US20160123676A1 - Plate-connection type heat exchanger - Google Patents

Plate-connection type heat exchanger Download PDF

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Publication number
US20160123676A1
US20160123676A1 US14/925,518 US201514925518A US2016123676A1 US 20160123676 A1 US20160123676 A1 US 20160123676A1 US 201514925518 A US201514925518 A US 201514925518A US 2016123676 A1 US2016123676 A1 US 2016123676A1
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US
United States
Prior art keywords
plate
wing part
top plate
heat exchanger
bottom plate
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.)
Abandoned
Application number
US14/925,518
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English (en)
Inventor
Hyun Cheol Lee
Heon Jae Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RINNAI KOREA CO Ltd
Original Assignee
RINNAI KOREA CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RINNAI KOREA CO Ltd filed Critical RINNAI KOREA CO Ltd
Assigned to RINNAI KOREA CO., LTD. reassignment RINNAI KOREA CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEE, HEON JAE, LEE, HYUN CHEOL
Publication of US20160123676A1 publication Critical patent/US20160123676A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D9/0031—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 for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—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 for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—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 for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • F28F2275/04—Fastening; Joining by brazing
    • 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
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements

Definitions

  • the present disclosure relates to a heat exchanger and, more specifically, to a plate-connection type heat exchanger, wherein the assembling and connection of plates used in a heat exchanger can be simplified so as to reduce the manufacturing time thereof and manufacturing process, thereby improving productivity and product quality.
  • a plate-shaped heat exchanger used in a boiler employs plate generally uses stacked plate chambers for the improvement of heat exchange efficiency with respect to the combustion heat generated in a burner part.
  • a plate-shaped heat exchanger 1 in Korean Reg. Utility Model Publication No. 20-0275401, wherein a top plate 10 having outlets and inlets for direct water and heating water is positioned at an upper side and a plurality of first and second path plates 20 and 30 are stacked in a mutually intersecting shape at the lower side of the top plates in such a manner that paths are formed so as to prevent the mixing of the fluids, which flow through the outlets and inlets for the direct water and the heating water, from each other, as shown in FIG. 1 and FIG. 2 .
  • the positions of the paths, through which the fluids flow intersect each other in the vertical direction such that the fluids passing through the paths are not mixed with each other while passing through the paths but the fluids carry out the heat exchange operations with each other, wherein the surface contact areas between the mutually intersecting paths are connected by brazing welding.
  • the brazing welding is carried out relatively weakly at the corner parts rather than in the centers of the plates so that local pressure is generated due to the excessive water pressure by water hammering and cracks are generated in the peripheries of the welded parts.
  • the plate chambers for the prior art heat exchanger as described above have a wing structure, in which the first path plates 20 and the second path plates 30 are aligned in a same direction, such that the wing surfaces of the path plates are overlapped to be connected. Therefore, the brazing welding is carried out for the connection by using copper plates or after additionally applying a solvent in accordance with circumstances.
  • the prior art plate chambers if the brazing work is carried out in a state, where the wing surfaces of the first path plate 20 and the second path plate 30 are overlapped or the solvent 2 is applied to the top parts of the wing surfaces of the second path plates, as shown in FIG. 3 , the surfaces to be applied with the solvent 2 are small, or the volume of the solvent 2 is expanded due to the thermal deformation of the basic materials between the wing surfaces, or bubbles are generated above the melting temperature thereof. Therefore, even though a section having the bubbles can maintain the airtightness for a short time, the section having the bubbles is likely to be eroded with speed after a certain time. Consequently, the prior art has advantages of water leakage, crack generation and the like in the welded parts.
  • the present invention has been made to solve the above-mentioned problems occurring in the prior arts, and it is an objective of the present invention to provide a plate-connection type heat exchanger, the edge wing parts of a top plate and a bottom plate, which form a plate chamber of a heat exchanger, have different angles from each other such that the stacking and assembling of the top plate and the bottom plate can be simplified and the failure in the welding work can be improved.
  • a plate-connection type heat exchanger characterized in that the wing part of the top plate is folded downwards, and the wing part of the bottom plate is formed with a fitting surface to be fitted with the wing part of the top plate and a base surface folded in the outward direction from the fitting surface, such that the wing part of the top plate is fitted inside the fitting surface and a solvent applying space H is formed between the base surface and the wing part of the top plate.
  • the wing part of the top plate is formed to be folded downwards at an obtuse angle, and the fitting surface forming the wing part of the bottom plate is formed to be folded upwards.
  • a plate-connection type heat exchanger characterized in that the wing part of the top plate is folded downwards at an obtuse angle, and a fitting surface forming the wing part of the bottom plate is formed to folded upwards in a direction forming a right angle to an obtuse angle, such that the wing part of the top plate is fitted inside the fitting surface and a solvent applying space H is formed between the fitting surface and the wing part of the top plate.
  • the wing part of the top plate is formed to be folded downwards at an obtuse angle, and the fitting surface forming the wing part of the bottom plate is formed to be folded upwards at an acute angle in an inward direction.
  • the wing part of the top plate is formed to be folded downwards at a right angle, and the fitting surface forming the wing part of the bottom plate is formed to be folded upwards at a right angle.
  • a plurality of embossing protrusions are formed to be protruded at a predetermined interval on the inside of the fitting surface of the bottom plate wing part, and a bending protrusion is formed on the front end of the top plate wing part so as to be held by and fitted with the embossing protrusions.
  • the assembling of the top plate and the bottom plate of a plate member used in a heat exchanger can be conveniently and easily carried out, thereby improving the productivity.
  • an area and a volume for a solvent to be applied to the wing parts of the top plate and the bottom plate can be uniformly formed, thereby preventing defective brazing welding. Even though a defective is generated, secondary solvent applying is enabled using the solvent applying space, thereby reducing a fraction defective.
  • the assembling of the top plate and the bottom plate can be conveniently carried out and the solvent can be applied from the outside after the assembling such that the automated manufacturing of the plate-connection type heat exchanger can be realized, thereby noticeably improving the productivity.
  • FIG. 1 is a perspective view for illustrating the appearance of a prior art plate-shaped heat exchanger.
  • FIG. 2 is a cross-sectional view for illustrating the prior art plate-shaped heat exchanger.
  • FIG. 3 is an expanded cross-sectional view for illustrating the prior art plate-shaped heat exchanger.
  • FIG. 4A to FIG. 4C are expanded cross-sectional view for illustrating the coupling process to which the present invention is applied.
  • FIG. 5A is a partially expanded cross-sectional view for illustrating an embodiment of the present invention.
  • FIG. 5B is an expanded cross-sectional view for illustrating an embodiment of the present invention.
  • FIG. 6A and FIG. 6B are expanded cross-sectional view for illustrating another embodiment of the present invention.
  • a term such as a “unit”, a “module”, a “block” or like when used in the specification, represents a unit that processes at least one function or operation, and the unit or the like may be implemented by hardware or software or a combination of hardware and software.
  • a plate-connection type heat exchanger can simplify the assembling and connection of plates used in a heat exchanger, thereby reducing the manufacturing time and the manufacturing process and thus improving the productivity and product quality.
  • a heat exchanger according to an embodiment of the present invention includes plates 50 , each including a top plate 60 and a bottom plate 70 , are stacked and then the wing parts 61 , 71 of the top plate 60 and the bottom plate 70 are brazed to be jointed together such that a path is formed in the plate 50 .
  • the shapes of the wing parts 61 , 71 are deformed and subject to brazing welding, thereby preventing a defective.
  • the wing part 61 of the top plate 60 is formed to be folded downwards at an obtuse angle
  • the wing part 71 of the bottom plate 70 is formed to have a fitting surface 72 folded upwards at an acute angle in an inward direction and a base surface 73 folded in the outward direction from the fitting surface 72 , as shown in FIG. 4A .
  • a solvent applying space H is formed between the top plate wing part 61 and the base surface 73 of the bottom plate wing part 71 , such that a worker can easily apply a solvent 2 to the solvent applying space H.
  • the plate 50 which is thus integrally formed by the connection between the wing part 61 of the top plate 60 and the wing part 71 of the bottom plate 70 , has the solvent applying space H which is formed along the coupled edge part so as to be easily applied with the solvent 2 from the outside, thereby enabling automation.
  • the present invention if a defective is found in the leakage test of the plate 50 after the brazing welding, the solvent 2 is applied again to the solvent applying space H and then the brazing welding is carried out again. Therefore, it is possible to prevent the generation of defectives.
  • a plurality of embossing protrusions 72 a are formed at a predetermined interval along the edge of the fitting surface 72 of the bottom plate wing part 71 , and a bending protrusion 61 a is formed on the front end of the top plate wing part 61 so as to be held by and fitted with the embossing protrusions 72 a, as shown in FIG. 5A .
  • a gap is formed between the fitting surface 72 of the bottom plate wing part 71 and the top plate wing part 61 by the embossing protrusions 72 a such that the solvent 2 to be applied to the solvent applying space H is introduced into the gap and the brazing welding is carried out in this state, thereby maximizing the connection strength.
  • a plate 50 in which the wing part 61 of the top plate 60 is folded downwards at an obtuse angle while the wing part 71 of the bottom plate 70 has a fitting surface folded upwards in a right angle direction and a base surface 73 folded in the outward direction from the fitting surface 72 , such that the wing part 61 of the top plate 60 is fitted inside the fitting surface 72 , as shown in FIG. 6A .
  • the plate 50 as above has a predetermined gap formed between the top plate wing part 61 and the fitting surface 72 of the bottom plate wing part 71 , wherein, if the solvent 2 is applied to the solvent applying space H, the solvent is introduced into the gap and the brazing welding is carried out, thereby maximizing the connection strength.
  • FIG. 6B it is also possible to form a plate 50 , in which the top plate wing part 61 is folded downwards at an obtuse angle and the bottom plate wing part 71 has a fitting surface 72 folded upwards at a right angle to an obtuse angle.
  • the top plate wing part 61 is held inside the fitting surface 72 of the bottom plate wing part 71 , and the connection therebetween is carried out by applying the solvent 2 to the solvent applying space H between the top plate wing part 61 and the fitting surface 72 of the bottom plate wing part 71 and carrying out the brazing welding.
  • the wing part 61 of the top plate 60 is simply assembled into the wing part 71 of the bottom plate 70 and the applying of the solvent 2 is readily carried out, such that the top plate 60 and the bottom plate 70 can be conveniently connected.
  • the present disclosure is not necessarily limited to such embodiments. That is, within the objective scope of the present disclosure, the components may operate in a selectively coupled manner of at least one of them. Also, each of the components may be implemented as a single independent hardware, but may be implemented as a computer program having a program module that is composed of a selective combination of some or all of the components and performs some or all of functions of the combinations in one or more hardware. Also, codes and code segments constituting the computer-readable code may be easily inferred by one of ordinary skill in the art.
  • the computer-readable code is stored in a computer-readable medium and is read and executed by a computer system, to implement the exemplary embodiments of the present disclosure.
  • the recording medium of the computer-readable code may include a magnetic recording medium, an optical recording medium, and the like.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US14/925,518 2014-10-30 2015-10-28 Plate-connection type heat exchanger Abandoned US20160123676A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0149363 2014-10-30
KR1020140149363A KR101813048B1 (ko) 2014-10-30 2014-10-30 플레이트 접합형 열교환기

Publications (1)

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US20160123676A1 true US20160123676A1 (en) 2016-05-05

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US14/925,518 Abandoned US20160123676A1 (en) 2014-10-30 2015-10-28 Plate-connection type heat exchanger

Country Status (5)

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US (1) US20160123676A1 (it)
JP (1) JP6625399B2 (it)
KR (1) KR101813048B1 (it)
CN (1) CN105180691A (it)
IT (1) ITUB20155105A1 (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2664103A1 (es) * 2016-10-17 2018-04-18 Valeo Térmico, S. A. Placa de apilamiento para un intercambiador de calor de placas apiladas y un intercambiador de calor de placas apiladas
US10876794B2 (en) * 2017-06-12 2020-12-29 Ingersoll-Rand Industrial U.S., Inc. Gasketed plate and shell heat exchanger
US11821694B2 (en) 2018-08-24 2023-11-21 Alfa Laval Corporate Ab Heat transfer plate and cassette for plate heat exchanger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109341145B (zh) * 2018-09-27 2021-04-23 江西新电汽车空调系统有限公司 一种带内翅片的板式换热器及车用空调系统

Citations (1)

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FR2746892B1 (fr) * 1996-03-28 1998-05-22 Valeo Climatisation Dispositif de raccordement pour echangeur de chaleur a plaques, en particulier pour vehicule automobile
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Publication number Priority date Publication date Assignee Title
US20130228307A1 (en) * 2010-11-15 2013-09-05 T.Rad Co., Ltd. Heat exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2664103A1 (es) * 2016-10-17 2018-04-18 Valeo Térmico, S. A. Placa de apilamiento para un intercambiador de calor de placas apiladas y un intercambiador de calor de placas apiladas
US10876794B2 (en) * 2017-06-12 2020-12-29 Ingersoll-Rand Industrial U.S., Inc. Gasketed plate and shell heat exchanger
US11821694B2 (en) 2018-08-24 2023-11-21 Alfa Laval Corporate Ab Heat transfer plate and cassette for plate heat exchanger

Also Published As

Publication number Publication date
JP6625399B2 (ja) 2019-12-25
CN105180691A (zh) 2015-12-23
JP2016090221A (ja) 2016-05-23
KR20160053058A (ko) 2016-05-13
KR101813048B1 (ko) 2017-12-29
ITUB20155105A1 (it) 2017-04-29

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AS Assignment

Owner name: RINNAI KOREA CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, HYUN CHEOL;LEE, HEON JAE;REEL/FRAME:036905/0325

Effective date: 20151016

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION