Structure of a four-layer fuel filter composite paper

Abstract

The utility model discloses a structure of a fuel filter composite paper with a four-layer structure, which relates to the technical field of fuel filters, including a composite paper roll, the outer wall of which is wound with a composite paper body, and the composite paper body is sequentially provided with wood cellulose paper, high-precision melt-blown non-woven fabric, medium-precision melt-blown non-woven fabric and low-precision melt-blown non-woven fabric from the inside to the outside, the wood cellulose paper is connected to the high-precision melt-blown non-woven fabric through ultrasound, the high-precision melt-blown non-woven fabric is connected to the medium-precision melt-blown non-woven fabric through ultrasound, and the medium-precision melt-blown non-woven fabric is connected to the low-precision melt-blown non-woven fabric through ultrasound. The utility model has good filtering effect, improves the combustion efficiency of fuel, can protect core functional components such as fuel pumps and fuel injectors, and improves the cleanliness of fuel.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel filters, in particular to a fuel filter composite paper structure with a four-layer structure. Background Art

[0002] The function of the fuel filter is to filter out harmful particles and moisture in the engine's fuel and gas system to protect the oil pump nozzle, cylinder liner, piston ring, etc., reduce wear and avoid clogging. Composite paper is generally used in the fuel filter to filter impurities.

[0003] After searching, the Chinese patent publication number is CN202809390U, which discloses a fuel-saving filter paper for a fuel filter, and relates to a filter paper. It includes a paper filter paper body, and at least one side of the filter paper body is evenly coated with a coating, and the coating is a metal oxide material coating. The specific infrared electromagnetic wave activates, refines and separates impurities from the fuel, so that the fuel increases the oxygen dissolution rate, is easier to atomize and ignite, and burns more completely, so the power can be enhanced and the fuel saving effect can be achieved, and the total amount of harmful exhaust gas will also be reduced, which is conducive to environmental protection.

[0004] The prior art is similar to the composite paper mentioned above, but has poor filtering effect on impurities, cannot improve the cleanliness of the liquid, and has low combustion efficiency of the fuel, so there is room for improvement. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and propose a four-layer fuel filter composite paper structure. Its advantages are good filtering effect, improved fuel combustion efficiency, protection of core functional components such as fuel pumps and fuel injectors, and improved fuel cleanliness.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A four-layer fuel filter composite paper structure, comprising a composite paper roll, the outer wall of which is wound with a composite paper body, and the composite paper body is sequentially provided with wood cellulose paper, high-precision melt-blown non-woven fabric, medium-precision melt-blown non-woven fabric and low-precision melt-blown non-woven fabric from the inside to the outside;

[0008] The wood cellulose paper is connected to the high-precision meltblown nonwoven fabric through ultrasound, the high-precision meltblown nonwoven fabric is connected to the medium-precision meltblown nonwoven fabric through ultrasound, and the medium-precision meltblown nonwoven fabric is connected to the low-precision meltblown nonwoven fabric through ultrasound.

[0009] The utility model is further configured that the high-precision melt-blown non-woven fabric adopts polybutylene terephthalate melt-blown material.

[0010] The utility model is further configured that the high-precision meltblown non-woven fabric adopts 10 to 15 grams per square meter of meltblown material, and the filtration accuracy of the high-precision meltblown non-woven fabric is 8 to 10 microns.

[0011] The utility model is further configured that the medium-precision melt-blown non-woven fabric adopts polybutylene terephthalate melt-blown material.

[0012] The utility model is further configured that the medium-precision meltblown non-woven fabric adopts 25 to 30 grams per square meter of meltblown material, and the filtration accuracy of the high-precision meltblown non-woven fabric is 15 to 20 microns.

[0013] The utility model is further configured that the low-precision melt-blown non-woven fabric adopts polybutylene terephthalate melt-blown material.

[0014] The utility model is further configured that the medium-precision meltblown non-woven fabric adopts 45 to 50 grams per square meter of meltblown material, and the filtration accuracy of the high-precision meltblown non-woven fabric is 25 to 30 microns.

[0015] The utility model is further configured that the wood cellulose paper is connected to the high-precision melt-blown non-woven fabric through acrylic glue.

[0016] The beneficial effects of the utility model are as follows: the fuel filter composite paper includes wood cellulose paper, high-precision meltblown non-woven fabric, medium-precision meltblown non-woven fabric and low-precision meltblown non-woven fabric; it achieves the purpose of gradient filtration to a greater extent by placing meltblown non-woven fabrics of different precisions on the outside of the cellulose paper, intercepting large-sized particles at the outermost side, and the medium-precision meltblown non-woven fabric in the middle filters medium-sized particles, while the high-precision meltblown non-woven fabric on the inside is used to intercept finer particles, with good filtering effect, improving the combustion efficiency of the fuel, being able to protect core functional components such as the fuel pump and fuel injector, and improving the cleanliness of the fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a four-layer fuel filter composite paper structure proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the material composition structure of a four-layer fuel filter composite paper structure proposed by the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. Composite paper roll; 2. Composite paper body; 3. Wood cellulose paper; 4. High-precision meltblown non-woven fabric; 5. Medium-precision meltblown non-woven fabric; 6. Low-precision meltblown non-woven fabric. DETAILED DESCRIPTION

[0021] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent 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 therefore cannot be understood as a limitation on this patent.

[0024] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0025] Example 1

[0026] Reference Figure 1-3 A four-layer fuel filter composite paper structure comprises a composite paper roll 1, the outer wall of the composite paper roll 1 is wound with a composite paper body 2, characterized in that the composite paper body 2 is sequentially provided with wood cellulose paper 3, high-precision meltblown non-woven fabric 4, medium-precision meltblown non-woven fabric 5 and low-precision meltblown non-woven fabric 6 from the inside to the outside; the wood cellulose paper 3 is connected to the high-precision meltblown non-woven fabric 4 through ultrasound, the high-precision meltblown non-woven fabric 4 is connected to the medium-precision meltblown non-woven fabric 5 through ultrasound, and the medium-precision meltblown non-woven fabric 5 is connected to the low-precision meltblown non-woven fabric 6 through ultrasound.

[0027] The wood cellulose paper 3 is a traditional filter material and the basis of the entire filter medium. It provides a stable filter efficiency and a certain dust holding capacity level. Its structure is also suitable for subsequent filter processing and manufacturing.

[0028] In this embodiment, the high-precision meltblown non-woven fabric 4 adopts polybutylene terephthalate meltblown material; the high-precision meltblown non-woven fabric 4 adopts 10 to 15 grams per square meter of meltblown material, and the filtration accuracy of the high-precision meltblown non-woven fabric 4 is 8 to 10 microns. The high-precision meltblown non-woven fabric 4 mainly bears the pollutants not captured by the medium-precision meltblown non-woven fabric and the low-precision meltblown non-woven fabric 6.

[0029] Furthermore, the medium-precision meltblown non-woven fabric 5 adopts polybutylene terephthalate meltblown material; the medium-precision meltblown non-woven fabric 5 adopts 25 to 30 grams per square meter of meltblown material, and the filtration accuracy of the medium-precision meltblown non-woven fabric 5 is 15 to 20 microns. The medium-precision meltblown non-woven fabric 5 is used to capture medium-sized dust particles that the meltblown low-precision non-woven fabric 6 fails to capture.

[0030] It is worth mentioning that the low-precision meltblown non-woven fabric 6 adopts polybutylene terephthalate meltblown material; the low-precision meltblown non-woven fabric 6 adopts 45 to 50 grams per square meter of meltblown material, and the filtration accuracy of the low-precision meltblown non-woven fabric 6 is 25 to 30 microns. The low-precision meltblown non-woven fabric 6 mainly plays the role of filtering larger pollutants and undertakes most of the dust holding capacity of this material structure.

[0031] Example 2

[0032] A four-layer fuel filter composite paper structure, this embodiment makes the following improvements compared with embodiment 1: the wood cellulose paper 3 is connected to the high-precision melt-blown non-woven fabric 4 by acrylic glue, and the acrylic glue bonding connection method is simpler in process than ultrasonic welding, which improves the convenience of production.

[0033] Working principle: The fuel filter composite paper includes wood cellulose paper 3, high-precision meltblown non-woven fabric 4, medium-precision meltblown non-woven fabric 5 and low-precision meltblown non-woven fabric 6; it achieves the purpose of gradient filtration to the greatest extent by placing meltblown non-woven fabrics of different precisions on the outside of the cellulose paper 3, intercepting large-sized particles on the outermost side, the middle medium-precision meltblown non-woven fabric 5 filters medium-sized particles, and the high-precision meltblown non-woven fabric 4 on the inside is used to intercept finer particles.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A four-layer fuel filter composite paper structure, comprising a composite paper roll (1), wherein a composite paper body (2) is wound around the outer wall of the composite paper roll (1), characterized in that: The composite paper body (2) is provided with wood cellulose paper (3), high-precision meltblown nonwoven fabric (4), medium-precision meltblown nonwoven fabric (5) and low-precision meltblown nonwoven fabric (6) in sequence from the inside to the outside; The wood cellulose paper (3) is connected to the high-precision meltblown nonwoven fabric (4) through ultrasound, the high-precision meltblown nonwoven fabric (4) is connected to the medium-precision meltblown nonwoven fabric (5) through ultrasound, and the medium-precision meltblown nonwoven fabric (5) is connected to the low-precision meltblown nonwoven fabric (6) through ultrasound.

2. The structure of the four-layer fuel filter composite paper according to claim 1, characterized in that: The high-precision melt-blown nonwoven fabric (4) is made of polybutylene terephthalate melt-blown material.

3. The structure of the four-layer fuel filter composite paper according to claim 2, characterized in that: The high-precision meltblown nonwoven fabric (4) uses 10 to 15 grams per square meter of meltblown material, and the filtration accuracy of the high-precision meltblown nonwoven fabric (4) is 8 to 10 microns.

4. The structure of the four-layer fuel filter composite paper according to claim 1, characterized in that: The medium-precision melt-blown nonwoven fabric (5) is made of polybutylene terephthalate melt-blown material.

5. The structure of the four-layer fuel filter composite paper according to claim 4, characterized in that: The medium-precision meltblown nonwoven fabric (5) uses 25 to 30 grams per square meter of meltblown material, and the filtering accuracy of the medium-precision meltblown nonwoven fabric (5) is 15 to 20 microns.

6. The structure of the four-layer fuel filter composite paper according to claim 1, characterized in that: The low-precision melt-blown nonwoven fabric (6) is made of polybutylene terephthalate melt-blown material.

7. The structure of the four-layer fuel filter composite paper according to claim 6, characterized in that: The low-precision melt-blown non-woven fabric (6) uses 45 to 50 grams per square meter of melt-blown material, and the filtering accuracy of the low-precision melt-blown non-woven fabric (6) is 25 to 30 microns.

8. The structure of a four-layer fuel filter composite paper according to any one of claims 1 to 7, characterized in that: The wood cellulose paper (3) is connected to the high-precision melt-blown non-woven fabric (4) via acrylic glue.

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