CN205446424U - Cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil - Google Patents
Cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil Download PDFInfo
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- CN205446424U CN205446424U CN201521120970.1U CN201521120970U CN205446424U CN 205446424 U CN205446424 U CN 205446424U CN 201521120970 U CN201521120970 U CN 201521120970U CN 205446424 U CN205446424 U CN 205446424U
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- cooling
- lubricating oil
- thrust bearing
- water pump
- feed water
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Abstract
The utility model discloses a cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil contains: the bearing frame, bearing stand support thrust bearing, the cooling casing, terminal surface and bearing frame fixed connection of cooling casing, the cooling chamber cap, another terminal surface fixed connection of cooling chamber cap and cooling casing, the bearing cap that should cool off chamber cap and bearing frame, cooling casing and thrust bearing forms an inclosed cooling cavity, the lubricating oil pipe, the lubricating oil pipe vertically install on the bearing frame between two parties, the lubricating oil pipe on be equipped with lubricating oil import and lubricating oil export, the temperature higher lubricating oil derivation of this lubricating oil pipe in with thrust bearing, cooling coil, cooling coil install on the bearing frame and pass the bearing frame and be connected with the condenser tube way of cooling outside the cavity, this cooling coil coils the lubricating oil pipe. The utility model discloses can realize the electricity and assist the quick start of pump, also need not the cooling water system who attachs.
Description
Technical field
This utility model relates to the cooling structure of a kind of bearing oil, particularly to the cooling structure of a kind of electronic auxiliary feed water pump thrust bearing lubricating oil.
Background technology
The cooling of bearing is most important for high-speed rotating machine, and the temperature of thrust bearing is also the important performance assessment criteria of the auxiliary pump performance of nuclear power station electricity consumption.Current electric auxiliary pump is essentially horizontal type multi-stage pump, the thrust bearing of pump anti-drive end not only rotating speed is higher, and to bear certain residual axial force, especially under some special operation condition, pump can operate in low flow rate condition for a long time, under this operating mode, the axial thrust of pump becomes big, and thrust bearing temperature is the most too high.Therefore, study thrust bearing lubricating oil cooling structure of good performance, effectively control the temperature of the thrust bearing safe operation important in inhibiting to electric auxiliary pump.In existing technology, the type of cooling that electric auxiliary thrust of pump bearing is conventional has air-cooled and water-cooling jacket cooling, and the version of cooling cavities is complicated, need additional fans or additional outside cooling water system, and cooling effect is the most obvious.
Utility model content
The purpose of this utility model is to provide the cooling structure of a kind of electronic auxiliary feed water pump thrust bearing lubricating oil, can realize the quick startup of electric auxiliary pump, without additional cooling water system.
In order to realize object above, this utility model is achieved through the following technical solutions:
The cooling structure of a kind of electronic auxiliary feed water pump thrust bearing lubricating oil, comprises:
Bearing block, described bearing block support thrust bearing；
Cooling housing, an end face of described cooling housing is fixedly connected with the bearing seat；
Cooling chamber cap, described cooling chamber cap is fixing with another end face of cooling housing to be connected, and this cooling chamber cap forms an airtight cooling cavities with the bearing cap of bearing block, cooling housing and thrust bearing；
Grease conduits, described grease conduits vertical center is arranged on bearing block, and described grease conduits is provided with lubricating oil inlet and lubricating oil outlet, and lubricating oil higher for the temperature in thrust bearing is derived by this grease conduits；
Cooling coil, described cooling coil be arranged on bearing block and through bearing block with cooling cavities outside cooling water pipeline be connected, this cooling coil coil grease conduits.
The described cylinder that cooling housing is band inner chamber.
The outer wall of described cooling housing is provided with some radially projecting floors.
The material of described cooling housing is aluminium alloy.
Described cooling chamber cap is solid cylinder.
The material of described cooling chamber cap is aluminium alloy.
Described grease conduits is hollow cylinder, and the upper surface of described hollow cylinder is provided with lubricating oil inlet, and its lower surface is closed but is provided with a lower end outlet opening at its axle center, and its side is provided with the first outlet opening row and the second outlet opening row.
Under described lower end outlet opening, the first outlet opening row and the second outlet opening row all lubricating oil liquid levels in cooling cavities.
Described cooling coil comprises:
Entrance pipe fitting, described entrance pipe fitting with cooling cavities outside cooling water pipeline be connected, cooling water through entrance pipe fitting enter cooling coil, described cooling water comes from electronic auxiliary feed water pump itself；
Outlet pipe fitting, described outlet pipe fitting with cooling cavities outside cooling water pipeline is connected, cooling water returns to the intake chamber of electronic auxiliary feed water pump through exporting pipe fitting outflow cooling coil；
Outer ring, described outer ring connects with entrance pipe fitting；
Inner ring, described inner ring connects with outer ring and outlet pipe fitting respectively, and described inner ring is arranged on the internal layer of outer ring and coils grease conduits.
Described inner ring connects with outer ring and is bent by pipe, is welded.
This utility model compared with prior art, has the advantage that
The quick startup of electric auxiliary pump can be realized, without additional cooling water system.
Accompanying drawing explanation
Fig. 1 is the profile of the cooling structure of this utility model electronic auxiliary feed water pump thrust bearing lubricating oil；
Fig. 2 is the contour structures schematic diagram cooling down housing in Fig. 1；
Fig. 3 is the profile of grease conduits in Fig. 1；
Fig. 4 is the contour structures schematic diagram of cooling coil in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, this utility model is further elaborated.
The cooling structure of a kind of electronic auxiliary feed water pump thrust bearing lubricating oil, as it is shown in figure 1, comprise: bearing block 1, cooling housing 3, cooling chamber cap 4, grease conduits 5 and cooling coil 6.
As shown in Figure 1, bearing block 1 supported Thrust Bearing 2, in this utility model, electronic auxiliary feed water pump is horizontal type multi-stage pump (the most electric auxiliary pump), thrust bearing 2 is arranged on the anti-drive end of the pump shaft 8 of electric auxiliary pump, when electric auxiliary pump work, thrust bearing 2 also needs to balance certain residual axial force, when the rotating speed of pump shaft 8 is higher or residual axial force is bigger, the easy temperature of thrust bearing 2 is too high, exceed the safe operating temperature of nuclear power station and report to the police, in the present embodiment, thrust bearing 2 is double-row conical bearing, in bearing, outer ring coordinates with pump shaft sleeve and the bearing block 1 of pump shaft 8 respectively.
As depicted in figs. 1 and 2, one end face of cooling housing 3 is connected by bolt is fixing with bearing block 1, in the present embodiment, cooling housing 3 is the cylinder of band inner chamber, its outer wall is provided with some radially projecting floors 301, in addition to the subregion of case top, floor 301 almost spreads over the cylindrical circumference of whole cooling housing 3, this design adds the contact area of cooling housing 3 and air, enhance radiating effect, in the present embodiment, the bar number of floor 301 is 12, and the material of cooling housing 3 is the aluminium alloy that heat dispersion is good.
As shown in Figure 1, cooling chamber cap 4 is bolted to connection with another end face of cooling housing 3, this cooling chamber cap 4 forms an airtight cooling cavities with the sealing member of bearing block 1, cooling housing 3 and the bearing cap 7 of thrust bearing 2 and necessity, it is ensured that thrust bearing lubricating oil in chamber body-internal-circulation without revealing.In the present embodiment, cooling chamber cap 4 is solid cylinder, and the aluminium alloy that its material selection heat dispersion is good, increases further and seals and radiating effect.
nullAs shown in figures 1 and 3，In the present embodiment，Grease conduits 5 is hollow cylinder，Its vertical center is arranged on bearing block 1，Its upper surface is provided with lubricating oil inlet，Its lower surface is closed but is provided with a lower end outlet opening 503 at its axle center，Its side is provided with the first outlet opening row 501 and the second outlet opening row 502，Wherein，Lower end outlet opening 503、Under first outlet opening row 501 and the second outlet opening row 502 all lubricating oil liquid levels in cooling cavities，Lubricating oil higher for temperature in thrust bearing 2 is derived by grease conduits 5，By lubricating oil outlet hole, lower surface 503、High temperature oil in conduit and the low-temperature oil in oil sump are sufficiently mixed by first row lubricating oil outlet hole 501 and secondary series lubricating oil outlet hole 502，Formed on oil sump、The height of lower floor、The circulation of subzero oil.In the present embodiment, the hole count of the first outlet opening row 501 and the second outlet opening row 502 is set to 6.
As shown in Figure 1 and Figure 4, cooling coil 6 be arranged on bearing block 1 and through bearing block 1 with cooling cavities outside cooling water pipeline be connected, this cooling coil 6 coils grease conduits 5.nullIn the present embodiment，Cooling coil 6 comprises and is sequentially communicated: entrance pipe fitting 601、Outer ring 604、Inner ring 603、Outlet pipe fitting 602，Entrance pipe fitting 601 with cooling cavities outside cooling water pipeline be connected，Cooling water enters outer ring 604 through entrance pipe fitting 601，Cooling water comes from electric auxiliary pump itself，The inner housing that the first stage impeller of electric auxiliary pump is corresponding is provided with one-level tap，Cooling water enters outer ring 604 through entrance pipe fitting 601，Outer ring 604 connects with entrance pipe fitting 601，Inner ring 603 is connected with outer ring 604 and outlet pipe fitting 602，Inner ring 603 is arranged on the internal layer of outer ring 604 and coils grease conduits 5，Outlet pipe fitting 602 with cooling cavities outside cooling water pipeline be connected，Cooling water flows into from entrance pipe fitting 601 and enters inner ring 603 through outer ring 604，Flow out cooling coil 6 through outlet pipe fitting 602 again and return to the intake chamber of electronic auxiliary feed water pump；In the present embodiment, inner ring 603 connects with outer ring 604 and is bent by pipe, is welded, material selection rustless steel.Owing to inner ring 603 coils grease conduits 5, therefore, the double-deck cooling coil 6 of optimized design is big with the contact area of bearing oil, and heat transfer effect is obvious, and without additional cooling water supply system.
When deployed, treat that all open pump work and (open pump work to include filling appropriate lubricating oil in cooling cavities, in the present embodiment, the liquid level of lubricating oil is slightly above thrust bearing outer ring, thrust bearing roller can be immersed into) ready after, starting electric auxiliary pump, pump shaft 8 drives thrust bearing 2 to rotate.Owing to the pump efficiency of thrust bearing 2 itself should, lubricating oil will be entered by the both sides of thrust bearing 2, and " pump out " from the centre of thrust bearing 2 and to enter into grease conduits 5, take the heat that thrust bearing 2 sends out of simultaneously, the lubricating oil of higher temperature is entered in oil sump by first outlet opening row the 501, second outlet opening row 502 and lower end outlet opening 503, and mixes with the lubricating oil of lower temperature in oil sump；While the auxiliary pump startup of electricity, the working media pumping pump is entered by the entrance pipe fitting 601 of cooling coil 6 by the one-level tap being arranged on the inner housing that electric auxiliary pump first stage impeller is corresponding as cooling water, and successively after outer ring 604, inner ring 603, flowed out cooling cavities by outlet pipe fitting 602 and returned to the intake chamber of electric auxiliary pump, take away the heat of lubricating oil in oil sump, it is achieved the cooling effect to lubricating oil simultaneously.
In sum, the cooling structure of this utility model electronic auxiliary feed water pump thrust bearing lubricating oil, the quick startup of electric auxiliary pump can be realized, without additional cooling water system.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that the description above is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, multiple amendment of the present utility model and replacement all be will be apparent from.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (10)
1. the cooling structure of an electronic auxiliary feed water pump thrust bearing lubricating oil, it is characterised in that comprise:
Bearing block (1), described bearing block (1) supported Thrust Bearing (2)；
Cooling housing (3), an end face of described cooling housing (3) is fixing with bearing block (1) to be connected；
Cooling chamber cap (4), described cooling chamber cap (4) is fixing with another end face of cooling housing (3) to be connected, and this cooling chamber cap (4) forms an airtight cooling cavities with the bearing cap (7) of bearing block (1), cooling housing (3) and thrust bearing (2)；
Grease conduits (5), described grease conduits (5) vertical center is arranged on bearing block (1), described grease conduits (5) is provided with lubricating oil inlet and lubricating oil outlet, and lubricating oil higher for the temperature in thrust bearing (2) is derived by this grease conduits (5)；
Cooling coil (6), described cooling coil (6) be arranged on bearing block (1) upper and through bearing block (1) with cooling cavities outside cooling water pipeline be connected, this cooling coil (6) coils grease conduits (5).
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 1, it is characterised in that the described cylinder that cooling housing (3) is band inner chamber.
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 1 or 2, it is characterised in that the outer wall of described cooling housing (3) is provided with some radially projecting floors (301).
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 1 or 2, it is characterised in that the material of described cooling housing (3) is aluminium alloy.
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 1, it is characterised in that described cooling chamber cap (4) is solid cylinder.
6. the cooling structure of the electronic auxiliary feed water pump thrust bearing lubricating oil as described in claim 1 or 5, it is characterised in that the material of described cooling chamber cap (4) is aluminium alloy.
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 1, it is characterized in that, described grease conduits (5) is hollow cylinder, the upper surface of described hollow cylinder is provided with lubricating oil inlet, its lower surface is closed but is provided with a lower end outlet opening (503) at its axle center, and its side is provided with the first outlet opening row (501) and the second outlet opening row (502).
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 7, it is characterized in that, under described lower end outlet opening (503), the first outlet opening row (501) and the second outlet opening row (502) all lubricating oil liquid levels in cooling cavities.
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 7, it is characterised in that described cooling coil (6) comprises:
Entrance pipe fitting (601), described entrance pipe fitting (601) with cooling cavities outside cooling water pipeline be connected, cooling water through entrance pipe fitting (601) enter cooling coil (6), described cooling water comes from electronic auxiliary feed water pump itself；
Outlet pipe fitting (602), described outlet pipe fitting (602) with cooling cavities outside cooling water pipeline is connected, cooling water returns to the intake chamber of electronic auxiliary feed water pump through exporting pipe fitting (602) outflow cooling coil (6)；
Outer ring (604), described outer ring (604) connects with entrance pipe fitting (601)；
Inner ring (603), described inner ring (603) connects with outer ring (604) and outlet pipe fitting (602) respectively, and described inner ring (603) is arranged on the internal layer of outer ring (604) and coils grease conduits (5).
The cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil the most as claimed in claim 9, it is characterised in that described inner ring (603) connects with outer ring (604) and bent by pipe, is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521120970.1U CN205446424U (en) | 2015-12-31 | 2015-12-31 | Cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521120970.1U CN205446424U (en) | 2015-12-31 | 2015-12-31 | Cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil |
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| CN205446424U true CN205446424U (en) | 2016-08-10 |
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| CN201521120970.1U Active CN205446424U (en) | 2015-12-31 | 2015-12-31 | Cooling structure of electronic auxiliary feed water pump thrust bearing lubricating oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443586A (en) * | 2015-12-31 | 2016-03-30 | 上海电气凯士比核电泵阀有限公司 | Cooling structure for thrust bearing lubricating oil of motor-driven auxiliary water-feeding pump |
| CN110985868A (en) * | 2018-10-16 | 2020-04-10 | 东莞理工学院 | Equipment lubricating structure for machine manufacturing system |
| CN114857180A (en) * | 2022-04-29 | 2022-08-05 | 深圳嘉利祥精工股份有限公司 | Ball bearing with locating sleeve structure and manufacturing method thereof |
-
2015
- 2015-12-31 CN CN201521120970.1U patent/CN205446424U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443586A (en) * | 2015-12-31 | 2016-03-30 | 上海电气凯士比核电泵阀有限公司 | Cooling structure for thrust bearing lubricating oil of motor-driven auxiliary water-feeding pump |
| CN110985868A (en) * | 2018-10-16 | 2020-04-10 | 东莞理工学院 | Equipment lubricating structure for machine manufacturing system |
| CN110985868B (en) * | 2018-10-16 | 2021-06-15 | 东莞理工学院 | Equipment lubricating structure for machine manufacturing system |
| CN114857180A (en) * | 2022-04-29 | 2022-08-05 | 深圳嘉利祥精工股份有限公司 | Ball bearing with locating sleeve structure and manufacturing method thereof |
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