CN111536046A - Multi-stage delivery pump - Google Patents
Multi-stage delivery pump Download PDFInfo
- Publication number
- CN111536046A CN111536046A CN201911315709.XA CN201911315709A CN111536046A CN 111536046 A CN111536046 A CN 111536046A CN 201911315709 A CN201911315709 A CN 201911315709A CN 111536046 A CN111536046 A CN 111536046A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- shell
- delivery pump
- bodies
- ear
- 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.)
- Withdrawn
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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
- F04D1/06—Multi-stage pumps
- F04D1/08—Multi-stage pumps the stages being situated concentrically
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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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
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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
-
- 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
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Abstract
A multi-stage delivery pump. It includes a plurality of centrifugal pump bodies, and the shell bilateral symmetry position of every centrifugal pump body is provided with the ear, the lug same position all opens threaded hole, and each screw hole is connected through a screw rod that sets up the external screw thread. All centrifugal pump bodies are aligned and fixed through the screw rods and the threads of the threaded holes, so that the concentricity is very high, the pressure resistance of the shell can reach 20MPa, the lift is improved by 3MPa, and too many materials and the weight of the pump bodies cannot be increased.
Description
Technical Field
The invention relates to the technical field of submersible electric pumps, in particular to a multistage delivery pump.
Background
The multistage delivery pump is characterized in that more than two centrifugal pumps with the same function are integrated together, and the fluid channel structure is represented in that a medium pressure relief opening of a first stage is communicated with an inlet of a second stage, and a medium pressure relief opening of the second stage is communicated with an inlet of a third stage, so that a mechanism connected in series forms the multistage delivery pump.
The multistage delivery pump adopts a high-efficiency energy-saving hydraulic model recommended by China, and has the advantages of high efficiency, energy conservation, wide performance range, safe and stable operation, low noise, long service life, convenience in installation and maintenance and the like; through changing the material of pump, sealed form and increasing cooling system, can carry hot water, oils, corrosivity and contain the medium of abrasive etc. but current multistage delivery pump uses screw rod and shaft coupling to carry out fixed connection, see figure 1, but the screw rod size is inaccurate, inconsistent, and the shaft coupling concentricity is poor, leads to the connection insecure between the centrifugal pump, unstable to and use the bolt to fasten on the shell, lead to the withstand voltage performance of shell to descend, thereby influenced multistage delivery pump's application greatly.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a multistage delivery pump, all centrifugal pump bodies are aligned and fixed through screw rods and threads of threaded holes, so that the concentricity is very high, the pressure resistance of a shell can reach 20MPa, the lift is improved by 3MPa, and too many materials and the weight of the pump bodies cannot be increased.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a multistage delivery pump, which adopts the following scheme:
it includes a plurality of centrifugal pump bodies, and the shell bilateral symmetry position of every centrifugal pump body is provided with the ear, the lug same position all opens threaded hole, and each screw hole is connected through a screw rod that sets up the external screw thread.
Furthermore, the ear part thickness of the shell of the centrifugal pump body is 10cm, and the non-ear part thickness is 5 cm.
The invention has the beneficial effects that:
all centrifugal pump bodies are aligned and fixed through the screw rods and the threads of the threaded holes, so that the concentricity is very high, the pressure resistance of the shell can reach 20MPa, the lift is improved by 3MPa, and too many materials and the weight of the pump bodies cannot be increased.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Referring to fig. 2, according to an embodiment of the present invention, there is provided a multistage feed pump, which is configured as follows:
it includes a plurality of centrifugal pump bodies 1, and the shell bilateral symmetry position of every centrifugal pump body is provided with the ear, and shell ear is 10cm thick, and non-ear is 5cm thick, threaded hole 2 is all opened to the ear same position, and each screw hole is connected through a screw rod 3 that sets up the external screw thread.
When the centrifugal pump is installed, the threaded holes of the lugs of each centrifugal pump body are aligned, the screw rods with the external threads are inserted from one end, the bolts are rotated and sequentially inserted into the threaded holes of all the centrifugal pump bodies, and finally the two ends of the bolts are fastened through the nuts, so that all the centrifugal pump bodies are aligned and fixed through the threads of the screw rods and the threaded holes, the concentricity is very high, errors caused by inaccurate and inconsistent sizes of the screw rods and the concentricity difference of the couplers are reduced, the shell thickness is increased to enable the pressure resistance of the shell to reach 20MPa, the lift is improved by 3MPa, but the lugs are added on the two sides to be used for arranging the threaded holes, so that too many materials and the weight of the pump bodies cannot be increased.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (2)
1. Multistage delivery pump, its characterized in that, it includes a plurality of centrifugal pump bodies, and the shell bilateral symmetry position of every centrifugal pump body is provided with the ear, the lug same position all opens threaded hole, and each threaded hole is connected through a screw rod that sets up the external screw thread.
2. The multi-stage feed pump of claim 1, wherein the centrifugal pump body housing ears are 10cm thick and the non-ears are 5cm thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911315709.XA CN111536046A (en) | 2019-12-19 | 2019-12-19 | Multi-stage delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911315709.XA CN111536046A (en) | 2019-12-19 | 2019-12-19 | Multi-stage delivery pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111536046A true CN111536046A (en) | 2020-08-14 |
Family
ID=71979988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911315709.XA Withdrawn CN111536046A (en) | 2019-12-19 | 2019-12-19 | Multi-stage delivery pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111536046A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2957426A (en) * | 1956-12-17 | 1960-10-25 | Ralph C Miller | Series-parallel pump |
| CN2178797Y (en) * | 1993-10-22 | 1994-10-05 | 浙江佑利工程塑料管道总厂 | Plastic centrifugal pump with series multilevel pressure |
| CN201129309Y (en) * | 2007-11-24 | 2008-10-08 | 山东颜山泵业有限公司 | Large-sized flush type mining water discharge pump |
| CN105526195A (en) * | 2014-10-15 | 2016-04-27 | 格兰富控股联合股份公司 | Multi-stage centrifugal pump |
| CN105864053A (en) * | 2016-04-29 | 2016-08-17 | 武汉船用机械有限责任公司 | Vertical multi-level immersed pump |
| CN106640675A (en) * | 2016-10-19 | 2017-05-10 | 滁州市大工机电有限公司 | High-efficiency high-pressure multi-stage barrel centrifugal pump |
| CN206175246U (en) * | 2016-09-08 | 2017-05-17 | 福安市鑫远电机有限公司 | Multi -stage centrifugal pump |
| CN206582127U (en) * | 2017-02-10 | 2017-10-24 | 台州市高典机电有限公司 | A kind of horizontal multi-stage centrifugal pump |
-
2019
- 2019-12-19 CN CN201911315709.XA patent/CN111536046A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2957426A (en) * | 1956-12-17 | 1960-10-25 | Ralph C Miller | Series-parallel pump |
| CN2178797Y (en) * | 1993-10-22 | 1994-10-05 | 浙江佑利工程塑料管道总厂 | Plastic centrifugal pump with series multilevel pressure |
| CN201129309Y (en) * | 2007-11-24 | 2008-10-08 | 山东颜山泵业有限公司 | Large-sized flush type mining water discharge pump |
| CN105526195A (en) * | 2014-10-15 | 2016-04-27 | 格兰富控股联合股份公司 | Multi-stage centrifugal pump |
| CN105864053A (en) * | 2016-04-29 | 2016-08-17 | 武汉船用机械有限责任公司 | Vertical multi-level immersed pump |
| CN206175246U (en) * | 2016-09-08 | 2017-05-17 | 福安市鑫远电机有限公司 | Multi -stage centrifugal pump |
| CN106640675A (en) * | 2016-10-19 | 2017-05-10 | 滁州市大工机电有限公司 | High-efficiency high-pressure multi-stage barrel centrifugal pump |
| CN206582127U (en) * | 2017-02-10 | 2017-10-24 | 台州市高典机电有限公司 | A kind of horizontal multi-stage centrifugal pump |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200814 |
|
| WW01 | Invention patent application withdrawn after publication |