JPS634036B2 - - Google Patents
Info
- Publication number
- JPS634036B2 JPS634036B2 JP10700180A JP10700180A JPS634036B2 JP S634036 B2 JPS634036 B2 JP S634036B2 JP 10700180 A JP10700180 A JP 10700180A JP 10700180 A JP10700180 A JP 10700180A JP S634036 B2 JPS634036 B2 JP S634036B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- gas
- line
- reservoir
- 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 58
- 239000007789 gas Substances 0.000 claims description 56
- 238000007872 degassing Methods 0.000 claims description 25
- 238000010926 purge Methods 0.000 claims description 12
- 239000010725 compressor oil Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 8
- 239000002360 explosive Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 230000005856 abnormality Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004880 explosion 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
- 230000013011 mating Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007789 sealing 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、防曝安全性の確
保の面から油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 dissolve in the seal oil used for shaft sealing, so it is important to maintain and prevent the physical properties of the seal oil. From the perspective of ensuring safety from exposure, oil equipment has certain measures in place.
第１図には従来の油装置が示され、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。
このとき正常状憐では、ライン９に可燃ガスが混
入すことはない。 FIG. 1 shows a conventional oil system, in which 1 is an oil reservoir, 2 is a degassing tank,
3 indicates 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, no flammable gas will 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。 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.
一方、シールオイルのうち可燃性ガスと接触し
ない部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。１９はトラツプ、２０はオイルポンプを示
す。 On the other hand, the portion of the seal oil that does not come into contact with the combustible 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.
Also, in order to prevent the formation of an explosive mixture in the upper space of the oil reservoir 1, N 2 or
Air etc. are introduced and discharged from line 11. 19 indicates a trap, and 20 indicates an oil pump.
さて、上述のような従来の油装置においては次
のような問題点がある。 Now, the conventional oil system 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 for degassing and purging flammable gas, utility costs will be high. However, explosion-proof safety is high.
(2) 空気を上記N2の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 above N 2 gas,
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 flow into the degassing tank 2 or oil reservoir 1 through line 5 or line 9, respectively, resulting in an explosive mixture. may form.
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、一部に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、本発明を第２
図を参照しながら詳細に説明する。本発明の特徴
的な点は、脱ガスタンク用のパージガスとして
N2ガス、CO2ガスもしくは燃焼排ガスなどで少
なくともO2を約10％以下しか含まないような不
活性ガスを用い、他方オイルリザーバの気相部を
パージするガスとしては、いつどこでも安価で多
量に得られる空気を使用するようにしたことであ
る。 The present invention was made to solve the above-mentioned conventional drawbacks, and uses inexpensive air in part and reduces the possibility of forming an explosive mixture even in abnormal situations. Hereinafter, the present invention will be described as a second
This will be explained in detail with reference to the drawings. The characteristic point of the present invention is that it can be used as a purge gas for a degassing tank.
Use an inert gas such as N 2 gas, CO 2 gas, or combustion exhaust gas that contains at least about 10% or less O 2.On the other hand, as a gas to purge the gas phase of the oil reservoir, it is cheap and available in large quantities anytime, anywhere. This means that the air that can be obtained is used.
また、コンプレツサ３からのシールオイルを気
液分離器１６に導いてオイル中に溶解した可燃性
ガスを分離した後オイルリザーバ１に戻すように
したことである。 Further, the seal oil from the compressor 3 is introduced to the gas-liquid separator 16 to separate the flammable gas dissolved in the oil, and then returned to the oil reservoir 1.
この気液分離器１６はオイルリザーバと構造が
一体化したものであつてもよいし、オイルの戻り
ラインにＴ字型配管を使用し、オイルに同伴され
たガスを重力の作用で分離後、当該Ｔ字型配管の
枝管から排出するようなものであつてもよい。 This gas-liquid separator 16 may be integrated in structure with the oil reservoir, or a T-shaped pipe may be used for the oil return line, and after the gas entrained in the oil is separated by the action of gravity, It may be something that discharges from a branch pipe of the T-shaped pipe.
コンプレツサ３のシール部を通過したシールオ
イルはライン５を通じて、気液混相液の状態で脱
ガスタンク２に流入するが、このシールオイルは
常に可燃性ガスを脱ガスタンク２に持ち込む。し
たがつて、脱ガスタンク２内の雰囲気が空気であ
れば、爆発性混合気が形成される危険率が高くな
る。そこで、本発明は少なくとも脱ガスタンク２
にはN2ガス、CO2ガスもしくは燃焼排ガスなど
をライン１２および１５を通じて供給しオイル中
に溶解した可燃性ガスを脱気すると共に、同タン
ク内雰囲気の酸素濃度を略10％以下に維持するこ
とによつて、いかに多量の可燃性ガスが流入しよ
うとも常に爆発性混合気の形成を防止する。一方
オイルリザーバ１では、ライン７を通じて脱ガス
タンクからまたライン９を通じてコンプレツサ３
の軸受部から、それぞれ循滑オイルが戻つてくる
が、通常の場合これらのオイルは可燃性ガスを同
伴していないので安全上特に問題となることはな
い。しかし、脱ガスタンク２が不調で脱気が不十
分な場合や、コンプレツサの軸受部ならびにケー
シング合わせ面などに異常が発生した万一の場合
を想定すると、オイルリザーバへの可燃性ガスの
流入の可能性を否定し得ない。 The seal oil that has passed through the seal portion of the compressor 3 flows through the line 5 into the degassing tank 2 in the form of a gas-liquid mixed phase liquid, but this seal oil always brings flammable gas into the degassing tank 2. Therefore, if the atmosphere inside the degassing tank 2 is air, there is a high risk of forming an explosive mixture. Therefore, the present invention provides at least the degassing tank 2.
N 2 gas, CO 2 gas, or combustion exhaust gas is supplied to the tank through lines 12 and 15 to deaerate the flammable gas dissolved in the oil and maintain the oxygen concentration in the atmosphere within the tank to approximately 10% or less. This always prevents the formation of explosive mixtures, no matter how much flammable gas flows in. On the other hand, in the oil reservoir 1, there is a connection from the degassing tank through line 7 and from the compressor 3 through line 9.
Circulating oil returns from the respective bearings, but normally these oils do not carry flammable gas, so there is no particular safety problem. However, in the unlikely event that degassing tank 2 is malfunctioning and degassing is insufficient, or in the unlikely event that an abnormality occurs in the compressor bearing or casing mating surface, flammable gas may flow into the oil reservoir. I can't deny my sexuality.
その対策として潤滑オイル戻りライン９の途中
に、気液分離器１６を設置し、万一の異常時にオ
イルに同伴するガスをオイルから分離して排出ラ
イン１８から系外に取り出し、オイル相のみをオ
イルリザーバに戻すようにした。これによつて可
燃性ガスが気体状でオイルリザーバ１に流入する
可能性はほとんどないことになるが、オイルに溶
存した可燃性ガスの流入はありうるので、ライン
１０より多量の空気をオイルリザーバ１の気相部
に導入しライン１１より排出することによつて可
燃性ガスを少なくとも爆発下限界以下に希釈して
やれば、万一の異常時に対しても爆発を回避でき
ることになる。 As a countermeasure, a gas-liquid separator 16 is installed in the middle of the lubricating oil return line 9, and in the event of an abnormality, the gas accompanying the oil is separated from the oil and taken out of the system through the discharge line 18, and only the oil phase is removed. I put it back into the oil reservoir. This means that there is almost no possibility that flammable gas will flow into the oil reservoir 1 in gaseous form, but it is possible that flammable gas dissolved in the oil will flow into the oil reservoir 1. If the combustible gas is diluted to at least the lower explosive limit by introducing it into the gas phase section of No. 1 and discharging it from line 11, an explosion can be avoided even in the unlikely event of an abnormality.
すなわち、戻りラインから、オイルリザーバ１
に戻るオイルが最大含みうる溶解ガス量は、気液
分離器１６の温度、圧力条件で決まる飽和溶解度
以上にはなりえないこと、またリザーバ１でのオ
イル中から可燃性ガスの蒸発速度を考慮して、リ
ザーバ気相部での可燃性ガス濃度の爆発下限界略
１／１０以下となるようライン１０からのパージ用空
気流量を設定し、ライン１２から供給する脱ガス
タンク２での脱気用ガスとしては、N2ガスを用
い、その流量は脱ガスタンク出口でのオイルフラ
ツシユポイントが約120℃以上となるように調整
して運転したところ、オイルリザーバ１の気相部
の可燃ガス濃度は常に0.05％以下であつた。ま
た、異常時を想定し、第２図のライン９に故意に
可燃性ガスを注入して装置特性を調べたが、リザ
ーバ気相部での可燃性ガス濃度上昇は特にみられ
なかつた。 That is, from the return line, oil reservoir 1
The maximum amount of dissolved gas that can be contained in the oil returned to the tank cannot exceed the saturation solubility determined by the temperature and pressure conditions of the gas-liquid separator 16, and also takes into consideration the evaporation rate of combustible gas from the oil in the reservoir 1. Then, the purge air flow rate from line 10 is set so that the combustible gas concentration in the gas phase of the reservoir is approximately 1/10 or less of the lower explosive limit, and the purge air flow rate from line 12 is set for degassing in degassing tank 2 supplied from line 12. N2 gas was used as the gas, and the flow rate was adjusted so that the oil flash point at the outlet of the degassing tank was approximately 120°C or higher. It was always below 0.05%. In addition, assuming an abnormal situation, combustible gas was intentionally injected into line 9 in FIG. 2 to examine the characteristics of the device, but no particular increase in combustible gas concentration was observed in the gas phase of the reservoir.
以上の通り、本発明は脱ガスタンクの脱気ガス
としてN2ガス等の不活性ガスを用い、リザーバ
用のパージガスとしては空気を用い、同時にリザ
ーバへ戻る循滑オイルを気液分離器を通すことに
よつてオイル中の可燃性ガスを系外に逃がし、未
然にリザーバへの流入を防止するので、従来のも
のと比較し、経済性を高めるとともに安全性も確
保できる。 As described above, the present invention uses an inert gas such as N 2 gas as the degassing gas in the degassing tank, uses air as the purge gas for the reservoir, and at the same time passes the circulating oil returning to the reservoir through a gas-liquid separator. This allows flammable gas in the oil to escape from the system and prevents it from entering the reservoir, making it more economical and safer than conventional systems.
第１図は従来のコンプレツサ用油装置を示す
図、第２図は本発明方法の実施に用いられるコン
プレツサ用油装置の示す図である。
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、５，５……シールオイル戻りライン、
６……シールオイル分岐点、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、９，９……潤滑オイル戻しライン、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……脱ガスタンク気相部パージライン、
１６……気液分離器、１８……可燃性ガス排出ラ
イン、１９……トラツプ、２０……ポンプ。
FIG. 1 is a diagram showing a conventional compressor oil system, and FIG. 2 is a diagram showing a compressor oil system used for carrying out the method of the present invention. 1... Oil reservoir, 2... Degassing tank,
3... Compressor, 4... Seal oil take-out line, 5, 5... Seal oil return line,
6... Seal oil branch point, 7... Seal oil line after degassing, 8... Lubricating oil take-out line, 9,9... 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...Degassing tank gas phase purge line,
16... Gas-liquid separator, 18... Flammable gas discharge line, 19... Trap, 20... Pump.
Claims (1)
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、前記シ
ール部を通過する際に処理ガスと接触しないシー
ルオイルは脱ガスタンクを経由しないで上記オイ
ルリザーバに戻すようにしたコンプレツサ用油装
置において、脱ガスタンクには少なくとも酸素濃
度が10％以下の不活性ガスを用いてオイルに溶解
した可燃ガスの脱気を行ない、オイルリザーバの
気相部分は空気でパージすることを特徴とするコ
ンプレツサ用油装置の操作方法。1 A seal oil circulation line that returns oil from the oil reservoir to the seal section of the compressor, through the degassing tank, and back to the oil reservoir, and the seal oil that does not come into contact with the process gas when passing through the seal section does not pass through the degassing tank. In the above-mentioned compressor oil system that returns the oil to the oil reservoir, the combustible gas dissolved in the oil is degassed using an inert gas with an oxygen concentration of at least 10% or less in the degassing tank, and the gas phase portion of the oil reservoir is A method of operating a compressor oil device characterized by purging with air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10700180A JPS5732086A (en) | 1980-08-04 | 1980-08-04 | Operation of hydraulic apparatus for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10700180A JPS5732086A (en) | 1980-08-04 | 1980-08-04 | Operation of hydraulic apparatus for compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5732086A JPS5732086A (en) | 1982-02-20 |
| JPS634036B2 true JPS634036B2 (en) | 1988-01-27 |
Family
ID=14447961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10700180A Granted JPS5732086A (en) | 1980-08-04 | 1980-08-04 | Operation of hydraulic apparatus for compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5732086A (en) |
-
1980
- 1980-08-04 JP JP10700180A patent/JPS5732086A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5732086A (en) | 1982-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6604558B2 (en) | Aircraft fuel inerting system for an airport | |
| US3788039A (en) | Fuel tank inerting system with means to improve thermal stability of fuel | |
| CA2149428C (en) | Improved liquid decontamination apparatus and method | |
| CN1031069C (en) | Improved method for purifying oil | |
| US3948626A (en) | Refueling equipment for aircraft fuel tanks and the like | |
| JP7454025B2 (en) | Systems and methods for gaseous hydrogen recovery at hydrogen fueling stations | |
| US3899099A (en) | Inert gas system and method for tankers | |
| JP6940727B1 (en) | Excess ammonia treatment equipment and treatment method | |
| JP7357726B1 (en) | Fuel supply device that can use various fuels | |
| US5797357A (en) | Apparatus for forming protective films in water feed pipes of boiler | |
| KR20240047494A (en) | Fuel supply device that can use a variety of fuels | |
| US20070026267A1 (en) | Fuel cell system provided with a cooling circuit | |
| JPS634036B2 (en) | ||
| EP0567388A1 (en) | A process for separating a volatile organic compound from a gas | |
| DE2148326A1 (en) | Process and device for filling or emptying low-oxygen protective gas in or from ship hold (s) | |
| DE10126664A1 (en) | Fuel cell system and method for operating the fuel cell system | |
| JPS6228355B2 (en) | ||
| US4411286A (en) | Liquid seal valve | |
| JPS634037B2 (en) | ||
| KR102576207B1 (en) | Ammonia vent prevention and removal apparatus | |
| GB252421A (en) | Improvements in centrifugal liquid purifiers | |
| US2157914A (en) | Hydraulic back pressure arrester | |
| CN223523967U (en) | Screw compressor booster system for combustible gas recovery | |
| SU244936A1 (en) | DEVICE FOR THE PREVENTION OF THE TRANSMISSION OF EXPLOSION OF COMBUSIVE GASES | |
| CN121654896A (en) | System and method for planned emptying and emergency discharging recovery of ship liquid ammonia pipeline |