CN201250673Y - Mid-split type centrifugal main oil pump for TRT - Google Patents
Mid-split type centrifugal main oil pump for TRT Download PDFInfo
- Publication number
- CN201250673Y CN201250673Y CNU2008201405151U CN200820140515U CN201250673Y CN 201250673 Y CN201250673 Y CN 201250673Y CN U2008201405151 U CNU2008201405151 U CN U2008201405151U CN 200820140515 U CN200820140515 U CN 200820140515U CN 201250673 Y CN201250673 Y CN 201250673Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump housing
- ring
- trt
- hub
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000006641 stabilisation Effects 0.000 claims description 10
- 238000011105 stabilization Methods 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 53
- 239000000314 lubricant Substances 0.000 description 9
- 238000005461 lubrication Methods 0.000 description 4
- 238000010977 unit operation Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A mid-split type centrifugal main oil pump for TRT comprises a pump body, an impeller, a sealing ring, an impeller shaft and a steady flow screen, wherein the pump body is a mid-split type pump body, a through-hole is arranged on the center portion of the pump body, a ring chamber A is arranged on the direction perpendicular to the axial line of the through-hole, an oil hole A which communicates outside the pump body is arranged on the wall of the ring chamber A, at least two oil holes B which are run through the inner hole of a wheel hub of the impeller are evenly distributed on the axial ring surface of a wheel disc of the impeller. And the installation mode of all components is that the impeller is arranged in the pump body, the wheel disc of the impeller is arranged in the ring chamber A arranged in the pump body, the wheel hub of the impeller is located in the through-hole on the center portion of the pump body, the sealing ring is located between the wheel hub of the impeller and the wall of the through-hole arranged on the center portion of the pump body to form the labyrinth sealing with the wheel hub of the impeller, the steady flow screen is installed in the ring chamber A arranged in the pump body, the impeller shaft is arranged in the inner hole of the wheel hub of the impeller, and the oil guiding section of the impeller shaft is connected with the wheel hub of the impeller, and the connecting section thereof is connected with a TRT main shaft.
Description
Technical field
The utility model relates to a kind of blast-furnace top gas recovery turbine generator centrifugal main oil pump of (english abbreviation TRT is called for short TRT in below describing) that is used for.
Background technique
TRT is a kind of turbine power generation unit that utilizes the generating of blast furnace gas heat content, during work, blast furnace gas imports through diversion component, gas channeling can be driven the direction of movable vane rotation by variable stator vane angle, movable vane rotation under the driving of blast furnace gas drives main axis rotation acting generating.TRT rotor, generator amature support and axially locating by Hydrodynamic Sliding Bearing, and adding barring mechanism etc. all needs source of lubrication.For guaranteeing the reliability of TRT unit operation, in the prior art, the lubricant oil fuel feeding mainly contains two kinds of schemes: the one, two electric oil pumps are set on the lubricant oil station, and one is equipped with a usefulness; The 2nd, drive oil pump with the TRT main shaft by gear transmission, an electric oil pump is set as auxiliary on the lubricant oil station.This dual mode can both effectively provide lubricant oil to a certain extent, and still: first kind of mode will lose source of lubrication fully in the situation of oil station outage, and will directly consume a large amount of electric energy in normal working; Though the second way has solved the defective that oily station cuts off the power supply, directly consumes a large amount of electric energy, will introduce new lubricating point, processing, assembling difficulty all are enhanced, and oil pump, gear all become the possible breakdown point.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, the centrifugal main oil pump of midsplit type of a kind of TRT of being used for is provided, and the centrifugal main oil pump of this kind is easy for installation, helps effective utilization of the energy, be used with jet pump, can guarantee the lubricant oil that the TRT unit operation is required fully.
The centrifugal main oil pump of midsplit type that is used for TRT described in the utility model comprises the pump housing, impeller, seal ring, impeller shaft and current stabilization net.The pump housing is the midsplit type pump housing, component composition by two symmetrical configuration forms, the center portion of the pump housing is provided with the through hole that is used to install impeller hub and seal ring, is provided with the A ring casing in the direction perpendicular to described through-bore axis, and the ring casing wall is provided with and leads to the outer A oilhole of the pump housing; At least be evenly equipped with two B oilholes (number of B oilhole both can be an even number, can be again odd number) that connect with the impeller hub endoporus on the axial anchor ring of hub disk, the axis normal of described B oilhole is in the impeller hub axis; Impeller shaft is made up of linkage section and Oil Guide section; The current stabilization net is a ring network, and its internal diameter is greater than the external diameter of hub disk.The mounting type of above-mentioned each member: impeller is installed in the pump housing, the wheel disc of impeller is positioned at the set A ring casing of the pump housing, the wheel hub of impeller is positioned at the set through hole in pump housing center portion, seal ring is connected between the set through-hole wall in impeller hub and pump housing center portion and with described through-hole wall, the current stabilization net is installed in the set A ring casing of the pump housing, impeller shaft is arranged in the endoporus of impeller hub, and its Oil Guide section is connected with impeller hub, and its linkage section is connected with the TRT main shaft.
In order to improve the working life of oil pump, adopted labyrinth sealing, promptly the profile of tooth sheet is set at the seal ring inner ring surface, at the circular groove that the setting of impeller hub outer surface and profile of tooth sheet are complementary, described profile of tooth sheet and circular groove form labyrinth sealing.
For the ease of adjusting the axial position of the pump housing, be provided with spacer, described spacer is installed around the outside anchor ring of the pump housing.
The utlity model has following beneficial effect:
1, the pump housing is the midsplit type structure, has solved and the direct-connected assembling difficult problem that produces of TRT main shaft.
2, directly provide power for impeller, reduced the transformation of energy number of times, help effective utilization of the energy and energy-conservation by the TRT main shaft.
3, adopt labyrinth sealing, the working life that helps improving oil pump.
4, the mode that is used of employing and jet pump, having solved centrifugal pump suction capacity difference and lubricating oil return needs contradiction between the height difference, can guarantee the lubricant oil that the TRT unit operation is required fully.
Description of drawings
Fig. 1 is the structure diagram of the centrifugal main oil pump of midsplit type of the TRT of being used for described in the utility model;
Fig. 2 is the outline drawing of the centrifugal main oil pump of midsplit type of the TRT of being used for described in the utility model;
Fig. 3 is the scheme of installation of the centrifugal main oil pump of the midsplit type of the TRT of being used for described in the utility model at the TRT unit;
Fig. 4 is the schematic representation of lubrication system that contains the centrifugal main oil pump of midsplit type of the TRT of being used for described in the utility model.
Among the figure, 1-pump housing, 2-current stabilization net, 3-impeller, 4-pin, 5-seal ring, 6-impeller shaft, 7-screw, 8-A ring casing, 9-A oilhole, 10-B oilhole, 11-impeller shaft linkage section, 12-impeller shaft Oil Guide section, 13-spacer, 14-TRT housing, 15-TRT main shaft, 16-B ring casing, 17-C oilhole, 18-accumulator, 19-be used for the centrifugal main oil pump of midsplit type of TRT, 20-auxiliary oil pump oil outlet safety check, 21-be used for the filler opening safety check of the centrifugal main oil pump of midsplit type of TRT, 22-auxiliary oil pump bypass valve, 23-jet pump, 24-auxiliary oil pump, 25-auxiliary oil pump filler opening valve, 26-fuel tank.
Embodiment
In the present embodiment, be used for TRT the centrifugal main oil pump of midsplit type structure as shown in Figure 1 and Figure 2, mainly form by the pump housing 1, impeller 3, seal ring 5, impeller shaft 6, current stabilization net 2 and spacer 13.
The pump housing 1 is the midsplit type pump housing, component composition by two symmetrical configuration forms, the center portion of the pump housing is provided with the through hole that is used to install impeller hub and seal ring 5, be provided with A ring casing 8 in direction, be symmetrically arranged with two on the wall of A ring casing and lead to the outer A oilhole 9 of the pump housing perpendicular to described through-bore axis.Be evenly equipped with nine B oilholes 10 that connect with the impeller hub endoporus on the axial anchor ring of hub disk, the angle between each B oilhole axis is 40 °, and the axis normal of each B oilhole is in the impeller hub axis, and the endoporus of impeller hub is a shoulder hole.Impeller shaft 6 is made up of linkage section 11 and Oil Guide section 12, the cylindrical multidiameter shaft of linkage section 11 As, and its spindle nose is processed with connecting thread, and the oil inlet end of Oil Guide section 12 is hemispherical, and oil outlet end is the circular arc swiveling body.Current stabilization net 2 is a ring network, and its internal diameter is greater than the external diameter of hub disk.
The assembling mode of each member: impeller 3 is installed in the pump housing 1, and the wheel disc of impeller is positioned at the set A ring casing 8 of the pump housing, and the wheel hub of impeller is positioned at the set through hole in pump housing center portion; Seal ring 5 is between the set through-hole wall in impeller hub and pump housing center portion, be connected with described through-hole wall by pin 4, seal ring 5 inner ring surfaces are provided with the profile of tooth sheet, the impeller hub outer surface is provided with the circular groove that is complementary with the profile of tooth sheet, and described profile of tooth sheet and circular groove form labyrinth sealing; Current stabilization net 2 is installed in the set A ring casing 8 of the pump housing; Impeller shaft 6 is arranged in the endoporus of impeller hub, and the oil outlet end end face of its Oil Guide section 12 is connected with impeller hub by screw 7 by the ladder anchor ring location of impeller hub endoporus, and the spindle nose of its linkage section 11 is connected with the TRT spindle thread; Spacer 9 is the strip shape body of rectangular cross-section, installs around the outside anchor ring of the pump housing 1.
The centrifugal main oil pump of the midsplit type of said structure is used for GT60 type TRT, and its working speed is 3000r/min, and mounting point in the TRT unit and mode are as shown in Figure 3.As can be seen from Figure 3, the TRT housing is the midsplit type housing, be provided with the installation cavity of the centrifugal main oil pump of midsplit type that is used for TRT in the housing,, not only communicated and but also lead to the outer C oilhole 17 of TRT housing with the B ring casing with the B ring casing 16 and the accumulator 18 of described installation cavity coaxial line.The centrifugal main oil pump of the midsplit type of the described structure of present embodiment is installed in the TRT housing, and the spindle nose of impeller shaft 6 linkage sections is connected with TRT main shaft 15, and the oil inlet end of impeller shaft 6 Oil Guide sections is a free end.
The centrifugal main oil pump of midsplit type that present embodiment is described to be used for TRT in the annexation of lubrication system as shown in Figure 4, as can be seen from Figure 4, jet pump 23 is traffic sources, and the centrifugal main oil pump 19 of midsplit type is pressure sources, in unit normal hour, centrifugal main oil pump of midsplit type and jet pump are used; Auxiliary oil pump plays mate-assist in system, work in unit starting, shutdown.
The working method that is used for the centrifugal main oil pump of midsplit type of TRT: lubricant oil enters the impeller hub endoporus of the centrifugal main oil pump 19 of midsplit type vertically, TRT main shaft impeller high speed rotating, under action of centrifugal force, lubricant oil is thrown away from each the B oilhole 10 on the hub disk, the A oilhole 9 of lubricant oil on A ring casing wall that forms high-pressure flow flows out, to each lubricating point.
Claims (3)
1, a kind of centrifugal main oil pump of midsplit type that is used for TRT comprises the pump housing (1), it is characterized in that also comprising impeller (3), seal ring (5), impeller shaft (6) and current stabilization net (2),
The pump housing (1) is the midsplit type pump housing, component composition by two symmetrical configuration forms, the center portion of the pump housing is provided with the through hole that is used to install impeller (3) wheel hub and seal ring (5), be provided with A ring casing (8) in direction perpendicular to described through-bore axis, A ring casing wall is provided with and leads to the outer A oilhole (9) of the pump housing
At least be evenly equipped with two B oilholes (10) that connect with the impeller hub endoporus on the axial anchor ring of hub disk, the axis normal of described B oilhole is in the impeller hub axis, and impeller shaft (6) is made up of linkage section (11) and Oil Guide section (12),
Current stabilization net (2) is a ring network, and its internal diameter is greater than the external diameter of hub disk,
Impeller (3) is installed in the pump housing (1), the wheel disc of impeller is positioned at the set A ring casing (8) of the pump housing, the wheel hub of impeller is positioned at the set through hole in pump housing center portion, seal ring (5) is connected between the set through-hole wall in impeller hub and pump housing center portion and with described through-hole wall, current stabilization net (2) is installed in the set A ring casing (8) of the pump housing, impeller shaft (6) is arranged in the endoporus of impeller hub, its Oil Guide section (12) is connected with impeller hub, and its linkage section (11) is connected with the TRT main shaft.
2, the centrifugal main oil pump of midsplit type that is used for TRT according to claim 1, it is characterized in that seal ring (5) inner ring surface is provided with the profile of tooth sheet, the impeller hub outer surface is provided with the circular groove that is complementary with the profile of tooth sheet, and described profile of tooth sheet and circular groove form labyrinth sealing.
3, the centrifugal main oil pump of midsplit type that is used for TRT according to claim 1 and 2 is characterized in that also being provided with spacer (13), and described spacer is installed around the outside anchor ring of the pump housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201405151U CN201250673Y (en) | 2008-09-26 | 2008-09-26 | Mid-split type centrifugal main oil pump for TRT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201405151U CN201250673Y (en) | 2008-09-26 | 2008-09-26 | Mid-split type centrifugal main oil pump for TRT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250673Y true CN201250673Y (en) | 2009-06-03 |
Family
ID=40746347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201405151U Expired - Lifetime CN201250673Y (en) | 2008-09-26 | 2008-09-26 | Mid-split type centrifugal main oil pump for TRT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250673Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850728A (en) * | 2012-12-03 | 2014-06-11 | 通用电气公司 | Turbomachine flow divider and related turbomachine |
-
2008
- 2008-09-26 CN CNU2008201405151U patent/CN201250673Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850728A (en) * | 2012-12-03 | 2014-06-11 | 通用电气公司 | Turbomachine flow divider and related turbomachine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU CHENGFA ENERGY POWER ENGINEERING CO., LTD. Free format text: FORMER OWNER: CHENGDU ENGINE (GROUP) CO., LTD. Effective date: 20120331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610503 CHENGDU, SICHUAN PROVINCE TO: 610500 CHENGDU, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120331 Address after: 610500 the town of Xindu Xindu District of Chengdu Shulong Avenue South 521 Building No. 166 layer 1-2 Patentee after: CHENGDU CHENGFA SCIENCE & TECHNOLOGY POWER ENGINEERING CO., LTD. Address before: Xindu District of Chengdu city in Sichuan province 610503 Shulong avenue into the industrial park into the Group Technology Center Patentee before: Chengdu Engine (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |