A vacuum regenerated oil purification device

Abstract

This utility model provides a vacuum regeneration oil purification device, comprising: a frame, on which are mounted an oil inlet pipe, an oil inlet pump, a first filter tank, a second filter tank, a heater, a vacuum separation tank, a nozzle, a vacuum pump, an oil pump, a first acid removal filter tank, a second acid removal filter tank, and an oil outlet pipe, with each component connected sequentially. This vacuum regeneration oil purification device adopts an integrated, mobile design, combining vacuum dehydration and acid reduction / decolorization functions on the same equipment. It can perform vacuum dehydration, impurity removal, or acid reduction / decolorization as needed, offering diverse functions and excellent removal effects on moisture, impurities, gases, acidic substances, and organic matter in contaminated oil.

Description

Technical Field

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

[0002] Vacuum regeneration oil purification equipment is a highly efficient oil purification device widely used in power, petroleum, chemical, and machinery industries. It primarily utilizes the boiling point difference between water and oil, employing vacuum heating and condensation technology to separate water, gases, and impurities from the oil, thereby purifying it. The specific process includes pretreatment, vacuum heating, evaporation and condensation, oil purification, and discharge of clean oil.

[0003] Currently, vacuum regeneration oil purification devices still have the following defects in actual operation: (1) The adsorption and purification effect on particulate matter, acidic substances, organic matter, etc. in contaminated oil is low; (2) The water removal efficiency is low (especially for dissolved water), and the insufficient vacuum degree leads to insufficient utilization of the boiling point difference; (3) To achieve vacuum dehydration + acid reduction and decolorization, traditional oil filters need to be equipped with a vacuum oil filter and an acid removal device; large space occupation: the two devices are independent and require dedicated placement space; complex layout: the independent placement of the two devices requires complex pipeline connections and line layout in the oil processing process. The connection between different devices needs to be precisely planned, otherwise problems such as excessively long pipelines and too many bends may occur, increasing the resistance of oil transportation, reducing processing efficiency, and causing inconvenience to the daily inspection and maintenance of operators; high procurement cost; high operating cost: the two devices operate independently, consuming energy such as electricity and water resources. High maintenance cost: the maintenance standards and cycles of different devices may differ, requiring more time and effort to develop maintenance plans. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a vacuum regeneration oil purification device. It adopts an integrated and mobile design, combining vacuum dehydration and acid reduction / decolorization functions on the same device. It can perform vacuum dehydration, impurity removal, or acid reduction / decolorization as needed, offering diverse functions and effectively removing moisture, impurities, gases, acidic substances, and organic matter from contaminated oil.

[0005] To achieve the above technical solution, this utility model provides a vacuum regeneration oil purification device, comprising: a frame, on which are mounted an oil inlet pipe, an oil inlet pump, a first filter tank, a second filter tank, a heater, a vacuum separation tank, a nozzle, a vacuum pump, an oil pump, a first acid removal filter tank, a second acid removal filter tank, and an oil outlet pipe. The oil inlet pipe is connected to the oil inlet of the oil inlet pump, the oil outlet of the oil inlet pump is connected to the oil inlet of the first filter tank, the oil outlet of the first filter tank is connected to the oil inlet of the heater, and the oil outlet of the heater is connected to a nozzle installed at the center of the top of the vacuum separation tank. A vacuum separator is also installed on the top of the vacuum separation tank, on one side of the nozzle. The vacuum outlet pipe has one end connected to the vacuum pump's vacuum port. A vacuum regulating valve is installed on the pipe connecting the vacuum outlet pipe and the vacuum pump. An oil pump is installed at the bottom of the vacuum separation tank. The oil pump's suction port is connected to the oil discharge port at the bottom of the vacuum separation tank via a pipe. The oil pump's outlet is connected to the inlet of the second filter tank. The outlet of the second filter tank is connected to the inlet of the first acid removal filter tank, the inlet of the second acid removal filter tank, and the outlet pipe, respectively. The outlet of the first acid removal filter tank is connected to the inlet of the second acid removal filter tank and the outlet pipe, respectively. The outlet of the second acid removal filter tank is connected to the outlet pipe.

[0006] In the above technical solution, during actual operation, the contaminated oil to be treated is first pumped through the inlet pipe to the first filter tank for filtration, and then enters the heater for heating. The hot oil is atomized into coarse mist through the nozzle and enters the vacuum separator tank, where water begins to evaporate. The oil mist falls into the vacuum separator tank, forming a three-dimensional, multi-layered evaporation structure. Through short-term circulation, the oil fluidity increases after heating, making it easier for water and gas to precipitate, promoting water evaporation, reducing oil viscosity, and better protecting equipment and oil. Air and water vapor are extracted from the top of the container by the vacuum pump. The purified oil can be processed according to actual requirements. When deacidification is not required, the purified oil is pumped to the second filter tank for secondary filtration and then directly discharged through the outlet pipe. When deacidification is required, the purified oil is pumped to the second filter tank for secondary filtration, then to either the first or second deacidification filter tank for acid reduction filtration before being discharged through the outlet pipe.

[0007] Preferably, an inlet check valve is installed on the oil inlet pipe, and an outlet check valve is installed on the oil outlet pipe to prevent backflow.

[0008] Preferably, the vacuum separation tank is equipped with a vacuum gauge and a temperature sensor to monitor the vacuum level and temperature inside the vacuum separation tank in real time.

[0009] Preferably, an air filter is installed at the vacuum outlet of the vacuum pump. Air and water vapor are drawn out from the top of the container by the vacuum pump, filtered by the air filter, and then discharged to the outside to prevent environmental pollution.

[0010] Preferably, a control box is also installed on the frame. The control box is electrically connected to the oil inlet pump, the first filter tank, the second filter tank, the vacuum separation tank, the vacuum pump, the oil pump, the vacuum gauge, and the temperature sensor. In actual operation, the control box enables automatic control of the equipment.

[0011] Preferably, the bottom of the frame is equipped with multiple casters. This vacuum regeneration oil purification device is integrated on the same frame, which can greatly reduce the area occupied by the equipment and make it movable, greatly facilitating the use of the equipment.

[0012] The beneficial effects of the vacuum regeneration oil purification device provided by this utility model are as follows:

[0013] (1) This vacuum regeneration oil purification device integrates functions such as precision filtration, high-efficiency dehydration, and rapid demulsification. It can effectively break down all emulsion structures in the oil, preventing the oil from emulsifying. It can efficiently remove free water, emulsion water, and some dissolved water from the oil, resulting in a water content of less than 50 ppm in the treated oil. It can also efficiently filter out solid particles in the oil and control the cleanliness of the oil, achieving a level of (NAS-1638) 2-5.

[0014] (2) This vacuum regeneration oil purification device integrates vacuum dehydration and deacidification functions into a single unit, significantly reducing its size; the integrated unit has a compact internal structure and reasonable layout, reducing the complexity of external connections and improving the overall stability of the equipment; it realizes centralized utilization and efficient conversion of energy, reducing energy consumption, labor costs, and maintenance costs; the integrated unit avoids multiple transfers of oil products, completing vacuum and deacidification processes directly within one device, reducing the risk of oil loss and contamination, and improving the purity and quality of oil processing; the integrated unit enables simultaneous or continuous operation of vacuum and deacidification functions, greatly shortening the processing time and increasing the amount of oil processed per unit time.

[0015] (3) This vacuum regeneration oil purification device adopts a design of primary filter + acid reduction regeneration filter + secondary filter, which can effectively filter out fine mechanical impurities, residual sludge, gel and varnish in the oil, optimize foam characteristics to improve resistivity, control the cleanliness of oil, and achieve a particle retention rate of 99.99%.

[0016] (4) This vacuum regeneration oil purification device adopts a dual-pump coordinated control system consisting of an inlet pump and an outlet pump. The inlet pump is responsible for drawing the oil to be filtered from the oil tank and delivering it to the heating and vacuum degassing system. The outlet pump is responsible for stably returning the purified oil to the target equipment or storage tank. It is equipped with a backflow prevention safety device to prevent backflow contamination. A PLC controller is used to adjust the speed of the two pumps to ensure flow matching and avoid pressure imbalance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a front view of the present invention.

[0019] Figure 3 This is a side view of the present invention.

[0020] Figure 4 This is a top view of the present invention.

[0021] In the diagram: 1. Frame; 2. Oil inlet pipe; 3. Oil inlet pump; 4. First filter tank; 5. Second filter tank; 6. Heater; 7. Vacuum separation tank; 8. Nozzle; 9. Vacuum outlet pipe; 10. Vacuum regulating valve; 11. Control box; 12. Vacuum pump; 13. Air filter; 14. Oil pump; 15. First acid removal filter tank; 16. Second acid removal filter tank; 17. Oil outlet pipe; 18. Temperature sensor; 19. Vacuum gauge; 20. Casters; 21. Oil inlet check valve; 22. Oil outlet check valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: A vacuum regeneration oil purification device.

[0024] Reference Figures 1 to 4As shown, a vacuum regeneration oil purification device includes: a frame 1, on which are installed an oil inlet pipe 2, an oil inlet pump 3, a first filter tank 4, a second filter tank 5, a heater 6, a vacuum separation tank 7, a nozzle 8, a vacuum pump 12, an oil pump 14, a first acid removal filter tank 15, a second acid removal filter tank 16, and an oil outlet pipe 17. The bottom of the frame 1 is equipped with four casters 20. This vacuum regeneration oil purification device is integrated on the same frame 1, which can greatly reduce the area occupied by the equipment and is movable, greatly facilitating the use of the equipment. The oil inlet pipe 2 is connected to the inlet of the oil pump 3, and the outlet of the oil pump 3 is connected to the inlet of the first filter tank 4. The first filter tank 4 achieves preliminary filtration of particulate matter in the contaminated oil. The outlet of the first filter tank 4 is connected to the inlet of the heater 6, and the outlet of the heater 6 is connected to the nozzle 8 installed at the center of the top of the vacuum separator 7. In actual operation, after the oil to be treated is filtered, it enters the heater 6 for heating. The hot oil is transformed into a coarse mist by the nozzle 8 and enters the vacuum separator 7, where water begins to evaporate. The oil mist falls into the vacuum separator 7, forming a three-dimensional, multi-layered evaporation structure inside the tank. Through short-term circulation, the fluidity of the heated oil is enhanced, and water and gas are more easily separated, which can promote water evaporation, reduce oil viscosity, and better protect equipment and oil products. The adjustable heater 6 can raise the temperature of the oil to be treated by up to 30°C at a time, reducing the viscosity of the emulsified oil and achieving rapid demulsification of oil-in-water or water-in-oil emulsions, ensuring the optimal oil separation temperature.

[0025] The vacuum separation tank 7 is also equipped with a vacuum outlet pipe 9 on one side of the nozzle 8 at its top. One end of the vacuum outlet pipe 9 is connected to the vacuum port of the vacuum pump 12. A vacuum regulating valve 10 is installed on the pipe connecting the vacuum outlet pipe 9 and the vacuum pump 12. An air filter 13 is installed at the vacuum outlet of the vacuum pump 12. Air and water vapor are drawn out from the top of the container by the vacuum pump 12, filtered by the air filter 13, and then discharged to prevent environmental pollution. The vacuum separation tank 7 is equipped with a vacuum gauge 19 and a temperature sensor 18 to monitor the vacuum level and temperature inside the vacuum separation tank 7 in real time. The vacuum level of the vacuum separation tank 7 is controlled and maintained by the vacuum pump 12 and the vacuum regulating valve 10. By adjusting the vacuum regulating valve 10, the working vacuum of the vacuum separation tank 7 is usually set between -0.6 bar and -0.9 bar, which is displayed on the vacuum gauge 19 of the vacuum separation tank 7.

[0026] An oil pump 14 is installed at the bottom of the vacuum separator 7. The oil inlet of the oil pump 14 is connected to the oil outlet at the bottom of the vacuum separator 7 via a pipe. The oil outlet of the oil pump 14 is connected to the oil inlet of the second filter tank 5. The oil outlet of the second filter tank 5 is connected to the oil inlets of the first acid removal filter tank 15, the second acid removal filter tank 16, and the oil outlet pipe 17. The oil outlet of the first acid removal filter tank 15 is connected to the oil inlet of the second acid removal filter tank 16 and the oil outlet pipe 17. The oil outlet of the second acid removal filter tank 16 is connected to the oil outlet pipe 17. An inlet check valve 21 is installed on the inlet pipe 2, and an outlet check valve 22 is installed on the outlet pipe 17 to prevent backflow. The frame 1 is also equipped with a control box 11, which is electrically connected to the oil inlet pump 3, the first filter tank 4, the second filter tank 5, the heater 6, the vacuum separation tank 7, the vacuum pump 12, the oil pump 14, the first acid removal filter tank 15, the second acid removal filter tank 16, the vacuum gauge 19, and the temperature sensor 18. In actual operation, the control box 11 realizes automatic control of the equipment.

[0027] In this embodiment, during actual operation, the contaminated oil to be processed is first transported to the first filter tank 4 for filtration via the oil inlet pipe 2 and the oil inlet pump 3. Then, it enters the heater 6 for heating. The hot oil is atomized into coarse mist via the nozzle 8 and enters the vacuum separator 7, where water begins to evaporate. The oil mist falls into the vacuum separator 7, forming a three-dimensional, multi-layered evaporation structure inside the tank. Through short-term circulation, the oil fluidity is enhanced after heating, and water and gas are more easily separated, which can promote water evaporation, reduce oil viscosity, and better protect equipment and oil. Air and water vapor are extracted from the top of the vacuum separator 7 by the vacuum pump 12, filtered by the air filter 13, and then discharged to prevent environmental pollution. The purified oil can be operated according to actual requirements. When deacidification is not required, the purified oil is transported to the second filter tank 5 for secondary filtration via the oil pump 14 and then directly output through the oil outlet pipe 17. When deacidification is required, the purified oil is pumped by oil pump 14 to the second filter tank 5 for secondary filtration, and then pumped to the first deacidification filter tank 15 or the second deacidification filter tank 16 for acid reduction filtration before being output through the oil outlet pipe 17.

[0028] This vacuum regeneration oil purification device integrates vacuum dehydration and acid removal functions into a single unit, significantly reducing its size. The integrated unit boasts a compact internal structure and rational layout, reducing the complexity of external connections and improving overall equipment stability. It achieves centralized and efficient energy utilization and conversion, reducing energy consumption, labor costs, and maintenance costs. The integrated unit avoids multiple oil transfers, completing vacuum and acid removal processes directly within a single device, reducing the risk of oil loss and contamination, and improving the purity and quality of the processed oil. Furthermore, the integrated unit enables simultaneous or continuous vacuum and acid removal functions, greatly shortening processing time and increasing the oil throughput per unit time.

[0029] This vacuum regeneration oil purification device integrates functions such as precision filtration, high-efficiency dehydration, and rapid demulsification. It can effectively break down all emulsion structures in oil, preventing oil from emulsifying. It efficiently removes free water, emulsified water, and some dissolved water from oil, resulting in a water content of less than 50 ppm in the treated oil. It also efficiently filters out solid particles from oil, controlling oil cleanliness to achieve (NAS-1638) level 2-5.

[0030] This vacuum regeneration oil purification device employs a design of a primary filter + acid reduction and regeneration filter + secondary filter, effectively removing fine mechanical impurities, residual sludge, gel, and varnish from the oil. It optimizes foam characteristics to increase resistivity, controls oil cleanliness, and achieves a 99.99% particle rejection rate. The device utilizes a dual-pump collaborative control system: an inlet pump and a suction pump. The inlet pump draws the oil to be filtered from the tank and delivers it to the heating and vacuum degassing system. The suction pump stably returns the purified oil to the target equipment or storage tank, equipped with a backflow prevention safety device to prevent contamination. A PLC controller regulates the speed of both pumps to ensure flow matching and avoid pressure imbalance.

[0031] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A vacuum regeneration oil purification device, characterized in that... include: The machine frame includes an oil inlet pipe, an oil inlet pump, a first filter tank, a second filter tank, a heater, a vacuum separation tank, a nozzle, a vacuum pump, an oil extraction pump, a first acid removal filter tank, a second acid removal filter tank, and an oil outlet pipe. The oil inlet pipe is connected to the oil inlet of the oil inlet pump, the oil outlet of the oil inlet pump is connected to the oil inlet of the first filter tank, the oil outlet of the first filter tank is connected to the oil inlet of the heater, and the oil outlet of the heater is connected to a nozzle installed at the center of the top of the vacuum separation tank. A vacuum outlet pipe is also installed on the top of the vacuum separation tank, located to one side of the nozzle, with one end of the vacuum outlet pipe connected to the vacuum pump's vacuum port. The connection is as follows: a vacuum regulating valve is installed on the pipe connecting the vacuum outlet pipe and the vacuum pump; an oil pump is installed at the bottom of the vacuum separation tank; the oil pump's suction port is connected to the oil discharge port at the bottom of the vacuum separation tank via a pipe; the oil pump's outlet is connected to the inlet of the second filter tank, the inlet of the first acid removal filter tank, and the inlet of the second acid removal filter tank, respectively; the second filter tank's outlet is connected to the inlet of the first acid removal filter tank and the outlet pipe, respectively; the first acid removal filter tank's outlet is connected to the inlet of the second acid removal filter tank and the outlet pipe, respectively; and the second acid removal filter tank's outlet is connected to the outlet pipe.

2. The vacuum regeneration oil purification device as described in claim 1, characterized in that: An inlet check valve is installed on the oil inlet pipe, and an outlet check valve is installed on the oil outlet pipe.

3. The vacuum regeneration oil purification device as described in claim 1, characterized in that: The vacuum separation tank is equipped with a vacuum gauge and a temperature sensor.

4. The vacuum regeneration oil purification device as described in claim 1, characterized in that: An air filter is installed at the vacuum outlet of the vacuum pump.

5. The vacuum regeneration oil purification device as described in claim 4, characterized in that: The frame is also equipped with a control box, which is electrically connected to the oil inlet pump, the first filter tank, the second filter tank, the vacuum separation tank, the heater, the vacuum pump, the oil pump, the first acid removal filter tank, the second acid removal filter tank, the vacuum gauge, and the temperature sensor.

6. The vacuum regeneration oil purification device as described in claim 1, characterized in that: The bottom of the frame is equipped with multiple casters.

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