WO2016106981A1 - 一种环境试验箱用蒸发器 - Google Patents

一种环境试验箱用蒸发器 Download PDF

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Publication number
WO2016106981A1
WO2016106981A1 PCT/CN2015/074880 CN2015074880W WO2016106981A1 WO 2016106981 A1 WO2016106981 A1 WO 2016106981A1 CN 2015074880 W CN2015074880 W CN 2015074880W WO 2016106981 A1 WO2016106981 A1 WO 2016106981A1
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WIPO (PCT)
Prior art keywords
pipelines
evaporator
dehumidification
dehumidifying
line
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PCT/CN2015/074880
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English (en)
French (fr)
Inventor
黄晓光
朱荣华
周国林
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苏州苏试试验仪器股份有限公司
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Application filed by 苏州苏试试验仪器股份有限公司 filed Critical 苏州苏试试验仪器股份有限公司
Priority to US15/540,586 priority Critical patent/US20170356682A1/en
Priority to JP2017552202A priority patent/JP6349468B2/ja
Publication of WO2016106981A1 publication Critical patent/WO2016106981A1/zh

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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
    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L7/00—Heating or cooling apparatus; Heat insulating devices
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/002—Test chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L1/00—Enclosures; Chambers
    • 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
    • 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
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • 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
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of defrosting cycles
    • 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
    • F28D1/00—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 is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—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 is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—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 is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—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 is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—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 is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular elements

Definitions

  • the invention relates to the field of environmental testing equipment, and in particular to an evaporator for an environmental test chamber.
  • the environmental test chamber is a scientific and technological method to simulate the natural environment and climate, and it is destructive to modern industrial products.
  • the representative test of the environmental test chamber includes: high temperature test, low temperature test, high and low temperature alternating damp heat test.
  • the main purpose of the environmental test chamber is to control the temperature and humidity, so the environmental test chamber is designed with a refrigeration system, a dehumidification system, a humidifier, and the like.
  • the evaporator in the refrigeration system of the environmental test chamber is composed of a plurality of plate fins arranged at a distance and a heat exchange tube penetrating through the plate fins, and the existing evaporator can only be dehumidified by a dry air device at a low temperature. .
  • the dry air device consumes a large amount of energy and has a limited dehumidification effect.
  • an evaporator for an environmental test chamber comprising a plurality of plate fins arranged in parallel and a plurality of pipes running through the plate fins, wherein each pipe is composed of a straight tubular portion penetrating the plate fin and a coiled tubular portion formed by a curved pipe portion connected to both ends of the straight pipe portion; on the plate surface of the plate fin, each pipe is arranged in the longitudinal direction and spaced apart in the lateral direction Arranging; the pipeline is divided into three types: a refrigeration pipeline, a dehumidification pipeline, and a defrost pipeline; the refrigeration pipeline is plural, the dehumidification pipeline is also plural, and the defrost pipeline is at least one; The refrigeration The pipeline and the dehumidification pipeline are alternately arranged in a lateral direction of the plate fins in a manner of one or more partitions or more intervals; the refrigeration pipeline is supplied to the refrigeration system The refrigerant is cooled,
  • the plurality of defrost pipelines are arranged, and the defrost pipeline is also alternately arranged with the refrigeration pipeline and the dehumidification pipeline.
  • the pipelines on the evaporator in the existing refrigeration system are all heat exchange tubes (ie, refrigeration pipelines), and the present invention is to set some of the evaporator pipelines as refrigeration pipelines, and others as dehumidification pipelines. And alternately arrange the refrigeration line and the dehumidification line in a one-to-one or one-to-many manner, that is, the evaporator is shared by cooling and dehumidification, and the entire evaporation area of the evaporator is shared by cooling and dehumidification. .
  • At least one way is left in the pipeline of the evaporator as a defrost pipeline, and the defrost pipeline is connected to the hot gas discharged from the exhaust port of the compressor of the dehumidification system, and the hot gas outputted by the compressor of the dehumidification system is It is introduced into the evaporator to raise the temperature of the evaporator surface to achieve the effect of defrosting, and to reduce the frosting phenomenon in low temperature and high humidity conditions.
  • FIG. 1 is a front elevational view showing the structure of an embodiment of the present invention
  • Figure 2 is a right side view of Figure 1;
  • FIG. 3 is a schematic view showing the structure of a pipeline according to an embodiment of the present invention.
  • Embodiment See Figure 1-3:
  • An evaporator for an environmental test chamber as shown in FIGS. 1 and 2, includes a plurality of plate fins 1 arranged in parallel and a plurality of pipes 2 extending through the plate fins 1.
  • each of the pipes 2 is formed by a straight pipe portion 21 penetrating through the plate fins 1 and connected to the straight pipe portion 21.
  • the respective pipes 2 are arranged in the longitudinal direction and are arranged in the lateral direction, the longitudinal direction is the up and down direction in FIG. 2, and the lateral direction is the left and right in FIG. In the direction, the upper end of each pipe 2 is taken out as an inlet, and the lower end is taken out as an outlet.
  • the pipeline 2 is divided into three types: a refrigeration pipeline A, a dehumidification pipeline B, and a defrost pipeline C.
  • a refrigeration pipeline A There are a plurality of refrigeration pipelines A, a plurality of dehumidification pipelines B, and at least one defrost pipeline C, as shown in the figure, and the number of defrost pipelines C is generally smaller than that of the refrigeration pipelines.
  • the number of A and dehumidification lines B is small.
  • the refrigeration line A, the dehumidification line B and the defrost line C are in the lateral direction of the plate surface of the plate fin, in a manner of one or more partitions or more.
  • the specific arrangement is not limited, and it is generally preferred to repeat the arrangement of the basic repeating units, which is more uniform.
  • FIG. 2 is a two refrigeration pipeline A and a defrost pipeline C in order from left to right.
  • the arrangement of the two dehumidification lines B constitutes a basic repeating unit, and such a basic repeating unit is repeatedly repeated. That is, in FIG. 2, from left to right are two refrigeration lines A, one defrost line C, two dehumidification lines B, two further refrigeration lines A, one defrost line C, and two dehumidification lines B. ....
  • the refrigeration line A is supplied to the refrigerant refrigerant sent from the refrigeration system, and the dehumidification line B is supplied to the dehumidification refrigerant sent from the dehumidification system, and the defrost line C is supplied to the exhaust of the compressor of the dehumidification system.
  • the hot air discharged from the mouth is supplied to the refrigerant refrigerant sent from the refrigeration system.
  • the refrigeration system is a refrigeration system in which a compressor, a condenser, and the like are connected by a pipeline in addition to the evaporator of the embodiment; the dehumidification system is a compressor other than the evaporator of the embodiment, and a compressor is added. Compressed dehumidification system connected by pipelines.
  • the evaporator is shared by cooling and dehumidification, and the entire evaporation area of the evaporator is shared by cooling and dehumidification, and at least one path is left in the pipeline of the evaporator as a defrost line, and the defrost line is connected
  • the hot gas discharged from the exhaust port of the compressor of the dehumidification system leads the hot gas outputted by the compressor of the dehumidification system to the evaporator to raise the temperature of the evaporator surface to achieve the effect of defrosting, and reduce the knot of the low temperature and high humidity condition. Frost phenomenon.

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Abstract

一种环境试验箱用蒸发器，包括板式翅片（1）以及多个管路（2）。管路（2）分为制冷管路（A）、除湿管路（B）以及除霜管路（C）三种管路。制冷管路（A）和除湿管路（B）在板式翅片（1）的板面的横向上，以一隔一或一隔多或多隔多的方式交替排布。制冷管路（A）供接制冷系统中送来的制冷制冷剂，而除湿管路（B）供接除湿系统中送来的除湿制冷剂，除霜管路（C）供接除湿系统的压缩机的排气口排出的热气。由于制冷和除湿共用该蒸发器，且使制冷和除湿共享蒸发器的整个蒸发面积，同时在蒸发器的管路（2）中还留有至少一路作为除霜管路（C），将除湿系统的压缩机本会输出的热气引至蒸发器中来对蒸发器表面进行升温达到除霜的效果。

Description

一种环境试验箱用蒸发器 技术领域
本发明涉及环境试验设备领域，具体涉及一种环境试验箱用蒸发器。
背景技术
环境试验箱是用科技的手段模拟出自然环境气候，对现代工业品所造成的破坏性，环境试验箱的代表试验有：高温试验、低温试验、高低温交变湿热试验等。为实现上述试验，环境试验箱最主要的是控制温度和湿度，故环境试验箱中设计有制冷系统、除湿系统、加湿器等。
现有技术中，环境试验箱的制冷系统中的蒸发器是由多块相距布置的板式翅片以及贯穿于板式翅片上换热管组成，现有蒸发器在低温时只能用干燥空气装置除湿。对于除湿，干燥空气装置能耗大，除湿效果也有限。
另外，在低温湿度工况时，空气中的水蒸气遇到板式翅片，蒸发器会出现结霜现象，大大降低了工作能力，如何除霜也是现有蒸发器必然要考虑的问题，现有蒸发器除霜大多是在蒸发器中加入电热元件，以电加热的方式提升蒸发器翅片的表面温度化霜，但这种方式能耗大。
发明内容
本发明的目的在于提供一种环境试验箱用蒸发器，以使制冷和除湿共享蒸发面积，且具低能耗的除霜功能。
为达到上述目的，本发明采用的技术方案是：一种环境试验箱用蒸发器，包括多块平行布置的板式翅片以及贯穿于板式翅片上多个管路，所述每个管路是由贯穿于板式翅片上的直管部和连接于直管部两端的弯曲管部构成的盘管状管路；在所述板式翅片的板面上，各个管路沿纵向布置，在横向上相距排列；所述管路分为三种：制冷管路、除湿管路以及除霜管路；所述制冷管路为多个，除湿管路也为多个，而除霜管路为至少一个；所述制冷 管路和除湿管路在所述板式翅片的板面的横向上，以一隔一或一隔多或多隔多的方式交替排布；所述制冷管路供接制冷系统中送来的制冷制冷剂，而除湿管路供接除湿系统中送来的除湿制冷剂，所述除霜管路供接除湿系统的压缩机的排气口排出的热气。
上述方案中，所述除霜管路为多个，且除霜管路也与制冷管路和除湿管路交替排布。
本发明设计原理以及效果如下：
现有制冷系统中的蒸发器上的管路都是换热管(即制冷管路)，而本发明是将蒸发器的管路中的一些设为制冷管路，而另一些设为除湿管路，且将制冷管路和除湿管路以一隔一或一隔多或多隔多的方式交替排布，即制冷和除湿共用该蒸发器，且使制冷和除湿共享蒸发器的整个蒸发面积。并且，在蒸发器的管路中还留至少一路作为除霜管路，且该除霜管路接除湿系统的压缩机的排气口排出的热气，将除湿系统的压缩机本会输出的热气引至蒸发器中来对蒸发器表面进行升温达到除霜的效果，降低低温高湿工况的结霜现象。
附图说明
图1为本发明实施例结构主视示意图；
图2为图1的右视示意图；
图3为本发明实施例管路结构示意图。
以上附图中：1、板式翅片；2、管路；21、直管部；22、弯曲管部；A、制冷管路；B、除湿管路；C、除霜管路。
具体实施方式
下面结合附图及实施例对本发明作进一步描述：
实施例：参见图1-3所示：
一种环境试验箱用蒸发器，参见图1、2所示，包括多块平行布置的板式翅片1以及贯穿于板式翅片1上多个管路2。
见图3所示，每个管路2是由贯穿于板式翅片1上的直管部21和连接于直管部21 两端的弯曲管部22构成的盘管状管路。
见图2所示，在板式翅片1的板面上，各个管路2沿纵向布置，在横向上相距排列，所述纵向为图2中的上下方向，所述横向为图2中的左右方向，每个管路2的上端引出作为入口，下端引出作为出口。
见图2所示，所述管路2分为三种：制冷管路A、除湿管路B以及除霜管路C。所述制冷管路A为多个，除湿管路B也为多个，而除霜管路C为至少一个，如图中举例也为多个，通常除霜管路C的数量比制冷管路A和除湿管路B的数量少。
见图2所示，所述制冷管路A、除湿管路B及除霜管路C在所述板式翅片的板面的横向上，以一隔一或一隔多或多隔多的方式交替排布，具体排列形式不限，通常以基础重复单元重复出现排布为较佳，这么更为均匀。
本实施例中制冷管路A、除湿管路B及除霜管路C的具体排列的方式：见图2，是以从左至右依次的两制冷管路A、一除霜管路C、再两除湿管路B的排布构成基础重复单元，以这样的基础重复单元重复出现。即，图2中，从左至右依次是两制冷管路A、一除霜管路C、两除湿管路B、再两制冷管路A、一除霜管路C、两除湿管路B……。
制冷管路A供接制冷系统中送来的制冷制冷剂，而除湿管路B供接除湿系统中送来的除湿制冷剂，所述除霜管路C供接除湿系统的压缩机的排气口排出的热气。
所述制冷系统即是除本实施例蒸发器外，再加压缩机、冷凝器等以管路连接而成的制冷系统；所述除湿系统是除本实施例蒸发器外，再加压缩机等以管路连接而成的压缩机式除湿系统。
本实施例制冷和除湿共用该蒸发器，且使制冷和除湿共享蒸发器的整个蒸发面积，并且，在蒸发器的管路中还留至少一路作为除霜管路，且该除霜管路接除湿系统的压缩机的排气口排出的热气，将除湿系统的压缩机本会输出的热气引至蒸发器中来对蒸发器表面进行升温达到除霜的效果，降低低温高湿工况的结霜现象。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (2)

  1. 一种环境试验箱用蒸发器，包括多块平行布置的板式翅片(1)以及贯穿于板式翅片(1)上多个管路(2)，所述每个管路(2)是由贯穿于板式翅片(1)上的直管部(21)和连接于直管部(21)两端的弯曲管部(22)构成的盘管状管路；在所述板式翅片(1)的板面上，各个管路(2)沿纵向布置，在横向上相距排列；其特征在于：所述管路(2)分为三种：制冷管路(A)、除湿管路(B)以及除霜管路(C)；所述制冷管路(A)为多个，除湿管路(B)也为多个，而除霜管路(C)为至少一个；所述制冷管路(A)和除湿管路(B)在所述板式翅片的板面的横向上，以一隔一或一隔多或多隔多的方式交替排布；所述制冷管路(A)供接制冷系统中送来的制冷制冷剂，而除湿管路(B)供接除湿系统中送来的除湿制冷剂，所述除霜管路(C)供接除湿系统的压缩机的排气口排出的热气。
  2. 根据权利要求1所述环境试验箱用蒸发器，其特征在于：所述除霜管路(C)为多个，且除霜管路(C)也与制冷管路(A)和除湿管路(B)交替排布。
PCT/CN2015/074880 2014-12-29 2015-03-23 一种环境试验箱用蒸发器 WO2016106981A1 (zh)

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