CN111648967A - Self-balancing multistage pump four-volute chamber water outlet section - Google Patents
Self-balancing multistage pump four-volute chamber water outlet section Download PDFInfo
- Publication number
- CN111648967A CN111648967A CN202010541858.4A CN202010541858A CN111648967A CN 111648967 A CN111648967 A CN 111648967A CN 202010541858 A CN202010541858 A CN 202010541858A CN 111648967 A CN111648967 A CN 111648967A
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- CN
- China
- Prior art keywords
- impeller
- water outlet
- outlet section
- positive
- reverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D29/18—Rotors
- F04D29/185—Rotors consisting of a plurality of wheels
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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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
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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
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
- F04D29/40—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
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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 is suitable for the technical field of multistage pumps, and provides a four-volute chamber water outlet section of a self-balancing multistage pump, which comprises a main shaft, a positive impeller, a positive guide vane, a final-stage positive impeller, a water outlet section, a middle throttle shaft sleeve, a final-stage reverse impeller, a reverse guide vane and a reverse impeller, wherein the efficiency is improved through the matching of the components, and the length of the water outlet section is greatly shortened. The length of the main shaft is shortened, the rigidity of the rotor is improved, and the reliability of the pump is improved.
Description
Technical Field
The invention belongs to the technical field of multi-stage pumps, and particularly relates to a water outlet section of a four-volute chamber of a self-balancing multi-stage pump.
Background
The self-balancing multistage centrifugal pump is composed of a stator component (the stator component is composed of parts such as a water inlet section, a middle section, a positive guide vane, a reverse guide vane, a water outlet section, a secondary water inlet section, a front bearing body, a rear bearing body, a transition pipe and the like) and a rotor component (the rotor component is composed of a main shaft, a positive impeller, a reverse impeller, a shaft sleeve, a bearing retaining sleeve, a middle throttling shaft sleeve, a rear throttling shaft sleeve, a coupling and the like)
The prime motor drives the water pump to rotate, medium is sucked from the water inlet section, flows into the secondary water inlet section through the pressurizing of the positive impeller group, flows into the secondary water inlet section through the transition pipe, is pressurized again through the reverse impeller group, and flows out of the water outlet section, so that the medium is continuously conveyed.
The self-balancing multi-stage pump water outlet section (figure 1) is provided with a final stage positive guide vane, a final stage positive impeller, a final stage reverse guide vane, a final stage reverse impeller and an intermediate throttling device, the water outlet section is only provided with two stages of impellers, compared with a balancing disk type multi-stage pump with the same stage, the length of a main shaft is increased by about 1.5 stages, the multi-stage pump is a slender shaft and a flexible shaft, the diameter is unchanged, the longer the length of the main shaft is, the poorer the rigidity of the main shaft is, and the poorer. But the operation efficiency of the self-balancing multistage pump is far higher than that of the balance disc-type multistage pump.
Disclosure of Invention
The invention aims to provide a water outlet section of a four-volute chamber of a self-balancing multistage pump, aiming at the defect and defect of longer length of a water outlet section of the existing self-balancing multistage pump.
The invention is realized in this way, a self-balancing multi-stage pump four-volute chamber water outlet section, which is characterized in that the self-balancing multi-stage pump four-volute chamber water outlet section comprises a main shaft, a positive impeller, a positive guide vane, a final stage positive impeller, a water outlet section, a middle throttle shaft sleeve, a final stage reverse impeller, a reverse guide vane and a reverse impeller, the main shaft is arranged in the middle throttle shaft sleeve, the positive impeller and the final-stage positive impeller are arranged on the left side of the main shaft, the reverse impeller and the final-stage reverse impeller are arranged on the right side of the main shaft, the water outlet section is arranged outside the main shaft, the water outlet section is provided with 4 vortex chambers, the positive impeller and the final-stage positive impeller are symmetrically arranged in two vortex chambers on the left side of the water outlet section, the final-stage counter impeller and the counter impeller are symmetrically arranged in two vortex chambers on the right side of the water outlet section, install in the play water section left side positive stator, it installs to go out water section right side the back guide vane.
The beneficial technical effects related to the implementation of the invention are as follows: the invention improves the efficiency through the matching among all components in the technical scheme, greatly shortens the length of the water outlet section, is provided with the positive impeller, the positive guide vane, the final stage positive impeller, the reverse guide vane and the final stage reverse impeller, is provided with the four-stage impeller together, shortens 2 stages compared with the self-balancing multi-stage water outlet section, and is 0.5 stage shorter than the balancing disc type multi-stage pump. The length of the main shaft is shortened, the rigidity of the rotor is improved, and the reliability of the pump is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the invention relates to a four-volute water outlet section of a self-balancing multistage pump, which comprises a main shaft 1, a positive impeller 2, a positive guide vane 3, a final-stage positive impeller 4, a water outlet section 5, a middle throttling shaft sleeve 6, a final-stage reverse impeller 7, a reverse guide vane 8 and a reverse impeller 9, wherein the main shaft 1 is installed in the middle throttling shaft sleeve 6, the positive impeller 2 and the final-stage positive impeller 4 are installed on the left side of the main shaft 1, the reverse impeller 9 and the final-stage reverse impeller 7 are installed on the right side of the main shaft 1, the water outlet section 5 is arranged outside the main shaft 1, the water outlet section 5 is provided with 4 volute chambers, the positive impeller 2 and the final-stage positive impeller 4 are symmetrically arranged in two volute chambers on the left side of the water outlet section 5, the final-stage reverse impeller 7 and the reverse impeller 9 are symmetrically arranged in two volute chambers on the.
The beneficial technical effects related to the implementation of the invention are as follows: the invention improves the efficiency through the matching among the components in the above embodiment, the length of the water outlet section is greatly shortened, the invention is provided with the positive impeller, the positive guide vane, the final stage positive impeller, the reverse guide vane and the final stage reverse impeller, and the invention is provided with the four-stage impeller together, thereby shortening the water outlet section by 2 stages compared with the self-balancing multi-stage pump and being 0.5 stage shorter than the balancing disc type multi-stage pump. The length of the main shaft is shortened, the rigidity of the rotor is improved, and the reliability of the pump is improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The water outlet section of the four volute chambers of the self-balancing multistage pump is characterized by comprising a main shaft (1), a positive impeller (2), a positive guide vane (3), a final positive impeller (4), a water outlet section (5), a middle throttling shaft sleeve (6), a final reverse impeller (7), a reverse guide vane (8) and a reverse impeller (9), wherein the main shaft (1) is installed in the middle throttling shaft sleeve (6), the positive impeller (2) and the final positive impeller (4) are installed on the left side of the main shaft (1), the reverse impeller (9) and the final reverse impeller (7) are installed on the right side of the main shaft (1), the water outlet section (5) is arranged outside the main shaft (1), the water outlet section (5) is provided with 4 volute chambers, the positive impeller (2) and the final positive impeller (4) are symmetrically arranged in the two volute chambers on the left side of the water outlet section (5), last stage anti-impeller (7) with anti-impeller (9) symmetrical arrangement is in go out in two vortexes on water section (5) right side, it installs to go out water section (5) left side positive stator (3), it installs to go out water section (5) right side anti-stator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541858.4A CN111648967A (en) | 2020-06-15 | 2020-06-15 | Self-balancing multistage pump four-volute chamber water outlet section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010541858.4A CN111648967A (en) | 2020-06-15 | 2020-06-15 | Self-balancing multistage pump four-volute chamber water outlet section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111648967A true CN111648967A (en) | 2020-09-11 |
Family
ID=72352898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010541858.4A Pending CN111648967A (en) | 2020-06-15 | 2020-06-15 | Self-balancing multistage pump four-volute chamber water outlet section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111648967A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513502A (en) * | 2021-08-19 | 2021-10-19 | 长沙佳能通用泵业有限公司 | Four volute chamber of self-balancing multistage pump go out water structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276572Y (en) * | 1996-07-06 | 1998-03-18 | 阳泉市水泵厂 | Segmental opposed voluted type multistage slag thick liquid pump |
| CN2859040Y (en) * | 2005-05-30 | 2007-01-17 | 重庆水泵厂有限责任公司 | High-pressure self-balancing two-housing segment centrifugal pump |
| CN201265547Y (en) * | 2008-09-23 | 2009-07-01 | 长沙佳能通用泵业有限公司 | Balancing type single-suction horizontal multiple-stage centrifugal pump |
| CN201321988Y (en) * | 2008-12-02 | 2009-10-07 | 上海凯泉泵业（集团）有限公司 | Self-balance multistage centrifugal pump |
| CN203348177U (en) * | 2013-06-27 | 2013-12-18 | 上海第一水泵厂有限公司 | Horizontal type self-balancing multiple-stage centrifugal pump with high-cavitation-resistant performance |
| CN103498797A (en) * | 2013-09-23 | 2014-01-08 | 长沙佳能通用泵业有限公司 | Parallel type self-balancing multi-stage centrifugal pump |
| CN105697382A (en) * | 2014-11-28 | 2016-06-22 | 上海凯泉泵业（集团）有限公司 | Radially split double-shell multiple-stage centrifugal pump |
-
2020
- 2020-06-15 CN CN202010541858.4A patent/CN111648967A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276572Y (en) * | 1996-07-06 | 1998-03-18 | 阳泉市水泵厂 | Segmental opposed voluted type multistage slag thick liquid pump |
| CN2859040Y (en) * | 2005-05-30 | 2007-01-17 | 重庆水泵厂有限责任公司 | High-pressure self-balancing two-housing segment centrifugal pump |
| CN201265547Y (en) * | 2008-09-23 | 2009-07-01 | 长沙佳能通用泵业有限公司 | Balancing type single-suction horizontal multiple-stage centrifugal pump |
| CN201321988Y (en) * | 2008-12-02 | 2009-10-07 | 上海凯泉泵业（集团）有限公司 | Self-balance multistage centrifugal pump |
| CN203348177U (en) * | 2013-06-27 | 2013-12-18 | 上海第一水泵厂有限公司 | Horizontal type self-balancing multiple-stage centrifugal pump with high-cavitation-resistant performance |
| CN103498797A (en) * | 2013-09-23 | 2014-01-08 | 长沙佳能通用泵业有限公司 | Parallel type self-balancing multi-stage centrifugal pump |
| CN105697382A (en) * | 2014-11-28 | 2016-06-22 | 上海凯泉泵业（集团）有限公司 | Radially split double-shell multiple-stage centrifugal pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513502A (en) * | 2021-08-19 | 2021-10-19 | 长沙佳能通用泵业有限公司 | Four volute chamber of self-balancing multistage pump go out water structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200911 |
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| RJ01 | Rejection of invention patent application after publication |