CN103256838A - All-welded corrugated sheet heat exchanger - Google Patents
All-welded corrugated sheet heat exchanger Download PDFInfo
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- CN103256838A CN103256838A CN2013101694180A CN201310169418A CN103256838A CN 103256838 A CN103256838 A CN 103256838A CN 2013101694180 A CN2013101694180 A CN 2013101694180A CN 201310169418 A CN201310169418 A CN 201310169418A CN 103256838 A CN103256838 A CN 103256838A
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Abstract
The invention belongs to the technical field of heat exchange equipment, and particularly relates to a novel all-welded corrugated sheet heat exchanger. The invention comprises a welding plate bundle which is formed by a plurality of corrugated thin plates and sealing strips together, wherein a liquid inlet hole at the outermost side of the welding plate bundle is welded with a blind plate or a plate pass liquid inlet pipe unit, a liquid outlet hole at the outermost side of the welding plate bundle is welded with the blind plate or the plate pass liquid outlet pipe unit, and the welding plate bundle, the blind plate, the plate pass liquid inlet pipe unit, the plate pass liquid outlet pipe unit and box grooves at the upper side and the lower side form a heat exchange matrix together; the heat exchange matrix is clamped in a clamping mechanism consisting of a base plate, a clamping plate, a reinforcing ring and a clamping stud. The uniform and continuous geometric elements and the flexible welding structure of the corrugated thin plate overcome the extremely sensitive high-risk defects of the corrugated thin plate such as thermal stress, load stress concentration and the like, realize high-efficiency and compact welding plate bundles, and the heat exchanger still has good safe and reliable performance under the conditions of high temperature, high pressure, and harsh pressure and temperature change.
Description
Technical field
The invention belongs to the heat transmission equipment technical field, be specifically related to a kind of novel full welding corrugated sheet heat exchanger.
Background technology
Heat exchange element is the critical piece that constitutes heat transmission equipments such as various heat exchangers, air cooler, evaporimeter, preheater, and its form and of a great variety mainly is divided into tube bank and plate bundle two big classes.
The tube bank heat exchange element that constitutes with various steel pipes (for example light pipe, screwed pipe, gear piece pipe, bellows tube, distortion flat tube etc.) has the history of last 100 years manufacturing and application, manufactures and designs with use experience all comparatively ripe.The tube bank heat exchange element is all-welded structure, and advantage is to bear very high pressure and temperature, but the heat exchange efficiency of tube bank is lower and bulky.
The intrafascicular common use corrugated sheet of plate is as heat exchange element, these restrain the incomparable excellent characteristics of heat exchange element and enjoy favor plate bundle heat exchange element because have economy, efficient, compactness, little temperature difference heat exchange etc., but the plate bundle class heat transmission equipment of the overwhelming majority is the removable structure of rubber strip sealing in the prior art, because of the restriction of encapsulant and removable structure, the heat resisting and pressure resisting performance of plate bundle class heat transmission equipment can not show a candle to tube bank class heat transmission equipment, thereby makes that the application scenario limitation of plate bundle class heat transmission equipment is very big.
How to make the very big thin plate of welding difficulty, make full welded plate bundle by unconventional corrugated sheet structural design and welding approach, make it namely pass on the excellent specific property of corrugated sheet high-efficiency compact, the safety and reliability that have high temperature high voltage resistant again become the nearly problem of seeking of constantly researching and developing during the last ten years both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of full welding corrugated sheet heat exchanger, this heat exchanger has overcome thermal stress and loading stress and has concentrated and wait the extremely high-risk defective of sensitivity of corrugated sheet, not only realize the corrugated sheet welded plate bundle structure of high-efficiency compact, and comparatively still had good safety and reliability under the exacting terms at HTHP and pressure, temperature variation.
For achieving the above object, the present invention has adopted following technical scheme: a kind of full welding corrugated sheet heat exchanger, this heat exchanger comprises corrugated sheet, described corrugated sheet is made of water conservancy diversion district and heat transfer zone, described water conservancy diversion district is semicircle shape, the rectangular shape of described heat transfer zone, the water conservancy diversion district is symmetrically distributed in the both sides of heat transfer zone, and two water conservancy diversion districts and heat transfer zone are connected with each other as a whole; Be respectively arranged with inlet opening and the fluid hole that runs through plate body in described two water conservancy diversion districts; The plate body of described corrugated sheet is rugged fluctuating shape or wavy, and the two the common residing plane of hole lateral edges and the plane that surrounds of the outer ledge of corrugated sheet of the inlet opening of corrugated sheet and fluid hole is different;
Described some corrugated sheets weld successively and abut in together, and described some corrugated sheets constitute the welded plate bundle jointly with the strip of paper used for sealing that is welded on these some corrugated sheet outsides; The inlet opening center of the intrafascicular corrugated sheet of welded plate all is on the same plate journey feed liquor straight line, the fluid hole center is on the same plate journey fluid straight line, described plate journey feed liquor straight line and plate journey fluid straight line are parallel to each other, be in the inlet opening of the outermost corrugated sheet of welded plate bundle and plate journey feed tube unit or blind plate and weld together, be in the fluid hole of the outermost corrugated sheet of welded plate bundle and plate journey drain pipe unit or blind plate and weld together;
The plate face of the adjacent corrugations thin plate that welded plate is intrafascicular against each other together, this abuts in and forms intrafascicular plate journey passage and the shell side passage of welded plate between together the adjacent corrugated sheet; Together the inlet opening against each other of intrafascicular two corrugated sheets of welded plate is welded together to form the inlet opening weld seam mutually, and the described corrugated sheet that is in inlet opening, the inlet opening weld seam on the same plate journey feed liquor straight line and is close together surrounds the inlet opening passage that is connected with plate journey feed tube unit jointly; Together the fluid hole against each other of intrafascicular two corrugated sheets of welded plate is welded together to form the fluid hole weld seam mutually, and the described corrugated sheet that is in inlet opening, the fluid hole weld seam on the same plate journey fluid straight line and is close together surrounds the fluid hole passage that is connected with plate journey drain pipe unit jointly;
Together the outer ledge against each other of intrafascicular two corrugated sheets of welded plate welds together mutually and constitutes the outer weld seam; The parallel edge that is arranged in the welded plate bundle of the strip of paper used for sealing of a plurality of shell shapes is parallel to the left and right sides of plate journey feed liquor rectilinear direction; The edge of described strip of paper used for sealing is curved arc shape or bending perpendicular to the cross section of its length direction; Described strip of paper used for sealing linked to each other successively in being between the planar both ends of the surface of plate of welded plate bundle, and strip of paper used for sealing along the two ends of its width respectively with two adjacent outer weld seam welding, the outside that extends to corrugated sheet water conservancy diversion district along the two ends up and down of its length direction along described outer weld seam of described strip of paper used for sealing;
The both sides up and down of described welded plate bundle all are covered with and are welded with the case groove, the side margins of described case groove and the end edge of strip of paper used for sealing are connected with each other, be provided with cavity between described case groove and the welded plate bundle, and the side away from the welded plate bundle of case groove is provided with the shell side pipeline that is connected with described cavity;
Described welded plate bundle, up and down case groove, plate journey feed tube unit, the plate journey drain pipe unit of both sides are connected with each other by welding and constitute the heat exchange matrix to be in the welded plate bundle; Described clamp mechanism namely is parallel to plate journey feed liquor straight line from the both sides, front and back of heat exchange matrix both sides with the clamping of heat exchange matrix therein, and clamp mechanism makes various piece in the heat exchange matrix all clamp to be pressed against together; The both sides up and down and the left and right sides that are arranged on perpendicular to plate journey feed liquor rectilinear direction of described heat exchange matrix are free end;
The plate journey passage that forms between described plate journey feed tube unit, inlet opening passage, the adjacent corrugations thin plate, fluid hole passage, plate journey drain pipe unit constitute the plate journey passage of heat exchanger jointly;
The shell side passage that forms between gap between enclosed cavity, strip of paper used for sealing and the corrugated sheet between shell side pipeline on the described case groove, case groove and the welded plate bundle, the adjacent corrugations thin plate constitutes the shell side passage of heat exchanger jointly.
This full welding corrugated sheet heat exchanger can also be able to further realization in the following manner:
Preferably, described corrugated sheet is one group with two, and the inlet opening on these two corrugated sheets corresponds to each other to recline and weld together, and fluid hole also corresponds to each other to recline and welds together; Some groups of corrugated sheets link to each other successively and bear against together; These both sides, front and back that bear against some groups of corrugated sheets together are respectively arranged with first side wave line thin plate and tail side wave line thin plate, described first side wave line thin plate and tail side wave line thin plate all by the outer weld seam therewith some groups of corrugated sheets link to each other, and the upper edge of first side wave line thin plate and tail side wave line thin plate is connected together with the case slot welding that is arranged on welded plate bundle upside, and the lower edge of first side wave line thin plate and tail side wave line thin plate is connected together with the case slot welding that is arranged on welded plate bundle downside; The inlet opening of first side wave line thin plate and the inlet opening of tail side wave line thin plate weld together with plate journey feed tube unit or blind plate respectively, and the fluid hole of the inlet opening of first side wave line thin plate and tail side wave line thin plate welds together with plate journey drain pipe unit or blind plate respectively; Described first side wave line thin plate, some groups of corrugated sheet, tail side wave line thin plates against each other constitute the welded plate bundle jointly.
Preferably, the plate face in the water conservancy diversion district of described corrugated sheet is provided with the water conservancy diversion ripple, and the plate face of described heat transfer zone is provided with the heat transfer ripple.
Preferably, described case groove comprises laminal boxboard and end plate;
Described boxboard is the curved arc shape, and the two ends along the arc length direction of boxboard link to each other with the end of the strip of paper used for sealing of described welded plate bundle both sides and weld together;
Described end plate is set to two, and the two end plates branch is located at the both sides, front and back of boxboard, and the two end plates one side is connected together with the curved arc shape edge joint weld of boxboard, then welds together with the outer weld seam that is arranged on welded plate Shu Qianhou both sides on the other hand;
Described boxboard, end plate, strip of paper used for sealing, welded plate bundle are connected with each other and surround a cavity; Side away from the welded plate bundle of described boxboard is provided with the shell side pipeline that is connected with described cavity;
Be provided with the gap between described end plate and plate journey feed tube unit, end plate and plate journey drain pipe unit, end plate and the blind plate.
Preferably, described plate journey feed tube unit comprises feed liquor rebound and the plate journey feed tube that welds together, described feed liquor rebound cover cap is at the outermost inlet opening place of welded plate bundle, the plate face of feed liquor rebound is provided with the opening that matches with described inlet opening aperture size, and the inlet opening weld seam at the edge of opening of described feed liquor rebound and inlet opening place welds together;
Described plate journey drain pipe unit comprises fluid rebound and the plate journey drain pipe that welds together, described fluid rebound cover cap is at the outermost fluid hole place of welded plate bundle, the plate face of fluid rebound is provided with the opening that matches with described fluid hole aperture size, and the fluid hole weld seam at the edge of opening of described fluid rebound and fluid hole place welds together.
As further preferred version of the present invention, but the boxboard plate body between the end plate of described boxboard both sides is provided with the expansion loop of elastic compression, and the residing anchor ring of described expansion loop is perpendicular to plate journey feed liquor straight line.
Preferably, described clamp mechanism comprises backing plate, clamping plate, reinforcing ring and clamping double-screw bolt;
Described backing plate is tabular, and backing plate is set to two, and two backing plates abut in the both sides, front and back of welded plate bundle respectively; The thickness of slab of described backing plate is all identical with the thickness of slab of feed liquor rebound, fluid rebound, and between described backing plate and the feed liquor rebound, be provided with the gap between backing plate and fluid rebound and backing plate and the blind plate;
Described flat clamping plate also is set to two, the thickness of slab of clamping plate is greater than the thickness of slab of backing plate, two clamping plates are separately positioned on the outside of corresponding backing plate, and also be provided with the through hole that supplies plate journey feed tube and plate journey drain pipe to pass on the clamping plate, be provided with the gap between the outside tube wall of the inwall of this described through hole and described plate journey feed tube and plate journey drain pipe;
The plate face size of described clamping plate is greater than the plate face size of corrugated sheet, and described clamping double-screw bolt passes stretching out at the plate face in the corrugated sheet outside and with backing plate, the welded plate bundle, plate journey feed tube unit, the plate journey drain pipe unit that are between two backing plates of clamping plate and pushes tightly and abut in together;
The reinforcing ring of described ring flat-plate shape is arranged on the outside that deviates from the welded plate bundle of clamping plate, and reinforcing ring is set in respectively on the tube wall of plate journey feed tube and plate journey drain pipe, the end face towards welded plate bundle one side of described reinforcing ring abuts on the clamping plate tightly, and the interior ring edge of the end face that deviates from welded plate bundle one side of reinforcing ring and the tube wall of plate journey feed tube or plate journey drain pipe weld together.
Preferably, the sheet δ 1 of described corrugated sheet is 0.6～1.2mm, and the material of corrugated sheet is stainless steel or titanium or nickel-base alloy;
The sheet δ 2 of described strip of paper used for sealing is 2～2.5 times of corrugated sheet sheet δ 1;
If the length along the corresponding string of outer arc of the cross section of strip of paper used for sealing length direction of curved arc shape strip of paper used for sealing is L, the high difference of the biside plate face of contoured corrugated sheet is H, then described chord length L=2H;
The high h of arc bow that outer arc along the cross section of the strip of paper used for sealing length direction string corresponding with it of described curved arc shape strip of paper used for sealing formed is 1.8～2.2mm;
The material of described strip of paper used for sealing is identical with the material of corrugated sheet.
As further preferred version of the present invention, described expansion loop arranges quantity more than one along plate journey feed liquor rectilinear direction, and the spacing J between the two adjacent expansion loop centers presses following formula and determines:
J＝4/（T
B×α
B）mm
In the following formula: T
BBe the maximum temperature of the medium by the case groove, unit is ℃;
α
BBe the linear expansion coefficient of case groove material, unit is 1/ ℃.
As preferred version of the present invention, the shape of described backing plate and the shape of corrugated sheet match, and the two ends up and down of backing plate are respectively arranged with upper end open and lower ending opening that the outer shape with feed liquor rebound and fluid rebound matches;
The plate face that deviates from the welded plate bundle of the plate face that deviates from the welded plate bundle of described backing plate, the plate face that deviates from the welded plate bundle of feed liquor rebound, fluid rebound, to be in the outer panel face of case groove end plate of welded plate bundle the same side in the same plane with described backing plate.
Main theory involved in the present invention according to and compare the beneficial effect that has with prior art as follows:
1), related main theory foundation
The principal element that influences the safety and reliability of plate sheet welding plate bundle has loading stress and thermal (temperature difference) stress.Loading stress is to produce under the effect of external applied load, and the size of loading stress is relevant with the structure of the size of load and welded plate bundle.Thermal (temperature difference) stress is then caused by the temperature difference, and the temperature difference comes from the residing heat exchange operating mode of heat exchange element, and the size of temperature approach is relevant with the heat transferring medium temperature difference, warm variable Rate and restraining structure.
Expanding with heat and contract with cold is the intrinsic physical characteristics of all metal materials, when having variations in temperature Δ t, namely can produce linear strain.Two metallic article A and B under welding constraints, the two self temperature t
AAnd t
BThe temperature difference appears, and namely can be because producing linear strain difference ε
tAnd cause thermal (temperature difference) stress σ at constraint direction
t, σ
tValue as follows:
σ
t＝E×ε
t；ε
t＝α×（t
A－t
B）
In the following formula: E is the elastic modelling quantity of heat exchange element, and unit is MPa;
α is linear expansion coefficient, and unit is 1/ ℃;
t
ABe the temperature value of metallic article A, unit is ℃;
t
BBe the temperature value of metallic article B, unit is ℃.
The thickness of temperature variable Rate and metallic article is inversely proportional to, and when the difference in thickness of two metallic article A and B was big, the main warm variable Rate by the less metallic article of thickness of the size of the two temperature approach was determined.The response that to be thin plate become temperature of the less metallic article of thickness is very responsive, and self temperature difference in the unit interval is slab much larger than the bigger metallic article of thickness.Thereby under welding constraints, make thin plate produce the moment thermal (temperature difference) stress.
Be example with material 316, linear expansion coefficient α=19 * 10 of material
-6/ ℃, elastic modulus E=206 * 10
3MPa, allowable stress ［ σ
FairBe respectively 137～107MPa(20～500 ℃ values and select from GB-150);
Δ t=［ σ then
Fair］/(E * α)=27～35 ℃
Namely under the rigid constraint condition, when self temperature difference of light sheet material surpassed 27～35 ℃, the stress value that line strain causes will surpass its allowable stress value.
From the above, thermal (temperature difference) stress is than its main influence factor that lost efficacy and can not be ignored of the easier initiation of loading stress for the very little plate sheet welding plate Shu Eryan of thickness.
2), a plurality of corrugated sheets among the present invention and strip of paper used for sealing constitute the welded plate bundle jointly, be connected with each other along weld seam or outer weld seam by the hole between the intrafascicular adjacent corrugations thin plate of welded plate, described outer weld seam by the straight flange outer weld seam that is arranged on the corrugated sheet left and right sides and be arranged on corrugated sheet up and down the semicircle periphery outer weld seam of both sides constitute, strip of paper used for sealing then is welded on the commissure, straight flange outer between the adjacent corrugations thin plate; The upside of welded plate bundle and downside are provided with the case groove, and described case groove welds together by the end of laminal boxboard and strip of paper used for sealing, and the case groove also welds together by laminal end plate and the outermost semicircle periphery of welded plate bundle outer weld seam.
Because intrafascicular corrugated sheet and the strip of paper used for sealing of welded plate is thin plate, and boxboard and end plate in the case groove that welds together with the welded plate bundle also are thin plate, thereby the present invention has reduced the difference in thickness between corrugated sheet, strip of paper used for sealing, boxboard and the end plate effectively, avoided producing between the bigger metallic article of two difference in thickness the welding constraint, the technical scheme among the present invention has reduced thermal (temperature difference) stress effectively and even has avoided the generation of thermal (temperature difference) stress thus.
3), the outermost inlet opening of welded plate bundle and blind plate or plate journey feed tube element solder be together among the present invention, the outermost fluid hole of welded plate bundle and blind plate or plate journey drain pipe element solder together, described welded plate bundle, blind plate, plate journey feed tube unit, plate journey drain pipe unit and up and down the case groove of both sides constitute the heat exchange matrix jointly.
Described welded plate bundle welds together along weld seam and blind plate by the hole, same, the inlet opening of welded plate bundle welds together along the feed liquor rebound in weld seam and the plate journey feed tube unit by the hole at inlet opening place, and the fluid hole of welded plate bundle then welds together along the fluid rebound in weld seam and the plate journey drain pipe unit by the hole at fluid hole place.Be provided with the gap between fluid rebound, end plate and the blind plate in feed liquor rebound in the end plate of heat exchange matrix raising middle flask groove and the plate journey feed tube unit, end plate and the plate journey drain pipe unit.
The heat exchange matrix is folded in the clamp mechanism, and described clamp mechanism comprises backing plate, clamping plate, reinforcing ring and clamping double-screw bolt.Between described backing plate and the feed liquor rebound, be provided with the gap between backing plate and fluid rebound and backing plate and the blind plate.In addition, also be provided with the through hole that passes for the plate journey feed tube in the plate journey feed tube unit and the plate journey drain pipe in the plate journey drain pipe unit on the described clamping plate, be provided with the gap between the outside tube wall of the inwall of this described through hole and described plate journey feed tube and plate journey drain pipe.
Because the existence in above-mentioned various gaps, thereby make the both sides up and down and the left and right sides that are arranged on perpendicular to plate journey feed liquor rectilinear direction of described heat exchange matrix be free end, in the time of also namely in being in heat transfer process, welded plate bundle in the heat exchange matrix can move along the direction that is parallel to the clamping plate plate face in the clamp mechanism, thereby constitute the scheme of rigid constraint with respect to clamp mechanism heat exchanging matrix in the conventional art, technical scheme among the present invention realized flexible constraint and gone constraint theory design, thereby further reduced thermal (temperature difference) stress effectively and even avoided the generation of thermal (temperature difference) stress.
4), the structure of corrugated sheet is the water conservancy diversion district that two semicircle shapes are set in the both sides of rectangular-shaped heat transfer zone among the present invention, be that corrugated sheet among the present invention is two ends semicircular in shape and figure is the en plaque geometric shape of rectangle, inlet opening and fluid hole are opened in respectively on the plate face in semicircle water conservancy diversion district, two ends of corrugated sheet.The geometric element of the more conventional rectangle template of this structure of corrugated sheet is even continuously among the present invention, stress uniform more become ideal and stress concentration minimum.
5), the edge of strip of paper used for sealing is curved arc shape or bending perpendicular to the cross section of its length direction among the present invention, it also is the strip of paper used for sealing employing bow section among the present invention, increment changes several sections small elastic deformations into thereby the x wire that the welded plate bundle is produced because of the temperature difference expands, and has reduced the influence of thermal stress to the outer weld seam.This technical scheme among the present invention has not only been eliminated the bloated increment influence of x wire of welded plate bundle, also makes Welding Structure be easy to realize simultaneously.
6) but, have the expansion loop of elastic telescopic on the case groove among the present invention, the setting of expansion loop is in the controlled scope of segmentation the axial thermal strain of case groove, thereby reduced the influence that case groove and strip of paper used for sealing are welded to connect the back thermal strain, also namely weaken the bloated increment butt welding influence of relay part in succession of axial line that case groove Yin Wendu causes, improved security and the reliability of heat exchanger.
7), in sum, the present invention is different from traditional rectangular slab welded plate bundle, even and the continuous geometric element of corrugated sheet and flexible Welding Structure among the present invention, the line strain that will produce because expanding with heat and contract with cold is converted to strain or the controlled range distortion of permission, and adopted the plate bundle structural design of removing constraint to eliminate or to have reduced effect of constraint value, it is independently flexible that the heat exchange matrix is presented in the rigidity clamp mechanism, thereby avoided producing the possibility of high-risk thermal (temperature difference) stress effectively, overcome thermal stress and loading stress and concentrate to have waited the extremely high-risk defective of sensitivity of corrugated sheet, not only realized the corrugated sheet welded plate bundle of high-efficiency compact, and in HTHP and pressure, temperature variation comparatively under the exacting terms, this heat exchanger still has good safety and reliability.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of corrugated sheet.
The A-A cutaway view of Fig. 2 of Fig. 3.
Fig. 4 is the structural representation of heat exchange matrix.
Fig. 5 is the structural representation that is linked together along weld seam by the hole between the two adjacent wave line thin plates.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the structural representation that the welded plate bundle is connected with case groove, plate journey feed tube unit and plate journey drain pipe unit.
Fig. 8 is the I portion enlarged diagram of Fig. 7.
Fig. 9 is the II portion enlarged diagram of Fig. 7.
Figure 10 is the III portion enlarged diagram of Fig. 7.
Figure 11 is the structural representation of strip of paper used for sealing.
Figure 12 is the F-F cutaway view of Figure 11.
Figure 13 is the structural representation of case groove.
Figure 14 is that the K of Figure 13 is to view.
Figure 15 is the draw bail schematic diagram of welded plate bundle and clamp mechanism.
Figure 16 is the structural representation of rebound.
Figure 17 is the structural representation of backing plate.
Figure 18 is heat exchange process schematic diagram of the present invention.
Figure 19～22nd, manufacturing process schematic diagram of the present invention.
The implication of mark is as follows among the figure:
10-corrugated sheet, 11-water conservancy diversion district, 12-heat transfer zone 13A-inlet opening
13B-fluid hole 14-water conservancy diversion ripple 15-heat transfer ripple 16-outer
17-hole is along weld seam 181-straight flange outer, 18-outer weld seam
Weld seam 19-hole, 182-semicircle periphery outer is along weld seam 20-strip of paper used for sealing
21-outer arc, 22-strip of paper used for sealing weld seam, 30-case groove, 31-boxboard
32-end plate, 321-end plate weld joint, 33-shell side pipeline, 34-expansion loop
40-plate journey feed tube unit, 41-feed liquor rebound, 42-plate journey feed tube
50-plate journey drain pipe unit, 51-fluid rebound, 52-plate journey drain pipe
60-blind plate, 70-clamp mechanism, 71-backing plate, 711-upper end open
712-lower ending opening, 72-clamping plate, 73-reinforcing ring 74-clamping double-screw bolt
80-welded plate bundle
The specific embodiment
1. followingly at first by reference to the accompanying drawings each part in this heat exchanger is illustrated one by one.
1.1 corrugated sheet
Shown in Fig. 2,3, corrugated sheet 10 is core heat transfer components of whole heat exchanger, and the plate two ends of corrugated sheet 10 are semicircular water conservancy diversion district 11, and the stage casing is the heat transfer zone 12 of rectangular rectangle.Inlet opening 13A and fluid hole 13B for heat transferring medium A turnover among Fig. 1 are opened in leaning on the plate face of inlet side head of semicircle water conservancy diversion district 11 respectively.As shown in Figure 2, design has the water conservancy diversion ripple 14 of different angles on the plate face in the water conservancy diversion district 11 of two semicircles, the augmentation of heat transfer ripple 15 of the various different purposes of design on the plate face of rectangular section heat transfer zone 12.
As shown in Figure 3, the hole lateral edges of the inlet opening 13A of corrugated sheet 10 and fluid hole 13B is that the hole of corrugated sheet 10 is along being that the outer of corrugated sheet 10 is positioned at different different basal planes with the outer ledge of corrugated sheet 10.
Shown in Fig. 5,6,8, when two corrugated sheets 10 turn over the opposition button, the hole of two corrugated sheets 10 forms the hole along opposite joint along being close to alignment relatively, the hole is connected into a pair of plate group with two corrugated sheets 10 by eyelet welding along implementing welding, namely link together along weld seam 19 by the hole between the plate group that is linked to each other by eyelet welding.The support contact of equal portion forms heat exchanging medium passage again between the support contact to the formation intersected with each other of the ripple of plate group is close for each.Hence one can see that, and the frame mode of plate group can bearing load pressure among the present invention, forms mazy heat exchanging medium passage again naturally.
The continuous geometric element of the round square of corrugated sheet 10 and the ripple struction of equal portion among the present invention make corrugated sheet 10 have evenly continuous elastic deformation characteristic, the restraint stress of the rigidity that the low temperature difference line strain that disappeared produces.The thickness δ 1 of corrugated sheet 10 is 0.6～1.2mm, δ 1 is preferably 0.6～0.8mm, corrugated sheet 10 selects for use the thin plate compacting of materials such as stainless steel, titanium, nickel-base alloy to form, and the board dimension scope is 600 * 2000mm～1200 * 4000mm, but the maximum plate bundle area of assembly welding is 3200M
2
1.2 strip of paper used for sealing
Shown in Figure 11,12, the cross section of strip of paper used for sealing 20 is bow shape, and the material of strip of paper used for sealing 20 is identical with the material of corrugated sheet 10.As shown in figure 12, the thickness of slab δ 2 of strip of paper used for sealing 20 is the thickness of slab δ 1 of 2～2.5 times of corrugated sheets 10; If the length along the outer arc 21 corresponding strings of the cross section of strip of paper used for sealing length direction of curved arc shape strip of paper used for sealing 20 is L, the high difference of the biside plate face of the corrugated sheet 10 of Fig. 3 mesorelief shape is H, then described chord length L=2H; The high h of arc bow that outer arc 21 strings corresponding with it along the cross section of strip of paper used for sealing length direction of described curved arc shape strip of paper used for sealing 20 are formed is 1.8～2.2mm.
The above-mentioned shape of strip of paper used for sealing 20 and structure make in the welded plate bundle 80 the linear thermal strain that produces be changed into several sections can little curved elastic deformation, thereby has reduced the influence of thermal stress to outer weld seam 18 greatly.
Strip of paper used for sealing 20 can make by grinding pulling method.
1.3 case groove
Shown in Figure 13,14, case groove 30 comprises laminal boxboard 31 and end plate 32, described boxboard 31 is provided with shell side pipeline 33, but and have the expansion loop 34 of elastic compression on the boxboard 31, the setting of expansion loop 34 is in the controlled scope of segmentation the axial thermal strain of case groove 30, has reduced the influence of thermal strain after case groove 30 is welded to connect with strip of paper used for sealing 20 greatly.Spacing J between the expansion loop 34 presses following formula and determines:
J＝4/（T
B×α
B）mm
In the following formula: T
BBe the maximum temperature of the medium by the case groove, unit is ℃;
α
BBe the linear expansion coefficient of case groove material, unit is 1/ ℃.
The axial length of case groove 30 is relevant with the area of the welded plate bundle 80 of design and assembly, when case groove 30 required axial lengths less than the J value, case groove 80 can not arrange expansion loop 34.
1.4 welded plate bundle
Shown in Fig. 7,10, welded plate bundle 80 mainly is made of corrugated sheet 10 and strip of paper used for sealing 20.
The main body of welded plate bundle 80 is turned over the corrugated sheet 10 of opposing button by two of N groups and is constituted along welding through the hole, and concrete, the plate group that is formed by connecting by eyelet welding stacks successively, and the welding outer is formed by connecting, shown in Figure 19～21.
As shown in figure 10, after the outer of two corrugated sheets 10 periphery welded closure, N the cavity that is communicated with formation with welding hole both constituted the plate journey passage in the welded plate bundle 80, passed in and out for the A medium.Any two groups are turned between the corrugated sheet 10 of opposing button all that soldering and sealing has strip of paper used for sealing 20, the two ends up and down of strip of paper used for sealing 20 extend to 11 places, water conservancy diversion district of corrugated sheet 10, constitute the shell side passage in the welded plate bundle 80 between strip of paper used for sealing and the corrugated sheet and between two corrugated sheet groups.
1.5 heat exchange matrix
As shown in Figure 4, the heat exchange matrix is by welded plate bundle 80, case groove 30, plate journey feed tube unit 40, plate journey drain pipe unit 50, the blind plate 60 of both sides constitute jointly up and down.
At the place, two ends up and down of welded plate bundle 80 button weldering case groove 30, and make boxboard 31 soldering and sealing of case groove 30 in the outside, the end of strip of paper used for sealing 20, the end plate 32 of case groove 30 is welded on weld seam 182 places, welded plate bundle 80 outermost semicircle periphery outer by end plate weld joint 321, thereby the case groove cavity, the shell side passage in the welded plate bundle 80 that form between shell side pipeline 33, case groove 30 and the welded plate bundle 80 communicate with each other and form so-called shell side passage, for the turnover of B medium, as shown in figure 18.
As shown in Figure 4, the inlet opening of first side wave line thin plate that is in the front end of welded plate bundle 80 welds with feed liquor rebound 41 and fluid rebound 51 respectively mutually with fluid hole, and the equal soldering and sealing of inlet opening and fluid hole place of tail side wave line thin plate that is in the rear end of welded plate bundle 80 has blind plate 60.Plate journey passage in plate journey feed tube 42, inlet opening passage, the welded plate bundle 80, fluid hole passage, plate journey drain pipe 52 are communicated with the so-called plate journey passage of formation successively, for the turnover of A medium, as shown in figure 18.
Shown in Fig. 8,10, the ripple that the heat-transfer surface of welded plate bundle 80 also namely turns on the corrugated sheet plate face of opposing button becomes positive and negative staggered, thereby form intensive support contact and fluid passage, support contact had both guaranteed rigidity and the load performance of welded plate bundle 80, played the flow-disturbing effect to medium again.A becomes the in opposite directions membranaceous fluidised form of adverse current along the corrugated plating face with the B medium in runner separately, the turbulence effect that fluid has more been strengthened in staggered ripple and the violent disturbance under the fluid flow state of contact, thereby can obtain the coefficient of heat transfer than the high several times of tube bank heat transfer element column fluidised form, improve heat exchange efficiency greatly.
1.6 clamp mechanism
Shown in Fig. 1,15, described clamp mechanism 70 mainly is made of backing plate 71, clamping plate 72, reinforcing ring 73 and clamping double-screw bolt 74.
The thickness of backing plate 71 is all consistent with the thickness of feed liquor rebound 41 and fluid rebound 51, backing plate 71 is close to the corrugated plating face of the head and the tail corrugated sheet of welded plate bundle 80 rear and front ends, the clamping force that makes clamping plate 72 by backing plate 71 apply in the corrugated surface of head and the tail corrugated sheet and and then be passed to welded plate bundle 80, finally reach the purpose of plate bundle pressure-bearing.
Do not have any being welded to connect between described welded plate bundle 80 and backing plate 71 and the clamping plate 72, when expanded by heating, the direction that welded plate bundle 80 can limit along backing plate 71 plate faces is relative to tangentially moving.
As shown in figure 15, reinforcing ring 73 is welded on the outside tube wall of plate journey feed tube 42 and plate journey drain pipe 52 when mounted, reinforcing ring 73 is close to clamping plate 72 when welding, all constitute card shape structure at this moment between reinforcing ring 73 and the feed liquor rebound 41 and between reinforcing ring 73 and the fluid rebound 51, the bending moment force that produces when this card shape structure makes installing plate journey feed tube 42 and plate journey drain pipe 52 only acts on clamping plate 72, thus the adverse effect that reduces and even welded plate bundle 80 has been produced when having avoided installing.
As shown in figure 15, because the elongation that is heated of the parts in welded plate bundle 80 and the clamp mechanism is different, so the present invention is between the upper end open 711 of backing plate 71 and feed liquor rebound 41 and be provided with gap delta 3 between lower ending opening 712 and the fluid rebound 51; All leave gap delta 4 between through hole on the clamping plate 72 and the plate journey feed tube 42 and between the through hole on the clamping plate 72 and the plate journey drain pipe 52, gap delta 3 and the setting of gap delta 4 have been avoided interfering the constraint that forms because of the different generations of the elongation that is heated between welded plate bundle 80 and the clamping plate 72, and have prevented that stress because of the aforementioned constraint generation from causing the welding seam failure between welded plate bundle 80 and feed liquor rebound 41 and welded plate bundle 80 and the fluid transition version 51.Minimum value formula between gap delta 3 and the gap delta 4 is as follows:
δ
L＝0.375α
p×（t
p－t
0）×L
0
In the following formula: α
pBe the linear expansion coefficient of welded plate beam material, unit is 1/ ℃.
t
pBe the maximum operation (service) temperature of welded plate bundle, unit is ℃;
t
0Be environment temperature, unit is ℃;
L
0Be the adapter centre-to-centre spacing under the environment temperature, unit is mm.
2. the assembling process below in conjunction with Fig. 1,18～22 pairs of these heat exchangers elaborates
As shown in figure 19, through the compacting of die pressure machine and punch shears punching, prepare monolithic corrugated sheet 10.
Monolithic corrugated sheet 10 adopts circular and the combined geometry design of rectangle, and the design of plate face is suppressed the ripple of different purposes with mould.The welding position is edge, hole and the outer of corrugated sheet 10, and edge, hole and the outer of corrugated sheet 10 is arranged on different basal planes in opposite directions, makes it treat that the neat argonaut welding of the satisfied rule in welding hole edge and outer connects requirement by the mould punching.
Concrete, the main technique route of preparation monolithic corrugated sheet 10 is the I blanking; → II compacting figure; → III compacting two ends; → IV crop; → V is cut the limit; The punching of → VI; → VII is repaiied and is cut trimming; The check of → VIII; It is to be welded that → IX is cleaned warehouse-in.
As shown in figure 20, two corrugated sheets that compacting is formed turn over opposes to be buckled together, then in hole that two corrugated sheets are docking together each other along locating to implement eyelet welding, two corrugated sheets after the welding 19 are connected to each other to one group by the two hole along the hole of locating along weld seam.
Should strict check that by specification requirement the inspection step is visual inspection after the welding; Painted; Inspection of hermetic seal, next plate group assembly welding operation of being allowed for access after qualified.
As shown in figure 21, successively the peripheral outer of the semicircle of corrugated sheet and straight flange outer will be welded with composing plate bundle heat exchanger components after will stacking according to a plurality of plate groups that making shown in Figure 20 obtains, plate bundle heat exchanger components after the welding forms semicircle periphery outer weld seam 182 at the semicircle periphery place of corrugated sheet, and forms straight flange outer weld seam 181 at the place, straight flange outer of corrugated sheet.
As shown in figure 21, at the inlet opening place of the first side wave line thin plate of plate bundle heat exchanger components along the hole along pasting weldering feed liquor rebound 41, then at the fluid hole place of first side wave line thin plate welding fluid rebound 51, feed liquor rebound 41 and fluid rebound 51 play transition and humidification in being connected of plate journey feed tube 42 and plate journey drain pipe 52 and plate bundle heat exchanger components.
Then at the inlet opening of the tail side wave line thin plate of plate bundle heat exchanger components and fluid hole place all along the hole along pasting weldering blind plate 60.
As shown in figure 22, outside plug welding strip of paper used for sealing 20 at plate bundle heat exchanger components constitutes welded plate bundle 80, described strip of paper used for sealing 20 soldering and sealing are at the place, straight flange outer of corrugated sheet 10, and strip of paper used for sealing 20 extends to 11 places, water conservancy diversion district of corrugated sheet 10, and described strip of paper used for sealing 20 is reserved the breach for the turnover of B medium at the upper and lower end position of plate bundle heat exchanger components.
As shown in Figure 1, with clamp mechanism 70 the fastening full welding corrugated sheet heat exchanger that namely can be made among the present invention is installed in the outside of heat exchange matrix.
Heat exchange matrix shown in Fig. 1 is after backing plate 71, clamping plate 72 are installed and finish, adapter in medium A is suit reinforcing ring 73 on plate journey feed tube 42 and the plate journey drain pipe 52, and make reinforcing ring 73 be close to the outside of clamping plate 72, outer flange is welded in the interior ring boxing of reinforcing ring 73 again after the adapter of medium A, to finish the assembling of heat exchanger.
As shown in figure 18, plate journey feed tube 42, a plurality of inlet opening are ganged up the inlet opening passage that forms, the plate journey passage in the welded plate bundle 80, a plurality of fluid hole each other and are ganged up fluid hole passage, the plate journey drain pipe 52 common plate journeys of forming for the heat exchanger of A media turnover that form each other.Cavity between shell side pipeline 33, case groove 30 and the welded plate bundle 80, the shell side passage in the welded plate bundle 80 are formed the shell side for the heat exchanger of B medium turnover jointly.
Thermal (temperature difference) stress has only and possesses the temperature difference simultaneously and constraint just can produce during two key elements, technical scheme among the present invention has adopted the frame mode of a large amount of plate sheet welding on the one hand, the line strain that will produce because expanding with heat and contract with cold is converted to the strain of permission on the other hand, and adopted the plate bundle structural design of removing constraint eliminating or to have reduced effect of constraint value, thereby avoided producing the possibility of high-risk thermal (temperature difference) stress effectively.
The qualitative analysis shows, the welded plate bundle among the present invention carries outside under the condition of 575 ℃ of pressure 4.0MPa, operating temperature and has abundant margin of safety.
Claims (10)
1. one kind is welded the corrugated sheet heat exchanger entirely, it is characterized in that:
This heat exchanger comprises corrugated sheet (10), described corrugated sheet is made of water conservancy diversion district (11) and heat transfer zone (12), described water conservancy diversion district (11) is semicircle shape, the rectangular shape of described heat transfer zone (12), water conservancy diversion district (11) is symmetrically distributed in the both sides of heat transfer zone (12), and two water conservancy diversion districts (11) are connected with each other as a whole with heat transfer zone (12); Be respectively arranged with the inlet opening (13A) and the fluid hole (13B) that run through plate body in described two water conservancy diversion districts (11); The plate body of described corrugated sheet (10) is rugged fluctuating shape or wavy, and the two the common residing plane of hole lateral edges and the plane that surrounds of the outer ledge of corrugated sheet (10) of the inlet opening (13A) of corrugated sheet (10) and fluid hole (13B) is different;
Described some corrugated sheets (10) weld successively and abut in together, and described some corrugated sheets (10) constitute welded plate bundle (80) jointly with the strip of paper used for sealing that is welded on this some corrugated sheets (10) outside; Inlet opening (13A) center of the intrafascicular corrugated sheet of welded plate (10) all is on the same plate journey feed liquor straight line, fluid hole (13B) center is on the same plate journey fluid straight line, described plate journey feed liquor straight line and plate journey fluid straight line are parallel to each other, the inlet opening (13A) that is in the outermost corrugated sheet of welded plate bundle (10) welds together with plate journey feed tube unit (40) or blind plate (60), and the fluid hole (13B) that is in the outermost corrugated sheet of welded plate bundle (10) welds together with plate journey drain pipe unit (50) or blind plate (60);
The plate face of the adjacent corrugations thin plate (10) that welded plate is intrafascicular against each other together, this abuts in and forms intrafascicular plate journey passage and the shell side passage of welded plate between together the adjacent corrugated sheet; Together the inlet opening (13A) against each other of intrafascicular two corrugated sheets of welded plate (10) is welded together to form the inlet opening weld seam mutually, describedly is in inlet opening (13A), the inlet opening weld seam on the same plate journey feed liquor straight line and the corrugated sheet that is close together surrounds the inlet opening passage that is connected with plate journey feed tube unit (40) jointly; Together the fluid hole (13B) against each other of intrafascicular two corrugated sheets of welded plate (10) is welded together to form the fluid hole weld seam mutually, describedly is in inlet opening (13B), the fluid hole weld seam on the same plate journey fluid straight line and the corrugated sheet that is close together surrounds the fluid hole passage that is connected with plate journey drain pipe unit (50) jointly;
Together the outer ledge against each other of intrafascicular two corrugated sheets of welded plate (10) welds together mutually and constitutes the outer weld seam; The parallel edge that is arranged in welded plate bundle (80) of the strip of paper used for sealing of a plurality of shell shapes (20) is parallel to the left and right sides of plate journey feed liquor rectilinear direction; The edge of described strip of paper used for sealing (20) is curved arc shape or bending perpendicular to the cross section of its length direction; Described strip of paper used for sealing (20) linked to each other successively in being between the planar both ends of the surface of plate of welded plate bundle, and strip of paper used for sealing (20) along the two ends of its width respectively with two adjacent outer weld seam welding, the outside that extends to corrugated sheet water conservancy diversion district (11) along the two ends up and down of its length direction along described outer weld seam of described strip of paper used for sealing (20);
The both sides up and down of described welded plate bundle all are covered with and are welded with case groove (30), the end edge of the side margins of described case groove (30) and strip of paper used for sealing (20) is connected with each other, be provided with cavity between described case groove (30) and the welded plate bundle, and the side away from the welded plate bundle of case groove (30) is provided with the shell side pipeline that is connected with described cavity;
Described welded plate bundle, up and down case groove (30), plate journey feed tube unit (40), the plate journey drain pipe unit (50) of both sides are connected with each other by welding and constitute the heat exchange matrix to be in the welded plate bundle; Described clamp mechanism namely is parallel to plate journey feed liquor straight line from the both sides, front and back of heat exchange matrix both sides with the clamping of heat exchange matrix therein, and clamp mechanism makes various piece in the heat exchange matrix all clamp to be pressed against together; The both sides up and down and the left and right sides that are arranged on perpendicular to plate journey feed liquor rectilinear direction of described heat exchange matrix are free end;
The plate journey passage that forms between described plate journey feed tube unit (40), inlet opening passage, the adjacent corrugations thin plate, fluid hole passage, plate journey drain pipe unit (50) constitute the plate journey passage of heat exchanger jointly;
The shell side passage that forms between gap between enclosed cavity between shell side pipeline on the described case groove (30), case groove (30) and the welded plate bundle, strip of paper used for sealing (20) and the corrugated sheet (10), the adjacent corrugations thin plate constitutes the shell side passage of heat exchanger jointly.
2. full welding corrugated sheet heat exchanger according to claim 1, it is characterized in that: described corrugated sheet (10) is one group with two, and the inlet opening (13A) on these two corrugated sheets (10) corresponds to each other to recline and welds together, and fluid hole (13B) also corresponds to each other to recline and welds together; Some groups of corrugated sheets link to each other successively and bear against together; These both sides, front and back that bear against some groups of corrugated sheets together are respectively arranged with first side wave line thin plate and tail side wave line thin plate, described first side wave line thin plate and tail side wave line thin plate all by the outer weld seam therewith some groups of corrugated sheets link to each other, and the upper edge of first side wave line thin plate and tail side wave line thin plate welds together with the case groove (30) that is arranged on welded plate bundle upside, and the lower edge of first side wave line thin plate and tail side wave line thin plate welds together with the case groove (30) that is arranged on welded plate bundle downside; The inlet opening of first side wave line thin plate and the inlet opening of tail side wave line thin plate weld together with plate journey feed tube unit (40) or blind plate (60) respectively, and the fluid hole of the inlet opening of first side wave line thin plate and tail side wave line thin plate welds together with plate journey drain pipe unit (50) or blind plate (60) respectively; Described first side wave line thin plate, some groups of corrugated sheet, tail side wave line thin plates against each other constitute the welded plate bundle jointly.
3. full welding corrugated sheet heat exchanger according to claim 1, it is characterized in that: the plate face in the water conservancy diversion district (11) of described corrugated sheet (10) is provided with water conservancy diversion ripple (14), and the plate face of described heat transfer zone (12) is provided with heat transfer ripple (15).
4. full welding corrugated sheet heat exchanger according to claim 2, it is characterized in that: described case groove (30) comprises laminal boxboard (31) and end plate (32);
Described boxboard (31) is the curved arc shape, and the two ends along the arc length direction of boxboard (31) link to each other with the end of the strip of paper used for sealing of described welded plate bundle both sides and weld together;
Described end plate (32) is set to two, two end plates (32) divides the both sides, front and back that are located at boxboard (31), two end plates (32) one side is connected together with the curved arc shape edge joint weld of boxboard (31), then welds together with the outer weld seam that is arranged on welded plate Shu Qianhou both sides on the other hand;
Described boxboard (31), end plate (32), strip of paper used for sealing (20), the welded plate bundle is connected with each other and surround a cavity; Side away from the welded plate bundle of described boxboard (31) is provided with the shell side pipeline (33) that is connected with described cavity;
Be provided with the gap between described end plate (32) and plate journey feed tube unit (40), end plate (32) and plate journey drain pipe unit (50), end plate (32) and the blind plate (60).
5. full welding corrugated sheet heat exchanger according to claim 2, it is characterized in that: described plate journey feed tube unit (40) comprises feed liquor rebound (41) and the plate journey feed tube (42) that welds together, described feed liquor rebound (41) cover cap is located at the outermost inlet opening (13A) of welded plate bundle, the plate face of feed liquor rebound (41) is provided with the opening that matches with described inlet opening (13A) aperture size, and the inlet opening weld seam that the edge of opening of described feed liquor rebound (41) and inlet opening (13A) are located welds together;
Described plate journey drain pipe unit (50) comprises fluid rebound (51) and the plate journey drain pipe (52) that welds together, described fluid rebound (51) cover cap is located at the outermost fluid hole (13B) of welded plate bundle, the plate face of fluid rebound (51) is provided with the opening that matches with described fluid hole (13B) aperture size, and the fluid hole weld seam that the edge of opening of described fluid rebound (51) and fluid hole (13B) are located welds together.
6. full welding corrugated sheet heat exchanger according to claim 4, it is characterized in that: described boxboard (31) both sides end plates (32) but between the boxboard plate body be provided with the expansion loop (34) of elastic telescopic, the residing anchor ring of described expansion loop (34) is perpendicular to plate journey feed liquor straight line.
7. full welding corrugated sheet heat exchanger according to claim 5 is characterized in that: described clamp mechanism (70) comprises backing plate (71), clamping plate (72), reinforcing ring (73) and clamps double-screw bolt (74);
Described backing plate (71) is tabular, and backing plate (71) is set to two, and two backing plates (71) abut in the both sides, front and back of welded plate bundle respectively; The thickness of slab of described backing plate (71) is all identical with the thickness of slab of feed liquor rebound (41), fluid rebound (51), and between described backing plate (71) and the feed liquor rebound (41), be provided with the gap between backing plate (71) and fluid rebound (51) and backing plate (71) and the blind plate (60);
Described flat clamping plate (72) also is set to two, the thickness of slab of clamping plate (72) is greater than the thickness of slab of backing plate (71), two clamping plates (72) are separately positioned on the outside of corresponding backing plate (71), and also be provided with the through hole that supplies plate journey feed tube (42) and plate journey drain pipe (52) to pass on the clamping plate (72), be provided with the gap between the outside tube wall of the inwall of this described through hole and described plate journey feed tube (42) and plate journey drain pipe (52);
The plate face size of described clamping plate (74) is greater than the plate face size of corrugated sheet (10), and described clamping double-screw bolt (74) passes stretching out at the plate face in corrugated sheet (10) outside and with backing plate (71), the welded plate bundle, plate journey feed tube unit (40), the plate journey drain pipe unit (50) that are between two backing plates (71) of clamping plate (72) and pushes tightly and abut in together;
The reinforcing ring of described ring flat-plate shape (73) is arranged on the outside that deviates from the welded plate bundle of clamping plate (72), and reinforcing ring (73) is set in respectively on the tube wall of plate journey feed tube (42) and plate journey drain pipe (52), the end face towards welded plate bundle one side of described reinforcing ring (73) abuts on the clamping plate (72) tightly, and the interior ring edge of the end face that deviates from welded plate bundle one side of reinforcing ring (73) and the tube wall of plate journey feed tube (42) or plate journey drain pipe (52) weld together.
8. according to each described full welding corrugated sheet heat exchanger of claim 1～7, it is characterized in that: the sheet δ 1 of described corrugated sheet (10) is 0.6～1.2mm, and the material of corrugated sheet (10) is stainless steel or titanium or nickel-base alloy;
The sheet δ 2 of described strip of paper used for sealing (20) is 2～2.5 times of corrugated sheet (10) sheet δ 1;
If the length along the corresponding string of outer arc (21) of the cross section of strip of paper used for sealing length direction of curved arc shape strip of paper used for sealing (20) is L, the high difference of the biside plate face of contoured corrugated sheet (10) is H, then described chord length L=2H;
The high h of arc bow that outer arc (21) along the cross section of the strip of paper used for sealing length direction string corresponding with it of described curved arc shape strip of paper used for sealing (20) formed is 1.8～2.2mm;
The material of described strip of paper used for sealing (20) is identical with the material of corrugated sheet (10).
9. full welding corrugated sheet heat exchanger according to claim 6, it is characterized in that: described expansion loop (34) arranges quantity more than one along plate journey feed liquor rectilinear direction, and the spacing J between two adjacent expansion loop (34) centers presses following formula and determines:
J＝4/（T
B×α
B）mm
In the following formula: T
BBe the maximum temperature of the medium by the case groove, unit is ℃;
α
BBe the linear expansion coefficient of case groove material, unit is 1/ ℃.
10. full welding corrugated sheet heat exchanger according to claim 7, it is characterized in that: the shape of the shape of described backing plate (71) and corrugated sheet (10) matches, and the two ends up and down of backing plate (71) are respectively arranged with upper end open (711) and lower ending opening (712) that the outer shape with feed liquor rebound (41) and fluid rebound (51) matches;
The plate face that deviates from the welded plate bundle of the plate face that deviates from the welded plate bundle of described backing plate (71), the plate face that deviates from the welded plate bundle of feed liquor rebound (41), fluid rebound (51), to be in the outer panel face of case groove end plate of welded plate bundle the same side in the same plane with described backing plate (71).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169418.0A CN103256838B (en) | 2013-05-09 | 2013-05-09 | All-welded corrugated sheet heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169418.0A CN103256838B (en) | 2013-05-09 | 2013-05-09 | All-welded corrugated sheet heat exchanger |
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| CN103256838B CN103256838B (en) | 2015-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444594A (en) * | 2015-12-04 | 2016-03-30 | 上海宝丰机械制造有限公司 | Plate-type heat exchanger |
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| US2865613A (en) * | 1954-02-25 | 1958-12-23 | Rosenblads Patenter Ab | Plate type heat-exchanger |
| US4301863A (en) * | 1978-11-22 | 1981-11-24 | United Technologies Corporation | Heat exchanger closure bar construction |
| CN101124450A (en) * | 2005-01-28 | 2008-02-13 | 阿尔法拉瓦尔股份有限公司 | Gasket assembly for plate heat exchanger |
| CN201438091U (en) * | 2009-08-05 | 2010-04-14 | 福建省泉州市江南冷却器厂 | Detachable plate-shell heat exchange element |
| CN201621983U (en) * | 2010-03-01 | 2010-11-03 | 中国北方车辆研究所 | Plate type heat exchanger |
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2013
- 2013-05-09 CN CN201310169418.0A patent/CN103256838B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2865613A (en) * | 1954-02-25 | 1958-12-23 | Rosenblads Patenter Ab | Plate type heat-exchanger |
| US4301863A (en) * | 1978-11-22 | 1981-11-24 | United Technologies Corporation | Heat exchanger closure bar construction |
| CN101124450A (en) * | 2005-01-28 | 2008-02-13 | 阿尔法拉瓦尔股份有限公司 | Gasket assembly for plate heat exchanger |
| CN201438091U (en) * | 2009-08-05 | 2010-04-14 | 福建省泉州市江南冷却器厂 | Detachable plate-shell heat exchange element |
| CN201621983U (en) * | 2010-03-01 | 2010-11-03 | 中国北方车辆研究所 | Plate type heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105444594A (en) * | 2015-12-04 | 2016-03-30 | 上海宝丰机械制造有限公司 | Plate-type heat exchanger |
| CN105444594B (en) * | 2015-12-04 | 2018-08-28 | 上海宝丰机械制造有限公司 | Plate type heat exchanger |
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|---|---|
| CN103256838B (en) | 2015-08-12 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |
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