CN113107863A - Water-cooling efficient multistage pump - Google Patents
Water-cooling efficient multistage pump Download PDFInfo
- Publication number
- CN113107863A CN113107863A CN202110556221.7A CN202110556221A CN113107863A CN 113107863 A CN113107863 A CN 113107863A CN 202110556221 A CN202110556221 A CN 202110556221A CN 113107863 A CN113107863 A CN 113107863A
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- China
- Prior art keywords
- water
- motor
- flange
- guide body
- flow guide
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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
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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
- 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
- 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
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
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- 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 water-cooling high-efficiency multistage pump, which comprises a water inlet flange, an outer cylinder and a water outlet flange, wherein the outer cylinder is of a hollow tubular structure, the upper end and the lower end of the outer cylinder are respectively provided with the water outlet flange and the water inlet flange, the water inlet flange is provided with a water inlet channel, a support is arranged in the outer cylinder and positioned between the water inlet flange and the water outlet flange, the support is provided with an inner cavity, the lower part of the inner cavity is provided with a water flow channel, the upper end opening of the inner cavity is provided with a cylindrical flow guide body, the upper end opening and the lower end opening of the cylindrical flow guide body are respectively sealed by a final-stage flow guide body and a first-stage flow guide body, the lower end of the support is provided with a water-cooling motor, the upper end of an output shaft of the water-cooling motor penetrates through the support and is connected with. The invention aims to achieve the purposes of improving the power density of the motor, reducing the volume of the motor, improving the efficiency of the multistage centrifugal pump, reducing the noise of the multistage centrifugal pump and the like.
Description
Technical Field
The invention relates to the technical field of vertical multistage centrifugal pumps, in particular to a water-cooling efficient multistage pump.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, and is mainly used to transfer liquid including water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal. The technical parameters of the water pump performance include flow, suction lift, cavitation allowance, shaft power, water power, efficiency and the like.
The motor of traditional water pump configuration is standard forced air cooling induction motor basically, takes away the heat that produces in the motor working process through the fan circulation, cools off the motor.
The multistage centrifugal pump with the standard air cooling motor mainly has three problems: firstly, the power density of the motor is low, and the volume of the motor is large; secondly, the noise of the water pump is high; and thirdly, the efficiency of the motor is reduced due to the loss of the fan of the motor, so that the efficiency of the multistage centrifugal pump unit is reduced.
Disclosure of Invention
The invention aims to provide a water-cooling high-efficiency multistage pump so as to achieve the purposes of improving the power density of a motor, reducing the volume of the motor, improving the efficiency of a multistage centrifugal pump, reducing the noise of the multistage centrifugal pump and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: provides a water-cooling high-efficiency multistage pump, which comprises a water inlet flange, an outer cylinder and a water outlet flange, wherein the outer cylinder is in a hollow tubular structure, the upper end and the lower end of the outer cylinder are respectively provided with a water outlet flange and a water inlet flange, the water inlet flange is provided with a water inlet channel, a bracket is arranged between the water inlet flange and the water outlet flange in the outer cylinder, the bracket is provided with an inner cavity, the lower part of the inner cavity is provided with a water flow channel, the opening at the upper end of the inner cavity is provided with a cylindrical flow guide body, the upper and lower ports of the cylindrical flow guiding body are respectively sealed by a final-stage flow guiding body and a first-stage flow guiding body, the lower end of the bracket is provided with a water-cooling motor, the upper end of an output shaft of the water-cooling motor penetrates through the support and is connected with a driving shaft, a first impeller and a second impeller are sequentially installed on the upper portion of the driving shaft from bottom to top, and the first impeller and the second impeller are located between the first-stage flow guide body and the last-stage flow guide body.
As a supplement to the technical scheme of the invention, a sealing gasket is arranged between the upper port of the water outlet flange and the upper port of the cylindrical flow guide body.
As a supplement to the technical scheme of the present invention, the first impeller and the second impeller are both provided with spline protrusions, and the driving shaft is provided with spline structures corresponding to the spline protrusions.
As a supplement to the technical scheme of the invention, the water-cooled motor is a high-speed permanent magnet motor.
As a supplement to the technical scheme of the invention, the water-cooled motor comprises a motor shell and a motor assembly, the interior of the motor shell is divided into an upper layer and a lower layer by a partition plate, the upper layer is provided with the motor assembly, and the lower layer is provided with a frequency converter.
As a supplement to the technical scheme of the invention, the inner wall of the lower part of the motor shell is provided with a mounting plate, and the frequency converter is assembled on the mounting plate.
As a supplement to the technical scheme of the invention, a controller and a touch screen connected with the controller are installed on the outer side of the outer cylinder, and the frequency converter is connected with the controller through a lead. The touch screen is connected with the outer barrel through bolts.
As a supplement to the technical solution of the present invention, the controller is integrated with the touch screen.
As a supplement to the technical solution of the present invention, a seal ring is installed between the touch screen and the outer cylinder.
As a supplement to the technical scheme of the invention, a mechanical seal sleeved on an output shaft of the water-cooled motor is arranged in the inner cavity.
As a supplement to the technical solution of the present invention, the driving shaft is sleeved with a shaft sleeve for isolating the driving shaft from the first stage flow guide body and the last stage flow guide body.
Has the advantages that: the invention relates to a water-cooling high-efficiency multistage pump, which adopts the structures of a water-cooling permanent magnet motor and a water-cooling frequency converter, so that the motor efficiency is higher, and the service life of the frequency converter is longer; the water cooling structure removes a cooling fan, so that the noise of the motor is lower, the loss is reduced, and the efficiency of the motor is improved, thereby improving the efficiency of the water pump; the water-cooled motor is a high-speed permanent magnet motor, the motor has smaller volume and high power density, and the material cost is saved; the high-efficiency multistage pump is a pipeline type structure multistage centrifugal pump, and is compact and simple in structure and convenient to install.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The figure is as follows: 1. the water inlet device comprises a water inlet flange, 2, an outer cylinder, 3, a support, 4, a shaft sleeve, 5, a first-stage flow guide body, 6, a first impeller, 7, a second impeller, 8, a cylindrical flow guide body, 9, a water outlet flange, 10, a sealing gasket, 11, a last-stage flow guide body, 12, a driving shaft, 13, a spindle nose nut, 14, a mounting plate, 15, a frequency converter, 16, a bolt, 17, a water-cooling motor, 18, a mechanical seal, 19, a bolt, 20, a sealing ring, 21, a controller, 22, a touch screen, 23, a water inlet channel, 24, a water flow channel, 25, an inner cavity, 26 and a partition plate.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a water-cooling high-efficiency multistage pump, as shown in figure 1, which comprises a water inlet flange 1, an outer cylinder 2 and a water outlet flange 9, wherein the outer cylinder 2 is of a hollow tubular structure, the upper end and the lower end of the outer cylinder 2 are respectively provided with the water outlet flange 9 and the water inlet flange 1, the water inlet flange 1 is provided with a water inlet channel 23, a bracket 3 is arranged between the water inlet flange 1 and the water outlet flange 9 in the outer cylinder 2, the bracket 3 is provided with an inner cavity 25, the lower part of the inner cavity 25 is provided with a water channel 24, the upper end opening of the inner cavity 25 is provided with a cylindrical flow guide body 8, the upper end and the lower end opening of the cylindrical flow guide body 8 are respectively sealed by a final-stage flow guide body 11 and a first-stage flow guide body 5, the lower end of the bracket 3 is provided with a water-cooling motor 17, the upper end of an output, the upper part of the driving shaft 12 is sequentially provided with a first impeller 6 and a second impeller 7 from bottom to top, and the first impeller 6 and the second impeller 7 are positioned between the first-stage flow guide body 5 and the last-stage flow guide body 11.
And a sealing gasket 10 is arranged between the upper port of the water outlet flange 9 and the upper port of the cylindrical flow guide body 8.
The first impeller 6 and the second impeller 7 are both provided with spline protrusions, and the driving shaft 12 is provided with spline structures corresponding to the spline protrusions. The spline structure cooperates with the spline projections to prevent relative rotation between the impeller and the drive shaft 12.
The first-stage flow guide body 5, the first impeller 6, the second impeller 7, the cylindrical flow guide body 8 and the final-stage flow guide body 11 form a multi-stage pump hydraulic component; the water-cooling motor 17 and the hydraulic component are designed coaxially, the driving shaft 12 is connected with the water-cooling motor 17 and the hydraulic component of the multi-stage pump through the bracket 3, and a coupler is omitted due to the coaxial design.
Water-cooled motor 17 include motor housing and motor element, motor housing inside divide into two-layer about through baffle 26, motor element is installed on the upper strata, converter 15 is installed to the lower floor, the inner wall of motor housing lower part on be provided with mounting panel 14, converter 15 assemble on mounting panel 14. Water cooled machine 17 is integrated as an organic whole with converter 15, and converter 15 drive water cooled machine 17 operation, and the heat that converter 15's IGBT produced passes through mounting panel 14 and transmits the inner wall to water cooled machine 17, and the heat is walked through the water in urceolus 2 and the water cooled machine 17 constitution cavity, and for traditional air-cooled mode, the cooling effect is better, and converter 15 life-span is longer.
The outer side of the outer cylinder 2 is provided with a controller 21 and a touch screen 22 connected with the controller 21, and the frequency converter 15 is connected with the controller 21 through a lead 16. The touch panel 22 is connected to the outer tub 2 by bolts 19. The controller 21 is integrated with the touch screen 22.
A seal ring 20 is installed between the touch screen 22 and the outer cylinder 2. And a mechanical seal 18 sleeved on an output shaft of the water-cooled motor 17 is arranged in the inner cavity 25.
The driving shaft 12 is sleeved with a shaft sleeve 4, and the shaft sleeve 4 is used for isolating the driving shaft 12 from the first stage flow guide body 5 and the last stage flow guide body 11. The upper end of the driving shaft 12 is screwed with a spindle nose nut 13, and the spindle nose nut 13 is used for limiting the shaft sleeve 4.
The working principle of the embodiment is as follows: an operator sets the operating parameters of the high-efficiency multi-stage pump through the touch screen 22, the controller 21 sends a control signal to the frequency converter 15 according to the set parameters, and the frequency converter 15 drives the water-cooling motor 17 to operate according to the given rotating speed according to the given parameters. The motor and the hydraulic component are designed coaxially, so that the rotating speed of the first impeller 6 and the rotating speed of the second impeller 7 are the same as that of the water-cooling motor 17, the water-cooling motor 17 converts electric energy into kinetic energy, and the kinetic energy is transmitted to the first impeller 6 and the second impeller 7 through the driving shaft 12. Water enters a cavity formed by the outer barrel 2 and the water-cooled motor 17 through a water inlet channel 23 arranged on the water inlet flange 1, water in the cavity enters an inlet of the first impeller 6 along the first-stage flow guide body 5 through a water flow channel 24 arranged on the support 3, the first impeller 6 transmits kinetic energy to water, a flow channel of the cylindrical flow guide body 8 is in a diffusion shape, the speed of the water in the cylindrical flow guide body 8 is reduced, the kinetic energy is reduced, the potential energy is increased, the water with the kinetic energy and the potential energy enters an inlet of the second impeller 7 through the cylindrical flow guide body 8 to further increase the kinetic energy and the potential energy, and high-pressure water is pumped to a water pipeline through the water outlet flange 9 after being pressurized through the last-stage flow guide body 11.
The water-cooled motor 17 is a high-speed permanent magnet motor, main heat comes from a motor stator, heat generated by the motor stator is transferred to the inner wall of the motor, the heat is taken away through water in a cavity formed by the outer barrel 2 and the water-cooled motor 17, the water exchange heat efficiency is high, the temperature is stable, and the service lives of the motor and the frequency converter are greatly prolonged. Compared with the traditional air cooling mode, the structure such as a cooling fin is omitted, raw materials are saved, and the product competitiveness is improved. The rotating speed of the water-cooled motor 17 is greater than 5000 revolutions per minute, the same power is achieved, the volume of the motor is inversely related to the rotating speed of the motor, and therefore the volume of the high-speed motor with the same power is small compared with that of a traditional power frequency motor, product materials are saved, and product competitiveness is improved. The protection level of the water-cooled motor 17 reaches IP 68.
Claims (10)
1. The utility model provides a high-efficient multistage pump of water-cooling which characterized in that: including into water flange (1), urceolus (2) and play water flange (9), urceolus (2) be cavity tubular structure, go out water flange (9) and intake flange (1) are installed respectively to the upper and lower both ends of this urceolus (2), intake flange (1) on be provided with inhalant canal (23), urceolus (2) in be located and install support (3) between intaking flange (1) and play water flange (9), this support (3) have an inner chamber (25), inner chamber (25) lower part be provided with rivers passageway (24), a section of thick bamboo form baffle (8) is installed to this inner chamber (25) upper end opening part, the upper and lower port of tube-shape baffle (8) seal through last stage baffle (11) and first stage baffle (5) respectively, support (3) lower extreme install water-cooled machine (17), the upper end of this water-cooled machine (17) output shaft passes support (3) and is connected with drive shaft (12), the upper part of the driving shaft (12) is sequentially provided with a first impeller (6) and a second impeller (7) from bottom to top, and the first impeller (6) and the second impeller (7) are positioned between the first-stage flow guide body (5) and the last-stage flow guide body (11).
2. The water-cooled high-efficiency multistage pump according to claim 1, characterized in that: and a sealing gasket (10) is arranged between the upper port of the water outlet flange (9) and the upper port of the cylindrical flow guide body (8).
3. The water-cooled high-efficiency multistage pump according to claim 1, characterized in that: the first impeller (6) and the second impeller (7) are both provided with spline protrusions, and the driving shaft (12) is provided with spline structures corresponding to the spline protrusions.
4. The water-cooled high-efficiency multistage pump according to claim 1, characterized in that: the water-cooled motor (17) is a high-speed permanent magnet motor.
5. The water-cooled high-efficiency multistage pump according to claim 1, characterized in that: water cooled machine (17) include motor housing and motor element, motor housing inside two-layer about falling into through baffle (26), motor element is installed on the upper strata, converter (15) are installed to the lower floor.
6. The water-cooled high efficiency multistage pump according to claim 5, characterized in that: the inner wall of the lower part of the motor shell is provided with a mounting plate (14), and the frequency converter (15) is assembled on the mounting plate (14).
7. The water-cooled high efficiency multistage pump according to claim 5, characterized in that: the outer side of the outer barrel (2) is provided with a controller (21) and a touch screen (22) connected with the controller (21), and the frequency converter (15) is connected with the controller (21) through a lead (16).
8. The water-cooled high efficiency multistage pump according to claim 7, characterized in that: the controller (21) is integrated with the touch screen (22).
9. The water-cooled high-efficiency multistage pump according to claim 1, characterized in that: and a mechanical seal (18) sleeved on an output shaft of the water-cooled motor (17) is arranged in the inner cavity (25).
10. The water-cooled high-efficiency multistage pump according to claim 1, characterized in that: the driving shaft (12) is sleeved with a shaft sleeve (4), and the shaft sleeve (4) is used for isolating the driving shaft (12) from the first-stage flow guide body (5) and the last-stage flow guide body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556221.7A CN113107863A (en) | 2021-05-21 | 2021-05-21 | Water-cooling efficient multistage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556221.7A CN113107863A (en) | 2021-05-21 | 2021-05-21 | Water-cooling efficient multistage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113107863A true CN113107863A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110556221.7A Pending CN113107863A (en) | 2021-05-21 | 2021-05-21 | Water-cooling efficient multistage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113107863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023079839A1 (en) * | 2021-11-04 | 2023-05-11 | 株式会社豊田自動織機 | Electric fluid machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001017095A1 (en) * | 1999-08-31 | 2001-03-08 | Ebara Corporation | Motor frame and motor using the motor frame and motor pump |
| CN101846085A (en) * | 2010-06-08 | 2010-09-29 | 江苏大学 | Frequency conversion high-speed wet type submersible pump |
| CN204267277U (en) * | 2014-12-01 | 2015-04-15 | 李龙 | Integral type water-cooled intelligent frequency-conversion water pump |
| CN204783722U (en) * | 2015-07-28 | 2015-11-18 | 山东圣凯节能投资有限公司 | Energy -conserving water pump of water -cooling |
| CN205533263U (en) * | 2016-01-21 | 2016-08-31 | 张艾华 | A high-efficiency multifunctional water 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 |
| CN110410368A (en) * | 2019-08-26 | 2019-11-05 | 上海上涵自动化科技有限公司 | High-pressure hydraulic pump |
-
2021
- 2021-05-21 CN CN202110556221.7A patent/CN113107863A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001017095A1 (en) * | 1999-08-31 | 2001-03-08 | Ebara Corporation | Motor frame and motor using the motor frame and motor pump |
| CN101846085A (en) * | 2010-06-08 | 2010-09-29 | 江苏大学 | Frequency conversion high-speed wet type submersible pump |
| CN204267277U (en) * | 2014-12-01 | 2015-04-15 | 李龙 | Integral type water-cooled intelligent frequency-conversion water pump |
| CN204783722U (en) * | 2015-07-28 | 2015-11-18 | 山东圣凯节能投资有限公司 | Energy -conserving water pump of water -cooling |
| CN205533263U (en) * | 2016-01-21 | 2016-08-31 | 张艾华 | A high-efficiency multifunctional water 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 |
| CN110410368A (en) * | 2019-08-26 | 2019-11-05 | 上海上涵自动化科技有限公司 | High-pressure hydraulic pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023079839A1 (en) * | 2021-11-04 | 2023-05-11 | 株式会社豊田自動織機 | Electric fluid machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20210713 |