CN202304118U - 一种降膜式蒸发器 - Google Patents

一种降膜式蒸发器 Download PDF

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Publication number
CN202304118U
CN202304118U CN2011202881903U CN201120288190U CN202304118U CN 202304118 U CN202304118 U CN 202304118U CN 2011202881903 U CN2011202881903 U CN 2011202881903U CN 201120288190 U CN201120288190 U CN 201120288190U CN 202304118 U CN202304118 U CN 202304118U
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China
Prior art keywords
tube bank
film evaporator
dividing plate
housing
liquid refrigerant
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Expired - Lifetime
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CN2011202881903U
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English (en)
Inventor
杨忠源
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Shanghai Comer Machinery Co.,Ltd.
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SHANGHAI FUTIAN AIR CONDITIONING EQUIPMENT CO Ltd
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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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • 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
    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/04—Distributing arrangements
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

本实用新型涉及一种降膜式蒸发器，该蒸发器包括壳体及管束，所述的管束水平设置在壳体内，所述的壳体上方设有液态制冷剂入口和气态制冷剂出口，壳体下方设有液态制冷剂出口在管束中部设有隔板，将管束分为上下两层，上层的管束的上部还设置有隔板，所述的隔板上布设有通孔。与现有技术相比，本实用新型的换热效率得到大大提高。

Description

一种降膜式蒸发器
技术领域
本实用新型涉及一种制冷系统中的蒸发器，尤其是涉及一种降膜式蒸发器。 
背景技术
用于压缩制冷的降膜式蒸发器是将制冷剂自降膜式蒸发器壳体上部加入，经液体分布及成膜装置，均匀分配到各换热管外部，在重力作用下，成均匀膜状自上而下流动。流动过程中，吸收换热管内部流动介质(水)的热量而被汽化，从而完成液态冷媒蒸发为气态冷媒的蒸发过程， 
例如：申请号为00817205.6的中国专利公开了一种“用于蒸汽压缩制冷器的降膜式蒸发器”，该蒸发器具有一壳体、一管束、一蒸汽出口以及一制冷剂分配器，所述蒸汽出口与所述压缩机相连使蒸汽流向所述压缩机，而所述管束的管子水平地铺设在所述壳体内，所述制冷剂分配器设置在所诉壳体内所述管束的上方，并且可接受来自所述膨胀装置的液态制冷剂，在基本无压力帮助的情况下，所述分配器使液态制冷剂垂直向下沉积到所述管束的顶部，所述管束形成至少一个蒸汽通道，所述蒸汽通道为一种基本无阻碍的流动路径，该路径有利于将制冷气体从所述管束的内部导向其外侧。该降膜式蒸发器存在以下缺点：当来自膨胀装置的液态制冷剂自上而下流过管束时，液态制冷剂常会凝结在上层的管束上，造成通道堵塞，致使液态制冷剂不能与下层的管束充分接触，从而使蒸发效率大大降低。 
实用新型内容
本实用新型的目的就是为了克服上述现有技术存在的缺陷而提供一种工作效率大大提高的降膜式蒸发器。 
本实用新型的目的可以通过以下技术方案来实现：一种降膜式蒸发器，该蒸发器包括壳体及管束，所述的管束水平设置在壳体内，所述的壳体上方设有液态制冷剂入口和气态制冷剂出口，壳体下方设有液态制冷剂出口，其特征在于，在管束中部设有隔板，将管束分为上下两层，上层的管束的上部还设置有隔板，所述的隔板 上布设有通孔。 
所述的隔板四周围设有侧板。 
上层的管束分为两部分，两部分管束之间形成气道。 
与现有技术相比，本实用新型由于在管束上部及中部设置有的隔板，其可对制冷剂进行二次分配，使制冷剂充分与管束接触，从而大大提高蒸发器的换热效率。 
附图说明
图1为降膜式蒸发器的截面结构示意图； 
图2为隔板的结构示意图。 
具体实施方式
下面结合附图和具体实施例对本实用新型进行详细说明。 
实施例 
如图1、图2所示，一种降膜式蒸发器，该蒸发器包括壳体1及管束2。管束2水平设置在壳体1内。壳体1上方设有液态制冷剂入口和气态制冷剂出口，壳体下方设有液态制冷剂出口。在管束的中部设有隔板3，将管束分为上下两层，上层的管束的上部还设置有隔板3。隔板3上布设有通孔31，且隔板3四周围设有侧板32。上层的管束分为两部分，两部分管束之间形成气道4。 
使用时，制冷剂如冷媒从气态制冷剂入口进入壳体，由于在管束上部设有隔板，从而可使制冷剂分散开来，均匀洒落在管束上。被蒸发的制冷剂从气态制冷剂出口流出，未被蒸发的制冷剂在重力的作用下沿上层管束下落，到达设在管束中部的隔板时，在隔板的作用下对制冷剂进行二次分配，使制冷剂再一次分散开来，让其与下层管束充分接触，从而大大提高蒸发器的换热效率。最后未被蒸发的制冷剂从液态制冷剂出口流出。 

Claims (3)

1.一种降膜式蒸发器，该蒸发器包括壳体及管束，所述的管束水平设置在壳体内，所述的壳体上方设有液态制冷剂入口和气态制冷剂出口，壳体下方设有液态制冷剂出口，其特征在于，在管束中部设有隔板，将管束分为上下两层，上层的管束的上部还设置有隔板，所述的隔板上布设有通孔。
2.根据权利要求1所述的一种降膜式蒸发器，其特征在于，所述的隔板四周围设有侧板。
3.根据权利要求1所述的一种降膜式蒸发器，其特征在于，上层的管束分为两部分，两部分管束之间形成气道。 
CN2011202881903U 2011-08-09 2011-08-09 一种降膜式蒸发器 Expired - Lifetime CN202304118U (zh)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102914097A (zh) * 2012-11-05 2013-02-06 重庆美的通用制冷设备有限公司 全降膜式蒸发器及冷水机组
WO2014032301A1 (en) * 2012-09-03 2014-03-06 Trane International Inc. Methods and systems to manage refrigerant in a heat exchanger
EP2754986A1 (en) * 2011-09-09 2014-07-16 Modec Inc. Falling liquid film heat exchanger, absorption refrigeration system, ship, offshore structure, and underwater structure
CN104819605A (zh) * 2015-05-05 2015-08-05 昆山方佳机械制造有限公司 一种满液式蒸发器
CN108827027A (zh) * 2018-06-27 2018-11-16 珠海格力电器股份有限公司 管式换热器及降膜式蒸发器
CN109269158A (zh) * 2018-11-28 2019-01-25 珠海格力电器股份有限公司 降膜式蒸发器和空调系统

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2754986A1 (en) * 2011-09-09 2014-07-16 Modec Inc. Falling liquid film heat exchanger, absorption refrigeration system, ship, offshore structure, and underwater structure
EP2754986A4 (en) * 2011-09-09 2015-04-22 Modec Inc CASE FLUID HEAT EXCHANGERS, ABSORPTION COOLING SYSTEM, SHIP, OFFSHORE STRUCTURE, AND UNDERWATER STRUCTURE
US10222127B2 (en) 2011-09-09 2019-03-05 Modec, Inc. Falling film heat exchanger, absorption refrigerator system, ship, offshore structure and underwater offshore structure
WO2014032301A1 (en) * 2012-09-03 2014-03-06 Trane International Inc. Methods and systems to manage refrigerant in a heat exchanger
CN104781622A (zh) * 2012-09-03 2015-07-15 特灵国际有限公司 管理换热器中制冷剂的方法和系统
CN104781622B (zh) * 2012-09-03 2019-10-15 特灵国际有限公司 管理换热器中制冷剂的方法和系统
US10571168B2 (en) 2012-09-03 2020-02-25 Trane International Inc. Methods and systems to manage refrigerant in a heat exchanger
CN102914097A (zh) * 2012-11-05 2013-02-06 重庆美的通用制冷设备有限公司 全降膜式蒸发器及冷水机组
CN104819605A (zh) * 2015-05-05 2015-08-05 昆山方佳机械制造有限公司 一种满液式蒸发器
CN108827027A (zh) * 2018-06-27 2018-11-16 珠海格力电器股份有限公司 管式换热器及降膜式蒸发器
CN108827027B (zh) * 2018-06-27 2019-06-25 珠海格力电器股份有限公司 管式换热器及降膜式蒸发器
CN109269158A (zh) * 2018-11-28 2019-01-25 珠海格力电器股份有限公司 降膜式蒸发器和空调系统

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GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170208

Address after: Jian Gong Lu, Jinshan District City, Shanghai Fengjing town 201501 No. 108 No. 4 Building (building 10) C

Patentee after: Shanghai Comer Machinery Co.,Ltd.

Address before: 201108 Minhang District light road, No. 488, Shanghai

Patentee before: Shanghai Futian Air Conditioning Equipment Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20120704

CX01 Expiry of patent term