FPSO steel structure anticorrosion treatment device
By introducing grinding, transmission, and dust extraction mechanisms into the FPSO steel structure anti-corrosion treatment device, the problem of cleaning impurities on the steel structure surface was solved, achieving uniform coating coverage and efficient spraying, thus improving the anti-corrosion effect and the degree of automation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN JINCHENG YANGFAN OCEAN ENG DESIGN CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing FPSO steel structure anti-corrosion treatment equipment cannot effectively clean impurities and welding slag from the steel structure surface before spraying anti-corrosion coating, resulting in poor adhesion of the anti-corrosion coating and affecting the spraying quality and anti-corrosion effect.
A device was designed that includes a grinding, transmission, dust collection, and spraying mechanism. The grinding mechanism cleans surface impurities, the dust collection mechanism removes debris, the spraying mechanism improves paint adhesion, and the transmission mechanism drives the grinding parts to move up and down to ensure uniform paint coverage.
It improves the adhesion and spraying quality of anti-corrosion coatings, enhances the anti-corrosion treatment effect, and increases the degree of automation.
Smart Images
Figure CN224542022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure corrosion protection, and in particular to an anti-corrosion treatment device for FPSO steel structures. Background Technology
[0002] A floating production storage and offloading vessel (FPSO) is a vessel that integrates oil and gas processing, storage and transportation, and living and power supply. It is characterized by strong wind and wave resistance, deep water adaptability and reusability. In FPSO, a certain thickness of outer coating needs to be sprayed on the surface of a large number of steel structures to resist corrosion in the marine environment.
[0003] A search revealed a Chinese patent publication number CN218078494U, which discloses an anti-corrosion treatment device for steel structure towers resistant to marine climates. The device includes a fixed frame, a spraying mechanism, a pressure roller, a material roller, a material box, and a moving roller. The pressure roller is installed on the lower left side of the fixed frame, and the moving roller is installed on the lower right side of the fixed frame. This device, by setting up the material roller and pressure roller, facilitates the laying of a fiber mesh on the steel structure surface. The fiber mesh enhances the toughness of the anti-corrosion coating, preventing cracking of the anti-corrosion coating on the steel structure surface. The design of the two spraying mechanisms facilitates the spraying of the anti-corrosion coating, allowing the fiber mesh to be wrapped inside the anti-corrosion coating. This allows the anti-corrosion coating and the fiber mesh to complement each other, improving the overall stability of the anti-corrosion layer and thus enhancing the anti-corrosion performance of the steel structure. However, current steel structure anti-corrosion treatment devices do not easily clean impurities and welding slag adhering to the surface of the steel structure column before spraying the anti-corrosion coating, making it difficult for the anti-corrosion coating to adhere to the surface of the steel structure components, resulting in reduced spraying quality and affecting the anti-corrosion treatment effect. Utility Model Content
[0004] The purpose of this invention is to provide an anti-corrosion treatment device for FPSO steel structures in order to solve the above-mentioned problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] A corrosion protection device for FPSO steel structures includes a movable base with several casters rotatably connected to its bottom. A material cylinder is fixedly connected to the top of the movable base, and a stirring mechanism is mounted on the material cylinder. The stirring mechanism includes a motor, which is fixedly connected to the movable base. A main shaft is fixedly connected to the output shaft of the motor, and several stirring rods are fixedly connected to the side of the main shaft, which is rotatably connected inside the material cylinder. A lifting mechanism is mounted on the movable base, and the lifting mechanism includes an electric push rod. A lifting rod is fixedly connected to the output shaft of the electric push rod, and a grinding mechanism is mounted at one end of the lifting rod. The grinding mechanism includes a prying component and a grinding component. The end of the prying component is fixedly connected to the grinding component. One end of the lifting rod is fixedly connected to a support frame. A connecting ring is fixedly connected to the support frame. A transmission mechanism is movably mounted on the connecting ring. The transmission mechanism is connected between the main shaft and the prying component and is used to drive the grinding component to move up and down to grind the steel structure. The moving seat is equipped with a dust collection mechanism and a spraying mechanism. The dust collection mechanism includes a dust collection head and a dust collection component. The spraying mechanism includes a spray nozzle and a material feeding component. The dust collection head and the spray nozzle are mounted on the lifting rod at the end away from the support frame.
[0007] Preferably, the prying assembly includes a fixed plate, a fixed shaft rotatably connected to the fixed plate, a pry bar fixedly connected to the fixed shaft, the fixed shaft being positioned in the middle of the pry bar, a mounting base fixedly connected to one end of the pry bar, a grinding component fixedly connected to the mounting base, and a connecting plate fixedly connected to the end of the pry bar away from the mounting base.
[0008] Preferably, the transmission mechanism includes a transmission shaft, which is fixedly connected to the top of the main shaft. The transmission shaft has several vertical grooves, and a reciprocating screw is movably sleeved on the grooves. The reciprocating screw is rotatably connected to the top of the connecting ring. A movable plate is threaded onto the reciprocating screw, and an mounting sleeve is rotatably connected to the movable plate. A connecting seat is fixedly connected to the mounting sleeve, and a horizontal groove is provided on the connecting seat. The connecting plate is movably disposed in the horizontal groove.
[0009] Preferably, the vacuuming assembly includes a collection box, which is fixedly connected to the top of the movable base. A vacuum cleaner is fixedly installed on the collection box, and a vacuum hose is fixedly connected to the vacuum cleaner's suction end. A vacuum head is fixedly connected to the end of the vacuum hose away from the vacuum cleaner, and a connecting block is fixedly connected to the vacuum head. The connecting block is fixedly connected to one end of the lifting rod.
[0010] Preferably, a lifting block is fixedly connected to the bottom of the lifting rod, and the lifting block is fitted onto the middle section of the vacuum pipe.
[0011] Preferably, the spraying mechanism includes a pump body, an extraction pipe fixedly connected to the pump body's extraction end, the extraction pipe being disposed inside the material cylinder, a material supply pipe fixedly connected to the pump body's output end, a connecting plate fixedly connected to the end of the material supply pipe away from the extraction pipe, a mounting frame fixedly connected to the side of one end of the lifting rod, the connecting plate fixedly connected to the top of the mounting frame, and the spray nozzle mounted on the connecting plate and connected to the material supply pipe.
[0012] The beneficial effects are as follows: A grinding mechanism, a transmission mechanism, a dust collection mechanism, and a spraying mechanism are incorporated. The main shaft and stirring rod agitate the anti-corrosion coating in the barrel, preventing it from solidifying. Furthermore, the transmission mechanism allows the main shaft to rotate and agitate, driving the grinding components to grind the steel structural parts requiring anti-corrosion treatment. This results in better adhesion of the anti-corrosion coating after spraying onto the steel structural parts, improving the anti-corrosion treatment effect. Simultaneously, the dust collection mechanism absorbs the debris and dust collected during cleaning, enhancing the level of automation.
[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of an anti-corrosion treatment device for FPSO steel structures according to the present invention;
[0016] Figure 2 This is a cross-sectional view of the feed cylinder of the FPSO steel structure anti-corrosion treatment device described in this utility model;
[0017] Figure 3 This is a schematic diagram of the FPSO steel structure anti-corrosion treatment device without the moving base and the material cylinder described in this utility model;
[0018] Figure 4 This is a schematic diagram of the lifting mechanism and transmission mechanism of the FPSO steel structure anti-corrosion treatment device described in this utility model;
[0019] Figure 5 This is a schematic diagram of the grinding mechanism of the anti-corrosion treatment device for FPSO steel structure described in this utility model;
[0020] Figure 6 This is a schematic diagram showing the connection between the lifting mechanism, dust extraction mechanism, and spraying mechanism of the FPSO steel structure anti-corrosion treatment device described in this utility model.
[0021] The reference numerals in the attached drawings are explained as follows: 101, movable seat; 102, caster wheel; 103, material cylinder; 201, motor; 202, main shaft; 203, stirring rod; 301, electric push rod; 302, lifting rod; 303, mounting frame; 304, support frame; 305, connecting ring; 306, lifting block; 401, fixing plate; 402, fixing shaft; 403, pry bar; 404, connecting plate; 405 406. Mounting base; 501. Grinding part; 502. Drive shaft; 503. Slide groove; 504. Reciprocating lead screw; 505. Moving plate; 506. Mounting sleeve; 507. Connecting seat; 608. Collection box; 609. Vacuum cleaner; 6000. Vacuum pipe; 6001. Vacuum head; 6002. Connecting block; 701. Pump body; 702. Extraction pipe; 703. Feeding pipe; 704. Connecting plate; 705. Nozzle. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] The present invention will be further described below with reference to the accompanying drawings:
[0025] like Figure 1 — Figure 6As shown, an FPSO steel structure anti-corrosion treatment device includes a movable base 101. Several casters 102 are rotatably connected to the bottom of the movable base 101. The casters 102 are existing products with locking functions. A material cylinder 103 is bolted to the top of the movable base 101. A stirring mechanism is installed on the material cylinder 103, including a motor 201 bolted to the movable base 101. A main shaft 202 is connected to the output shaft of the motor 201 via a coupling. Several stirring rods 203 are bolted to the side of the main shaft 202. The main shaft 202 is rotatably connected inside the material cylinder 103. A lifting mechanism is installed on the movable base 101, including an electric push rod 301. A lifting rod 302 is bolted to the output shaft of the electric push rod 301. The arrangement of the electric push rod 301 and the lifting rod 302 enables the nozzle 705, the grinding part 406, and the dust suction head 604 to be raised and lowered. Furthermore, it can maintain normal grinding, dust collection, and spraying operations during the lifting process, improving ease of use and applicability. It can also perform anti-corrosion treatment on tall steel structural components. A grinding mechanism is provided at one end of the lifting rod 302. The grinding mechanism includes a prying component and a grinding component 406. The end of the prying component is connected to the grinding component 406 by bolts. A support frame 304 is welded to one end of the lifting rod 302. A connecting ring 305 is bolted to the support frame 304. A transmission mechanism is movably provided on the connecting ring 305. The transmission mechanism is connected between the main shaft 202 and the prying component and is used to drive the grinding component 406 to move up and down to grind the steel structural components. A dust collection mechanism and a spraying mechanism are provided on the moving seat 101. The dust collection mechanism includes a dust collection head 604 and a dust collection component. The spraying mechanism includes a spray nozzle 705 and a feeding component. The dust collection head 604 and the spray nozzle 705 are located on the end of the lifting rod 302 away from the support frame 304.
[0026] In this embodiment, the prying assembly includes a fixed plate 401, a fixed shaft 402 rotatably connected to the fixed plate 401, a pry bar 403 bolted to the fixed shaft 402, the fixed shaft 402 being positioned in the middle of the pry bar 403, a mounting base 405 bolted to one end of the pry bar 403, a grinding component 406 bolted to the mounting base 405, and a connecting disc 404 bolted to the end of the pry bar 403 away from the mounting base 405. Before spraying, the grinding component 406 needs to grind and clean the spraying area. During grinding, through the transmission mechanism, the pry bar 403 oscillates periodically around the fixed shaft 402, causing the mounting base 405 and the grinding component 406 to rub against each other on the surface of the steel structure. This helps to improve the adhesion of the anti-corrosion coating to the surface of the steel structure when spraying the anti-corrosion coating later.
[0027] In this embodiment, the transmission mechanism includes a transmission shaft 501, which is bolted to the top of the main shaft 202. The transmission shaft 501 has several vertical grooves 502. A reciprocating lead screw 503 is movably sleeved on each groove 502. The reciprocating lead screw 503 is rotatably connected to the top of the connecting ring 305. A movable plate 504 is threaded onto the reciprocating lead screw 503. A mounting sleeve 505 is rotatably connected to the movable plate 504. A connecting seat 506 is bolted to the mounting sleeve 505. The connecting seat 506 has a horizontal groove. The connecting disc 4... 04 The movable part is set in the transverse groove. When the main shaft 202 and the stirring rod 203 rotate to stir the anti-corrosion coating in the material cylinder 103, the main shaft 202 drives the reciprocating screw 503 to rotate through the transmission shaft 501 and the slide 502. The reciprocating screw 503 drives the movable plate 504 to move up and down. The movable plate 504 drives the connecting seat 506 to move up and down through the mounting sleeve 505. The connecting seat 506 drives the pry bar 403 to swing around the fixed shaft 402 through the connecting plate 404. Finally, the grinding part 406 can perform friction cleaning on the surface of the steel structure.
[0028] In this embodiment, the vacuuming assembly includes a collection box 601, which is bolted to the top of the movable base 101. A vacuum cleaner 602 is fixedly mounted on the collection box 601. A vacuum tube 603 is inserted into the vacuuming end of the vacuum cleaner 602. A vacuum head 604 is bolted to the end of the vacuum tube 603 away from the vacuum cleaner 602. A connecting block 605 is bolted to the vacuum head 604. The connecting block 605 is bolted to one end of the lifting rod 302.
[0029] In this embodiment, a lifting block 306 is bolted to the bottom of the lifting rod 302. The lifting block 306 is fitted onto the middle section of the suction pipe 603. The lifting block 306 is designed to prevent the suction pipe 603 from getting tangled or bent excessively during the spraying process, which would affect the suction effect.
[0030] In this embodiment, the spraying mechanism includes a pump body 701. The pump body 701 has an extraction pipe 702 bolted to its extraction end. The extraction pipe 702 is located inside the material cylinder 103. The pump body 701 has a supply pipe 703 inserted into its output end. The end of the supply pipe 703 away from the extraction pipe 702 is bolted to a connecting plate 704. The lifting rod 302 has a mounting frame 303 bolted to its side. The connecting plate 704 is bolted to the top of the mounting frame 303. The spray nozzle 705 is mounted on the connecting plate 704 and connected to the supply pipe 703.
[0031] Working principle: When using this device, the movable seat 101 is moved to the position of the steel structure that needs anti-corrosion treatment. The electric push rod 301 is controlled to raise the lifting rod 302 to the highest point of the steel structure. The motor 201, vacuum cleaner 602, and pump body 701 are turned on, and the electric push rod 301 is controlled to move the lifting rod 302 downward from the high position. During the anti-corrosion treatment process, the motor 201 drives the main shaft 202 and the stirring rod 203 to rotate. The main shaft 202 drives the reciprocating screw 503 to rotate through the transmission shaft 501 and the slide 502. The reciprocating screw 503 drives the movable plate 504 to move up and down. The movable plate 504 drives the connecting seat 506 to move up and down through the mounting sleeve 505. The connecting seat 506 drives the pry bar 403 through the connecting plate 404. The lever 403 swings around the fixed axis 402, which drives the grinding part 406 to move through the mounting base 405. Ultimately, the grinding part 406 can perform friction cleaning on the surface of the steel structure. The vacuum cleaner 602 absorbs the cleaned welding slag and impurities through the suction pipe 603 and the suction head 604 and collects them into the collection box 601. At the same time, the pump body 701 draws the anti-corrosion coating in the material cylinder 103 through the extraction pipe 702 and delivers it to the nozzle 705 through the supply pipe 703. As the lifting rod 302 descends, the anti-corrosion coating is sprayed from the nozzle 705 onto the surface of the steel structure that has just been ground, which helps to enhance the adhesion of the anti-corrosion coating and improve the anti-corrosion treatment effect. In this way, the various surfaces of the steel structure are treated for anti-corrosion.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A corrosion protection device for FPSO steel structures, comprising a movable base (101), wherein a plurality of casters (102) are rotatably connected to the bottom of the movable base (101), and a material cylinder (103) is fixedly connected to the top of the movable base (101), characterized in that: A stirring mechanism is provided on the material cylinder (103). The stirring mechanism includes a motor (201), which is fixedly connected to the movable base (101). A main shaft (202) is fixedly connected to the output shaft of the motor (201). Several stirring rods (203) are fixedly connected to the side of the main shaft (202). The main shaft (202) is rotatably connected inside the material cylinder (103). A lifting mechanism is provided on the movable base (101). The lifting mechanism includes an electric push rod (301), and a lifting rod (302) is fixedly connected to the output shaft of the electric push rod (301). A grinding mechanism is provided at one end of the lifting rod (302). The grinding mechanism includes a prying component and a grinding component (406). The end of the prying component is connected to... The grinding component (406) is fixedly connected, and a lifting frame (304) is fixedly connected to one end of the lifting rod (302). A connecting ring (305) is fixedly connected to the lifting frame (304), and a transmission mechanism is movably arranged on the connecting ring (305). The transmission mechanism is connected between the main shaft (202) and the prying assembly, and is used to drive the grinding component (406) to move up and down to grind the steel structure. A dust collection mechanism and a spraying mechanism are provided on the moving seat (101). The dust collection mechanism includes a dust collection head (604) and a dust collection assembly. The spraying mechanism includes a spray nozzle (705) and a feeding assembly. The dust collection head (604) and the spray nozzle (705) are arranged on the lifting rod (302) at the end away from the lifting frame (304).
2. The anti-corrosion treatment device for FPSO steel structure according to claim 1, characterized in that: The prying assembly includes a fixed plate (401), a fixed shaft (402) is rotatably connected to the fixed plate (401), a pry bar (403) is fixedly connected to the fixed shaft (402), the fixed shaft (402) is located at the middle position of the pry bar (403), a mounting base (405) is fixedly connected to one end of the pry bar (403), the grinding part (406) is fixedly connected to the mounting base (405), and a connecting plate (404) is fixedly connected to one end of the pry bar (403) away from the mounting base (405).
3. The anti-corrosion treatment device for FPSO steel structure according to claim 2, characterized in that: The transmission mechanism includes a transmission shaft (501), which is fixedly connected to the top of the main shaft (202). The transmission shaft (501) has several vertical grooves (502). A reciprocating screw (503) is movably sleeved on the grooves (502). The reciprocating screw (503) is rotatably connected to the top of the connecting ring (305). A movable piece (504) is threaded onto the reciprocating screw (503). An mounting sleeve (505) is rotatably connected to the movable piece (504). A connecting seat (506) is fixedly connected to the mounting sleeve (505). A horizontal groove is opened on the connecting seat (506). The connecting disc (404) is movably disposed in the horizontal groove.
4. The anti-corrosion treatment device for FPSO steel structure according to claim 1, characterized in that: The vacuuming assembly includes a collection box (601) which is fixedly connected to the top of the movable base (101). A vacuum cleaner (602) is fixedly installed on the collection box (601). A vacuum tube (603) is fixedly connected to the vacuuming end of the vacuum cleaner (602). A vacuum head (604) is fixedly connected to the end of the vacuum tube (603) away from the vacuum cleaner (602). A connecting block (605) is fixedly connected to the vacuum head (604). The connecting block (605) is fixedly connected to one end of the lifting rod (302).
5. The anti-corrosion treatment device for FPSO steel structure according to claim 4, characterized in that: The bottom of the lifting rod (302) is fixedly connected to a lifting block (306), which is fitted onto the middle section of the suction pipe (603).
6. The anti-corrosion treatment device for FPSO steel structure according to claim 1, characterized in that: The spraying mechanism includes a pump body (701), an extraction pipe (702) fixedly connected to the extraction end of the pump body (701), the extraction pipe (702) being disposed inside the material cylinder (103), a supply pipe (703) fixedly connected to the output end of the pump body (701), a connecting plate (704) fixedly connected to the end of the supply pipe (703) away from the extraction pipe (702), a mounting frame (303) fixedly connected to the side of one end of the lifting rod (302), the connecting plate (704) fixedly connected to the top of the mounting frame (303), and the spray nozzle (705) mounted on the connecting plate (704) and connected to the supply pipe (703).