Suction and discharge dredging pump device

Abstract

The utility model relates to a suction and discharge dredging pump device which comprises an impeller, a bearing cylinder, an inlet pipe, an outlet pipe and a transmission shaft. An inlet of the impeller is connected with the inlet pipe, and an outlet of the impeller is connected with the outlet pipe; one end of the transmission shaft is connected with a driving motor, the other end of the transmission shaft is connected with the impeller, and the outer wall of the transmission shaft is connected with the bearing cylinder. The impeller comprises a shell and a blade set, the blade set is rotationally connected into the shell, and the transmission shaft penetrates through the shell to be connected with the blade set. An inlet of the impeller is connected with the inlet pipe through a first flange. And an outlet of the impeller is connected with the outlet pipe through a second flange. And the lower end of the impeller is connected with a support. The outer wall of the bearing cylinder is connected with a mounting plate used for being connected with external equipment. The utility model aims to provide the suction and discharge dredging pump device for overcoming the existing defects, and the overall construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a suction and discharge dredging pump device. Background Technology

[0002] Suctioning mud or water is mainly achieved through pressure difference. For example, in a common dredging pump, a low-pressure area is created at the pump inlet by the rotation of the impeller or the reciprocating motion of the piston. When the external pressure is higher than the pressure at the pump inlet, mud or water is drawn into the pump under the action of the pressure difference.

[0003] Similar to drinking a beverage through a straw, when you suck on a straw, the pressure inside your mouth decreases, and the external atmospheric pressure forces the beverage into the straw and into your mouth. The principle of sucking in mud is similar, except that the pressure difference is driven by a mechanical device.

[0004] Existing suction and discharge dredging pumps have inconsistent suction and discharge efficiencies under different working conditions, lacking specificity and affecting production efficiency. Therefore, a suction and discharge dredging pump device is proposed to address the above problems, which improves efficiency while reducing discharge distance. Utility Model Content

[0005] The purpose of this utility model is to overcome the existing defects and provide a suction and discharge dredging pump device, which improves the overall construction efficiency.

[0006] The technical solution to achieve the above objectives is: a suction and discharge dredging pump device, comprising an impeller, a bearing sleeve, an inlet pipe, an outlet pipe, and a drive shaft;

[0007] The impeller's inlet is connected to the inlet pipe, and its outlet is connected to the outlet pipe; one end of the drive shaft is connected to the drive motor, and the other end is connected to the impeller, with the outer wall of the drive shaft connected to the bearing cylinder.

[0008] Preferably, the impeller includes a housing and a blade assembly, the blade assembly being rotatably connected within the housing, and the drive shaft passing through the housing and connecting to the blade assembly.

[0009] Preferably, the impeller inlet is connected to the inlet pipe via a first flange.

[0010] Preferably, the outlet of the impeller is connected to the outlet pipe via a second flange.

[0011] Preferably, the lower end of the impeller is connected to a support.

[0012] Preferably, the outer wall of the bearing cylinder is connected to a mounting plate for connecting external equipment.

[0013] The beneficial effects of this utility model are: This suction and discharge dredging pump device, by setting a drive motor to drive the transmission shaft to rotate, the rotation of the transmission shaft drives the blade assembly to rotate, the rotation of the blade assembly creates a negative pressure inside the outer shell, so that the mud or water connected to the inlet pipe is sucked into the impeller, and as the impeller rotates, the mud is discharged from the outlet pipe. This device improves the overall construction efficiency of the dredging pump. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the suction and discharge dredging pump device of this utility model;

[0015] Figure 2 This is a cross-sectional view of the suction and discharge dredging pump device of this utility model;

[0016] Figure 3 This is a schematic diagram of the impeller of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the impeller of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection of the outlet pipe of this utility model;

[0019] Figure 6 This is a side view of the blade assembly of this utility model;

[0020] Figure 7 This is a detailed dimensional drawing of the blade of this utility model;

[0021] Figure 8 This is a power data sheet for the suction and discharge dredging pump device of this utility model.

[0022] In the diagram: 1. Impeller; 2. Bearing housing; 3. Inlet pipe; 4. Outlet pipe; 5. First flange; 6. Second flange; 7. Drive shaft; 8. Support; 9. Casing; 10. Mounting plate; 11. Blade assembly. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, a suction and discharge dredging pump device includes an impeller 1, a bearing housing 2, an inlet pipe 3, an outlet pipe 4, and a drive shaft 7. The inlet of the impeller 1 is connected to the inlet pipe 3, and the outlet is connected to the outlet pipe 4. One end of the drive shaft 7 is connected to a drive motor, and the other end is connected to the impeller 1. The outer wall of the drive shaft 7 is connected to the bearing housing 2. The impeller 1 includes a housing 9 and a blade assembly 11, which is rotatably connected inside the housing 9. The drive shaft 7 passes through the housing 9 and connects to the blade assembly 11. The inlet of the impeller 1 is connected to the inlet pipe 3 through a first flange 5. The outlet of the impeller 1 is connected to the outlet pipe 4 through a second flange 6.

[0026] Specifically, a support 8 is connected to the lower end of the impeller 1 for overall stability. A mounting plate 10 is connected to the outer wall of the bearing housing 2 for connecting external equipment.

[0027] Specifically, the drive motor drives the transmission shaft 7 to rotate, and the rotation of the transmission shaft 7 drives the blade assembly 11 to rotate. The rotation of the blade assembly 11 creates a negative pressure inside the outer casing 9, which causes the mud or water connected to the inlet pipe 3 to be sucked into the impeller 1. As the impeller 1 rotates, the mud is discharged from the outlet pipe 4. This device improves the overall construction efficiency of the dredging pump.

[0028] like Figure 6 , 7 As shown in Figure 8, blade group 11 reduces the blade tip radius by approximately 768.1 mm to lower the head. Simultaneously, the original impeller blade twist angle is changed to 173.72°, the tail blade flattening angle is increased to 6.85°, and the tail blade radius R70 is increased to promote fluid stability, reduce friction, and improve efficiency. Furthermore, the distance of the smooth straight section of the impeller inlet is increased by 69.5 mm to stabilize the flow field and improve efficiency. In summary, by optimizing the blade profile and changing the impeller shape, a short-pitch impeller is obtained, improving impeller efficiency. In conclusion, through technical modifications to the original impeller, the impeller efficiency is improved by 0.2 percentage points.

[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A suction and discharge dredging pump device, characterized in that, It includes an impeller (1), a bearing housing (2), an inlet pipe (3), an outlet pipe (4), and a drive shaft (7); The impeller (1) is connected to the inlet pipe (3) at its inlet and to the outlet pipe (4) at its outlet; one end of the drive shaft (7) is connected to the drive motor, and the other end is connected to the impeller (1); the outer wall of the drive shaft (7) is connected to the bearing cylinder (2). The impeller (1) includes a housing (9) and a blade assembly (11), the blade assembly (11) being rotatably connected inside the housing (9), and the drive shaft (7) passing through the housing (9) and connecting the blade assembly (11); The blade assembly (11) has a blade tip radius of 768.1 mm, a blade twist angle of 173.72°, a blade flattening angle of 6.85°, and a tail blade with an R70 rounded corner. The impeller (1) has a straight section of 69.5 mm for its suction port.

2. The suction and discharge dredging pump device according to claim 1, characterized in that, The inlet of the impeller (1) is connected to the inlet pipe (3) via the first flange (5).

3. The suction and discharge dredging pump device according to claim 1, characterized in that, The outlet of the impeller (1) is connected to the outlet pipe (4) via a second flange (6).

4. The suction and discharge dredging pump device according to claim 1, characterized in that, The lower end of the impeller (1) is connected to a support (8).

5. The suction and discharge dredging pump device according to claim 1, characterized in that, The outer wall of the bearing cylinder (2) is connected to a mounting plate (10) for connecting external equipment.

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