Flexible sleeve for buffering pipe burst injection of connector of slurry conveying pipeline

Abstract

The utility model discloses a flexible sleeve for buffering pipe burst injection of a connector of a slurry conveying pipeline, and relates to the technical field of flexible sleeves. The flexible sleeve comprises a sleeve body and an annular spring band. The sleeve body comprises a corrugated pipe, a buffer layer and a net sleeve, the outer wall of the corrugated pipe is fixedly sleeved with the buffer layer, the outer wall of the buffer layer is fixedly sleeved with the net sleeve, the two ends of the net sleeve extend out, the length of the two ends of the net sleeve is larger than that of the corrugated pipe and the buffer layer, the extending part gradually shrinks in the radial direction to be in a circular truncated cone shape, and the end is wrapped with an annular spring band. The maximum diameter of the annular spring band is the same as the diameter of the sleeve body, and the minimum diameter is smaller than the outer diameter of the slurry conveying pipeline. According to the utility model, when pipe explosion occurs at the joint of the slurry conveying pipeline, the sprayed slurry can be effectively absorbed and buffered, the safety of operating personnel is guaranteed, and the device has a simple structure, is convenient to use and can be repeatedly utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible casings, in particular to a flexible casing for pipe bursting and injection at an interface of a buffer slurry delivery pipeline. Background Art

[0002] When transporting slurry, the slurry pipeline is subject to significant pressure. The interface between two adjacent pipelines is the weakest point in the entire transportation line, and pipe bursts often occur here. The slurry that bursts out poses a significant threat to worker safety and has a significant impact on normal production. To address this issue, existing technologies typically focus on unblocking the pipeline to prevent bursts caused by pipe blockage. However, relatively little research has been conducted on protective measures for when a pipe burst occurs. Therefore, ensuring effective buffering of the injected slurry in the event of a pipe burst is a top priority in handling pipe bursts. Utility Model Content

[0003] In response to the above problems, the utility model discloses a flexible casing for buffering the slurry conveying pipeline interface burst injection, which is not only simple in structure, low in cost and reusable, but also can effectively absorb and buffer the slurry injected after the pipe burst, thereby providing protection for the safety of underground workers.

[0004] According to the purpose of the present invention, a flexible sleeve for buffering the burst injection of the interface of a slurry conveying pipeline is proposed. The flexible sleeve is in the shape of a sleeve as a whole, including a sleeve body and an annular spring hoop. The annular spring hoop is two arranged at both ends of the sleeve body; the sleeve body includes a corrugated tube, a buffer layer and a mesh sleeve arranged from the inside to the outside, the buffer layer is fixedly sleeved on the outer wall of the corrugated tube, and its length is the same as the length of the corrugated tube in the natural state, the mesh sleeve is fixedly sleeved on the outer wall of the buffer layer, and the two ends of the mesh sleeve extend out, and the length is greater than the corrugated tube and the buffer layer. The extended part gradually shrinks radially to form a truncated cone shape, and the end is wrapped with an annular spring hoop; the maximum diameter of the annular spring hoop is the same as the diameter of the sleeve body, and the minimum diameter is smaller than the outer diameter of the slurry conveying pipeline.

[0005] Preferably, the mesh sleeve is retracted 30° along both ends of the corrugated tube to wrap around the annular spring hoop.

[0006] Preferably, the bellows is a stainless steel bellows.

[0007] Preferably, the buffer layer is made of anti-static EVA material.

[0008] Preferably, the mesh sleeve is woven from multiple groups of anti-static nylon threads.

[0009] Preferably, the gap between the inner wall of the sleeve body and the flange on the slurry delivery pipeline is 100 to 150 mm.

[0010] Compared with the prior art, the advantages of the flexible casing for bursting and jetting at the interface of a buffer slurry delivery pipeline disclosed in the present invention are:

[0011] (1) The utility model can not only effectively absorb and buffer the sprayed slurry when a pipe burst occurs at the interface of the slurry conveying pipeline, thereby ensuring the safety of the operators, but also has a simple structure, is easy to use, and can be reused.

[0012] (2) The annular spring hoop in the present invention can freely change its diameter and can be adapted to slurry conveying pipes and flanges of different diameters.

[0013] (3) The mesh sleeve in the utility model is woven with a material having good toughness and strong wear resistance, and has a long service life.

[0014] (4) The main body of the sleeve in the present invention is made of anti-static material, which has a wide range of applications; it does not absorb dust in the air and has strong anti-aging performance.

[0015] (5) The utility model is not only applicable to the field of mine filling, but also to construction fields such as highway and bridge construction that require slurry conveying pipelines, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is a schematic diagram of the installation of the present utility model.

[0019] Figure 3 It is a cross-sectional view of the sleeve main body of the utility model.

[0020] In the figure: 1- casing body; 2- bellows; 3- buffer layer; 4- mesh sleeve; 5- annular spring hoop; 6- slurry conveying pipe; 7- flange. DETAILED DESCRIPTION

[0021] The following is a brief description of the specific embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described 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 making any creative efforts are within the scope of protection of the present invention.

[0022] Figure 1-Figure 3 A preferred embodiment of the present utility model is shown and analyzed in detail.

[0023] like Figure 1-3 The flexible sleeve for burst injection of a buffer slurry delivery pipeline interface shown is sleeve-shaped as a whole and comprises a sleeve body 1 and an annular spring hoop 5 . The annular spring hoop 5 is provided at two ends of the sleeve body 1 .

[0024] The casing body 1 comprises a bellows 2, a buffer layer 3, and a mesh sleeve 4, arranged from inside to outside. The bellows 2 is axially retractable, effectively cushioning the impact of the sprayed slurry. The buffer layer 3 is fixedly mounted on the outer wall of the bellows 2 and has the same length as the bellows 2 in its natural state. The mesh sleeve 4 is fixedly mounted on the outer wall of the buffer layer 3. The mesh sleeve 4 extends at both ends, exceeding the bellows 2 and the buffer layer 3. The extended portion is retracted 30° inward along the ends of the bellows 2 and wrapped around the ends with an annular spring hoop 5. The annular spring hoop 5 is a ring-shaped spring that serves as a fixing mechanism. The mesh sleeve 4, wrapped around the outer surface of the mesh sleeve, has a corrugated surface to allow for diameter changes. The bellows 2 is made of stainless steel. The buffer layer 3 is made of anti-static EVA material, which provides excellent shock absorption and improves kinetic energy, enhancing the casing's cushioning capacity. It also does not absorb airborne dust and has strong aging resistance. The mesh sleeve 4 is woven from multiple strands of anti-static nylon yarn, enhancing the cushioning effect while increasing the casing's flexibility and long service life. The material of the casing body is not limited to the types mentioned above; materials with similar characteristics and meeting the standards can also be used instead. The annular spring hoop 5 can be freely adjusted in diameter. The maximum diameter achieved is the same as the diameter of the casing body 1, and the minimum diameter is smaller than the outer diameter of the slurry delivery pipe 6. It can be configured according to the requirements of use and adapted to different pipelines. This flexible casing does not require additional reinforcement kits; tightening the annular spring hoop 5 completes the fixing of the flexible casing. After installation, the gap between the inner wall of the casing body 1 and the flange 7 on the slurry delivery pipe 6 is 130mm.

[0025] During the construction process, the flexible sleeve of the utility model is first stretched and the annular spring hoop 5 is integrally mounted on a section of the slurry delivery pipe 6. Then, after the two sections of the slurry delivery pipe 6 are connected via the flange 7, the annular spring hoop 5 on the side close to the connected slurry delivery pipe 6 is stretched and mounted on the other section of the slurry delivery pipe 6 via the flange 7. No additional reinforcement kit is required. The flexible sleeve can be fixed by tightening the spring. During use, the flexible sleeve of the utility model has a buffer gap between the inner wall of the sleeve and the pipe interface to enhance the buffering effect and leave a certain amount of space for the sprayed slurry.

[0026] The above description of the disclosed embodiments will enable those skilled in the art to implement and use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to be applied in the broadest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A flexible casing for buffering slurry delivery pipeline interface burst injection, characterized in that: The flexible sleeve is in the shape of a sleeve as a whole, comprising a sleeve body (1) and an annular spring hoop (5), wherein the annular spring hoop (5) is arranged at both ends of the sleeve body (1); the sleeve body (1) comprises a bellows (2), a buffer layer (3) and a mesh sleeve (4) arranged from the inside to the outside, the buffer layer (3) is fixedly sleeved on the outer wall of the bellows (2), and its length is the same as the length of the bellows (2) in its natural state; the mesh sleeve (4) is fixedly sleeved on the outer wall of the buffer layer (3), and the mesh sleeve (4) extends at both ends, and its length is greater than that of the bellows (2) and the buffer layer (3); the extended part gradually shrinks radially to form a truncated cone shape, and wraps the annular spring hoop (5) at the end; the maximum diameter of the annular spring hoop (5) is the same as the diameter of the sleeve body (1), and the minimum diameter is smaller than the outer diameter of the slurry conveying pipe (6).

2. The flexible casing for bursting and jetting of a buffer slurry delivery pipeline interface according to claim 1 is characterized in that: The mesh sleeve (4) is retracted 30° along the two ends of the buffer layer (3) to wrap around the annular spring hoop (5).

3. The flexible casing for bursting and jetting of a buffer slurry delivery pipeline interface according to claim 1 is characterized in that: The bellows (2) is a stainless steel bellows.

4. The flexible casing for bursting and jetting of a buffer slurry delivery pipeline interface according to claim 1 is characterized in that: The buffer layer (3) is made of antistatic EVA material.

5. The flexible casing for bursting and jetting of a buffer slurry delivery pipeline interface according to claim 1 is characterized in that: The mesh sleeve (4) is woven from multiple groups of antistatic nylon threads.

6. The flexible casing for bursting and jetting of a buffer slurry delivery pipeline interface according to claim 1 is characterized in that: The gap between the inner wall of the sleeve body (1) and the flange (7) on the slurry delivery pipe (6) is 100 to 150 mm.

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