Energy-saving and environmentally friendly canned motor pump

Abstract

The utility model belongs to the technical field of canned pumps, and specifically relates to an energy-saving and environment-friendly canned pump. A first telescopic rod, a top plate and a moving device are provided. When a worker maintains a stator, the first telescopic rod pushes the top plate to move the stator away from the equipment. When installing the stator, the moving device moves the stator back to the original point. The operation is very convenient, which greatly saves the time required for stator maintenance and improves the efficiency of stator maintenance. A first flange, a second flange and a sealing ring are provided, and the sealing ring can prevent water from entering the inside of the stator. During maintenance, the first flange and the second flange can be easily connected and separated, which effectively prevents damage to original parts and components and effectively improves resource utilization.

Description

Technical Field

[0001] The utility model relates to an energy-saving and environment-friendly shielded pump, belonging to the technical field of shielded pumps. Background Art

[0002] The canned motor pump is a leak-free pump that is composed of a canned motor and a pump. It is mainly composed of a pump body, an impeller, a stator, a rotor, front and rear bearings, a thrust plate and other parts. Its working principle is to transport the liquid from the low-pressure area to the high-pressure area through the interaction between the rotor and the stator. The stator and the rotor are isolated by non-magnetic corrosion-resistant thin-walled sleeves, and the rotor is supported by the front and rear bearings and immersed in the conveying medium, so there is no need for dynamic seals to prevent medium leakage. The canned motor pump has the characteristics of being fully enclosed and leak-free. It is particularly suitable for conveying flammable, explosive, precious, toxic, corrosive and radioactive liquids, and has a compact structure, small footprint, stable operation and low noise.

[0003] The shielded pump in the prior art has the following defects: when the staff maintains the stator, they need to cut the entire equipment before taking out the stator, which is time-consuming and labor-intensive, thereby reducing the efficiency of the stator maintenance operation; and when installing the stator, the staff must discard some parts of the original equipment and put the stator into the new parts, resulting in the abandonment of the original parts of the equipment and a waste of resources. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an energy-saving and environment-friendly canned motor pump which can improve the efficiency of stator maintenance work and prevent waste of resources.

[0005] The energy-saving and environment-friendly canned pump described in the utility model comprises a first sleeve, a plurality of moving devices are installed on the inner side wall of the first sleeve, a stator is installed between the plurality of moving devices, first flanges are fixedly installed at both ends of the first sleeve, a plurality of first telescopic rods located inside the first sleeve are fixedly installed on the first flange on the left side, the plurality of first telescopic rods are distributed in a circle with the axis of the first sleeve as the center, a top plate is fixedly installed on the protruding ends of the plurality of first telescopic rods, the top plate is abutted against the stator, a second sleeve is installed inside the stator, and the right end of the second sleeve is in contact with the first flange on the right side. The flange is fixedly connected, a rotor is provided inside the second sleeve, a main shaft is fixedly installed inside the rotor, a supporting device is fixedly installed between the right end of the main shaft and the inner wall of the second sleeve, a sealing ring is fixedly installed on the left side wall of the first flange on the left side, a boosting device is provided on the left side of the first flange on the left side, a main body is provided inside the boosting device, a water outlet pipe is fixedly installed on the outside of the main body, a return water assembly is fixedly installed on the outside of the water outlet pipe, the return water assembly is connected with the water outlet pipe, a second flange is provided inside the return water assembly, and the second flange is fixedly connected to the first flange by bolts.

[0006] Furthermore, the moving device includes an arc-shaped mounting plate, the inner wall of the arc-shaped mounting plate is provided with a rotating groove, the inner wall of the rotating groove is rotatably mounted with a plurality of gears, the plurality of gears are horizontally distributed along the inner wall of the rotating groove, a rack is provided inside the rotating groove corresponding to the gear, the rack is meshingly connected with the gear, and a second telescopic rod is fixedly mounted on the side of the rack away from the gear.

[0007] Furthermore, the supporting device includes a circular plate, an extension plate is fixedly installed on the side of the circular plate away from the stator, a fixed plate is sleeved on the outer side of the extension plate, a plurality of through grooves are penetrated through the surface of the circular plate corresponding to the extension plate, the through grooves extend to the surface of the fixed plate, and the plurality of through grooves are distributed in a circle with the axis of the circular plate as the center.

[0008] Furthermore, the boost device includes a connecting plate, a main body is fixedly mounted on a side of the connecting plate away from the first flange, a connecting groove is provided inside the main body, a turbine is provided inside the connecting groove, the turbine is connected to the main shaft by a key, and a feed groove is provided on the surface of the main body corresponding to the turbine.

[0009] Furthermore, the return water assembly includes a third flange, a connecting pipe is fixedly installed on the side of the third flange away from the first sleeve, a threaded pipe is sleeved on the outer surface of the connecting pipe, a bent pipe is rotatably installed on one end of the threaded pipe away from the connecting pipe, a return water pipe is fixedly installed on the other end of the bent pipe, and the return water pipe is connected to the outlet pipe.

[0010] Furthermore, the threaded pipe is connected to the connecting pipe through threads.

[0011] Furthermore, the sealing ring is made of fluororubber.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The energy-saving and environment-friendly canned pump described in the utility model is provided with a first telescopic rod, a top plate and a moving device. When the staff maintains the stator, the first telescopic rod pushes the top plate to make the stator leave the equipment. When installing the stator, the moving device moves to make the stator return to the original point. The operation is very convenient, which greatly saves the time required for stator maintenance and improves the efficiency of stator maintenance. The first flange, the second flange and the sealing ring are provided, and the sealing ring can prevent water from entering the inside of the stator. During maintenance, the first flange and the second flange can be easily connected and separated, which effectively prevents damage to the original parts and components and effectively improves the resource utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the mobile device in the utility model;

[0017] Figure 4 for Figure 2 A partial enlarged view of B in the middle;

[0018] Figure 5 for Figure 2 A partial enlarged view of middle A;

[0019] Figure 6 for Figure 2 A partial enlarged view of C in the middle.

[0020] In the figure: 1. first sleeve; 2. first flange; 3. first telescopic rod; 4. top plate; 5. stator; 6. moving device; 7. second sleeve; 8. rotor; 9. main shaft; 10. supporting device; 11. sealing ring; 12. booster device; 13. water outlet pipe; 14. return water assembly; 15. second flange; 16. arc-shaped mounting plate; 17. rotating groove; 18. gear; 19. rack; 20. second telescopic rod; 21. circular plate; 22. extension plate; 23. fixed plate; 24. through groove; 25. connecting plate; 26. main body; 27. connecting groove; 28. turbine; 29. ​​feed trough; 30. third flange; 31. connecting pipe; 32. threaded pipe; 33. elbow; 34. return water pipe. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Reference Figure 1-6As shown, an energy-saving and environment-friendly canned pump comprises a first sleeve 1, both ends of the first sleeve 1 are fixedly installed with first flanges 2, a plurality of first telescopic rods 3 are fixedly installed on one side of one of the first flanges 2 close to the first sleeve 1, the plurality of first telescopic rods 3 are distributed circumferentially around the center line of the first sleeve 1, a top plate 4 is fixedly installed on one end of the plurality of first telescopic rods 3 away from the first flange 2, a stator 5 is arranged inside the first sleeve 1 corresponding to the top plate 4, the first telescopic rod 3 drives the top plate 4 to push the stator 5 away from the first sleeve 1 through telescoping, a plurality of moving devices 6 are fixedly installed on the inner wall of the first sleeve 1 corresponding to the stator 5, the plurality of moving devices 6 are distributed circumferentially around the center line of the first sleeve 1, the moving devices 6 drive the stator 5 to enter the first sleeve 1, and at the same time facilitate the stator 5 to leave the first sleeve 1, a second sleeve 7 is arranged inside the first sleeve 1 corresponding to the stator 5, one end of the second sleeve 7 is fixedly connected to one of the first flanges 2, the second sleeve A rotor 8 is provided inside 7, and a main shaft 9 is fixedly installed inside the rotor 8. A supporting device 10 is fixedly installed on the inner wall of the second sleeve 7 corresponding to the main shaft 9. The supporting device 10 prevents the rotor 8 from contacting the second sleeve 7 by supporting the main shaft 9. A sealing ring 11 is fixedly installed on the side of the first flange 2 away from the main shaft 9. The sealing ring 11 prevents water from entering the first sleeve 1. A booster device 12 is provided on the side of the first flange 2 corresponding to the sealing ring 11. The booster device 12 boosts the water flow. A main body 26 is provided inside the booster device 12. A water outlet pipe 13 is fixedly installed on the outside of the main body 26. A return water assembly 14 is fixedly installed on the outside of the water outlet pipe 13. The return water assembly 14 is connected with the water outlet pipe 13. Part of the water flow enters the second sleeve 7 through the return water assembly 14, so that the temperature of the rotor 8 and the main shaft 9 is reduced. A second flange 15 is provided in the return water assembly 14, and the second flange 15 is fixedly connected to the first flange 2 by bolts.

[0023] As shown in the figure, the moving device 6 includes an arc-shaped mounting plate 16, and a rotating groove 17 is opened on the inner wall of the arc-shaped mounting plate 16. A plurality of gears 18 are fixedly installed on the inner wall of the rotating groove 17. The gears 18 are connected to an external power source. The plurality of gears 18 are horizontally distributed along the inner wall of the rotating groove 17. A rack 19 is provided inside the rotating groove 17 corresponding to the gear 18. The rack 19 is meshed with the gear 18. A second telescopic rod 20 is fixedly installed on the side of the rack 19 away from the gear 18. The gear 18 drives the second telescopic rod 20 on the rack 19 to move, and the second telescopic rod 20 is fixed by inserting the stator 5 into the stator 5.

[0024] As shown in the figure, the supporting device 10 includes a circular plate 21, an extension plate 22 is fixedly installed on the side of the circular plate 21 away from the stator 5, a fixing plate 23 is sleeved on the outer side of the extension plate 22, and a plurality of through grooves 24 are opened through the surface of the circular plate 21 corresponding to the extension plate 22, and the through grooves 24 extend to the surface of the fixing plate 23. The plurality of through grooves 24 are distributed circumferentially about the center line of the circular plate 21, and water flows into the main shaft 9 and the rotor 8 through the through grooves 24, and enters the boosting device 12 through the through grooves 24.

[0025] As shown in the figure, the boost device 12 includes a connecting plate 25, and a main body 26 is fixedly installed on the side of the connecting plate 25 away from the first flange 2. A connecting groove 27 is provided inside the main body 26, and a turbine 28 is provided inside the connecting groove 27. The turbine 28 is connected to the main shaft 9 by a key, and a feed groove 29 is provided on the surface of the main body 26 corresponding to the turbine 28, and water flows into the surface of the turbine 28 through the feed groove 29.

[0026] As shown in the figure, the return water assembly 14 includes a third flange 30, and a connecting pipe 31 is fixedly installed on the side of the third flange 30 away from the first sleeve 1. The outer surface of the connecting pipe 31 is sleeved with a threaded pipe 32, and a bend pipe 33 is rotatably installed on the end of the threaded pipe 32 away from the connecting pipe 31. A return water pipe 34 is fixedly installed on the other end of the bend pipe 33. The return water pipe 34 is connected to the outlet pipe 13, and part of the water flows into the second sleeve 7 through the return water pipe 34, the bend pipe 33, the threaded pipe 32 and the connecting pipe 31 in sequence.

[0027] As shown in the figure, the material used for the sealing ring 11 is fluororubber, which is a high-performance elastomeric material with many advantages: 1. Fluororubber has excellent chemical corrosion resistance and can resist the erosion of various chemical substances; 2. Fluororubber has good aging resistance, can maintain its elasticity and sealing performance for a long time, and is not easy to harden, crack or deform; 3. Fluororubber has good mechanical properties, including high elasticity, high tensile strength and wear resistance, and can perform well in dynamic sealing and high-pressure sealing.

[0028] As shown in the figure, the threaded tube 32 is connected to the connecting tube 31 through threads, and the threaded tube 32 can be freely separated from the connecting tube 31.

[0029] Working principle: the stator 5 drives the main shaft 9 on the rotor 8 to rotate at a high speed, and the main shaft 9 drives the turbine 28 in the supercharging device 12 to rotate at a high speed, so that a vacuum is formed in the main body 26, accelerating the passage of water. The water flows into the second sleeve 7 through the outlet pipe 13, the return pipe 34, the elbow 33, the threaded pipe 32 and the connecting pipe 31 in sequence, and the water flows into the main shaft 9 and the rotor 8 through the through groove 24, and returns to the supercharging device 12 through the through groove 24. The water cools the rotating main shaft 9 and the rotor 8.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

[0031] It is particularly noted that in the description of the present invention, the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention rather than requiring that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

Claims

1. An energy-saving and environment-friendly canned motor pump, characterized in that: The invention comprises a first sleeve (1), a plurality of moving devices (6) are installed on the inner side wall of the first sleeve (1), a stator (5) is installed between the plurality of moving devices (6), first flanges (2) are fixedly installed at both ends of the first sleeve (1), a plurality of first telescopic rods (3) located inside the first sleeve (1) are fixedly installed on the first flange (2) on the left side, the plurality of first telescopic rods (3) are distributed in a circle with the axis of the first sleeve (1) as the center, a top plate (4) is fixedly installed on the protruding ends of the plurality of first telescopic rods (3), the top plate (4) abuts against the stator (5), a second sleeve (7) is installed inside the stator (5), the right end of the second sleeve (7) is fixedly connected to the first flange (2) on the right side, and the interior of the second sleeve (7) is provided with A rotor (8) is provided, a main shaft (9) is fixedly installed inside the rotor (8), a supporting device (10) is fixedly installed between the right end of the main shaft (9) and the inner wall of the second sleeve (7), a sealing ring (11) is fixedly installed on the left side wall of the first flange (2) on the left side, a boosting device (12) is provided on the left side of the first flange (2) on the left side, a main body (26) is provided inside the boosting device (12), a water outlet pipe (13) is fixedly installed on the outside of the main body (26), a water return assembly (14) is fixedly installed on the outside of the water outlet pipe (13), the water return assembly (14) is connected to the water outlet pipe (13), a second flange (15) is provided inside the water return assembly (14), and the second flange (15) is fixedly connected to the first flange (2) by bolts.

2. The energy-saving and environment-friendly canned motor pump according to claim 1 is characterized in that: The moving device (6) comprises an arc-shaped mounting plate (16), the inner wall of the arc-shaped mounting plate (16) is provided with a rotation groove (17), the inner wall of the rotation groove (17) is provided with a plurality of gears (18) rotatably mounted, the plurality of gears (18) are horizontally distributed along the inner wall of the rotation groove (17), a rack (19) is provided inside the rotation groove (17) corresponding to the gear (18), the rack (19) is meshedly connected with the gear (18), and a second telescopic rod (20) is fixedly mounted on a side of the rack (19) away from the gear (18).

3. The energy-saving and environment-friendly canned motor pump according to claim 1 is characterized in that: The supporting device (10) comprises a circular plate (21), an extension plate (22) being fixedly mounted on a side of the circular plate (21) away from the stator (5), a fixing plate (23) being sleeved on the outer side of the extension plate (22), a plurality of through grooves (24) being penetrated through the surface of the circular plate (21) corresponding to the extension plate (22), the through grooves (24) extending to the surface of the fixing plate (23), and the plurality of through grooves (24) being distributed in a circle with the axis of the circular plate (21) as the center.

4. The energy-saving and environment-friendly canned motor pump according to claim 1 is characterized in that: The supercharging device (12) comprises a connecting plate (25), a main body (26) being fixedly mounted on a side of the connecting plate (25) away from the first flange (2), a connecting groove (27) being provided inside the main body (26), a turbine (28) being provided inside the connecting groove (27), the turbine (28) being connected to the main shaft (9) via a key, and a feed groove (29) being provided on the surface of the main body (26) corresponding to the turbine (28).

5. The energy-saving and environment-friendly canned motor pump according to claim 1 is characterized in that: The return water assembly (14) comprises a third flange (30), a connecting pipe (31) is fixedly mounted on the side of the third flange (30) away from the first sleeve (1), a threaded pipe (32) is sleeved on the outer surface of the connecting pipe (31), a curved pipe (33) is rotatably mounted on one end of the threaded pipe (32) away from the connecting pipe (31), a return water pipe (34) is fixedly mounted on the other end of the curved pipe (33), and the return water pipe (34) is connected to the water outlet pipe (13).

6. The energy-saving and environment-friendly canned motor pump according to claim 5 is characterized in that: The threaded pipe (32) is connected to the connecting pipe (31) via threads.

7. The energy-saving and environment-friendly canned motor pump according to claim 1 is characterized in that: The material used for the sealing ring (11) is fluororubber.

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