Vertical pump structure

Abstract

The utility model relates to a vertical pump structure which comprises a vertical pump, a suction pipe fixedly installed at a liquid inlet of the vertical pump, installation holes formed in the side wall of the bottom of the suction pipe at intervals in the circumferential direction, and side filter screens fixedly installed on the installation holes. The side filter screen and the bottom filter screen are both of an integrated structure with the suction pipe, the situation that the side filter screen and / or the bottom filter screen fall off due to vibration and slurry corrosion in the operation process of the vertical pump can be prevented, slurry or sludge can smoothly enter the suction pipe, and for the working condition that the bottom of a pit or a pool is provided with a shake-stopping groove, the vertical pump can be prevented from falling off. The bottom of the suction pipe can be hollowed out, the side wall of the suction pipe is provided with the side filter screen, the filter screen is inserted into the shake stopping groove, shake of the filter screen in slurry is prevented, and the phenomenon that the pump is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to a vertical pump structure and belongs to the technical field of vertical pump filtration. Background Art

[0002] Vertical pumps are widely used in coal washing, metallurgy, power plant desulfurization, steel mills and other projects. The slurry transported by the vertical pump contains a part of fixed particles. The size of the particles in the transported slurry is different due to different user working conditions. When passing through the lower filter, it is necessary to ensure that it has sufficient rigidity and strength, and to leave enough gaps to ensure the passability of the particles. In the case of a relatively deep pit, the filter is installed at the suction port of the vertical pump through bolts, nuts and flat washers to pump out the slurry in the pit. The filter is suspended in the slurry and lacks a sway stop device. When the pump is running, the lower filter is prone to vibration. In addition, the corrosiveness of the slurry causes the bolts and nuts connecting the filter to loosen and rust, causing the lower filter to fall off. Because the lower filter is immersed in the slurry, it is not easy to find after the lower filter falls off, which eventually causes damage to the pump and increases the maintenance cost. If the user has a sway stop groove at the bottom of the pit, if the lower filter is directly inserted into the sway stop groove, the lower filter will be blocked by mud residue and cannot absorb the slurry, which will eventually cause the vertical pump to fail to work properly. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a vertical pump structure which can prevent the filter screen from falling off and being blocked.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model comprises a vertical pump, a suction pipe fixedly mounted on a liquid inlet of the vertical pump, mounting holes spaced along a circumferential direction on a side wall at the bottom of the suction pipe, and a side filter fixedly mounted on the mounting hole.

[0006] The mounting hole of the utility model is arc-shaped, and its cross section is square. The side filter screen is a steel bar A which is fixed on the mounting hole in parallel with a gap.

[0007] The utility model fixes a steel bar B at a liquid inlet at the bottom of a suction pipe along a radial gap to form a bottom filter screen.

[0008] The suction pipe of the utility model is a steel tube, a flange is fixedly installed on the top of the suction pipe, and the flange is connected with the pump body of the vertical pump through bolts and nuts.

[0009] The bottom surface of the vertical bottom filter screen of the utility model is fixedly installed with a steel bar C in the middle of a suction pipe, two ends of the steel bar C are fixed to the inner wall of the suction pipe, and the top surface of the steel bar C is fixed to the bottom surface of the bottom filter screen.

[0010] The positive effects of the utility model are as follows: the side filter and the bottom filter of the utility model are both integrated with the suction pipe, which can prevent the side filter and / or the bottom filter from falling off due to vibration of the vertical pump during operation and corrosion of the slurry, and allow the slurry or mud to enter the suction pipe smoothly. For working conditions where there is a sway-stop groove at the bottom of a pit or pool, the utility model in which the bottom of the suction pipe is hollowed out and the side filter is installed on the side wall can be directly inserted into the sway-stop groove, preventing the filter from swaying in the slurry and preventing the pump from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Attached Figure 2 This is a schematic diagram of the structure of the side filter screen installed on the side wall of the utility model;

[0013] Attached Figure 3 This is a schematic diagram of the structure of the bottom filter screen installed at the bottom inlet of the utility model;

[0014] Attached Figure 4 This is a schematic diagram of the structure of the side filter screen installed on the side wall of the suction pipe of the utility model;

[0015] Attached Figure 5 This is a schematic diagram of the structure of the bottom filter screen installed at the bottom inlet of the suction pipe of the utility model;

[0016] Attached Figure 6 This is a schematic diagram of the installation structure of the steel bar C of the utility model. DETAILED DESCRIPTION

[0017] As attached Figure 1 , 2 As shown in Figure 4, the utility model includes a vertical pump 1, a suction pipe 2 fixedly mounted on the liquid inlet of the vertical pump, mounting holes 3 spaced apart along the circumferential direction on the bottom side wall of the suction pipe 2, and a side filter 4 fixedly mounted on the mounting hole 3; the number of the mounting holes 3 is 2-3; the mounting hole 3 is arc-shaped, and its cross-section along the axial direction of the suction pipe 2 is square, and the side filter 4 is a steel bar A5 welded in parallel with the mounting hole 3 at intervals; the side filter 4 is welded to the suction pipe 2 as a whole, and the side filter 4 is 200-300mm away from the bottom of the suction pipe, that is, the vertical distance between the bottom edge of the mounting hole 3 and the bottom surface of the suction pipe 2; this structure is suitable for the working condition where there is an anti-sway groove at the bottom of the pool, the suction pipe is directly inserted into the bottom of the anti-sway groove, the bottom of the groove blocks the bottom inlet of the suction pipe 2, and the filter is no longer welded at the bottom of the suction pipe, that is, the bottom of the suction pipe 2 is hollowed out.

[0018] As attached Figure 3 , 5As shown, the utility model welds steel bars B6 in parallel with the radial gap at the liquid inlet at the bottom of the suction pipe 2 to form a bottom filter screen 7, and the filter screen 4 is 50-100mm away from the bottom of the suction pipe; combined with the side filter screen 4, this structure is suitable for the working condition where there is no anti-sway groove at the bottom of the pit, and the bottom of the suction pipe 2 is at a certain distance from the bottom of the pool or the pit, ensuring that the vertical pump has suitable passability when conveying slurry.

[0019] The diameters of the steel bars A5 and B6 of the utility model and their applicable gap ranges are shown in the following table, in mm:

[0020] diameter φ6 φ8 φ10 Clearance range 7-15 16-18 19-51

[0021] As attached Figure 1 , 2 As shown in Figure 3, the suction pipe 2 of the utility model is a steel tube, and a flange 8 is fixedly installed on the top of the suction pipe 2. The flange 8 is connected to the pump body of the vertical pump 1 through bolts and nuts. Figure 6 As shown, as a further improvement, a steel bar C9 is fixedly installed on the bottom surface of the vertical bottom filter screen 7 in the middle of the suction pipe 2, both ends of the steel bar C9 are fixed to the inner wall of the suction pipe 2, and the top surface of the steel bar C9 is fixed to the bottom surface of the bottom filter screen 7 to strengthen the strength of the bottom filter screen 7; the structure of the steel bar C9 is the same as that of the steel bar B6.

[0022] The side filter screen 4 and the bottom filter screen 7 of the utility model are both integrated with the suction pipe 2, which can prevent the side filter screen 4 and / or the bottom filter screen 7 from falling off due to vibration of the vertical pump 1 during operation and corrosion of the slurry, and allow the slurry or mud to enter the suction pipe smoothly. For working conditions where there is a sway-stop groove at the bottom of a pit or pool, the utility model in which the bottom of the suction pipe 2 is hollowed out and the side filter screen 4 is installed on the side wall can be directly inserted into the sway-stop groove, thereby preventing the filter screen from swaying in the slurry and preventing the vertical pump 1 from being blocked.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical pump structure, characterized in that: The invention comprises a vertical pump (1), a suction pipe (2) fixedly mounted on a liquid inlet of the vertical pump, mounting holes (3) arranged at intervals along a circumferential direction on a side wall at the bottom of the suction pipe (2), and a side filter (4) fixedly mounted on the mounting hole (3); the side filter (4) and the suction pipe (2) are welded together as a whole.

2. A vertical pump structure according to claim 1, characterized in that: The mounting hole (3) is arc-shaped and has a square cross section. The side filter (4) is a steel bar A (5) fixed in parallel with the mounting hole (3) with a gap.

3. A vertical pump structure according to claim 2, characterized in that: A steel bar B (6) is fixed along a radial gap at the bottom liquid inlet of the suction pipe (2) to form a bottom filter screen (7), and the side filter screen (4) and the bottom filter screen (7) are both integrated with the suction pipe (2).

4. A vertical pump structure according to claim 1, 2 or 3, characterized in that: The suction pipe (2) is a steel tube, and a flange (8) is fixedly mounted on the top of the suction pipe (2). The flange (8) is connected to the pump body of the vertical pump (1) through bolts and nuts.

5. A vertical pump structure according to claim 3, characterized in that: A steel bar C (9) is fixedly installed on the bottom surface of the vertical bottom filter screen (7) in the middle of the suction pipe (2), the two ends of the steel bar C (9) are fixed to the inner wall of the suction pipe (2), and the top surface of the steel bar C (9) is fixed to the bottom surface of the bottom filter screen (7).

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