CN204061198U - The middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump - Google Patents
The middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump Download PDFInfo
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- CN204061198U CN204061198U CN201420477895.3U CN201420477895U CN204061198U CN 204061198 U CN204061198 U CN 204061198U CN 201420477895 U CN201420477895 U CN 201420477895U CN 204061198 U CN204061198 U CN 204061198U
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Abstract
The utility model discloses the middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump, comprise the flange that spues, Spit Section, support base plate, seal ring, disappear rotational flow guide vane, supporting plate and Spit Section supporting leg, Spit Section is fixed on the supporting leg of Spit Section, inside, Spit Section is provided with pumping chamber, Spit Section is provided with introducing port, discharge opening and export mouth, introducing port and export mouth are corresponding with upper level impeller and next stage impeller respectively to be arranged, discharge opening is arranged on the upper end of Spit Section and is communicated with the flange that spues, support base plate is arranged on pumping chamber inside and is connected with inside export mouth, it is inner near introducing port side that supporting plate is arranged on pumping chamber, the rotational flow guide vane that disappears to be arranged on supporting plate and to extend to support base plate side, seal ring and export mouth inwall are equipped with.This middle Spit Section, have partial pressure, shunt volume water supply function, flow adjustment range is wide, and fluidised form is good, and efficiency is high.
Description
Technical field
The utility model relates to centrifugal pump technical field, especially relates to the middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump.
Background technique
At present, when a high-pressure feed water water supplying pump is to when needing multiple use occasion of different pressures, such as high and medium voltage, adopts reduction valve to adjust during mouth pressure meets to press and the demand of low-voltage customer usually, but adopt reduction valve to adjust the throttle style meeting consumed energy of mouth pressure, not energy-conservation; Or adopt the pump of the different lift (high and medium voltage output) of multiple stage to provide high pressure, middle pressure and low-pressure water flow to meet the demand of multiple applicable situation respectively, such structure adds number of devices and cost, also occupies more space.
Chinese patent literature (the day for announcing: on August 29th, 2012, notification number: CN202402289U) disclose a kind of self-balancing sectional type multistage centrifugal pump, comprise pump case assembly, rotor assembly, bearing unit, wherein pump case assembly by the suction casing be connected successively, left section, middle Spit Section, final stage Spit Section, right section, middle suction casing forms, described middle Spit Section and final stage Spit Section are formed as the Spit Section of integrated with integrative-structure.Balance tube is connected with between the bearing bracket stand second and the bearing bracket stand first of suction casing side of described middle suction casing side.
Technique scheme is large in order to solve the accumulated error caused because of multiple part combination, expends raw material, the problems such as work efficiency is low.
Chinese patent literature (day for announcing: April 26 nineteen ninety-five notification number: CN2195634Y) discloses a kind of multi-stage-multi-outlet centrifugal pump, be made up of the fore bearing body component of pump case, water intake, impeller, radial stator, water outlet, pump shaft and pump, rear bearing body component, every primary pump all can set out the mouth of a river; Adopt back vane structure balance Multistage centrifugal pump rotor axial force.
Technique scheme is easily killed to solve existing pump or affect safe operation after heavy wear, can not meet the problem of the different floor height fire-fighting spraying of tall building or domestic water.
Chinese patent literature (the day for announcing: on September 3rd, 2003, notification number: CN1439808A) disclose a kind of multistage sectional centrifugal pump be arranged symmetrically with, whole pump is divided into front and rear two-part, two-part impeller inlet direction is contrary, impeller all loads in volute pumping chamber, can use the sealing mechanisms such as floating seal, labyrinth seal, electromagnetic sealing between impeller.When the lubricity of transported medium is better, also can load sliding bearing at this position.First group of non-level impeller dress increasing back sealing ring also makes Novel multistage pump axial force go to zero with the pressure within off-load pipe adjustment increasing back sealing ring scope.Total progression i can be odd number, also can be even number.
Technique scheme adopts the special balancing such as Balance disc, balancing drum mechanism for existing single-suction multilevel segmental centrifugal pump, and complex structure, exists axial float, and pump internal loss is large, runs problem not stably.
In sum, still there is no at present to carry out partial pressure for multistage pump specially in prior art, shunt volume supplies water design, make multistage pump can export pressure and the partial discharge of impeller before it with least disadvantage, remaining flow successfully can be input to again next stage impeller and continue pressurization.
Model utility content
The purpose of this utility model adopts reduction valve to adjust the throttle style meeting consumed energy of mouth pressure to solve multistage pump in prior art, not energy-conservation, and adopt the pump of the different lift (high and medium voltage output) of multiple stage to provide high pressure respectively, middle pressure and low-pressure water flow meet the demand of multiple applicable situation, structure increases complicated, cost is high, the problem taken up room, and a kind of pressure and the partial discharge that can export impeller before it with least disadvantage are provided, remaining flow successfully can be input to again the middle Spit Section that next stage impeller continues the multiple exit horizontal single suction sectional multi-stage centrifugal pump of pressurization.
The utility model realizes the technological scheme that its technical purpose adopts: the middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump, this middle Spit Section to be arranged between multistage pump stage casing and to be connected with the upper level impeller of multistage pump and next stage impeller respectively, comprise the flange that spues, Spit Section, support base plate, seal ring, disappear rotational flow guide vane, supporting plate and Spit Section supporting leg, described Spit Section is fixed on the supporting leg of Spit Section, described inside, Spit Section is provided with pumping chamber, described Spit Section is provided with introducing port, discharge opening and export mouth, described introducing port and export mouth are corresponding with upper level impeller and next stage impeller respectively to be arranged, described discharge opening is arranged on the upper end of Spit Section and is communicated with the flange that spues, described support base plate is arranged on pumping chamber inside and is connected with inside export mouth, it is inner near introducing port side that described supporting plate is arranged on pumping chamber, the described rotational flow guide vane that disappears to be arranged on supporting plate and to extend to support base plate side, described seal ring and export mouth inwall are equipped with.The middle Spit Section of this multiple exit horizontal single suction sectional multi-stage centrifugal pump, by the flange that spues, Spit Section, support base plate, seal ring, disappear rotational flow guide vane, supporting plate, Spit Section supporting leg assembly welding forms, inside, Spit Section is provided with pumping chamber, Spit Section is provided with introducing port, discharge opening and export mouth, support base plate and disappear rotational flow guide vane and supporting plate are separately positioned on pumping chamber inside, this middle Spit Section during use, the number of the discharge opening that can increase as required, series connection loads this middle Spit Section of respective numbers between multistage pump stage casing, introducing port is connected with upper level impeller delivery outlet, export mouth is connected with the inlet opening of next stage impeller, during use, flow enters pumping chamber, part flow exports to user through discharge opening and the flange that spues, remaining part flow is eliminated current circulation through the rotational flow guide vane that disappears and is entered into next stage impeller inlet continuation pressurization by export mouth, the like.This middle Spit Section, can export pressure and the partial discharge of impeller before it with least disadvantage, remaining flow successfully can be input to again next stage impeller and continue pressurization.Like this, multistage pump can be arranged to 2,3,4 or multiple water outlet, makes the function that multistage pump has partial pressure, shunt volume supplies water.Height, middle pressure partial pressure, shunt volume water supply workplace can be applied to.
As preferably, described pumping chamber is loop configuration or spiral structure.Pumping chamber is set to output and the shunting that loop configuration or spiral structure are conducive to current.
As preferably, the described rotational flow guide vane that disappears is monoblock construction or bending plate, and the described rotational flow guide vane that disappears is provided with 3 ~ 7.The structure of the rotational flow guide vane that disappears can be set to straight-plate-type or bended plate type as required, and the effect of the rotational flow guide vane that disappears mainly is carried out elimination current circulation to the flow of the remaining part do not exported and be input to next stage impeller inlet continuing pressurization.The sheet number of the rotational flow guide vane that disappears can carry out being set to odd number or even numbers as required.
As preferably, the described rotational flow guide vane that disappears is set to bending plate, and the sense of rotation curving direction and centrifugal pump impeller of the rotational flow guide vane that disappears is arranged in the same way.In order to better eliminate current circulation, when the rotational flow guide vane that disappears is set to bending plate, its sense of rotation curving direction and centrifugal pump impeller is arranged in the same way.
As preferably, the cross section of described supporting plate is frustum structure, and the large end of described supporting plate is arranged on introducing port side, and small end is arranged on the rotational flow guide vane side that disappears, and large end and the curved structure in small end connecting plate face, on described supporting plate, large end side is provided with impeller and fixes snap ring.Supporting plate is provided with the derivation and elimination current eddy flow that said structure is conveniently current, reduces the loss.
As preferably, described support base plate is provided with flow-guiding mouth, the bore of described flow-guiding mouth by inside, setting-out chamber laterally curved structure reduce gradually to arrange.The said structure of the flow-guiding mouth on support base plate is in order to the flow of convenient remainder imports next stage impeller continuation pressurization smoothly.
As preferably, the profile of Spit Section is that hexahedron structure or cylindrical structure are arranged, and the two ends of Spit Section are respectively arranged with adpting flange, described adpting flange are provided with sealing configuration and linkage structure.The said structure of Spit Section is both convenient to be connected with multistage pump, also convenient fixing.
As preferably, this middle Spit Section is also provided with axle sleeve, and the outer wall of described axle sleeve matches with the leaf hub inwall of supporting plate and the rotational flow guide vane that disappears respectively, and described axle sleeve and centrifugal pump shaft are equipped with.Middle Spit Section, when being connected with multistage pump, realizing matching with centrifugal pump shaft, is also provided with axle sleeve.
The beneficial effects of the utility model are: the middle Spit Section of this multiple exit horizontal single suction sectional multi-stage centrifugal pump, can connect as required and install to any inter-stage in the middle of horizontal single suction sectional type multi-stage pump, pressure and the partial discharge of impeller before it can be exported with least disadvantage, remaining flow successfully can be input to again next stage impeller and continue pressurization.Multistage centrifugal pump can have multiple water outlet, has partial pressure, shunt volume water supply function.Solving an original high-pressure service pump provides different pressures for water problem by decompression power consumption, reaches effectively energy-conservation effect; The pump solving the different lift of original multiple stage provides different pressures water supply consumptive material respectively, and cost is high, and take up space many problems.This middle Spit Section has energy-conservation, and water-output flange bore is larger, and output flow is larger, and flow adjustment range is wider, and fluidised form is good, the more high feature of efficiency.Be mainly used in height, middle pressure partial pressure, shunt volume water supply workplace, as the workplace such as partial pressure/shunt volume feed water pump of oil field partial pressure/shunt volume water injection pump, industrial flow system.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the middle Spit Section of the utility model multiple exit horizontal single suction sectional multi-stage centrifugal pump;
Fig. 2 is the sectional view in Fig. 1;
Fig. 3 is a kind of application structure schematic diagram of Spit Section in the middle of the utility model;
In figure: 1, spue flange, 2, Spit Section, 3, support base plate, 4, seal ring, 5, disappear rotational flow guide vane, and 6, supporting plate, 7, Spit Section supporting leg, 8, pumping chamber, 9, introducing port, 10, discharge opening, 11, export mouth, 12, impeller fixes snap ring, and 13, flow-guiding mouth, 14, adpting flange, 15, sealing configuration, 16, linkage structure, 17, axle sleeve, 18, upper level impeller, 19, next stage impeller, 20, higher level's stator.
Embodiment
Also by reference to the accompanying drawings the technical solution of the utility model is described in further detail below by specific embodiment.
Embodiment 1:
At Fig. 1, in embodiment shown in Fig. 2, the middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump, this middle Spit Section to be arranged between multistage pump stage casing and to be connected with the upper level impeller of multistage pump and next stage impeller respectively, comprise the flange 1 that spues, Spit Section 2, support base plate 3, seal ring 4, disappear rotational flow guide vane 5, supporting plate 6 and Spit Section supporting leg 7, Spit Section 2 is fixed on Spit Section supporting leg 7, the profile of Spit Section 2 is hexahedron vibrational power flow, the two ends of Spit Section 2 are respectively arranged with adpting flange 14, adpting flange 14 is provided with sealing configuration 15 and linkage structure 16.Inside, Spit Section 2 is provided with the pumping chamber 8 of loop configuration, Spit Section 2 is provided with introducing port 9, discharge opening 10 and export mouth 11, introducing port 9 and export mouth 11 are corresponding with upper level impeller and next stage impeller respectively to be arranged, discharge opening 10 is arranged on the upper end of Spit Section 2 and is communicated with the flange 1 that spues, support base plate 3 is arranged on pumping chamber 8 inside and is connected with inside export mouth 11, it is inner near introducing port 9 side that supporting plate 6 is arranged on pumping chamber 8, the rotational flow guide vane that disappears 5 to be arranged on supporting plate 6 and to extend to support base plate 3 one end, seal ring 4 and export mouth 11 inwall are equipped with.
The rotational flow guide vane that disappears 5 is in bending plate, and the rotational flow guide vane that disappears 5 is provided with 4, and the sense of rotation curving direction and centrifugal pump impeller of the rotational flow guide vane that disappears 5 is arranged in the same way.
The cross section of supporting plate 6 is frustum structure, and the large end of supporting plate 6 is arranged on introducing port 9 side, and small end is arranged on rotational flow guide vane 5 side that disappears, and large end and the curved structure in small end connecting plate face, on supporting plate 6, large end side is provided with impeller and fixes snap ring 12.
Support base plate 3 is provided with flow-guiding mouth 13, the bore of flow-guiding mouth 13 by inside, setting-out chamber 8 laterally curved structure reduce gradually to arrange.
This middle Spit Section is also provided with axle sleeve 17, and the outer wall of axle sleeve 17 matches with the leaf hub inwall of supporting plate 6 and the rotational flow guide vane 5 that disappears respectively, and axle sleeve 17 and centrifugal pump shaft are equipped with.
Embodiment 2:
The middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump shown in embodiment 2, substantially identical with embodiment 1, difference is: the profile of Spit Section 2 is that cylindrical structure is arranged, inside, Spit Section 2 is provided with the pumping chamber 8 of helical structure, the rotational flow guide vane that disappears 5 is in straight plate structure, and the rotational flow guide vane that disappears 5 is provided with 7.
The middle Spit Section of the horizontal single suction of the multiple exit shown in above-described embodiment sectional multi-stage centrifugal pump, this middle water exit end can load any inter-stage in the middle of horizontal single suction sectional type multi-stage pump very easily, pressure and the partial discharge of impeller before it can be exported with least disadvantage, remaining flow successfully can be input to again next stage impeller and continue pressurization.Like this, multistage centrifugal pump can make 2,3,4 or multiple water outlet, makes multistage centrifugal pump have partial pressure, shunt volume water supply function.Be mainly used in height, middle pressure partial pressure, shunt volume water supply workplace, as the workplace such as partial pressure/shunt volume feed water pump of oil field partial pressure/shunt volume water injection pump, industrial flow system.
The middle Spit Section of this multiple exit horizontal single suction sectional multi-stage centrifugal pump, the middle Spit Section of several the technical program design conveniently can be increased in the stage casing of routine horizontal single suction sectional multi-stage centrifugal pump, can connect very easily and load any inter-stage in the middle of horizontal single suction sectional type multi-stage pump in this middle Spit Section, and export pressure and the partial discharge of corresponding progression impeller lift before it.The pumping chamber 8 of an annular or helical is designed with in Spit Section 2, pumping chamber inside is provided with the rotational flow guide vane 5 that disappears, the flow exported by upper level impeller 18 enters this annular or helical pumping chamber 8, part flow exports to user through the flange 1 that spues, and remaining part flow is eliminated current circulation through the rotational flow guide vane 5 that disappears and entered into next stage impeller 19 import continuation pressurization.Supporting plate 6 in Spit Section 2 is for supporting fixing higher level's stator 20.Export mouth 11 inside, Spit Section 2 is provided with seal ring 4 and coordinates with the seal ring on next stage impeller 19.Spit Section 2 is arranged on Spit Section supporting leg 7, and Spit Section supporting leg 7, as the supplemental support of multistage pump, can bear part multistage pump gravity and external connecting pipe road weight.
(see figure 3) during use, the middle Spit Section of horizontal for this multiple exit single suction sectional multi-stage centrifugal pump is connected between the intermediate section of multistage centrifugal pump, by the adpting flange 14 at two ends, Spit Section 2, sealing configuration 15 and linkage structure 16 realize and being tightly connected of multistage centrifugal pump case, higher level's stator 20 impeller be fixed on supporting plate 6 is fixed on snap ring 12, seal ring 4 is coordinated with the seal ring on next stage impeller 19, by axle sleeve, supporting plate 6 and the rotational flow guide vane 5 that disappears are linked together with pump shaft, the flange 1 that will spue is connected with user's pipeline, start multistage centrifugal pump, both pressure and the partial discharge of corresponding progression impeller lift before it can have been realized exporting, through spuing, flange 1 exports to user, remaining part flow is eliminated current circulation through the rotating guide vane 5 that disappears and is entered into next stage impeller inlet continuation pressurization, continue to flow to other users (in figure, the direction of arrow represents fluid flow direction).
As required, this middle Spit Section can load any inter-stage in the middle of multistage pump very easily and export pressure and the partial discharge of corresponding progression impeller lift before it, multistage pump can be made 2 water outlets, 3 water outlets and 4 water outlets etc. like this, make multistage pump have partial pressure, shunt volume water supply function, replace an original high-pressure service pump (providing middle pressure or low pressure to supply water by decompression power consumption way) to reach energy-conservation effect; Replace and originally need the pump of several different lifts (pressure) to provide low pressure, medium and high pressure to supply water to save occupation of land space and equipment manufacturing cost respectively; More traditional double-exit water pump being added an outlet structure by the perforate of multistage pump stage casing or the transformation of the way, in the middle of water pump, the flow of Spit Section outlet is larger, and flow adjustment range is wider, and fluidised form is good, and efficiency is higher, energy-conservation.
Claims (8)
1. the middle Spit Section of a multiple exit horizontal single suction sectional multi-stage centrifugal pump, this middle Spit Section to be arranged between multistage pump stage casing and to be connected with the upper level impeller of multistage pump and next stage impeller respectively, it is characterized in that: comprise the flange that spues (1), Spit Section (2), support base plate (3), seal ring (4), the rotational flow guide vane that disappears (5), supporting plate (6) and Spit Section supporting leg (7), described Spit Section (2) is fixed on Spit Section supporting leg (7), described Spit Section (2) inside is provided with pumping chamber (8), described Spit Section (2) is provided with introducing port (9), discharge opening (10) and export mouth (11), described introducing port (9) and export mouth (11) are corresponding with upper level impeller and next stage impeller respectively to be arranged, described discharge opening (10) is arranged on the upper end of Spit Section (2) and is communicated with the flange that spues (1), described support base plate (3) is arranged on pumping chamber (8) inside and is connected with export mouth (11) inner side, it is inner near introducing port (9) side that described supporting plate (6) is arranged on pumping chamber (8), the described rotational flow guide vane that disappears (5) is arranged on supporting plate (6) and goes up and extend to support base plate (3) side, described seal ring (4) and export mouth (11) inwall are equipped with.
2. the middle Spit Section of a kind of multiple exit according to claim 1 horizontal single suction sectional multi-stage centrifugal pump, is characterized in that: described pumping chamber (8) is loop configuration or spiral structure.
3. the middle Spit Section of a kind of multiple exit according to claim 1 horizontal single suction sectional multi-stage centrifugal pump, it is characterized in that: the described rotational flow guide vane that disappears (5) is in monoblock construction or bending plate, and the described rotational flow guide vane that disappears (5) is provided with 3 ~ 7.
4. the middle Spit Section of a kind of multiple exit according to claim 3 horizontal single suction sectional multi-stage centrifugal pump, it is characterized in that: the described rotational flow guide vane that disappears (5) is set to bending plate, and the sense of rotation curving direction and centrifugal pump impeller of the rotational flow guide vane that disappears (5) is arranged in the same way.
5. the middle Spit Section of a kind of multiple exit according to claim 1 horizontal single suction sectional multi-stage centrifugal pump, it is characterized in that: the cross section of described supporting plate (6) is frustum structure, the large end of described supporting plate (6) is arranged on introducing port (9) side, small end is arranged on the rotational flow guide vane that disappears (5) side, and large end and the curved structure in small end connecting plate face, the upper large end side of described supporting plate (6) is provided with impeller and fixes snap ring (12).
6. the middle Spit Section of a kind of multiple exit according to claim 1 horizontal single suction sectional multi-stage centrifugal pump, it is characterized in that: described support base plate (3) is provided with flow-guiding mouth (13), the bore of described flow-guiding mouth (13) by setting-out chamber (8) inside laterally curved structure reduce gradually to arrange.
7. the middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that: the profile of Spit Section (2) is that hexahedron structure or cylindrical structure are arranged, the two ends of Spit Section (2) are respectively arranged with adpting flange (14), described adpting flange (14) are provided with sealing configuration (15) and linkage structure (16).
8. the middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that: this middle Spit Section is also provided with axle sleeve (17), the outer wall of described axle sleeve (17) matches with the leaf hub inwall of supporting plate (6) and the rotational flow guide vane that disappears (5) respectively, and described axle sleeve (17) and centrifugal pump shaft are equipped with.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477895.3U CN204061198U (en) | 2014-08-25 | 2014-08-25 | The middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420477895.3U CN204061198U (en) | 2014-08-25 | 2014-08-25 | The middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump |
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| CN204061198U true CN204061198U (en) | 2014-12-31 |
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| CN201420477895.3U Active CN204061198U (en) | 2014-08-25 | 2014-08-25 | The middle Spit Section of a kind of multiple exit horizontal single suction sectional multi-stage centrifugal pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469904A (en) * | 2018-08-31 | 2021-03-09 | 翰昂汽车零部件德国有限公司 | Conveying device |
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2014
- 2014-08-25 CN CN201420477895.3U patent/CN204061198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112469904A (en) * | 2018-08-31 | 2021-03-09 | 翰昂汽车零部件德国有限公司 | Conveying device |
| US11525458B2 (en) | 2018-08-31 | 2022-12-13 | Hanon Systems Efp Deutschland Gmbh | Conveying device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: No. 46 Hangzhou City, Zhejiang province 311100 Yuhang District Renhe Street Renhe Road Patentee after: Southern Gold environment Limited by Share Ltd Address before: Renhe Town of Yuhang District of Hangzhou City, Zhejiang province 311107 Patentee before: Nanfang Pump Industry Co.,Ltd. |