CN104728123A - Vertical multi-stage centrifugal pump and constant-pressure water supply unit - Google Patents
Vertical multi-stage centrifugal pump and constant-pressure water supply unit Download PDFInfo
- Publication number
- CN104728123A CN104728123A CN201510082441.5A CN201510082441A CN104728123A CN 104728123 A CN104728123 A CN 104728123A CN 201510082441 A CN201510082441 A CN 201510082441A CN 104728123 A CN104728123 A CN 104728123A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- vertical multi
- stage centrifugal
- water outlet
- inlet casing
- 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
- F04D1/06—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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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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
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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
- F04D29/08—Sealings
- F04D29/086—Sealings 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
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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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a vertical multi-stage centrifugal pump which comprises a pump body, a motor, a cable and a base. The pump body and the motor are arranged on the base, the centrifugal pump further comprises a pump bowl, and the interior of the pump bowl is divided into an upper cavity and a lower cavity, wherein the upper cavity and the lower cavity are arranged up and down and communicated with each other. The pump body is arranged in the upper cavity, the motor is arranged in the lower cavity in a sealed mode, a water inlet is horizontally formed in the lower end of the lower cavity in the radial direction, the water outlet is communicated with the upper cavity through a fastening bolt, and the water outlet can be located in the lower end of the upper cavity in multiple horizontal directions. The centrifugal pump can avoid leakage caused by mechanical seal abrasion, water flowing in the centrifugal pump can cool the motor, the direction of the water outlet can be adjusted, and installation is convenient and quick. The invention further relates to a constant-pressure water supply unit which comprises a frequency converter and the vertical multi-stage centrifugal pump, the frequency converter is connected with the vertical multi-stage centrifugal pump in a sealed mode, and water flowing in the centrifugal pump can also cool the frequency converter.
Description
Technical field
The invention belongs to a kind of centrifugal pump, particularly relate to a kind of power and be water-cooled machine or shield electric machine and the vertical multi-stage centrifugal pump of pump housing mechanical sealing, the invention still further relates to a kind of constant pressure water supply unit.
Background technique
Constant pressure water supply unit is as a kind of emerging water supply equipment, be applied to the place such as residential building, residential quarters, office building that is newly-built, that extend and transform more, in order to save space and soil, its deposit position is placed in underground pump house mostly, pump house is once accident of metalling run out, unit is not had immersion to damage by water logging, causes whole water system to be paralysed, thus affects the normal life water of people.
Vertical multi-stage centrifugal pump is as the main tool of the several work such as water supply, industrial supercharging, industrial liquid conveying, water treatment, irrigation, because himself structure and the critical component of pump motor such as can not to contact at the many factors with water, it is manufactured and is used cause considerable restraint.When the problem such as run into flood, mechanical seal is damaged, pump house is metalled run out, easily making motor internal intake or make moist causes motor device to damage, and the intake-outlet of vertical multi-stage centrifugal pump usually all point-blank, has certain restriction to construction space, the efficiency of fitting operation is lower simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of vertical multi-stage centrifugal pump, can avoid that the mechanical seal because of centrifugal pump is damaged or the motor feels hot and break down, and being convenient to installation and maintenance.Another technical problem that the present invention will solve is to provide a kind of constant pressure water supply unit of waterproof.
The technological scheme that the present invention solves the problems of the technologies described above is as follows: a kind of vertical multi-stage centrifugal pump, comprise the pump housing, motor, cable and base, the pump housing and motor are positioned on base, this centrifugal pump also comprises blower inlet casing, and be divided into setting up and down and the upper chamber interconnected and lower chambers in described blower inlet casing, the described pump housing is located in upper chamber, capsul is coated with outside motor, be located at bottom chamber, described upper chamber is provided with water outlet described motor seal, and described lower chambers is provided with water intake.
Preferably, described water intake is arranged at the lower end horizontal radial of described lower chambers.Water outlet is communicated with upper chamber by clamping bolt, be convenient to installation and removal, water outlet has multiple horizontal radial orientation in the lower end of upper chamber, water outlet can be carried out substantially horizontal rotation after being dismantled by clamping bolt, such as 90-degree rotation, 180 degree or 270 degree, avoid water outlet and water intake to bring inconvenience to fitting operation on the same line.
Preferably, blower inlet casing comprises into water blower inlet casing and water outlet blower inlet casing, and described water inlet blower inlet casing forms lower chambers, and described water outlet blower inlet casing forms upper chamber.Water outlet blower inlet casing lower end is connected with the upper end of water outlet, and the lower end of water outlet is connected with water inlet blower inlet casing upper end, and is provided with Sealing in joint, is preferably the sealing of O type circle.The lower end of water inlet blower inlet casing is connected with base, and is provided with Sealing in joint, is preferably the sealing of O type circle.Water outlet blower inlet casing upper end is connected with centrifugal pump top, and is provided with Sealing in joint, is preferably the sealing of O type circle.
Adopt a kind of constant pressure water supply unit of above-mentioned vertical multi-stage centrifugal pump, comprise frequency variator and described vertical multi-stage centrifugal pump, cast aluminium capsul is provided with outside frequency variator, frequency variator is fixedly connected with the radiator of the blower inlet casing outer wall of described vertical multi-stage centrifugal pump completely hermetically, and the material of radiator can be stretching aluminum component.Can produce heat in frequency variator running, the water circulated in described centrifugal pump can play the effect of heat radiation to frequency variator.Common shell of frequency converter can adopt engineering plastic PC or ABS, hot-dip galvanizing sheet steel, the materials such as cast iron, and described frequency variator adopts cast aluminium shell, easily processes, excellent in heat dissipation effect, better ensure that the functions such as the sealing of frequency variator and heat radiation.
Based on technique scheme, the present invention has following beneficial effect: described vertical multi-stage centrifugal pump adopts mechanical sealing, avoids the leakage occurred because of machine's sealing; Motor seal is placed in bottom chamber, and the motor of water to inner sealing flowed through into water blower inlet casing has the effect of cooling, avoids the damage that external environment causes motor simultaneously; Water outlet adopts bolt demountable structure, can according to different installation environments, and selection water outlet being carried out to the multiple substantially horizontal in front, rear, left and right is arranged, and is convenient to fitting operation.
Adopt a kind of constant pressure water supply unit of above-mentioned vertical multi-stage centrifugal pump, the cold water flowing through centrifugal pump is relied on to lower the temperature to frequency variator, and frequency variator and centrifugal pump are hermetic water-proof structure, effectively can avoid because unit is flooded in pump house water inlet and make device fails, thus ensureing normal water supply.
Accompanying drawing explanation
Fig. 1 is the structural representation of constant pressure water supply unit;
Fig. 2 is the structural representation of vertical multi-stage centrifugal pump.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of constant pressure water supply unit, comprise vertical multi-stage centrifugal pump 1 and frequency variator 2, be provided with cast aluminium capsul 3 outside frequency variator 2, frequency variator 2 is fixedly connected with the radiator of the outer wall of vertical multi-stage centrifugal pump 1 completely hermetically.Can produce heat in frequency variator 2 running, in vertical multi-stage centrifugal pump 1, the water of circulation can play the effect of heat radiation to frequency variator 2.As shown in Figure 2, a kind of vertical multi-stage centrifugal pump 1, comprise the pump housing 12, motor 22, cable 40 and base 30, the pump housing 12 and motor 22 are positioned on base 30, this centrifugal pump also comprises blower inlet casing, setting up and down and the upper chamber 10 interconnected and lower chambers 20 is divided in described blower inlet casing, the described pump housing 12 is located in upper chamber 10, capsul 23 is coated with outside motor 22, described motor 22 is located in lower chambers 20 hermetically, described upper chamber 10 is provided with water outlet 14, and described lower chambers 20 is provided with water intake 24.Preferably, water intake 24 is arranged at the lower end horizontal radial of lower chambers 20, and water outlet 14 is communicated with upper chamber 10 by clamping bolt, is convenient to installation and removal.Water outlet 14 has multiple horizontal radial orientation in the lower end of upper chamber 10, water outlet 14 can be carried out substantially horizontal rotation after being dismantled by clamping bolt, such as 90-degree rotation, 180 degree or 270 degree, avoid water outlet 14 and water intake 24 to bring inconvenience to fitting operation on the same line.
Preferably, blower inlet casing comprises into water blower inlet casing 21 and water outlet blower inlet casing 11, and water inlet blower inlet casing 21 forms lower chambers 20, and water outlet blower inlet casing 11 forms upper chamber 10.The lower end of water inlet blower inlet casing 21 is connected with base 30, and is provided with the sealing of O type circle 4 25 in joint.Water outlet blower inlet casing 11 lower end is connected with the upper end of water outlet 14, is provided with the sealing of O type circle 2 18 in joint, and the lower end of water outlet 14 is connected with the upper end of water inlet blower inlet casing 21, is provided with the sealing of O type circle 3 19 in joint.Water outlet blower inlet casing 11 upper end is connected with centrifugal pump top, and is provided with the sealing of O type circle 1 in joint.
When unit works, tap water is entered in lower chambers 20 by water intake 24, then enters in upper chamber 10 by the pump housing 12 by hydraulic pressure, and then being flowed out by water outlet 14 is that user supplies water.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a vertical multi-stage centrifugal pump, comprise the pump housing, motor, cable and base, the described pump housing and described motor are positioned on described base, it is characterized in that: described vertical multi-stage centrifugal pump also comprises blower inlet casing, be divided into setting up and down and the upper chamber interconnected and lower chambers in described blower inlet casing, the described pump housing is located in upper chamber, capsul is coated with outside described motor, be located at bottom chamber, described upper chamber is provided with water outlet described motor seal, and described lower chambers is provided with water intake.
2. a kind of vertical multi-stage centrifugal pump according to claim 1, is characterized in that, described water intake is arranged at the lower end horizontal radial of described lower chambers.
3. a kind of vertical multi-stage centrifugal pump according to claim 2, is characterized in that, described water outlet is communicated with upper chamber by clamping bolt, and described water outlet is arranged at upper chamber's lower end horizontal radial.
4. a kind of vertical multi-stage centrifugal pump according to claim 3, is characterized in that, described blower inlet casing comprises into water blower inlet casing and water outlet blower inlet casing, and described water inlet blower inlet casing forms described lower chambers, and described water outlet blower inlet casing forms described upper chamber.
5. a kind of vertical multi-stage centrifugal pump according to claim 4, is characterized in that, described water outlet blower inlet casing lower end is connected with the upper end of described water outlet, and the lower end of described water outlet is connected with described water inlet blower inlet casing upper end, and is provided with Sealing in joint.
6. a kind of vertical multi-stage centrifugal pump according to claim 4, is characterized in that, the lower end of described water inlet blower inlet casing is connected with described base, and is provided with Sealing in joint.
7. a kind of vertical multi-stage centrifugal pump according to claim 4, is characterized in that, described water outlet blower inlet casing upper end is connected with described centrifugal pump top, and is provided with Sealing in joint.
8. a kind of vertical multi-stage centrifugal pump according to any one of claim 5 to 7, is characterized in that, described Sealing is O type circle.
9. a constant pressure water supply unit, it is characterized in that, comprise frequency variator and the vertical multi-stage centrifugal pump according to any one of claim 1 to 7, the blower inlet casing outer wall of described vertical multi-stage centrifugal pump is provided with the radiator of stretching aluminum component material, described frequency variator is fixedly connected with described radiator, is provided with cast aluminium capsul outside described frequency variator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082441.5A CN104728123A (en) | 2015-02-15 | 2015-02-15 | Vertical multi-stage centrifugal pump and constant-pressure water supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082441.5A CN104728123A (en) | 2015-02-15 | 2015-02-15 | Vertical multi-stage centrifugal pump and constant-pressure water supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728123A true CN104728123A (en) | 2015-06-24 |
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ID=53452385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510082441.5A Pending CN104728123A (en) | 2015-02-15 | 2015-02-15 | Vertical multi-stage centrifugal pump and constant-pressure water supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728123A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485025A (en) * | 2015-12-30 | 2016-04-13 | 新开利（上海）水务有限公司 | Water-cooling energy-saving silent pump |
| CN109681434A (en) * | 2019-01-24 | 2019-04-26 | 滨特尔(上海)投资有限公司 | A kind of water-cooled energy-saving silent pump |
| WO2019152951A1 (en) * | 2018-02-05 | 2019-08-08 | Franklin Electric Co., Inc. | Modular submersible motor and pump assembly |
| CN111425411A (en) * | 2020-03-31 | 2020-07-17 | 涂程光 | Pump in middle part inlet tube |
| CN113890275A (en) * | 2021-08-23 | 2022-01-04 | 沈阳科来沃电气技术有限公司 | Water self-cooling heat dissipation system for water pump alternating current motor |
| US11466691B2 (en) | 2018-02-05 | 2022-10-11 | Franklin Electric Co., Inc. | Fault protection for a pump-motor assembly |
Citations (9)
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| US3975117A (en) * | 1974-09-27 | 1976-08-17 | James Coolidge Carter | Pump and motor unit with inducer at one end and centrifugal impeller at opposite end of the motor |
| CN2415186Y (en) * | 2000-04-16 | 2001-01-17 | 广西博士通集团有限责任公司 | Unit construction centrifugal water pump |
| CN1292071A (en) * | 1998-03-04 | 2001-04-18 | 株式会社荏原制作所 | Performance regulating device for fluid machinery |
| CN2604542Y (en) * | 2003-01-29 | 2004-02-25 | 上海凯泉泵业（集团）有限公司 | Multistage centrifugal pump |
| US20050047933A1 (en) * | 2002-10-04 | 2005-03-03 | Gianni Ottoboni | Low-noise pump cooled by the pumped water |
| CN102777387A (en) * | 2012-07-10 | 2012-11-14 | 芜湖水泵制造有限公司 | Vertical type multistage water feed pump |
| CN102828968A (en) * | 2011-06-14 | 2012-12-19 | 开利泵业(集团)有限公司 | Energy-saving and low-noise centrifugal pump |
| CN102852194A (en) * | 2011-06-27 | 2013-01-02 | 深圳市四方电气技术有限公司 | Constant-pressure water supply system and method without negative pressure |
| CN204646684U (en) * | 2015-02-15 | 2015-09-16 | 山东洪涨泵业有限公司 | A kind of vertical multi-stage centrifugal pump and constant pressure water supply unit |
-
2015
- 2015-02-15 CN CN201510082441.5A patent/CN104728123A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3975117A (en) * | 1974-09-27 | 1976-08-17 | James Coolidge Carter | Pump and motor unit with inducer at one end and centrifugal impeller at opposite end of the motor |
| CN1292071A (en) * | 1998-03-04 | 2001-04-18 | 株式会社荏原制作所 | Performance regulating device for fluid machinery |
| CN2415186Y (en) * | 2000-04-16 | 2001-01-17 | 广西博士通集团有限责任公司 | Unit construction centrifugal water pump |
| US20050047933A1 (en) * | 2002-10-04 | 2005-03-03 | Gianni Ottoboni | Low-noise pump cooled by the pumped water |
| CN2604542Y (en) * | 2003-01-29 | 2004-02-25 | 上海凯泉泵业（集团）有限公司 | Multistage centrifugal pump |
| CN102828968A (en) * | 2011-06-14 | 2012-12-19 | 开利泵业(集团)有限公司 | Energy-saving and low-noise centrifugal pump |
| CN102852194A (en) * | 2011-06-27 | 2013-01-02 | 深圳市四方电气技术有限公司 | Constant-pressure water supply system and method without negative pressure |
| CN102777387A (en) * | 2012-07-10 | 2012-11-14 | 芜湖水泵制造有限公司 | Vertical type multistage water feed pump |
| CN204646684U (en) * | 2015-02-15 | 2015-09-16 | 山东洪涨泵业有限公司 | A kind of vertical multi-stage centrifugal pump and constant pressure water supply unit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485025A (en) * | 2015-12-30 | 2016-04-13 | 新开利（上海）水务有限公司 | Water-cooling energy-saving silent pump |
| WO2019152951A1 (en) * | 2018-02-05 | 2019-08-08 | Franklin Electric Co., Inc. | Modular submersible motor and pump assembly |
| US11466691B2 (en) | 2018-02-05 | 2022-10-11 | Franklin Electric Co., Inc. | Fault protection for a pump-motor assembly |
| CN109681434A (en) * | 2019-01-24 | 2019-04-26 | 滨特尔(上海)投资有限公司 | A kind of water-cooled energy-saving silent pump |
| CN111425411A (en) * | 2020-03-31 | 2020-07-17 | 涂程光 | Pump in middle part inlet tube |
| CN113890275A (en) * | 2021-08-23 | 2022-01-04 | 沈阳科来沃电气技术有限公司 | Water self-cooling heat dissipation system for water pump alternating current motor |
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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: 20150624 |