WO2011069327A1 - Procédé de fabrication d'ensemble échangeur de chaleur à couvercle inférieur de chauffe-eau et outil particulier associé - Google Patents

Procédé de fabrication d'ensemble échangeur de chaleur à couvercle inférieur de chauffe-eau et outil particulier associé Download PDF

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Publication number
WO2011069327A1
WO2011069327A1 PCT/CN2010/001915 CN2010001915W WO2011069327A1 WO 2011069327 A1 WO2011069327 A1 WO 2011069327A1 CN 2010001915 W CN2010001915 W CN 2010001915W WO 2011069327 A1 WO2011069327 A1 WO 2011069327A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottom cover
cover
cylindrical section
water heater
manufacturing
Prior art date
Application number
PCT/CN2010/001915
Other languages
English (en)
Chinese (zh)
Inventor
章友根
林守菊
张晓平
刘茂松
Original Assignee
艾欧史密斯(中国)热水器有限公司
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 艾欧史密斯(中国)热水器有限公司 filed Critical 艾欧史密斯(中国)热水器有限公司
Priority to US13/514,679 priority Critical patent/US20120240402A1/en
Publication of WO2011069327A1 publication Critical patent/WO2011069327A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • B21D51/08—Making hollow objects characterised by the structure of the objects ball-shaped objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • 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
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0078—Heat exchanger arrangements
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0086—Partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/08—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes pressed; stamped; deep-drawn
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49393—Heat exchanger or boiler making with metallurgical bonding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53113—Heat exchanger
    • Y10T29/53122—Heat exchanger including deforming means

Definitions

  • the invention relates to a method for manufacturing a water heater housing part, in particular to a water heater bottom cover heat exchange assembly manufacturing process method, and also relates to special tooling, belonging to the technical field of water heater manufacturing. Background technique
  • the bottom cover heat exchange solar water heater is a new type of solar water heater (for details, please refer to the applicant's application number 200810196064. 8 and application number 200820185858.
  • X name is "pressure-bearing solar water heater" in China Patent application)
  • the basic structural feature is that the bottom of the cylindrical water storage liner is welded with a bottom cover heat exchange assembly composed of a bottom cover and a cover.
  • the circulating water in the unheated bottom cover heat exchange assembly is heated by the solar energy, and then the heat is transferred to the cold water in the pressurized water storage tank through the bottom cover in the bottom cover heat exchange assembly, thereby Achieve the purpose of heating cold water. Because of the high heat exchange efficiency, low manufacturing cost and comfortable bath, the water heater has a good market prospect.
  • the manufacture of the bottom cover heat exchange assembly as a core component is a problem. Because, in order to prevent corrosion and avoid scaling, the double-sided and covered convex surface of the bottom cover that is in contact with water needs to be coated with enamel, so when manufacturing the bottom cover heat exchange assembly, it is necessary to ensure the strength and sealing property, and to prevent enamel. The surface is destroyed during the splicing process.
  • the object of the present invention is to provide a water heater bottom cover heat exchange assembly manufacturing process method and special tooling, thereby effectively solving the problem in the manufacture of the bottom cover heat exchange solar water heater, and ensuring the required strength of the bottom cover heat exchange assembly, Rigid and ideal sealing while ensuring adequate corrosion protection.
  • the manufacturing method and special tool for the water heater bottom cover heat exchange assembly of the present invention comprises the following steps:
  • the first step forming: After the blanking, the bottom cover and the Mongolian crown and the cylindrical segment are respectively stretched out. a cover, the joint of the spherical crown surface and the cylindrical section has a circular arc transition, the radius of curvature of the spherical cap surface of the bottom cover is smaller than the radius of curvature of the spherical cap surface of the covered cover, and the inner diameter of the cylindrical section of the bottom cover and the covered cap.
  • the outer diameter of the segment is matched, and the length of the cylindrical section of the bottom cover is greater than the length of the cylindrical section of the cover;
  • the second step, coating coating the enamel on the surface of the bottom cover except the inner surface of the cylindrical section and the convex surface except the outer surface of the cylindrical section, and sintering and solidifying; (the enamel-free part is not required to be coated) That is, it can be pre-coated or can be treated by post-coating; usually, the enamel thickness of the concave surface of the bottom cover is controlled to ⁇ ⁇ ⁇ - -200 ⁇ ⁇ , and the thickness of the convex enamel is controlled at 180 ⁇ ⁇ - 360 m. The thickness of the convex enamel of the covered cover is controlled at 180 ⁇ ⁇ - - 360 ⁇ ⁇ ;
  • the third step the combination: pressing the bottom cover outside the cover in the same manner as the direction of the crown of the ball, until the inner surface of the cylindrical section of the bottom cover and the outer surface of the cylindrical section of the cover are in full close contact;
  • the transition arc radius of the bottom cover is greater than the transition arc radius of the cover.
  • the third step above requires that the crimping depth after crimping be ensured to ensure that the enamel on the bottom cover and the cover is not damaged.
  • the special tool used for this purpose is composed of upper and lower molds that can move relative to each other; a cover surface having a convex cover surface, the periphery of the cover positioning surface has a guiding cone for guiding the periphery of the bottom cover around the cover, the depth of the guide cone is the inner surface of the cylindrical section of the bottom cover and The outer surface of the cylindrical section of the cover is completely in close contact; the upper mold is fixed with a pressure piece that conforms to the shape of the surface of the bottom cover.
  • the cover is positioned on the lower mold positioning surface, and the bottom cover is fastened to the cover, and the guide cone is inserted into the periphery. Then, the upper and lower molds are aligned, and the bottom cover is pressed over the cover, and the inner surface of the cylindrical section of the bottom cover and the outer surface of the cylindrical section of the cover are completely in close contact.
  • Figure 1 is a schematic view showing a forming process of an embodiment of the present invention.
  • Figure 2 is a schematic view showing the coating process of the embodiment of Figure 1.
  • Fig. 3 is a schematic view showing the assembly process of the embodiment of Fig. 1.
  • Fig. 4 is a schematic view showing the welding process of the embodiment of Fig. 1.
  • Fig. 5 is a schematic view showing the structure of a special tooling of the embodiment of Fig. 1.
  • the manufacturing process of the bottom cover heat exchange assembly of this embodiment is as shown in FIG. 1 to FIG. 4, and includes the following steps:
  • First step forming: After the blanking, the bottom cover 1 (b in Fig. 1) and the cover 2 (a in Fig. 1) composed of the spherical crown and the cylindrical segment are respectively stretched, and the bottom cover 1 and the cover 2 are
  • the joint of the spherical crown surface and the cylindrical section has a circular arc transition, and the radius of curvature of the spherical surface of the bottom cover 1 is smaller than the radius of curvature of the spherical surface of the cover 2, and the inner diameter of the cylindrical section of the bottom cover 1 and the cylindrical section of the cover 2
  • the diameter of the cylindrical section of the bottom cover 1 is greater than the length of the cylindrical section of the cover 2, and the radius of the transition arc of the bottom cover 1 is larger than the radius of the transition arc of the cover 2;
  • the second step coating: respectively, after covering the inner surface N of the cylindrical section of the bottom cover 1 (b in Fig. 2) and the outer surface N of the cylindrical section of the cover 2 (a in Fig. 2), the bottom cover 1 and the cover 2
  • the other surface is coated with enamel; in view of the need to ensure the service life, but also to ensure the pressure bearing function of the enamel liner, due to the bottom
  • the convex surface of the cover 1 is a component of the inner liner and is subjected to pressure; and the concave surface constituting the heat exchange inner cavity is not pressed, so the concave enamel thickness is controlled at 100 ⁇ ⁇ --200 ⁇ ⁇ , and the convex enamel thickness is controlled at 180 ⁇ .
  • the thickness of the convex enamel of the cover is controlled from 180 ⁇ m to ⁇ 360 ⁇ m, and then sintered and solidified;
  • the third step combination: the bottom cover 1 is pressed in the same manner as the crown of the spherical crown Outside the cover 2, until the transition arc of the bottom cover 1 is in close contact with the transition arc edge of the cover 2 (see Fig. 3);
  • the fourth step the splicing: the cylindrical section along the cover 2 fits over the bottom cover 1 cylinder The edge fillet welding of the segments causes the bottom cover 1 and the cover 2 to form a bottom cover heat exchange assembly having a heat exchange inner chamber (see Fig. 4).
  • the special tool for realizing the third step of the above manufacturing process is shown in Fig. 5, and is composed of an upper die 3 and a lower die 4 which are relatively movable.
  • the lower mold 4 has a cover positioning surface that is convex upward, and a bottom cover positioning guide block 5 is fixed on the periphery of the cover positioning surface.
  • the middle portion of the bottom cover positioning guide block 5 has a guide for guiding the periphery of the bottom cover around the cover. Cone, the depth of the guiding cone is limited to the complete close contact between the inner surface of the combined bottom cap cylindrical section and the outer surface of the covered cylindrical section.
  • the upper mold 3 is fixed with a concave pressing block on the polyurethane rubber which has a shape matching with the surface of the bottom cover, and the outer side has a limiting block 6 for limiting the depth of depression.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'ensemble échangeur de chaleur à couvercle inférieur de chauffe-eau. Le procédé comprend les étapes suivantes : l'extension respective d'un couvercle inférieur (1) et d'un couvercle de masquage (2), les deux étant composés d'une surface de sommet sphérique et d'une section cylindrique après le découpage; le dépôt d'email sur les autres surfaces à l'exception de la surface interne de la section cylindrique du couvercle inférieur et les autres surfaces convexes à l'exception de la surface extérieure de la section cylindrique du couvercle de masquage, puis leur frittage et leur solidification; la pression du couvercle inférieur en dehors du couvercle de masquage jusqu'à ce que la surface interne de la section cylindrique du couvercle inférieur entre totalement et étroitement en contact avec la surface externe de la section cylindrique du couvercle de masquage; et la soudure d'angle le long du coin de bord où la section cylindrique du couvercle inférieur est fixée sur la section cylindrique du couvercle de masquage, de sorte que le couvercle inférieur et le couvercle de masquage forment un ensemble échangeur de chaleur à couvercle inférieur comportant une cavité d'échange de chaleur interne. L'invention concerne également un outil particulier utilisé dans le procédé. Le procédé permet d'obtenir un ensemble échangeur de chaleur à couvercle inférieur présentant une résistance et une rigidité élevées, une meilleure performance d'étanchéité et une propriété antiseptique.
PCT/CN2010/001915 2009-12-08 2010-11-29 Procédé de fabrication d'ensemble échangeur de chaleur à couvercle inférieur de chauffe-eau et outil particulier associé WO2011069327A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/514,679 US20120240402A1 (en) 2009-12-08 2010-11-29 Manufacturing method for bottom cover heat exchanging assembly of water heater and special tool thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009102325967A CN101837544B (zh) 2009-12-08 2009-12-08 热水器底盖换热总成制造工艺方法及专用工装
CN200910232596.7 2009-12-08

Publications (1)

Publication Number Publication Date
WO2011069327A1 true WO2011069327A1 (fr) 2011-06-16

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Country Link
US (1) US20120240402A1 (fr)
CN (1) CN101837544B (fr)
WO (1) WO2011069327A1 (fr)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
CN101837544B (zh) * 2009-12-08 2011-08-17 艾欧史密斯(中国)热水器有限公司 热水器底盖换热总成制造工艺方法及专用工装
CN103624524B (zh) * 2013-12-19 2015-12-23 浙江家得乐太阳能有限公司 水箱换热层安装设备
CN105643284B (zh) * 2016-03-01 2017-09-15 芜湖同创模具机械有限公司 一种汽车铝件加工模具
CN105563134B (zh) * 2016-03-01 2017-10-27 芜湖同创模具机械有限公司 一种汽车铝件成型设备
CN110405417B (zh) * 2019-07-16 2020-10-16 东莞市金瑞五金股份有限公司 一种适用于电阻焊成型的储液器盖体制造方法
CN114102159A (zh) * 2021-11-29 2022-03-01 天津航天长征火箭制造有限公司 球冠底瓜瓣与闭环法兰的铣焊一体装置及焊接方法
CN115890163B (zh) * 2022-12-26 2024-04-30 江西洪都航空工业集团有限责任公司 一种大曲率全型面进气道壁板制造工艺

Citations (10)

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Publication number Priority date Publication date Assignee Title
EP0336751A2 (fr) * 1988-04-08 1989-10-11 Siddons Ramset Limited Chauffe-eau
CN1170857A (zh) * 1996-07-15 1998-01-21 陈奇能 电热水器内胆的制造方法
CN1206096A (zh) * 1996-12-30 1999-01-27 温州市立峰电器有限公司 搪瓷水箱电热水器及其制造方法
JP2002048402A (ja) * 2000-08-01 2002-02-15 Sekisui Chem Co Ltd ハイブリッド型電気温水器の運転方法
CN2500968Y (zh) * 2001-09-27 2002-07-17 黄永年 热水器水箱内胆
US20030230300A1 (en) * 2002-06-13 2003-12-18 Chin-Kuang Luo Solar energy collecting device with a thermal conductor, and water heating apparatus using the solar energy collecting device
CN2843827Y (zh) * 2005-11-04 2006-12-06 江苏金方圆数控机床有限公司 用于数控转塔冲床的翻边复合模具
CN101210738A (zh) * 2006-12-28 2008-07-02 海尔集团公司 一种热水器搪瓷内胆及其制造方法
CN101354194A (zh) * 2008-09-11 2009-01-28 艾欧史密斯(中国)热水器有限公司 承压式太阳能热水器
CN101837544A (zh) * 2009-12-08 2010-09-22 艾欧史密斯(中国)热水器有限公司 热水器底盖换热总成制造工艺方法及专用工装

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FR2903157B1 (fr) * 2006-06-29 2009-10-30 Bioprofile Sa Assemblage d'une piece en pyrocarbone et d'une autre piece

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336751A2 (fr) * 1988-04-08 1989-10-11 Siddons Ramset Limited Chauffe-eau
CN1170857A (zh) * 1996-07-15 1998-01-21 陈奇能 电热水器内胆的制造方法
CN1206096A (zh) * 1996-12-30 1999-01-27 温州市立峰电器有限公司 搪瓷水箱电热水器及其制造方法
JP2002048402A (ja) * 2000-08-01 2002-02-15 Sekisui Chem Co Ltd ハイブリッド型電気温水器の運転方法
CN2500968Y (zh) * 2001-09-27 2002-07-17 黄永年 热水器水箱内胆
US20030230300A1 (en) * 2002-06-13 2003-12-18 Chin-Kuang Luo Solar energy collecting device with a thermal conductor, and water heating apparatus using the solar energy collecting device
CN2843827Y (zh) * 2005-11-04 2006-12-06 江苏金方圆数控机床有限公司 用于数控转塔冲床的翻边复合模具
CN101210738A (zh) * 2006-12-28 2008-07-02 海尔集团公司 一种热水器搪瓷内胆及其制造方法
CN101354194A (zh) * 2008-09-11 2009-01-28 艾欧史密斯(中国)热水器有限公司 承压式太阳能热水器
CN101837544A (zh) * 2009-12-08 2010-09-22 艾欧史密斯(中国)热水器有限公司 热水器底盖换热总成制造工艺方法及专用工装

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CN101837544A (zh) 2010-09-22
CN101837544B (zh) 2011-08-17
US20120240402A1 (en) 2012-09-27

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