Automatic cleaning device for large storage tank

Abstract

This utility model relates to an automatic cleaning device for large storage tanks, comprising: a base, a base support system, a pole system, a rotating seat, a rotating seat support system, an adjustment system, a power system, and a cleaning system. This device offers advantages such as convenient operation, high automation, strong safety, lightweight design, wide applicability, low operating costs and labor intensity, short construction period, high tank utilization rate, good cleaning effect, flexible cleaning effect acceptance methods, and no risk of operator poisoning. It is suitable for large storage tanks of various sizes and can effectively solve various problems in existing tank cleaning technologies.

Description

Technical Field

[0001] This utility model relates to the field of hollow equipment cleaning technology, and in particular to an automatic cleaning device for large storage tanks. Background Technology

[0002] Fuel is typically stored in tanks, which are categorized according to different operating conditions: operating tanks, storage tanks, settling tanks, and relay tanks. They are primarily used for storing aviation kerosene, diesel, fuel oil, gasoline, and other petroleum products. After a period of use, impurities in the fuel accumulate on the bottom, walls, and top of the tank. When changing the stored fuel according to regulations, the bottom, walls, and top of the tank will also retain the previously stored fuel. All of these factors contribute to increased impurities and reduced quality of the stored fuel, affecting both fuel quality and operational safety. According to relevant storage tank regulations, tanks must be cleaned regularly, every 0.5 to 7 years, depending on the operating conditions and the type of fuel stored, or based on tank maintenance or changes in fuel type.

[0003] Existing technologies often employ manual cleaning of storage tanks to address the aforementioned tank cleaning issues. However, considering that the tank volume is mostly around 5000 cubic meters... 3 -20000M 3 Furthermore, the manholes at the bottom and top of the tank are only 61cm in size. Manual cleaning requires at least three operators to enter the tank. Two cleaners stand at either end of a lifting platform to manually clean the inside, while at least one operator manually adjusts the platform's height and rotation from below. This purely manual method of cleaning is inefficient. When cleaning the tank's dome, the platform must be repeatedly lowered and lowered according to the dome's dimensions, and any excessively long platforms must be dismantled before being raised back to the desired cleaning position. Manual tank cleaning suffers from drawbacks such as high labor intensity, poor safety, long construction periods, mediocre cleaning results, and the risk of operator poisoning due to inhalation of harmful gases. It increases storage, cleaning, and safety costs, hinders expanded production and improved tank utilization efficiency, and fails to meet national security and societal production needs.

[0004] Therefore, there is an urgent need in the existing technology for a cleaning device that is easy to operate, highly automated, safe, lightweight, widely applicable, and low in operating cost. Utility Model Content

[0005] The purpose of this invention is to provide an automatic cleaning device for large storage tanks to overcome the aforementioned defects in the prior art.

[0006] To achieve the above objectives, this utility model provides an automatic cleaning device for large storage tanks, comprising: a base, a base support system, a pole system, a rotating seat, a rotating seat support system, an adjustment system, and a cleaning system; a cylindrical sleeve is provided in the middle of the base, and connecting brackets are spaced apart along the outer edge of the bottom of the sleeve, each connecting bracket having a rectangular connection port; the base support system has multiple base brackets, each having a rectangular boss at one end and a rectangular connection port at the other end, the rectangular boss fitting into the rectangular connection ports of the base brackets and the connecting rod brackets; the pole system has multiple poles, each having an elliptical boss at one end. The other end is provided with an elliptical connection port, and the elliptical boss fits into the elliptical connection port; the bottom of the upright is fitted with the cylindrical sleeve and can be rotatably connected; the rotating seat is slidably mounted on the upright system; the rotating seat support system has multiple rotating seat supports, and the rotating seat supports are provided with connecting ends at both ends; one end of the adjustment system is movably mounted on the rotating seat support system, and the other end is connected to the cleaning system in an adjustable manner; the cleaning system is provided with a composite nozzle, and different sizes of composite nozzles can be replaced according to different cleaning requirements, and the interior of the storage tank is cleaned with high pressure using renewable fluid.

[0007] This invention utilizes a cleaning system that uses a renewable fluid medium, along with rotatable and vertically adjustable poles and rotating bases. By applying automated control methods such as remote control, it can not only achieve automatic cleaning of the inside of the storage tank, but also adapt to the cleaning of storage tanks of different sizes through modular combination, thus effectively solving the existing problems in cleaning storage tanks.

[0008] Preferably, the large storage tank automatic cleaning device further includes: a first power system, a second power system, and a third power system. The first power system is mounted on the base and connected to the upright system via a transmission component, driving the upright system to rotate horizontally. The second power system is mounted on the rotating seat and connected to the upright system via a transmission component, driving the rotating seat to move vertically. The third power system is mounted on the rotating seat support system, driving the adjustment system to move horizontally.

[0009] Preferably, a gear ring mounting position is provided on the surface of the upright near the elliptical connection port along the circumferential direction. Two semi-circular gear rings are installed at the gear ring mounting position of the bottommost upright, and the gear of the first power system meshes with the gear ring. A rectangular groove is provided on the surface of the upright along the axial direction. The sleeve is provided with a rectangular sleeve guide rail, which slides with the rectangular groove. A second rack is provided at the bottom of the rectangular groove, and the gear of the second power system meshes with the second rack. A third rack is provided on the upper surface of the rotating seat bracket, and the gear of the third power system meshes with the third rack.

[0010] Preferably, the rotating seat support consists of an upper support and a lower support, and the upper support and the lower support are connected by reinforcing ribs to form a quilt structure.

[0011] Preferably, the base support is rectangular in shape, with a length of 200-400 cm, a width of 8-15 cm, and a height of 8-15 cm; the connecting support is rectangular in shape, with a length of 20 cm, a width of 8-15 cm, and a height of 8-15 cm; the upright is cylindrical, with a length of 200-400 cm and a diameter of 20 cm; the rotating seat support is rectangular in shape, with a length of 200-400 cm, a width of 8-15 cm, and a height of 50 cm; and the rotating seat is a cylindrical sleeve with an inner diameter of 20 cm and a height of 100 cm.

[0012] Preferably, an angle iron is fixedly connected to the upper part of the sleeve and the connecting bracket, and the rectangular connecting port of the outermost base bracket is connected to a jack for horizontal adjustment.

[0013] Preferably, the adjustment system includes a first control arm, a second control arm, a third control arm, a first adjustment motor, a second adjustment motor, a third adjustment motor, and a fourth adjustment motor. One end of the first control arm is connected to the fourth adjustment motor, and the other end is connected to one end of the second control arm via the first adjustment motor. The other end of the second control arm is connected to one end of the third control arm via the second adjustment motor. The other end of the third control arm is connected to the cleaning system via the third adjustment motor. The fourth adjustment motor is connected to the third power system.

[0014] Preferably, the cleaning system includes a cleaning disc and a cleaning assembly. The cleaning disc is a circular disc with a concentric annular groove in the center. Soft brushes are arranged along the outer circumference of the cleaning disc to form a relatively sealed space between the cleaning assembly and the inner wall of the tank. The cleaning assembly is dumbbell-shaped and has two rectangular cleaning modules, each connected to a rotation center via a hollow connecting rod. The cleaning modules can rotate within the annular groove of the cleaning disc. Each cleaning module has multiple linearly arranged composite nozzles, with the axis of each composite nozzle forming an acute angle with the inner wall of the tank.

[0015] Preferably, the automatic cleaning device for large storage tanks further includes a control system and a renewable fluid compression system. The control system is electrically connected to the first power system, the second power system, the third power system, the first adjustment motor, the second adjustment motor, the third adjustment motor, the fourth adjustment motor, and the renewable fluid compression system. The control system can set the moving speed, adjustment angle, and working time of each system to achieve automatic cleaning of the interior of the large storage tank.

[0016] Preferably, the first, second, and third power systems all use a control module to control the stepper motor to drive the gear set or gear rack through a reducer; the large storage tank automatic cleaning device can install an inspection basket at the end of the rotating seat support. The inspection basket is a backrest seat with dimensions of 70cm in length, 60cm in width, and 100cm in height, and has armrests on both sides and a safety belt.

[0017] The advantages of this automatic cleaning device for large storage tanks are: convenient operation, high degree of automation, strong safety, lightweight, wide applicability, low operating cost and labor intensity, short construction period, high tank utilization rate, good cleaning effect, low operating cost, flexible cleaning effect acceptance method, and no risk of operator poisoning. Specifically:

[0018] 1. This utility model utilizes a modular design, making it highly adaptable. All components of this application can be moved through the manhole (61 cm in diameter) at the bottom of a large storage tank. Furthermore, the base support for fixing the base and the uprights for supporting the rotating seat are available in various sizes, allowing for coordinated combination and use according to the different internal dimensions of the large storage tanks that need to be cleaned.

[0019] 2. This utility model utilizes a control system design that features a high degree of automation, good safety, and low labor intensity. This application achieves automated cleaning of repetitive internal structures of large storage tanks by setting the movement speed, adjustment angle, and working time of each system through the control system. This avoids the risk of poisoning and the heavy labor involved in repeated lifting, lowering, and adjusting the platform length that occurs during manual cleaning.

[0020] 3. This utility model utilizes a renewable fluid medium, resulting in wide applicability, low operating costs, excellent cleaning effects, and a short construction period. This application uses renewable fluids such as air or water as the cleaning medium for high-pressure cleaning of the interior of large storage tanks, leading to low operating costs. The device features and can be fitted with composite nozzles of various sizes, suitable for different pressures and cleaning media, meeting diverse cleaning requirements and achieving different cleaning effects. The device can complete the entire cleaning process with a single installation, automatically cleaning the top and inner walls of large storage tanks without repeated disassembly. This results in a short construction period and high tank utilization. The cleaning operation is simple and training is quick, requiring minimal manpower and protective equipment, further reducing operating costs.

[0021] 4. This utility model utilizes a truss structure design for lightweight design. The rotating seat support uses a truss structure, which is lightweight and has high structural strength. The renewable fluid used as the cleaning medium is easy to pick up and does not need to be carried with the device, fully meeting the lightweight requirements of automatic cleaning devices for large storage tanks.

[0022] 5. This utility model offers a flexible method for detecting cleaning effectiveness. A camera device can be selected to replace the cleaning system for inspecting the cleaning effectiveness inside large storage tanks; alternatively, an inspection basket can be installed for manual inspection of the cleaning effectiveness inside large storage tanks. Specific areas can be cleaned supplementarily as needed to avoid over-cleaning and improve cleaning efficiency and effectiveness. Attached Figure Description

[0023] Figure 1 This is a front view of the automatic cleaning device for large storage tanks of this utility model, showing the cleaning operation of the sidewalls.

[0024] Figure 2 A front view of the automatic cleaning device for large storage tanks of this utility model in the process of cleaning the top wall;

[0025] Figure 3 This is a top view of the base and base support system of the large storage tank automatic cleaning device of this utility model;

[0026] Figure 4 This is a top view of the rotating base and rotating base support system of the automatic cleaning device for large storage tanks of this utility model;

[0027] Figure 5 This is a side view of the support pole of the automatic cleaning device for large storage tanks according to this utility model;

[0028] Figure 6 This is a top view of the support pole of the automatic cleaning device for large storage tanks according to this utility model;

[0029] Figure 7 This is a side view of the base support of the automatic cleaning device for large storage tanks according to this utility model.

[0030] Figure 8 This is a top view of the base support of the automatic cleaning device for large storage tanks according to this utility model;

[0031] Figure 9 This is a front view of the cleaning system of the automatic cleaning device for large storage tanks according to this utility model.

[0032] Figure 10 This is a front view of the cleaning components of the automatic cleaning device for large storage tanks according to this utility model.

[0033] Figure 11 This is a rear view of the cleaning components of the automatic cleaning device for large storage tanks according to this utility model.

[0034] Figure 12 This is a view showing the effect of manual inspection of the internal cleaning of a large storage tank using the automatic cleaning device for large storage tanks according to this utility model. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments and directional terms described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The following description, with reference to the accompanying drawings... Figure 1-12 The embodiments of this utility model will be described in detail below.

[0036] This utility model provides an automatic cleaning device for large storage tanks, comprising: a base 1, a base support system 2, a pole system 3, a rotating seat 4, a rotating seat support system 5, an adjustment system 6, and a cleaning system 7; the base 1 has a cylindrical sleeve 1.1 in the middle, and connecting brackets 1.2 are provided at 90° intervals along the outer edge of the bottom of the sleeve 1.1. The connecting brackets 1.2 are provided with rectangular connecting ports 2.4, and the bottoms of the sleeve 1.1 and the connecting brackets 1.2 are on the same plane; the base support system 2 has multiple base brackets 2.1, one end of which is provided with a rectangular boss 2.3, and the other end is provided with a rectangular connecting port 2.4. The rectangular connecting ports 2.4 of the base brackets 2.1 and the rectangular connecting ports 2.4 of the connecting brackets 1.2 have the same size, and the rectangular bosses 2.3 fit into the rectangular connecting ports 2.4 to achieve a detachable and stable connection; the pole system 3 has multiple poles 3.1, one end of which is provided with An elliptical boss 3.3 is provided at one end, and an elliptical connecting port 3.4 is provided at the other end. The elliptical boss 3.3 fits into the elliptical connecting port 3.4 to achieve a detachable and stable connection. The bottom of the upright 3.1 fits into the cylindrical sleeve 1.1. A thrust bearing is provided between the bottom of the upright 3.1 and the cylindrical sleeve 1.1. The upright 3.1 and the cylindrical sleeve 1.1 are rotatably connected. The rotating seat 4 is slidably mounted on the upright system 3. The rotating seat support system 5 has multiple rotating seat supports 5.1, and the rotating seat supports 5.1 have connecting ends at both ends. One end of the adjustment system 6 is movably mounted on the rotating seat support system 5, and the other end is adjustablely connected to the cleaning system 7. The cleaning system 7 is provided with a composite nozzle 11.1, and different sizes of composite nozzles 11.1 can be replaced according to different cleaning requirements to use renewable fluid high pressure to clean the inside of the storage tank.

[0037] The large storage tank automatic cleaning device further includes: a first power system 8, a second power system 9, and a third power system 10. The first power system 8 is mounted on the base 1 and connected to the upright system 3 through a transmission component, driving the upright system 3 to rotate horizontally. The second power system 9 is mounted on the rotating seat 4 and connected to the upright system 3 through a transmission component, driving the rotating seat 4 to move vertically. The third power system 10 is mounted on the rotating seat support system 5 and drives the adjustment system 6 to move horizontally.

[0038] The first power system 8, the second power system 9, and the third power system 10 all use a control module to control the stepper motor to drive the gear set or gear rack and other transmission components through the reducer.

[0039] The upright 3.1 has a gear ring mounting position on its surface near the elliptical connection port 3.4 along the circumferential direction. Two semi-circular gear rings 3.6 are installed at the gear ring mounting position on the bottom of the upright 3.1. The gear of the first power system 8 meshes with the gear rings 3.6. The upright 3.1 has a rectangular groove 3.5 on its axial direction. The sleeve 4 has a rectangular sleeve guide rail 4.1 that slides with the rectangular groove 3.5. A second rack 3.7 is provided at the bottom of the rectangular groove 3.5. The gear of the second power system 9 meshes with the second rack 3.7. A third rack is provided on the upper surface of the rotating seat bracket 5.1. The gear of the third power system 10 meshes with the third rack.

[0040] The sleeve 1.1 and the connecting bracket 1.2 are fixedly connected by bolts; the rotating seat bracket 5.1 consists of an upper bracket and a lower bracket, and the upper bracket and the lower bracket are connected by reinforcing ribs 5.3 to form a quilted structure, which increases the overall strength of the rotating seat bracket 5.1.

[0041] The base bracket 2.1 is generally rectangular, with a length of 200-400 cm, a width of 8-10 cm, and a height of 8-15 cm; the connecting bracket 1.2 is generally rectangular, with a length of 20 cm, a width of 8-15 cm, and a height of 8-15 cm; the upright 3.1 is generally cylindrical, with a length of 200-400 cm and a diameter of 20 cm; the rotating seat bracket 5.1 is generally rectangular, with a length of 200-400 cm, a width of 8-15 cm, and a height of 50 cm; the rotating seat 4 is a cylindrical sleeve with an inner diameter of 20 cm and a height of 100 cm.

[0042] Angle iron 1.3 is fixedly connected to the upper part of the connecting end of the sleeve 1.1 and the connecting bracket 1.2 by bolts; the rectangular connecting port 2.4 of the outermost base bracket 2.1 is connected to a horizontally adjustable jack 2.5 to eliminate the horizontal gap between the base bracket system 2 and the inner wall of the storage tank.

[0043] The adjustment system 6 includes a first control arm 6.1, a second control arm 6.2, a third control arm 6.3, a first adjustment motor 6.4, a second adjustment motor 6.5, a third adjustment motor 6.6, and a fourth adjustment motor 6.7. One end of the first control arm 6.1 is connected to the fourth adjustment motor 6.7, and the other end is connected to one end of the second control arm 6.2 through the first adjustment motor 6.4, which can drive the second control arm 6.2 to swing. The other end of the second control arm 6.2 is connected to one end of the third control arm 6.3 through the second adjustment motor 6.5, which can drive the third control arm 6.3 to swing. The other end of the third control arm 6.3 is connected to the cleaning system 7 through the third adjustment motor 6.6, which can drive the cleaning system 7 to swing. The fourth adjustment motor 6.7 is horizontally rotatable and connected to the third power system 10.

[0044] The cleaning system 7 includes a cleaning disc 12 and a cleaning assembly 13. The cleaning disc 12 is a disc with a concentric annular groove 12.1 in the center. Soft brushes 12.2 are arranged along the outer circumference of the cleaning disc 12 to form a relatively sealed space between the cleaning assembly 13 and the inner wall of the storage tank. The cleaning assembly 13 is dumbbell-shaped and has two rectangular cleaning modules 11, which are connected to a rotation center 11.3 via hollow connecting rods 11.2. The cleaning modules 11 can rotate in the annular groove 12.1 of the cleaning disc 12. Each cleaning module 11 is provided with multiple linearly arranged composite nozzles 11.1, and the axis of each composite nozzle 11.1 forms an acute angle with the inner wall of the storage tank. The cleaning assembly 13 with different composite nozzles 11.1 can be replaced according to different cleaning needs.

[0045] The automatic cleaning device for large storage tanks also includes a control system (not shown in the figure) and a renewable fluid compression system (not shown in the figure). The control system is electrically connected to the first power system 8, the second power system 9, the third power system 10, the first adjusting motor 6.4, the second adjusting motor 6.5, the third adjusting motor 6.6, the fourth adjusting motor 6.7 and the renewable fluid compression system. The control system can set the moving speed, adjustment angle and working time of each system to realize automatic cleaning of the interior of the large storage tank.

[0046] The automatic cleaning device for large storage tanks can be equipped with an inspection basket 14 at the end of the rotating seat support. The inspection basket 14 is a seat with a backrest, measuring 70cm in length, 60cm in width, and 100cm in height, and has armrests on both sides and a safety belt.

[0047] According to the appendix Figure 1-12 This invention briefly describes the installation and cleaning process of a large storage tank with a capacity of 5,000 cubic meters, an internal diameter of 23.64 meters, a wall height of 11.69 meters, a top height of 2.58 meters, and a total internal height of 14.27 meters.

[0048] Through the manhole at the bottom of the large storage tank (manhole diameter 61cm), install: 1.1 a sleeve with an inner diameter of 20cm and a height of 100cm; 1.2 four connecting brackets with a length of 20cm, a width of 15cm, and a height of 15cm; 2.1 twelve base brackets with a length of 380cm, a width of 15cm, and a height of 15cm; 4 angle irons; 3.6 two semi-circular toothed rings; 3.1 five uprights with a length of 290cm and a diameter of 20cm; and 6 other uprights with a length of... 5.1 A rotating support bracket with a diameter of 360cm, a width of 15cm, and a height of 50cm; 4. One rotating seat with an inner diameter of 20cm and a height of 100cm; 2.5 Four jacks; 6. Two sets of adjustment systems; 7. Two sets of cleaning systems; 8. One thrust bearing; 9. One primary power system; 10. Two secondary power systems; 11. One tertiary power system; 14. One inspection basket; 15. Two sets of traction cables; 16. Two pulleys; and 17. Related fluid pipelines and power lines for transporting fluids into the large storage tank.

[0049] Place the thrust bearing inside the bottom of sleeve 1.1. Secure the four connecting brackets 1.2, spaced 90° apart, to the outside of sleeve 1.1 with bolts. Secure the angle iron to the connection point between sleeve 1.1 and connecting brackets 1.2 with bolts, ensuring the bottom of sleeve 1.1 and connecting bracket 1.2 are on the same horizontal plane. Insert the rectangular boss 2.3 of base bracket 2.1 into the rectangular connection port 2.4 of connecting bracket 1.2 and secure it with bolts. Insert the rectangular boss 2.3 of another base bracket 2.1 into the rectangular connection port 2.4 of the previous base bracket 2.1 and secure it with bolts. Repeat this process for the other base brackets 2.1 in this set. Fix the jack 2.5 to the rectangular connection port 2.4 of the last base bracket 2.1. Adjust the size of the jack 2.5 to secure it to the inner wall of the large storage tank. Similarly, set up the other three sets of base brackets.

[0050] Two semi-circular gear rings 3.6 are installed at the gear ring mounting positions of the bottommost upright 3.1. The bottommost upright 3.1 is placed inside the sleeve 1.1. The first power system 8 is fixed to the sleeve 1.1 with bolts, so that the gears of the first power system 8 mesh with the two semi-circular gear rings 3.6. The rectangular groove 3.5 is aligned with the sleeve guide rail 4.1, and the rotating seat 4 is fitted onto the bottommost upright 3.1. The elliptical interface 3.4 at the bottom of another section of upright 3.1 is fitted onto the elliptical boss 3.3 at the top of the bottommost upright 3.1. The other three sections of upright 3.1 are set up in the same way. Install two pulleys 16 on the top of the topmost upright 3.1. First, insert the elliptical boss 3.3 on the top of the topmost upright 3.1 through the inspection hole on the top of the large storage tank. Then, fit the elliptical interface 3.4 at the bottom of the topmost upright 3.1 onto the elliptical boss 3.3 on the top of the upright 3.1 below it.

[0051] One end of the rotating seat bracket 5.1 is fixed to the rotating seat 4 with bolts, and the other end is connected to another rotating seat bracket 5.1. The second power system 9 is fixed to the rotating seat bracket 5.1 with bolts, so that the gear of the second power system 9 meshes with the second rack 3.7 of the upright 3.1. Similarly, the rotating arm bracket 5.1 on the other side and the second power system 9 on the other side are set up.

[0052] Engage the gear of the third power system 10 with the third rack on the upper surface of the rotating arm bracket 5.1, connect one end of the adjustment system 6 to the third power system 10 and the other end to the cleaning system 7, connect each control circuit to the control system, connect each water circuit of each cleaning system 7 to the water compression system, and complete the system equipment debugging.

[0053] The control system controls the third power system 10 to move to the end of the rotating arm support 5.1, controls the adjustment system 6 to cover the inner wall of the large storage tank with the cleaning plate 12 of the cleaning system 7, sets the gear rotation angular velocity of the first power system 8 to control the rotation angular velocity of the column system 3, sets the gear rotation angular velocity of the second power system 9 to control the lifting speed of the rotating seat 4, sets the water pressure of the composite nozzle 11.1, and starts the equipment to clean the inner wall of the large storage tank from the bottom to the top.

[0054] After the inner wall of the large storage tank is cleaned, the control system controls the third power system 10 to move appropriately towards the center, controls the cleaning disc 12 of the cleaning system 7 of the adjustment system 6 to cover the top of the inside of the large storage tank, sets the gear rotation angular velocity of the first power system 8 to control the rotation angular velocity of the column system 3, sets the gear rotation angular velocity of the second power system 9 to control the lifting speed of the rotating seat 4, sets the gear rotation angular velocity of the third power system 10 to control its speed of moving towards the center along the rotating seat support 5.1, sets the water pressure of the composite nozzle 11.1, and starts the equipment to gradually clean the top of the large storage tank from the outside to the inside.

[0055] After the inner wall and top of the large storage tank are cleaned, the control system controls the second power system 9 to lower the rotating arm support 5.1 to the bottom of the large storage tank. The fourth adjustment motor 6.7 of the adjustment system 6 is controlled to rotate horizontally by 90 degrees. The first adjustment motor 6.4, the second adjustment motor 6.5, and the third adjustment motor 6.6 are controlled in sequence to cover the bottom of the large storage tank with the cleaning disc 12 of the cleaning system 7. The rotational angular velocity of the gear of the first power system 8 is set again to control the rotational angular velocity of the column system 3. The rotational angular velocity of the gear of the third power system 10 is set to control its speed of movement from the center to both ends along the rotating support 5.1. The water pressure of the composite nozzle 11.1 is set. The equipment is started to gradually clean the bottom of the large storage tank from the inside to the outside.

[0056] The automated cleaning of the interior of large storage tanks removes residual wastewater. A camera device can be used to replace cleaning system 7 for automatic inspection of the cleaning effect; alternatively, a dedicated person can manually inspect the cleaning effect. Depending on the situation, additional cleaning may be performed on specific areas, or the entire cleaning process can be completed and the equipment dismantled.

[0057] When manually inspecting the cleaning effect inside a large storage tank, the adjustment system 6 and cleaning system 7 at one end of the rotating support 5.1, which has been lowered to the bottom, are removed and moved to the other end of the rotating support 5.1 as counterweights. An inspection basket 14 is installed at the end of the rotating support 5.1 where the adjustment system 6 and cleaning system 7 have been removed. The inspection basket is a seat with a backrest, measuring 70cm long, 60cm wide, and 100cm high, and has handrails on both sides and a safety belt. Traction cables 15 are fixed to the ends of the rotating support 5.1 and connected to the second power system 9 via pulleys 16 installed at the top of the top upright 3.1. The rotational angular velocity of the gears in the first power system 8 is set to control the rotational angular velocity of the column system 3, and the rotational angular velocity of the gears in the second power system 9 is set to control the lifting speed of the rotating support 4. The manual inspection of the cleaning effect inside the large storage tank is completed from the bottom upwards.

[0058] The automatic cleaning device for large storage tanks of this utility model has the advantages of convenient operation, high degree of automation, strong safety, good lightweight, strong applicability, low operating cost and labor intensity, short construction period, high storage tank utilization, good cleaning effect, flexible cleaning effect acceptance method, and no risk of operator poisoning. It is suitable for large storage tanks of various sizes and can effectively solve various problems in storage tank cleaning in the existing technology.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A large-scale storage tank automatic cleaning device characterized by include: The system comprises a base, a base support system, a pole system, a rotating seat, a rotating seat support system, an adjustment system, and a cleaning system. The base has a cylindrical sleeve in the middle, and connecting brackets are spaced along the outer edge of the sleeve's bottom. Each connecting bracket has a rectangular connection port. The base support system has multiple base brackets, each with a rectangular boss at one end and a rectangular connection port at the other end. The rectangular boss mates with the rectangular connection ports of the base brackets and connecting rod brackets. The pole system has multiple poles, each with an elliptical boss at one end and an elliptical connection port at the other end. The elliptical boss mates with the elliptical connecting port; the bottom of the upright mates with the cylindrical sleeve and is rotatably connected; the rotating seat is slidably mounted on the upright system; the rotating seat support system has multiple rotating seat supports, each with a connecting end at both ends; one end of the adjustment system is movably mounted on the rotating seat support system, and the other end is adjustablely connected to the cleaning system; the cleaning system is equipped with composite nozzles, and different sizes of composite nozzles can be replaced according to different cleaning requirements to use regenerative fluid for high-pressure cleaning of the inside of the storage tank.

2. The automatic cleaning device for a large storage tank according to claim 1, characterized by Also includes: The system comprises a first power system, a second power system, and a third power system. The first power system is mounted on the base and connected to the upright system via a transmission component, driving the upright system to rotate horizontally. The second power system is mounted on the rotating seat and connected to the upright system via a transmission component, driving the rotating seat to move vertically. The third power system is mounted on the rotating seat support system, driving the adjustment system to move horizontally.

3. The apparatus for automatically cleaning a large storage tank according to claim 2, characterized by: The upright has a gear ring mounting position along the circumference near the elliptical connection port. Two semi-circular gear rings are installed at the gear ring mounting position at the bottom of the upright. The gear of the first power system meshes with the gear ring. The upright has a rectangular groove along the axial direction. The sleeve has a rectangular sleeve guide rail that slides in the rectangular groove. A second rack is provided at the bottom of the rectangular groove. The gear of the second power system meshes with the second rack. A third rack is provided on the upper surface of the rotating seat bracket. The gear of the third power system meshes with the third rack.

4. The apparatus for automatically cleaning a large storage tank according to claim 3, characterized by: The sleeve and the connecting bracket are fixedly connected; the rotating seat bracket consists of an upper bracket and a lower bracket, and the upper bracket and the lower bracket are connected by reinforcing ribs to form a quilting structure.

5. The automatic cleaning device for large storage tanks according to claim 4, characterized in that: The base support is generally rectangular, with a length of 200-400 cm, a width of 8-15 cm, and a height of 8-15 cm; the connecting support is generally rectangular, with a length of 20 cm, a width of 8-15 cm, and a height of 8-15 cm; the upright is generally cylindrical, with a length of 200-400 cm and a diameter of 20 cm; the rotating seat support is generally rectangular, with a length of 200-400 cm, a width of 8-15 cm, and a height of 50 cm; the rotating seat is a cylindrical sleeve with an inner diameter of 20 cm and a height of 100 cm.

6. The apparatus for automatically cleaning a large storage tank according to claim 5, characterized by: An angle iron is fixedly connected to the upper part of the sleeve and the connecting bracket, and the rectangular connecting port of the outermost base bracket is connected to a jack for horizontal adjustment.

7. The apparatus for automatically cleaning a large storage tank according to claim 6, characterized by: The adjustment system includes a first control arm, a second control arm, a third control arm, a first adjustment motor, a second adjustment motor, a third adjustment motor, and a fourth adjustment motor. One end of the first control arm is connected to the fourth adjustment motor, and the other end is connected to one end of the second control arm via the first adjustment motor. The other end of the second control arm is connected to one end of the third control arm via the second adjustment motor. The other end of the third control arm is connected to the cleaning system via the third adjustment motor. The fourth adjustment motor is connected to the third power system.

8. The apparatus according to claim 7, wherein: The cleaning system includes a cleaning disc and a cleaning assembly. The cleaning disc is a circular disc with a concentric annular groove in the center. Soft brushes are arranged along the outer circumference of the cleaning disc to form a relatively sealed space between the cleaning assembly and the inner wall of the storage tank. The cleaning assembly is dumbbell-shaped and has two rectangular cleaning modules, each connected to a rotation center via a hollow connecting rod. The cleaning modules can rotate within the annular groove of the cleaning disc. Each cleaning module has multiple linearly arranged composite nozzles, and the axis of each composite nozzle forms an acute angle with the inner wall of the storage tank.

9. The apparatus for automatically cleaning a large storage tank according to claim 8, characterized by: It also includes a control system and a renewable fluid compression system. The control system is electrically connected to the first power system, the second power system, the third power system, the first adjustment motor, the second adjustment motor, the third adjustment motor, the fourth adjustment motor and the renewable fluid compression system. It can set the moving speed, adjustment angle and working time of each system to realize automatic cleaning of the inside of large storage tanks.

10. The apparatus for automatically cleaning a large storage tank according to claim 9, wherein: The first, second, and third power systems all use a control module to control the stepper motor to drive the gear set or gear rack through a reducer; the cleaning device can install an inspection basket at the end of the rotating seat bracket. The inspection basket is a backrest seat with dimensions of 70cm in length, 60cm in width, and 100cm in height, and has armrests on both sides and a safety belt.

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