[특허]Circulating dielectric oil cooling system for canned bearings and canned electronics

Dresser-Rand Company

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Circulating dielectric oil cooling system for canned bearings and canned electronics

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02K-007/09 B23Q-001/70 F04D-029/048 F04D-017/12 F04D-029/058 F04D-029/58
출원번호	US-0110338 (2012-03-29)
등록번호	US-9551349 (2017-01-24)
국제출원번호	PCT/US2012/031240 (2012-03-29)
§371/§102 date	20140212 (20140212)
국제공개번호	WO2012/138545 (2012-10-11)
발명자 / 주소	Tecza, Joseph A. Kidd, H. Allan
출원인 / 주소	Dresser-Rand Company
인용정보	피인용 횟수 : 0 인용 특허 : 300

초록
▼

A cooling system for a rotating machine, such as a centrifugal compressor. Specifically, the cooling system may be configured to cool radial and axial magnetic bearings in the rotating machine and the bearing control system that controls said bearings. The cooling system includes canned magnetic radial bearings on each end of the rotor and a canned bearing control system. The canned bearings and canned bearing control system may be filled with a dielectric cooling fluid and in fluid communication with each other via sealed conduits. Accordingly, the radial magnetic bearings and the bearing control system may be entirely immersed in the dielectric cooling fluid to regulate heat generation. An axial magnetic bearing may also be canned and fluidly coupled to the cooling system to immerse the axial magnetic bearing in the dielectric cooling fluid.

대표
청구항
▼

1. A cooling system for a rotating machine, comprising: a first radial bearing housing arranged about a rotor and having a first radial magnetic bearing sealed therein for levitating the rotor;a second radial bearing housing arranged about the rotor and having a second radial magnetic bearing sealed therein for levitating the rotor;a sealed controller can fluidly coupled to the first and second radial bearing housings and having a bearing control system disposed therein; anda coolant within the first and second radial bearing housings and the controller can such that the first and second radial magnetic bearings and the bearing control system are immersed in the coolant. 2. The system of claim 1, wherein the coolant within the first and second radial bearing housings is a dielectric cooling liquid and the coolant within the controller can is a dielectric gas. 3. The system of claim 1, wherein the coolant is a dielectric cooling liquid. 4. The system of claim 1, further comprising: a first sealed conduit providing fluid communication between the controller can and the first radial bearing housing;a second sealed conduit providing fluid communication between the controller can and the second radial bearing housing; andwiring extending from the bearing control system to the first and second radial bearing housings via the first and second sealed conduits, respectively, the wiring being immersed in the coolant and configured to control the first and second radial magnetic bearings. 5. The system of claim 4, wherein the second sealed conduit is split to form a third sealed conduit and a fourth sealed conduit, the fourth sealed conduit being in fluid communication with the second radial bearing housing. 6. The system of claim 5, further comprising an axial bearing housing arranged about the rotor and having an axial magnetic thrust bearing sealed therein and immersed in the coolant, the axial bearing housing being in fluid communication with the controller can via the third and second sealed conduits. 7. The system of claim 1, further comprising a pump disposed within the controller can and configured to circulate the coolant through the first and second radial bearing housings and the controller can. 8. The system of claim 1, further comprising a pressure equalizer configured to regulate fluid pressure inside the first and second radial bearing housings and the controller can. 9. The system of claim 8, wherein the pressure equalizer is an equalizing bellows. 10. A method for cooling a rotating machine, comprising: arranging a first radial bearing housing about a rotor, the first radial bearing housing having a first radial magnetic bearing sealed therein for levitating the rotor;arranging a second radial bearing housing about the rotor, the second radial bearing housing having a second radial magnetic bearing sealed therein for levitating the rotor;fluidly and sealingly coupling a controller can to the first and second radial bearing housings, the controller can having a bearing control system disposed therein; andimmersing the first and second radial magnetic bearings and the bearing control system in a dielectric liquid coolant. 11. The method of claim 10, further comprising: controlling the first and second radial bearings with the bearing control system, the bearing control system being communicably coupled to the first radial bearing via a first length of wiring that extends from the bearing control system through a first sealed conduit, the bearing control system also being communicably coupled to the second radial bearing via a second length of wiring that extends from the bearing control system through a second sealed conduit; andimmersing the first and second lengths of wiring in the dielectric liquid coolant. 12. The method of claim 11, further comprising circulating the dielectric liquid coolant with a pump through the first and second radial bearing housings and the controller can. 13. The method of claim 11, further comprising regulating a liquid pressure of the dielectric liquid coolant in the first and second radial bearing housings and the controller can with a pressure equalizer. 14. The method of claim 11, further comprising: arranging an axial bearing housing about the rotor, the axial bearing housing having an axial magnetic thrust bearing sealed therein and in fluid communication with the controller can; andimmersing the axial magnetic thrust bearing in the dielectric liquid coolant. 15. A cooling system for a rotating machine, comprising: a first radial bearing housing arranged about a rotor and having a first radial magnetic bearing sealed therein for levitating the rotor;a first sealed conduit extending from the first radial bearing housing;a second radial bearing housing arranged about the rotor and having a second radial magnetic bearing sealed therein for levitating the rotor;a second sealed conduit extending from the second radial bearing housing;a controller can having a bearing control system disposed therein, the controller can being coupled to the first and second sealed conduits with first and second connectors that provide a pressure boundary between the controller can and the first and second sealed conduits;wiring extending from the bearing control system to the first and second radial bearing housings via the first and second sealed conduits, respectively;a first coolant within the first and second radial bearing housings and the first and second sealed conduits, the first and second radial magnetic bearings and the wiring within the first and second sealed conduits being immersed in the first coolant; anda second coolant within the controller can such that the bearing control system and wiring within the controller can are immersed in the second coolant. 16. The system of claim 15, wherein the first coolant is a dielectric cooling liquid. 17. The system of claim 15, wherein the second coolant is a dielectric gas. 18. The system of claim 15, further comprising: a first pressure equalizer fluidly coupled to the first radial bearing housing and configured to regulate fluid pressure within the first radial bearing housing and the first sealed conduit; anda second pressure equalizer fluidly coupled to the second radial bearing housing and configured to regulate fluid pressure within the second radial bearing housing and the second sealed conduit. 19. The system of claim 15, wherein the second sealed conduit is split to form a third sealed conduit and a fourth sealed conduit, the fourth sealed conduit being in fluid communication with the second radial bearing housing. 20. The system of claim 19, further comprising an axial bearing housing arranged about the rotor and having an axial magnetic thrust bearing sealed therein and immersed in the first coolant.

이 특허에 인용된 특허 (300)

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특허 상세정보

Circulating dielectric oil cooling system for canned bearings and canned electronics

초록
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청구항
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이 특허에 인용된 특허 (300)

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특허 상세정보

Circulating dielectric oil cooling system for canned bearings and canned electronics

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이 특허에 인용된 특허 (300)

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