JPS6375302A - Bearing lubricant supply device for rotation machine - Google Patents

Bearing lubricant supply device for rotation machine

Info

Publication number
JPS6375302A
JPS6375302A JP61217097A JP21709786A JPS6375302A JP S6375302 A JPS6375302 A JP S6375302A JP 61217097 A JP61217097 A JP 61217097A JP 21709786 A JP21709786 A JP 21709786A JP S6375302 A JPS6375302 A JP S6375302A
Authority
JP
Japan
Prior art keywords
lubricating oil
power source
alternating current
house
motor
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
Application number
JP61217097A
Other languages
Japanese (ja)
Inventor
Masahiko Tanaka
正彦 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP61217097A priority Critical patent/JPS6375302A/en
Publication of JPS6375302A publication Critical patent/JPS6375302A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • F16N13/06—Actuation of lubricating-pumps
    • F16N13/10—Actuation of lubricating-pumps with mechanical drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • F16N13/06—Actuation of lubricating-pumps
    • F16N2013/063—Actuation of lubricating-pumps with electrical drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2260/00—Fail safe
    • F16N2260/20—Emergency

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To enable the supply of bearing lubricant at a time of a house alternating current power source having been lost by, in parallel with an alternating current power source for normal operation, converting an alternating current to a direct current and connecting a storage battery and converting this direct current to an alternating current and making it a power source for a motor for driving a lubricant pump. CONSTITUTION:2A, one of the motors 2A, 2B driving a lubricant pump 1, is supplied with a power source from a house alternating current bus bar 22. As for 2B, the other one, a power source which is converted to a direct current by a battery charger 23 from an alternating current from the house alternating current bus bar 22 and is converted to an alternating current by a converter 24 from a direct current bus bar 20 is supplied. And a storage battery 21 is connected to the direct current bus bar 20. By this, even if the house alternating current power source is lost, the supply of lubricant is made possible by the motor 2B.

Description

【発明の詳細な説明】 〔発明゛の目的〕 （ａ梁上の利用分野） 本発明は回転機械に軸受潤滑油を供給する装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Application on A-Beam) The present invention relates to an apparatus for supplying bearing lubricating oil to a rotating machine.

（従来の技術） 大形回転機械および高速回転機械は、軸受発熱量が大き
く潤滑油の自己冷却だけでは軸受の充分な冷却効果が得
られないため、外部で冷却された潤滑油を自己の軸受部
に供給する強制給油式が採用されている。(Prior technology) In large rotating machines and high-speed rotating machines, bearings generate a large amount of heat, and self-cooling of the lubricating oil alone cannot provide a sufficient cooling effect for the bearings. A forced lubrication system is used.

第２図はこの潤滑油供給装置の系統図の一例で、潤滑油
ポンプ１．電動機２Ａ、２Ｂ、圧力逃し弁３、油冷却器
４、冷却水管５、貯油タンク９等により構成されており
１回転機械７とは軸受潤滑油供給管６．及び戻り管８と
によって接続されている。FIG. 2 is an example of a system diagram of this lubricating oil supply device, in which the lubricating oil pump 1. It is composed of electric motors 2A, 2B, a pressure relief valve 3, an oil cooler 4, a cooling water pipe 5, an oil storage tank 9, etc., and the one-rotation machine 7 is comprised of a bearing lubricating oil supply pipe 6. and a return pipe 8.

潤滑油ポンプ１は電動機２Ａ、　２Ｂに直結して３１！
転されるため、回転が停止すれば即、軸受潤滑油の供給
停止となり、供給先の回転機軸受を損傷させてしまうこ
とになる。The lubricating oil pump 1 is directly connected to the electric motors 2A and 2B.
Therefore, if the rotation stops, the supply of bearing lubricating oil will immediately stop, and the bearing of the rotating machine to which it is supplied will be damaged.

このために潤滑油供給装置には予備用を含めた２組の潤
滑油ポンプを持たせポンプ及び電動機の故障に備えるの
が普通である。For this reason, the lubricating oil supply system is usually equipped with two sets of lubricating oil pumps, including a spare one, in case the pump or motor fails.

そしてこの電動機の電源は交流電源とし、第３図に示す
ように所内停電による２台の電動機運転不能の事態をさ
けるため電動機２Ａ、　２Ｂの電源は別の系統からとる
ことが多い。The power source for this motor is an AC power source, and as shown in Fig. 3, the power source for the motors 2A and 2B is often taken from a separate system to avoid a situation in which the two motors become inoperable due to an in-station power outage.

この配慮によって、ポンプ及び［！ＪＪ機の機械的故障
及び１台の電動機電源の喪失に対して、直ちに軸受潤滑
油の供給停止となる事態から免かれられるが、所内電源
全停、すなわち両型動機の電源同時喪失が生じた場合に
は軸受潤滑油は供給不能となるので、軸受潤滑油の供給
を受けいる回転機械は当然速やかにその運転を停止しな
ければならない。With this consideration, the pump and [! In the event of a mechanical failure of the JJ machine and loss of power to one motor, the situation would be avoided where the supply of bearing lubricating oil would be cut off immediately, but a complete power outage at the station, that is, a simultaneous loss of power to both types of motors, occurred. In such a case, the bearing lubricating oil cannot be supplied, so the rotating machinery that receives the bearing lubricating oil must immediately stop its operation.

この場合、回転降下中及び停止直後の軸受は運転時の余
熱の為潤滑油なしの状態では、軸受の焼付けを生じる恐
れがある。特に、タービン、発電機などの高速大形機、
大形ブロワ−、ファンなどの慣性定数が大きいため完全
停止に至る時間がおよそ２０分以上要するものは安全停
止のために軸受潤滑油の確保が絶対必要である。In this case, there is a risk that the bearing may seize if there is no lubricating oil because the bearing is still rotating or immediately after it has stopped rotating due to residual heat during operation. In particular, high-speed large machines such as turbines and generators,
For large blowers, fans, etc. that have large inertia constants and require approximately 20 minutes or more to come to a complete stop, it is absolutely necessary to secure bearing lubricating oil for safe stopping.

第４図はこの安全停止のために直流ｔｆｔｔｊＪ機２Ｃ
で駆動する潤滑油ポンプを更に１台追加した場合の電源
系統を示している。Figure 4 shows the DC tfttjJ machine 2C for this safety stop.
This shows the power supply system when one more lubricating oil pump driven by

（発明が解決しようとする問題点） これにより軸受潤滑油供給システムは万全となったが、
直流電動機はブラシのメンテナンスを必要とする上に、
　直流起動機８８Ｃを含め極めて高価であるばかりでな
く、回転機械の付属品としてコンパクトにしておきたい
潤滑油供給装置そのものを大形化させてしまう大きな欠
点を持ってしまうこととなった。(Problem to be solved by the invention) This made the bearing lubricating oil supply system perfect, but
DC motors require brush maintenance, and
Not only is it extremely expensive, including the DC starter 88C, but it also has the major drawback of increasing the size of the lubricating oil supply device itself, which should be kept compact as an accessory for rotating machinery.

本発明は上記の如き従来技術の欠点に鑑み、潤滑油ポン
プ用電動機としては交流電動機を使用するが、所内交流
電源喪失時でも、その運転が継続できる回転機械の軸受
潤滑油供給装置の提供することを目的とする。In view of the above-mentioned drawbacks of the prior art, the present invention provides a bearing lubricating oil supply device for a rotating machine that uses an AC motor as a lubricating oil pump motor and can continue its operation even when the local AC power supply is lost. The purpose is to

【発明の構成〕[Structure of the invention]

（問題点を解決するための手段） 上記目的を達成するために正常運転用交流電源と並列に
、この電源を一旦直流に変換しその直流電源に蓄電池を
接続し、その直流を変換器を介して交流とし、潤滑油ポ
ンプ駆動用電動機の電源とすることを特徴とする。(Means for solving the problem) In order to achieve the above purpose, in parallel with the AC power supply for normal operation, this power supply is once converted to DC power, a storage battery is connected to the DC power supply, and the DC power is connected to the DC power supply through a converter. It is characterized in that it is an alternating current and is used as a power source for an electric motor for driving a lubricating oil pump.

（作　用） 本発明においては潤滑油供給装置の潤滑油ポンプ用電動
機の電源として、直流電源から変換した交流電源を使用
することにより、所内交流電源喪失時でも、軸受潤滑油
を回転機械の軸受に供給することができる。(Function) In the present invention, by using an AC power source converted from a DC power source as a power source for the lubricating oil pump motor of the lubricating oil supply device, even when the on-site AC power source is lost, the bearing lubricating oil can be supplied to the bearings of rotating machinery. can be supplied to

（実施例） 以下本発明の実施例について第１図を参照して説明する
。第３図及び第４図と同一のものについては、同一番号
を付して説明は省略する。(Example) An example of the present invention will be described below with reference to FIG. Components that are the same as those in FIGS. 3 and 4 are given the same numbers and their explanations will be omitted.

第１図は１台の交流電動機の電源は従来どおり所内交流
電源とし、残り１台の電源は変換装置により直流から交
流へ変換された交流（以下変換交流と呼び、所内交流と
区別する）としたものである。Figure 1 shows that the power source for one AC motor is the in-house AC power supply as before, and the remaining power source is an AC that has been converted from DC to AC by a converter (hereinafter referred to as converted AC to distinguish it from in-house AC). This is what I did.

直流母線２０は、Ｗｆｆｉ池２１からの直流と所内交流
毒腺２２から充電器２３により変換された直流との２つ
により構成されている。The DC bus 20 is composed of two parts: a DC from the Wffi pond 21 and a DC converted from the in-house AC poison gland 22 by the charger 23.

常時は充電器２３を介した直流が供給されており直流を
必要とする非常照明、各設備制御電圧用等に給電してい
る。Normally, direct current is supplied via the charger 23, and power is supplied to emergency lighting that requires direct current, various equipment control voltages, etc.

所内交流電源２２が喪失した場合、充電器２３を介して
供給されていた直流は同時に喪失するが、蓄電池２１の
直流電圧が代りに供給されるので直流母ｖＡ２０は交流
電源喪失の影響を全く受けずに済む。When the station AC power supply 22 is lost, the DC supplied via the charger 23 is also lost, but the DC voltage from the storage battery 21 is supplied instead, so the DC power source vA20 is not affected by the loss of AC power at all. No need to worry.

そこで少くとも１台の潤滑油ポンプ用電動機の電源は、
この無停電の直流を変換装置（インバータ）２４を介し
て所内交流電源と同じ周波数、電圧。Therefore, the power source for at least one lubricating oil pump motor is
This uninterruptible DC is converted to the same frequency and voltage as the in-house AC power supply via a converter (inverter) 24.

相数に変換したものとするものである。It is assumed that it has been converted into a phase number.

全常用運転機を所内交流側を電源とする交流電動機２Ａ
とした場合、交流ｆｕ源の喪失を不足電圧継電器２７、
又は第２図に示す潤滑油ポンプ吐出圧力の低下を圧力ス
イッチ１２で検出し、予備側起動器８８Ｂを投入すれば
、予備側交流電動機２Ｂが速やかに起動し、軸受潤滑油
の供給を継続できる。AC motor 2A that uses the in-house AC side as a power source for all regular operation machines
In this case, the loss of the AC fu source is caused by the undervoltage relay 27,
Alternatively, if the pressure switch 12 detects a drop in the lubricating oil pump discharge pressure shown in FIG. 2 and turns on the standby starter 88B, the standby AC motor 2B is started immediately and the supply of bearing lubricating oil can be continued. .

一方、常用運転機を変換交流側としていた場合には、所
内交流の喪失には関係なく運転継続が可能である。On the other hand, if the regular operating unit is on the converted AC side, operation can continue regardless of the loss of internal AC.

〔発明の効果〕 このように本発明によれ゛ば交流ｆｌｌｉｉ９Ｘ喪失時
に於ても軸受潤滑油の供給が可能となり、重要な回転機
械の軸受部の焼損防止のろに従来設置していた非常用軸
受油ポンプが削減でき、コストが大幅に低減でき、安定
して回転機械の運転が継続できる回転機械の軸受潤滑油
供給＊Ｉｔ’ｌを提供することができる。[Effects of the Invention] As described above, according to the present invention, it is possible to supply bearing lubricating oil even when AC full 9X is lost, and the emergency oil that was conventionally installed to prevent burnout of the bearings of important rotating machines can be used. It is possible to provide a bearing lubricating oil supply *It'l for a rotating machine that can reduce the number of bearing oil pumps, significantly reduce costs, and allow stable operation of the rotating machine.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す軸受潤滑油供給装置の
系統図、第２図は一般的な軸受潤滑油供給装置の系統図
　、８図、第２図はそれぞれ従来の潤滑油ポンプ用型＠
機の電源系統図である。 １・・・潤滑油ポンプ　　　　２・・・電動機４・・・
油冷却器　　　　　　７・・・回転機械９・・・貯油タ
ンク　　　　　１０・・・軸受潤滑油供給装置１２・・
・圧力スイッチ　　　　２０・・・直流母線２１・・・
菩電池　　　　　　　２２・・・所内交流母線２２Ａ・
・・所内交流母線（Ａ側）２２Ｂ・・・所内交流母線（
Ａ側）２３・・・充電器　　　　　　　２４・・・変換
装置・　２７・・・不足電圧継電ｆＩ８８　Ａ・・・起
動器（常用）８８Ｂ・・・起動機（予備）８８Ｃ・・・
直流起動器代理人　弁理士　　則　近　憲　佑 同　　三俣弘文 第２図Fig. 1 is a system diagram of a bearing lubricating oil supply device showing one embodiment of the present invention, Fig. 2 is a system diagram of a general bearing lubricating oil supply device, Fig. 8, and Fig. 2 are respectively conventional lubricating oil pumps. Type @
It is a power supply system diagram of the machine. 1... Lubricating oil pump 2... Electric motor 4...
Oil cooler 7... Rotating machine 9... Oil storage tank 10... Bearing lubricating oil supply device 12...
・Pressure switch 20...DC bus bar 21...
Bodhisattva battery 22... In-house AC bus 22A.
...Internal AC bus (A side) 22B...Internal AC bus (
A side) 23... Charger 24... Conversion device 27... Undervoltage relay fI88 A... Starter (regular use) 88B... Starter (spare) 88C...
DC starter agent Patent attorney Nori Chika Ken Yudo Hirofumi MitsumataFigure 2

Claims (1)

【特許請求の範囲】[Claims] 正常運転用交流電源と並列に、この電源を一旦直流に変
換しその直流電源に蓄電池を接続し、その直流を変換器
を介して交流とし、潤滑油ポンプ駆動用電動機の電源と
することを特徴とする回転機械の軸受潤滑油供給装置。The feature is that in parallel with the AC power supply for normal operation, this power supply is once converted to DC, a storage battery is connected to the DC power supply, and the DC is converted to AC via a converter and used as a power source for the motor for driving the lubricating oil pump. Bearing lubricating oil supply device for rotating machinery.
JP61217097A 1986-09-17 1986-09-17 Bearing lubricant supply device for rotation machine Pending JPS6375302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61217097A JPS6375302A (en) 1986-09-17 1986-09-17 Bearing lubricant supply device for rotation machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61217097A JPS6375302A (en) 1986-09-17 1986-09-17 Bearing lubricant supply device for rotation machine

Publications (1)

Publication Number Publication Date
JPS6375302A true JPS6375302A (en) 1988-04-05

Family

ID=16698794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61217097A Pending JPS6375302A (en) 1986-09-17 1986-09-17 Bearing lubricant supply device for rotation machine

Country Status (1)

Country Link
JP (1) JPS6375302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100983598B1 (en) 2007-07-05 2010-09-24 가부시키가이샤 고이토 세이사꾸쇼 Motor Pumps for Headlamp Cleaners

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100983598B1 (en) 2007-07-05 2010-09-24 가부시키가이샤 고이토 세이사꾸쇼 Motor Pumps for Headlamp Cleaners

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