JPH0226712B2 - - Google Patents
Info
- Publication number
- JPH0226712B2 JPH0226712B2 JP13259283A JP13259283A JPH0226712B2 JP H0226712 B2 JPH0226712 B2 JP H0226712B2 JP 13259283 A JP13259283 A JP 13259283A JP 13259283 A JP13259283 A JP 13259283A JP H0226712 B2 JPH0226712 B2 JP H0226712B2
- Authority
- JP
- Japan
- Prior art keywords
- machine oil
- adsorbent
- refrigerating machine
- refrigerating
- compressor
- 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.)
- Expired
Links
- 239000003463 adsorbent Substances 0.000 claims description 23
- 239000010721 machine oil Substances 0.000 claims description 23
- 230000006866 deterioration Effects 0.000 claims description 11
- 239000012461 cellulose resin Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 1
- 239000002253 acid Substances 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 9
- 238000001179 sorption measurement Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F04B39/02—Lubrication
- F04B39/0215—Lubrication characterised by the use of a special lubricant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
【発明の詳細な説明】
本発明は冷凍圧縮機の冷凍機油の劣化を防止す
る装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing deterioration of refrigerating machine oil in a refrigerating compressor.
最近では冷凍圧縮機は小形かつ高性能化してお
り、これに伴つて冷凍機油に対する使用条件も厳
しくなつている。このため、高品質の冷凍機油を
使用しても冷凍機油の劣化による故障が生じる不
具合があつた。この冷凍機油の劣化の要因は過熱
による熱劣化、空気の混入による酸分生成、水分
の混入による遊離水の生成等がある。特に上記の
酸分、水分は冷凍機油自体の劣化のみならず、冷
媒の劣化、カツパープレーテイングの生成、モー
タ絶縁材料の焼損、各部品の腐食等の原因とな
る。このため、従来は組立時に冷凍圧縮機内に空
気、水分が混入するのでできるだけ防止するよう
に注意が払われていたが、これらの混入を完全に
防止することは困難であり、また組立後に空気や
水分が混入することも考えられる。 In recent years, refrigeration compressors have become smaller and more sophisticated, and along with this, the usage conditions for refrigeration oil have become stricter. For this reason, even if high quality refrigerating machine oil is used, failures may occur due to deterioration of the refrigerating machine oil. Factors contributing to the deterioration of this refrigerating machine oil include thermal deterioration due to overheating, generation of acid content due to mixing of air, and generation of free water due to mixing of moisture. In particular, the above acid content and moisture cause not only deterioration of the refrigerating machine oil itself, but also deterioration of the refrigerant, formation of cutper plating, burnout of the motor insulating material, corrosion of various parts, etc. For this reason, in the past, care was taken to prevent air and moisture from getting into the refrigeration compressor during assembly, but it is difficult to completely prevent them from getting into the refrigeration compressor. It is also possible that moisture may be mixed in.
本発明は以上の事情にもとづいてなされたもの
で、その目的とするところは冷凍圧縮機の冷凍機
油に混入した酸分、水分を吸着除去し、冷凍機油
の劣化を有効に防止することができる装置を提供
することにある。 The present invention has been made based on the above circumstances, and its purpose is to adsorb and remove acids and moisture mixed in the refrigerating machine oil of a refrigeration compressor, thereby effectively preventing the deterioration of the refrigerating machine oil. The goal is to provide equipment.
すなわち本発明はシリカゲル・アルミナ系吸着
剤の粉粒をセルロース系樹脂内に分散させて成形
した吸着体を冷凍圧縮機の冷凍機油流通部内に収
容したものである。よつて冷凍機油内に混入した
酸分、水分はこの吸着剤に吸着されるので、冷凍
機油の劣化を有効に防止することとができ、冷凍
圧縮機の耐久性を向上させることができるもので
ある。 That is, in the present invention, an adsorbent formed by dispersing powder particles of a silica gel/alumina adsorbent in a cellulose resin is housed in a refrigerating machine oil distribution section of a refrigerating compressor. Therefore, acids and moisture mixed into the refrigerating machine oil are adsorbed by this adsorbent, so deterioration of the refrigerating machine oil can be effectively prevented and the durability of the refrigerating compressor can be improved. be.
以下本発明の一実施例を図を参照して説明す
る。図中１は冷凍圧縮機であつて、この冷凍圧縮
機１内の冷凍機油流通部たとえばクランクケース
２内には吸着体３が収容されている。この吸着体
３は第２図に示す如く粉径0.5〜2.0mmの粉粒状の
シリカゲル・アルミナ系吸着剤４をセルロース系
樹脂たとえば酢酸セルロース樹脂５中に分散し、
所定の形状に成形したものである。なお、吸着剤
４とセルロース系樹脂５との混合比は体積比で
１：５〜５：１の範囲から選定される。 An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a refrigerating compressor, and an adsorbent 3 is housed in a refrigerating machine oil distribution section in the refrigerating compressor 1, for example, in a crankcase 2. As shown in FIG. As shown in FIG. 2, this adsorbent 3 is made by dispersing a granular silica gel/alumina adsorbent 4 with a powder diameter of 0.5 to 2.0 mm in a cellulose resin, such as cellulose acetate resin 5.
It is molded into a predetermined shape. The mixing ratio of the adsorbent 4 and the cellulose resin 5 is selected from a range of 1:5 to 5:1 by volume.
以上の如く構成された本発明の一実施例は冷凍
機油中に混入した酸分、水分は吸着体３によつて
効率よく吸着されるので冷凍機油の劣化が防止さ
れ、また冷凍圧縮機１の耐久性は向上する。ま
た、シリカゲル・アルミナ系吸着剤４はセルロー
ス系樹脂５中に分散されているので、これら吸着
剤４の粒子が冷凍機油中に浮遊することはなく、
潤滑を防げることはない。またセルロース系樹脂
は対液なじみ性が良好であるとともに親水性があ
るので、吸着剤４をこの樹脂中に分散させても酸
分、水分の吸着効率が低下することはない。 In one embodiment of the present invention configured as described above, the acid and moisture mixed in the refrigerating machine oil are efficiently adsorbed by the adsorbent 3, so that deterioration of the refrigerating machine oil is prevented and the refrigerating compressor 1 Durability is improved. Furthermore, since the silica gel/alumina adsorbent 4 is dispersed in the cellulose resin 5, particles of the adsorbent 4 do not float in the refrigerating machine oil.
There is no way to prevent lubrication. Moreover, since cellulose resin has good liquid compatibility and is hydrophilic, even if the adsorbent 4 is dispersed in this resin, the adsorption efficiency of acid and moisture will not decrease.
また、このような吸着体４によつて酸分、水分
を効率よく吸着させるには冷凍機油の粘度が40℃
で24cst以下であることが好ましいことが判明し
た。たとえば粘度グレードISO5〜110cstのナフ
テン系冷凍機油（有機酸約220ppm含有）にシリ
カゲル・アルミナ系吸着剤を1.5重量％添加し、
浸漬状態で対油接触させた場合の酸分、水分の吸
着効率と粘度との関係を求めたところ第３図に示
す如き結果を得た。なお第３図および第４図の実
線は水分、破線は酸分の吸着特性を示す。この結
果から明らかなように粘度が約24cst以下の領域
において吸着効率が向上しているのが認められ
る。なおこの他にも吸着剤や冷凍機油の種類を変
えて種々の実験をおこなつたがいずれも同様な結
果が得られ、一般的にも第４図に示す如く24cst
以下の領域で吸着効率が向上する。したがつて、
上記の吸着体３に接触させる冷凍機油は上記の低
粘度領域にあることが好ましい。たとえば冷凍機
油は一般に10℃の昇温により約10cstの粘度低下
が生じるので、＃150〜＃300の汎用油を用いる場
合10〜30℃の油温上昇を達成する加熱源を設ける
ことが好ましい。なお、クランクケースヒータ付
の冷凍圧縮機の場合にはこのヒータを加熱源とし
て使用できる。 In addition, in order for the adsorbent 4 to adsorb acids and moisture efficiently, the viscosity of the refrigerating machine oil must be 40°C.
It was found that a value of 24cst or less is preferable. For example, 1.5% by weight of silica gel/alumina adsorbent is added to naphthenic refrigeration oil (containing about 220 ppm of organic acids) with a viscosity grade of ISO5 to 110cst.
When the relationship between the adsorption efficiency of acid and moisture and the viscosity when brought into contact with oil in an immersed state was determined, the results shown in FIG. 3 were obtained. In addition, the solid line in FIGS. 3 and 4 shows the adsorption characteristics of moisture, and the broken line shows the adsorption characteristics of acid. As is clear from these results, it is recognized that the adsorption efficiency is improved in the region where the viscosity is about 24 cst or less. In addition, various experiments were conducted by changing the type of adsorbent and refrigerating machine oil, but similar results were obtained in all cases, and in general, as shown in Figure 4, 24cst
Adsorption efficiency improves in the following areas. Therefore,
It is preferable that the refrigerating machine oil brought into contact with the adsorbent 3 has a viscosity in the low viscosity range. For example, when refrigerating machine oil is heated by 10°C, the viscosity generally decreases by about 10 cst, so when using general-purpose oil of #150 to #300, it is preferable to provide a heating source that can raise the oil temperature by 10 to 30°C. Note that in the case of a refrigeration compressor equipped with a crankcase heater, this heater can be used as a heating source.
上述の如く本発明はシリカゲル・アルミナ系吸
着剤の粉粒をセルロース系樹脂内に分散させて成
形した吸着体を冷凍圧縮機の冷凍機油流通部内に
収容したものである。よつて冷凍機油内に混入し
た酸分、水分はこの吸着剤に吸着されるので、冷
凍機油の劣化を有効に防止することができ、冷凍
圧縮機の耐久性を向上させることができる等その
効果は大である。 As described above, in the present invention, an adsorbent formed by dispersing powder particles of a silica gel/alumina adsorbent in a cellulose resin is housed in a refrigerating machine oil circulation section of a refrigerating compressor. Therefore, the acid and moisture mixed into the refrigerating machine oil are adsorbed by this adsorbent, which effectively prevents the deterioration of the refrigerating machine oil and improves the durability of the refrigerating compressor. is large.
図面は本発明の一実施例を示し、第１図は冷凍
圧縮機の概略構成図、第２図は吸着体の概略構成
図、第３図および第４図は粘度と吸着効率との関
係を示す線図である。
１……冷凍圧縮機、２……クランクケース、３
……吸着体、４……シリカゲル・アルミナ系吸着
剤、５……セルロース系樹脂。
The drawings show an embodiment of the present invention; FIG. 1 is a schematic diagram of a refrigeration compressor, FIG. 2 is a schematic diagram of an adsorbent, and FIGS. 3 and 4 show the relationship between viscosity and adsorption efficiency. FIG. 1... Refrigeration compressor, 2... Crank case, 3
... Adsorbent, 4... Silica gel/alumina adsorbent, 5... Cellulose resin.
Claims (1)
ロース系樹脂内に分散させて成形した吸着体を冷
凍圧縮機の冷凍機油流通部内に収容したことを特
徴とする冷凍圧縮機の冷凍機油劣化防止装置。1. A refrigerating machine oil deterioration prevention device for a refrigerating compressor, characterized in that an adsorbent formed by dispersing powder particles of a silica gel/alumina adsorbent in a cellulose resin is housed in a refrigerating machine oil distribution section of the refrigerating compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13259283A JPS6026191A (en) | 1983-07-20 | 1983-07-20 | Anti-deterioration system of refrigerator oil for refrigerating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13259283A JPS6026191A (en) | 1983-07-20 | 1983-07-20 | Anti-deterioration system of refrigerator oil for refrigerating compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6026191A JPS6026191A (en) | 1985-02-09 |
| JPH0226712B2 true JPH0226712B2 (en) | 1990-06-12 |
Family
ID=15084942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13259283A Granted JPS6026191A (en) | 1983-07-20 | 1983-07-20 | Anti-deterioration system of refrigerator oil for refrigerating compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026191A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694188A (en) * | 1992-09-14 | 1994-04-05 | Mitsubishi Heavy Ind Ltd | Method and device for feed control of cylinder lubricating oil |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06102792B2 (en) * | 1987-10-30 | 1994-12-14 | 出光興産株式会社 | Lubricating oil for fluorine-containing alkane refrigerant |
| JP2604397B2 (en) * | 1988-01-28 | 1997-04-30 | マツダ株式会社 | V-type engine |
| JPH01166789U (en) * | 1988-05-13 | 1989-11-22 | ||
| DE4443847C2 (en) * | 1994-12-09 | 1997-10-16 | Hansa Metallwerke Ag | Compressor, in particular piston compressor, for refrigeration systems, in particular for air conditioning systems |
-
1983
- 1983-07-20 JP JP13259283A patent/JPS6026191A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694188A (en) * | 1992-09-14 | 1994-04-05 | Mitsubishi Heavy Ind Ltd | Method and device for feed control of cylinder lubricating oil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6026191A (en) | 1985-02-09 |
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