CN201358921Y - Energy-saving horizontal multi-stage centrifugal pump - Google Patents
Energy-saving horizontal multi-stage centrifugal pump Download PDFInfo
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- CN201358921Y CN201358921Y CNU2009200359042U CN200920035904U CN201358921Y CN 201358921 Y CN201358921 Y CN 201358921Y CN U2009200359042 U CNU2009200359042 U CN U2009200359042U CN 200920035904 U CN200920035904 U CN 200920035904U CN 201358921 Y CN201358921 Y CN 201358921Y
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- pump
- housing
- shaft
- pump shaft
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Abstract
The utility model relates to a centrifugal pump, in particular to an energy-saving horizontal multi-stage centrifugal pump. The technical scheme provided by the utility model is that a water outlet section housing and a water inlet section housing are arranged on a base at interval; a middle section housing is arranged between the water outlet section housing and the water inlet section housing; pump shafts are arranged on transversal rotating racks arranged on the water outlet section housing and the water inlet section housing; impellers and guide vanes are arranged on the pump shaft in a pump chamber; a pump tail sealing device is arranged between the water inlet section housing and the pump shaft; water return pipelines are arranged on the water outlet section housing and the water inlet section housing; a pump end sealing body is fixed on the water outlet section housing; a pump end balancing body is arranged between the pump end sealing body and the water outlet section housing; a movable balance disc is fixed on the pump shaft between a static balance disc and the impeller close to the water outlet; annular installation grooves are formed on the movable balance disc on the side wall facing the static balance disc in such a manner that the annular installation grooves are around the pump shaft; and a wear ring is embedded in each annular installation groove. The utility model can balance the axial force of the pump better, and eliminate wastage caused by backflow of bulk of high-pressure water, thereby improving the efficiency of the pump greatly.
Description
Technical field
The utility model relates to a kind of centrifugal pump, especially a kind of energy-saving horizontal multi-stage centrifugal pump.
Background technique
So far never change from world's model utility horizontal multi-stage centrifugal pump, so claim its meaning " traditional horizontal multi-stage centrifugal pump ", see Fig. 1, it is mainly by pump step bearing (roller bearing) 1 ', pump shaft 2 ', pump step bearing carriage 3 ', pump end packing seal 4 ', water exit end 5 ', Balance disc 6 ', final stage stator 7 ', stator 8 ', impeller 9 ', stage casing 10 ', turnbuckle 11 ', inlet segment 12 ', pump tail packing seal (asbestos packing) 13 ', pump tail bearing carriage 14 ', pump screw shaft tube 15 ', pump tail bearing (roller bearing) 16 ', pump coupling 17 ', base 18 ', formations such as water return pipeline 19 ' and pump end axle sleeve 20 '.
The disadvantage of tradition horizontal multi-stage centrifugal pump is its with axial force of Balance disc 6 ' ballast pump, it be by Balance disc 6 ' drive pump shaft back and forth play reach the effect of ballast pump axial force.Meanwhile, high pressure water in the pump housing has 10%～15% to run off from the gap of Balance disc, make traditional horizontal multi-stage centrifugal pump have serious high energy consumption problem, and being the user, the loss phenomenon of this high pressure water can't see from pump housing outside, but it is in esse, and world water pump theoretical work person studying the way of eliminating this high energy consumption problem always, yet fails so far to solve.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of axial force of ballast pump well is provided, and eliminates the high pressure water loss phenomenon that refluxes in a large number, thereby significantly improves the energy-saving horizontal multi-stage centrifugal pump of pump efficiency, good energy-conserving effect.
The technological scheme that provides according to the utility model, water outlet piece housing and inlet segment housing are set on base at interval, has middle piece housing between water exit end housing and the inlet segment housing, the two ends of turnbuckle are separately positioned on water exit end housing and the inlet segment housing and with the water exit end housing, middle piece housing and inlet segment housing compress the formation pump chamber, lateral rotation has been set up pump shaft on water exit end housing and inlet segment housing, be provided with impeller and stator on the pump shaft in pump chamber, has the pump tail sealing device between inlet segment housing and the pump shaft, on water exit end housing and inlet segment housing, be provided with water return pipeline, on the water exit end housing, be fixed with the pump end seal of plate-like, be provided with pump end balanced body between pump end seal and the water exit end housing, fixing static balancing dish on the pump end balanced body, between pump end balanced body and static balancing dish, be provided with the top pressure spring that compresses, be fixed with the dynamic balancing dish at the static balancing dish and near the pump shaft between the impeller of waterexit end, dynamic balancing dish one sidewall is against on the impeller near the waterexit end, in the face of offering ring-type around pump shaft on the dynamic balancing dish sidewall of static balancing dish groove is being installed, in this ring-type groove is installed and is embedded with wear ring, described wear ring the other end embeds static balancing dish sidewall and installs in the groove around the ring-type that pump shaft offers, and has the first seal arrangement of pump between pump end balanced body and pump shaft.
Described pump tail sealing device comprises the pump screw shaft tube that is provided with between inlet segment housing and the pump shaft, near being provided with the tail end that stretches out to pump shaft on the inlet segment housing endoporus wall body of impeller rib is being installed, make tail end installation rib and pump shaft form installation depression, in this installation depression, be provided with the stuffing box packing of pump tail around pump shaft.
Be provided with pump tail bearing carriage on the inlet segment housing, be provided with the pump tail bearing on pump tail bearing carriage, described pump shaft is rotatably connected in the mounting hole of this pump tail bearing.On the pump shaft of pump tail end, be provided with coupling.
The first seal arrangement of described pump comprises the first axle sleeve of the pump that is socketed on the pump end pump shaft, near being provided with the head end that stretches out to pump shaft on the pump end seal endoporus wall body of impeller rib is being installed, make head end installation rib and pump shaft form installation depression around pump shaft, in this installation depression, be provided with the first stuffing box packing of pump, be fixed with pump end Gland on pump end balanced body, described pump end Gland embeds the opening end of this installation depression and with the first stuffing box packing shutoff of pump.It is second road sealing of pump end, can make the pump end not have outer the leakage.
Installation bulge loop center on pump shaft near the pump end seal sidewall of impeller is embedded with lip type oil seal ring between installation bulge loop and pump shaft, described lip type oil seal ring is offering annular recess near centering on pump shaft on the sidewall of impeller.Outside the pump shaft of pump head end, have pump step bearing body, be provided with spacer sleeve in the mounting hole in the pump step bearing body and be connected on angular contact ball bearing on the pump shaft, be provided with the bearing washer that is socketed on the pump shaft between the angular contact ball bearing.
Be socketed with the dash cover on the pump shaft of pump head end, described dash cover two end part are against respectively on angular contact ball bearing and the first axle sleeve of pump, and the angular contact ball bearing that is positioned at the pump head end has two, firmly believe the opposite direction installation during installation.There is cavity in pump end seal fixedly being against on the pump step bearing body on the pump end balanced body between pump end seal inwall and the pump shaft outer wall, offers the through hole that is communicated with this cavity on pump end seal.On pump step bearing body, be provided with pump step bearing gland.
The utility model can significantly improve the efficient of pump and effectively energy-conservation.
Description of drawings
Fig. 1 is existing horizontal multi-stage centrifugal pump structural representation.
Fig. 2 is a horizontal multi-stage centrifugal pump structural representation of the present utility model.
Fig. 3 is the power-saving balanced apparatus structure schematic representation in the utility model.
Embodiment
As shown in the figure: water outlet piece housing 8 and inlet segment housing 14 are set on base 20 at interval, has middle piece housing 12 between water exit end housing 8 and the inlet segment housing 14, the two ends of turnbuckle 13 are separately positioned on water exit end housing 8 and the inlet segment housing 14 and with water exit end housing 8, middle piece housing 12 compresses the formation pump chamber with inlet segment housing 14, lateral rotation has been set up pump shaft 2 on water exit end housing 8 and inlet segment housing 14, be provided with impeller 11 and stator 10 on the pump shaft 2 in pump chamber, has the pump tail sealing device between inlet segment housing 14 and the pump shaft 2, on water exit end housing 8 and inlet segment housing 14, be provided with water return pipeline 21, on water exit end housing 8, be fixed with the pump end seal 4 of plate-like, be provided with pump end balanced body 5 between pump end seal 4 and the water exit end housing 8, fixing static balancing dish 6 on the pump end balanced body 5, between pump end balanced body 5 and static balancing dish 6, be provided with the top pressure spring 25 that compresses, be fixed with dynamic balancing dish 7 at static balancing dish 6 and near the pump shaft 2 between the impeller 11 of waterexit end, in the face of offering ring-type around pump shaft 2 on dynamic balancing dish 7 sidewalls of static balancing dish 6 groove is being installed, in this ring-type groove is installed and is embedded with wear ring 26, described wear ring 26 the other end embed static balancing dish 6 sidewalls and install in the groove around the ring-type that pump shaft 2 offers, and have the first seal arrangement of pump between pump end balanced body 5 and pump shaft 2.
Described pump tail sealing device comprises the pump screw shaft tube 16 that is provided with between inlet segment housing 14 and the pump shaft 2, near being provided with the tail end that stretches out to pump shaft 2 on the inlet segment housing 14 endoporus wall bodies of impeller 11 rib 14a is being installed, make tail end installation rib 14a and pump shaft 2 form installation depression, in this installation depression, be provided with pump tail stuffing box packing 15 around pump shaft 2.Be provided with pump tail bearing carriage 17 on inlet segment housing 14, be provided with pump tail bearing 18 on pump tail bearing carriage 17, described pump shaft 2 is rotatably connected in the mounting hole of this pump tail bearing 18.On the pump shaft 2 of pump tail end, be provided with coupling 19.The first seal arrangement of described pump comprises the first axle sleeve 27 of the pump that is socketed on the pump end pump shaft 2, near being provided with the head end that stretches out to pump shaft 2 on the pump end seal 4 endoporus wall bodies of impeller 11 rib 4a is being installed, make head end installation rib 4a and pump shaft 2 form installation depression around pump shaft 2, in this installation depression, be provided with the first stuffing box packing 28 of pump, be fixed with pump end Gland 29 on pump end balanced body 5, described pump end Gland 29 embeds this opening end that depression is installed and with first stuffing box packing 28 shutoff of pump.
Installation bulge loop 4b center on pump shaft 2 near pump end seal 4 sidewalls of impeller 11 is embedded with lip type oil seal ring 30 between installation bulge loop 4b and pump shaft 2, described lip type oil seal ring 30 is offering annular recess near centering on pump shaft 2 on the sidewall of impeller 11.Outside the pump shaft 2 of pump head end, have pump step bearing body 3, be provided with spacer sleeve in the mounting hole in the pump step bearing body 3 and be connected on angular contact ball bearing 1 on the pump shaft 2, be provided with the bearing washer 31 that is socketed on the pump shaft 2 between the angular contact ball bearing 1.
Be socketed with dash cover 24 on the pump shaft 2 of pump end, described dash overlaps 24 two end part and is against respectively on angular contact ball bearing 1 and the first axle sleeve 27 of pump.The angular contact ball bearing 1 that is positioned at the pump end has two, is that opposite direction is installed.At the pump end seal 4 that fixedly is against on the pump step bearing body 3 on the pump end balanced body 5, there is cavity between pump end seal 4 inwalls and pump shaft 2 outer walls, on pump end seal 4, offer the through hole 4c that is communicated with this cavity.On pump step bearing body 3, be provided with pump step bearing gland 32.
The utility model is a basic structure of utilizing traditional horizontal multi-stage centrifugal pump, and the Balance disc 6 ' of conventional pump is removed, and loads onto the power-saving balanced device of innovation model utility then, just becomes brand-new horizontal multi-stage centrifugal pump.
After energy-saving pump starts running, after high pressure water pumps from final stage stator 9, there is 99.5% high pressure water to pump from pump discharge (upward to), use for the user.At the same time, the strength of equal high pressure water is arranged, press to the bottom surface of (left side) dynamic balancing dish 7, the axial force (one power to the right) that the pressure that makes dynamic balancing dish 7 produce the direction of turning left comes ballast pump.Dig between the driven Balance disc 7 of one micro-high pressure water (about 0.5% below), the static balancing dish 6 and have simultaneously, after enter again in the pump end balanced body 5, become little press water, at last in water return pipeline 19 inflow inlet segments.
This shows that energy-saving pump has only the lubricated damage by water consumption below 0.5%, and conventional pump there is 10%～15% high pressure water loss.Therefore, centrifugal pump of the present utility model can on average improve pump efficiency and reach 5%, average energy-conservationly reaches 7%.
New power-saving balanced device mainly is that dynamic balancing dish 7 is fixed on the pump shaft, when high pressure water pressure is pressed to dynamic balancing dish 7 bottom surfaces, produce one left the power of direction balance the axial force (to the power of right) of pump.Static balancing dish 6 is by top pressure spring 25 (totally 8) effect, it and dynamic balancing dish 7 are tightly touched, after the pump startup running, dig in the middle of driven Balance disc 7 veneers of one trace (about below 0.5%) and become lubricating water film, after become no press water and enter in the balanced body, and other high pressure waters are sealed by the O type circle between the O type circle between static balancing dish 6 and the pump end balanced body 5, pump end balanced body 5 and the water exit end housing 8, do not advance in the pump end balanced body 5.In the outside of dynamic balancing dish 7 are high pressure waters, are minute-pressure water at dynamic balancing dish 7 lefts, the axial force of utilizing the inside and outside pressure reduction of power-saving balanced device to come ballast pump.The axial force of energy-saving pump to the right, the energy-saving pump balancing axial thrust left, this power-saving balanced device can balance 95% axial force, the angular contact ball bearing 1 that residue 5% axial force is installed by two opposite directions of pump head is born.
Claims (10)
1, a kind of energy-saving horizontal multi-stage centrifugal pump, be included in base (20) and go up the water exit end housing (8) and inlet segment housing (14) that is provided with at interval, has middle piece housing (12) between water exit end housing (8) and the inlet segment housing (14), the two ends of turnbuckle (13) are separately positioned on water exit end housing (8) and the inlet segment housing (14) and with water exit end housing (8), middle piece housing (12) compresses the formation pump chamber with inlet segment housing (14), go up lateral rotation at water exit end housing (8) and inlet segment housing (14) and set up pump shaft (2), be provided with impeller (11) and stator (10) on the pump shaft in pump chamber (2), has the pump tail sealing device between inlet segment housing (14) and the pump shaft (2), on water exit end housing (8) and inlet segment housing (14), be provided with water return pipeline (21), it is characterized in that: the pump end seal (4) that on water exit end housing (8), is fixed with plate-like, be provided with pump end balanced body (5) between pump end seal (4) and the water exit end housing (8), pump end balanced body (5) goes up fixedly static balancing dish (6), between pump end balanced body (5) and static balancing dish (6), be provided with the top pressure spring (25) that compresses, be fixed with dynamic balancing dish (7) at static balancing dish (6) and near the pump shaft (2) between the impeller (11) of waterexit end, in the face of offering ring-type around pump shaft (2) on dynamic balancing dish (7) sidewall of static balancing dish (6) groove is being installed, in this ring-type groove is installed and is embedded with wear ring (26), described wear ring (26) the other end embeds static balancing dish (6) sidewall and installs in the groove around the ring-type that pump shaft (2) offers, and has the first seal arrangement of pump between pump end balanced body (5) and pump shaft (2).
2, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1, it is characterized in that: described pump tail sealing device comprises the pump screw shaft tube (16) that is provided with between inlet segment housing (14) and the pump shaft (2), near being provided with the tail end that stretches out to pump shaft (2) on inlet segment housing (14) the endoporus wall body of impeller (11) rib (14a) is being installed, make tail end that rib (14a) is installed and form the installation depression that centers on pump shaft (2), in this installation depression, be provided with pump tail stuffing box packing (15) with pump shaft (2).
3, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1 or 2, it is characterized in that: on inlet segment housing (14), be provided with pump tail bearing carriage (17), be provided with pump tail bearing (18) on pump tail bearing carriage (17), described pump shaft (2) is rotatably connected in the mounting hole of this pump tail roller bearing (18).
4, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 3 is characterized in that: be provided with coupling (19) on the pump shaft (2) of pump tail end.
5, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1, it is characterized in that: the first seal arrangement of described pump comprises the first axle sleeve (27) of the pump that is socketed on the pump end pump shaft (2), near being provided with the head end that stretches out to pump shaft (2) on pump end seal (4) the endoporus wall body of impeller (11) rib (4a) is being installed, make head end that rib (4a) is installed and form the installation depression that centers on pump shaft (2) with pump shaft (2), in this installation depression, be provided with the first stuffing box packing (28) of pump, be fixed with pump end Gland (29) on pump end balanced body (5), described pump end Gland (29) embeds the opening end of this installation depression and with first stuffing box packing (28) shutoff of pump.
6, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1, it is characterized in that: at the installation bulge loop (4b) that centers on pump shaft (2) near pump end seal (4) sidewall of impeller (11), be embedded with lip type oil seal ring (30) between installation bulge loop (4b) and pump shaft (2), described lip type oil seal ring (30) is offering annular recess near centering on pump shaft (2) on the sidewall of impeller (11).
7, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1, it is characterized in that: outside the pump shaft (2) of pump head end, have pump step bearing body (3), be provided with spacer sleeve in the mounting hole in the pump step bearing body (3) and be connected on the angular contact ball bearing (1) that two opposite directions on the pump shaft (2) are installed, be provided with the bearing washer (31) that is socketed on the pump shaft (2) between the angular contact ball bearing (1).
8, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1 is characterized in that: be socketed with dash cover (24) on the pump shaft (2) of pump tail end, described dash cover (24) two end part are against respectively on angular contact ball bearing (1) and the first axle sleeve of pump (27).
9, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1, it is characterized in that: go up the pump end seal (4) that fixedly is against on the pump end balanced body (5) at pump step bearing body (3), there is cavity between pump end seal (4) inwall and pump shaft (2) outer wall, on pump end seal (4), offers the through hole (4c) that is communicated with this cavity.
10, energy-saving horizontal multi-stage centrifugal pump as claimed in claim 1 is characterized in that: be provided with pump step bearing gland (32) on pump step bearing body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200359042U CN201358921Y (en) | 2009-03-04 | 2009-03-04 | Energy-saving horizontal multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200359042U CN201358921Y (en) | 2009-03-04 | 2009-03-04 | Energy-saving horizontal multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358921Y true CN201358921Y (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200359042U Expired - Fee Related CN201358921Y (en) | 2009-03-04 | 2009-03-04 | Energy-saving horizontal multi-stage centrifugal pump |
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| Country | Link |
|---|---|
| CN (1) | CN201358921Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242736A (en) * | 2010-05-11 | 2011-11-16 | 诺沃皮尼奥内有限公司 | Balance drum configuration for compressor rotors |
| WO2017088713A1 (en) * | 2015-11-23 | 2017-06-01 | 上海连成（集团）有限公司 | Multi-stage pump |
-
2009
- 2009-03-04 CN CNU2009200359042U patent/CN201358921Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242736A (en) * | 2010-05-11 | 2011-11-16 | 诺沃皮尼奥内有限公司 | Balance drum configuration for compressor rotors |
| CN102242736B (en) * | 2010-05-11 | 2016-08-17 | 诺沃皮尼奥内有限公司 | Balancing drum for compressor drum configures |
| WO2017088713A1 (en) * | 2015-11-23 | 2017-06-01 | 上海连成（集团）有限公司 | Multi-stage pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20150304 |
|
| EXPY | Termination of patent right or utility model |