CN104074804A - Flow guide disk of multistage impeller centrifugal pump - Google Patents
Flow guide disk of multistage impeller centrifugal pump Download PDFInfo
- Publication number
- CN104074804A CN104074804A CN201410329624.8A CN201410329624A CN104074804A CN 104074804 A CN104074804 A CN 104074804A CN 201410329624 A CN201410329624 A CN 201410329624A CN 104074804 A CN104074804 A CN 104074804A
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- China
- Prior art keywords
- flow
- centrifugal pump
- disk
- water
- impeller
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- 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.)
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Classifications
-
- 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
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a flow guide disk of a multistage impeller centrifugal pump. A disk base of the flow guide disk is divided into an upper cavity and a lower cavity through a middle partition plate. Water-passing through holes communicated with the upper cavity and the lower cavity are evenly and annularly distributed in the periphery of the middle partition plate. Each water-passing through hole corresponds to a flow baffle. The flow baffles are located on the bottom face of the lower cavity. One end of each flow baffle extends to the inner side wall of the lower cavity, and a water inlet opening is formed between the other end of each flow baffle and the adjacent flow baffle. The flow baffles jointly define an impeller containing cavity. Flow guide ribs are evenly and annularly distributed on the bottom face of the upper cavity, and the space between every two adjacent flow guide ribs corresponds to one water-passing through hole. A disk-covering sealing cover is connected to the edge of the opening of the upper cavity. The flow guide disk solves the technical problem that an existing flow guide disk influences the working efficiency of the multistage impeller centrifugal pump; the working efficiency of the multistage impeller centrifugal pump is guaranteed on the premise of achieving normal operation of the multistage impeller centrifugal pump.
Description
Technical field
The present invention relates to a kind of diversion disk of impeller centrifugal pump, particularly a kind of diversion disk of multi-stage impeller centrifugal pump.
Background technique
Deflector in multi-stage impeller centrifugal pump structure is mainly made up of impeller and diversion disk.Impeller centrifugal pump at work pump shaft impeller does high speed rotary motion, flowing medium (gas and liquid, also can be the mixture of suspended particulate and gas or liquid) enter from impeller root (import), and rely on high speed rotating impeller acquisition centrifugal force to be thrown toward impeller outer edge, then discharge and enter into diversion disk from pressure relief opening (outlet); The flowing medium that above-mentioned middle impeller pressure relief opening is flowed out in the effect of diversion disk collects, and is sent to next stage impeller root (import) in pump case.
Existing guide plate is because of structural design defect, it collects at the flowing medium that above-mentioned middle impeller pressure relief opening is flowed out, and is sent in this whole process of next stage impeller root (import) in pump case, and circulation easily appears in current in diversion disk, the phenomenons such as mixed flow, easily cause hydraulic loss; Simultaneously occurring that after above-mentioned situation, the holdup time of current in diversion disk will certainly increase, leaking the volumetric loss causing thereby further increase because of flow.Finally, have influence on the working efficiency of multi-stage impeller centrifugal pump.Therefore, be necessary the diversion disk of above-mentioned existing multi-stage impeller centrifugal pump to do further technological improvement.
Summary of the invention
The object of the invention is to provide in order to solve above-mentioned the deficiencies in the prior art a kind of diversion disk of the multi-stage impeller centrifugal pump that can reduce hydraulic loss and volumetric loss.
To achieve these goals, the diversion disk of the designed a kind of multi-stage impeller centrifugal pump of the present invention, comprise disk body, disk body in above-mentioned is mainly made up of dish seat and disk cover two-part, wherein said dish seat is separated into upper chamber by a central diaphragm, lower chambers, be furnished with the water through hole excessively that connects upper chamber and lower chambers in the periphery uniform ring of this central diaphragm, each water through hole of crossing is all to there being a flow-stopping plate, above-mentioned flow-stopping plate is positioned on the bottom surface of lower chambers, one end extends on the madial wall of above-mentioned lower chambers, and be the angle of 15 ° ~ 25 ° with the tangent line of both intersections, between the other end and adjacent flow-stopping plate, form a water inlet openings, flow-stopping plate in above-mentioned has surrounded impeller accommodating chamber jointly, on the bottom surface of above-mentioned upper chamber, uniform ring is furnished with water conservancy diversion rib, one end of every water conservancy diversion rib all extends on the madial wall of upper chamber, the center of central diaphragm is all closed in its other end, and cross water through hole for corresponding one between every adjacent two water conservancy diversion ribs, above-mentioned shrouding disc sealing cover is connected in the opening opening's edge of upper chamber.
When diversion disk in above-mentioned coordinates impeller specifically to use in multi-stage impeller centrifugal pump, impeller has been arranged in the impeller accommodating chamber jointly being surrounded by polylith flow-stopping plate in the lower chambers of diversion disk, and the pressure relief opening of impeller faces the outer side wall of flow-stopping plate, pump shaft impeller is done high speed rotary motion, flowing medium enters from impeller root (import), thereby and rely on high speed rotating impeller to obtain centrifugal force to be divided into multiply and to get rid of to impeller outer edge, discharge from pressure relief opening again, the per share flowing medium of discharging from pressure relief opening is owing to being subject to the barrier effect of flow-stopping plate, can only be from the water inlet openings between every adjacent two flow-stopping plates fast by flowing to again corresponding water through hole excessively, next stage impeller root (import) in being finally sent directly to pump case under the guide functions of corresponding two adjacent water conservancy diversion ribs.Therefore, the flowing medium entering from impeller root (import) in above-mentioned this whole process all can effectively be shunted guiding in impeller and diversion disk, avoid to the full extent flowing medium in diversion disk, to occur the situation such as circulation, mixed flow, hydraulic loss while reducing impeller centrifugal pump work, simultaneously again due to the minimizing of the phenomenon such as circulation, mixed flow in diversion disk, shorten the holdup time of flowing medium in diversion disk, leaked the volumetric loss causing thereby effectively reduce because of flow.
As further technological selection, the water conservancy diversion rib in above-mentioned is arcuate segment, and its arc is consistent with the radian of the impeller upper blade that matches.The water conservancy diversion rib providing in this further technological selection scheme can at utmost reduce the mechanical loss that its flow medium causes, and ensures the working efficiency of impeller centrifugal pump.
The diversion disk of a kind of multi-stage impeller centrifugal pump provided by the present invention, it is collecting the flowing medium flowing out from impeller pressure relief opening, and be sent in this whole process of next stage impeller root (import) in pump case, current there will not be circulation in diversion disk, the phenomenons such as mixed flow, thereby shorten the holdup time of flowing medium in diversion disk, finally promoted the working efficiency of multi-stage impeller centrifugal pump.
Brief description of the drawings
Fig. 1 is a kind of schematic perspective view that the diversion disk of a kind of multi-stage impeller centrifugal pump providing is provided;
Fig. 2 is the another kind of schematic perspective view that the diversion disk of a kind of multi-stage impeller centrifugal pump providing is provided;
Fig. 3 is the end view of A direction in Fig. 1;
Fig. 4 is the end view (removing shrouding disc) of B direction in Fig. 1;
Fig. 5 is the structural representation after the diversion disk of a kind of multi-stage impeller centrifugal pump of providing of invention coordinates with impeller;
Fig. 6 is the sectional schematic diagram at a-a place in Fig. 5.
In figure: disk body 1, dish seat 2, disk cover 3, central diaphragm 4, lower chambers 5, upper chamber 6, opening opening's edge 6-1, mistake water through hole 7, flow-stopping plate 8, water inlet openings 9, water conservancy diversion rib 10, impeller 11, root 11-1, pressure relief opening 11-2.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1:
As Figure 1-4, the diversion disk of a kind of multi-stage impeller centrifugal pump that the present embodiment provides, comprise disk body 1, disk body 1 in above-mentioned is mainly made up of dish seat 2 and disk cover 3 two-part, wherein said dish seat 2 is separated into upper chamber 6 and lower chambers 5 by a central diaphragm 4, be furnished with the water through hole 7 excessively that connects upper chamber 6 and lower chambers 5 in the periphery uniform ring of this central diaphragm 4, each water through hole 7 of crossing is all to there being a flow-stopping plate 8, the underrun ultrasonic welding connection technology of above-mentioned flow-stopping plate 8 and the bottom surface of lower chambers 5 fix, the ultrasonic welding of one end is connected on the madial wall of above-mentioned lower chambers 5, and be the angle of 20 ° with the tangent line of both intersections, between the other end and adjacent flow-stopping plate 8, form a water inlet openings 9, flow-stopping plate 8 in above-mentioned has surrounded impeller 11 accommodating chamber jointly, on the bottom surface of above-mentioned upper chamber 6, uniform ring is furnished with water conservancy diversion rib 10, the bottom surface of every water conservancy diversion rib 10 is all fixed with the bottom surface ultrasonic welding of upper chamber 6, and an equal ultrasonic welding in end is connected on the madial wall of upper chamber 6, the other end all extends to the axle central position of closing on central diaphragm 4, and between every adjacent two water conservancy diversion ribs 10, all one of correspondence is crossed water through hole 7, above-mentioned middle water conservancy diversion rib 10 is arcuate segment simultaneously, and its arc is consistent with the radian of impeller 11 upper blades that match, so that can at utmost reduce the mechanical loss that its flow medium causes, ensure the working efficiency of impeller 11 centrifugal pumps, above-mentioned shrouding disc ultrasonic welding is connected on the opening opening's edge 6-1 of upper chamber 6.
As shown in Figure 5 and Figure 6, diversion disk in above-mentioned coordinates when impeller 11 is concrete to be used in multi-stage impeller centrifugal pump, impeller 11 has been arranged in impeller 11 accommodating chamber that jointly surrounded by polylith flow-stopping plate 8 in the lower chambers 5 of diversion disk, and the pressure relief opening 11-2 of impeller 11 faces the outer side wall of flow-stopping plate 8, pump shaft impeller 11 is done high speed rotary motion, flowing medium is from impeller 11 root 11-1(imports) enter, thereby and rely on high speed rotating impeller 11 to obtain centrifugal force to be divided into multiply and to get rid of to impeller 11 outer rims, discharge from pressure relief opening 11-2 again, the per share flowing medium of discharging from pressure relief opening 11-2 is owing to being subject to the barrier effect of flow-stopping plate 8, can only be from the water inlet openings 9 between every adjacent two flow-stopping plates 8 fast by flowing to again corresponding water through hole 7 excessively, next stage impeller 11 root 11-1(imports in being finally sent directly to pump case under the guide functions of corresponding two adjacent water conservancy diversion ribs 10).
Claims (2)
1. the diversion disk of a multi-stage impeller centrifugal pump, comprise disk body (1), it is characterized in that described disk body (1) is mainly made up of dish seat (2) and disk cover (3) two-part, wherein said dish seat (2) is separated into upper chamber (6) and lower chambers (5) by a central diaphragm (4), be furnished with the water through hole (7) excessively that connects upper chamber (6) and lower chambers (5) in the periphery uniform ring of this central diaphragm (4), each water through hole (7) of crossing is all to there being a flow-stopping plate (8), above-mentioned flow-stopping plate (8) is positioned on the bottom surface of lower chambers (5), one end extends on the madial wall of above-mentioned lower chambers (5), and be the angle of 15 ° ~ 25 ° with the tangent line of both intersections, between the other end and adjacent flow-stopping plate (8), form a water inlet openings (9), flow-stopping plate (8) in above-mentioned has surrounded impeller (11) accommodating chamber jointly, on the bottom surface of above-mentioned upper chamber (6), uniform ring is furnished with water conservancy diversion rib (10), one end of every water conservancy diversion rib (10) all extends on the madial wall of upper chamber (6), central diaphragm (4) Zhou center is all closed in its other end, and cross water through hole (7) for corresponding one between every adjacent two water conservancy diversion ribs (10), above-mentioned shrouding disc sealing cover is connected in the opening opening's edge (6-1) of upper chamber (6).
2. the diversion disk of a kind of multi-stage impeller centrifugal pump according to claim 1, it is characterized in that the water conservancy diversion rib (10) in above-mentioned is arcuate segment, and its arc is consistent with the radian of the impeller that matches (11) upper blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329624.8A CN104074804A (en) | 2014-07-11 | 2014-07-11 | Flow guide disk of multistage impeller centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329624.8A CN104074804A (en) | 2014-07-11 | 2014-07-11 | Flow guide disk of multistage impeller centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104074804A true CN104074804A (en) | 2014-10-01 |
Family
ID=51596322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410329624.8A Pending CN104074804A (en) | 2014-07-11 | 2014-07-11 | Flow guide disk of multistage impeller centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074804A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105501938A (en) * | 2014-10-15 | 2016-04-20 | 中联重科股份有限公司 | Material dispersing device, engineering machinery and material dispersing method |
| CN105909526A (en) * | 2016-04-19 | 2016-08-31 | 湖南天奥星泵业有限公司 | Radial dissection two-end support type four-stage centrifugal pump |
| WO2017054310A1 (en) * | 2015-09-29 | 2017-04-06 | 佛山市威灵洗涤电机制造有限公司 | Centrifugal pump |
| CN110307635A (en) * | 2019-07-05 | 2019-10-08 | 华帝股份有限公司 | Gas water heater capable of improving supercharging effect |
| CN110454434A (en) * | 2019-09-17 | 2019-11-15 | 苏州美达斯机电有限公司 | A kind of centrifugal pump multi-stage impeller structure |
| CN110470057A (en) * | 2019-07-19 | 2019-11-19 | 华帝股份有限公司 | Gas heater |
| CN111958490A (en) * | 2020-08-06 | 2020-11-20 | 泉州市海恩德机电科技发展有限公司 | Circumferential water supply mechanism capable of high-speed operation |
| CN113153766A (en) * | 2021-05-26 | 2021-07-23 | 苏州沃达园林机械有限公司 | High-working-performance submersible pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3730641A (en) * | 1972-03-10 | 1973-05-01 | Flint & Walling Inc | Centrifugal pumps |
| CN2118852U (en) * | 1992-01-24 | 1992-10-14 | 刘建海 | High efficient multi-stage centrifugal water pump guide wheel |
| US5344285A (en) * | 1993-10-04 | 1994-09-06 | Ingersoll-Dresser Pump Company | Centrifugal pump with monolithic diffuser and return vane channel ring member |
| WO2007140549A1 (en) * | 2006-06-06 | 2007-12-13 | Akif Namazali Oglu Mirzaliyev | The well rotary electric pump |
| CN201090529Y (en) * | 2007-08-14 | 2008-07-23 | 上海连成（集团）有限公司 | Novel multi-stage pump guide blade |
| CN203175992U (en) * | 2013-04-11 | 2013-09-04 | 福建银嘉机电有限公司 | Guide vane for water pump |
| CN103775389A (en) * | 2014-01-09 | 2014-05-07 | 浙江工业大学 | Radial guide blade for sectional multistage pump |
| CN203962490U (en) * | 2014-07-11 | 2014-11-26 | 君禾泵业股份有限公司 | A kind of diversion disk of multi-stage impeller centrifugal pump |
-
2014
- 2014-07-11 CN CN201410329624.8A patent/CN104074804A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3730641A (en) * | 1972-03-10 | 1973-05-01 | Flint & Walling Inc | Centrifugal pumps |
| CN2118852U (en) * | 1992-01-24 | 1992-10-14 | 刘建海 | High efficient multi-stage centrifugal water pump guide wheel |
| US5344285A (en) * | 1993-10-04 | 1994-09-06 | Ingersoll-Dresser Pump Company | Centrifugal pump with monolithic diffuser and return vane channel ring member |
| WO2007140549A1 (en) * | 2006-06-06 | 2007-12-13 | Akif Namazali Oglu Mirzaliyev | The well rotary electric pump |
| CN201090529Y (en) * | 2007-08-14 | 2008-07-23 | 上海连成（集团）有限公司 | Novel multi-stage pump guide blade |
| CN203175992U (en) * | 2013-04-11 | 2013-09-04 | 福建银嘉机电有限公司 | Guide vane for water pump |
| CN103775389A (en) * | 2014-01-09 | 2014-05-07 | 浙江工业大学 | Radial guide blade for sectional multistage pump |
| CN203962490U (en) * | 2014-07-11 | 2014-11-26 | 君禾泵业股份有限公司 | A kind of diversion disk of multi-stage impeller centrifugal pump |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105501938A (en) * | 2014-10-15 | 2016-04-20 | 中联重科股份有限公司 | Material dispersing device, engineering machinery and material dispersing method |
| CN105501938B (en) * | 2014-10-15 | 2018-02-06 | 中联重科股份有限公司 | Material dispersing device, engineering machinery and material dispersing method |
| WO2017054310A1 (en) * | 2015-09-29 | 2017-04-06 | 佛山市威灵洗涤电机制造有限公司 | Centrifugal pump |
| CN105909526A (en) * | 2016-04-19 | 2016-08-31 | 湖南天奥星泵业有限公司 | Radial dissection two-end support type four-stage centrifugal pump |
| CN110307635A (en) * | 2019-07-05 | 2019-10-08 | 华帝股份有限公司 | Gas water heater capable of improving supercharging effect |
| CN110470057A (en) * | 2019-07-19 | 2019-11-19 | 华帝股份有限公司 | Gas heater |
| CN110454434A (en) * | 2019-09-17 | 2019-11-15 | 苏州美达斯机电有限公司 | A kind of centrifugal pump multi-stage impeller structure |
| CN110454434B (en) * | 2019-09-17 | 2024-06-11 | 苏州美达斯机电有限公司 | Multistage impeller structure of centrifugal pump |
| CN111958490A (en) * | 2020-08-06 | 2020-11-20 | 泉州市海恩德机电科技发展有限公司 | Circumferential water supply mechanism capable of high-speed operation |
| CN113153766A (en) * | 2021-05-26 | 2021-07-23 | 苏州沃达园林机械有限公司 | High-working-performance submersible pump |
| CN113153766B (en) * | 2021-05-26 | 2024-01-23 | 苏州沃达园林机械有限公司 | High-working-performance submersible pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141001 |