Sludge pump system

Abstract

A sludge pump system includes: a sludge pump module including a sludge pump having a sludge inlet through which sewage enters the sludge pump and a sludge outlet through which sewage exits the sludge pump; a sludge inlet valve connected to the sludge inlet; the sludge outlet valve is connected to the sludge outlet; wherein the sludge pump system further comprises a flushing module, the flushing module comprises a flushing pump, the flushing pump is provided with a flushing inlet and a flushing outlet, and the cleaning liquid enters the flushing pump through the flushing inlet and then leaves the flushing pump through the flushing outlet; a flush inlet valve connected to the flush inlet; a flush outlet valve connected to the flush outlet; the flushing outlet valve is connected to the sludge inlet, and the sludge pump system is configured such that cleaning fluid enters the sludge pump from the flushing module via the flushing outlet valve and cleans the sludge pump.

Description

Technical Field

[0001] The utility model relates to a sludge pump system, and more specifically, to a sludge pump system capable of automatic flushing. Background Art

[0002] The sludge pump can be used to treat sewage or rainwater. In the case of high suspended solids or easy scaling in the water quality, after the sludge pump stops running, the conveyed sludge will remain in the pump head. Due to the strong viscosity of the sludge, after stopping for a period of time, the remaining sludge will stick to the stator and rotor of the pump. When the sludge pump is started again, the stuck rotor will be jammed, making it difficult or impossible to start. At the same time, the jammed rotor will also cause the starting torque of the sludge pump to be too large and the motor current to be too high, affecting the service life of the motor.

[0003] For the above-mentioned jamming problem of the sludge pump, currently, a flushing interface can be set at the pump head or pipeline to manually flush the pump to clean the remaining sludge in the pump. However, when using the manual flushing method, the system is shut down and the process unit cannot be started. Manual operation is complex, and the valves need to be manually switched in the correct order. If the flushing is not timely, it is impossible to flush immediately after the pump stops. Once the pump stops for a long time, it may still be jammed when starting again.

[0004] Therefore, it is desirable to propose a sludge pump system to improve the defects in the above-mentioned prior art. Summary of the Utility Model

[0005] According to one aspect of the present utility model, a sludge pump system is proposed, including: a sludge pump module, including: a sludge pump having a sludge inlet and a sludge outlet, sewage enters the sludge pump through the sludge inlet and then leaves the sludge pump through the sludge outlet; a sludge inlet valve connected to the sludge inlet; a sludge outlet valve connected to the sludge outlet; wherein, the sludge pump system further includes a flushing module, and the flushing module includes: a flushing pump having a flushing inlet and a flushing outlet, the cleaning liquid enters the flushing pump through the flushing inlet and then leaves the flushing pump through the flushing outlet; a flushing inlet valve connected to the flushing inlet; a flushing outlet valve connected to the flushing outlet; the flushing outlet valve is connected to the sludge inlet, and the sludge pump system is configured such that the cleaning liquid enters the sludge pump from the flushing module through the flushing outlet valve and cleans the sludge pump.

[0006] According to this solution, by arranging the flushing module, the sludge pump can be automatically and timely cleaned every time it finishes running, preventing the problem that dirt adheres to the sludge pump and is difficult to remove due to untimely cleaning of the sludge pump, and at the same time avoiding complex manual operations.

[0007] In some solutions, the flushing outlet valve can be connected to the sludge inlet downstream of the sludge inlet valve.

[0008] According to this solution, the cleaning liquid flows from the flushing outlet valve into the sludge pump to clean the sludge pump.

[0009] In some solutions, the sludge pump system may further include a controller. The controller is connected to the sludge pump system. When the sludge pump stops operating, the sludge pump system cleans the sludge pump in response to the instructions of the controller.

[0010] According to this solution, automatic cleaning of the sludge pump is achieved through the controller, without the need for manual monitoring and operation of the sludge pump.

[0011] In some solutions, the controller can be configured such that the cleaning operation lasts for a predetermined duration.

[0012] According to this solution, when the cleaning operation has lasted for a sufficient length of time, it can be considered that the sludge pump has been sufficiently cleaned, and thus the cleaning operation can be ended.

[0013] In some solutions, the predetermined duration can be between 5 and 15 minutes.

[0014] In some solutions, the sludge pump system may further include a flushing outlet pipeline. The flushing outlet pipeline is connected to the sludge outlet. After the cleaning operation is completed, the cleaning liquid leaves the sludge pump system via the flushing outlet pipeline.

[0015] According to this solution, the cleaning liquid has an independent channel for entering and leaving the sludge pump system, and the operations of the flushing module and the sludge pump module can be independently controlled.

[0016] In some solutions, the sludge pump system may further include a water quality sensor. The water quality sensor is arranged in the flushing outlet pipeline and is configured to detect the impurity content of the cleaning liquid in the flushing outlet pipeline. The controller ends the cleaning operation based on the impurity content detected by the water quality sensor.

[0017] According to this solution, when it is detected that the cleaning liquid in the flushing outlet pipeline is clean enough, it can be considered that the sludge pump has been sufficiently cleaned, and thus the cleaning operation can be ended.

[0018] In some solutions, the sludge pump system may further include a suction sump. The suction sump is connected to the flushing inlet valve, and the suction sump stores the cleaning liquid.

[0019] In some solutions, the sludge pump system may further include a liquid level sensor. The liquid level sensor is connected to the suction sump and is configured to detect the height of the cleaning liquid in the suction sump. The controller pauses the cleaning operation based on the height of the cleaning liquid detected by the liquid level sensor.

[0020] According to this solution, when the amount of the cleaning liquid in the suction sump is insufficient, the cleaning operation can be automatically paused by the controller. After a sufficient amount of cleaning liquid is replenished in the suction sump, the cleaning operation is restarted.

[0021] In some solutions, each of the sludge inlet valve, the sludge outlet valve, the flushing inlet valve, and the flushing outlet valve can be an electric valve and / or a manual valve.

[0022] According to this solution, the sludge pump system can be controlled either automatically or manually, expanding the functions of the sludge pump system.

[0023] In some solutions, the sludge pump system includes multiple sludge pump modules, and the flushing outlet valve is connected to the sludge inlet of each of the multiple sludge pump modules.

[0024] According to this solution, the flushing module can clean multiple sludge pumps, improving the cleaning efficiency. Description of the Drawings

[0025] Figure 1 Shows a schematic diagram of a sludge pump system according to an embodiment of the present invention.

[0026] Reference Signs:

[0027] 1: Flushing inlet pipeline

[0028] 2: Flushing automatic valve

[0029] 3: Flushing manual valve

[0030] 4: Flushing outlet pipeline

[0031] 5: Flushing outlet pipeline automatic valve

[0032] 6: Flushing outlet pipeline manual valve

[0033] 7: Sludge pump

[0034] 8: Sludge inlet pipeline

[0035] 9: Sludge inlet automatic valve

[0036] 10: Sludge outlet pipeline

[0037] 11: Sludge outlet automatic valve

[0038] 12: Flushing pump

[0039] 13: Flushing inlet valve

[0040] 14: Flushing outlet valve Detailed Description of the Invention

[0041] In order to make the objectives, solutions, and advantages of the technical solution of the present utility model clearer, the technical solution of the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present utility model. Unless otherwise specified, the terms used herein have the ordinary meanings in the art. The same reference numerals in the drawings represent the same components.

[0042] Figure 1 Fig. 4 shows a sludge pump system according to an embodiment of the present utility model. The sludge pump system includes a sludge pump module. The sludge pump module includes a sludge pump 7, a sludge inlet automatic valve 9, and a sludge outlet automatic valve 11. The sludge pump 7 has a sludge inlet and a sludge outlet. The sludge inlet automatic valve 9 and the sludge outlet automatic valve 11 are respectively connected to the sludge inlet and the sludge outlet. Sewage first enters the sludge inlet pipeline 8 from outside the sludge pump module, then enters the sludge pump 7 through the sludge inlet from the sludge inlet pipeline 8, then enters the sludge outlet pipeline 10 through the sludge outlet from the sludge pump 7, and finally leaves the sludge pump module from the sludge outlet pipeline 10. The sludge pump 7 of the present utility model can be used to treat sewage, rainwater, or any other liquid that may form dirt on the sludge pump 7 and block the operation of the sludge pump 7.

[0043] In order to achieve automatic and timely cleaning of the sludge pump 7, the sludge pump system further includes a flushing module. The flushing module includes a flushing pump 12, a flushing inlet valve 13, and a flushing outlet valve 14. The flushing pump 12 has a flushing inlet and a flushing outlet. The flushing inlet valve 13 and the flushing outlet valve 14 are respectively connected to the flushing inlet and the flushing outlet. The flushing outlet valve 14 is also connected to the sludge inlet. The cleaning liquid first enters the flushing inlet valve 13 from outside the flushing module, then enters the flushing pump 12 through the flushing inlet from the flushing inlet valve 13, then enters the flushing outlet valve 14 through the flushing outlet from the flushing pump 12, and finally leaves the flushing module from the flushing outlet valve 14 and enters the sludge pump module to perform a cleaning operation on the sludge pump 7.

[0044] Preferably, the flushing outlet valve 14 can be connected to the sludge inlet downstream of the sludge inlet automatic valve 9. The cleaning liquid directly flows into the sludge pump 7 from the flushing outlet valve 14 to clean the sludge pump 7 without first passing through other parts of the sludge pump module, further improving the cleaning efficiency.

[0045] Preferably, the sludge pump system can further include a controller. The controller is connected to the sludge pump system. When the sludge pump 7 stops operating, the sludge pump system cleans the sludge pump 7 in response to the instruction of the controller. The automatic cleaning of the sludge pump 7 is achieved through the controller without manual monitoring and operation of the sludge pump 7.

[0046] Preferably, the controller can be configured such that the cleaning operation lasts for a predetermined duration, which can be between 5 and 15 minutes. After the cleaning operation has lasted for a sufficient length of time, it can be considered that the sludge pump 7 has been sufficiently cleaned, and thus the cleaning operation can be ended. It should be understood that the present utility model is not intended to limit the specific predetermined duration, and the cleaning time can vary based on different application scenarios.

[0047] Preferably, the sludge pump system can further include a flushing outlet pipeline 4, which is connected to the sludge outlet. After the cleaning operation is completed, the cleaning liquid leaves the sludge pump system via the flushing outlet pipeline 4. The automatic valve 5 or manual valve 6 of the flushing outlet pipeline can be controlled to control the cleaning liquid to leave the sludge pump system via the flushing outlet pipeline 4. The cleaning liquid has an independent channel for entering and leaving the sludge pump system, and the operations of the flushing module and the sludge pump module can be independently controlled.

[0048] In addition or alternatively, the sludge pump system can further include a water quality sensor, which is arranged in the flushing outlet pipeline 4 and configured to detect the impurity (e.g., suspended particulate matter in water) content of the cleaning liquid in the flushing outlet pipeline 4. The controller ends the cleaning operation based on the impurity content detected by the water quality sensor. When it is detected that the cleaning liquid in the flushing outlet pipeline 4 is clean enough, it can be considered that the sludge pump 7 has been sufficiently cleaned, and thus the cleaning operation can be ended.

[0049] Optionally, the sludge pump system can further include a suction sump, which is connected to the flushing inlet valve 13 and stores the cleaning liquid. In addition, the sludge pump system can further include a liquid level sensor, which is connected to the suction sump and configured to detect the height of the cleaning liquid in the suction sump. The controller pauses the cleaning operation based on the height of the cleaning liquid detected by the liquid level sensor. According to this solution, when the amount of the cleaning liquid in the suction sump is insufficient, the cleaning operation can be automatically paused by the controller. After a sufficient amount of cleaning liquid is replenished in the suction sump, the cleaning operation can be restarted.

[0050] In addition, the sludge pump system can further include a flushing automatic valve 2 and / or a flushing manual valve 3, which are used to control the cleaning liquid leaving the flushing pump 12 to enter the flushing inlet pipeline 1 of the sludge pump 7. The sludge pump system can be controlled either automatically or manually, which expands the functions of the sludge pump system. It should be understood that the various valves mentioned herein can be either automatic valves or manual valves (e.g., Figure 1 the flushing manual valve 3 and the manual valve 6 of the flushing outlet pipeline). Preferably, the various valves mentioned herein can include both automatic valves and manual valves. The automatic valves are used for providing automatic control, and the manual valves are used for manual control in the event of a failure or other conditions of the automatic valves.

[0051] Preferably, the sludge pump system includes a plurality of sludge pump modules, and the flushing outlet valve 14 is connected to the sludge inlets of each of the plurality of sludge pump modules. In this way, the flushing module can perform a cleaning operation on the plurality of sludge pumps 7, improving the cleaning efficiency.

[0052] The present invention has been described in detail with reference to preferred embodiments of multiple exemplary embodiments. However, those skilled in the art can understand that without departing from the concept of the present invention, various modifications and changes can be made to the above specific embodiments, and various technical features and structures proposed by the present invention can also be combined without exceeding the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A sludge pump system, characterized in that: include: Sludge pump module, comprising: A sludge pump having a sludge inlet and a sludge outlet, wherein sewage enters the sludge pump through the sludge inlet and then leaves the sludge pump from the sludge outlet; a sludge inlet valve connected to the sludge inlet; a sludge outlet valve connected to the sludge outlet; Wherein, the sludge pump system further includes a flushing module, and the flushing module includes: A flushing pump having a flushing inlet and a flushing outlet, wherein the cleaning liquid enters the flushing pump through the flushing inlet and then leaves the flushing pump from the flushing outlet; a flushing inlet valve connected to the flushing inlet; a flushing outlet valve connected to the flushing outlet; The flushing outlet valve is connected to the sludge inlet, and the sludge pump system is configured such that the cleaning fluid enters the sludge pump from the flushing module via the flushing outlet valve and cleans the sludge pump.

2. The sludge pump system according to claim 1, characterized in that: The flushing outlet valve is connected to the sludge inlet downstream of the sludge inlet valve.

3. The sludge pump system according to claim 1, characterized in that: The system also includes a controller coupled to the sludge pump system. When the sludge pump stops running, the sludge pump system cleans the sludge pump in response to an instruction of the controller.

4. The sludge pump system according to claim 3, characterized in that: The controller is configured to cause the cleaning operation to continue for a predetermined duration.

5. The sludge pump system according to claim 4, characterized in that: The predetermined duration is between 5 and 15 minutes.

6. The sludge pump system according to claim 3, characterized in that: The sludge pump system further comprises a flushing outlet pipeline, which is connected to the sludge outlet. After the cleaning operation is completed, the cleaning liquid leaves the sludge pump system via the flushing outlet pipeline.

7. The sludge pump system according to claim 6, characterized in that: The sludge pump system further includes a water quality sensor disposed in the flushing outlet pipeline and configured to detect the impurity content of the cleaning fluid in the flushing outlet pipeline, and the controller ends the cleaning operation based on the impurity content detected by the water quality sensor.

8. The sludge pump system according to claim 3, characterized in that: A water suction tank is also included, wherein the water suction tank is connected to the flushing inlet valve and stores the cleaning liquid.

9. The sludge pump system according to claim 8, characterized in that: A liquid level sensor is also included, the liquid level sensor is coupled to the water absorption tank and is configured to detect the height of the cleaning liquid in the water absorption tank, and the controller suspends the cleaning operation based on the height of the cleaning liquid detected by the liquid level sensor.

10. The sludge pump system according to claim 1, characterized in that: Each of the sludge inlet valve, the sludge outlet valve, the flushing inlet valve, and the flushing outlet valve is an electric valve and / or a manual valve.

11. The sludge pump system according to claim 1, characterized in that: The sludge pump system includes a plurality of the sludge pump modules, and the flushing outlet valve is connected to a sludge inlet of each of the plurality of sludge pump modules.

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