Dirty oil purification device for oil intermingling of ship pipeline

Abstract

The invention relates to the technical field of sump oil purification, in particular to a sump oil purification device for oil intermingling of a ship pipeline, which comprises a sump oil tank for storing sump oil discharged from the inside of the ship pipeline; the coarse filtration assembly is used for performing coarse filtration on impurities in the sump oil so as to reduce the impurities in the sump oil; the heating box is used for heating the sump oil to remove moisture in the sump oil; the separation assembly is used for separating residual impurities in the dirty oil to obtain relatively pure oil; the oil purifying cabinet is used for storing purified oil; the coarse filtering frame in the filter is transformed, the upper end and the lower end of the coarse filtering frame are larger than the middle end of the coarse filtering frame, the cavity is formed between the middle of the coarse filtering frame and the filter body, and when impurities in the coarse filtering frame are gradually increased along with time, dirty oil can still enter the cavity from the upper portion of the coarse filtering frame; the coarse filtering frame does not need to be frequently replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of waste oil purification devices, and particularly to a waste oil purification device for ship pipeline oil flushing. Background Art

[0002] During the shipbuilding process, some oil system pipelines contain impurities such as welding slag, rust, and dust. At present, most shipyards use pipeline oil flushing to clean the system pipelines. Oil flushing can remove these impurities and prevent them from entering the equipment and damaging precision components such as bearings and gears. Since the medium oil used for oil flushing is contaminated by the impurities existing in the pipeline, most shipowners do not recommend or agree to leave it in the system and continue to use it as the system working oil. Instead, new system oil needs to be refilled, which increases the shipbuilding cost. Based on the above-described problems, during the current shipbuilding process, a small lubricating oil recovery, storage, and treatment system is built at the shipyard to purify the oil used for oil flushing so that it can be reused as the system working oil or as the medium oil for system oil flushing, greatly reducing the shipbuilding cost of the same series of ships.

[0003] Chinese Patent CN214436902U discloses a waste oil purification and recovery device with low dynamic viscosity, including a purification liquid collector, a sealing gasket, a grid support plate, a filter cloth, a liquid storage barrel, a liquid storage barrel cover plate, a thermometer, a pressure gauge, a safety valve, an air inlet valve, and a liquid level gauge; the purification liquid collector is arranged at the bottom of the liquid storage barrel and communicates with it, and the bottom of the purification liquid collector is provided with an outlet; between the purification liquid collector and the liquid storage barrel, a sealing gasket, a grid support plate, a filter cloth, and another sealing gasket are sequentially arranged from bottom to top; the liquid storage barrel cover plate covers the top surface of the liquid storage barrel; the thermometer, the pressure gauge, the safety valve, the air inlet valve, and the liquid level gauge are respectively connected to the liquid storage barrel; the air inlet valve is used to connect a gas supply device. In this patent, the waste oil passes through the grid support plate, and the waste oil can pass through the grid support plate while the impurities are left on the grid support plate.

[0004] In this prior art, the waste oil passes through the grid support plate, and the impurities will remain on the grid support plate. As the filtration time increases, the waste oil will gradually block the holes on the support plate, resulting in low filtration efficiency and the need to frequently replace the filter plate. Some filters will add scrapers inside or use a knocking method to remove the impurities blocking the filter holes, but this method requires more structures and is relatively complex. Summary of the Invention

[0005] The object of the present invention is to provide a waste oil purification device for ship pipeline oil flushing. By transforming the coarse filter frame in the filter, the upper and lower ends of the coarse filter frame are larger than the middle part thereof, and a cavity is formed between the middle part of the coarse filter frame and the filter body. When the impurities in the coarse filter frame gradually increase over time, the waste oil can still enter the cavity from the upper part of the coarse filter frame, and there is no need to frequently replace the coarse filter frame.

[0006] To solve the problems of the prior art, the present invention provides a waste oil purification device for ship pipeline oil flushing, including a waste oil tank for storing the waste oil discharged from the interior of the ship pipeline; a coarse filtration assembly for coarsely filtering the impurities in the waste oil to reduce the impurities in the waste oil; a heating tank for heating the waste oil to remove the moisture in the waste oil; a separation assembly for separating the remaining impurities in the waste oil to obtain relatively pure oil; a clean oil tank for storing the purified oil; the coarse filtration assembly includes a filter body, and a support platform is further fixed inside the filter body. The coarse filtration assembly internally includes a coarse filter frame for coarsely filtering the impurities in the waste oil. The coarse filter frame is placed on the support platform, and the sizes of the top and bottom ends of the coarse filter frame are larger than the size of the middle part of the coarse filter frame. The middle part of the coarse filter frame is recessed inward to form a cavity with the inner wall of the filter body.

[0007] Preferably, the cross-sections of the top and bottom of the coarse filter frame are set as quadrilaterals, and the bottom of the coarse filter frame is sleeved outside the support platform. The coarse filter frame and the filter body together form a cavity. As the impurities in the coarse filter frame gradually accumulate, the waste oil can still enter the cavity through the upper part of the coarse filter frame.

[0008] Preferably, a handle for conveniently removing the coarse filter frame is further provided at the top of the coarse filter frame, and a plurality of filter holes for filtration are further provided on the coarse filter frame. The handle can conveniently remove the coarse filter frame.

[0009] Preferably, a first oil pump for pumping the waste oil in the coarse filtration assembly into the heating tank is further provided between the coarse filtration assembly and the heating tank, and a second oil pump for pumping the waste oil in the heating tank into the separation assembly is further provided between the heating tank and the separation assembly.

[0010] Preferably, quick-connect components are further connected between the waste oil tank and the coarse filtration assembly, between the coarse filtration assembly and the first oil pump, between the first oil pump and the heating tank, and between the heating tank and the second oil pump.

[0011] Preferably, the quick-connect component includes a male connecting pipe and a female connecting pipe. The male connecting pipe can be inserted into the female connecting pipe. A clamping groove is further formed on the outer surface of the male connecting pipe. A plurality of beads are movably arranged around the center position of the female connecting pipe near the male connecting pipe. When the male connecting pipe is inserted into the female connecting pipe, the beads can be clamped in the clamping groove, and a sealing ring for preventing oil leakage is further arranged at the junction of the male connecting pipe and the female connecting pipe in the female connecting pipe.

[0012] Preferably, a spring is further sleeved on the outer part of the female connecting pipe near the male connecting pipe, and a limiting sliding part capable of sliding on the female connecting pipe is further sleeved on the outer part of the female connecting pipe. One end of the spring is connected to the limiting sliding part, and the other end of the spring is connected to the female connecting pipe. When the limiting sliding part moves to the position of the beads, the limiting sliding part can cover the beads to insert the beads into the clamping groove. When the limiting sliding part is separated from the beads, at this time, the spring is compressed.

[0013] Preferably, a heater for heating the dirty oil is further arranged inside the heating tank, and a temperature sensor for detecting the oil temperature inside it is further arranged inside the heating tank. The heater can heat the dirty oil in the heating tank to facilitate the evaporation of the moisture in the dirty oil.

[0014] Preferably, an oil discharge valve for discharging the oil into the clean oil tank is connected to the oil outlet end of the separation component.

[0015] Preferably, the oil outlet end of the separation component is connected to a centrifugal separator through a pipeline, and a drain pipe for discharging the oil into the clean oil tank and a slag discharge port for discharging the residue into the residue collection tank are further arranged on the centrifugal separator.

[0016] The beneficial effects of the present invention compared with the prior art are as follows:

[0017] 1. A filter body is provided in the present application, and a support platform is further arranged inside the filter body. A coarse filter frame is installed on the support platform. The design feature of the coarse filter frame is that the sizes of its top and bottom are larger than the size of the middle part, forming a structure sunken inward. This structure and the filter body together form a cavity. As the impurities in the coarse filter frame gradually accumulate, the dirty oil can still enter the cavity through the upper part of the coarse filter frame and continue to flow into the heating tank. This design reduces the need for frequent replacement of the coarse filter frame, thereby reducing the replacement frequency of the coarse filter frame.

[0018] 2. The present application also uses a quick-connect component to replace the traditional flange connection method to achieve quick connection and assembly between each module. During use, only need to insert the male connecting pipe into the female connecting pipe. At this time, the spring drives the limiting sliding part to move, so that the limiting sliding part covers and presses the beads and firmly fixes them in the clamping groove, thereby completing the connection. The design of this quick-connect component enables each module to be quickly installed without additional installation tools. Description of the Drawings

[0019] Figure 1 It is the first three - dimensional structure schematic diagram of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0020] Figure 2 It is the second three - dimensional structure schematic diagram of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0021] Figure 3 It is the third three - dimensional structure schematic diagram of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0022] Figure 4 It is the top - view structure schematic diagram of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0023] Figure 5 It is the sectional structure schematic diagram of the coarse - filtration component of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0024] Figure 6 It is the first explosion structure schematic diagram of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0025] Figure 7 It is of an oily waste purification device for ship pipeline oil flushing in the present invention Figure 6 The enlarged structure schematic diagram at position A.

[0026] Figure 8 It is the sectional structure schematic diagram of the separation component of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0027] Figure 9 It is the second explosion structure schematic diagram of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0028] Figure 10 It is the explosion structure schematic diagram of the centrifugal separator of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0029] Figure 11 It is the three - dimensional structure schematic diagram of the separation frame of an oily waste purification device for ship pipeline oil flushing in the present invention.

[0030] The reference numerals in the figure are: 1, waste oil tank; 2, coarse filtration component; 21, filter body; 211, support platform; 212, coarse filtration frame; 3, first oil pump; 4, heating tank; 41, heater; 5, second oil pump; 6, separation component; 61, centrifugal separator; 611, rotation driving part; 612, rotating disk; 613, magnetic attraction block; 6131, limiting groove; 614, separation frame; 615, jack; 6151, limiting block; 62, separator body; 63, separation cavity; 64, guide ball; 65, return oil pipe; 66, upper oil pipe; 67, buckle; 7, clean oil tank; 8, quick connection component; 81, connecting male pipe; 811, card slot; 82, connecting female pipe; 821, card bead; 822, spring; 823, limiting sliding part. Detailed implementation mode

[0031] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0032] Refer to Figures 1 - 11 As shown in the figure, the present invention provides a waste oil purification device for ship pipeline oil flushing, including a waste oil tank 1 for storing the waste oil discharged from the interior of the ship pipeline; a coarse filtration component 2 for coarsely filtering the impurities in the waste oil to reduce the impurities in the waste oil; a heating tank 4 for heating the waste oil to remove the moisture in the waste oil; a separation component 6 for separating the remaining impurities in the waste oil to obtain relatively pure oil; a clean oil tank 7 for storing the purified oil; the coarse filtration component 2 includes a filter body 21, a support platform 211 is further fixed inside the filter body 21, the coarse filtration component 2 internally includes a coarse filtration frame 212 for coarsely filtering the impurities in the waste oil, the coarse filtration frame 212 is placed on the support platform 211, and the sizes of the top and bottom of the coarse filtration frame 212 are larger than the size of the middle part of the coarse filtration frame 212, and the middle part of the coarse filtration frame 212 is recessed towards its interior to form a cavity with the inner wall of the filter body 21.

[0033] The waste oil is first collected in the waste oil tank 1 and then enters the coarse filtration component 2. Inside the coarse filtration component 2, the waste oil is preliminarily filtered through the coarse filtration frame 212 to remove larger impurities. Then, the waste oil enters the heating tank 4 for heating treatment to remove moisture. The heated waste oil then enters the separation component 6 to further separate the remaining impurities, and finally relatively pure oil is obtained and stored in the clean oil tank 7.

[0034] Refer to Figure 5As shown, the cross-sections at the top and bottom of the coarse filter frame 212 are set as quadrilaterals, and the bottom of the coarse filter frame 212 is sleeved outside the support platform 211. This sleeving method ensures the stability and positioning accuracy of the coarse filter frame 212 inside the filter body 21. The bottom of the coarse filter frame 212 is designed with a quadrilateral cross-section. This design not only provides a stable support surface but also facilitates the cooperation and positioning with the support platform 211. A handle is also provided at the top of the coarse filter frame 212 to facilitate the removal of the coarse filter frame 212. The handle not only enables the operator to remove the coarse filter frame 212 from the filter body 21 for cleaning or replacement, but also several filtering holes for filtration are provided on the coarse filter frame 212. During the waste oil purification process, the waste oil first enters the coarse filtration component 2. Due to the special design of the coarse filter frame 212, when the waste oil passes through the filtering holes, the larger impurities therein are effectively intercepted inside the coarse filter frame 212. As the waste oil continues to flow in, the impurities inside the coarse filter frame 212 gradually accumulate. When a certain accumulation amount is reached, the operator can remove the coarse filter frame 212 from the filter body 21 through the handle for cleaning or replacement. In this way, the continuous and effective operation of the coarse filtration component 2 can be ensured.

[0035] The design feature of the coarse filter frame 212 is that the dimensions of its top and bottom ends are larger than those of the middle part, forming a structure that is recessed inward. This structure and the filter body 21 together form a cavity. As the impurities in the coarse filter frame 212 gradually accumulate, the waste oil can still enter the cavity through the upper part of the coarse filter frame 212 and continue to flow into the heating tank 4. This design reduces the need for frequent replacement of the coarse filter frame 212, thereby reducing the replacement frequency of the coarse filter frame 212.

[0036] Reference Figures 1 - 4 As shown, a first oil pump 3 is also provided between the coarse filtration component 2 and the heating tank 4 to pump the waste oil in the coarse filtration component 2 into the heating tank 4. The main function of the first oil pump 3 is to pump out the waste oil that has passed through the coarse filtration from the coarse filtration component 2 and pump it into the heating tank 4 for heating treatment. The introduction of the first oil pump 3 ensures that the waste oil can flow smoothly from the coarse filtration component 2 to the heating tank 4, making the waste oil flow smoothly. A second oil pump 5 is also provided between the heating tank 4 and the separation component 6 to pump the waste oil in the heating tank 4 into the separation component 6. The function of the second oil pump 5 is to pump out the heated waste oil from the heating tank 4 and pump it into the separation component 6 for further impurity separation. The second oil pump 5 also ensures that the waste oil can flow smoothly from the heating tank 4 to the separation component 6, providing a stable oil flow for the subsequent purification treatment.

[0037] Production depends Figures 6 - 7As shown, a quick-connect component 8 is also connected between the dirty oil tank 1 and the coarse filtration component 2, between the coarse filtration component 2 and the first oil pump 3, between the first oil pump 3 and the heating tank 4, and between the heating tank 4 and the second oil pump 5. The quick-connect component 8 includes a connecting male pipe 81 and a connecting female pipe 82. The connecting male pipe 81 can be inserted into the connecting female pipe 82 to form a tight connection. A card slot 811 is also provided on the outer surface of the connecting male pipe 81. Several beads 821 are movably arranged around the center of the connecting female pipe 82 at a position close to the connecting male pipe 81 on the connecting female pipe 82. When the connecting male pipe 81 is inserted into the connecting female pipe 82, the beads 821 can be stuck in the card slot 811. And a sealing ring for preventing oil leakage is provided at the junction of the connecting male pipe 81 and the connecting female pipe 82 in the connecting female pipe 82. In order to prevent oil leakage, a sealing ring is also provided at the junction of the connecting male pipe 81 and the connecting female pipe 82 in the connecting female pipe 82. This design ensures that the oil will not leak from the connection point.

[0038] Reference Figures 6 - 7 As shown, the design of the quick-connect component 8 makes the connection and disassembly between various components very simple and fast, greatly improving the maintenance efficiency and flexibility of the equipment. Through the tight cooperation of the card slot 811 and the beads 821 and the setting of the sealing ring, the quick-connect component 8 can effectively prevent oil leakage, ensuring the normal operation and safety of the equipment. When it is necessary to clean or replace components such as the coarse filtration component 2 and the oil pump, the operator can quickly disconnect the quick-connect component 8, remove the components for cleaning or replacement, and then reconnect the quick-connect component 8. Due to the introduction of the quick-connect component 8, the maintenance of the equipment becomes simpler and faster, thus reducing the maintenance cost and time cost.

[0039] A spring 822 is also sleeved on the outer part of the connecting female pipe 82 close to the connecting male pipe 81, and a limiting sliding part 823 that can slide on the connecting female pipe 82 is also sleeved on the outer part of the connecting female pipe 82. One end of the spring 822 is connected to the limiting sliding part 823, and the other end of the spring 822 is connected to the connecting female pipe 82. When the limiting sliding part 823 moves to the position of the beads 821, the limiting sliding part 823 can cover the beads 821 to make the beads 821 inserted into the card slot 811. When the limiting sliding part 823 is separated from the beads 821, at this time, the spring 822 is compressed. When it is necessary to disconnect the connection, manually move the limiting sliding part 823 to separate the limiting sliding part 823 from the beads 821. At this time, the spring 822 is compressed. The cross-section of the card slot 811 is trapezoidal. When the connecting male pipe 81 and the connecting female pipe 82 are separated, the beads 821 can roll along the inclined surface of the card slot 811, and thus the beads 821 are separated from the card slot 811.

[0040] Just insert the connecting male pipe 81 into the connecting female pipe 82. At this time, the spring 822 drives the limit slider 823 to move, so that the limit slider 823 covers and presses the clamping bead 821, firmly fixing it in the clamping groove 811, thus completing the connection. The design of this quick-connect component 8 enables the quick installation of each module without the need for additional installation tools.

[0041] Reference Figures 8 - 11 As shown, a heater 41 for heating the waste oil is also provided inside the heating tank 4. The heater 41 is the core component inside the heating tank 4, and its main function is to heat-treat the waste oil entering the heating tank 4. The purpose of heating is to increase the temperature of the waste oil, so that the moisture in it evaporates or is more easily separated, improving the purification efficiency. In order to make the moisture evaporate quickly, a stirring component can also be added to the heating tank 4 to continuously stir the waste oil, thereby improving the heat conduction efficiency. The heater 41 usually uses electric heating. When the waste oil enters the heating tank 4, the heater 41 starts to work and heats the waste oil to a predetermined temperature. The heating temperature is usually determined according to the type of waste oil, the water content, and the requirements of the subsequent treatment process. A temperature sensor for detecting the internal oil temperature is also provided inside the heating tank 4. The temperature sensor is used to monitor the oil temperature inside the heating tank 4 in real time to ensure that the oil temperature always remains within the set range. This is crucial for ensuring the heating effect and avoiding equipment damage caused by overheating. The temperature sensor is usually installed inside the heating tank 4 and can accurately sense the change in the oil temperature. When the oil temperature rises or falls, the temperature sensor transmits a signal to the control panel (not shown in the figure, which is prior art). The control panel adjusts the power of the heater 41 according to the preset temperature range to maintain the stability of the oil temperature.

[0042] Embodiment 1: The oil outlet end of the separation component 6 is connected with an oil discharge valve for discharging the oil into the clean oil tank 7.

[0043] Embodiment 2: The oil outlet end of the separation component 6 is connected to a separator through a pipeline, and the separator is also provided with an oil discharge pipe for discharging the oil into the clean oil tank 7 and a slag discharge port for discharging the residue into the residue collection tank.

[0044] The separation component 6 includes a separator body 62. The interior of the separator body 62 is divided into an upper cavity and a lower oil cavity. A separation cavity 63 is also provided at the top of the separation component 6. During use, the second oil pump 5 pumps the waste oil in the heating tank 4 into the lower oil cavity of the separator body 62.

[0045] The bottom of the separation chamber 63 is connected with an oil return pipe 65. The bottom end of the oil return pipe 65 extends into the upper cavity in the separator body 62. The oil return pipe 65 returns the separated oil to the upper cavity so that the oil can enter the next process. The bottom end of the oil return pipe 65 extends into the upper cavity in the separator body 62. A centrifugal separator 61 is also arranged in the separation chamber 63. The centrifugal separator 61 includes a rotation driving part 611 arranged in the separation chamber 63. The rotation driving part 611 can be a motor or other rotatable mechanisms. The output end of the rotation driving part 611 is connected with a rotating disk 612. The rotation driving part 611 provides power for the rotating disk 612 to drive the rotating disk 612 to rotate. The rotation driving part 611 is usually connected to an external power supply or power source. The centrifugal separator 61 also includes a separation frame 614 arranged on the rotating disk 612. The rotating disk 612 makes the separation frame 614 rotate, so as to separate the dirty oil and impurities again. A plurality of jacks 615 are evenly arranged at the bottom of the separation frame 614. A plurality of limiting blocks 6151 are arranged in the jacks 615. Magnetic attraction blocks 613 matched with the jacks 615 are also arranged on the rotating disk 612. A limiting groove 6131 matched with the limiting blocks 6151 is also formed on the magnetic attraction blocks 613. The magnetic attraction blocks 613 are used to connect with the separation frame 614. The limiting groove 6131 formed on the magnetic attraction blocks 613 is matched with the limiting blocks 6151 on the separation frame 614 to ensure the stability of the separation frame 614 during rotation. The magnetic attraction blocks 613 can be inserted into the jacks 615, which is convenient for the separation frame 614 to be quickly installed and removed, and is convenient for cleaning the impurities in the separation frame 614. A plurality of guiding balls 64 for limiting the separation frame 614 are rotatably arranged at the top of the inner wall of the separation chamber 63. The guiding balls 64 are used to limit and guide the separation frame 614 to ensure the stability and accuracy of the separation frame 614 during rotation. A buckle 67 is also arranged at the top of the separation chamber 63. The buckle 67 is clamped with the upper oil pipe 66. The oil outlet end of the upper oil pipe 66 is arranged on the separation frame 614. When the lower oil cavity in the separator body 62 is full, the dirty oil will flow into the separation frame 614 from the upper oil pipe 66. Subsequently, through the rotation driving part 611, the rotation driving part 611 makes the rotating disk 612 rotate, and the rotating disk 612 makes the separation frame 614 rotate, so that the dirty oil is thrown out from the separation frame 614, and the impurities are left in the separation frame 614.

[0046] After the dirty oil is heated, the dirty oil enters the lower cavity of the separator body 62 through the second oil pump 5. The centrifugal separator 61 starts to work. The rotation driving part 611 drives the rotating disk 612 to rotate, and the rotating disk 612 drives the separation frame 614 to rotate. The dirty oil is thrown out of the separation frame 614 under the action of centrifugal force. The dirty oil flows into the upper cavity from the oil return pipe 65. Subsequently, the oil flows into the clean oil tank 7 for storage, or the oil enters the oil separator to separate the oil. The guiding balls 64 limit and guide the separation frame 614 to ensure its stability and accuracy during rotation.

[0047] Through the centrifugal separation technology, impurities and pure oil in the waste oil can be efficiently separated. The magnetic attraction connection between the separation frame 614 and the rotating disk 612 and the limiting effect of the guide balls 64 ensure the stability of the separation assembly 6 during high-speed rotation. When there are too many impurities inside the separation frame 614, the separation frame 614 can be removed to clean the impurities in the separation frame 614.

[0048] Working principle: During use, only need to insert the male connecting pipe 81 into the female connecting pipe 82. At this time, the spring 822 causes the limiting slider 823 to move, and the limiting slider 823 will cover the detent ball 821 and press the detent ball 821 into the card slot 811, then the connection can be completed, enabling each module to be quickly installed without additional installation tools. By pouring the waste oil into the waste oil tank 1, at this time, under the action of the first oil pump 3, the first oil pump 3 pumps out the waste oil in the waste oil tank 1, and then the waste oil enters the coarse filter frame 212 in the coarse filtering assembly 2. Since the top and bottom dimensions of the coarse filter frame 212 are larger than the middle dimension, the middle part of the coarse filter frame 212 is recessed inward to form a cavity with the filter body 21. When the impurities in the coarse filter frame 212 gradually increase over time, the waste oil can still enter the cavity from the upper part of the coarse filter frame 212 and then enter the heating tank 4, without the need to frequently replace the coarse filter frame 212, reducing the replacement frequency of the coarse filter frame 212. Then the waste oil enters the heating tank 4 to evaporate the water in the waste oil. Subsequently, the waste oil enters the separation assembly 6 from the second oil pump 5, and the waste oil will enter the lower cavity in the separation assembly 6. When the lower cavity in the separation assembly 6 is full, the waste oil falls into the separation frame 614 from the upper oil pipe 66. Subsequently, by starting the rotation drive member 611, the rotation drive member 611 causes the rotating disk 612 to drive the separation frame 614 to rotate. The waste oil is thrown out under the action of centrifugation, and the impurities remain in the separation frame 614. At this time, the purified oil falls into the upper cavity in the separation assembly 6. Subsequently, the processed oil enters the oil separator to separate oils of different components or is directly stored in the clean oil cabinet 7. When there are too many impurities in the separation frame 614, the separation frame 614 can be directly taken out for cleaning.

[0049] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A dirty oil purification device for ship pipeline oil, characterized by: include A dirty oil tank (1), used for storing dirty oil discharged from the ship's pipeline; A coarse filtering component (2) is used to coarsely filter impurities in the dirty oil to reduce the impurities in the dirty oil; A heating box (4) is used to heat the waste oil to remove moisture from the waste oil; A separation component (6) is used to separate the remaining impurities in the dirty oil to obtain relatively pure oil; An oil purification tank (7) for storing purified oil; The invention is characterized in that: the coarse filter assembly (2) comprises a filter body (21), a support platform (211) is fixed inside the filter body (21), the coarse filter assembly (2) comprises a coarse filter frame (212) for coarsely filtering impurities in the dirty oil, the coarse filter frame (212) is placed on the support platform (211), and the dimensions of the top and bottom ends of the coarse filter frame (212) are larger than the dimensions of the middle end of the coarse filter frame (212), and the middle part of the coarse filter frame (212) is recessed inwardly to form a cavity with the inner wall of the filter body (21).

2. A waste oil purification device for ship pipeline oil spill according to claim 1, characterized in that: The cross-sections of the top and bottom of the coarse filter frame (212) are arranged to be quadrilateral, and the bottom of the coarse filter frame (212) is sleeved on the outside of the support platform (211).

3. A waste oil purification device for ship pipeline oil spill according to claim 2, characterized in that: The top of the coarse filter frame (212) is also provided with a handle for conveniently removing the coarse filter frame (212), and the coarse filter frame (212) is also provided with a plurality of filter holes for filtering.

4. A waste oil purification device for ship pipeline oil spill according to claim 1, characterized in that: A first oil pump (3) for pumping dirty oil in the coarse filtering assembly (2) into the heating box (4) is also provided between the coarse filtering assembly (2) and the heating box (4); and a second oil pump (5) for pumping dirty oil in the heating box (4) into the separation assembly (6) is also provided between the heating box (4) and the separation assembly (6).

5. A dirty oil purification device for ship pipeline oil spill according to claim 4, characterized in that: A quick-connect assembly (8) is also connected between the dirty oil tank (1) and the coarse filter assembly (2), between the coarse filter assembly (2) and the first oil pump (3), between the first oil pump (3) and the heating box (4), and between the heating box (4) and the second oil pump (5).

6. A dirty oil purification device for ship pipeline oil spill according to claim 5, characterized in that: The quick-connect assembly (8) comprises a connecting male pipe (81) and a connecting female pipe (82); the connecting male pipe (81) can be inserted into the connecting female pipe (82); a clamping groove (811) is provided on the outer surface of the connecting male pipe (81); a plurality of clamping beads (821) are movably provided on the connecting female pipe (82) near the connecting male pipe (81) and around the center of the connecting female pipe (82); when the connecting male pipe (81) is inserted into the connecting female pipe (82), the clamping beads (821) can be clamped in the clamping groove (811); and a sealing ring is provided in the connecting female pipe (82) at the junction of the connecting male pipe (81) and the connecting female pipe (82) to prevent oil leakage.

7. A dirty oil purification device for ship pipeline oil spill according to claim 6, characterized in that: A spring (822) is also sleeved on the outside of the connecting mother tube (82) near the connecting male tube (81), and a limiting slide (823) capable of sliding on the connecting mother tube (82) is also sleeved on the outside of the connecting mother tube (82). One end of the spring (822) is connected to the limiting slide (823), and the other end of the spring (822) is connected to the connecting mother tube (82). When the limiting slide (823) moves to the card bead (821), the limiting slide (823) can cover the card bead (821) so that the card bead (821) is inserted into the card slot (811). When the limiting slide (823) is separated from the card bead (821), the spring (822) is compressed.

8. The dirty oil purification device for ship pipeline oil spill according to claim 1, characterized in that: The heating box (4) is also provided with a heater (41) for heating the dirty oil, and the heating box (4) is also provided with a temperature sensor for detecting the temperature of the oil therein.

9. The device for purifying waste oil for oil spill in ship pipelines according to claim 1, characterized in that: The oil outlet end of the separation component (6) is connected to an oil discharge valve for discharging the oil into an oil purification tank (7).

10. The dirty oil purification device for ship pipeline oil spill according to claim 1, characterized in that: The oil outlet end of the separation component (6) is connected to an oil separator via a pipeline, and the oil separator is also provided with an oil discharge pipe for discharging oil into an oil purification tank (7) and a residue discharge port for discharging residue into a residue collection tank.

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