A composite filter element structure for filtering diesel fuel in a fuel system

Abstract

The utility model relates to diesel oil filter technology field, concretely is a kind of composite filter element structure of filtering diesel oil in fuel system, including reinforcing frame, wrapping layer and bag hopper, the opening of bag hopper is fixedly connected in the bottom of reinforcing frame, the top opening of reinforcing frame is set with wrapping layer in the four around of reinforcing frame, bag hopper is made of composite material, composite material is respectively from outside to inside by transparent plastic net layer, first filter cotton layer, second filter cotton layer, first glass fiber fluffy felt layer, second glass fiber fluffy felt layer and transparent plastic net layer composition. The composite filter element structure of filtering diesel oil in fuel system significantly improves the effect of filtering diesel oil in fuel system, prolongs the service life of filter element, reduces use cost and maintenance workload, meets the higher requirement of fuel system to diesel oil filtration.

Description

Technical Field

[0001] This utility model relates to the field of diesel filtration technology, specifically to a composite filter element structure for filtering diesel fuel in a fuel system. Background Technology

[0002] Currently, most diesel fuel filters in fuel systems use traditional filtration methods. These methods are typically simple in structure, and the filter materials and structures used are relatively limited, making it difficult to achieve the desired filtration effect.

[0003] Traditional filtration methods, due to limitations in filter element structure and materials, cannot effectively filter impurities of different particle sizes in diesel fuel. For some tiny particulate impurities, traditional filters are difficult to intercept effectively, causing some impurities to still enter the fuel system with the diesel fuel, affecting the purity of the fuel and consequently affecting the engine's combustion efficiency and power performance.

[0004] During the filtration process, impurities tend to accumulate rapidly on the surface of traditional filter elements, causing them to become clogged. Once clogged, diesel fuel flow is obstructed, which not only reduces filtration efficiency but also increases the operating pressure on the fuel system. Furthermore, because the materials and structure of traditional filter elements cannot effectively cope with the accumulation of impurities, their service life is relatively short, requiring frequent replacements, which increases operating costs and maintenance workload.

[0005] In view of the above-mentioned problems of traditional filtration methods, improving the filtration effect of diesel in the fuel system and extending the service life of the filter element have become key issues that urgently need to be addressed. This utility model aims to provide a new composite filter element structure to overcome the shortcomings of the prior art and meet the higher requirements of the fuel system for diesel filtration. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a composite filter element structure for filtering diesel fuel in a fuel system. This composite filter element structure significantly improves the diesel fuel filtration efficiency in the fuel system, extends the filter element's service life, reduces operating costs and maintenance workload, and meets the higher requirements of fuel systems for diesel fuel filtration.

[0007] The technical solution of this utility model is as follows:

[0008] A composite filter element structure for filtering diesel fuel in a fuel system includes a steel frame, a wrapping layer, and a bag hopper. The opening of the bag hopper is fixedly connected to the bottom of the steel frame, and the top of the steel frame is open. A wrapping layer is provided around the steel frame. The bag hopper is made of a composite material, which consists of a transparent plastic mesh layer, a first filter cotton layer, a second filter cotton layer, a first glass fiber felt layer, a second glass fiber felt layer, and a transparent plastic mesh layer from the outside to the inside.

[0009] The transparent plastic mesh layer, the first filter cotton layer, the second filter cotton layer, the first glass fiber felt layer, the second glass fiber felt layer, and the transparent plastic mesh layer of the composite material are connected into a whole by quilting.

[0010] The steel reinforcement frame can be any of a square frame, a circular frame, or an oval frame.

[0011] The wrapping layer is made of Oxford cloth.

[0012] The thickness of the first filter cotton layer is 6-8mm.

[0013] The thickness of the second filter cotton layer is 2-3mm.

[0014] The thickness of the first glass fiber felt layer is 90-100 mm.

[0015] The thickness of the second glass fiber felt layer is 40-50mm.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model discloses a composite filter element structure for filtering diesel fuel in a fuel system. The composite filter element structure for filtering diesel fuel in this fuel system is made of multi-layer composite material, including a transparent plastic mesh layer, a filter cotton layer and a glass fiber felt layer. It can effectively filter impurities of different particle sizes in diesel fuel in a graded manner, significantly improve the filtration effect, and ensure the purity of the fuel.

[0018] 2. The present invention discloses a composite filter element structure for filtering diesel fuel in a fuel system. The composite filter element structure for filtering diesel fuel in a fuel system is composed of a first filter cotton layer, a second filter cotton layer, a first glass fiber felt layer, and a second glass fiber felt layer. The composite filter element can more effectively intercept small particulate impurities in diesel fuel, reduce the possibility of impurities entering the fuel system, thereby protecting the engine and improving combustion efficiency and power performance.

[0019] 3. The present invention discloses a composite filter element structure for filtering diesel fuel in a fuel system. The multi-layer structure and material selection of the composite filter element structure for filtering diesel fuel in this fuel system help reduce the rapid accumulation of impurities on the filter element surface, reduce the risk of filter element clogging, help maintain the smooth flow of diesel fuel, improve filtration efficiency, and reduce the operating pressure of the fuel system.

[0020] 4. The present invention discloses a composite filter element structure for filtering diesel fuel in a fuel system. Because the composite filter element can more effectively deal with the accumulation of impurities, and its material and structural design are reasonable, it can significantly extend the service life of the filter element, reduce the frequency of filter element replacement, and reduce the cost of use and maintenance. Attached Figure Description

[0021] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0022] In the attached diagram:

[0023] Figure 1 This is a three-dimensional structural diagram of a composite filter element structure for filtering diesel fuel in a fuel system according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the composite material structure of a composite filter element for filtering diesel fuel in a fuel system according to an embodiment of the present invention.

[0025] The components represented by the various reference numerals in the diagram are:

[0026] This utility model comprises: 1. a steel frame, 2. a wrapping layer, 3. a bag, 4. quilting thread, 5. a transparent plastic mesh layer, 6. a first filter cotton layer, 7. a second filter cotton layer, 8. a first glass fiber felt layer, and 9. a second glass fiber felt layer. Detailed Implementation

[0027] like Figure 1 As shown, the composite filter element structure for filtering diesel fuel in the fuel system mainly consists of a steel frame 1, a wrapping layer 2, and a bag hopper 3.

[0028] The steel frame 1 serves as the supporting frame for the entire composite filter element structure, used to fix this composite filter element structure to the frame of the usage environment. It is made of high-strength carbon steel, which has good resistance to deformation. Its shape can be square, round or elliptical, and its specific size can be adjusted according to the frame of the usage environment. For example, the side length can be customized within the range of 100-500mm according to actual needs, providing reliable support for the composite material structure.

[0029] The wrapping layer 2 is made of Oxford cloth and is used around the bag hopper 3 to ensure that the filter cotton fiber or glass fiber felt does not leak out, thus playing a protective and sealing role. Its material is 600D Oxford cloth, which has wear-resistant and tear-resistant properties, and its weight is 200-250g / m².

[0030] Bag hopper 3 is made of composite material and is the core filtration component of this composite filter element structure, such as... Figure 2 As shown, the composite material consists of the following layers from the outside to the inside:

[0031] The transparent plastic mesh layer 5 is located on the outermost and innermost layers, which increases the overall structural stability without affecting the filtration effect. It is made of transparent polypropylene (PP) plastic with square mesh shape, pore size of 0.5-1mm, wire diameter of 0.2-0.3mm, and thickness of 0.8-1.2mm, which has a certain strength and flexibility. This thickness range ensures that the plastic mesh layer has sufficient strength to support other filter layers without adding unnecessary weight and cost due to excessive thickness, while also ensuring that diesel fuel can pass through smoothly.

[0032] The first filter cotton layer 6 has a thickness of 6-8mm and is made of high-quality polyester fiber filter cotton material. It has good filtration performance and can initially filter larger particulate impurities in diesel fuel. Its fiber diameter is 5-10μm, porosity is 80%-85%, and air permeability is 200-300L / m²·s.

[0033] The second filter cotton layer 7 has a thickness of 2-3mm and works in conjunction with the first filter cotton layer 6 to perform finer filtration on the diesel fuel that has undergone preliminary filtration, further improving the filtration effect. Its fiber diameter is 3-6μm, porosity is 85%-90%, and air permeability is 300-400L / m²·s.

[0034] The first glass fiber felt layer 8 has a thickness of 90-100mm. The glass fiber felt has a large specific surface area and good adsorption performance, which can effectively adsorb impurities in oil and is an important part of the filtration process. Its glass fiber diameter is 3-5μm, its specific surface area is 800-1000m² / g, and its oil content (after adsorbing diesel) can reach 5-8 times its own weight.

[0035] The second glass fiber felt layer 9 has a thickness of 40-50mm and works synergistically with the first glass fiber felt layer 8 to enhance the adsorption capacity of impurities in diesel fuel and improve the filtration effect. Its glass fiber diameter is 2-4μm, its specific surface area is 1000-1200m² / g, and its oil content (after adsorbing diesel fuel) can reach 6-9 times its own weight.

[0036] The quilting thread 4 is used to quilt and connect the transparent plastic mesh layer 5, the first filter cotton layer 6, the second filter cotton layer 7, the first glass fiber felt layer 8, and the second glass fiber felt layer 9 into a whole composite material, ensuring a tight bond between the layers and preventing delamination during use; its material is high-strength polyester thread with a diameter of 0.1-0.2mm and a quilting spacing of 20-30mm.

[0037] The manufacturing process of the composite filter element structure for filtering diesel fuel in the fuel system is as follows:

[0038] Composite material structure preparation: The transparent plastic mesh layer 5, the first filter cotton layer 6, the second filter cotton layer 7, the first glass fiber felt layer 8, and the second glass fiber felt layer 9 are laid out flat together in order from the outside to the inside; the laid-out layers are quilted with quilting thread 4 to fix them into a whole bag 3. When quilting, the operation is carried out according to the set quilting spacing and thread diameter to ensure that the connection between the layers is firm.

[0039] Composite material structure forming: Fold the quilted composite material in half to align the unjoined edges on the left and right sides; use a sewing machine to sew the unjoined edges on the left and right sides after folding to form a bag hopper 3 similar in shape to a bag filter hopper; when sewing, use high-strength polyester thread of the same material as the quilting thread 4, and the stitch length is 2-3mm.

[0040] Connection to the steel frame: Sew the opening of the sewn bag 3 to the square steel frame 1 to ensure a firm connection and prevent the bag 3 from falling off during use. Use double stitching to ensure sewing strength.

[0041] Wrap the Oxford cloth: Use Oxford cloth 2 to wrap around the square steel frame 1 of the sewn bag 3; use a sewing machine again to sew the wrapped Oxford cloth 2 to ensure that the Oxford cloth 2 is tightly wrapped around the square steel frame 1 and the bag 3, so as to protect and seal it; when sewing, use high-strength polyester thread and the stitch length is 2-3mm.

[0042] When diesel fuel enters this composite filter structure, it first passes through the second glass fiber felt layer 9 and the first glass fiber felt layer 8. The glass fiber felt, with its large specific surface area and excellent adsorption properties, adsorbs most of the impurities in the diesel fuel. Then, the diesel fuel sequentially passes through the second filter cotton layer 7 and the first filter cotton layer 6. These two layers of filter cotton provide finer filtration, further removing tiny particulate impurities from the diesel fuel. Finally, the filtered diesel fuel flows out through the transparent plastic mesh layer 5, completing the entire filtration process.

[0043] The composite filter element structure of this fuel system significantly improves the filtration efficiency of diesel fuel, extends the service life of the filter element, reduces operating costs and maintenance workload, and meets the higher requirements of the fuel system for diesel fuel filtration.

Claims

1. A composite filter element structure for filtering diesel fuel in a fuel system, characterized in that, It includes a steel frame (1), a wrapping layer (2) and a bag (3). The opening of the bag (3) is fixedly connected to the bottom of the steel frame (1). The top of the steel frame (1) is open. The wrapping layer (2) is provided around the steel frame (1). The bag (3) is made of composite material. The composite material consists of a transparent plastic mesh layer (5), a first filter cotton layer (6), a second filter cotton layer (7), a first glass fiber felt layer (8), a second glass fiber felt layer (9) and a transparent plastic mesh layer (5) from the outside to the inside.

2. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The transparent plastic mesh layer (5), the first filter cotton layer (6), the second filter cotton layer (7), the first glass fiber felt layer (8), the second glass fiber felt layer (9) and the transparent plastic mesh layer (5) of the composite material are connected as a whole by quilting lines (4).

3. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The steel reinforcement frame (1) can be any one of a square frame, a circular frame, or an elliptical frame.

4. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The wrapping layer (2) is made of Oxford cloth.

5. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The thickness of the first filter cotton layer (6) is 6-8 mm.

6. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The thickness of the second filter cotton layer (7) is 2-3 mm.

7. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The thickness of the first glass fiber fluffy felt layer (8) is 90-100 mm.

8. The composite filter element structure for filtering diesel fuel in a fuel system according to claim 1, characterized in that, The thickness of the second glass fiber fluffy felt layer (9) is 40-50 mm.

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