CN217206915U - Vertical shaft water-cooling double-suction pump - Google Patents
Vertical shaft water-cooling double-suction pump Download PDFInfo
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- CN217206915U CN217206915U CN202220787149.9U CN202220787149U CN217206915U CN 217206915 U CN217206915 U CN 217206915U CN 202220787149 U CN202220787149 U CN 202220787149U CN 217206915 U CN217206915 U CN 217206915U
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- water
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- suction pump
- transmission shaft
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- 238000001816 cooling Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a vertical axle water-cooling double entry pump, be equipped with the through-hole in the used transmission shaft of double entry pump, the return water part is installed to the one end of through-hole, the through-hole pass through apopore one with the low-pressure region links to each other. The water inlet is connected with the high-pressure area through a water return channel arranged in the wall of the double-suction pump body, and externally input water flows through the low-pressure area, the impeller, the high-pressure area, the water return channel, the water inlet, the water return pipe, the through hole and the water outlet I in sequence and finally flows back to the low-pressure area through the water outlet. The utility model discloses ingenious high, the low-pressure area that has utilized in the pump chamber, through the inside access connection of spare part, with the pump body inside part liquid carry the motor inside, flow out the low-pressure area again at last, the continuous cycle takes away the partial heat that produces when the motor operation, the effectual motor temperature rise that has reduced has improved whole unit efficiency, has prolonged the motor life-span, and reliable and stable, and simple structure, economical and practical.
Description
Technical Field
The utility model belongs to a water pump technical field especially relates to a vertical axle water-cooling double entry pump.
Background
The double-suction pump is a centrifugal pump introduced from abroad, has been developed and evolved in China for decades, and is common in large-scale water supply, drainage and irrigation projects due to the characteristics of high lift, large flow and the like. The conventional vertical double-suction pump comprises a motor part, a motor frame and a double-suction pump body which are sequentially connected, wherein a transmission shaft is arranged in the middle of the motor part, an impeller is coaxially fixed on the transmission shaft, the impeller is arranged in the center of the double-suction pump body, when the double-suction pump is started, the motor part drives the impeller to rotate at a high speed together, liquid filled among blades in advance is forced to rotate, and the liquid moves radially from the center to the periphery of the impeller under the action of inertial centrifugal force. Meanwhile, new liquid is continuously input into the water inlet, the liquid obtains energy in the moving process of flowing through the impeller, the static pressure energy is increased, and the flow rate is increased. When the liquid leaves the impeller and enters the pump body, the speed is reduced due to the gradual expansion of the flow channel in the pump body, part of kinetic energy is converted into static pressure energy, and finally the static pressure energy flows out from the water outlet along the tangential direction. Therefore, when liquid is thrown from the center of the impeller to the periphery, the center of the impeller forms a low-pressure area, and the periphery forms a high-pressure area.
As is well known, most water pumps pump water by rotating an impeller driven by a motor, and electric energy is converted into mechanical energy and thermal energy during operation of the motor. At present, the motor cooling mode of the conventional double-suction pump is mostly air cooling, and the air flows on the surface of the motor and takes away heat by means of rotation of a fan at one end of the motor. However, the high ambient temperature in summer results in poor air cooling heat dissipation efficiency. The poor heat dissipation efficiency leads to the accumulation of heat, which further influences the cooling efficiency of the motor; secondly, the service life of the motor is influenced, more economic expenditure is generated for users, and the policy implementation of national energy conservation and emission reduction advices is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a vertical axle water-cooling double entry pump is provided, the running temperature of control double entry pump.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a vertical axle water-cooling double entry pump, including consecutive motor element, motor frame and the double entry pump body, motor element's middle part is equipped with the transmission shaft, coaxial being fixed with the impeller on the transmission shaft, the impeller is located double entry pump body central authorities, when the impeller operation the impeller center forms low-pressure area, peripheral direction and forms high-pressure area. The internal through-hole that is equipped with of transmission shaft, the through-hole is located end cap screw seal is passed through to one end in the motor part, and the return water part is installed to the other end, the through-hole pass through apopore one with the low-pressure area links to each other, the return water part including be used for with transmission shaft fixed connection's fixed knot construct and hollow wet return, the assembly back the inlet opening of wet return is located outside the transmission shaft, the apopore of wet return gos deep into in the transmission shaft, the external diameter of wet return is less than the internal diameter of through-hole, the inlet opening through locating return water passageway in the double entry pump body wall with the high-pressure area links to each other, and the rivers of outside input flow through in proper order low-pressure area, impeller, high-pressure district, return water passageway, inlet opening, wet return water pipe, through-hole, apopore one, finally by apopore one-class low-pressure area.
Furthermore, the water return channel comprises a first channel which starts to downwards penetrate through the wall of the double-suction pump body from a high-pressure area close to the water outlet of the double-suction pump body, and a second channel which is connected with the first channel and transversely penetrates through the wall of the double-suction pump body, and the second channel is connected with the water inlet hole.
Furthermore, shaft sleeves are sleeved outside the transmission shaft and below the impeller, and guide bearings are sleeved outside the shaft sleeves.
Furthermore, a second water outlet hole is formed in the position, connected with the first water outlet hole, on the shaft sleeve, and a round hole is formed in the position, connected with the water return channel, on the guide bearing.
Furthermore, a pressing plate is arranged below the shaft sleeve, and a water inlet of the water return component is located below the pressing plate.
Further, the transmission shaft and the double-suction pump body are sealed through a machine seal.
Advantageous effects
The utility model discloses a set up return water channel in the transmission shaft of deepening the motor, utilize high, the low-pressure zone of pump intracavity to make the circulating water pass through return water channel business turn over motor drive shaft and take away the heat that the motor produced in the operation, reach the effect to the motor water-cooling from inside, effectively reduced the motor temperature rise. Compared with the conventional air cooling technology, the air cooling device has the advantages that the temperature of flowing water is lower, the air cooling device is not easily influenced by the ambient temperature, the temperature can be effectively reduced in summer, the water pumping efficiency of the whole unit can be improved, the service life of a motor can be prolonged, and the air cooling device is stable, reliable, simple in structure, economical and practical.
Drawings
Fig. 1 is a sectional view of a vertical shaft water-cooled double suction pump.
Fig. 2 is a sectional view of the propeller shaft of fig. 1.
FIG. 3 is an enlarged view of the water return component of FIG. 1.
Fig. 4 is an enlarged cross-sectional view of the bushing of fig. 1.
Fig. 5 is an enlarged cross-sectional view of the guide bearing of fig. 1.
Wherein, 1-a double suction pump body; 2-a motor frame; 3-a motor component; 4-a transmission shaft; 41-water outlet I; 42-a through hole; 5-machine sealing; 6-impeller; 7-water outlet; 8-shaft sleeve; 81-keyway; 82-water outlet II; 9-channel two; 10; a first channel; 11-a platen; 12-a water return component; 121-water inlet hole; 122-a fixed structure; 123-a water return pipe; 13-bearing gland; 14-a guide bearing; 141-counterbores; 142-a circular hole; 15-a water inlet; 16 plug screws.
Like reference symbols in the various drawings indicate like elements.
Detailed Description
The present invention will be further described 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. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
As shown in fig. 1, the utility model provides a vertical shaft water-cooling double suction pump. As shown in fig. 2, a through hole 42 is formed in the transmission shaft 4 installed in the motor part 3, one end of the through hole 42 located in the motor part 3 is sealed by a plug screw 16, and the other end is provided with a water return part 12. The through hole 42 is connected with a low pressure area in the double suction pump body 1 through the water outlet hole one 41.
As shown in fig. 3, the water returning part 12 includes a fixing structure 122 fixedly connected to the transmission shaft 4 and a hollow water returning pipe 123. After assembly, the water inlet 121 of the water return pipe 123 is located outside the transmission shaft 4, and the water inlet 121 is connected with the high-pressure area through a water return channel arranged in the wall of the double-suction pump body 1. The water outlet of the water return pipe 123 extends into the transmission shaft 4, and the outer diameter of the water return pipe 123 is smaller than the inner diameter of the through hole 42, so that water can flow downwards to the water outlet 41 and flow out from the periphery under the action of water pressure and gravity after being ejected from the water outlet of the water return pipe 123.
The externally input water flow sequentially flows through the low-pressure area, the impeller 6, the high-pressure area, the water return channel, the water inlet hole 121, the water return pipe 123, the through hole 42 and the water outlet hole I41, finally flows back to the low-pressure area through the water outlet hole I41, enters a circulation again, and continuously cools the motor part 3 through the transmission shaft 4.
In a specific embodiment, as shown in fig. 1, the water return channel includes a first channel 10 that passes through the wall of the double suction pump body 1 from a high pressure region near the water outlet 7 of the double suction pump body 1, and further includes a second channel 9 that is connected to the first channel 10 and transversely passes through the wall of the double suction pump body 1, and the second channel 9 is connected to the water inlet 121.
In a specific embodiment, as shown in fig. 1 and 2, a shaft sleeve 8 is sleeved outside the transmission shaft 4 and below the impeller 6, and a guide bearing 14 is sleeved outside the shaft sleeve 8.
Further, a pressure plate 11 is arranged below the shaft sleeve 8, and the pressure plate 11 is used for preventing the shaft sleeve 8 from loosening in the axial direction. The water inlet 121 of the water return component 12 is located below the pressure plate 11, and a water inlet space is formed below the pressure plate 11. As shown in fig. 5, a counter bore 141 and a circular hole 142 are formed at a position on the guide bearing 14 connected to the water return channel. The second channel 9 can be abutted with the counter bore 141 and penetrate through the round hole 142 to input water flow into the water inlet space and be pressed into the water inlet hole 121 by water pressure. A second water outlet hole 82 is formed in the position, connected with the first water outlet hole 41, of the shaft sleeve 8, and water in the transmission shaft 4 flows out through the first water outlet hole 41 and the second water outlet hole 82 and flows back to a low-pressure area near the center of the impeller 6.
Further, as shown in fig. 4, the sleeve 8 is provided with a key slot 81, and is matched with the transmission shaft 4 through key connection to prevent slipping.
Further, a bearing gland 13 is arranged below the guide bearing 14 for preventing the guide bearing 14 from loosening in the axial direction.
Further, the transmission shaft 4 and the double-suction pump body 1 are sealed through a mechanical seal 5, so that liquid in the pump body cannot leak.
The utility model discloses a set up the return water part, ingenious high, the low-pressure region that has utilized the pump intracavity, through the inside access connection of spare part, with the pump body internal part liquid carry the motor inside, flow out the low-pressure region again at last, the continuous circulation takes away the partial heat that produces when the motor operation, the effectual motor temperature rise that has reduced has improved whole unit efficiency, has prolonged the motor life-span, and reliable and stable, and simple structure, economical and practical.
Claims (6)
1. The utility model provides a vertical axle water-cooling double entry pump, includes consecutive motor part (3), motor frame (2) and double entry pump body (1), the middle part of motor part (3) is equipped with transmission shaft (4), coaxial fixed with impeller (6) on transmission shaft (4), impeller (6) are located double entry pump body (1) central authorities, when impeller (6) operate impeller (6) center forms low-pressure area, periphery direction and forms high-pressure area, its characterized in that,
a through hole (42) is arranged in the transmission shaft (4), one end of the through hole (42) positioned in the motor part (3) is sealed through a plug screw (16), the other end of the through hole is provided with a water return part (12), the through hole (42) is connected with the low-pressure area through a water outlet I (41),
the water return part (12) comprises a fixed structure (122) fixedly connected with the transmission shaft (4) and a hollow water return pipe (123), after assembly, a water inlet hole (121) of the water return pipe (123) is positioned outside the transmission shaft (4), a water outlet hole of the water return pipe (123) extends into the transmission shaft (4), the outer diameter of the water return pipe (123) is smaller than the inner diameter of the through hole (42),
the water inlet hole (121) is connected with the high-pressure area through a water return channel arranged in the wall of the double-suction pump body (1), and externally input water flows through the low-pressure area, the impeller (6), the high-pressure area, the water return channel, the water inlet hole (121), the water return pipe (123), the through hole (42) and the water outlet hole I (41) in sequence and finally flows back to the low-pressure area through the water outlet hole I (41).
2. The vertical shaft water-cooling double suction pump as claimed in claim 1, wherein the water return channel comprises a first channel (10) which starts from a high-pressure area close to the water outlet (7) of the double suction pump body (1) and passes through the wall of the double suction pump body (1) downwards, and further comprises a second channel (9) which is connected with the first channel (10) and transversely passes through the wall of the double suction pump body (1), and the second channel (9) is connected with the water inlet (121).
3. The vertical shaft water-cooling double suction pump as claimed in claim 1, wherein a shaft sleeve (8) is sleeved outside the transmission shaft (4) and below the impeller (6), and a guide bearing (14) is sleeved outside the shaft sleeve (8).
4. The vertical shaft water-cooling double suction pump as claimed in claim 3, wherein a second water outlet (82) is formed in the position, connected with the first water outlet (41), of the shaft sleeve (8), and a circular hole (142) is formed in the position, connected with the water return channel, of the guide bearing (14).
5. The vertical shaft water-cooling double suction pump as claimed in claim 3, wherein a pressure plate (11) is arranged below the shaft sleeve (8), and the water inlet hole (121) of the water return part (12) is arranged below the pressure plate (11).
6. The vertical shaft water-cooling double suction pump according to claim 1, characterized in that the transmission shaft (4) and the double suction pump body (1) are sealed by a mechanical seal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220787149.9U CN217206915U (en) | 2022-04-07 | 2022-04-07 | Vertical shaft water-cooling double-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220787149.9U CN217206915U (en) | 2022-04-07 | 2022-04-07 | Vertical shaft water-cooling double-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217206915U true CN217206915U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220787149.9U Active CN217206915U (en) | 2022-04-07 | 2022-04-07 | Vertical shaft water-cooling double-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217206915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467857A (en) * | 2022-09-16 | 2022-12-13 | 上海熊猫机械(集团)有限公司 | A bearing cooling and bearing intelligent maintenance system for double-suction pumps |
-
2022
- 2022-04-07 CN CN202220787149.9U patent/CN217206915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467857A (en) * | 2022-09-16 | 2022-12-13 | 上海熊猫机械(集团)有限公司 | A bearing cooling and bearing intelligent maintenance system for double-suction pumps |
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