Compression-resistant screen pipe based on wire rings

Abstract

The utility model discloses a compression resistant sieve tube based on wire ring, including: wire ring, rack, cage body and flange, the wire ring is sleeved on the cage body at interval, every two adjacent wire rings form a sieve seam, the flange is arranged at the both ends of cage body, the cage body includes a plurality of ribs that are distributed in annular array, and the rib is arranged in the cage body. The inner side faces of the flanges are provided with first positioning grooves corresponding to the ends of the ribs respectively, the racks are arranged on the outer side of the wire ring in an annular array mode, the inner side faces of the flanges are provided with second positioning grooves corresponding to the ends of the racks respectively, and the racks are provided with limiting teeth extending into the screen seams at intervals. By means of the mode, according to the compression-resistant screen pipe based on the wire rings, the limiting teeth are used for limiting every two adjacent wire rings, the problem that the screen seams become larger when subjected to fluid impact pressure is solved, and the structural stability of the screen seams is improved.

Description

Technical Field

[0001] The utility model relates to the field of screen pipes, in particular to a pressure-resistant screen pipe based on a wire ring. Background Art

[0002] The wire-wound screen tube forms a screen slot through the wound steel wire, and uses the screen slot to filter or screen the solid particles in the fluid. Therefore, the size and stability of the screen slot determine the screening accuracy and reliability of the wire-wound screen tube.

[0003] In the prior art, the utility model with application number 202223229801.4 discloses a wire-wound screen pipe sieve seam detection device, which can detect the sieve seam of the wire-wound screen pipe. As is known to all, there are many sieve seams on the wire-wound screen pipe, and the steel wire is usually welded and fixed by ribs. The welding point is relatively small and the stability is poor. During use, if the sieve seam is subjected to a relatively large impact pressure of the fluid, the steel wire and the ribs are easily de-welded, resulting in expansion of the sieve seam, which reduces the screening accuracy and needs to be improved. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a pressure-resistant screen pipe based on a wire ring, thereby improving the structural stability and the pressure-resistant effect.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a pressure-resistant screen pipe based on a wire ring, including: a wire ring, a rack, a cage body and a flange, the wire ring is sleeved on the cage body at intervals, and a screen gap is formed between two adjacent wire rings, the flange is arranged at both ends of the cage body, the cage body includes a plurality of ribs distributed in an annular array, the inner side surface of the flange is respectively provided with a first positioning groove corresponding to the end of the rib, the rack annular array is arranged on the outer side of the wire ring, the inner side surface of the flange is respectively provided with a second positioning groove corresponding to the end of the rack, and the rack is provided with limiting teeth extending into the screen gap at intervals.

[0006] In a preferred embodiment of the present invention, the wire loop is fixed to the rib by welding.

[0007] In a preferred embodiment of the present invention, a countersunk hole communicating with the second positioning groove is provided on the front side of the flange, and a screw connected with the end of the rack is provided in the countersunk hole.

[0008] In a preferred embodiment of the present invention, a guide sleeve extending into the cage body is provided on the inner side of the flange.

[0009] In a preferred embodiment of the present invention, the ribs are in contact with the outer circle of the guide sleeve.

[0010] In a preferred embodiment of the present invention, the cross section of the rib is a triangular structure.

[0011] In a preferred embodiment of the present invention, the wire ring is a stainless steel wire ring with a circular cross-section.

[0012] The beneficial effects of the utility model are as follows: the utility model points out a pressure-resistant screen tube based on a wire loop, which uses a cage body to support and weld the wire loop internally, uses a rack to press the wire loop externally, and uses limiting teeth to limit the position of two adjacent wire loops, thereby avoiding the problem of the screen gap becoming larger when subjected to fluid impact pressure, and improving the stability of the screen gap structure and the pressure resistance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0014] Figure 1 It is a structural schematic diagram of a preferred embodiment of a pressure-resistant screen tube based on a wire ring of the utility model;

[0015] Figure 2 yes Figure 1 AA section view. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1~Figure 2 , the utility model embodiment includes:

[0018] like Figure 1 The wire loop-based pressure-resistant screen tube shown comprises: wire loops 2, racks 4, cages 1 and flanges 3. The wire loops 2 are sleeved on the cages 1 at intervals, and screen gaps 21 are formed between two adjacent wire loops 2. Solid particles in the fluid are filtered or screened through the screen gaps 21.

[0019] The flanges 3 are arranged at both ends of the cage body 1, and the cage body 1 includes a plurality of ribs 11 distributed in a circular array. The inner side surfaces of the flanges 3 are respectively provided with first positioning grooves 31 corresponding to the ends of the ribs 11, which facilitates assembly and improves the stability of the ends of the ribs 11. In this embodiment, a guide sleeve 32 extending into the cage body 1 is provided on the inner side of the flange 3 to facilitate flow diversion.

[0020] like Figure 2 As shown, the rib 11 is in contact with the outer circle of the guide sleeve 32 , the cross section of the rib 11 is a triangular structure, one surface of the rib 11 is in contact with the outer circle of the guide sleeve 32 , the structure is stable, and the torsion problem of the rib 11 can be avoided.

[0021] In this embodiment, the wire ring 2 is fixed to the rib 11 by welding, and the welding can be performed by resistance welding, which is convenient for construction. The two adjacent wire rings 2 are fixed by welding to form the screen slots 21 with the same spacing. The wire ring 2 is a stainless steel wire ring with a circular cross section, which has good corrosion resistance, and the arc structure on the surface is conducive to the flow of fluid and reduces resistance. The internal support of the wire ring 2 is performed by the rib 11 of the cage body 1, which is conducive to improving the structural strength of the wire ring 2.

[0022] The racks 4 are arranged in an annular array outside the wire ring 2, and the racks 4 are used to press the outside of the wire ring 2, such as Figure 2 As shown, the inner side of the flange 3 is respectively provided with second positioning grooves 34 corresponding to the ends of the rack 4 to position the ends of the rack 4. In this embodiment, the front of the flange 3 is provided with a countersunk hole 33 connected to the second positioning groove 34, and a screw 5 connected to the ends of the rack 4 is provided in the countersunk hole 33 to achieve the connection between the rack 4 and the flanges 3 at both ends, completing the overall assembly, with a stable structure and convenient disassembly, so that the flange 3 can be reused for a second time, thereby improving the versatility of the flange 3.

[0023] like Figure 1 As shown, the rack 4 is provided with limiting teeth 41 extending into the screen slot 21 at intervals, and the limiting teeth 41 are used to limit two adjacent wire rings 2 to avoid the screen slot 21 from becoming larger when subjected to fluid impact pressure, thereby improving the stability of the screen slot structure and achieving good pressure resistance.

[0024] In summary, the utility model discloses a pressure-resistant screen tube based on a wire ring, which can filter fluids, has good effect of resisting fluid impact, and has high stability of the screen seams.

[0025] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pressure-resistant screen pipe based on a wire ring, characterized in that: include: A wire ring, a rack, a cage body and a flange, wherein the wire rings are sleeved on the cage body at intervals, a sieve gap is formed between two adjacent wire rings, the flange is arranged at both ends of the cage body, the cage body includes a plurality of ribs distributed in an annular array, the inner side surface of the flange is respectively provided with a first positioning groove corresponding to the end of the rib, the rack annular array is arranged on the outer side of the wire ring, the inner side surface of the flange is respectively provided with a second positioning groove corresponding to the end of the rack, and the rack is provided with limiting teeth extending into the sieve gap at intervals.

2. The wire ring-based pressure-resistant screen according to claim 1, characterized in that: The wire loop is fixed to the rib by welding.

3. The wire ring-based pressure-resistant screen according to claim 1, characterized in that: The front side of the flange is provided with a countersunk hole connected with the second positioning groove, and the countersunk hole is provided with a screw connected with the end of the rack.

4. The wire ring-based pressure-resistant screen according to claim 1, characterized in that: A guide sleeve extending into the cage body is arranged on the inner side of the flange.

5. The wire ring-based pressure-resistant screen according to claim 1, characterized in that: The ribs are in contact with the outer circle of the guide sleeve.

6. The wire ring-based pressure screen according to claim 1, characterized in that: The cross section of the rib is a triangular structure.

7. The wire ring-based pressure-resistant screen according to claim 1, characterized in that: The wire ring is a stainless steel wire ring with a circular cross section.

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