A liquid cargo ship residual liquid collection device

By designing automated liquid cargo ship residual liquid collection equipment, the problems of high labor intensity and easy clogging of pipes in liquid cargo ship residual liquid cleaning have been solved, achieving automated and continuous cleaning results and improving cleaning efficiency and effectiveness.

CN224427756UActive Publication Date: 2026-06-30ZHOUSHAN YONGXIANG SHIPPING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHOUSHAN YONGXIANG SHIPPING CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The cleaning of residual liquid from existing liquid cargo ships is labor-intensive and inefficient, and the existing conduit structure is simple and prone to clogging, affecting the cleaning effect.

Method used

A liquid cargo ship residual liquid collection device was designed, which includes a tank cleaning pump, a composite collection pipe head, a transition pipe, a flexible folded pipe, and a multi-functional filter device. It utilizes a power component and a meshing transmission device to achieve automatic filtration and unclogging, and combines a lifting component to achieve automatic lifting to meet cleaning needs.

Benefits of technology

It enables automated and continuous cleaning of residual liquid from liquid cargo ships, reducing labor intensity, improving cleaning efficiency, and ensuring cleaning effect through a multi-functional filtration device, thus avoiding pipe blockage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of liquid cargo ship technology and discloses a liquid cargo ship residual liquid collection device, including a tank cleaning pump and a composite collection pipe head. A transition conduit is installed between the input end of the tank cleaning pump and the composite collection pipe head, and an external support is fitted on the outside of the tank cleaning pump. The composite collection pipe head includes a collection pipe, an elastic folding pipe, and a support pipe. This utility model uses a semi-enclosed baffle, a filter frame plate, a fan-shaped filter screen, a support shaft, an auxiliary partition, and several brush strips to form a multi-functional filtration device. After being used in conjunction with a power component, gears, and a gear ring to form a meshing transmission device, in addition to automatically filtering and pumping the residual liquid in the ship's storage space through the flow channel formed by the transition conduit, collection pipe, elastic folding pipe, and support pipe using the fan-shaped filter screen, the filter frame plate and the fan-shaped filter screen can automatically clean and unblock the filter strips under the meshing transmission of the power component through the gear ring and gears.
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Description

Technical Field

[0001] This utility model relates to the field of liquid cargo ship technology, specifically to a liquid cargo ship residual liquid collection device. Background Technology

[0002] Liquid cargo ships are generally ships specifically designed to carry liquid cargo. Based on the different types of cargo they carry, liquid cargo ships can be divided into three categories: oil tankers, liquefied gas carriers, and liquid chemical tankers. Among them, oil tankers are specialized ships that carry bulk crude oil and refined oil products, and they are generally quite large in tonnage. Therefore, after most of the liquid cargo carried by a liquid cargo ship is unloaded, due to the limitations of its own hull structure, a certain amount of residual liquid will remain. To address this issue, current technologies mostly rely on manual cleaning. While this achieves the goal, it is labor-intensive and inefficient.

[0003] In recent years, with the continuous development of related technologies, some technical solutions for cleaning residual liquids using pump suction equipment have been disclosed in the existing technology, such as tank cleaning pumps. These pumps can provide pumping conditions for removing residual liquids from cargo oil tanks and pumping out air and sewage, greatly reducing the labor intensity of crew members. However, the conduits currently used with these pumps have a relatively simple structure. Although they can be used with existing filters to prevent clogging of residual liquids containing impurities, blockages are still likely to occur, and their practicality remains quite limited. Utility Model Content

[0004] This invention provides a liquid cargo ship residual liquid collection device, which solves the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a liquid cargo ship residual liquid collection device, including a tank sweeping pump and a composite collection pipe head. A transition conduit is installed between the input end of the tank sweeping pump and the composite collection pipe head, and an external support is fitted on the outside of the tank sweeping pump. The composite collection pipe head includes a collection pipe, an elastic folding pipe, and a support pipe. The elastic folding pipe is installed between the collection pipe and the support pipe, and the internal space of the collection pipe communicates with the internal space of the transition conduit. An adjustment component is provided at the bottom of the collection pipe. The adjustment component includes a semi-enclosed baffle and a filter frame plate. The inner side of the middle of the semi-enclosed baffle is connected by... The bearing assembly is fitted with a support shaft fixed to the top surface of the middle part of the filter frame plate. The interior of the semi-enclosed baffle and the interior of the filter frame plate are provided with fan-shaped grooves. The bottom surface of the semi-enclosed baffle is fixed with an auxiliary partition that fits and connects to the top surface of the filter frame plate. The fan-shaped grooves inside the filter frame plate are nested with fan-shaped filter screens. A power component is provided on the outside of the collection pipe. The output end of the power component is connected to a gear, and the gear meshes with a gear ring fitted on the outside of the filter frame plate, so that the two fan-shaped grooves can be aligned or misaligned and closed during the relative rotation adjustment of the filter frame plate and the semi-enclosed baffle.

[0006] Preferably, the power assembly includes a stepper motor, a controller component, and a protective cover. The surface of the protective cover is fixed to the surface of the collecting pipe. The controller component and the stepper motor are both housed inside the protective cover. The output end of the stepper motor passes through the bottom structure of the protective cover and is connected to the middle of the gear for transmission.

[0007] Preferably, the controller component includes a controller, a battery module, and a wireless communication module, and the controller is electrically connected to the stepper motor via a wire. The stepper motor and the protective cover are fitted with a first waterproof sealing ring.

[0008] Preferably, the semi-enclosed baffle is located above the filter frame plate, and there is a clearance space between the semi-enclosed baffle and the filter frame plate. Several brush strips are fixed on the bottom surface of one side of the semi-enclosed baffle. The bottom ends of the brush strips can fit into the corresponding filter gaps in the fan-shaped filter screen during the relative rotation adjustment of the filter frame plate and the semi-enclosed baffle, so as to clean the fan-shaped filter screen.

[0009] Preferably, the two ends of the elastic folding tube are fixedly connected to one end of the support tube and the top of the collecting tube, respectively, and the support tube and the collecting tube are spatially connected. The elastic folding tube has the structural performance of reciprocating expansion and contraction deformation.

[0010] Preferably, the top of the outer support is fitted with a lifting assembly for lifting and lowering the collection pipe. The lifting assembly includes a protective cylinder, an electric push rod, and a linkage plate. The surface of the protective cylinder is fixed to the inner wall of the top of the outer support. The electric push rod is fitted inside the protective cylinder, and the output end of the electric push rod passes through the bottom structure of the protective cylinder and is connected to one side of the linkage plate. The other end of the linkage plate is installed on the top of one side of the collection pipe.

[0011] Preferably, the output end of the electric push rod is fitted with a second waterproof sealing ring at the junction of the protective cylinder bottom structure, and the electric push rod is electrically connected to the controller inside the controller component via a wire.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model comprises a multi-functional filtration device consisting of a semi-enclosed baffle, a filter frame plate, a fan-shaped filter screen, a support shaft, an auxiliary partition, and several brush strips. When used in conjunction with a power unit, gears, and a gear ring to form a meshing transmission device, it can automatically filter and pump residual liquid in the ship's storage space by using the fan-shaped filter screen to drive the cleaning pump through the flow channel formed by the transition pipe, collection pipe, elastic folding pipe, and support pipe. Under the meshing transmission of the power unit through the gear ring and gears, the filter frame plate and the fan-shaped filter screen can work with several brush strips to automatically clean and unblock, ensuring the continuous filtration effect of the entire device.

[0014] 2. The multifunctional filtration device of this utility model, under the transmission of the meshing transmission device, can also make its internal semi-enclosed baffle, filter frame plate and fan-shaped filter screen overlap, thereby meeting the direct pumping requirements of the large space at the bottom of the collection pipe.

[0015] 3. This utility model is equipped with an automatic lifting device that combines a lifting component and an external support. This device can automatically lift and lower the collection pipe to shorten the distance between the bottom end of the collection pipe and the residual liquid, thereby meeting the requirements for thorough cleaning. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the collection tube structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the collection tube structure of this utility model;

[0019] Figure 4 This is a bottom view of the filter frame plate of this utility model.

[0020] Figure 5 This is a top view of the semi-enclosed baffle structure of this utility model.

[0021] In the diagram: 1. Sweeping pump; 2. Transition conduit; 3. Collection pipe; 4. Flexible folded pipe; 5. Support pipe; 6. Semi-enclosed baffle; 7. Support shaft; 8. Filter frame plate; 9. Fan-shaped filter screen; 10. Auxiliary baffle; 11. Gear ring; 12. Gear; 13. Brush strip; 14. Power assembly; 141. Stepper motor; 142. Controller components; 143. Protective cover; 15. External bracket; 16. Lifting assembly; 161. Protective cylinder; 162. Electric push rod; 163. Linkage plate. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5A liquid cargo ship residual liquid collection device includes a tank sweeping pump 1 and a composite collection pipe head. A transition conduit 2 is installed between the input end of the tank sweeping pump 1 and the composite collection pipe head, and an outer support 15 is fitted on the outside of the tank sweeping pump 1. The composite collection pipe head includes a collection pipe 3, an elastic folding pipe 4, and a support pipe 5. The elastic folding pipe 4 is installed between the collection pipe 3 and the support pipe 5, and the internal space of the collection pipe 3 communicates with the internal space of the transition conduit 2. An adjustment component is provided at the bottom of the collection pipe 3. The adjustment component includes a semi-enclosed baffle 6 and a filter frame plate 8. The inner side of the middle part of the semi-enclosed baffle 6 is fitted with a filter frame plate fixed by a bearing. The support shaft 7 on the top surface of the middle part of the plate 8, the interior of the semi-enclosed baffle 6 and the interior of the filter frame plate 8 are provided with fan-shaped grooves. The bottom surface of the semi-enclosed baffle 6 is fixed with an auxiliary partition 10 that fits and connects with the top surface of the filter frame plate 8. The fan-shaped groove inside the filter frame plate 8 is nested with a fan-shaped filter screen 9. The outside of the collection pipe 3 is provided with a power component 14. The output end of the power component 14 is connected to a gear 12, and the gear 12 meshes with a gear ring 11 fitted on the outside of the filter frame plate 8, so that the two fan-shaped grooves can be aligned or misaligned and closed during the relative rotation adjustment process of the filter frame plate 8 and the semi-enclosed baffle 6.

[0024] The power assembly 14 includes a stepper motor 141, a controller component 142, and a protective cover 143. The surface of the protective cover 143 is fixed to the surface of the collecting tube 3. The controller component 142 and the stepper motor 141 are both housed inside the protective cover 143. The output end of the stepper motor 141 passes through the bottom structure of the protective cover 143 and is connected to the middle of the gear 12 for transmission, thereby meeting the power requirements for the automatic rotation of the gear 12 and achieving automated operation. The controller component 142 includes a controller, a battery module, and a wireless communication module. The controller is electrically connected to the stepper motor 141 through a wire for remote control during subsequent operation. A waterproof first sealing ring is nested at the fitting point between the stepper motor 141 and the protective cover 143 to ensure the reliability of continuous use of the power assembly 14.

[0025] The semi-enclosed baffle 6 is located above the filter frame plate 8, and there is a clearance space between the semi-enclosed baffle 6 and the filter frame plate 8. Several brush strips 13 are fixed on the bottom surface of one side of the semi-enclosed baffle 6. During the relative rotation adjustment of the filter frame plate 8 and the semi-enclosed baffle 6, the bottom end of the brush strip 13 can fit into the corresponding filter gap in the fan-shaped filter screen 9 to clean the fan-shaped filter screen 9, thereby ensuring the continuous and efficient filtration effect of the fan-shaped filter screen 9.

[0026] When in use, the sweeping pump 1 automatically pumps the remaining residual liquid in the storage space of the ship's hold through the flow channel formed by the transition conduit 2, the collection pipe 3, the elastic folding pipe 4 and the support pipe 5. During the pumping process, the initially discharged residual liquid will be filtered by the fan-shaped filter screen 9, so it is relatively clean and can be recycled and reused as needed.

[0027] When the pumped flow rate decreases significantly, it indicates that the fan-shaped filter 9 may be clogged. The stepper motor 141 is remotely started via the controller component 142. The output of the stepper motor 141 drives the gear 12 to rotate synchronously. The meshing transmission between the gear 12 and the gear ring 11 causes the assembly formed by the filter frame plate 8 and the fan-shaped filter 9 to rotate 180 degrees periodically at a fixed distance. Then, the multiple brush strips 13 set at the bottom of the semi-enclosed baffle 6 clean the fan-shaped filter 9 to eliminate the clogging problem. After cleaning for a certain period of time, the stepper motor 141 is turned off after the filter frame plate 8 and the fan-shaped filter 9 are in the reset position, and the pumping can be continued using the whole device.

[0028] Please see Figures 1-4 The two ends of the elastic folding tube 4 are fixedly connected to one end of the support tube 5 and the top of the collection tube 3, respectively, and the support tube 5 and the collection tube 3 are spatially connected. The elastic folding tube 4 has the structural performance of reciprocating expansion and contraction deformation. The top of the outer bracket 15 is fitted with a lifting component 16 for lifting and lowering the collection tube 3. The lifting component 16 includes a protective cylinder 161, an electric push rod 162 and a linkage plate 163. The surface of the protective cylinder 161 is fixed to the inner wall of the top of the outer bracket 15. The electric push rod 162 is fitted inside the protective cylinder 161, and the output end of the electric push rod 162 passes through the bottom structure of the protective cylinder 161 and is connected to one side of the linkage plate 163. The other end of the linkage plate 163 is installed on the top of one side of the collection tube 3. A second waterproof sealing ring is nested at the fitting point between the output end of the electric push rod 162 and the bottom structure of the protective cylinder 161 to ensure the sealing effect of the connection. The electric push rod 162 is electrically connected to the controller inside the controller component 142 through a wire.

[0029] In use, for the final stage of residual liquid with many impurities that cannot be filtered, the stepper motor 141 can be remotely started by the controller component 142. The output end of the stepper motor 141 drives the gear 12 to rotate synchronously. By utilizing the meshing transmission between the gear 12 and the gear ring 11, the combination formed by the filter frame plate 8 and the fan-shaped filter screen 9 rotates 180 degrees at a fixed distance, thereby aligning the filter frame plate 8 with the semi-enclosed baffle 6, and making sufficient clearance at the bottom of the collection pipe 3. The electric push rod 162 is then activated, and the output end of the electric push rod 162 drives the linkage plate 163 and the collection pipe 3 to move downward, shortening the distance between the bottom port of the collection pipe 3 and the residual liquid. Then, the tank cleaning pump 1 powerfully pumps the last remaining residual liquid in the storage space of the ship's hold through the flow channel formed by the transition conduit 2, the collection pipe 3, the elastic folding pipe 4, and the support pipe 5, achieving a relatively complete cleaning effect.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liquid cargo ship residual liquid collecting device, comprising a stripping pump (1), a composite collecting pipe head, a transition conduit (2) is installed between the input end of the stripping pump (1) and the composite collecting pipe head, and an outer support (15) is sleeved outside the stripping pump (1), characterized in that: The composite collection tube head includes a collection tube (3), an elastic folded tube (4), and a support tube (5). The elastic folded tube (4) is installed between the collection tube (3) and the support tube (5) and makes the internal space of the collection tube (3) communicate with the internal space of the transition conduit (2). An adjustment component is provided at the bottom of the collection tube (3). The adjustment component includes a semi-enclosed baffle (6) and a filter frame plate (8). The inner side of the middle part of the semi-enclosed baffle (6) is fitted with a support shaft (7) fixed to the top surface of the middle part of the filter frame plate (8) through a bearing. Fan-shaped grooves are opened inside the semi-enclosed baffle (6) and the filter frame plate (8). An auxiliary partition plate (10) is fixed to the bottom surface of the semi-enclosed baffle (6) and is in close contact with the top surface of the filter frame plate (8). A fan-shaped filter screen (9) is nested in the fan-shaped groove inside the filter frame plate (8). A power component (14) is provided on the outside of the collection tube (3). A gear (12) is connected to the output end of the power component (14). The gear (12) meshes with a gear ring (11) fitted on the outside of the filter frame plate (8), so that the two fan-shaped grooves can be aligned or misaligned and closed during the relative rotation adjustment process of the filter frame plate (8) and the semi-enclosed baffle (6).

2. A liquid cargo ship residual collection apparatus according to claim 1, characterised in that: The power assembly (14) includes a stepper motor (141), a controller component (142), and a protective cover (143). The surface of the protective cover (143) is fixed to the surface of the collecting pipe (3). The controller component (142) and the stepper motor (141) are both fitted inside the protective cover (143). The output end of the stepper motor (141) passes through the bottom structure of the protective cover (143) and is connected to the middle of the gear (12) for transmission.

3. The liquid cargo ship residual liquid collection device according to claim 2, characterized in that: The controller component (142) includes a controller, a battery module and a wireless communication module, and the controller is electrically connected to the stepper motor (141) via a wire. The stepper motor (141) and the protective cover (143) are fitted with a first waterproof sealing ring.

4. The liquid cargo ship residual liquid collection device according to claim 1, characterized in that: The semi-enclosed baffle (6) is located above the filter frame plate (8), and there is a clearance space between the semi-enclosed baffle (6) and the filter frame plate (8). Several brush strips (13) are fixed on the bottom surface of one side of the semi-enclosed baffle (6). The bottom end of the brush strip (13) can fit into the corresponding filter gap in the fan-shaped filter screen (9) during the relative rotation adjustment of the filter frame plate (8) and the semi-enclosed baffle (6) to clean the fan-shaped filter screen (9).

5. A liquid cargo ship residual liquid collection device according to claim 1, characterized in that: The two ends of the elastic folding tube (4) are fixedly connected to one end of the support tube (5) and the top of the collection tube (3) respectively, and the support tube (5) and the collection tube (3) are spatially connected. The elastic folding tube (4) has the structural performance of reciprocating expansion and contraction deformation.

6. The liquid cargo ship residual liquid collection device according to claim 1, characterized in that: The top of the outer support (15) is fitted with a lifting assembly (16) for lifting and lowering the collection tube (3). The lifting assembly (16) includes a protective cylinder (161), an electric push rod (162), and a linkage plate (163). The surface of the protective cylinder (161) is fixed to the inner wall of the top of the outer support (15). The electric push rod (162) is fitted inside the protective cylinder (161), and the output end of the electric push rod (162) passes through the bottom structure of the protective cylinder (161) and is connected to one side of the linkage plate (163). The other end of the linkage plate (163) is installed on the top of one side of the collection tube (3).

7. A liquid cargo ship residual liquid collection device according to claim 6, characterized in that: The output end of the electric push rod (162) is fitted with a second waterproof sealing ring at the bottom structure of the protective cylinder (161). The electric push rod (162) is electrically connected to the controller inside the controller component (142) via a wire.