CN2821165Y - Heat-proof radiation device for smoke turbine bearing box - Google Patents
Heat-proof radiation device for smoke turbine bearing box Download PDFInfo
- Publication number
- CN2821165Y CN2821165Y CN 200520127028 CN200520127028U CN2821165Y CN 2821165 Y CN2821165 Y CN 2821165Y CN 200520127028 CN200520127028 CN 200520127028 CN 200520127028 U CN200520127028 U CN 200520127028U CN 2821165 Y CN2821165 Y CN 2821165Y
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- water
- water jacket
- flue gas
- bearing housing
- gas turbine
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Abstract
The utility model relates to a circulating water heat insulation water jacket, which is arranged on the inner side of a vortex casing of a flue gas turbine and the lower part of a bearing box body. The circulating water heat insulation water jacket is provided with a water inlet and a water outlet which are connected with a cooling water circulating pump. The heating of radiant heat to the bearing box body can be shielded and blocked by the circulating water heat insulation water jacket; heat can be taken away by circulating water; the circulating water heat insulation water jacket can achieve the purposes of preventing radiant heat and reducing the temperature of the bearing box body; the heat expansion of the front end and the back end of the bearing box body is uniform; the circulating water heat insulation water jacket can overcome the phenomenon of rotor head lifting. The dynamic and static friction chance rate of gas seal and rotors is reduced. A turbine disc can not generate collision with a casing. The operation of two groups of bearings is good. The utility model can ensure the normal operation of a flue gas turbine, and the safety of operation can be enhanced.
Description
Affiliated technical field
The utility model relates to a kind of flue gas turbine expander bearing housing thermal radiation resistant, cooling device, particularly a kind of cooling device that adopts the thermal radiation resistant of circulating water.Reduce the temperature of flue gas turbine expander bearing housing, keep the rotor level, reduce the sound friction, prolong sealing gland and rotor life.
Background technique
From the seventies, China has successfully developed since first flue gas turbine expander, and accumulative total is made more than 100 of flue gas turbine expander.Can flue gas turbine expander be the petrochemical industry catalytic cracking unit, and the key equipment of metallurgy industry energy recovery, and its ride quality quality not only is related to the height of this plant energy consumption, and directly have influence on device and normally move.
When flue gas turbine expander ran well, 700 ℃ high-temperature flue gas was by flue gas turbine expander, and a part of heat heats volute.Volute is by the thermal radiation mode, and the nearest bearing housing front end of the volute of adjusting the distance heats.Thereby make the bearing housing front end and the bearing housing rear end temperature difference reach 60-70 ℃.Because the bearing housing rear and front end temperature difference is very big, two ends thermal expansion difference, the thermal expansion that makes the bearing housing front end is greater than the bearing housing rear end.Front and back bearings raises also inequalityly in bearing housing, and fore bearing is than rear bearing height, and two groups of bearings can not remain on same horizontal line.Rotor is installed on two groups of bearings, and fore bearing is heated and raises relatively, and this has just produced the alleged rotor new line phenomenon of those skilled in the art.Rotor comes back and has a strong impact on the flue gas turbine expander normal operation above certain limit, as makes sealing gland and rotor rub; Cause wheel disc and housing to produce collision; Two groups of bearings quicken damage etc.
Summary of the invention
The purpose of this utility model provides a kind of flue gas turbine expander bearing housing thermal radiation resistant device, reduce the thermal radiation of volute by the insulated water jacket to bearing housing, thereby make the thermal expansion of bearing housing rear and front end even, overcome rotor new line phenomenon, ensure that flue gas turbine expander runs well.
The utility model for the technological scheme that solves rotor new line problem and taked is: in flue gas turbine expander volute inboard or the bearing housing bottom circulating water insulated water jacket is set.The circulating water insulated water jacket has water intake and water outlet, and the water jacket water intake is connected with cooling water circulating pump.Adopt the circulating water insulated water jacket to block, block the heating of radiation heat to bearing housing, and by circulating water heat is taken away, reach thermal radiation resistant, anti-bearing housing thermal expansion is inhomogeneous.
Flue gas turbine expander bearing housing bottom circulating water insulated water jacket structure is: this circulating water insulated water jacket adopts steel plate to be welded on bearing housing front end bottom, and there is water intake circulating water insulated water jacket lower end, and the water jacket interior welds has deflection plate, and there is water outlet the water jacket upper end.Cooling water is entered by water jacket lower end water intake, fully stirs through deflection plate, is discharged by water jacket upper end drain opening again, by cooling water circulating pump heat is taken away.
For circulating water is fully stirred in the insulated water jacket, deflection plate is two blocks of arcuation steel plates, one and bearing housing welding; Another piece and insulated water jacket's welding.
Flue gas turbine expander volute circulates inside water insulated water jacket structure is: this circulating water insulated water jacket is welded on the volute inboard.The circulating water insulated water jacket is made up of top plate, lower panel, water inlet manifold, main sewer etc., adopts dividing plate to be divided at least 2 cooling chambers in the insulated water jacket, and deflection plate is isolated into bent loop with cooling chamber.Current are entered by water inlet manifold, enter cooling chamber by the cooling chamber water intake respectively, and discharge to main sewer by the cooling chamber drain opening circulation back.
In order to have improved the described cooling chamber of cooling effect is 6.4 deflection plates are arranged in each cooling chamber.
In order to increase effect of heat insulation, fill insulant material between circulating water insulated water jacket and volute.
The utility model effect: above-mentioned flue gas turbine expander structure of the present utility model has bigger improvement in design, adopt the circulating water insulated water jacket, reduce of the thermal radiation of flue gas turbine expander volute to bearing housing, reduced the bearing housing temperature, thereby make the thermal expansion of bearing housing rear and front end even, overcome rotor new line phenomenon.Sealing gland and rotor sound friction probability is reduced, and wheel disc and housing can not bump, and two groups of bearing operations are good.The guarantee flue gas turbine expander runs well, and improves the running Security.The utility model meets the needs of flue gas turbine expander and has produced practical effect.It is a new and innovative, progressive, practical new design.
Further specify below in conjunction with the application the drawings and specific embodiments.
Description of drawings
Fig. 1 is the whole sectional view of flue gas turbine expander, expresses the position of bearing housing thermal radiation resistant device in flue gas turbine expander.
Fig. 2 is flue gas turbine expander bearing housing bottom circulating water insulated water jacket (a 6) structural representation.
Fig. 3 is flue gas turbine expander volute circulates inside water insulated water jacket (a 7) structural representation.The direction that arrow referred to is the direction of flow of cooling water.
Among the figure, 1. thermal insulation layer, 2. sealing gland, 3. rotor, 4. volute, 5. circulating water insulated water jacket B, 6. circulating water insulated water jacket A, 7. bearing housing, 8. water intake, 9. deflection plate, 10. deflection plate, 11. drain opening, 12. total water inlets, 13. water inlet manifolds, 14. dividing plate, 15. deflection plates, 16. total drain opening, 17. main sewer, 18. cooling chamber water outlets, 19. cooling chamber water intakes.
Embodiment
Embodiment: consult accompanying drawing 1.The inboard welding of flue gas turbine expander volute (a 4) circulating water insulated water jacket (5); In flue gas turbine expander bearing housing bottom a circulating water insulated water jacket (6) is set.Circulating water insulated water jacket (5,6) can stop thermal radiation the heating to bearing housing (7) that makes progress in the volute (4).Be heated thereby bearing housing (7) front end is reduced, it is even to reach bearing housing (7) front and back ends thermal expansion, overcomes rotor (3) new line phenomenon, thereby the sealing gland of avoiding (2) rubs with rotor (3), and wheel disc and volute (4) generation collision.
Consult accompanying drawing 2.The structure that is located at the circulating water insulated water jacket (6) of flue gas turbine expander bearing housing (7) bottom is: this circulating water insulated water jacket (6) adopts steel plate to be welded on bearing housing (7) front end bottom, there is water intake (8) circulating water insulated water jacket (6) lower end, circulating water insulated water jacket (6) interior welds has deflection plate (9,10), and there is drain opening (11) circulating water insulated water jacket (6) upper end.Cooling water is entered by water jacket lower end water intake (8), through two deflection plates (9,10), is discharged by water jacket upper end drain opening (11) again, by cooling water circulating pump heat is taken away.Water jacket water intake (8) is connected with cooling water circulating pump with drain opening (11).Deflection plate (9,10) is two blocks of arcuation steel plates, one and bearing housing (7) welding; One and insulated water jacket (6) welding.
Consult accompanying drawing 3.The structure that is located at the inboard circulating water insulated water jacket of flue gas turbine expander volute (4) is: this circulating water insulated water jacket is welded on volute (4) inboard.Circulating water insulated water jacket (5) end is welded with water inlet manifold (13) and main sewer (17).Be connected with total water inlet (12) on the water inlet manifold (13), be welded with total water outlet (16) on the main sewer (17).Adopt dividing plate (14) to be divided into 6 cooling chambers in the insulated water jacket (5).4 deflection plates (15) are arranged in each cooling chamber, cooling chamber is isolated into bent loop.Current enter from water inlet manifold (13), enter cooling chamber by 6 cooling chamber water intakes (19) respectively, and discharge to main sewer (17) by cooling chamber drain opening (18) the circulation back.Water jacket total water inlet (12) is connected with cooling water circulating pump.Between circulating water insulated water jacket (5) and volute (4), be provided with thermal insulation layer (1).
The superpower flue gas turbine expander that manufactures and designs by the utility model has dropped into industry operation 16 months, has avoided fully because of the bearing housing front end and back end temperature difference is big, and the bearing housing distortion makes rotor that the phenomenon that comes back take place, and runs well for a long time.
Claims (6)
1, a kind of flue gas turbine expander bearing housing thermal radiation resistant device, it is characterized in that: in flue gas turbine expander volute (4) inboard or bearing housing (7) bottom circulating water insulated water jacket (5,6) is set, circulating water insulated water jacket (5,6) has water intake and water outlet, and the water jacket water intake is connected with cooling water circulating pump.
2, flue gas turbine expander bearing housing thermal radiation resistant device as claimed in claim 1, it is characterized in that: flue gas turbine expander bearing housing (7) bottom circulating water insulated water jacket (6) structure is: this circulating water insulated water jacket (6) adopts steel plate to be welded on bearing housing (7) front end bottom, there is water intake (8) circulating water insulated water jacket (6) lower end, circulating water insulated water jacket (6) interior welds has deflection plate (9,10), and there is drain opening (11) circulating water insulated water jacket (6) upper end.
3, flue gas turbine expander bearing housing thermal radiation resistant device as claimed in claim 2, it is characterized in that: described deflection plate (9,10) is two blocks of arcuation steel plates, one and bearing housing (7) welding; One and insulated water jacket (6) welding.
4, flue gas turbine expander bearing housing thermal radiation resistant device as claimed in claim 1, it is characterized in that: flue gas turbine expander volute (4) circulates inside water insulated water jacket's (5) structure is: this circulating water insulated water jacket (5) is welded on volute (4) inboard, circulating water insulated water jacket (5) is made up of top plate, lower panel, water inlet manifold (13), main sewer (17), dividing plate (14) will be divided at least 2 cooling chambers in the insulated water jacket (5), and deflection plate (15) will be isolated into bent loop in the cooling chamber.
5, flue gas turbine expander bearing housing thermal radiation resistant device as claimed in claim 4, it is characterized in that: described cooling chamber quantity is 6, and 4 deflection plates (15) are arranged in each cooling chamber.
6, as claim 4 or 5 described flue gas turbine expander bearing housing thermal radiation resistant devices, it is characterized in that: fill insulant material between circulating water insulated water jacket (5) and volute (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127028 CN2821165Y (en) | 2005-09-29 | 2005-09-29 | Heat-proof radiation device for smoke turbine bearing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127028 CN2821165Y (en) | 2005-09-29 | 2005-09-29 | Heat-proof radiation device for smoke turbine bearing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821165Y true CN2821165Y (en) | 2006-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520127028 Expired - Lifetime CN2821165Y (en) | 2005-09-29 | 2005-09-29 | Heat-proof radiation device for smoke turbine bearing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821165Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886555A (en) * | 2010-07-09 | 2010-11-17 | 兰州长城机械工程有限公司 | Sealing device for rotor blade of flue gas turbine expander |
| CN102335663A (en) * | 2011-07-30 | 2012-02-01 | 常州天合光能有限公司 | Device for cleaning cooling pipeline of bearing box and using method thereof |
| CN103114880A (en) * | 2012-09-26 | 2013-05-22 | 浙江吉利罗佑发动机有限公司 | Turbine supercharger with cooling water jacket |
| CN103195621A (en) * | 2013-01-07 | 2013-07-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Flow-dividing air filter for vehicle |
-
2005
- 2005-09-29 CN CN 200520127028 patent/CN2821165Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886555A (en) * | 2010-07-09 | 2010-11-17 | 兰州长城机械工程有限公司 | Sealing device for rotor blade of flue gas turbine expander |
| CN102335663A (en) * | 2011-07-30 | 2012-02-01 | 常州天合光能有限公司 | Device for cleaning cooling pipeline of bearing box and using method thereof |
| CN102335663B (en) * | 2011-07-30 | 2013-09-04 | 常州天合光能有限公司 | Device for cleaning cooling pipeline of bearing box and using method thereof |
| CN103114880A (en) * | 2012-09-26 | 2013-05-22 | 浙江吉利罗佑发动机有限公司 | Turbine supercharger with cooling water jacket |
| CN103114880B (en) * | 2012-09-26 | 2015-05-13 | 浙江吉利罗佑发动机有限公司 | Turbine supercharger with cooling water jacket |
| CN103195621A (en) * | 2013-01-07 | 2013-07-10 | 浙江吉利汽车研究院有限公司杭州分公司 | Flow-dividing air filter for vehicle |
| CN103195621B (en) * | 2013-01-07 | 2015-05-13 | 浙江吉利汽车研究院有限公司杭州分公司 | Flow-dividing air filter for vehicle |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060927 |
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| EXPY | Termination of patent right or utility model |