JPS62149256U - - Google Patents
Info
- Publication number
- JPS62149256U JPS62149256U JP3531086U JP3531086U JPS62149256U JP S62149256 U JPS62149256 U JP S62149256U JP 3531086 U JP3531086 U JP 3531086U JP 3531086 U JP3531086 U JP 3531086U JP S62149256 U JPS62149256 U JP S62149256U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- sealing
- pressure
- oil pump
- regular
- 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
- 238000007789 sealing Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Motor Or Generator Frames (AREA)
Description
第１図は本考案の一実施例を示す密封油供給装
置の配管系統図、第２図および第３図はそれぞれ
異なる他の実施例を示す要部配管系統図、第４図
は第３図の逆止玉形弁を示す縦断面図、第５図は
従来の密封油供給装置の配管系統図である。
１……回転電機であるタービン発電機、２……
軸密封機構、４……油管、５……真空油タンク、
６……補給管、７……常用密封油系統、８……常
用密封油ポンプ、１０……油圧調節弁、１２……
圧力検出装置、１３……非常用密封油ポンプ、１
４……非常用密封油回路、１７……油圧調節弁、
１８……差圧調整弁、２０……圧力保持装置であ
る油圧作動弁、２３……圧力保持装置である電磁
弁、２４……圧力保持装置である逆止玉形弁。
Fig. 1 is a piping system diagram of a sealing oil supply device showing one embodiment of the present invention, Figs. 2 and 3 are main piping system diagrams showing other different embodiments, and Fig. 4 is Fig. 3. FIG. 5 is a longitudinal sectional view showing a check globe valve, and FIG. 5 is a piping system diagram of a conventional sealing oil supply device. 1... Turbine generator which is a rotating electric machine, 2...
Shaft sealing mechanism, 4...oil pipe, 5...vacuum oil tank,
6... Supply pipe, 7... Regular seal oil system, 8... Regular seal oil pump, 10... Hydraulic pressure control valve, 12...
Pressure detection device, 13...Emergency seal oil pump, 1
4...Emergency seal oil circuit, 17...Hydraulic pressure control valve,
18... Differential pressure regulating valve, 20... Hydraulic operated valve as a pressure holding device, 23... Solenoid valve as a pressure holding device, 24... Check globe valve as a pressure holding device.
Claims (1)
油タンクと、この真空油タンク内に軸受給油系統
から油を補給する補給管と、前記真空油タンクか
ら密封油を常用密封油ポンプにより軸密封部に供
給する常用密封油系統と、前記補給管から真空油
タンクを通さずに、非常用密封油ポンプにより軸
密封部に密封油を供給する非常用密封油系統とを
備えたものにおいて、常用密封油回路の圧力低下
時に圧力検出装置にて検出した検出信号で起動す
る非常用密封油ポンプの吐出圧力が所定値に確立
するまでの間、常用密封油回路の圧力を所定値以
下にならないように保持する圧力保持装置を設け
たことを特徴とする密封油供給装置。 (2) 圧力保持装置は、常用密封油ポンプの下流
側に配設され、油圧調節弁で構成された帰還路上
に油圧作動弁を設け、非常用密封油ポンプの吐出
圧力で常時開になつている前記油圧作動弁を閉操
作させるようにしたことを特徴とする実用新案登
録請求の範囲第１項記載の密封油供給装置。 (3) 圧力保持装置は、常用密封油ポンプの下流
側に配設され、油圧調節弁で構成された帰還路上
に電磁弁を設け、この電磁弁を圧力検出装置の検
出信号で閉操作させるようにしたことを特徴とす
る実用新案登録請求の範囲第１項記載の密封油供
給装置。 (4) 圧力保持装置は、常用密封油ポンプの下流
側に配設された逆止玉形弁と、非常用密封油ポン
プの下流側に配設された逆止弁とを連通し、非常
用密封油ポンプの運転時、その吐出圧力で前記逆
止玉形弁を閉操作させるようにしたことを特徴と
する実用新案登録請求の範囲第１項記載の密封油
供給装置。[Scope of Claim for Utility Model Registration] (1) A vacuum oil tank that stores sealing oil to be supplied to a rotating electrical machine, a supply pipe that supplies oil from a bearing oil supply system to this vacuum oil tank, and a seal from the vacuum oil tank. A regular sealing oil system that supplies oil to the shaft sealing part using a regular sealing oil pump, and an emergency sealing oil system that supplies sealing oil to the shaft sealing part using an emergency sealing oil pump without passing through the vacuum oil tank from the supply pipe. When the pressure in the regular seal oil circuit drops, the emergency seal oil pump, which is activated by the detection signal detected by the pressure detection device, is activated by the detection signal until the discharge pressure of the emergency seal oil pump is established at a predetermined value. 1. A sealing oil supply device comprising a pressure holding device for holding the pressure so that the pressure does not fall below a predetermined value. (2) The pressure holding device is installed on the downstream side of the regular seal oil pump, and a hydraulically operated valve is provided on the return path consisting of a hydraulic control valve, and is kept open at all times by the discharge pressure of the emergency seal oil pump. The sealing oil supply device according to claim 1, wherein the hydraulically operated valve is closed. (3) The pressure holding device is installed on the downstream side of the regular sealed oil pump, and a solenoid valve is provided on the return path consisting of a hydraulic control valve, and the solenoid valve is closed by a detection signal from the pressure detection device. A sealing oil supply device according to claim 1 of the utility model registration claim, characterized in that: (4) The pressure holding device communicates the check globe valve disposed downstream of the regular seal oil pump with the check valve disposed downstream of the emergency seal oil pump. The sealing oil supply device according to claim 1, wherein when the sealing oil pump is operated, the discharge pressure of the sealing oil pump is used to close the check globe valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3531086U JPS62149256U (en) | 1986-03-13 | 1986-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3531086U JPS62149256U (en) | 1986-03-13 | 1986-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62149256U true JPS62149256U (en) | 1987-09-21 |
Family
ID=30844685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3531086U Pending JPS62149256U (en) | 1986-03-13 | 1986-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62149256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102200A (en) * | 1987-10-14 | 1989-04-19 | Hitachi Constr Mach Co Ltd | Grease feeder for seal section |
-
1986
- 1986-03-13 JP JP3531086U patent/JPS62149256U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01102200A (en) * | 1987-10-14 | 1989-04-19 | Hitachi Constr Mach Co Ltd | Grease feeder for seal section |
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