Tank cleaning system

Abstract

The invention discloses a tank cleaning system which comprises a frame and nozzles, the frame is provided with a lifting frame moving in the vertical direction, the nozzles move along with the lifting frame, the tank cleaning system further comprises a cleaning rod arranged in the vertical direction, the lifting frame is fixedly connected with a supporting sleeve, the cleaning rod is coaxially and rotatably connected with the supporting sleeve, and the nozzles are all located on the side, in the length direction, of the cleaning rod. The multiple nozzles are arranged along the shape of the inner wall of the tank body, when the cleaning rod rotates, the washing tracks of all the nozzles cover the inner surface of the tank body, the cleaning rod is fixedly connected with a liquid supply pipe communicating with the nozzles, a plurality of sealing rings are arranged in the supporting sleeve, and corrosion-resistant materials are added to the sealing rings. All the sealing rings are arranged on the outer side of the cleaning rod in a sleeving mode and attached to the cleaning rod, a closed annular cavity is formed between every two adjacent sealing rings, the annular cavities are arranged in the circumferential direction of the cleaning rod, the end, away from the spray head, of the liquid supply pipe is located in the cleaning rod and communicates with any annular cavity, and the liquid supply device communicates with the annular cavity connected with the liquid supply pipe. The cleaning device has the effect of improving the cleaning efficiency of the inner surface of the tank body while saving the cleaning liquid.

Description

Technical Field

[0001] The invention relates to the field of cleaning equipment, in particular to a tank cleaning system. Background Art

[0002] Paint is a liquid or solid material used to coat the surface of an object to protect and decorate the object. In the process of paint production and manufacturing, various tank containers are needed for temporary storage or mixing processing. Since the paint is sticky, after the paint is discharged from the tank, some of the paint will adhere to the inner wall of the tank. The tank needs to be cleaned after completing a round of work. At present, manual cleaning is generally used in the industry to clean the tank, but because some special paints are sticky, organic solvents are needed to dissolve the paint during cleaning. However, organic solvents are easy to evaporate into the air. If they are not properly protected, they will affect the health of the cleaning personnel. In addition, the organic solvent gas will form an explosive mixed gas after mixing with the air, which poses a safety hazard of combustion and explosion.

[0003] The existing cleaning equipment usually cleans the inner surface of the tank body mainly by flushing. For related technologies, please refer to the Chinese patent with announcement number CN218014680U, which discloses a physical and chemical combination device for cleaning a phosphoric acid tank, including a phosphoric acid tank, a motor is rotatably installed on the top of the phosphoric acid tank, a mounting mechanism is clamped on the top of the phosphoric acid tank, a cleaning mechanism is fixedly installed inside the mounting mechanism, an output shaft is installed on the motor, a rotating block is fixedly installed on the motor through the output shaft, and the mounting mechanism includes a buckle, the buckle is plugged into the inside of the side of the phosphoric acid tank, a bar is fixedly installed on the right side of the buckle, and a pin is fixedly installed on the right side of the bar. The inner wall of the phosphoric acid tank can be cleaned by a brush and a cleaning liquid, which is convenient and fast, and the physical and chemical combination makes the phosphoric acid tank clean more fully, and the cleaning mechanism can be quickly installed and disassembled, so that the device can be quickly moved from different phosphoric acid tanks, convenient for taking out the cleaning mechanism, and repairing and cleaning the cleaning machine itself.

[0004] With regard to the above-mentioned related technologies, when cleaning the inner wall of the tank body, it is necessary to drive the rotary block to rotate through the motor, and then drive the cleaning cylinder and the air outlet plate to move through the rotary block. When the cleaning cylinder moves, the inner wall of the tank body is cleaned through the cooperation of the first brush and the water outlet pipe. However, the water in the cleaning cylinder needs to be input from the outside through the water inlet pipe. Therefore, the water inlet pipe needs to be connected to the external cleaning liquid supply system. When the rotary block drives the cleaning cylinder to rotate, the water inlet pipe rotates with the cleaning cylinder around the motor output shaft. During this process, if the water inlet pipe remains connected to the external liquid supply system, it will drive the liquid supply system to move. When the rotary block rotates a large number of times in a single direction, it is easy to cause the liquid supply pipes of the liquid supply system to entangle with each other, affecting the normal use of the cleaning system. At this time, if the motor is controlled to drive the rotating block to rotate back and forth in order to prevent the external liquid supply pipes from being entangled with each other, the load on the motor will increase and affect the normal use of the motor; in addition, if the water inlet pipe is cut off from the external liquid supply system after the cleaning liquid is input into the cleaning cylinder through the water inlet pipe, then when the cleaning liquid stock in the cleaning cylinder decreases, the water inlet pipe needs to be connected to the external liquid supply system again, which is inconvenient to use. Summary of the invention

[0005] In order to solve the above-mentioned problems and improve the convenience of cleaning the tank body, the present application provides a tank body cleaning system.

[0006] The present application provides a tank cleaning system, which adopts the following technical solutions: A tank cleaning system comprises a frame and a nozzle, wherein the frame is vertically slidably connected to a lifting frame, and the frame is provided with a driving member for driving the lifting frame to move, the nozzle moves synchronously with the lifting frame, and the frame is provided with a liquid supply device for conveying cleaning liquid to the nozzle, and also comprises a cleaning rod, wherein the cleaning rod is vertically arranged, the lifting frame is fixedly connected to a supporting sleeve, the upper end of the cleaning rod is located in the supporting sleeve and is coaxially rotatably connected with the supporting sleeve, a plurality of nozzles are all located on one side of the cleaning rod along the length direction, and the nozzles are arranged along the shape of the inner wall of the tank body, when the cleaning rod rotates, the flushing track of the nozzle covers the inner surface of the tank body, the cleaning rod is fixedly connected to a liquid supply pipe connected to the nozzle, a plurality of sealing rings are provided in the supporting sleeve along the axial direction, the sealing rings are added with corrosion-resistant materials, all the sealing rings are sleeved on the outer side of the cleaning rod and fit with the cleaning rod, a closed annular cavity is formed between two adjacent sealing rings, the annular cavity is arranged along the circumference of the cleaning rod, an end of the liquid supply pipe away from the nozzle is located in the cleaning rod and is connected with any annular cavity, and the liquid supply device is connected with the annular cavity connected with the liquid supply pipe.

[0007] By adopting the above technical solution, the frame is used to support and guide the lifting frame, and when the driving part is working, the lifting part drives the support sleeve and the cleaning rod to move. The tank body is placed under the cleaning rod, and when the cleaning rod moves down, it drives all the nozzles to enter the tank body, and the liquid supply device transports the cleaning liquid to the annular cavity where the liquid supply pipe is located. At this time, the sealing rings on both sides of the annular cavity block and guide the cleaning liquid, so that the cleaning liquid flows to the liquid supply pipe through the annular cavity, and the liquid inlet pipe and the corresponding annular cavity are always connected during the rotation of the cleaning rod. The cleaning liquid enters the nozzle along the liquid supply pipe and sprays toward the inner wall of the tank body along the nozzle, and then flushes the paint on the inner wall. When the cleaning rod rotates one circle, all the nozzles cooperate to complete the cleaning of the inner wall of the tank body, and the flushing range covers the inner surface of the tank body. The side wall and the bottom of the tank body are cleaned at the same time. Less cleaning liquid is used during cleaning, which is conducive to improving the cleaning effect of the tank body and is more convenient to use.

[0008] Optionally, a cleaning brush is provided on one side of the cleaning rod along the length direction, and the cleaning brush is arranged according to the shape of the inner wall of the tank body. When the cleaning rod rotates, the moving track of the cleaning brush covers the inner surface of the tank body.

[0009] By adopting the above technical solution, when the cleaning rod is located inside the tank, the cleaning brush contacts the inner surface of the tank. When the cleaning rod rotates, it drives the cleaning brush to clean the inner wall of the tank, which is beneficial to improve the cleaning effect of the inner wall of the tank and further improve the cleaning efficiency.

[0010] Optionally, an adjusting member is provided between the cleaning rod and the cleaning brush, and the adjusting member is used to drive the cleaning brush to move closer to or away from the inner wall of the tank.

[0011] By adopting the above technical solution, when the cleaning rod is moved into the tank body, the adjusting part drives the cleaning brush to be close to the cleaning rod, thereby reducing the probability of collision between the cleaning brush and the cleaning rod. When the cleaning brush is located in the tank body, the adjusting part drives the cleaning brush to fit the inner wall of the tank body, which is beneficial to improve the cleaning effect of the cleaning brush when it is moving.

[0012] Optionally, the adjusting member is a pneumatic push rod, the end of the pneumatic push rod away from the output end is fixedly connected to the cleaning rod, and the output end of the pneumatic push rod is fixedly connected to the cleaning brush, the cleaning rod is provided with an air pipe for driving the pneumatic push rod to work, one end of the air pipe away from the pneumatic push rod is located inside the cleaning rod and is connected to the annular cavity, a number of annular cavities are provided, the air pipe and the liquid supply pipe are respectively connected to different annular cavities, an air supply part is fixedly provided on the upper end of the sealing cover, and the air supply part is connected to the annular cavity connected to the air pipe.

[0013] By adopting the above technical solution, during the rotation of the cleaning rod, the air pipe remains connected with the corresponding annular cavity. At the same time, the air supply component compresses the external gas and inputs it into the annular cavity where the air pipe is located. The air flow flows into the air pipe along the annular cavity, and then drives the pneumatic push rod to work through the air pipe, so that the pneumatic push rod drives the cleaning brush to move. During the process of adjusting the cleaning brush, no electric control structure is required in the tank body, which is beneficial to improving the safety when cleaning the paint.

[0014] Optionally, a guide rod is fixedly provided on one side of the cleaning brush close to the cleaning rod, all guide rods are arranged parallel to the output end of the pneumatic hydraulic cylinder, and the support frame is provided with a guide block corresponding to the guide rod, and the guide rod passes through the guide block and is slidably connected to the guide block.

[0015] By adopting the above technical solution, when the pneumatic push rod drives the cleaning brush to move, the guide rod and the guide block cooperate to guide the cleaning brush, which is beneficial to improving the movement stability of the cleaning brush.

[0016] Optionally, two groups of compression rings are axially arranged in the support sleeve, all the sealing rings are located between the two groups of compression rings, the sealing rings close to the compression rings are in contact with the compression rings, and a bracket for limiting the axial displacement of the sealing rings is arranged in the annular cavity.

[0017] By adopting the above technical solution, the bracket limits the sealing rings at both ends of the annular cavity, thereby reducing the probability of the sealing rings shifting along the axial direction. The two sets of compression rings cooperate to limit the axial displacement of all sealing rings, which is beneficial to improving the overall installation stability of the sealing rings.

[0018] Optionally, a sealing cover is fixedly provided at the lower end of the support sleeve along the circumferential direction, the lifting frame is fixedly connected to the sealing cover, the sealing cover is adapted to the tank body, and the tank body is sealed when the sealing cover and the upper end of the tank body are within the working range, and the cleaning brush is located below the sealing cover.

[0019] By adopting the above technical solution, when cleaning the tank body, the tank body is sealed by the sealing cover, thereby reducing the probability of the cleaning liquid in the tank body splashing out of the tank body.

[0020] Optionally, the frame is provided with an upper sensing switch and a lower sensing switch from top to bottom, and the lifting frame is located between the upper sensing switch and the lower sensing switch. When the lifting frame moves into the working range of the upper sensing switch, the upper sensing switch is triggered, and the lifting cylinder stops at this time, and the height of the lower end of the cleaning rod is higher than the height of the tank body; when the lifting frame moves into the working range of the lower sensing switch, the lower sensing switch is triggered, and the lifting cylinder stops at this time, and the sealing cover fits with the upper end of the tank body.

[0021] By adopting the above technical solution, in the initial state, the lifting cylinder drives the sealing cover and the cleaning rod to move upward through the lifting frame, so that the cleaning rod avoids the tank body, which is convenient for placing the tank body under the sealing cover. At the same time, the upper sensing switch is used to limit the moving range of the lifting frame when it moves upward, thereby reducing the probability of collision with other pipelines due to excessive upward movement of the lifting frame; when the lifting cylinder drives the lifting frame to move downward, the lower sensing switch is used to limit the maximum displacement of the lifting frame when it descends. Before the lower sensing switch is triggered, the liquid supply device is not started, thereby reducing the probability of the cleaning liquid spraying onto the outside of the tank body and improving cleaning safety.

[0022] Optionally, the frame is provided with two groups of clamping plates, the two clamping plates are symmetrically arranged around the axis of the cleaning rod, and one end of the clamping plates in the length direction is hinged to the frame laterally, the hinges of the two clamping plates are located on the same side of the cleaning rod, one end of the clamping plate away from the hinges is connected to a push rod for laterally rotation, and one end of the push rod away from the clamping plate is connected to a connecting rod for laterally rotation, and one end of the connecting rod away from the push rod is hinged to the frame, and the frame is connected to a clamping cylinder corresponding to the clamping plate for laterally rotation, and a connecting block is fixed to the output end of the clamping cylinder, and the connecting block, the push rod and the connecting rod are all connected for rotation around the same axis.

[0023] By adopting the above technical solution, the clamping cylinder drives the connecting block to move when it is working, so that the connecting block drives the clamping plate to move through the push rod and the connecting rod. Before cleaning the tank body, the tank body is placed between the two clamping plates. After the two clamping plates are close to each other and clamp the tank body, the tank body and the cleaning rod are coaxial, so that the cleaning brush maintains contact with the inner wall of the tank body during rotation, which is beneficial to improve the cleaning effect when cleaning the tank body.

[0024] Optionally, a counterweight is fixedly provided on one side of the cleaning rod away from the support frame, and the counterweight matches the weight of the cleaning brush, the support frame, the nozzle and the adjusting member to balance the load-bearing capacity of the cleaning rod.

[0025] By adopting the above technical solution, the counterweight block balances the center of gravity of the cleaning rod, which is beneficial to improving the stability of the cleaning rod when it rotates.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The frame is used to support and guide the lifting frame. When the driving part is working, the lifting part drives the support sleeve and the cleaning rod to move. The tank body is placed under the cleaning rod. When the cleaning rod moves downward, it drives all the nozzles into the tank body. The liquid supply device transports the cleaning liquid into the annular cavity where the liquid supply pipe is located. At this time, the sealing rings on both sides of the annular cavity block and guide the cleaning liquid, so that the cleaning liquid flows through the annular cavity to the liquid supply pipe, and the liquid inlet pipe and the corresponding annular cavity are always connected during the rotation of the cleaning rod. The cleaning liquid enters the nozzle along the liquid supply pipe and sprays toward the inner wall of the tank body along the nozzle, thereby flushing the paint on the inner wall. When the cleaning rod rotates one circle, all the nozzles cooperate to complete the cleaning of the inner wall of the tank body, and the flushing range covers the inner surface of the tank body. The side walls and bottom of the tank body are cleaned at the same time. Less cleaning liquid is used during cleaning, which is beneficial to improve the cleaning effect of the tank body and is more convenient to use. 2. In the initial state, the lifting cylinder drives the sealing cover and the cleaning rod to move upward through the lifting frame, so that the cleaning rod avoids the tank body, which is convenient for placing the tank body under the sealing cover. At the same time, the upper sensing switch is used to limit the moving range of the lifting frame when it moves upward, reducing the probability of collision with other pipelines due to excessive upward movement of the lifting frame; when the lifting cylinder drives the lifting frame to move downward, the lower sensing switch is used to limit the maximum displacement of the lifting frame when it descends, so that the sealing cover blocks the tank body while reducing the probability of excessive squeezing between the sealing cover and the tank body, thereby improving the convenience of cleaning the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 It is a schematic diagram intended to highlight the connection between the clamping plate and the clamping cylinder.

[0029] Figure 3 It is a schematic diagram intended to highlight the connection structure between the cleaning rod and the cleaning brush.

[0030] Figure 4 is a schematic diagram intended to highlight the location of the seal.

[0031] Explanation of the reference numerals: 1. frame; 11. lifting frame; 12. driving member; 13. liquid supply device; 14. air supply member; 151. upper induction switch; 152. lower induction switch; 16. clamping plate; 161. push rod; 162. connecting rod; 17. clamping cylinder; 171. connecting block; 18. sliding rod; 2. nozzle; 3. cleaning rod; 31. liquid supply pipe; 32. cleaning brush; 321. guide rod; 33. adjusting member; 34. air pipe; 35. supporting frame; 351. guide block; 36. counterweight; 4. supporting sleeve; 40. annular cavity; 41. sealing ring; 42. pressure ring; 43. bracket; 44. sealing cover; 451. liquid inlet; 452. air inlet; 46. rotating member. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] The embodiment of the present application discloses a tank cleaning system.

[0034] Example: Reference Figure 1 and Figure 2 A tank cleaning system includes a frame 1, which is hollow and vertically slidably connected to a plurality of lifting frames 11, which are arranged circumferentially along the frame 1, and vertically fixedly connected to slide bars 18 corresponding to the lifting frames 11, all of which are parallel to each other, and all of which pass through the lifting frames 11 and are slidably connected to the lifting frames 11. The frame 1 is provided with a driving member 12 corresponding to the lifting frames 11, which is a lifting cylinder, which is arranged vertically, and the output end of the lifting cylinder is fixedly connected to the support frame 35, and the lifting cylinder drives the lifting frames 11 to move along the slide bars 18 when working.

[0035] Reference Figure 1 and Figure 3 The frame 1 is also provided with a sealing cover 44, which is located between all the lifting frames 11 and is connected to all the lifting frames 11. When the lifting frames 11 move, the sealing cover 44 is driven to move. A support sleeve 4 is fixedly provided at the upper end of the sealing cover 44. When the sealing cover 44 moves, the support sleeve 4 is driven to move. The sealing cover 44 is rotatably connected with a cleaning rod 3. The upper end of the cleaning rod 3 passes through the sealing cover 44 and is located in the support sleeve 4. The cleaning rod 3 is coaxially rotatably connected with the support sleeve 4. A support frame 35 is fixedly provided at one side of the lower end of the cleaning rod 3 along the length direction. The support frame 35 is located below the sealing cover 44. When the cleaning rod 3 moves, the support frame 35 is driven to move. A rotating member 46 for driving the cleaning rod 3 to rotate is provided at the upper end of the support sleeve 4. The rotating member 46 includes a motor and a reducer. The motor is installed at the upper end of the support sleeve 4 and is connected to the cleaning rod 3 through the reducer. When the motor is working, the cleaning rod 3 is driven to rotate through the reducer.

[0036] Reference Figure 1 and Figure 2 , the frame 1 is provided with an inlet and outlet along one side in the horizontal direction. When cleaning the tank body, the tank body is moved into the frame 1 along the inlet and outlet. The frame 1 is provided with two sets of clamping plates 16. The end of the clamping plate 16 away from the inlet and outlet is hinged to the frame 1 in the horizontal direction. The frame 1 is provided with a clamping cylinder 17 corresponding to the clamping plate 16 one by one. The clamping cylinder 17 is located on the side where the two clamping plates 16 are away from each other. The clamping cylinder 17 is rotatably connected to the frame 1 in the horizontal direction, and the frame 1 provides support for the clamping cylinder 17. A connecting block 171 is fixed at the output end of the clamping cylinder 17. The clamping plate 16 is rotatably connected to the push rod 161 in the horizontal direction. The end of the push rod 161 away from the clamping plate 16 is hinged to the connecting block 171. When the output end of the clamping cylinder 17 moves, the clamping plate 16 is driven to rotate around the hinge between itself and the frame 1 through the connecting block 171 and the push rod 161.

[0037] Reference Figure 1 and Figure 2 , the end of the push rod 161 away from the clamping plate 16 is hinged with a connecting rod 162 in the transverse direction, and the rotation axes of the connecting rod 162, the connecting block 171 and the push rod 161 are coaxial. The end of the connecting rod 162 away from the push rod 161 is hinged to the frame 1. The frame 1 limits the clamping plate 16 through the connection rod 162 and the push rod 161, which is conducive to improving the rotation stability of the clamping plate 16. In the initial state, the ends of the two clamping plates 16 close to the inlet and outlet are far away from each other. Before cleaning the tank body, the tank body is placed between the two clamping plates 16. At this time, the two clamping plates 16 are driven to approach each other by the clamping cylinder 17. The side of the two clamping plates 16 close to each other is set along an arc, and the arc is adapted to the outer circle of the tank body. When the two clamping plates 16 contact the tank body, the tank body is clamped and positioned. At this time, the tank body is located directly below the cleaning rod 3.

[0038] Reference Figure 1 and Figure 3 A support frame 35 is fixedly arranged at the lower end of the cleaning rod 3. When the cleaning rod 3 moves, the support frame 35 is driven to move. A cleaning brush 32 is arranged at one end of the support frame 35 away from the cleaning rod 3. The cleaning brush 32 is arranged according to the shape of the inner wall of the tank body. A plurality of guide rods 321 are fixedly arranged on the side of the cleaning brush 32 close to the cleaning rod 3. The guide rods 321 are tilted from bottom to top along the direction of the cleaning brush 32 pointing to the cleaning rod 3. A guide block 351 corresponding to the guide rod 321 is fixedly arranged on the support frame 35. The guide rod 321 passes through the guide block 351 along the axial direction and is slidably connected to the guide block 351. The cleaning rod 3 is provided with an adjusting member 33 for driving the cleaning brush 32 to move along the axial direction of the guide rod 321. In the initial state, the cleaning brush 32 is located close to the cleaning rod 3.

[0039] Reference Figure 1 and Figure 3The upper end of the frame 1 is equipped with an upper induction switch 151, and the lower end is equipped with a lower induction switch 152. The moving range of the lifting frame 11 is between the upper induction switch 151 and the lower induction switch 152. The upper induction switch 151 and the lower induction switch 152 are both connected to the lifting cylinder. When the upper induction switch 151 and the lower induction switch 152 are triggered, the lifting cylinder is controlled to stop. Before placing the can body under the cleaning rod 3, the sealing cover 44 and the cleaning rod 3 need to be driven upward by the lifting frame 11 so that the cleaning rod 3 can avoid the can body.

[0040] Reference Figure 1 and Figure 3 , the lifting frame 11 gradually approaches the upper induction switch 151 during the upward movement. When the height of the lower end of the cleaning rod 3 is higher than the tank body, the lifting frame 11 triggers the upper induction switch 151, and the lifting frame 11 stops moving. When the tank body is located below the cleaning rod 3 and is clamped by the clamping plate 16, the lifting frame 11 is operated to drive the cleaning rod 3 to move downward, so that the cleaning rod 3 enters the tank body. When the sealing cover 44 contacts the upper end of the tank body and completes the blocking of the tank body opening, the lifting frame 11 triggers the lower induction switch 152, so that the lifting cylinder stops.

[0041] Reference Figure 1 and Figure 3 , through the cooperation of the upper sensing switch 151 and the lower sensing switch 152, the range of movement of the lifting frame 11 is limited, thereby reducing the probability of the moving range being too large or too small when the cleaning rod 3 is about to move, thereby improving the convenience of using the cleaning rod 3, and reducing the probability of the lifting frame 11 colliding with the frame 1 or other mechanisms. The upper sensing switch 151 and the lower sensing switch 152 can be contact switches or infrared sensing switches. The lower sensing switch 152 is electrically connected to the liquid supply system. Before the lower sensing switch 152 is triggered, the sealing cover 44 does not seal the tank body. At this time, the liquid supply device 13 is not started, and no cleaning liquid is sprayed from the nozzle 2, which is beneficial to reduce the probability of the cleaning liquid spraying to the outside of the tank body and improve the cleaning safety.

[0042] Reference Figure 1 and Figure 3 , a plurality of nozzles 2 are arranged on one side of the cleaning rod 3, and the plurality of nozzles 2 are arranged along the length direction of the cleaning brush 32, and all the nozzles 2 are arranged along the shape of the inner wall of the tank body. The cleaning rod 3 is fixedly provided with a liquid supply pipe 31, and one end of the liquid supply pipe 31 is fixedly provided with a plurality of branch pipes, and the branch pipes correspond to the nozzles 2 one by one, and all the nozzles 2 are connected to the corresponding branch pipes. The cleaning rod 3 is hollow, and the end of the liquid supply pipe 31 away from the nozzle 2 is located in the cleaning rod 3 and extends into the supporting sleeve 4. The number of the liquid supply pipes 31 is set according to the number of the nozzles 2. In this embodiment, the liquid supply pipes 31 are provided in three groups. In other embodiments, the liquid supply pipes 31 can also be one group, two groups, four groups or more.

[0043] Reference Figure 3 and Figure 4 A plurality of sealing rings 41 are arranged in the support sleeve 4 along the axial direction. All the sealing rings 41 are sleeved on the outside of the cleaning rod 3 and are rotatably connected to the cleaning rod 3. Two groups of compression rings 42 are installed in the support sleeve 4. All the sealing rings 41 are located between the two groups of compression rings 42. The support sleeve 4 limits the displacement of the sealing rings 41 along the axial direction through the compression rings 42. The sealing rings 41 are arranged in groups of two, and the two sealing rings 41 in the same group are far away from each other. At this time, the two sealing rings 41 in the same group cooperate with the inner wall of the support sleeve 4 and the outer circle of the cleaning rod 3 to form a closed annular cavity 40.

[0044] Reference Figure 3 and Figure 4 A bracket 43 is provided between the two sealing rings 41 of the same group. The two ends of the bracket 43 along the vertical direction are respectively in contact with the two sealing rings 41. The bracket 43 supports the sealing ring 41, thereby reducing the probability of the sealing ring 41 being offset in the axial direction and improving the structural stability of the annular cavity 40. The cleaning rod 3 is provided with a liquid inlet 451, and the liquid inlet 451 is connected to any annular cavity 40. In this embodiment, a plurality of liquid inlets 451 are provided, and the plurality of liquid inlets 451 are respectively connected to different annular cavities 40. The liquid inlet 451 corresponds to the liquid supply pipe 31 one by one. The liquid supply pipe 31 is connected to different annular cavities 40 through the corresponding liquid inlet 451. The annular cavity 40 surrounds the cleaning pipe in the circumferential direction. When the cleaning rod 3 rotates, the liquid inlet 451 always maintains communication with the corresponding annular cavity 40.

[0045] Reference Figure 1 and Figure 4 A liquid supply device 13 is provided on one side of the frame 1. The liquid supply device 13 is connected to a plurality of liquid infusion tubes. The liquid infusion tubes correspond to the liquid supply tubes 31 one by one, and the ends of the liquid infusion tubes away from the liquid supply device 13 are connected to the annular cavity 40 where the corresponding liquid supply tubes 31 are located. When the liquid supply device 13 is working, the cleaning liquid is transported into the corresponding annular cavity 40 through the liquid infusion tubes. A pressure pump is installed on the upper end of the sealing cover 44. The pressure pump is used to pressurize the cleaning liquid flowing along the liquid infusion tubes, so as to increase the speed of the cleaning liquid when it is sprayed from the nozzle 2.

[0046] Reference Figure 1 and Figure 4When the sealing cover 44 contacts the upper end of the tank body, the cleaning brush 32 and all the nozzles 2 are located in the tank body, and the adjusting member 33 includes a pneumatic push rod, which is arranged in parallel with the guide rod 321 and is fixedly connected to the cleaning rod 3. The output end of the pneumatic push rod is connected to the cleaning brush 32, and the cleaning brush 32 is driven to move when the pneumatic push rod approaches. The cleaning rod 3 is fixed with an air pipe 34 adapted to the pneumatic push rod, and the upper end of the air pipe 34 is located in the cleaning rod 3 and is fixedly connected to the cleaning rod 3. When the cleaning rod 3 moves, all the air pipes 34 are driven to move synchronously. An air inlet 452 corresponding to the air pipe 34 is provided at the upper end of the cleaning rod 3, and the air inlet 452 is connected to the annular cavity 40. If it is necessary to explain, the air inlet 452 and the liquid inlet 451 are respectively connected to different annular cavities 40.

[0047] Reference Figure 3 and Figure 4 The air pipe 34 is connected to the corresponding annular cavity 40 through the corresponding air inlet 452. When the cleaning rod 3 rotates, the air pipe 34 is always in a state of being connected to the annular cavity 40. The frame 1 is also provided with an air supply member 14. The air supply member 14 can be a compressor or an air pump, which is used to compress and transport gas to the annular cavity 40 connected to the air pipe 34. The gas in the annular cavity 40 enters the air pipe 34 along the air inlet 452 and then moves to the pneumatic push rod, thereby realizing the control of the pneumatic push rod. Some of the materials are flammable and explosive. Therefore, the cleaning brush 32 is driven to move by the pneumatic push rod, and no electric control components are required, which is conducive to improving the safety of the cleaning process.

[0048] Reference Figure 3 and Figure 4 , when the cleaning brush 32 enters the tank body, the cleaning brush 32 is driven by the pneumatic push rod to move away from the cleaning rod 3 along the guide rod 321, so that the cleaning brush 32 fits the inner surface of the tank body. The cleaning liquid in the liquid supply pipe 31 is sprayed from the nozzle 2 to the inner surface of the tank body under high pressure, so that the cleaning liquid flushes the inner wall of the tank body. When the cleaning rod 3 rotates, the cleaning brush 32 is driven to move. When the cleaning rod 3 rotates one circle, the moving track of the cleaning brush 32 covers the inner surface of the tank body. At the same time, all nozzles 2 cooperate to complete the flushing of the inner surface of the tank body. During the flushing process, the sealing cover 44 blocks the tank body, thereby reducing the probability of liquid splashing in the tank body. After the cleaning rod 3 rotates multiple times, the vertical side wall and bottom surface of the tank body are cleaned at the same time, which is beneficial to improve the cleaning efficiency of the tank body while saving cleaning liquid. A counterweight block 36 is installed on the side of the cleaning rod 3 away from the cleaning brush 32 to balance the load-bearing capacity of the cleaning rod 3 and improve the parallelism of the cleaning rod 3 when rotating.

[0049] Reference Figure 4Furthermore, corrosion-resistant materials such as tetrafluoroethylene are added to the sealing ring 41. When cleaning some special coatings, it is necessary to add a solvent such as hexamethylbenzene, butanol, propylene glycol methyl ether acetate, etc. to the cleaning liquid. Hexamethylbenzene is corrosive to the rubber sealing ring 41, so the service life of the sealing ring 41 is extended by adding tetrafluoroethylene. In addition, the sealing ring 41 at the annular cavity 40 connected to the air pipe 34 is in a dry space, so dry wear-resistant materials such as silicon carbide, polyurethane, etc. are also added to the sealing ring 41 to improve the dry wear resistance of the sealing ring 41.

[0050] The implementation principle of a tank cleaning system according to an embodiment of the present application is as follows: first, by limiting the shape of the cleaning brush 32, when the cleaning rod 3 rotates one circle, the cleaning track of the cleaning brush 32 covers the inner surface of the tank. At the same time, by providing a support sleeve 4 and a sealing ring 41, a plurality of annular enclosed spaces are formed in the circumference of the cleaning rod 3, and then when the cleaning rod 3 rotates, the liquid supply pipe 31 and the liquid supply device 13, the air pipe 34 and the air supply member 14 are always kept in a connected state, and by changing the material of the traditional sealing ring 41, the service life of the sealing ring 41 is extended. When cleaning the tank, the vertical side walls and bottom surface of the tank are cleaned at the same time, which is conducive to improving the cleaning efficiency of the tank, while saving the cleaning liquid, and improving the convenience of cleaning the tank.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tank cleaning system, comprising a frame (1) and a nozzle (2), wherein the frame (1) is vertically slidably connected to a lifting frame (11), and the frame (1) is provided with a driving member (12) for driving the lifting frame (11) to move, the nozzle (2) moves synchronously with the lifting frame (11), and the frame (1) is provided with a liquid supply device (13) for conveying a cleaning liquid to the nozzle (2), characterized in that: The cleaning rod (3) is also included. The cleaning rod (3) is arranged vertically. The lifting frame (11) is fixedly connected to the support sleeve (4). The upper end of the cleaning rod (3) is located in the support sleeve (4) and is coaxially rotatably connected to the support sleeve (4). A plurality of spray heads (2) are all located on one side of the cleaning rod (3) along the length direction. The spray heads (2) are arranged along the shape of the inner wall of the tank body. When the cleaning rod (3) rotates, the flushing track of the spray heads (2) covers the inner surface of the tank body. The cleaning rod (3) is fixedly connected to a liquid supply pipe (31) connected to the spray heads (2). The support sleeve (4) A plurality of sealing rings (41) are arranged along the axial direction, and the sealing rings (41) are added with corrosion-resistant materials. All the sealing rings (41) are sleeved on the outside of the cleaning rod (3) and fit the cleaning rod (3). A closed annular cavity (40) is formed between two adjacent sealing rings (41). The annular cavity (40) is arranged along the circumference of the cleaning rod (3). One end of the liquid supply pipe (31) away from the nozzle (2) is located in the cleaning rod (3) and communicated with any annular cavity (40). The liquid supply device (13) is communicated with the annular cavity (40) connected to the liquid supply pipe (31).

2. A tank cleaning system according to claim 1, characterized in that: A cleaning brush (32) is provided on one side of the cleaning rod (3) along the length direction. The cleaning brush (32) is arranged according to the shape of the inner wall of the tank body. When the cleaning rod (3) rotates, the moving track of the cleaning brush (32) covers the inner surface of the tank body.

3. A tank cleaning system according to claim 2, characterized in that: An adjusting member (33) is provided between the cleaning rod (3) and the cleaning brush (32), and the adjusting member (33) is used to drive the cleaning brush (32) to move closer to or away from the inner wall of the tank.

4. A tank cleaning system according to claim 3, characterized in that: The regulating member (33) comprises a pneumatic push rod, the end of the pneumatic push rod away from the output end is fixedly connected to the cleaning rod (3), and the output end of the pneumatic push rod is fixedly connected to the cleaning brush (32), the cleaning rod (3) is fixedly provided with an air pipe (34) for driving the pneumatic push rod to work, the end of the air pipe (34) away from the pneumatic push rod is located in the cleaning rod (3) and is connected to the annular cavity (40), a plurality of annular cavities (40) are provided, the air pipe (34) and the liquid supply pipe (31) are respectively connected to different annular cavities (40), and an air supply member (14) is fixedly provided at the upper end of the sealing cover (44), and the air supply member (14) is connected to the annular cavity (40) connected to the air pipe (34).

5. A tank cleaning system according to claim 4, characterized in that: A guide rod (321) is fixedly arranged on one side of the cleaning brush (32) close to the cleaning rod (3), and all the guide rods (321) are arranged parallel to the output end of the pneumatic push rod. A support frame (35) is fixedly arranged on one side of the cleaning rod (3) close to the cleaning brush (32), and a guide block (351) corresponding to the guide rod (321) is fixedly arranged on the support frame (35), and the guide rod (321) passes through the guide block (351) and is slidably connected to the guide block (351).

6. A tank cleaning system according to claim 1, characterized in that: Two groups of compression rings (42) are axially arranged in the support sleeve (4), all the sealing rings (41) are located between the two groups of compression rings (42), the sealing rings (41) close to the compression rings (42) are in contact with the compression rings (42), and a bracket (43) for limiting the axial displacement of the sealing rings (41) is arranged in the annular cavity (40).

7. A tank cleaning system according to claim 1, characterized in that: A sealing cover (44) is fixedly provided at the lower end of the support sleeve (4) along the circumferential direction, the lifting frame (11) is fixedly connected to the sealing cover (44), the sealing cover (44) is adapted to the tank body, and the tank body is sealed when the sealing cover (44) and the upper end of the tank body are within the working range, and the cleaning brush (32) is located below the sealing cover (44).

8. A tank cleaning system according to claim 7, characterized in that: The frame (1) is provided with an upper sensing switch (151) and a lower sensing switch (152) in sequence from top to bottom, and the lifting frame (11) is located between the upper sensing switch (151) and the lower sensing switch (152). When the lifting frame (11) moves into the working range of the upper sensing switch (151), the upper sensing switch (151) is triggered, at which time the lifting cylinder stops, and the height of the lower end of the cleaning rod (3) is higher than the height of the tank body; when the lifting frame (11) moves into the working range of the lower sensing switch (152), the lower sensing switch (152) is triggered, at which time the lifting cylinder also stops, and the sealing cover (44) fits with the upper end of the tank body.

9. A tank cleaning system according to claim 1, characterized in that: The frame (1) is provided with two groups of clamping plates (16), the two clamping plates (16) are symmetrically arranged with the axis of the cleaning rod (3) as the center, and one end of the clamping plate (16) in the length direction is hinged to the frame (1) in the transverse direction, and the hinge of the two clamping plates (16) is located on the same side of the cleaning rod (3), and the end of the clamping plate (16) away from the hinge is connected to a push rod (161) in the transverse direction, and the end of the push rod (161) away from the clamping plate (16) is connected to a connecting rod (162) in the transverse direction, and the end of the connecting rod (162) away from the push rod (161) is hinged to the frame (1), and the frame (1) is connected to a clamping cylinder (17) corresponding to the clamping plate (16) in the transverse direction, and a connecting block (171) is fixedly provided at the output end of the clamping cylinder (17), and the connecting block (171) is connected to the push rod (161) and the connecting rod (162) in the transverse direction.

10. A tank cleaning system according to claim 1, characterized in that: A counterweight (36) is fixedly arranged on one side of the cleaning rod (3) away from the support frame (35); the counterweight (36) matches the weight of the cleaning brush (32), the support frame (35), the nozzle (2) and the adjusting member (33) and is used to balance the load-bearing capacity of the cleaning rod (3).

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