet of Heat Exchanger 332 with the arc center line (not shown) be positioned in plane 336.Plane 336 is parallel to plane 316 and is spaced from a distance 306.Be similar to antivibration rod 220,240, antivibration rod 320 has thickness 322.Thickness 322 is substantially perpendicular to plane 316,336, and is greater than Tube Sheet of Heat Exchanger row 310, the distance 301 between 330.
As shown in the figure, distance 301 corresponds to the radius 302 (such as Tube Sheet of Heat Exchanger external diameter 304) that distance 306 deducts twice.By being similar to the mode of antivibration rod 220,240, antivibration rod 320 is constructed to wriggle between First Heat Exchanger pipe row 310 and the second Tube Sheet of Heat Exchanger row 330.But antivibration rod 220,240 comprises multiple turn of bilges 224,244 of circular arc, and antivibration rod 320 comprises multiple turn of bilges 324 of indentation substantially.The turn of bilge 224,244 of picture antivibration rod 220,240 is the same, and the turn of bilge 324 of antivibration rod 320 allows antivibration rod 320 to have the thickness 322 of increase.In addition, antivibration rod 220,240 is similar to, be in operation, the thickness of the increase of antivibration rod 320 prevents in obvious plane (such as, see plane 316,336) move, and Tube Sheet of Heat Exchanger row 310,330 advantageously correspond to the obvious minimizing of the oscillates within planes in tube bank 300.
Fig. 6 A depicts the part in the U-bend portion of the tube bank 400 comprising multiple antivibration rod 460,480.Antivibration rod 460 is positioned between First Heat Exchanger pipe row 410 and the second Tube Sheet of Heat Exchanger row 430.First Heat Exchanger pipe row 410 can be positioned at the middle part of tube bank 400 or can be positioned at end.Antivibration rod 480 is positioned between the second Tube Sheet of Heat Exchanger row 430 and the 3rd Tube Sheet of Heat Exchanger row 450.Be similar to antivibration rod 220,240, antivibration rod 460,480 comprises and is constructed at Tube Sheet of Heat Exchanger row 410,430, the multiple turn of bilges 464,484 wriggled between 450.But antivibration rod 460,480 does not have antivibration rod 220, and 240 is thick.
As shown in Figure 6A, First Heat Exchanger pipe row 410 comprise Tube Sheet of Heat Exchanger 412, and the second Tube Sheet of Heat Exchanger row 430 comprise Tube Sheet of Heat Exchanger 432, and antivibration rod 460 is near Tube Sheet of Heat Exchanger 412, and 432 are set up.Because antivibration rod 460 is relatively thin, so in antivibration rod 460 and Tube Sheet of Heat Exchanger 412, there is gap (such as, see gap 467) between 432.Similarly, each Tube Sheet of Heat Exchanger of antivibration rod 480 in Tube Sheet of Heat Exchanger 432 and the 3rd Tube Sheet of Heat Exchanger row 450 is set up.Because antivibration rod 480 is relatively thin, so there is gap (such as, see gap 487) between antivibration rod 480 and the Tube Sheet of Heat Exchanger of the second Tube Sheet of Heat Exchanger row 430 and the 3rd Tube Sheet of Heat Exchanger row 450.
As shown in the figure, antivibration rod 460 is located along longitudinal axis 465 substantially, and antivibration rod 486 is located along longitudinal axis 485 substantially.Fig. 6 B depicts a part for tube bank 400 ', wherein antivibration rod 460, and 480 longitudinally 465,485 are shifted.As shown in Figure 6 A and 6B, antivibration rod 460 longitudinally 465 is shifted with first direction 461.Antivibration rod 480 longitudinally 485 is shifted with second direction 481.First direction 461 and second direction 481 substantially parallel and opposite each other.After the manufacture of tube bank completes, can drawing and/or pushing away and antivibration rod 460,480 is shifted by operator or suitable mechanism well known in the prior art.
As depicted in figure 6b, along with antivibration rod 460 longitudinally 465 moves with first direction 461, antivibration rod 460 engages Tube Sheet of Heat Exchanger 412, thus gap is not existed (or the gap 467 shown in Fig. 6 A is reduced dimensionally significantly).Similarly, along with antivibration rod 480 longitudinally 485 moves with second direction 481, antivibration rod 480 engages Tube Sheet of Heat Exchanger 432, thus gap is not existed (or the gap 487 shown in Fig. 6 A is reduced dimensionally significantly).In this way, antivibration rod 460,480 and Tube Sheet of Heat Exchanger row 410,430, the gap between the Tube Sheet of Heat Exchanger in 450 is (such as, see the gap 467 in Fig. 6 A, 487) reduced dimensionally, and then decrease the amount of contingent move in plane.
Fig. 7 depicts according to the part of alternate embodiment of the present invention in the U-bend portion of the tube bank 500 of steam generator (not shown).As shown in the figure, restrain 500 and comprise multiple Tube Sheet of Heat Exchanger row 510,530,550.First Heat Exchanger pipe row 510 can at the middle part of tube bank 500 or can in end.Be positioned between First Heat Exchanger pipe row 510 and the second Tube Sheet of Heat Exchanger row 530 is antivibration rod 520.Antivibration rod 520 is substantially similar to antivibration rod 220,240, has and is approximately perpendicular to plane 516, and 536 and be greater than Tube Sheet of Heat Exchanger row 510, the thickness 522 of the distance 501 between 530.
Be positioned between the second Tube Sheet of Heat Exchanger row 530 and the 3rd Tube Sheet of Heat Exchanger row 550 is the antivibration rod 540 being substantially similar to the antivibration rod 120,140 shown in Fig. 2.Antivibration rod 540 has haply perpendicular to the thickness 542 of plane 536, plane 536 parallel with plane 556 and separate one distance 508.The thickness 542 of antivibration rod 540 is less than the thickness 522 of antivibration rod 520.Be similar to the thickness 122,142 of antivibration rod 120,140, thickness 542 is subject to the restriction of distance 501, and is substantially equal to but is not more than distance 501.As shown in the figure, antivibration rod 540 is roughly rectilinear, does not have bending or radian along its longitudinal axis.
In this way, the oscillates within planes reduced significantly in tube bank 500 by arranging described antivibration rod 520, advantageously saves cost by arranging according to the antivibration rod 540 of existing scheme simultaneously.Fig. 7 depicts one of multiple alternate embodiments fallen in the scope of the invention.Such as but not limited to, there is antivibration rod 220,240,320,460,480,520 and the existing antivibration rod 120,140,540 of any amount constructing layout arbitrarily within the scope of the invention.In addition, will be further appreciated that antivibration rod 220,240,320,460,480,520 are fixed to one of known ways some in prior art (multiple) structure (not shown) stretched out around tube bank turn of bilge.
Invention above describes and is presented for the object of showing and set forth.It does not mean that is removing property or limits the invention to disclosed concrete form, and according to above instruction, other are changed and change is possible.Described embodiment is chosen and describe, thus has set forth principle of the present invention and practical application best, and then makes those skilled in the art can best to be suitable for being implemented the present invention by the various embodiment of concrete purposes envisioned and various improved form.It means that appended claim is read as other the alternate embodiment of the present invention contained not in prior art institute limited range.
In this article, term " solid " should be understood to do not have inner chamber or opening.In this article, " quantity " should be understood to one or be greater than one integer (such as, multiple).
Claims (15)
1. a steam generator (2), it has primary side and secondary side, and described primary side is used for heated fluid is circulated, and described secondary side circulates for making the fluid heated by the heated fluid circulated in primary side, and described steam generator comprises:
For receiving the low head (10) of heated fluid;
The tube sheet (16) that low head and secondary side are separated;
Have the tube bank (200,300,500) of the many pipes arranged along row and column, described tube bank extends through tube sheet from low head and passes secondary side at least partially; And
The solid antivibration rod (220,320,520) of the first quantity;
Wherein said many pipes comprise:
First pipe row (210,310,510), described first pipe row comprise first pipe (212,312) with the arc center line (214) be arranged in the first plane (216,316,516), and
Second pipe row (230,330,530), each of the solid antivibration rod of described first quantity is all arranged between the first pipe row and the second pipe row, and the second pipe arranges to comprise having and is arranged on the second plane (236,336,536) the second pipe (232,332) of the arc center line (234) in, the second plane is parallel to the first plane and separates a distance (206 with the first plane, 306)
Each of wherein said many pipes all has pipe external diameter (204,304);
Each of the solid antivibration rod of wherein said first quantity all has the thickness (222,322,522) being approximately perpendicular to the first plane and the second plane; And
The thickness of each distance be all greater than between the first plane and the second plane of the solid antivibration rod of wherein said first quantity deducts the difference of pipe external diameter.
2. steam generator according to claim 1 (2), each of the solid antivibration rod (220,520) of wherein said first quantity includes multiple turn of bilge (224,524); The turn of bilge of each of the solid antivibration rod of wherein said first quantity arranges between (210,510) and the second pipe row (230,530) at the first pipe and wriggles; The described turn of bilge of each of the solid antivibration rod of wherein said first quantity is arc.
3. steam generator according to claim 1 (2), each of the solid antivibration rod (320) of wherein said first quantity includes multiple turn of bilge (324); The turn of bilge of each of the solid antivibration rod of wherein said first quantity arranges between (310) and the second pipe row (330) at the first pipe and wriggles; The turn of bilge of each of the solid antivibration rod of wherein said first quantity is zigzag substantially.
4. steam generator according to claim 1 (2), also comprises the solid antivibration rod (240) of the second quantity;
Wherein said many pipes also comprise the 3rd pipe row (250);
Each of the solid antivibration rod of wherein said second quantity is all arranged between the second pipe row (230) and the 3rd pipe row;
Wherein the 3rd pipe row comprise the 3rd pipe (252) with the arc center line (254) be arranged in the 3rd plane (256);
Wherein the 3rd plane is parallel to the second plane (236), and with the second interplanar every a distance (208);
Each of the solid antivibration rod of wherein said second quantity all has the thickness (242) haply perpendicular to the second plane and the 3rd plane;
The thickness of each distance be greater than between the second plane and the 3rd plane of the solid antivibration rod of wherein said second quantity deducts the difference of pipe external diameter (204).
5. steam generator according to claim 4 (2), wherein said many pipes have rounded projections arranged; Wherein restrain (200) and comprise U-bend portion; Each of the solid antivibration rod (220) of wherein said first quantity and the solid antivibration rod (240) of described second quantity is all arranged in U-bend portion.
6. steam generator according to claim 4 (2), wherein said many pipes have the square profile of rotation; Wherein restrain (200) and comprise U-bend portion; Each of the solid antivibration rod (220) of wherein said first quantity and the solid antivibration rod (240) of described second quantity is all arranged in U-bend portion.
7. steam generator according to claim 1 (2), also comprises the antivibration rod (540) of the second quantity;
Wherein said many pipes also comprise the 3rd pipe row (550);
Each of the solid antivibration rod of wherein said second quantity is all arranged between the second pipe row (530) and the 3rd pipe row;
Wherein the 3rd pipe row comprise the 3rd pipe with the arc center line be arranged in the 3rd plane (556);
Wherein the 3rd plane is parallel to the second plane (536), and with the second interplanar every a distance (508);
Each of the solid antivibration rod of wherein said second quantity all has the thickness (542) haply perpendicular to the second plane and the 3rd plane;
The thickness of each of the antivibration rod of wherein said second quantity is less than the thickness of each (522) of the solid antivibration rod (520) of described first quantity.
8. steam generator according to claim 7 (2), the thickness of each (542) distance substantially equaled between the second plane and the 3rd plane (536,556) of the antivibration rod (540) of wherein said second quantity deducts the difference of pipe external diameter.
9. prevent the method vibrated at steam generator (2) internal fixtion pipe, it is interior and be arranged along row and column that described pipe is arranged on tube bank (200,300,400,400 ', 500), and there is piping lane between described row, described method comprises:
There is provided the first pipe row (210,310,410,510), the first pipe row comprise first pipe (212,312,512) with the arc center line (214) be arranged in the first plane (216,316,516);
The solid antivibration rod (220,320,460,520) of the first quantity is provided; And
Second pipe row (230 are provided, 330,430,530), each of the solid antivibration rod of described first quantity is all arranged between the first pipe row and the second pipe row, second pipe row comprise second pipe (232 with the arc center line (234) be arranged in the second plane (236,336,536), 332,432), the second plane is parallel to the first plane and separates a distance (206,306) with the first plane;
Wherein every root Guan Jun has pipe external diameter (204,304);
Each of the solid antivibration rod of wherein said first quantity all has the thickness (222,322,522) being approximately perpendicular to the first plane and the second plane;
The thickness of each distance be all greater than between the first plane and the second plane of the solid antivibration rod of wherein said first quantity deducts the difference of pipe external diameter.
10. method according to claim 9, each of the solid antivibration rod (220,460,520) of wherein said first quantity includes multiple turn of bilge (224,464,524); The turn of bilge of each of the solid antivibration rod of wherein said first quantity arranges between (210,410,510) and the second pipe row (230,430,530) at the first pipe and wriggles; The turn of bilge of each of the solid antivibration rod of wherein said first quantity is arc.
11. methods according to claim 9, each of the solid antivibration rod (320) of wherein said first quantity includes multiple turn of bilge (324); The turn of bilge of each of the solid antivibration rod of wherein said first quantity arranges between (310) and the second pipe row (330) at the first pipe and wriggles; The turn of bilge of each of the solid antivibration rod of wherein said first quantity is zigzag substantially.
12. methods according to claim 9, also comprise:
The solid antivibration rod (240,480) of the second quantity is provided; And
3rd pipe row (250 are provided, 450), each of the solid antivibration rod of described second quantity is all arranged on the second pipe row (230,430) between the and three pipe row, 3rd pipe row comprise the 3rd pipe (252) with the arc center line (254) be arranged in the 3rd plane (256), and the 3rd plane is parallel to the second plane (236) and separates a distance (208) with the second plane;
Each of the solid antivibration rod of wherein said second quantity all has the thickness (242) haply perpendicular to the second plane and the 3rd plane;
The thickness of each distance be all greater than between the second plane and the 3rd plane of the solid antivibration rod of wherein said second quantity deducts the difference of pipe external diameter (204).
13. methods according to claim 12, the solid antivibration rod (460) of wherein said first quantity comprises substantially along the first antivibration rod that the first longitudinal axis (465) is arranged; The solid antivibration rod (480) of wherein said second quantity comprises substantially along the second antivibration rod that the second longitudinal axis (485) being parallel to the first longitudinal axis is arranged; Wherein the first antivibration rod is arranged near the first pipe (412) and the second pipe (432); Wherein the second antivibration rod is arranged near the second pipe and the 3rd pipe; Wherein between the first antivibration rod and the first pipe, there is the first gap (467), between the first antivibration rod and the second pipe, there is the second gap; Wherein between the second antivibration rod and the second pipe, there is third space (487), between the second antivibration rod and the 3rd pipe, there is the 4th gap; Described method also comprises:
Along the first longitudinal axis with the mobile first antivibration rod of first direction (461);
Along the second longitudinal axis with the mobile second antivibration rod of second direction (481), second direction is contrary with first direction, the first gap, the second gap, third space and the 4th gap each all have to move along first direction with the first antivibration rod and to move and the size that reduces along second direction with the second antivibration rod.
14. methods according to claim 13, wherein pipe has Triangle-Profile; Wherein restrain (400) and comprise U-bend portion; Each of the solid antivibration rod (460) of wherein said first quantity and the solid antivibration rod (480) of described second quantity is all arranged in U-bend portion.
15. methods according to claim 9, also comprise:
The antivibration rod (540) of the second quantity is provided; And
3rd pipe row (550) is provided, each of the antivibration rod of wherein said second quantity is all arranged between the second pipe row (530) and the 3rd pipe row, 3rd pipe row comprise the 3rd pipe with the arc center line be arranged in the 3rd plane (556), 3rd plane is parallel to the second plane (536), and with the second interplanar every a distance (508);
Each of the antivibration rod of wherein said second quantity all has the thickness (542) haply perpendicular to the second plane and the 3rd plane;
The thickness of each of the antivibration rod of wherein said second quantity is all less than the thickness of each (522) of the solid antivibration rod (520) of described first quantity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/036,636 US20150083365A1 (en) | 2013-09-25 | 2013-09-25 | Steam generator and method of securing tubes within a steam generator against vibration |
| US14/036,636 | 2013-09-25 | ||
| PCT/US2014/040804 WO2015047463A1 (en) | 2013-09-25 | 2014-06-04 | Steam generator and method of securing tubes within a steam generator against vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105580087A true CN105580087A (en) | 2016-05-11 |
| CN105580087B CN105580087B (en) | 2017-09-05 |
Family
ID=52689922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480052893.2A Active CN105580087B (en) | 2013-09-25 | 2014-06-04 | Steam generator and in steam generator antivibration stationary heat exchangers pipe method |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20150083365A1 (en) |
| EP (1) | EP3050063B1 (en) |
| JP (1) | JP2016540955A (en) |
| KR (1) | KR102277764B1 (en) |
| CN (1) | CN105580087B (en) |
| ES (1) | ES2821909T3 (en) |
| WO (1) | WO2015047463A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123668A (en) * | 2016-08-19 | 2016-11-16 | 北京华福工程有限公司 | It is exclusively used in the U-tube anti-vibrating of heat exchanger bend loss |
| CN106765024A (en) * | 2016-11-24 | 2017-05-31 | 中广核工程有限公司 | Steam Generators in NPP vibrationproof bar structure |
| CN111486740A (en) * | 2020-04-23 | 2020-08-04 | 中国原子能科学研究院 | Heat exchanger and method of assembling the same |
| CN113994166A (en) * | 2019-06-17 | 2022-01-28 | 奥尔堡塞斯帕股份有限公司 | Heat exchanger with tube bundle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140116360A1 (en) * | 2012-10-31 | 2014-05-01 | Westinghouse Electric Company Llc | Method and apparatus for securing tubes in a steam generator against vibration |
| JP6806541B2 (en) * | 2016-11-21 | 2021-01-06 | 三菱重工業株式会社 | Vibration control structure of heat transfer tube group |
| WO2019023655A1 (en) * | 2017-07-27 | 2019-01-31 | Kellogg Brown & Root Llc | Method for revamping vertical converters having a flanged pressure shell extension for housing an internal heat exchanger |
| CN114935270A (en) * | 2022-06-07 | 2022-08-23 | 海阳科技股份有限公司 | Heat exchange assembly capable of realizing heat exchange of polyamide melt and laminar flow uniformity and tubular heat exchanger |
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| CN106765024A (en) * | 2016-11-24 | 2017-05-31 | 中广核工程有限公司 | Steam Generators in NPP vibrationproof bar structure |
| CN113994166A (en) * | 2019-06-17 | 2022-01-28 | 奥尔堡塞斯帕股份有限公司 | Heat exchanger with tube bundle |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015047463A1 (en) | 2015-04-02 |
| EP3050063A4 (en) | 2017-06-07 |
| KR102277764B1 (en) | 2021-07-14 |
| EP3050063A1 (en) | 2016-08-03 |
| ES2821909T3 (en) | 2021-04-28 |
| EP3050063B1 (en) | 2020-07-15 |
| JP2016540955A (en) | 2016-12-28 |
| KR20160060134A (en) | 2016-05-27 |
| US20150083365A1 (en) | 2015-03-26 |
| CN105580087B (en) | 2017-09-05 |
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