JPS634037B2 - - Google Patents
Info
- Publication number
- JPS634037B2 JPS634037B2 JP10700280A JP10700280A JPS634037B2 JP S634037 B2 JPS634037 B2 JP S634037B2 JP 10700280 A JP10700280 A JP 10700280A JP 10700280 A JP10700280 A JP 10700280A JP S634037 B2 JPS634037 B2 JP S634037B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- gas
- line
- compressor
- seal
- 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
- 239000003921 oil Substances 0.000 claims description 50
- 238000007872 degassing Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 27
- 238000010926 purge Methods 0.000 description 7
- 239000012071 phase Substances 0.000 description 6
- 239000002360 explosive Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
【発明の詳細な説明】
水素やメタン、エタン等の可燃ガスを圧縮する
ためのコンプレツサにおいて、軸封のために用い
るシールオイルに圧縮ガスの成分が溶解するた
め、シールオイルの物性の維持、防爆安全性の確
保面から油循還装置にはそれなりの対策が施され
ている。Detailed Description of the Invention In a compressor for compressing combustible gases such as hydrogen, methane, and ethane, components of the compressed gas are dissolved in the seal oil used for shaft sealing, so the physical properties of the seal oil can be maintained and explosion-proof. From the aspect of ensuring safety, certain measures are taken in the oil circulation system.
第１図には従来の油循還装置が示され、第１図
において、１はオイルリザーバ、２は脱ガスタン
ク、３はコンプレツサを示す。潤滑オイル系統
は、オイルリザーバ１からライン８によつてオイ
ルが引き出され、コンプレツサ３の軸受部を通過
したのちライン９を経て再びオイルリザーバ１に
戻る。このとき正常状態では、ライン９に可燃ガ
スが混入すことはない。 FIG. 1 shows a conventional oil circulation system. In FIG. 1, 1 is an oil reservoir, 2 is a degassing tank, and 3 is a compressor. In the lubricating oil system, oil is drawn out from the oil reservoir 1 through a line 8, passes through the bearing portion of the compressor 3, and then returns to the oil reservoir 1 through a line 9. At this time, under normal conditions, combustible gas does not enter the line 9.
次にシールオイルの系統について説明する。シ
ールオイルはオイルリザーバ１からライン４を経
てコンプレツサ３のシール部に至りここでオイル
は二手に分岐するが、まづ可燃性ガスに触れて、
これらのガスが溶解した分はライン５を経て、脱
ガスタンク２に入り、ここで脱ガスされ、ライン
７を経て再びリザーバ１に戻る。一方、シールオ
イルのうち、可燃性ガスと接触しない分はシール
部にて分岐流６となり、オイルライン８と合流し
た後ライン９よりオイルリザーバ１に戻る。とこ
ろで脱ガスタンク２には、脱ガス効果を促進する
ためライン１２よりN2ガスもしくは空気を送入
し、ガススパージヤ１４を用いてオイル相に通気
後、ライン１３から排出する。またオイルリザー
バ１の上部空間に爆発性混合気を形成しないよ
う、ライン１０よりN2もしくは、空気などを送
入し、ライン１１より排出している。２３はトラ
ツプ、２４はオイルポンプを示す。 Next, the seal oil system will be explained. The seal oil passes from the oil reservoir 1 through the line 4 to the seal part of the compressor 3, where it branches into two branches, but first comes into contact with flammable gas,
The dissolved gases enter the degassing tank 2 via line 5, are degassed there, and return to the reservoir 1 via line 7. On the other hand, the portion of the seal oil that does not come into contact with the flammable gas becomes a branched flow 6 at the seal portion, merges with the oil line 8, and then returns to the oil reservoir 1 via the line 9. By the way, N 2 gas or air is fed into the degassing tank 2 through a line 12 in order to promote the degassing effect, and after aerating the oil phase using a gas spargeer 14, it is discharged through a line 13. In addition, to prevent the formation of an explosive mixture in the upper space of the oil reservoir 1, N 2 or air is introduced through a line 10 and discharged through a line 11. 23 is a trap, and 24 is an oil pump.
さて、上述のような従来の油循還装置において
は次のような問題点がある。 Now, the conventional oil circulation device as described above has the following problems.
(1) N2ガスはコンプレツサの設置場所によつて
は入手し難い場合もあるが、これを脱ガス用の
通気ガスおよび可燃性ガスのパージ用として使
用すると、ユーテイリテイ費が高くつく。しか
し、防爆安全性は高い。(1) N2 gas may be difficult to obtain depending on the location where the compressor is installed, but if it is used as venting gas for degassing or for purging flammable gas, utility costs will be high. However, explosion-proof safety is high.
(2) 空気を上記N2ガスの代りに使用すると、コ
ンプレツサのシール部の破損、弁などのシール
不良、操作ミス等の異常時には、ライン５ある
いはライン９を通して、多量の可燃性ガスが、
それぞれ脱ガスタンク２あるいはオイルリザー
バ１に流入し、爆発性混合気を形成することが
ある。(2) If air is used instead of the N2 gas mentioned above, in the event of an abnormality such as damage to the compressor seal, defective valve seal, or operational error, a large amount of flammable gas will be released through line 5 or line 9.
They may flow into the degassing tank 2 or the oil reservoir 1, respectively, and form an explosive mixture.
本発明は、上述のような従来の欠点を解決する
ためになされたもので、安価な空気を使用しか
つ、異常時においても爆発性混合気形成の可能性
を小さくしたものである。以下本発明の１実施例
を第２図基づいて詳細に説明する。第２図におい
て特徴的な点は、コンプレツサ３からのシールオ
イルの戻りライン５ならびに潤滑油の戻りライン
９の途中に気液分離器１５，１６を設置したこと
である。このとき、気液分離器１５および１６は
必ずしも気液分離器と名称のつくものとは限ら
ず、オイルリザーバ１もしくは脱ガスタンク２と
構造が一体化したものであつてもよい。たとえば
第３図に示すように配管の一部に重力作用による
気液分離機能をもたせたものであつても良い。す
なわち、第３図において１９は配管の分岐部であ
り、これにオイルおよびガスの混相流２０が入つ
てくると、当該分岐部で気相流２２は上向きに流
れ、一方液相流２１は下向きに流れ、気液分離作
用を奏する。コンプレツサ囲りの異常時にライン
５あるいはライン９に多量に混入してくる恐れの
ある可燃性ガスを、気液分離機１５あるいは１６
においてオイル相から分離し、それぞれライン１
７，１８から排出する一方、オイル相のみをそれ
ぞれ脱ガスタンク２あるいはオイルリザーバ１に
戻すことができる。かくすることによつて、オイ
ルリザーバ１及脱ガスタンク２内のオイル相に溶
解してくる可燃ガスは、飽和値以上にはなりえな
いので、ライン１２および１０より所定量のパー
ジ用空気を供給すれば、脱ガスタンク２とオイル
リザーバ１の上部気相中可燃ガス濃度を爆発下限
界以下に維持することによつて、異常時も含め、
常時爆発混合気の形成を防止することができる。 The present invention has been made to solve the above-mentioned conventional drawbacks, and uses inexpensive air and reduces the possibility of forming an explosive mixture even in abnormal situations. Hereinafter, one embodiment of the present invention will be described in detail with reference to FIG. A distinctive feature of FIG. 2 is that gas-liquid separators 15 and 16 are installed in the middle of the seal oil return line 5 and lubricating oil return line 9 from the compressor 3. At this time, the gas-liquid separators 15 and 16 are not necessarily called gas-liquid separators, and may be integrated in structure with the oil reservoir 1 or the degassing tank 2. For example, as shown in FIG. 3, a part of the piping may be provided with a gas-liquid separation function by the action of gravity. That is, in FIG. 3, 19 is a branch of the piping, and when a multiphase flow 20 of oil and gas enters this, the gas phase flow 22 flows upward at the branch, while the liquid phase flow 21 flows downward. Flows into the air and exerts a gas-liquid separation effect. The gas-liquid separator 15 or 16 removes flammable gas that may enter line 5 or line 9 in large quantities in the event of an abnormality around the compressor.
separated from the oil phase in line 1, respectively.
7, 18, while only the oil phase can be returned to the degassing tank 2 or the oil reservoir 1, respectively. By doing this, the combustible gas dissolved in the oil phase in the oil reservoir 1 and the degassing tank 2 cannot exceed the saturation value, so a predetermined amount of purge air is supplied from the lines 12 and 10. By maintaining the combustible gas concentration in the upper gas phase of the degassing tank 2 and oil reservoir 1 below the lower explosive limit, even in abnormal situations,
The formation of an explosive mixture can be prevented at all times.
以上の通り、本発明はコンプレツサからのオイ
ルの戻りラインに気液分離器を設け、オイルは必
ず気液分離器を経たのちシールオイルは脱ガスタ
ンクに、潤滑油はオイルリザーバに戻すととも
に、脱ガスタンクおよびオイルリザーバ用のパー
ジガスとして空気を使用できるようにし、経済性
と安全性を従来法よりもさらに向上させうる。 As described above, the present invention provides a gas-liquid separator in the oil return line from the compressor, and after the oil always passes through the gas-liquid separator, the seal oil is returned to the degassing tank, the lubricating oil is returned to the oil reservoir, and the oil is returned to the degassing tank. and air can be used as a purge gas for the oil reservoir, further improving economy and safety over conventional methods.
第１図は、従来のコンプレツサ用油循還装置を
示す系統図、第２図は本発明の１実施例を示す系
統図、第３図は気液分離器の１例を示す図であ
る。
１……オイルリザーバ、２……脱ガスタンク、
３……コンプレツサ、４……シールオイル取り出
しライン、５……シールオイル戻りライン、６…
…シールオイル分岐液、７……脱ガス後のシール
オイルライン、８……潤滑オイル取出しライン、
９……潤滑オイル戻りライン、１０……パージガ
ス供給ライン、１１……パージガス排出ライン、
１２……パージガス供給ライン、１３……パージ
ガス排出ライン、１４……ガススパージヤ、１５
……気液分離器、１６……気液分離器、１７……
可燃性ガス排出ライン、１８……可燃性ガス排出
ライン。
FIG. 1 is a system diagram showing a conventional compressor oil circulation device, FIG. 2 is a system diagram showing an embodiment of the present invention, and FIG. 3 is a diagram showing an example of a gas-liquid separator. 1... Oil reservoir, 2... Degassing tank,
3...Compressor, 4...Seal oil take-out line, 5...Seal oil return line, 6...
... Seal oil branch liquid, 7 ... Seal oil line after degassing, 8 ... Lubricating oil extraction line,
9...Lubricating oil return line, 10...Purge gas supply line, 11...Purge gas discharge line,
12...Purge gas supply line, 13...Purge gas discharge line, 14...Gas spargeer, 15
...gas-liquid separator, 16...gas-liquid separator, 17...
Combustible gas discharge line, 18... Combustible gas discharge line.
Claims (1)
油循還装置において、オイルリザーバからコンプ
レツサのシール部続いて脱ガスタンクを経て再び
オイルリザーバにオイルを戻すシールオイル循還
ラインと、前記オイルリザーバからコンプレツサ
の軸受部を経て再びオイルリバーザにオイルを戻
す潤滑油循還ラインの、いづれか一方もしくは両
方のラインに気液分離器を設置し当該気液分離器
の設置位置をシールオイル循還ラインにあつては
前記脱ガスタンクの上流部、潤滑オイル循還ライ
ンにあつては前記オイルリザーバの上流部とした
ことを特徴とするコンプレツサ用油循還装置。1. In an oil circulation system for a compressor for compressing combustible gas, there is a seal oil circulation line that returns oil from the oil reservoir to the seal part of the compressor, through a degassing tank, and then back to the oil reservoir, and from the oil reservoir to the compressor. A gas-liquid separator is installed in one or both lines of the lubricating oil circulation line that returns oil to the oil reverser via the bearing, and the installation position of the gas-liquid separator is placed in the seal oil circulation line. An oil circulation device for a compressor, characterized in that the part is an upstream part of the degassing tank, and the lubricating oil circulation line is an upstream part of the oil reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10700280A JPS5732087A (en) | 1980-08-04 | 1980-08-04 | Oil circulation apparatus for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10700280A JPS5732087A (en) | 1980-08-04 | 1980-08-04 | Oil circulation apparatus for compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5732087A JPS5732087A (en) | 1982-02-20 |
| JPS634037B2 true JPS634037B2 (en) | 1988-01-27 |
Family
ID=14447988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10700280A Granted JPS5732087A (en) | 1980-08-04 | 1980-08-04 | Oil circulation apparatus for compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5732087A (en) |
-
1980
- 1980-08-04 JP JP10700280A patent/JPS5732087A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5732087A (en) | 1982-02-20 |
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