High-efficiency integrated two-stage vacuum oil filter

Abstract

This utility model relates to the field of oil purification technology, specifically to a high-efficiency integrated two-stage vacuum oil filter, including a base and a frame. A unit is mounted on the frame, comprising a vacuum separation chamber, an oil collector, and a filter assembly. The oil collector is connected to the vacuum separation chamber, and its outlet is connected to the inlet of the filter assembly via a second oil guide pipe. The filter assembly includes a first filter chamber and a second filter chamber, with a filter plate inside the first filter chamber. The second oil guide pipe is fixedly connected to a connection port on the first filter chamber, and extends into a spiral heat exchange pipe that penetrates the interior of the first filter chamber. The outlet of the spiral heat exchange pipe connects to the interior of the second filter chamber, and its end has an exhaust port connecting to the outside. An oil pump is mounted on the base, connected to the first filter chamber via the first oil guide pipe, allowing the oil to be treated to exchange heat with the spiral heat exchange pipe in the first filter chamber as it flows through the filter plate.

Description

Technical Field

[0001] This utility model relates to the field of oil purification technology, specifically to a high-efficiency integrated dual-stage vacuum oil filter. Background Technology

[0002] In the field of industrial oil purification, vacuum oil filters are key equipment for ensuring the quality of lubricating oil, insulating oil, and other oil products.

[0003] Traditional oil filters generally suffer from low heat utilization efficiency during operation. On the one hand, the oil is heated during the filtration process to promote water evaporation and impurity separation, but the filtered oil is directly discharged after separation, and the large amount of heat contained in it is not effectively recovered and utilized. On the other hand, newly input mixed oil still requires a lot of energy to be heated before entering the filtration system, resulting in high energy consumption for the entire oil filtration process.

[0004] Therefore, there is an urgent need for a highly efficient integrated two-stage vacuum oil filter to improve the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a highly efficient integrated two-stage vacuum oil filter. The heat exchange pipes are arranged in a spiral pattern inside the first filter chamber, fully utilizing the residual heat from the filtered oil after separation to preheat the mixed oil pumped in by the outlet pump. Before entering the second filter chamber, the mixed oil absorbs the heat carried by the filtered oil after separation through full contact with the spiral heat exchange pipes, effectively reducing the energy consumption required for subsequent heating of the mixed oil by the heater. This solves the problems mentioned in the background art, namely:

[0006] Traditional oil filters generally suffer from low heat utilization efficiency during operation. The oil is heated during filtration to promote water evaporation and impurity separation, but the filtered oil is directly discharged, resulting in a significant amount of heat not being effectively recovered and utilized.

[0007] To achieve the above objectives, this utility model provides a high-efficiency integrated two-stage vacuum oil filter, including a base and a frame, with a unit mounted on the frame. The unit includes a vacuum separation chamber, an oil filter collector, and a filter assembly.

[0008] The oil filter collector is connected to the vacuum separation chamber, and its outlet end is connected to the inlet of the filter assembly through a second oil guide pipe.

[0009] The filter assembly includes a first filter chamber and a second filter chamber, and a filter plate is provided in the first filter chamber;

[0010] The second oil guide pipe is fixedly connected to the connection port on the first filter chamber, and the second oil guide pipe extends into a spiral heat exchange pipe that penetrates the interior of the first filter chamber.

[0011] The outlet end of the spiral heat exchange pipe is connected to the interior of the second filter chamber, and the end is provided with an exhaust port connected to the outside.

[0012] The base is equipped with an oil pump, which is connected to the first filter chamber through a first oil guide pipe, so that the oil to be treated flows through the filter plate and exchanges heat with the spiral heat exchange pipe in the first filter chamber.

[0013] In the above technical solution, the oil pump pumps the oil to be treated to the first filter chamber through the oil inlet pipeline. In the first filter chamber, the oil to be treated exchanges heat with the heat exchange pipeline to achieve preheating. Subsequently, the primary filtration is completed under the action of the filter plate. The filtered oil enters the second filter chamber through the conduit for secondary filtration. The oil that has undergone two stages of filtration flows into the oil filter collector through the first oil guide pipeline and finally enters the vacuum separation chamber for the separation of water and gas. The qualified filtered oil after separation is collected, while the exhaust port at the end of the spiral heat exchange pipeline discharges the gas generated during the heat exchange process to the outside. The whole process effectively utilizes heat through heat exchange, improves oil filtration efficiency, and reduces energy consumption.

[0014] Based on this, the horizontally arranged filter plates in the first filter chamber divide the annular oil chamber, allowing the oil to be treated to be preheated in the heat exchange pipe before entering the annular oil chamber for initial filtration by the filter plates. The filtered oil then flows into the second filter chamber. The outlet of the second filter chamber is connected to a vertically distributed heater through a second oil guide pipe. After the oil is further heated by the heater, it enters the vacuum separation chamber through the heater outlet to achieve the separation of water and gas. The anti-backflow valve between the heater and the vacuum separation chamber prevents the backflow of the separated oil, ensuring unidirectional flow of the oil and guaranteeing the orderly progress of the oil filtration process. At the same time, it achieves efficient purification of the oil and rational utilization of heat.

[0015] In another technical solution, the spiral heat exchange pipe has heat-conducting fins on its wall, a gas-liquid separator is provided at the exhaust port, the first filter chamber is connected to the second filter chamber through a conduit, and a valve is provided on the surface of the conduit.

[0016] In this technical solution, the oil pump delivers the oil to be treated into a spiral heat exchange pipe. The heat-conducting fins on the pipe wall increase the heat exchange area, allowing the oil to be treated to exchange heat more fully with the hot oil in the first filter chamber, thus completing the preheating. The preheated oil then enters the first filter chamber, and after filtration, it flows to the second filter chamber through a conduit. Valves on the surface of the conduit control the flow rate and direction of the oil. After further processing in the second filter chamber, the oil is heated by a heater and then enters the vacuum separation chamber to separate moisture and gas. The gas-liquid separator at the exhaust port of the heat exchange pipe effectively separates the oil carried in the discharged gas, avoiding oil loss and ensuring that the entire oil filtration process is efficient, energy-saving, and stable.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This highly efficient integrated dual-stage vacuum oil filter utilizes a spiral heat exchange pipe layout within the first filter chamber to fully leverage the residual heat from the separated filtered oil, preheating the mixed oil pumped in by the outlet pump. Before entering the second filter chamber, the mixed oil absorbs the heat carried by the separated filtered oil through thorough contact with the spiral heat exchange pipes, effectively reducing the energy consumption required for subsequent heating of the mixed oil by the heater. This heat pre-recovery mechanism eliminates the need for the heater to directly heat the mixed oil from its initial temperature to the target temperature, reducing heating power and operating time. Simultaneously, the various components of the equipment are systematically connected via conduits, forming a compact heat circulation system that not only improves heat exchange efficiency but also reduces heat loss during transmission. Furthermore, the dual-stage filter chamber and filter plate design ensures the filtration accuracy of the oil, while the robust connection between the vacuum separation chamber and the frame enhances the equipment's stability. This achieves energy conservation and emission reduction while meeting the industrial production demand for highly efficient and energy-saving oil filtration equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0020] Figure 2 This is a schematic diagram of the unit structure for an embodiment;

[0021] Figure 3 This is a schematic diagram of the filter component structure in an embodiment;

[0022] Figure 4 This is a cross-sectional structural diagram of the filter component in an embodiment.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 100. Base; 110. Frame;

[0025] 200. Generator unit; 210. Oil pump; 220. First oil guide line; 230. Heater; 240. Vacuum separation chamber; 250. Oil filter collector; 260. Second oil guide line;

[0026] 300. Filter assembly; 310. First filter chamber; 311. Heat exchange pipe; 312. Filter plate; 313. Connection port; 320. Second filter chamber. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Traditional oil filters generally suffer from low heat utilization efficiency during operation. The oil is heated during filtration to promote water evaporation and impurity separation, but the filtered oil is directly discharged, resulting in a significant amount of heat not being effectively recovered and utilized. (See also...) Figures 1-4 As shown, this embodiment provides a high-efficiency integrated two-stage vacuum oil filter, including a base 100 and a frame 110. The frame 110 is equipped with a unit 200. The unit 200 includes a vacuum separation chamber 240, an oil collector 250, and a filter assembly 300. The oil collector 250 is connected to the vacuum separation chamber 240, and its outlet end is connected to the inlet of the filter assembly 300 through a second oil guide pipe 260.

[0029] The filter assembly 300 includes a first filter chamber 310 and a second filter chamber 320, and a filter plate 312 is provided in the first filter chamber 310.

[0030] The second oil guide pipe 260 is fixedly connected to the connection port 313 on the first filter chamber 310, and the second oil guide pipe 260 extends into a spiral heat exchange pipe 311, which penetrates the interior of the first filter chamber 310.

[0031] The outlet end of the spiral heat exchange pipe 311 is connected to the inside of the second filter chamber 320, and the end is provided with an exhaust port connected to the outside.

[0032] The base 100 is equipped with an oil pump 210, which is connected to the first filter chamber 310 through the first oil guide pipe 220, so that the oil to be treated flows through the filter plate 312 and exchanges heat with the spiral heat exchange pipe 311 in the first filter chamber 310.

[0033] During implementation, the oil pump 210 on the base 100 delivers the oil to be treated to the first filter chamber 310 through the first oil guide pipe 220. As the oil flows through the first filter chamber 310, it comes into full contact with the spiral heat exchange pipe 311 that runs through it, using the residual heat of the hot oil in the pipe for heat exchange to achieve preheating. The preheated oil undergoes primary filtration through the filter plate 312 to separate impurities, and then flows into the second filter chamber 320 for secondary fine filtration. The oil that has undergone two stages of filtration enters the oil collector 250 through the second oil guide pipe 260, and then enters the vacuum separation chamber 240 connected to it to achieve separation of water and gas. The gas generated during the separation process is discharged from the exhaust port at the end of the spiral heat exchange pipe 311. At the same time, a gas-liquid separator can be used at the exhaust port to prevent oil loss. The whole process efficiently recovers and utilizes the residual heat of the oil filter, significantly improving heat utilization efficiency, reducing energy consumption, and effectively solving the problem of heat waste in traditional oil filters.

[0034] See Figure 2 As shown, the oil to be treated enters the first filter chamber 310 through the first oil guide pipe 220 under the action of the oil pump 210. The spiral heat exchange pipe 311 is connected to the inner wall of the first filter chamber 310 through the support to form an annular oil cavity. When the oil to be treated flows laterally in the annular oil cavity and passes through the filter plate 312, it exchanges heat with the hot oil in the spiral heat exchange pipe 311 to complete the preheating, and is then filtered by the filter plate 312. The oil after the first filtration flows out of the first filter chamber 310 and enters the vertically distributed heater 230 through the conduit for further heating. The heated oil enters the vacuum separation chamber 240 from the outlet of the heater 230 to achieve efficient separation of water and gas. The separated oil flows into the oil filter collector 250 and can be circulated or collected and output through the second oil guide pipe 260. The whole process combines heat exchange to recover waste heat, multi-stage filtration and vacuum separation, which significantly improves the oil filtration efficiency and quality.

[0035] Figure 3 In this process, the oil to be treated enters the first filter chamber 310 through the first oil guide pipe 220 under the action of the oil pump 210. When the oil to be treated flows laterally in the annular oil chamber and passes through the filter plate 312, it fully exchanges heat with the hot oil in the spiral heat exchange pipe 311 to complete the preheating, and is then filtered by the filter plate 312. The oil after the first filtration enters the second filter chamber 320 through the conduit with a valve on its surface for secondary filtration. After processing, it enters the vacuum separation chamber 240 to separate water and gas. The separated oil flows into the oil filter collector 250, and can be circulated or collected and output through the second oil guide pipe 260. The gas-liquid separator at the exhaust port at the end of the spiral heat exchange pipe 311 discharges the gas generated during the heat exchange process and separates the oil carried in it, avoiding oil loss. The entire process, through structural optimization and component coordination, efficiently recovers waste heat, improves filtration efficiency, and ensures operational stability.

[0036] Additionally, see Figure 4 As shown, the spiral heat exchange pipe 311 is connected to the inner wall of the first filter chamber 310 through a support to form an annular oil cavity, and the heat-conducting fins on the pipe wall increase the heat exchange area.

[0037] In this embodiment, a high-efficiency integrated dual-stage vacuum oil filter is used in the following way: First, the oil pump 210 on the base 100 delivers the oil to be treated to the first filter chamber 310 through the first oil guide pipe 220. The spiral heat exchange pipe 311 is fixed to the inner wall of the first filter chamber 310 by a bracket, and the heat-conducting fins on the outer wall of the pipe increase the heat exchange area. When the oil to be treated flows laterally in the annular oil chamber, it fully exchanges heat with the hot air in the heat exchange pipe 311 to achieve preheating. Simultaneously, the filter plate 312, which is laterally set in the middle of the annular oil chamber, performs primary filtration of the oil, intercepting large particulate impurities. Preheating and primary filtration are completed simultaneously, improving pretreatment efficiency.

[0038] After initial filtration, the oil flows through a valve on the surface of a conduit, controlling its flow rate, into the second filtration chamber 320 for secondary fine filtration. The filtered oil then enters a vertically distributed heater 230 via a conduit, where it is heated and flows out through the outlet into the vacuum separation chamber 240. An anti-backflow valve between the heater 230 and the vacuum separation chamber 240 prevents backflow, ensuring unidirectional oil flow. Inside the vacuum separation chamber 240, moisture and gas in the oil are efficiently separated. The qualified oil then enters the oil filter collector 250 and can be recycled or discharged via the second oil guide pipe 260, achieving oil purification.

[0039] A gas-liquid separator is installed at the exhaust port at the end of the spiral heat exchange pipe 311 to discharge the gas generated during the heat exchange process and at the same time separate and recover the oil carried in the gas to avoid oil loss. The entire system, through the design of the spiral heat exchange pipe 311 and the heat-conducting fins, makes full use of the residual heat of the oil filtration to preheat the newly input oil to be treated, forming a heat recycling system. With the help of the anti-backflow valve and the valve settings, the system can significantly reduce energy consumption and improve the stability and economy of equipment operation while ensuring the orderly progress of the oil filtration process.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency integrated two-stage vacuum oil filter, comprising a base (100) and a frame (110), wherein a unit (200) is mounted on the frame (110), the unit (200) comprising a vacuum separation chamber (240), an oil collector (250), and a filter assembly (300); characterized in that: The oil collector (250) is connected to the vacuum separation chamber (240), and its outlet end is connected to the inlet of the filter assembly (300) through the second oil guide pipe (260); The filter assembly (300) includes a first filter chamber (310) and a second filter chamber (320), and a filter plate (312) is provided in the first filter chamber (310). The second oil guide pipe (260) is fixedly connected to the connection port (313) on the first filter chamber (310), and the second oil guide pipe (260) extends into a spiral heat exchange pipe (311), which penetrates the interior of the first filter chamber (310); The outlet end of the heat exchange pipe (311) is connected to the interior of the second filter chamber (320), and the end is provided with an exhaust port connected to the outside. The base (100) is equipped with an oil pump (210), which is connected to the first filter chamber (310) through the first oil guide pipe (220), so that the oil to be treated flows through the filter plate (312) and exchanges heat with the heat exchange pipe (311) in the first filter chamber (310).

2. The high efficiency integrated two-stage vacuum oil filter according to claim 1, wherein: The heat exchange pipe (311) is connected to the inner wall of the first filter chamber (310) by a bracket. The heat exchange pipe (311) is connected to the inner wall of the first filter chamber (310) by a bracket to form an annular oil cavity. The filter plate (312) is arranged laterally in the middle of the annular oil cavity.

3. The high efficiency integrated two-stage vacuum oil filter of claim 1, wherein: The outlet of the second filter chamber (320) is connected to a vertically distributed heater (230) via a conduit, and the outlet of the heater (230) is connected to a vacuum separation chamber (240).

4. The high-efficiency integrated dual-stage vacuum oil filter according to claim 3, characterized in that: A backflow prevention valve is provided between the heater (230) and the vacuum separation chamber (240).

5. The high-efficiency integrated dual-stage vacuum oil filter according to claim 1, characterized in that: The heat exchange pipe (311) has heat-conducting fins on its pipe wall.

6. The high-efficiency integrated dual-stage vacuum oil filter according to claim 1, characterized in that: A gas-liquid separator is installed at the exhaust port.

7. The high-efficiency integrated dual-stage vacuum oil filter according to claim 1, characterized in that: The first filter chamber (310) is connected to the second filter chamber (320) through a conduit, and a valve is provided on the surface of the conduit.

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