Lifting type transportation device for cabin washing

Abstract

The lifting type transportation device comprises a hanging bracket and a lifting mechanism, the hanging bracket is connected with a guide pulley and a plurality of guide ropes, the ends, away from the hanging bracket, of the guide ropes are used for being connected with the inner bottom wall of a condensate oil tank, and a guide channel is formed among the guide ropes; the lifting mechanism comprises a driving part, a traction rope and a hanging basket, one end of the traction rope is connected with the driving part, the other end is connected with the hanging basket after bypassing the guide pulley, and the driving part is used for driving the traction rope to move; the hanging basket comprises a hanging basket body and a plurality of hooking pieces fixed to the hanging basket body, and the hooking pieces are arranged on the outer side wall of the hanging basket at intervals. The safety of people walking out of the hanging basket can be improved.

Description

Technical Field

[0001] This application relates to the technical field of lifting and transporting equipment, and in particular to a lifting and transporting device for washing cabins. Background Technology

[0002] Condensate tanks are crucial storage facilities in offshore oil and gas field development, mitigating risks associated with condensate extraction. They also serve as essential for regular cleaning and inspection, ensuring smooth production in offshore oil and gas fields. Regular cleaning of condensate tanks is necessary to prevent the accumulation and mixing of condensate with air, water, or other substances, thus preventing potential risks such as fire, explosion, or environmental pollution. Regular cleaning also ensures the cleanliness and safety of the condensate tanks: removing residues, dirt, and debris, maintaining cleanliness and safety, and preventing potential corrosion, oxidation, or other adverse effects.

[0003] During the cleaning of condensate oil tanks, various special situations may arise, such as equipment malfunctions and stubborn stains, requiring on-site handling and resolution. When working below the tank, personnel must climb while carrying oxygen supply equipment. If portable oxygen cylinders are used, the current capacity of cylinders, which are the size of the cylinders a person can withstand, is insufficient for climbing up and down, and it also prevents access to other locations on the tank walls for inspection, repair, or cleaning. Therefore, the common method is to have personnel wearing long-tube breathing apparatus and transported into the tank using a lifting basket system. After the work inside the tank is completed, the basket is raised to the entrance wellhead, and the personnel are transported outside. However, during the process of personnel exiting the basket, the stress on the basket is unstable, and because the basket's size is smaller than the diameter of the entrance wellhead, it is prone to tilting or swaying at the entrance, posing a certain degree of danger. Utility Model Content

[0004] To improve the safety of personnel exiting the suspended basket, this application provides a lifting and transporting device for washing the cabin.

[0005] This application provides a lifting and transporting device for washing tanks, which adopts the following technical solution:

[0006] A lifting and transporting device for washing tanks, comprising:

[0007] A gantry, on which guide pulleys and multiple guide ropes are connected, the end of the guide ropes away from the gantry is used to connect to the bottom wall of the condensate tank, and a guide channel is formed between the multiple guide ropes;

[0008] The lifting mechanism includes a drive unit, a traction rope, and a suspended basket. One end of the traction rope is connected to the drive unit, and the other end passes around the guide pulley and is connected to the suspended basket. The drive unit is used to drive the traction rope to move.

[0009] The suspended platform includes a platform body and a plurality of hooks fixed to the platform body, the hooks being spaced apart around the perimeter of the platform.

[0010] By adopting the above technical solution, after the basket is lowered into the condensate oil tank's inlet wellhead, the traction rope is moved by the drive component. The basket rises and falls with the movement of the traction rope. Personnel can enter the basket and be transported to the condensate oil tank for inspection or cleaning. The basket slides into the guide channel, and the guide rope guides the vertical movement of the basket. If the basket sways during the lifting and lowering process, the side wall of the basket will abut against the guide rope, which can prevent the basket from tipping over and reduce the amplitude of the sway. Multiple hooks are installed on the basket body. When the basket rises to the inlet wellhead and the hooks are close to the inlet wellhead, the hooks are hooked onto the side wall of the inlet wellhead, further limiting the horizontal position of the basket and reducing the possibility of the basket swaying violently in the direction of personnel movement when personnel exit the basket.

[0011] Optionally, the hook includes a hook rotatably connected to the basket body.

[0012] By adopting the above technical solution, when the basket rises to the entrance of the cabin and the hooks approach the entrance of the cabin, each hook is rotated in sequence so that the hooks are hooked on the side wall of the entrance of the cabin; when personnel walk out of the basket body and the basket body shakes, the hooks abut against the side wall of the entrance of the cabin as the basket body shakes, thus hindering the movement of the basket body.

[0013] Optionally, the hook includes a sliding rod and a hanging plate, one end of the sliding rod passing through and slidably connected to the side wall of the basket body, and the other end of the sliding rod being rotatably connected to the hanging plate.

[0014] By adopting the above technical solution, when the hoist rises to the entrance of the cabin and the hook slides out of the entrance, the sliding rod makes one end of the sliding rod abut against the top of the entrance. Then, the hanging plate is rotated so that the side wall of the hanging plate abuts against the outer wall of the entrance. When personnel walk out of the hoist body, the hanging plate abuts against the side wall of the entrance, hindering the movement of the hoist body. When the hook is not needed, the sliding rod is slid so that most of the rod section is retracted into the hoist body, which will not obstruct the hoist's entry and exit from the entrance.

[0015] Optionally, the suspended platform body is provided with a plurality of guide cylinders, and one end of the guide cylinder is located outside the suspended platform body. The guide cylinders are provided in correspondence with the sliding rods. The end of the sliding rod located in the suspended platform passes through the guide cylinder and is slidably connected to the guide cylinder.

[0016] The guide cylinder is equipped with a force-applying component, which is used to drive the end of the slide rod located outside the basket body to move towards the basket.

[0017] By adopting the above technical solution, one end of the sliding rod is slidably connected to the gondola body via a guide cylinder. The guide cylinder provides guidance for the sliding of the sliding rod, improving its stability during sliding. Furthermore, when the hanging plate is not needed, rotating the hanging plate prevents it from abutting against the outer wall of the wellhead. The sliding rod will then slide under the action of the force-applying component, causing the hanging plate to slide closer to the gondola body, allowing most of the sliding rod section to be retracted into the gondola body. This improves the ease of use of the hook and hanger components.

[0018] Optionally, the force-applying component includes a return spring, one end of which is fixed to the inner wall of the guide cylinder, and the other end is fixedly connected to one end of the slide rod located inside the basket body.

[0019] By adopting the above technical solution, when the hanging plate is slid away from the main body of the suspended platform to drive the sliding rod, the return spring is stretched and in an extended state; after the hanging plate is rotated so that it moves away from the outer wall of the entrance well, the sliding rod loses resistance, the return spring gradually returns to its original length, thereby driving the sliding rod to slide, so that the sliding rod drives the hanging plate to move closer to the main body of the suspended platform.

[0020] Optionally, a limiting block is connected to one end of the slide rod located inside the basket body, and the limiting block is used to abut against the inner wall of the guide cylinder.

[0021] By adopting the above technical solution, when the sliding rod is slidable, the limiting block can abut against the inner wall of the guide cylinder, reducing the possibility of the sliding rod detaching from the guide cylinder.

[0022] Optionally, a weight sensor is installed inside the suspended platform, and the drive component is electrically connected to a control system. The control system is used to control the start and stop of the drive component, and the weight sensor is electrically connected to the control system.

[0023] By adopting the above technical solution, a weight sensor is installed inside the suspended basket to detect the weight of the object carried inside the basket and transmit the detected weight information to the control system. When the detected weight data exceeds the rated value, the control system controls the drive components to brake, thereby achieving overload protection.

[0024] Optionally, the suspended platform body is provided with an entrance, and a movable door is rotatably connected to the entrance. A locking component is provided inside the suspended platform body to lock the movable door.

[0025] By adopting the above technical solution, the entrance is set to allow personnel to enter the suspended platform body. The movable door is located at the entrance, and the entrance can be opened or closed by rotating the movable plate. After the movable door is rotated to close the entrance, the movable door can be locked by the locking device to keep the entrance closed.

[0026] Optionally, the suspension frame is also equipped with a fall arrestor, which is connected to a safety rope.

[0027] By adopting the above technical solution, when personnel are inside the suspended platform, the safety rope connected to the fall arrestor is tied to the personnel to improve their operational safety.

[0028] Optionally, a first distance sensor is provided at the top of the suspended basket body, and a second distance sensor is provided at the bottom of the suspended basket body, and both the first distance sensor and the second distance sensor are electrically connected to the control system.

[0029] By adopting the above technical solution, when the suspended platform body rises, the first distance sensor can monitor the distance between the plane above the suspended platform body and the suspended platform in real time, and transmit the monitored distance information to the control system; when the suspended platform body descends, the second distance sensor can monitor the distance between the plane below the suspended platform body and the suspended platform in real time, and transmit the monitored distance information to the control system; when the monitored distance information exceeds the preset value, the control system controls the drive component to brake, realizing the upper and lower limit emergency stop function to avoid injury.

[0030] In summary, this application includes at least one of the following beneficial effects:

[0031] 1. In this application, multiple hooks are provided on the suspended platform body. When the suspended platform rises to the entrance well opening and the hooks are close to the entrance well opening, the hooks are hooked onto the side wall of the entrance well opening to further limit the horizontal position of the suspended platform and reduce the possibility of the suspended platform shaking violently in the direction of personnel movement when personnel walk out of the suspended platform.

[0032] 2. This application installs a weight sensor inside the suspended basket, which can detect the weight of the object carried inside the suspended basket and transmit the detected weight information to the control system. When the detected weight data exceeds the rated value, the control system controls the drive component to brake, thereby achieving overload protection.

[0033] 3. This application provides a first distance sensor and a second distance sensor on the suspended platform body. When the suspended platform body rises, the first distance sensor can monitor the distance between the plane above the suspended platform body and the suspended platform in real time and transmit the monitored distance information to the control system. When the suspended platform body descends, the second distance sensor can monitor the distance between the plane below the suspended platform body and the suspended platform in real time and transmit the monitored distance information to the control system. When the monitored distance information exceeds a preset value, the control system controls the drive component to brake, realizing the upper and lower limit emergency stop function. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a lifting and transporting device for washing a cabin, according to Embodiment 1 of this application.

[0035] Figure 2 This is a schematic diagram of the hanger structure of Embodiment 1 of this application;

[0036] Figure 3 This is a schematic diagram of the suspended platform structure of Embodiment 1 of this application;

[0037] Figure 4 This is a schematic diagram of the winch structure displaying the emergency stop button according to Embodiment 1 of this application;

[0038] Figure 5 This is a schematic diagram of the suspended platform structure of Embodiment 2 of this application;

[0039] Figure 6 This is a cross-sectional structural diagram of the hook and hanger in Embodiment 2 of this application;

[0040] Explanation of reference numerals in the attached drawings: 1. Hanger; 11. Guide pulley; 12. Guide rope; 121. Guide channel; 13. Mounting bracket; 14. Base; 141. Plug-in hole; 15. Rescue hoist; 2. Winch; 21. Emergency stop button; 22. Emergency stop control rope; 23. First distance sensor; 24. Second distance sensor; 25. Slack rope protection device; 3. Traction rope; 4. Suspended basket body; 41. Guide cylinder; 42. Movable door; 43. 44. Locking pin; 45. Hanging lug; 46. Connecting rope; 47. Positioning magnetic block; 48. First locking block; 49. Weight sensor; 5. Hook and hanger; 51. Connecting part; 52. Hook and hanger part; 53. Slide rod; 531. Limiting block; 54. Hanging plate; 55. Protective pad; 6. Return spring; 7. Fall arrestor; 71. Safety rope; 8. Inlet wellhead; 9. Permanent magnet lifter; 10. Bottom wall of condensate oil tank. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] Example 1:

[0043] Embodiment 1 of this application provides a lifting and transporting device for washing cabins.

[0044] refer to Figure 1 and Figure 2 A lifting and transporting device for washing cabins includes a gantry 1 and a lifting mechanism. The gantry 1 includes a base 14 and a mounting bracket 13 fixed to the base 14. The base 14 has a insertion hole 141. When installing the gantry 1, the insertion hole 141 is fitted over the cabin entrance opening 8 to position the gantry 1. In this embodiment, the insertion hole 141 is specifically rectangular. A guide rope 12 is fixed to the top of the mounting bracket 13, and two guide ropes 12 are fixed at intervals.

[0045] refer to Figure 1 and Figure 2 Both guide ropes 12 extend into the condensate oil tank at the ends furthest from the mounting frame 13 and connect to the bottom wall 10 of the condensate oil tank. In this embodiment, the guide ropes 12 are specifically made of steel wire rope, and a permanent magnet lifter 9 is fixed to one end of each guide rope 12. The guide ropes 12 are connected to the bottom wall 10 of the condensate oil tank through the permanent magnet lifter 9. In other embodiments, an anode block can be fixed on the bottom wall 10 of the condensate oil tank, and one end of the guide rope 12 can be fixedly connected to the anode block.

[0046] refer to Figure 1 and Figure 2 The lifting mechanism includes a drive unit, a traction rope 3, and a suspended platform. A guide pulley 11 is rotatably connected to the top of the mounting frame 13. In this embodiment, the drive unit is specifically configured as a winch 2. One end of the traction rope 3 is wound around the winch 2, and the other end of the traction rope 3 passes over the guide pulley 11 and is connected to the suspended platform. A guide channel 121 is formed between the two guide ropes 12. The suspended platform is located within the guide channel 121, and the side wall of the suspended platform abuts against the guide ropes 12. When the winch 2 is started, causing the traction rope 3 to move the lifting frame 1, the guide channel 121 provides guidance for the suspended platform to improve the stability of the platform's movement.

[0047] refer to Figure 3The suspended platform includes a platform body 4 and hooks 5 mounted on the platform body 4. In this embodiment, multiple hanging ears 45 are fixed to the top of the platform body 4, and a connecting rope 46 is fixed to each hanging ear 45. The end of each connecting rope 46 away from the hanging ear 45 is fixedly connected to the traction rope 3, thereby realizing the connection between the traction rope 3 and the platform. In this embodiment, the hook 5 is configured as a hook; the hook includes a connecting part 51 and a hooking part 52 connected to each other, and the end of the connecting part 51 away from the hooking part 52 is hinged to the platform body 4. In this embodiment, the platform body 4 is specifically configured as a hollow rectangular frame, and the axis of the platform body 4 is parallel to the guide rope 12; two hooks are arranged opposite each other, and the hooks are located near the bottom of the platform body 4. There are four hanging ears 45, and the spacing between two adjacent hanging ears 45 is equal.

[0048] refer to Figure 3 A positioning magnetic block 47 is also provided below the hook, and the positioning magnetic block 47 is fixed to the basket body 4. In this embodiment, the hook is made of magnetic metal material, and the positioning magnetic block 47 is made of magnet. The positioning magnetic block 47 attracts the hook part 52 of the hook, so that the hook is not easy to shake when the basket moves.

[0049] refer to Figure 3 The suspended platform body 4 also has an entrance, and a movable door 42 is provided at the entrance. In this embodiment, the movable door 42 is connected to the outer wall of the suspended platform body 4 by a hinge, and the movable door 42 is located above the hook. Rotating the movable door 42 can open or close the entrance, facilitating personnel to enter and exit the suspended platform body 4. A first locking block 48 is fixed on the outer wall of the suspended platform body 4, and a second locking block 43 is fixed on the side wall of the movable door 42. The suspended platform body 4 is also provided with a locking element, which in this embodiment is specifically set as a locking pin 44. When the movable door 42 closes the entrance, the first locking block 48 and the second locking block 43 are arranged opposite each other in the vertical direction, and one end of the locking pin passes through the first locking block 48 and the second locking block 43 in sequence, thereby locking the position of the movable door 42 and keeping the entrance closed.

[0050] refer to Figure 2 and Figure 3A plate-type weight sensor 49 is fixed on the bottom wall of the suspended platform body 4. The winch 2 is electrically connected to a control system (not shown in the figure), and the weight sensor 49 is also electrically connected to the control system. When the weight sensor 49 detects the weight of the object inside the suspended platform and transmits the weight information to the control system, if the detected weight exceeds the rated load, the control system controls the winch 2 to brake, thus achieving overload protection. A first distance sensor 23 is fixed on the top of the suspended platform body 4, and a second distance sensor 24 is fixed on the bottom of the suspended platform body 4. Both the first distance sensor 23 and the second distance sensor 24 are electrically connected to the control system. When the winch 2 rises or falls beyond the preset upper or lower position, the control system controls the winch 2 to stop, thus achieving upper and lower limit protection.

[0051] refer to Figure 4 The winch 2 includes an emergency stop button 21, which can be used to control the winch 2 to stop in an emergency. An emergency stop control rope 22 is connected to the emergency stop button 21, with one end of the rope extending away from the winch 2 to below the entrance shaft 8. In an emergency, personnel inside the gondola can pull the emergency stop control rope 22 to brake the winch 2. The winch 2 also includes a slack rope protection device, which is also electrically connected to the control system. When the hoisted person or object contacts the support surface, after the traction rope 3 continues to descend a short distance, the slack rope protection device detects a certain degree of slack in the traction rope 3 and transmits this information to the control system. The control system then brakes the winch 2, automatically stopping the descent of the traction rope 3 to prevent injury to people or objects.

[0052] refer to Figure 2 The top of the mounting frame 13 is also fixed with a fall arrestor 7 and a rescue hoist 15. One end of the fall arrestor 7 is connected to a safety rope 71. When personnel enter the suspended basket body 4, the end of the safety rope 71 away from the fall arrestor 7 is tied to the personnel to improve the safety of personnel during operation.

[0053] The implementation principle of a lifting and transporting device for tank cleaning according to an embodiment of this application is as follows: After the basket is hoisted above the entrance well 8 of the condensate oil tank, the winch 2 is started to drive the traction rope 3 downward, and the basket descends with the movement of the traction rope 3. When the hook moves into the entrance well 8 with the descent of the basket, the winch 2 is stopped. The hook is rotated so that the hook part 52 hooks onto the side wall of the entrance well 8. Then the movable door 42 is rotated to open the entrance, and personnel enter the basket body 4. Subsequently, the entrance is rotated to lock the movable door 42 by locking pin 44. The winch 2 is started again to lower the basket and transport personnel into the condensate oil tank. The winch 2 is then stopped again to facilitate personnel to inspect or clean the inside of the condensate oil tank. After the inspection or cleaning is completed, the winch 2 is started again to drive the traction rope 3 upward, causing the basket to rise. When the hook moves into the entrance well 8 with the rise of the basket body 4, the winch 2 is stopped again. The hook is rotated a second time, causing the hook portion 52 to engage with the side wall of the entrance well 8, thus limiting the horizontal position of the suspended platform. The locking pin 44 can then be removed, opening the entrance and allowing personnel to exit the suspended platform body 4.

[0054] Example 2:

[0055] Embodiment 2 of this application provides a lifting and transporting device for washing cabins.

[0056] refer to Figure 5 and Figure 6 The difference between Embodiment 2 and Embodiment 1 is that in this embodiment, the basket body 4 is specifically configured as a hollow cylindrical frame, and the hook and hanger 5 includes a slide rod 53 and a hanging plate 54 rotatably connected to one end of the slide rod 53. A protective pad 55 is fixed on the end face of the hanging plate 54 near the slide rod 53.

[0057] refer to Figure 5 and Figure 6 A guide cylinder 41 is fixed inside the suspended basket body 4, with one end of the guide cylinder 41 extending out of the suspended basket body 4 and located outside the suspended basket body 4. One end of a sliding rod 53 passes through the guide cylinder 41 and is slidably connected to the guide cylinder 41. A limit block 531 is fixed to the end of the sliding rod 53 inside the guide cylinder 41, and the cross-sectional area of ​​the limit block 531 is larger than the cross-sectional area of ​​the sliding rod 53. A force-applying component is also provided inside the guide cylinder 41. In this embodiment, the force-applying component is specifically set as a return spring 6, with one end of the return spring 6 fixed to the inner side wall of the guide cylinder 41 and the other end fixed to the limit block 531.

[0058] In this embodiment, two hooks 5 are provided, and the two hooks 5 are arranged opposite to each other; correspondingly, two guide cylinders 41 and two force-applying components are provided.

[0059] When the hoist rises to the entrance opening 8 and the hook slides out of the entrance opening 8, the sliding rod 53 slides so that one end of the sliding rod 53 abuts against the top of the entrance opening 8; then the hanging plate 54 is rotated towards the entrance opening 8 so that the side wall of the hanging plate 54 abuts against the outer wall of the entrance opening 8; when personnel walk out of the hoist body 4, the hanging plate 54 abuts against the side wall of the entrance opening 8, hindering the movement of the hoist body 4; when the hook 5 is not needed, the sliding rod 53 is slid so that most of the rod section of the sliding rod 53 is retracted into the hoist body 4, so as not to obstruct the hoist from entering or exiting the entrance opening 8.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifting carriage for use in cleaning a tank, characterized in that include: A gantry (1) is provided with a guide pulley (11) and multiple guide ropes (12). The end of the guide rope (12) away from the gantry (1) is used to connect to the bottom wall (10) of the condensate tank, and a guide channel (121) is formed between the multiple guide ropes (12). The lifting mechanism includes a drive unit, a traction rope (3) and a basket. One end of the traction rope (3) is connected to the drive unit, and the other end passes around the guide pulley (11) and is connected to the basket. The basket is slidably disposed in the guide channel (121). The drive unit is used to drive the traction rope (3) to move. The suspended platform includes a platform body (4) and a plurality of hooks (5) fixed on the platform body (4), the hooks (5) being spaced apart around the perimeter of the suspended platform.

2. A lifting and transporting device for washing cabins according to claim 1, characterized in that, The hook (5) includes a hook that is rotatably connected to the basket body (4).

3. A lifting carriage for cleaning a tank as defined in claim 1, wherein The hook (5) includes a slide rod (53) and a hanging plate (54). One end of the slide rod (53) passes through and is slidably connected to the side wall of the basket body (4), and the other end of the slide rod (53) is rotatably connected to the hanging plate (54).

4. A lifting carriage for cleaning a cargo tank according to claim 3, characterized in that The suspended basket body (4) is provided with a plurality of guide cylinders (41), and one end of the guide cylinder (41) is located outside the suspended basket body (4). The guide cylinder (41) and the slide rod (53) are provided in a one-to-one correspondence. The slide rod (53) is located at one end of the suspended basket and passes through the guide cylinder and is slidably connected to the guide cylinder (41). The guide cylinder (41) is provided with a force-applying component, which is used to drive the end of the slide rod (53) located outside the basket body (4) to move towards the basket.

5. A lifting carriage for cleaning a tank as claimed in claim 4, wherein, The force-applying component includes a return spring (6), one end of which is fixed to the inner wall of the guide cylinder (41), and the other end is fixedly connected to one end of the slide rod (53) located inside the basket body (4).

6. A lifting and transporting device for washing cabins according to claim 5, characterized in that, The sliding rod (53) is connected to a limiting block (531) at one end inside the basket body (4), and the limiting block (531) is used to abut against the inner wall of the guide cylinder (41).

7. A lifting carriage for cleaning a cargo tank as defined in claim 3, characterized in that A weight sensor (49) is installed inside the suspended basket body (4). The drive component is electrically connected to a control system. The control system is used to control the start and stop of the drive component. The weight sensor (49) is electrically connected to the control system.

8. A lifting and transporting device for washing cabins according to claim 1, characterized in that, An entrance is provided on the suspended basket body (4), and a movable door (42) is rotatably connected to the entrance. A locking element is provided inside the suspended basket body (4), and the locking element is used to lock the movable door (42).

9. A lifting carriage for cleaning a cargo tank as defined in claim 1, characterized in that The hanger (1) is also equipped with a fall arrestor (7), and the fall arrestor (7) is connected to a safety rope (71).

10. A lifting carriage for cleaning a cargo tank as defined in claim 7, characterized in that The top of the suspended basket body (4) is provided with a first distance sensor (23), and the bottom of the suspended basket body (4) is provided with a second distance sensor (24). Both the first distance sensor (23) and the second distance sensor (24) are electrically connected to the control system.

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