A vacuum grease purification device

Abstract

This utility model relates to the field of grease purification technology, specifically to a vacuum grease purification device. It includes a base plate with an oil storage tank mounted on it. An oil inlet pipe for inputting oil is connected to the bottom of the oil storage tank. A vacuum pump for providing negative pressure is located on one side of the oil storage tank. A water storage tank is located above the vacuum pump, and an exhaust outlet is located at the top of the water storage tank. A heating mechanism is located on the oil storage tank, and a filtering mechanism is located at the top of the oil storage tank. An oil inlet pipe and an oil outlet pipe are connected to both ends of the filtering mechanism. The oil inlet pipe is connected to the oil storage tank, and the oil outlet pipe is connected to a buffer tank. The top of the buffer tank is connected to the vacuum pump via a pipe. This application employs a filtering mechanism composed of multiple layers of filter elements, which can be dispersed or integrated using a telescopic cylinder for easy disassembly and cleaning. Each filter element operates independently without affecting the others, so even if some filter elements become clogged, the filtering function remains unaffected. This application uses simultaneous filtration from different channels, significantly reducing the size compared to traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of grease purification technology, specifically to a vacuum grease purification device. Background Technology

[0002] In industrial production, a large amount of oil is needed for driving or lubrication. However, the oil will become mixed with a lot of impurities during use, and discarding or disposing of it will be wasteful. Therefore, modern methods often purify the oil before putting it into use. However, as shown in Chinese utility model patent with publication number CN207024699U, most existing equipment is large in size and stores a lot of oil. That is, after the equipment is emptied, some oil needs to be added when it is turned on. Only the oil added on this basis will be filtered and discharged. A certain amount of oil will remain in the equipment and is difficult to completely drain. It is difficult to guarantee that the oil supplied to users will be completely filtered and delivered in equal quantities. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed vacuum grease purification device that can solve the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: It includes a base plate, on which an oil storage tank is mounted. The bottom of the oil storage tank is connected to an oil inlet pipe for inputting oil. A vacuum pump for providing negative pressure is provided on one side of the oil storage tank. A water storage tank is provided above the vacuum pump. An exhaust outlet is provided at the top of the water storage tank. A heating mechanism is provided on the oil storage tank. A filtering mechanism is provided at the top of the oil storage tank. An oil inlet pipe and an oil outlet pipe are respectively connected to both ends of the filtering mechanism. The oil inlet pipe is connected to the oil storage tank. The oil outlet pipe is connected to a buffer tank. The top of the buffer tank is connected to the vacuum pump through a pipe.

[0005] Preferably, the filtration mechanism includes a telescopic cylinder vertically mounted on the side of the oil storage tank. The piston rod of the telescopic cylinder is connected to a movable telescopic rod. Several filter elements are provided on the oil storage tank. The filter elements have the same structure. A top cover is installed on the top of the movable telescopic rod. The shape of the top cover matches the filter element. When the telescopic cylinder extends, the top cover and multiple filter elements are dispersed through the movable telescopic rod. When in use, the telescopic cylinder retracts, and the top cover and multiple filter elements are aligned vertically and pressed together in sequence. Each filter element includes a circular filter part, and a connecting part is connected to its side. The movable telescopic rod is connected to the connecting part. Two through holes are also opened on the connecting part of each filter element. The oil inlet pipe and the oil outlet pipe are respectively connected to the two through holes of the bottom filter element. An annular sealing groove for placing a sealing ring is opened on the outer side of the top of each through hole.

[0006] Preferably, among the plurality of filter elements, the lowest filter element is installed on the oil storage tank, and the remaining filter elements and the top cover are rotatably installed on the movable telescopic rod.

[0007] Preferably, the movable telescopic rod includes a positioning rod installed on the oil storage tank. The positioning rod is inserted into the filter element at the bottom. Multiple movable rods are arranged vertically at the top of the positioning rod, with the diameter of the movable rods decreasing from bottom to top. A sliding groove is opened at the top of the positioning rod and each movable rod. The movable rods are slidably installed in sequence. Each movable rod has an outwardly protruding piston ring at the bottom, which is slidably installed in the sliding groove. The positioning rod and the movable rods are hollow tubes. A top rod is slidably installed at the top of the uppermost movable rod. The bottom of the top rod is connected to the piston rod of the telescopic cylinder through a connecting rod. Except for the filter element at the bottom, the other filter elements are rotatably installed on the movable rods. The top cover is rotatably installed on the top rod.

[0008] Preferably, the filter section has an upward-facing filter chamber, and the side wall of the filter chamber has three layers of stepped grooves. A filter plate is provided on the middle stepped groove, which divides the filter chamber into upper and lower chambers. An oil inlet hole is provided on the inner wall of the upper chamber, which is connected to a through hole for connecting the upper oil pipe. An oil outlet hole is provided on the inner wall of the lower chamber, which is connected to a through hole for connecting the oil outlet pipe. An annular pressure ring is also provided in the upper chamber. When the upper filter element or the upper cover is pressed down, the pressure ring presses the filter plate below it. An annular sealing groove for placing a sealing ring is also provided on the outer side of the filter section of the filter chamber.

[0009] Preferably, the bottom of the oil storage tank is connected to a tee via a pipe. One outlet of the tee is connected to an oil pipe via a shut-off valve, and the other outlet is connected to a switching valve. This outlet is connected to the inlet of the switching valve. One outlet of the switching valve is connected to an emergency buffer tank, and the other outlet is connected to a circulation pump. The heating mechanism includes an external heater connected to the output end of the circulation pump. The oil outlet of the external heater is connected to the upper side of the oil storage tank via a pipe.

[0010] Preferably, the vacuum pump is connected to a switching valve two via a pipeline, and the pipeline of the vacuum pump is connected to the middle channel of the switching valve two. The two side channels of the switching valve two are respectively connected to the top of the buffer tank and the emergency buffer tank via pipelines.

[0011] Preferably, the base plate is also provided with an oil pump, the oil pump's suction port is connected to the bottom of the buffer tank, and the oil outlet is used to connect to the oil outlet pipe.

[0012] The beneficial effects of this utility model after adopting the above structure are: 1. This application adopts a filter mechanism composed of multiple filter elements, which can be dispersed or integrated by telescopic cylinders, making it easy to disassemble and clean. Moreover, each filter element works independently and does not affect the others. Therefore, even if some filter elements are clogged, the filtration function will not be affected. This application employs a filtration mechanism, which allows oil to be filtered from different channels. Compared to traditional equipment, the equipment size is significantly reduced while ensuring oil output efficiency.

[0013] 2. This application uses vacuum negative pressure adsorption to remove oil, and filters the oil through multiple filter plates working independently, thus removing the oil without leaving a large amount of oil.

[0014] 3. The filter element in this application adopts multiple seals to seal the moving parts and prevent air or oil leakage.

[0015] 4. This application adopts a circulating heating system, which combines the principle of different densities of hot and cold oil to achieve rapid and uniform heating. Furthermore, it controls the negative pressure and oil flow path through a valve group, resulting in a complete function and a relatively simple structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the left front side structure of this utility model; Figure 2 This is a schematic diagram of the outer structure of this utility model; Figure 3 This is a schematic diagram of the right side structure of this utility model; Figure 4 This is a bottom view of the present invention when the base plate is removed; Figure 5 This is a partial structural diagram of the filter mechanism when the top cover is opened in this utility model; Figure 6 This is a cross-sectional view of the movable telescopic rod in this utility model; Figure 7 This is a schematic diagram of the filter element in this utility model; Figure 8 This is a cross-sectional view of the filter element in this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Base plate; 2. Oil storage tank; 3. Oil inlet pipe; 4. Tee; 5. On / off valve; 6. Switching valve one; 7. Emergency buffer tank; 8. Circulation pump; 9. External heater; 10. Vacuum pump; 11. Water storage tank; 12. Switching valve two; 13. Oil outlet pump; 14. Buffer tank; 15. Oil inlet pipe; 16. Oil outlet pipe; 17. Telescopic cylinder; 18. Movable telescopic rod; 1801. Positioning rod; 1802. Movable rod; 1803. Top rod; 1804. Connecting rod; 19. Filter element; 1901. Connecting part; 1902. Filter part; 1903. Through hole; 1904. Sealing groove one; 1905. Filter chamber; 1906. Filter plate; 1907. Oil inlet hole; 1908. Oil outlet hole; 1909. Pressure ring; 1910. Sealing groove two; 20. Top cover. Detailed Implementation

[0018] 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.

[0019] See Figures 1-5 As shown, it includes a base plate 1, an oil storage tank 2 is mounted on the base plate 1, an oil inlet pipe 3 for inputting oil is connected to the bottom of the oil storage tank 2, a vacuum pump 10 for providing negative pressure is provided on one side of the oil storage tank 2, a water storage tank 11 is provided above the vacuum pump 10, an exhaust outlet is provided at the top of the water storage tank 11, a heating mechanism is provided on the oil storage tank 2, a filter mechanism is provided at the top of the oil storage tank 2, an oil inlet pipe 15 and an oil outlet pipe 16 are respectively connected to both ends of the filter mechanism, an oil outlet pipe 16 is connected to a buffer tank 14, and the top of the buffer tank 14 is connected to the vacuum pump 10 through a pipe; The bottom of the oil storage tank 2 is connected to a tee 4 via a pipe. One outlet of the tee 4 is connected to an oil pipe 15 via a shut-off valve 5, and the other outlet is connected to a switching valve 6, which is also connected to the inlet of the switching valve 6. One outlet of the switching valve 6 is connected to an emergency buffer tank 7, and the other outlet is connected to a circulation pump 8. The heating mechanism includes an external heater 9 connected to the output end of the circulation pump 8. The oil outlet of the external heater 9 is connected to the upper side of the oil storage tank 2 via a pipe. The vacuum pump 10 is connected to a switching valve 12 via a pipe, and the pipe of the vacuum pump 10 is connected to the middle channel of the switching valve 12. The two side channels of the switching valve 12 are respectively connected to the top of the buffer tank 14 and the emergency buffer tank 7 via pipes. The flow of oil from the bottom of the oil storage tank 2 to the oil pipe 15 is controlled by the on / off valve 5, which controls the opening and closing of the filter. The switching valve 6 can control the flow of oil towards the circulation pump 8 or the emergency buffer tank 7. If the oil flows towards the circulation pump 8, it can be heated by the external heater 9 and then sent back to the oil storage tank 2. The emergency buffer tank 7 is used to quickly extract the oil to ensure safety after the equipment stops in case of accidents, such as boiling over or other extreme situations. The switching valve 12 is used to switch the vacuum pressure to the buffer tank 14 or the emergency buffer tank 7. When switched to the emergency buffer tank 7, the negative pressure can extract the oil in the oil storage tank 2. When switched to the buffer tank 14, a negative pressure is generated to achieve oil filtration. The base plate 1 is also equipped with an oil pump 13. The oil suction port of the oil pump 13 is connected to the bottom of the buffer tank 14, and the oil outlet is used to connect the oil outlet pipe 16. The buffer tank 14 temporarily buffers the oil to achieve oil outlet buffering. For example, when the oil outlet container is full and needs to be replaced, the oil pump 13 only needs to be stopped. At this time, the oil filtered by the filter mechanism is stored in the buffer tank 14 without stopping the filtration operation.

[0020] See Figures 1-8 As shown, the filtration mechanism includes a telescopic cylinder 17 vertically mounted on the side of the oil storage tank 2. A movable telescopic rod 18 is connected to the top of the piston rod of the telescopic cylinder 17. Several filter elements 19 are mounted on the oil storage tank 2, and these filter elements 19 have identical structures. A top cover 20 is mounted on the top of the movable telescopic rod 18, and the shape of the top cover 20 matches that of the filter elements 19. When the telescopic cylinder 17 extends, the movable telescopic rod 18 causes the top cover 20 and the multiple filter elements 19 to disperse. During use, the telescopic cylinder 17 retracts, and the top cover 20 and the multiple filter elements 19 disperse. 9. Align the filter elements 19 with each other and press them together. Each filter element 19 includes a circular filter part 1902 with a connecting part 1901 connected to its side. The movable telescopic rods 18 are connected to the connecting part 1901. Two through holes 1903 are also opened on the connecting part 1901 of each filter element 19. The upper oil pipe 15 and the oil outlet pipe 16 are respectively connected to the two through holes 1903 of the bottom filter element 19. An annular sealing groove 1904 for placing a sealing ring is opened on the outer side of the top of each through hole 1903. Of the multiple filter elements 19, the lowest filter element 19 is installed on the oil storage tank 2, while the remaining filter elements 19 and the top cover 20 are rotatably installed on the movable telescopic rod 18. The movable telescopic rod 18 includes a positioning rod 1801 installed on the oil storage tank 2. The positioning rod 1801 is inserted into the filter element 19 at the bottom. Multiple movable rods 1802 are arranged vertically at the top of the positioning rod 1801. The diameter of the movable rods 1802 decreases from bottom to top. The top of the positioning rod 1801 and each movable rod 1802 has a sliding groove. The movable rods 1802 are slidably installed in sequence. Each movable rod 1802 has an outwardly protruding piston ring at the bottom. The piston ring is slidably installed in the sliding groove. The positioning rod 1801 and the movable rods 1802 are hollow tubes. The top of the uppermost movable rod 1802 is slidably installed with a top rod 1803. The bottom of the top rod 1803 is connected to the piston rod of the telescopic cylinder 17 through a connecting rod 1804. Except for the filter element 19 at the bottom, the other filter elements 19 are rotatably installed on the movable rods 1802. The top cover 20 is rotatably installed on the top rod 1803. The filter section 1902 has an upward-facing filter chamber 1905. The side wall of the filter chamber 1905 has three layers of stepped grooves. A filter plate 1906 is installed on the middle stepped groove. The filter plate 1906 has appropriate filter holes selected according to processing requirements. A filter screen or packing material can also be laid on top of it according to filtration needs, such as decolorization. The filter plate 1906 divides the filter chamber 1905 into upper and lower chambers. An oil inlet hole 1907 is provided on the inner wall of the upper chamber, which connects to a through hole 19 of the upper oil pipe 15. Connected to 03, an oil outlet hole 1908 is opened on the inner wall of the lower chamber, which is connected to the through hole 1903 of the oil outlet pipe 16; in the upper chamber, an annular pressure ring 1909 is also provided. When the upper filter element 19 or the upper cover 20 is pressed down, the pressure ring 1909 presses the filter plate 1906 below it. When a filter screen is set on it, the filter screen can also be pressed at the same time. An annular sealing groove 1910 for placing a sealing ring is also opened on the filter part 1902 outside the filter chamber 1905. During use, the telescopic cylinder 17 retracts, which drives the push rod 1803 to move down. The piston ring at the bottom of the push rod 1803 and the movable rod 1802 reaches the bottom of the slide groove. At the same time, under the action of gravity, the upper cover 20 and the filter element 19 are pressed together in sequence. The sealing rings in the sealing groove 1904 and the sealing groove 2910 achieve the sealing between the adjacent upper cover 20 and the filter element 19. The two sets of through holes 1903 that are aligned and connected at the top and bottom form the oil inlet and oil outlet passages that are respectively connected to the upper oil pipe 15 and the oil outlet pipe 16. At this time, the filter element 19 and the two oil passages are connected in parallel, so they are all filtered independently and do not affect each other. When the telescopic cylinder 17 extends, it can drive the top rod 1803 to rise, and then the upper cover 20 to rise. At the same time, after the piston ring of each movable rod 1802 reaches the top of the slide groove, it can drive the downward movable rod 1802 to rise until the upper cover 20 and the filter element 19 are separated. Since the upper cover 20 and the filter elements 19 except the bottom one are rotatably installed, the filter elements 19 can be rotated outward to clean the filter plate 1906. After the upper filter element 19 is rotated open, the bottom filter element 19 can also be cleaned. After cleaning, rotate back to align and retract the telescopic cylinder 17. During filtration, the oil enters the upper chamber of the filter chamber 1905 through the oil inlet 1907. Under negative pressure, it is filtered through the filter plate 1906. The clean oil then flows into the lower chamber and out through the oil outlet 1908. It is then sent into the buffer tank 14 through the oil outlet pipe 16. Since the negative pressure is connected to the top by the vacuum pump 10 and the switching valve 12, the oil flows to the bottom of the buffer tank 14 for storage under the action of gravity after entering.

[0021] During operation, first connect the oil suction pipe to the oil inlet pipe 3, and then connect the oil storage container through the pipe or extend it into the oil. The emergency buffer tank 7 is connected to the upper end of the oil storage tank 2. Therefore, by applying negative pressure at the end of the emergency buffer tank 7 through the vacuum pump 10, negative pressure can be generated in the oil storage tank 2 to draw in the oil. After the oil is fed in, the circulation pump 8 can be started, and the switching valve 6 connects the oil storage tank 2 and the circulation pump 8. Since the high temperature oil will automatically float, the circulation pump 8 will draw out the low temperature oil at the bottom of the oil storage tank 2, heat it with the external heater 9, and then send it back. This can achieve rapid and uniform heating so that the oil reaches the specified temperature. Then the circulation pump 8 can be turned off, the vacuum pump 10 can be started, and negative pressure can be applied to the buffer tank 14. The negative pressure draws the oil from the oil storage tank 2 through the oil outlet pipe 16 and the oil inlet pipe 15. After being filtered by each set of filter elements 19, the oil is collected in the buffer tank 14 and can be discharged through the oil outlet pump 13. If the filter plate 1906 becomes clogged after a period of use, the telescopic cylinder 17 can be raised to rotate out each filter element 19 for cleaning.

[0022] The installation, connection, or setting methods of the components not detailed above are all common mechanical methods, and the specific structure, model, and coefficient indicators of all their components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be elaborated further.

[0023] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A vacuum grease purification device, comprising a base plate (1) on which an oil storage tank (2) is mounted, characterized in that: The bottom of the oil storage tank (2) is connected to an oil inlet pipe (3) for inputting oil. A vacuum pump (10) for providing negative pressure is provided on one side of the oil storage tank (2). A water storage tank (11) is provided above the vacuum pump (10). An outlet for exhaust is provided at the top of the water storage tank (11). A heating mechanism is provided on the oil storage tank (2). A filter mechanism is provided at the top of the oil storage tank (2). An oil inlet pipe (15) and an oil outlet pipe (16) are respectively connected to both ends of the filter mechanism. The oil inlet pipe (15) is connected to the oil storage tank (2). The oil outlet pipe (16) is connected to a buffer tank (14). The top of the buffer tank (14) is connected to the vacuum pump (10) through a pipe.

2. The vacuum grease purification device according to claim 1, characterized in that: The filtration mechanism includes a telescopic cylinder (17) vertically mounted on the side of the oil storage tank (2). The piston rod of the telescopic cylinder (17) is connected to a movable telescopic rod (18). Several filter elements (19) are provided on the oil storage tank (2). The filter elements (19) have the same structure. A top cover (20) is installed on the top of the movable telescopic rod (18). The shape of the top cover (20) matches the filter elements (19). When the telescopic cylinder (17) extends, the top cover (20) and the multiple filter elements (19) are dispersed through the movable telescopic rod (18). When in use, the telescopic cylinder (17) retracts, and the top cover (20) and the multiple filter elements (19) disperse. The components (19) are aligned vertically and pressed together in sequence. Each filter component (19) contains a circular filter part (1902) with a connecting part (1901) connected to its side. The movable telescopic rod (18) is connected to the connecting part (1901). Two through holes (1903) are also opened on the connecting part (1901) of each filter component (19). The upper oil pipe (15) and the oil outlet pipe (16) are respectively connected to the two through holes (1903) of the bottom filter component (19). An annular sealing groove (1904) for placing the sealing ring is opened on the outer side of the top of each through hole (1903).

3. The vacuum grease purification device according to claim 2, characterized in that: Of the multiple filter elements (19), the lowest filter element (19) is installed on the oil storage tank (2), and the remaining filter elements (19) and the top cover (20) are rotatably installed on the movable telescopic rod (18).

4. The vacuum grease purification device according to claim 3, characterized in that: The movable telescopic rod (18) includes a positioning rod (1801) installed on the oil storage tank (2). The positioning rod (1801) is inserted into the bottommost filter element (19). Multiple movable rods (1802) are arranged vertically at the upper end of the positioning rod (1801). From bottom to top, the diameter of the movable rods (1802) decreases. The top of the positioning rod (1801) and each movable rod (1802) has a sliding groove. The movable rods (1802) are slidably installed in sequence. The bottom of each movable rod (1802) has a... The piston ring is provided with an outward protrusion and is slidably installed in the groove. The positioning rod (1801) and the movable rod (1802) are both hollow tubes. The top of the uppermost movable rod (1802) is slidably installed with a top rod (1803). The bottom of the top rod (1803) is connected to the piston rod of the telescopic cylinder (17) through a connecting rod (1804). Except for the bottommost filter element (19), the other filter elements (19) are rotatably installed on the movable rod (1802). The top cover (20) is rotatably installed on the top rod (1803).

5. The vacuum grease purification device according to claim 2, characterized in that: The filter section (1902) has an upward-facing filter chamber (1905). The side wall of the filter chamber (1905) has three layers of stepped grooves. A filter plate (1906) is installed on the middle stepped groove. The filter plate (1906) divides the filter chamber (1905) into upper and lower chambers. An oil inlet hole (1907) is provided on the inner wall of the upper chamber, connecting to a through hole (1903) for the upper oil pipe (15). An outlet hole is provided on the inner wall of the lower chamber. The oil hole (1908) is connected to the through hole (1903) of the oil outlet pipe (16); in the upper chamber, there is also an annular pressure ring (1909). When the upper filter element (19) or the upper cover (20) is pressed down, the pressure ring (1909) presses the filter plate (1906) below it. The filter part (1902) is also provided with an annular sealing groove (1910) for placing the sealing ring on the outside of the filter chamber (1905).

6. The vacuum grease purification device according to claim 1, characterized in that: The bottom of the oil storage tank (2) is connected to a tee (4) via a pipe. One outlet of the tee (4) is connected to an oil pipe (15) via a shut-off valve (5), and the other outlet is connected to a switching valve (6). This outlet is connected to the inlet of the switching valve (6). One outlet of the switching valve (6) is connected to an emergency buffer tank (7), and the other outlet is connected to a circulating pump (8). The heating mechanism includes an external heater (9) connected to the output end of the circulating pump (8). The oil outlet of the external heater (9) is connected to the upper side of the oil storage tank (2) via a pipe.

7. The vacuum grease purification device according to claim 6, characterized in that: The vacuum pump (10) is connected to the switching valve (12) via a pipe, and the pipe of the vacuum pump (10) is connected to the middle channel of the switching valve (12). The two side channels of the switching valve (12) are respectively connected to the top of the buffer tank (14) and the emergency buffer tank (7) via pipes.

8. The vacuum grease purification device according to claim 7, characterized in that: The base plate (1) is also equipped with an oil pump (13), the oil suction port of the oil pump (13) is connected to the bottom of the buffer tank (14), and the oil outlet is used to connect the oil outlet pipe (16).

Images