Vacuum separation system and oil filter

Abstract

The invention discloses a vacuum separation system and an oil filter, the vacuum separation system comprises a vacuum tank, the outer part of the vacuum tank is sleeved with a thermal insulation sleeve, and the interior of the thermal insulation sleeve is hollow; the vacuum tank is connected with a heater and a circulating pump through pipelines to form an oil pumping loop; a heat preservation liquid pumping mechanism is arranged on the heat preservation chamber, and a liquid outlet of the heat preservation liquid pumping mechanism is communicated with the interior of the heat preservation sleeve through a pipeline to form a heat preservation loop; in the oil pumping stage, heat exchange is formed between the heat preservation loop and the oil pumping loop. The oil pumping loop and the heat preservation loop are formed in the vacuum tank and the heat preservation chamber correspondingly, and heat exchange is formed between the heat preservation loop and the oil pumping loop in the oil pumping stage, so that the heat preservation loop can preheat the oil pumping loop and the vacuum tank, heat preservation operation is conducted on the vacuum tank in the oil pumping stage, and the heat preservation efficiency is improved. And the dynamic balance of the temperature required in the vacuum tank is effectively maintained.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange of oil filters, and in particular relates to a vacuum separation system and an oil filter. Background Art

[0002] Vacuum oil filter can efficiently remove free water and solid pollutants from hydraulic oil, lubricating oil, turbine oil and other oil products, and can also bypass or purify the oil separately as needed. Vacuum oil filter is widely used in petrochemical, petroleum, coal, electric power, military machinery and other industries. It is a special equipment for removing water and gas from oil, and can effectively prevent the mixing of water and mechanical impurities in the oil used in machinery during transportation, storage and use.

[0003] The existing oil filter machine circulates and heats the oil through a heater during circulating pump oil treatment. However, there is a lack of a preheating stage during the initial oil pumping, which prolongs the overall circulating pump oil heating process time. After reaching the temperature, it is difficult to effectively insulate the vacuum tank, and the heater needs to be repeatedly controlled to open and close, making the temperature control operation difficult.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a vacuum separation system. An oil pumping circuit and a thermal insulation circuit are respectively set up in a vacuum tank and an insulation chamber. During the oil pumping stage, heat exchange is formed between the thermal insulation circuit and the oil pumping circuit, so that the thermal insulation circuit can preheat the oil pumping circuit and the vacuum tank, and the vacuum tank is insulated during the oil pumping stage, thereby effectively maintaining the dynamic balance of the required temperature in the vacuum tank.

[0006] Another object of the present invention is to provide an oil filter.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: to provide a vacuum separation system, including a vacuum tank, the outer shell of which is provided with a heat preservation sleeve, and the inner part of the heat preservation sleeve is hollow; the vacuum tank is connected to a heater and a circulation pump through a pipeline to form a pump oil circuit; The insulation chamber is provided with an insulation pump mechanism, the liquid outlet of which is connected with the inside of the insulation sleeve through a pipeline to form an insulation circuit; in the oil pumping stage, heat exchange is formed between the insulation circuit and the oil pumping circuit.

[0008] Furthermore, the liquid outlet of the insulation chamber is located at the top thereof; The heat preservation pump liquid mechanism includes: A lifting plate is vertically movable and arranged in the insulation chamber; The screw mechanism has a driving end connected to the lifting plate and is used to drive the lifting plate to move vertically.

[0009] Furthermore, the screw mechanism comprises: The screw assembly at least comprises a screw and a threaded sleeve with threaded matching, one end of the threaded sleeve passes through the insulation chamber and is connected to the lifting plate, and the other end is connected to the motor; The guide assembly at least comprises a guide column and a guide sleeve which are slidably matched with each other, and one end of the guide sleeve passes through the insulation chamber and is connected with the lifting plate.

[0010] Furthermore, a defoaming mechanism is provided inside the vacuum tank to eliminate the foam inside the vacuum tank; The defoaming mechanism at least comprises a defoaming needle which can rotate vertically, and the defoaming needle extends downward along the axial direction of the vacuum tank and is bent into shape.

[0011] Furthermore, a sealing plate is provided in the vacuum tank to separate the vacuum tank into upper and lower parts; A rotating plate for sealing and rotating is arranged at the center of the sealing plate, and the defoaming needle is connected to the bottom of the rotating plate; The rotating plate is hollow inside, and a first exhaust hole and a second exhaust hole are respectively provided on a top side wall and a bottom side wall of the rotating plate.

[0012] Furthermore, a first temperature sensor is arranged on the top of the vacuum tank, and a second temperature sensor is arranged on the side wall of the thermal insulation sleeve.

[0013] The present invention also provides an oil filter having any of the above-mentioned vacuum separation systems, wherein the oil filter comprises: A condenser, connected to the vacuum tank through a pipeline, is used to condense water vapor; The vacuum pump is connected to the condenser through a pipeline and is used to extract the condensed exhaust gas.

[0014] Furthermore, the oil filter also includes an oil inlet pump, an oil outlet pump and a filtering system, and the oil inlet pump, the filtering system, the heater, the vacuum tank and the oil outlet pump form an oil pump circuit as a whole.

[0015] Furthermore, the oil filter also includes an oil storage tank, which is connected to the vacuum tank through a pipeline and is used to store the treated oil.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: (1) The present invention forms an oil pumping circuit and a heat preservation circuit in the vacuum tank and the heat preservation chamber respectively. During the oil pumping stage, heat exchange is formed between the heat preservation circuit and the oil pumping circuit, so that the heat preservation circuit can preheat the oil pumping circuit and the vacuum tank, and the vacuum tank is kept warm during the oil pumping stage, thereby effectively maintaining the required dynamic balance of temperature in the vacuum tank.

[0017] (2) The present invention provides a defoaming mechanism inside the vacuum tank, and the defoaming needle is bent as a whole. During the overall rotation process, the foam in the vacuum tank can be processed to prevent the corresponding solenoid valve from being disturbed by the liquid level and causing erroneous operation.

[0018] (3) The present invention provides a rotatable rotating plate on the sealing plate, a defoaming needle is provided at the bottom of the rotating plate, and the rotating plate has a first exhaust hole and a second exhaust hole. Under the action of rotating centrifugation, heavier oil and gas will return to the bottom of the vacuum tank, while lighter water vapor and the like will be transported to the subsequent condensation tank through the exhaust hole at the top of the vacuum tank, thereby avoiding waste of oil products.

[0019] (4) The present invention provides a first temperature sensor and a second temperature sensor on the vacuum tank and the insulation sleeve to compare the temperature between the insulation circuit and the pump oil circuit to determine whether the motor and the heater of the insulation pump liquid mechanism are started, so that heat is always transferred between the two circuits during the heat exchange process.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings: Figure 1 It is a schematic diagram of the right side of the shaft of the oil filter of the present invention; Figure 2 It is a schematic diagram of the left side of the shaft of the oil filter of the present invention; Figure 3 It is a schematic front view of the shaft of the oil filter of the present invention; Figure 4 It is a schematic diagram of the internal structure of the vacuum tank of the present invention; Figure 5 It is a schematic diagram of the defoaming mechanism of the present invention.

[0022] In the figure: 1, frame; 2, insulation chamber; 3, insulation pump liquid mechanism; 31, motor; 32, screw rod; 33, threaded sleeve; 34, guide column; 35, guide sleeve; 36, lifting plate; 4, filter tank; 5, heater; 6, vacuum tank; 7, oil storage tank; 8, meshing assembly; 9, first gear pump; 10, second gear pump; 11, condensation tank; 12, vacuum pump; 13, circulation pump; 14, oil inlet pump; 15, oil outlet pump; 16, defoaming mechanism; 161, sealing plate; 162, rotating plate; 163, defoaming needle; 1621a, first exhaust hole; 1621b, second exhaust hole; 17, insulation sleeve.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figures 1 to 5 As shown, a vacuum separation system according to the present invention comprises: The vacuum tank 6 is provided with a heat-insulating sleeve 17 on the outside, and the heat-insulating sleeve 17 is hollow inside; the vacuum tank 6 is connected to the heater 5 and the circulating pump 13 through a pipeline to form a pump oil circuit; The insulation chamber 2 is provided with an insulation pumping mechanism 3, the liquid outlet of which is connected to the inside of the insulation sleeve 17 through a pipeline to form an insulation circuit; in the oil pumping stage, heat exchange is formed between the insulation circuit and the oil pumping circuit.

[0028] In the present invention, the bottom of the vacuum tank 6 is vertically arranged on the frame 1 of the oil filter through a bracket, wherein the vacuum tank 6 is divided into a double vacuum tank 6 with a compound evaporation structure by a vertical tank body, and is composed of an atomizer, an evaporator, a separation chamber, an oil collection tank, a vacuum chamber, and an observation window. Among them, the components of the vacuum tank 6 need to be explained as follows: the atomizer atomizes the oil entering the vacuum separation chamber and sprays it onto the evaporator. The evaporator: adopts a compound three-dimensional evaporation structure, adopts a full stainless steel degassing and dehydration separation tower, and has a large separation area, so that the oil product can be maximized into a thin film, and three-dimensional evaporation is achieved in the vacuum separation chamber; the exposure time of the oil in the vacuum chamber is greatly increased, so as to achieve the best dehydration and degassing effect, and ensure the best effect of one-time separation. The separation chamber: located between the evaporator and the oil collection tank, when the oil runs in this interval, the water, gas, and oil are separated again. The oil collection tank: gathers the oil separated from the water and gas, and discharges it by the oil discharge pump. Vacuum chamber: extract the water vapor and residual gas separated in the separation chamber from the separation chamber to prevent the water and gas from re-dissolving in the oil. Observation window: use tempered glass to replace organic glass as the observation window to eliminate the defects of concave deformation under high temperature and high vacuum conditions.

[0029] In addition, a heat preservation sleeve 17 is provided on the outside of the vacuum tank 6, wherein the heat preservation sleeve 17 has a hollow chamber in the shape of a ring inside. A water inlet and a water outlet are provided on the heat preservation sleeve 17. A heat preservation chamber 2 is also provided on the frame 1 of the oil filter, wherein the heat preservation pump liquid mechanism 3 provided in the heat preservation chamber 2 has a liquid outlet connected to the water inlet of the heat preservation sleeve 17 through a pipeline to form a water inlet channel; similarly, a liquid inlet is provided on the heat preservation chamber 2, and its liquid inlet is connected to the water outlet of the heat preservation sleeve 17 through a pipeline to form a water outlet channel. Thus, the water inlet channel is connected to the water outlet channel and the hollow chamber in the heat preservation sleeve 17 to form a heat preservation circuit for the circulation of the entire heat preservation water. The vacuum tank 6 is connected to the heater 5 and the circulating pump 13 through a pipeline to form an oil pumping circuit. During the oil pumping stage, the heat preservation circuit and the oil pumping circuit can control the flow of liquid in each circuit so that the heat preservation circuit can preheat the oil pumping circuit and the vacuum tank 6. The vacuum tank 6 can be kept warm at all times during the oil pumping stage, thereby effectively maintaining the required dynamic balance of temperature in the vacuum tank 6.

[0030] In addition, the heater 5 adopts electric heating and is equipped with sufficient heating power to reach the required temperature for dehydration at the fastest speed.

[0031] Furthermore, the liquid outlet of the insulation chamber 2 is located at the top thereof; The heat preservation pumping liquid mechanism 3 comprises: A lifting plate 36 is vertically movable and arranged in the insulation chamber 2; The screw rod 32 mechanism, whose driving end is connected to the lifting plate 36, is used to drive the lifting plate 36 to move vertically. In the present invention, the liquid inlet and liquid outlet of the insulation chamber 2 are both arranged on the top side wall thereof, that is, the water inlet and outlet actions in the insulation chamber 2 are all performed from the top of the insulation chamber 2. In the insulation pumping mechanism 3 arranged inside the insulation chamber 2, its lifting plate 36 is located at its bottom at the initial stage, and is arranged in the insulation chamber 2 by sliding through the lifting plate 36, and the outer wall of the lifting plate 36 is sealed and fitted with the inner wall of the insulation chamber 2. The insulation chamber 2 is filled with insulation liquid. The screw rod 32 mechanism is arranged at the top of the insulation chamber 2, and its driving end extends into the interior of the insulation chamber 2 and is connected to the lifting plate 36, so that the lifting plate 36 can be driven to pump the insulation liquid from the water outlet at the top of the insulation chamber 2 through the pipeline into the hollow chamber of the insulation sleeve 17, and the insulation liquid can preheat the vacuum tank 6 in advance, thereby having a certain insulation effect. When insulation or preheating is not needed, the lifting plate 36 is driven to move downward, so that the insulation liquid can be pumped back into the insulation chamber 2.

[0032] Further, the screw rod 32 mechanism includes: The screw rod 32 assembly at least includes a screw rod 32 and a threaded sleeve 33 with threaded matching, one end of the threaded sleeve 33 passes through the insulation chamber 2 and is connected to the lifting plate 36, and the other end is connected to the motor 31; The guide assembly at least comprises a guide post 34 and a guide sleeve 35 which are slidably matched with each other. One end of the guide sleeve 35 passes through the insulation chamber 2 and is connected to the lifting plate 36 .

[0033] In the present invention, a bracket for supporting the screw rod 32 mechanism is provided on the top of the heat preservation chamber 2, and a screw rod 32 and a threaded sleeve 33 are provided on the bracket, wherein one end of the screw rod 32 passes through the bracket and is connected to the motor 31, and the other end of the screw rod 32 is threadedly connected to the threaded sleeve 33. Two through holes are provided through the top of the heat preservation chamber 2, and the threaded sleeve 33 slides through one of the through holes and is connected to the lifting plate 36 in the heat preservation chamber 2. A guide assembly is provided on one side parallel to the screw rod 32, wherein one end of the guide column 34 is fixedly connected to the bracket, and the other end thereof extends into the guide sleeve 35 and is slidably connected thereto, and the guide sleeve 35 slides through another through hole and is connected to the lifting plate 36. By utilizing the cooperation of the screw rod 32 assembly and the guide assembly, the vertical reciprocating movement of the lifting plate 36 can be stably realized, so that the heat preservation liquid in the heat preservation sleeve 17 can be extracted and discharged, and the overall liquid circulation flow can be controlled, and then effective heat exchange can be performed with the vacuum tank 6.

[0034] Furthermore, a defoaming mechanism 16 is provided inside the vacuum tank 6 to eliminate the foam inside the vacuum tank 6; The defoaming mechanism 16 at least includes a defoaming needle 163 that can rotate vertically. The defoaming needle 163 extends downward along the axial direction of the vacuum tank 6 and is bent into shape.

[0035] In the present invention, a defoaming mechanism 16 is provided at a position near the upper end of the vacuum tank 6, and at least has a defoaming needle 163 that can rotate around the vertical axis in the vacuum tank 6. Since the defoaming needle 163 is L-shaped as a whole, the foam in the vacuum tank 6 can be processed during the overall rotation process, preventing the corresponding solenoid valve from being disturbed by the liquid level and causing malfunction.

[0036] It should be noted that the more water content in the oil, the more water vapor there is. The surface tension of the oil is large, and a large amount of foam will be formed in a high vacuum, gradually rising, and eventually being sucked into the condenser and pumped out by the vacuum pump 12, forming an "oil spray" phenomenon.

[0037] In addition, an air intake solenoid valve and an air charging solenoid valve can be provided on the vacuum tank 6. When the foam rises, once the signal reception is blocked, the air intake solenoid valve will automatically open and charge, causing the vacuum degree to decrease, and the foam to decrease accordingly. When the signal can be received again, the air charging solenoid valve will be closed for 3-5 seconds before stopping charging (the delay time can be adjusted between 0.1 and 30 seconds). This is double coordinated with the above-mentioned defoaming needle 163, so as to effectively avoid the influence of the foam in the vacuum tank 6 on the subsequent condensation operation.

[0038] Furthermore, a sealing plate 161 is provided in the vacuum tank 6 to separate the vacuum tank 6 into upper and lower parts; A rotating plate 162 for sealing and rotating is provided at the center of the sealing plate 161, and a defoaming needle 163 is connected to the bottom of the rotating plate 162; The rotating plate 162 is hollow inside, and a first exhaust hole 1621 a and a second exhaust hole 1621 b are respectively formed on a top side wall and a bottom side wall of the rotating plate 162 .

[0039] In the present invention, a transversely arranged sealing plate 161 is provided in the vacuum tank 6, and a through rotating hole is provided at the central position of the sealing plate 161, and a rotating plate 162 is rotatably connected to the rotating hole, and a hollow chamber is provided in the rotating plate 162. A plurality of through holes are provided on the bottom side wall of the rotating plate 162, and each through hole is connected to the hollow chamber. The upper end side wall of the rotating plate 162 is also provided with a through hole connected to the hollow chamber, so as to ensure that the separated water vapor flows from one end of the sealing plate 161 to the air outlet of the vacuum tank 6. In addition, when the oil gas and water vapor enter the rotating plate 162 through the through hole at the bottom, under the action of the rotating centrifugal force, the heavier oil gas will return to the bottom of the vacuum tank 6, while the lighter water vapor will be transported to the subsequent condensation tank 11 through the air outlet at the top of the vacuum tank 6.

[0040] Furthermore, a first temperature sensor is disposed on the top of the vacuum tank 6 , and a second temperature sensor is disposed on the side wall of the thermal insulation sleeve 17 .

[0041] In the present invention, a first temperature sensor is provided at the air outlet of the top of the vacuum tank 6, and a second temperature sensor is provided at the water outlet pipe of the insulation sleeve 17. By comparing the temperature data of the first temperature sensor and the second temperature sensor in real time, the temperature of the insulation circuit and the pump oil circuit is compared to determine whether the motor 31 of the insulation pump mechanism 3 and the heater 5 are started, so that during the heat exchange process, there is always heat transfer between the two circuits.

[0042] The present invention also discloses an oil filter having the vacuum separation system in any of the above embodiments, the oil filter comprising: A condenser, connected to the vacuum tank 6 through a pipeline, for condensing water vapor; The vacuum pump 12 is connected to the condenser through a pipeline and is used to extract the condensed exhaust gas.

[0043] In the present invention, the frame 1 in the oil filter is also provided with a condenser connected to the vacuum tank 6 and a vacuum pump 12. It should be noted that the water vapor extracted from the vacuum separation system is quickly condensed into water, stored in the water collecting tank and discharged outside the machine, so as to prevent a large amount of water vapor from directly entering the vacuum pump 12, causing the vacuum pump 12 oil to emulsify, reducing the number of times the vacuum pump 12 oil is replaced, thereby extending the service life of the vacuum pump 12.

[0044] Furthermore, the oil filter machine also includes an oil inlet pump 14, an oil outlet pump 15 and a filtering system. The oil inlet pump 14, the filtering system, the heater 5, the vacuum tank 6 and the oil outlet pump 15 form an oil pumping circuit as a whole.

[0045] In the present invention, the filtration system includes a plurality of filter tanks 4, and a pressure protection device is provided between the pipes between the filter tanks 4. Specifically, an overpressure overflow automatic alarm shutdown protection device is provided, which can automatically shut down when the system or fine filter element pressure is ≥ 0.5Mpa, thereby effectively protecting the whole machine and the filter element, and can realize unattended operation.

[0046] The filter element's contamination level is automatically detected, and a filter element replacement indicator and filter element saturation shutdown device are provided to remind the operator to clean or replace the filter element in time to prevent overpressure from damaging the filter element and increasing the cost of use, thus ensuring the safety of the filtration system.

[0047] Filtration system configuration: The coarse filter removes large particles of impurities in the oil to protect the oil pump from being damaged by large particles of impurities. It is a stainless steel filter element that can be cleaned and used repeatedly; the fine filter is made of imported polymer filter material. The mesh of the filter element gradually becomes finer from the outside to the inside and is denser step by step, so that larger particles are blocked in the outer layer and mechanical impurities in the oil are intercepted step by step. The filter element has high filtration efficiency, and the filtration area of ​​the filter element is 20 times the rated flow rate. It has strong dirt holding capacity and long service life, which reduces replacement cycle and operating costs. The filtration accuracy can reach 3µm.

[0048] The entire oil filter machine inputs treated oil through the oil inlet pump 14, and discharges the treated oil through the oil outlet pump 15. Specifically, the oil pump uses a gear pump, and the stator, rotor gear, shaft and bearings of the oil pump are made of high-strength special steel, which can withstand the stress generated by high-viscosity and high-pressure difference media. It is suitable for working in a high vacuum environment and has good self-priming ability, uniform flow, no pulsation, low noise and long service life. In addition, the pipeline of the oil outlet pump 15 is equipped with an anti-oil backflow safety device to ensure that the oil does not flow back in the event of a sudden shutdown and to ensure the normal oil level of the oil tank. The oil inlet and outlet are equipped with an automatic liquid level control device to achieve automatic balance adjustment of the inlet and outlet oil, and the constant oil filtration system achieves the purpose of human-machine separation.

[0049] Furthermore, the oil filter also includes an oil storage tank 7, which is connected to the vacuum tank 6 through a pipeline and is used to store the treated oil.

[0050] In the present invention, an oil storage tank 7 for storing the treated oil is also provided on the frame 1 of the oil filter, and the oil storage tank 7 is controlled to perform liquid infusion with the vacuum tank 6 through a solenoid valve.

[0051] Furthermore, a meshing assembly 8 is provided on the vacuum tank 6, including two bevel gears meshing with each other, and a first gear pump 9 is provided at the pipeline between the vacuum tank 6 and the condensation tank 11, and the first gear pump 9 is driven by the gas discharged from the vacuum tank 6, wherein the rotating shaft of one bevel gear is connected to the rotating shaft of the first gear pump 9, and the other bevel gear is connected to the rotating plate 162 inside the vacuum tank 6, so that in the process of discharging water vapor exhaust gas, the two bevel gears mesh with each other to drive the rotating plate 162 to rotate, and then the defoaming needle 163 can be used to effectively eliminate the internal foam, that is, the separation of oil gas and water vapor can be improved.

[0052] Furthermore, by arranging a second gear pump 10 at the pipeline between the thermal insulation sleeve 17 and the thermal insulation chamber 2, the rotating shaft of the second gear pump 10 is arranged coaxially with the first gear pump 9. During the exhaust process of the vacuum tank 6, the second gear pump 10 can be driven to drive the liquid in the thermal insulation sleeve 17 to be drawn into the thermal insulation chamber 2.

[0053] Specific working principle: Under the action of the oil inlet pump 14, the oil to be treated passes through the pipeline into multiple filter tanks 4 in the filtration system to filter out coarse impurities, and then is heated on the heater 5, and then enters the vacuum tank 6. When the oil reaches a high liquid level inside the vacuum tank 6, the oil inlet pump 14 stops working, the oil inlet solenoid is closed, and then the circulation solenoid valve is opened, and the internal circulation oil pump starts working.

[0054] In this process, the hot oil heated by the heater 5 is sprayed from the spray pipe into a coarse mist and gradually distributed on the reflection ring, forming a three-dimensional multi-faceted evaporation body within a three-dimensional range. If the vacuum degree is -0.09MPa at this time, and the boiling point of water is only about 50°C, and the oil has been heated and stabilized at 60°C, the water in the oil boils and escapes, and the oil and water are separated. Most of the water vapor enters the condenser and condenses into water droplets. The remaining water vapor and harmful gases in the oil are discharged by the vacuum pump 12. After multiple cycles, when the data reaches the set data, the internal circulation valve is closed, and the treated oil is temporarily stored in the oil storage tank 7 through the solenoid valve.

[0055] In order to ensure that the oil in the oil storage tank 7 is not damp, nitrogen is filled on the upper part of the oil storage tank 7, and the pressure is stabilized at 0.3 to 0.5 MPa. When it is necessary to fill the filling machine with oil, the oil outlet pump 15 can be started to pump liquid, and the oil outlet valve can be opened.

[0056] If the stored oil cannot meet the requirements due to long storage time, it can be reprocessed to meet the use requirements.

[0057] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A vacuum separation system, characterized in that: include, The vacuum tank is provided with a heat-insulating sleeve on the outside, and the heat-insulating sleeve is hollow inside; the vacuum tank is connected to a heater and a circulating pump through a pipeline to form a pump oil loop; The insulation chamber is provided with an insulation pump mechanism, the liquid outlet of which is connected with the inside of the insulation sleeve through a pipeline to form an insulation circuit; in the oil pumping stage, heat exchange is formed between the insulation circuit and the oil pumping circuit.

2. A vacuum separation system according to claim 1, characterized in that: The liquid outlet of the insulation chamber is located at the top thereof; The heat preservation pump liquid mechanism includes: A lifting plate is vertically movable and arranged in the insulation chamber; The screw mechanism has a driving end connected to the lifting plate and is used to drive the lifting plate to move vertically.

3. A vacuum separation system according to claim 2, characterized in that: The screw mechanism includes: The screw assembly at least comprises a screw and a threaded sleeve with threaded matching, one end of the threaded sleeve passes through the insulation chamber and is connected to the lifting plate, and the other end is connected to the motor; The guide assembly at least comprises a guide column and a guide sleeve which are slidably matched with each other, and one end of the guide sleeve passes through the insulation chamber and is connected with the lifting plate.

4. A vacuum separation system according to claim 3, characterized in that: A defoaming mechanism is provided inside the vacuum tank to eliminate the foam inside the vacuum tank; The defoaming mechanism at least comprises a defoaming needle which can rotate vertically, and the defoaming needle extends downward along the axial direction of the vacuum tank and is bent into shape.

5. A vacuum separation system according to claim 4, characterized in that: A sealing plate is provided inside the vacuum tank to separate the vacuum tank into upper and lower parts; A rotating plate for sealing and rotating is arranged at the center of the sealing plate, and the defoaming needle is connected to the bottom of the rotating plate; The rotating plate is hollow inside, and a first exhaust hole and a second exhaust hole are respectively provided on a top side wall and a bottom side wall of the rotating plate.

6. A vacuum separation system according to any one of claims 1 to 5, characterized in that: A first temperature sensor is arranged on the top of the vacuum tank, and a second temperature sensor is arranged on the side wall of the thermal insulation sleeve.

7. An oil filter, characterized in that: It comprises a vacuum separation system according to any one of claims 1 to 6, wherein the oil filter comprises: A condenser, connected to the vacuum tank through a pipeline, for condensing water vapor; The vacuum pump is connected to the condenser through a pipeline and is used to extract the condensed exhaust gas.

8. An oil filter according to claim 7, characterized in that: The oil filter also includes an oil inlet pump, an oil outlet pump and a filtering system. The oil inlet pump, the filtering system, the heater, the vacuum tank and the oil outlet pump form an oil pumping circuit as a whole.

9. An oil filter according to claim 8, characterized in that: The oil filter also includes an oil storage tank, which is connected to the vacuum tank through a pipeline and is used to store the treated oil.

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