A multi-suction head submersible slurry pump

Abstract

This utility model discloses a multi-suction head submersible slurry pump, including a pump body with an adjustable impeller inside, and a fixing mechanism. The fixing mechanism includes a squeezing ring, an arc-shaped fixing block one, an arc-shaped fixing block two, a fixing rod, an adjusting block, and a sealing ring. A main filter screen is installed at the main suction head on the lower side of the pump body. Squeezing rings are movably fitted on the lower outer surface of the main suction head and the upper outer surface of the main filter screen, respectively. An arc-shaped fixing block one is provided on the outer surface of the main suction head. An arc-shaped fixing block two is rotatably connected to the rear end of the right side of the arc-shaped fixing block one via a pin. A fixing rod is fixedly connected to the front end of the left side of the arc-shaped fixing block two. With the fixing mechanism, this multi-suction head submersible slurry pump allows for quick disassembly and assembly of the main and branch filters compared to using multiple sets of bolts to install the main and branch filters, thus improving the maintenance efficiency of the filtration device on the slurry pump.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, specifically a multi-suction head submersible slurry pump. Background Technology

[0002] A slurry pump is a device that increases the energy of a solid-liquid mixture by using centrifugal force, converting electrical energy into the kinetic and potential energy of the medium. It is widely used in industries such as mining, power plants, dredging, metallurgy, chemical, building materials and petroleum. It is usually used to transport slurries containing solid particles, corrosive or high concentrations. In order to increase the suction range and improve the slurry removal efficiency, multi-suction head submersible slurry pumps are usually used.

[0003] When existing multi-suction head submersible slurry pumps are working, the motor usually drives the shaft to rotate, and the impeller on the shaft rotates accordingly, generating centrifugal force, which causes the slurry to enter the pump body from the main suction head and the branch suction port. Under the action of the impeller, the slurry flows out from the center of the impeller to the edge of the impeller, and then is discharged from the pump body from the discharge port in sequence.

[0004] Existing multi-suction head submersible slurry pumps have the following problems: after a period of use, the main filter and branch filter usually need to be cleaned and replaced. However, both are usually fixed to the pump body with multiple sets of bolts, which is troublesome and time-consuming to disassemble and assemble. Therefore, we propose a multi-suction head submersible slurry pump. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a multi-suction head submersible slurry pump. By setting up a fixing mechanism, compared with using multiple sets of bolts to install the main filter screen and branch filter screen, the main filter screen and branch filter screen can be quickly disassembled and assembled, which improves the maintenance efficiency of the filtration device on the slurry pump and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-suction head submersible slurry pump, including a pump body, an adjustable impeller inside the pump body, and a fixing mechanism;

[0007] The fixing mechanism includes a compression ring, an arc-shaped fixing block one, an arc-shaped fixing block two, a fixing rod, an adjusting block, and a sealing ring. A main filter screen is installed at the main suction head on the lower side of the pump body. Compression rings are movably fitted onto the lower outer surface of the main suction head and the upper outer surface of the main filter screen, respectively. An arc-shaped fixing block one is provided on the outer surface of the main suction head. An arc-shaped fixing block two is rotatably connected to the rear right side of the arc-shaped fixing block one via a pin. A fixing rod is fixedly connected to the front left side of the arc-shaped fixing block two. An adjusting block is threaded into a threaded groove on the left side of the outer surface of the fixing rod. A sealing ring is provided in the mounting groove on the lower surface of the main suction head, and the lower surface of the sealing ring contacts the upper surface of the main filter screen. By setting up this fixing mechanism, compared to using multiple sets of bolts to install the main filter screen and branch filters, the main filter screen and branch filters can be quickly disassembled and assembled, improving the maintenance efficiency of the filtration device on the slurry pump.

[0008] Furthermore, the upper surface of the pump body is provided with a support pipe frame, and a rotating shaft is rotatably connected inside the support pipe frame. An impeller is provided at the lower end of the rotating shaft, which facilitates the realization of the equipment's functions.

[0009] Furthermore, a motor is provided on the upper surface of the support frame, the lower end of the motor's output shaft is fixedly connected to the upper end of the rotating shaft, and the input end of the motor is electrically connected to the output end of an external controller to facilitate driving the impeller to rotate.

[0010] Furthermore, the pump body has evenly distributed branch suction ports on its outer surface, each branch suction port is equipped with a branch suction head, and the lower surface of each branch suction head is fitted with a branch filter screen to increase the suction range.

[0011] Furthermore, the fixing mechanism also includes an installation component, which includes an internal thread groove and an external thread. The lower inner wall of the branch suction head is provided with an internal thread groove, and the upper outer surface of the branch filter is provided with an external thread. The external threads are threadedly connected to the adjacent internal thread grooves, which facilitates the disassembly and assembly of the branch filter.

[0012] Furthermore, the mounting assembly also includes a first sealing ring and a second sealing ring. The first sealing ring is provided in the slots opened on the upper side of the outer surface of the branch filter screen. The outer surface of the first sealing ring contacts the inner wall of the adjacent branch suction head. The second sealing ring is fitted on the upper side of the outer surface of the branch filter screen. The upper surface of the second sealing ring contacts the lower surface of the adjacent branch suction head, which facilitates sealing.

[0013] Furthermore, a discharge port is provided on the rear side of the outer surface of the pump body, and a liquid outlet pipe is provided at the discharge port. The liquid outlet pipe is connected to the pump body through the discharge port to facilitate the discharge of slurry.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-suction head submersible slurry pump has the following advantages:

[0015] When the main filter and branch filters need to be cleaned and replaced, rotate the adjusting block to remove it from the fixing rod. Then, rotate the arc-shaped fixing block one and arc-shaped fixing block two outward to open and remove them, releasing the compression of the upper and lower squeezing rings. This releases the fixing relationship between the main filter and the pump body, allowing the main filter to be removed for cleaning and replacement. Rotate the branch filter to release the fixing relationship between the branch filter and the branch suction head through the internal thread groove and external thread, allowing the branch filter to be removed for cleaning and replacement. Compared to using multiple sets of bolts to install the main filter and branch filters, this method allows for quick disassembly and assembly of the main filter and branch filters, improving the maintenance efficiency of the filtration device on the slurry pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention in an explosion.

[0018] Figure 3 This is a cross-sectional structural schematic diagram of the branch suction head of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of point A of this utility model;

[0020] Figure 5 This is a cross-sectional structural schematic diagram of the pump body of this utility model;

[0021] Figure 6 This is an enlarged structural schematic diagram of section B of this utility model;

[0022] Figure 7 This is a partial structural diagram of the fixing mechanism of this utility model.

[0023] In the diagram: 1. Pump body, 2. Impeller, 3. Main filter screen, 4. Fixing mechanism, 41. Extrusion ring, 42. Arc-shaped fixing block one, 43. Arc-shaped fixing block two, 44. Fixing rod, 45. Adjusting block, 46. Sealing ring, 47. Mounting assembly, 471. Internal thread groove, 472. External thread, 473. Sealing ring one, 474. Sealing ring two, 5. Branch pipe bracket, 6. Rotary shaft, 7. Motor, 8. Branch suction port, 9. Branch suction head, 10. Branch filter screen, 11. Discharge port, 12. Liquid outlet pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 This embodiment provides a technical solution: a multi-suction submersible slurry pump, including a pump body 1, an adjustable impeller 2 inside the pump body 1, and a fixing mechanism 4. A support pipe frame 5 is provided on the upper surface of the pump body 1, and a rotating shaft 6 is rotatably connected inside the support pipe frame 5. The impeller 2 is located at the lower end of the rotating shaft 6. A motor 7 is provided on the upper surface of the support pipe frame 5, and the lower end of the output shaft of the motor 7 is fixedly connected to the upper end of the rotating shaft 6. The input end of the motor 7 is electrically connected to the output end of an external controller. Evenly distributed branch suction ports 8 are provided on the upper side of the outer surface of the pump body 1, and branch suction heads 9 are provided at each branch suction port 8. Branch filter screens 10 are fitted onto the lower surface of each branch suction head 9. A discharge port is provided on the rear side of the outer surface of the pump body 1. The discharge port 11 is equipped with a liquid outlet pipe 12, which is connected to the pump body 1 through the discharge port 11. During operation, the main suction head and the branch suction head 9 are inserted into the slurry. Under the control of the external controller, the motor 7 works, and the output shaft of the motor 7 drives the rotating shaft 6 to rotate. The impeller 2 at the lower end of the rotating shaft 6 rotates accordingly, generating centrifugal force, which causes the slurry to enter the pump body 1 through the main suction head, the branch suction head 9, and the branch suction port 8. Under the action of the impeller 2, the slurry flows from the center of the impeller 2 to the edge of the impeller 2, and then is discharged from the pump body 1 through the liquid outlet pipe 12 from the discharge port 11. Larger particles are blocked by the main filter screen 3 and the branch filter screen 10 before entering the pump body 1, so as to avoid large particles clogging the pump body 1.

[0026] Fixed mechanism 4 includes a compression ring 41, an arc-shaped fixing block 1 42, an arc-shaped fixing block 2 43, a fixing rod 44, an adjusting block 45, and a sealing ring 46. A main filter screen 3 is installed at the main suction head on the lower side of the pump body 1. Compression rings 41 are movably fitted onto the lower outer surface of the main suction head and the upper outer surface of the main filter screen 3, respectively (the outer surface of the two compression rings 41 is inclined on both the upper and lower sides). An arc-shaped fixing block 1 42 is provided on the outer surface of the main suction head (an clearance groove is provided on the front side of the arc-shaped fixing block 1 42). An arc-shaped fixing block 2 43 is rotatably connected to the rear right side of the arc-shaped fixing block 1 42 via a pin. A fixing rod 44 is fixedly connected to the front left side of the arc-shaped fixing block 2 43. A threaded groove is provided on the left side of the outer surface of the fixing rod 44. The main suction head is connected to an adjusting block 45. A sealing ring 46 is provided in the mounting groove on the lower surface of the main suction head. The lower surface of the sealing ring 46 contacts the upper surface of the main filter screen 3. The fixing mechanism 4 also includes a mounting component 47, which includes an internal thread groove 471 and an external thread 472. The lower side of the inner wall of the branch suction head 9 is provided with an internal thread groove 471. The upper side of the outer surface of the branch filter screen 10 is provided with an external thread 472. The external threads 472 are threadedly connected to the adjacent internal thread grooves 471. The mounting component 47 also includes a sealing ring 473 and a sealing ring 474 (both sealing rings 473 and 474 can be made of rubber). The upper side of the outer surface of the branch filter screen 10 is provided with a sealing ring 473. The outer surface of the sealing ring 473 is provided with a sealing ring 473. The surface of the main filter 3 contacts the inner wall of the adjacent branch suction head 9. A second sealing ring 474 is fitted on the upper side of the outer surface of each branch filter 10. The upper surface of the second sealing ring 474 contacts the lower surface of the adjacent branch suction head 9. When cleaning and replacing the main filter 3 and branch filter 10, rotate the adjusting block 45 to remove it from the fixing rod 44. This releases the fixing relationship between the first arc-shaped fixing block 42 and the second arc-shaped fixing block 43. Then, rotate both outwards to open and remove them, releasing the pressure on the upper and lower compression rings 41. This releases the fixing relationship between the main filter 3 and the pump body 1, allowing the main filter 3 to be removed for cleaning and replacement. Align the clean main filter 3 with the main suction head of the pump body 1, and then close the upper and lower compression rings 41. Next, the arc-shaped fixing block 42 and the arc-shaped fixing block 43 are fitted onto the outside of the whole formed by the two extrusion rings 41. At this time, the fixing rod 44 passes through the clearance groove on the front side of the arc-shaped fixing block 42. The adjusting block 45 is rotated in the opposite direction by hand, so that the adjusting block 45 moves on the fixing rod 44. The movement of the adjusting block 45 causes the arc-shaped fixing block 42 and the arc-shaped fixing block 43 to rotate and move closer to each other around the pin. Since the outer surface of the whole formed by the two extrusion rings 41 is inclined on both the upper and lower sides, the rotation of the arc-shaped fixing block 42 and the arc-shaped fixing block 43 squeezes the extrusion rings 41, so that the two extrusion rings 41 fit tightly together. This causes the main filter screen 3 to be installed at the main suction head of the pump body 1. Due to the presence of the sealing ring 46, slurry is prevented from entering the pump body 1 from the connection between the main filter screen 3 and the main suction head.Rotating the branch filter screen 10 releases the connection between the branch filter screen 10 and the branch suction head 9 via the internal thread groove 471 and the external thread 472, allowing the branch filter screen 10 to be removed. Rotating the branch filter screen 10 in the opposite direction re-engages it with the branch suction head 9. The presence of sealing ring 1 (473) and sealing ring 2 (474) prevents slurry from entering the pump body 1 from the connection between the branch filter screen 10 and the branch suction head 9.

[0027] The working principle of the multi-suction head submersible slurry pump provided by this utility model is as follows: During operation, the main suction head and branch suction head 9 are inserted into the slurry. Under the control of the external controller, the motor 7 works, and the output shaft of the motor 7 drives the rotating shaft 6 to rotate. The impeller 2 at the lower end of the rotating shaft 6 rotates accordingly, generating centrifugal force, which causes the slurry to enter the pump body 1 through the main suction head, branch suction head 9, and branch suction port 8. Under the action of the impeller 2, the slurry flows from the center of the impeller 2 to the edge of the impeller 2, and then is discharged from the pump body 1 through the discharge pipe 12 from the discharge port 11. Larger particles are filtered by the main filter screen 3 and branch suction port 8 before entering the pump body 1. The filter screen 10 blocks larger particles from clogging the pump body 1. When cleaning and replacing the main filter screen 3 and the branch filter screen 10, rotate the adjusting block 45 to remove it from the fixing rod 44. This releases the fixing relationship between the arc-shaped fixing block 1 42 and the arc-shaped fixing block 2 43. Then, rotate both outwards to open and remove them, releasing the compression of the upper and lower squeezing rings 41. This releases the fixing relationship between the main filter screen 3 and the pump body 1. The main filter screen 3 can then be removed for cleaning and replacement. Align the clean main filter screen 3 with the main suction head of the pump body 1, and then... After closing ring 41, arc-shaped fixing block 1 42 and arc-shaped fixing block 2 43 are placed on the outside of the whole formed by the two extrusion rings 41. At this time, the fixing rod 44 passes through the clearance groove on the front side of arc-shaped fixing block 1 42. The adjusting block 45 is rotated in the opposite direction by hand, so that the adjusting block 45 moves on the fixing rod 44. The movement of the adjusting block 45 causes arc-shaped fixing block 1 42 and arc-shaped fixing block 2 43 to rotate around the pin and move closer to each other. Since the outer surface of the whole formed by the two extrusion rings 41 is inclined on both the upper and lower sides, the rotation of arc-shaped fixing block 1 42 and arc-shaped fixing block 2 43 squeezes the extrusion ring 41, so that the two extrusion rings 41... The pressure ring 41 fits tightly, causing the main filter screen 3 to be installed at the main suction head of the pump body 1. Due to the presence of the sealing ring 46, slurry is prevented from entering the pump body 1 from the connection between the main filter screen 3 and the main suction head. By rotating the branch filter screen 10, the connection between the branch filter screen 10 and the branch suction head 9 through the internal thread groove 471 and the external thread 472 is released, and the branch filter screen 10 can be removed. By rotating the branch filter screen 10 in the opposite direction, the branch filter screen 10 and the branch suction head 9 can be screwed back together. Due to the presence of the sealing ring 1 473 and the sealing ring 2 474, slurry is prevented from entering the pump body 1 from the connection between the branch filter screen 10 and the branch suction head 9.

[0028] It is worth noting that the motor 7 disclosed in the above embodiments can be a YE series three-phase AC asynchronous motor, and the external controller controls the operation of the motor 7 using methods commonly used in the prior art.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-suction underwater slurry pump comprising a pump body (1) having an adjustable impeller (2) inside, characterized in that: It also includes fixed mechanisms (4); The fixing mechanism (4) includes a squeezing ring (41), an arc-shaped fixing block one (42), an arc-shaped fixing block two (43), a fixing rod (44), an adjusting block (45), and a sealing ring (46). The main suction head on the lower side of the pump body (1) is fitted with a main filter screen (3). The squeezing ring (41) is movably sleeved on the lower side of the outer surface of the main suction head and the upper side of the outer surface of the main filter screen (3). An arc-shaped fixing block one (42) is provided on the outer surface of the main suction head. An arc-shaped fixing block two (43) is rotatably connected to the rear end of the right side of the arc-shaped fixing block one (42) through a pin shaft. A fixing rod (44) is fixedly connected to the front end of the left side of the arc-shaped fixing block two (43). An adjusting block (45) is threadedly connected to the threaded groove on the left side of the outer surface of the fixing rod (44). A sealing ring (46) is provided in the mounting groove on the lower surface of the main suction head. The lower surface of the sealing ring (46) is in contact with the upper surface of the main filter screen (3).

2. A multi-suction underwater slurry pump as claimed in claim 1, wherein: The upper surface of the pump body (1) is provided with a branch pipe frame (5), and the inside of the branch pipe frame (5) is rotatably connected with a rotating shaft (6), and the lower end of the rotating shaft (6) is provided with an impeller (2).

3. A multi-suction underwater slurry pump as claimed in claim 2, characterized in that: The upper surface of the support frame (5) is provided with a motor (7). The lower end of the output shaft of the motor (7) is fixedly connected to the upper end of the rotating shaft (6). The input end of the motor (7) is electrically connected to the output end of an external controller.

4. A multi-suction underwater slurry pump as claimed in claim 1, wherein: The pump body (1) has evenly distributed branch suction ports (8) on the upper side of its outer surface. Each branch suction port (8) is provided with a branch suction head (9), and each branch suction head (9) is fitted with a branch filter screen (10) on its lower surface.

5. A multi-suction underwater slurry pump as claimed in claim 4, characterized in that: The fixing mechanism (4) also includes an installation component (47), which includes an internal thread groove (471) and an external thread (472). The lower inner wall of the branch suction head (9) is provided with an internal thread groove (471), and the upper outer surface of the branch filter screen (10) is provided with an external thread (472). The external threads (472) are threadedly connected to the adjacent internal thread groove (471).

6. A multi-suction underwater slurry pump as claimed in claim 5, characterized in that: The mounting assembly (47) also includes a sealing ring one (473) and a sealing ring two (474). The slots opened on the upper side of the outer surface of the branch filter (10) are provided with sealing ring one (473). The outer surface of sealing ring one (473) is in contact with the inner wall of the adjacent branch suction head (9). The upper side of the outer surface of the branch filter (10) is provided with sealing ring two (474). The upper surface of sealing ring two (474) is in contact with the lower surface of the adjacent branch suction head (9).

7. A multi-suction head submersible slurry pump according to claim 1, characterized in that: The pump body (1) has a discharge port (11) on the rear side of its outer surface. A liquid outlet pipe (12) is provided at the discharge port (11). The liquid outlet pipe (12) is connected to the pump body (1) through the discharge port (11).

Images