CN110360120A - A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller - Google Patents
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller Download PDFInfo
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- CN110360120A CN110360120A CN201910670752.1A CN201910670752A CN110360120A CN 110360120 A CN110360120 A CN 110360120A CN 201910670752 A CN201910670752 A CN 201910670752A CN 110360120 A CN110360120 A CN 110360120A
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- Prior art keywords
- pump
- stage
- impeller
- centrifugal pump
- shaft
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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
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- 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
- F04D29/06—Lubrication
- F04D29/061—Lubrication 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
- F04D29/18—Rotors
- F04D29/185—Rotors consisting of a plurality of wheels
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, is related to a kind of centrifugal pump, which is connected by shaft coupling with driving shaft, and the shaft coupling uses flexible membrane shaft coupling；Centrifugal pump is equipped with balance mechanism, and uses vertical thin oil self-lubricating bearing body, which uses disc structure；Centrifugal pump first stage impeller is independently installed in pump bottom, and first stage impeller discharge opening position is equipped with chopped-off head blower inlet casing, is connected by axis connection component with transmission shaft, pump shaft is matched by guide bearing with pump case；And the top for having multiple impellers to be installed on pump, impeller are installed on transmission shaft, by axis connection component and active axis connection, transmission shaft is matched by guide bearing with pump case, and impeller discharge opening position is equipped with blower inlet casing.Product of the present invention is especially suitable for uninterrupted operating, the vertical multi-stage submerged centrifugal pump of heavy load, high speed for many years, for example, being applied to the places such as petrochemical industry pipeline.
Description
Technical field
The present invention relates to a kind of centrifugal pumps, more particularly to a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller.
Background technique
Upright type liquid discharge centrifugal pump used in China's oil chemical industry is more, is chiefly used in tank field medium in lift pot,
Its medium has corrosivity more.Currently used vertical multi-stage submerged centrifugal pump impeller is respectively positioned on centrifugal pump bottom, transports in high speed
During row, will lead to bottom position under the influence of centrifugal force has biggish swing, will lead to pump vibration aggravation, seal failure
And multiple parts depreciations are serious in pumping, and are unable to satisfy long period uninterrupted operation.To solve this problem, it is necessary to develop one kind
New vertical multi-stage submerged centrifugal pump.
Summary of the invention
The purpose of the present invention is to provide a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the purpose of the present invention
It is to provide a kind of vertical multi-stage submerged centrifugal pump that can be run without interruption with long period, first stage impeller is independently installed in pump
Bottom, remaining impeller are installed on close to position of bearings, to reduce generated vibration problems during high-speed cruising, reduce
The phenomenon that pumping vibration index, extending sealing service life, solve pump inner body serious wear.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the centrifugal pump include strum, sucking spiral case, chopped-off head
Impeller, guide bearing, pump shaft, transmission shaft, axis connection component, impeller, blower inlet casing, lifting pipe, mounting base, is spat chopped-off head blower inlet casing
Outlet pipe component, balance mechanism, sealing, driving shaft, self-lubricating bearing body, electric machine support, shaft coupling；Centrifugal pump driving motor peace
Loaded on electric machine support, it is connected by shaft coupling with driving shaft, the shaft coupling uses flexible membrane shaft coupling；Centrifugal pump is set
There is balance mechanism, and use vertical thin oil self-lubricating bearing body, which uses disc structure；Centrifugal pump first stage impeller is only
Vertical to be installed on pump bottom, first stage impeller suction inlet position is equipped with sucking spiral case, and first stage impeller discharge opening position is equipped with chopped-off head
Blower inlet casing, first stage impeller are mounted on pump shaft, are connected by axis connection component with transmission shaft, and pump shaft is outer by guide bearing and pump
Shell phase cooperation；And the top for having multiple impellers to be installed on pump, impeller are installed on transmission shaft, by axis connection component and actively
Axis connection, transmission shaft are matched by guide bearing with pump case, and impeller discharge opening position is equipped with blower inlet casing.
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the centrifugal pump are equipped with independently installed the bottom of in
The first stage impeller of portion's smaller diameter, and remaining multiple impeller is installed near mounting base, and close to self-lubricating bearing body, simultaneously
Multiple groups guide bearing is equipped near first stage impeller and impeller.
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the sucking spiral case axially connect chopped-off head leaf
Wheel, and lifting pipe, impeller connection are connect with chopped-off head blower inlet casing, and be connected with discharge pipe component by blower inlet casing.
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the sucking spiral case are equipped with strum.
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the pump shaft, transmission shaft, driving shaft pass through
Axis connection component is interconnected.
A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the sucking spiral case, are raised chopped-off head blower inlet casing
Water pipe, blower inlet casing, mounting base, discharge pipe component are mutually connected to each other by stud, nut and gasket, and by O-shaped close
Seal is sealed faying face.
Packing seal or machinery are selected in a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, the sealing
Sealing.
The advantages and effects of the present invention are:
1. the present invention uses according to depth under liquid the first stage impeller of the smaller diameter of independent design, and its is independently installed in pump
Bottom, can maximumlly reduce because pump bottom far from self-lubricating bearing body caused by swing under the action of the centrifugal force it is excessive
The problem of, while the pump shaft that it is mounted on is limited using multiple groups guide bearing, this part is further promoted in high speed rotation
When stability, while reduce pump inner body abrasion, extend pump component service life while extend pump continuously run
Time.
2. the multiple impellers of the present invention are mounted near mounting base, closer with self-lubricating bearing body, while using multiple groups
Guide bearing limits the transmission shaft that it is mounted on, and can effectively solve the pendulum because caused by multiple impellers are installed in pump bottom
Move excessive problem.
3. first stage impeller of the present invention and impeller are provided with the chopped-off head blower inlet casing and blower inlet casing to match with its hydraulic model,
Keep flowing of the fluid in pump more stable, reduce the turbulent flow being likely to occur, vortex phenomenon, fluid generates in smaller operational process
Impact force, it is further provided the stability of pump operation.
4. the present invention uses the balance mechanism of optimization design, can axial force caused by active balance multi-stage impeller, reduce
The stress of bearing promotes bearing service life, while elevator pump continuous and steady operation time.
5. the present invention uses self-lubricating bearing body, thin oil self-lubricating is carried out to bearing by disc structure, it can be more preferable
Guarantee that bearing operates for a long time at a lower temperature, keeps oil lubrication performance, effectively improve bearing service life.
Detailed description of the invention
Fig. 1 is centrifugal pump overall structure diagram of the present invention.
Component in figure: strum 1, sucking spiral case 2, first stage impeller 3, chopped-off head blower inlet casing 4, guide bearing 5, pump shaft 6, transmission
It is axis 7, axis connection component 8, impeller 9, blower inlet casing 10, lifting pipe 11, mounting base 12, discharge pipe component 13, balance mechanism 14, close
Seal 15, driving shaft 16, self-lubricating bearing body 17, electric machine support 18, shaft coupling 19.
Specific embodiment
The present invention is described in detail for illustrated embodiment with reference to the accompanying drawing.
The vertical multi-stage submerged centrifugal pump of independence first stage impeller of the present invention, by strum, sucking spiral case, first stage impeller,
Chopped-off head blower inlet casing, guide bearing, pump shaft, transmission shaft, axis connection component, impeller, blower inlet casing, mounting base, discharge pipe component, balance
The composition such as mechanism, sealing, driving shaft, self-lubricating bearing body, electric machine support, shaft coupling.
State the vertical multi-stage submerged centrifugal pump of independent first stage impeller, the independently installed bottom in pump of first stage impeller.Chopped-off head
Suction eye position is equipped with sucking spiral case, can to flow into first stage impeller fluid play guide functions, avoid fluid into
Vortex is generated when entering first stage impeller.First stage impeller discharge opening position is equipped with chopped-off head blower inlet casing, and it is defeated can effectively to collect first stage impeller
Fluid out reduces energy loss caused by process fluid flow.First stage impeller is mounted on pump shaft, passes through axis connection component
Be connected with transmission shaft, as high speed rotation, pump shaft are matched by guide bearing with pump case transmission shaft together, with improve its
Stability when high speed rotation.First stage impeller can use smaller impeller diameter as far as possible in the case where performance allows, to subtract
Small radial force generated in high-speed rotation process, to reduce the dancing of pump bottom.
The vertical multi-stage submerged centrifugal pump of independent first stage impeller, multiple impellers are installed on the top of pump, due to installation position
Nearly mounting base and bearing body are rested against, operation stability is more preferable.Impeller is installed on transmission shaft, passes through axis connection component and master
Moving axis connection, as high speed rotation, transmission shaft are matched by guide bearing with pump case driving shaft together, to improve it in high speed
Stability when rotation.Impeller discharge opening position is equipped with blower inlet casing, can effectively collect the fluid of impeller output, reduces fluid stream
Energy loss caused by during dynamic.The vertical multi-stage submerged centrifugal pump of independent first stage impeller, uses the balance of optimization design
Mechanism, balance mechanism can balance the axial force as caused by multi-stage impeller high-speed cruising, reduce the axial direction that pump bearing is born
Power improves bearing service life.
The vertical multi-stage submerged centrifugal pump of independent first stage impeller, uses vertical thin oil self-lubricating bearing body, and bearing body is adopted
It with disc structure, can more preferably guarantee that bearing operates for a long time at a lower temperature, keep oil lubrication performance, effectively improve axis
Hold service life.The vertical multi-stage submerged centrifugal pump of independent first stage impeller, driving motor are installed on electric machine support, pass through connection
Axis device is connected with driving shaft, and the shaft coupling uses flexible membrane shaft coupling, and the installation of maximizing small electromotor may cause
Misalign situation.
Embodiment 1
Shown in Fig. 1, a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, including strum 1, sucking spiral case 2, chopped-off head
Impeller 3, chopped-off head blower inlet casing 4, guide bearing 5, pump shaft 6, transmission shaft 7, axis connection component 8, impeller 9, blower inlet casing 10, lifting pipe 11,
Mounting base 12, discharge pipe component 13, balance mechanism 14, sealing 15, driving shaft 16, self-lubricating bearing body 17, electric machine support 18,
Shaft coupling 19.
Centrifugal pump uses the first stage impeller 3 of the independently installed smaller diameter in bottom, and remaining multiple impeller 9 is installed on
It fills near bottom plate 12, and close to self-lubricating bearing body 17, while being all made of multiple groups guide bearing near first stage impeller 3 and impeller 9
5, it can effectively solve previous all impellers and be mounted on caused by pump bottom to swing laterally under radial force effect excessive, make
At vibrate it is excessive, pump in parts depreciation it is serious, can not long period continuous and steady operation the problem of.
The strum 1, may filter that controlled-size solid particle in fluid, to prevent large scale solid particle from entering
Part is caused to damage in pump.
The sucking spiral case 2 can carry out water conservancy diversion to the fluid for entering first stage impeller 3, and pass through chopped-off head blower inlet casing 4 for chopped-off head
The fluid that impeller 3 exports imports in lifting pipe 11, and enters impeller 9, while defeated by the fluid that blower inlet casing 10 exports impeller 9
It send to discharge pipe component 13, then defeated Song is into discharge pipeline.
The pump shaft 6, transmission shaft 7, driving shaft 16 are interconnected by axis connection component 8.
The sucking spiral case 3, chopped-off head blower inlet casing 4, lifting pipe 11, blower inlet casing 10, mounting base 12, discharge pipe component 13 are logical
It crosses stud, nut and gasket to be mutually connected to each other, and faying face is sealed by O sealing ring.
The sealing 15, can be sealed, to prevent fluid leakage, according to specific between rotary part and stationary parts
Packing seal or mechanical seal can be selected in situation.
The guide bearing 5, self-lubricating bearing body 17, while bearing shafting and running generated radial force, play stable axis
It is the effect of operation, while the bearing in self-lubricating bearing body 17 can bear residual axial force.
Claims (7)
1. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller, which is characterized in that the centrifugal pump include strum,
Sucking spiral case, chopped-off head blower inlet casing, guide bearing, pump shaft, transmission shaft, axis connection component, impeller, blower inlet casing, pumps up water at first stage impeller
Pipe, mounting base, discharge pipe component, balance mechanism, sealing, driving shaft, self-lubricating bearing body, electric machine support, shaft coupling；It should be from
Heart pump driving motor is installed on electric machine support, is connected by shaft coupling with driving shaft, and the shaft coupling uses flexible membrane
Shaft coupling；Centrifugal pump is equipped with balance mechanism, and uses vertical thin oil self-lubricating bearing body, which uses disc structure；
Centrifugal pump first stage impeller is independently installed in pump bottom, and first stage impeller suction inlet position is equipped with sucking spiral case, and first stage impeller spues
Mouth position is equipped with chopped-off head blower inlet casing, and first stage impeller is mounted on pump shaft, is connected by axis connection component with transmission shaft, pump shaft
It is matched by guide bearing with pump case；And the top for having multiple impellers to be installed on pump, impeller are installed on transmission shaft, are passed through
Axis connection component and active axis connection, transmission shaft are matched by guide bearing with pump case, and impeller discharge opening position is equipped with
Blower inlet casing.
2. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller according to claim 1, which is characterized in that described
Centrifugal pump is equipped with the independently installed first stage impeller (3) in bottom smaller diameter, and remaining multiple impeller (9) is installed on mounting base
(12) near, and close to self-lubricating bearing body (17), while multiple groups guide shaft is nearby equipped in first stage impeller (3) and impeller (9)
Hold (5).
3. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller according to claim 1, which is characterized in that described
Spiral case (2) axially connection first stage impeller (3) is sucked, and connect lifting pipe (11), impeller (9) connection with chopped-off head blower inlet casing (4), with
And it is connected by blower inlet casing (10) with discharge pipe component (13).
4. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller according to claim 3, which is characterized in that described
It sucks spiral case (2) and is equipped with strum (1).
5. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller according to claim 1, which is characterized in that described
Pump shaft (6), transmission shaft (7), driving shaft (16) are interconnected by axis connection component (8).
6. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller according to claim 1, which is characterized in that described
Sucking spiral case (3), chopped-off head blower inlet casing (4), lifting pipe (11), blower inlet casing (10), mounting base (12), discharge pipe component (13) are logical
It crosses stud, nut and gasket to be mutually connected to each other, and faying face is sealed by O sealing ring.
7. a kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller according to claim 6, which is characterized in that described
It seals (15) and selects packing seal or mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670752.1A CN110360120A (en) | 2019-07-24 | 2019-07-24 | A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910670752.1A CN110360120A (en) | 2019-07-24 | 2019-07-24 | A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110360120A true CN110360120A (en) | 2019-10-22 |
Family
ID=68220910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910670752.1A Pending CN110360120A (en) | 2019-07-24 | 2019-07-24 | A kind of vertical multi-stage submerged centrifugal pump of independent first stage impeller |
Country Status (1)
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| CN (1) | CN110360120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024092348A1 (en) * | 2022-11-01 | 2024-05-10 | CPC Pumps International | Vertically suspended centrifugal pump with integral speed reducer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241854Y (en) * | 2008-08-21 | 2009-05-20 | 周寿云 | Single-suction multilevel vertical centrifugal condensation pump |
| CN201288672Y (en) * | 2008-09-25 | 2009-08-12 | 上海凯士比泵有限公司 | Secondary impeller upper disposing type condensation water pump |
| CN201386658Y (en) * | 2009-04-16 | 2010-01-20 | 沈阳启源工业泵制造有限公司 | Vertical condensate pump |
| CN102116319A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Condensate pump used in nuclear power station |
| CN203023135U (en) * | 2013-01-08 | 2013-06-26 | 长沙利欧天鹅工业泵有限公司 | High-efficiency energy-saving vertical barrel-type condensate pump |
| CN208169135U (en) * | 2018-05-07 | 2018-11-30 | 沈阳市工业泵厂(有限公司) | A kind of used in nuclear power station low-pressure heater and drainage pump |
-
2019
- 2019-07-24 CN CN201910670752.1A patent/CN110360120A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241854Y (en) * | 2008-08-21 | 2009-05-20 | 周寿云 | Single-suction multilevel vertical centrifugal condensation pump |
| CN201288672Y (en) * | 2008-09-25 | 2009-08-12 | 上海凯士比泵有限公司 | Secondary impeller upper disposing type condensation water pump |
| CN201386658Y (en) * | 2009-04-16 | 2010-01-20 | 沈阳启源工业泵制造有限公司 | Vertical condensate pump |
| CN102116319A (en) * | 2010-12-30 | 2011-07-06 | 上海阿波罗机械股份有限公司 | Condensate pump used in nuclear power station |
| CN203023135U (en) * | 2013-01-08 | 2013-06-26 | 长沙利欧天鹅工业泵有限公司 | High-efficiency energy-saving vertical barrel-type condensate pump |
| CN208169135U (en) * | 2018-05-07 | 2018-11-30 | 沈阳市工业泵厂(有限公司) | A kind of used in nuclear power station low-pressure heater and drainage pump |
Non-Patent Citations (2)
| Title |
|---|
| 兰一豌: ""凝结水泵培训精品PPT课件"", 《百度文库》 * |
| 大飞哥哥哥贼嗨: ""筒袋泵"", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024092348A1 (en) * | 2022-11-01 | 2024-05-10 | CPC Pumps International | Vertically suspended centrifugal pump with integral speed reducer |
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Application publication date: 20191022 |