Protective device for preventing plasma cutting slag pollution in pipeline
By setting up the collection of protective devices in the pipeline, the problem that is difficult to clean up after cutting is solved, and the cleaning of the inner wall of the pipeline and the improvement of production efficiency.
Patent Information
- Application Number
- CN202420261535.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-02
AI Technical Summary
During the pipeline cutting process, the internal slag is difficult to clean, resulting in contamination of the inner wall of the pipeline and affecting construction safety and equipment life.
Design a protective device, including central connectors, positioning parts, gears, and traction ropes. By setting up collecting space in the pipeline, the slag generated during cutting is collected to prevent its inner wall of the adhesive pipeline.
Effectively prevent the inner wall of the slag adhesion, simplify the cleanup process, improve production efficiency, and reduce the cost and time of manual cleaning.
Smart Images
Figure CN222403891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline cutting protection, and in particular to a protection device for preventing the inside of a pipeline from being contaminated by plasma cutting slag. Background Art
[0002] During the construction of petrochemical, coal chemical, fine chemical and other projects, most of the pipelines in the main area need to be re-cut, and the materials and types of the pipelines are diverse, with medium-thick wall pipelines accounting for a large proportion, and high requirements for the cleanliness of the inside of the pipelines. If the cleanliness of the inside of the pipeline is not controlled, it will cause unqualified pipeline purge, damage to equipment, damage to valves and online instruments, affect safety, and even jam valves and cause the system to not operate normally. Most of the pollution is caused during the construction process. Therefore, after the pipeline is cut during construction, it is particularly important to clean the slag inside the pipeline, which may even damage the mother material of the pipeline. Utility Model Content
[0003] The utility model provides a protective device for preventing the inside of a pipeline from being contaminated by plasma cutting slag, which solves the problem in the related art that the internal slag is difficult to clean after the pipeline is cut.
[0004] The technical solution of the utility model is as follows:
[0005] A protective device for preventing plasma cutting slag contamination inside a pipeline, comprising:
[0006] Center connector;
[0007] There are at least two positioning members, which are arranged on the central connecting member at intervals;
[0008] There are multiple blocking members, which are arranged between two positioning members at intervals along the circumferential direction. A collecting space is enclosed between the positioning member and two adjacent blocking members, and the collecting space is used to collect slag generated during cutting.
[0009] As a further technical solution, it also includes:
[0010] fastener,
[0011] A fixing plate is arranged on the positioning member or the central connecting member, and there are a plurality of fixing plates. The blocking member is arranged on the fixing plate through the fastener.
[0012] As a further technical solution, it also includes:
[0013] The supporting member is movably arranged on the positioning member and is used for abutting against the inner wall of the pipeline.
[0014] As a further technical solution, it also includes:
[0015] A traction rope is arranged on the central connecting piece.
[0016] As a further technical solution, it also includes:
[0017] A counting and positioning plate is arranged on the traction rope.
[0018] As a further technical solution, it also includes:
[0019] The connecting rod, the positioning member has a plurality of sliding grooves distributed at intervals, the plurality of connecting rods are respectively slidably arranged in the plurality of sliding grooves, and the plurality of supporting members are respectively arranged on the plurality of connecting rods.
[0020] As a further technical solution, it also includes:
[0021] The rotating member is rotatably arranged relative to the positioning member, and the rotating member has a plurality of arc-shaped through grooves distributed at intervals, and each of the connecting rods has a convex portion, and the plurality of convex portions are respectively located in the plurality of arc-shaped through grooves, and the rotating member pushes the connecting rod to slide after rotating.
[0022] As a further technical solution, the fixing plate, the central connecting member and the positioning member are integrally arranged.
[0023] The working principle and beneficial effects of the utility model are:
[0024] 1. The utility model solves the problem that when cutting a pipe, internal cutting slag adheres to the pipe wall, making subsequent cleaning, welding and processing difficult.
[0025] 2. It can be quickly positioned and is suitable for common pipe diameters of DN80-DN1000 in chemical projects.
[0026] 3. Reduce the labor for cleaning slag and improve production efficiency.
[0027] 4. The detachable setting improves the utilization rate of the protective device and reduces the installation cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.
[0029] Figure 1 It is a schematic diagram of the structure of the utility model;
[0030] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0031] In the figure: 1. central connecting part, 2. positioning part, 3. stopper, 4. collecting space, 5. fastener, 6. fixing plate, 7. supporting part, 8. traction rope, 9. counting positioning plate, 10. connecting rod, 11. slide groove, 12. rotating part, 13. arc-shaped through groove, 14. convex part. DETAILED DESCRIPTION
[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0033] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0035] Example 1
[0036] Reference Figure 1 , which is the first embodiment of the utility model, proposes a protective device for preventing plasma cutting slag contamination inside a pipeline, including a central connecting member 1; at least two positioning members 2, which are arranged at intervals on the central connecting member 1; there are multiple blocking members 3, which are arranged at intervals along the circumferential direction between two of the positioning members 2, and a collection space 4 is enclosed between the positioning member 2 and two adjacent blocking members 3, and the collection space 4 is used to collect slag generated during cutting.
[0037] Furthermore, it also includes a fastener 5 , a fixing plate 6 is arranged on the positioning member 2 or the central connecting member 1 , there are multiple fixing plates 6 , and the blocking member 3 is arranged on the fixing plate 6 through the fastener 5 .
[0038] Furthermore, the fixing plate 6, the central connecting member 1, and the positioning member 2 are integrally arranged.
[0039] The existing anti-slag protection process for the inside of the pipeline includes painting white lime on the inside of the pipeline and then cleaning it afterwards. The operation is inconvenient, time-consuming and labor-intensive, and it is easy to leave hidden dangers for the subsequent welding process. There is a plasma slag collection device, which is only suitable for collecting slag on the outside of the pipeline. It cannot reduce the adhesion and splashing of slag on the inside of the pipeline, and still causes pollution to the inner wall of the pipeline. There is also a "plasma cutting device for cutting stainless steel pipelines". The device is 6 meters long, too large, and has no size marking and needs to be assisted by other sizing tools. It can only prevent longitudinal slag splashing and has a small application area.
[0040] In this embodiment, in order to solve the problem in the related art that the internal slag is difficult to clean after cutting the pipe, a slag protection device is set inside the pipe (regardless of the material). During cutting, the problem of slag sticking to the inner wall of the pipe and the slag being unable to be cleaned can be eliminated. While improving the cutting efficiency, the cleaning time of the inner wall of the pipe is avoided, the feeding efficiency is improved, and the cleaning labor cost is reduced by about 30%.
[0041] The central connector 1, the positioning plate and the fixing plate 6 of the protective device can be set as an integrated unit. The positioning member 2 is disc-shaped with a diameter of 80 mm, and the minimum pipe diameter that can be cut is DN80. When in use, the baffle 3 is fastened to the fixing plate 6 with a detachable bolt for easy disassembly and assembly. The baffle 3, the positioning member 2 and the central connector 1 form a bucket-shaped collection space 4. The collection space 4 can be filled with pearl cotton to reduce the splash of cutting slag and protect the bolts. Before cutting, the device is placed at a suitable position in the pipeline according to the position of the cutting material; during cutting, the device rotates with the pipeline to receive the cutting slag in a range of 360°. The slag will fall into the collection space 4 instead of falling on the inner wall of the pipeline to prevent the inner wall from being adhered to the slag; after the cutting is completed, the traction rope 8 is pulled to take out the device and bring the cutting slag out of the pipe.
[0042] The use of this device can prevent the phenomenon of slag sticking to the pipe wall. After the device is used, the slag is taken out with the equipment, ensuring the cleanliness of the inner wall of the pipe. The device is small and flexible, with a fixed-length identification plate, and can be operated independently by one person, saving cleaning labor and improving cutting labor efficiency.
[0043] The use of the slag protection device has broadened the application scenarios of plasma automatic cutting and improved the labor efficiency of pipeline cutting and groove processing; it also ensures the internal cleanliness of the pipeline and prevents the slag from polluting the pipeline when the plasma device is cutting, ensuring the construction quality and providing good working conditions for subsequent pipeline assembly and welding; at the same time, the device is set to be adjustable, and by removing the baffle, it can cover the common pipe diameters of DN80-DN1000, reducing the manufacturing cost of the device and improving the utilization rate of the protection device; using a traction wire rope instead of a connecting rod device and adding a positioning plate also reduces the overall weight of the device, making it easier for one person to operate independently, reducing labor intensity and improving labor efficiency.
[0044] Example 2
[0045] Reference Figure 2 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:
[0046] Compared with the embodiment 1, it further comprises a support member 7 which is movably arranged on the positioning member 2 and is used for abutting against the inner wall of the pipeline.
[0047] Furthermore, it also includes a traction rope 8, which is arranged on the central connecting member 1.
[0048] Furthermore, it also includes a counting and positioning plate 9 which is arranged on the traction rope 8 .
[0049] Furthermore, it also includes a connecting rod 10, the positioning member 2 has a plurality of sliding grooves 11 distributed at intervals, the plurality of connecting rods 10 are respectively slidably arranged in the plurality of sliding grooves 11, and the plurality of supporting members 7 are respectively arranged on the plurality of connecting rods 10.
[0050] Furthermore, it also includes a rotating member 12, which is rotatably arranged relative to the positioning member 2, and the rotating member 12 has a plurality of arc-shaped through grooves 13 distributed at intervals. Each of the connecting rods 10 has a convex portion 14, and the plurality of convex portions 14 are respectively located in the plurality of arc-shaped through grooves 13. After the rotating member 12 rotates, it pushes the connecting rod 10 to slide.
[0051] In this embodiment, in order to adapt to pipes with different inner diameters, a retractable support member 7 is also provided. By rotating the rotating member 12, the arc-shaped through groove 13 pushes the protrusion 14 to slide in the slide groove 11, that is, rotating the rotating member 12 can drive the connecting rod 10 and the support member 7 to move telescopically together, which can be well adapted to pipes of different sizes.
[0052] The traction rope 8 facilitates pulling the protective device out of the pipeline, and the counting positioning plate 9 can be used to place the protective device at a corresponding distance in the pipeline according to the distance from the measured cutting position to the end of the pipeline, which can be well aligned with the cutting position and avoid errors caused by placement based on feeling.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A protective device for preventing plasma cutting slag contamination inside a pipeline, characterized in that: include, Central connecting piece (1); There are at least two positioning members (2) which are arranged at intervals on the central connecting member (1); There are a plurality of baffles (3), which are arranged at intervals along the circumferential direction between two of the positioning members (2); a collection space (4) is formed between the positioning member (2) and two adjacent baffles (3); and the collection space (4) is used to collect slag generated during cutting.
2. A protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 1, characterized in that: Also includes, Fasteners (5), A fixing plate (6) is arranged on the positioning member (2) or the central connecting member (1), there are a plurality of fixing plates (6), and the blocking member (3) is arranged on the fixing plate (6) via the fastener (5).
3. The protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 1, characterized in that: Also includes, A support member (7) is movably arranged on the positioning member (2) and is used for abutting against the inner wall of the pipeline.
4. The protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 1, characterized in that: Also includes, A traction rope (8) is arranged on the central connecting member (1).
5. A protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 4, characterized in that: Also includes, A counting and positioning plate (9) is arranged on the traction rope (8).
6. The protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 3, characterized in that: Also includes, The connecting rod (10) is provided with a plurality of sliding grooves (11) which are spaced apart from each other. The plurality of connecting rods (10) are respectively slidably arranged in the plurality of sliding grooves (11). The plurality of supporting members (7) are respectively arranged on the plurality of connecting rods (10).
7. A protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 6, characterized in that: Also includes, The rotating member (12) is rotatably arranged relative to the positioning member (2), the rotating member (12) having a plurality of arc-shaped through grooves (13) distributed at intervals, each of the connecting rods (10) having a convex portion (14), the plurality of convex portions (14) being respectively located in the plurality of arc-shaped through grooves (13), and the rotating member (12) pushes the connecting rods (10) to slide after rotating.
8. The protective device for preventing plasma cutting slag contamination inside a pipeline according to claim 2, characterized in that: The fixing plate, the central connecting member (1) and the positioning member (2) are integrally arranged.