JPH06249545A - Cooling system - Google Patents

Cooling system

Info

Publication number
JPH06249545A
JPH06249545A JP5035011A JP3501193A JPH06249545A JP H06249545 A JPH06249545 A JP H06249545A JP 5035011 A JP5035011 A JP 5035011A JP 3501193 A JP3501193 A JP 3501193A JP H06249545 A JPH06249545 A JP H06249545A
Authority
JP
Japan
Prior art keywords
capillary tube
joint pipe
cooling system
evaporator
refrigerant
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5035011A
Other languages
Japanese (ja)
Inventor
Machiko Kida
真智子 木田
Hiroaki Kan
宏明 管
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
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 Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP5035011A priority Critical patent/JPH06249545A/en
Publication of JPH06249545A publication Critical patent/JPH06249545A/en
Pending legal-status Critical Current

Links

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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

PURPOSE:To reduce refrigerant sounds and vibrations generated at a connection of a capillary tube and a joint pipe in a cooling system for use with freezing and refrigerating equipments and air conditioning equipments. CONSTITUTION:A cooling system comprises a capillary tube 13, an evaporator and a joint pipe 14 connecting the capillary tube 13 and the evaporator to each other. A tip end of the capillary tube 13 is positioned at an inner surface of the joint pipe 14 and is provided with substantially V-shaped notches 17.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、冷凍・冷蔵機器および
空調機器等に用いられる冷却システムに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling system used for freezing / refrigerating equipment, air conditioning equipment and the like.

【０００２】[0002]

【従来の技術】近年、低騒音化の面から、冷却システム
内を流れる冷媒の冷媒音の低減に関するニ−ズが高まっ
ている。2. Description of the Related Art In recent years, from the viewpoint of noise reduction, there is an increasing need for reducing the noise of the refrigerant flowing through a cooling system.

【０００３】以下、図面を参照しながら、従来例（特開
平４−１５４９５号公報）について説明する。図４は、
従来の冷却システムの冷凍サイクル図であり、図５は、
従来の冷却システムを構成するキャピラリチュ−ブとジ
ョイントパイプの接続部の断面図、図６はキャピラリチ
ュ−ブの斜視図である。図４、図５、図６において、１
は圧縮機、２は凝縮器、３はキャピラリチュ−ブ、４は
ジョイントパイプ、５は蒸発器であり、圧縮機１、凝縮
器２、キャピラリチュ−ブ３、ジョイントパイプ４、蒸
発器５は内部を冷媒Ａが流れる配管によって接続されて
いる。A conventional example (JP-A-4-15495) will be described below with reference to the drawings. Figure 4
FIG. 5 is a refrigeration cycle diagram of a conventional cooling system, and FIG.
FIG. 6 is a cross-sectional view of a connecting portion between a capillary tube and a joint pipe constituting a conventional cooling system, and FIG. 6 is a perspective view of the capillary tube. In FIGS. 4, 5, and 6, 1
Is a compressor, 2 is a condenser, 3 is a capillary tube, 4 is a joint pipe, 5 is an evaporator, and the compressor 1, condenser 2, capillary tube 3, joint pipe 4, and evaporator 5 are The inside is connected by a pipe through which the refrigerant A flows.

【０００４】キャピラリチュ−ブ３の一部は、ジョイン
トパイプ４に挿入され、ろう材６によってろう付け接合
されている。A part of the capillary tube 3 is inserted into the joint pipe 4 and brazed by a brazing material 6.

【０００５】以上のように構成された、冷却システムに
ついて、以下その動作について説明する。The operation of the cooling system having the above structure will be described below.

【０００６】圧縮機１で圧縮された冷媒Ａは、凝縮器２
で液化しキャピラリチュ−ブ３へと送られる。そして、
キャピラリーチューブ３で減圧され気液二相流としてジ
ョイントパイプ４、蒸発器５に入り気化し再び、圧縮機
１へと戻り、冷凍サイクルを形成する。The refrigerant A compressed by the compressor 1 is transferred to the condenser 2
It is liquefied by and is sent to the capillary tube 3. And
It is decompressed by the capillary tube 3 and enters the joint pipe 4 and the evaporator 5 as a gas-liquid two-phase flow, vaporizes, and returns to the compressor 1 again to form a refrigeration cycle.

【０００７】[0007]

【発明が解決しようとする課題】しかしながら、従来の
冷却システムの構成では、キャピラリーチューブ３の内
径とジョイントパイプ４の内径との間に段差が生じる。
このため冷媒Ａが、ジョイントパイプ４の管内へ吐出さ
れる際に、急激な圧力変化が起き、この圧力変化によっ
て、気液二相流状態である冷媒Ａの流れに、大きな乱れ
が生じる。この流れの乱れが、キャピラリチュ−ブ３と
ジョイントパイプ４など、蒸発器５を含めた冷却システ
ムにおいて、異音や振動を発生するという課題を有して
いた。本発明は上記課題に鑑み、冷媒音や振動を抑えた
冷却システムを提供するものである。However, in the structure of the conventional cooling system, a step is formed between the inner diameter of the capillary tube 3 and the inner diameter of the joint pipe 4.
Therefore, when the refrigerant A is discharged into the pipe of the joint pipe 4, a rapid pressure change occurs, and this pressure change causes a large turbulence in the flow of the refrigerant A in the gas-liquid two-phase flow state. The turbulence of the flow has a problem that abnormal noise or vibration is generated in the cooling system including the evaporator 5, such as the capillary tube 3 and the joint pipe 4. In view of the above problems, the present invention provides a cooling system that suppresses refrigerant noise and vibration.

【０００８】[0008]

【課題を解決するための手段】本発明の冷却システムは
上記課題を解決するために、キャピラリチュ−ブと蒸発
器と、前記キャピラリチュ−ブと前記蒸発器とを接続す
るジョイントパイプからなり、前記キャピラリチュ−ブ
の先端を前記ジョイントパイプの内面に位置させ、且つ
前記キャピラリチューブの先端に略Ｖ字状の切り欠きを
設けたものである。In order to solve the above-mentioned problems, the cooling system of the present invention comprises a capillary tube and an evaporator, and a joint pipe connecting the capillary tube and the evaporator, The tip of the capillary tube is located on the inner surface of the joint pipe, and a substantially V-shaped notch is provided at the tip of the capillary tube.

【０００９】[0009]

【作用】本発明の冷却システムは上記した構成により、
キャピラリーチューブからジョイントパイプへ徐々に冷
媒を吐出することができるので、キャピラリーチューブ
からジョイントパイプへの冷媒の吐出流速を抑えること
ができ、急激な圧力変化を和らげることができる。The cooling system of the present invention has the above structure.
Since the refrigerant can be gradually discharged from the capillary tube to the joint pipe, the discharge flow velocity of the refrigerant from the capillary tube to the joint pipe can be suppressed, and a sudden pressure change can be softened.

【００１０】[0010]

【実施例】以下、本発明の冷却システムの一実施例につ
いて、図面を参照しながら説明する。図１は本発明の冷
却システムに用いられるキャピラリーチューブとジョイ
ントパイプとの接続部の断面図、図２はキャピラリーチ
ューブの斜視図、図３は冷却システムの冷凍サイクル図
である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cooling system of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a connecting portion between a capillary tube and a joint pipe used in the cooling system of the present invention, FIG. 2 is a perspective view of the capillary tube, and FIG. 3 is a refrigeration cycle diagram of the cooling system.

【００１１】図１、図２、図３において、１１は圧縮
機、１２は凝縮器、１３はキャピラリチュ−ブ、１４は
ジョイントパイプ、１５は蒸発器であり、圧縮機１１、
凝縮器１２、キャピラリチュ−ブ１３、ジョイントパイ
プ１４、蒸発器１５は内部を冷媒Ａが流れる配管によっ
て接続されている。In FIGS. 1, 2 and 3, 11 is a compressor, 12 is a condenser, 13 is a capillary tube, 14 is a joint pipe, and 15 is an evaporator.
The condenser 12, the capillary tube 13, the joint pipe 14, and the evaporator 15 are connected by a pipe through which the refrigerant A flows.

【００１２】キャピラリチュ−ブ１３の一部は、ジョイ
ントパイプ１４に挿入され、ろう材１６によってろう付
け接合されており、ジョイントパイプ１４に挿入された
キャピラリーチュ−ブ１３の先端には、略Ｖ字状の切り
欠き１７を設けている。A part of the capillary tube 13 is inserted into the joint pipe 14 and is brazed and joined by a brazing material 16. The tip of the capillary tube 13 inserted into the joint pipe 14 is approximately V-shaped. A character-shaped notch 17 is provided.

【００１３】以上のように構成された冷却システムにつ
いて、以下図面を参照しながらその動作を説明する。The operation of the cooling system configured as described above will be described below with reference to the drawings.

【００１４】液単相流としてキャピラリーチュ−ブ１３
に入ってきた冷媒Ｂは、キャピラリーチュ−ブ１３で減
圧され、気液二相流としてキャピラリーチュ−ブ１３の
出口側よりジョイントパイプ１４、蒸発器１５へと流れ
ていく。As a liquid single-phase flow, a capillary tube 13
The incoming refrigerant B is decompressed in the capillary tube 13 and flows as a gas-liquid two-phase flow from the outlet side of the capillary tube 13 to the joint pipe 14 and the evaporator 15.

【００１５】この時、キャピラリーチュ−ブ１３の先端
には、冷媒Ｂの流れ方向に徐々に拡大する略Ｖ字状の切
り欠き１７を設けているので、キャピラリーチュ−ブ１
３からジョイントパイプ１４へ徐々に冷媒を吐出するこ
とができるので、ジョイントパイプ１３への冷媒吐出流
速を抑えることができる。よって、冷媒Ｂの急激な圧力
変化を和らげることができ、冷媒Ｂの乱れを抑制でき、
冷媒音や、振動を抑えられる。At this time, at the tip of the capillary tube 13, there is provided a substantially V-shaped notch 17 that gradually expands in the flow direction of the refrigerant B, so the capillary tube 1
Since the refrigerant can be gradually discharged from 3 to the joint pipe 14, the flow rate of the refrigerant discharged to the joint pipe 13 can be suppressed. Therefore, the rapid pressure change of the refrigerant B can be softened, the disturbance of the refrigerant B can be suppressed,
Refrigerant noise and vibration can be suppressed.

【００１６】[0016]

【発明の効果】以上のように本発明の冷却システムはキ
ャピラリチュ−ブと、蒸発器と、前記キャピラリチュ−
ブと前記蒸発器とを接続するジョイントパイプとからな
り、前記キャピラリチュ−ブの先端を前記ジョイントパ
イプの内面に位置させ、且つ前記キャピラリチューブの
先端に略Ｖ字状の切り欠きを設けたことにより、キャピ
ラリチューブからジョイントパイプへ流動する際の急激
な圧力変化を和らげることができるので、キャピラリチ
ュ−ブとジョイントパイプから発生する冷媒音、振動を
抑えることができる。As described above, the cooling system of the present invention includes a capillary tube, an evaporator, and the capillary tube.
And a joint pipe connecting the evaporator and the evaporator, the tip of the capillary tube is located on the inner surface of the joint pipe, and a substantially V-shaped notch is provided at the tip of the capillary tube. As a result, a sudden change in pressure when flowing from the capillary tube to the joint pipe can be softened, so that refrigerant noise and vibration generated from the capillary tube and the joint pipe can be suppressed.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の実施例のキャピラリーチューブとジョ
イントパイプの接続部の要部断面図FIG. 1 is a sectional view of an essential part of a connecting portion between a capillary tube and a joint pipe according to an embodiment of the present invention.

【図２】本発明の実施例のキャピラリーチューブの斜視
図FIG. 2 is a perspective view of a capillary tube according to an embodiment of the present invention.

【図３】本発明の実施例の冷却システムの冷凍サイクル
図FIG. 3 is a refrigeration cycle diagram of the cooling system according to the embodiment of the present invention.

【図４】従来の冷却システムの冷凍サイクル図FIG. 4 is a refrigeration cycle diagram of a conventional cooling system.

【図５】従来の冷却システムのキャピラリーチューブと
ジョイントパイプの接続部の断面図FIG. 5 is a sectional view of a connecting portion between a capillary tube and a joint pipe of a conventional cooling system.

【図６】従来のキャピラリーチューブの斜視図FIG. 6 is a perspective view of a conventional capillary tube.

【符号の説明】[Explanation of symbols]

１３ キャピラリーチューブ １４ ジョイントパイプ １５ 蒸発器 １７ 切り欠き 13 Capillary tube 14 Joint pipe 15 Evaporator 17 Notch

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 キャピラリチュ−ブと蒸発器と、前記キ
ャピラリチュ−ブと前記蒸発器とを接続するジョイント
パイプとからなり、前記キャピラリチュ−ブの先端を前
記ジョイントパイプの内面に位置させ、且つ前記キャピ
ラリチューブの先端に略Ｖ字状の切り欠きを設けたこと
を特徴とする冷却システム。1. A capillary tube, an evaporator, and a joint pipe connecting the capillary tube and the evaporator, wherein the tip of the capillary tube is located on the inner surface of the joint pipe. In addition, a cooling system, characterized in that a substantially V-shaped notch is provided at the tip of the capillary tube.
JP5035011A 1993-02-24 1993-02-24 Cooling system Pending JPH06249545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5035011A JPH06249545A (en) 1993-02-24 1993-02-24 Cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5035011A JPH06249545A (en) 1993-02-24 1993-02-24 Cooling system

Publications (1)

Publication Number Publication Date
JPH06249545A true JPH06249545A (en) 1994-09-06

Family

ID=12430144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5035011A Pending JPH06249545A (en) 1993-02-24 1993-02-24 Cooling system

Country Status (1)

Country Link
JP (1) JPH06249545A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11118294A (en) * 1997-10-13 1999-04-30 Mitsubishi Electric Corp Refrigerating cycle
EP0943879A2 (en) * 1998-03-20 1999-09-22 Whirlpool Corporation Device for optimizing the flow of refrigerant fluid fed to an evaporator of a refrigeration circuit and acting as an expansion noise level reducer
WO2006101322A1 (en) * 2005-03-21 2006-09-28 Woongjin Coway Co., Ltd. A refrigeration apparatus for water purifier having reduced noise from its evaporator
JP2008196848A (en) * 2008-05-26 2008-08-28 Mitsubishi Electric Corp Passage device, refrigerating cycle device, pressure pulsation reducing device and pressure pulsation reducing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11118294A (en) * 1997-10-13 1999-04-30 Mitsubishi Electric Corp Refrigerating cycle
EP0943879A2 (en) * 1998-03-20 1999-09-22 Whirlpool Corporation Device for optimizing the flow of refrigerant fluid fed to an evaporator of a refrigeration circuit and acting as an expansion noise level reducer
EP0943879A3 (en) * 1998-03-20 2000-03-22 Whirlpool Corporation Device for optimizing the flow of refrigerant fluid fed to an evaporator of a refrigeration circuit and acting as an expansion noise level reducer
WO2006101322A1 (en) * 2005-03-21 2006-09-28 Woongjin Coway Co., Ltd. A refrigeration apparatus for water purifier having reduced noise from its evaporator
JP2008196848A (en) * 2008-05-26 2008-08-28 Mitsubishi Electric Corp Passage device, refrigerating cycle device, pressure pulsation reducing device and pressure pulsation reducing method

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