CN203717362U - High-speed hydrogenation feeding pump - Google Patents
High-speed hydrogenation feeding pump Download PDFInfo
- Publication number
- CN203717362U CN203717362U CN201420064271.9U CN201420064271U CN203717362U CN 203717362 U CN203717362 U CN 203717362U CN 201420064271 U CN201420064271 U CN 201420064271U CN 203717362 U CN203717362 U CN 203717362U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- discharge opening
- impeller
- suction port
- cylindrical shell
- 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
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004517 catalytic hydrocracking Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to the technical field of mechanical equipment and especially relates to a high-speed hydrogenation feeding pump. A suction inlet and a discharging opening are arranged at two ends of a barrel; inner shell middle sections which are distributed along an axial direction of a rotating shaft are arranged on the barrel and the rotating shaft; a guide vane and an impeller are arranged between each of the inner shell middle sections and the rotating shaft; a guide vane sealing ring is mounted between the guide vane and the impeller; the adjacent inner shell middle sections are connected through a fastener; each of the inner shell middle sections and the guide vane are also connected through the fastener; a middle section sealing ring and an impeller opening ring are mounted between each of the inner shell middle sections and the impeller; a suction culvert is mounted on the rotating shaft; a pump cover is mounted at the end of the discharging opening of the barrel; a discharging opening sealing device and a suction inlet sealing device are respectively mounted on the outer sides of the pump cover and the end of the suction inlet of the barrel; a thrust bearing is mounted on the outer side of the discharging opening sealing device; a radial bearing is mounted on the outer side of the suction inlet sealing device; a liquid draining pipe is arranged at the bottom of the barrel. The high-speed hydrogenation feeding pump is arranged as a radial subdivision multiple-stage centrifugal pump and is high in lift; the hydraulic efficiency is 5%-7% higher than the pumping efficiency of similar pumps; the high-speed hydrogenation feeding pump has the advantages of reasonable and reliable structure, convenience in maintaining, and the like.
Description
Technical field
The utility model relates to a kind of high speed hydrogenation feed pump, belongs to mechanical equipment technical field.
Background technique
Hydrogenation feed pump is that feedstock oil is pumped and boosted and raw material is transported to a kind of special equipment in reaction furnace, is one of essential capital equipment in hydrogenation plant.Along with the improvement of country to atmospheric pollution ring, the strict demand of motor vehicle exhaust emission, also more and more tighter to the quality requirement of product oil.Hydrocracking unit is widely used in petroleum refinery process.The pressure that feed pump in original hydrogenation plant is pumped is at 15～20mPa, and revolution speed is at 3000r/min.Along with updating of process engineering, in hydrogenation plant, the pump of one section, two sections, three sections hydrogenation feed pump is pumped pressure at 25～30mPa.The rotating speed of original hydrogenation feed pump has not reached the needed process parameter of device, must adopt the hydrogenation feed pump of multistage high revolution to realize.In the multistage centrifugal pump that existing constant speed is rotated, can not meet technological requirement.
Model utility content
The technical problems to be solved in the utility model is: a kind of reliable in structure is provided, maintains easily, and can improve hydraulic efficiency and lift, strengthen the high speed hydrogenation feed pump of Security.
High speed hydrogenation feed pump described in the utility model, comprise cylindrical shell and rotating shaft, cylindrical shell two ends arrange suction port and discharge opening straight up, between cylindrical shell and rotating shaft, inner housing is set, inner housing comprises the inner casing stage casing along rotating shaft axial distribution, the stator and the impeller that fasten are set between inner casing stage casing and rotating shaft, impeller is arranged in rotating shaft, wicket gate seal ring is installed between stator and impeller, between adjacent inner casing stage casing, between inner casing stage casing and stator, be all connected by fastening piece, stage casing seal ring and impeller port ring are installed between inner casing stage casing and impeller from outside to inside successively, in rotating shaft, be provided with to suck and contain body, suck culvert body and be positioned at suction port place, cylindrical shell is installed pump cover at discharge opening end, discharge opening seal arrangement and suction port seal arrangement are installed respectively in the outside of the suction port end of pump cover and cylindrical shell, installed thrust bearing outside discharge opening seal arrangement, radial bearing is installed in suction port seal arrangement outside, radial bearing is positioned at rotating shaft input end inner side, the corresponding discharge opening of cylinder body bottom arranges liquid-discharging tube.
This pump is horizontal Double-casing, and inner housing is sectional multi-stage centrifugal pump, and pump is in the time of maintenance, and while not needing to remove pump inlet/outlet pipeline and not mobile speedup box and motor, the rotor of pump just can split out from the pump cover end of pump; In when sealing maintenance, as long as the middle node of taking apart between pump and speedup box just can be changed sealing, seal and fix rear whole unit without centering centering again, keep in repair very convenient; And double-shell structure can prevent that highly pressurised liquid leakage from causing security incident; The high speed rotating of pump is by directly driving pump startup after prime mover driven gear case speedup, reaching the high-revolving requirement of pump; The suction pipe of pump and discharge pipe all vertically upward arrange, center line horizontal support, meets the tenth edition standard of the API610 of API; Pump mainly contains cylindrical shell, pump cover, suction casing, the parts such as stage casing, stator, impeller and balanced controls form, there is radial bearing and the thrust-bearing of four oil film wedge structures of pressure lubrication at the two ends of pump, the feature of the pump of this kind of structure is that flow is little, pump pressure high, pump efficiency is high, and pump revolution is high, good reliability; Liquid-discharging tube can, by the medium emptying in pump case in the time that pump overhauls, play warming-up simultaneously before pump is driven.
Between described pump cover and discharge opening seal arrangement, balanced controls are set, balanced controls comprise the balancing drum and the pressure ring that are arranged on from inside to outside in rotating shaft, and balancing drum is fastening by balance set and balance gland and pump cover, and pressure ring is fixed on balancing drum by fastening piece.This kind of balanced controls are simple in structure, easily realize.
Described discharge opening seal arrangement comprises the discharge opening closed chamber body fastening with pump cover, the external end of discharge opening closed chamber arranges seal, the external side of discharge opening closed chamber and thrust-bearing are fastening, suction port seal arrangement comprises the suction port closed chamber body fastening with cylindrical shell, between suction port closed chamber body and rotating shaft, stuffing box gland is set, suction port closed chamber body and radial bearing are fastening.
Wound gasket and space washer are set between described cylindrical shell and pump cover.Improve sealing, and then improve transfer efficiency.
The beneficial effects of the utility model are:
Existing hydrogenation feed pump product mainly contains radially two kinds of subdivisions and horizonally split, large and the lift of the flow of the former pump is 2000 meters of left and right, the utility model is subdivision multistage centrifugal pump radially, while having flow 15～100m3, its lift of pump can reach 3000 meters, and hydraulic efficiency improves 5%～7% than the pump efficiency of similar pump, there is the advantage such as reliable, easy to maintenance rational in infrastructure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the local enlarged diagram of inner barrel.
In figure: 1, discharge opening 2, cylindrical shell 3, inner casing stage casing 4, stator 5, impeller 6, wicket gate seal ring 7, suction port 8, rotating shaft 9, suction port closed chamber body 10, stuffing box gland 11, radial bearing 12, rotating shaft input end 13, suck and contain body 14, impeller port ring 15, stage casing seal ring 16, space washer 17, liquid-discharging tube 18, wound gasket 19, thrust-bearing 20, seal 21, discharge opening closed chamber body 22, pump cover 23, balancing drum 24, balance set 25, balance gland 26, pressure ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As depicted in figs. 1 and 2, high speed hydrogenation feed pump described in the utility model, comprise cylindrical shell 2 and rotating shaft 8, cylindrical shell 2 two ends arrange suction port 7 and discharge opening 1 straight up, between cylindrical shell 2 and rotating shaft 8, inner housing is set, inner housing comprises the inner casing stage casing 3 along rotating shaft axial distribution, the stator 4 and the impeller 5 that fasten are set between inner casing stage casing 3 and rotating shaft 8, impeller 5 is arranged in rotating shaft 8, between stator 4 and impeller 5, wicket gate seal ring 6 is installed, between adjacent inner casing stage casing 3, between inner casing stage casing 3 and stator 4, be all connected by fastening piece, stage casing seal ring 15 and impeller port ring 14 are installed between inner casing stage casing 3 and impeller 5 from outside to inside successively, in rotating shaft 8, be provided with to suck and contain body 13, suck culvert body 13 and be positioned at suction port 7 places, cylindrical shell 2 is installed pump cover 22 at discharge opening 1 end, discharge opening seal arrangement and suction port seal arrangement are installed respectively in the outside of suction port 7 ends of pump cover 22 and cylindrical shell 2, installed thrust bearing 19 outside discharge opening seal arrangement, radial bearing 11 is installed in suction port seal arrangement outside, radial bearing 11 is positioned at rotating shaft input end 12 inner sides, the corresponding discharge opening 1 in cylindrical shell 2 bottoms arranges liquid-discharging tube 17.Between pump cover 22 and discharge opening seal arrangement, balanced controls are set, balanced controls comprise the balancing drum 23 and the pressure ring 26 that are arranged on from inside to outside in rotating shaft 8, balancing drum 23 is fastening with pump cover 22 by balance set 24 and balance gland 25, and pressure ring 26 is fixed on balancing drum 23 by fastening piece.Discharge opening seal arrangement comprises the discharge opening closed chamber body 21 fastening with pump cover 22, discharge opening closed chamber body 21 outer ends arrange seal 20, discharge opening closed chamber body 21 outsides and thrust-bearing 19 are fastening, suction port seal arrangement comprises the suction port closed chamber body 9 fastening with cylindrical shell 2, between suction port closed chamber body 9 and rotating shaft 8, stuffing box gland 10 is set, suction port closed chamber body 9 is fastening with radial bearing 11.Wound gasket 18 and space washer 16 are set between cylindrical shell 2 and pump cover 22.
Working procedure:
Liquid enters to suck from suction port 7 to be contained body 13, passes to subordinate's impeller and continue supercharging after impeller 5 superchargings by High Rotation Speed, and stack, is finally transported to discharge opening 1 by final stage stator by liquid successively.
Claims (4)
1. a high speed hydrogenation feed pump, comprise cylindrical shell (2) and rotating shaft (8), it is characterized in that: cylindrical shell (2) two ends arrange suction port (7) and discharge opening (1) straight up, between cylindrical shell (2) and rotating shaft (8), inner housing is set, inner housing comprises along the inner casing stage casing (3) of rotating shaft (8) axial distribution, the stator (4) and the impeller (5) that fasten are set between inner casing stage casing (3) and rotating shaft (8), impeller (5) is arranged in rotating shaft (8), between stator (4) and impeller (5), wicket gate seal ring (6) is installed, between adjacent inner casing stage casing (3), between inner casing stage casing (3) and stator (4), be all connected by fastening piece, stage casing seal ring (15) and impeller port ring (14) are installed between inner casing stage casing (3) and impeller (5) from outside to inside successively, in rotating shaft (8), be provided with to suck and contain body (13), suction culvert body (13) is positioned at suction port (7) and locates, cylindrical shell (2) is installed pump cover (22) at discharge opening (1) end, discharge opening seal arrangement and suction port seal arrangement are installed respectively in the outside of suction port (7) end of pump cover (22) and cylindrical shell (2), installed thrust bearing (19) outside discharge opening seal arrangement, radial bearing (11) is installed in suction port seal arrangement outside, radial bearing (11) is positioned at rotating shaft input end (12) inner side, cylindrical shell (2) the corresponding discharge opening in bottom (1) arranges liquid-discharging tube (17).
2. high speed hydrogenation feed pump according to claim 1, it is characterized in that: between pump cover (22) and discharge opening seal arrangement, balanced controls are set, balanced controls comprise the balancing drum (23) and the pressure ring (26) that are arranged on from inside to outside in rotating shaft (8), balancing drum (23) is fastening with pump cover (22) by balance set (24) and balance gland (25), and pressure ring (26) is fixed on balancing drum (23) by fastening piece.
3. high speed hydrogenation feed pump according to claim 1 and 2, it is characterized in that: discharge opening seal arrangement comprises the discharge opening closed chamber body (21) fastening with pump cover (22), discharge opening closed chamber body (21) outer end arranges seal (20), discharge opening closed chamber body (21) outside is fastening with thrust-bearing (19), suction port seal arrangement comprises the suction port closed chamber body (9) fastening with cylindrical shell, between suction port closed chamber body (9) and rotating shaft (8), stuffing box gland (10) is set, suction port closed chamber body (9) is fastening with radial bearing (11).
4. high speed hydrogenation feed pump according to claim 3, is characterized in that: wound gasket (18) and space washer (16) are set between cylindrical shell (2) and pump cover (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064271.9U CN203717362U (en) | 2014-02-13 | 2014-02-13 | High-speed hydrogenation feeding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064271.9U CN203717362U (en) | 2014-02-13 | 2014-02-13 | High-speed hydrogenation feeding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717362U true CN203717362U (en) | 2014-07-16 |
Family
ID=51156520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420064271.9U Expired - Lifetime CN203717362U (en) | 2014-02-13 | 2014-02-13 | High-speed hydrogenation feeding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443399A (en) * | 2016-01-07 | 2016-03-30 | 上海电气凯士比核电泵阀有限公司 | Self-cooling electric auxiliary water feeding pump |
-
2014
- 2014-02-13 CN CN201420064271.9U patent/CN203717362U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443399A (en) * | 2016-01-07 | 2016-03-30 | 上海电气凯士比核电泵阀有限公司 | Self-cooling electric auxiliary water feeding pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104564717B (en) | Direct driven high-speed turbine vacuum pump and operation method thereof | |
| US20210324866A1 (en) | An individual axis driven three stage counter rotating axial flow pump | |
| CN103352855A (en) | Novel hydrodynamic turbine pump free of shaft seal structure | |
| CN103225624A (en) | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump | |
| CN105090051A (en) | Shielded electric pump | |
| CN103080534A (en) | Pump-turbine system | |
| CN203717362U (en) | High-speed hydrogenation feeding pump | |
| CN205243860U (en) | Double suction helico centrifugal pump | |
| CN103388589B (en) | Vertical water ring vacuum pump | |
| CN203308733U (en) | Traction-level compound molecule pump | |
| RU84074U1 (en) | SEALED PUMP UNIT | |
| CN209875479U (en) | Coaxial symmetrically-arranged multistage hydraulic turbine direct-drive pump | |
| RU196494U1 (en) | Six-section electric pump unit | |
| CN204402911U (en) | The self-priming multistage centrifugal pump of split | |
| CN103147995A (en) | Low-lift vertical planetary gear reduction axial flow pump | |
| CN204984912U (en) | Novel vertical multistage pump of efficient | |
| CN203114661U (en) | Vertical type water ring vacuum pump | |
| CN203655646U (en) | Vertical condensate pump provided with balance device | |
| CN202628534U (en) | Small-flow double-cylinder horizontal multiple-stage centrifugal pump | |
| CN203441755U (en) | Axial suction type sea water desalination high pressure pump | |
| CN208057428U (en) | Easy-to-dismount centrifugal pump | |
| CN111623100A (en) | Single-cavity speed-regulating type hydraulic coupler | |
| CN204213040U (en) | Energy recycles radial suction booster | |
| CN104389811A (en) | Energy reuse radial boosting pump | |
| RU196493U1 (en) | Five-section electric pump unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190523 Granted publication date: 20140716 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220523 Granted publication date: 20140716 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220523 Granted publication date: 20140716 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240213 Granted publication date: 20140716 |
|
| PD01 | Discharge of preservation of patent |