CN202109705U - 一种满液式蒸发器的均气板 - Google Patents

一种满液式蒸发器的均气板 Download PDF

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CN202109705U
CN202109705U CN2011201660299U CN201120166029U CN202109705U CN 202109705 U CN202109705 U CN 202109705U CN 2011201660299 U CN2011201660299 U CN 2011201660299U CN 201120166029 U CN201120166029 U CN 201120166029U CN 202109705 U CN202109705 U CN 202109705U
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uniform gas
gas
gas plate
oil return
evaporator
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Expired - Lifetime
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CN2011201660299U
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蔡永生
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Mcquay Air Conditioning and Refrigeration Wuhan Co Ltd
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Mcquay Air Conditioning and Refrigeration Wuhan Co Ltd
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    • 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
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0071—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/02—Safety or protection arrangements; Arrangements for preventing malfunction in the form of screens or covers

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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)

Abstract

本实用新型涉及一种蒸发器的部件，具体地说是一种满液式蒸发器的均气板。它包括均气板(3)、均气板(3)上开有均气小孔(4)，均气板(3)的横向两侧顶端固定有均气挡板(1)，其特征是：均气板(3)的纵向两侧的边缘开有长方形第三级均气孔(5)，均气板(3)的横向两侧开有第二级均气孔(2)，第二级均气孔(2)和均气小孔(4)交错排列。本实用新型有益效果如下：①提高蒸发器在负荷变化时回油的能力；②减少润滑油对蒸发器换热效率的影响。③与引射回油、热交换回油相比节能性好，制冷系统能效比高，回油效率高。

Description

一种满液式蒸发器的均气板
技术领域
本实用新型涉及一种蒸发器的部件，具体地说是一种满液式蒸发器的均气板。 
背景技术
在中高温制冷领域，满液式蒸发器有着传热效率高，换热稳定和部分负荷效率高等优点。但同时，其容易聚集润滑油，积油后回油问题的处理较困难。一般满液式蒸发器的回油多采用引射回油、热交换蒸发和速度回油。其中最简单易行的是速度回油，其方法是在满液式蒸发器中设置均气板，均气板上开有数个小孔，通过蒸发器的气体在均气小孔和均气板组件中的凹槽内高速流动，携带油滴至压缩机实现回油。但由于蒸发器的负荷变化，气体的流速也随之改变，对于结构已定型的均气板将无法满足回油所需的气体流速。基于上述原因，发明一种在全负荷和部分负荷条件下，能自动调节回油速度的新型满液式蒸发器均气板是非常有益的。 
发明内容
本实用新型的目的就是针对现有满液式蒸发器均气板组件负荷降低时，气体回油流速也随之降低，不能满足蒸发器回油需求的缺陷，提供一种满液式蒸发器的均气板，它在全负荷和部分负荷条件下，都能自动调节回油速度。 
本实用新型的技术方案是这样实现的：它包括均气板(3)、均气板(3)上开有均气小孔(4)，均气板(3)的横向两侧顶端固定有均气挡板(1)，其特征是：均气板(3)的纵向两侧的边缘开有第三级均气孔(5)，均气板(3)的横向两侧开有第二级均气孔(2)，第二级均气孔(2)和均气小孔(4)交错排列。 
本实用新型的优点： 
1、满足满液式蒸发器在负荷变化时回油的需求； 
2、减少润滑油对蒸发器换热效率的影响； 
3、与引射回油、热交换回油相比节能性好，制冷系统能效比高，回油效率 高。 
附图说明
图1是本实用新型的结构示意图 
图2是图1的俯视图 
图3是本实用新型的立体图 
具体实施方式
以下从结构及控制逻辑对本实用新型的实施方案作进一步描述： 
如图1、图2所示，本实用新型包括均气板(3)、均气板(3)上开有均气小孔(4)，均气板(3)的横向两侧顶端固定有均气挡板(1)，均气板(3)的纵向两侧的边缘开有第三级均气孔(5)，均气板(3)的横向两侧开有第二级均气孔(2)，第二级均气孔(2)和均气小孔(4)交错排列。 
原理说明：如附图3所示，当满液式蒸发器按设计工况全负荷运行时，均气板上第一均气小孔(4)、第二级均气孔(2)和第三级均气孔(5)全部投入使用，满足高负荷下气体回油量的需要，随着满液式蒸发器热负荷的降低，蒸发的气体体积流量减少，气体在均气孔和均气组件凹槽内的流速降低，当气体流速低至无法携带油滴至压缩机时，油滴低落至均气板组件凹槽中，随着油滴的不断聚集，第一均气小孔(4)将逐渐被油堵塞，均气板(3)上装有第二级均气孔(2)，第二级均气孔(2)因与第一均气小孔(4)存在高度差，而与布置在均气板(3)两边的第三级均气孔(5)仍能正常工作。此时，一方面第一均气小孔(4)堵塞后，第二、三级均气孔内的气体流速将增加，另一方面油在均气板组件的凹槽内聚集，油位上升，使得均气板组凹槽截面积减小，凹槽内气体流速也将增加。在以上两方面共同作用下，蒸发器在此负荷低负荷条件下的气体回油的流速将提高。随着蒸发器热负荷和气体流速的近一步降低，均气板上装有的第二级均气孔(2)，将逐渐被堵塞，最后仅第三级均气孔(5)能正常工作。根据设计，此时第三层均气孔内的流速和均气板组件内的流速，依旧能达到气体回油所需的流速。这样就实现了全负荷和部分负荷时蒸发器的稳定回油。 

Claims (1)

1.一种满液式蒸发器的均气板，它包括均气板(3)、均气板(3)上开有均气小孔(4)，均气板(3)的横向两侧顶端固定有均气挡板(1)，其特征是：均气板(3)的纵向两侧的边缘开有长方形第三级均气孔(5)，均气板(3)的横向两侧开有第二级均气孔(2)，第二级均气孔(2)和均气小孔(4)交错排列。
CN2011201660299U 2011-05-24 2011-05-24 一种满液式蒸发器的均气板 Expired - Lifetime CN202109705U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848605A (zh) * 2015-05-19 2015-08-19 麦克维尔空调制冷(武汉)有限公司 一种满液式蒸发器
CN105241127A (zh) * 2015-11-16 2016-01-13 珠海格力电器股份有限公司 换热器及换热设备
WO2019116072A1 (en) * 2017-12-11 2019-06-20 Carrier Corporation Baffle, evaporator comprising such a baffle and refrigeration circuit comprising such an evaporator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848605A (zh) * 2015-05-19 2015-08-19 麦克维尔空调制冷(武汉)有限公司 一种满液式蒸发器
CN104848605B (zh) * 2015-05-19 2017-11-28 麦克维尔空调制冷(武汉)有限公司 一种满液式蒸发器
CN105241127A (zh) * 2015-11-16 2016-01-13 珠海格力电器股份有限公司 换热器及换热设备
WO2019116072A1 (en) * 2017-12-11 2019-06-20 Carrier Corporation Baffle, evaporator comprising such a baffle and refrigeration circuit comprising such an evaporator

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Granted publication date: 20120111