SU150821A1 - Oiled screw seal rotating water supply - Google Patents
Oiled screw seal rotating water supplyInfo
- Publication number
- SU150821A1 SU150821A1 SU754220A SU754220A SU150821A1 SU 150821 A1 SU150821 A1 SU 150821A1 SU 754220 A SU754220 A SU 754220A SU 754220 A SU754220 A SU 754220A SU 150821 A1 SU150821 A1 SU 150821A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- water
- water supply
- screw seal
- oil
- rotating water
- Prior art date
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
Масл ные винтовые уплотнени вращающегос водоподвода, преимущественно роторов турбогенераторов с вод ным охлаждением, известны . Примен емые в насто щее врем уплотнени дают больщую утечку и не могут использоватьс при больщих окружных скорост х.Oil-screwed rotating seals, predominantly water-cooled turbogenerator rotors, are known. The seals currently used have a large leak and cannot be used at high peripheral speeds.
Масл ное винтовое уплотнение, выполненное согласно изобретению, лишено указанных недостатков. В нем дл предотвращени утечки воды из системы водоподвод снабжен запорной воздушной камерой, в которую под избыточным давлением подаетс вода из торцового зазора .между неподвижной и вращающейс трубами водоподвода. Вода, вытесн воздух в пространство между масл ным уплотнением и водой, образует воздушную прослойку.The oil screw seal made according to the invention does not have these disadvantages. Here, in order to prevent water from leaking out of the water supply system, it is equipped with a shut-off air chamber into which water is supplied from the end gap under excessive pressure between stationary and rotating water supply pipes. Water, forcing air into the space between the oil seal and water, forms an air gap.
Дл понижени избыточного давлени неподвижна и вращающа с трубы водоподвода выполнены в виде ионфузора и диффузора, образу эжектор.To reduce the overpressure, the stationary and rotating water supply pipes are made in the form of an ionfusor and a diffuser, forming an ejector.
На чертеже представлена схема масл ного винтового уплотнени .The drawing shows the schematic of the oil screw seal.
В корпусе 1 установлен неподвижный конфузор 2, образующий со стенками корпуса кольцевую щель, в которую входит промежуточна втулка 3, сз заана с вращающимс диффузором 4 при помощи эластичной муфты 5. На наруж ых поверхност х втулки 3 и конфузора 2 выполнена встречна винтова .нарезка. На корпусе установлен маслобак 6 с краном 7, перекрывающим доступ масла из бака в винтовое масл ное уплотнение 8. Запорна камера 9 соединена каналами 10 и 11 с кольцевой полостью А, образованной конфузором, втулкой и корпусом , а каналом 12 с полостью Б.A fixed confuser 2 is installed in the housing 1, which forms an annular gap with the housing walls, which includes an intermediate sleeve 3, and a rotating diffuser 4 with an elastic coupling 5. An opposite screw is made on the outer surfaces of the sleeve 3 and the confuser 2. An oil tank 6 is installed on the housing with a valve 7 that blocks the access of oil from the tank to the screw oil seal 8. The closure chamber 9 is connected by channels 10 and 11 to the annular cavity A formed by the confuser, the sleeve and the housing, and channel 12 to the cavity B.
Неподвижный конфузор и вращающийс диффузор образуют эжектор , позвол ющий снизить избыточное давление воды в полости Б. ЗаA fixed confuser and a rotating diffuser form an ejector, which allows to reduce the excess pressure of water in the cavity B. For
№ 150821No. 150821
счет этого избыточного давлени вода из полости Б сливаетс в запорную камеру 9 по каналу 12 и по кольцевому зазору между конфузОром и промежуточной втулкой в полость Л и далее по каналу 10 в запорную камеру. Воздух из запорной камеры по каналу 11 вытесн етс в полость А. Ввиду того, что винтовое масл ное уплотнение 8 не дает возможности воздуху выйти из полости А, его давление повышаетс . Как только давление воздуха в полости А станет равным избыточному давлению воды в полости Б, вытекание воды из полости Б в камеру прекратитс . Посто нное интенсивное охлаждение за счет протекающей в трубе воды предупреждает перегрев масла в винтовом уплотнении.due to this overpressure, water from cavity B is discharged into the shut-off chamber 9 through channel 12 and along the annular gap between the confuser and the intermediate sleeve into the cavity A and then through channel 10 into the shut-off chamber. The air from the shut-off chamber through the channel 11 is forced into the cavity A. Due to the fact that the screw oil seal 8 does not allow air to escape from the cavity A, its pressure rises. As soon as the air pressure in cavity A becomes equal to the excess pressure of water in cavity B, the outflow of water from cavity B to the chamber will stop. Constant intensive cooling due to the water flowing in the pipe prevents overheating of the oil in the screw seal.
Предмет изобретен.и The subject of the invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU754220A SU150821A1 (en) | 1961-12-06 | 1961-12-06 | Oiled screw seal rotating water supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU754220A SU150821A1 (en) | 1961-12-06 | 1961-12-06 | Oiled screw seal rotating water supply |
Publications (1)
Publication Number | Publication Date |
---|---|
SU150821A1 true SU150821A1 (en) | 1962-11-30 |
Family
ID=48305668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU754220A SU150821A1 (en) | 1961-12-06 | 1961-12-06 | Oiled screw seal rotating water supply |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU150821A1 (en) |
-
1961
- 1961-12-06 SU SU754220A patent/SU150821A1/en active
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