CN215521383U

CN215521383U - Volute of amphibious pump

Info

Publication number: CN215521383U
Application number: CN202122040752.9U
Authority: CN
Inventors: 李宗顺; 张军; 王欣
Original assignee: Fujian Haiqishi Pump Industry Co ltd
Current assignee: Fujian Haiqishi Pump Industry Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-14
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a volute of an amphibious pump, which belongs to the field of water pumps and comprises a water inlet pipe connector and an impeller mounting part, wherein an impeller cavity is arranged in the impeller mounting part, the water inlet pipe connector is fixed at one end of the impeller mounting part, a water inlet channel is arranged in the middle of the water inlet pipe connector, and the water inlet channel is communicated with the impeller cavity; the impeller comprises an impeller cavity, a water inlet channel, a water inlet hole, a connecting hole, a flow guide inclined plane and a projection, wherein the water inlet channel is arranged at the position where the water inlet channel is connected with the impeller cavity, one end of the water inlet channel, which is connected with a water inlet pipe, is provided with the connecting hole, a flow guide inclined plane is arranged between the water inlet hole and the connecting hole, the diameter of the water inlet hole is smaller than that of the connecting hole, and the projection of the plane where the connecting hole is located of the water inlet hole is internally tangent to the vertex of the connecting hole.

Description

Volute of amphibious pump

Technical Field

The utility model relates to the field of water pumps, in particular to a volute of an amphibious pump.

Background

The existing pumps are classified according to whether the motor can be immersed in water, and can be divided into a submersible pump and a pump generally installed above the liquid level. The submersible pump is an important device for pumping water from a deep well, extracts underground water to the ground surface, and is an essential pumping device for domestic water, mine emergency, industrial cooling, farmland irrigation, seawater lifting, ship load regulation and the like. Pumps typically mounted above the liquid level, such as: the centrifugal pump can vaporize water and the pump can not suck water when the atmospheric pressure and the water pressure are reduced to a certain value, and the water suction lift of the common centrifugal pump can not exceed nine meters. At the same time, the pump unit cannot be submerged under water. In the work of disaster relief and emergency rescue, the pump may need to be arranged in water to take water, and may also be flexibly installed and applied in some places inconvenient to install in water, and need to be arranged on land to take water, in addition, in order to guarantee the efficiency of emergency rescue, sometimes need to be applied to a water pipe pipeline system of remote transmission as the water pump, and in the activity of emergency rescue, uncertain factor is too many, the site environment is complicated, so the water pump carried is preferably amphibious, thus not only can save cost, but also can improve the efficiency of emergency rescue.

Chinese patent publication No. CN111946634A discloses a water-land dual-purpose supercharged water intake pump and a supercharged pump vehicle, the water-land dual-purpose supercharged water intake pump includes a controller, a pump body and a driving motor, a water outlet of the pump body is provided with a one-way valve and a liquid level sensor, the driving motor is provided with a current sensor for detecting the current value of the driving motor, the pump body is provided with a vacuum pump, the vacuum pump is used for pumping air in the pump body to form negative pressure in the pump body and pumping liquid to realize cooling of the driving motor, the vacuum pump is connected with an inlet pipe and an outlet pipe, the inlet pipe is communicated with the pump body, the outlet pipe is wound on the shell of the driving motor as a cooling pipe, the liquid level sensor and the current sensor, the selector switch and the driving motor are in signal connection with the controller, and the controller is used for receiving detection signals of the liquid level sensor and the liquid level sensor, then performing comparison calculation, and controlling the driving motor and the selector switch to perform corresponding actions according to comparison calculation results.

The existing volute generally adopts a bell mouth design, and water can flow downwards under the action of gravity, so that a gap is easily generated at a water inlet at the top, and bubbles are generated to influence the water inlet efficiency of a water pump.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide the volute of the amphibious pump, which can enable the water to be sucked horizontally stably, does not generate bubbles and has high water pumping efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a volute of an amphibious pump, which comprises a water inlet pipe connector and an impeller mounting part, wherein an impeller cavity is arranged in the impeller mounting part, the water inlet pipe connector is fixed at one end of the impeller mounting part, a water inlet channel is arranged in the middle of the water inlet pipe connector, and the water inlet channel is communicated with the impeller cavity; the impeller comprises an impeller cavity, a water inlet channel, a water inlet hole, a connecting hole, a flow guide inclined plane and a projection, wherein the water inlet channel is arranged at the position where the water inlet channel is connected with the impeller cavity, one end of the water inlet channel, which is connected with a water inlet pipe, is provided with the connecting hole, a flow guide inclined plane is arranged between the water inlet hole and the connecting hole, the diameter of the water inlet hole is smaller than that of the connecting hole, and the projection of the plane where the connecting hole is located of the water inlet hole is internally tangent to the vertex of the connecting hole.

The utility model has the preferable technical scheme that a water outlet flow channel pipe is arranged on the side surface of the impeller mounting part, and the water inlet pipe connector is vertical to the water outlet flow channel pipe.

The utility model has the preferable technical scheme that the impeller cavity and the water inlet hole are coaxially arranged, the impeller cavity is internally provided with a driving impeller, and the water suction end of the driving impeller is over against the water inlet hole.

The utility model preferably adopts the technical scheme that the water outlet flow passage pipe is arranged at the periphery of the impeller cavity, and the middle part of the water outlet flow passage pipe is provided with a separation rib plate so that water flow discharged by the impeller cavity respectively enters two sides of the separation rib plate.

The utility model has the preferable technical scheme that a guide fin is arranged in the middle of the lower side of the guide inclined plane, the guide fin is arranged along the vertical direction, a guide round angle is arranged at the top end of the guide fin, and the top end of the guide fin is positioned at the center of the water inlet.

The utility model has the preferable technical scheme that two sides of the bottom end of the water inlet pipe connector are provided with supporting frames.

The utility model has the beneficial effects that:

Drawings

Figure 1 is a schematic diagram of the front side of a volute of an amphibious pump provided in a particular embodiment of the utility model;

figure 2 is a schematic diagram of the rear side of a volute of an amphibious pump provided in a particular embodiment of the utility model;

figure 3 is a schematic cross-sectional view of a volute of an amphibious pump provided in a particular embodiment of the utility model.

In the figure:

2. an outlet runner pipe; 3. an impeller mounting portion; 4. a water inlet pipe connector; 5. driving the impeller; 21. a partition rib plate; 41. a water inlet channel; 411. connecting holes; 412. a diversion bevel; 413. a water inlet hole; 414. a guide fin; 4141. a guide fillet; 43. a support frame; 44. an impeller cavity.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 3, the present embodiment provides a volute of an amphibious pump, which includes a water inlet pipe connector 4 and an impeller mounting portion 3, wherein an impeller cavity 44 is provided inside the impeller mounting portion 3, the water inlet pipe connector 4 is fixed at one end of the impeller mounting portion 3, a water inlet passage 41 is provided in the middle of the water inlet pipe connector 4, and the water inlet passage 41 is communicated with the impeller cavity 44; when water is pumped, the water inlet pipe is connected to the water inlet pipe connector 4, and water is sucked into the impeller cavity 44 after passing through the water inlet channel 41. The position that inhalant canal 41 and impeller cavity 44 meet is provided with inlet opening 413, inhalant canal 41 and the one end of advancing water piping connection are provided with connecting hole 411, inlet opening 413 with be provided with water conservancy diversion inclined plane 412 between the connecting hole 411, inlet opening 413 diameter is less than connecting hole 411 diameter, inlet opening 413 is in connecting hole 411 place planar projection with connecting hole 411 summit is tangent mutually. When the volute is used, the volute is placed at the top, the top of the water inlet 413 is flush with the top of the connecting hole 411, the top of the water inlet 413 is located on the same horizontal plane, the lower end of the connecting hole 411 is far lower than the lower end of the water inlet 413, and water flow enters the water inlet 413 after being lifted by the flow guide inclined plane 412. The top of the impeller cavity 44 is flush, so that water can flow into the impeller cavity in a flush manner, and the top surface is not easy to generate a cavity to generate bubbles, so that the water flow is sucked into the impeller cavity 44 efficiently.

Preferably, the side of the impeller mounting part 3 is provided with a water outlet flow channel pipe 2, and the water inlet pipe connector 4 is perpendicular to the water outlet flow channel pipe 2. The water inlet direction and the water outlet direction are perpendicular to each other, so that the problem that water backflow is not easy to occur in the water inlet direction to affect water absorption is solved, and water flow can stably enter the impeller cavity 44 all the time.

In order to ensure that water flow smoothly enters the impeller cavity 44, the impeller cavity 44 is coaxially arranged with the water inlet hole 413, a driving impeller 5 is installed in the impeller cavity 44, and a water suction end of the driving impeller 5 is opposite to the water inlet hole 413. The water inlet direction of the impeller cavity 44 is parallel to the axis of the water inlet hole 413, and the flow guiding inclined plane 412 between the top surface of the water inlet hole 413 and the top surface of the connecting hole 411 is also parallel to the axis of the water inlet hole 413, so that the water flow at the top can be straightly sucked into the impeller cavity 44, and the water flow is stable and efficient.

Preferably, the outlet channel pipe 2 is disposed at the periphery of the impeller cavity 44, and the partition rib 21 is disposed at the middle of the outlet channel pipe 2, so that the water flow discharged from the impeller cavity 44 enters two sides of the partition rib 21 respectively. After being sucked into the impeller cavity 44, the water is pushed into the peripheral water outlet channel pipe 2 under the action of the driving impeller 5.

Preferably, a guide fin 414 is disposed at a middle position of a lower side of the guide inclined plane 412, the guide fin 414 is disposed along a vertical direction, a guide rounded corner 4141 is disposed at a top end of the guide fin 414, and the top end of the guide fin 414 is located at a central position of the water inlet 413. Because the inlet hole 413 is located at the top, the fall between the bottom end of the inlet hole 413 and the bottom end of the connecting hole 411 is large, so that when water is gathered towards the inlet hole 413, problems such as vortex, turbulent flow and the like are easily generated, and the water inlet efficiency is affected, and the guide fin 414 enables the water to have a guiding function, so that the water can stably enter the impeller cavity 44.

Preferably, support frames 43 are arranged on two sides of the bottom end of the water inlet pipe connector 4. In use, the support 43 is placed on the ground so that the inlet 413 is at the top.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A volute for an amphibious pump, characterized by:

the water inlet pipe comprises a water inlet pipe connector (4) and an impeller mounting part (3), wherein an impeller cavity (44) is arranged inside the impeller mounting part (3), the water inlet pipe connector (4) is fixed at one end of the impeller mounting part (3), a water inlet channel (41) is arranged in the middle of the water inlet pipe connector (4), and the water inlet channel (41) is communicated with the impeller cavity (44);

the position that inlet channel (41) with impeller cavity (44) meets is provided with inlet opening (413), inlet channel (41) and inlet connection's one end are provided with connecting hole (411), inlet opening (413) with be provided with water conservancy diversion inclined plane (412) between connecting hole (411), inlet opening (413) diameter is less than connecting hole (411) diameter, inlet opening (413) is in the planar projection of connecting hole (411) place with connecting hole (411) summit is tangent mutually.

2. The volute for an amphibious pump of claim 1, wherein:

the side of impeller installation portion (3) is provided with out water runner pipe (2), inlet tube connector (4) with go out water runner pipe (2) mutually perpendicular.

3. A volute for an amphibious pump according to claim 2, wherein:

the impeller cavity (44) and the water inlet hole (413) are coaxially arranged, a driving impeller (5) is installed in the impeller cavity (44), and the water suction end of the driving impeller (5) is opposite to the water inlet hole (413).

4. A volute for an amphibious pump according to claim 3, wherein:

the water outlet flow channel pipe (2) is arranged on the periphery of the impeller cavity (44), and the middle of the water outlet flow channel pipe (2) is provided with a separation rib plate (21) so that water flow discharged by the impeller cavity (44) enters the two sides of the separation rib plate (21) respectively.

5. The volute for an amphibious pump of claim 1, wherein:

the middle position of the lower side of the flow guide inclined plane (412) is provided with a flow guide fin (414), the flow guide fin (414) is arranged along the vertical direction, the top end of the flow guide fin (414) is provided with a guide fillet (4141), and the top end of the flow guide fin (414) is positioned at the central position of the water inlet hole (413).

6. The volute for an amphibious pump of claim 1, wherein:

support frames (43) are arranged on two sides of the bottom end of the water inlet pipe connector (4).