CN103256838B - All-welded corrugated sheet heat exchanger - Google Patents
All-welded corrugated sheet heat exchanger Download PDFInfo
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- CN103256838B CN103256838B CN201310169418.0A CN201310169418A CN103256838B CN 103256838 B CN103256838 B CN 103256838B CN 201310169418 A CN201310169418 A CN 201310169418A CN 103256838 B CN103256838 B CN 103256838B
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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 technical field of heat exchange equipment, be specifically related to a kind of novel full welding corrugated sheet heat exchanger.
Background technology
Heat exchange element is the critical piece forming the heat transmission equipment such as various heat exchanger, air cooler, evaporimeter, preheater, its form and of a great variety, is mainly divided into tube bank and plate bundle two class greatly.
The tube bank heat exchange element formed with various steel pipe (such as light pipe, screwed pipe, gear piece pipe, bellows tube, twisted oval tube etc.) has the history of last 100 years manufacture and application, manufactures and designs with use experience all comparatively ripe.Tube bank heat exchange element is all-welded structure, and advantage to bear very high pressure and temperature, but the heat exchange efficiency of tube bank is lower and bulky.
The intrafascicular usual use corrugated sheet of plate is as heat exchange element, plate bundle heat exchange element enjoys favor because having the incomparable excellent characteristics of these tube bank heat exchange elements such as economy, efficient, compact, little temperature difference heat exchange, but the plate bundle class heat transmission equipment of the overwhelming majority is the dismountable structure of rubber strip sealing in prior art, because of restriction and the removable structure of encapsulant, 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, thus makes the application scenario limitation of plate bundle class heat transmission equipment very large.
How to make the thin plate that welding difficulty is very large, full welded plate bundle is manufactured by unconventional corrugated sheet structural design and welding approach, it is made namely to pass on the excellent specific property of corrugated sheet high-efficiency compact, there are again the safety and reliability of high temperature high voltage resistant, become and closely constantly research and develop the problem sought during the last ten years both at home and abroad.
Summary of the invention
The object of this invention is to provide a kind of full welding corrugated sheet heat exchanger, this heat exchanger overcomes the high-risk defect that thermal stress and loading stress such as to concentrate at the corrugated sheet extreme sensitivity, not only achieve the corrugated sheet welded plate binding structure of high-efficiency compact, and under HTHP and pressure, temperature variation comparatively exacting terms, still there are good safety and reliability.
For achieving the above object, present invention employs following technical scheme: a kind of full welding corrugated sheet heat exchanger, this heat exchanger comprises corrugated sheet, described corrugated sheet is made up of guiding region and heat transfer zone, described guiding region is semicircle shape, the rectangular shape in described heat transfer zone, guiding region is symmetrically distributed in the both sides of heat transfer zone, and two guiding regions and heat transfer zone are connected with each other as a whole; Described two guiding regions are respectively arranged with the inlet opening and fluid hole that run through plate body; The plate body of described corrugated sheet is rugged fluctuating shape or wavy, and the plane that the outer ledge of the inlet opening of corrugated sheet and the common residing plane of the hole lateral edges both fluid hole and corrugated sheet surrounds is different;
Described some corrugated sheets weld successively and stick together, and described some corrugated sheets and the strip of paper used for sealing be welded on outside these some corrugated sheets form welded plate bundle jointly; The inlet opening center of the intrafascicular corrugated sheet of welded plate is all on same plate journey feed liquor straight line, fluid hole center is on same plate journey fluid straight line, described plate journey feed liquor straight line and plate journey fluid straight line 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 to 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, forms the intrafascicular plate journey passage of welded plate and shell side passage between this adjacent corrugated sheet sticked together; The inlet opening together against each other of intrafascicular two corrugated sheets of welded plate is welded together to form mutually inlet opening weld seam, described in be in inlet opening on same plate journey feed liquor straight line, inlet opening weld seam and the corrugated sheet that is close together surrounds the inlet opening passage be connected with plate journey feed tube unit jointly; The fluid hole together against each other of intrafascicular two corrugated sheets of welded plate is welded together to form mutually fluid hole weld seam, described in be in inlet opening on same plate journey fluid straight line, fluid hole weld seam and the corrugated sheet that is close together surrounds the fluid hole passage be connected with plate journey drain pipe unit jointly;
The outer ledge together against each other of intrafascicular two corrugated sheets of welded plate welds together mutually and forms outer weld seam; The strip of paper used for sealing arranged in parallel of multiple shell shape is parallel to the left and right sides of plate journey feed liquor rectilinear direction on the edge of welded plate bundle; Described strip of paper used for sealing along being curved arc shape or bending perpendicular to the cross section of its length direction; Described strip of paper used for sealing is connected successively between the both ends of the surface in plate planar of welded plate bundle, and adjacent with the two respectively outer weld seam in the two ends along its width of strip of paper used for sealing welds, the two ends up and down along its length of described strip of paper used for sealing extend to the outside of corrugated sheet guiding region along described outer weld seam;
The both sides up and down of described welded plate bundle are all covered to establish and are welded with case groove, the described side margins of 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 welded plate bundle, and the side away from welded plate bundle of case groove is provided with the shell side pipeline be connected with described cavity;
Described welded plate bundle, the case groove being in the upper and lower both sides of welded plate bundle, plate journey feed tube unit, plate journey drain pipe unit to be connected with each other formation heat exchange matrix by welding; Namely described clamp system is parallel to the both sides of plate journey feed liquor straight line by heat exchange matrix clamping wherein from the both sides, front and back of heat exchange matrix, and clamp system makes the various piece in heat exchange matrix all clamp is pressed against together; Being arranged on of described heat exchange matrix is free end perpendicular to the both sides up and down of plate journey feed liquor rectilinear direction and the left and right sides;
The plate journey passage formed between described plate journey feed tube unit, inlet opening passage, adjacent corrugations thin plate, fluid hole passage, plate journey drain pipe unit form the plate journey passage of heat exchanger jointly;
The shell side passage formed between shell side pipeline on described case groove, the enclosed cavity between case groove and welded plate bundle, the gap between strip of paper used for sealing and corrugated sheet, adjacent corrugations thin plate forms 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 panels, and the inlet opening on this two panels corrugated sheet corresponds to each other to recline and welds together, and fluid hole also corresponds to each other to recline and welds together; Some groups of corrugated sheets are connected successively and bear against together; The both sides, front and back of these some groups of corrugated sheets born against together are respectively arranged with first side corrugated sheet and tail side corrugated sheet, described first side corrugated sheet and tail side corrugated sheet all by outer weld seam therewith some groups of corrugated sheets be connected, and the upper edge of first side corrugated sheet and tail side corrugated sheet and the case slot welding be arranged on the upside of welded plate bundle are connected together, lower edge and the case slot welding be arranged on the downside of welded plate bundle of first side corrugated sheet and tail side corrugated sheet are connected together; The inlet opening of first side corrugated sheet and the inlet opening of tail side corrugated sheet weld together with plate journey feed tube unit or blind plate respectively, and the inlet opening of first side corrugated sheet and the fluid hole of tail side corrugated sheet weld together with plate journey drain pipe unit or blind plate respectively; Described first side corrugated sheet, some groups of corrugated sheets against each other, tail side corrugated sheets form welded plate bundle jointly.
Preferably, the plate face of the guiding region of described corrugated sheet is provided with water conservancy diversion ripple, the plate face of described heat transfer zone is provided with heat transfer ripple.
Preferably, described case groove comprises laminal boxboard and end plate;
Described boxboard is curved arc shape, and the two ends along arc length direction of boxboard are connected 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 pieces, and two end plates divides the both sides, front and back being located at boxboard, and two end plates is connected together with the curved arc shape edge joint weld of boxboard on the one hand, then welds together with the outer weld seam being 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; The side away from welded plate bundle of described boxboard is provided with the shell side pipeline be connected with described cavity;
Described end plate and plate journey feed tube unit, end plate and plate journey drain pipe unit, between end plate and blind plate, be provided with gap.
Preferably, described plate journey feed tube unit comprises the feed liquor rebound and plate journey feed tube that weld 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 matched with described inlet opening aperture size, the edge of opening of described feed liquor rebound and the inlet opening weld seam at inlet opening place weld together;
Described plate journey drain pipe unit comprises the fluid rebound and plate journey drain pipe that weld 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 matched with described fluid hole aperture size, the edge of opening of described fluid rebound and the fluid hole weld seam at fluid hole place weld together.
As further preferred version of the present invention, the boxboard plate body of described boxboard between the end plate of both sides is provided with can the expansion loop of elastic compression, and the anchor ring residing for described expansion loop is perpendicular to plate journey feed liquor straight line.
Preferably, described clamp system comprises backing plate, clamping plate, reinforcing ring and clamping stud;
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 feed liquor rebound, backing plate and fluid rebound and be provided with gap between backing plate and blind plate;
Described flat clamping plate is also 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 clamping plate is also provided with the through hole passed for plate journey feed tube and plate journey drain pipe, be provided with gap between the inwall of through hole described in this and the outside tube wall of 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, described clamping stud through clamping plate the plate face outside corrugated sheet of stretching out and by backing plate, be in welded plate bundle two backing plates, plate journey feed tube unit, plate journey drain pipe unit extrude tightly and stick together;
The reinforcing ring of described ring flat-plate shape is arranged on the outside deviating from welded plate bundle of clamping plate, and reinforcing ring is set on the tube wall of plate journey feed tube and plate journey drain pipe respectively, the end face towards welded plate bundle side of described reinforcing ring abuts on clamping plate tightly, and the tube wall of the inner annular edge place deviating from the end face of welded plate bundle side of reinforcing ring and plate journey feed tube or plate journey drain pipe welds 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 of the string corresponding to outer arc of the cross section along strip of paper used for sealing length direction of curved arc shape strip of paper used for sealing is L, the high difference in the biside plate face of contoured corrugated sheet is H, then described chord length L=2H;
The high h of arc bow that the outer arc of the cross section along strip of paper used for sealing length direction of described curved arc shape strip of paper used for sealing and the string corresponding to it form 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 is more than one along the magnitude setting of plate journey feed liquor rectilinear direction, and the spacing J between two adjacent expansion loop centers determines by following formula:
J＝4/（T
B×α
B）mm
In above formula: T
bfor the maximum temperature by the medium of case groove, unit is DEG C;
α
bfor the linear expansion coefficient of case groove material, unit is 1/ DEG C.
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 the upper end open and lower ending opening that match with the outer shape of feed liquor rebound and fluid rebound;
The plate face deviating from welded plate bundle of the plate face deviating from welded plate bundle of described backing plate, the plate face deviating from welded plate bundle of feed liquor rebound, fluid rebound, the outer panel face being in the case groove end plate of welded plate bundle the same side with described backing plate are in the same plane.
Main theory involved in the present invention according to and compared to the prior art had beneficial effect as follows:
1), involved main theory foundation
The principal element affecting the safety and reliability of plate sheet welding plate bundle has loading stress and thermal (temperature difference) stress.Loading stress produces 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 heat-exchanging state residing for 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 characteristic of all metal materials, when there is variations in temperature Δ t, namely can produce linear strain.Two metallic article A and B are welding under constraints, the two own temperature t
aand t
bthere is the temperature difference, namely can because producing linear strain difference ε
tand on constraint direction, cause thermal (temperature difference) stress σ
t, σ
tvalue as follows:
σ
t＝E×ε
t；ε
t＝α×（t
A－t
B）
In above formula: E is the elastic modelling quantity of heat exchange element, unit is MPa;
α is linear expansion coefficient, and unit is 1/ DEG C;
T
afor the temperature value of metallic article A, unit is DEG C;
T
bfor the temperature value of metallic article B, unit is DEG C.
Temperature variable Rate and the thickness of metallic article are inversely proportional to, and when the difference in thickness of two metallic article A and B is larger, the size of the two temperature approach determined primarily of the warm variable Rate of the less metallic article of thickness.The metallic article that thickness is less and the response that thin plate becomes temperature very responsive, self temperature difference in the unit interval is much larger than the larger metallic article of thickness and slab.Thus under welding constraints, make thin plate produce moment thermal (temperature difference) stress.
For material 316, linear expansion coefficient α=19 × 10 of material
-6/ DEG C, elastic modulus E=206 × 10
3mPa, allowable stress ［ σ
permitbe respectively 137 ~ 107MPa(the values of 20 ~ 500 DEG C and select from GB-150);
Then Δ t=［ σ
permit］/(E × α)=27 ~ 35 DEG C
Namely, under rigid constraint condition, when self temperature difference of light sheet material is more than 27 ~ 35 DEG C, the stress value that line strain causes will exceed its allowable stress value.
From the above, thermal (temperature difference) stress, for the very little plate sheet welding plate Shu Eryan of thickness, is more easily cause its main influence factor that can not be ignored that lost efficacy compared with loading stress.
2) the multiple corrugated sheet, in the present invention and strip of paper used for sealing form welded plate bundle jointly, between the adjacent corrugations thin plate that welded plate is intrafascicular, passing hole is connected with each other along weld seam or outer weld seam, described outer weld seam is made up of with the semicircle periphery outer weld seam being arranged on the upper and lower both sides of corrugated sheet the straight flange outer weld seam being arranged on the corrugated sheet left and right sides, and strip of paper used for sealing is then welded on the commissure, straight flange outer between adjacent corrugations thin plate; The upper side and lower side of welded plate bundle is provided with case groove, and described case groove is by laminal boxboard together with the welding edges of strip of paper used for sealing, and case groove is also welded together by laminal end plate and welded plate bundle outermost semicircle periphery outer weld seam.
The corrugated sheet intrafascicular due to welded plate and strip of paper used for sealing are thin plate, and boxboard in the case groove welded together with welded plate bundle and end plate are also thin plate, thus the present invention efficiently reduces corrugated sheet, strip of paper used for sealing, difference in thickness between boxboard and end plate, avoid and produce welding constraint between the metallic article that two difference in thickness are larger, the technical scheme thus in the present invention efficiently reduces thermal (temperature difference) stress and even avoids the generation of thermal (temperature difference) stress.
3), in the present invention the outermost inlet opening of welded plate bundle together with blind plate or plate journey feed tube element solder, the outermost fluid hole of welded plate bundle is together with blind plate or plate journey drain pipe element solder, and the case groove of described welded plate bundle, blind plate, plate journey feed tube unit, plate journey drain pipe unit and upper and lower both sides forms heat exchange matrix jointly.
Described welded plate bundle passing hole welds together along weld seam and blind plate, same, the inlet opening of welded plate bundle is welded together along the feed liquor rebound in weld seam and plate journey feed tube unit by the hole at inlet opening place, and the fluid hole of welded plate bundle is then welded together along the fluid rebound in weld seam and plate journey drain pipe unit by the hole at fluid hole place.Fluid rebound in feed liquor rebound, end plate and plate journey drain pipe unit in the end plate of heat exchange matrix raising middle flask groove and plate journey feed tube unit, between end plate and blind plate, be provided with gap.
Heat exchange matrix is folded in clamp system, and described clamp system comprises backing plate, clamping plate, reinforcing ring and clamping stud.Between described backing plate and feed liquor rebound, backing plate and fluid rebound and be provided with gap between backing plate and blind plate.In addition, described clamping plate is also provided with the through hole passed for the plate journey feed tube in plate journey feed tube unit and the plate journey drain pipe in plate journey drain pipe unit, between the inwall of through hole described in this and the outside tube wall of described plate journey feed tube and plate journey drain pipe, is provided with gap.
Due to the existence in above-mentioned various gap, thus make being arranged on of described heat exchange matrix be free end perpendicular to the both sides up and down of plate journey feed liquor rectilinear direction and the left and right sides, also namely when being in heat transfer process, welded plate bundle in heat exchange matrix can move along the direction in the clamping plate plate face be parallel in clamp system, thus the scheme of rigid constraint is formed relative to clamp system heat exchanging matrix in conventional art, technical scheme in the present invention achieves flexible constraint and goes constraint theory to design, thus efficiently reduce thermal (temperature difference) stress further and even avoid the generation of thermal (temperature difference) stress.
4), in the present invention, the structure of corrugated sheet is the guiding region arranging two semicircle shapes in the both sides of rectangular-shaped heat transfer zone, the en plaque geometric shape of to be two ends semicircular in shape and figure the be rectangle of the corrugated sheet namely in the present invention, inlet opening and fluid hole are opened on the plate face of semicircle guiding region, two ends of corrugated sheet respectively.In the present invention, this structure of corrugated sheet is compared with the geometric element continuous uniform of conventional rectangular template, and stress is uniform more desirable and stress concentration is minimum.
5), in the present invention strip of paper used for sealing along being curved arc shape or bending perpendicular to the cross section of its length direction, also be the strip of paper used for sealing employing bow section in the present invention, thus make welded plate bundle change several sections of small elastic deformations into because of the swollen increment of x wire that the temperature difference produces, reduce the impact of thermal stress on outer weld seam.This technical scheme in the present invention not only eliminates the swollen increment impact of x wire of welded plate bundle, also makes Welding Structure be easy to realize simultaneously.
6) with can the expansion loop of elastic telescopic on the case groove, in the present invention, the setting of expansion loop makes the strain of the Axial Thermal of case groove be in the controlled scope of segmentation, thus reduce the impact that case groove and strip of paper used for sealing are welded to connect rear thermal strain, also namely weaken the swollen increment of axial line that case groove Yin Wendu causes to the impact of welded connection part, improve the safety and reliability of heat exchanger.
7), in sum, the present invention is different from traditional rectangular slab welded plate bundle, evenly continuous print geometric element and the flexible Welding Structure of corrugated sheet in the present invention, the line strain produced because expanding with heat and contract with cold is converted to elastic deformation or the controlled range distortion of permission, and have employed remove constraint plate bundle structural design with eliminate or reduce effect of constraint value, heat exchange matrix is presented in rigid grasp mechanism independently flexible, thus efficiently avoid the possibility producing high-risk thermal (temperature difference) stress, overcome the high-risk defect that thermal stress and loading stress such as to concentrate at the corrugated sheet extreme sensitivity, not only achieve the corrugated sheet welded plate bundle of high-efficiency compact, and under HTHP and pressure, temperature variation comparatively exacting terms, this heat exchanger still has good safety and reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of corrugated sheet.
The A-A sectional view of Fig. 2 of Fig. 3.
Fig. 4 is the structural representation of heat exchange matrix.
Fig. 5 is the structural representation that between two adjacent corrugations thin plates, passing hole is linked together along weld seam.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 is the structural representation that welded plate bundle is connected with case groove, plate journey feed tube unit and plate journey drain pipe unit.
Fig. 8 is I enlarged diagram of Fig. 7.
Fig. 9 is II enlarged diagram of Fig. 7.
Figure 10 is III enlarged diagram of Fig. 7.
Figure 11 is the structural representation of strip of paper used for sealing.
Figure 12 is the F-F sectional view of Figure 11.
Figure 13 is the structural representation of case groove.
Figure 14 is the K direction view of Figure 13.
Figure 15 is the draw bail schematic diagram of welded plate bundle and clamp system.
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 ~ 22 are manufacturing process schematic diagrames of the present invention.
The implication marked in figure is as follows:
12-heat transfer zone, 10-corrugated sheet, 11-guiding region 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 system, 71-backing plate, 711-upper end open
712-lower ending opening, 72-clamping plate, 73-reinforcing ring, 74-clamping stud
80-welded plate bundle
Detailed description of the invention
1. first by reference to the accompanying drawings each part in this heat exchanger is illustrated one by one below.
1.1 corrugated sheet
As shown in Figure 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 guiding region 11, and stage casing is the heat transfer zone 12 of rectangular rectangle.The inlet opening 13A passed in and out for heat transferring medium A in Fig. 1 and fluid hole 13B is opened on the plate face leaning on inlet side head of semicircle guiding region 11 respectively.As shown in Figure 2, the plate face of the guiding region 11 of two halves circle is designed with the water conservancy diversion ripple 14 of different angle, the plate face of rectangular section heat transfer zone 12 is designed the augmentation of heat transfer ripple 15 of various different purposes.
As shown in Figure 3, the hole of the inlet opening 13A of corrugated sheet 10 and the hole lateral edges of fluid hole 13B and corrugated sheet 10 is along being positioned at different different basal planes from the outer ledge of corrugated sheet 10 and the outer of corrugated sheet 10.
As shown in Fig. 5,6,8, when two corrugated sheets 10 turn over opposition button, the hole of two corrugated sheets 10 forms hole along opposite joint along being relatively close to alignment, along implementing welding, two corrugated sheets 10 are connected into a pair plate group by eyelet welding to hole, between the plate group be namely connected by eyelet welding, passing hole links together along weld seam 19.The ripple of every a pair plate group crosses each other to form close and support contact that is equal portion, forms heat exchanging medium passage again between support contact.It can thus be appreciated that the frame mode of plate group can bearing load pressure, the again mazy heat exchanging medium passage of self-assembling formation in the present invention.
In the present invention, the round square continuous print geometric element of corrugated sheet 10 and the ripple struction in equal portion, make corrugated sheet 10 have the elastic deformation characteristic of uniformly continous, 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 is selected the thin plate of the material such as stainless steel, nickel-based alloys to suppress and is formed, and board dimension scope is 600 × 2000mm ~ 1200 × 4000mm, can the maximum plate bundle area of assembly welding be 3200M
2.
1.2 strip of paper used for sealing
As 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 high difference that the length of the string corresponding to outer arc 21 of the cross section along strip of paper used for sealing length direction of curved arc shape strip of paper used for sealing 20 is the biside plate face of the corrugated sheet 10 of L, Fig. 3 mesorelief shape is H, then described chord length L=2H; The high h of arc bow that outer arc 21 and the string corresponding to it of the cross section along strip of paper used for sealing length direction of described curved arc shape strip of paper used for sealing 20 form is 1.8 ~ 2.2mm.
The above-mentioned shape of strip of paper used for sealing 20 and structure make the linear thermal strain produced in welded plate bundle 80 be changed into several sections can micro-curved elastic deformation, thus substantially reduces the impact of thermal stress on outer weld seam 18.
Strip of paper used for sealing 20 obtains by grinding pulling method.
1.3 casees grooves
As 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, and with can the expansion loop 34 of elastic compression on boxboard 31, the setting of expansion loop 34 makes the Axial Thermal of case groove 30 strain to be in the controlled scope of segmentation, substantially reduces the impact that case groove 30 and strip of paper used for sealing 20 are welded to connect rear thermal strain.Spacing J between expansion loop 34 determines by following formula:
J＝4/（T
B×α
B）mm
In above formula: T
bfor the maximum temperature by the medium of case groove, unit is DEG C;
α
bfor the linear expansion coefficient of case groove material, unit is 1/ DEG C.
The axial length of case groove 30 is relevant with the area of the welded plate bundle 80 of design and assembly, and axial length is less than J value needed for the case groove 30, and case groove 80 can not arrange expansion loop 34.
1.4 welded plate bundles
As shown in Fig. 7,10, welded plate bundle 80 is formed primarily of corrugated sheet 10 and strip of paper used for sealing 20.
The main body of welded plate bundle 80 is turned over by N group two panels and is opposed that the corrugated sheet 10 of button is formed along welding through hole, and concrete, the plate group be formed by connecting by eyelet welding stacks successively, and welding outer is formed by connecting, as shown in Figure 19 ~ 21.
As shown in Figure 10, after the outer periphery welded closure of two corrugated sheets 10, be communicated with the N number of cavity formed with welding hole and both formed plate journey passage in welded plate bundle 80, pass in and out for medium A.Any two groups turn over oppose button corrugated sheet 10 between all soldering and sealing have strip of paper used for sealing 20, the two ends up and down of strip of paper used for sealing 20 extend to guiding region 11 place of corrugated sheet 10, form the shell side passage in welded plate bundle 80 between strip of paper used for sealing and corrugated sheet and between two corrugated sheet groups.
1.5 heat exchange matrix
As shown in Figure 4, heat exchange matrix is made up of jointly welded plate bundle 80, the case groove 30 of upper and lower both sides, plate journey feed tube unit 40, plate journey drain pipe unit 50, blind plate 60.
At the place of 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 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 place, welded plate bundle 80 outermost semicircle periphery outer by end plate weld joint 321, thus the shell side passage in shell side pipeline 33, the case groove cavity formed between case groove 30 and welded plate bundle 80, welded plate bundle 80 communicates with each other and forms so-called shell side passage, for medium B turnover, as shown in figure 18.
As shown in Figure 4, the inlet opening being in the first side corrugated sheet of 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 being in the tail side corrugated sheet of the rear end of welded plate bundle 80 has blind plate 60.Plate journey passage in plate journey feed tube 42, inlet opening passage, 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 medium A turnover, as shown in figure 18.
As shown in Fig. 8,10, the heat-transfer surface ripple also namely turned on the corrugated sheet plate face of opposing button of welded plate bundle 80 becomes positive and negative staggered, thus forming intensive support contact and fluid passage, support contact both ensure that rigidity and the load performance of welded plate bundle 80, played again the flow-disturbing effect to medium.A and medium B become the membranaceous fluidised form of adverse current in opposite directions in respective runner along corrugated plating face, violent disturbance under staggered ripple and contact fluid flow state more enhances the turbulence effect of fluid, thus can obtain, than the coefficient of heat transfer of tube bank heat transfer element column fluidised form high several times, substantially increasing heat exchange efficiency.
1.6 clamp system
As shown in Fig. 1,15, described clamp system 70 is formed primarily of backing plate 71, clamping plate 72, reinforcing ring 73 and clamping stud 74.
The thickness of backing plate 71 is all consistent with the thickness of feed liquor rebound 41 and fluid rebound 51, the corrugated plating face of the head and the tail corrugated sheet of welded plate bundle 80 rear and front end is close to by backing plate 71, make the clamping force of clamping plate 72 by backing plate 71 apply in head and the tail corrugated sheet corrugated surface and and then be passed to welded plate bundle 80, finally reach the object of plate bundle pressure-bearing.
Described welded plate bundle 80 and there is not any being welded to connect between backing plate 71 and clamping plate 72, when expanded by heating, the direction that welded plate bundle 80 can limit along backing plate 71 plate face 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, now all form card-like structure between reinforcing ring 73 and feed liquor rebound 41 and between reinforcing ring 73 and fluid rebound 51, this card-like structure makes the bending moment force produced when installing plate journey feed tube 42 and plate journey drain pipe 52 only act on clamping plate 72, thus the adverse effect reducing and even when avoiding installation, welded plate bundle 80 is produced.
As shown in figure 15, different by thermal expansion length due to welded plate bundle 80 and the parts in clamp system, therefore the present invention is between the upper end open 711 and feed liquor rebound 41 of backing plate 71 and be provided with gap delta 3 between lower ending opening 712 and fluid rebound 51; Through hole on clamping plate 72 and the through hole between plate journey feed tube 42 and on clamping plate 72 and all leave gap delta 4 between plate journey drain pipe 52, gap delta 3 and the setting of gap delta 4 avoid because interfering and the constraint that formed by different generation of thermal expansion length between welded plate bundle 80 and clamping plate 72, and prevent and to cause welded plate bundle 80 and feed liquor rebound 41 and the welding seam failure between welded plate bundle 80 and fluid transition version 51 because of the stress of aforementioned constraint generation.Minimum value formula between gap delta 3 and gap delta 4 is as follows:
δ
L＝0.375α
p×（t
p－t
0）×L
0
In above formula: α
pfor the linear expansion coefficient of welded plate beam material, unit is 1/ DEG C.
T
pfor the maximum operation (service) temperature of welded plate bundle, unit is DEG C;
T
0for environment temperature, unit is DEG C;
L
0for the adapter centre-to-centre spacing under environment temperature, unit is mm.
2. below in conjunction with Fig. 1,18 ~ 22, the assembling process of this heat exchanger is elaborated
As shown in figure 19, through die pressing machine compacting and punch shears punching, monolithic corrugated sheet 10 is prepared.
Monolithic corrugated sheet 10 adopts circular and that rectangle is combined geometry design, and the ripple of different purposes suppressed by design mould in plate face.Welding position is edge, hole and the outer of corrugated sheet 10, and the edge, hole of corrugated sheet 10 and outer are arranged on different basal planes in opposite directions, and welding hole edge and outer meet the neat argonaut welding of rule and connect requirement to make it treat by mould punching.
Concrete, the dominating process route preparing monolithic corrugated sheet 10 is I blanking; → II compacting figure; → III compacting two ends; → IV crop; → V cutting edge; → VI punching; → VII repaiies and cuts trimming; → VIII inspection; → Ⅸ cleaning warehouse-in is to be welded.
As shown in figure 20, the two panels corrugated sheet of compacting is turned over opposition be buckled together, then implement eyelet welding in the hole that two panels corrugated sheet is docking together each other along place, both the two panels corrugated sheet after welding passes through, hole is connected to each other to one group along the hole at place along weld seam 19.
Strictly should check by technical requirement after welding, check that step is visual inspection; Painted; Inspection of hermetic seal, next plate group assembly welding operation of being allowed for access after qualified.
As shown in figure 21, to weld with composing plate bundle heat exchanger components to the semicircle periphery outer of corrugated sheet and straight flange outer successively according to making shown in Figure 20 after the multiple plate groups obtained stack, plate bundle heat exchanger components after 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 straight flange outer place of corrugated sheet.
As shown in figure 21, at the inlet opening place of the first side corrugated sheet of plate bundle heat exchanger components along hole along pasting weldering feed liquor rebound 41, then at the fluid hole place of first side corrugated sheet welding fluid rebound 51, feed liquor rebound 41 and fluid rebound 51 play transition and humidification in plate journey feed tube 42 and plate journey drain pipe 52 with the connection of plate bundle heat exchanger components.
Then at the inlet opening of the tail side corrugated sheet of plate bundle heat exchanger components and fluid hole place all along hole along pasting weldering blind plate 60.
As shown in figure 22, welded plate bundle 80 is formed at the outside plug welding strip of paper used for sealing 20 of plate bundle heat exchanger components, the soldering and sealing of described strip of paper used for sealing 20 is at the straight flange outer place of corrugated sheet 10, and strip of paper used for sealing 20 extends to guiding region 11 place of corrugated sheet 10, described strip of paper used for sealing 20 reserves the breach for medium B turnover at the upper and lower end position of plate bundle heat exchanger components.
Finally weld the end plate 32 of case groove 30, boxboard 31, plate journey feed tube 42 and plate journey drain pipe 52 at the both ends of welded plate bundle 80 successively, thus make complete heat exchange matrix.
As shown in Figure 1, at the outside clamp system 70 of heat exchange matrix, the fastening full welding corrugated sheet heat exchanger that namely can be made in the present invention is installed.
Heat exchange matrix shown in Fig. 1 is after backing plate 71, clamping plate 72 have been installed, the adapter of medium A and plate journey feed tube 42 and plate journey drain pipe 52 are set with reinforcing ring 73, and make reinforcing ring 73 be close to the outside of clamping plate 72, the inner ring boxing of reinforcing ring 73 is welded outer flange again after the adapter of medium A, to complete the assembling of heat exchanger.
As shown in figure 18, plate journey feed tube 42, multiple inlet opening are ganged up each other inlet opening passage, the plate journey passage in welded plate bundle 80, multiple fluid hole gang up each other fluid hole passage, plate journey drain pipe 52 jointly composition for the plate journey of the heat exchanger of medium A turnover.Shell side pipeline 33, the cavity between case groove 30 and welded plate bundle 80, the shell side passage in welded plate bundle 80 form the shell side of the heat exchanger passed in and out for medium B jointly.
Thermal (temperature difference) stress only have possess simultaneously the temperature difference and constraint two key elements time just can produce, technical scheme in the present invention have employed the frame mode of a large amount of plate sheet welding on the one hand, on the other hand the line strain produced because expanding with heat and contract with cold is converted to the elastic deformation of permission, and have employed remove constraint plate bundle structural design with eliminate or reduce effect of constraint value, thus efficiently avoid the possibility producing high-risk thermal (temperature difference) stress.
The qualitative analysis shows, the welded plate bundle in the present invention has abundant margin of safety under carrying the condition of pressure 4.0MPa, operating temperature 575 DEG C outside.
Claims (10)
1. a full welding corrugated sheet heat exchanger, is characterized in that:
This heat exchanger comprises corrugated sheet (10), described corrugated sheet is made up of guiding region (11) and heat transfer zone (12), described guiding region (11) is in semicircle shape, described heat transfer zone (12) rectangular shape, guiding region (11) is symmetrically distributed in the both sides of heat transfer zone (12), and two guiding regions (11) are connected with each other as a whole with heat transfer zone (12); Described two guiding regions (11) are respectively arranged with the inlet opening (13A) and fluid hole (13B) that run through plate body; The plate body of described corrugated sheet (10) is rugged fluctuating shape, and the inlet opening (13A) of corrugated sheet (10) and fluid hole (13B) the two the common residing plane of hole lateral edges and the plane that surrounds of the outer ledge of corrugated sheet (10) different;
Some described corrugated sheets (10) are welded successively and are sticked together, and described some corrugated sheets (10) form welded plate bundle (80) jointly with the strip of paper used for sealing being welded on this some corrugated sheets (10) outside, inlet opening (13A) center of the intrafascicular corrugated sheet of welded plate (10) is all on same plate journey feed liquor straight line, fluid hole (13B) center is on same plate journey fluid straight line, described plate journey feed liquor straight line and plate journey fluid straight line parallel to each other, the inlet opening (13A) being in the outermost corrugated sheet of welded plate bundle (10) welds together with plate journey feed tube unit (40) or blind plate (60), the fluid hole (13B) being 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, forms the intrafascicular plate journey passage of welded plate and shell side passage between this adjacent corrugated sheet sticked together; The inlet opening (13A) together against each other of intrafascicular two corrugated sheets (10) of welded plate is welded together to form mutually inlet opening weld seam, described in be in inlet opening (13A) on same plate journey feed liquor straight line, inlet opening weld seam and the corrugated sheet that is close together surrounds the inlet opening passage be connected with plate journey feed tube unit (40) jointly; The fluid hole (13B) together against each other of intrafascicular two corrugated sheets (10) of welded plate is welded together to form mutually fluid hole weld seam, described in be in fluid hole (13B) on same plate journey fluid straight line, fluid hole weld seam and the corrugated sheet that is close together surrounds the fluid hole passage be connected with plate journey drain pipe unit (50) jointly;
The outer ledge together against each other of intrafascicular two corrugated sheets (10) of welded plate welds together mutually and forms outer weld seam; Strip of paper used for sealing (20) arranged in parallel of multiple shell shape is parallel to the left and right sides of plate journey feed liquor rectilinear direction on the edge of welded plate bundle (80); Described strip of paper used for sealing (20) along being curved arc shape perpendicular to the cross section of its length direction; Described strip of paper used for sealing (20) is connected successively between the both ends of the surface in plate planar of welded plate bundle, and adjacent with the two respectively outer weld seam in the two ends along its width of strip of paper used for sealing (20) welds, the two ends up and down along its length of described strip of paper used for sealing (20) extend to the outside of corrugated sheet guiding region (11) along described outer weld seam;
The both sides up and down of described welded plate bundle are all covered to establish and are welded with case groove (30), the side margins of described case groove (30) and the end edge of strip of paper used for sealing (20) are connected with each other, be provided with cavity between described case groove (30) and welded plate bundle, and the side away from welded plate bundle of case groove (30) is provided with the shell side pipeline be connected with described cavity;
Described welded plate bundle, the case groove (30) being in the upper and lower both sides of welded plate bundle, plate journey feed tube unit (40), plate journey drain pipe unit (50) to be connected with each other formation heat exchange matrix by welding; Clamp system from the both sides, front and back of heat exchange matrix namely perpendicular to plate journey feed liquor straight line both sides by heat exchange matrix clamping wherein, and clamp system makes the various piece in heat exchange matrix all clamp is pressed against together; Being arranged on of described heat exchange matrix is free end perpendicular to the both sides up and down of plate journey feed liquor rectilinear direction and the left and right sides;
The plate journey passage formed between described plate journey feed tube unit (40), inlet opening passage, adjacent corrugations thin plate, fluid hole passage, plate journey drain pipe unit (50) form the plate journey passage of heat exchanger jointly;
The shell side passage formed between shell side pipeline on described case groove (30), the enclosed cavity between case groove (30) and welded plate bundle, gap between strip of paper used for sealing (20) and corrugated sheet (10), adjacent corrugations thin plate forms 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 panels, and the inlet opening (13A) on this two panels corrugated sheet (10) corresponds to each other to recline and welds together, fluid hole (13B) also corresponds to each other to recline and welds together; Some groups of corrugated sheets are connected successively and bear against together; The both sides, front and back of these some groups of corrugated sheets born against together are respectively arranged with first side corrugated sheet and tail side corrugated sheet, described first side corrugated sheet and tail side corrugated sheet all by outer weld seam therewith some groups of corrugated sheets be connected, and the upper edge of first side corrugated sheet and tail side corrugated sheet and the case groove (30) be arranged on the upside of welded plate bundle weld together, lower edge and the case groove (30) be arranged on the downside of welded plate bundle of first side corrugated sheet and tail side corrugated sheet weld together; The inlet opening of first side corrugated sheet and the inlet opening of tail side corrugated sheet weld together with plate journey feed tube unit (40) or blind plate (60) respectively, and the fluid hole of first side corrugated sheet and the fluid hole of tail side corrugated sheet weld together with plate journey drain pipe unit (50) or blind plate (60) respectively; Described first side corrugated sheet, some groups of corrugated sheets against each other, tail side corrugated sheets form welded plate bundle jointly.
3. full welding corrugated sheet heat exchanger according to claim 1, it is characterized in that: the plate face of the guiding region (11) of described corrugated sheet (10) is provided with water conservancy diversion ripple (14), 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, is characterized in that: described case groove (30) comprises laminal boxboard (31) and end plate (32);
Described boxboard (31) is in curved arc shape, and the two ends along arc length direction of boxboard (31) are connected 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 pieces, two end plates (32) point is located at the both sides, front and back of boxboard (31), two end plates (32) is connected together with the curved arc shape edge joint weld of boxboard (31) on the one hand, then welds together with the outer weld seam being 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), welded plate bundle are connected with each other and surround a cavity; The side away from welded plate bundle of described boxboard (31) is provided with the shell side pipeline (33) be connected with described cavity;
Described end plate (32) and plate journey feed tube unit (40), end plate (32) and plate journey drain pipe unit (50), between end plate (32) and blind plate (60), be provided with gap.
5. full welding corrugated sheet heat exchanger according to claim 2, it is characterized in that: described plate journey feed tube unit (40) comprises the feed liquor rebound (41) and plate journey feed tube (42) that weld together, described feed liquor rebound (41) cover cap is at outermost inlet opening (13A) place of welded plate bundle, the plate face of feed liquor rebound (41) is provided with the opening matched with described inlet opening (13A) aperture size, the edge of opening of described feed liquor rebound (41) and the inlet opening weld seam at inlet opening (13A) place weld together,
Described plate journey drain pipe unit (50) comprises the fluid rebound (51) and plate journey drain pipe (52) that weld together, described fluid rebound (51) cover cap is at outermost fluid hole (13B) place of welded plate bundle, the plate face of fluid rebound (51) is provided with the opening matched with described fluid hole (13B) aperture size, the edge of opening of described fluid rebound (51) and the fluid hole weld seam at fluid hole (13B) place weld together.
6. full welding corrugated sheet heat exchanger according to claim 4, it is characterized in that: the boxboard plate body of described boxboard (31) between both sides end plate (32) is provided with can the expansion loop (34) of elastic telescopic, and the anchor ring residing for 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 system (70) comprises backing plate (71), clamping plate (72), reinforcing ring (73) and clamping stud (74);
Described backing plate (71) is in 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 feed liquor rebound (41), backing plate (71) and fluid rebound (51) and be provided with gap between backing plate (71) and blind plate (60);
Flat described clamping plate (72) is also 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 clamping plate (72) is also provided with for plate journey feed tube (42) and the through hole that passes of plate journey drain pipe (52), the inwall of through hole described in this and be provided with gap between described plate journey feed tube (42) and the outside tube wall of 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), described clamping stud (74) through clamping plate (72) the plate face in corrugated sheet (10) outside of stretching out and by backing plate (71), be in welded plate bundle two backing plates (71), plate journey feed tube unit (40), plate journey drain pipe unit (50) extrude tightly and stick together;
The described reinforcing ring (73) of ring flat-plate shape is arranged on the outside deviating from welded plate bundle of clamping plate (72), and reinforcing ring (73) is set on the tube wall of plate journey feed tube (42) and plate journey drain pipe (52) respectively, the end face towards welded plate bundle side of described reinforcing ring (73) abuts on clamping plate (72) tightly, and the inner annular edge place deviating from the end face of welded plate bundle side of reinforcing ring (73) and the tube wall of plate journey feed tube (42) or plate journey drain pipe (52) weld together.
8. the full welding corrugated sheet heat exchanger according to any one of claim 1 ~ 7, it is characterized in that: the sheet δ 1 of described corrugated sheet (10) is 0.6 ~ 1.2mm, 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 of the string corresponding to outer arc (21) of the cross section along strip of paper used for sealing length direction of curved arc shape strip of paper used for sealing (20) is L, the high difference in 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) and the string corresponding to it of the cross section along strip of paper used for sealing length direction of described curved arc shape strip of paper used for sealing (20) form 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) is more than one along the magnitude setting of plate journey feed liquor rectilinear direction, and the spacing J between two adjacent expansion loop (34) centers determines by following formula:
J＝4/(T
B×α
B)mm
In above formula: T
bfor the maximum temperature by the medium of case groove, unit is DEG C;
α
bfor the linear expansion coefficient of case groove material, unit is 1/ DEG C.
10. full welding corrugated sheet heat exchanger according to claim 7, is characterized in that:
The shape of described backing plate (71) and the shape of corrugated sheet (10) match, and the two ends up and down of backing plate (71) are respectively arranged with the upper end open (711) and lower ending opening (712) that match with the outer shape of feed liquor rebound (41) and fluid rebound (51);
The plate face deviating from welded plate bundle of the plate face deviating from welded plate bundle of described backing plate (71), the plate face deviating from welded plate bundle of feed liquor rebound (41), fluid rebound (51), the outer panel face being in the case groove end plate of welded plate bundle the same side with described backing plate (71) are in the same plane.
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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 true CN103256838B (en) | 2015-08-12 |
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| CN105444594B (en) * | 2015-12-04 | 2018-08-28 | 上海宝丰机械制造有限公司 | Plate type heat exchanger |
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 |
-
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 |
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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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