Novel high-strength wire-wound screen pipe inner supporting structure

Abstract

The utility model relates to the technical field of wire-wound screen pipe production, in particular to a novel high-strength wire-wound screen pipe inner supporting structure which comprises a central round pipe, thorns are evenly distributed and welded on the periphery of the outer portion of the central round pipe, through holes are formed in the portions, without the thorns, of the central round pipe, and a wire-wound screen pipe product is manufactured by winding and welding wedge-shaped wires on the outer portion of the supporting structure. The strength of the wire-wound screen pipe is greatly improved, and in some special applications, the situation of material leakage caused by deformation of the wire-wound screen pipe due to bridging among the filter elements or other external force influences is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of production of wire-wound screen pipes, in particular to a novel high-strength wire-wound screen pipe inner supporting structure. Background Art

[0002] Wire wrap screens are mainly used in many fields such as liquid-solid separation, liquid filtration and liquid distribution. The interception accuracy of wire wrap screens is mainly achieved by the uniform distribution of the wire wrap screens. When the wire wrap screens are deformed due to filter cake bridging, external force extrusion and bending stress, the size of the gaps in the wire wrap screens will change, resulting in changes in filtration accuracy and leakage, affecting the use effect. The support structure of a conventional screen tube consists of a number of independent supporting ribs as a skeleton. When the screen tube is deformed, the supporting ribs are deformed first and the gap accuracy can no longer be guaranteed. Therefore, this field urgently needs to develop a high-strength wire wrap screen tube internal support structure to ensure a relatively stable arrangement of the wedge wire material, thereby ensuring the stability of the gap accuracy. Summary of the invention

[0003] In order to improve the overall strength of the wire wound screen and ensure the stability of its gap accuracy, the utility model provides a new high-strength wire wound screen inner support structure, which solves the problem of low strength of the existing wire wound screen and deformation of the wire wound screen resulting in the inability to ensure gap accuracy and causing material leakage.

[0004] To achieve the above purpose, the solution of the utility model is to provide a new type of high-strength wire-wound screen pipe inner support structure, including a central circular tube, thorns evenly distributed axially and circumferentially on the outside of the central circular tube, and radial through holes arranged on the central circular tube between the thorns;

[0005] In a preferred embodiment, the combination of the central circular tube and the thorns can be formed as an integral part, or can be processed separately and then welded or bonded together; further, the central circular tube and the outer thorns are formed as an integral part by cold drawing or wire cutting;

[0006] In another preferred embodiment, the cross-sectional shape of the external vitex is a triangle, a wedge, or a trapezoid;

[0007] In another preferred embodiment, the radial through holes are located on the central circular tube between the thorns, and the shape of the through holes can be circular, square or long holes or a combination of several of them; further, the total area of ​​the radial through holes should be larger than the inner diameter area of ​​the central tube;

[0008] In another preferred embodiment, the cross-sectional shape and angle, R angle and height of the vitex also need to be calculated to ensure that after the welding of the screen tube outside the support body is completed, a flow channel cavity is formed between the screen tube and the central tube, and the total area of ​​this cavity should be greater than the area of ​​the inner diameter of the central circular tube;

[0009] The beneficial effects of the utility model are as follows: the utility model is a novel high-strength wire-wound screen pipe internal support structure, which improves the strength of the wire-wound screen pipe internal support through the integral molding or split welding of the central circular tube and the bramble, avoids the deformation of the wire-wound screen pipe, ensures the accuracy of the wire-wound screen pipe, and has good practical value.

[0010] Description of the drawings: Figure 1 This is a schematic diagram of the inner support structure of a new type of high-strength wire-wound screen pipe of the utility model;

[0011] Figure 2 This is a schematic diagram of the combination of a central round tube and vitex in the inner support structure of a new type of high-strength wire-wound screen pipe of the utility model;

[0012] Figure 3 This is a schematic diagram of the radial through hole structure of the inner support structure of a new type of high-strength wire-wound screen tube of the utility model;

[0013] Figure 4 This is a schematic diagram of a wire-wound screen tube structure composed of an inner support structure of a new type of high-strength wire-wound screen tube of the utility model;

[0014] In the figure, 1. central circular tube, 2. thorns, 3. radial through holes, 2-1. thorn triangular structure, 2-2. rib trapezoidal structure, 3-1. circular through holes, 3-2. square through holes, 3-3. long hole through holes, 4-1. flow area between the central circular tube and the screen tube, 4-2. cross-sectional area of ​​the central circular tube. DETAILED DESCRIPTION

[0015] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0016] The utility model discloses a novel high-strength wire-wound screen pipe inner support structure, such as Figure 1 As shown, it includes a central circular tube, vitex uniformly distributed axially and circumferentially on the outside of the central circular tube, and radial through holes arranged on the central circular tube between the vitex;

[0017] like Figure 2 As shown, the combination of the central circular tube and the thorns can be formed as one piece, or can be welded or bonded together after being processed separately; further, the central circular tube and the external thorns are formed as one piece by cold drawing or wire cutting; the cross-sectional shape of the external thorns is a triangle, a wedge or a trapezoid, and further, the cross-sectional shape, angle, R angle and height of the thorns also need to be determined by calculation;

[0018] like Figure 3 As shown, the schematic diagram of the structure of the radial through hole, the radial through hole is located on the central circular tube between the thorns, and the shape of the through hole can be a combination of round, square or long holes; further, the total area of ​​the radial through hole should be larger than the inner diameter area of ​​the central tube;

[0019] like Figure 4 As shown, the high-strength wire-wound screen tube and the internal support structure, after the screen tube outside the support body is welded, a flow channel cavity is formed between the screen tube and the center tube, and the total area of ​​this cavity should be larger than the inner hole area of ​​the center circular tube;

[0020] The utility model improves the strength of the internal support of the wire-wound screen tube by combining the central circular tube with the bramble, avoids the deformation of the wire-wound screen tube, ensures the accuracy of the wire-wound screen tube, and has good practical value. The above description is only an explanation of the preferred implementation mode of the utility model in combination with the drawings, but these descriptions cannot be understood as limiting the scope of the utility model. The scope of protection of the utility model is defined by the attached claims, and any modifications, replacements, improvements, etc. made on the basis of the claims of the utility model are included in the scope of protection of the utility model.

Claims

1. A new type of high-strength wire-wound screen pipe inner support structure, characterized in that: The invention comprises a central circular tube (1), thorns (2) uniformly distributed axially and circumferentially outside the central circular tube (1), the central circular tube (1) and the thorns (2) being formed by integral processing or separate welding, and radial through holes (3) being arranged on the central circular tube (1) between the thorns (2).

2. A novel high-strength wire-wrapped screen pipe inner support structure according to claim 1, characterized in that: The central circular tube (1) and the thorns (2) are combined in an integrated processing and forming manner or in a separate processing manner and then welded / bonded together.

3. The novel high-strength wire-wrapped screen pipe inner support structure according to claim 1 is characterized in that: The cross-sectional shape of the external bramble (2) is a triangle, a wedge (2-1) or a trapezoid (2-2).

4. The novel high-strength wire-wrapped screen pipe inner support structure according to claim 1 is characterized in that: The radial through hole (3) is located on the central circular tube (1) between the thorns (2), and the shape of the through hole can be circular (3-1), square (3-2) or long hole (3-3) or a combination of several of them.

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