Dehydration device for lubricating oil production
By using a multi-stage dehydration filtration system and a water storage tank design, the problem of increased costs in existing technologies has been solved, achieving efficient dehydration treatment of lubricating oil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
In the current lubricant production process, the method of removing moisture by adding hydrophilic materials increases production costs.
It adopts a multi-stage dehydration filtration component, including an inclined oleophilic and hydrophobic membrane and a removable filter plate, combined with a water storage tank and a drain pipe design, to achieve multi-stage filtration and moisture removal.
It improves the efficiency and effectiveness of lubricating oil dehydration treatment and reduces production costs.
Smart Images

Figure CN224077295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lubricating oil processing equipment, and more specifically to a dehydration device for lubricating oil production. Background Technology
[0002] In the production process of lubricating oil, it is necessary to dehydrate the water in the lubricating oil to improve its quality. In existing technologies, a common method involves adding hydrophilic materials to the oil to adsorb water molecules, followed by removing the adsorbed precipitate. However, the use of hydrophilic materials to remove water indirectly increases the production cost of the lubricating oil. Utility Model Content
[0003] The purpose of this utility model is to provide a dehydration device for lubricating oil production in order to solve the above-mentioned technical problems.
[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0005] A dehydration device for lubricating oil production includes a top cover, an outer tank, an inner tank, several dehydration filter components, and a water suction pipe. The top cover is hinged to the top of the outer tank, and an inner tank sealing cover is provided on the top cover. An oil inlet pipe is provided on the inner tank sealing cover. The inner tank sealing cover is sealed and nested at the top of the inner tank by a sealing ring. The water suction pipe passes through the top cover and the inner tank sealing cover, and its end is located at the top of the dehydration filter components. The dehydration filter components include an inclined oleophilic-hydrophobic membrane and a detachable filter plate. A gap is provided between the oleophilic-hydrophobic membrane and the filter plate. An oil outlet pipe is provided through the bottom of the inner tank, and a water storage tank is provided at the bottom of the inner tank. A drain pipe is provided through the side of the water storage tank. The two sides of the oleophilic-hydrophobic membrane are divided into a high point and a low point. A water outlet is provided through the inner tank on the high point side. The water outlet discharges the treated water to the water storage tank through an inclined plate.
[0006] In some embodiments, two water storage tanks are provided, with the inclined plates of the dehydration and filtration assembly distributed on both sides of the inner tank.
[0007] In some embodiments, a limiting plate is provided on the side end of the filter plate, which is inserted from the side end of the inner tank and is restricted to installation on the inner tank by the limiting plate.
[0008] In some embodiments, the bottom of the outer tank is provided with support feet.
[0009] In some embodiments, the inner side of the outer tank is provided with protective blocks to facilitate the insertion of the inner tank, and the protective blocks are located on both sides of the inner tank.
[0010] In some embodiments, the outer tank is provided with a base for supporting the inner tank.
[0011] In some embodiments, valves for opening or closing are provided on the oil inlet pipe, oil outlet pipe, and drain pipe.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, dehydration is performed through a dehydration filter assembly. After the lubricating oil is dehydrated in the inner tank, the treated lubricating oil is directly discharged from the oil outlet pipe. The structure is simple and the dehydration efficiency is high. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0016] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;
[0017] Figure 4 This is a structural schematic diagram of the partition arrangement in Example 2.
[0018] Reference numerals: 1. Outer tank; 2. Top cover; 3. Support foot; 4. Inner tank; 5. Second oleophilic-hydrophobic membrane; 6. Second filter plate; 7. Dehydration filter assembly; 8. Water storage tank; 81. Drain pipe; 9. Oil outlet pipe; 10. Second valve body; 11. Protective block; 21. Inner tank sealing cover; 211. Sealing ring; 22. Oil inlet pipe; 23. First valve body; 24. Water suction pipe; 25. Mounting plate; 41. First filter plate; 42. Limiting plate; 43. Partition block; 44. First oleophilic-hydrophobic membrane; 45. Coil spring; 46. Partition plate; 47. Water outlet; 48. Inclined plate; 100. Base. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] like Figure 1-4 As shown, this utility model provides a dehydration device for lubricating oil production, including a top cover 2, an outer tank 1, an inner tank 4, several dehydration filter components 7, and a water suction pipe 24. The top cover 2 is hinged to the top of the outer tank 1. The hinge is specifically achieved by connecting the top cover 2 to the mounting plate 25 via a hinge rod. An inner tank sealing cover 21 is provided on the top cover 2, and an oil inlet pipe 22 is provided on the inner tank sealing cover 21. The inner tank sealing cover 21 is sealed and nested at the top of the inner tank 4 by a sealing ring 211. The water suction pipe 24 passes through the top cover 2 and the inner tank sealing cover 21. And its end is located at the top of the dehydration filter assembly 7. The dehydration filter assembly 7 includes an inclined oleophilic and hydrophobic membrane and a detachable filter plate. A gap is provided between the oleophilic and hydrophobic membrane and the filter plate. An oil outlet pipe 9 is provided through the bottom of the inner tank 4. A water storage tank 8 is provided at the bottom of the inner tank 4. A drain pipe 81 is provided through the side of the water storage tank 8. The two sides of the oleophilic and hydrophobic membrane are divided into a high point and a low point. An outlet 47 is provided through the inner tank 4 on the high point side. The outlet 47 discharges the treated water to the water storage tank 8 through the inclined plate 48.
[0022] The top of the outer tank 1 is sealed by the top cover 2, and the rest of the pipes are equipped with valves to ensure the overall sealing of the outer tank 1; the top of the inner tank 4 is sealed by the inner tank sealing cover 21, and the opening structure on the inner tank 4 is the water outlet 47. Water blocked by the oleophilic and hydrophobic membrane will accumulate above the oleophilic and hydrophobic membrane and can be extracted through the water extraction pipe 24.
[0023] The dehydration device for lubricating oil production in this utility model adopts a multi-stage dehydration filtration assembly to perform multi-stage filtration from top to bottom, ensuring the removal effect of water in the lubricating oil.
[0024] According to some embodiments of this utility model, optionally, two water storage tanks 8 are provided, and the inclined plates 48 of different dehydration and filtration components 7 are distributed on both sides of the inner tank 4.
[0025] According to some embodiments of the present invention, optionally, a limiting plate 42 is provided on the side end of the filter plate, and the filter plate is inserted from the side end of the inner tank 4 and restricted to be installed on the inner tank 4 by the limiting plate 42.
[0026] According to some embodiments of the present invention, optionally, a support foot 3 is provided at the bottom end of the outer tank 1.
[0027] According to some embodiments of the present invention, optionally, a protective block 11 is provided on the inner side of the outer tank 1 to facilitate the insertion of the inner tank 4, and the protective block 11 is located on both sides of the inner tank 4.
[0028] According to some embodiments of the present invention, optionally, a base 100 for supporting the inner tank 4 is provided on the outer tank 1.
[0029] According to some embodiments of this utility model, optionally, valve bodies for opening or closing are provided on the oil inlet pipe 22, the oil outlet pipe 9, and the drain pipe. The control valve body on the oil inlet pipe 22 is a first valve body 23, and the valve body on the oil outlet pipe 9 is a second valve body 10.
[0030] Example 1
[0031] like Figure 1-3 As shown, this embodiment provides a dehydration device for lubricating oil production, including a top cover 2, an outer tank 1, an inner tank 4, two dehydration filter components 7, and a water suction pipe 24. The top cover 2 is hinged to the top of the outer tank 1. An inner tank sealing cover 21 is provided on the top cover 2, and an oil inlet pipe 22 is provided on the inner tank sealing cover 21. The inner tank sealing cover 21 is sealed and nested at the top of the inner tank 4 by a sealing ring 211. The water suction pipe 24 passes through the top cover 2 and the inner tank sealing cover 21, and its end is located at the top of the dehydration filter component 7. The dehydration and filtration assembly 7 includes an inclined oleophilic and hydrophobic membrane and a detachable filter plate. The oleophilic and hydrophobic membrane is separated from the filter plate by a spacer 43. An oil outlet pipe 9 is provided through the bottom of the inner tank 4. A water storage tank 8 is provided at the bottom of the inner tank 4. A drain pipe 81 is provided through the side of the water storage tank 8. The two sides of the oleophilic and hydrophobic membrane are divided into a high point and a low point. An outlet 47 is provided through the inner tank 4 on the high point side. The water outlet 47 discharges the treated water into the water storage tank 8 through an inclined plate 48.
[0032] Two water storage tanks 8 are provided, and the inclined plates 48 of different dewatering filter components 7 are distributed on both sides of the inner tank 4. A limiting plate 42 is provided on the side end of the filter plate. The filter plate is inserted from the side end of the inner tank 4 and is restricted to the inner tank 4 by the limiting plate 42.
[0033] The bottom of the outer tank 1 is provided with a support foot 3. A protective block 11 is provided on the inner side of the outer tank 1 to facilitate the insertion of the inner tank 4; the protective block 11 is located on both sides of the inner tank 4. A base 100 is provided on the outer tank 1 to support the inner tank 4. Valves for opening or closing are provided on the oil inlet pipe 22, oil outlet pipe 9, and drain pipe.
[0034] In this embodiment, the dehydration device for lubricating oil production consists of a first dehydration filter assembly and a second dehydration filter assembly from top to bottom. Both the first and second dehydration filter assemblies have water outlets 47 on their sides. Both the first and second dehydration filter assemblies are structurally equipped with an oleophilic-hydrophobic membrane and a filter plate. (Refer to...) Figure 1 The upper dehydration filter assembly is the first dehydration filter assembly, and the lower dehydration filter assembly is the second dehydration filter assembly. The first dehydration filter assembly includes a first oleophilic-hydrophobic membrane 44 and a first filter plate 41, and the second dehydration filter assembly includes a second oleophilic-hydrophobic membrane 5 and a second filter plate 6. In use, the valve body on the oil inlet pipe 22 is opened to introduce lubricating oil. After being processed by multiple dehydration filter assemblies 7, the oil flows downwards in sequence and finally flows into the oil outlet pipe 9 at the bottom of the inner tank 4.
[0035] Example 2
[0036] Further reference Figure 4 This embodiment provides a dehydration device for lubricating oil production. The difference between this embodiment and Embodiment 1 is that a partition 46 is also provided. The partition is located on the outside of the outlet 47, that is, on the outer side of the inner tank 4. The partition 46 is installed on the side end of the inner tank 4 at the corresponding position by a coil spring 45 to improve the sealing of the inner tank 4. The elasticity of the coil spring 45 is relatively small, which makes it easy for water to push the partition 46 outward from the inside, exposing a gap. The water then flows from the gap along the inclined plate 48 to the water storage tank 8 at the bottom.
Claims
1. A dehydration device for lubricating oil production, characterized in that, The device includes a top cover, an outer tank, an inner tank, several dehydration and filtration components, and a water suction pipe. The top cover is hinged to the top of the outer tank, and an inner tank sealing cover is installed on the top cover. An oil inlet pipe is installed on the inner tank sealing cover. The inner tank sealing cover is sealed and nested at the top of the inner tank by a sealing ring. The water suction pipe passes through the top cover and the inner tank sealing cover, and its end is located at the top of the dehydration and filtration components. The dehydration and filtration components include an inclined oleophilic and hydrophobic membrane and a detachable filter plate. A gap is provided between the oleophilic and hydrophobic membrane and the filter plate. An oil outlet pipe is provided through the bottom of the inner tank, and a water storage tank is provided at the bottom of the inner tank. A drain pipe is provided through the side of the water storage tank. The two sides of the oleophilic and hydrophobic membrane are divided into a high point and a low point. A water outlet is provided through the inner tank on the high point side. The water outlet discharges the treated water into the water storage tank through an inclined plate.
2. The dehydration device for lubricating oil production according to claim 1, characterized in that, The water storage tank is provided in two sections, with the inclined plates of the dehydration and filtration assembly distributed on both sides of the inner tank.
3. The dehydration device for lubricating oil production according to claim 1, characterized in that, The filter plate is equipped with a limiting plate on its side end. The filter plate is inserted from the side end of the inner tank and is restricted to installation on the inner tank by the limiting plate.
4. The dehydration device for lubricating oil production according to claim 1, characterized in that, The bottom of the outer tank is equipped with support feet.
5. The dehydration device for lubricating oil production according to claim 1, characterized in that, The inner side of the outer tank is provided with protective blocks to facilitate the insertion of the inner tank. These protective blocks are located on both sides of the inner tank.
6. The dehydration device for lubricating oil production according to claim 1, characterized in that, The outer tank is equipped with a base to support the inner tank.
7. The dehydration device for lubricating oil production according to claim 1, characterized in that, The inlet pipe, outlet pipe, and drain pipe are equipped with valves for opening or closing.