JPH10237421A - Refrigeration system with scroll compressor - Google Patents
Refrigeration system with scroll compressorInfo
- Publication number
- JPH10237421A JPH10237421A JP9043436A JP4343697A JPH10237421A JP H10237421 A JPH10237421 A JP H10237421A JP 9043436 A JP9043436 A JP 9043436A JP 4343697 A JP4343697 A JP 4343697A JP H10237421 A JPH10237421 A JP H10237421A
- Authority
- JP
- Japan
- Prior art keywords
- scroll
- scroll compressor
- polyphenylene sulfide
- compressor
- scroll member
- 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
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rotary Pumps (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷媒であるハイド
ロフルオロカーボンと潤滑油であるポリビニルエーテル
系油の混合流体を、スクロール式圧縮機を含む冷凍回路
に循環させるスクロール式圧縮機を有する冷凍システム
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating system having a scroll type compressor for circulating a mixed fluid of hydrofluorocarbon as a refrigerant and polyvinyl ether oil as a lubricating oil through a refrigerating circuit including the scroll type compressor. .
【０００２】[0002]
【従来の技術】従来、冷凍回路は、図２に示すように圧
縮機１１,冷暖房を切り換える四路切換弁１２,凝縮器１
３,膨張装置としてのキャピラリチューブ１４,蒸発器１
５を順次配管１６a〜１６fで接続してなる。上記圧縮機
１１は、スクロール式圧縮機であり、耐摩耗性を改善し
たスクロール式圧縮機として、従来、図４に示すような
要部を持つものが知られている(特開平７−２５２４１
０号公報)。この圧縮機は、基板２３に渦巻き壁２４を
突設して,ケーシング２１内に固定される固定スクロー
ル部材２２と、基板２６に上記渦巻き壁２４に摺接する
渦巻き壁２７を突設して,上記固定スクロール部材２２
に対向して偏心配置されるとともに回転軸２８の回りに
駆動される可動スクロール部材２５(図１参照)とからな
る。そして、可動スクロール部材２５の回転に伴って、
外周の吸入口２９から冷媒ガスを吸い込み、両渦巻き壁
２４,２７の間に封じ込めつつ次第に圧縮して中心の吐
出口３０から吐出するようになっている。2. Description of the Related Art Conventionally, a refrigeration circuit has a compressor 11, a four-way switching valve 12 for switching between cooling and heating, and a condenser 1 as shown in FIG.
3. Capillary tube 14 as expansion device, evaporator 1
5 are sequentially connected by pipes 16a to 16f. The compressor 11 is a scroll-type compressor, and a scroll-type compressor having a main part as shown in FIG. 4 is conventionally known as a scroll-type compressor having improved wear resistance (Japanese Patent Laid-Open No. 7-25241).
No. 0). In this compressor, a spiral wall 24 protrudes from a substrate 23, and a fixed scroll member 22 fixed in a casing 21 and a spiral wall 27 slidingly contacting the spiral wall 24 on a substrate 26 protrude. Fixed scroll member 22
And a movable scroll member 25 (see FIG. 1) which is eccentrically arranged in opposition to and is driven around a rotary shaft 28. Then, with the rotation of the movable scroll member 25,
Refrigerant gas is sucked in from the suction port 29 on the outer periphery, is gradually compressed while being sealed between the spiral walls 24, 27, and is discharged from the central discharge port 30.
【０００３】両スクロール部材２２,２５が摺接する部
分、即ち一方の基板２３,２６に当接する他方の渦巻き
壁２７,２４の各頂部には、この頂部に設けられた溝に
気密を保持する渦巻き状のチップシール材３１が嵌装さ
れている。上記チップシール材３１は、耐熱性,耐摩耗
性が要求されることから、流動温度３２０℃以上をもつ
液晶ポリエステル４０〜９０重量％、フッ素樹脂５〜２
５重量％、炭素繊維５〜３０重量％を含有する樹脂で作
られる。At the portion where the scroll members 22 and 25 are in sliding contact with each other, that is, at the top of each of the other spiral walls 27 and 24 that abut on one of the substrates 23 and 26, a spiral that keeps airtight is provided in a groove provided at the top. A chip seal material 31 in the shape of is fitted. Since the chip seal material 31 is required to have heat resistance and abrasion resistance, 40 to 90% by weight of a liquid crystal polyester having a flow temperature of 320 ° C. or more,
It is made of a resin containing 5% by weight and 5 to 30% by weight of carbon fiber.
【０００４】さて、図２の冷凍回路を循環させられる冷
媒には、特定フロンといわれるクロロフルオロカーボン
(CFC)があったが、成層圏で光分解して生じる塩素がオ
ゾン層を破壊するため、その生産は既に全廃されてお
り、塩素の一部を水素で置換していることでオゾン層を
破壊しにくいハイドロクロロフルオロカーボン(HCFC)に
代替されている。さらには、塩素を含まないことでオゾ
ン層を破壊しないハイドロフルオロカーボン(HFC)の使
用が最終目標とされている。一方、冷媒は、一般に圧縮
機等の摺動部を潤滑するための油が混合されて冷凍回路
を循環させられるが、ＣＦＣ,ＨＣＦＣに代えて上記代
替フロンを冷媒に用いると、配管接続部などに介装され
たゴム製のシール材が、異常に膨潤して嵌装溝に押し付
けられ、応力集中により破損することが報告されてい
る。The refrigerant circulated through the refrigeration circuit shown in FIG. 2 includes chlorofluorocarbon called specific freon.
(CFC), but chlorine is produced by photolysis in the stratosphere, which destroys the ozone layer, so its production has already been completely abolished, and the ozone layer is destroyed by replacing part of the chlorine with hydrogen. It has been replaced with hydrochlorofluorocarbon (HCFC), which is difficult to use. Furthermore, the ultimate goal is to use hydrofluorocarbons (HFCs) that do not destroy the ozone layer by not containing chlorine. On the other hand, refrigerant is generally mixed with oil for lubricating sliding parts of a compressor or the like and is circulated through a refrigeration circuit. However, when the above-mentioned alternative Freon is used as a refrigerant instead of CFC and HCFC, a pipe connection part and the like are used. It has been reported that a rubber sealing material interposed in the above-mentioned structure swells abnormally, is pressed against the fitting groove, and is broken by stress concentration.
【０００５】[0005]
【発明が解決しようとする課題】ところが、上記公報に
記載のチップシール材を含む従来のシール材は、冷媒と
潤滑油の組み合わせが、ＣＦＣ,ＨＣＦＣと鉱油,アルキ
ルベンゼン油,ポリオレフィン油等の炭化水素系油、あ
るいはＨＦＣとポリアルキレングリコール油,ポリオー
ルエステル油であるものが対象である。ここで、ＨＦＣ
を使用する場合、一般の冷凍システムにおいては、これ
と相溶する潤滑油を使用しなければならず、その従来例
としては、例えば、ポリアルキレングリコール油(特開
平１−２５９０９,特開平１−２６９０９４,特開平１−
２５９０９５,特開平２−５０２３８５各号公報)、ポリ
オールエステル油(特開平３−５０５６０２,特開平３−
１２８９９１,特開平３−８８８９２,特開平３−２００
８９６各号公報)、カーボネート油(特開平３−２４７６
９５号公報)、フッ素油(特開平３−２２０２９６号公
報)、ポリビニルエーテル油(特開平６−１２８５７８号
公報)などがある。しかし、ポリアルキレングリコール
油は、電気特性が低いため、モータを内蔵した圧縮機に
は使用できない。ポリオールエステル油,カーボネート
油は、油の加水分解,工程副資材の影響によるキャピラ
リチューブの詰まりの発生があり、フッ素油は、高価で
あるうえ、アルミ摺動材が腐食するため使用できないと
いった問題がある。However, in the conventional sealing materials including the chip sealing material described in the above publication, the combination of the refrigerant and the lubricating oil is such that CFC, HCFC and hydrocarbon such as mineral oil, alkylbenzene oil, polyolefin oil and the like are used. Base oils, or those which are HFC and polyalkylene glycol oils or polyol ester oils are the targets. Where HFC
When using a refrigeration system, a general refrigeration system must use a lubricating oil that is compatible therewith. As a conventional example, for example, a polyalkylene glycol oil (JP-A-1-25909, JP-A-1-25909) 269094, JP-A-1-
259095, JP-A-2-502385), polyol ester oil (JP-A-3-505602, JP-A-3-505602).
128991, JP-A-3-88892, JP-A-3-200
896), carbonate oils (JP-A-3-2476)
No. 95), fluorine oil (JP-A-3-220296), polyvinyl ether oil (JP-A-6-128578) and the like. However, polyalkylene glycol oil cannot be used for a compressor having a built-in motor because of its low electric characteristics. Polyol ester oils and carbonate oils have problems such as hydrolysis of oils and clogging of capillary tubes due to the influence of process auxiliary materials.Fluorine oils are expensive and cannot be used due to corrosion of aluminum sliding materials. is there.
【０００６】そこで、ＨＦＣを冷媒に、上記潤滑油のよ
うな問題がない,吸水性の高いポリビニルエーテル系油
を潤滑油に夫々用いた混合流体に対するシール材が必須
になるが、従来、このようなシール材ついて記載,開示
したものはなかった。つまり、冷媒であるＨＦＣは、Ｈ
ＣＦＣ(R22)に比して極性が大きくて吸水しやすく、潤
滑油であるポリビニルエーテル系油も、炭化水素系油に
比して極性が大きくて吸水しやすいため、チップシール
材の主成分が、上記公報に記載の如く液晶ポリエステル
であると、上記冷媒と潤滑油の混合流体に常に曝されて
これに含まれ得る水分の作用で強度が低下する虞れがあ
る。また、他に記載のパーフルオロアルコキシ樹脂は、
冷媒による膨潤が著しく、成形時の初期物性が保てない
虞れがある。換言すれば、上記従来のチップシール材
は、ＨＣＦＣの冷媒と炭化水素系の潤滑油の混合流体下
では、耐熱性,耐摩耗性を発揮しても、本発明が狙いと
する冷媒と潤滑油の組み合わせには、必ずしも適すると
は言えないのである。また、他のポリエーテルエーテル
ケトン樹脂は、高価なうえ、成形時の流動距離が短いた
め、業務用のスクロールへの使用は困難である。Therefore, a sealing material for a mixed fluid using HFC as a refrigerant and a highly water-absorbing polyvinyl ether-based oil as a lubricating oil, which does not have the same problems as the above-mentioned lubricating oils, is indispensable. There was no description or disclosure of a suitable sealing material. That is, HFC as a refrigerant is HFC
Since the polarity is large compared to CFC (R22) and easy to absorb water, and the polyvinyl ether oil, which is a lubricating oil, has a large polarity and easy to absorb water compared to hydrocarbon oil, the main component of the tip seal material is However, if the liquid crystal polyester is a liquid crystalline polyester as described in the above-mentioned publication, there is a possibility that the strength is reduced due to the action of moisture that can be constantly exposed to the mixed fluid of the refrigerant and the lubricating oil. Further, other described perfluoroalkoxy resin,
There is a possibility that swelling due to the refrigerant is remarkable and initial physical properties at the time of molding cannot be maintained. In other words, the above-mentioned conventional tip sealant exhibits the heat resistance and the abrasion resistance under the mixed fluid of the HCFC refrigerant and the hydrocarbon-based lubricating oil. Is not always suitable for the combination of. In addition, other polyetheretherketone resins are expensive and have a short flow distance during molding, so that it is difficult to use them for commercial scrolls.
【０００７】そこで、本発明の目的は、ハイドロフルオ
ロカーボンの冷媒とポリビニルエーテル系の潤滑油の混
合流体に最適のチップシール材をもつスクロール式圧縮
機を有する冷凍システムを提供することにある。It is an object of the present invention to provide a refrigeration system having a scroll compressor having a tip seal material most suitable for a mixed fluid of a hydrofluorocarbon refrigerant and a polyvinyl ether-based lubricating oil.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明は、スクロール式圧縮機,凝縮器,膨
張装置,蒸発器を順次配管で接続した冷凍回路に、冷媒
であるハイドロフルオロカーボンと潤滑油として４０℃
における動粘度が３０〜１００センチストークスを有す
るポリビニルエーテル系油の混合流体を循環させるスク
ロール式圧縮機を有する冷凍システムにおいて、上記ス
クロール式圧縮機のスクロール部材のチップシール材
は、ポリフェニレンサルファイド樹脂を主成分とするこ
とを特徴とする。In order to achieve the above-mentioned object, the invention of claim 1 is directed to a refrigerating circuit in which a scroll compressor, a condenser, an expansion device, and an evaporator are sequentially connected by piping. 40 ° C as fluorocarbon and lubricating oil
In a refrigeration system having a scroll compressor that circulates a mixed fluid of polyvinyl ether-based oil having a kinematic viscosity of 30 to 100 centistokes, a tip seal material of a scroll member of the scroll compressor mainly includes polyphenylene sulfide resin. It is characterized as a component.
【０００９】発明者らは、上記冷媒と潤滑油の混合流体
を冷凍回路に循環させつつスクロール式圧縮機のチップ
シール材料について鋭意研究を重ね、その結果、上記素
材が最適であることを見出した。即ち、上記チップシー
ル材の主成分であるポリフェニレンサルファイド樹脂(P
PS)は、液晶ポリエステルなどに比して加水分解されに
くいから、共に吸水しやすい冷媒のハイドロフルオロカ
ーボンと潤滑油のポリビニルエーテル系油が、多少の水
分を含んでいても、この水分の作用で強度が低下するこ
とがなく、スクロール式圧縮機の信頼性を高めることが
できる。The present inventors have conducted intensive studies on the tip seal material of the scroll compressor while circulating the mixed fluid of the refrigerant and the lubricating oil in the refrigeration circuit, and as a result, have found that the material is optimal. . That is, polyphenylene sulfide resin (P
PS) is less likely to be hydrolyzed than liquid crystal polyester, etc., so even if the refrigerant fluorofluorocarbon and the lubricating oil polyvinyl ether-based oil that both easily absorb water contain some moisture, the strength of the action of this moisture , And the reliability of the scroll compressor can be increased.
【００１０】請求項２の発明に係る冷凍システムのスク
ロール式圧縮機は、上記チップシール材が、ポリフェニ
レンサルファイド樹脂７０重量％以上、ポリテトラフル
オロエチレン樹脂１〜１０重量％、ポリアクリルニトリ
ル系炭素繊維１０〜２０重量％を含有することを特徴と
する。主成分であるポリフェニレンサルファイド樹脂
は、上述の如く冷媒および潤滑油に含まれ得る水分に対
して強度が低下せず、ポリテトラフルオロエチレン樹脂
は、摩擦係数が小さいので摺動抵抗を低減し、ポリアク
リルニトリル系炭素繊維は、強度と耐摩耗性を向上させ
る。従って、チップシール材の耐久性が一層向上して、
スクロール式圧縮機の信頼性をより高めることができ
る。According to a second aspect of the present invention, in the scroll compressor of the refrigeration system, the tip sealing material is 70% by weight or more of polyphenylene sulfide resin, 1 to 10% by weight of polytetrafluoroethylene resin, and polyacrylonitrile-based carbon fiber. It is characterized by containing 10 to 20% by weight. As described above, polyphenylene sulfide resin, which is a main component, does not decrease in strength with respect to water that can be contained in refrigerant and lubricating oil, and polytetrafluoroethylene resin has a small coefficient of friction, so that sliding resistance is reduced. The acrylonitrile-based carbon fiber improves strength and wear resistance. Therefore, the durability of the tip seal material is further improved,
The reliability of the scroll compressor can be further improved.
【００１１】[0011]
【発明の実施の形態】以下、本発明を図示の実施の形態
により詳細に説明する。図１(Ａ)は、本発明のスクロー
ル式圧縮機の可動スクロール部材の斜視図であり、この
可動スクロール部材２５は、チップシール材１を除いて
図４で述べたものと同じ構成なので、同じ部材には同一
番号を付して説明を省略する。また、上記可動スクロー
ル部材２５に対向して摺接する固定スクロール部材２２
(図４参照)の渦巻き壁２４の頂部にも、同じチップシー
ル材１(図示せず)が嵌装されている。上記スクロール圧
縮機は、図２で述べた冷凍回路の圧縮機１１として用い
られ、冷媒であるハイドロフルオロカーボン(HFC)と,潤
滑油として４０℃における動粘度が３０〜１００センチ
ストークスを有するポリビニルエーテル系油との混合流
体を上記冷凍回路に循環させて、冷凍システムを構成し
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. FIG. 1A is a perspective view of a movable scroll member of the scroll compressor of the present invention. Since the movable scroll member 25 has the same configuration as that shown in FIG. The members are assigned the same reference numerals and the description is omitted. Further, the fixed scroll member 22 slidingly opposed to the movable scroll member 25
The same tip seal material 1 (not shown) is fitted to the top of the spiral wall 24 (see FIG. 4). The scroll compressor is used as the compressor 11 of the refrigeration circuit described with reference to FIG. 2, and uses a hydrofluorocarbon (HFC) as a refrigerant and a polyvinyl ether-based lubricant having a kinematic viscosity of 30 to 100 centistokes at 40 ° C. as a lubricating oil. A mixed fluid with oil is circulated through the refrigeration circuit to constitute a refrigeration system.
【００１２】上記チップシール材１は、図１(Ｂ)に示す
ように、渦巻き壁２７の頂部の溝２に嵌装されるととも
に、主成分としてポリフェニレンサルファイド樹脂７０
重量％以上、ポリテトラフルオロエチレン樹脂１〜１０
重量％、ポリアクリルニトリル系炭素繊維１０〜２０重
量％を含有する材料からなる。As shown in FIG. 1B, the tip sealing material 1 is fitted into the groove 2 at the top of the spiral wall 27 and has a polyphenylene sulfide resin 70 as a main component.
% By weight or more, polytetrafluoroethylene resin 1 to 10
It is composed of a material containing 10 to 20% by weight of polyacrylonitrile-based carbon fiber.
【００１３】上記構成のチップシール材１をもつスクロ
ール式圧縮機１１は、図２の冷凍回路において次のよう
に作用する。冷媒であるハイドロフルオロカーボン(HF
C)と,潤滑油であるポリビニルエーテル系油との混合流
体は、圧縮機１１で圧縮されて高温高圧のガスとなって
配管１６aに吐出され、配管１６bを経て凝縮器１３で放
熱しつつ凝縮して液となり、次いで配管１６cを経てキ
ャピラリチューブ１４で断熱膨張し、さらに配管１６d
を経て蒸発器１５で吸熱しつつ蒸発して低温低圧のガス
となった後、配管１６e,１６fを経て圧縮機１１に戻
る。The scroll compressor 11 having the above-structured chip seal material 1 operates as follows in the refrigeration circuit of FIG. Hydrofluorocarbon (HF
A mixed fluid of C) and a polyvinyl ether-based oil, which is a lubricating oil, is compressed by the compressor 11 to be a high-temperature and high-pressure gas, discharged to the pipe 16a, and condensed while radiating heat in the condenser 13 through the pipe 16b. To a liquid, then adiabatically expanded in the capillary tube 14 via the pipe 16c, and
Then, after evaporating while absorbing heat in the evaporator 15 to form a low-temperature low-pressure gas, the gas returns to the compressor 11 via the pipes 16e and 16f.
【００１４】ここで、冷媒であるＨＦＣは、一般的従来
冷媒であるＨＣＦＣ(Ｒ２２)に比して極性が大きくて吸
水しやすく、潤滑油であるポリビニルエーテル系油も、
炭素水素系油に比して極性が大きくて吸水しやすいた
め、多少の水分を含んでいる場合がある。この場合、水
分は、混合流体に常に曝されるスクロール圧縮機１１の
チップシール材１にも作用するが、チップシール材１
は、主成分がポリフェニレンサルファイド樹脂であるの
で水分が作用しても強度が低下しない。また、チップシ
ール材１の成分であるポリテトラフルオロエチレン樹脂
は、摩擦係数が小さいのでスクロール部材との摺動抵抗
を低減し、同じく成分であるポリアクリルニトリル系炭
素繊維は、強度と耐摩耗性を向上させる。従って、チッ
プシール材１の耐久性が向上して、スクロール式圧縮機
１１がメインテナンスなしで長期間使用でき、スクロー
ル式圧縮機１１の信頼性を大幅に高めることができる。Here, HFC, which is a refrigerant, has a larger polarity and is easier to absorb water than HCFC (R22), which is a general conventional refrigerant, and polyvinyl ether oil which is a lubricating oil is also used.
Since it has a higher polarity and is easier to absorb water than hydrocarbon oils, it may contain some water. In this case, the moisture also acts on the tip seal material 1 of the scroll compressor 11 which is constantly exposed to the mixed fluid.
Since the main component is polyphenylene sulfide resin, the strength does not decrease even when moisture acts. The polytetrafluoroethylene resin, which is a component of the tip seal material 1, has a small friction coefficient, so that the sliding resistance with the scroll member is reduced. The polyacrylonitrile-based carbon fiber, which is also a component, has strength and abrasion resistance. Improve. Therefore, the durability of the tip seal material 1 is improved, the scroll compressor 11 can be used for a long period of time without maintenance, and the reliability of the scroll compressor 11 can be greatly increased.
【００１５】図４は、２種の冷媒と潤滑油の混合流体に
曝される上記組成のチップシール材１の摺動面圧と摩耗
量の関係についての実験結果を示す図であり、破線は従
来のＨＣＦＣと炭化水素系油の混合流体を、実線は本発
明のＨＦＣとポリビニルエーテル系油の混合流体を示し
ている。図から明らかなように、ポリフェニレンサルフ
ァイド(PPS)樹脂を主成分とするチップシール材は、従
来の混合流体中では、1.8％と大きく膨潤して物性が低
下するため、摺動性が悪化して摩耗量が大きい。一方、
本発明の混合流体中では、0.4％と適度に膨潤して、シ
ール性が増すとともに、摺動性も悪化せず摩耗量が小さ
い。このことから、ポリフェニレンサルファイド樹脂を
主成分とする本発明のチップシール材は、冷媒のＨＦＣ
と潤滑油のポリビニルエーテル系油の混合流体に好適で
あることが分かる。なお、本発明の混合流体に対してス
クロール式圧縮機の信頼性を向上させるには、膨潤率が
0.1〜１％のＰＰＳ樹脂を主成分とするチップシール材
を用いるのが好ましい。FIG. 4 is a graph showing the experimental results on the relationship between the sliding surface pressure and the amount of wear of the tip seal material 1 having the above composition exposed to a mixed fluid of two kinds of refrigerants and lubricating oil. A conventional mixed fluid of HCFC and hydrocarbon-based oil is shown, and a solid line shows a mixed fluid of HFC and polyvinyl ether-based oil of the present invention. As is evident from the figure, the tip seal material containing polyphenylene sulfide (PPS) resin as the main component swells as much as 1.8% in the conventional mixed fluid, and its physical properties are deteriorated. The amount of wear is large. on the other hand,
In the mixed fluid of the present invention, it swells moderately to 0.4% to increase the sealability, and the slidability is not deteriorated and the wear amount is small. From this, the tip seal material of the present invention containing a polyphenylene sulfide resin as a main component can be used as a refrigerant HFC.
It can be seen that the composition is suitable for a mixed fluid of polyvinyl ether oil and lubricating oil. In order to improve the reliability of the scroll type compressor with respect to the mixed fluid of the present invention, the swelling ratio is required.
It is preferable to use a chip sealing material mainly containing 0.1 to 1% of PPS resin.
【００１６】上記実施の形態では、チップシール材１
が、主成分のポリフェニレンサルファイド樹脂のほか
に、ポリテトラフルオロエチレン樹脂およびポリアクリ
ルニトリル系炭素繊維を含んでいるので、耐水性のほか
摺動抵抗の低減効果と強度,耐摩耗性の向上効果も発揮
して、チップシール材１の耐久性およびスクロール式圧
縮機１１の信頼性が一層向上するという利点がある。In the above embodiment, the tip sealing material 1
However, since it contains polytetrafluoroethylene resin and polyacrylonitrile-based carbon fiber in addition to the main component polyphenylene sulfide resin, it also has the effect of reducing sliding resistance and improving strength and wear resistance in addition to water resistance. This has the advantage that the durability of the tip seal material 1 and the reliability of the scroll compressor 11 are further improved.
【００１７】[0017]
【発明の効果】以上の説明で明らかなように、請求項１
の発明は、スクロール式圧縮機,凝縮器,膨張装置,蒸発
器を順次配管で接続した冷凍回路に、冷媒であるハイド
ロフルオロカーボンと潤滑油であるポリビニルエーテル
系油の混合流体を循環させるスクロール式圧縮機を有す
る冷凍システムにおいて、上記スクロール式圧縮機のス
クロール部材のチップシール材が、ポリフェニレンサル
ファイド樹脂を主成分としているので、上記冷媒および
潤滑油が多少の水分を含んでいても、チップシール材が
水分の作用で強度低下することがなく、耐用寿命が延び
て、スクロール式圧縮機の信頼性を高めることができ
る。As is apparent from the above description, claim 1
The invention relates to a scroll compressor in which a mixed fluid of hydrofluorocarbon as a refrigerant and polyvinyl ether oil as a lubricating oil is circulated in a refrigeration circuit in which a scroll compressor, a condenser, an expansion device, and an evaporator are sequentially connected by piping. In the refrigeration system having a compressor, the tip seal material of the scroll member of the scroll compressor is mainly composed of polyphenylene sulfide resin, so that even if the refrigerant and the lubricating oil contain some water, the tip seal material is The strength is not reduced by the action of moisture, the service life is extended, and the reliability of the scroll compressor can be increased.
【００１８】請求項２の発明に係る冷凍システムのスク
ロール式圧縮機は、上記チップシール材が、ポリフェニ
レンサルファイド樹脂７０重量％以上、ポリテトラフル
オロエチレン樹脂１〜１０重量％、ポリアクリルニトリ
ル系炭素繊維１０〜２０重量％を含有しているので、ポ
リテトラフルオロエチレン樹脂の摺動抵抗の低減効果と
ポリアクリルニトリル系炭素繊維の強度,耐摩耗性の向
上効果が加わって、チップシール材の耐用寿命が一層延
びて、スクロール式圧縮機の信頼性を一層高めることが
できる。According to a second aspect of the present invention, there is provided a scroll type compressor for a refrigeration system, wherein the tip sealing material is 70% by weight or more of polyphenylene sulfide resin, 1 to 10% by weight of polytetrafluoroethylene resin, and polyacrylonitrile carbon fiber. Since it contains 10 to 20% by weight, the effect of reducing the sliding resistance of the polytetrafluoroethylene resin and the effect of improving the strength and abrasion resistance of the polyacrylonitrile-based carbon fiber are added, and the service life of the tip seal material is increased. Is further extended, and the reliability of the scroll compressor can be further enhanced.
【図１】 本発明のスクロール式圧縮機の可動スクロー
ル部材の斜視図およびチップシール部の詳細断面図であ
る。FIG. 1 is a perspective view of a movable scroll member of a scroll compressor of the present invention and a detailed sectional view of a tip seal portion.
【図２】 一般的な冷凍回路を示す図である。FIG. 2 is a diagram showing a general refrigeration circuit.
【図３】 冷媒と潤滑油の混合流体に曝される本発明の
チップシール材の摺動面圧と摩耗量の関係についての実
験結果を示す図である。FIG. 3 is a diagram showing an experimental result on a relationship between a sliding surface pressure and a wear amount of a tip seal material of the present invention exposed to a mixed fluid of a refrigerant and a lubricating oil.
【図４】 従来のスクロール式圧縮機の要部の断面図で
ある。FIG. 4 is a sectional view of a main part of a conventional scroll compressor.
１…チップシール材、２…溝、１１…スクロール式圧縮
機、１２…四路切換弁、１３…凝縮器、１４…キャピラ
リチューブ、１５…蒸発器、 １６a〜１６f…配管、２１…ケーシング、２２…固定ス
クロール部材、２３,２６…底板、２４,２７…渦巻き
壁、２５…可動スクロール部材。DESCRIPTION OF SYMBOLS 1 ... Tip seal material, 2 ... Groove, 11 ... Scroll compressor, 12 ... Four-way switching valve, 13 ... Condenser, 14 ... Capillary tube, 15 ... Evaporator, 16a-16f ... Piping, 21 ... Casing, 22 ... fixed scroll member, 23, 26 ... bottom plate, 24, 27 ... spiral wall, 25 ... movable scroll member.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０８Ｌ 81/02 Ｃ０８Ｌ 81/02 Ｃ１０Ｍ 107/24 Ｃ１０Ｍ 107/24 Ｆ０４Ｃ 18/02 ３１１ Ｆ０４Ｃ 18/02 ３１１Ｔ Ｆ２５Ｂ 1/00 ３９５ Ｆ２５Ｂ 1/00 ３９５Ｚ 1/04 1/04 Ｙ // Ｃ０９Ｋ 5/04 Ｃ０９Ｋ 5/04 Ｃ１０Ｎ 20:02 30:00 40:30 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI C08L 81/02 C08L 81/02 C10M 107/24 C10M 107/24 F04C 18/02 311 F04C 18/02 311T F25B 1/00 395 F25B 1/00 395Z 1/04 1/04 Y // C09K 5/04 C09K 5/04 C10N 20:02 30:00 40:30
Claims (2)
３),膨張装置(１４),蒸発器(１５)を順次配管(１６a〜
１６f)で接続した冷凍回路に、冷媒であるハイドロフル
オロカーボンと潤滑油として４０℃における動粘度が３
０〜１００センチストークスを有するポリビニルエーテ
ル系油の混合流体を循環させるスクロール式圧縮機を有
する冷凍システムにおいて、 上記スクロール式圧縮機(１１)のスクロール部材(２２,
２５)のチップシール材(１)は、ポリフェニレンサルフ
ァイド樹脂を主成分とすることを特徴とするスクロール
式圧縮機を有する冷凍システム。1. A scroll compressor (11) and a condenser (1).
3), an expansion device (14), and an evaporator (15) are sequentially piped (16a-
In the refrigeration circuit connected in step 16f), the kinetic viscosity at 40 ° C. of 3
A refrigeration system having a scroll-type compressor that circulates a mixed fluid of polyvinyl ether-based oil having 0 to 100 centistokes, wherein a scroll member (22,
25) A refrigeration system having a scroll compressor, wherein the tip seal material (1) is mainly composed of polyphenylene sulfide resin.
有する冷凍システムにおいて、上記チップシール材(１)
は、ポリフェニレンサルファイド樹脂７０重量％以上、
ポリテトラフルオロエチレン樹脂１〜１０重量％、ポリ
アクリルニトリル系炭素繊維１０〜２０重量％を含有す
ることを特徴とするスクロール圧縮機を有する冷凍シス
テム。2. A refrigeration system having a scroll compressor according to claim 1, wherein said tip sealing material (1).
Is 70% by weight or more of polyphenylene sulfide resin,
A refrigeration system having a scroll compressor, comprising 1 to 10% by weight of a polytetrafluoroethylene resin and 10 to 20% by weight of a polyacrylonitrile-based carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9043436A JPH10237421A (en) | 1997-02-27 | 1997-02-27 | Refrigeration system with scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9043436A JPH10237421A (en) | 1997-02-27 | 1997-02-27 | Refrigeration system with scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10237421A true JPH10237421A (en) | 1998-09-08 |
Family
ID=12663656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9043436A Pending JPH10237421A (en) | 1997-02-27 | 1997-02-27 | Refrigeration system with scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10237421A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1031610A1 (en) * | 1998-09-04 | 2000-08-30 | Idemitsu Petrochemical Co., Ltd. | Polyarylene sulfide resin composition and part for use in contact with refrigerant |
| JP2002005316A (en) * | 2000-06-26 | 2002-01-09 | Ntn Corp | Valve slide and resin part |
| EP1310674A2 (en) * | 2001-11-07 | 2003-05-14 | Kabushiki Kaisha Toyota Jidoshokki | Coating for swash plate compressor |
| CN1316163C (en) * | 2003-05-26 | 2007-05-16 | 株式会社日立产机系统 | Sliding material and oiling-free vortex compressor |
| EP1983195A1 (en) * | 2007-04-18 | 2008-10-22 | Scroll Technologies | Ductile cast iron scroll compressor |
| US7640841B2 (en) | 2006-01-05 | 2010-01-05 | Saint-Gobain Performance Plastics Corporation | Annular seal and pump including same |
| US7802796B2 (en) | 2006-01-05 | 2010-09-28 | Saint-Gobain Performance Plastics Corporation | Composite material and seals formed thereof |
| JP2012026610A (en) * | 2010-07-21 | 2012-02-09 | Mitsubishi Electric Corp | Refrigerant circuit system |
| CN103089618A (en) * | 2012-11-14 | 2013-05-08 | 柳州易舟汽车空调有限公司 | Scroll compressor |
| US8603411B2 (en) | 2008-12-24 | 2013-12-10 | Saint-Gobain Performance Plastics Corporation | Polymer material and seals formed thereof for high pressure pump applications |
-
1997
- 1997-02-27 JP JP9043436A patent/JPH10237421A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1031610A4 (en) * | 1998-09-04 | 2000-11-22 | Idemitsu Petrochemical Co | Polyarylene sulfide resin composition and part for use in contact with refrigerant |
| EP1031610A1 (en) * | 1998-09-04 | 2000-08-30 | Idemitsu Petrochemical Co., Ltd. | Polyarylene sulfide resin composition and part for use in contact with refrigerant |
| JP2002005316A (en) * | 2000-06-26 | 2002-01-09 | Ntn Corp | Valve slide and resin part |
| EP1310674A2 (en) * | 2001-11-07 | 2003-05-14 | Kabushiki Kaisha Toyota Jidoshokki | Coating for swash plate compressor |
| EP1310674A3 (en) * | 2001-11-07 | 2005-06-29 | Kabushiki Kaisha Toyota Jidoshokki | Coating for swash plate compressor |
| CN1316163C (en) * | 2003-05-26 | 2007-05-16 | 株式会社日立产机系统 | Sliding material and oiling-free vortex compressor |
| US7802796B2 (en) | 2006-01-05 | 2010-09-28 | Saint-Gobain Performance Plastics Corporation | Composite material and seals formed thereof |
| US7640841B2 (en) | 2006-01-05 | 2010-01-05 | Saint-Gobain Performance Plastics Corporation | Annular seal and pump including same |
| EP1983195A1 (en) * | 2007-04-18 | 2008-10-22 | Scroll Technologies | Ductile cast iron scroll compressor |
| US8603411B2 (en) | 2008-12-24 | 2013-12-10 | Saint-Gobain Performance Plastics Corporation | Polymer material and seals formed thereof for high pressure pump applications |
| JP2012026610A (en) * | 2010-07-21 | 2012-02-09 | Mitsubishi Electric Corp | Refrigerant circuit system |
| CN103089618A (en) * | 2012-11-14 | 2013-05-08 | 柳州易舟汽车空调有限公司 | Scroll compressor |
| CN103089618B (en) * | 2012-11-14 | 2015-05-13 | 柳州易舟汽车空调有限公司 | Scroll compressor |
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