Modularized arrangement structure of equipment between oil separators of ship
By using a modular integrated layout structure and a forced conveying mechanism, the problem of dispersed equipment layout between oil separators is solved, enabling rapid equipment positioning, vibration reduction, and anti-clogging, thereby improving the efficiency of shipbuilding and maintenance and ensuring the stable operation of the oil separation system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU YANGZI MITSUI SHIPBUILDING CO LTD
- Filing Date
- 2026-03-25
- Publication Date
- 2026-05-08
AI Technical Summary
The existing ship oil separator room equipment is scattered and lacks an integrated modular base, making installation and positioning cumbersome. Vibration is transmitted to the hull, the slag discharge pipeline is prone to blockage, and disassembly and cleaning are inconvenient, affecting operational stability and maintenance efficiency.
The modular integrated layout structure includes an L-shaped equipment base and rubber pad for vibration isolation, a servo motor-driven forced conveying mechanism, and integrates a centrifugal oil separator, heater, and slag discharge pipeline to achieve rapid equipment positioning and vibration isolation. The servo motor and screw conveyor also eliminate the risk of blockage.
It improves equipment installation efficiency and space utilization, ensures equipment operation stability, reduces noise, avoids pipeline blockage, simplifies maintenance, adapts to complex navigation conditions, and ensures the continuity and reliability of the oil separation system.
Smart Images

Figure CN121990107A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of shipbuilding, and specifically to a modular layout structure for equipment in a ship's oil separator room. Background Technology
[0002] Marine oil separators are core oil purification devices that ensure the normal operation of marine power systems. The layout of their supporting equipment directly determines the operational stability and maintenance efficiency of the oil separator system. Currently, existing equipment layout schemes for marine oil separators generally have the following core problems: First, the equipment is scattered and lacks an integrated modular base, making installation and positioning cumbersome and inconsistent with the trend of modular ship construction. This results in low utilization of engine room space and significant difficulties in later upgrades and maintenance. Second, the oil separator is rigidly installed, and its operating vibration is directly transmitted to the hull, which can easily lead to pipeline loosening, seal failure, and component fatigue damage, while also generating significant engine room noise. Third, the slag discharge pipeline relies on gravity flow, and high-viscosity oil sludge is very easy to accumulate and clog in the pipeline, especially under ship rolling conditions, where the risk of blockage is even higher. After a failure, the machine must be shut down for cleaning, which seriously affects the normal operation of the ship. Fourth, the slag discharge pipeline is mostly connected by welding or flanges, making disassembly and cleaning extremely inconvenient and resulting in low operation and maintenance efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide a modular layout structure for equipment in a ship's oil separator room, so as to solve the above-mentioned defects caused by the prior art.
[0004] A modular layout structure for a ship's oil separator includes an oil sludge tank, an oil inlet pipe, and a sludge discharge pipe. An L-shaped equipment base is installed directly above the oil sludge tank. Rubber pads are rectangularly distributed at the top of the L-shaped equipment base. The bottom end of a centrifugal oil separator is attached to the outer side of the rubber pads. An oil outlet pipe with a valve is connected to one side of the centrifugal oil separator. The oil inlet pipe is located at the input end of an oil separator heater. A pressure gauge is installed on one side of the oil separator heater.
[0005] Preferably, the first slag discharge pipe, servo motor, drive shaft, second slag discharge pipe, external threaded joint, internal threaded pipe joint, crushing blades, and spiral conveying rod constitute a conveying mechanism. The first slag discharge pipe is located at the bottom end of the centrifugal oil separator. A servo motor is located on one side of the centrifugal oil separator. The output end of the servo motor is connected to the drive shaft. The first slag discharge pipe is connected through the outer side of the drive shaft. External threaded joints are provided on both the upper and lower sides of the second slag discharge pipe. Crushing blades are arranged at equal intervals on the outer side of the drive shaft. A spiral conveying rod is connected to the bottom end of the drive shaft. The spiral conveying rod is located inside the second slag discharge pipe.
[0006] Preferably, the slag discharge pipe is connected to the slag discharge port of the centrifugal oil separator through an internally threaded pipe joint at its top.
[0007] Preferably, the first slag discharge pipe is connected to the second slag discharge pipe via an internally threaded pipe joint at its bottom end and an externally threaded pipe joint at its top end.
[0008] Preferably, the outer side of the slag discharge pipe is connected to a drive shaft via a bearing, and the outer side of the drive shaft is connected to the output end of a servo motor.
[0009] Preferably, the servo motor is connected to the top of the screw conveyor via a drive shaft connected to its output end.
[0010] Preferably, the oil separator heater is connected to the input end of the centrifugal oil separator via an externally connected oil outlet pipe with a valve.
[0011] Compared with the prior art, the present invention has the following advantages: 1. The device significantly improves shipbuilding and maintenance efficiency by achieving fully modular integrated layout of equipment in the oil separator room. The L-shaped equipment base enables integrated pre-installation of core equipment such as centrifugal oil separators, oil separator heaters, and slag conveying mechanisms, replacing the previous technology of separate installation of each piece of equipment. The pre-installation and commissioning of equipment modules can be completed before the ship's final assembly, which greatly shortens the equipment installation cycle during the shipbuilding stage and improves the equipment installation positioning accuracy. At the same time, the integrated modular structure greatly optimizes the space utilization of the oil separator room, which facilitates the overall upgrading, replacement and maintenance of equipment in the later stage, and is fully adapted to the industry development trend of modular shipbuilding.
[0012] 2. By setting up a forced conveying mechanism consisting of a servo motor, drive shaft, crushing blades, and spiral conveyor, the high-speed rotating crushing blades first shear and crush the discharged oil sludge and large solid particles, eliminating the risk of large particles clogging the pipeline. Then, the spiral conveyor inside the sludge discharge pipe forcibly pushes the crushed high-viscosity oil sludge axially, replacing the traditional gravity-flow sludge discharge mode. This completely solves the problems of oil sludge sticking to the pipeline walls, accumulating, and bridging due to its high viscosity and poor fluidity. At the same time, it can fully adapt to the complex working conditions of ship tilting and rolling during navigation, without the need to stop the machine to disassemble and clean the pipeline, ensuring the continuity of oil purification operations and greatly improving the operational reliability of the oil separation system. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram of point A in the middle; Figure 3 This is a schematic diagram of the connection structure between the external threaded connector and the internal threaded pipe connector in this invention; Figure 4 This is a schematic diagram of the structure of the slag discharge pipe in this invention; Figure 5 This is a schematic diagram of the internal structure of the slag discharge pipe in this invention.
[0014] in: 1. Oil sludge compartment; 2. L-shaped equipment base; 3. Rubber pad; 4. Centrifugal oil separator; 5. Oil inlet pipe; 6. Oil separator heater; 7. Oil outlet pipe with valve; 8. Pressure gauge; 9. Sludge discharge pipe one; 10. Servo motor; 11. Drive shaft; 12. Sludge discharge pipe two; 13. External threaded connector; 14. Internal threaded pipe connector; 15. Crushing blade; 16. Screw conveyor rod. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0016] like Figures 1 to 5 As shown, a modular layout structure for equipment in a ship's oil separator includes an oil sludge tank 1, an oil inlet pipe 5, and a sludge discharge pipe 9. An L-shaped equipment base 2 is installed directly above the oil sludge tank 1. Rubber pads 3 are rectangularly distributed at the top of the L-shaped equipment base 2. The bottom end of a centrifugal oil separator 4 is attached to the outside of the rubber pads 3. An oil outlet pipe 7 with a valve is connected to one side of the centrifugal oil separator 4. The oil inlet pipe 5 is located at the input end of an oil separator heater 6. A pressure gauge 8 is installed on one side of the oil separator heater 6.
[0017] In this embodiment, the slag discharge pipe 9, servo motor 10, drive shaft 11, slag discharge pipe 12, external threaded connector 13, internal threaded pipe connector 14, crushing blade 15, and spiral conveying rod 16 constitute a conveying mechanism. The slag discharge pipe 9 is located at the bottom end of the centrifugal oil separator 4. The servo motor 10 is located on one side of the centrifugal oil separator 4. The output end of the servo motor 10 is connected to the drive shaft 11. The slag discharge pipe 9 is connected through the outer side of the drive shaft 11. External threaded connectors 13 are provided on both the upper and lower sides of the slag discharge pipe 12. Crushing blades 15 are evenly spaced on the outer side of the drive shaft 11. The bottom end of the drive shaft 11 is connected to the spiral conveying rod 16, which is located inside the slag discharge pipe 12.
[0018] Specifically: rectangular rubber pads 3 are installed between the L-shaped equipment base 2 and the centrifugal oil separator 4 to form a fully enclosed flexible vibration damping support structure, which can effectively isolate and attenuate the high-frequency vibration generated during the high-speed centrifugal operation of the centrifugal oil separator 4, and prevent the vibration from being directly transmitted to the hull structure, thereby reducing the continuous operating noise of the engine room from the source; pre-installation, positioning and debugging are completed before the ship's final assembly, completely replacing the traditional decentralized independent installation mode; the rectangular rubber pads 3 at the top of the L-shaped equipment base 2 can directly realize the rapid positioning and fitting installation of the centrifugal oil separator 4.
[0019] In this embodiment, the first slag discharge pipe 9 is connected to the slag discharge port of the centrifugal oil separator 4 through an internally threaded pipe joint 14 at its top end; the first slag discharge pipe 9 is connected to the second slag discharge pipe 12 through an internally threaded pipe joint 14 at its bottom end and an externally threaded pipe joint 13 at its top end; a drive shaft 11 is connected to the outside of the first slag discharge pipe 9 through a bearing, and the outside of the drive shaft 11 is connected to the output end of the servo motor 10; the servo motor 10 is connected to the top end of the screw conveyor 16 through the drive shaft 11 connected to its output end; the oil separator heater 6 is connected to the input end of the centrifugal oil separator 4 through an oil outlet pipe 7 with a valve connected to its outside.
[0020] Among them: the servo motor 10 drives the drive shaft 11 to rotate, which drives the crushing blades 15, which are evenly spaced on the outer wall of the drive shaft 11, to rotate at high speed, and synchronously shears and crushes the oil sludge and large solid impurities discharged from the centrifugal oil separator 4, eliminating the risk of large impurities clogging the pipeline from the source; the spiral conveying rod 16, which is fixedly connected to the bottom of the drive shaft 11, rotates synchronously with the shaft, forming a continuous forced conveying channel inside the slag discharge pipe 2 12, and axially pushes the crushed high-viscosity oil sludge.
[0021] In practical applications, this modular layout structure for ship oil separator equipment includes the following tasks: The L-shaped equipment base 2 is fixedly installed above the oil residue tank 1. The centrifugal oil separator 4 is installed on the top of the L-shaped equipment base 2 through rectangularly distributed rubber pads 3. The rubber pads 3 can effectively isolate and attenuate the vibration generated during the operation of the centrifugal oil separator 4, prevent the vibration from being transmitted to the ship structure, and at the same time realize the rapid modular disassembly and positioning of the equipment. Marine fuel oil or lubricating oil to be processed enters the interior of the oil separator heater 6 through the oil inlet pipe 5. The oil separator heater 6 precisely heats the oil to reduce its kinematic viscosity, creating optimal conditions for subsequent centrifugal separation. A pressure gauge 8 installed on one side of the oil separator heater 6 monitors the oil pressure in the oil circuit in real time to ensure stable system oil supply pressure and avoid overpressure or underpressure conditions affecting the separation effect. After heating, the oil is transported to the input end of the centrifugal oil separator 4 through the valved oil outlet pipe 7 connected to the outside of the oil separator heater 6 and enters the interior of the centrifugal oil separator 4. The centrifugal oil separator 4 purifies and separates the oil through high-speed centrifugation, separating the water and solid impurities mixed in the oil from the clean oil. The separated clean oil is output from the oil outlet of the centrifugal oil separator 4 to the marine oil system, while the oil sludge and solid impurities generated during separation are discharged from the sludge discharge port at the bottom of the centrifugal oil separator 4. Oil residue enters the discharge pipe 9, which is sealed to the centrifugal oil separator 4 through the discharge port and internal threaded pipe joint 14. The servo motor 10 starts and drives the drive shaft 11 connected to its output end to rotate. The drive shaft 11 is supported by bearings through the side wall of the discharge pipe 9 to ensure smooth rotation and reliable pipeline sealing. When the drive shaft 11 rotates, it simultaneously drives the crushing blades 15, which are evenly spaced on its outer wall, to rotate at high speed. This shears and crushes the oil residue and large solid impurities that enter the discharge pipe 9, preventing the accumulation of large impurities from causing pipeline blockage and creating conditions for subsequent transportation. The crushed oil residue flows downward and enters the second slag discharge pipe 12, which is connected to the first slag discharge pipe 9 by the internal thread pipe joint 14 and the external thread joint 13. The spiral conveying rod 16, which is fixedly connected to the bottom of the drive shaft 11, rotates synchronously with the drive shaft 11. The spiral conveying rod 16 forms a forced conveying channel inside the second slag discharge pipe 12, and continuously and stably pushes the oil residue axially through the rotating spiral blades.
[0022] Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.
Claims
1. A modular layout structure for equipment in a ship's oil separator room, characterized in that: It includes an oil sludge compartment (1), an oil inlet pipe (5), and a sludge discharge pipe (9). An L-shaped equipment base (2) is provided directly above the oil sludge compartment (1). Rubber pads (3) are rectangularly distributed at the top of the L-shaped equipment base (2). The bottom of a centrifugal oil separator (4) is attached to the outside of the rubber pads (3). An oil outlet pipe (7) with a valve is connected to one side of the centrifugal oil separator (4). The oil inlet pipe (5) is located at the input end of the oil separator heater (6). A pressure gauge (8) is provided on one side of the oil separator heater (6).
2. The modular layout structure of the ship's oil separator room equipment according to claim 1, characterized in that: The slag discharge pipe 1 (9), servo motor (10), drive shaft (11), slag discharge pipe 2 (12), external threaded connector (13), internal threaded pipe connector (14), crushing blade (15), and spiral conveying rod (16) constitute a conveying mechanism. The slag discharge pipe 1 (9) is located at the bottom of the centrifugal oil separator (4). The centrifugal oil separator (4) is equipped with a servo motor (10) on one side. The output end of the servo motor (10) is connected to the drive shaft (11). The slag discharge pipe 1 (9) is connected through the outside of the drive shaft (11). External threaded connectors (13) are provided on both the upper and lower sides of the slag discharge pipe 2 (12). Crushing blades (15) are provided at equal intervals on the outside of the drive shaft (11).
3. The modular layout structure of the ship's oil separator room equipment according to claim 2, characterized in that: The bottom end of the drive shaft (11) is connected to a spiral conveying rod (16), which is located inside the slag discharge pipe (12).
4. The modular layout structure of the ship's oil separator room equipment according to claim 3, characterized in that: The slag discharge pipe 1 (9) is connected to the slag discharge port of the centrifugal oil separator (4) through the internal threaded pipe joint (14) provided at the top.
5. The modular layout structure of the ship's oil separator room equipment according to claim 4, characterized in that: The first slag discharge pipe (9) is connected to the second slag discharge pipe (12) via an internal threaded pipe joint (14) at its bottom end and an external threaded joint (13) at its top end.
6. The modular layout structure of the ship's oil separator room equipment according to claim 5, characterized in that: The outer side of the slag discharge pipe (9) is connected to a drive shaft (11) via a bearing, and the outer side of the drive shaft (11) is connected to the output end of the servo motor (10).
7. The modular layout structure of the ship's oil separator room equipment according to claim 6, characterized in that: The servo motor (10) is connected to the top of the screw conveyor (16) via a drive shaft (11) at its output end.
8. The modular layout structure of the ship's oil separator room equipment according to claim 7, characterized in that: The oil separator heater (6) is connected to the input end of the centrifugal oil separator (4) via an externally connected oil outlet pipe (7) with a valve.
9. The modular layout structure of the ship's oil separator room equipment according to claim 8, characterized in that: The operation method is as follows: The marine fuel oil or lubricating oil to be processed enters the interior of the oil separator heater (6) through the oil inlet pipe (5). The oil separator heater (6) precisely heats the oil to reduce the kinematic viscosity of the oil. The pressure gauge (8) set on one side of the oil separator heater (6) monitors the oil pressure in the oil circuit in real time to ensure the stability of the system oil supply pressure. After the oil is heated, it is transported to the input end of the centrifugal oil separator (4) through the oil outlet pipe (7) with valve connected to the outside of the oil separator heater (6) and enters the interior of the centrifugal oil separator (4). The centrifugal oil separator (4) purifies and separates the oil through high-speed centrifugation, separating the water and solid impurities mixed in the oil from the clean oil. The clean oil after separation is output to the marine oil system through the oil outlet of the centrifugal oil separator (4). The oil residue and solid impurities generated by separation are discharged from the slag discharge port at the bottom of the centrifugal oil separator (4). The oil residue enters the centrifugal oil separator (4) through the slag discharge port and is sealed with the centrifugal oil separator (4) through the internal thread pipe joint (14). Inside the first slag discharge pipe (9), the servo motor (10) starts and drives the drive shaft (11) connected to its output end to rotate. The drive shaft (11) is supported by the side wall of the first slag discharge pipe (9) through the bearing, ensuring smooth rotation and reliable pipeline sealing. When the drive shaft (11) rotates, it drives the crushing blades (15) set at equal intervals on its outer wall to rotate at high speed, shearing and crushing the oil sludge and large solid impurities that enter the first slag discharge pipe (9), avoiding the accumulation of large impurities and causing pipeline blockage, and creating conditions for subsequent conveying. The crushed oil sludge flows downward and enters the second slag discharge pipe (12) which is connected to the first slag discharge pipe (9) through the internal thread pipe joint (14) and the external thread joint (13) for thread sealing. The spiral conveying rod (16) fixedly connected to the bottom end of the drive shaft (11) rotates synchronously with the drive shaft (11). The spiral conveying rod (16) forms a forced conveying channel inside the second slag discharge pipe (12), and the oil sludge is continuously and stably pushed axially by the rotating spiral blades.