Linkage vacuum assisted self priming pump

Abstract

The utility model provides a kind of linkage vacuum auxiliary self-priming pump, including power device, the output shaft of power device is connected with pulley one, and the power input end of a screw pump is connected with pulley two, and several transmission belts are connected between pulley one and pulley two.The outer end of pulley one is connected with cross byte transmission shaft, the power input end of the centrifugal pump is connected with cross byte transmission shaft, the water inlet end of the centrifugal pump is connected with water storage tank by pipeline one, and the water inlet pipe is connected with one side of the water storage tank.The water outlet end of the centrifugal pump is connected with drain tank by pipeline two.The utility model can realize efficient drainage.Water in screw pump is sent into drain pipe by drain pipe one, and is discharged through drain pipe.Supporting plate one and supporting plate two can ensure that water storage tank and drain tank are not deformed during work.

Description

Technical Field

[0001] This utility model relates to the field of self-priming pump technology, and in particular to a linkage-type vacuum-assisted self-priming pump. Background Technology

[0002] Before construction begins, it is often necessary to excavate deep foundation pits in areas with high groundwater levels. As the aquifer is cut off, groundwater will inevitably seep into the foundation pit under pressure differential. If dewatering is not carried out, the foundation pit will be flooded, which will worsen the on-site construction conditions, reduce the bearing capacity of the foundation, and may also cause quicksand, piping, and slope instability under the action of dynamic water pressure. Therefore, effective dewatering and drainage measures must be taken to ensure the safety of foundation pit construction.

[0003] Existing rainwater and drainage devices have low pumping efficiency, which prolongs the construction period. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a linkage-type vacuum-assisted self-priming pump, which is achieved through the following technical solution:

[0005] A linkage-type vacuum-assisted self-priming pump includes a power unit, the output shaft of which is connected to a pulley one, and the power input end of a screw pump is connected to a pulley two. Several drive belts are connected between the pulley one and the pulley two.

[0006] The outer end of the pulley is connected to a ten-way drive shaft, which is connected to the power input end of the centrifugal pump. The water inlet of the centrifugal pump is connected to a water storage tank through a pipe. A water inlet pipe is connected to one side of the water storage tank. Several support plates are provided inside the water storage tank. Each support plate is rigidly fixed to the front and rear inner walls of the water storage tank. The top of the support plate is lower than the top of the water storage tank, and the bottom is higher than the bottom of the water storage tank.

[0007] The centrifugal pump's outlet is connected to a drain tank via a second pipe. The drain tank has a drain pipe on its top and a vertically installed support plate inside. The water storage tank is connected to the screw pump's inlet via a water supply pipe. The screw pump's outlet is connected to a drain pipe via a first drain pipe. The screw pump is also connected to a cooling water tank, whose inlet is connected to a drain pipe via a cooling water pipe.

[0008] As a preferred embodiment, the power unit is a diesel engine.

[0009] As a preferred embodiment, the water storage tank is connected to a water inlet pipe.

[0010] As a preferred embodiment, the distance between two adjacent support plates is 15-25cm.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The screw pump of this utility model is connected to the water storage tank through a water delivery pipe. A one-way valve is installed on the water delivery pipe to ensure that the water in the water storage tank flows into the screw pump in one direction. The centrifugal pump is connected to the water storage tank through a pipe, which will greatly improve the pumping force of the water storage tank and achieve efficient drainage. The water in the screw pump is sent to the drain pipe through a drain pipe and discharged through the drain pipe.

[0012] The installation of support plate one and support plate two ensures that the water storage tank and drainage tank will not deform during operation. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 This is a schematic diagram of the connection structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the screw pump and the cooling water tank of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the water storage tank of this utility model;

[0017] Figure 4 This is a schematic diagram of the left-side structure of the water storage tank of this utility model;

[0018] Figure 5 From Figure 4 Schematic diagram of the cross-section at point AA;

[0019] Figure 6 This is a three-dimensional structural diagram of the drainage tank of this utility model;

[0020] Figure 7 This is a schematic diagram of the main structure of the drainage tank of this utility model;

[0021] Figure 8 From Figure 7 Schematic diagram of the cross-section at point BB. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0023] A linkage-type vacuum-assisted self-priming pump includes a power unit 1, the output shaft 101 of the power unit 1 is connected to a pulley 2, the power input end of a screw pump 3 is connected to a pulley 4, and a plurality of drive belts 5 are connected between the pulley 2 and the pulley 4.

[0024] The outer end of the pulley 2 is connected to the ten-way drive shaft 6, which is connected to the power input end of the centrifugal pump 7. The water inlet of the centrifugal pump 7 is connected to the water storage tank 9 through the pipe 8. The water storage tank 9 has an inlet pipe 91 connected to one side. The water storage tank 9 is provided with several support plates 92 inside. Each support plate 92 is rigidly fixed to the front and rear inner walls of the water storage tank 9. The top of the support plate 92 is lower than the top of the water storage tank 9, and the bottom is higher than the bottom of the water storage tank 9.

[0025] The outlet of the centrifugal pump 7 is connected to the drain tank 10 through the second pipe 71. The top of the drain tank 10 is provided with a drain pipe 11, and the inside of the drain tank 10 is provided with a vertically arranged support plate 12.

[0026] The water storage tank 9 is connected to the inlet of the screw pump 3 via a water supply pipe 13. The outlet of the screw pump 3 is connected to the drain pipe 11 via a drain pipe 14. The screw pump 3 is also connected to a cooling water tank 15. The inlet of the cooling water tank 15 is connected to the drain pipe 11 via a cooling water pipe 16.

[0027] Furthermore, the power unit 1 is a diesel engine.

[0028] Furthermore, the water storage tank 9 is connected to a water inlet pipe 93.

[0029] Furthermore, the distance between two adjacent support plates 92 is 15-25cm.

[0030] When the linked vacuum-assisted self-priming pump is working, the power unit 1 is started, which drives the screw pump 3 and the centrifugal pump 7 to operate. Since the screw pump 3 needs to have sufficient liquid in the pump chamber to prevent dry running and wear of the mechanical seal surface when starting, the centrifugal pump 7 needs to be filled with water for water sealing. Therefore, before pumping water, an external water source needs to be introduced into the water storage tank 9 through the water inlet pipe 93. The water storage tank 9 sends a portion of the water to the screw pump 3 through the water delivery pipe 13. The water storage tank 9 also sends the water in it to the centrifugal pump 7 through the pipe 8 to ensure that the screw pump 3 and the centrifugal pump 7 can start and operate normally. After the screw pump 3 and the centrifugal pump 7 are running, the water storage tank 9 generates a vacuum and has a large suction force. The water inlet pipe 91 connected to the water source where drainage is required is connected to the water source. The large suction force generated in the water storage tank draws the water from the water source into the water storage tank 9, and then sends it to the drainage tank 10 through the centrifugal pump 7 and discharges it through the drainage pipe 11.

[0031] During operation, some of the water entering the drain pipe 11 is also sent to the cooling water tank 15 through the cooling water pipe 16 to cool the screw pump 3. The screw pump 3 is connected to the water storage tank 9 through the water supply pipe 13, which is equipped with a one-way valve to ensure that the water in the water storage tank 9 flows unidirectionally into the screw pump 3. The centrifugal pump 7 is connected to the water storage tank 9 through pipe 8, which greatly enhances the pumping capacity of the water storage tank 9 and achieves efficient drainage. The water in the screw pump 3 is sent to the drain pipe 11 through the drain pipe 14 and discharged through the drain pipe 11. It can be used for drainage or dewatering of building foundation pits, and can also be used for irrigation.

[0032] The installation of support plate 92 and support plate 12 ensures that the water storage tank 9 and the drainage tank 10 will not deform during operation.

[0033] The specific implementation of this utility model has been described in detail above, but it is only an example. This utility model is not limited to the specific implementation cases described above, and equivalent modifications to this utility model are also within the protection scope of this utility model.

Claims

1. A linkage-type vacuum-assisted self-priming pump, characterized in that, Includes a power unit (1), the output shaft (101) of the power unit (1) is connected to a pulley (2), the power input end of a screw pump (3) is connected to a pulley (4), and several transmission belts (5) are connected between the pulley (2) and the pulley (4). The outer end of the pulley (2) is connected to the 10-byte drive shaft (6), the 10-byte drive shaft (6) is connected to the power input end of the centrifugal pump (7), the water inlet end of the centrifugal pump (7) is connected to the water storage tank (9) through the pipe (8), the water storage tank (9) is connected to the water inlet pipe (91) on one side, the water storage tank (9) is provided with several support plates (92) inside, each support plate (92) is rigidly fixed to the front and rear inner walls of the water storage tank (9), the top of the support plate (92) is lower than the top of the water storage tank (9), and the bottom is higher than the bottom of the water storage tank (9); The outlet of the centrifugal pump (7) is connected to the drain tank (10) through the second pipe (71). The top of the drain tank (10) is provided with a drain pipe (11), and the inside of the drain tank (10) is provided with a vertically arranged support plate (12). The water storage tank (9) is connected to the inlet of the screw pump (3) through the water supply pipe (13). The outlet of the screw pump (3) is connected to the drain pipe (11) through the drain pipe (14). The screw pump (3) is also connected to a cooling water tank (15). The inlet of the cooling water tank (15) is connected to the drain pipe (11) through the cooling water pipe (16).

2. The linked vacuum-assisted self-priming pump according to claim 1, characterized in that, The power unit (1) is a diesel engine.

3. The linked vacuum-assisted self-priming pump according to claim 1, characterized in that, The water storage tank (9) is connected to a water inlet pipe (93).

4. The linked vacuum-assisted self-priming pump according to claim 1, characterized in that, The distance between two adjacent support plates (92) is 15-25cm.

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