CN1542286A - A helium blower fan - Google Patents
A helium blower fan Download PDFInfo
- Publication number
- CN1542286A CN1542286A CNA031166997A CN03116699A CN1542286A CN 1542286 A CN1542286 A CN 1542286A CN A031166997 A CNA031166997 A CN A031166997A CN 03116699 A CN03116699 A CN 03116699A CN 1542286 A CN1542286 A CN 1542286A
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- Prior art keywords
- bearing
- rotating shaft
- deep hole
- present
- cooling
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- Rolling Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Of Bearings (AREA)
Abstract
The present invention relates to loop corollary equipment for high temperature gas cooling reactor, and is especially one main helium blower for high temperature gas cooling reactor. The main helium blower includes mainly pressure casing, bearing, sealing mechanical, rotation shaft, cooling vane wheel and blower vane wheel, and features that the rotation shaft has one deep hole with at least one cooling hole communicated to deep hole in the bottom. The present invention has lowered manufacture cost, lowered rotation shaft and bearing temperature, no overheat evaporation and melting leakage of lubricant oil and grease, high safety and prolonged service life.
Description
Technical field:
The present invention relates to a kind of high-temperature gas-cooled reactor one loop corollary equipment, especially relate to a kind of Helium fan that is used for high-temperature gas-cooled reactor.
Background technique:
At present, be used for the Helium fan of high-temperature gas-cooled reactor, at first its rotating shaft will inevitably produce higher heat in hot environment with when running up, and passes to block bearing, makes lubricant grease melting leakage in the bearing.Select sliding bearing or magnetic bearing for use when the bearing of Helium fan in addition, so because of its complex structure accident susceptibility by thin oil or water lubrication.Moreover the sealing mechanism of bearing adopts reinforced seal or labyrinth seal mode usually, the easy melting leakage of lubricant grease Yin Gaowen in the bearing, and sealing effect is not good.
Summary of the invention:
Technical problem to be solved by this invention provide a kind of improved, can under the state of high temperature, high pressure, can keep the Helium fan of normal operation.The technological scheme that the present invention solves its technical problem employing is: a kind of Helium fan, it mainly comprises pressure vessel, bearing, sealing mechanism, rotating shaft, cooling wheel, draught fan impeller, has the bottom of a deep hole, deep hole to have a cooling hole that communicates with deep hole at least in the rotating shaft.Task proposed by the invention also can further be realized by following technical solution: bearing is a ceramic rolling bearing; Sealing mechanism is the spiral dynamic seal of a dicyclo type mechanism; The spiral dynamic seal of dicyclo type mechanism is with seal closure in the rotating shaft, and an outside thread is arranged on the external diameter of seal closure, have on the internal diameter of seal closure one with external thread rotary to opposite internal thread.Seal closure adopts the stationary fit mode to be connected with the contact position of rotating shaft.The present invention is owing to adopt technique scheme, reduce manufacture cost, reduced the temperature of rotating shaft and bearing effectively, avoided safe in utilization, the working life that prolonged Helium fan that cross thermal evaporation and melting leakage, guaranteed Helium fan of lubricant grease.
Description of drawings:
Below in conjunction with accompanying drawing and specific embodiments of the invention the present invention is described in further detail:
Fig. 1 is structure of the present invention (part) schematic representation.
Fig. 2 is the A portion enlarged view of Fig. 1.
With reference to Fig. 1, Fig. 2.The present invention mainly comprises bearing 1, rotating shaft 2, cooling wheel 3, draught fan impeller 4, there is the bottom of a deep hole 5, deep hole 5 that cooling hole 6 is arranged in the rotating shaft 2, bearing 1 is a ceramic rolling bearing 7, be with seal closure 8 in the rotating shaft 2, one outside thread 9 is arranged on the external diameter of seal closure 8, internal thread 10 is arranged on the internal diameter of seal closure 8.
Embodiment:
Embodiment 1: with reference to Fig. 1.Cooling system (not providing in the accompanying drawing) is connected to deep hole, and power-on makes the present invention in running order, i.e. rotating shaft, cooling wheel, draught fan impeller are in synchronous rotation status.Cooling system was transported to cooled gas deep hole and flowed out rotating shaft through cooling hole this moment, thereby the convective heat exchange of cold and hot gas is carried out in the space outside rotating shaft of the present invention, bearing and rotating shaft, the bearing, so that bearing, rotating shaft etc. keep normal operating temperature.The visual actual conditions of the present invention are selected several cooling hole for use.
Embodiment 2: with reference to Fig. 1.The present invention substitutes sliding bearing of the prior art or magnetic bearing with ceramic rolling bearing.Because of outer shroud within the ceramic rolling bearing and roller all with the high-carbon chromium steel manufacturing, make bearing fatigue reach the longest life-span; And its stupalith has 40% of the steel of low density-only, therefore can satisfy the condition that runs up.What its material had in addition is high temperature resistant, anticorrosive, and performances such as high hardness can both satisfy the job requirement of countershaft supporting of the present invention.
Embodiment 3: with reference to 1 figure, Fig. 2.For preventing the lubricant grease melting leakage of bearing, the present invention has adopted the spiral dynamic seal of dicyclo type mechanism.Promptly in the rotating shaft of the present invention, bearing below be provided with the spiral dynamic seal of a dicyclo type mechanism, the spiral dynamic seal of this dicyclo type mechanism has overlapped one to have internal thread and externally threaded seal closure in the rotating shaft.The external thread rotary of seal closure is to should be opposite with the rotation direction of rotating shaft.When seal closure and rotating shaft were rotated synchronously, the Driving force that produces when utilizing internal thread on the seal closure and outside thread rotation was pushed lubricant grease to bearing all the time, really makes lubricant grease non-leakage.
Claims (4)
1. Helium fan, it mainly comprises pressure vessel, bearing, sealing mechanism, rotating shaft, cooling wheel, draught fan impeller, it is characterized in that: have the bottom of a deep hole, deep hole to have a cooling hole that communicates with deep hole at least in the rotating shaft.
2. a kind of Helium fan according to claim 1 is characterized in that: bearing is a ceramic rolling bearing.
3. a kind of Helium fan according to claim 1 is characterized in that: sealing mechanism is the spiral dynamic seal of a dicyclo type mechanism.
4. a kind of Helium fan according to claim 3 is characterized in that: the spiral dynamic seal of dicyclo type mechanism is with seal closure in the rotating shaft, and an outside thread is arranged on the external diameter of seal closure, have on the internal diameter of seal closure one with external thread rotary to opposite internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031166997A CN100529418C (en) | 2003-04-29 | 2003-04-29 | A helium blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031166997A CN100529418C (en) | 2003-04-29 | 2003-04-29 | A helium blower fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1542286A true CN1542286A (en) | 2004-11-03 |
| CN100529418C CN100529418C (en) | 2009-08-19 |
Family
ID=34320447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031166997A Expired - Fee Related CN100529418C (en) | 2003-04-29 | 2003-04-29 | A helium blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100529418C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418818A (en) * | 2008-11-12 | 2009-04-29 | 张家港市东丰特种风机有限公司 | High-temperature blower |
| CN102606517A (en) * | 2011-01-21 | 2012-07-25 | 中国船舶重工集团公司第七〇四研究所 | Inner and outer combined double-spiral seal |
| CN108252935A (en) * | 2016-12-29 | 2018-07-06 | 上海鼓风机厂有限公司 | Multistage culvert type axial flow compressor |
| CN110397740A (en) * | 2019-08-09 | 2019-11-01 | 中国船舶重工集团公司第七0四研究所 | High-speed screw sealing device |
| CN113327693A (en) * | 2021-05-25 | 2021-08-31 | 西安热工研究院有限公司 | High-temperature gas cooled reactor helium circulator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86207993U (en) * | 1986-10-11 | 1987-12-05 | 李叔义 | Mazy spiral electric submerged pump |
| CN2104345U (en) * | 1991-10-10 | 1992-05-13 | 刘祖益 | Double-screw sealing device |
| CN2288299Y (en) * | 1996-07-17 | 1998-08-19 | 中国石化洛阳石油化工总厂 | Combined sealing shaft sleeve |
| GB2320067A (en) * | 1996-12-09 | 1998-06-10 | Courtaulds Fibres | Pump seals |
| CN2352763Y (en) * | 1997-06-11 | 1999-12-08 | (中日合资)哈尔滨伊高光电技术有限公司 | Plastic spiral oil sealing |
| CN1076090C (en) * | 1999-11-24 | 2001-12-12 | 段继光 | All-ceramic rolling bearing |
| CN2622437Y (en) * | 2003-04-29 | 2004-06-30 | 上海鼓风机厂有限公司 | Helium fan |
-
2003
- 2003-04-29 CN CNB031166997A patent/CN100529418C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418818A (en) * | 2008-11-12 | 2009-04-29 | 张家港市东丰特种风机有限公司 | High-temperature blower |
| CN102606517A (en) * | 2011-01-21 | 2012-07-25 | 中国船舶重工集团公司第七〇四研究所 | Inner and outer combined double-spiral seal |
| CN108252935A (en) * | 2016-12-29 | 2018-07-06 | 上海鼓风机厂有限公司 | Multistage culvert type axial flow compressor |
| CN110397740A (en) * | 2019-08-09 | 2019-11-01 | 中国船舶重工集团公司第七0四研究所 | High-speed screw sealing device |
| CN110397740B (en) * | 2019-08-09 | 2024-06-04 | 中国船舶集团有限公司第七〇四研究所 | High-speed spiral sealing device |
| CN113327693A (en) * | 2021-05-25 | 2021-08-31 | 西安热工研究院有限公司 | High-temperature gas cooled reactor helium circulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100529418C (en) | 2009-08-19 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20200429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |