JPH08247585A - Refrigerating cycle for refrigerator or the like - Google Patents
Refrigerating cycle for refrigerator or the likeInfo
- Publication number
- JPH08247585A JPH08247585A JP4942695A JP4942695A JPH08247585A JP H08247585 A JPH08247585 A JP H08247585A JP 4942695 A JP4942695 A JP 4942695A JP 4942695 A JP4942695 A JP 4942695A JP H08247585 A JPH08247585 A JP H08247585A
- Authority
- JP
- Japan
- Prior art keywords
- trap
- refrigerator
- refrigerating cycle
- pipe
- capillary tube
- 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
Links
Landscapes
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Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、特に鉄系の摺動部品を
用いた圧縮機を搭載した冷蔵庫に関し、摺動部の摩擦に
より生成された摩耗粉などの鉄系異物が冷凍機油に混入
して圧縮機から冷媒と共に吐出され、管径の細いキャピ
ラリチューブを詰らせて冷媒の正常な流れを妨げるのを
防止するために、キャピラリチューブの前方の配管途中
に上記摩耗粉等を捕獲する捕獲器を設けるようにした冷
蔵庫等の冷凍サイクルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator equipped with a compressor using iron-based sliding parts, in which refrigerating machine oil is contaminated with iron-based foreign matters such as abrasion powder generated by friction of sliding parts. In order to prevent the capillary tube having a small diameter from being discharged from the compressor together with the refrigerant and obstructing the normal flow of the refrigerant, the above-mentioned abrasion powder and the like are captured in the middle of the pipe in front of the capillary tube. The present invention relates to a refrigerating cycle such as a refrigerator provided with a trap.
【0002】[0002]
【従来の技術】冷媒と共に圧縮機から吐出されて冷凍サ
イクル中に流出する異物は、冷凍サイクルの信頼性に悪
影響を及ぼすことはよく知られているところである。こ
れら異物の主たるものとしては、冷凍サイクルの組立時
に使用する加工油や切削油等の工程副資材を通して混入
する異物、圧縮機摺動部の摩耗粉、冷媒と冷凍機油と冷
凍サイクル構成部材の相互化学反応による生成物等が考
えられる。従来の冷蔵庫においては、冷凍サイクル中の
水分を除去すべく設けていたドライヤが上記異物を結果
的に捕獲する役目をなしていた。このため、ドライヤ中
の粒状乾燥剤が異物により破壊されて粉状となり、該ド
ライヤ自体を詰らせてしまうという問題があった。2. Description of the Related Art It is well known that foreign substances discharged from a compressor together with a refrigerant and flowing out during a refrigeration cycle adversely affect the reliability of the refrigeration cycle. These foreign substances mainly include foreign substances mixed through process submaterials such as processing oil and cutting oil used during the assembly of the refrigeration cycle, abrasion powder of the sliding parts of the compressor, refrigerant, refrigeration oil and refrigeration cycle components. Products from chemical reactions are possible. In a conventional refrigerator, a dryer provided to remove water in the refrigeration cycle has a function of eventually capturing the foreign matter. For this reason, there is a problem that the granular desiccant in the dryer is broken by the foreign matter and becomes powdery, and the dryer itself is clogged.
【0003】また、ドライヤ以外で異物を捕獲するもの
を冷凍サイクル中に設けたものとしては図8〜図9に示
すものがある。Further, there is one shown in FIGS. 8 to 9 in which a device for capturing foreign matters other than the dryer is provided in the refrigeration cycle.
【0004】図において、21は圧縮機、22は凝縮
器、23は異物除去管、24はドライヤ、25はキャピ
ラリチューブ、26は蒸発器、これら項番21〜26は
配管27をもって順次直列にしかも環状に接続されてい
る。ここで上記異物除去管23の詳細を図9を用いて説
明すると、異物除去管23内には銅系の球状金属からな
るフィルタ材28が充填されている。29は8〜12メ
ッシュ相当の粗さを有する網であり、上記フィルタ28
はこの網29より管内に保持されている。これら網29
およびフィルタ28は冷凍サイクル内において生成され
る阻害物質、例えば摩耗粉を捕獲する目的で設けられて
いる訳であるが、網29の目が8〜12メッシュと非常
に細かいことより、網29自体が摩耗粉等で詰ってしま
うことが応々にしてあった。このことは、銅系の球状金
属からなるフィルタ28部においても云えることであっ
た。In the figure, 21 is a compressor, 22 is a condenser, 23 is a foreign matter removing pipe, 24 is a dryer, 25 is a capillary tube, 26 is an evaporator, and these item numbers 21 to 26 are sequentially connected in series with a pipe 27. It is connected in a ring. The details of the foreign matter removing pipe 23 will be described with reference to FIG. 9. The foreign matter removing pipe 23 is filled with a filter material 28 made of copper-based spherical metal. Reference numeral 29 is a net having a roughness corresponding to 8 to 12 mesh, and the filter 28
Is held in the pipe by this net 29. These nets 29
The filter 28 is provided for the purpose of capturing an inhibitory substance generated in the refrigeration cycle, for example, abrasion powder. However, since the mesh 29 has a very fine mesh of 8 to 12 mesh, the mesh 29 itself. Was often clogged with abrasion powder. This can be said also in the filter 28 part made of a copper-based spherical metal.
【0005】尚、この種従来例としては特開平6−19
4009号公報等がある。As a conventional example of this type, Japanese Patent Laid-Open No. 6-19
No. 4009 is available.
【0006】[0006]
【発明が解決しようとする課題】先に説明した従来技術
においては、次に記述するような問題があった。The above-mentioned prior art has the following problems.
【0007】(1)フィルタや吸着剤(ドライヤ)が異
物のために劣化することによって、異物が網をくぐりぬ
けて配管側(キャピラリチューブ側)に飛び出し、上記
キャピラリチューブを塞ぐ可能性があった。(1) When the filter or the adsorbent (dryer) deteriorates due to foreign matter, there is a possibility that the foreign matter may pass through the net and jump out to the pipe side (capillary tube side) to block the capillary tube.
【0008】(2)異物によるフィルタ孔の目つまりに
よる異物除去機構内での詰りを誘発する恐れがあった。(2) There is a risk that clogging of the filter hole due to foreign matter may occur in the foreign matter removing mechanism.
【0009】(3)ドライヤの吸着剤などは、異物との
関連で吸着容量の制限や吸着剤の劣化が問題となった。(3) The adsorbent for the dryer has problems such as the limitation of the adsorption capacity and the deterioration of the adsorbent in relation to foreign matters.
【0010】[0010]
【課題を解決するための手段】上記の問題点を解決する
ための手段として、本発明では、 (1)冷凍サイクル中に設ける捕獲器を配管内壁よりも
大きな径或いは溜め易い管として設け、冷媒の正常な流
れを妨げずに異物を捕獲するようにしたものである。As means for solving the above problems, according to the present invention, (1) the trap provided in the refrigeration cycle is provided as a pipe having a diameter larger than that of the inner wall of the pipe or a pipe that can be easily stored, The foreign matter is captured without disturbing the normal flow of the.
【0011】(2)捕獲器の材質を、冷媒や冷凍機油、
冷凍サイクル中に混入した異物によって化学変化せず、
且つ劣化しない材質としたものである。(2) The material of the trap is refrigerant, refrigerating machine oil,
There is no chemical change due to foreign substances mixed in during the refrigeration cycle,
In addition, the material does not deteriorate.
【0012】(3)異物除去機構の機能が半永久的に作
用する構造および材料を採用するようにしたものであ
る。(3) A structure and a material that allow the function of the foreign matter removing mechanism to act semipermanently are adopted.
【0013】上記の具体的手段として、圧縮機、凝縮
器、ドライヤ、キャピラリチューブ、蒸発器が配管によ
って直列に順次環状に接続された冷凍サイクルにおい
て、前記圧縮機吐出側とキャピラリチューブとの間の配
管途中に前後若しくはその一方の配管パイプの内径より
大きな径を有する捕獲器を設け、その捕獲器で上記冷凍
サイクル中に混在する比重の大きい物質を捕獲するよう
にしたものである。As a concrete means of the above, in a refrigeration cycle in which a compressor, a condenser, a dryer, a capillary tube, and an evaporator are sequentially connected in series by a pipe in an annular shape, between the discharge side of the compressor and the capillary tube. A trap having a diameter larger than the inner diameter of the front and rear pipes or one of the pipes is provided in the middle of the pipe, and the trap is used to trap a substance having a large specific gravity mixed in the refrigeration cycle.
【0014】また、圧縮機の吐出側とキャピラリチュー
ブの間に設けた捕獲器に対して、吐出側を上記捕獲器底
部に、他側を底部から離れた位置に設け、異物がキャピ
ラリチューブ側に流れてキャピラリチューブを詰らせる
ことがないようにしたものである。Further, with respect to the trap provided between the discharge side of the compressor and the capillary tube, the discharge side is provided at the bottom of the trap and the other side is provided at a position apart from the bottom so that foreign substances are present on the capillary tube side. It is designed so that it will not clog the capillary tube due to flow.
【0015】また、圧縮機吐出側とキャピラリチューブ
の間の配管途中に、あるいはドライヤより前方の配管途
中に、冷凍サイクル中に混入した鉄系異物を捕獲するた
めの永久磁石を配設し、且つ永久磁石の取付け位置は、
冷媒の正常な流れを妨げることのない、配管内壁よりも
内側に入らない位置としたものである。Further, a permanent magnet for capturing iron-based foreign matter mixed in the refrigeration cycle is provided in the middle of the pipe between the compressor discharge side and the capillary tube or in the middle of the pipe in front of the dryer, and The permanent magnet mounting position is
The position is such that it does not enter the inside of the pipe inner wall, which does not hinder the normal flow of the refrigerant.
【0016】[0016]
【作用】キャピラリチューブ詰りの主要因は、圧縮機摺
動部の摩耗粉や、摩耗粉が冷媒や冷凍機油と反応して生
成した物質である。現在、圧縮機摺動部の材質としては
鉄系が一般的であるため、鉄系異物を除去することは、
キャピラリチューブ詰り防止に効果的である。The main cause of the clogging of the capillary tube is the abrasion powder of the sliding portion of the compressor and the substance produced by the reaction of the abrasion powder with the refrigerant and the refrigerating machine oil. At present, iron-based foreign matter is generally used as the material of the sliding parts of the compressor.
Effective in preventing clogging of capillary tubes.
【0017】本発明では、圧縮機、凝縮器、ドライヤ、
キャピラリチューブ、蒸発器が配管によって順次環状に
接続された冷蔵庫の冷凍サイクルにおいて、圧縮機吐出
側と凝縮器の間の配管途中、あるいは凝縮器吐出側とキ
ャピラリチューブの間の配管途中に永久磁石を配設する
ことにより、圧縮機内から冷媒と共に吐出されて冷凍サ
イクル中に流出した冷凍機油に混入した鉄系異物を捕獲
し、鉄系異物がキャピラリチューブ内に流入して冷凍サ
イクルを詰らせることを防止する。In the present invention, a compressor, a condenser, a dryer,
In a refrigerator refrigeration cycle in which a capillary tube and an evaporator are sequentially connected in an annular shape by pipes, a permanent magnet is installed in the middle of the pipe between the compressor discharge side and the condenser or in the middle of the pipe between the condenser discharge side and the capillary tube. By arranging it, it captures the iron-based foreign matter mixed in the refrigerating machine oil discharged from the compressor together with the refrigerant and flowing out during the refrigeration cycle, and the iron-based foreign material flows into the capillary tube to clog the refrigeration cycle. Prevent.
【0018】また、圧縮機と凝縮器の間に捕獲器を設け
た場合には、鉄系異物や鉄系異物と冷凍機油の化学反応
生成物が凝縮器内に滞留することがなく、凝縮器の放熱
性能の低下を防止することができる。When the trap is provided between the compressor and the condenser, the iron-based foreign matter or the chemical reaction product of the iron-based foreign matter and the refrigerating machine oil does not stay in the condenser, and It is possible to prevent the heat radiation performance of the device from deteriorating.
【0019】また、永久磁石を円筒形状とし、配管途中
に設けた、配管内径よりも大きい内径を有する円筒形状
の捕獲器の内壁に設置することにより、冷媒の正常な流
れを確保する。さらに、永久磁石の内径を、捕獲器の両
端に接続された配管の内径よりも大きく確保することに
よって、磁石にある程度の鉄系異物が吸着されて堆積し
た状態でも配管内径以上の冷媒流路を確保することがで
きる。また、捕獲器の内径を拡大することにより、冷媒
の流速が遅くなるため、鉄系異物の吸着効果を向上する
ことができる。Further, the permanent magnet has a cylindrical shape and is installed on the inner wall of a cylindrical trap provided in the middle of the pipe and having an inner diameter larger than the inner diameter of the pipe to ensure a normal flow of the refrigerant. Further, by ensuring the inner diameter of the permanent magnet to be larger than the inner diameter of the pipe connected to both ends of the trap, even if a certain amount of iron-based foreign matter is adsorbed and accumulated on the magnet, the refrigerant flow path larger than the inner diameter of the pipe can be secured. Can be secured. Further, since the flow velocity of the refrigerant becomes slower by enlarging the inner diameter of the trap, it is possible to improve the effect of adsorbing the iron-based foreign matter.
【0020】また、永久磁石を内壁の断面形状がテーパ
形となる略円筒形状とし、且つ冷媒の流れに対して下流
側に行くにしたがって内径が細くなる向きに設置するこ
とにより、永久磁石内壁に吸着される鉄系異物が下流側
に行くにしたがって少なくなる状態では、鉄系異物が吸
着した状態の永久磁石内壁の内径が均一化され、流速の
遅い上流側の内壁に異物が局所的に堆積して狭くなるの
を防ぐことができる。Further, by disposing the permanent magnet in a substantially cylindrical shape in which the inner wall has a tapered cross-section, and the inner diameter thereof becomes smaller toward the downstream side with respect to the flow of the refrigerant, the inner wall of the permanent magnet is reduced. When the amount of iron-based foreign matter adsorbed decreases toward the downstream side, the inner diameter of the inner wall of the permanent magnet with the iron-based foreign matter attracted becomes uniform, and the foreign matter locally accumulates on the upstream inner wall where the flow velocity is slow. Can be prevented from becoming narrow.
【0021】また、圧縮機の吐出側配管途中に消音タン
クを備えた冷凍サイクルにおいて、略円筒形状の永久磁
石を消音タンクの内壁に設置することにより、既存の冷
凍サイクルに永久磁石のみを追加するだけの変更をすれ
ば良く、低コスト化が図れる。Further, in a refrigeration cycle equipped with a silencing tank in the middle of the discharge side pipe of the compressor, by installing a substantially cylindrical permanent magnet on the inner wall of the silencing tank, only the permanent magnet is added to the existing refrigeration cycle. Only the changes need to be made, and the cost can be reduced.
【0022】また、鉄系の凝縮器を用いた冷凍サイクル
において、凝縮器を磁化させることにより、鉄系異物を
凝縮器内で捕獲する。この場合には、異物が凝縮器内壁
に吸着された状態では、吸着されていない状態と比べ
て、冷媒の流れの抵抗の微小な増加となり得るが、永久
磁石を既存の冷凍サイクルに追加する必要がなく、既存
の冷凍サイクルをそのまま用いることができる。In a refrigeration cycle using an iron-based condenser, the iron-based foreign matter is captured in the condenser by magnetizing the condenser. In this case, when foreign matter is adsorbed on the inner wall of the condenser, the resistance of the refrigerant flow may increase slightly compared to when it is not adsorbed, but it is necessary to add a permanent magnet to the existing refrigeration cycle. Therefore, the existing refrigeration cycle can be used as it is.
【0023】また、冷媒中に塩素を含まないHFC系冷
媒を使用した冷凍サイクルにおいては、塩素を含むCF
CやHCFC系の冷媒を用いた場合と比べて、圧縮機摺
動部の潤滑性が低下して摩耗粉が増加するため、本発明
の効果が特に有効となる。Further, in a refrigeration cycle using an HFC type refrigerant containing no chlorine in the refrigerant, CF containing chlorine is used.
Compared with the case where a C or HCFC refrigerant is used, the lubricity of the compressor sliding portion is reduced and the amount of abrasion powder is increased, so that the effect of the present invention is particularly effective.
【0024】[0024]
【実施例】本発明の詳細を図1〜図7に示す実施例で説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described with reference to the embodiments shown in FIGS.
【0025】図1は本発明を備えた冷蔵庫等の冷凍サイ
クル系統説明図、図2は図1のA部詳細図、図3は図1
のA部詳細図であり図2とは異なる実施例示す図、図4
は図1のA部詳細相当図で図2、図3とは異なる実施例
を示す図、図5は図1のA部詳細相当図で図4と異なる
実施例を示す図、図6は本発明の鉄系排水凝縮器を用い
た冷凍サイクルの系統説明図、図7は図6とは異なる冷
凍サイクルに本発明を適用した例を示す説明図である。FIG. 1 is an explanatory view of a refrigeration cycle system such as a refrigerator equipped with the present invention, FIG. 2 is a detailed view of a portion A of FIG. 1, and FIG.
FIG. 4 is a detailed view of an A part of FIG.
2 is a diagram showing an embodiment different from those shown in FIGS. 2 and 3 in a view corresponding to details of part A in FIG. 1, FIG. 5 is a diagram showing an embodiment different from that in FIG. FIG. 7 is a system explanatory view of a refrigeration cycle using the iron-based drainage condenser of the invention, and FIG. 7 is an explanatory view showing an example in which the present invention is applied to a refrigeration cycle different from FIG.
【0026】先ず図1において、1は圧縮機、2は捕獲
器、3は凝縮器、4はドライヤ、5はキャピラリチュー
ブ、6は蒸発器、7は配管を示す。しかして上記項番1
〜6は順次配管7をもって直列にしかも環状に接続され
冷蔵庫等の冷凍サイクルを構成している。First, in FIG. 1, 1 is a compressor, 2 is a trap, 3 is a condenser, 4 is a dryer, 5 is a capillary tube, 6 is an evaporator, and 7 is a pipe. Then, the above item No. 1
6 are connected in series with a pipe 7 in series and in a ring form a refrigerating cycle such as a refrigerator.
【0027】次に図2において、捕獲器2の詳細を説明
する。図において2は捕獲器、7a、7bは配管であ
り、7aが圧縮機側に至り、7bがキャピラリチューブ
側に至る。そして、上記配管7aは捕獲器2の底部2a
近くで開放され、配管7bの開放部は捕獲器2aから離
れたところ、即ち配管7aの開放部より上方に位置して
いる。このことにより、配管7aより吐出された冷媒お
よび異物は底部2aに当たる。この時、冷媒は比重が液
体のときでも1.3以下であるのに対して、異物は鉄系
の場合には比重7.9、アルミ系の場合には2.7、銅
系の場合には9.0と非常に重いことより、これらの異
物は配管7b側に吸いこまれることなくこの捕獲器2a
底部に溜っていくものである。8は永久磁石であり、こ
の磁石8は冷凍サイクル中の冷媒および冷凍機油と反応
して異物を発生しないような材質を選ぶのが良い。先の
捕獲器2の底部2aに溜った鉄系異物9の内、小さいも
の或いは冷凍サイクル中の冷媒に乱れが生じたとき等、
捕獲器2で折角捕獲した異物が捕獲器2より飛び出して
しまうことも考えられるので、これをしっかり捕獲して
おくための手段として、先の永久磁石8が設けられてい
るものである。Next, the details of the trap 2 will be described with reference to FIG. In the figure, 2 is a trap, 7a and 7b are pipes, 7a reaches the compressor side, and 7b reaches the capillary tube side. The pipe 7a is the bottom 2a of the trap 2.
It is opened in the vicinity, and the open portion of the pipe 7b is located away from the trap 2a, that is, above the open portion of the pipe 7a. As a result, the refrigerant and foreign matter discharged from the pipe 7a hit the bottom 2a. At this time, the specific gravity of the refrigerant is 1.3 or less even when the specific gravity is liquid, while the foreign matter is 7.9 in the case of iron type, 2.7 in the case of aluminum type, and foreign in the case of copper type. Is very heavy at 9.0, these foreign substances are not sucked into the pipe 7b side and the trap 2a
It accumulates at the bottom. Reference numeral 8 is a permanent magnet, and it is preferable to select a material for the magnet 8 so as not to generate foreign matter by reacting with the refrigerant and the refrigerating machine oil in the refrigerating cycle. Of the iron-based foreign matter 9 accumulated on the bottom portion 2a of the previous trap 2, when a small one or when the refrigerant in the refrigeration cycle is disturbed,
Since it is conceivable that the foreign matter captured by the capture device 2 will suddenly fly out of the capture device 2, the above-mentioned permanent magnet 8 is provided as a means for securely capturing the foreign substance.
【0028】また、この捕獲器2を図1に示すごとく圧
縮機1の近くに設け、消音タンクとして使っても良いも
のである。The catcher 2 may be provided near the compressor 1 as shown in FIG. 1 and used as a muffling tank.
【0029】図3は図2とは異なる実施例を示すもので
ある。この図に示すものは配管7aと配管7bの開放部
をオーバーラップさせ、一旦配管7aより冷媒と一緒に
吐出された異物が配管7bに吸いこまれることなく、捕
獲器2内に溜りやすくしたものである。勿論、永久磁石
8を設ければこの効果はさらに確実なものとすることが
できるものである。FIG. 3 shows an embodiment different from that shown in FIG. What is shown in this figure is one in which the open portions of the pipe 7a and the pipe 7b overlap so that the foreign matter once discharged together with the refrigerant from the pipe 7a is not sucked into the pipe 7b and easily collects in the trap 2. is there. Of course, if the permanent magnet 8 is provided, this effect can be further secured.
【0030】図4、図5には内部中空の永久磁石8を捕
獲器2内に組込み、この中空部8aを冷媒が流れるよう
にしたものである。この場合は比重差の作用により冷媒
より重い異物が捕獲器2に効率的に溜る上、永久磁石8
との接触面積が大きくとれることより捕獲率が一段と向
上するものである。In FIGS. 4 and 5, a permanent magnet 8 having a hollow inside is incorporated in the trap 2 so that the refrigerant can flow through the hollow portion 8a. In this case, foreign matter heavier than the refrigerant is efficiently accumulated in the trap 2 by the action of the difference in specific gravity, and the permanent magnet 8
Since the contact area with the large area can be taken, the capture rate is further improved.
【0031】図4に示すものは、先の永久磁石8の内径
を均一にしたものであるが、図5に示すものは冷媒の下
流側の径を小さくしたものである。下流側の径をd1<
d2の如く小さくしたのは、この種形状の捕獲器であっ
た場合、配管7aの開放部近くに異物が多く集まる分、
径を大きくしたものである。こうすることにより、鉄系
異物9を吸着した状態の内径を同じくすることができる
ものである。In FIG. 4, the inner diameter of the permanent magnet 8 is made uniform, while in FIG. 5, the downstream diameter of the refrigerant is made small. The diameter on the downstream side is d 1 <
In the case of the trap of this kind, the size reduced as d 2 is because a large amount of foreign matters gather near the open portion of the pipe 7a.
It has a large diameter. By doing so, the inner diameter can be made the same when the iron-based foreign matter 9 is adsorbed.
【0032】図6は凝縮器が鉄材である冷凍サイクルに
関する例であり、凝縮器3を磁化させて捕獲器の代用と
する例である。磁化した鉄系凝縮器3は冷凍サイクル中
の鉄系異物9を吸着すると共に、凝縮器3周辺に存在す
る鉄材に対しても磁力が働くため、凝縮器3周辺に微小
な鉄系の物体が存在し、磁化した鉄系凝縮器3に吸着す
るのを防止する必要性がある場合には、通気性に優れ、
凝縮器の放熱性能を低下させない熱伝導率の高い素材を
用いた磁気遮断膜10で凝縮器を包み込む。FIG. 6 is an example of a refrigeration cycle in which the condenser is an iron material, and is an example in which the condenser 3 is magnetized to substitute for the trap. The magnetized iron-based condenser 3 adsorbs the iron-based foreign matter 9 in the refrigeration cycle, and the magnetic force acts on the iron material existing in the vicinity of the condenser 3, so that a small iron-based object is generated around the condenser 3. When it is present and needs to be prevented from adsorbing to the magnetized iron-based condenser 3, it has excellent breathability,
The condenser is wrapped with a magnetic blocking film 10 made of a material having a high thermal conductivity that does not deteriorate the heat dissipation performance of the condenser.
【0033】図7は、冷凍サイクル中にラジエータ機能
を有する排水凝縮器が設けられ、且つその排水凝縮器1
1が鉄材である冷凍サイクルに関する例であり、図6の
実施例と同様に、排水凝縮器11を磁化させて鉄系異物
9を吸着させるものである。FIG. 7 shows that a drainage condenser having a radiator function is provided in the refrigeration cycle, and the drainage condenser 1 thereof is provided.
1 is an example of a refrigeration cycle in which an iron material is used, and like the embodiment of FIG. 6, the drainage condenser 11 is magnetized to adsorb the iron-based foreign matter 9.
【0034】また、上記捕獲器2を備えた冷凍サイクル
の冷媒に塩素を含まないHFC−134aなどのHFC
系冷媒を用いたものであると、本発明の効果はより顕著
に現われるものである。In addition, HFC such as HFC-134a, which does not contain chlorine in the refrigerant of the refrigeration cycle equipped with the trap 2 described above.
The effect of the present invention is more prominent when a system refrigerant is used.
【0035】図6および図7の実施例では、鉄系異物9
を吸着した状態では、吸着していない状態と比べて冷媒
の流れの微小な抵抗増加となるが、既存の冷凍サイクル
に磁気遮断膜10を必要に応じて追加するだけの変更で
済むため、既存の冷凍サイクルの加工を全く必要としな
い。また、捕獲器2よりも吸着表面積を多く確保できる
ため、吸着効果が向上する。なお、凝縮器を磁化する工
程については、凝縮器を磁化した後に冷凍サイクルに組
み込むと冷凍サイクル阻害物質が増加する恐れがあるた
め、冷凍サイクル完成後に磁化させる。In the embodiment of FIGS. 6 and 7, the iron-based foreign substance 9
In the state in which is adsorbed, the resistance of the flow of the refrigerant is slightly increased compared to the state in which it is not adsorbed. No refrigeration cycle processing is required. Further, since a larger adsorption surface area can be secured as compared with the trap 2, the adsorption effect is improved. Regarding the step of magnetizing the condenser, if the condenser is magnetized and then incorporated into the refrigeration cycle, the refrigeration cycle inhibiting substance may increase. Therefore, the condenser is magnetized after completion of the refrigeration cycle.
【0036】[0036]
【発明の効果】以上のように、本発明は冷蔵庫の冷凍サ
イクルにおいて、キャピラリチューブの前方経路途中で
鉄系異物を捕獲して、キャピラリチューブ内に鉄系異物
が流入しないように冷凍サイクルを構成したものであ
り、鉄系異物によるキャピラリチューブ詰りを防止する
ことができる。さらに、捕獲器を冷媒の流れの抵抗とな
らない構造とし、捕獲器自体でのサイクル目詰りを防止
して、冷凍サイクルの信頼性を向上させることができ
る。As described above, according to the present invention, in the refrigerating cycle of the refrigerator, the refrigeration cycle is configured so that the iron-based foreign matter is trapped in the forward path of the capillary tube so that the iron-based foreign matter does not flow into the capillary tube. It is possible to prevent the clogging of the capillary tube due to the iron-based foreign matter. Furthermore, the trap has a structure that does not resist the flow of the refrigerant, and it is possible to prevent cycle clogging in the trap itself and improve the reliability of the refrigeration cycle.
【図1】本発明を備えた冷蔵庫等の冷凍サイクル系統説
明図。FIG. 1 is an explanatory diagram of a refrigeration cycle system such as a refrigerator equipped with the present invention.
【図2】図1のA部詳細図。FIG. 2 is a detailed view of part A in FIG.
【図3】図1のA部詳細図であり図2とは異なる実施例
を示す図。FIG. 3 is a detailed view of an A portion of FIG. 1, showing an embodiment different from that of FIG.
【図4】図1のA部詳細相当図で、図2、図3とは異な
る実施例を示す図。FIG. 4 is a view corresponding to details of part A in FIG. 1, showing an embodiment different from those in FIGS. 2 and 3;
【図5】図1のA部詳細相当図で、図4と異なる実施例
を示す図。5 is a diagram corresponding to detail A of FIG. 1, showing an embodiment different from FIG. 4;
【図6】本発明の、鉄系排水凝縮器を用いた冷凍サイク
ルの系統説明図。FIG. 6 is a system explanatory view of a refrigeration cycle using an iron-based drainage condenser of the present invention.
【図7】図6とは異なる冷凍サイクルに本発明を適用し
た例を示す説明図。7 is an explanatory diagram showing an example in which the present invention is applied to a refrigeration cycle different from that in FIG.
【図8】従来例の冷凍サイクルの系統説明図。FIG. 8 is a system explanatory view of a refrigeration cycle of a conventional example.
【図9】図8の項番23部詳細説明図。FIG. 9 is a detailed explanatory diagram of the item number 23 in FIG. 8;
1…圧縮機、 2…捕獲器、 3…凝縮器、 4…ドライヤ、 5…キャピラリチューブ、 6…蒸発器、 7…配管、 8…永久磁石、 9…鉄系異物、 10…磁気遮断膜、 11…排水凝縮器。 DESCRIPTION OF SYMBOLS 1 ... Compressor, 2 ... Capture device, 3 ... Condenser, 4 ... Dryer, 5 ... Capillary tube, 6 ... Evaporator, 7 ... Piping, 8 ... Permanent magnet, 9 ... Iron system foreign material, 10 ... Magnetic blocking film, 11 ... Drainage condenser.
Claims (9)
ューブ、蒸発器が配管によって順次直列に環状に接続さ
れた冷凍サイクルにおいて、前記圧縮機吐出側とキャピ
ラリチューブとの間の配管途中に、前後若しくはその一
方の配管パイプ内径より大きな径を有する捕獲器を設
け、その捕獲器で上記冷凍サイクル中に混在する比重の
大きい物質を捕獲するようにしたことを特徴とする冷蔵
庫等の冷凍サイクル。1. In a refrigeration cycle in which a compressor, a condenser, a dryer, a capillary tube, and an evaporator are sequentially connected in series in an annular shape by a pipe, in the middle of the pipe between the discharge side of the compressor and the capillary tube, Alternatively, a refrigerating cycle such as a refrigerator characterized in that a trap having a diameter larger than the inner diameter of one of the piping pipes is provided to trap a substance having a large specific gravity mixed in the refrigerating cycle.
に設けた捕獲器に対し、吐出側を上記捕獲器底部に、他
側を底部から離れた位置に設けたことを特徴とする請求
項1記載の冷蔵庫等の冷凍サイクル。2. The trap provided between the compressor discharge side and the capillary tube, wherein the discharge side is provided at the bottom of the trap and the other side is provided at a position apart from the bottom. Refrigeration cycle such as the refrigerator described in 1.
間に設けた捕獲器を用い、サイクル中の鉄系異物を磁力
を利用して捕獲するようにしたことを特徴とする請求項
1記載の冷蔵庫等の冷凍サイクル。3. A capture device provided between the discharge side of the compressor and the capillary tube is used to capture the iron-based foreign matter in the cycle by using magnetic force. Refrigerating cycle such as refrigerator.
イプをオーバーラップさせ、吐出側パイプより出た異物
を含む冷媒が直接吸込側パイプに入らないようにしたこ
とを特徴とする請求項1記載の冷蔵庫等の冷凍サイク
ル。4. The discharge side pipe connected to the trap and the suction side pipe are overlapped to prevent the refrigerant containing the foreign matter from the discharge side pipe from directly entering the suction side pipe. Refrigeration cycle such as the refrigerator described.
し、その中空部を異物を含む冷媒が流れるようにしたこ
とを特徴とする請求項1記載の冷蔵庫等の冷凍サイク
ル。5. A refrigerating cycle for a refrigerator or the like according to claim 1, wherein the permanent magnet provided in the trap has a hollow interior, and a refrigerant containing foreign matter flows through the hollow portion.
流れに対して下流側にいくに従って小さくするようにし
たことを特徴とする請求項1および5項記載の冷蔵庫等
の冷凍サイクル。6. A refrigerating cycle for a refrigerator or the like according to claim 1 or 5, characterized in that the diameter of the inner hollow hole provided in the permanent magnet is made smaller toward the downstream side with respect to the flow of the refrigerant. .
れた消音タンクとして利用したことを特徴とする請求項
1記載の冷蔵庫等の冷凍サイクル。7. The refrigerating cycle for a refrigerator or the like according to claim 1, wherein the trap is used as a muffling tank provided in the middle of the discharge side pipe of the compressor.
C−134aなどのHFC系冷媒を用いたことを特徴と
する請求項1および3項記載の冷蔵庫等の冷凍サイク
ル。8. A refrigerant for a refrigeration cycle equipped with a trap is HF.
A refrigerating cycle for a refrigerator or the like according to claim 1 or 3, wherein an HFC-based refrigerant such as C-134a is used.
体若しくはその一部を捕獲器とすべく該鉄系凝縮器を磁
化させたことを特徴とする冷蔵庫等の冷凍サイクル。9. A refrigerating cycle for a refrigerator or the like, characterized in that the material of the condenser is iron-based, and the iron-based condenser is magnetized so that the whole or a part of the condenser serves as a trap.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4942695A JPH08247585A (en) | 1995-03-09 | 1995-03-09 | Refrigerating cycle for refrigerator or the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4942695A JPH08247585A (en) | 1995-03-09 | 1995-03-09 | Refrigerating cycle for refrigerator or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08247585A true JPH08247585A (en) | 1996-09-27 |
Family
ID=12830777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4942695A Pending JPH08247585A (en) | 1995-03-09 | 1995-03-09 | Refrigerating cycle for refrigerator or the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08247585A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6392298B1 (en) * | 2000-02-28 | 2002-05-21 | Ericsson Inc. | Functional lid for RF power package |
JP2007200957A (en) * | 2006-01-24 | 2007-08-09 | Nec Corp | Liquid-cooled heat dissipation apparatus |
JP2010014300A (en) * | 2008-07-02 | 2010-01-21 | Panasonic Corp | Refrigerating device or refrigerator |
JP2015161497A (en) * | 2014-02-28 | 2015-09-07 | シャープ株式会社 | Refrigeration cycle device |
-
1995
- 1995-03-09 JP JP4942695A patent/JPH08247585A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6392298B1 (en) * | 2000-02-28 | 2002-05-21 | Ericsson Inc. | Functional lid for RF power package |
JP2007200957A (en) * | 2006-01-24 | 2007-08-09 | Nec Corp | Liquid-cooled heat dissipation apparatus |
JP2010014300A (en) * | 2008-07-02 | 2010-01-21 | Panasonic Corp | Refrigerating device or refrigerator |
JP2015161497A (en) * | 2014-02-28 | 2015-09-07 | シャープ株式会社 | Refrigeration cycle device |
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