CN106949761B - Spiral plate type heat exchanger and welding method thereof - Google Patents
Spiral plate type heat exchanger and welding method thereof Download PDFInfo
- Publication number
- CN106949761B CN106949761B CN201610911907.2A CN201610911907A CN106949761B CN 106949761 B CN106949761 B CN 106949761B CN 201610911907 A CN201610911907 A CN 201610911907A CN 106949761 B CN106949761 B CN 106949761B
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- heat exchange
- shell
- plate
- exchange plate
- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a spiral plate type heat exchanger which comprises a cylindrical shell and a heat exchange device arranged in the shell, wherein the heat exchange device comprises a first heat exchange plate and a second heat exchange plate which are spirally wound mutually, and a distance column arranged between the first heat exchange plate and the second heat exchange plate, the shell comprises a first shell and a second shell which are welded and arranged in a semicircular barrel shape, and the outer end parts of the first heat exchange plate and the second heat exchange plate are respectively welded with the inner surface of the first shell. According to the invention, the outer end parts of the first heat exchange plate and the second heat exchange plate are respectively welded on the inner surface of the first shell, so that a connecting plate adopted in the prior art is omitted, the stress can be greatly reduced, and the service life of the heat exchanger is prolonged. Meanwhile, compared with the prior art, the welding method reduces the filling amount of the welding seam, reduces the labor intensity of a welder and saves the welding cost.
Description
Technical Field
The invention relates to the field of heat exchangers, in particular to a spiral plate type heat exchanger and a welding method thereof.
Background
The existing spiral plate type heat exchanger is formed by rolling two parallel metal plates to form two independent spiral channels, and two fluids with different temperatures exchange heat through a metal wall. The existing spiral plate type heat exchanger is divided into a type I non-detachable type, a type II detachable type and a type III through type according to the closed condition of a channel. No matter which kind of structural style at present, pass through the connecting plate between its semicircle barrel and the spiral plate, the three welds together. A spiral plate heat exchanger as shown in fig. 6-7, comprising a first shell 11, a second shell 12, a first heat exchange plate 21, a second heat exchange plate 22, a first connecting plate 71 and a second connecting plate 72, wherein one side of the first connecting plate 71 is welded to the first heat exchange plate 21, and the other side is welded to the first shell 11 and the second shell 12 through a welding seam. In order to ensure the welding strength of the first and second housings 11 and 12 and the first connection plate 71, the weld joint needs a large filling amount, which results in that the weld joint is not beautiful and the welding stress is large, and the heat exchanger is easy to damage in long-term use. The welding of the first connecting plate 71 and the first heat exchange plate 21 needs to be performed on two sides of the first connecting plate 71, the labor intensity of welding is high, the working efficiency is low, in the process of detecting the air tightness of the welding seam, only two welding seams on two sides exist gaps to be detected, and if only one welding seam exists, the risk of liquid leakage exists in the use process of the heat exchanger.
Disclosure of Invention
The invention aims to provide a spiral plate type heat exchanger with lower welding stress.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a spiral plate heat exchanger, its includes cylindric casing, sets up heat transfer device in the casing, heat transfer device is including being first heat transfer board and the second heat transfer board that the heliciform convoluteed each other, and sets up first heat transfer board with distance post between the second heat transfer board, the casing includes first casing and the second casing of two semicircle tubbiness that weld mutually set up, first heat transfer board with the outer tip of second heat transfer board respectively with the internal surface of first casing welds mutually.
Preferably, the first shell includes a body in the shape of a circular arc surface, two arc-shaped edge portions located at two ends of the body, and two straight edge portions located at two opposite sides of the body and having a straight line shape, and the welding edges of the outer end portions of the first heat exchange plate and the second heat exchange plate are respectively disposed near the straight edge portions at two sides.
Further preferably, the outer end portions of the first heat exchange plates are 30-40mm away from the straight edge portion of one side of the first housing, and the outer end portions of the second heat exchange plates are 30-40mm away from the straight edge portion of the other side of the first housing.
preferably, the outer end of the first heat exchange plate is bent outward by an angle α to form a first bent portion, the outer side of the first bent portion is welded and fixed to the inner surface of the first housing, the outer end of the second heat exchange plate is bent outward by an angle β to form a second bent portion, and the outer side of the second bent portion is welded and fixed to the inner surface of the first housing.
further preferably, the length of the first bend is 20-50mm, and 40 ° < α <50 °.
Preferably, the spiral plate heat exchanger further comprises a first heat exchange channel and a second heat exchange channel wound by the first heat exchange plate and the second heat exchange plate, a first heat exchange port and a second heat exchange port communicated with the first channel, and a third heat exchange port and a fourth heat exchange port communicated with the second channel.
The welding method of the spiral plate type heat exchanger comprises the following steps:
1) the first heat exchange plate and the second heat exchange plate are wound into a spiral heat exchange device;
2) sleeving the first shell outside the heat exchange device, and respectively welding the outer end parts of the first heat exchange plate and the second heat exchange plate with the inner surface of the first shell;
3) and splicing the first shell and the second shell and welding the first shell and the second shell into a cylinder.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the invention, the outer end parts of the first heat exchange plate and the second heat exchange plate are respectively welded on the inner surface of the first shell, so that a connecting plate adopted in the prior art is omitted, the stress can be greatly reduced, and the service life of the heat exchanger is prolonged. Meanwhile, compared with the prior art, the welding method reduces the filling amount of the welding seam, reduces the labor intensity of a welder and saves the welding cost.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged partial schematic view A of FIG. 2;
FIG. 4 is an enlarged partial schematic view B of FIG. 2;
FIG. 5 is a schematic view of a first housing;
FIG. 6 is a schematic top view of the prior art;
fig. 7 is a partially enlarged schematic view C of fig. 6.
In the above drawings: 11. a first housing; 111. a body; 112. an arc edge part; 113. a straight edge portion; 12. a second housing; 21. a first heat exchange plate; 211. a first bent portion; 22. a second heat exchange plate; 221. a second bent portion; 31. a first heat exchange channel; 32. a second heat exchange channel; 41. a first heat exchange port; 42. a second heat exchange port; 43. a third heat exchange port; 44. a fourth heat exchange port; 51. a first weld; 52. a second weld; 53. a third weld; 54. a fourth weld; 6. a distance pole; 71. a first connecting plate; 72. a second connecting plate.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which:
the first embodiment is as follows: referring to fig. 1, a spiral plate heat exchanger includes a cylindrical housing, and a heat exchanging device disposed in the housing, where the heat exchanging device includes a first heat exchanging plate 21 and a second heat exchanging plate 22 wound spirally with each other, and a plurality of distance pillars 6 disposed between the first heat exchanging plate 21 and the second heat exchanging plate 22, the housing includes a first housing 11 and a second housing 12 welded to each other, and outer ends of the first heat exchanging plate 21 and the second heat exchanging plate 22 are welded to an inner surface of the first housing 11, respectively.
The first shell 11 includes a body 111 in a shape of a circular arc surface, two arc-shaped edge portions 112 located at two ends of the body 111, and two straight edge portions 113 located at two opposite sides of the body 111, and the welding edges of the outer ends of the first heat exchange plate 21 and the second heat exchange plate 22 are respectively disposed near the straight edge portions 113 at two sides. The distance between the first welding seam 51 between the outer end of the first heat exchange plate 21 and the body 111 and the straight edge 113 on one side of the first shell 11 is 30-40mm, the distance between the second welding seam 52 between the outer end of the second heat exchange plate 22 and the body 111 and the straight edge 113 on the other side of the first shell 11 is 30-40mm, and the distance can ensure the welding strength and reduce the influence between two adjacent welding places.
The outer end of the first heat exchange plate 21 is bent outward by an angle of 40 degrees to 50 degrees to form a first bent portion 211, the outer side of the first bent portion 211 is welded and fixed to the inner surface of the first shell 11, the outer end of the second heat exchange plate 22 is bent outward by an angle of 40 degrees to 50 degrees to form a second bent portion 221, and the outer side of the second bent portion 221 is welded and fixed to the inner surface of the first shell 11. The length of the first bending part 211 is 20-50mm, and the length of the first bending part 211 is 20-50 mm. The bending part can reduce the welding difficulty and improve the welding quality.
After the first shell 11 and the second shell 12 are spliced, the seam has an outward V-shaped opening, and the third welding seam 53 and the fourth welding seam 54 are respectively arranged along the V-shaped openings on the two sides.
The spiral plate type heat exchanger further comprises a first heat exchange channel 31 and a second heat exchange channel 32 formed by coiling the first heat exchange plate 21 and the second heat exchange plate 22, a first heat exchange port 41 and a second heat exchange port 42 communicated with the first channel 31, and a third heat exchange port 43 and a fourth heat exchange port 44 communicated with the second channel 32.
The welding method of the spiral plate type heat exchanger comprises the following steps:
1) a heat exchange device in which the first heat exchange plate 21 and the second heat exchange plate 22 are wound in a spiral shape;
2) sleeving the first shell 11 outside the heat exchange device, and welding the outer end parts of the first heat exchange plate 21 and the second heat exchange plate 22 with the inner surface of the first shell 11 respectively;
3) the first case 11 and the second case 12 are joined together and welded into a cylindrical shape.
Because the outer end of the first heat exchange plate and the outer end of the second heat exchange plate are respectively welded on the inner surface of the first shell, a connecting plate adopted in the prior art is omitted, the stress can be reduced to a greater extent, and the service life of the heat exchanger is prolonged. Meanwhile, compared with the prior art, the welding method reduces the filling amount of the welding seam, reduces the labor intensity of a welder and saves the welding cost.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a spiral plate heat exchanger, its includes cylindric casing, sets up heat transfer device in the casing, heat transfer device is including being first heat transfer board and the second heat transfer board that the heliciform convoluteed each other, and sets up first heat transfer board with distance post between the second heat transfer board, the casing includes the first casing and the second casing of two semicircle tubbiness that weld mutually set up, its characterized in that: the outer end parts of the first heat exchange plate and the second heat exchange plate are respectively welded with the inner surface of the first shell;
the first shell comprises a circular arc surface-shaped body, two circular arc edge parts positioned at two ends of the body and two linear straight edge parts positioned at two opposite sides of the body, and welding edges of the outer end parts of the first heat exchange plate and the second heat exchange plate are respectively arranged close to the straight edge parts at two sides;
the outer end part of the first heat exchange plate is 30-40mm away from the straight edge part on one side of the first shell, and the outer end part of the second heat exchange plate is 30-40mm away from the straight edge part on the other side of the first shell;
the outer end part of the first heat exchange plate is bent outwards by an angle β to form a first bent part, the outer side edge of the first bent part is welded and fixed with the inner surface of the first shell, the outer end part of the second heat exchange plate is bent outwards by a beta angle to form a second bent part, and the outer side edge of the second bent part is welded and fixed with the inner surface of the first shell;
the length of the first bend is 20-50mm, 40 ° < α <50 °.
2. A spiral plate heat exchanger according to claim 1, wherein: the spiral plate type heat exchanger also comprises a first heat exchange channel and a second heat exchange channel which are formed by coiling the first heat exchange plate and the second heat exchange plate, a first heat exchange port and a second heat exchange port which are communicated with the first heat exchange channel, and a third heat exchange port and a fourth heat exchange port which are communicated with the second heat exchange channel.
3. A welding method for a spiral plate heat exchanger according to any of claims 1-2, characterized by comprising the steps of:
1) the first heat exchange plate and the second heat exchange plate are wound into a spiral heat exchange device;
2) sleeving the first shell outside the heat exchange device, and respectively welding the outer end parts of the first heat exchange plate and the second heat exchange plate with the inner surface of the first shell;
3) and splicing the first shell and the second shell and welding the first shell and the second shell into a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911907.2A CN106949761B (en) | 2016-10-20 | 2016-10-20 | Spiral plate type heat exchanger and welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911907.2A CN106949761B (en) | 2016-10-20 | 2016-10-20 | Spiral plate type heat exchanger and welding method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106949761A CN106949761A (en) | 2017-07-14 |
| CN106949761B true CN106949761B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610911907.2A Active CN106949761B (en) | 2016-10-20 | 2016-10-20 | Spiral plate type heat exchanger and welding method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981879B (en) * | 2020-07-29 | 2022-01-14 | 扬州派斯特换热设备有限公司 | Welding assembly process for plate heat exchanger unit |
| EP4261487A1 (en) * | 2022-04-13 | 2023-10-18 | HAIER Germany GmbH | Heat exchanger unit, heat exchanger device, dishwasher, washing machine and process of manufacturing a heat exchanger unit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1551524A1 (en) * | 1967-03-25 | 1970-01-15 | Edmund Schauff | Multi-chamber spiral heat exchanger |
| CN2457547Y (en) * | 2000-12-31 | 2001-10-31 | 中国船舶重工集团公司第七研究院第七○三研究所 | Bearing medium pressure high adhesive flow screw plate heat exchanger |
| CN1710368A (en) * | 2004-06-18 | 2005-12-21 | 高尧林 | Multi-spiral-path chasing |
| CN1825026A (en) * | 2006-03-28 | 2006-08-30 | 陈汝清 | Solar energy water heater |
| CN201715231U (en) * | 2010-04-13 | 2011-01-19 | 昆明理工大学 | Integral bundling multi-layer cylinder of high-temperature high-pressure or normal-temperature high-pressure hydrogen-contacting equipment |
| CN102848087A (en) * | 2011-06-30 | 2013-01-02 | 五冶集团上海有限公司 | Tank fabricating and welding method |
| CN204329686U (en) * | 2014-12-11 | 2015-05-13 | 华星（宿迁）化学有限公司 | Be convenient to the spiral heat exchanger cleaned |
| CN204495135U (en) * | 2015-02-06 | 2015-07-22 | 中国石油大学(华东) | The board-like reacting replacing heat device of Novel spiral |
| EP2981780A1 (en) * | 2013-04-04 | 2016-02-10 | Vahterus Oy | Plate heat exchanger and method for constructing multiple passes in the plate heat exchanger |
| CN206095011U (en) * | 2016-10-20 | 2017-04-12 | 苏州市锦翔压力容器制造有限公司 | Spiral -plate heat exchanger |
-
2016
- 2016-10-20 CN CN201610911907.2A patent/CN106949761B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1551524A1 (en) * | 1967-03-25 | 1970-01-15 | Edmund Schauff | Multi-chamber spiral heat exchanger |
| CN2457547Y (en) * | 2000-12-31 | 2001-10-31 | 中国船舶重工集团公司第七研究院第七○三研究所 | Bearing medium pressure high adhesive flow screw plate heat exchanger |
| CN1710368A (en) * | 2004-06-18 | 2005-12-21 | 高尧林 | Multi-spiral-path chasing |
| CN1825026A (en) * | 2006-03-28 | 2006-08-30 | 陈汝清 | Solar energy water heater |
| CN201715231U (en) * | 2010-04-13 | 2011-01-19 | 昆明理工大学 | Integral bundling multi-layer cylinder of high-temperature high-pressure or normal-temperature high-pressure hydrogen-contacting equipment |
| CN102848087A (en) * | 2011-06-30 | 2013-01-02 | 五冶集团上海有限公司 | Tank fabricating and welding method |
| EP2981780A1 (en) * | 2013-04-04 | 2016-02-10 | Vahterus Oy | Plate heat exchanger and method for constructing multiple passes in the plate heat exchanger |
| CN204329686U (en) * | 2014-12-11 | 2015-05-13 | 华星（宿迁）化学有限公司 | Be convenient to the spiral heat exchanger cleaned |
| CN204495135U (en) * | 2015-02-06 | 2015-07-22 | 中国石油大学(华东) | The board-like reacting replacing heat device of Novel spiral |
| CN206095011U (en) * | 2016-10-20 | 2017-04-12 | 苏州市锦翔压力容器制造有限公司 | Spiral -plate heat exchanger |
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| CN106949761A (en) | 2017-07-14 |
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