Spraying equipment for inner surface of oil storage warehouse

By designing components such as a mobile workbench and a rotating platform, the problems of long deployment cycles and uneven spraying of the inner wall spraying equipment for oil storage tanks have been solved, enabling rapid and efficient spraying and waste recycling, and improving the maintenance efficiency and economy of oil storage tanks.

CN120861314APending Publication Date: 2025-10-31SHANGHAI CONSTRUCTION FIRST CONSTRUCTION (GROUP) CO LTD
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Patent Information

Application Number
CN202510989057.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

In the existing technology, the deployment cycle of the oil storage tank inner wall spraying equipment is long and the labor cost is high. It is difficult to meet the uniform spraying requirements of the complex curved surface of the inner wall of the storage tank. Moreover, the uneven spraying and visual errors lead to unstable anti-rust effect.

Method used

It adopts components such as a mobile worktable, rotating platform, spray head, protective disc and suction head to realize the rapid entry and exit of the spray head and pump body into the inner cavity of the oil storage tank, automatically recover rust removal sand and grease, expand the coverage area through the reciprocating motion of the rotating disc and suction head, and improve the flexibility and efficiency of spraying by combining control system and sensors.

Benefits of technology

It reduces maintenance time and economic losses for oil storage tanks, improves coating uniformity and recycling efficiency, reduces waste of rust removal sand and grease, and ensures the long-term stable operation of oil storage tanks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses oil storage warehouse inner surface spraying equipment which comprises a movable workbench and movable universal wheels, the movable universal wheels are evenly assembled at the four corners of the bottom of the movable workbench, a rotating platform is assembled on the top of the movable workbench, and detection integration equipment is assembled on the upper end face of the rotating platform. A nozzle is assembled on the left side of the detection integration equipment, a hydraulic lifting arm is assembled on the upper end face of the rotating platform, and a nozzle is assembled at the other end of the hydraulic lifting arm. According to the spraying equipment for the inner surface of the oil storage warehouse, the problems that in the prior art, a rotating control tower needs to be erected for a long time, so that the maintenance time is long, and large economic losses are caused to maintenance of an oil storage tank are avoided, and by reducing the procedure steps, the maintenance efficiency of the oil storage tank is improved, and a suction head is automatically driven to reciprocate left and right; therefore, the recovery coverage area of the derusting sand is increased, the recovery effect of the derusting sand and the grease is improved, and waste of the grease and the derusting sand is greatly avoided.
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Description

Technical Field

[0001] This invention relates to the field of spraying equipment, and in particular to a spraying equipment for the inner surface of an oil storage warehouse. Background Technology

[0002] Large oil storage tanks, as crucial storage facilities in the petroleum and chemical industries, have their inner walls constantly exposed to corrosive media, making them prone to rust and scaling, directly impacting the structural safety of the tanks and the quality of the oil. To ensure the long-term stable operation of these tanks, regular rust removal and anti-rust coating operations are necessary for their inner walls. Traditional processes employ a mobile rotating tower combined with spray nozzles, water pumps, and monitoring lenses to form a spraying system. Due to the limited space inside the storage tank, the rotating tower must be disassembled and accessed through a manhole or dedicated channel before being reassembled and tested. This results in long equipment deployment cycles and high labor costs. Especially in large storage tanks (with a diameter exceeding 10 meters), this process can take several hours to several days, severely impacting production continuity.

[0003] Current technologies rely on manual control of the rotating tower and nozzle movement, which is insufficient to meet the requirements of uniform spraying on the complex curved surfaces of storage tank walls. The lack of a dynamic collaborative calibration mechanism between the monitoring lens and the nozzle easily leads to blind spots or uneven coating thickness, resulting in unstable rust prevention effects. Furthermore, visual errors exist when manually monitoring rusted areas, further reducing operational reliability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a spraying device for the inner surface of an oil storage warehouse, thereby solving the technical problems of long deployment cycles and high labor costs associated with such devices.

[0005] To achieve the above objectives, this application provides the following technical solution: an oil storage warehouse inner surface spraying device, comprising a mobile workbench and mobile casters, wherein the mobile casters are evenly mounted at the four bottom corners of the mobile workbench, a rotating platform is mounted on the top of the mobile workbench, a detection and integration device is mounted on the upper surface of the rotating platform, and a spray head is mounted on the left side of the detection and integration device, a hydraulic lifting arm is mounted on the upper surface of the rotating platform, and a spray head is mounted on the other end of the hydraulic lifting arm, and a protective disc is mounted on the left side of the spray head.

[0006] The inner cavity of the protective disc is equipped with a recycling mechanism, which includes a rotating disc. A round shaft is mounted on the top of the rotating disc, and a slotted block is provided on the outside of the round shaft. A suction head is mounted on the upper end face of the slotted block, and a pull rope is mounted on the bottom of the suction head. The other end of the pull rope is connected to a guide arm, and the guide arm is mounted in the inner cavity of the protective disc.

[0007] Preferably, the bottom of the guide arm is provided with a transverse groove, the inner cavity of the transverse groove is slidably connected to the outside of the round shaft, and a protective sleeve is sleeved on the outside of the round shaft. The guide arm can decompose the rotational motion of the round shaft into lateral motion and longitudinal motion through the transverse groove in the inner cavity and the main body. The longitudinal motion is performed by the round shaft inside the transverse groove, while the lateral motion is performed by the round shaft driving the slotted block body to move, thereby realizing the transmission control of the subsequent components.

[0008] Preferably, a pump body is embedded in the upper surface of the rotating platform. The pump body's inlet is connected to a flange pipe, and its outlet is connected to a second corrugated pipe. The other end of the second corrugated pipe is connected to the nozzle. The pump body can be connected to an external pipeline through the flange pipe to draw in external rust-removing sand and grease, and then discharge them through the second corrugated pipe. At the same time, the second corrugated pipe is elastic and can extend and retract, thereby preventing the second corrugated pipe from being damaged when the hydraulic lifting arm drives the nozzle to move up and down. The pump body can also rotate with the rotating platform, thereby preventing the second corrugated pipe from being pulled and broken when the rotating platform rotates.

[0009] Preferably, the integrated detection device includes a base arm, a telescopic arm mounted on the outside of the base arm, and a lifting cylinder mounted on the outside of the telescopic arm. A control system is mounted on the top of the mobile workbench. A torque limiter and an anti-collision sensor are mounted on the outside of the telescopic arm. The base arm is fixed to the top of the rotating platform and bears the overall load. The telescopic arm and the lifting cylinder work together to adjust the overall height of the hydraulic lifting arm. The telescopic arm consists of 2-4 nestable arm sections. A hydraulic lock is installed inside the lifting cylinder to ensure stability and safety. The torque limiter monitors the load and boom angle to prevent overload and tipping. The anti-collision sensor prevents the telescopic arm from colliding with obstacles. A control sensor is mounted on the top of the mobile workbench to control the working movement of the electronic components inside the mobile workbench.

[0010] Preferably, the bottom of the rotating platform is equipped with a turntable, the bottom of the turntable is equipped with a geared motor, and the outside of the geared motor is equipped with a limit arm. The limit arm is connected to the bottom of the movable worktable. The turntable can drive the rotating platform to rotate, the geared motor provides driving force to the turntable, thereby supporting the rotation of the turntable, and the limit arm can support the geared motor, improving the installation stability of the geared motor.

[0011] Preferably, a spherical bearing is sleeved on the output shaft of the geared motor, and the spherical bearing is embedded in the lower end face of the movable worktable. Annular sliders are evenly distributed on the bottom of the turntable, and an annular guide plate is slidably connected to the outside of the annular sliders. An annular groove is formed on the top of the annular guide plate, which is connected to the movable worktable. The spherical bearing supports the output shaft of the geared motor, thereby further improving the transmission stability of the geared motor. Simultaneously, the annular sliders, in conjunction with the annular guide plate, guide the bottom of the turntable, enabling it to rotate and supporting the bottom of the turntable, improving the stability of the turntable's movement and preventing damage due to excessive load.

[0012] Preferably, the bottom of the guide arm is provided with a track groove, and a track slider is slidably connected to the inner cavity of the track groove. The track slider is connected to the slotted block. The track groove allows the track slider to slide inside the track groove. The track slider can guide the slotted block to make the slotted block move in a straight line, thereby improving the stability of the slotted block during movement and guiding the slotted block to make it move in a straight line.

[0013] Preferably, the bottom of the suction head is connected to a reinforcing arm via a hinge. The bottom of the reinforcing arm is connected to the upper end face of the slotted block. The reinforcing arm can support the bottom of the suction head, improve the transmission during the movement of the suction head, prevent the suction head from rotating, and allow the suction head to change its angle during operation.

[0014] Preferably, the bottom of the rotating disk is connected to a support shaft via a seated bearing. The bottom of the support shaft is connected to the bottom of the inner cavity of the protective disk. A rubber sleeve is fitted onto the outer side of the rotating disk and the seated bearing. The support shaft, in conjunction with the seated bearing, can support the bottom of the rotating disk, improving the stability of the rotating disk during transmission. The rubber sleeve can also protect the seated bearing, preventing external dust from affecting the smoothness of transmission.

[0015] Preferably, the bottom of the protective disc is equipped with a dust collection mechanism, the outside of which is equipped with a cloth bag. The input end of the dust collection mechanism is connected to a first corrugated pipe, and the other end of the first corrugated pipe is connected to the outside of the suction head. The dust collection mechanism is a common dust collection device in the prior art, which can work with the suction head to absorb and store external rust removal sand and grease. Furthermore, the dust collection mechanism can be a wet and dry vacuum cleaner or a bag vacuum cleaner.

[0016] In summary, this application provides a spraying device for the inner surface of an oil storage warehouse, which has the following beneficial effects: 1. The oil storage warehouse inner surface spraying equipment, when maintaining the inner cavity of the oil storage tank, can drive the spray nozzle and pump body to quickly enter and exit the inner cavity of the oil storage tank through the cooperation of the added mobile workbench, mobile casters and rotating platform. This avoids the long maintenance time caused by the need to set up a rotating tower for a long time in the existing technology, and avoids the large economic losses caused by the maintenance of the oil storage tank. By reducing the number of process steps, the maintenance efficiency of the oil storage tank is improved.

[0017] 2. The surface spraying equipment inside the oil storage warehouse, through the addition of a protective plate and suction head, collects and recycles the waste rust-removing sand and grease generated during the sandblasting and oil spraying of the oil storage tank cavity. This avoids the generation of a large amount of waste of rust-removing sand and grease during rust removal and maintenance, which would cause economic losses, and also prevents the waste rust-removing sand from being scattered in the air, which would affect subsequent maintenance and oil spraying operations.

[0018] 3. The internal surface spraying equipment of this oil storage warehouse, through the addition of a rotating disc, a round shaft, a slotted block and a suction head, automatically drives the suction head to reciprocate left and right when the suction head performs spraying operation on the inner cavity of the oil storage tank, thereby increasing the coverage area for the recovery of rust removal sand, improving the recovery effect of rust removal sand and grease, and greatly avoiding the waste of grease and rust removal sand.

[0019] 4. The oil storage tank's internal surface spraying equipment, through the addition of a pull rope and a guide arm, pulls the suction head as it moves left and right, thereby changing the angle of the suction head. This further enhances the area of ​​the suction head that can recover rust-removing sand and grease, significantly reducing the economic losses caused by the equipment during the maintenance of the oil storage tank. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention.

[0021] Figure 2 This is a planar schematic diagram of the present invention.

[0022] Figure 3 This is an external schematic diagram of the rotating platform of the present invention.

[0023] Figure 4 This is an external schematic diagram of the recycling mechanism of the present invention.

[0024] Figure 5 This is an external schematic diagram of the rotating platform of the present invention.

[0025] Explanation of reference numerals in the attached figures: 1. Mobile workbench; 2. Casters; 3. Rotating platform; 31. Integrated testing equipment; 32. Gear motor; 33. Hydraulic lifting arm; 34. Limiting arm; 35. Spherical bearing; 36. Turntable; 37. Annular slider; 38. Annular guide plate; 4. Nozzle; 5. Protective plate; 51. Dust collection mechanism; 6. Recycling mechanism; 61. Rotating plate; 62. Round shaft; 63. Slotted block; 64. Reinforcing arm; 65. Suction head; 66. Pull rope; 67. First corrugated pipe; 68. Guide arm; 7. Pump body; 71. Second corrugated pipe. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] This application provides a technical solution; please refer to [link / reference]. Figure 1 and Figure 2 A spraying device for the inner surface of an oil storage warehouse includes a movable workbench 1 and movable casters 2. The casters 2 are evenly mounted at the four bottom corners of the movable workbench 1. A rotating platform 3 is mounted on the top of the movable workbench 1. A detection and integration device 31 is mounted on the upper surface of the rotating platform 3. A spray head 4 is mounted on the left side of the detection and integration device 31. A hydraulic lifting arm 33 is mounted on the upper surface of the rotating platform 3. A spray head 4 is mounted on the other end of the hydraulic lifting arm 33. A protective plate 5 is mounted on the left side of the spray head 4.

[0028] Please see Figure 3 and Figure 5The mobile workbench 1 supports the rotating platform 3. The omnidirectional casters 2 are common electric casters used in the prior art to support the mobile workbench 1 and enable its movement. The omnidirectional casters 2 are controlled and driven by a control sensor on the top of the mobile workbench 1. The omnidirectional casters 2 are equipped with a self-locking device to lock their rotation. The rotating platform 3 supports the rotating platform 3. The detection integration device 31 is a common detection device in the prior art, consisting of a rigid tube probe, a built-in light source, an imaging sensor, a drive system, a guide device, a power system, and an AI algorithm module. It can detect the inner cavity of the oil tank and integrate and transmit the monitoring data. The hydraulic lifting arm 33 can drive the detection integration device 31 to move. The nozzle 4 can spray rust-removing sand or grease to maintain the inner cavity of the oil tank. The protective plate 5 is equipped with a rubber sleeve on the outside. The rubber sleeve has the ability to deform and fits the inner cavity of the oil tank. The protective plate 5 can also collect the waste generated during spraying.

[0029] The inner cavity of the protective disc 5 is equipped with a recycling mechanism 6. The recycling mechanism 6 includes a rotating disc 61. A round shaft 62 is mounted on the top of the rotating disc 61. A slotted block 63 is provided on the outside of the round shaft 62. A suction head 65 is mounted on the upper end face of the slotted block 63. A pull rope 66 is mounted on the bottom of the suction head 65. The other end of the pull rope 66 is connected to a guide arm 68. The guide arm 68 is mounted in the inner cavity of the protective disc 5.

[0030] Please see Figure 4 The rotating disk 61 is equipped with a rubber wheel on its outside. The rubber wheel has anti-slip texture on its outside. The rubber wheel can increase the friction between the rotating disk 61 and the inner cavity of the oil storage tank. A motor can be installed at the bottom of the rotating disk 61. The rotating disk 61 is driven to rotate by the motor. The round shaft 62 can drive the slotted block 63 to move back and forth. The slotted block 63 can drive the suction head 65 to move.

[0031] The bottom of the guide arm 68 is provided with a transverse groove. The inner cavity of the transverse groove is slidably connected to the outside of the round shaft 62. The outer part of the round shaft 62 is fitted with a protective sleeve. The guide arm 68 can decompose the rotational motion of the round shaft 62 into lateral motion and longitudinal motion through the transverse groove in the inner cavity and the main body. The longitudinal motion is performed by the round shaft 62 inside the transverse groove, while the lateral motion is performed by the round shaft 62 driving the slotted block 63 to move, thereby realizing the transmission control of the subsequent components.

[0032] A pump body 7 is embedded in the upper end face of the rotating platform 3. The inlet of the pump body 7 is connected to a flange pipe, and the outlet of the pump body 7 is connected to a second bellows 71. The other end of the second bellows 71 is connected to the nozzle 4. The pump body 7 can be connected to an external pipeline through the flange pipe to draw in external rust-removing sand and grease, and then discharge them through the second bellows 71. At the same time, the second bellows 71 is elastic and can extend and retract, thereby preventing the second bellows 71 from being pulled and broken when the hydraulic lifting arm 33 drives the nozzle 4 to move up and down. The pump body 7 can also rotate with the rotating platform 3, thereby preventing the second bellows 71 from being pulled and broken when the rotating platform 3 rotates.

[0033] By combining the added mobile workbench 1, casters 2, and rotating platform 3, the nozzle 4 and pump body 7 can quickly enter the inner cavity of the oil storage tank. Traditional methods require lengthy setup of a rotating tower, which is not only time-consuming but also extends maintenance cycles, disrupts tank operation, and causes economic losses. The present invention simplifies the operation process, reduces pre-maintenance preparation time, and allows maintenance personnel to quickly enter the tank, improving maintenance efficiency. The mobile workbench 1 and casters enable flexible equipment movement, while the rotating platform 3 provides multi-angle working views, enhancing the flexibility and coverage of maintenance work. These improvements reduce maintenance costs, improve maintenance quality, and ensure the long-term stable operation of the oil storage tank.

[0034] The integrated testing equipment 31 includes a base arm, an external telescopic arm, and an external lifting cylinder. A control system is mounted on the top of the mobile worktable 1. A torque limiter and anti-collision sensors are mounted on the external side of the telescopic arm. The base arm is fixed to the top of the rotating platform 3 and bears the overall load. The telescopic arm and lifting cylinder work together to adjust the overall height of the hydraulic lifting arm 33. The telescopic arm consists of 2-4 nestable sections. A hydraulic lock is installed inside the lifting cylinder to ensure stability and safety. The torque limiter monitors the load and boom angle to prevent overload and tipping. The anti-collision sensors prevent the telescopic arm from colliding with obstacles. A control sensor is mounted on the top of the mobile worktable 1 to control the electronic components inside the mobile worktable 1.

[0035] The bottom of the rotating platform 3 is equipped with a turntable 36, and the bottom of the turntable 36 is equipped with a geared motor 32. The geared motor 32 is equipped with a limit arm 34 on its outside. The limit arm 34 is connected to the bottom of the movable worktable 1. The turntable 36 can drive the rotating platform 3 to rotate. The geared motor 32 provides driving force to the turntable 36, thereby supporting the rotation of the turntable 36. The limit arm 34 can support the geared motor 32 and improve the installation stability of the geared motor 32.

[0036] A spherical bearing 35 is sleeved on the output shaft of the geared motor 32. The spherical bearing 35 is embedded in the lower end face of the movable worktable 1. Annular sliders 37 are evenly distributed on the bottom of the turntable 36. An annular guide plate 38 is slidably connected to the outside of the annular sliders 37. An annular groove is opened on the top of the annular guide plate 38. The annular guide plate 38 is connected to the movable worktable 1. The spherical bearing 35 can support the output shaft of the geared motor 32, thereby further improving the transmission stability of the geared motor 32. At the same time, the annular sliders 37, in conjunction with the annular guide plate 38, can guide the bottom of the turntable 36, enabling the turntable 36 to rotate and supporting the bottom of the turntable 36, improving the stability of the turntable 36's movement and preventing damage caused by excessive load on the turntable 36.

[0037] The bottom of the guide arm 68 is provided with a track groove, and a track slider is slidably connected to the inner cavity of the track groove. The track slider is connected to the slotted block 63. The track groove allows the track slider to slide inside the track groove. The track slider can guide the slotted block 63 to make the slotted block 63 move in a straight line, thereby improving the stability of the slotted block 63 during movement and guiding the slotted block 63 to make the slotted block 63 move in a straight line.

[0038] By adding a protective disc 5 and a suction head 65, the rust-removing sand and grease generated by the nozzle 4 during sandblasting and oil spraying operations inside the oil storage tank can be collected, recycled, and stored. This avoids the economic losses caused by the large amount of rust-removing sand and grease generated during sandblasting and oil spraying in traditional maintenance processes, and the fact that rust-removing sand floating in the air can affect subsequent maintenance oil spraying operations, such as clogging nozzles and reducing oil spray uniformity. The protective disc 5 can block the splashing of rust-removing sand and grease, causing it to flow to the collection area; the suction head 65 can suck these wastes into the recycling and storage device, achieving zero waste discharge. This design avoids the waste of rust-removing sand and grease, reduces maintenance costs, ensures a clean and safe maintenance site, and provides a good environment for subsequent maintenance oil spraying operations.

[0039] The bottom of the suction head 65 is connected to a reinforcing arm 64 via a hinge. The bottom of the reinforcing arm 64 is connected to the upper end face of the slotted block 63. The reinforcing arm 64 can support the bottom of the suction head 65, improve the transmission when the suction head 65 moves, prevent the suction head 65 from rotating, and allow the suction head 65 to change its angle during operation.

[0040] The bottom of the rotating disk 61 is connected to a support shaft via a seated bearing. The bottom of the support shaft is connected to the bottom of the inner cavity of the protective disk 5. A rubber sleeve is fitted onto the outer side of the rotating disk 61 and the seated bearing. The support shaft, in conjunction with the seated bearing, can support the bottom of the rotating disk 61, improving the stability of the rotating disk 61 during transmission. The rubber sleeve can also protect the seated bearing, preventing external dust from affecting the smoothness of transmission.

[0041] The bottom of the protective plate 5 is equipped with a dust collection mechanism 51, and the outside of the dust collection mechanism 51 is equipped with a cloth bag. The input end of the dust collection mechanism 51 is connected to a first corrugated pipe 67, and the other end of the first corrugated pipe 67 is connected to the outside of the suction head 65. The dust collection mechanism 51 is a common dust collection device in the prior art. It can work with the suction head 65 to absorb and store external rust removal sand and grease. The dust collection mechanism 51 can be a wet and dry vacuum cleaner or a bag vacuum cleaner.

[0042] By adding a rotating disk 61, a circular shaft 62, a slotted block 63, and a suction head 65, the automatic left-right reciprocating motion of the suction head 65 during spraying operations is achieved. The rotation of the rotating disk 61, transmitted through the circular shaft 62 and the slotted block 63, converts the rotational motion into the reciprocating linear motion of the suction head 65. During spraying, the suction head 65 moves over a wider range, expanding the coverage area for rust-removing sand recovery, improving the recovery effect, and avoiding significant waste of grease and rust-removing sand. The recovered rust-removing sand can be reused, reducing raw material costs; the recovered grease can be refined and processed, achieving resource recycling and improving economic efficiency.

[0043] This solution first moves the mobile workbench 1 using the casters 2, pushing it into the inner cavity of the oil storage tank. The detection and integration device 31 scans the inner cavity of the oil storage tank to detect the rust removal areas and depths. The central processing unit inside the detection and integration device 31 then plans the rust removal and oil spraying scheme of the nozzle 4 based on the rust removal areas and depths. Different areas and depths should correspond to different rust removal pressures. External rust removal sand is placed inside the storage container, and the pump body 7 is connected to the storage container to draw in the rust removal sand, which is then sprayed out through the nozzle 4. The hydraulic lifting arm 33 rotates in a circular motion to remove rust from the areas inside the oil storage tank that need rust removal.

[0044] The recycling mechanism 6 is attached to the bottom of the rust removal area. During the rust removal process, some of the rust-removing sand will fall into the inner cavity of the protective disc 5. While the protective disc 5 is rotating, it drives the rotating disc 61 to rotate with the inner cavity of the rust removal tube, thereby driving the round shaft 62 to rotate. The round shaft 62 drives the slotted block 63 to move back and forth, and then drives the suction head 65 to move together through the reinforcing arm 64. The dust collection mechanism 51 is activated to work with the first corrugated pipe 67 and the suction head 65 to collect the rust-removing sand generated during rust removal.

[0045] When the suction head 65 is recovering rust-removing sand, it moves back and forth through the slotted block 63, thereby increasing the coverage area of ​​the rust-removing sand. At the same time, when the suction head 65 is moving, the added pull rope 66 will pull the suction head 65, thereby changing the angle of the suction head 65, and further increasing the coverage area of ​​the rust-removing sand recovered by the suction head 65.

[0046] After the inner cavity of the oil storage tank is derusted, the maintenance grease is connected to the pump body 7 and sprayed again through the nozzle 4. In addition, the grease floating in the air is recovered by the protective plate 5 and the recovery mechanism 6, thereby reducing the maintenance wear and tear on the oil storage tank.

[0047] When maintaining the inner cavity of the oil storage tank, the addition of a mobile workbench 1, casters 2, and rotating platform 3 allows the nozzle 4 and pump body 7 to quickly enter and exit the inner cavity of the oil storage tank. This avoids the need for a long time to set up a rotating tower, which would otherwise result in long maintenance time and significant economic losses. By reducing the number of steps, the maintenance efficiency of the oil storage tank can be improved.

[0048] By adding a protective plate 5 and a suction head 65, the waste rust-removing sand and grease generated by the spray nozzle 4 during sandblasting and oil spraying of the inner cavity of the oil storage tank are collected, recycled and stored. This avoids the generation of a large amount of waste of rust-removing sand and grease during rust removal and maintenance, which would cause economic losses, and the waste of rust-removing sand scattered in the air, which would affect subsequent maintenance and oil spraying operations.

[0049] With the addition of a rotating disc 61, a round shaft 62, a slotted block 63, and a suction head 65, when the suction head 65 performs spraying operations on the inner cavity of the oil storage tank, it automatically drives the suction head 65 to reciprocate left and right, thereby increasing the coverage area for the recovery of rust-removing sand, improving the recovery effect of rust-removing sand and grease, and greatly avoiding the waste of grease and rust-removing sand.

[0050] With the addition of a pull rope 66 and a guide arm 68, the pull rope 66 pulls the suction head 65 when it reciprocates left and right, thereby changing the angle of the suction head 65. This further enhances the area of ​​the suction head 65 that can recover rust sand and grease, significantly reducing the economic losses caused by the device when maintaining the oil storage tank.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spraying device for the inner surface of an oil storage warehouse, comprising a movable workbench (1) and movable casters (2), wherein the casters (2) are evenly mounted at the four corners of the bottom of the movable workbench (1), characterized in that: The top of the mobile workbench (1) is equipped with a rotating platform (3), the upper end of the rotating platform (3) is equipped with a detection integration device (31), and the left side of the detection integration device (31) is equipped with a nozzle (4). The upper end of the rotating platform (3) is equipped with a hydraulic lifting arm (33), and the other end of the hydraulic lifting arm (33) is equipped with a nozzle (4). The left side of the nozzle (4) is equipped with a protective disc (5), and the upper end of the rotating platform (3) is embedded with a pump body (7). The inner cavity of the protective disc (5) is equipped with a recycling mechanism (6). The recycling mechanism (6) includes a rotating disc (61). A round shaft (62) is mounted on the top of the rotating disc (61). A slotted block (63) is provided on the outside of the round shaft (62). A suction head (65) is mounted on the upper end face of the slotted block (63). A pull rope (66) is mounted on the bottom of the suction head (65). The other end of the pull rope (66) is connected to a guide arm (68). The guide arm (68) is mounted in the inner cavity of the protective disc (5).

2. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The bottom of the guide arm (68) is provided with a horizontal groove, the inner cavity of the horizontal groove is slidably connected to the outside of the round shaft (62), and the outside of the round shaft (62) is fitted with a protective sleeve.

3. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The pump body (7) has a flange pipe at its inlet and a second bellows pipe (71) at its outlet. The other end of the second bellows pipe (71) is connected to the nozzle (4).

4. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The detection integration device (31) includes a base arm, a telescopic arm is mounted on the outside of the base arm, and a lifting cylinder is mounted on the outside of the telescopic arm. The top of the mobile workbench (1) is equipped with a control system, and a torque limiter and a collision avoidance sensor are mounted on the outside of the telescopic arm.

5. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The bottom of the rotating platform (3) is equipped with a turntable (36), the bottom of the turntable (36) is equipped with a geared motor (32), the outside of the geared motor (32) is equipped with a limit arm (34), and the limit arm (34) is connected to the bottom of the movable worktable (1).

6. The oil storage warehouse inner surface spraying equipment according to claim 5, characterized in that: The output shaft of the geared motor (32) is sleeved with a spherical bearing (35), which is embedded in the lower end face of the movable worktable (1). The bottom of the turntable (36) is evenly distributed with annular sliders (37), and annular guide disks (38) are slidably connected to the outside of the annular sliders (37). Annular grooves are opened on the top of the annular guide disks (38), and the annular guide disks (38) are connected to the movable worktable (1).

7. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The bottom of the guide arm (68) is provided with a track groove, and a track slider is slidably connected to the inner cavity of the track groove. The track slider is connected to the slotted block (63).

8. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The bottom of the suction head (65) is connected to a reinforcing arm (64) via a hinge, and the bottom of the reinforcing arm (64) is connected to the upper surface of the slotted block (63).

9. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The bottom of the rotating disk (61) is connected to a support shaft via a seated bearing. The bottom of the support is connected to the bottom of the inner cavity of the protective disk (5), and a rubber sleeve is fitted onto the outside of the rotating disk (61) via the seated bearing.

10. The oil storage warehouse inner surface spraying equipment according to claim 1, characterized in that: The bottom of the protective plate (5) is equipped with a dust collection mechanism (51), and the outside of the dust collection mechanism (51) is equipped with a cloth bag. The input end of the dust collection mechanism (51) is connected to a first corrugated pipe (67), and the other end of the first corrugated pipe (67) is connected to the outside of the suction head (65).