A cleaning system for an oil tank with a complex internal structure

Abstract

The application relates to a cleaning system of an oil tank with a complex structure, belonging to the technical field of cleaning, and solves the problems of excessive residue in the oil tank with a complex structure and simple filtering devices and incomplete cleaning of the excessive residue in the prior art. The application comprises a cleaning platform, cleaning equipment and a filtering device; the cleaning platform comprises a placing rack and a tooling; the oil tank is fixed to the tooling, and the tooling is fixed to the placing rack; the cleaning equipment is provided with an oil storage tank, which is used for oil injection cleaning of the inside of the oil tank; the filtering device is used for filtering the cleaned oil liquid, and the filtered oil liquid is re-injected into the oil storage tank for recycling. The application can improve the cleaning effect of the oil tank with a complex structure, and the filtering precision is high, and the excessive residue can be completely cleaned.

Description

Technical Field

[0001] This invention relates to the field of cleaning technology, and more particularly to a cleaning system with a built-in complex structure oil tank. Background Technology

[0002] As fuel tanks become increasingly larger and more complex, the difficulty of cleaning their interiors is gradually increasing. Ordinary cleaning methods are insufficient, resulting in issues such as residual debris, numerous blind spots, and incomplete cleaning. Furthermore, ordinary cleaning methods often employ simplistic filtration systems with inadequate filtration accuracy, leading to incomplete removal of debris. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a cleaning system for a fuel tank with a complex internal structure, in order to solve the problems of excessive residue inside the complex internal structure of the fuel tank and the simple filtration device that cannot thoroughly clean the residue.

[0004] The objective of this invention is mainly achieved through the following technical solutions:

[0005] A cleaning system for an oil tank with a built-in complex structure includes a cleaning platform, cleaning equipment, and a filtration device;

[0006] The cleaning platform includes a placement rack and tooling; the oil tank is fixed to the tooling, and the tooling is fixed to the placement rack;

[0007] The cleaning equipment has an oil storage tank, which is used for filling the inside of the oil tank with oil for cleaning.

[0008] The filtration device is used to filter the cleaned oil, and after filtration, the oil reaches the required cleanliness level and is then injected back into the oil storage tank for recycling.

[0009] Furthermore, the oil storage tank has an oil outlet pipe.

[0010] Furthermore, the oil tank has an oil filling port and an oil return port, and the oil outlet pipe is connected to the oil filling port of the oil tank.

[0011] Furthermore, the filter device is connected to the oil return port of the oil tank.

[0012] Furthermore, the filtration device is a single filter assembly.

[0013] Furthermore, the filtration device is a superimposed filter assembly.

[0014] Furthermore, the superimposed filter assembly includes a first filter, a second filter, and a third filter; the filtration accuracy of the first filter, the second filter, and the third filter increases sequentially; the first filter, the second filter, and the third filter are arranged at an angle.

[0015] Furthermore, the superimposed filter assembly also includes an oil collecting component, which is disposed at the lower part of the third filter and is used to collect the oil filtered by the first filter, the second filter, and the third filter.

[0016] Furthermore, the lower ends of the first filter screen, the second filter screen, and the third filter screen are all provided with a waste collection hopper, which is used to collect the waste filtered out of the filter screen.

[0017] Furthermore, it also includes a contamination detection device; the contamination detection device is used to detect the cleanliness and cleaning effect of the kerosene cleaning medium.

[0018] Furthermore, the cleaning platform also includes a shaking device, which is located at the lower part of the oil tank placement rack and is used to shake the oil tank during cleaning.

[0019] Furthermore, the shaking device includes a first motor and an eccentric shaft; the ends of the eccentric shaft are respectively connected to the two ends of the oil tank placement rack, and the first motor drives the eccentric shaft to rotate, so as to shake the oil tank placement rack and the oil tank left and right.

[0020] Furthermore, the shaking device includes a crank, a connecting rod, and a rocker arm; the crank drives the rocker arm and the oil tank to swing up, down, left, and right.

[0021] Furthermore, the first filter, the second filter, and the third filter are all perforated mesh structures with an arc-shaped concave surface in the middle.

[0022] Furthermore, the stacked filter structure also includes a tilting component, which is used to tilt the excess material in the first filter, the second filter and the third filter into the excess material collection hopper.

[0023] Furthermore, the tilting assembly includes a rotating bracket, a rotating shaft, a pressing plate, and a rocker arm;

[0024] The rotating bracket is hinged to the first filter screen, the second filter screen and the third filter screen;

[0025] The pressing plate is an L-shaped plate, and the pressing plate includes a first side and a second side; the bottom surface of the first side is attached and fixed to the planes on both sides of the first filter screen, the second filter screen and the third filter screen; the second side is attached to the rotating bracket and is respectively disposed on both sides of the rotating bracket with the rocker arm, the rocker arm is coaxially disposed with the second side, and the rocker arm and the pressing plate can rotate simultaneously.

[0026] Furthermore, the superimposed filter structure also includes a scraper structure; the scraper structure is used to scrape the excess material adhering to the third filter into the excess material collection hopper.

[0027] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0028] (1) This invention includes a cleaning platform, cleaning equipment, and a filtration device for cleaning oil tanks with complex internal structures. The cleaning equipment cleans the oil tank by injecting oil. The cleaned oil is tested by a contamination detection device. If the cleanliness meets the requirements, it is re-injected into the oil storage tank of the cleaning equipment; otherwise, it is filtered by the filtration device until the cleanliness meets the requirements and then injected into the oil storage tank of the cleaning equipment. The cleaning oil is recycled after being injected into the oil storage tank of the cleaning equipment.

[0029] (2) The present invention is equipped with a motor and an eccentric shaft. The ends of the eccentric shaft are located on the two outermost upper frames of the frame. When the motor rotates, the eccentric shaft rotates, causing the frame and oil tank to swing left and right, causing the cleaning oil in the chamber to sway and collide with the chamber wall and pipe wall, washing away the excess material stuck to the wall and pipe wall with the cleaning oil, and carrying the excess material out when returning the oil, so that the cleaning of the chamber is more thorough.

[0030] (3) The rocking device of crank, rocker and connecting rod in this invention enables the rocker to drive the oil tank to swing in the up, down and left and right directions, which allows the cleaning oil to shake more in the oil tank and enter more hard-to-reach cleaning dead corners, further improving the cleaning effect.

[0031] (4) This invention features a stacked filter structure with filters of varying precision arranged from top to bottom to intercept impurities at different levels. The first filter is a coarse filter used to intercept large particles; the second filter is a medium filter used to intercept medium particles; and the third filter is a fine filter used to intercept small impurities. The oil discharged from the tank undergoes multi-layer filtration through the stacked filter structure, effectively preventing impurities of different sizes from passing through, avoiding impurity accumulation and clogging of the filters, improving filtration precision, and ensuring that the quality of the cleaning oil meets requirements for recycling.

[0032] (5) Compared with the prior art, the present invention sets up a rocker arm and a pressing plate to press the filter screen, so as to realize the rotation of the filter screen to pour out the collected excess material, which is convenient to operate.

[0033] (6) Compared with the prior art, the present invention is provided with a scraper structure, the bottom arc of the scraper is the same as the arc of the middle part of the filter screen, which is used to scrape the small excess objects adhering to the third filter screen into the excess object collection hopper, so as to avoid the accumulation of excess objects and blockage of the filter screen mesh.

[0034] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the specification or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the content specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0035] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0036] Figure 1 This is a schematic diagram of the oil cleaning system in specific embodiment 1;

[0037] Figure 2 This is a schematic diagram of the first shaking device in specific embodiment 1;

[0038] Figure 3 This is a schematic diagram of the single filter structure in specific embodiment 1;

[0039] Figure 4 This is a schematic diagram of the structure of the second shaking device in specific embodiment 2;

[0040] Figure 5 This is a schematic diagram of the superimposed filter structure in specific embodiment 2;

[0041] Figure 6 This is a schematic diagram of the scraper structure and oil collection hopper in specific embodiment 2.

[0042] Figure label:

[0043] 1-Fuel tank, 2-Cleaning platform, 21-Tooling, 22-Fuel tank rack, 23-Shaking device, 231-First shaking device, 232-Second shaking device, 2321-Crank, 2322-Connecting rod, 2323-Rock arm, 2324-Crank support, 3-Cleaning equipment, 4-Inflating equipment, 5-Filtering device, 51-Single filter assembly, 52-Stacked filter assembly, 521-First filter, 522-Second filter, 523-Then... Three filters, 524-oil collecting component, 5241-oil collecting hopper, 5242-oil filter outlet pipe, 5243-pad block, 525-excess material collection hopper, 5251-collection hopper placement rack, 526-tilting structure, 5261-rotating bracket, 5262-first rotating shaft, 5263-pressing plate, 5264-rocker arm, 527-scraper assembly, 5271-scraper frame, 5272-scraper handle, 5273-scraper, 6-contamination detection device. Detailed Implementation

[0044] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0045] Example 1

[0046] One embodiment of the present invention, such as Figure 1 As shown, a cleaning system with a built-in complex structure oil tank is provided, including a cleaning platform 2, a cleaning device 3, and a filter device 5.

[0047] Oil tank 1 is fixedly placed on cleaning platform 2. Cleaning equipment 3 cleans oil tank 1 by filling it with oil. The cleaned oil is tested by contamination detection device 6. If it meets the cleanliness requirements, it is re-injected into the oil storage tank of cleaning equipment 3; otherwise, it is filtered by filter device 5 until the cleanliness meets the requirements and then injected into the oil storage tank of cleaning equipment 3. The cleaning oil is recycled after being injected into the oil storage tank of cleaning equipment 3.

[0048] The cleaning platform 2 includes an oil tank placement rack 22 and a tooling 21. The oil tank placement rack 22 is a rectangular frame welded from aluminum alloy profiles, used to support the tooling 21 and the oil tank 1.

[0049] The tooling 21 is used to fix the oil tank 1, and the bottom of the tooling 21 is fixed to the oil tank placement rack 22.

[0050] There are multiple tooling fixtures 21, specifically, the number of tooling fixtures 21 is adapted to the length of oil tank 1.

[0051] Furthermore, the cleaning platform 2 also includes a shaking device 23 for shaking the oil tank 1, so that the cleaning oil in the oil tank 1 fully contacts all parts inside the oil tank 1, peeling off and carrying away excess material from the inner wall. In this embodiment, the shaking device 23 is a first shaking device 231. Two first shaking devices 231 are provided, and the two first shaking devices 231 are located at the lower part of the oil tank placement rack 22.

[0052] like Figure 2 As shown, the first swaying device 231 includes a first motor and an eccentric shaft.

[0053] The first motor is symmetrically arranged on both sides of the lower part of the oil tank placement frame 22, and the ends of the eccentric shafts are respectively connected to the outermost frame of the oil tank placement frame 22. The first motor drives the eccentric shaft to rotate and sway, which in turn drives the rotating shaft and the oil tank placement frame 22 to sway left and right, thereby causing the oil tank 1 to sway left and right. This allows the cleaning oil inside the oil tank 1 to collide with and flush the inner wall of the oil tank 1, causing excess material to be removed and improving the cleaning effect.

[0054] Compared with the prior art, this embodiment is equipped with a motor and an eccentric shaft. The ends of the eccentric shaft are located on the two outermost upper frames of the oil tank placement frame 22. When the motor rotates, the eccentric shaft rotates, causing the oil tank placement frame 22 and the oil tank 1 to swing left and right, causing the cleaning oil in the oil tank 1 to slosh and collide with the inner wall of the oil tank, washing away the excess material stuck to the wall. The excess material is carried out during oil return, making the cleaning inside the oil tank 1 more thorough.

[0055] The cleaning equipment 3 has an oil storage tank for oiling and cleaning the tank hull. Before oiling, the inlet and outlet pipes of the cleaning equipment 3 need to be connected for self-circulation. After achieving the required cleanliness, the oil is used for tank oiling. During cleaning, an oil filling port and an oil return port are provided on the oil tank 1, and oil is added and returned multiple times to achieve the purpose of cleaning the oil tank 1. Specifically, the oil outlet pipe of the oil storage tank of the cleaning equipment 3 is connected to the oil filling port of the oil tank 1, and the oil return port of the oil tank 1 is connected to the filter device 5. Before filtration, the discharged oil is tested. If the required cleanliness is not achieved after testing, the oil is filtered. After filtration to achieve the required cleanliness, the oil is re-injected into the oil storage tank; after testing to achieve the required cleanliness, the oil is re-injected into the oil storage tank.

[0056] Furthermore, an air-filling device 4 is also provided. The air-filling device 4 is used to fill the oil tank 1 with gas during the cleaning process, which mixes with the cleaning oil. The gas can increase the flow speed of the cleaning oil, form a vortex, increase the scouring force on the cleaning area, and improve the cleaning quality.

[0057] Filtering device 5 is used to filter the oil and excess material discharged after hull cleaning to the required level of cleanliness. For example... Figure 3 As shown, in this embodiment, the filter device 5 is a single filter assembly 51. Exemplarily, the filtration accuracy is 10µm. The oil filtered by the filter device 5 is re-input into the oil storage tank of the cleaning equipment 3, which contains a finer filter. The oil filtered by the finer filter is then transported to the tank as cleaning oil for continued use in cleaning the tank.

[0058] Furthermore, it also includes a contamination detection device 6, used to detect the cleanliness and cleaning effect of the kerosene cleaning medium.

[0059] Example 2

[0060] The difference between this embodiment and embodiment 1 is that the first shaking device 231 in embodiment 1 can only swing left and right. In order to improve the swinging effect, this embodiment uses a second shaking device 232 with a crank 2321 and a rocker arm 2323 structure to replace the first shaking device 231. At the same time, in order to make the cleaning oil filtration more thorough, this embodiment sets up a superimposed filter assembly 52 to replace the single filter assembly 51 in embodiment 1.

[0061] like Figure 4As shown, the second rocking device 232 includes a crank bracket 2324, a crank 2321, a connecting rod 2322, a rocker arm 2323, and a second motor. The crank 2321 is mounted on the crank bracket 2324, and under the drive of the second motor, the crank 2321 can rotate a full circle around its own axis.

[0062] The oil tank 1 has end caps on both ends, and the center of the end caps is fixed to the end of the rocker arm 2323. A connecting rod 2322 is positioned between the crank 2321 and the rocker arm 2323. When the crank 2321 rotates, the connecting rod 2322 drives the rocker arm 2323 and the oil tank 1 to reciprocate up, down, left, and right. It should be noted that the lengths of the rocker arm 2323 and the connecting rod 2322 are designed according to the required swing angle of the rocker arm 2323.

[0063] Compared to the first shaking device 231 in Embodiment 1 which causes the oil tank 1 to swing left and right, the arrangement of the crank 2321, rocker arm 2323 and connecting rod 2322 in this embodiment allows the rocker arm 2323 to drive the oil tank 1 to swing in the up, down and left and right directions, which allows the cleaning oil to shake in more dimensions in the oil tank 1 and enter more hard-to-reach cleaning dead corners, further improving the cleaning effect.

[0064] like Figure 5 As shown, the stacked filter assembly 52 includes multiple filters. Exemplarily, this embodiment uses three filters. The stacked filter assembly 52 in this embodiment includes a first filter 521, a second filter 522, a third filter 523, an oil collection component 524, and a waste collection hopper 525.

[0065] The first filter 521, the second filter 522, and the third filter 523 are arranged from top to bottom, with the filtration accuracy increasing sequentially. The first filter 521 is a coarse filter, exemplarily with a filtration accuracy of 15 mm; the second filter 522 is a medium filter, exemplarily with a filtration accuracy of 1 mm; and the third filter 523 is a fine filter, exemplarily with a filtration accuracy of 5 μm. To facilitate the collection of excess material, the first filter 521, the second filter 522, and the third filter 523 are all perforated mesh structures with a concave arc surface in the middle, facilitating the collection of excess material to the center of the filter. Furthermore, each filter is inclined, allowing excess material to slide down to the lower end of the filter by gravity.

[0066] Each filter screen is equipped with a waste collection hopper 525 at its bottom to collect the waste filtered out of the filter screen.

[0067] A waste collection hopper 525 is disposed on a collection hopper holder 5251. The collection hopper holder 5251 has multiple slots that allow the two ends of the waste collection hopper 525 to be engaged and secured. The waste collection hopper 525 can be removed once it is full of waste.

[0068] like Figure 6 As shown, the oil collecting component 524 is located below the third filter screen 523 and is used to collect the oil after three layers of filtration. An oil collection hopper 5241 is provided at the end of the oil collecting component 524 for storing the oil within it. Furthermore, the oil collecting component 524 is inclined, with a pad 5243 at the lower part of the end furthest from the oil collection hopper 5241, facilitating the flow of oil from the oil collecting component 524 into the oil collection hopper 5241 by gravity. An oil filter outlet pipe 5242 is provided on the side of the oil collection hopper 5241 to transport the oil from the side of the oil collection hopper 5241 to the oil storage tank of the cleaning equipment 3 for recycling.

[0069] This embodiment includes a stacked filter assembly 52, which arranges filters of different precision from top to bottom to intercept impurities at different levels. The first filter 521 is a coarse filter used to intercept large particulate impurities; the second filter 522 is a medium filter used to intercept medium particulate impurities; and the third filter 523 is a fine filter used to intercept fine impurities. The oil discharged from the oil tank 1 undergoes multi-layer filtration by the stacked filter assembly 52, effectively preventing impurities of different sizes from passing through, avoiding impurity accumulation and clogging of the filters, improving filtration precision, and ensuring that the quality of the cleaning oil meets requirements for recycling.

[0070] Furthermore, the stacked filter assembly 52 also includes a tilting device 526. The tilting device 526 is symmetrically arranged on both sides of the first filter 521, the second filter 522, and the third filter 523. The tilting device 526 includes a rotating bracket 5261, a first rotating shaft 5262, a pressing plate 5263, and a rocker arm 5264.

[0071] The first filter screen 521, the second filter screen 522 and the third filter screen 523 are mounted on the rotating bracket 5261 at both ends. The rotating bracket 5261 is provided with a first rotating shaft 5262 at the position corresponding to the filter screen. The first filter screen 521, the second filter screen 522 and the third filter screen 523 can all rotate around the first rotating shaft 5262 to tilt at multiple angles.

[0072] For ease of operation, each filter screen is equipped with a pressing plate 5263 on both sides. The pressing plate 5263 is an L-shaped plate, including a first side and a second side. The plane of the first side is fixed to the planes of both sides of the filter screen, and the second side is fitted to the rotating bracket 5261 and hinged to the rotating bracket 5261 through a second pivot. Rotating the pressing plate 5263 will cause the filter screen to rotate accordingly.

[0073] Furthermore, a rocker arm 5264 is provided on the other side of the rotating bracket 5261. The rocker arm 5264 is coaxially arranged with the pressing plate 5263 and can rotate simultaneously.

[0074] When it is necessary to empty the excess material, rotate the rocker arm 5264 to press down the first side of the pressing plate 5263 on the filter screen, causing the filter screen to tilt and the excess material in the filter screen to enter the excess material collection hopper 525.

[0075] Compared with the prior art, this embodiment sets up a rocker arm 5264 and a pressing plate 5263 to press the filter screen, so as to rotate the filter screen to pour out the collected excess material, which is convenient to operate.

[0076] Furthermore, because the third filter screen 523 has a high filtration precision and very small pores, some small debris such as iron filings carried out by the cleaning oil will adhere to the third filter screen 523. Excessive accumulation of debris will affect the filtration effect. The superimposed filter assembly 52 of this embodiment is also provided with a scraper structure 527, which is used to scrape the small debris adhered to the third filter screen 523 into the debris collection hopper 525.

[0077] The scraper structure 527 includes a scraper frame 5271, a scraper handle 5272, and a scraper 5273. The scraper frame 5271 is located on the end face of the third filter screen 523 away from the waste collection hopper 525, and has a through hole in the middle for inserting the scraper handle 5272. The scraper 5273 is located at the end of the scraper handle 5272. The curvature of the bottom of the scraper 5273 is the same as the curvature of the middle part of the third filter screen 523.

[0078] Compared with the prior art, this embodiment is provided with a scraper structure 527. The bottom curvature of the scraper 5273 is the same as the curvature of the middle part of the filter screen. It is used to scrape small excess objects adhering to the third filter screen 523 into the excess object collection hopper 525 to avoid excess objects accumulating and clogging the filter screen mesh.

[0079] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A cleaning system for an oil tank with complex internal structures, characterized in that, The cleaning platform (2), the cleaning device (3) and the filtering device (5) are included. The cleaning platform (2) includes an oil tank placing rack (22) and a tooling (21); the oil tank (1) is fixed to the tooling (21), and the tooling (21) is fixed to the oil tank placing rack (22). The cleaning device (3) has a storage tank for oil injection cleaning inside the oil tank (1). The filtering device (5) is used for filtering the cleaned oil, and the filtered oil is re-injected into the storage tank for recycling; the filtering device (5) is a superimposed filter screen assembly (52); the superimposed filter screen assembly (52) includes a first filter screen (521), a second filter screen (522), a third filter screen (523) and a pouring device (526); the first filter screen (521), the second filter screen (522) and the third filter screen (523) have increasing filtering precision in sequence; and the first filter screen (521), the second filter screen (522) and the third filter screen (523) are arranged in an inclined manner. The pouring device (526) includes a rotating support (5261), a first rotating shaft (5262), a pressing plate (5263) and a rocker arm (5264); both ends of the first filter screen (521), the second filter screen (522) and the third filter screen (523) are arranged on the rotating support (5261), and the rotating support (5261) is provided with the first rotating shaft (5262) corresponding to the position of each filter screen; and the first filter screen (521), the second filter screen (522) and the third filter screen (523) can rotate around the first rotating shaft (5262) to be inclined at multiple angles. Both sides of each filter screen are further provided with the pressing plate (5263); the pressing plate (5263) is an L-shaped plate including a first edge and a second edge; the plane of the first edge is fixedly attached to the plane of both sides of the filter screen, and the second edge is attached to the rotating support (5261) and is hinged to the rotating support (5261) through a second rotating shaft; and the first filter screen (521), the second filter screen (522) and the third filter screen (523) rotate with the pressing plate (5263) when the pressing plate (5263) is rotated.

2. The cleaning system of built-in complex structure oil tank according to claim 1, characterized in that, The storage tank has an oil outlet pipe.

3. The cleaning system of built-in complex structure oil tank according to claim 2, characterized in that, The oil tank (1) has an oil filling port and an oil return port, and the oil outlet pipe is connected to the oil filling port of the oil tank (1).

4. The cleaning system of built-in complex structure oil tank according to claim 3, characterized in that, The filtering device (5) is connected to the oil return port of the oil tank (1).

5. The cleaning system of built-in complex structure oil tank according to claim 1, characterized in that, The filtering device (5) is a single filter screen assembly (51).

6. The cleaning system of built-in complex structure oil tank according to claim 1, characterized in that, The superimposed filter screen assembly (52) further includes an oil collecting component (524) arranged at the lower part of the third filter screen (523); and the oil collecting component (524) is used for collecting the oil filtered by the first filter screen (521), the second filter screen (522) and the third filter screen (523).

7. The cleaning system of built-in complex structure oil tank according to claim 6, characterized in that, The lower end of each of the first filter screen (521), the second filter screen (522) and the third filter screen (523) is provided with an excess collecting hopper (525) for collecting the excess filtered by the filter screen.

8. The cleaning system of built-in complex structure oil tank according to claim 1, characterized in that, The pollution detection device (6) is used for detecting the cleanliness of the cleaning oil and the cleaning effect.

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