CN1177089A - 冰箱蒸发器 - Google Patents

冰箱蒸发器 Download PDF

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CN1177089A
CN1177089A CN97110586A CN97110586A CN1177089A CN 1177089 A CN1177089 A CN 1177089A CN 97110586 A CN97110586 A CN 97110586A CN 97110586 A CN97110586 A CN 97110586A CN 1177089 A CN1177089 A CN 1177089A
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heat
refrigerator
evaporator
exchanging piece
cold air
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CN97110586A
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CN1122800C (zh
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申晙澈
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WiniaDaewoo Co Ltd
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Daewoo Electronics Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/006—Tubular elements; Assemblies of tubular elements with variable shape, e.g. with modified tube ends, with different geometrical features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/51—Heat exchange having heat exchange surface treatment, adjunct or enhancement
    • Y10S165/518—Conduit with discrete fin structure
    • Y10S165/524—Longitudinally extending
    • Y10S165/525—Helical

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

一个安装在冷空气通道中的冰箱蒸发器,包括一个蛇形的热交换管和一个环绕在该管上的热交换件。热交换件呈有两上纵向边缘的带状。该热交换件的一条纵向边缘与热交换管的周面接触,另一条纵向自由边缘有许多切口部分。热交换管的每个直线部分的相应轴线相互平行并且沿着空气流方向。

Description

冰箱蒸发器
本发明涉及一种冰箱蒸发器。更具体地说，本发明涉及一种具有一个呈螺旋状盘绕在一个热交换管周围的热交换件的蒸发器。
图5示出了一种具有一个已有的蒸发器的冰箱。该冰箱包括由一个隔离壁3分开的一个冷冻室1和一个冷藏室2。在冷冻室1的后壁上配置有用于接收通过隔离壁3进入室1，2中循环的冷空气的冷空气通道7，在冷空气通道7中，安装有一个用于和经过通道7导入的空气流进热交换的蒸发器4。风扇5安装在蒸发器4上方。即风扇5安装在冷空气流动的下游方向。此外，在蒸发器4下面，有一个用于压缩流过蒸发器4的致冷剂的压缩机6。
图6显示一种已有的蒸发器4。该蒸发器4包括：一个蛇形的致冷管4a；一对安装在4a两端的托架4b，这对托架用于使管4a的直线部分4h之间保持一个预定的间隔；以及在管4a的外周面上成形的许多热交换翅片4c。这些热交换翅片4c沿冷空气流C的方向配置。配置在蒸发器4上部(由箭头C的方向指示的空气流的下游方向)的热交换翅片之间的间距4cu比配置在蒸发器4下部(由箭头C方向指示的空气流的上游方向)的热交换翅片之间的间距4cd大。换句话说，热交换翅片的间距沿着箭头C指示的空气流方向从蒸发器的顶部到底部越来越窄。
在冰箱中，通过压缩机6达到高温和高压的致冷剂馈入一个冷凝器(未示出)然后通过一毛细管(未示出)，这样，高温高压的致冷剂重新变为低温致冷剂，接着流进蒸发器4。致冷剂通过致冷管4a并循环回到压缩机6。
当冷空气在冷冻室1循环时，该空气流温度上升，这个具有高温度的空气流通过隔离壁3流进通道7。同样，在冷藏室2中循环的空气通过隔离壁3流进通道7。在室1、2中完成循环后的温度比较高的空气流，沿着箭头C指示的空气流方向流到蒸发器4，通过蒸发器4后的低温空气由风扇5分别吹入室1，2。
可是，由于沿着上述路线流动的空气通过与空气流动方向平行配置的热交换翅片4c之间的空隙，所以冷空气的流动受到限制。即，流过最下部管4ab的空气流被安装在管4ab上的特定的翅片4cd引导并且向上输送到安装在邻近的上方的管4ac上的相应特定的翅片4cb。
这样，因为有特定温度的空气流通过特定的区域，所以蒸发器4的管4a的热交换受到限制。这样就产生一个问题-蒸发器整个表面上进行的热交换不均匀。
本发明的目的是提供一种可以解决这个问题的冰箱蒸发器。
本发明的另一目的是提供一种冰箱蒸发器，该蒸发器使通过的空气流变为湍流，以便使与蒸发器的热交换均匀，从而提高冰箱的效率。
为了达到本发明的上述目的，所述的蒸发器包括：一个蛇形的装有致冷剂的热交换管，该管的每个直线部分的相应的轴线大致相互平行，并且通常沿着流过冷空气通道的空气流方向；和一个成螺旋状环绕在热交换管周面的热交换件。
另外，热交换件呈带状。
此外，该带状的热交换件是倾斜的，其一条纵向的边缘与热交换管周面相接触。
并且，另一条不与热交换件接触的纵向边缘部分朝向冷空气流的下游部分。
该另一条不与热交换件接触的纵向边缘与冷空气流动方向垂直。
热交换件的那个另一条纵向自由边缘有许多切口。
图1是本发明的蒸发器正视图；
图2是图1的一个局部透视图；
图3是本发明的上面环绕有一个热交换件的一个热交换管的局部透视图；
图4是图3沿4-4线剖切的剖面图；
图5是现有技术中的冰箱垂直剖面图；
图6是图5中蒸发器的一个正视图；
下面参照附图1-4详细描述本发明的冰箱蒸发器。
凡是本发明优选实施例中的与图5和6中的现有技术中的实施例相应的部件都标以相同的数字代号，以便略去对其详细描述。
在图1中，蒸发器40包括：一个蛇形的热交换管10，一对固定在管10的两端以便使管10的直线部分10h之间保持预定间距的固定支架11T、11L，和一个形成在管10的外周面上的热交换件20。热交换件10的直线部分10h沿着箭头C指示的冷空气流动方向排列。
图2示出位于管10上端的一个上部支架11T。上部支架11T有许多用于防止对通过冷空气通道7的沿箭头C方向流动的冷空气流有阻碍的开口11h。
图3和图4示出了沿管10的外周面配置的热交换件20。热交换件20呈带状，以螺旋形配置在该管的周面上。热交换件20有一个较低部分20L和一个较高部分20H，其中，较低部分20L用固定手段(例如铜焊)与管10的周面接触，而上面部分20H是不与管10的周面接触即离开管10的周面。上面部分20H有许多翅片21。翅片21的扁平面21F倾斜地安装在管20的周面上。即每个翅片21的自由端21E都朝向箭头C指示的空气流动的下游方向。在另一方面，翅片21的自由端21E沿着由箭头C指示的空气流动的同一方向横向安装(如图4所示)。
在具有上述蒸发器的冰箱中，被压缩机6压缩的致冷剂，在通过冷凝器和毛细管(两者在图中未示出)后变成低温低压状态。致冷剂流进蒸发器40的管10，同时，环绕冷藏室和冷冻室循环的冷空气随风扇5的旋转送入通道7。进来的空气接触到内部有致冷剂循环的管10，所以空气的温度下降。冷空气吹进冷冻室1和冷藏室2。
通道7中的冷空气沿箭头C指示的空气流动方向向上流到蒸发器40。通过蒸发器40下部支架11L的空气，由于支架11L上有许多开口11h而不受阻碍。通过下部支架11L的空气沿管10的平行部分10h继续朝上部支架11T上升。上升空气流由于螺旋状盘绕在管10的周面10c上的热交换件20而变成湍流。接着，该湍流空气的扩散速度被辐射状安装在管10周面上的热交换件20上的翅片21加速。
因此，沿着特定管的平行部分上升的空气分别在热交换件20的翅片21的促进下，向位于特定管两边的每个管10的平行部分10h进一步扩散移动。所以，空气与蒸发器40的整根管10进行热交换，然后流向上部支架11T。上部支架11T也有许多不会防碍空气流动的开口11h。
按照本发明的蒸发器，因为致冷管的平行部分与空气流动方向平行排列，所以空气不会被管子干扰，因此促进了空气的湍流形成。此外，因为空气沿致冷管的平行部分前进，所以使空气与管子之间的接触面积增加，从而提高了热交换效率。并且，环绕热交换件配置许多翅片，从而防止了由于特定的冷空气在特定部分内流动而对热交换引起的限制。因此可以使热交换在整个蒸发器表面上均匀地进行，从而提高了热交换效率。

Claims (6)

1.一种安装在冷空气通道上用于和在冷藏室和冷冻室中循环的冷空气进行热交换的冰箱蒸发器，包括：
一个蛇形的装有致冷剂的热交换管，该管的每个直线部分的相应的轴线都大致相互平行并且大致沿着流过所述的冷空气通道的空气流方向；
一个成螺旋状配置在所述的热交换管周面上的热交换件。
2.如权利要求1所述的冰箱蒸发器，其特征在于所述的热交换件呈带状，该带有两个纵向边缘部分。
3.如权利要求2所述的冰箱蒸发器，其特征在于所述的带状热交换件的一个纵向边缘部分是与所述的热交换管的周面相接触。
4.如权利要求3所述的冰箱蒸发器，其特征在于，不与所述热交换件接触的另一个纵向边缘部分向冷空气流的上游方向倾斜。
5.如权利要求3所述的冰箱蒸发器，其特征在于，不与所述的热交换件接触的另一个纵向边缘部分与冷空气流方向垂直。
6.如权利要求3所述的冰箱蒸发器，其特征在于，不与所述的热交换件接触的另一个纵向部分有许多用于使空气流由层流变成湍流的切口。
CN97110586A 1996-06-04 1997-04-21 冰箱蒸发器 Expired - Fee Related CN1122800C (zh)

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KR1019960019757A KR980003337A (ko) 1996-06-04 1996-06-04 냉장고의 증발장치
KR19757/1996 1996-06-04
KR19757/96 1996-06-04

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CN1122800C CN1122800C (zh) 2003-10-01

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KR (1) KR980003337A (zh)
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IN (1) IN192225B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387758A (zh) * 2015-12-24 2016-03-09 东南大学 一种带螺旋薄肋片的立式冷凝管
CN114006081A (zh) * 2021-10-29 2022-02-01 珠海冠宇电池股份有限公司 电池及电池系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6378605B1 (en) 1999-12-02 2002-04-30 Midwest Research Institute Heat exchanger with transpired, highly porous fins
DE10107653A1 (de) * 2001-02-19 2002-08-29 Bsh Bosch Siemens Hausgeraete Haushaltskältegerät und Verflüssigerrohr dafür
CN102037295A (zh) * 2008-05-23 2011-04-27 伊莱克斯公司 制冷装置
WO2015048013A1 (en) * 2013-09-24 2015-04-02 Zoneflow Reactor Technologies, LLC Heat exchanger
DE102019007409B4 (de) * 2019-10-24 2022-06-23 Dräger Safety AG & Co. KGaA Kühlelementensystem zur Verwendung innerhalb einer Kühlvorrichtung eines Kreislaufatemschutzgeräts

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Publication number Priority date Publication date Assignee Title
US3046758A (en) * 1960-08-11 1962-07-31 Olin Mathieson Heat exchangers
US4269035A (en) * 1979-11-19 1981-05-26 General Electric Company Defrost control
US4589481A (en) * 1982-06-29 1986-05-20 Ab Zander & Ingestrom Tube heat exchanger
US5255535A (en) * 1991-12-26 1993-10-26 General Electric Company Refrigerator with spine fin evaporator
US5193359A (en) * 1992-01-08 1993-03-16 General Electric Company Spine fin refrigerator evaporator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105387758A (zh) * 2015-12-24 2016-03-09 东南大学 一种带螺旋薄肋片的立式冷凝管
CN114006081A (zh) * 2021-10-29 2022-02-01 珠海冠宇电池股份有限公司 电池及电池系统

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CN1122800C (zh) 2003-10-01
US5784897A (en) 1998-07-28
IN192225B (zh) 2004-03-20
KR980003337A (ko) 1998-03-30

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