A cabin cleaning device based on a stainless steel chemical tanker

Abstract

The present application relates to the technical fields of ocean engineering, and discloses a cabin cleaning device based on a stainless steel chemical ship, which comprises a robot main body, a high-pressure water pipe arranged on the robot main body, a double-way pipe rotatably arranged at the end of the high-pressure water pipe, and a connecting pipe detachably installed with the double-way pipe, wherein one end of the connecting pipe close to the double-way pipe is a water inlet end, and the other end is a water outlet end; a front-end nozzle is arranged at the water outlet end of the connecting pipe, and the cabin cleaning device further comprises a centrifugal jet flow assembly arranged on the connecting pipe, wherein the centrifugal jet flow assembly comprises a flow divider fixed at the water outlet end of the connecting pipe and a flow dividing channel arranged on the flow divider, the flow divider is fixed on the front-end nozzle, and a plurality of flow through openings are arranged on the front-end nozzle in the circumferential direction. Through the arrangement of the centrifugal jet flow assembly and the driving mechanism, the impeller is driven to rotate by using the kinetic energy of the water flow, and the adjusting disc is switched to the centrifugal jet flow mode, so that the stubborn stains can be efficiently stripped.

Description

Technical Field

[0001] This invention relates to the field of marine engineering technology, and in particular to a cabin cleaning device for stainless steel chemical tankers. Background Technology

[0002] Stainless steel chemical tankers, as special transport vessels, are an important component of marine engineering equipment. They are mainly used to load and transport various liquid chemicals, including petrochemical products, organic chemicals, and inorganic chemicals. The tanker compartments must be cleaned after each transport mission. To avoid exposing crew members to unsafe chemical working environments, tank cleaning robots, as an important piece of equipment in the field of marine engineering, are widely used. These robots, with the aid of remote control, can adhere to the bulkheads and move freely, using high-pressure water jets to clean the tanks, effectively improving operational safety.

[0003] The existing wall-climbing robot disclosed in CN113060251A includes a frame, a cleaning mechanism, a drive mechanism, permanent magnet casters, and an arc-shaped magnet. The cleaning mechanism is mounted on the frame. The drive mechanism includes two drive wheels, which are mounted at the front end of the frame and symmetrically distributed on opposite sides of the frame. The permanent magnet casters are mounted at the end of the frame. The arc-shaped magnet is mounted at the front end of the frame and located between the two drive wheels, with the arc surface of the arc facing forward and the magnetic force of the arc decreasing from top to bottom along the arc surface. Although the above technical solution can walk on the complex surface of the cabin and can transition between walls with a certain angle of inclination, it has the advantages of high safety and strong transition ability.

[0004] However, in current technologies, most tank cleaning robots adopt a fixed spray mode with a single or multiple nozzles. While high-pressure direct-fire nozzles can generate a large positive impact force, they are insufficient to break down the internal structure and intermolecular bonding between the high-viscosity chemicals on the hull surface and the dense adhesive layer formed by the chemicals. This results in poor cleaning performance. Although some tank cleaning robots are equipped with rotating spray arms to expand the cleaning coverage, the tangential flow velocity generated by the rotating spray arms is limited and cannot generate effective shearing force on the adhesive layer, making it difficult to remove stubborn stains. This problem of incomplete cleaning not only affects the quality of subsequent cargo transportation and causes product contamination, but also causes long-term accumulation of residual high-viscosity chemicals, which can corrode the stainless steel materials of the ship's hull and shorten the ship's service life. In addition, repeated rinsing of residual stains will generate a large amount of chemical-containing wastewater, increasing the cost and pressure of subsequent environmental treatment. Summary of the Invention

[0005] The purpose of this invention is to provide a tank cleaning device based on stainless steel chemical tankers, in order to solve the problem mentioned in the background art that existing tank cleaning robots mostly adopt a fixed spraying mode with a single or multiple nozzles, which results in incomplete cleaning when cleaning the high-viscosity chemical adhering layer on the bottom of the tank.

[0006] The present invention provides a tank cleaning device based on stainless steel chemical tankers, which adopts the following technical solution:

[0007] A tank cleaning device based on stainless steel chemical tankers, comprising:

[0008] Robot body;

[0009] High-pressure water pipes are installed on the robot's main body;

[0010] A two-way pipe, rotatably mounted at the end of the high-pressure water pipe;

[0011] The connecting pipe is detachable from the double-ended pipe. The end of the connecting pipe closest to the double-ended pipe is the water inlet, and the other end is the water outlet.

[0012] The front nozzle, located at the water outlet end of the connecting pipe, also includes:

[0013] A centrifugal jet assembly is mounted on a connecting pipe. The centrifugal jet assembly includes a distributor fixed to the outlet end of the connecting pipe and a distribution channel formed on the distributor. The distributor is fixed to a front nozzle, and the front nozzle has multiple sets of flow ports along the circumferential direction. A centrifugal disc is fixed outside the distributor, and multiple sets of flow channels are formed along the circumferential direction on the centrifugal disc. The cross-section of the flow channels is arc-shaped. An adjusting disc is rotatably mounted inside the connecting pipe. The adjusting disc rotatably fits against the surface of the distributor, and multiple sets of through holes are formed along the circumferential direction on the adjusting disc.

[0014] Furthermore, the diversion channel includes multiple sets of first channels and second channels arranged at intervals, with the number of first channels and second channels being equal. The first channels correspond one-to-one with the flow ports, the second channels correspond one-to-one with the flow channels, and the number of through holes is equal to the number of first channels.

[0015] In the initial state, the through hole and the first channel are connected, and the second channel is closed. At this time, the water flows through the through hole, the first channel and the flow port in sequence, and is sprayed out through the front nozzle. When the adjusting plate is rotated so that the through hole and the second channel are connected, the first channel is closed. At this time, the water flows through the through hole and the second channel in sequence, and is finally sprayed out through the flow channel.

[0016] Furthermore, a driving mechanism is provided inside the connecting pipe. The driving mechanism includes an impeller rotatably disposed inside the connecting pipe, a rotating shaft fixed at the center of the impeller, and a connecting frame symmetrically fixed on the rotating shaft. The connecting frame is fixedly connected to the adjusting plate. A bracket is fixedly connected inside the connecting pipe. The rotating shaft is rotatably connected to the bracket. A first torsion spring is provided on the rotating shaft.

[0017] Furthermore, a friction mechanism is also provided inside the connecting pipe. The friction mechanism includes a friction disc that rubs against the impeller, an extension rod symmetrically fixed on the friction disc, and vertical plates symmetrically fixed inside the connecting pipe. The extension rods pass through the corresponding vertical plates and are equipped with springs.

[0018] Furthermore, anti-slip pads are provided on the sides of the friction disc and the impeller that are close to each other.

[0019] Furthermore, a stop is fixedly connected to the end of the extension rod away from the friction disc.

[0020] Furthermore, a sliding column is fixedly connected to the connecting frame, and a sliding track for the sliding column to slide is provided inside the connecting tube.

[0021] Furthermore, a protective shell is fixed to the outside of the centrifuge disc, and the protective shell has an outlet that corresponds to and is the same number as the flow channel. Each set of outlets is equipped with a cleaning mechanism.

[0022] Furthermore, the cleaning mechanism includes a disc disposed inside the outlet, a connecting rod fixed on the disc, and a hinge seat fixed on the packaging shell. The other end of the connecting rod is rotatably connected to the hinge seat via a shaft, and both ends of the shaft are provided with a second torsion spring.

[0023] Furthermore, a rubber scraper is fixed to the circumferential edge of the disc, and the outer edge of the rubber scraper fits against the inner wall edge of the outlet.

[0024] The beneficial effects of this invention are:

[0025] 1. By incorporating a centrifugal jet assembly and drive mechanism, when facing a layer of high-viscosity chemicals adhering to the hull, the impeller is driven to rotate using the kinetic energy of the water flow itself, which in turn drives the regulating disc to switch to centrifugal jet mode. No additional electric or hydraulic drive device is required, effectively simplifying the system structure and reducing equipment manufacturing costs and failure risks. In addition, the arc-shaped structure of the flow channel in the centrifugal jet assembly can generate a centrifugal acceleration effect when the water flows through, forming a high-speed rotating centrifugal jet. The centrifugal jet not only has a greater impact force but also generates a strong tangential shear force, effectively destroying the structure of stubborn stains and achieving efficient removal of the layer of high-viscosity chemicals adhering to the hull, thus improving the cleaning efficiency and effectiveness of marine engineering equipment in ship hull cleaning operations.

[0026] 2. By incorporating a cleaning mechanism, the water flow impact causes the disc to overcome the elasticity of the second torsion spring and swing outward around the shaft at a certain angle. This causes the rubber scraper to swing in close contact with the inner wall of the outlet as the disc swings, thereby scraping away the residue adhering to the inner wall of the outlet. This achieves self-cleaning of the outlet and effectively avoids the problems of jet pressure attenuation and reduced cleaning efficiency caused by blockage. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a three-dimensional structural diagram of the high-pressure water pipe, rotating nozzle, connecting pipe, front nozzle and centrifugal jet assembly of the present invention.

[0029] Figure 3 This is an exploded three-dimensional structural diagram of the high-pressure water pipe, rotating nozzle, and connecting pipe of the present invention.

[0030] Figure 4 This is a side view cross-sectional diagram of the connecting pipe, front nozzle, centrifugal jet assembly, drive mechanism and friction mechanism of the present invention.

[0031] Figure 5 This is a three-dimensional cross-sectional view of the front nozzle and centrifugal jet assembly of the present invention;

[0032] Figure 6 This is a front view cross-sectional diagram of the front nozzle, flow divider, flow channel, flow port, centrifugal disc, and flow channel of the present invention;

[0033] Figure 7 This is a three-dimensional structural diagram of the adjusting disc, through hole, and driving mechanism of the present invention;

[0034] Figure 8 This is an exploded three-dimensional structural diagram of the distributor, impeller, and friction disk of the present invention.

[0035] Figure 9 This is a three-dimensional cross-sectional view of the connecting pipe of the present invention;

[0036] Figure 10 This is a three-dimensional structural diagram of the packaging shell, outlet, and cleaning mechanism of the present invention.

[0037] Figure 11 This is a three-dimensional structural diagram of the cleaning mechanism of the present invention;

[0038] Figure 12 This is a three-dimensional structural diagram of the disc and rubber scraper of the present invention.

[0039] In the picture:

[0040] 100. Robot body; 200. High-pressure water pipe; 300. Dual-way pipe; 400. Connecting pipe; 500. Front nozzle; 600. Centrifugal jet assembly; 601. Diverter; 602. Diverting channel; 6021. First channel; 6022. Second channel; 603. Flow port; 604. Centrifugal disc; 605. Flow channel; 606. Adjusting disc; 607. Through hole; 608. Encasing shell; 609. Outlet; 700. Drive mechanism; 701. Impeller; 702. Shaft; 703. Connecting frame; 704. Support; 705. First torsion spring; 706. Sliding column; 707. Slide rail; 800. Friction mechanism; 801. Friction disc; 802. Extension rod; 803. Vertical plate; 804. Spring; 805. Stop block; 900. Cleaning mechanism; 901. Disc; 902. Connecting rod; 903. Hinge seat; 904. Shaft; 905. Second torsion spring; 906. Rubber scraper. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Reference Figures 1-2 A cleaning device for the hold of a stainless steel chemical tanker includes a robot body 100, a high-pressure water pipe 200 mounted on the robot body 100, a double-pass pipe 300 rotatably mounted at the end of the high-pressure water pipe 200, a hydraulic cylinder assembly mounted on the high-pressure water pipe 200 to control the rotation of the double-pass pipe 300 to achieve angle adjustment, and a connecting pipe 400 detachably mounted on the double-pass pipe 300. The end of the connecting pipe 400 near the double-pass pipe 300 is the water inlet, and the other end is the water outlet. A front nozzle 500 is mounted at the water outlet of the connecting pipe 400. The high-pressure water pipe 200 provides high-pressure water for the cleaning operation through an external pump.

[0043] Reference Figures 2-6 It also includes a centrifugal jet assembly 600, which is installed on the connecting pipe 400. The centrifugal jet assembly 600 includes a diverter 601 fixed to the water outlet end of the connecting pipe 400 and a diverter channel 602 opened on the diverter 601. The diverter 601 is fixed on the front nozzle 500. The front nozzle 500 has multiple sets of flow ports 603 opened along the circumferential direction. A centrifugal disc 604 is fixed outside the diverter 601. The centrifugal disc 604 has multiple sets of flow channels 605 opened along the circumferential direction. The cross section of the flow channel 605 is arc-shaped. The arc-shaped structure can generate a centrifugal acceleration effect when the water flows through. An adjusting disc 606 is rotatably installed inside the connecting pipe 400. The adjusting disc 606 rotatably fits against the surface of the diverter 601. The adjusting disc 606 has multiple sets of through holes 607 opened along the circumferential direction.

[0044] Specifically, the diversion channel 602 includes multiple sets of first channels 6021 and second channels 6022 arranged at intervals. The number of first channels 6021 and second channels 6022 is equal. The number of first channels 6021 is the same as the number of flow ports 603 and they correspond one-to-one, forming a water flow transmission path in the conventional direct jet cleaning mode. The number of second channels 6022 is the same as the number of flow channels 605 and they correspond one-to-one, forming a water flow transmission path in the centrifugal jet cleaning mode. The number of through holes 607 is equal to the number of first channels 6021. The opening and closing of different paths can be switched by the rotation of the adjusting plate 606.

[0045] In the initial state, the through hole 607 and the first channel 6021 are connected, while the second channel 6022 is closed. High-pressure water passes through the through hole 607, the first channel 6021, and the flow port 603 in sequence, and is sprayed out through the front nozzle 500. At this time, the water flow performs preliminary cleaning of the cabin in a conventional direct spray mode, which is suitable for daily cleaning of most areas of the cabin. When encountering stubborn stains such as high-viscosity chemical adhesive layers on the bottom of the cabin, the control adjustment plate 606 is rotated. When the through hole 607 and the second channel 6022 are connected, the first channel 6021 is closed. High-pressure water passes through the through hole 607 and the second channel 6022 in sequence, and is finally sprayed outward through the arc-shaped flow channel 605 on the centrifugal disc 604. Due to the arc-shaped structure of the flow channel 605, the water flow generates centrifugal force when passing through, forming a high-speed rotating centrifugal jet. The centrifugal jet not only has a greater impact force, but also generates a strong tangential shear force, achieving efficient removal of stubborn stains.

[0046] Reference Figure 4 , Figures 7-9 A drive mechanism 700 is provided inside the connecting pipe 400. The drive mechanism 700 includes an impeller 701 rotatably disposed inside the connecting pipe 400, a rotating shaft 702 fixed at the center of the impeller 701, and connecting brackets 703 symmetrically fixed on the rotating shaft 702. The connecting brackets 703 are fixedly connected to the adjusting plate 606. A bracket 704 is fixedly connected inside the connecting pipe 400. The rotating shaft 702 passes through the central hole of the bracket 704 and is rotatably connected to the bracket 704. A first torsion spring 705 is provided on the rotating shaft 702. The two ends of the first torsion spring 705 are respectively fixed to the connecting pipe 702. Specifically, on the frame 703 and bracket 704, when it is necessary to clean the high-viscosity chemical adhering layer at the bottom of the tank, the operator increases the water pressure of the external pump. The high-speed water flow impacts the impeller 701, causing it to rotate. The impeller 701 drives the adjusting plate 606 to rotate against the elastic force of the first torsion spring 705 through the rotating shaft 702 and the connecting frame 703 until the through hole 607 is aligned with the second channel 6022, switching to the centrifugal jet cleaning mode. When the water pressure decreases, the first torsion spring 705 releases its elastic potential energy, driving the adjusting plate 606 to automatically reset and return to the normal direct jet cleaning mode.

[0047] It should be noted that a sliding column 706 is fixedly connected to the connecting frame 703, and a slide rail 707 is provided in the connecting tube 400 for the sliding column 706 to slide. The function of the sliding column 706 and the slide rail 707 is to limit the rotation of the connecting frame 703 and the adjusting plate 606.

[0048] Furthermore, refer to Figure 4 and Figure 8 The connecting pipe 400 is also equipped with a friction mechanism 800. The friction mechanism 800 includes a friction disc 801 that is in frictional contact with the impeller 701, an extension rod 802 that is symmetrically fixed on the friction disc 801, and a vertical plate 803 that is symmetrically fixed in the connecting pipe 400. The extension rod 802 passes through the corresponding vertical plate 803 and is equipped with a spring 804. One end of the spring 804 abuts against the inner side of the vertical plate 803, and the other end is in close contact with the side of the friction disc 801. The elastic deformation of the spring 804 generates axial pressure to ensure that the friction disc 801 and the impeller 701 maintain friction. A stop block 805 is fixedly connected to the end of the extension rod 802 away from the friction disc 801. The function of the stop block 805 is to prevent the extension rod 802 from detaching from the corresponding vertical plate 803.

[0049] Among them, anti-slip pads are provided on the side of friction disc 801 and impeller 701 that are close to each other, and the anti-slip pads can be made of rubber.

[0050] Specifically, when the high-pressure water pipe 200 outputs normal water pressure, the friction disc 801, under the elastic action of the spring 804, is tightly attached to the back of the impeller 701. At this time, the static friction between the two is greater than the torque of the impeller 701 driven by the normal water flow, and the impeller 701 remains stationary. As the water pressure increases, the impact force of the high-speed water flow on the impeller 701 increases, and at the same time, dynamic pressure is formed on the surface of the friction disc 801, pushing it to overcome the elastic force of the spring 804 and move along the extension rod 802. The normal pressure between the friction disc 801 and the impeller 701 decreases and the friction decreases. When the water pressure reaches the preset threshold, the water flow driving torque exceeds the friction resistance, and the impeller 701 drives the rotating shaft 702 to rotate. Through the connecting bracket 703, the adjusting disc 606 is rotated until the through hole 607 is aligned with the second channel 6022, closing the first channel 6021. The high-pressure water is ejected through the arc-shaped flow channel 605 of the centrifugal disc 604 to form a high-speed centrifugal jet, peeling off the stubborn adhesive layer.

[0051] When the water pressure decreases, the water flow driving force weakens, the spring 804 pushes the friction disc 801 to reset and increases the friction force to stop the impeller 701 from rotating, the first torsion spring 705 drives the adjustment disc 606 to reset, restore the direct water flow mode, and complete the automatic switching of the cleaning mode.

[0052] Furthermore, refer to Figures 10-12A casing 608 is fixed to the outside of the centrifugal disc 604. The casing 608 has outlets 609 that correspond to and are the same number as the flow channels 605. Each set of outlets 609 is equipped with a cleaning mechanism 900. The cleaning mechanism 900 includes a disc 901 set in the outlet 609, a connecting rod 902 fixed on the disc 901, and a hinge seat 903 fixed on the casing 608. The other end of the connecting rod 902 is rotatably connected to the hinge seat 903 through a shaft 904. A second torsion spring 905 is set at both ends of the shaft 904. One end of the second torsion spring 905 is fixed to the connecting rod 902, and the other end is fixed in the hinge seat 903 to provide a restoring elastic force for the disc 901. A rubber scraper 906 is fixed to the circumferential edge of the disc 901. The outer edge of the rubber scraper 906 fits against the inner wall edge of the outlet 609 and can effectively remove the residues attached to the inner wall of the outlet 609.

[0053] Specifically, in centrifugal jet mode, when the high-pressure water flow is accelerated through the flow channel 605 of the centrifugal disc 604, it is ejected at high speed from the outlet 609 of the casing 608. The powerful impact force generated by the high-speed water flow acts on the surface of the disc 901, causing the disc 901 to overcome the elastic force of the second torsion spring 905 and swing outward around the shaft 904 at a certain angle. At this time, the rubber scraper 906 swings closely against the inner wall of the outlet 609 along with the swing of the disc 901, thereby scraping off the residue attached to the inner wall of the outlet 609.

[0054] The present invention provides a ship cabin cleaning device based on a stainless steel chemical tanker. The working principle is as follows: During operation, the robot body 100 is placed inside the ship cabin. An external pump provides high-pressure water through a high-pressure water pipe 200. Initially, the through hole 607 of the adjusting disc 606 is connected to the first channel 6021, while the second channel 6022 is closed. High-pressure water flows sequentially through the through hole 607, the first channel 6021, and the flow port 603, and is sprayed out from the front nozzle 500 in a conventional direct-spray mode for routine cleaning of most areas of the ship cabin. When encountering stubborn stains such as a high-viscosity chemical adhesion layer on the bottom of the cabin, the operator increases the water pressure of the external pump. The high-pressure water flows into the connecting pipe 400, and the increased water pressure causes the water flow to... Dynamic pressure is formed on the surface of friction disc 801, which pushes friction disc 801 to overcome the elastic force of spring 804 and move along extension rod 802, releasing the friction force with impeller 701. At this time, impeller 701 rotates smoothly. While impeller 701 rotates, shaft 702 and connecting frame 703 drive adjustment disc 606 to rotate against the elastic force of first torsion spring 705. When adjustment disc 606 rotates to the point where through hole 607 and second channel 6022 are connected, first channel 6021 is closed. High-pressure water enters the arc-shaped flow channel 605 of centrifugal disc 604 through second channel 6022. Due to the arc-shaped structure of flow channel 605, water flow generates centrifugal force, forming a high-speed rotating centrifugal jet that is ejected from outlet 609 of enclosure shell 608.

[0055] During this process, the high-speed water flow impacts the disc 901 of the cleaning mechanism 900, causing it to swing around the shaft 904 against the elastic force of the second torsion spring 905. The rubber scraper 906 scrapes away residue by adhering to the inner wall of the outlet 609. When the water pressure decreases, the first torsion spring 705 drives the adjusting disc 606 to reset, restoring the direct spray mode. The spring 804 pushes the friction disc 801 to reset, increasing the friction with the impeller 701 to stop it from rotating. The second torsion spring 905 drives the disc 901 to reset, shielding the inner wall of the outlet 609.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A tank cleaning device for a stainless steel chemical tanker, comprising: Robot body (100); A high-pressure water pipe (200) is installed on the robot body (100); A double-ended pipe (300) is rotatably mounted at the end of the high-pressure water pipe (200); The connecting pipe (400) is detachably installed with the double-pass pipe (300). The end of the connecting pipe (400) closest to the double-pass pipe (300) is the water inlet, and the other end is the water outlet. A front nozzle (500), located at the water outlet end of a connecting pipe (400), is characterized in that it further includes: A centrifugal jet assembly (600) is mounted on a connecting pipe (400). The centrifugal jet assembly (600) includes a distributor (601) fixed to the outlet end of the connecting pipe (400) and a distribution channel (602) opened on the distributor (601). The distributor (601) is fixed on a front nozzle (500). The front nozzle (500) has multiple sets of flow ports (603) opened along the circumferential direction. A centrifugal disc (604) is fixed outside the distributor (601). The centrifugal disc (604) has multiple sets of flow channels (605) opened along the circumferential direction. The cross section of the flow channel (605) is arc-shaped. An adjusting disc (606) is rotatably mounted inside the connecting pipe (400). The adjusting disc (606) is rotatably attached to the surface of the distributor (601). The adjusting disc (606) has multiple sets of through holes (607) opened along the circumferential direction.

2. The tank cleaning device for stainless steel chemical tankers according to claim 1, characterized in that: The diversion channel (602) includes multiple sets of first channels (6021) and second channels (6022) arranged at intervals. The number of first channels (6021) and second channels (6022) is equal. The first channels (6021) correspond one-to-one with the flow ports (603), the second channels (6022) correspond one-to-one with the flow channels (605), and the number of through holes (607) is equal to the number of first channels (6021). In the initial state, the through hole (607) and the first channel (6021) are connected, and the second channel (6022) is closed. At this time, the water flows through the through hole (607), the first channel (6021) and the flow port (603) in sequence, and is sprayed out through the front nozzle (500). When the regulating plate (606) rotates so that the through hole (607) and the second channel (6022) are connected, the first channel (6021) is closed. At this time, the water flows through the through hole (607) and the second channel (6022) in sequence, and is finally sprayed out through the flow channel (605).

3. The ship compartment cleaning device based on stainless steel chemical tankers according to claim 1, characterized in that: The connecting tube (400) is provided with a driving mechanism (700). The driving mechanism (700) includes an impeller (701) rotatably disposed in the connecting tube (400), a rotating shaft (702) fixed at the center of the impeller (701), and a connecting frame (703) symmetrically fixed on the rotating shaft (702). The connecting frame (703) is fixedly connected to the adjusting plate (606). A bracket (704) is fixedly connected in the connecting tube (400). The rotating shaft (702) is rotatably connected to the bracket (704). A first torsion spring (705) is provided on the rotating shaft (702).

4. The ship compartment cleaning device based on stainless steel chemical tankers according to claim 3, characterized in that: The connecting tube (400) is also provided with a friction mechanism (800). The friction mechanism (800) includes a friction disc (801) that is in frictional contact with the impeller (701), an extension rod (802) that is symmetrically fixed on the friction disc (801), and a vertical plate (803) that is symmetrically fixed in the connecting tube (400). The extension rod (802) passes through the corresponding vertical plate (803) and is provided with a spring (804).

5. The tank cleaning device for stainless steel chemical tankers according to claim 4, characterized in that: Anti-slip pads are provided on the sides of the friction disc (801) and the impeller (701) that are close to each other.

6. The tank cleaning device for stainless steel chemical tankers according to claim 4, characterized in that: A stop (805) is fixedly connected to the end of the extension rod (802) away from the friction disc (801).

7. The tank cleaning device for stainless steel chemical tankers according to claim 3, characterized in that: A sliding column (706) is fixedly connected to the connecting frame (703), and a sliding track (707) for the sliding column (706) to slide is provided in the connecting tube (400).

8. The tank cleaning device for stainless steel chemical tankers according to claim 1, characterized in that: The centrifugal disc (604) is fixed with a wrapping shell (608), and the wrapping shell (608) has an outlet (609) that corresponds to and is the same number as the flow channel (605). Each set of outlets (609) is equipped with a cleaning mechanism (900).

9. The tank cleaning device for stainless steel chemical tankers according to claim 8, characterized in that: The cleaning mechanism (900) includes a disc (901) disposed in the outlet (609), a connecting rod (902) fixed on the disc (901), and a hinge seat (903) fixed on the casing (608). The other end of the connecting rod (902) is rotatably connected to the hinge seat (903) via a shaft (904). Both ends of the shaft (904) are provided with a second torsion spring (905).

10. The tank cleaning device for stainless steel chemical tankers according to claim 9, characterized in that: A rubber scraper (906) is fixed to the circumferential edge of the disc (901), and the outer edge of the rubber scraper (906) fits against the inner wall edge of the outlet (609).

Images