CN113074136A - Double suction pump water inflow water conservancy diversion integrator - Google Patents
Double suction pump water inflow water conservancy diversion integrator Download PDFInfo
- Publication number
- CN113074136A CN113074136A CN202110523762.XA CN202110523762A CN113074136A CN 113074136 A CN113074136 A CN 113074136A CN 202110523762 A CN202110523762 A CN 202110523762A CN 113074136 A CN113074136 A CN 113074136A
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- China
- Prior art keywords
- double
- water
- guide shell
- water inlet
- flow guide
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Abstract
The invention discloses a double suction pump water inlet flow guide integrator which comprises a lower flow guide shell and an upper flow guide shell, wherein a double suction impeller installation cavity is arranged in the lower flow guide shell, a first water inlet positioned at the lower side of the double suction impeller installation cavity is arranged on the lower flow guide shell, and a second water inlet positioned at the upper side of the double suction impeller installation cavity is arranged on the lower flow guide shell; a water cavity is arranged on the upper guide shell, a plurality of guide pipelines are arranged between the lower guide shell and the upper guide shell, and the double-suction impeller mounting cavity is communicated with the water cavity through the guide pipelines; and a water outlet communicated with the water cavity is formed in the top of the upper diversion shell. The invention ensures that the water inflow of each water inlet is half of the rated flow of the water pump, can reduce the necessary cavitation allowance of the water pump during working, increases the design range of the water pump flow at the same rotating speed, reduces the volume of the water pump and reduces the requirement of the pump on the installation environment.
Description
Technical Field
The invention relates to a flow guide integrator, in particular to a double-suction pump water inlet flow guide integrator.
Background
The first-stage pump adopting the double-suction impeller is used in production and life, the guide integrator on the existing integrated double-suction pump adopts a single water inlet, when the rated flow of the water pump is larger, if enough submergence depth cannot be ensured, the water pump is likely to generate cavitation erosion, the cavitation erosion not only influences the flow, the lift and other working parameters of the water pump, but also damages the structure of the water pump, and the damage is serious. The problem can be effectively solved by reducing the rotating speed of the water pump, but the rotating speed of the water pump is reduced, the size is increased, the installation space is limited, and the manufacturing cost is increased. Therefore, the whole structure of the existing double-suction pump needs to be greatly changed to play the role of first-stage double suction. Therefore, the water inlet flow guide integrator of the double suction pump is provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a double suction pump water inlet flow guide integrator which comprises a lower flow guide shell and an upper flow guide shell, wherein a double suction impeller installation cavity is arranged in the lower flow guide shell, a first water inlet positioned at the lower side of the double suction impeller installation cavity is arranged on the lower flow guide shell, and a second water inlet positioned at the upper side of the double suction impeller installation cavity is arranged on the lower flow guide shell; a water cavity is arranged on the upper guide shell, a plurality of guide pipelines are arranged between the lower guide shell and the upper guide shell, and the double-suction impeller mounting cavity is communicated with the water cavity through the guide pipelines; and a water outlet communicated with the water cavity is formed in the top of the upper diversion shell.
As a preferred technical scheme of the invention, a fixed flange is arranged at the top of the upper diversion shell, a plurality of first positioning through holes are arranged on the fixed flange, and the fixed flange is connected with a diversion integrator in series and continues to pressurize by using an impeller or is connected with a conveying pipeline; the bottom of the lower guide shell is provided with a plurality of first positioning screw holes, and the bottom end of the lower guide shell is connected with a driving device.
As a preferable technical scheme of the invention, the bottom of the upper guide shell is provided with a bearing installation cavity which is on the same central line with the double-suction impeller installation cavity, and a shaft hole for the rotating shaft to pass through is arranged between the bearing installation cavity and the water cavity.
In a preferred embodiment of the present invention, a seal and a bearing are disposed in the bearing installation chamber, and the seal isolates fluid pressurized by the impeller from the outside of the component.
As a preferable technical solution of the present invention, the diameter of the first water inlet is larger than the diameter of the double suction impeller.
As a preferable technical scheme of the invention, the diversion pipeline is provided with a plurality of diversion pipelines.
As a preferable technical solution of the present invention, the first water inlet is located on a surface a of the double suction impeller, and the second water inlet is located on a surface B of the double suction impeller.
The invention has the beneficial effects that: 1. in the double-suction pump water inlet flow guide integrator, the lower flow guide shell is provided with a first water inlet positioned at the lower side of the double-suction impeller installation cavity, the lower flow guide shell is provided with a second water inlet positioned at the upper side of the double-suction impeller installation cavity, when the double-suction impeller is arranged in the double-suction impeller installation cavity, the first water inlet is positioned on the surface A of the double-suction impeller, the second water inlet is positioned on the surface B of the double-suction impeller, so that two water inlets are formed in the water inlet process of the water pump, compared with the traditional diversion integrator with one water inlet, the water flow speed of the water inlet is reduced while the water inlet has higher water inflow, so that the water inflow of each water inlet is half of the rated flow of the water pump, the method can reduce the necessary cavitation allowance of the water pump during operation, increase the design range of the water pump flow at the same rotating speed, reduce the volume of the water pump and reduce the requirement of the pump on the installation environment.
2. The top of the upper diversion shell in the double-suction pump water inlet diversion integrator is provided with a fixed flange, and the fixed flange is provided with a plurality of first positioning through holes, so that the fixed flange and the serial diversion integrator can be continuously pressurized by utilizing an impeller or can be connected with a conveying pipeline; the bottom of lower blower inlet casing is equipped with a plurality of first location screw, be convenient for with be connected with drive arrangement.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a double suction pump water inlet flow guide integrator of the present invention;
FIG. 2 is a cross-sectional view of a double suction pump intake flow guide integrator of the present invention;
FIG. 3 is a schematic view of the installation of the double suction impeller of the water inlet flow guiding integrator of the double suction pump according to the present invention;
FIG. 4 is a schematic diagram of a series structure of a double suction pump water inlet flow guiding integrator of the present invention; .
In the figure: 1. a lower guide shell; 2. an upper guide shell; 3. a first water inlet; 4. a second water inlet; 5. a double suction impeller mounting cavity; 6. a diversion pipeline; 7. a water outlet; 13. a fixed flange; 14. a first positioning through hole; 15. a first positioning screw hole; 23. a water chamber; 24. a bearing mounting cavity; 25. and the shaft hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-4, the water inlet flow guide integrator of the double suction pump of the present invention comprises a lower flow guide shell 1 and an upper flow guide shell 2, wherein a double suction impeller installation cavity 5 is arranged in the lower flow guide shell 1, a first water inlet 3 located at the lower side of the double suction impeller installation cavity 5 is arranged on the lower flow guide shell 1, and a second water inlet 4 located at the upper side of the double suction impeller installation cavity 5 is arranged on the lower flow guide shell 1; a water cavity 23 is arranged on the upper guide shell 2, a plurality of guide pipelines 6 are arranged between the lower guide shell 1 and the upper guide shell 2, and the double-suction impeller installation cavity 5 is communicated with the water cavity 23 through the guide pipelines 6; the top of the upper diversion shell 2 is provided with a water outlet 7 communicated with the water cavity 23; in the invention, the lower diversion shell 1 is provided with the first water inlet 3 positioned at the lower side of the double-suction impeller installation cavity 5, the lower guide shell 1 is provided with a second water inlet 4 positioned at the upper side of the double-suction impeller installation cavity 5, when the double-suction impeller is arranged in the double-suction impeller installation cavity 5, the first water inlet 3 is positioned on the surface A of the double-suction impeller, the second water inlet 4 is positioned on the surface B of the double-suction impeller, so that two water inlets are formed in the water inlet process of the water pump, compared with the traditional diversion integrator with one water inlet, the water flow speed of the water inlet is reduced while the water inlet has higher water inflow, so that the water inflow of each water inlet is half of the rated flow of the water pump, the method can reduce the necessary cavitation allowance of the water pump during operation, increase the design range of the water pump flow at the same rotating speed, reduce the volume of the water pump and reduce the requirement of the pump on the installation environment.
The top of the upper diversion shell 2 is provided with a fixed flange 13, the fixed flange 13 is provided with a plurality of first positioning through holes 14, and the fixed flange is connected with a diversion integrator in series and continuously pressurized by an impeller or connected with a conveying pipeline; the bottom of the lower guide shell 1 is provided with a plurality of first positioning screw holes 15, so that the lower guide shell is conveniently connected with a driving device.
Wherein, the bottom of going up kuppe 2 is equipped with and is in bearing installation cavity 24 on same central line with double-suction impeller installation cavity 5, be equipped with the shaft hole 25 that supplies the axis of rotation to pass between bearing installation cavity 24 and the water cavity 23, be convenient for install. The pump shaft passes through the shaft hole 2 through the upper guide shell 2, is connected with the driving device at the end of the first water inlet 3, is provided with a sealing element and a bearing in the bearing installation cavity 24, and is provided with the sealing element and the bearing to seal the joint of the shaft hole 2 of the pump shaft, and the sealing element isolates the fluid pressurized by the impeller from the outside of the component.
The diameter of the first water inlet 3 is larger than that of the double-suction impeller, so that the double-suction impeller is convenient to mount.
Wherein, the diversion pipeline 6 is provided with a plurality of, can set up the diversion pipeline 6 of different quantity according to the user demand.
The first water inlet is positioned on the surface A of the double-suction impeller, and the second water inlet is positioned on the surface B of the double-suction impeller.
The diversion pipeline 6 is spiral or linear.
When in work, the lower guide shell 1 is provided with the first water inlet 3 positioned at the lower side of the double-suction impeller installation cavity 5, the lower guide shell 1 is provided with the second water inlet positioned at the upper side of the double-suction impeller installation cavity 5, when the double-suction impeller is arranged in the double-suction impeller installation cavity 5, the first water inlet 3 is positioned on the surface A of the double-suction impeller, the second water inlet is positioned on the surface B of the double-suction impeller, so that two water inlets are formed in the water inlet process of the water pump, compared with the traditional diversion integrator with one water inlet, the water flow speed of the water inlet is reduced while the water inlet has higher water inflow, so that the water inflow of each water inlet is half of the rated flow of the water pump, the method can reduce the necessary cavitation allowance of the water pump during operation, increase the design range of the water pump flow at the same rotating speed, reduce the volume of the water pump and reduce the requirement of the pump on the installation environment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The double-suction pump water inlet flow guide integrator is characterized by comprising a lower flow guide shell (1) and an upper flow guide shell (2), wherein a double-suction impeller installation cavity (5) is arranged in the lower flow guide shell (1), a first water inlet (3) positioned on the lower side of the double-suction impeller installation cavity (5) is formed in the lower flow guide shell (1), and a second water inlet (4) positioned on the upper side of the double-suction impeller installation cavity (5) is formed in the lower flow guide shell (1); a water cavity (23) is formed in the upper guide shell (2), a plurality of guide pipelines (6) are arranged between the lower guide shell (1) and the upper guide shell (2), and the double-suction impeller mounting cavity (5) is communicated with the water cavity (23) through the guide pipelines (6); the top of the upper diversion shell (2) is provided with a water outlet (7) communicated with the water cavity (23).
2. The double suction pump water inlet flow guide integrator as claimed in claim 1, wherein a fixing flange (13) is arranged at the top of the upper flow guide shell (2), a plurality of first positioning through holes (14) are arranged on the fixing flange (13), and the fixing flange (13) is connected in series with the flow guide integrator to continuously pressurize by using an impeller or to be connected with a conveying pipeline; the bottom of the lower guide shell (1) is provided with a plurality of first positioning screw holes (15), and the bottom end of the lower guide shell (1) is connected with a driving device.
3. The double suction pump inflow water guide integrator according to claim 1, wherein a bearing installation cavity (24) which is on the same center line with the double suction impeller installation cavity (5) is arranged at the bottom of the upper guide shell (2), and a shaft hole (25) for a rotating shaft to pass through is arranged between the bearing installation cavity (24) and the water cavity (23).
4. The double suction pump inflow manifold as recited in claim 1, wherein a seal and a bearing are disposed in the bearing installation cavity (24), and the seal isolates the fluid pressurized by the impeller from the outside of the component.
5. The double suction pump inflow manifold as defined in claim 1, wherein the diameter of the first inlet (3) is larger than the diameter of the double suction impeller.
6. The double suction pump inflow diversion integrator of claim 1, wherein the diversion pipeline (6) is provided in plurality.
7. The double suction pump inflow diversion integrator of claim 1, wherein the first water inlet (3) is located on the side a of the double suction impeller, and the second water inlet (4) is located on the side B of the double suction impeller.
8. The double suction pump inflow guide integrator of claim 1, wherein the guide pipeline (6) is spiral or linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110523762.XA CN113074136A (en) | 2021-05-13 | 2021-05-13 | Double suction pump water inflow water conservancy diversion integrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110523762.XA CN113074136A (en) | 2021-05-13 | 2021-05-13 | Double suction pump water inflow water conservancy diversion integrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113074136A true CN113074136A (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110523762.XA Pending CN113074136A (en) | 2021-05-13 | 2021-05-13 | Double suction pump water inflow water conservancy diversion integrator |
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| Country | Link |
|---|---|
| CN (1) | CN113074136A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100135765A1 (en) * | 2007-05-21 | 2010-06-03 | Kevin Edward Burgess | Pumps |
| CN101936293A (en) * | 2010-09-13 | 2011-01-05 | 赵景权 | Double-inlet large-flow multistage centrifugal pump |
| CN102128181A (en) * | 2011-04-09 | 2011-07-20 | 无锡太博泵业有限公司 | Centrifugal pump flow guiding mechanism |
| CN108457908A (en) * | 2018-05-11 | 2018-08-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of sucking air deflector of centrifugal pump |
| CN210317799U (en) * | 2019-08-13 | 2020-04-14 | 东莞市浩程节能环保科技有限公司 | Energy-saving water pump |
| CN112443488A (en) * | 2019-08-30 | 2021-03-05 | 上海连成（集团）有限公司 | Double-volute rotating double-flow-passage vertical long-shaft pump |
-
2021
- 2021-05-13 CN CN202110523762.XA patent/CN113074136A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100135765A1 (en) * | 2007-05-21 | 2010-06-03 | Kevin Edward Burgess | Pumps |
| CN101936293A (en) * | 2010-09-13 | 2011-01-05 | 赵景权 | Double-inlet large-flow multistage centrifugal pump |
| CN102128181A (en) * | 2011-04-09 | 2011-07-20 | 无锡太博泵业有限公司 | Centrifugal pump flow guiding mechanism |
| CN108457908A (en) * | 2018-05-11 | 2018-08-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of sucking air deflector of centrifugal pump |
| CN210317799U (en) * | 2019-08-13 | 2020-04-14 | 东莞市浩程节能环保科技有限公司 | Energy-saving water pump |
| CN112443488A (en) * | 2019-08-30 | 2021-03-05 | 上海连成（集团）有限公司 | Double-volute rotating double-flow-passage vertical long-shaft pump |
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Application publication date: 20210706 |
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| RJ01 | Rejection of invention patent application after publication |