WO2019129431A1 - Caloduc - Google Patents

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Publication number
WO2019129431A1
WO2019129431A1 PCT/EP2018/082040 EP2018082040W WO2019129431A1 WO 2019129431 A1 WO2019129431 A1 WO 2019129431A1 EP 2018082040 W EP2018082040 W EP 2018082040W WO 2019129431 A1 WO2019129431 A1 WO 2019129431A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
pipe
region
enabling
housing
Prior art date
Application number
PCT/EP2018/082040
Other languages
English (en)
Inventor
Ahmet Refik Ozdemir
Caglar SAHIN
Ercan KURTULDU
Yunus KOSE
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2019129431A1 publication Critical patent/WO2019129431A1/fr

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Classifications

    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F28D1/06—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 the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes

Definitions

  • the present invention relates to a heat pipe enabling improving the operational efficiency particularly of hermetic compressors used in refrigerators.
  • hermetic compressors used particularly in refrigerators
  • a coolant from an evaporator is received into a housing of the compressor by means of a suction pipe provided out of the housing, and then passes through a suction muffler and reaches the cylinder.
  • Said coolant is compressed in the cylinder and its temperature rises during this compression. This causes heat to be transferred from the cylinder region inwards the housing.
  • the inlet power of the compressor increases, thereby reducing its performance.
  • the electric engine used in driving a crank-connection rod mechanism, the compressor body (cylinder-piston mechanism) and the valve group are disposed in the same sealing housing.
  • Heat is released in the housing during operation of the compressor due to the efficiency of the electric engine being about 75-85% and frictions on the bearings. This released heat causes the coolant to heat up before it is introduced into the cylinder. Said heat should be disposed to enhance the efficiency of the compressor.
  • Japanese patent document no. JP3175194 mentions a structure enabling cooling a cylinder head.
  • an end of a heat pipe is placed into a hole bored in the cylinder, and the other end of the heat pipe is left out of the housing.
  • a hole needs to be bored in the housing to be able to convey the heat pipe out of the housing, and this may cause sealing problems.
  • the aim of the present invention is to realize a heat pipe enabling improving the operational efficiency particularly of hermetic compressors.
  • Another aim of the present invention is to realize a heat pipe which can be used in existing compressors without requiring any modification.
  • Figure 1 is a view of the heat pipe.
  • Figure 2 a view of the heat pipe assembled to an exhaust pipe.
  • Figure 3 is a view of the heat pipe assembled to a suction pipe.
  • the heat pipe (1) enabling improving the operational efficiency particularly in hermetic piston compressors, comprises
  • the heat pipe (1) enabling improving the operational efficiency particularly in hermetic piston compressors, comprises in its most basic form at least one evaporator region (2) contacting an exhaust pipe (E) or a suction pipe (I) of a compressor.
  • the evaporator region has at least one inflection (21) enabling increasing the contact surface with said pipe.
  • Said infliction (21) is preferably shaped such that at least a portion of the evaporator region (2) at least partially surrounds the periphery of the exhaust pipe (E) or the suction pipe (I).
  • the evaporator region (2) may be assumed in the form of a hollow pipe.
  • the inflection (21) is preferably shaped so as to give a J-shape to this hollow pipe.
  • a coolant is provided in the evaporator region (2).
  • Said coolant is in liquid phase in the evaporator region (2), and shifts to gaseous phase by the heat the evaporator region (2) receives from outside.
  • the coolant which has shifted to gaseous phase advances towards the condenser region (3).
  • the condenser region (3) exchanges heat with the outer environment and the excess heat on the coolant is thus transferred to the outer environment.
  • the coolant losing heat shifts back to liquid phase and returns to the evaporator region (2).
  • the condenser region (3) has at least one baffle (31) enabling increasing the amount of transferred heat by increasing the contact surface. The coolant can thus lose heat more rapidly.
  • the condenser region (3) may also be assumed in the form of a hollow pipe.
  • the space within the condenser region (3) is connected to the space within the evaporator region (2).
  • the coolant can move easily between the evaporator region (2) and the condenser region (3).
  • the heat pipe (1) of the invention comprises at least one damper (4) provided between the condenser region (3) and the housing (M), damping the vibrations likely to occur on the condenser region (3) during operation of the compressor.
  • the damper (4) also acts as an insulation material inhibiting heat transfer between the condenser region (3) and the housing (M).
  • the heat pipe (1) is disposed on a suction line (I) of a compressor.
  • a heat transfer fluid introduced through the suction line (I) into the housing (M) of the compressor, is thus cooled by the heat pipe (1) of the invention.
  • Introduction of the heat transfer fluid into the housing (M) in lower temperatures enables increasing the volumetric efficiency of the compressor.
  • the heat pipe (1) is disposed on an exhaust line (E) of a compressor.
  • a heat transfer fluid discharged from the housing (M) of the compressor through the exhaust line (E), is thus cooled by the heat pipe (1) of the invention.
  • the heat transfer fluid cooled in the exhaust line (E) returns into the housing (M) through the suction line (I). Introduction of the heat transfer fluid into the housing (M) in lower temperatures enables increasing the volumetric efficiency of the compressor.
  • the heat pipe (1) of the invention is placed outside the housing (M) of the compressor.
  • the heat in the interior of the housing (M) is thus enabled to dissipate to the outer environment. Furthermore, it becomes unnecessary to bore any additional hole in the housing (M) thanks to the heat pipe (1) being disposed completely out of the housing (M), thereby avoiding sealing problems likely to occur on the housing (M).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Compressor (AREA)

Abstract

La présente invention concerne un caloduc (1) permettant d'améliorer l'efficacité opérationnelle en particulier dans des compresseurs à pistons hermétiques, caractérisé par une région d'évaporateur (2) présentant au moins une inflexion (21) permettant d'augmenter la surface de contact avec le conduit à partir duquel la chaleur doit être transférée, et par la région de condenseur (3) présentant au moins une chicane (31) permettant d'augmenter l'efficacité du transfert de chaleur.
PCT/EP2018/082040 2017-12-26 2018-11-21 Caloduc WO2019129431A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/21903A TR201721903A2 (tr) 2017-12-26 2017-12-26 Bi̇r isi borusu
TRA2017/21903 2017-12-26

Publications (1)

Publication Number Publication Date
WO2019129431A1 true WO2019129431A1 (fr) 2019-07-04

Family

ID=64477125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/082040 WO2019129431A1 (fr) 2017-12-26 2018-11-21 Caloduc

Country Status (2)

Country Link
TR (1) TR201721903A2 (fr)
WO (1) WO2019129431A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55148987A (en) * 1979-05-10 1980-11-19 Toshiba Corp Closed compressor
JPS5696187A (en) * 1979-12-27 1981-08-04 Toshiba Corp Cooling device for sealed compressor
JP3175194B2 (ja) 1991-05-23 2001-06-11 住友電気工業株式会社 樹脂被覆電線
JP2002048066A (ja) * 2000-08-04 2002-02-15 Matsushita Refrig Co Ltd 密閉型圧縮機
JP2010116839A (ja) * 2008-11-13 2010-05-27 Panasonic Corp 圧縮機およびこれを搭載した冷却システム
CN105464948A (zh) * 2015-12-18 2016-04-06 华南理工大学 一种强化冰箱压缩机壳体散热性能的装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55148987A (en) * 1979-05-10 1980-11-19 Toshiba Corp Closed compressor
JPS5696187A (en) * 1979-12-27 1981-08-04 Toshiba Corp Cooling device for sealed compressor
JP3175194B2 (ja) 1991-05-23 2001-06-11 住友電気工業株式会社 樹脂被覆電線
JP2002048066A (ja) * 2000-08-04 2002-02-15 Matsushita Refrig Co Ltd 密閉型圧縮機
JP2010116839A (ja) * 2008-11-13 2010-05-27 Panasonic Corp 圧縮機およびこれを搭載した冷却システム
CN105464948A (zh) * 2015-12-18 2016-04-06 华南理工大学 一种强化冰箱压缩机壳体散热性能的装置

Also Published As

Publication number Publication date
TR201721903A2 (tr) 2019-07-22

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