A vacuum oil filtration device

Abstract

This invention provides a vacuum oil filtration device. The vacuum pump and vacuum pipeline create a vacuum in the oil storage chamber, achieving a negative pressure state. Since the pressure above the filter screen is atmospheric, higher than the pressure inside the oil storage chamber, the oil on the filter screen is forced through the atmospheric pressure, thus improving filtration efficiency. An oil return tank is located on the main section of the vacuum pipeline, allowing oil to fall into it as it flows along the vacuum pipeline. This prevents oil from continuing to move along the pipeline into the vacuum pump, thus preventing damage to the vacuum pump from oil corrosion during the evacuation process in the oil storage chamber, extending the pump's lifespan and reducing maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of oil purification and filtration technology, and in particular to a vacuum oil filtration device. Background Technology

[0002] In the field of oil purification, vacuum oil filtration devices are widely used as key equipment for efficiently separating impurities, and are applied to the filtration of edible oils, industrial oils, and other oil products. Traditional oil filtration technologies mostly rely on gravity sedimentation or mechanical pressure filtration, but these methods generally suffer from low filtration efficiency and high energy consumption. Especially when processing high-viscosity oils, filter clogging occurs frequently, leading to frequent equipment shutdowns for maintenance.

[0003] While existing technologies employ vacuum negative pressure principles for oil filtration, creating a pressure difference by reducing the pressure in the oil storage chamber to accelerate filtration, these devices still have significant drawbacks in practical applications. Firstly, during continuous vacuum pumping, oil mist or tiny oil droplets can easily be drawn back into the pump body with the vacuum airflow, causing corrosion and lubrication failure of internal components and significantly shortening the equipment's lifespan. Secondly, unseparated oil residue remaining in the vacuum pipeline not only increases system air resistance, affecting vacuum stability, but also necessitates disassembly and cleaning of the entire pipeline during subsequent maintenance, significantly increasing operation and maintenance costs.

[0004] Therefore, there is an urgent need to develop a vacuum oil filtration device that can improve oil filtration efficiency, effectively prevent oil backflow, and extend the service life of vacuum pumps, in order to break through the existing technological bottlenecks. Utility Model Content

[0005] In view of the above problems, this utility model is proposed to provide a vacuum oil filtration device that overcomes or at least partially solves the above problems. It can solve the problem that the vacuum pump is easily corroded by oil during the oil filtration process of existing vacuum filtration equipment, thereby improving the service life of the equipment and the efficiency of oil filtration.

[0006] Specifically, this utility model provides a vacuum oil filtration device, which includes:

[0007] Frame;

[0008] An oil filter barrel is provided with an oil inlet at the upper end and an oil outlet pipe connected to the bottom; a filter screen is provided inside the oil filter barrel, and the filter screen and the bottom of the oil filter barrel form an oil storage chamber.

[0009] A vacuum mechanism, comprising a vacuum pump and a vacuum pipeline; the vacuum pump is mounted on the frame; one end of the vacuum pipeline is connected to the vacuum pump, and the other end is connected to the oil storage chamber;

[0010] The oil return tank is located on the frame and is connected to the vacuum tube.

[0011] Optionally, the number of oil filter tanks is two; the vacuum pipeline includes a main pipeline and two auxiliary pipelines;

[0012] One end of the main pipeline is connected to the vacuum pump, and the other end is connected to the return oil tank; one end of the auxiliary pipeline is connected to the oil storage chamber of the oil filter tank, and the other end is connected to the return oil tank.

[0013] Optionally, an oil baffle is provided inside the oil filter barrel; the oil baffle is fixedly installed on the inner wall of the oil filter barrel; the oil baffle is located below the filter screen and above the connection port between the vacuum pipe and the oil storage chamber.

[0014] Optionally, a support frame is provided inside the oil filter tank; the filter screen is placed on the support frame.

[0015] Optionally, the support frame includes a support ring and a plurality of support rods; the support ring is coaxially arranged with the oil filter tank and fixedly connected to the inner wall of the oil filter tank; the plurality of support rods are fixedly arranged inside the support ring.

[0016] Optionally, an oil outlet valve is provided on the oil outlet pipe.

[0017] Optionally, the secondary pipeline is connected to a pressure relief pipe; the pressure relief pipe and the secondary pipeline are connected to the oil storage chamber through a tee pipe; a pressure relief valve is provided on the pressure relief pipe; and a vacuum valve is provided on the secondary pipeline.

[0018] Optionally, the oil filter tank is provided with an observation window; the observation window is used to monitor the amount of oil in the oil storage chamber in real time.

[0019] In this vacuum oil filtration device, the vacuum pump and vacuum pipeline create a vacuum in the oil storage chamber, resulting in a negative pressure state. Since the area above the filter screen is under atmospheric pressure, which is greater than the pressure inside the oil storage chamber, the oil on the filter screen is forced through the atmospheric pressure, thus improving the filtration efficiency.

[0020] Furthermore, the return oil tank is located on the main line of the vacuum pipeline, so that the oil falls into the return oil tank when it flows along the vacuum gas flow in the vacuum pipeline, preventing the oil from continuing to move backward along the vacuum pipeline into the vacuum pump. This prevents the vacuum pump from being corroded and damaged by the oil when the vacuum pipeline evacuates the oil storage chamber, thereby improving the service life of the vacuum pump and reducing maintenance costs.

[0021] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0022] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0023] Figure 1 This is a schematic structural diagram of a vacuum oil filtration device according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 A magnified view of a section at point B in the middle;

[0025] Figure 3 This is a schematic partial structural diagram of a vacuum oil filtration device according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic top view of the oil filter barrel in a vacuum oil filtration device according to an embodiment of the present invention;

[0027] Figure 5 yes Figure 4 Sectional view at point AA.

[0028] In the diagram: 100, frame; 200, oil filter tank; 210, filter screen; 220, support frame; 230, oil storage chamber; 240, oil outlet pipe; 241, oil outlet valve; 250, oil baffle plate; 260, observation window; 310, vacuum pump; 320, vacuum pipe; 321, main pipe; 322, auxiliary pipe; 323, pressure relief pipe; 330, pressure relief valve; 340, vacuum valve; 350, vacuum motor; 400, return oil tank. Detailed Implementation

[0029] The following reference Figures 1 to 5 This description pertains to a vacuum oil filtration device according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0030] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Figure 1 This is a schematic structural diagram of a vacuum oil filtration device, such as... Figure 1 As shown, and with reference Figures 2 to 5 This utility model provides a vacuum oil filtration device, which includes a frame 100, an oil filter tank 200, a vacuum mechanism, and an oil return tank 400. The oil filter tank 200 has an oil inlet at its upper end and an oil outlet pipe 240 connected to its bottom. A filter screen 210 is installed inside the oil filter tank 200, forming an oil storage chamber 230 with the bottom of the tank. The vacuum mechanism includes a vacuum pump 310 and a vacuum pipe 320. The vacuum pump 310 is mounted on the frame 100, and one end of the vacuum pipe 320 is connected to the vacuum pump 310, while the other end is connected to the oil storage chamber 230. The oil return tank 400 is mounted on the frame 100 and connected to the vacuum pipe.

[0034] Specifically, the circumferential edge of the filter screen 210 is in sealed contact with the inner circumferential wall of the oil filter tank 200. The oil to be filtered passes through the filter screen 210 and enters the oil storage chamber 230, thus achieving oil filtration. Furthermore, the installation of the vacuum pump 310 and vacuum pipeline 320 causes the oil storage chamber 230 to be evacuated under the action of the vacuum pump 310, thereby achieving a negative pressure state within the oil storage chamber 230. Since the pressure above the filter screen 210 is atmospheric pressure, which is greater than the air pressure inside the oil storage chamber 230, the oil on the filter screen 210 is filtered by the filter screen 210 under atmospheric pressure, thereby improving the oil filtration efficiency.

[0035] Furthermore, the return oil tank 400 is located on the main line of the vacuum pipeline 320, so that the oil falls into the return oil tank 400 when the vacuum pipeline 320 flows along the vacuum airflow, preventing the oil from continuing to move backward along the vacuum pipeline 320 into the vacuum pump 310. This prevents the vacuum pump 310 from being corroded and damaged by the oil when the vacuum pipeline 320 evacuates the oil storage chamber 230, thereby improving the service life of the vacuum pump 310 and reducing maintenance costs.

[0036] During operation, to improve the quality of filtered oil, a filter cloth can be laid on the filter screen 210. The oil outlet pipe 240 is closed. The oil to be filtered is then introduced onto the filter screen 210, and the vacuum pump 310 is started. The vacuum pump 310 creates a vacuum in the oil storage chamber 230 through the vacuum pipe 320, resulting in a negative pressure state within the oil storage chamber 230. Under the action of negative pressure, the oil on the filter screen 210 is squeezed onto the filter screen 210, thus allowing the filtered oil to enter the oil storage chamber 230. Simultaneously, when oil enters the vacuum pipe 320, it moves along the vacuum pipe 320 towards the vacuum pump 310 under the influence of the vacuum airflow. When the oil passes through the return oil tank 400, it falls into the oil storage tank. The oil storage tank collects the oil that entered the vacuum pipe 320 to prevent it from moving backward.

[0037] In this embodiment, the bottom of the oil filter tank 200 is funnel-shaped, and the vacuum pump 310 is connected to a vacuum motor 350.

[0038] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, there are two oil filter tanks 200, and the vacuum pipeline 320 includes a main pipeline 321 and two auxiliary pipelines 322. One end of the main pipeline 321 is connected to the vacuum pump 310, and the other end is connected to the return oil tank 400. One end of the auxiliary pipelines 322 is connected to the oil storage chamber 230 of the oil filter tank 200, and the other end is connected to the return oil tank 400.

[0039] Specifically, two oil filter tanks 200 are symmetrically arranged on the support. This arrangement improves the efficiency of oil filtration and also allows for proper distribution of vacuum airflow, preventing excessive vacuum from reducing filtration quality. In this embodiment, the number of oil filter tanks 200 can be multiple.

[0040] In some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, an oil baffle plate 250 is provided inside the oil filter tank 200. The oil baffle plate 250 is fixedly installed on the inner wall of the oil filter tank 200. The oil baffle plate 250 is located below the filter screen 210 and above the connection between the vacuum pipe 320 and the oil storage chamber 230.

[0041] Specifically, the outer edge of the oil baffle 250 is sealed to the inner wall of the oil filter tank 200, and the inner edge extends into the oil filter tank 200. The oil baffle 250 is located between the filter screen 210 and the connection between the vacuum pipe 320 and the oil storage chamber 230, so that it can block the oil flowing down the inner wall of the oil filter tank 200, thereby preventing the oil from flowing into the vacuum pipe 320 along the inner wall of the oil filter tank 200.

[0042] In some embodiments of this utility model, such as Figure 5 As shown, a support frame 220 is provided inside the oil filter tank 200, and the filter screen 210 is placed on the support frame 220. Specifically, the arrangement of placing the filter screen 210 on the support frame 220 facilitates the replacement of the filter screen 210.

[0043] In some embodiments of this utility model, such as Figure 5 As shown, the support frame 220 includes a support ring and multiple support rods. The support ring is coaxially arranged with the oil filter tank 200 and fixedly connected to the inner wall of the oil filter tank 200; the multiple support rods are fixedly arranged inside the support ring. Specifically, the multiple support rods are evenly distributed along the circumference of the fixed ring.

[0044] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, an oil outlet valve 241 is provided on the oil outlet pipe 240. The oil outlet valve 241 can control the opening and closing of the oil outlet pipe 240. The oil outlet valve 241 is in the closed state when filtering oil on the filter screen 210.

[0045] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the secondary pipe 322 is connected to a pressure relief pipe 323. The pressure relief pipe 323 and the secondary pipe 322 are connected to the oil storage chamber 230 via a tee pipe. A pressure relief valve 330 is installed on the pressure relief pipe 323, and a vacuum valve 340 is installed on the secondary pipe 322. Specifically, the vacuum valve 340 is used to control whether a vacuum is drawn in the corresponding oil storage chamber 230, and the pressure relief valve 330 is used to control the opening and closing of the pressure relief pipe 323, so that the pressure relief valve 330 can be opened when the oil filter tank 200 needs to be depressurized, so that the air pressure in the oil filter tank 200 can be quickly restored.

[0046] In some embodiments of this utility model, such as Figure 5 As shown, the oil filter tank 200 is equipped with an observation window 260, which is used to monitor the amount of oil in the oil storage chamber 230 in real time.

[0047] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A vacuum oil filter device characterized by comprising: include: Frame; An oil filter barrel is provided with an oil inlet at the upper end and an oil outlet pipe connected to the bottom; a filter screen is provided inside the oil filter barrel, and the filter screen and the bottom of the oil filter barrel form an oil storage chamber. A vacuum mechanism, comprising a vacuum pump and a vacuum pipeline; the vacuum pump is mounted on the frame; one end of the vacuum pipeline is connected to the vacuum pump, and the other end is connected to the oil storage chamber; The oil return tank is located on the frame and is connected to the vacuum tube.

2. The vacuum oil filtration device according to claim 1, characterized in that, The number of oil filter tanks is two; the vacuum pipeline includes a main pipeline and two auxiliary pipelines; One end of the main pipeline is connected to the vacuum pump, and the other end is connected to the return oil tank; one end of the auxiliary pipeline is connected to the oil storage chamber of the oil filter tank, and the other end is connected to the return oil tank.

3. The vacuum oil filtration device according to claim 1, characterized in that, An oil baffle is provided inside the oil filter barrel; the oil baffle is fixedly installed on the inner wall of the oil filter barrel; the oil baffle is located below the filter screen and above the connection between the vacuum pipe and the oil storage chamber.

4. The vacuum oil filtration device according to claim 1, characterized in that, The oil filter tank is equipped with a support frame; the filter screen is placed on the support frame.

5. The vacuum oil filtration device according to claim 4, characterized in that, The support frame includes a support ring and multiple support rods; the support ring is coaxially arranged with the oil filter barrel and fixedly connected to the inner wall of the oil filter barrel; the multiple support rods are fixedly arranged inside the support ring.

6. The vacuum oil filtration device according to claim 1, characterized in that, An oil outlet valve is installed on the oil outlet pipe.

7. The vacuum oil filtration device according to claim 2, characterized in that, The secondary pipeline is connected to a pressure relief pipe; the pressure relief pipe is equipped with a pressure relief valve; and the secondary pipeline is equipped with a vacuum valve.

8. The vacuum oil filtration device according to claim 1, characterized in that, The oil filter tank is equipped with an observation window; the observation window is used to monitor the amount of oil in the oil storage chamber in real time.

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