JPH0427780A - Refrigerant gas compressor - Google Patents
Refrigerant gas compressorInfo
- Publication number
- JPH0427780A JPH0427780A JP12952490A JP12952490A JPH0427780A JP H0427780 A JPH0427780 A JP H0427780A JP 12952490 A JP12952490 A JP 12952490A JP 12952490 A JP12952490 A JP 12952490A JP H0427780 A JPH0427780 A JP H0427780A
- Authority
- JP
- Japan
- Prior art keywords
- moisture
- refrigerant
- refrigerant gas
- oil
- refrigerating machine
- 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
- 239000003507 refrigerant Substances 0.000 title claims abstract description 52
- 239000001257 hydrogen Substances 0.000 claims abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 4
- 239000012024 dehydrating agents Substances 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 28
- 238000005057 refrigeration Methods 0.000 claims description 24
- 239000010721 machine oil Substances 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 150000001722 carbon compounds Chemical group 0.000 claims description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010696 ester oil Substances 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims 1
- 238000005984 hydrogenation reaction Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical group 0.000 abstract 1
- 230000002950 deficient Effects 0.000 abstract 1
- 239000002274 desiccant Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 4
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- F04B39/16—Filtration; Moisture separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、冷蔵庫や冷凍庫等のような冷凍システム要部
を構成する、冷媒ガスを密閉圧縮する冷媒ガス（以下、
単に冷媒という）圧縮機に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a refrigerant gas (hereinafter referred to as
related to compressors (simply referred to as refrigerants).
（従来の技術）
近年、冷媒のクロロフルオロカーボン（以下、ＣＦＣと
略す）の影響によるオゾン層の破壊や、地球の温暖化等
に関する環境問題が注目されており、その注目の中で、
上記ＣＦＣの使用量の削減が極めて大きな研究テーマと
なっている。(Prior art) In recent years, environmental problems such as the destruction of the ozone layer and global warming due to the effects of refrigerant chlorofluorocarbons (hereinafter abbreviated as CFC) have been attracting attention.
Reducing the amount of CFC used is an extremely important research theme.
そのため、従来、ＣＦＣとして使用されている完全ハロ
ゲン化炭素化合物は、少なくとも水素を１個以上含むハ
ロゲン化炭素化合物に代替が図られる傾向にあり、具体
的には、代表的な冷媒のジクロロジフルオロメタン（以
下、ＣＦＣ−１２と略す）は、ＣＦＣの代替物質であり
、さらにオゾン破壊に対する影響の少ない１，１，１．
２−テトラフルオロエタン（以下、ＲＦＣ−１３４ａと
略す）に代替するため種々の改善、取組みがなされてい
る。Therefore, the fully halogenated carbon compounds conventionally used as CFCs are being replaced by halogenated carbon compounds containing at least one hydrogen. Specifically, dichlorodifluoromethane, a typical refrigerant, (hereinafter abbreviated as CFC-12) is an alternative substance to CFC, and 1,1,1.
Various improvements and efforts have been made to replace 2-tetrafluoroethane (hereinafter abbreviated as RFC-134a).
ところで、たとえばＲｅ５ｅａｒｃｈ Ｄｉｓｃｌｏｓ
ｕｒ（デュポン社１９７８年１０月発行）によれば、上
記、ＲＦＣ−１３４ａは従来の如何なる油とも相溶性が
悪く、すべての温度域において二重分離を生じ、唯一、
グリコール系油にのみ溶解するとされていたが、その後
の研究でエステル系油にも溶解することが判明してきて
おり、たとえば、ＵＳＰ第４８５１１４４号明細書には
エステル系油とグリコール系油を混合した冷凍機油が冷
媒ＲＦＣ−１３４ａに溶解することが示ぎわでいる。By the way, for example, Re5search Disclos
According to UR (published by DuPont, October 1978), the above RFC-134a has poor compatibility with any conventional oil, causes double separation in all temperature ranges, and is the only
It was believed that it was soluble only in glycol-based oils, but subsequent research has revealed that it is also soluble in ester-based oils. For example, USP No. 4,851,144 describes a mixture of ester-based oils and glycol-based oils. It has been shown that refrigeration oil dissolves in refrigerant RFC-134a.
第２図は従来の密閉型の冷媒圧縮機（以下、単に圧縮機
という）を示す断面図である。１は機械部であり、シャ
フト２．副軸受３．軸受４．ピストン５．シリンダ６を
有し圧縮室７を構成している。８は給油装置であり、給
油管９とその中に配置され粘性ポンプとして動作するバ
ネ１０とからなっている。１１は冷媒ＣＦＣ−１２と冷
凍機油の混合液で、給油装置８によって機械部１の各部
材の摺動面に供給される。、１２はモータ部でターミナ
ルＩ３を介して電源が供給され、１４は金属製の密閉ケ
ーシングである。FIG. 2 is a sectional view showing a conventional hermetic refrigerant compressor (hereinafter simply referred to as a compressor). 1 is a mechanical part, a shaft 2. Secondary bearing 3. Bearing 4. Piston 5. It has a cylinder 6 and constitutes a compression chamber 7. Reference numeral 8 denotes an oil supply device, which consists of an oil supply pipe 9 and a spring 10 disposed therein, which operates as a viscous pump. Reference numeral 11 denotes a liquid mixture of refrigerant CFC-12 and refrigerating machine oil, which is supplied to the sliding surfaces of each member of the mechanical section 1 by an oil supply device 8 . , 12 is a motor section to which power is supplied via terminal I3, and 14 is a metal sealed casing.
（発明が解決しようとする課題）
上記のような圧縮機は、モータ部］！によりシャフト２
が回転してピストン５を駆動し、副軸受３゜軸受４．及
びシリンダ６により構成された圧縮室７内に有する冷媒
を圧縮する。その圧縮された冷媒は冷凍システム中の図
示しない凝縮機により液化され、ドライヤ内に有する乾
燥剤で脱水され、さらに蒸発器により気化、冷却された
後、再びこの圧縮機に還流される。(Problem to be solved by the invention) The compressor as described above has a motor part]! By shaft 2
rotates to drive the piston 5, and the secondary bearing 3° and the bearing 4. The refrigerant contained in the compression chamber 7 formed by the cylinder 6 is compressed. The compressed refrigerant is liquefied by a condenser (not shown) in the refrigeration system, dehydrated by a desiccant contained in a dryer, vaporized and cooled by an evaporator, and then returned to the compressor.
なお、近年、上記のような圧縮機の省スペース化のため
ホ型化の傾向にあり、そのため放熱性が悪く高温になる
ことが多くなる。従って、−船釣に耐熱性のよいエステ
ル系油やグリコール系油でも、空気や水分等の不純物が
共存することになり、高温により化学反応をおこして冷
凍システムにとって有害物質を生成し、特にエステル系
油は冷凍機油中に残る微量の水分によって、加水分解さ
れて酸を生じ、その酸が触媒となって、さらに多量の酸
あるいは有害物質を生成することになる。In recent years, there has been a trend toward E-type compressors in order to save space, as described above, and as a result, heat dissipation is poor and temperatures often reach high temperatures. Therefore, even with ester-based oils and glycol-based oils that have good heat resistance for boat fishing, impurities such as air and moisture coexist, causing chemical reactions at high temperatures and producing substances harmful to refrigeration systems, especially ester oils. The system oil is hydrolyzed by the trace amount of water remaining in the refrigerating machine oil to produce an acid, which acts as a catalyst to produce an even larger amount of acid or harmful substances.
そのように生成される酸、あるいは有害物質は冷凍機油
の電気絶縁性を劣化させ、特に酸は機械部の摺動面に侵
入１作用して腐食摩耗させ圧縮機の寿命を縮めることに
なる。また、有害物質に含む重合物は冷凍システムの配
管内に詰り冷媒の還流を妨げて冷却不良を招来すること
になる。なお、上記の冷却不良を防止するため、浄油機
等を用いて冷凍機油から事前に脱水し、あるいは冷凍シ
ステムの乾燥剤を増量して対処する方法はあるが、浄油
機による脱水には限度があるうえに、冷凍システム配管
の表面に扱者した水分や、モータ部１２のステータの珪
素鋼板が密着した隙間に侵入している水分は除去できず
、それが圧縮機の運転によって徐々に浸出するから、・
冷凍油中に微量の水分が残存することが不可避である。The acids or harmful substances produced in this way deteriorate the electrical insulation properties of the refrigerating machine oil, and in particular, the acids invade the sliding surfaces of mechanical parts, causing corrosive wear and shortening the life of the compressor. Moreover, polymers contained in harmful substances clog the pipes of the refrigeration system and prevent the refrigerant from circulating, resulting in poor cooling. In order to prevent the above-mentioned cooling failure, there are ways to dehydrate the refrigeration oil in advance using an oil purifier or increase the amount of desiccant in the refrigeration system, but dehydration using an oil purifier does not work. In addition to the limitations, it is not possible to remove moisture that the operator has put on the surface of the refrigeration system piping or moisture that has entered the gap between the silicon steel plates of the stator of the motor section 12, which is gradually removed by compressor operation. Because it leaches,
It is inevitable that a small amount of water remains in the frozen oil.
また、冷凍システムの乾燥剤を増量しても、冷凍機油が
親水性であるために完全な脱水は不可能である。Further, even if the amount of desiccant in the refrigeration system is increased, complete dehydration is not possible because refrigeration oil is hydrophilic.
本発明は上述に鑑み、少なくとも１個以上の水素分子で
置換されたハロゲン化炭素化合物からなる冷媒と、それ
に溶解する冷凍機油を密閉封入させ、それら冷媒及び冷
凍機油に含まれる水分を検知して、加水分解により生ず
る酸のために起こる冷凍システムの故障を事前に防止す
る密閉型の冷媒圧縮機の提供を目的とする。In view of the above, the present invention includes a refrigerant made of a halogenated carbon compound substituted with at least one hydrogen molecule and refrigerating machine oil dissolved in the refrigerant, and detecting moisture contained in the refrigerant and refrigerating machine oil. The object of the present invention is to provide a hermetic refrigerant compressor that prevents failures of refrigeration systems caused by acids generated by hydrolysis.
（課題を解決するための手段）
本発明は上記の目的を、密閉ケーシング内に、機械部と
、それを駆動するモータ部と、上記機械部に冷凍機油を
供給する給油装置と、その冷凍機油に浸漬する位置に設
けた水分センサーとを、少なくとも１個以上の水素によ
り置換されたハロゲン化炭化化合物からなる冷媒と、そ
の冷媒に溶解する冷凍機油とを封入して密閉し、かつ、
上記密閉ケーシングの外面下部に電気ヒータを設け、上
記水分センサーが水分を検知することにより上記電気ヒ
ータに通電されて上記冷凍機油中の水分が冷媒中に蒸発
して、その水分は冷媒が冷凍システムを還流中に脱水剤
によって除去される構成とした密閉型の冷媒圧縮機によ
り達成する。(Means for Solving the Problems) The present invention has achieved the above object by providing a mechanical part, a motor part for driving the mechanical part, a lubricating device for supplying refrigerating machine oil to the mechanical part, and a refrigerating machine oil for the mechanical part, in a sealed casing. A moisture sensor provided at a position where it is immersed in the water is sealed with a refrigerant made of a halogenated carbon compound substituted with at least one hydrogen and refrigerating machine oil dissolved in the refrigerant, and
An electric heater is provided at the lower part of the outer surface of the sealed casing, and when the moisture sensor detects moisture, the electric heater is energized, and the moisture in the refrigeration oil evaporates into the refrigerant, and the moisture is absorbed into the refrigerant system. This is achieved using a hermetic refrigerant compressor configured to remove the refrigerant with a dehydrating agent during reflux.
（作 用）
本発明の上記圧縮機によれば、水分が冷凍機油と反応し
て生成される酸による電気絶縁性の低下、または腐食摩
耗、あるいは発生した有害物質による配管の詰り等に起
因する冷凍システムの冷却不良が水分センサーによって
検知され、それにより圧縮機の運転が停止されて、密閉
ケーシング下部に設けたヒータに通電、加熱されること
により、冷凍機油中の水分が冷媒中に蒸発し、その冷媒
中の水分は冷凍システム中の乾燥剤によって除去されて
、冷凍システムの故障が未然に防止されることになる。(Function) According to the above-mentioned compressor of the present invention, deterioration of electrical insulation due to acid generated when moisture reacts with refrigerating machine oil, corrosion wear, or clogging of piping due to generated harmful substances, etc. When a moisture sensor detects a cooling failure in the refrigeration system, the compressor stops operating, and the heater installed at the bottom of the sealed casing is energized and heated, causing the moisture in the refrigeration oil to evaporate into the refrigerant. The moisture in the refrigerant is removed by the desiccant in the refrigeration system, thereby preventing the refrigeration system from malfunctioning.
（実施例） 以下、本発明の実施例を図面を用いて説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例の構成を示す断面図で、第２
図と同じ、または同一機能の部位は同じ符号で示してお
り、その他の符号１５は密閉ケーシングの下方に有する
給油装置８に隣接して形成される突起部、１６は突起部
１５の底部に設けたベプロスカイト型の半導体により形
成した水分センサー１７は水分センサー１６の出力信号
を取り比すだめのセンサーターミナル部、１８は密閉ケ
ーシング、１９はその下面に設けたヒータである。FIG. 1 is a sectional view showing the configuration of one embodiment of the present invention.
Parts that are the same as those in the figure or have the same functions are indicated by the same reference numerals, and the other reference numerals 15 are a protrusion formed adjacent to the oil supply device 8 provided below the sealed casing, and 16 is a protrusion provided at the bottom of the protrusion 15. The moisture sensor 17 formed of a beproskite type semiconductor is a sensor terminal portion for collecting and comparing the output signals of the moisture sensor 16, 18 is a sealed casing, and 19 is a heater provided on the lower surface thereof.
以上のように構成した本発明の圧縮機は次のように動作
する。The compressor of the present invention configured as described above operates as follows.
まず、シャフト２はモータ部１２によって回転してピス
トン５を駆動し、副軸受３．軸受４．シリンダ６により
形成された圧縮室７の冷媒を圧縮する。その時発生する
圧縮熱とモータ部１２の発熱によって、密閉された圧縮
機内は温度が上昇する。First, the shaft 2 is rotated by the motor section 12 to drive the piston 5, and the auxiliary bearing 3. Bearing 4. The refrigerant in the compression chamber 7 formed by the cylinder 6 is compressed. The temperature inside the hermetically sealed compressor rises due to the compression heat generated at that time and the heat generated by the motor section 12.
一方、圧縮された冷媒は配管により冷凍システムに送出
されて冷却機能を果した後、圧縮機に還流される。その
時、冷媒のＲＦＣ−１３４ａ（１，１，１゜２−テトラ
フルオロエタン）と、冷凍機油（エステル系油とグリコ
ール系油の混合）との混合液が給油装置８により機械部
１に潤滑のため供給される。On the other hand, the compressed refrigerant is sent to the refrigeration system through piping to perform a cooling function, and then is returned to the compressor. At that time, a liquid mixture of refrigerant RFC-134a (1,1,1°2-tetrafluoroethane) and refrigeration oil (a mixture of ester oil and glycol oil) is supplied to the mechanical part 1 by the oil supply device 8. Supplied for.
この圧縮機の動作中、冷凍システムの配管の表面に吸着
する水分や、モータ部１２のステータを構成する珪素鋼
板の積層間隙に侵入した水分が上記発熱により徐々に浸
出し、その浸出した水分の一部は冷媒に溶解して冷凍シ
ステムを循環し循環途中に有するドライヤ内にある乾燥
剤によって脱水されるが、他の水分は冷凍機油に溶は込
む。During operation of this compressor, moisture adsorbed on the surface of the piping of the refrigeration system and moisture that has entered the laminated gap of the silicon steel plates that constitute the stator of the motor section 12 gradually leaches out due to the heat generation, and the leached moisture Some of the water is dissolved in the refrigerant and circulated through the refrigeration system, and is dehydrated by the desiccant in the dryer during the circulation, but the other water is dissolved in the refrigeration oil.
水分センサー１６は上記の冷凍機油に溶けこんだ水分が
、ある一定量を超えたことを電気抵抗の変化として検出
し、その抵抗変化を利用して圧縮機の運転を停止させる
と共に、密閉ケーシング１８の下部に設けた電気ヒータ
１９に通電して、通常は約８５℃の冷凍機油の温度を上
昇させる。そのときの冷凍機油の温度は連続運転時の絶
縁材料等の寿命を考慮して、一般には許容温度が約１２
０℃迄とされているが、上記電気ヒータ１９の加熱は短
時間であることから、１２０℃を超えても絶縁材料等の
寿命には影響がない。The moisture sensor 16 detects as a change in electrical resistance when the moisture dissolved in the refrigerating machine oil exceeds a certain amount, and uses this change in resistance to stop the operation of the compressor, and also stops the operation of the airtight casing 18. The electric heater 19 provided at the bottom of the refrigerator is energized to raise the temperature of the refrigerating machine oil, which is normally about 85°C. The temperature of the refrigerating machine oil at that time is generally about 12°C, considering the lifespan of insulating materials during continuous operation.
Although the heating temperature is said to be up to 0°C, since the electric heater 19 is heated for a short time, even if the temperature exceeds 120°C, the life of the insulating material etc. is not affected.
本発明は上記のようにして、電気ヒータ１９により通常
の使用温度より高い温度に冷凍機油を加熱して、それに
含まれる水分を蒸発させ冷媒に混入させる。なお、上記
の水分は、冷媒の許容水分量まで冷媒に溶解させること
ができる。上記の過程で水分が除去されると、水分セン
サー１６の電気抵抗は元に戻り、それにより圧縮機の運
転が再開され、その再開により冷媒中の水分は冷媒シス
テム内を冷媒が循環中に、冷媒システムに配された乾燥
剤に吸着され除去される。In the present invention, as described above, the electric heater 19 heats the refrigerating machine oil to a temperature higher than the normal operating temperature to evaporate the water contained therein and mix it into the refrigerant. Note that the above-mentioned water can be dissolved in the refrigerant up to the allowable water content of the refrigerant. Once the moisture is removed in the above process, the electrical resistance of the moisture sensor 16 returns to its original value, thereby restarting the compressor, which removes the moisture in the refrigerant while the refrigerant is circulating within the refrigerant system. It is absorbed and removed by a desiccant placed in the refrigerant system.
以上のように本発明は、水分センサーの検出出力により
圧縮機下部に設けたヒータに通電、駆動させ、冷凍機油
中に有する水分を蒸発させて冷媒に溶解させてから乾燥
剤により吸着して除去するものである。As described above, the present invention energizes and drives the heater provided at the bottom of the compressor based on the detection output of the moisture sensor, evaporates the moisture contained in the refrigerating machine oil, dissolves it in the refrigerant, and then removes it by adsorption with a desiccant. It is something to do.
（発明の効果）
以上説明して明らかなように本発明は、冷媒と冷凍機油
を封入した密閉ケーシングと５その中に収容した機械部
と、それを駆動するモータ部と、上記機械部に冷凍機油
を供給する給油装置と、その冷凍機油中に設置した水分
センサーと、及び密閉ケーシングの下部に配置したヒー
タとを有し、上記水分センサーが水分を検知することに
より上記ヒータが通電されて、冷凍機油中の水分を蒸発
させ、冷媒に混入した水分は冷媒が冷凍システムを還流
生乾燥剤によって除去されるから、酸や有害物質が生成
される前に水分が除去され、漏電や腐食摩耗や、冷却不
良等の発生を未然に防止できる効果を有する。(Effects of the Invention) As is clear from the above description, the present invention includes a sealed casing in which refrigerant and refrigeration oil are sealed, a mechanical part housed therein, a motor part for driving the mechanical part, and a refrigerating machine part in the mechanical part. It has a refueling device that supplies machine oil, a moisture sensor installed in the refrigerating machine oil, and a heater placed at the bottom of the sealed casing, and when the moisture sensor detects moisture, the heater is energized, The moisture in the refrigerating machine oil is evaporated and the moisture mixed in with the refrigerant is removed by the drying agent as the refrigerant recirculates the refrigeration system, so the moisture is removed before acids and harmful substances are generated, preventing electrical leakage, corrosion and wear. This has the effect of preventing the occurrence of cooling defects, etc.
第１図は本発明の一実施例の圧縮機の断面図、第２図は
従来の圧縮機の断面を示す図である。
１ ・・ 機械部、 ２・・・シャフト、 ３ ・副軸
受、 ４ ・・・軸受、 ５ ・・・ ピストン。
６・・ シリンダ、 ７ ・・・圧縮室、 ８ ・・給
油装置、 ９ ・・・給油管、１０・・・バネ、１１・
・混合液、１２・・・モータ部、１３ターミナル、１４
．１８・・・密閉ケーシング、１５・・・突起部、１６
・・水分センサー１７・・・センサーターミナル部
、１９ ・・ヒータ。FIG. 1 is a sectional view of a compressor according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional compressor. 1... Mechanical part, 2... Shaft, 3 - Sub bearing, 4... Bearing, 5... Piston. 6... Cylinder, 7... Compression chamber, 8... Oil supply device, 9... Oil supply pipe, 10... Spring, 11...
・Mixed liquid, 12...Motor part, 13 Terminal, 14
．． 18... Sealed casing, 15... Projection, 16
... Moisture sensor 17 ... Sensor terminal section, 19 ... Heater.
Claims (2)
おいて、密閉ケーシング内に、機械部と、それを駆動す
るモータ部と、上記機械部に冷凍機油を供給する給油装
置と、その冷凍機油に浸漬する位置に設けた水分センサ
ーとを、少なくとも１個以上の水素により置換されたハ
ロゲン化炭化化合物からなる冷媒ガスと、その冷媒ガス
に溶解する冷凍機油とを封入して密閉し、かつ、上記密
閉ケーシングの外面下部に電気ヒータを設け、上記水分
センサーが水分を検知することにより上記電気ヒータに
通電されて上記冷凍機油中の水分が冷媒ガス中に蒸発し
て、その水分は冷媒ガスが冷凍システムを還流中に脱水
剤によって除去される構成としたことを特徴とする冷媒
ガス圧縮機。(1) In a hermetically sealed refrigerant gas compressor used in a refrigeration system, a mechanical part, a motor part that drives the mechanical part, a lubricating device that supplies refrigerating machine oil to the mechanical part, and a refrigerating machine oil supply system are installed in the sealed casing. A moisture sensor provided at a position to be immersed is sealed with a refrigerant gas made of a halogenated carbon compound substituted with at least one hydrogen and refrigeration oil dissolved in the refrigerant gas, and the above-mentioned An electric heater is provided at the lower part of the outer surface of the sealed casing, and when the moisture sensor detects moisture, the electric heater is energized, and the moisture in the refrigerating machine oil evaporates into the refrigerant gas, and the moisture is absorbed by the refrigerant gas. A refrigerant gas compressor characterized in that the system is configured such that the refrigerant is removed by a dehydrating agent during reflux.
ンであり、冷凍機油がエステル系油とグリコール系油の
混合であることを特徴とする請求項（１）記載の冷媒ガ
ス圧縮機。(2) The refrigerant gas compressor according to claim (1), wherein the refrigerant gas is 1,1,1,2-tetrafluoroethane, and the refrigerating machine oil is a mixture of ester oil and glycol oil. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12952490A JPH0427780A (en) | 1990-05-19 | 1990-05-19 | Refrigerant gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12952490A JPH0427780A (en) | 1990-05-19 | 1990-05-19 | Refrigerant gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0427780A true JPH0427780A (en) | 1992-01-30 |
Family
ID=15011640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12952490A Pending JPH0427780A (en) | 1990-05-19 | 1990-05-19 | Refrigerant gas compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427780A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2848296A4 (en) * | 2012-05-10 | 2016-09-14 | Nabtesco Automotive Corp | Oil separator |
| US9533246B2 (en) | 2012-07-02 | 2017-01-03 | Nabtesco Automotive Corporation | Oil separator |
| US9656198B2 (en) | 2012-02-27 | 2017-05-23 | Nabtesco Automotive Corporation | Oil separator |
| US10082057B2 (en) | 2012-02-27 | 2018-09-25 | Nabtesco Automotive Corporation | Oil separator |
| US10087798B2 (en) | 2012-02-27 | 2018-10-02 | Nabtesco Automotive Corporation | Oil separator |
-
1990
- 1990-05-19 JP JP12952490A patent/JPH0427780A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9656198B2 (en) | 2012-02-27 | 2017-05-23 | Nabtesco Automotive Corporation | Oil separator |
| US10082057B2 (en) | 2012-02-27 | 2018-09-25 | Nabtesco Automotive Corporation | Oil separator |
| US10087798B2 (en) | 2012-02-27 | 2018-10-02 | Nabtesco Automotive Corporation | Oil separator |
| EP2848296A4 (en) * | 2012-05-10 | 2016-09-14 | Nabtesco Automotive Corp | Oil separator |
| US9890675B2 (en) | 2012-05-10 | 2018-02-13 | Nabtesco Automotive Corporation | Oil separator |
| US10815849B2 (en) | 2012-05-10 | 2020-10-27 | Nabtesco Automotive Corporation | Oil separator |
| US9533246B2 (en) | 2012-07-02 | 2017-01-03 | Nabtesco Automotive Corporation | Oil separator |
| US10099164B2 (en) | 2012-07-02 | 2018-10-16 | Nabtesco Automotive Corporation | Oil separator |
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