Electrostatic filter element structure containing fiber paper

Abstract

The electrostatic filter element structure comprises a plurality of filter layer assemblies which are connected in a sleeved mode, and each filter layer assembly is formed by connecting a cathode piece, a fiber paper anode layer, fiber paper, a fiber paper cathode layer, an anode piece and an outer keel in sequence; the inner keel is positioned in the center of the mutually sleeved filter layer components and is used for supporting the filter layer components; the filter layer assembly is fixedly connected with the inner keel through a plurality of metal connecting pieces, the inner keel is connected with the anode piece through several metal connecting pieces, and the outer keel is connected with the cathode piece through the other metal connecting pieces; the insulating layer is located on the outer surfaces of the filtering layer assembly and the inner keel and used for fixing the filtering layer assembly and the inner keel and enabling the filtering layer assembly and the inner keel to have an insulating effect. The system can be repaired and recycled when the water content in the electrostatic field exceeds the standard, the purification efficiency is improved, a large amount of manpower and material resources are saved for replacement, and the labor cost is low.

Description

Technical Field

[0001] This application belongs to the technical field of petroleum purification, and in particular relates to an electrostatic filter element structure containing fiber paper. Background Art

[0002] Currently, for petroleum purification, the main filtration methods are vacuum pressurization, centrifugation, and electrostatic filtration. During the filtration process, once water enters the oil, it is necessary to heat the vacuum or use water-absorbing materials to evaporate or remove the water in the oil. At the same time, it involves the problems of changing oil and cleaning the fuel tank. And the operators for changing oil and cleaning the fuel tank must have special type of work operation certificates because when changing oil and cleaning the fuel tank, it is easy to cause pollution. After the replacement, it is necessary to conduct inspections and clean the ground, resulting in low replacement efficiency. If an electrostatic filter element is used, the water inlet needs to be replaced all at once. Mainly because the electrostatic filter element after water inlet is in a short-circuit state in the electric field and will no longer play a purification role, which also wastes no-load working time and electricity costs. It is found that it must be replaced, and only after removing the water can the electrostatic filter element work. Therefore, the existing oil purification filter elements need to be frequently replaced or a large amount of electric power materials are consumed to remove the water in the oil, resulting in high purification costs for the existing purification filter elements. Summary of the Utility Model

[0003] The technical problem to be solved by this utility model is: to solve the deficiencies in the prior art, such as the need for frequent oil change and fuel tank cleaning, which lead to oil pollution and low efficiency, and the cumbersome steps and high costs of replacing the filter element. Thus, an electrostatic filter element structure containing fiber paper is provided.

[0004] The technical solution adopted by this utility model to solve its technical problems is:

[0005] An electrostatic filter element structure containing fiber paper, comprising:

[0006] A plurality of mutually sleeved filter layer components for filtering liquids, and the filter layer components are sequentially connected and composed of a cathode sheet, a fiber paper anode layer, fiber paper, a fiber paper cathode layer, an anode sheet, and an outer keel;

[0007] An inner keel located inside the center of the mutually sleeved filter layer components for supporting the filter layer components;

[0008] A plurality of metal connecting pieces for fixedly connecting the filter layer components and the inner keel, several of which connect the inner keel and the anode sheet, and several others connect the outer keel and the cathode sheet;

[0009] An insulating layer located on the outer surfaces of the filter layer components and the inner keel for fixing the filter layer components and the inner keel and making them insulated.

[0010] Further, the insulating layer includes a plurality of insulating adhesives, which are arranged on two end faces of the filter layer assembly and the inner keel to form an electrostatic filter element structure.

[0011] Further, the lengths of the insulating adhesives are different, and they are installed staggeredly and centrosymmetrically on the end face of the filter layer assembly, and there are non-conductive and insulating parts on the contact surface connected to the outside.

[0012] Further, the thickness of the insulating rubber is 5 mm - 11 mm.

[0013] Further, it further includes at least two insulating connecting wires, which connect the metal connecting piece and the filter layer assembly together, and the insulating connecting wires extend out of both ends of the filter layer assembly and are fixedly connected together.

[0014] Further, the insulating connecting wire is made of rubber material.

[0015] Further, the thickness of the fiber paper anode layer is 10 - 15 μm, and the thickness of the fiber paper cathode layer is 10 - 15 μm.

[0016] Further, the fiber paper is in an M-shaped continuous folding structure.

[0017] Further, the inner keel is in a cylindrical structure, and the outer keel is also in a cylindrical structure.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. In an electrostatic field, even if the water content exceeds, the recycling system can be repaired, the purification efficiency is improved, a large amount of manpower and material resources for replacement are saved, and the labor cost is low;

[0020] 2. And it does not require professional operation, is for popular use, improves the purification speed, and is conducive to standardized operation;

[0021] 3. The connection between the filter layer assembly and the inner keel through various insulating adhesives and insulating connecting wires makes the electrostatic filter element structure not easy to rot, not easy to loosen from each other, non-conductive, easy to work in an electric field, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The technical solutions of the present application will be further described below with reference to the drawings and embodiments.

[0023] Figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the present application;

[0024] Figure 2 It is a bottom-up structure schematic diagram of an embodiment of the present application;

[0025] Figure 3 It is another three-dimensional structure schematic diagram of an embodiment of the present application;

[0026] Figure 4 It is a schematic structural diagram of the cathode sheet, fiber paper anode layer, fiber paper, fiber paper cathode layer, and anode sheet of the embodiments of the present application;

[0027] Figure 5 It is a schematic diagram of the usage state when installed in a device in the embodiments of the present application;

[0028] The reference numerals in the figure are as follows:

[0029] 10. Filter layer assembly, 11. Cathode sheet, 12. Fiber paper anode layer, 13. Fiber paper, 14. Fiber paper cathode layer, 15. Anode sheet, 16. Outer keel, 20. Inner keel, 30. Metal connecting piece, 40. Insulating layer, 41. Insulating glue, 50. Insulating connecting wire, 1. Filter oil storage tank, 2. Circulating purification pipeline, 3. Moisture detector, 4. Oil inlet, 5. Moisture evaporation, 7. Temperature controller, 8. Drain port, 9. Vacuum tank, 11. Vacuum pump, 12. Heat exchanger, 13. Water storage tank, 14. PLC. Detailed implementation manners

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] Embodiment

[0035] This embodiment provides an electrostatic filter element structure containing fiber paper, including:

[0036] A plurality of mutually sleeved filter layer components 10 for filtering liquid. The filter layer component 10 is composed of a cathode sheet 11, a fiber paper anode layer 12, a fiber paper 13, a fiber paper cathode layer 14, an anode sheet 15, and an outer keel 16 connected in sequence. The fiber paper 13 is an M-shaped continuous folding structure; the thickness of the fiber paper anode layer 12 is 10 - 15 um, and the thickness of the fiber paper cathode layer 14 is 10 - 15 um.

[0037] Preferably, the fiber paper 13 can be a fiber paper with a thickness of 172 um, a tensile strength of 17 MPa, a resistivity of 5.3 m·cm, and a volume density of 0.32 g / ml.

[0038] The cathode sheet 11 is for conducting electricity. When an external electric field is to be applied, the cathode sheet 11 needs to be connected to an external power supply to be energized, and the required voltage is transmitted to the surface of the anode sheet 15 to increase the electric field adsorption strength. The fiber paper anode layer 12 and the fiber paper anode layer 12 increase the electric field adsorption strength, increase the filtration area, protect against moisture intrusion, and prevent the fiber paper from rotting.

[0039] An inner keel 20 is located inside the center of the mutually sleeved filter layer components 10 and is used to support the filter layer components 10. The inner keel 20 plays an internal support role to prevent the filter element from becoming loose and non-reusable after being washed many times over a long time. The inner keel 20 is a cylindrical structure, and the outer keel 16 is also a cylindrical structure;

[0040] A plurality of metal connecting pieces 30 fixedly connect the filter layer components 10 to the inner keel 20. Several of the metal connecting pieces 30 connect the inner keel 20 and the anode sheet 15, and several other metal connecting pieces 30 connect the outer keel 16 and the cathode sheet 11. For smooth conduction and to avoid poor conduction, and to enhance fixation, between the metal connecting pieces 30 and the non-required connection contacts, an insulating glue is used for insulation.

[0041] Insulating layer 40, which is located on the outer surfaces of the filter layer assembly 10 and the inner keel 20, is used to fix the filter layer assembly 10 and the inner keel 20 and play an insulating role. The carriers and materials connected in each layer are not easily loosened, are stable for a long time, and can be used durably. The toughness is strong and the temperature resistance is high during the cleaning process; it includes several insulating adhesives 41, and the insulating adhesives 41 are arranged on the two end faces of the electrostatic filter element structure composed of the filter layer assembly 10 and the inner keel 20; the lengths of the insulating adhesives 41 are different, and they are installed in a staggered and centrosymmetric manner on the end face of the filter layer assembly 10, and there are non-conductive and insulating parts on the contact surface connected to the outside. Preferably, several of the rubber strips 41 can be connected to all the filter layer assemblies 10 and the inner keel 20 in a linear state, and several other rubber strips 41 are connected to several of the filter layer assemblies 10 in a linear state, and the rubber strips with different lengths are arranged in a staggered manner; the thickness of the insulating adhesive 41 is 5 mm - 11 mm, and the coating thickness represents the adsorption force, the uniform pore size, and the increased adsorption polar area, so that each layer of material does not break under a pressure of 10 Mpa.

[0042] When used to fix each layer of the filter layer assembly 10, the insulating connection wires 50 made of rubber material are convenient for replacing the filter element and taking it. They increase the fixing bidirectionality for reinforcement connection and are convenient for moving the electrostatic filter element structure; there are at least two insulating connection wires 50, and the insulating connection wires 50 connect the metal connection pieces 30 and the filter layer assembly 10 together. The insulating connection wires 50 extend out from both ends of the filter layer assembly 10 and are fixedly connected together; the insulating connection wires 50 are made of rubber material, and the two ends can be buckled, so that the insulating connection wires 50 will not break away from the electrostatic filter element structure, and at the same time people can hold the insulating connection wires by hand and lift the electrostatic filter element structure.

[0043] When the present utility model is specifically implemented:

[0044] The working process of the filter element in the water of the closed fuel tank:

[0045] Step 1: Install the electrostatic filter element structure of the product of the present utility model on the equipment pipeline and standby.

[0046] Step 2: When it is necessary to filter the water-containing oil in the oil storage tank 1: The equipment starts to work. When the oil passes through the electrostatic filter element structure, the fiber paper 13 adsorbs the water in the oil until the paper is saturated. At this time, the electrostatic filter element structure in the electric field cannot work, and the filter element becomes a short-circuit state. At the same time, the water content detector 3 on the pipeline feeds back a signal to the controller PLC14. When the equipment receives that the water content exceeds 800 ppm, the electrostatic field is turned off. Although the fiber paper 13 has adsorbed a lot of water, it will not rot and the structure will not change. This is mainly because we have made metal connection piece connections and insulating adhesive bonding treatments.

[0047] Step 3, water removal starts: the temperature controller starts heating, heating to 60-75 degrees under negative pressure, allowing the water to evaporate quickly, and the active water molecules evaporate quickly on the surface of the negative pressure (vacuum tank 9 (mainly water evaporation), enter the heat exchange through the negative pressure pipe, become condensed water, enter the water storage tank, and automatically discharge when full. Enter the sewage pipe for further treatment and discharge.

[0048] Step 4, after N times of dehydration and purification, the moisture detector 3 is tested again, and the moisture content is detected to be below 500ppm, which proves that the fiber paper 13 has exchanged out the moisture absorbed in the fiber paper 13 through heat exchange. After another cycle of exchange, it is detected that the moisture content has reached 300ppm, which is in accordance with the provisions of GB / T511. The fiber paper 13 in the oil contains water to the initial state and can be used again, and can also adsorb impurities and moisture in the electric field.

[0049] Step 5, during the dehydration process, the impurities adsorbed on the surface of the fiber paper 13 are continuously removed by multiple flushing (the filter element for water inlet has no electric field support and the fiber surface has no adsorption force, so the impurities will fall off). After a period of time, they sink to the bottom of the equipment container. Before the equipment water content reaches the standard, the equipment is paused, and the container drain valve 8 is manually opened to discharge some of the dirty oil, and the fiber paper 13 is cleaned again. The fiber surface is basically restored to a new surface, ready for the next adsorption of impurities.

[0050] This filter element structure and equipment are used together to solve the problem of oil tanks in confined spaces, which are difficult to change oil, waste consumables, and cannot be stopped for replacement. Of course, it can also be used in other environments.

[0051] The combination of fiber structure and equipment structure can utilize current data processing to achieve intelligent work and data recording. It can also be combined with AI. There is no need to replace filter elements and new oil or clean the oil tank at will, causing secondary pollution, thus saving environment.

[0052] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electrostatic filter element structure containing fiber paper, characterized in that: include: A plurality of mutually sleeved filter layer components, the filter layer components are used to filter liquid, and the filter layer components are composed of a cathode sheet, a fiber paper anode layer, fiber paper, a fiber paper cathode layer, an anode sheet, and an outer keel connected in sequence; An inner keel, the inner keel is located in the center of the mutually sleeved filter layer assemblies and is used to support the filter layer assemblies; A plurality of metal connecting plates, wherein the metal connecting plates are used to fixedly connect the filter layer assembly to the inner keel, wherein several metal connecting plates are used to connect the inner keel to the anode plate, and other several metal connecting plates are used to connect the outer keel to the cathode plate; The insulating layer is located on the outer surface of the filter layer assembly and the inner keel, and is used to fix the filter layer assembly and the inner keel and to make them have an insulating effect.

2. The electrostatic filter element structure containing fiber paper according to claim 1, characterized in that: The insulating layer comprises a plurality of insulating adhesive strips, and the insulating adhesive is arranged on two end surfaces of the electrostatic filter element structure composed of the filter layer component and the inner keel.

3. The electrostatic filter element structure containing fiber paper according to claim 2, characterized in that: The insulating glue has different lengths, is staggered and centrally symmetrically installed on the end surface of the filter layer component, and has a non-conductive and insulating part on the contact surface connected to the outside.

4. The electrostatic filter element structure containing fiber paper according to claim 3, characterized in that: The thickness of the insulating glue is 5mm-11mm.

5. The electrostatic filter element structure containing fiber paper according to claim 1, characterized in that: It also includes at least two insulating connecting wires, which connect the metal connecting piece and the filter layer assembly together. The two ends of the insulating connecting wires extend out of the filter layer assembly and are fixedly connected together.

6. The electrostatic filter element structure containing fiber paper according to claim 5, characterized in that: The insulating connecting wire is made of rubber material.

7. The electrostatic filter element structure containing fiber paper according to claim 1, characterized in that: The thickness of the fiber paper anode layer is 8-15nm, and the thickness of the fiber paper cathode layer is 8-15nm.

8. The electrostatic filter element structure containing fiber paper according to claim 1, characterized in that: The fiber paper is an M-shaped continuous folding structure.

9. The electrostatic filter element structure containing fiber paper according to claim 1, characterized in that: The inner keel is a cylindrical structure.

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