Vehicle-mounted oil tank cleaning device and cleaning method

Abstract

The invention relates to a vehicle-mounted oil tank cleaning device and method. The vehicle-mounted oil tank cleaning device comprises a blue filter, a vacuum tank, a vertical pipeline pump, a diaphragm pump, a vertical multi-stage pump, a chemical process pump and a communicating pipe. The dirty water pumped from the oil tank or the buried tank is filtered through the blue type filter and conveyed into the vacuum tank for temporary storage, when the dirty water in the vacuum tank can be recycled, the dirty water in the vacuum tank is conveyed to the chemical process pump to be output, and when the dirty water in the vacuum tank is subjected to oil-water separation, the dirty water in the vacuum tank can be recycled. Dirty water is conveyed to the vertical pipeline pump along the second pipeline, the dirty water is conveyed to the oil-water separation box for oil-water separation, when the small buried tank is cleaned, the water separated by the oil-water separation box is conveyed through the vertical multi-stage pump, and the small buried tank is cleaned through the rotary spray head; and water separated by the oil-water separation tank is conveyed through a chemical process pump and is cleaned through a second water outlet pipe and a cleaning gun.

Description

Technical Field

[0001] The present application relates to the technical field of oil tank cleaning, and in particular to a vehicle-mounted oil tank cleaning device and a cleaning method. Background Art

[0002] After a period of use, large finished oil tanks and underground tanks will accumulate certain impurities such as oil stains and sludge on the inner wall, which need to be cleaned regularly to ensure the oil quality standards. The current conventional cleaning method is usually for personnel to enter the tank through a manhole to perform operations, which is inefficient and difficult to ensure the personal safety of the personnel because the gas in the tank is toxic and flammable and explosive.

[0003] Related technologies can refer to the Chinese patent application with publication number CN118045832A, which discloses an oil tank inner wall cleaning device and cleaning method. Through the cooperation of the cleaning frame and the corrugated retraction tube, when the protective cover is inserted into the oil tank body for cleaning operations, as the cleaning frame and the corrugated retraction tube rotate along the transmission shaft, the cleaning scraper and the inner scraper can be driven to operate at the same time to scrape the inner wall of the oil tank body.

[0004] With regard to the above-mentioned related technologies, this cleaning operation not only wastes a large amount of water, but also the dirt and dirty water containing chemical substances washed off will cause serious pollution and damage to the surrounding environment. Summary of the invention

[0005] In order to treat the dirty water after cleaning, the present application provides a vehicle-mounted oil tank cleaning device and a cleaning method.

[0006] In a first aspect, the present application provides a vehicle-mounted oil tank cleaning device, comprising: A blue filter, which is used to filter dirty water after cleaning oil tanks and underground tanks; A vacuum tank, wherein the vacuum tank is connected to the basket filter via a first pipe, and the first pipe is used to transport the dirty water filtered by the basket filter to the vacuum tank; A vertical pipeline pump, wherein the vertical pipeline pump is connected to the vacuum tank via a second pipeline; An oil-water separation box, wherein the end of the vertical pipeline pump away from the vacuum tank is connected to the oil-water separation box through a third pipeline, and the oil-water separation box is used to separate oil and water from dirty water; A diaphragm pump, wherein the diaphragm pump is connected to a first oil pumping pipe, the pipe opening of the first oil pumping pipe away from the diaphragm pump is located at the bottom of the oil-water separation box, and the other end of the diaphragm pump is connected to a discharge pipe; A vertical multistage pump, one end of which is connected to a first water pumping pipe, an end of which is away from the vertical multistage pump and is located in an oil-water separation box, and the other end of which is connected to a first water outlet pipe, which is connected to a rotating nozzle; A chemical process pump, one end of which is connected to a second water pumping pipe, an end of which is away from the chemical process pump and is located in an oil-water separation box, and the other end of which is connected to a second water outlet pipe, and the second water outlet pipe is connected to a cleaning gun; A connecting pipe, both ends of which are connected to the second pipeline and the second water pumping pipe respectively.

[0007] By adopting the above technical scheme, the dirty water extracted from the oil tank or the underground tank is filtered through a blue filter, and the filtered dirty water is transported to the vacuum tank for temporary storage. When the dirty water in the vacuum tank is recycled, the dirty water in the vacuum tank is transported to the chemical process pump through the second pipeline, the connecting pipe and the second pumping pipe for output and cleaning. When it is necessary to separate oil and water from the dirty water in the vacuum tank, the dirty water is transported along the second pipeline to the vertical pipeline pump, and the dirty water is transported to the oil-water separation box through the vertical pipeline pump and the third pipeline for oil-water separation. When cleaning a small underground tank, the water separated in the oil-water separation box is transported through the first pumping pipe and the vertical multi-stage pump, and the small underground tank is cleaned by a rotating nozzle. When cleaning the oil tank, the water separated in the oil-water separation box is transported through the second pumping pipe and the chemical process pump, and is cleaned through the second water outlet pipe and the cleaning gun.

[0008] Optionally, a first baffle and a second baffle are provided in the oil-water separation box, the first baffle divides the oil-water separation box into a separation chamber and a temporary storage chamber, the second baffle divides the temporary storage chamber into a water storage chamber and an oil storage chamber, a connecting port is opened on the first baffle to connect the separation chamber and the water storage chamber, a connecting pipe is provided on the first baffle to connect the separation chamber and the oil storage chamber, and a control valve is provided on the connecting pipe.

[0009] By adopting the above technical solution, the oil-water separation box is divided into a separation chamber, a water storage chamber and an oil storage chamber by the first baffle and the second baffle. Since the density of oil is smaller than that of water, the oil and water will be separated into layers after standing, with the upper part being the oil layer and the lower part being the water layer. The separated water enters the water storage chamber through the connecting port, and the separated oil enters the oil storage chamber through the connecting pipe for temporary storage.

[0010] Optionally, a containing box for filling demulsifier is arranged in the separation chamber, and a adding pipe is connected to the bottom of the containing box, and a valve is installed on the adding pipe.

[0011] By adopting the above technical scheme, the demulsifier mainly destroys the emulsion structure of oil in the dirty water through chemical action mechanisms such as electrical neutralization, adsorption, penetration and reverse emulsification, so that tiny oil droplets gather into larger oil droplets, thereby accelerating the oil-water separation process. The containing box is filled with the demulsifier, the valve is opened, and the demulsifier is added to the dirty water through the adding pipe to increase the speed of oil-water separation.

[0012] Optionally, the oil-water separation box is provided with a driving screw located in the separation chamber, the driving screw is threadedly connected with a connecting block, the side wall of the connecting block is provided with an adding component, the adding component includes two relatively parallel connecting plates, the connecting block is fixedly connected to one of the connecting plates, the two connecting plates are connected by a fixed plate, the accommodating box is located between the two connecting plates, and the connecting plate is provided with a moving component for moving the accommodating box between the two connecting plates.

[0013] By adopting the above technical solution, the driving screw is rotated to move the connecting block along the length direction of the driving screw. During the movement of the connecting block, the containing box is driven to move, so that the demulsifier in the containing box is added to different positions in the separation chamber, thereby accelerating the mixing speed of the demulsifier and the dirty water and increasing the speed of oil-water separation.

[0014] Optionally, the moving assembly includes a moving screw and two connecting gears, and supporting racks are provided on the inner walls on both sides of the oil-water separation box, the two supporting racks are parallel to the driving screw, and both ends of the moving screw pass through two connecting plates and are rotatably connected to the connecting plates, the two connecting gears are coaxially fixedly connected to the two ends of the moving screw respectively, the two connecting gears correspond one-to-one with the two supporting racks, and the connecting gears are meshed with the supporting racks, and a moving block threadably connected to the moving screw is provided on the accommodating box.

[0015] By adopting the above technical solution, during the movement of the connecting block, the two connecting plates move, so that the connecting gear on the connecting plate moves along the supporting rack, the connecting gear rotates, driving the moving screw to rotate, and the moving block drives the containing box to move along the length direction of the moving screw, thereby expanding the moving range of the containing box, allowing the demulsifier to be added to different positions of the dirty water more quickly, thereby improving the oil-water separation efficiency.

[0016] Optionally, the two connecting plates are rotatably connected with supporting gears, and the supporting gears are meshed with supporting racks.

[0017] By adopting the above technical solution, the supporting gear provides supporting force for the adding component, thereby improving the stability of the moving process of the adding component.

[0018] Optionally, a first support plate and a second support plate are provided on the fixed plate away from the connecting plate. The first support plate is rotatably connected to a driving rod, the second support plate is rotatably connected to a stirring shaft, one end of the driving rod is provided with a rotating gear meshing with a supporting rack, and the other end of the driving rod is connected to the stirring shaft through a bevel gear pair.

[0019] By adopting the above technical solution, during the movement of the connecting plate, the rotating gear meshing with the supporting rack rotates, the driving rod rotates, and the stirring shaft is driven to rotate through the bevel gear pair, thereby stirring the position where the demulsifier is added, increasing the mixing speed of the demulsifier and the dirty water, and accelerating the oil-water separation efficiency.

[0020] Optionally, a vacuum pump and a steam-water separation box are also included. The steam-water separation box is connected to the vacuum pump through a fourth pipeline, and the vacuum pump is connected to the vacuum tank through a fifth pipeline.

[0021] By adopting the above technical solution, the vacuum tank and the steam-water separation box are connected through a vacuum pump, the excess gas in the vacuum tank is discharged into the steam-water separation box through the vacuum pump, and the separated water is re-transported to the vacuum pump through the vacuum pump for recycling.

[0022] Optionally, the steam-water separation box is connected to an exhaust pipe, and the other end of the exhaust pipe is connected to the oil-water separation box.

[0023] By adopting the above technical solution, the gas separated in the steam-water separation box is discharged into the oil-water separation box for recovery.

[0024] In the second aspect, the present application provides a method for cleaning a vehicle-mounted oil tank, using the above-mentioned vehicle-mounted oil tank cleaning device, including the following steps: cleaning a small underground tank by a rotating nozzle, cleaning the oil tank by a cleaning gun, extracting the dirty water after cleaning from the oil tank or the underground tank, filtering it through a blue filter, and transporting the filtered dirty water to a vacuum tank for temporary storage; when the dirty water in the vacuum tank is recycled, the dirty water in the vacuum tank is transported to a chemical process pump through a second pipe, a connecting pipe and a second pumping pipe for output and recycling; it is necessary to When the dirty water in the empty tank is separated from oil and water, the dirty water is transported along the second pipeline to the vertical pipeline pump, and then transported to the oil-water separation box through the vertical pipeline pump and the third pipeline for oil-water separation; when cleaning the small underground tank, the water separated in the oil-water separation box is transported through the first pumping pipe and the vertical multi-stage pump, and the small underground tank is cleaned by the rotating nozzle. When cleaning the oil tank, the water separated in the oil-water separation box is transported through the second pumping pipe and the chemical process pump, and the oil tank is cleaned through the second water outlet pipe and the cleaning gun.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: The dirty water extracted from the oil tank or the underground tank is filtered through a blue filter, and the filtered dirty water is transported to the vacuum tank for temporary storage. When the dirty water in the vacuum tank is recycled, the dirty water in the vacuum tank is transported to the chemical process pump through the second pipeline, the connecting pipe and the second pumping pipe for output and cleaning. When the dirty water in the vacuum tank needs to be separated from oil and water, the dirty water is transported along the second pipeline to the vertical pipeline pump, and the dirty water is transported to the oil-water separation box through the vertical pipeline pump and the third pipeline for oil-water separation. When cleaning a small underground tank, the water separated in the oil-water separation box is transported through the first pumping pipe and the vertical multi-stage pump, and the small underground tank is cleaned through the rotating nozzle. When cleaning the oil tank, the water separated in the oil-water separation box is transported through the second pumping pipe and the chemical process pump, and cleaned through the second water outlet pipe and the cleaning gun; The oil-water separation box is divided into a separation chamber, a water storage chamber and an oil storage chamber by the first baffle and the second baffle. Since the density of oil is smaller than that of water, the oil and water will separate into layers after standing, with the upper layer being the oil layer and the lower layer being the water layer. The separated water enters the water storage chamber through the connecting port, and the separated oil enters the oil storage chamber through the connecting pipe for temporary storage. The driving screw is rotated to move the connecting block along the length direction of the driving screw. During the movement of the connecting block, the containing box is driven to move. The containing box is filled with demulsifier. The valve is opened and the demulsifier is added to the dirty water through the adding pipe to increase the speed of oil-water separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The utility model is a schematic diagram of the overall structure of a vehicle-mounted oil tank cleaning device.

[0027] Figure 2 It is a schematic diagram for showing the overall structure of the base in the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram for showing the process relationship between various components in the embodiments of the present application.

[0029] Figure 4 It is a schematic diagram for showing the internal structure of the oil-water separation box in the embodiment of the present application.

[0030] Figure 5 It is a schematic diagram for showing the connection relationship between the driving rod and the stirring shaft in the embodiment of the present application.

[0031] Figure 6 It is a structural schematic diagram used to show the added components in the embodiment of the present application.

[0032] Description of reference numerals: 1, vehicle body; 2, base; 21, basket filter; 211, first pipeline; 2111, connecting pump body; 22, vacuum tank; 23, vertical pipeline pump; 231, second pipeline; 2311, connecting pipe; 232, third pipeline; 24, diaphragm pump; 241, first oil extraction pipe; 242, second oil extraction pipe; 25, vertical multistage pump; 251, first water extraction pipe; 252, first water outlet pipe; 26, chemical process pump; 261, second water extraction pipe; 262, second water outlet pipe; 27, vacuum pump; 271, steam-water separation box; 2711, exhaust pipe; 272, fourth pipeline; 273, fifth pipeline; 28, nitrogen generator; 281, air compressor; 29. High-pressure fan; 3. Oil-water separation box; 31. First baffle; 311. Connecting pipe; 312. Control valve; 32. Second baffle; 33. Driving screw; 331. Connecting block; 34. Driving motor; 35. Support rack; 4. Adding assembly; 41. Connecting plate; 411. Supporting gear; 42. Accommodating box; 421. Adding pipe; 422. Valve; 423. Moving block; 43. Fixed plate; 431. First supporting plate; 432. Second supporting plate; 5. Moving assembly; 51. Moving screw; 52. Connecting gear; 6. Driving rod; 61. Rotating gear; 62. Agitating shaft; 63. Bevel gear pair; 7. Flushing pump; 71. Flushing water tank; 8. Liquid level meter. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with all the accompanying drawings. Embodiment 1:

[0034] The embodiment of the present application discloses a vehicle-mounted oil tank cleaning device.

[0035] Reference Figure 1 A vehicle-mounted oil tank cleaning device includes a vehicle body 1, on which a base 2 is installed. The base 2 is used to support various components. The vehicle body 1 moves the entire device to facilitate the cleaning of oil tanks and underground tanks at different locations.

[0036] Reference Figure 2 , Figure 3 and Figure 4A blue filter 21 is installed on the base 2. One end of the blue filter 21 is connected to the output port of the oil tank and the small underground tank through a pipeline. The blue filter 21 filters the dirty water after cleaning the oil tank and the underground tank through the blue filter 21. The other end of the blue filter 21 is connected to the vacuum tank 22 through a first pipeline 211. A connecting pump body 2111 is installed on the first pipeline 211. The connecting pump body 2111 is started to transport the dirty water filtered by the blue filter 21 to the vacuum tank 22 through the first pipeline 211. A vertical pipeline pump 23 and an oil-water separation box 3 are installed on the base 2. One end of the vertical pipeline pump 23 is connected to the vacuum tank 22 through a second pipeline 231. The other end of the vertical pipeline pump 23 is connected to the oil-water separation box 3 through a third pipeline 232. The vertical pipeline pump 23 transports the dirty water in the vacuum tank 22 to the oil-water separation box 3, and the oil-water separation box 3 separates the dirty water from oil.

[0037] Reference Figure 4 , Figure 5 and Figure 6 The first baffle 31 and the second baffle 32 are fixedly installed in the oil-water separation box 3. The first baffle 31 divides the oil-water separation box 3 into a separation chamber and a temporary storage chamber. The second baffle 32 divides the temporary storage chamber into a water storage chamber and an oil storage chamber. The first baffle 31 is provided with a connecting port to connect the separation chamber and the water storage chamber. The first baffle 31 is provided with a connecting pipe 311 to connect the separation chamber and the oil storage chamber. The connecting pipe 311 is provided with a control valve 312. The oil-water separation box 3 is divided into a separation chamber, a water storage chamber and an oil storage chamber by the first baffle 31 and the second baffle 32. The third pipeline 232 is connected to the top of the inner side wall of the separation chamber of the oil-water separation box 3, and is transported to the separation chamber of the oil-water separation box 3 through the third pipeline 232. Since the density of oil is smaller than that of water, after standing still, the oil and water will be separated into layers, with the upper part being the oil layer and the lower part being the water layer. The separated water enters the water storage chamber through the connecting port, and the separated oil enters the oil storage chamber through the connecting pipe 311 for temporary storage.

[0038] Reference Figure 2 A liquid level gauge 8 is installed on the base 2. The upper and lower ends of the liquid level gauge 8 are connected to the oil-water separation box 3. A cavity is opened in the liquid level gauge 8. The outer wall of the liquid level gauge 8 is made of transparent material, and the liquid situation in the cavity of the liquid level gauge 8 can be observed. Since the upper and lower ends of the liquid level gauge 8 are connected to the oil-water separation box 3, the oil-water separation situation in the oil-water separation box 3 can be observed through the liquid level gauge 8. At the same time, scales are marked on the surface of the liquid level gauge 8, which is convenient for pumping water according to the water level height in the oil-water separation box 3.

[0039] Reference Figure 2 , Figure 3 and Figure 4A diaphragm pump 24 is installed on the base 2, and the diaphragm pump 24 is connected to a first oil extraction pipe 241 and a second oil extraction pipe 242. The outlet of the first oil extraction pipe 241 is located at the bottom of the separation chamber of the oil-water separation box 3. After the water in the separation chamber is discharged, there will be oil and sewage residue at the bottom of the separation chamber. The first oil extraction pipe 241 absorbs the oil and sewage at the bottom of the separation box, and the outlet of the second oil extraction pipe 242 is located at the bottom of the oil storage chamber. The second oil extraction pipe 242 absorbs the oil in the oil storage chamber; the diaphragm pump 24 is connected to a discharge pipe, and the absorbed oil and sewage are discharged to a designated location for treatment through the discharge pipe.

[0040] Reference Figure 2 , Figure 3 and Figure 4 A vertical multistage pump 25 is installed on the base 2, one end of the vertical multistage pump 25 is connected to a first pumping pipe 251, the mouth of the first pumping pipe 251 is located at the bottom of the water storage chamber of the oil-water separation box 3, and the other end of the vertical multistage pump 25 is connected to a first outlet pipe 252, and the first outlet pipe 252 is connected to a rotating nozzle. When cleaning the small underground tank, the water separated by the oil-water separation box 3 is transported through the first pumping pipe 251 and the vertical multistage pump 25, and the small underground tank is cleaned by the rotating nozzle.

[0041] Reference Figure 2 , Figure 3 and Figure 4 A chemical process pump 26 is installed on the base 2, one end of the chemical process pump 26 is connected to a second pumping pipe 261, one end of the second pumping pipe 261 away from the chemical process pump 26 is located at the bottom of the water storage cavity of the oil-water separation box 3, and the other end of the chemical process pump 26 is connected to a second water outlet pipe 262, and the second water outlet pipe 262 is connected to a cleaning gun. When cleaning the oil tank, the water separated by the oil-water separation box 3 is transported through the second pumping pipe 261 and the chemical process pump 26, and the oil tank is cleaned through the second water outlet pipe 262 and the cleaning gun.

[0042] Reference Figure 2 and Figure 3 The second pipeline 231 and the second water pumping pipe 261 are connected by a connecting pipe 2311. When the dirty water in the vacuum tank 22 has a low oil content and can be directly used to clean the oil tank, the dirty water in the vacuum tank 22 is transported to the chemical process pump 26 through the second pipeline 231, the connecting pipe 2311 and the second water pumping pipe 261 for output to clean the oil tank.

[0043] Reference Figure 2 and Figure 3A vacuum pump 27 and a steam-water separation box 271 are installed on the base 2. The steam-water separation box 271 is connected to the vacuum pump 27 through a fourth pipe 272, and the vacuum pump 27 is connected to the vacuum tank 22 through a fifth pipe 273. The dirty water extracted from the vacuum tank 22 will volatilize gases such as oil, gas, and water vapor. The vacuum tank 22 is connected to the steam-water separation box 271 through the vacuum pump 27, and the gas in the vacuum tank 22 is discharged into the steam-water separation box 271 through the vacuum pump 27, and the separated water in the steam-water separation box 271 is re-transported to the vacuum pump 27 through the vacuum pump 27 for recycling. The top of the steam-water separation box 271 is connected to an exhaust pipe 2711, and the other end of the exhaust pipe 2711 is connected to the oil-water separation box 3. The gas separated by the steam-water separation box 271 is discharged into the oil-water separation box 3 for recovery.

[0044] Reference Figure 2 and Figure 3 The base 2 is equipped with a nitrogen generator 28, an air compressor 281 and a high-pressure blower 29. During the long-term use of the underground tank, oil and gas are accumulated in the tank body, resulting in an increase in the pressure inside the tank body. The high-pressure blower 29 is connected to a blowing nozzle, and the high-pressure blower 29 ventilates the underground tank to keep the pressure inside the tank body balanced with the air pressure. Nitrogen is generated by the nitrogen generator 28. Nitrogen has good inertness and is not easy to react chemically with other elements. Nitrogen is filled into the tank body through the air compressor 281 to discharge the oxygen in the tank body, thereby reducing the possibility of oxidation during the cleaning process of the inside of the tank body.

[0045] Reference Figure 2 and Figure 3 A flushing pump 7 and a flushing water tank 71 are installed on the base 2. The flushing pump 7 and the flushing water tank 71 are connected through a water pipe. The other end of the flushing pump 7 is connected to a spray pipe for cleaning the chemical process pump 26.

[0046] Reference Figure 5 and Figure 6A driving screw 33 located in the separation chamber rotates in the oil-water separation box 3, and a driving motor 34 is installed in the oil-water separation box 3. The output shaft of the driving motor 34 is coaxially fixedly connected to the driving screw 33, and a connecting block 331 is threadedly connected to the driving screw 33. The side wall of the connecting block 331 is provided with an adding component 4, and the adding component 4 includes two relatively parallel connecting plates 41 and a accommodating box 42. The connecting block 331 is fixedly connected to one of the connecting plates 41, and the two connecting plates 41 are connected by a fixed plate 43. The accommodating box 42 is located between the two connecting plates 41, and the bottom of the accommodating box 42 is connected to an adding pipe 421, and a valve 422 is installed on the adding pipe 421. The valve 422 is an electrically controlled valve that can be remotely controlled, and a moving component 5 for moving the accommodating box 42 between the two connecting plates 41 is provided on the connecting plate 41. Start the drive motor 34, rotate the drive screw 33, and move the connecting block 331 along the length direction of the drive screw 33. During the movement of the connecting block 331, the containing box 42 is driven to move, wherein the containing box 42 is filled with a demulsifier, which is a catalyst commonly used in the oil-water separation process. The demulsifier can partially replace the stabilizing membrane to separate the oil droplets and water droplets in the emulsion. The demulsifier can destroy the stability of the oil-water emulsion, causing the originally stable oil droplets to aggregate and precipitate, thereby accelerating the oil-water separation. Open the valve 422, and the demulsifier is added to the dirty water through the adding pipe 421 to increase the speed of oil-water separation.

[0047] Reference Figure 5 and Figure 6 The moving assembly 5 includes a moving lead screw 51 and two connecting gears 52. The inner walls on both sides of the oil-water separation box 3 are provided with supporting racks 35. The two supporting racks 35 are parallel to the driving lead screw 33. The two ends of the moving lead screw 51 pass through the two connecting plates 41 and are rotatably connected with the connecting plates 41. The two connecting gears 52 are coaxially fixedly connected with the two ends of the moving lead screw 51 respectively. The two connecting gears 52 correspond to the two supporting racks 35 one by one, and the connecting gears 52 are meshed with the supporting racks 35. The receiving box 42 is provided with a moving block 423 threadedly connected with the moving lead screw 51. During the movement of the connecting block 331, the two connecting plates 41 move, so that the connecting gears 52 on the connecting plate 41 move along the supporting racks 35, the connecting gears 52 rotate, and drive the moving lead screw 51 to rotate. The moving block 423 drives the receiving box 42 to move along the length direction of the moving lead screw 51, thereby expanding the moving range of the receiving box 42, so that the demulsifier can be added to different positions of the dirty water more quickly, and the oil-water separation efficiency is improved.

[0048] Reference Figure 6 The two connecting plates 41 are rotatably connected with support gears 411, and the support gears 411 are meshed with the support racks 35. The support gears 411 provide support force for the adding component 4, thereby improving the stability of the moving process of the adding component 4.

[0049] Reference Figure 5 and Figure 6 A first support plate 431 and a second support plate 432 are provided on the fixed plate 43 on the side away from the connecting plate 41. The first support plate 431 is rotatably connected with a driving rod 6, and the second support plate 432 is rotatably connected with a stirring shaft 62. A rotating gear 61 meshing with the supporting rack 35 is provided at one end of the driving rod 6, and the other end of the driving rod 6 is connected to the stirring shaft 62 through a bevel gear pair 63. During the movement of the connecting plate 41, the rotating gear 61 meshing with the supporting rack 35 rotates, the driving rod 6 rotates, and the stirring shaft 62 is driven to rotate through the bevel gear pair 63, so as to stir the position where the demulsifier is added, increase the mixing speed of the demulsifier and the dirty water, and accelerate the oil-water separation efficiency.

[0050] The implementation principle of the vehicle-mounted oil tank cleaning device of the embodiment of the present application is as follows: the dirty water extracted from the oil tank or the buried tank is filtered through the blue filter 21, and the filtered dirty water is transported to the vacuum tank 22 for temporary storage. When the dirty water in the vacuum tank 22 is recycled, the dirty water in the vacuum tank 22 is transported to the chemical process pump 26 through the second pipe 231, the connecting pipe 2311 and the second pumping pipe 261 for output and cleaning. When the dirty water in the vacuum tank 22 needs to be separated from oil and water, the dirty water is transported along the second pipe 231 The dirty water is transported to the vertical pipeline pump 23, and the dirty water is transported to the oil-water separation box 3 through the vertical pipeline pump 23 and the third pipeline 232 for oil-water separation. When the small underground tank is cleaned, the water separated by the oil-water separation box 3 is transported through the first pumping pipe 251 and the vertical multi-stage pump 25, and the small underground tank is cleaned by the rotating nozzle. When the oil tank is cleaned, the water separated by the oil-water separation box 3 is transported through the second pumping pipe 261 and the chemical process pump 26, and cleaned through the second water outlet pipe 262 and the cleaning gun. Embodiment 2:

[0051] The present application provides a vehicle-mounted oil tank cleaning method, using the above-mentioned vehicle-mounted oil tank cleaning device, including the following steps: cleaning a small underground tank by a rotating nozzle, cleaning the oil tank by a cleaning gun, extracting the dirty water after cleaning from the oil tank or the underground tank, filtering it through a blue filter 21, and transporting the filtered dirty water to a vacuum tank 22 for temporary storage; when the dirty water in the vacuum tank 22 is recycled, the dirty water in the vacuum tank 22 is transported to the chemical process pump 26 through the second pipe 231, the connecting pipe 2311 and the second pumping pipe 261 for output and recycling; it is necessary to When the dirty water is separated into oil and water, the dirty water is transported to the vertical pipeline pump 23 along the second pipeline 231, and is transported to the oil-water separation box 3 through the vertical pipeline pump 23 and the third pipeline 232 for oil-water separation; when the small underground tank is cleaned, the water separated by the oil-water separation box 3 is transported through the first pumping pipe 251 and the vertical multi-stage pump 25, and the small underground tank is cleaned by the rotating nozzle. When the oil tank is cleaned, the water separated by the oil-water separation box 3 is transported through the second pumping pipe 261 and the chemical process pump 26, and the oil tank is cleaned through the second water outlet pipe 262 and the cleaning gun.

[0052] 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 vehicle-mounted oil tank cleaning device, comprising a basket filter (21), wherein the basket filter (21) is used to filter dirty water after cleaning the oil tank and the underground tank; A vacuum tank (22), wherein the vacuum tank (22) is connected to the basket filter (21) via a first pipe (211), and the first pipe (211) is used to transport the dirty water filtered by the basket filter (21) to the vacuum tank (22); A vertical pipeline pump (23), wherein the vertical pipeline pump (23) is connected to the vacuum tank (22) via a second pipeline (231); characterized in that: It also includes an oil-water separation box (3), wherein one end of the vertical pipeline pump (23) away from the vacuum tank (22) is connected to the oil-water separation box (3) via a third pipeline (232), and the oil-water separation box (3) is used to separate oil from water in dirty water; A diaphragm pump (24), wherein the diaphragm pump (24) is connected to a first oil extraction pipe (241), wherein a pipe opening of the first oil extraction pipe (241) away from the diaphragm pump (24) is located at the bottom of the oil-water separation box (3), and the other end of the diaphragm pump (24) is connected to a discharge pipe; A vertical multistage pump (25), one end of the vertical multistage pump (25) is connected to a first water pumping pipe (251), an end of the first water pumping pipe (251) away from the vertical multistage pump (25) is located in the oil-water separation box (3), and the other end of the vertical multistage pump (25) is connected to a first water outlet pipe (252), and the first water outlet pipe (252) is connected to a rotating spray head; A chemical process pump (26), one end of the chemical process pump (26) is connected to a second water pumping pipe (261), an end of the second water pumping pipe (261) away from the chemical process pump (26) is located in the oil-water separation box (3), and the other end of the chemical process pump (26) is connected to a second water outlet pipe (262), and the second water outlet pipe (262) is connected to a cleaning gun; A connecting pipe (2311), wherein both ends of the connecting pipe (2311) are respectively connected to the second pipeline (231) and the second water pumping pipe (261).

2. The vehicle-mounted oil tank cleaning device according to claim 1, characterized in that: The oil-water separation box (3) is provided with a first baffle (31) and a second baffle (32); the first baffle (31) divides the oil-water separation box (3) into a separation chamber and a temporary storage chamber; the second baffle (32) divides the temporary storage chamber into a water storage chamber and an oil storage chamber; the first baffle (31) is provided with a connecting port for connecting the separation chamber and the water storage chamber; the first baffle (31) is provided with a connecting pipe (311) for connecting the separation chamber and the oil storage chamber; and the connecting pipe (311) is provided with a control valve (312).

3. The vehicle-mounted oil tank cleaning device according to claim 2, characterized in that: A containing box (42) for filling a demulsifier is arranged in the separation chamber, and a adding pipe (421) is connected to the bottom of the containing box (42), and a valve (422) is installed on the adding pipe (421).

4. The vehicle-mounted oil tank cleaning device according to claim 3 is characterized in that: The oil-water separation box (3) is provided with a driving screw (33) located in a separation chamber, the driving screw (33) is threadedly connected to a connecting block (331), a side wall of the connecting block (331) is provided with an adding component (4), the adding component (4) comprises two relatively parallel connecting plates (41), the connecting block (331) is fixedly connected to one of the connecting plates (41), the two connecting plates (41) are connected via a fixing plate (43), the containing box (42) is located between the two connecting plates (41), and a moving component (5) is provided on the connecting plate (41) for enabling the containing box (42) to reciprocate between the two connecting plates (41).

5. The vehicle-mounted oil tank cleaning device according to claim 4, characterized in that: The moving assembly (5) comprises a moving lead screw (51) and two connecting gears (52). Support racks (35) are provided on the inner walls of both sides of the oil-water separation box (3). The two supporting racks (35) are parallel to the driving lead screw (33). The two ends of the moving lead screw (51) pass through two connecting plates (41) and are rotatably connected to the connecting plates (41). The two connecting gears (52) are coaxially fixedly connected to the two ends of the moving lead screw (51), respectively. The two connecting gears (52) correspond to the two supporting racks (35) one by one, and the connecting gears (52) are meshed with the supporting racks (35). The accommodating box (42) is provided with a moving block (423) threadedly connected to the moving lead screw (51).

6. The vehicle-mounted oil tank cleaning device according to claim 5, characterized in that: The two connecting plates (41) are rotatably connected with a supporting gear (411), and the supporting gear (411) is meshed with a supporting rack (35).

7. The vehicle-mounted oil tank cleaning device according to claim 5, characterized in that: A first support plate (431) and a second support plate (432) are provided on the fixed plate (43) at a side away from the connecting plate (41); a driving rod (6) is rotatably connected to the first support plate (431); a stirring shaft (62) is rotatably connected to the second support plate (432); a rotating gear (61) meshing with a supporting rack (35) is provided at one end of the driving rod (6); and the other end of the driving rod (6) is connected to the stirring shaft (62) via a bevel gear pair (63).

8. The vehicle-mounted oil tank cleaning device according to claim 1, characterized in that: It also includes a vacuum pump (27) and a steam-water separation box (271), wherein the steam-water separation box (271) is connected to the vacuum pump (27) via a fourth pipeline (272), and the vacuum pump (27) is connected to the vacuum tank (22) via a fifth pipeline (273).

9. The vehicle-mounted oil tank cleaning device according to claim 8, characterized in that: The steam-water separation box (271) is connected to an exhaust pipe (2711), and the other end of the exhaust pipe (2711) is connected to the oil-water separation box (3).

10. A method for cleaning a vehicle oil tank, using the vehicle oil tank cleaning device according to any one of claims 1 to 9, characterized in that: The invention comprises the following steps: cleaning a small underground tank by a rotating nozzle, cleaning an oil tank by a cleaning gun, extracting dirty water from the oil tank or underground tank after cleaning, filtering the dirty water by a blue filter (21), and transporting the filtered dirty water to a vacuum tank (22) for temporary storage; when the dirty water in the vacuum tank (22) is recycled, the dirty water in the vacuum tank (22) is transported to a chemical process pump (26) through a second pipe (231), a connecting pipe (2311) and a second water extraction pipe (261) for output and recycling; when the dirty water in the vacuum tank (22) needs to be separated into oil and water, the dirty water is transported along the second pumping pipe (261) to a chemical process pump (26) for output and recycling; The pipeline (231) transports the dirty water to the vertical pipeline pump (23), and the dirty water is transported to the oil-water separation box (3) through the vertical pipeline pump (23) and the third pipeline (232) for oil-water separation. When cleaning the small underground tank, the water separated by the oil-water separation box (3) is transported through the first water pumping pipe (251) and the vertical multi-stage pump (25), and the small underground tank is cleaned by the rotating nozzle. When cleaning the oil tank, the water separated by the oil-water separation box (3) is transported through the second water pumping pipe (261) and the chemical process pump (26), and the oil tank is cleaned by the second water outlet pipe (262) and the cleaning gun.

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