Oil purification device

Abstract

The utility model relates to an oil purification device, and relates to the technical field of oil purification equipment. The device comprises a vacuum flash tank, the end of an oil inlet pipe extends into the vacuum flash tank and is provided with a nozzle, the bottom of the oil inlet pipe is connected with an oil outlet pipe and is connected with an oil discharge pipe through an oil discharge pump, and the oil discharge pipe is communicated with the oil inlet pipe through a circulating pipe and is provided with a filter unit, an exhaust unit and an exhaust valve. In addition, an installation frame with bottom wheels is arranged at the bottom of the vacuum flash tank, a plurality of receding holes are formed in the top of the frame, an electrical cabinet and reinforcing ribs are arranged on the side of the frame, and an oil disc floater is further arranged in the vacuum flash tank. The device achieves the effects that water and impurities in oil can be efficiently removed in a self-circulation mode, and the oil quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil purification equipment, in particular to an oil purification device. BACKGROUND

[0002] The oil purification device is mainly used in some occasions that require deep and delicate lubrication. The lubricating liquid involved needs to meet the strict requirements of high-speed mechanical lubrication, mainly playing the roles of lubrication, heat dissipation and cooling speed regulation. However, during the use of the lubricating oil, metal chips, carbon black, water vapor and the like will be mixed with the lubricating oil to form impurities due to various transportation or equipment aging and the like. In order to reduce the use cost, filtration will be arranged during use to reduce the pollution of the oil.

[0003] In the related art, an oil purification device includes a vacuum flash tank, the vacuum flash tank is connected with an oil inlet pipe, the oil inlet pipe is arranged to extend into the vacuum flash tank and is provided with a nozzle at an end thereof, the bottom of the vacuum flash tank is further connected with an oil outlet pipe, the top of the vacuum flash tank is connected with an exhaust unit, and the vacuum flash tank is further connected with a vacuum pump for maintaining a negative pressure state in the vacuum flash tank. The working principle is as follows: the lubricating oil is input into the vacuum flash tank from the oil inlet pipe and is sprayed out through the nozzle, in this process, the lubricating oil containing water vapor is atomized, and the water vapor is evaporated and gathered at the top of the vacuum flash tank under the negative pressure state and is finally discharged from the exhaust unit, while the lubricating oil falls to the bottom of the vacuum flash tank and is finally discharged from the oil outlet pipe.

[0004] The related art in the above has the following defects: although the above method can remove water and impurities in the lubricating oil to a certain extent, it usually has certain limitations. In particular, for the case that the single water removal effect is poor, the traditional vacuum flash method often needs to use multiple vacuum flash tanks in series, which not only increases the equipment cost but also occupies a large space, and thus needs to be improved. CONTENT OF THE UTILITY MODEL

[0005] In order to realize automatic circulation water removal, the present application provides an oil purification device.

[0006] The oil purification device provided by the present application adopts the following technical scheme:

[0007] An oil purification device includes a vacuum flash tank, the vacuum flash tank is further connected with a vacuum pump for maintaining a negative pressure state in the vacuum flash tank, the top of the vacuum flash tank is connected with an exhaust unit, the bottom of the vacuum flash tank is connected with an oil inlet pipe, the oil inlet pipe is connected with an oil inlet valve, the bottom of the vacuum flash tank is connected with an oil outlet pipe, the oil outlet pipe is connected with an oil outlet pipe through an oil outlet pump, the oil outlet pipe is connected with a circulation pipe, the circulation pipe is connected with a circulation valve, and the circulation pipe is arranged to extend into the vacuum flash tank and is provided with a nozzle at an end thereof.

[0008] By adopting the above technical scheme, the automatic circulating water removal function of the oil purification device is realized. Specifically,

[0009] The oil inlet pipe is connected with an oil inlet valve, which can suck the lubricating liquid to be purified into the vacuum flash tank under the negative pressure state in the vacuum flash tank by opening the oil inlet valve.

[0010] The oil outlet pipe is connected with an oil outlet pipe through an oil discharge pump, the oil outlet pipe is connected with a circulating pipe, the circulating pipe is connected with a circulating valve, and the end of the circulating pipe extends into the vacuum flash tank, so that the lubricating liquid can be pumped by the oil discharge pump from the bottom of the vacuum flash tank to the oil outlet pipe, and then flow into the vacuum flash tank through the circulating pipe, and then be sprayed into the vacuum flash tank by the nozzle, so that the lubricating liquid can be selectively circulated and removed by water through the water outlet pipe.

[0011] When the circulating valve is in the open state, the oil discharge pump continuously pumps the lubricating oil at the bottom of the vacuum flash tank to the oil outlet pipe, the circulating pipe and finally back into the top of the vacuum flash tank for re-removal, thereby improving the removal efficiency and effect.

[0012] After the circulation setting time, the circulating valve is closed, and the oil discharge pump can pump the lubricating liquid at the bottom of the vacuum flash tank to the oil outlet pipe and finally discharge, ensuring that the quality of the lubricating liquid after each treatment meets the standard.

[0013] The oil inlet valve is opened again to suck the lubricating liquid to be purified into the vacuum flash tank, and the above-mentioned circulating water removal process is repeated, so that the oil purification is realized continuously and efficiently.

[0014] Preferably, the oil outlet pipe is connected with a filtering unit.

[0015] By adopting the above technical scheme, the oil purification device not only realizes automatic circulating water removal, improves water removal efficiency and effect, but also further removes impurities such as slag in the lubricating oil through the filtering unit, ensures the purity of the lubricating oil, prolongs the service life of the equipment, and reduces the maintenance cost.

[0016] Preferably, the exhaust unit is connected with the vacuum flash tank through an exhaust pipe, and the exhaust pipe is connected with an exhaust valve.

[0017] By adopting the above technical scheme, the effective communication between the exhaust unit and the vacuum flash tank is realized, and the manual control of the exhaust process is managed through the exhaust valve. This not only improves the flexibility and controllability of the system, but also ensures the safety and reliability of the exhaust process. Specifically, the manually controlled exhaust valve can be closed or opened in time when needed, preventing unnecessary gas leakage, while ensuring that the system can effectively remove water vapor and other volatile substances during operation, thereby improving the effect of oil purification.

[0018] Preferably, the oil discharge pump is connected with an oil discharge circuit breaker.

[0019] By adopting the technical scheme, the oil discharge pump is connected with the oil discharge circuit breaker, damage of the oil discharge pump due to overload or short circuit can be effectively prevented, and safety and reliability of the system are improved.

[0020] Preferably, the bottom of the vacuum flash tank is provided with a mounting frame, and the bottom of the mounting frame is provided with a bottom wheel.

[0021] By adopting the technical scheme, the bottom of the mounting frame is provided with the bottom wheel, so that the oil purification device has the moving ability, is convenient for quick transfer between different positions, and the flexibility and adaptability of the equipment are improved. Meanwhile, the design of the bottom wheel reduces the manpower demand during equipment carrying, and improves the operation convenience and work efficiency.

[0022] Preferably, the mounting frame is provided with an electrical cabinet on one side of the mounting frame, and the mounting frame is provided with a reinforcing rib on the side of the electrical cabinet.

[0023] By adopting the technical scheme, the mounting frame is provided with the electrical cabinet on one side of the mounting frame, so that the electrical elements of the oil purification device can be centrally managed, and the operation convenience and safety are improved; meanwhile, the reinforcing rib is arranged on the side of the electrical cabinet, the structural stability is enhanced, the electrical cabinet is prevented from loosening or being damaged due to vibration generated during long-term operation, and the reliability and service life of the whole device are improved.

[0024] Preferably, the top of the mounting frame is provided with a plurality of clearance holes.

[0025] By adopting the technical scheme, the plurality of clearance holes are arranged, so that the mounting frame has higher flexibility and adaptability, the position and size of the holes can be flexibly adjusted according to actual needs, wire threading, pipe threading or mounting of various components are facilitated, and the overall layout rationality of the equipment is improved.

[0026] Preferably, the vacuum flash tank is provided with an oil pan float.

[0027] By adopting the technical scheme, the oil pan float is arranged, so that the lubricating oil level in the vacuum flash tank can be monitored in real time, and the safety and stability of equipment operation are ensured. Specifically, the oil pan float can issue an alarm when the lubricating oil level reaches a preset value, equipment failure caused by excessively high or low liquid level is avoided, and the reliability and automation level of the system are improved.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] 1. By additionally arranging the circulating pipe and the circulating valve, automatic circulation and water removal of the lubricating oil are realized, the water removal effect is significantly improved, and the problem of poor single water removal effect in the prior art is avoided.

[0030] 2. The opening and closing control of the circulation valve enables the lubricating oil to be repeatedly atomized and evaporated in the vacuum flash tank, ensuring sufficient removal of moisture, reducing the need for multiple vacuum flash tanks in series, and reducing equipment cost and floor space;

[0031] 3. The cooperation of the oil inlet valve, oil discharge pump and circulation valve simplifies the operation process, improves work efficiency, and ensures the continuity and stability of the purification process. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0033] Figure 2 is a right view of Figure 1 , used to show the connection relationship between the oil pipe and the vacuum flash tank;

[0034] Figure 3 is a front view of Figure 1 , used to show the connection relationship between the exhaust unit and the vacuum flash tank.

[0035] In the drawings:

[0036] 1. Vacuum flash tank; 11. Mounting frame; 12. Bottom wheel; 13. Electrical cabinet; 14. Reinforcing rib; 15. Letting hole; 16. Oil pan float;

[0037] 2. Vacuum pump;

[0038] 3. Exhaust unit; 31. Exhaust pipe; 32. Exhaust valve;

[0039] 4. Oil inlet pipe; 41. Oil inlet valve;

[0040] 5. Oil outlet pipe; 51. Oil discharge pump; 52. Oil discharge pipe; 53. Filtration unit;

[0041] 6. Circulation pipe; 61. Circulation valve. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings. The described embodiments are only possible technical implementations of the present application, and are not all possible implementations. Those skilled in the art can obtain other embodiments by combining the embodiments of the present application without creative labor, and these embodiments are also within the protection scope of the present application.

[0043] The inventor of the present application finds that the related art oil purification device generally comprises a vacuum flash tank, the vacuum flash tank is connected with an oil inlet pipe, the end of the oil inlet pipe extends into the inside of the vacuum flash tank and is provided with a nozzle, the bottom of the vacuum flash tank is further connected with an oil outlet pipe, the top of the vacuum flash tank is connected with an exhaust unit, and the vacuum flash tank is further connected with a vacuum pump for maintaining the negative pressure state in the inside of the vacuum flash tank. The working principle is that the lubricating oil is sprayed out through the nozzle after being input into the vacuum flash tank from the oil inlet pipe, in this process, the lubricating oil containing water vapor is atomized, and the water vapor evaporates and gathers at the top of the vacuum flash tank under the negative pressure state, and is finally discharged from the exhaust unit, while the lubricating oil falls to the bottom of the vacuum flash tank and is finally discharged from the oil outlet pipe.

[0044] The related art in the above has the following defects: it can only perform single dehydration, and single dehydration often has poor effect, often needs to be used in cooperation with multiple vacuum flash tanks in series, has high cost and large occupation, and thus needs to be improved.

[0045] Therefore, the present application mainly adopts the following scheme, and the purpose of improving the dehydration efficiency and reducing the equipment investment cost and the occupation area is achieved.

[0046] Embodiment

[0047] Reference Figures 1 to 3 The oil purification device provided by the embodiment of the present application comprises a vacuum flash tank 1, the vacuum flash tank 1 is made of high-strength aluminum alloy material and has the characteristics of light weight and corrosion resistance. The inner wall of the vacuum flash tank 1 is coated with a layer of anti-sticking coating to prevent the lubricating oil from scaling in the tank body. The bottom of the vacuum flash tank 1 is provided with a mounting frame 11, the mounting frame 11 is a rectangular steel structure, the main material is Q235B steel, the welding is firm, and the bearing capacity is strong. A plurality of fixing points are arranged around the frame, which facilitates connection with other equipment. The bottom of the mounting frame 11 is provided with a bottom wheel 12, the bottom wheel 12 in the embodiment is four nylon wheels with brake function, which is convenient for moving and positioning and has the advantages of quietness and shock absorption. Each bottom wheel 12 is provided with a locking device to ensure that the equipment does not slide during work. The bottom of the mounting frame 11 is provided with an oil pan float 16. The oil pan float 16 in the embodiment is a magnetic sensor and is arranged below the vacuum flash tank 1, and the inside of the vacuum flash tank 1 can be provided with a minimum alarm liquid level and a maximum alarm liquid level to facilitate obtaining the lubricating oil liquid level information in the inside of the vacuum flash tank 1 from the outside.

[0048] The side of the installation frame 11 is provided with an electrical cabinet 13, and the installation frame 11 is provided with various control elements such as a PLC controller, a touch screen, a relay and the like in the electrical cabinet 13. The cabinet door can be made of transparent glass material to facilitate observation of the internal conditions. The cabinet body can also be provided with ventilation openings in front and back, and equipped with fans for forced cooling. The installation frame 11 located on the side of the electrical cabinet 13 is provided with a reinforcing rib 14, and the reinforcing rib 14 has high bearing capacity and is used to enhance the stability of the overall structure. The installation frame 11 is provided with a plurality of clearance holes 15 at the top, and the number and size of the clearance holes 15 can be flexibly adjusted. These holes can be used for threading, pipe threading or installing other components, and have strong adaptability.

[0049] The vacuum flash tank 1 is also connected with an oil inlet pipe 4, an oil outlet pipe 5, an exhaust unit 3, a vacuum pump 2, an oil inlet valve 41, an oil discharge pump 51, an oil discharge pipe 52, a circulation pipe 6 and a circulation valve 61 to jointly complete the circulation and water removal of the lubricating oil.

[0050] The vacuum pump 2 is fixed at the bottom of the installation frame 11 to maintain the negative pressure state inside the vacuum flash tank 1.

[0051] The exhaust unit 3 is connected with the vacuum flash tank 1 through an exhaust pipe 31, and the exhaust pipe 31 is connected with an exhaust valve 32. In this embodiment, the exhaust valve 32 is a manual ball valve, which is manually controlled. The handle has a scale mark for accurate control of the opening degree. The exhaust valve 32 is simple and reliable to operate, and can be manually opened or closed even in the case of power failure.

[0052] The oil inlet pipe 4 is connected at the bottom of the vacuum flash tank 1, and the oil inlet pipe 4 is connected with the oil inlet valve 41. During operation, the vacuum pump 2 is used to maintain the negative pressure state inside the vacuum flash tank 1, and then the oil inlet valve 41 is opened. Due to the negative pressure state of the vacuum flash tank 1, the lubricating liquid to be purified is sucked into the vacuum flash tank 1.

[0053] The oil outlet pipe 5 is also connected at the bottom of the vacuum flash tank 1, and the oil outlet pipe 5 is connected with the oil discharge pipe 52 through the oil discharge pump 51. The oil discharge pipe 52 is bent from the inside of the installation frame 11 and arranged upward, and finally connected with the circulation pipe 6 at the top of the installation frame 11. The circulation pipe 6 is connected with the circulation valve 61, and the end of the circulation pipe 6 away from the connection with the oil discharge pipe 52 extends into the vacuum flash tank 1 and is provided with a nozzle. The nozzle can be a spiral nozzle or a flat nozzle. The former is suitable for occasions where uniform dispersion of liquid is required, and the latter is suitable for scenes where concentrated injection is required.

[0054] The oil outlet pipe 5 is a steel pipe with moderate diameter, and the surface is treated for corrosion prevention. In addition, the oil discharge pipe 52 is connected with a filtering unit 53 at the top of the installation frame 11, which is used to further remove solid particles and other impurities in the lubricating oil. The filtering unit 53 includes a primary filter and a fine filter inside. The primary filter uses a filter core with a coarse pore size, which can effectively intercept large impurities; the fine filter uses a microporous filter membrane, which can remove finer contaminants. The shell of the primary filter is made of carbon steel, and the inner and outer surfaces are treated for corrosion prevention. The filter core is made of polypropylene melt-blown fiber, which has strong adsorption capacity and can be repeatedly washed. The shell of the fine filter is made of 316L stainless steel, which has excellent corrosion resistance and temperature resistance. The filter membrane is made of PTFE material with a pore size of 0.2 μm, which can effectively remove sub-micron particles.

[0055] The oil discharge pump 51 is controlled by frequency conversion, which can adjust the speed according to the actual flow demand. The inlet and outlet of the oil discharge pump 51 are provided with check valves to prevent backflow. The shell of the oil discharge pump 51 is made of cast iron, which is wear-resistant and durable. The oil discharge pump 51 is connected with an oil discharge circuit breaker, which is an overload protection device installed in the circuit of the oil discharge pump 51. When the working current of the oil discharge pump 51 exceeds the rated value, the oil discharge circuit breaker will immediately cut off the power supply to prevent the motor from burning out. The oil discharge circuit breaker uses electromagnetic tripping mechanism, which has fast response speed and high reliability. The shell of the oil discharge circuit breaker is made of flame-retardant ABS plastic, and the internal circuit layout is reasonable with good heat dissipation. The panel is provided with an indicator light to display the current working state (such as normal operation, fault alarm, etc.).

[0056] The oil discharge pipe 52 connects the oil discharge pump 51 and the circulating pipe 6, which is also made of PVC material with high temperature and pressure resistance. The oil discharge pipe 52 can be equipped with a pressure gauge to monitor the pressure in the pipe in real time. The circulating pipe 6 is connected with the oil discharge pipe 52 through a tee joint, which ensures high pressure-bearing capacity and long service life. The length and diameter of the circulating pipe 6 are selected according to the actual working condition to minimize the resistance in the circulating process. The circulating valve 61 is installed on the circulating pipe 6, which is an electric butterfly valve and can be operated by the remote control system. The opening of the circulating valve 61 can be freely adjusted within the range of 0% to 100%, which is convenient for accurate control of the circulation amount.

[0057] In the working process, the vacuum pump 2 is used to maintain the negative pressure state in the vacuum flash tank 1, and then the oil inlet valve 41 is opened. Due to the negative pressure state of the vacuum flash tank 1, the lubricating liquid to be purified is sucked into the vacuum flash tank 1. When the lubricating liquid in the bottom of the vacuum flash tank 1 reaches the set liquid level, the oil inlet valve 41 is closed, and the oil discharge pump 51 and the circulating valve 61 are opened. At this time, the lubricating liquid in the bottom of the vacuum flash tank 1 is pumped by the oil discharge pump 51 into the oil discharge pipe 52. When the lubricating oil flows through the connection between the oil discharge pipe and the circulating pipe 6, the circulating valve 61 is opened and the vacuum flash tank 1 is still in a negative pressure state, so that the discharged lubricating liquid flows into the circulating pipe 6 from the oil discharge pipe 52, and finally reflows into the oil inlet pipe 4 and is sprayed into the vacuum flash tank 1 through the nozzle, realizing water removal.

[0058] When the circulating valve 61 is in the open state, the oil discharge pump 51 continuously pumps the lubricating oil in the bottom of the vacuum flash tank 1 back to the oil discharge pipe 52, the circulating pipe 6 and finally back to the top of the vacuum flash tank 1 for re-water removal, realizing automatic circulation.

[0059] When the circulation time is set, the circulating pipe 6 valve is closed. When the lubricating oil flows through the connection between the oil discharge pipe and the circulating pipe 6, the circulating valve 61 is closed, so the lubricating liquid can be discharged from the end of the oil discharge pipe 52.

[0060] Then the oil inlet valve 41 is opened again to suck the subsequent lubricating liquid to be purified into the vacuum flash tank 1, and the circulating pipe 6 is opened for subsequent water removal and purification of the lubricating liquid.

[0061] This design not only improves the water removal efficiency, but also reduces the investment cost and floor area of the equipment, and is very suitable for large-scale industrial applications.

[0062] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An oil purifying device comprising a vacuum flash tank (1) to which a vacuum pump (2) is further connected for maintaining a negative pressure state inside the vacuum flash tank (1), the top of the vacuum flash tank (1) is connected with an exhaust unit (3), characterized in that: The bottom of the vacuum flash tank (1) is connected with an oil inlet pipe (4), the oil inlet pipe (4) is connected with an oil inlet valve (41), the bottom of the vacuum flash tank (1) is connected with an oil outlet pipe (5), the oil outlet pipe (5) is connected with an oil outlet pipe (52) through an oil outlet pump (51), the oil outlet pipe (52) is connected with a circulating pipe (6), the circulating pipe (6) is connected with a circulating valve (61), the end of the circulating pipe (6) extends into the vacuum flash tank (1) and is provided with a nozzle.

2. The oil purifier according to claim 1, characterized in that: The oil outlet pipe (52) is connected with a filter unit (53).

3. The oil purifier of claim 1, wherein: The exhaust unit (3) is connected with the vacuum flash tank (1) through an exhaust pipe (31), the exhaust pipe (31) is connected with an exhaust valve (32).

4. The oil purifier of claim 1, wherein: The oil outlet pump (51) is connected with an oil outlet breaker.

5. The oil purification apparatus according to claim 1, characterized by: The bottom of the vacuum flash tank (1) is provided with a mounting frame (11), the bottom of the mounting frame (11) is provided with a bottom wheel (12).

6. The oil purification apparatus according to claim 5, characterized by: The side of the mounting frame (11) is provided with an electrical cabinet (13), the mounting frame (11) located on one side of the electrical cabinet (13) is provided with a reinforcing rib (14).

7. The oil purification apparatus according to claim 5, characterized by: The top of the mounting frame (11) is provided with a plurality of clearance holes (15).

8. The oil purification apparatus according to claim 1, characterized by: The vacuum flash tank (1) is provided with an oil pan float (16).

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