Leak-proof centrifugal sand pump

Abstract

This utility model discloses a leak-proof centrifugal sand pump, including a shock-absorbing structure. The shock-absorbing structure is mounted on a base and includes a connecting column, a column, a foot, a nut, and a shock-absorbing cylinder. The base has multiple evenly distributed vertical through holes, and each through hole contains a connecting column. The bottom of the connecting column is fixedly connected to the column, and the bottom of the column is fixedly connected to the foot. The top of the connecting column is threaded and connected to a nut. A shock-absorbing cylinder is fitted onto the connecting column, located between the column and the nut. A bearing housing, a pump body, and a motor are mounted on the base. An impeller is installed inside the pump body, and a rotating shaft is mounted on the bearing housing. One end of the rotating shaft is connected to the impeller inside the pump body, and the other end is connected to the output shaft of the motor. This centrifugal sand pump, by using a first and third shock-absorbing cylinder in cooperation, can buffer vertical vibrations, and by using a second shock-absorbing cylinder, can buffer horizontal vibrations, thereby reducing the damage of vibration to the sand pump's sealing structure.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal sand pump technology, specifically to a leak-proof centrifugal sand pump. Background Technology

[0002] A centrifugal sand pump is a device used to transport suspensions containing solid particles. It uses centrifugal force generated by the rotation of the impeller to transport sand and liquid from the inlet to the outlet to meet the sand and liquid transportation needs in various scenarios such as mining, river dredging, and construction site mud treatment. However, traditional centrifugal sand pumps may vibrate during actual use due to uneven installation foundations or accidental collisions. Since sand pumps are usually directly connected to pipelines through flanges, the impact of vibration can easily damage the sealing structure at the pipeline connection, leading to leakage during the use of the centrifugal sand pump.

[0003] Therefore, we have designed a leak-proof centrifugal sand pump to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a leak-proof centrifugal sand pump to address the shortcomings of the existing technology and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof centrifugal sand pump, including a shock-absorbing structure. The shock-absorbing structure is mounted on a base and includes a connecting column, a column, a foot, a nut, and a shock-absorbing cylinder. The base has multiple evenly distributed vertical through holes, and each through hole is provided with a connecting column that penetrates the through hole. The bottom end of the connecting column is fixedly connected to the column, and the bottom of the column is fixedly connected to the foot. The top end of the connecting column is threaded and connected to a nut. A shock-absorbing cylinder is fitted on the connecting column, and the shock-absorbing cylinder is located between the column and the nut. A bearing seat, a pump body, and a motor are mounted on the base. An impeller is installed inside the pump body, and a rotating shaft is installed on the bearing seat. One end of the rotating shaft is connected to the impeller inside the pump body, and the other end is connected to the output shaft of the motor. Compensators are connected to both the inlet and outlet ends of the pump body.

[0006] As a preferred technical solution of this utility model, the shock absorber includes a first shock absorber, a second shock absorber and a third shock absorber. The first shock absorber is disposed between the nut and the base, the second shock absorber is disposed inside the through hole of the base, and the third shock absorber is disposed between the column and the base.

[0007] As a preferred embodiment of this utility model, hydraulic sensors are installed at both the inlet and outlet of the pump body, and an alarm and a controller are installed on the base. Both the hydraulic sensors and the alarm are connected to the controller.

[0008] As a preferred embodiment of this utility model, the base is plate-shaped and has pre-drilled mounting holes.

[0009] As a preferred technical solution of this utility model, both the first and third shock absorbers are circular rubber pads with a radius larger than the radius of the through hole on the base. The center of the pad has a circular through hole that allows only the connecting column to pass through.

[0010] As a preferred embodiment of this utility model, the second shock absorber is a rubber cylindrical tube, with both ends of the cylindrical tube not extending beyond the through holes on the base. The inner wall of the cylindrical tube is in close contact with the connecting column, and the outer wall of the cylindrical tube is in close contact with the inner wall of the through hole of the base.

[0011] As a preferred embodiment of this utility model, a washer is provided between the nut and the first shock absorber.

[0012] Compared with the prior art, this utility model provides a leak-proof centrifugal sand pump, which has the following features:

[0013] Beneficial effects:

[0014] This leak-proof centrifugal sand pump, by setting up a first damping cylinder and a third damping cylinder in combination, can buffer vertical vibrations, and by setting up a second damping cylinder, it can buffer horizontal vibrations, thereby reducing the damage of vibration to the sand pump sealing structure and achieving the effect of preventing leakage. In addition, by setting up compensators at the inlet and outlet ends of the pump body, the centrifugal sand pump can compensate for the displacement of the pipeline caused by vibration, thereby further reducing the damage of vibration to the sand pump sealing structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the shock absorption structure of this utility model.

[0018] Reference numerals in the attached diagram: 1. Connecting column; 2. Column; 3. Foot; 4. Nut; 5. Base; 6. Shim; 7. First shock absorber; 8. Second shock absorber; 9. Third shock absorber; 10. Bearing housing; 11. Pump body; 12. Motor; 13. Compensator; 14. Alarm; 15. Controller. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figures 1-3 The leak-proof centrifugal sand pump of this embodiment mainly includes a shock-absorbing structure, a bearing housing 10, a pump body 11, a motor 12, etc. The shock-absorbing structure is set on a base 5, and the base 5 has multiple evenly distributed vertical through holes. Each through hole is provided with a connecting column 1 that passes through the through hole. The bottom end of the connecting column 1 is welded to the column 2. The bottom of the column 2 is welded with a plate-shaped foot 3. The foot 3 has a reserved installation hole to facilitate the user to install the entire centrifugal sand pump in the designated position. The top of the connecting column 1 is threaded and connected with a nut 4. A shock-absorbing cylinder is fitted on the connecting column 1. The shock-absorbing cylinder consists of a first shock-absorbing cylinder 7, a second shock-absorbing cylinder 8, and a third shock-absorbing cylinder 9. The first shock-absorbing cylinder 7 is set between the nut 4 and the base 5, and a gasket 6 is also set between the nut 4 and the first shock-absorbing cylinder 7. The first shock-absorbing cylinder 7 is a circular rubber pad. The radius of the pad is larger than the radius of the through hole on the base 5. A circular through hole, which can only be passed through by the connecting column 1, is opened at the center. The second shock absorber 8 is a rubber cylinder, which is set inside the through hole of the base 5. The two ends of the cylinder do not extend beyond the through hole on the base 5. The inner wall of the cylinder is in close contact with the connecting column 1, and the outer wall of the cylinder is in close contact with the inner wall of the through hole of the base 5. The third shock absorber 9 is also a circular rubber pad, which is set between the column 2 and the base 5. Its radius is larger than the radius of the through hole on the base 5. A circular through hole, which can only be passed through by the connecting column 1, is opened at the center. By setting the first shock absorber 7 and the third shock absorber 9 together, vertical vibration can be buffered. By setting the second shock absorber 8, horizontal vibration can be buffered, thereby reducing the damage of vibration to the sealing structure of the sand pump and achieving the function of preventing leakage.

[0021] The base 5 is equipped with a bearing housing 10, a pump body 11, and a motor 12. An impeller is installed inside the pump body 11, and a rotating shaft is installed on the bearing housing 10. One end of the rotating shaft is connected to the impeller inside the pump body 11, and the other end is connected to the output shaft of the motor 12. The rotating shaft is sealed to the rear cover of the pump body 11 by a shaft seal. The rotating shaft is driven to rotate by the motor 12, which in turn drives the impeller to rotate, thus realizing the operation of the sand pump. Both the inlet and outlet ends of the pump body 11 are connected to compensators 13 to compensate for the displacement of the pipeline caused by vibration, and further reduce the damage of vibration to the sealing structure of the sand pump.

[0022] Example 2: The installation method of the shock absorption structure of this anti-leakage sand pump is as follows: The third shock absorber 9 and the second shock absorber 8 are successively fitted onto the connecting column 1. The connecting column 1 and the second shock absorber 8 are inserted into the through hole from below the base 5, and the top of the connecting column 1 is exposed on the upper surface of the base 5. Then, the first shock absorber 7 and the gasket 6 are successively fitted onto the connecting column 1. Finally, the nut 4 is put on the top of the connecting column 1 and tightened. The shock absorption structure is installed. The shock absorber may wear out after long-term use, so the shock absorber needs to be replaced regularly. When disassembling the shock absorber, first remove the nut 4, remove the gasket 6 and the first shock absorber 7, then pull the connecting column 1 and the second shock absorber 8 from below the base 5, and then remove the second shock absorber 8 and the third shock absorber 9. The disassembly of the shock absorber is completed.

[0023] Example 3: Based on Example 1, this example adds real-time leak detection and alarm functions. Hydraulic sensors are installed at both the inlet and outlet of the pump body 11. An alarm 14 and a controller 15 are installed on the base 5. Both the hydraulic sensors and the alarm 14 are connected to the controller 15. The hydraulic sensors are used to monitor the hydraulic pressure changes at the inlet and outlet of the pump body 11 in real time. If the hydraulic sensor detects an abnormal pressure drop during the stable operation of the sand pump, it indicates that there is a leak in the sand pump or its connection. After the hydraulic sensor transmits the abnormal signal to the controller 15, the controller 15 controls the alarm 14 to issue an audible and visual alarm to remind the staff to deal with it in time.

[0024] Operating Procedure: Place the entire centrifugal sand pump in the designated location, then secure the base 3 to the foundation using bolts. After installation, connect the delivery pipes to the inlet and outlet of the pump body 11. Before starting the pump, check the electrical connections to ensure the motor 12 is correctly connected to the power supply and that the alarm 14 and controller 15 are also properly connected to the circuit. Start the motor 12; its output shaft drives the rotating shaft, which in turn drives the impeller inside the pump body 11, thus achieving the delivery of sand. During operation, if the pump vibrates due to uneven foundation or accidental collision, the first damping cylinder 7, the second damping cylinder 8, and the third damping cylinder 9 work together to buffer the impact of the vibration, thereby reducing damage to the pump's sealing structure. Simultaneously, the inlet and outlet ends of the pump body 11... The connected compensator 13 can compensate for the displacement of the pipeline caused by vibration, and prevent the sealing structure from being damaged due to excessive stress, thereby achieving the function of preventing leakage. In addition, during the operation of the sand pump, the hydraulic sensors installed at the inlet and outlet of the pump body 11 monitor the hydraulic status in real time and transmit the monitored signals to the controller 15. If the hydraulic pressure is within the normal range, the sand pump will continue to operate stably. If the hydraulic pressure is abnormal, the controller 15 will immediately control the alarm 14 to issue an audible and visual alarm after receiving the abnormal signal, reminding the operator to deal with the abnormal situation in time. After the sand pump is used up, the motor 12 should be turned off first to stop the sand pump from running. After the sand pump has completely stopped rotating, the conveying pipeline can be disassembled. If the sand pump is not used for a long time, necessary cleaning and maintenance can be performed on the sand pump to extend its service life.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Leak-proof centrifugal sand pump comprising a shock-absorbing structure, characterized in that: The shock-absorbing structure is set on the base (5), which includes a connecting column (1), a column (2), a foot (3), a nut (4), and a shock-absorbing cylinder. The base (5) has multiple evenly distributed vertical through holes, and each through hole is provided with a connecting column (1) that passes through the through hole. The bottom end of the connecting column (1) is fixedly connected to the column (2), and the bottom of the column (2) is fixedly connected to the foot (3). The top end of the connecting column (1) is threaded and connected to the nut (4). The shock-absorbing cylinder is sleeved on the connecting column (1) and is located between the column (2) and the nut (4). The base (5) is equipped with a bearing seat (10), a pump body (11), and a motor (12). The pump body (11) is equipped with an impeller, and the bearing seat (10) is equipped with a rotating shaft. One end of the rotating shaft is connected to the impeller inside the pump body (11), and the other end is connected to the output shaft of the motor (12). The inlet and outlet ends of the pump body (11) are both connected to There is a compensator (13). The shock absorber includes a first shock absorber (7), a second shock absorber (8) and a third shock absorber (9). The first shock absorber (7) is set between the nut (4) and the base (5). The second shock absorber (8) is set inside the through hole of the base (5). The third shock absorber (9) is set between the column (2) and the base (5). The first shock absorber (7) and the third shock absorber (9) are both circular rubber pads. The radius of the pad is larger than the radius of the through hole on the base (5). The center of the pad has a circular through hole that can only be passed through by the connecting column (1). The second shock absorber (8) is a rubber cylinder. The two ends of the cylinder do not extend beyond the through hole on the base (5). The inner wall of the cylinder is in close contact with the connecting column (1). The outer wall of the cylinder is in close contact with the inner wall of the through hole of the base (5). A washer (6) is provided between the nut (4) and the first shock absorber (7).

2. A leak-proof centrifugal sand pump according to claim 1, characterized in that: Hydraulic sensors are installed at both the inlet and outlet of the pump body (11), and an alarm (14) and a controller (15) are installed on the base (5). The hydraulic sensors and the alarm (14) are both connected to the controller (15).

3. The leak resistant centrifugal sand pump of claim 1, wherein: The base (3) is plate-shaped and has mounting holes.

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