WO2019006886A1 - 一种新型蒸发器 - Google Patents

一种新型蒸发器 Download PDF

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Publication number
WO2019006886A1
WO2019006886A1 PCT/CN2017/102617 CN2017102617W WO2019006886A1 WO 2019006886 A1 WO2019006886 A1 WO 2019006886A1 CN 2017102617 W CN2017102617 W CN 2017102617W WO 2019006886 A1 WO2019006886 A1 WO 2019006886A1
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Prior art keywords
evaporator
heat exchange
layer
net
protective layer
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PCT/CN2017/102617
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English (en)
French (fr)
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李桂荣
羌飞
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南通远征冷冻设备有限公司
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Publication of WO2019006886A1 publication Critical patent/WO2019006886A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00Details of evaporators; Details of condensers
    • F25B2339/02Details of evaporators

Definitions

  • the invention relates to the technical field of evaporators, in particular to a novel evaporator.
  • the evaporator is a very important component in the four major parts of refrigeration.
  • the low-temperature condensing "liquid" body passes through the evaporator to exchange heat with the outside air, and the "gas” heats up to achieve the cooling effect.
  • the evaporator is mainly composed of a heating chamber and an evaporation chamber.
  • the heating chamber supplies the liquid with the heat required for evaporation, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas-liquid two phases.
  • the vapor generated in the heating chamber is filled with a large amount of liquid foam, and after reaching the evaporation chamber of a large space, the liquid is separated from the vapor by the action of its own coagulation or demister.
  • demister is placed on top of the evaporation chamber.
  • the evaporator is divided into three types according to the operating pressure: atmospheric pressure, pressure and decompression. According to the movement of the solution in the evaporator, there are: 1 cycle type.
  • the boiling solution passes through the heating surface multiple times in the heating chamber, such as a central circulation tube type, a hanging basket type, an external heating type, a column type, and a forced circulation type. 2 one-way type.
  • the boiling solution passes through the heating surface once in the heating chamber, and does not circulate, that is, discharges the concentrated liquid, such as a rising film type, a falling film type, a stirring film type, and a centrifugal film type.
  • 3 direct contact type The heating medium is in direct contact with the solution for heat transfer, such as a submerged combustion evaporator.
  • the evaporation device consumes a large amount of heating steam during operation.
  • a multi-effect evaporation device and a steam recompression evaporator can be used.
  • Evaporators are widely used in chemical, light industry and other sectors.
  • the existing evaporator has a complicated structure, high input cost, poor evaporation efficiency, and reduced work efficiency.
  • a new type of evaporator includes an evaporator body, an air inlet is disposed on one side of the evaporator body, and an air outlet is disposed on the other side, and the upper end surface and the lower side of the evaporator body The end face is fixedly mounted with a heat dissipation net, and the evaporator body is provided with multiple replacements
  • the heat pipe is adjacent to the two heat exchange tubes.
  • the heat exchange tube comprises a duct body, a heat exchange layer, a heat dissipation layer and a protective layer
  • the surface of the duct body is provided with a protective layer
  • a spiral groove is arranged on the protective layer
  • the protective layer comprises a heat exchange layer
  • the heat dissipation layer, the protective layer and the heat exchange layer and the heat dissipation layer are integrally formed on the surface of the conduit body, and the protection layer includes a heat conduction hole.
  • a plurality of ribs are uniformly disposed on the inner wall of the catheter, and the plurality of ribs are staggered along the axial direction of the catheter body.
  • the heat dissipation net comprises a mesh body and a carbon fiber adsorption net, the carbon fiber adsorption net is disposed on both sides of the net body, and the carbon fiber adsorption net has a wave-shaped structure.
  • the utility model has novel structure design and good evaporation effect, and the heat exchange tubes arranged in a staggered manner in the body cavity of the evaporator can increase the contact area with the gas, can effectively improve the heat transfer efficiency of the heat exchange tubes, and further improve the evaporation. effectiveness.
  • the heat dissipating net used in the invention has good heat dissipation effect, and a carbon fiber adsorption net is disposed on both sides of the net body, and the carbon fiber adsorption net has a wave-shaped structure. With this structure, the dust can be adsorbed while dissipating heat, and the dust is prevented from entering the evaporation. The inside of the body affects the evaporation effect.
  • Figure 1 is a schematic view of the overall structure of the present invention
  • FIG. 2 is a schematic structural view of a heat exchange tube of the present invention
  • Figure 3 is a cross-sectional view of the heat exchange tube of the present invention.
  • FIG. 4 is a schematic structural view of a heat dissipation network of the present invention.
  • the present invention provides a technical solution: a new type of evaporator, including an evaporator body 1, the evaporator body 1 is provided with an air inlet 2 on one side, and a tuyere 3 is disposed on the other side.
  • the upper end surface and the lower end surface of the evaporator body 1 are fixedly mounted with a heat dissipation net 4, and a plurality of heat exchange tubes 5 are disposed in the inner cavity of the evaporator body 1, and two adjacent heat exchange tubes 5 are alternately arranged one above another.
  • the heat exchange tube 5 includes a duct body 6, a heat exchange layer 7, a heat dissipation layer 8, and a protective layer 9.
  • the surface of the duct body 6 is provided with a protective layer 9 on which a spiral groove 10 is disposed.
  • the protective layer 9 includes a heat exchange layer 7 and a heat dissipation layer 8, and the protective layer 9 is integrally formed with the heat exchange layer 7 and the heat dissipation layer 8 on the surface of the catheter body 6, and the protective layer 9 contains a thermal conductive hole; A plurality of ribs 12 are evenly disposed on the inner wall of the catheter body 6.
  • a plurality of the ribs 12 are arranged in the axial direction of the catheter body 6; the arrangement of the ribs enables the fluid to continuously change during the traveling process. Strengthen the turbulence effect, increase the mixing degree of the fluid, and further improve the heat exchange efficiency.
  • the utility model has novel structure design and good evaporation effect, and the inner cavity of the evaporator body adopts a staggered heat exchange tube, which can increase the contact area with the gas, can effectively improve the heat transfer efficiency of the heat exchange tube, and further improve the evaporation efficiency.
  • the heat dissipating net 4 includes a net body 13 and a carbon fiber adsorbing net 11 which are disposed on both sides of the net body 13, and the carbon fiber adsorbing net 11 has a wave-like structure.
  • the heat dissipating net adopted by the invention has good heat dissipation effect, and a carbon fiber adsorption net is disposed on both sides of the net body, and the carbon fiber adsorption net has a wave-shaped structure, and the structure can absorb dust while preventing heat from entering the inside of the evaporator body. Affects the evaporation effect.

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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)

Abstract

蒸发器,包括蒸发器本体(1),蒸发器本体(1)一侧设置进风口(2),另一侧设置出风口(3),蒸发器本体(1)上端面和下端面均固定安装散热网(4),蒸发器本体(1)内腔设置多根换热管(5),相邻两根换热管(5)上下交错设置,该蒸发器能够有效提高换热管的传热效率,进一步提高蒸发效率。

Description

一种新型蒸发器 技术领域
本发明涉及蒸发器技术领域,具体为一种新型蒸发器。
背景技术
蒸发器是制冷四大件中很重要的一个部件,低温的冷凝"液"体通过蒸发器,与外界的空气进行热交换,"气"化吸热,达到制冷的效果。蒸发器主要由加热室和蒸发室两部分组成。加热室向液体提供蒸发所需要的热量,促使液体沸腾汽化;蒸发室使气液两相完全分离。加热室中产生的蒸气带有大量液沫,到了较大空间的蒸发室后,这些液体借自身凝聚或除沫器等的作用得以与蒸气分离。通常除沫器设在蒸发室的顶部。
蒸发器按操作压力分常压、加压和减压3种。按溶液在蒸发器中的运动状况分有:①循环型。沸腾溶液在加热室中多次通过加热表面,如中央循环管式、悬筐式、外热式、列文式和强制循环式等。②单程型。沸腾溶液在加热室中一次通过加热表面,不作循环流动,即行排出浓缩液,如升膜式、降膜式、搅拌薄膜式和离心薄膜式等。③直接接触型。加热介质与溶液直接接触传热,如浸没燃烧式蒸发器。蒸发装置在操作过程中,要消耗大量加热蒸汽,为节省加热蒸汽,可采用多效蒸发装置和蒸汽再压缩蒸发器。蒸发器广泛用于化工、轻工等部门。
现有蒸发机结构复杂,投入成本高,蒸发效率差,降低了工作效率。
发明内容
本发明的目的在于提供一种新型蒸发器,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:一种新型蒸发器,包括蒸发器本体,所述蒸发器本体一侧设置进风口,另一侧设置出风口,所述蒸发器本体上端面和下端面均固定安装散热网,所述蒸发器本体内腔设置多根换 热管,相邻两根换热管上下交错设置。
优选的,所述换热管包括导管体、换热层、散热层和保护层,所述导管体表面设有设置保护层,保护层上设置螺旋凹槽,所述保护层包括有换热层和散热层,所述保护层与换热层、散热层一体成型于导管体的表面,所述保护层含有热导孔。
优选的,所述导管体内壁上均匀设置多个肋片,多个所述肋片沿所述导管体轴向错列设置。
优选的,所述散热网包括网体和碳纤维吸附网,所述碳纤维吸附网设置在网体两侧,所述碳纤维吸附网呈波浪形结构。
与现有技术相比,本发明的有益效果是:
(1)本实用新型结构设计新颖,蒸发效果好,蒸发器本体内腔采用交错设置的换热管,能够增加与气体的接触面积,能够有效提高换热管的传热效率,进一步提高了蒸发效率。
(2)本发明采用的散热网,散热效果好,在在网体两侧设置碳纤维吸附网,且碳纤维吸附网呈波浪形结构,采用此结构,能够在散热的同时吸附灰尘,防止灰尘进入蒸发器本体内部影响蒸发效果。
附图说明
图1为本发明整体结构示意图;
图2为本发明换热管结构示意图;
图3为本发明换热管剖视图;
图4为本发明散热网结构示意图。
具体实施方式
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员 在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
请参阅图1-4,本发明提供一种技术方案:一种新型蒸发器,包括蒸发器本体1,所述蒸发器本体1一侧设置进风口2,另一侧设置出风口3,所述蒸发器本体1上端面和下端面均固定安装散热网4,所述蒸发器本体1内腔设置多根换热管5,相邻两根换热管5上下交错设置。
本发明中,所述换热管5包括导管体6、换热层7、散热层8和保护层9,所述导管体6表面设有设置保护层9,保护层9上设置螺旋凹槽10,所述保护层9包括有换热层7和散热层8,所述保护层9与换热层7、散热层8一体成型于导管体6的表面,所述保护层9含有热导孔;导管体6内壁上均匀设置多个肋片12,多个所述肋片12沿所述导管体6轴向错列设置;肋片的排布结构能够使得流体在行进过程中不停变向,加强湍动效果,提高流体的混合程度,进而提高热交换效率。本实用新型结构设计新颖,蒸发效果好,蒸发器本体内腔采用交错设置的换热管,能够增加与气体的接触面积,能够有效提高换热管的传热效率,进一步提高了蒸发效率。
本发明中,散热网4包括网体13和碳纤维吸附网11,所述碳纤维吸附网11设置在网体13两侧,所述碳纤维吸附网11呈波浪形结构。本发明采用的散热网,散热效果好,在在网体两侧设置碳纤维吸附网,且碳纤维吸附网呈波浪形结构,采用此结构,能够在散热的同时吸附灰尘,防止灰尘进入蒸发器本体内部影响蒸发效果。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。

Claims (4)

  1. 一种新型蒸发器,包括蒸发器本体(1),其特征在于:所述蒸发器本体(1)一侧设置进风口(2),另一侧设置出风口(3),所述蒸发器本体(1)上端面和下端面均固定安装散热网(4),所述蒸发器本体(1)内腔设置多根换热管(5),相邻两根换热管(5)上下交错设置。
  2. 根据权利要求1所述的一种新型蒸发器,其特征在于:所述换热管(5)包括导管体(6)、换热层(7)、散热层(8)和保护层(9),所述导管体(6)表面设有设置保护层(9),保护层(9)上设置螺旋凹槽(10),所述保护层(9)包括有换热层(7)和散热层(8),所述保护层(9)与换热层(7)、散热层(8)一体成型于导管体(6)的表面,所述保护层(9)含有热导孔。
  3. 根据权利要求2所述的一种新型蒸发器,其特征在于:所述导管体(6)内壁上均匀设置多个肋片(12),多个所述肋片(12)沿所述导管体(6)轴向错列设置。
  4. 根据权利要求1所述的一种新型蒸发器,其特征在于:所述散热网(4)包括网体(13)和碳纤维吸附网(11),所述碳纤维吸附网(11)设置在网体(13)两侧,所述碳纤维吸附网(11)呈波浪形结构。
PCT/CN2017/102617 2017-07-05 2017-09-21 一种新型蒸发器 WO2019006886A1 (zh)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107152815A (zh) * 2017-07-05 2017-09-12 南通远征冷冻设备有限公司 一种新型蒸发器
CN108759180B (zh) * 2018-06-27 2023-11-21 南京师范大学 一种水平管降膜蒸发器用换热器

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US5085270A (en) * 1990-12-21 1992-02-04 Abb Air Preheater, Inc. Dual angle heat pipe air preheater
JPH06176901A (ja) * 1992-12-09 1994-06-24 Hitachi Cable Ltd 電気抵抗器
CN201563310U (zh) * 2009-11-27 2010-08-25 上海威特力热管散热器有限公司 一种插入热管换热器的壁挂式隔爆箱
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