CN104759823B - A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment - Google Patents
A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment Download PDFInfo
- Publication number
- CN104759823B CN104759823B CN201510199721.4A CN201510199721A CN104759823B CN 104759823 B CN104759823 B CN 104759823B CN 201510199721 A CN201510199721 A CN 201510199721A CN 104759823 B CN104759823 B CN 104759823B
- Authority
- CN
- China
- Prior art keywords
- fin
- centering chuck
- jaw self
- steel pipe
- fin fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment, belong to boiler manfacturing technical field, what solve current steel pipe and fin welds Problems existing, the steel pipe of boiler H type economizer and a welding method for fin, it comprises welds carrying out friction with steel pipe while of multi-disc fin; The steel pipe of boiler H type economizer and a welding equipment for fin, it comprises fin fixed mould, hydraulic telescopic device, motor driven systems and bracing or strutting arrangement; Fin fixed die has two, two fin fixed moulds are symmetrical arranged, the groove of multiple plant fin is provided with in the inner surface correspondence of two fin fixed moulds, hydraulic telescopic device is respectively arranged with in the outside of two fin fixed moulds, motor driven systems is had in the arranged outside of one end of two fin fixed moulds, have bracing or strutting arrangement in the arranged outside of the other end of two fin fixed moulds, the present invention is used for the welding of H type economizer.
Description
Technical field
The invention belongs to boiler manfacturing technical field, be specifically related to a kind of steel pipe of boiler H type economizer and the welding method of fin and equipment.
Background technology
In current boiler manfacturing industry, the H type economizer of steel pipe external welding H type fin is more and more commonly used owing to significantly can improve heat exchange efficiency; Current steel pipe adopts traditional circumferentially multi-point welding technology with welding of fin, there is following shortcoming:
One, limit by conventional bonding technique, fin can only piecemeally weld, and speed of welding is slow, and production efficiency is very low, causes manufacturing cost to increase.
Two, affect by conventional bonding technique, the distance between two panels fin is greater than 20mm, limits the quantity of welding fin on steel pipe, reduces wing ratio, reduces heat exchange area.
Three, only having good heat-conducting effect at solder joint place, easily there is virtual connection in the part beyond solder joint, causes thermal resistance to increase, and reduces overall heat exchange efficiency.
Four, the fusion angle of fin and steel pipe is little, only has about 140 °, thus causes the contact area between steel pipe and fin to reduce, and reduces heat exchange efficiency further.
Summary of the invention
The object of the invention is to weld in order to what solve current steel pipe and fin the problems referred to above existed, provide a kind of steel pipe of boiler H type economizer and the welding method of fin and equipment, its technical scheme is as follows:
The steel pipe of boiler H type economizer and a welding method for fin, it comprises welds carrying out friction with steel pipe while of multi-disc fin;
The first step, is symmetricly set on steel pipe both sides by multi-disc fin, and the indentations bottom midpoint of multi-disc fin and the distance of steel pipe are 1 millimeter; A fin fixed mould is set respectively in steel pipe both sides, multiple fin is arranged on fin fixed mould;
Second step, rotates steel pipe with the speed of 3000-5000r/min; One end of steel pipe is connected with motor driven systems, and the other end of steel pipe is arranged on bracing or strutting arrangement, and steel pipe and bracing or strutting arrangement are rotationally connected, and drive steel pipe rotary by motor driven systems;
3rd step, advances 1.5-2 millimeter to the steel pipe rotated by multi-disc fin within the time of 2-5 second simultaneously; In the outside of each fin fixed mould, hydraulic telescopic device is set respectively, controls fin by hydraulic telescopic device and advance to steel pipe, together with the contact surface of steel pipe and fin is melted in because of frictional heat;
4th step, carry out urgency to the steel pipe rotated and stop braking, steel pipe and fin stop that friction generates heat, are welding as one after cooling.
The steel pipe of boiler H type economizer and a welding equipment for fin, it comprises fin fixed mould, hydraulic telescopic device, motor driven systems and bracing or strutting arrangement, fin fixed die has two, two fin fixed moulds are oppositely arranged, two fin fixed moulds are rectangular shape, the groove of multiple plant fin is provided with in the inner surface correspondence of two fin fixed moulds, the length of the length of groove and width and fin and thickness coincide, the depth capacity of groove is the notch depth that the width of fin deducts on fin, deduct 10 millimeters again, after making fin insert groove, the distance of the inner surface of the indentations bottom on fin and fin fixed mould is greater than 10 millimeters, hydraulic telescopic device is respectively arranged with in the outside of two fin fixed moulds, motor driven systems is had in the arranged outside of one end of two fin fixed moulds, motor driven systems comprises motor and three-jaw self-centering chuck A, the output shaft of motor is fixedly connected with three-jaw self-centering chuck A and axle center is oppositely arranged, bracing or strutting arrangement is had in the arranged outside of the other end of two fin fixed moulds, bracing or strutting arrangement comprises bearing and three-jaw self-centering chuck B, bearing and three-jaw self-centering chuck B are rotationally connected along the circumferential direction of three-jaw self-centering chuck B, the axle center of three-jaw self-centering chuck B and three-jaw self-centering chuck A is oppositely arranged, the axis of three-jaw self-centering chuck B and three-jaw self-centering chuck A is arranged on the centre position of two fin fixed moulds.
Beneficial effect of the present invention is: low to the requirement on machining accuracy of the circular arc cutaway on fin, and the diameter of breach can be slightly less than the external diameter of steel pipe; Once can complete the welding of whole H type economizer, weld interval is short, greatly improves production efficiency, reduces power consumption simultaneously, low cost of manufacture; Spacing of fins is substantially unrestricted, can be contracted to 10mm, and the fusion angle of fin and steel pipe can bring up to 169 degree, and the contact surface entirety of fin and steel pipe is melted and welds together, and there is not virtual connection problem, improves the heat exchange efficiency of H type economizer.
accompanying drawing illustrates:
Fig. 1 is welding method first step schematic diagram of the present invention;
Fig. 2 is welding method of the present invention 4th step schematic diagram;
Fig. 3 uses welding equipment of the present invention to carry out the schematic diagram welded;
Fig. 4 is the decomposing schematic representation of fin fixed mould;
Fig. 5 is the schematic diagram that in embodiment two, two three-jaw self-centering chucks are connected by gear;
Fig. 6 is the schematic diagram that in embodiment two, two steel pipes weld with fin.
detailed description of the invention:
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, a kind of steel pipe of boiler H type economizer and the welding method of fin, it comprises welds carrying out friction with steel pipe 1 while of multi-disc fin 2;
The first step, is symmetricly set on steel pipe 1 both sides by multi-disc fin 2, the indentations bottom midpoint of multi-disc fin 2 and the distance of steel pipe 1 are 1 millimeter; Be symmetrical arranged a fin fixed mould 3 respectively in steel pipe 1 both sides, multiple fin 2 is arranged on fin fixed mould 3;
Second step, rotates steel pipe 1 with the speed of 3000-5000r/min; One end of steel pipe 1 is connected with motor driven systems 4, and the other end of steel pipe 1 is arranged on bracing or strutting arrangement 5, and steel pipe 1 and bracing or strutting arrangement 5 are rotationally connected, and drive steel pipe 1 to rotate by motor driven systems 4;
3rd step, advances 1.5-2 millimeter to the steel pipe 1 rotated by multi-disc fin 2 within the time of 2-5 second simultaneously; Hydraulic telescopic device 6 is set respectively in the outside of each fin fixed mould 3, controls fin 2 by hydraulic telescopic device 6 and advance to steel pipe 1, together with the contact surface of steel pipe 1 and fin 2 is melted in because of frictional heat;
4th step, carries out urgency to the steel pipe 1 rotated and stops braking, and steel pipe 1 and fin 2 stop that friction generates heat, are welding as one after cooling.
The preferred method to set up of circular arc cutaway on fin 2: on fin 2, the diameter of circular arc cutaway is identical with the external diameter of steel pipe 1.
The steel pipe of boiler H type economizer and a welding equipment for fin, it comprises fin fixed mould 3, hydraulic telescopic device 6, motor driven systems 4 and bracing or strutting arrangement 5, fin fixed mould 3 has two, two fin fixed moulds 3 are symmetrical arranged, two fin fixed moulds 3 are rectangular shape, the groove 2-1 of multiple plant fin 2 is provided with in the inner surface correspondence of two fin fixed moulds 3, the length of the length of groove 2-1 and width and fin 2 and thickness coincide, the depth capacity of groove 2-1 is the notch depth that the width of fin 2 deducts on fin 2, deduct 10 millimeters again, after making fin 2 insert groove 2-1, the distance of the inner surface of the indentations bottom on fin 2 and fin fixed mould 3 is greater than 10 millimeters, hydraulic telescopic device 6 is respectively arranged with in the outside of two fin fixed moulds 3, motor driven systems 4 is had in the arranged outside of one end of two fin fixed moulds 3, motor driven systems 4 comprises motor 4-1 and three-jaw self-centering chuck A4-2, the output shaft of motor 4-1 is fixedly connected with three-jaw self-centering chuck A4-2 and axle center is oppositely arranged, bracing or strutting arrangement 5 is had in the arranged outside of the other end of two fin fixed moulds 3, bracing or strutting arrangement 5 comprises bearing 5-1 and three-jaw self-centering chuck B5-2, bearing 5-1 and three-jaw self-centering chuck B5-2 is rotationally connected along the circumferential direction of three-jaw self-centering chuck B5-2, the axle center of three-jaw self-centering chuck B5-2 and three-jaw self-centering chuck A4-2 is oppositely arranged, the axis of three-jaw self-centering chuck B5-2 and three-jaw self-centering chuck A4-2 is arranged on the centre position of two fin fixed moulds 3.
Described fin fixed mould 3 has many groups, groove 2-1 spacing on each group of fin fixed mould 3 is arranged between 10mm-40mm, the pitch difference of the groove 2-1 on each group of fin fixed mould 3 is 2mm, needs to change corresponding fin fixed mould 3 during the spacing adjusting fin 2.
Preferably, described fin fixed mould 3 comprises casing 3-1 and case lid 3-2, and casing 3-1 and case lid 3-2 is bolted, and described groove 2-1 is arranged on casing 3-1, the lower surface of case lid 3-2 and groove 2-1 corresponding position are provided with compressing tablet 3-2-1, fin 2 more firmly can be fixed.
Embodiment one: according to the manufacture needs of H type economizer comprising a steel pipe 1, described motor driven systems 4 comprises a motor 4-1, and the output shaft of a motor 4-1 is fixedly connected with a three-jaw self-centering chuck A4-2; Described bracing or strutting arrangement 5 comprises a bearing 5-1 and three-jaw self-centering chuck B5-2.
Embodiment two: according to the manufacture needs of H type economizer comprising two steel pipes 1, described motor driven systems 4 comprises a motor 4-1, a motor 4-1 is connected with two three-jaw self-centering chuck A4-2, one of them three-jaw self-centering chuck A4-2 is fixedly connected with the output shaft of motor 4-1, two three-jaw self-centering chuck A4-2 are connected by gear, make two three-jaw self-centering chuck A4-2 synchronous axial system; Described bracing or strutting arrangement 5 comprises bearing 5-1 and two three-jaw self-centering chuck B5-2, and two three-jaw self-centering chuck B5-2 are arranged with the axis coinciding of two three-jaw self-centering chuck A4-2 respectively.
Claims (2)
1. the steel pipe of boiler with H type economizer and a welding equipment for fin, is characterized in that it comprises fin fixed mould (3), hydraulic telescopic device (6), motor driven systems (4) and bracing or strutting arrangement (5), fin fixed mould (3) has two, two fin fixed moulds (3) are symmetrical arranged, two fin fixed moulds (3) are rectangular shape, the groove (2-1) of multiple plant fin (2) is provided with in the inner surface correspondence of two fin fixed moulds (3), hydraulic telescopic device (6) is respectively arranged with in the outside of two fin fixed moulds (3), motor driven systems (4) is had in the arranged outside of one end of two fin fixed moulds (3), motor driven systems (4) comprises motor (4-1) and three-jaw self-centering chuck A (4-2), the output shaft of motor (4-1) is fixedly connected with three-jaw self-centering chuck A (4-2) and axle center is oppositely arranged, bracing or strutting arrangement (5) is had in the arranged outside of the other end of two fin fixed moulds (3), bracing or strutting arrangement (5) comprises bearing (5-1) and three-jaw self-centering chuck B (5-2), bearing (5-1) and three-jaw self-centering chuck B (5-2) are rotationally connected along the circumferential direction of three-jaw self-centering chuck B (5-2), three-jaw self-centering chuck B (5-2) is oppositely arranged with the axle center of three-jaw self-centering chuck A (4-2), three-jaw self-centering chuck B (5-2) is arranged on the centre position of two fin fixed moulds (3) with the axis of three-jaw self-centering chuck A (4-2), described motor driven systems (4) comprises a motor (4-1), a motor (4-1) is connected with two three-jaw self-centering chuck A (4-2), one of them three-jaw self-centering chuck A (4-2) is fixedly connected with the output shaft of motor (4-1), two three-jaw self-centering chuck A (4-2) are connected by gear, described bracing or strutting arrangement (5) comprises bearing (5-1) and two three-jaw self-centering chuck B (5-2), and two three-jaw self-centering chuck B (5-2) are arranged with the axis coinciding of two three-jaw self-centering chuck A (4-2) respectively.
2. a kind of steel pipe of boiler H type economizer and the welding equipment of fin as claimed in claim 1, it is characterized in that described fin fixed mould (3) comprises casing (3-1) and case lid (3-2), casing (3-1) and case lid (3-2) are bolted, described groove (2-1) is arranged on casing (3-1), and the lower surface of case lid (3-2) and groove (2-1) corresponding position are provided with compressing tablet (3-2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510199721.4A CN104759823B (en) | 2015-04-25 | 2015-04-25 | A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510199721.4A CN104759823B (en) | 2015-04-25 | 2015-04-25 | A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104759823A CN104759823A (en) | 2015-07-08 |
| CN104759823B true CN104759823B (en) | 2016-03-30 |
Family
ID=53642095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510199721.4A Active CN104759823B (en) | 2015-04-25 | 2015-04-25 | A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104759823B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834419B (en) * | 2019-03-19 | 2023-09-22 | 安徽蔚能环保科技股份有限公司 | Welding device for dust bag cage support |
| CN111408912B (en) * | 2020-05-14 | 2021-08-20 | 中国兵器工业第五九研究所 | Preparation method and clamping tool for small-diameter narrow-gap thin-wall multi-blade component |
| CN111922581B (en) * | 2020-07-09 | 2022-07-12 | 淮北扬帆有色冶金科技有限公司 | Fixing device for welding stirring blades |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220953A (en) * | 1975-08-11 | 1977-02-17 | Toyo Hiitaa Gijiyutsu Seisakus | Method of producing high fin tube for heat exchanger |
| JP3637168B2 (en) * | 1996-12-04 | 2005-04-13 | 松下冷機株式会社 | Spiral fin fixing device |
| CN1167532C (en) * | 2001-11-15 | 2004-09-22 | 北京航空航天大学 | Induction friction welding method |
| CN1278812C (en) * | 2003-11-14 | 2006-10-11 | 温振武 | Welding method for heat radiating fin of heat exchanger and equipment thereof |
| CN102921765B (en) * | 2012-10-25 | 2015-10-14 | 佛山神威热交换器有限公司 | A kind of manufacture method of external finned tube and process equipment |
| CN103925576A (en) * | 2014-04-25 | 2014-07-16 | 上海柏宜照明电子有限公司 | LED heat radiator based on heat pipe technology |
-
2015
- 2015-04-25 CN CN201510199721.4A patent/CN104759823B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104759823A (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104759823B (en) | A kind of steel pipe of boiler H type economizer and the welding method of fin and equipment | |
| CN103228940B (en) | Jointer | |
| CN105499304A (en) | Semi-solid forming method of composite pipe | |
| CN201885618U (en) | Heat exchange tube | |
| CN215657224U (en) | Integral new material spiral pipe rolling cutter and spiral pipe production device | |
| CN108592687A (en) | A kind of heat exchanger and its manufacturing method of built-in flight | |
| CN102091861A (en) | Metal stud welding system combined with friction heat source | |
| CN104028598A (en) | Corrugated pipe machining process | |
| CN103447565A (en) | Indexable overturning chuck | |
| CN207234587U (en) | Threephase asynchronous | |
| CN202674068U (en) | Flexible coupling | |
| CN208042865U (en) | A kind of Double-metal heat exchanging tube | |
| CN202602924U (en) | Friction welding copper electrode used in polysilicon vacuum furnaces | |
| CN106402182B (en) | Circumferential phase linear adjustment coupler | |
| CN204030902U (en) | A kind of rotor end ring structure for double cage motor or deep slot motor | |
| CN211465091U (en) | Electrolytic machining machine tool structure of special-shaped inner spiral part | |
| CN204430317U (en) | Lathe precision centering collet tube | |
| CN109175173B (en) | Vertical thread rolling machine | |
| CN102672344A (en) | Joint method of aluminum pipe fitting and steel shaft end fitting | |
| CN102120290A (en) | Annular steel plate assembling and welding method and device | |
| CN201876166U (en) | Heat exchange tube with hole | |
| CN204525899U (en) | The bilateral edge-neatening apparatus of large-diameter steel-plastic composite water pipe material end face | |
| CN203878775U (en) | Long steel tube formed by connecting short steel tubes | |
| CN113618335B (en) | Method for machining sieve teeth | |
| CN117415441B (en) | Welding head, welding device and welding process for heat exchanger end plate and heat transfer tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |