A tank cleaning system

Abstract

This utility model relates to the technical field of sludge cleaning systems, specifically to an oil tank cleaning system, including a housing and a distribution box. The housing also includes a vacuum tank, a first chemical pump, a second chemical pump, a circulation pump that drives the sludge to circulate within the system, a vacuum tank connected to a vacuum pump, and a sludge treatment device connected to the vacuum tank for processing the sludge and improving its fluidity. The first chemical pump is connected to a cleaning robot placed inside the oil tank to extract the sludge. The system also includes a PLC controller that controls the first chemical pump, the second chemical pump, the circulation pump, the vacuum pump, the sludge treatment device, and the cleaning robot. This application uses multiple pumps, which, under the unified control of the PLC controller, greatly improve the sludge extraction speed and shorten the operation time. A heat exchanger is installed to heat the sludge, ensuring good sludge flow and shortening the transport time.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge cleaning systems, specifically to an oil tank cleaning system. Background Technology

[0002] Due to the wide variety of structural materials, the systematic nature of systems and devices, the complexity of media and processes, the variability of fouling composition, the importance of safe production and environmental protection, and the reliance on and strictness of chemical cleaning in petrochemical systems, enterprises should attach great importance to the cleaning of oil tanks and storage tanks in petrochemical systems. After a period of use, all oil storage tanks will experience varying degrees of oil emulsification, tank wall corrosion, and an increase in black sludge inside the tank. Regular and scheduled cleaning of oil storage tanks is necessary and essential. Traditional cleaning equipment takes a long time to clean, leaves a lot of residual sludge in the tank, and requires a long time for subsequent processing of the extracted sludge, resulting in low cleaning efficiency. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides an oil tank cleaning system to solve the problems of long cleaning time and low cleaning efficiency.

[0004] To solve the above problems, the technical solution of this utility model is as follows: an oil tank cleaning system includes a housing, an electrical distribution box in the housing, a vacuum tank inside the housing, a first chemical pump that draws sludge from the oil tank into the vacuum tank, a second chemical pump that transports the sludge from the vacuum tank to a solid-liquid separation device, a circulation pump that drives the sludge to circulate within the system, a vacuum pump connected to the vacuum tank, a sludge treatment device connected to the vacuum tank for treating sludge and improving its fluidity, a cleaning robot placed inside the oil tank to draw sludge from the first chemical pump, and a PLC controller that controls the first chemical pump, the second chemical pump, the circulation pump, the vacuum pump, the sludge treatment device, and the cleaning robot.

[0005] Furthermore, the waste oil treatment device is a heat exchanger.

[0006] Furthermore, the vacuum pump is a ring-type vacuum pump and is connected to a first water tank.

[0007] Furthermore, a butterfly valve is installed on the pipeline connecting the vacuum tank to the first chemical pump, the second chemical pump, and the circulating pump.

[0008] Furthermore, it also includes a second water tank located inside the box, and a three-dimensional washing tank connected to the second water tank.

[0009] Furthermore, it also includes gas alarms.

[0010] Furthermore, a filter is installed at the front end of the first chemical pump.

[0011] Compared with the prior art, this utility model has the following advantages: by setting up multiple pumps and under the unified control of the PLC controller, the extraction speed of sludge and oil is greatly improved and the operation time is shortened; by setting up a heat exchanger to heat the sludge and oil, the flow effect of the sludge and oil is ensured and the transportation time is shortened. Attached Figure Description

[0012] Figure 1 This is an isometric drawing of the present invention;

[0013] Figure 2 This is the front view of the present utility model;

[0014] Figure 3 This is a top view of the present invention.

[0015] In the diagram: 1. Box body, 2. Distribution box, 3. Vacuum tank, 4. First chemical pump, 5. Second chemical pump, 6. Circulation pump, 7. Vacuum pump, 8. Heat exchanger, 9. PLC controller, 10. First water tank, 11. Butterfly valve, 12. Second water tank, 13. Gas alarm. Detailed Implementation

[0016] like Figure 1-3 As shown, an oil tank cleaning system includes a housing 1, an electrical distribution box 2 inside the housing 1, a vacuum tank 3 inside the housing 1, a first chemical pump 4 that draws sludge from the oil tank into the vacuum tank 3, a second chemical pump 5 that transports the sludge from the vacuum tank 3 to a solid-liquid separation device, a circulation pump 6 that drives the sludge to circulate within the system, a vacuum pump 7 connected to the vacuum tank 3, and a sludge treatment device (a heat exchanger 8) connected to the vacuum tank 3 for treating sludge and improving its fluidity. The first chemical pump 4 is connected to a cleaning robot placed inside the oil tank to draw sludge. The system also includes a PLC controller 9 that controls the first chemical pump 4, the second chemical pump 5, the circulation pump 6, the vacuum pump 7, the sludge treatment device, and the cleaning robot.

[0017] Vacuum pump 7 is a ring vacuum pump and is connected to the first water tank 10.

[0018] A butterfly valve 11 is installed on the pipeline connecting the vacuum tank 3 to the first chemical pump 4, the first chemical pump 5, and the circulating pump 6. The butterfly valve 11 is controlled by the PLC controller 9 to improve automation.

[0019] It also includes a second water tank 12 located inside the housing 1, and a three-dimensional washing tank connected to the second water tank 12.

[0020] It also includes a gas alarm 13, which is electrically connected to the PLC controller 9 and integrated into one unit, with a simpler and more elegant appearance.

[0021] A filter is installed at the front end of the first chemical pump 4 to filter out larger impurities and prevent damage to the first chemical pump 4.

[0022] When in use: 1. Negative pressure extraction: Vacuum pump 7 is started to draw vacuum tank 3 to a negative pressure state. The pressure difference is used to make the sludge oil in the oil tank flow into vacuum tank 3 under the action of the first chemical pump 4.

[0023] 2. Temperature regulation: The circulating pump 6 transports the sludge oil in the vacuum tank 3 to the heat exchanger 8, and adjusts the temperature of the sludge oil by heating or cooling to improve its fluidity and ensure transportation efficiency.

[0024] 3. Circulation flushing: The adjusted sludge is returned to the oil tank via circulation pump 6. Combined with the three-dimensional tank washing device, the residual dirt on the tank wall is flushed to enhance the cleaning effect.

[0025] 4. Separation and discharge: After cleaning, the second chemical pump 5 transports the sludge oil in the vacuum tank 3 to external treatment equipment (such as centrifuges and filters) to achieve solid-liquid separation and waste treatment.

[0026] 5. Equipped with a gas alarm 13 to monitor the concentration of oil and gas in the oil tank in real time. A liquid level alarm device can also be installed in the vacuum tank 3 to prevent overflow or evacuation.

[0027] The above specific embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An oil tank cleaning system, comprising a housing (1), wherein an electrical distribution box (2) is provided inside the housing (1), characterized in that: A vacuum tank (3) is also provided inside the housing (1). A first chemical pump (4) draws the sludge from the oil tank into the vacuum tank (3). A second chemical pump (5) transports the sludge from the vacuum tank (3) to the solid-liquid separation equipment. A circulation pump (6) drives the sludge to circulate within the system. The vacuum tank (3) is connected to a vacuum pump (7). The vacuum tank (3) is connected to a sludge treatment device for treating sludge and improving the fluidity of sludge. The first chemical pump (4) is connected to a cleaning robot placed inside the oil tank to draw out sludge. The system also includes a PLC controller (9) that controls the first chemical pump (4), the second chemical pump (5), the circulation pump (6), the vacuum pump (7), the sludge treatment device, and the cleaning robot.

2. The oil tank cleaning system according to claim 1, characterized in that: The waste oil treatment device is a heat exchanger (8).

3. The oil tank cleaning system according to claim 2, characterized in that: The vacuum pump (7) is a ring vacuum pump and is connected to a first water tank (10).

4. The oil tank cleaning system according to claim 3, characterized in that: The vacuum tank (3) is connected to the pipeline of the first chemical pump (4), the second chemical pump (5), and the circulating pump (6) by a butterfly valve (11).

5. The oil tank cleaning system according to claim 1, characterized in that: It also includes a second water tank (12) located inside the housing (1), and a three-dimensional washing tank connected to the second water tank (12).

6. The oil tank cleaning system according to claim 1, characterized in that: It also includes gas alarms (13).

7. The oil tank cleaning system according to claim 1, characterized in that: A filter is provided at the front end of the first chemical pump (4).

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