CN108213695B - Diffusion welding auxiliary device of plate heat exchanger - Google Patents
Diffusion welding auxiliary device of plate heat exchanger Download PDFInfo
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- CN108213695B CN108213695B CN201810081876.1A CN201810081876A CN108213695B CN 108213695 B CN108213695 B CN 108213695B CN 201810081876 A CN201810081876 A CN 201810081876A CN 108213695 B CN108213695 B CN 108213695B
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- plate
- limiting
- heat exchanger
- diffusion welding
- strip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/002—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating specially adapted for particular articles or work
Abstract
The invention relates to the technical field of plate heat exchanger diffusion welding auxiliary equipment, in particular to a diffusion welding auxiliary device of a plate heat exchanger, which is characterized by comprising a diffusion welding base, a guide post, a limiting bracket and a pressing upper plate, wherein the diffusion welding base is provided with a strip-shaped groove, two sides of the bottom of the strip-shaped groove are provided with fixing screw holes, the limiting bracket which is symmetrically arranged and used for clamping the plate heat exchanger is arranged above the fixing screw holes on two sides of the strip-shaped groove and consists of a limiting plate and a limiting inserting strip inserted into a heat exchange gap of the plate heat exchanger, the side surface of the limiting plate is provided with the limiting inserting strip, the plate surface of the limiting plate is provided with a bolt through hole corresponding to the position of the fixing screw hole, a fixing bolt is arranged in the bolt through hole, the pressing upper plate which covers the strip-shaped groove is arranged above, the heat exchanger has the advantages of simple structure, convenience in manufacturing, high product qualification rate, improvement of reliability of the heat exchanger, time saving, labor saving and the like.
Description
Technical Field
The invention relates to the technical field of plate heat exchanger diffusion welding auxiliary equipment, in particular to a diffusion welding auxiliary device of a plate heat exchanger, which has the advantages of simple structure, convenience in manufacturing, high product qualification rate, improvement of the reliability of the heat exchanger, and time and labor saving.
Background
As is known well, the formed plate heat exchanger is a novel diffusion welding compact heat exchanger, the plate heat exchanger generally comprises a heat exchanger bottom plate, a vertical plate and an upper cover plate, the vertical plate is arranged between the heat exchanger bottom plate and the upper cover plate, one end of the vertical plate is vertically connected with the heat exchanger bottom plate, the other end of the vertical plate is vertically connected with the upper cover plate, a heat exchange gap is formed between the vertical plate and the heat exchanger bottom plate as well as between the vertical plate and the upper cover plate, the heat transmission efficiency of the heat exchanger is higher than that of the common plate heat exchanger, the step of argon arc welding is omitted, time and labor are saved, but the control of the pressure direction and the heat exchanger deformation in the pressure applying process is difficult by the common diffusion.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides the diffusion welding auxiliary device of the plate heat exchanger, which has the advantages of simple structure, convenience in manufacturing, high product qualification rate, improvement of the reliability of the heat exchanger, and time and labor saving.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a diffusion welding auxiliary device of a plate heat exchanger is characterized by comprising a diffusion welding base, a guide post, a limiting support and a pressing upper plate, wherein a strip-shaped groove is formed in the diffusion welding base, fixing screw holes are formed in two sides of the bottom of the strip-shaped groove, the limiting support which is symmetrically placed and clamped with the plate heat exchanger is arranged above the fixing screw holes in two sides of the strip-shaped groove, the limiting support comprises a limiting plate and limiting inserting strips inserted into a heat exchange gap of the plate heat exchanger, the limiting inserting strips are arranged on the side face of the limiting plate and are uniformly distributed on the side face of the limiting plate, bolt penetrating holes corresponding to the fixing screw holes are formed in the plate face of the limiting plate, fixing bolts are arranged in the bolt penetrating holes, the lower ends of the fixing bolts sequentially penetrate through the bolt penetrating holes and the fixing screw holes to fix the limiting plate in the limiting, and a pressure applying upper plate for covering the strip-shaped groove is arranged above the diffusion welding base, a positioning hole is formed in the pressure applying upper plate, a guide column is arranged in the positioning hole, and the guide column penetrates through the positioning hole of the pressure applying upper plate and is fixed in the guide hole in the diffusion welding base so as to fix the pressure applying upper plate on the diffusion welding base.
The upper pressure applying plate is provided with the bolt guide hole corresponding to the position of the fixing bolt, so that a bolt cap of the fixing bolt can conveniently penetrate into the bolt guide hole, the position of the fixing bolt is positioned, and the positions of the diffusion welding base, the limiting bracket and the upper pressure applying plate are unified.
The surface of the limiting bracket is provided with the solder resist layer, so that the limiting bracket is protected from being damaged by welding.
The guide post is in transition fit with the positioning hole of the pressing upper plate and the guide hole of the diffusion welding base, and the upper end of the guide post is 2-3 mm lower than the top surface of the pressing upper plate, so that the stability of the whole structure is guaranteed.
The upper end and the lower end of the guide post are respectively provided with the chamfer angle, so that the guide post is convenient to install.
The height of the strip-shaped groove is 0.2-0.3 mm lower than the upper surface of the upper cover plate of the plate heat exchanger after installation, so that the welding effect is ensured, and the product percent of pass is improved.
The upper surface of the limiting inserting strip in the fixed limiting support is 0.4-0.6 mm lower than the lower surface of the upper cover plate of the plate heat exchanger, and the lower surface of the limiting inserting strip is 0.2-0.4 mm higher than the upper surface of the bottom plate of the plate heat exchanger, so that the welding effect is ensured, and the product percent of pass is improved.
The top surface of the limiting plate in the limiting bracket is 0.2-0.3 mm lower than the top surface of the diffusion welding base, and the top surface of the limiting plate is 0.2-0.3 mm higher than the lower surface of the upper cover plate of the plate heat exchanger, so that the welding effect is ensured, and the product percent of pass is improved.
The auxiliary device comprises a diffusion welding base, a guide post, a limiting bracket and a pressure applying upper plate, wherein the diffusion welding base is provided with a strip-shaped groove, two sides of the bottom of the strip-shaped groove are provided with fixing screw holes, the limiting bracket which is symmetrically placed and used for clamping the plate heat exchanger is arranged above the fixing screw holes on the two sides of the strip-shaped groove, the limiting bracket comprises a limiting plate and a limiting inserting strip inserted into a heat exchange gap of the plate heat exchanger, the side surface of the limiting plate is provided with the limiting inserting strip, the limiting inserting strip is uniformly distributed and arranged on the side surface of the limiting plate, the plate surface of the limiting plate is provided with bolt through holes corresponding to the fixing screw holes, the bolt through holes are internally provided with fixing bolts, the lower ends of the fixing bolts sequentially penetrate through the bolt through holes and the fixing screw holes so as to fix the limiting plate in the limiting bracket in the, the pressure-applying upper plate is provided with a positioning hole, a guide post is arranged in the positioning hole, the guide post penetrates through the positioning hole of the pressure-applying upper plate and is fixed in a guide hole on the diffusion welding base so as to fix the pressure-applying upper plate on the diffusion welding base, the pressure-applying upper plate is provided with a bolt guide hole corresponding to the position of a fixing bolt, a bolt cap of the fixing bolt can conveniently penetrate into the bolt guide hole, the position of the fixing bolt is positioned, the positions of the diffusion welding base, a limiting bracket and the pressure-applying upper plate are unified, the surface of the limiting bracket is provided with a solder resist layer to protect the limiting bracket from being welded and damaged, the guide post is in transition fit with the positioning hole of the pressure-applying upper plate and the guide hole of the diffusion welding base, the upper end of the guide post is 2-3 mm lower than the top surface of the pressure-applying upper plate, the stability of, easy to assemble, the bar groove highly than the upper surface of the upper cover plate of plate heat exchanger after the installation 0.2~ 0.3mm lower, guarantee the welding effect, improve the product percent of pass, spacing support after fixed in the upper surface of spacing cutting be less than the lower surface 0.4mm ~0.6mm of plate heat exchanger upper cover plate, the lower surface of spacing cutting is higher than the upper surface 0.2~0.4mm of plate heat exchanger bottom plate, guarantee the welding effect, improve the product percent of pass, spacing support in the top surface of limiting plate be less than the top surface 0.2~ 0.3mm of diffusion welding base, the top surface of limiting plate is higher than the lower surface 0.2~ 0.3mm of plate heat exchanger upper cover plate, guarantee the welding effect, improve the product percent of pass, have simple structure, preparation convenience, product percent of pass height, improve heat exchanger reliability, labour saving and time saving etc. advantage.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a perspective view of a spacing bracket of the present invention.
Fig. 4 is a top view of fig. 3.
Fig. 5 is a schematic diagram showing the height relationship of the structures after the installation of the invention.
Fig. 6 is a height relationship diagram of the invention in another direction for each structure after installation.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in the attached drawing, a plate heat exchanger's diffusion welding auxiliary device, this auxiliary device of its characterized in that is by diffusion welding base 1, guide post 2, spacing support and the upper plate 3 that exerts pressure and constitutes, diffusion welding base 1 on be equipped with bar groove 4, the bottom both sides of bar groove 4 are equipped with fixed screw 5, the fixed screw 5 top of bar groove 4 both sides is equipped with the symmetry and places and press from both sides the spacing support of getting plate heat exchanger, spacing support constitute by limiting plate 6 and the spacing cutting 7 that inserts the plate heat exchanger heat transfer clearance, the side of limiting plate 6 be equipped with spacing cutting 7, the range of spacing cutting 7 equipartition is in the side of limiting plate 6, be equipped with the bolt that corresponds with fixed screw 5 position on the face of limiting plate 6 and pass hole 8, the bolt is equipped with fixing bolt 9 in passing hole 8, the lower extreme of fixing bolt 9 passes bolt 8 in proper order, Fixing screw hole 5 then fixes limiting plate 6 in the limit bracket in bar groove 4, the top of diffusion welding base 1 be equipped with the upper plate 3 that exerts pressure that covers bar groove 4, the upper plate 3 that exerts pressure on be equipped with locating hole 10, be equipped with guide post 2 in the locating hole 10, guide post 2 pass the locating hole 10 of exerting pressure upper plate 3 and fix in the guiding hole 11 on diffusion welding base 1 and then fix exerting pressure upper plate 3 on diffusion welding base 1, exerting pressure upper plate 3 on be equipped with the bolt guide hole 12 that corresponds with fixing bolt 9 position, make things convenient for fixing bolt 9's bolt cap to wear into bolt guide hole 12, the position of fixing bolt 5 is fixed to the position, realizes that diffusion welding base 1, limit bracket and exerting pressure upper plate 3 three's position is unified, limit bracket surface be equipped with solder mask layer, protect limit bracket not damaged by the welding, guide post 2 and exerting pressure between locating hole 10 of upper plate 3 and the guiding hole 11 of diffusion welding base 1 be the transition between joining in marriage The upper end of the guide post 2 is 2-3 mm lower than the top surface of the upper pressing plate 3, the stability of the whole structure is guaranteed, chamfers are arranged at the upper end and the lower end of the guide post 2 respectively, the installation is convenient, the height of the strip-shaped groove 4 is 0.2-0.3 mm lower than the upper surface of the upper cover plate 15 of the plate heat exchanger after installation, the welding effect is guaranteed, the product qualification rate is improved, the upper surface of the limiting insertion strip 7 in the fixed limiting support is 0.4-0.6 mm lower than the lower surface of the upper cover plate 15 of the plate heat exchanger, the lower surface of the limiting insertion strip 7 is 0.2-0.4 mm higher than the upper surface of the bottom plate 13 of the plate heat exchanger, the welding effect is guaranteed, the product qualification rate is improved, the top surface of the limiting plate 6 in the limiting support is 0.2-0.3 mm lower than the top surface of the diffusion welding base 1, the top surface of the limiting plate 6 is 0.2-0.3 mm higher than the, the product percent of pass is improved.
When the invention is used, firstly, a bottom plate 13 of a plate heat exchanger is placed on a strip-shaped groove 4, a plurality of vertical plates 14 are placed on the bottom plate 13 of the heat exchanger, then a limit bracket at one side is placed above the bottom plate 13 of the heat exchanger, a limit plate 6 of the limit bracket is connected on a diffusion welding base 1 through a fixing bolt 9, a limit inserting strip 7 of the limit bracket is inserted between adjacent vertical plates 14 to realize the positioning of the vertical plates 14, then an upper cover plate 15 is covered, as shown in figures 5 and 6, the height of the strip-shaped groove 4 is lower than the upper surface of the upper cover plate 15 of the installed plate heat exchanger by h1= 0.2-0.3 mm, then the limit inserting strip 7 of the limit bracket at the other side is inserted into a heat exchange gap between the vertical plates 14 and is gradually pushed to realize the positioning of the positions of the bottom plate 13, the vertical plates 14 and the upper cover plate 15 of the heat exchanger by two limit brackets, and the limit brackets, after the fixing, the upper surface of a limiting inserting strip 7 in a limiting support is lower than the lower surface h2= 0.4-0.6 mm of an upper cover plate 15 of the plate heat exchanger, the lower surface of the limiting inserting strip 7 in the limiting support is higher than the upper surface h3= 0.2-0.4 mm of a bottom plate 13 of the plate heat exchanger, after the fixing, the top surface of a limiting plate 6 in the limiting support is lower than the top surface h4= 0.2-0.3 mm of a diffusion welding base 1 and is higher than the lower surface h5= 0.2-0.3 mm of the upper cover plate 15 of the plate heat exchanger, and then a guide post is installed in a guide hole 11 of the diffusion welding base 1; finally, the positioning holes 10 of the upper pressure plate 3 are arranged along the guide posts 2 to be contacted with the upper cover plate 15 of the heat exchanger, the assembly is completed, the whole body is put into a special diffusion welding furnace for welding, the heat exchanger is integrally diffusion-welded and molded, the finished product rate and the structural reliability of the diffusion-welded plate type heat exchanger are greatly improved, time and labor are saved, the auxiliary device comprises a diffusion welding base 1, the guide posts 2, a limiting bracket and the upper pressure plate 3, the diffusion welding base 1 is provided with strip-shaped grooves 4, two sides of the bottoms of the strip-shaped grooves 4 are provided with fixing screw holes 5, the limiting bracket for symmetrically placing and clamping the plate type heat exchanger is arranged above the fixing screw holes 5 on two sides of the strip-shaped grooves 4, the limiting bracket comprises a limiting plate 6 and limiting inserting strips 7 inserted into the heat exchange gaps of the plate type heat exchanger, the side surfaces of the limiting plates 6 are provided with the limiting strips 7, and the, the plate surface of the limit plate 6 is provided with a bolt through hole 8 corresponding to the position of the fixed screw hole 5, the bolt through hole 8 is internally provided with a fixed bolt 9, the lower end of the fixed bolt 9 sequentially penetrates through the bolt through hole 8 and the fixed screw hole 5 to fix the limit plate 6 in the limit bracket in the strip-shaped groove 4, the upper part of the diffusion welding base 1 is provided with a pressure applying upper plate 3 covering the strip-shaped groove 4, the pressure applying upper plate 3 is provided with a positioning hole 10, the positioning hole 10 is internally provided with a guide column 2, the guide column 2 penetrates through the positioning hole 10 of the pressure applying upper plate 3 and is fixed in a guide hole 11 on the diffusion welding base 1 to fix the pressure applying upper plate 3 on the diffusion welding base 1, the pressure applying upper plate 3 is provided with a bolt guide hole 12 corresponding to the position of the fixed bolt 9, the bolt cap of the fixed bolt 9 can conveniently penetrate through, the positions of a diffusion welding base 1, a limiting support and a pressure-applying upper plate 3 are unified, a solder resist layer is arranged on the surface of the limiting support to protect the limiting support from being damaged by welding, a guide column 2 is in transition fit with a positioning hole 10 of the pressure-applying upper plate 3 and a guide hole 11 of the diffusion welding base 1, the upper end of the guide column 2 is lower than the top surface of the pressure-applying upper plate 3 by 2-3 mm to ensure the stability of the whole structure, chamfers are respectively arranged at the upper end and the lower end of the guide column 2 to facilitate installation, the height of a strip-shaped groove 4 is 0.2-0.3 mm lower than the upper surface of an upper cover plate 15 of a plate heat exchanger after installation to ensure the welding effect and improve the product qualification rate, the upper surface of a limiting insertion strip 7 in the fixed limiting support is 0.4-0.6 mm lower than the lower surface of the upper cover plate 15 of the plate heat exchanger, and the lower surface of the limiting insertion strip 7 is 0.2-0.4 mm higher than the upper, guarantee the welding effect, improve the product percent of pass, spacing support in the top surface of limiting plate 6 be less than the top surface 0.2~ 0.3mm of diffusion welding base 1, the top surface of limiting plate 6 is higher than the lower surface 0.2~ 0.3mm of plate heat exchanger upper cover plate 15, guarantee the welding effect, improve the product percent of pass, have simple structure, preparation convenience, product percent of pass high, improve advantages such as heat exchanger reliability, labour saving and time saving.
Claims (4)
1. A diffusion welding auxiliary device of a plate heat exchanger is characterized by comprising a diffusion welding base, a guide post, a limiting support and a pressing upper plate, wherein a strip-shaped groove is formed in the diffusion welding base, fixing screw holes are formed in two sides of the bottom of the strip-shaped groove, the limiting support which is symmetrically placed and clamped with the plate heat exchanger is arranged above the fixing screw holes in two sides of the strip-shaped groove, the limiting support comprises a limiting plate and limiting inserting strips inserted into a heat exchange gap of the plate heat exchanger, the limiting inserting strips are arranged on the side face of the limiting plate and are uniformly distributed on the side face of the limiting plate, bolt penetrating holes corresponding to the fixing screw holes are formed in the plate face of the limiting plate, fixing bolts are arranged in the bolt penetrating holes, the lower ends of the fixing bolts sequentially penetrate through the bolt penetrating holes and the fixing screw holes to fix the limiting plate in the limiting, a pressing upper plate for covering the strip-shaped groove is arranged above the diffusion welding base, a positioning hole is arranged on the pressing upper plate, a guide post is arranged in the positioning hole, the guide post penetrates through the positioning hole of the pressing upper plate and is fixed in a guide hole on the diffusion welding base so as to fix the pressing upper plate on the diffusion welding base, the guide post is in transition fit with the positioning hole of the pressing upper plate and the guide hole of the diffusion welding base, the upper end of the guide post is 2-3 mm lower than the top surface of the pressing upper plate, the height of the strip-shaped groove is 0.2-0.3 mm lower than the upper surface of an upper cover plate of the installed plate heat exchanger, the upper surface of a limiting insertion strip in the fixed limiting bracket is 0.4-0.6 mm lower than the lower surface of the upper cover plate of the plate heat exchanger, the lower surface of the limiting insertion strip is 0.2-0.4 mm higher than the upper surface of a bottom plate of the plate heat exchanger, and the top surface of a limiting plate in the limiting bracket is 0.2, the top surface of the limiting plate is 0.2-0.3 mm higher than the lower surface of the upper cover plate of the plate heat exchanger.
2. The diffusion welding auxiliary device of a plate heat exchanger as claimed in claim 1, wherein the pressing upper plate is provided with bolt guide holes corresponding to the positions of the fixing bolts.
3. The diffusion welding auxiliary device of the plate heat exchanger as claimed in claim 1, wherein the surface of the limiting bracket is provided with a solder resist layer.
4. The diffusion welding auxiliary device of a plate heat exchanger as claimed in claim 1, wherein the upper and lower ends of the guide post are respectively provided with a chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081876.1A CN108213695B (en) | 2018-01-29 | 2018-01-29 | Diffusion welding auxiliary device of plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081876.1A CN108213695B (en) | 2018-01-29 | 2018-01-29 | Diffusion welding auxiliary device of plate heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108213695A CN108213695A (en) | 2018-06-29 |
| CN108213695B true CN108213695B (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810081876.1A Active CN108213695B (en) | 2018-01-29 | 2018-01-29 | Diffusion welding auxiliary device of plate heat exchanger |
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| CN (1) | CN108213695B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015436B2 (en) * | 1981-12-04 | 1985-04-19 | 株式会社日立製作所 | Deformation control method in diffusion bonding |
| DE10232387B4 (en) * | 2002-07-17 | 2007-09-27 | Grammer Solar Gmbh | Absorber and process for its preparation |
| CN101337305A (en) * | 2008-08-13 | 2009-01-07 | 西北工业大学 | Welding method of silver base material and pure aluminium material |
| WO2015086915A1 (en) * | 2013-12-12 | 2015-06-18 | Societe Technique Pour L'energie Atomique | Method for welding an assembly including a plurality of plates, by means of diffusion and subsequent hot isostatic compression |
| CN204018908U (en) * | 2014-08-07 | 2014-12-17 | 河北贵鸿能环冷却科技有限公司 | A kind of Assembled cooling fin is welded and fixed control frock |
| CN106216788B (en) * | 2016-08-23 | 2019-07-02 | 安徽华东光电技术研究所 | A kind of welding method that aperture plate welding tooling is controlled electronically |
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2018
- 2018-01-29 CN CN201810081876.1A patent/CN108213695B/en active Active
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