High-lift vertical pump

Abstract

A high-lift vertical pump comprises a vertically-arranged suction and discharge support, a bearing box body is vertically arranged above a connecting disc, and a second cooling cavity and a first cooling cavity which are used for cooling a second bearing and a first bearing are formed in the upper end and the lower end of the bearing box body respectively, so that the temperature generated when the second bearing and the first bearing rotate at a high speed can be rapidly reduced, and the temperature of the second bearing and the first bearing is reduced; the rotating speed of the pump is increased, the lift of the pump is increased, the application range is widened, meanwhile, the outer portion of the suction and discharge support is in a barrel shape and large in diameter, the suction and discharge support is connected to the bearing box body through tongue-and-groove fit of the connecting disc, the rigidity of the bearing box body is improved, and vibration formed in the transmission process is relieved and controlled.

Description

Technical Field

[0001] The utility model patent relates to the field of fluid machinery, in particular to a high-lift vertical pump. Technical Background

[0002] Currently, the existing vertical pumps have low speeds, narrow head ranges, and limited application scenarios, while the horizontal pumps have a large installation area and require a larger installation space and foundation, which increases the installation cost. At the same time, the existing vertical pumps vibrate and make a lot of noise during operation, affecting the working environment. Summary of the invention

[0003] The purpose of this utility model patent is to provide a high-lift vertical pump, including a vertically arranged suction and discharge support, a suction end and a discharge end are respectively arranged on both sides of the suction and discharge support, a connecting plate is arranged above the suction and discharge, a bearing box is vertically arranged above the connecting plate, a motor connecting frame is vertically arranged on the bearing box, a motor connected to the motor connecting frame is arranged, a mechanical seal for sealing the fluid is arranged in the suction and discharge support, the upper end of the mechanical seal is installed on the connecting plate, and a bearing box is horizontally arranged in the cavity below the bearing box. There is a rotating hub, the bottom of the rotating hub is connected to an impeller for increasing fluid speed, the lower end of the impeller is connected to a dynamic ring seat for driving a mechanical seal to rotate, the lower end of the dynamic ring seat is inserted into the mechanical seal, a Pitot tube for pressurizing the fluid is inserted into the impeller, the upper end of the Pitot tube is arranged in the rotating hub and the impeller, and the lower end of the Pitot tube is installed in the suction and discharge support through a stopper, a locking nut for fixing the Pitot tube on the suction and discharge support is threadedly connected at the bottom of the Pitot tube, and a guide body for guiding the flow of liquid is installed on the suction and discharge support below the locking nut.

[0004] As a further technical solution, a main shaft for driving the hub to rotate is vertically installed in the bearing box, and the main shaft is installed in the bearing box through bearing one and bearing two. The lower end of the main shaft is connected to the hub, and the upper end of the main shaft is provided with a coupling for transmitting torque. The upper end of the coupling is provided on the motor, and cooling cavity two and cooling cavity one are respectively provided at the upper and lower ends of the bearing box for cooling bearing two and bearing one.

[0005] Beneficial effects of this utility model patent:

[0006] 1. By adding cooling cavity 2 and cooling cavity 1, it is helpful to quickly reduce the temperature generated by bearing 2 and bearing 1 during high-speed rotation, which is helpful to increase the speed of the pump, thereby increasing the pump head and expanding the application range.

[0007] 2. The suction and discharge support is cylindrical in shape and has a large diameter. It is connected to the bearing housing through the tongue-and-groove joint of the connecting plate, which improves the rigidity of the bearing housing and helps to alleviate and control the vibration generated during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the structure of the utility model patent.

[0009] In the figure, 1 is a suction and discharge support, 2 is a flow guide, 3 is a locking nut, 4 is a mechanical seal, 5 is a connecting plate, 6 is a moving ring seat, 7 is an impeller, 8 is a pitot tube, 9 is a rotating hub, 10 is a bearing 1, 11 is a bearing housing, 12 is a motor connecting frame, 13 is a bearing 2, 14 is a main shaft, 15 is a coupling, 16 is a motor, 17 is a cooling cavity 2, 18 is an oil filling hole, and 19 is a cooling cavity 1. DETAILED DESCRIPTION

[0010] The utility model patent is further described below in conjunction with the accompanying drawings:

[0011] like Figure 1 A high-lift vertical pump comprises a vertically arranged suction and discharge support 1, a suction end and a discharge end are respectively arranged on both sides of the suction and discharge support, a connecting plate 5 is arranged above the suction and discharge support 1, a bearing box body 11 is vertically arranged above the connecting plate 5, a motor connecting frame 12 is vertically arranged on the bearing box body 11, and a motor 16 connected to the motor connecting frame 12 is arranged on the motor connecting frame 12.

[0012] A mechanical seal 4 for sealing the fluid is installed in the suction and discharge support 1, and the upper end of the mechanical seal 4 is installed on the connecting plate 5. A rotating hub 9 is horizontally arranged in the cavity below the bearing housing 11. An impeller 7 for increasing the speed of the fluid is connected to the bottom of the rotating hub 9, and a dynamic ring seat 6 for driving the mechanical seal 4 to rotate is connected to the lower end of the impeller 7. The lower end of the dynamic ring seat 6 is inserted into the mechanical seal 4, and a Pitot tube 8 for fluid pressurization is inserted into the impeller 7. The upper end of the Pitot tube 8 is placed in the rotating hub 9 and the impeller 7, and the lower end thereof is installed in the suction and discharge support 1 through a stopper. A locking nut 3 for fixing the Pitot tube 8 on the suction and discharge support 1 is threadedly connected at the bottom of the Pitot tube 8, and a guide body 2 for guiding the flow direction of the liquid is installed on the suction and discharge support 1 below the locking nut 3.

[0013] A main shaft 14 for driving the rotating hub 9 to rotate is vertically installed in the bearing housing 11. The main shaft 14 is installed in the bearing housing 11 through bearing 10 and bearing 2 13. The lower end of the main shaft 14 is connected to the rotating hub 9, and the upper end of the main shaft 14 is sleeved with a coupling 15 for transmitting torque, and the upper end of the coupling 15 is sleeved on the motor 16. A cooling cavity 2 17 and a cooling cavity 1 19 are respectively provided at the upper and lower ends of the bearing housing 11 for cooling bearing 2 13 and bearing 1 10 respectively.

Claims

1. A high-lift vertical pump, comprising a vertically arranged suction and discharge support (1), a suction end and a discharge end are respectively arranged on both sides of the suction and discharge support, a connection plate (5) is arranged above the suction and discharge support (1), a bearing housing (11) is vertically arranged above the connection plate (5), a motor connecting frame (12) is vertically arranged on the bearing housing (11), and a motor (16) connected to the motor connecting frame (12) is arranged on the motor connecting frame (12), characterized in that: A mechanical seal (4) for sealing a fluid is arranged in the suction and discharge support (1), the upper end of the mechanical seal (4) is mounted on a connecting plate (5), a rotating hub (9) is horizontally arranged in a cavity below the bearing housing (11), the bottom of the rotating hub (9) is connected to an impeller (7) for increasing the speed of the fluid, the lower end of the impeller (7) is connected to a dynamic ring seat (6) for driving the mechanical seal (4) to rotate, the lower end of the dynamic ring seat (6) is inserted into the mechanical seal (4), a pitot tube (8) for increasing the pressure of the fluid is inserted into the impeller (7), the upper end of the pitot tube (8) is arranged in the rotating hub (9) and the impeller (7), the lower end of the pitot tube (8) is mounted in the suction and discharge support (1) through a stopper, a locking nut (3) for fixing the pitot tube (8) on the suction and discharge support (1) is threadedly connected at the bottom of the pitot tube (8), and a guide body (2) for guiding the flow direction of the liquid is installed on the suction and discharge support (1) below the locking nut (3).

2. A high-lift vertical pump according to claim 1, characterized in that: A main shaft (14) for driving the rotating hub (9) to rotate is vertically installed in the bearing housing (11). The main shaft (14) is installed in the bearing housing (11) through a bearing 1 (10) and a bearing 2 (13). The lower end of the main shaft (14) is connected to the rotating hub (9). The upper end of the main shaft (14) is sleeved with a coupling (15) for transmitting torque. The upper end of the coupling (15) is sleeved on the motor (16). A cooling cavity 2 (17) and a cooling cavity 1 (19) for cooling the bearing 2 (13) and the bearing 1 (10) are respectively provided at the upper and lower ends of the bearing housing (11).

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