CN2622437Y - Helium fan - Google Patents
Helium fan Download PDFInfo
- Publication number
- CN2622437Y CN2622437Y CN 03230780 CN03230780U CN2622437Y CN 2622437 Y CN2622437 Y CN 2622437Y CN 03230780 CN03230780 CN 03230780 CN 03230780 U CN03230780 U CN 03230780U CN 2622437 Y CN2622437 Y CN 2622437Y
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- CN
- China
- Prior art keywords
- bearing
- deep hole
- rotating shaft
- utility
- model
- 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.)
- Expired - Lifetime
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- Rolling Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a corollary equipment of the return circuit of high-temperature air cooling reactor, in particular to a helium circulator used in cool reactor under the high temperature, mainly including a pressure vessel, a bearing, a sealing mechanism, a pivot, a cooling impeller and a circulator impeller. The equipment is characterized in that a deep hole is provided on the pivot, the bottom of the deep hole is equipped with at least one cooling hole which is communicated with with the deep hole. With the application of the utility model, the manufacturing cost is reduced, the temperature of the pivot and the bearing is lowered effectively, the overheating, evaporation, melting and leakage of the lubricate oil is avoided, safety of using the helium circulator is guaranteed and the service life of the helium circulator is lengthened.
Description
Technical field:
The utility model relates to a kind of high-temperature gas-cooled reactor one loop corollary equipment, especially relates 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 in the utility model 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 its technical problem that solves the utility model adopts 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.The task that the utility model proposed 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 utility model 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 embodiment of the utility model the utility model is described in further detail:
Fig. 1 is the utility model structure (part) schematic representation.
Fig. 2 is the A portion enlarged view of Fig. 1.
With reference to Fig. 1, Fig. 2.The utility model 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 utility model 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 utility model, bearing and rotating shaft, the bearing, so that bearing, rotating shaft etc. keep normal operating temperature.The visual actual conditions of the utility model are selected several cooling hole for use.
Embodiment 2: with reference to Fig. 1.The utility model 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 the utility model countershaft supporting.
Embodiment 3: with reference to 1 figure, Fig. 2.For preventing the lubricant grease melting leakage of bearing, the utility model has adopted the spiral dynamic seal of dicyclo type mechanism.Promptly in the rotating shaft of the present utility model, 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 |
|---|---|---|---|
| CN 03230780 CN2622437Y (en) | 2003-04-29 | 2003-04-29 | Helium fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230780 CN2622437Y (en) | 2003-04-29 | 2003-04-29 | Helium fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622437Y true CN2622437Y (en) | 2004-06-30 |
Family
ID=34247770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230780 Expired - Lifetime CN2622437Y (en) | 2003-04-29 | 2003-04-29 | Helium fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622437Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529418C (en) * | 2003-04-29 | 2009-08-19 | 上海鼓风机厂有限公司 | A helium blower fan |
| CN102208217A (en) * | 2011-05-19 | 2011-10-05 | 清华大学 | Sealing structure for maintenance of helium circulator of high temperature gas-cooled reactor |
-
2003
- 2003-04-29 CN CN 03230780 patent/CN2622437Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529418C (en) * | 2003-04-29 | 2009-08-19 | 上海鼓风机厂有限公司 | A helium blower fan |
| CN102208217A (en) * | 2011-05-19 | 2011-10-05 | 清华大学 | Sealing structure for maintenance of helium circulator of high temperature gas-cooled reactor |
| CN102208217B (en) * | 2011-05-19 | 2013-06-05 | 清华大学 | Sealing structure for maintenance of helium circulator of high temperature gas-cooled reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090819 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |