Structure of fuel filter composite paper with supporting layer

Abstract

The utility model discloses a fuel filter composite paper structure with a supporting layer, which relates to the technical field of fuel filter composite paper and comprises a winding drum, and a composite paper body is wound on the outer wall of the winding drum. The composite paper body is sequentially provided with wood cellulose paper, a high-precision melt-blown non-woven fabric, a supporting layer and a low-precision melt-blown non-woven fabric from inside to outside; the wood cellulose paper is connected with the high-precision melt-blown non-woven fabric through ultrasonic waves, the high-precision melt-blown non-woven fabric is connected with the supporting layer through ultrasonic waves, and the supporting layer is connected with the low-precision melt-blown non-woven fabric through ultrasonic waves. The supporting layer is arranged between the low-precision melt-blown non-woven fabric and the high-precision melt-blown non-woven fabric, so that a buffering dirt holding space can be provided, the dust holding capacity of the filter material is more effectively improved, and compared with traditional composite paper, the dust holding capacity is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel filter composite paper, in particular to a structure of fuel filter composite paper with a supporting layer. 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, which can be easily filled with impurities during filtering, resulting in reduced filtering effect. The composite paper needs to be replaced frequently, which increases the maintenance cost of the vehicle. Therefore, 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 structure of a composite paper with a support layer for a fuel filter. Its advantage is that a support layer is placed between the low-precision meltblown non-woven fabric and the high-precision meltblown non-woven fabric, which can provide a buffered dirt-holding space and more effectively improve the dust holding capacity of the filter material. Compared with traditional composite paper, its dust holding capacity is significantly improved.

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

[0007] A structure of composite paper for a fuel filter with a support layer comprises a winding drum, 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 meltblown nonwoven fabric, a support layer and low-precision meltblown nonwoven fabric from the inside to the outside; 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 support layer through ultrasound, and the support layer is connected to the low-precision meltblown nonwoven fabric through ultrasound.

[0008] The utility model is further configured that the high-precision melt-blown non-woven fabric is made of polybutylene terephthalate melt-blown material.

[0009] The utility model is further configured that the high-precision meltblown non-woven fabric adopts 10 to 30 grams per square meter of meltblown material.

[0010] The utility model is further configured that the support layer is made of woven polyester fiber material.

[0011] The utility model is further configured that the support layer is made of woven polyamide material.

[0012] The utility model is further configured that the mesh size of the support layer is 300 to 400 microns.

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

[0014] The utility model is further configured that the low-precision meltblown non-woven fabric adopts 50 to 100 grams per square meter of meltblown material.

[0015] The beneficial effects of the utility model are as follows: by placing meltblown non-woven fabrics of different precisions on the outside of the wood cellulose paper, the purpose of gradient filtration can be achieved to a greater extent, large-sized particles are intercepted on the outermost side, and the high-precision meltblown non-woven fabric on the inside is used to intercept finer particles. At the same time, a support layer is placed between the low-precision meltblown non-woven fabric and the high-precision meltblown non-woven fabric, which can provide a buffered dirt-holding space and more effectively improve the dust holding capacity of the filter material. Compared with traditional composite paper, the dust holding capacity is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a composite paper structure of a fuel filter with a support layer proposed by the utility model;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of a composite paper structure of a fuel filter with a support layer proposed by the utility model;

[0018] Figure 3 The utility model provides a cross-sectional structural schematic diagram of a composite paper structure of a fuel filter with a support layer.

[0019] In the figure: 1. Winding drum; 2. Composite paper body; 3. Low-precision meltblown non-woven fabric; 4. Support layer; 5. High-precision meltblown non-woven fabric; 6. Wood cellulose paper. DETAILED DESCRIPTION

[0020] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] Example 1

[0025] Reference Figure 1-3 A structure of a composite paper for a fuel filter with a support layer comprises a winding drum 1, a composite paper body 2 is wound on the outer wall of the winding drum 1, and the composite paper body 2 is sequentially provided with wood cellulose paper 6, a high-precision meltblown non-woven fabric 5, a support layer 4 and a low-precision meltblown non-woven fabric 3 from the inside to the outside; the wood cellulose paper 6 is connected to the high-precision meltblown non-woven fabric 5 through ultrasound, the high-precision meltblown non-woven fabric 5 is connected to the support layer 4 through ultrasound, and the support layer 4 is connected to the low-precision meltblown non-woven fabric 3 through ultrasound; the wood cellulose paper 6 is used as a traditional filter material and as the basis of the entire filter medium, providing a stable filtration efficiency and a part of the dust holding capacity level, and its structure is also suitable for the subsequent processing and manufacturing of filters.

[0026] In this embodiment, the high-precision meltblown non-woven fabric 5 is made of polybutylene terephthalate meltblown material; the high-precision meltblown non-woven fabric 5 uses 10 to 30 grams per square meter of meltblown material, and the high-precision layer of meltblown non-woven fabric 5 mainly bears the pollutants not captured by the low-precision meltblown non-woven fabric 3.

[0027] Furthermore, the support layer 4 is woven from polyester fiber material; the mesh size of the support layer 4 is 300 to 400 microns, which does not have a filtering effect, but it provides a pollution-receiving space between the high-precision meltblown non-woven fabric 2 and the low-precision meltblown non-woven fabric 3, which can store most of the particulate pollutants.

[0028] It is worth mentioning that the low-precision meltblown non-woven fabric 3 is made of polybutylene terephthalate meltblown material; the low-precision meltblown non-woven fabric 3 uses 50 to 100 grams per square meter of meltblown material. The low-precision meltblown non-woven fabric 3 mainly plays the role of filtering larger pollutants and undertakes most of the dust holding capacity of this material structure.

[0029] Example 2

[0030] A four-layer fuel filter composite paper structure, this embodiment makes the following improvements compared with embodiment 1: the support layer 4 is woven from a polyamide material; the support layer 4 woven from the polyamide material has a larger mesh size, which is convenient for storing more particulate pollutants.

[0031] Working principle: When in use, by placing meltblown non-woven fabrics of different precisions on the outside of the wood cellulose paper 6, the purpose of gradient filtration can be achieved to the greatest extent, and large-sized particles are intercepted on the outermost side, while the high-precision meltblown non-woven fabric 5 on the inside is used to intercept finer particles. At the same time, a support layer 4 is placed between the low-precision meltblown non-woven fabric 3 and the high-precision meltblown non-woven fabric 5, which can provide a buffered dirt-receiving space and more effectively improve the dust holding capacity of the filter material. Compared with traditional composite paper, it has a very significant improvement in dust holding capacity.

[0032] 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 structure of composite paper for a fuel filter with a support layer, comprising a winding drum (1), wherein a composite paper body (2) is wound around the outer wall of the winding drum (1), characterized in that: The composite paper body (2) is provided with wood cellulose paper (6), high-precision melt-blown non-woven fabric (5), a support layer (4) and low-precision melt-blown non-woven fabric (3) in sequence from the inside to the outside; The wood cellulose paper (6) is connected to the high-precision meltblown nonwoven fabric (5) through ultrasound, the high-precision meltblown nonwoven fabric (5) is connected to the support layer (4) through ultrasound, and the support layer (4) is connected to the low-precision meltblown nonwoven fabric (3) through ultrasound.

2. The structure of the composite paper for fuel filter with a support layer according to claim 1, characterized in that: The high-precision melt-blown nonwoven fabric (5) is made of polybutylene terephthalate melt-blown material.

3. The structure of the composite paper for fuel filter with a support layer according to claim 2, characterized in that: The high-precision meltblown nonwoven fabric (5) is made of 10 to 30 grams per square meter of meltblown material.

4. The structure of the composite paper for fuel filter with a support layer according to claim 1, characterized in that: The support layer (4) is made of woven polyester fiber material.

5. The structure of the composite paper for fuel filter with a support layer according to claim 1, characterized in that: The support layer (4) is made of woven polyamide material.

6. The structure of the composite paper for fuel filter with a support layer according to claim 4 or 5, characterized in that: The mesh size of the support layer (4) is 300 to 400 microns.

7. The structure of the composite paper for fuel filter with a support layer according to claim 1, characterized in that: The low-precision melt-blown non-woven fabric (3) is made of polybutylene terephthalate melt-blown material.

8. The structure of the composite paper for fuel filter with a support layer according to claim 7, characterized in that: The low-precision meltblown nonwoven fabric (3) is made of 50 to 100 grams per square meter of meltblown material.

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