CN219432068U - Full through-flow submersible electric pump with sand prevention and winding prevention functions - Google Patents
Full through-flow submersible electric pump with sand prevention and winding prevention functions Download PDFInfo
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- CN219432068U CN219432068U CN202320718056.5U CN202320718056U CN219432068U CN 219432068 U CN219432068 U CN 219432068U CN 202320718056 U CN202320718056 U CN 202320718056U CN 219432068 U CN219432068 U CN 219432068U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model discloses a full-through-flow submersible pump with sand prevention and winding prevention functions, which comprises a pump body, wherein the pump body comprises a transmission cavity, a hydraulic cavity and a motor cavity, wherein the hydraulic cavity is positioned outside the transmission cavity and is annular; the motor cavity is communicated with the hydraulic cavity; the hydraulic cavity is communicated with the transmission cavity; the pump body comprises a water inlet horn, a stator winding, a shell, a rotor and a guide vane body; casing one end and water inlet loudspeaker fixed connection, the other end and stator body fixed connection, stator winding and casing internal surface fixed connection are through guaranteeing that municipal administration comes water pressure to be greater than the fluid pressure that full tubular pump produced to prevent sand grain and the tiny fiber in the fluid to enter into the motor intracavity through sealed, guarantee motor operation safety and life-span, make full tubular pump long-term steady operation.
Description
Technical Field
The utility model relates to the technical field of submersible pumps, in particular to a full-through-flow submersible pump with sand prevention and winding prevention functions.
Background
The full-through-flow submerged electric pump is mainly used for low-lift large-flow water intake engineering combining electromechanical drainage, flood control and drainage or drainage and irrigation. The impeller is arranged in the inner cavity of the rotor of the motor, forms a whole with the rotor, and water flows through the inner cavity of the rotor during operation, so that the impeller has the characteristics of good hydraulic performance, smooth flow passage and small axial size. But at the same time the full flow pump has the following disadvantages:
the water body contains certain sand grains and fiber matters, particularly a large amount of granular solid matters are contained in the water body in places such as a rainwater pump station for municipal drainage, sewage treatment and the like, some sand grains and tiny hairs inevitably enter into a cavity formed by the water inlet loudspeaker, the shell, the guide vane body and the rotor, and the sand grains and the tiny fibers enter into a gap between the stator and the rotor, so that on one hand, the outer surfaces of the inner ring of the stator and the rotor are worn, and the motor efficiency is reduced; on the other hand, sand grains and fibers in the gap also reduce the efficiency of the motor. Meanwhile, fibers can be wound on windings at two ends of the stator, so that heat dissipation and performance of the motor are affected, and safe operation and efficiency of the pump are seriously affected.
Disclosure of Invention
Technical problems: the technical problems to be solved by the utility model are as follows: the full-through-flow submersible electric pump with the sand prevention and winding prevention functions is provided, sand grains and tiny fibers are effectively prevented from entering a cavity where a stator winding coil is located, sand grains and fibers are prevented from entering a gap between a stator and a rotor, the fibers are prevented from winding the coil, abrasion and winding of a stator winding are prevented, and the efficiency of the motor is guaranteed.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the embodiment of the utility model is as follows:
the full-through-flow submersible electric pump with sand prevention and winding prevention functions comprises a pump body, wherein the pump body comprises a transmission cavity, a hydraulic cavity and a motor cavity, the hydraulic cavity is positioned outside the transmission cavity and is annular, and the motor cavity is positioned outside the hydraulic cavity and is annular; the motor cavity is communicated with the hydraulic cavity; the hydraulic cavity is communicated with the transmission cavity; the pump body comprises a water inlet horn, a stator winding, a shell, a rotor and a guide vane body; one end of the shell is fixedly connected with the water inlet loudspeaker, the other end of the shell is fixedly connected with the guide vane body, and the stator winding is fixedly connected with the inner surface of the shell; the rotor is arranged on the inner side of the stator winding, one end of the rotor is in clearance fit with the water inlet horn, and the other end of the rotor is in clearance fit with the guide vane body; the upper end of the shell is provided with a first water inlet pipe and a second water inlet pipe; the motor cavity is formed among the water inlet loudspeaker, the shell and the guide vane body, and the stator winding and the rotor are positioned in the motor cavity.
As a preferred example, the first water inlet pipe and the second water inlet pipe are respectively arranged at two ends of the stator winding.
As a preferable example, the first water inlet pipe and the second water inlet pipe are respectively provided with a valve and a pressure gauge.
As a preferred example, the first water inlet pipe and the second water inlet pipe are respectively communicated with municipal water pipes.
In a preferred embodiment, the pressure of the motor cavity is greater than that of the hydraulic cavity in operation.
As a preferable example, one end of the rotor is in clearance fit with the water inlet horn to form a first labyrinth seal; the other end of the rotor is in clearance fit with the guide vane body to form a second labyrinth seal.
As a preferred example, the motor chamber is in communication with the hydraulic chamber via a first labyrinth seal and a second labyrinth seal.
As a preferable example, the all-through-flow submersible pump with sand prevention and anti-winding functions further comprises an impeller, wherein one end of the impeller is connected with a transmission shaft in a transmission cavity; the other end is connected with the inner ring of the rotor.
As a preferred example, the impeller comprises a hub and blades; the hub is connected with a transmission shaft in the transmission cavity; the blades are fixedly connected with the inner ring of the rotor.
Preferably, the vane passes through the hydraulic chamber.
The beneficial effects are that: compared with the prior art, the technical scheme of the utility model has the following beneficial effects: compared with the prior art, the technical scheme of the utility model has the advantages that the water inlet pipe is arranged on the motor cavity and is connected with the municipal water supply, and the municipal water supply pressure is ensured to be higher than the fluid pressure generated by the full-through-flow pump, so that sand grains and fine fibers in the fluid are prevented from entering the motor cavity through sealing, the sand grains and the fibers are prevented from entering the gap between the stator and the rotor and winding on the coil of the stator winding, the operation safety and the operation life of the motor are ensured, the operation efficiency of the motor is effectively stabilized, and the full-through-flow pump is further enabled to stably operate for a long time.
Drawings
Fig. 1 is a block diagram of an embodiment of the present utility model.
The drawings are as follows: the water inlet horn 1, the first labyrinth seal 2, the first water inlet pipe 3, the valve 4, the pressure gauge 5, the stator winding 6, the casing 7, the impeller 8, the rotor 9, the second labyrinth seal 10, the second water inlet pipe 11, the guide vane body 12, the motor cavity 13, the hydraulic cavity 14, the transmission cavity 15 and the blade 81.
Detailed Description
The technical scheme of the utility model is described in detail below with reference to the accompanying drawings.
As shown in FIG. 1, the full-through-flow submersible pump with sand prevention and anti-winding functions comprises a pump body, wherein the pump body comprises a transmission cavity 15, a hydraulic cavity 14 which is positioned outside the transmission cavity 15 and takes the shape of a ring, and a motor cavity 13 which is positioned outside the hydraulic cavity 14 and takes the shape of a ring; the motor cavity 13 is communicated with the hydraulic cavity 14; the hydraulic cavity 14 is communicated with the transmission cavity 15; the pump body comprises a water inlet horn 1, a stator winding 6, a shell 7, a rotor 9 and a guide vane body 12; one end of the shell 7 is fixedly connected with the water inlet loudspeaker 1, the other end of the shell is fixedly connected with the guide vane body 12, and the stator winding 6 is fixedly connected with the inner surface of the shell 7; the rotor 9 is arranged on the inner side of the stator winding 6, one end of the rotor 9 is in clearance fit with the water inlet horn 1, and the other end of the rotor 9 is in clearance fit with the guide vane body 12; the upper end of the shell 7 is provided with a first water inlet pipe 3 and a second water inlet pipe 11; the motor cavity 13 is formed among the water inlet horn 1, the shell 7 and the guide vane body 12, and the stator winding 6 and the rotor 9 are positioned in the motor cavity 13.
In the full-through-flow submersible pump with sand prevention and winding prevention functions, through arranging the first water inlet pipe 3 and the second water inlet pipe 11 on the casing 7, and the first water inlet pipe 3 and the second water inlet pipe 11 are connected with municipal water, municipal water can be introduced into the motor cavity 13 when the submersible pump is in operation, meanwhile, the valve 4 and the pressure gauge 5 are arranged on the first water inlet pipe 3 and the second water inlet pipe 11, the municipal water pressure in the motor cavity 13 is ensured to be greater than the fluid pressure generated by the full-through-flow pump through the regulating valve 4, sand grains and fine fibers in the fluid are prevented from entering the motor cavity through sealing, sand grains and fibers are prevented from entering gaps of a stator and a rotor and winding on a coil of a stator winding, abrasion to the inner ring or the outer ring of the rotor is prevented, the efficiency of the motor is effectively stabilized, and the full-through-flow pump is enabled to stably operate.
When the full-through-flow submersible electric pump works, the valves 4 on the first water inlet pipe 3 and the second water inlet pipe 11 are opened, municipal incoming water enters the motor cavity 13 through the first water inlet pipe 3 and the second water inlet pipe 11, then the electric pump is started, and the submersible motor drives the impeller 8 to rotate at a high speed, so that fluid with certain flow and lift is generated. According to the pressure gauge 5 and the fluid pressure generated by the full-flow pump, the valve 4 is adjusted to make the pressure of tap water slightly larger than the fluid pressure of the full-flow pump. At this time, the pressure of tap water in the motor cavity 13 is greater than the pressure of the hydraulic cavity 14, tap water in the motor cavity prevents fluid in the hydraulic cavity 14 from entering the motor cavity, and the fluid directly flows from the hydraulic cavity 14 to the guide vane body 12 from the water inlet horn 1. Since the pressure of the motor cavity 13 is greater than the pressure of the hydraulic cavity 14, sewage is prevented from entering the motor cavity, and fine sand grains and fine fibers are prevented from entering the motor cavity through the labyrinth seal, so that sand grains and fine fibers in fluid are prevented from entering the motor cavity through the labyrinth seal. Not only avoiding sand grains and fibers from entering into the gap between the rotor and the stator to cause abrasion to the inner ring or the outer ring of the stator, but also avoiding fibers from being wound on the coils of the stator windings, thereby ensuring the service efficiency and service life of the motor and further ensuring the stable operation of the full-through-flow pump.
As a preferred example, the first water inlet pipe 3 and the second water inlet pipe 11 are respectively arranged at both ends of the stator winding 6. The water quantity and the pressure in the motor cavity 13 can be effectively controlled by arranging the two water inlet pipes, the two water inlet pipes are arranged at two ends, and when the two water inlet pipes are simultaneously opened, the pressure at two ends of the motor cavity 13 can be ensured.
As a preferred example, the first water inlet pipe 3 and the second water inlet pipe 11 are respectively provided with a valve 4 and a pressure gauge 5. When the submersible electric pump is used, the valve 4 is opened, the valve 4 is closed when the submersible electric pump is not used, municipal water waste is avoided, the pressure gauge 5 is arranged to monitor the water pressure in the motor cavity 13 in real time, when the water pressure in the motor cavity 13 is found to be smaller, the opening size of the valve 4 is adjusted, the water pressure in the motor cavity 13 is ensured to be slightly larger than the water pressure in the hydraulic cavity 14 all the time, further, the fact that impurities in water cannot enter the motor cavity 13 is ensured, and the running efficiency and safety of the motor cavity 13 are ensured.
As a preferred example, the first inlet pipe 3 and the second inlet pipe 11 are respectively communicated with municipal water pipes. Municipal incoming water enters the motor cavity 13 through the first water inlet pipe 3 and the second water inlet pipe 11, and as tap water is clean clear water, sand grains and fiber substances are not contained, so that guarantee is provided for safe operation of the motor.
In operation, the pressure in the motor chamber 13 is preferably greater than the pressure in the hydraulic chamber 14. When the impeller 8 rotates to do work, the hydraulic cavity 14 generates pressure, so that impurities in water flow out forwards, when the pressure in the motor cavity 13 is greater than the pressure in the hydraulic cavity 14, the impurities in water cannot enter the motor cavity 13, fine particles and fiber impurities cannot appear in the motor cavity 13, and further the running stability and safety of the motor cavity 13 are guaranteed.
As a preferable example, one end of the rotor 9 is in clearance fit with the water inlet horn 1 to form a first labyrinth seal 2; the other end of the rotor 9 is in clearance fit with the guide vane body 12 to form a second labyrinth seal 10. The first labyrinth seal 2 and the second labyrinth seal 10 can be matched with water pressure in the motor cavity 13, so that impurities in the hydraulic cavity 14 can not enter the motor cavity 13, and the operation safety of the motor cavity 13 is further ensured.
As a preferred example, the motor chamber 13 communicates with the hydraulic chamber 14 through the first labyrinth seal 2 and the second labyrinth seal 10. The whole device has complete and reliable structure, meanwhile, the first labyrinth seal 2 and the second labyrinth seal 10 play a certain role in preventing sundries in the hydraulic cavity 14, and the sundries are filtered to be larger, so that the larger sundries cannot enter the motor cavity 13, and the operation safety of the motor cavity 13 is ensured by matching with municipal water accessed in the motor cavity 13.
As a preferred example, the all-through-flow submersible pump with sand prevention and anti-winding functions further comprises an impeller 8, wherein one end of the impeller 8 is connected with a transmission shaft in a transmission cavity 15; the other end is connected with the inner ring of the rotor 9. The submersible motor drives the impeller 8 to rotate at a high speed, and fluid with certain flow and lift is generated to enable water to flow from the water inlet loudspeaker 1 end to the blade body 12 end.
As a preferred example, the impeller 8 comprises a hub and blades 81; the hub is connected with a transmission shaft in the transmission cavity 15; the blades 81 are fixedly connected with the inner ring of the rotor 9. The drive shaft in the drive chamber 15 rotates the blades 81, and the blades 81 rotate in synchronization with the inner ring of the rotor 9 to generate fluid, so that water is caused to flow from the water inlet horn 1 end to the blade body 12 end.
Preferably, the vane 81 passes through the hydraulic chamber 14. The fluid in the hydraulic chamber 14 flows directly from the water inlet horn end of the hydraulic chamber 14 to the vane body end due to the work of the vane 81. Because the pressure of the motor cavity 13 is greater than that of the hydraulic cavity 14, water flow generated by acting of the blades 81 cannot enter the motor cavity 13, so that the operation efficiency and operation safety of the motor cavity 13 are ensured, and the full-through-flow pump can stably operate for a long time.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the specific embodiments described above, and that the above specific embodiments and descriptions are provided for further illustration of the principles of the present utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the claims and their equivalents.
Claims (10)
1. The full-through-flow submersible electric pump with sand prevention and winding prevention functions comprises a pump body and is characterized by comprising a transmission cavity (15), a hydraulic cavity (14) which is positioned outside the transmission cavity (15) and is annular, and a motor cavity (13) which is positioned outside the hydraulic cavity (14) and is annular; the motor cavity (13) is communicated with the hydraulic cavity (14); the hydraulic cavity (14) is communicated with the transmission cavity (15); the pump body comprises a water inlet horn (1), a stator winding (6), a shell (7), a rotor (9) and a guide vane body (12); one end of the shell (7) is fixedly connected with the water inlet loudspeaker (1), the other end of the shell is fixedly connected with the guide vane body (12), and the stator winding (6) is fixedly connected with the inner surface of the shell (7); the rotor (9) is arranged on the inner side of the stator winding (6), one end of the rotor (9) is in clearance fit with the water inlet horn (1), and the other end of the rotor is in clearance fit with the guide vane body (12); the upper end of the shell (7) is provided with a first water inlet pipe (3) and a second water inlet pipe (11); the motor cavity (13) is formed among the water inlet loudspeaker (1), the shell (7) and the guide vane body (12), and the stator winding (6) and the rotor (9) are positioned in the motor cavity (13).
2. The all-through-flow submersible pump with sand prevention and anti-winding functions according to claim 1, wherein the first water inlet pipe (3) and the second water inlet pipe (11) are respectively arranged at two ends of the stator winding (6).
3. The all-through-flow submersible pump with sand prevention and anti-winding functions according to claim 1, wherein the first water inlet pipe (3) and the second water inlet pipe (11) are respectively provided with a valve (4) and a pressure gauge (5).
4. An all-through-flow submersible electric pump with sand control and anti-windup functions according to claim 1, characterized in that the first water inlet pipe (3) and the second water inlet pipe (11) are respectively in communication with municipal water pipes.
5. An all-through-flow submersible electric pump with sand control and anti-windup functions according to claim 1, characterized in that, in operation, the pressure in the motor chamber (13) is greater than the pressure in the hydraulic chamber (14).
6. The all-through-flow submersible pump with sand prevention and anti-winding functions according to claim 1, wherein one end of the rotor (9) is in clearance fit with the water inlet horn (1) to form a first labyrinth seal (2); the other end of the rotor (9) is in clearance fit with the guide vane body (12) to form a second labyrinth seal (10).
7. The all-through-flow submersible pump with sand control and anti-windup functions according to claim 5, characterized in that the motor chamber (13) is in communication with the hydraulic chamber (14) through a first labyrinth seal (2) and a second labyrinth seal (10).
8. The all-through-flow submersible pump with sand prevention and anti-winding functions according to claim 1, further comprising an impeller (8), wherein one end of the impeller (8) is connected with a transmission shaft in a transmission cavity (15); the other end is connected with the inner ring of the rotor (9).
9. An all-through-flow submersible electric pump with sand control and anti-wind function according to claim 8, characterized in that the impeller (8) comprises a hub and blades (81); the hub is connected with a transmission shaft in the transmission cavity (15); the blades (81) are fixedly connected with the inner ring of the rotor (9).
10. An all-through-flow submersible electric pump with sand control and anti-wind function according to claim 9, characterized in that the blades (81) pass through the hydraulic chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718056.5U CN219432068U (en) | 2023-04-04 | 2023-04-04 | Full through-flow submersible electric pump with sand prevention and winding prevention functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320718056.5U CN219432068U (en) | 2023-04-04 | 2023-04-04 | Full through-flow submersible electric pump with sand prevention and winding prevention functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219432068U true CN219432068U (en) | 2023-07-28 |
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ID=87338786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320718056.5U Active CN219432068U (en) | 2023-04-04 | 2023-04-04 | Full through-flow submersible electric pump with sand prevention and winding prevention functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219432068U (en) |
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2023
- 2023-04-04 CN CN202320718056.5U patent/CN219432068U/en active Active
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