Double-outlet vertical axial flow pump

Abstract

A double-outlet vertical axial flow pump is arranged between an inland river gate and an outer river gate and comprises a water inlet horn, a guide vane body, a pump support and a water outlet elbow pipe are sequentially installed above the water inlet horn, a lower guide bearing part is connected into the guide vane body, and the upper end of the water outlet elbow pipe is connected with an upper guide bearing part. A pump shaft is arranged between the lower guide bearing part and the upper guide bearing part in a penetrating mode, the bottom of the pump shaft penetrates through the lower guide bearing part to be connected with a rotor part, two outlets are formed in the upper portion of the water outlet bent pipe, one outlet is connected with a water diversion pipe, the water diversion pipe faces an inland river gate, and a water diversion valve is arranged on the water diversion pipe. The other outlet of the water outlet elbow pipe is connected with a flood drainage pipe, the flood drainage pipe faces the outer river gate, and a flood drainage valve is arranged on the flood drainage pipe. Compared with the prior art, the double-outlet vertical axial flow pump has the advantages that the water outlet bend is of a double-outlet structure and is used in cooperation with the valve, and the two functions of flood drainage and water diversion can be achieved at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a double-outlet vertical axial flow pump. Background Art

[0002] Vertical axial flow pumps have large flow rates and low lifts and are generally used in drainage applications. During flood season, the water from the inner river side is forced to drain to the outer river side to achieve drainage. However, the pump can only transport the medium in one direction. In some applications, in addition to drainage during the flood season, the pump station also needs to divert water from the outer river side to the inner river side during the dry season. Therefore, it is necessary to invent a vertical axial flow pump that can both drain and divert water. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a double-outlet vertical axial flow pump in view of the deficiencies of the above-mentioned prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A double-outlet vertical axial flow pump is arranged between the inland river gate and the outer river gate. The double-outlet vertical axial flow pump includes an inlet horn, a guide vane body, a pump support and an outlet elbow pipe installed in sequence above the inlet horn, the guide vane body is connected to the lower guide bearing part, the upper end of the outlet elbow is connected to the upper guide bearing part, a pump shaft is passed through the lower guide bearing part and the upper guide bearing part, the bottom of the pump shaft passes through the lower guide bearing part and is connected to the rotor part, two outlets are provided above the outlet elbow, one of the outlets is connected to a water diversion pipe, the water diversion pipe faces the inland river gate, and a water diversion valve is provided on the water diversion pipe, and the other outlet on the outlet elbow is connected to a drainage pipe, the drainage pipe faces the outer river gate, and a drainage valve is provided on the drainage pipe.

[0006] Furthermore, a water guide cone is installed below the rotor part.

[0007] Furthermore, the upper end of the pump shaft passes through the upper guide bearing part and is connected with a sealing filler part and a coupling.

[0008] Furthermore, a mounting flange is provided on the outer side of the pump support.

[0009] Compared with the prior art, the utility model is a double-outlet vertical axial flow pump, the outlet bend of which adopts a double-outlet structure and is used in conjunction with a valve to simultaneously meet the two functions of drainage and water diversion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional view of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the utility model installed between the inner river gate and the outer river gate;

[0012] Among them, 1. Water inlet horn, 2. Guide vane body, 3. Pump support, 4. Water outlet elbow, 5. Lower guide bearing part, 6. Upper guide bearing part, 7. Pump shaft, 8. Rotor part, 9. Water guide cone, 10. Outlet 1, 11. Outlet 2, 12. Water diversion pipe, 13. Water diversion valve, 14. Drain pipe, 15. Drain valve, 16. Mounting flange, 17. Sealing packing part, 18. Coupling, 19. Motor, 20. Inland river gate, 21. Outer river gate. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below.

[0014] like Figure 1 and Figure 2 As shown, a double-outlet vertical axial flow pump includes an inlet horn 1, a guide vane body 2, a pump support 3 and a water outlet elbow 4 are installed in sequence above the water inlet horn 1, the guide vane body 2 is connected to a lower guide bearing part 5, the upper end of the water outlet elbow 4 is connected to an upper guide bearing part 6, the lower guide bearing part 5 includes a lower guide bearing seat, the lower guide bearing seat is connected to the guide vane body 2, the upper guide bearing part 6 includes an upper guide bearing seat, the upper guide bearing seat is connected to the water outlet elbow, guide bearings are provided in the lower guide bearing seat and the upper guide bearing seat, a pump shaft 7 is passed through the lower guide bearing part 5 and the upper guide bearing part 6, the pump shaft 7 The bottom is connected to the rotor part 8 through the lower guide bearing part 5. The rotor part 8 includes a hub, which is mounted on the pump shaft 7 through a key. The outer side of the hub is connected to the impeller blade. A water guide cone 9 is installed below the rotor part 8, and the water guide cone 9 is mounted on the hub. Outlet 10 and outlet 2 11 are provided above the outlet elbow 4. Outlet 10 and outlet 2 11 are respectively facing the two sides of the pump, wherein outlet 10 is connected to a water diversion pipe 12, and a water diversion valve 13 is provided on the water diversion pipe 12. Outlet 2 11 of the outlet elbow 4 is connected to a drainage pipe 14, and a drainage valve 15 is provided on the drainage pipe 14.

[0015] A mounting flange 16 is provided on the outside of the pump support 3. When the double-outlet vertical axial flow pump is installed, the double-outlet vertical axial flow pump is installed in the pump room through the mounting flange 16. The water inlet horn 1 on the double-outlet vertical axial flow pump is located below the pump room and is in contact with the medium. The upper end of the pump shaft 7 passes through the upper guide bearing part 6 and is connected with a sealing packing part 17 and a coupling 18. A sealing packing is provided in the sealing packing part 17. The coupling 18 is connected to a motor 19 for driving the pump in the pump room. The double-outlet vertical axial flow pump is arranged between the inland river gate 20 and the outer river gate 21, wherein the water diversion pipe 12 on the double-outlet vertical axial flow pump faces the outlet of the inland river gate 19, and the drainage pipe 14 faces the outlet of the outer river gate.

[0016] During the flood season, the outer river gate 21 and the water diversion valve 13 are closed, and the inner river gate 20 and the drainage valve 15 are opened. The axial flow pump will force the water on the inner river side to the outer river side along the drainage arrow in the figure to achieve the drainage function; during the dry season, the inner river gate 20 and the drainage valve 15 are closed, and the outer river gate 21 and the water diversion valve 13 are opened. The axial flow pump can divert the water on the outer river side to the inner river side along the diversion arrow in the figure to achieve the water diversion function.

[0017] The present invention is not limited to the embodiments described. Those skilled in the art may make some modifications or changes without departing from the spirit or scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A double-outlet vertical axial flow pump, arranged between the inner river gate and the outer river gate, characterized in that: A double-outlet vertical axial flow pump includes an inlet horn, a guide vane body, a pump support and an outlet elbow pipe installed in sequence above the inlet horn, the guide vane body is connected to the lower guide bearing part, the upper end of the outlet elbow is connected to the upper guide bearing part, a pump shaft is passed through the lower guide bearing part and the upper guide bearing part, the bottom of the pump shaft passes through the lower guide bearing part and is connected to the rotor part, two outlets are provided above the outlet elbow, one of the outlets is connected to a water diversion pipe, the water diversion pipe faces the inland river gate, and a water diversion valve is provided on the water diversion pipe, and the other outlet on the outlet elbow is connected to a drainage pipe, the drainage pipe faces the outer river gate, and a drainage valve is provided on the drainage pipe.

2. A double-outlet vertical axial flow pump according to claim 1, characterized in that: A water guide cone is installed below the rotor part.

3. A double-outlet vertical axial flow pump according to claim 2, characterized in that: The upper end of the pump shaft passes through the upper guide bearing part and is connected with a sealing filler part and a coupling.

4. A double-outlet vertical axial flow pump according to claim 3, characterized in that: A mounting flange is provided on the outer side of the pump support.

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