Integral large flow filter cartridge

Abstract

The utility model discloses an integrated large flow filter core, the filter core includes inner framework cylinder, outer framework cylinder, filter cylinder, first end cover and second end cover, the filter cylinder is folded from filter material, the filter cylinder coaxially sets between inner framework cylinder and outer framework cylinder, the inner surface of filter cylinder and the outer surface of inner framework cylinder are closely contacted, the outer surface of filter cylinder and the inner surface of outer framework cylinder are closely contacted, the first end cover sets up one end of filter core and is connected with inner framework cylinder, filter cylinder and outer framework cylinder from inside to outside in proper order, and the second end cover sets up the other end of filter core and is connected with inner framework cylinder, filter cylinder and outer framework cylinder from inside to outside in proper order. The utility model improves the integral rigidity, the bending resistance and the connecting strength of filter core to increase the length of filter core, and obtains integrated large flow filter core.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically to an integrated high-flow filter element. Background Technology

[0002] In the field of high-flow filtration, traditional 60-inch high-flow filter cartridges often adopt a splicing structure design, which typically involves joining three 20-inch cartridges or one 20-inch and one 40-inch high-flow filter cartridge together using a heat-fusion process. The end caps of individual high-flow filter cartridges are also connected and fixed to the frame using a heat-fusion process. However, this splicing structure has significant drawbacks in practical use: 1. Poor stability of the skeleton structure: The joints of the spliced ​​skeleton are the weak points of the structure. During the filtration process, the fluid pressure acts on the surface of the skeleton, which can easily lead to uneven stress at the joints. After long-term use, there is a risk of skeleton separation, peeling or even breakage. 2. Filtration effect is affected: When the filter element is separated or broken, gaps will appear in the internal filtration channels, causing unfiltered fluid to flow out directly from the gaps, which is called leakage. This severely reduces the filtration effect and fails to meet the filtration requirements. 3. Defects in end cap connection process: Currently, the industry generally uses hot melt welding process to splice the end cap and the frame. During the hot melt welding process, problems such as uneven welding temperature and low welding pressure control accuracy are prone to occur, resulting in insufficient connection strength between the end cap and the frame. Under fluid impact and long-term use, the end cap is prone to detach from the frame, further aggravating the problems of leakage and filter failure. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an integrated high-flow filter element, which improves the overall rigidity, bending resistance and connection strength of the filter element, thereby increasing the length of the filter element and obtaining an integrated high-flow filter element.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An integrated high-flow filter element, the filter element comprising an inner skeleton cylinder, an outer skeleton cylinder, a filter cylinder, a first end cap, and a second end cap; The inner skeleton cylinder has an internal fluid channel hole, and the outer skeleton cylinder has an external fluid channel hole. The inner skeleton cylinder is coaxially arranged inside the outer skeleton cylinder. The filter cylinder is formed by folding filter media. The filter cylinder is coaxially arranged between the inner skeleton cylinder and the outer skeleton cylinder. The inner surface of the filter cylinder is in close contact with the outer surface of the inner skeleton cylinder, and the outer surface of the filter cylinder is in close contact with the inner surface of the outer skeleton cylinder. The first end cap is located at one end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside. The second end cap is located at the other end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside. The first end cap has a water inlet facing the middle channel of the inner skeleton cylinder.

[0005] As a preferred technical solution, the inner skeleton cylinder is integrally formed without splicing structure, and the outer skeleton cylinder is integrally formed without splicing structure.

[0006] As a preferred technical solution, the internal fluid channel holes are square holes, and the internal fluid channel holes are evenly arranged in rows along the axial direction of the inner skeleton cylinder, with several rows of internal fluid channel holes evenly distributed along the circumference of the inner skeleton cylinder.

[0007] As a preferred technical solution, the external fluid channel holes are elongated holes, and the external fluid channel holes are evenly arranged in rows along the axial direction of the outer skeleton cylinder, with several rows of external fluid channel holes evenly distributed along the circumference of the outer skeleton cylinder.

[0008] As a preferred technical solution, the first end cap is disposed at one end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside through infrared heating; the second end cap is disposed at the other end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside through infrared heating.

[0009] As a preferred technical solution, the first end cap is provided with a handle that spans the water inlet.

[0010] As a preferred technical solution, the filter element is preferably configured as a 60-inch integrated high-flow filter element, the length of the filter element is 1524±20 mm, and the diameter of the filter element is 152±10 mm.

[0011] The beneficial effects of this utility model are as follows: If existing technology were to directly manufacture a one-piece 60-inch high-flow filter cartridge, the overall rigidity and bending resistance would become critical issues as the length of the cartridge increases. Traditional filter cartridge inner skeletons might not be able to effectively support the filter media at such a length, causing the cartridge to bend or even collapse under fluid impact. The folding width and spacing of the filter media must also be absolutely uniform to prevent affecting the overall filtration efficiency and service life, which places high demands on the precision of the folding machine. The connection strength between the end caps, skeleton, and filter media is also a test. The end caps of the filter cartridge are the main components that bear the pressure of the inlet and outlet water. At a length of 60 inches, the connection strength between the end caps and the filter cartridge tube needs to be far greater than that of 20-inch and 40-inch cartridges, so they need to withstand higher axial pressure to prevent them from falling off due to pressure impact.

[0012] This invention features a filter cylinder formed by folding filter media, tightly positioned between an inner frame cylinder and an outer frame cylinder. The first and second end caps are sequentially connected to the inner frame cylinder, filter cylinder, and outer frame cylinder from the inside out via infrared heating. The inner frame cylinder is integrally formed without any splicing structure, with internal fluid channel holes evenly arranged in rows along the axial direction of the inner frame cylinder, and several rows of internal fluid channel holes evenly distributed along the circumference of the inner frame cylinder. Similarly, the outer frame cylinder is integrally formed without any splicing structure, with elongated external fluid channel holes evenly arranged in rows along the axial direction of the outer frame cylinder, and several rows of external fluid channel holes evenly distributed along the circumference of the outer frame cylinder. This filter element structure improves the overall rigidity, bending resistance, and connection strength of the filter element. Therefore, this utility model can be directly designed as a 60-inch high-flow filter element without the need for a splicing structure, thereby avoiding the risk of skeleton separation, peeling and breakage caused by uneven stress at the splicing points of spliced ​​filter elements. It improves the structural stability of the filter element during long-term use and is especially suitable for scenarios with high requirements for filter element structural stability and filtration effect, such as water treatment and industrial fluid filtration. Attached Figure Description

[0013] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration: Figure 1 This is a schematic diagram of the integrated high-flow filter element of this utility model; Figure 2 This is an exploded view of the integrated high-flow filter element of this utility model; Figure 3 This is a schematic diagram of the internal skeleton cylinder in this utility model; Figure 4 This is a schematic diagram of the outer skeleton cylinder in this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0015] like Figures 1 to 4 The present invention relates to an integrated high-flow filter element, which includes an inner skeleton cylinder 1, an outer skeleton cylinder 2, a filter cylinder 3, a first end cap 4, and a second end cap 5.

[0016] The inner skeleton cylinder 1 has an internal fluid channel hole 1a, and the outer skeleton cylinder 2 has an external fluid channel hole 2a. The inner skeleton cylinder 1 is coaxially disposed inside the outer skeleton cylinder 2. Figure 3As shown, the inner skeleton cylinder 1 is integrally formed without splicing. The inner fluid channel holes 1a are square holes, and the inner fluid channel holes 1a are evenly arranged in rows along the axial direction of the inner skeleton cylinder 1. Several rows of inner fluid channel holes 1a are evenly distributed along the circumference of the inner skeleton cylinder 1. Figure 4 As shown, the outer skeleton cylinder 2 is integrally formed without splicing. The external fluid channel holes 2a are elongated holes, and the external fluid channel holes 2a are evenly arranged in rows along the axial direction of the outer skeleton cylinder 2. Several rows of external fluid channel holes 2a are evenly distributed along the circumference of the outer skeleton cylinder 2. The fluid channel holes on the inner skeleton cylinder 1 and the outer skeleton cylinder 2 are evenly arranged axially rather than staggered, which improves the rigidity and bending resistance of the inner skeleton cylinder 1 and the outer skeleton cylinder 2.

[0017] The filter cylinder 3 is formed by folding filter media. The filter cylinder 3 is coaxially disposed between the inner frame cylinder 1 and the outer frame cylinder 2. The inner surface of the filter cylinder 3 is in close contact with the outer surface of the inner frame cylinder 1, and the outer surface of the filter cylinder 3 is in close contact with the inner surface of the outer frame cylinder 2. The filter media in this invention can be folded in a uniform folding pattern as shown in the figure, or in a folding pattern as shown in patents CN202376858U, US6598749B2, US6315130B1, and US5543047A.

[0018] The first end cap 4 is located at one end of the filter element and is connected to the inner skeleton cylinder 1, the filter cylinder 3 and the outer skeleton cylinder 2 in sequence from the inside to the outside. The second end cap 5 is located at the other end of the filter element and is connected to the inner skeleton cylinder 1, the filter cylinder 3 and the outer skeleton cylinder 2 in sequence from the inside to the outside. The first end cap 4 has a water inlet 4a that faces the middle channel of the inner skeleton cylinder 1.

[0019] The connection between the first end cap 4 and the second end cap 5 and the inner frame cylinder 1, the filter cylinder 3, and the outer frame cylinder 2 is preferably achieved by infrared heating: the first end cap 4 is located at one end of the filter element and is connected to the inner frame cylinder 1, the filter cylinder 3, and the outer frame cylinder 2 sequentially from the inside out through infrared heating; the second end cap 5 is located at the other end of the filter element and is connected to the inner frame cylinder 1, the filter cylinder 3, and the outer frame cylinder 2 sequentially from the inside out through infrared heating. By replacing the traditional hot-melt welding process with infrared welding, infrared heating offers the advantages of uniform heating and high temperature control precision, enabling the connection points of the first end cap 4 and the second end cap 5 with the inner frame cylinder 1, the filter cylinder 3, and the outer frame cylinder 2 to fully fuse and bond, resulting in a welded joint with high strength and good sealing performance.

[0020] To facilitate operations such as replacing the filter element, the first end cover 4 is provided with a handle 4b that spans the water inlet 4a, and the handle 4b is integrally formed with the end cover 4.

[0021] This invention improves the overall rigidity, bending resistance, and connection strength of the filter element. Therefore, this invention can be directly designed as a high-flow filter element without the need for a splicing structure, such as a 60-inch (filter element length is 1524±20 mm, filter element diameter is 152±10 mm) high-flow filter element. Here, the filter element diameter refers to the diameter of the outer skeleton.

[0022] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An integrated high-flow-rate filter element, characterized in that: The filter element includes an inner skeleton cylinder, an outer skeleton cylinder, a filter cylinder, a first end cap, and a second end cap. The inner skeleton cylinder has an internal fluid channel hole, and the outer skeleton cylinder has an external fluid channel hole. The inner skeleton cylinder is coaxially arranged inside the outer skeleton cylinder. The filter cylinder is formed by folding filter media. The filter cylinder is coaxially arranged between the inner skeleton cylinder and the outer skeleton cylinder. The inner surface of the filter cylinder is in close contact with the outer surface of the inner skeleton cylinder, and the outer surface of the filter cylinder is in close contact with the inner surface of the outer skeleton cylinder. The first end cap is located at one end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside. The second end cap is located at the other end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside. The first end cap has a water inlet facing the middle channel of the inner skeleton cylinder. The inner skeleton cylinder is integrally formed without splicing structure, and the outer skeleton cylinder is integrally formed without splicing structure; The internal fluid channel holes are square holes, and the internal fluid channel holes are evenly arranged in rows along the axial direction of the inner skeleton cylinder, with several rows of internal fluid channel holes evenly distributed along the circumference of the inner skeleton cylinder; the external fluid channel holes are elongated holes, and the external fluid channel holes are evenly arranged in rows along the axial direction of the outer skeleton cylinder, with several rows of external fluid channel holes evenly distributed along the circumference of the outer skeleton cylinder.

2. The integrated high-flow filter element according to claim 1, characterized in that: The first end cap is located at one end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside through infrared heating; the second end cap is located at the other end of the filter element and is connected to the inner skeleton cylinder, the filter cylinder and the outer skeleton cylinder in sequence from the inside to the outside through infrared heating.

3. The integrated high-flow filter element according to claim 1, characterized in that: The first end cap is provided with a handle that spans the water inlet.

4. The integrated high-flow filter element according to any one of claims 1 to 3, characterized in that: The length of the filter element is 1524±20 mm, and the diameter of the filter element is 152±10 mm.

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