A non-disassembly cleaning device for a centrifugal pump

Abstract

The present invention relates to the field of centrifugal pump cleaning equipment, and particularly to a non-dismantling cleaning device for centrifugal pumps. The present invention provides such a non-dismantling cleaning device for centrifugal pumps, which includes a main housing, a rotating cylinder, etc.; the main housing is connected to the rotating cylinder. A liquid delivery pipe is arranged in the rotating cylinder, and a plurality of cleaning pipes are circumferentially and arrayed on the liquid delivery pipe. During the process of extending each cleaning pipe into each flow channel of the impeller of the centrifugal pump respectively, by operating the pull rod, the magnet connected to the pull rope can be controlled to magnetically attract the cleaning pipe to the inner wall of the flow channel of the impeller. Then, the rotating cylinder drives the liquid delivery pipe and the cleaning pipes to rotate, and the cleaning pipes drive the impeller to rotate, and the inner wall of the flow channel of the impeller of the centrifugal pump and the inner wall of the centrifugal pump housing are flushed through the cleaning pipes. It solves the technical problem that the cleaning work of the centrifugal pump requires multiple disassembly, cleaning and assembly operations in sequence, resulting in low cleaning efficiency of the centrifugal pump.

Description

Technical Field

[0001] The present invention relates to the field of centrifugal pump cleaning equipment, and particularly to a non-dismantling cleaning device for centrifugal pumps. Background Art

[0002] After a centrifugal pump is used for a long time, a large amount of dirt is likely to remain on the inner walls of the pump casing and the impeller. As the dirt accumulates continuously in the centrifugal pump, it will affect the overall working efficiency and service life of the centrifugal pump. Therefore, it is necessary to regularly maintain and clean the centrifugal pump.

[0003] In the regular maintenance and cleaning work of the centrifugal pump, it is necessary to disassemble the centrifugal pump from the equipment on which it is installed, and further disassemble the centrifugal pump casing and the internal impeller, and respectively carry out in-depth cleaning work on the centrifugal pump casing and the impeller. After completing the cleaning work of the centrifugal pump, it is also necessary to install and restore the centrifugal pump casing and the impeller and assemble them back to the equipment to be installed, resulting in a relatively cumbersome and complex overall cleaning work of the centrifugal pump and a low cleaning efficiency. Summary of the Invention

[0004] In order to overcome the drawback that the cleaning work of the centrifugal pump requires a number of disassembly, cleaning and assembly operations in sequence, resulting in a low cleaning efficiency of the centrifugal pump, the present invention provides a non-dismantling cleaning device for centrifugal pumps.

[0005] A non-dismantling cleaning device for centrifugal pumps described in the present invention includes a main housing, a rotating cylinder, a driving assembly, an infusion pipe, a cleaning pipe, a pull rope and a magnet; a rotating cylinder is rotatably connected inside the main housing; a driving assembly for driving the rotating cylinder to rotate is connected to the main housing; an infusion pipe is fixedly connected inside the rotating cylinder; an infusion cylinder is fixedly connected to the right side of the main housing; the right end of the infusion pipe is connected to the infusion cylinder; a liquid guide pipe is connected to the upper side of the infusion cylinder; the left end of the infusion pipe is connected to a connector; a number of cleaning pipes are circumferentially arranged in an array around the connector; a flushing groove structure is provided on the left side of the cleaning pipe; a universal joint structure is provided on the cleaning pipe; a pull rope penetrates through the cleaning pipe; a spring is fixedly connected between the pull rope and the adjacent cleaning pipe; a magnet is fixedly connected to each end of the pull rope away from the connector; a pull rod is slidably connected in the infusion pipe; one end of the pull rope close to the connector is fixedly connected to the pull rod.

[0006] Further, all the flushing grooves are arranged in a diffusion structure that expands from the side close to the connector to the side away from the connector.

[0007] Further, the right end of the infusion pipe is screwed with an adjusting cap by a threaded structure; the right end of the pull rod is fixedly connected to the adjusting cap.

[0008] Further, two hooks are provided at the end of the cleaning pipe away from the connector; the magnet is initially hung between the two hooks.

[0009] Furthermore, the driving component includes a motor, a spur gear, and a toothed ring; the motor is installed on the main housing; the output shaft of the motor is fixedly connected to the spur gear; the toothed ring is fixedly connected to the outer surface of the rotating cylinder; the spur gear meshes with the toothed ring.

[0010] Furthermore, a scrubbing component is commonly connected between the infusion tube and all the cleaning tubes; the scrubbing component is connected to the main housing; the scrubbing component includes a feed tube, a rotating piece, a feed ring, a guide tube, a storage tube, and a scouring pipe fitting; no less than one feed tube is fixedly connected inside the infusion tube; the rotating piece is fixedly connected to the right end of the infusion tube; the feed ring is fixedly connected to the right side of the main housing; the rotating piece is rotatably connected to the feed ring; the right end of the feed tube penetrates through the rotating piece and is connected to the feed ring; the guide tube is connected to the upper side of the feed ring; the storage tube is fixedly connected to the left end of the infusion tube; the left end of the feed tube is connected to the storage tube; a scouring pipe fitting is connected inside the cleaning tube; the scouring pipe fitting is connected to the storage tube.

[0011] Furthermore, the scouring pipe fitting is composed of a spray pipe and a connecting pipe; the spray pipe is fixedly connected inside the cleaning tube; the spray pipe is connected to a nozzle on the side facing the adjacent flushing groove; a connecting pipe is commonly connected between the spray pipe and the storage tube.

[0012] Furthermore, each nozzle is respectively aligned with an adjacent flushing groove.

[0013] Furthermore, the aperture diameters of the discharge ports of the nozzles connected to the spray pipe gradually decrease from the side close to the connecting pipe to the side far from the connecting pipe.

[0014] Furthermore, a sealing flange is screwed onto the outer surface of the main housing through a threaded structure.

[0015] Advantages of the present invention: An anti-disassembly cleaning device for a centrifugal pump described in the present invention has a plurality of cleaning tubes arranged in a circumferential array on the infusion tube. During the process of inserting each cleaning tube into the respective flow channels of the impeller of the centrifugal pump, the magnet connected to the pull rope can be controlled by operating the pull rod, so that the cleaning tube is magnetically attracted to the inner wall of the flow channel of the impeller. Then, the infusion tube and the cleaning tube are driven to rotate, and the cleaning tube drives the impeller to rotate. The inner wall of the flow channel of the impeller of the centrifugal pump and the inner wall of the centrifugal pump housing are directly flushed through the flushing grooves provided on the cleaning tube, without disassembling the overall structure of the centrifugal pump, improving the cleaning efficiency of the centrifugal pump;

[0016] An anti-disassembly cleaning device for a centrifugal pump described in the present invention is also connected with a scouring pipe fitting on the cleaning tube. By conveying cleaning sand to the scouring pipe fitting, the inside of the centrifugal pump is scoured by the cleaning sand ejected from the scouring pipe fitting, improving the cleaning effect on the centrifugal pump;

[0017] An anti-disassembly cleaning device for a centrifugal pump described in the present invention solves the technical problem that the cleaning work of the centrifugal pump requires multiple disassembly, cleaning, and assembly operations in sequence, resulting in low cleaning efficiency of the centrifugal pump. Description of the Drawings

[0018] Figure 1 Schematic diagram of the first perspective three-dimensional structure of the present invention according to an embodiment;

[0019] Figure 2 Schematic diagram of the second perspective three-dimensional structure of the present invention according to an embodiment;

[0020] Figure 3 Cross-sectional view of the infusion tube, infusion cylinder, adjustment cap and material delivery ring of the present invention according to an embodiment;

[0021] Figure 4 Cross-sectional view of the infusion tube and connector of the present invention according to an embodiment;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the cleaning tube of the present invention according to an embodiment;

[0023] Figure 6 Cross-sectional view of the cleaning tube of the present invention according to an embodiment;

[0024] Figure 7 Schematic diagram of the three-dimensional structure of the material spraying tube of the present invention according to an embodiment.

[0025] Reference numerals in the drawings: 1 - main housing, 11 - sealing flange, 2 - rotating cylinder, 21 - motor, 22 - spur gear, 23 - toothed ring, 3 - infusion tube, 31 - infusion cylinder, 311 - liquid guide tube, 32 - connector, 4 - cleaning tube, 41 - universal joint, 42 - flushing groove, 43 - hook, 5 - pull rope, 50 - spring, 51 - pull rod, 52 - adjustment cap, 6 - magnet, 7 - material spraying tube, 70 - nozzle, 71 - material delivery tube, 72 - rotating plate, 73 - material delivery ring, 731 - material guide tube, 74 - storage tube, 75 - connecting tube. Detailed implementation manners

[0026] The present invention will be specifically described below with reference to the accompanying drawings. Embodiment 1

[0027] A disassembly-free cleaning device for a centrifugal pump, as Figures 1-6As shown in the figure, it includes a main housing 1, a rotating cylinder 2, a driving component, an infusion tube 3, a cleaning tube 4, a pulling rope 5 and a magnet 6; the rotating cylinder 2 is rotatably connected inside the main housing 1; a driving component is connected to the main housing 1; the driving component is connected to the rotating cylinder 2; an infusion tube 3 is fixedly connected inside the rotating cylinder 2; an infusion cylinder 31 is fixedly connected to the right side of the main housing 1; the right end of the infusion tube 3 is connected to the infusion cylinder 31; a liquid guide tube 311 is connected to the upper side of the infusion cylinder 31; the left end of the infusion tube 3 is connected to a connector 32; a number of cleaning tubes 4 are arranged in a circumferential array around the connector 32; a number of flushing grooves 42 are respectively formed on the left side of each cleaning tube 4; all the flushing grooves 42 are arranged in a diffusion structure that expands from the side close to the connector 32 to the side far from the connector 32, so as to increase the effective flushing and cleaning area of the cleaning liquid ejected from the flushing grooves 42; a number of universal joint 41 structures are respectively provided on each cleaning tube 4; a pulling rope 5 passes through each cleaning tube 4; a spring 50 is fixedly connected between the end of each pulling rope 5 far from the connector 32 and the adjacent cleaning tube 4; a magnet 6 is fixedly connected to the end of each pulling rope 5 far from the connector 32; two hooks 43 are provided at the end of the cleaning tube 4 far from the connector 32; initially, the magnet 6 is hung between the two hooks 43, and a magnetic attraction force is generated between the magnet 6 and the hooks 43, so that the magnet 6 is initially magnetically fixed on the hooks 43; a pull rod 51 is slidably connected in the infusion tube 3; the ends of all the pulling ropes 5 close to the connector 32 are fixedly connected to the pull rod 51; by pulling the pull rod 51, the pulling rope 5 can be controlled to draw the magnet 6 into the cleaning tube 4.

[0028] As Figure 2 and Figure 3 shown, the right end of the infusion tube 3 is screwed with an adjusting cap 52 through a threaded structure; the right end of the pull rod 51 is fixedly connected to the adjusting cap 52; when the adjusting cap 52 is screwed out to the right, the pull rod 51 can be driven to pull to the right through the adjusting cap 52, and the pull rod 51 can be kept in the state of being pulled to the right, without the operator having to hold the pull rod 51 after pulling the pull rod 51 to the right.

[0029] As Figure 2 shown, the driving component includes a motor 21, a spur gear 22 and a toothed ring 23; the motor 21 is fixedly connected to the main housing 1; the output shaft of the motor 21 is fixedly connected to the spur gear 22; the toothed ring 23 is fixedly connected to the outer surface of the rotating cylinder 2; the spur gear 22 meshes with the toothed ring 23.

[0030] The centrifugal pump flushing operation of this centrifugal pump disassembly-free cleaning device:[[]]END]]

[0031] First, the operator turns the adjustment cap 52 clockwise. The adjustment cap 52 drives the pull rod 51 to move to the right. The pull rod 51 pulls the pull rope 5, causing the spring 50 to compress. At the same time, the pull rope 5 pulls the magnet 6 away from the hook 43 and into the corresponding cleaning tube 4. Subsequently, the operator inserts the main housing 1 together with the rotating cylinder 2 and the infusion tube 3 into the centrifugal pump through the liquid inlet of the centrifugal pump, and makes the cleaning tubes 4 extend into each flow channel of the impeller of the centrifugal pump respectively. Since universal joints 41 are provided at multiple locations on the cleaning tube 4, the cleaning tube 4 can adapt to the flow channels of different impellers. During this process, the magnet 6 generates a magnetic suction force on the inner wall of the flow channel of the impeller. Since there is a cleaning tube 4 between the magnet 6 and the inner wall of the flow channel of the impeller, the magnetic suction force between the magnet 6 and the inner wall of the flow channel of the impeller is weak. Even if the cleaning tube 4 is attracted to closely adhere to the inner wall of the flow channel of the impeller under the action of the magnetic suction force between the magnet 6 and the inner wall of the flow channel of the impeller, when the operator pushes the cleaning tube 4 into the flow channel of the impeller, the cleaning tube 4 can still smoothly move along the inner wall of the flow channel of the impeller until the end of the cleaning tube 4 far from the connector 32 moves to the outer edge area of the flow channel of the impeller.

[0032] Subsequently, the operator turns the adjustment cap 52 counterclockwise. The adjustment cap 52 drives the pull rod 51 to move to the left. At the same time, the compressed spring 50 pushes the pull rope 5 towards the end of the cleaning tube 4 far from the connector 32, causing the pull rope 5 to push the magnet 6 back onto the hook 43 under the push of the spring 50. At this time, the magnet 6 closely adheres to the inner wall of the flow channel of the impeller, greatly increasing the magnetic suction force between the magnet 6 and the inner wall of the flow channel of the impeller. The cleaning tube 4 is tightly adsorbed in the inner wall of the flow channel of the impeller by the magnet 6.

[0033] After that, the operator connects the liquid guiding tube 311 to an external cleaning liquid delivery device, and connects the liquid outlet of the centrifugal pump to an external waste liquid drainage device. The external cleaning liquid delivery device transports cleaning liquid through the liquid guiding tube 311 to the infusion cylinder 31. The cleaning liquid enters each cleaning tube 4 along the infusion tube 3 and the connector 32. The cleaning liquid is sprayed out through each flushing groove 42 of the cleaning tube 4 inside the flow channel of the impeller of the centrifugal pump, continuously flushing the impeller of the centrifugal pump. At the same time, the output shaft of the motor 21 drives the spur gear 22 to rotate. The spur gear 22 meshes with the toothed ring 23 to drive the rotating cylinder 2 and the infusion tube 3 to rotate. The infusion tube 3 drives each cleaning tube 4 and the connected impeller of the centrifugal pump to rotate, causing the cleaning liquid flowing out from the flow channel of the impeller to flow through each area of the inner wall of the centrifugal pump housing in sequence. The cleaning liquid then flows out from the liquid outlet of the centrifugal pump into the external waste liquid drainage device, efficiently completing the cleaning work of the centrifugal pump. Embodiment 2

[0034] Based on Embodiment 1, as Figures 1-7As shown in the figure, a brushing assembly is commonly connected between the infusion tube 3 and all the cleaning tubes 4 in this embodiment; the brushing assembly is connected to the main housing 1; the brushing assembly includes a material conveying tube 71, a rotating piece 72, a material conveying ring 73, a material guiding tube 731, a material storage tube 74 and a scouring pipe fitting; a material conveying tube 71 is fixedly connected inside the infusion tube 3; a rotating piece 72 is fixedly connected to the right end of the infusion tube 3; a material conveying ring 73 is fixedly connected to the right side of the main housing 1 by bolts; the rotating piece 72 is rotatably connected to the material conveying ring 73; the right ends of all the material conveying tubes 71 penetrate through the rotating piece 72 and are connected to the material conveying ring 73; a material guiding tube 731 is connected to the upper side of the material conveying ring 73; a material storage tube 74 is fixedly connected to the left end of the infusion tube 3 by bolts; the left ends of all the material conveying tubes 71 are connected to the material storage tube 74; a scouring pipe fitting is connected inside each cleaning tube 4; all the scouring pipe fittings are connected to the material storage tube 74; by conveying cleaning sand to the scouring pipe fittings, the inside of the centrifugal pump is scoured by the cleaning sand ejected from the scouring pipe fittings.

[0035] As Figures 4-7 shown, the scouring pipe fitting is composed of a material spraying pipe 7 and a connecting pipe 75; the material spraying pipe 7 is fixedly connected inside the cleaning tube 4; a number of spray heads 70 are connected to the side of the material spraying pipe 7 facing the adjacent flushing tank 42; two connecting pipes 75 are commonly connected between the material spraying pipe 7 and the material storage tube 74; each spray head 70 is respectively aligned with an adjacent flushing tank 42, so that the cleaning sand ejected from the spray head 70 directly passes through the flushing tank 42 and performs corresponding scouring work outward; the aperture of the discharge port of the spray heads 70 connected to the material spraying pipe 7 gradually decreases from the side close to the connecting pipe 75 to the side far from the connecting pipe 75, so that most of the cleaning sand in the material spraying pipe 7 is output outward from the spray heads 70 close to the center of the centrifugal pump impeller, improving the scouring effect of the cleaning sand on the centrifugal pump impeller.

[0036] The scouring work of the centrifugal pump of this non-disassembly cleaning device for centrifugal pumps:

[0037] When there is a lot of dirt remaining on the inner wall of the impeller of the centrifugal pump and the inner wall of the housing of the centrifugal pump, it is difficult to quickly wash the dirt in the centrifugal pump clean only by the cleaning liquid, and in-depth cleaning treatment of the centrifugal pump is required.

[0038] First, the operator connects the material guiding pipe 731 to the external cleaning sand conveying device. The external cleaning sand conveying device conveys cleaning sand through the material guiding pipe 731 to the material conveying ring 73. The cleaning sand successively enters each spraying pipe 7 along the material conveying pipe 71, the storage pipe 74, and the connecting pipe 75 respectively. The cleaning liquid is sprayed outward through each flushing groove 42 of the cleaning pipe 4 into the impeller flow channel of the centrifugal pump to continuously flush the impeller of the centrifugal pump. At the same time, the cleaning sand flows out through each nozzle 70 of the spraying pipe 7 into the cleaning liquid flowing in the cleaning pipe 4. The cleaning sand is sprayed outward with the cleaning liquid through the flushing groove 42 into the impeller flow channel of the centrifugal pump. At the same time, the output shaft of the motor 21 drives the spur gear 22 to rotate. The spur gear 22 meshes with the toothed ring 23 to drive the rotating cylinder 2 and the liquid delivery pipe 3 to rotate. The liquid delivery pipe 3 drives each cleaning pipe 4 and the centrifugal pump impeller connected thereto to rotate. The cleaning sand successively scours the inner wall of the impeller flow channel of the centrifugal pump and the inner wall of the casing of the centrifugal pump, so that the dirt remaining on its inner wall is effectively cleaned under the continuous scouring of the cleaning sand, improving the cleaning effect on the centrifugal pump. Since the cleaning sand uses spherical particles, when the cleaning sand flows through the inner wall of the impeller flow channel of the centrifugal pump and the inner wall of the casing of the centrifugal pump, the phenomenon of scratching its inner wall will not occur. Embodiment 3

[0039] On the basis of Embodiment 2, as Figures 1-7 shown, a sealing flange 11 is screwed on the outer surface of the main housing 1 of this embodiment through a threaded structure.

[0040] After the operator inserts the main housing 1 together with the rotating cylinder 2 and the liquid delivery pipe 3 into the centrifugal pump from the liquid inlet of the centrifugal pump, the operator rotates the sealing flange 11 counterclockwise to make the sealing flange 11 closely adhere to the flange of the liquid inlet of the centrifugal pump, so that the liquid inlet of the centrifugal pump is blocked by the sealing flange 11, realizing that during the above-mentioned flushing work on the centrifugal pump, the liquid inlet of the centrifugal pump is not likely to leak, ensuring the continuous and stable progress of the flushing work of the centrifugal pump.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A disassembly-free cleaning device for a centrifugal pump, comprising: a main housing (1); A rotating cylinder (2) is rotatably connected inside the main housing (1); a driving assembly for driving the rotating cylinder (2) to rotate is connected to the main housing (1); a liquid delivery pipe (3) is fixedly connected inside the rotating cylinder (2); a liquid delivery cylinder (31) is fixedly connected to the right side of the main housing (1); the right end of the liquid delivery pipe (3) is connected to the liquid delivery cylinder (31); a liquid guide pipe (311) is connected to the upper side of the liquid delivery cylinder (31); It is characterized in that: It further includes a connector (32); The left end of the liquid delivery pipe (3) is connected to a connector (32); a plurality of cleaning pipes (4) are arranged in a circumferential array around the connector (32); a flushing groove (42) structure is provided on the left side of the cleaning pipe (4); a universal joint (41) structure is provided on the cleaning pipe (4); a pull rope (5) penetrates through the cleaning pipe (4); a spring (50) is fixedly connected between the pull rope (5) and the adjacent cleaning pipe (4); a magnet (6) is fixedly connected to each end of the pull rope (5) away from the connector (32); a pull rod (51) is slidably connected in the liquid delivery pipe (3); one end of the pull rope (5) close to the connector (32) is fixedly connected to the pull rod (51).

2. The non-dismantling cleaning device for a centrifugal pump according to claim 1, characterized in that: All the flushing grooves (42) are arranged in a diffusion structure that expands from the side close to the connector (32) to the side away from the connector (32).

3. The non-dismantling cleaning device for a centrifugal pump according to claim 1, wherein: The right end of the liquid delivery pipe (3) is screwed with an adjusting cap (52) through a threaded structure; the right end of the pull rod (51) is fixedly connected to the adjusting cap (52).

4. The non-disassembly cleaning device for a centrifugal pump according to claim 1, characterized in that: Two hooks (43) are provided at the end of the cleaning pipe (4) away from the connector (32); the magnet (6) is initially hung between the two hooks (43).

5. The non-disassembly cleaning device for a centrifugal pump according to claim 1, characterized in that: The driving assembly includes a motor (21); A motor (21) is installed on the main housing (1); a spur gear (22) is fixedly connected to the output shaft of the motor (21); a toothed ring (23) is fixedly connected to the outer surface of the rotating cylinder (2); the spur gear (22) meshes with the toothed ring (23).

6. The non-disassembly cleaning device for a centrifugal pump according to claim 1, wherein: A brushing assembly is commonly connected between the liquid delivery pipe (3) and all the cleaning pipes (4); the brushing assembly is connected to the main housing (1); the brushing assembly includes a material delivery pipe (71); Not less than one material delivery pipe (71) is fixedly connected inside the liquid delivery pipe (3); a rotating piece (72) is fixedly connected to the right end of the liquid delivery pipe (3); a material delivery ring (73) is fixedly connected to the right side of the main housing (1); the rotating piece (72) is rotatably connected to the material delivery ring (73); the right end of the material delivery pipe (71) penetrates through the rotating piece (72) and is connected to the material delivery ring (73); a material guide pipe (731) is connected to the upper side of the material delivery ring (73); a storage pipe (74) is fixedly connected to the left end of the liquid delivery pipe (3); the left end of the material delivery pipe (71) is connected to the storage pipe (74); a flushing pipe fitting is connected inside the cleaning pipe (4); the flushing pipe fitting is connected to the storage pipe (74).

7. The non-disassembly cleaning device for a centrifugal pump according to claim 6, characterized in that: The flushing pipe fitting is composed of a spraying pipe (7) and a connecting pipe (75); A spraying pipe (7) is fixedly connected inside the cleaning pipe (4); a spray head (70) is connected to the side of the spraying pipe (7) facing the adjacent flushing groove (42); a connecting pipe (75) is commonly connected between the spraying pipe (7) and the storage pipe (74).

8. The non-dismantling cleaning device for a centrifugal pump according to claim 7, characterized in that: Each spray head (70) is respectively aligned with an adjacent flushing groove (42).

9. The non-disassembly cleaning device for a centrifugal pump according to claim 7, characterized in that: The aperture diameter of the discharge port of the spray head (70) connected to the spray pipe (7) gradually decreases from the side close to the connecting pipe (75) to the side far from the connecting pipe (75).

10. A disassembly-free cleaning device for a centrifugal pump according to any one of claims 1-9, characterized in that: A sealing flange (11) is screwed onto the outer surface of the main housing (1) through a threaded structure.

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