Pipeline elbow with wear resistance and wear leakage alarm function

Abstract

The utility model relates to a pipeline elbow with wear resistance and a wear leakage alarm function, which comprises a metal pipeline elbow and is characterized in that a polymer composite wear-resistant layer is coated on the inner wall of the metal pipeline elbow, and an arc-shaped middle buckle plate is arranged on the outer wall of the lower part of the metal pipeline elbow. Two vibration sensors are arranged on the outer side of the arc-shaped hollow buckle plate in a spaced mode through bolts and electrically connected with the PLC. The utility model has the advantages that the elbow abrasion can be reduced, the production efficiency is improved, the spare part loss is reduced, and meanwhile, the post can timely discover the on-site ash leakage and arrange the maintenance personnel to process in time.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe connectors, and particularly relates to a wear-resistant...

[0002] Pipe elbows with wear and tear alarm function. Background Technology

[0003] The production process of iron ore pellets generates a large amount of dust. After the dust is collected, the dust is sent to the batching silo via a silo pump and ash conveying pipeline to be re-integrated into the batching process. The main component of this dust is iron concentrate, which has relatively hard particles. As it is driven forward by compressed air, it causes rapid erosion of the pipeline, especially at the bends of the pipeline connections, resulting in greater wear and more frequent replacements. It also causes secondary pollution and deteriorates the on-site environment.

[0004] To extend the service life of elbows, currently used wear-resistant pipe elbows mainly achieve this by thickening the inner wall, which increases the weight of a single elbow and makes installation inconvenient. Furthermore, this type of elbow has a limited service life of approximately two months, and it does not technically solve the problem of elbow wear, often requiring welding repairs, resulting in unsatisfactory performance. Additionally, leaks in the elbows often go undetected in time, causing secondary dust pollution and compromising the cleanliness of the work site. Utility Model Content

[0005] The purpose of this invention is to provide a pipe elbow with wear resistance and a leak alarm function. This pipe elbow can reduce the degree of elbow wear, extend its service life, save spare parts, and eliminate the source of pollution.

[0006] This utility model discloses a pipe elbow with wear resistance and leakage alarm functions, comprising a metal pipe elbow. Its features include: a high-polymer composite wear-resistant layer coated on the inner wall of the metal pipe elbow; an arc-shaped central buckle plate on the lower outer wall of the metal pipe elbow; the arc-shaped central buckle plate consisting of two vertical support plates, an arc-shaped vibration sensing plate, and two angle steels; the lower ends of the two vertical support plates are welded to the outer wall of the metal pipe elbow, and the upper ends overlap with the arc-shaped vibration sensing plate; the angle steels are positioned inside the arc-shaped vibration sensing plate, one end welded to the inner side of the two vertical support plates, and the other end fixedly connected to the arc-shaped vibration sensing plate by bolts; two vibration sensors are bolted at intervals on the outer side of the vibration sensing plate, and the two vibration sensors are electrically connected to a PLC controller.

[0007] Preferably, the polymer composite wear-resistant layer is made by first spraying a 2mm thick layer of neodymium iron boron material, and then spraying a 3mm thick layer of polymer ceramic wear-resistant material on the surface of the neodymium iron boron.

[0008] The advantages of this utility model are:

[0009] Compared with the prior art, this utility model can reduce elbow wear, improve production efficiency, reduce spare parts consumption, and at the same time, the on-site personnel can promptly detect dust leakage and arrange maintenance personnel to handle it in a timely manner. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is an enlarged view of the curved panel. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] like Figures 1-2 As shown, this utility model discloses a pipe elbow with wear resistance and leakage alarm functions, comprising a metal pipe elbow 1. Its characteristic is that a composite wear-resistant layer 2 is coated on the inner wall of the metal pipe elbow 1. The polymer composite wear-resistant layer is formed by first spraying a 2mm thick layer of neodymium iron boron material, and then spraying a 3mm thick layer of polymer ceramic wear-resistant material onto the surface of the neodymium iron boron. When dust reaches the pipe elbow, it is adsorbed onto the inner wall of the pipe due to the strong magnetic material of neodymium iron boron in the coating, forming a dust protection layer. The impact of high-pressure dust acts on the protective layer and continuously replenishes the protective dust that has been washed away, thus protecting the elbow and greatly extending its service life.

[0014] This utility model features an arc-shaped central buckle plate 3 on the outer wall of the lower part of a metal pipe bend 1. The arc-shaped central buckle plate consists of two vertical support plates 31, an arc-shaped vibration sensing plate 32, and two angle steels 33. The lower ends of the two vertical support plates 31 are welded to the outer wall of the metal pipe bend 1, and the upper ends overlap with the arc-shaped vibration sensing plate 32. The angle steels 33 are located inside the arc-shaped vibration sensing plate, with one end welded to the inner side of the two vertical support plates 31 and the other end fixedly connected to the arc-shaped vibration sensing plate 32 by bolts 34. Two vibration sensors 5 are spaced apart on the outer side of the vibration sensing plate 32 by bolts 4, and the two vibration sensors 5 are electrically connected to a PLC controller.

[0015] When the outer wall of the elbow wears down, high-pressure dust-laden gas enters the cavity of the arc-shaped inner plate 3, causing the arc-shaped vibration sensing plate 32 to vibrate. The vibration sensor 5 transmits the vibration value to the PLC controller. When the value exceeds the set value, an alarm signal is output, triggering the audible and visual alarm in the control room, thus achieving the purpose of on-site alarm. In addition, when there is a lot of dust inside the arc-shaped inner plate 3, the bolt 34 can be unscrewed to open the arc-shaped vibration sensing plate 32 and clean the dust inside. This also facilitates the repair welding of leaks in the elbow 5. After repair welding, the protective jacket can continue to be used.

[0016] This invention can detect wear in hard-to-detect bends in metal pipes, enabling timely discovery and prediction of potential equipment malfunctions.

Claims

1. A pipe elbow with wear resistance and leakage alarm function, comprising a metal pipe bend, characterized in that: A high-polymer composite wear-resistant layer is coated on the inner wall of the metal pipe bend. An arc-shaped central buckle plate is provided on the outer wall of the lower part of the metal pipe bend. The arc-shaped central buckle plate is composed of two vertical support plates, an arc-shaped vibration sensing plate, and two angle steels. The lower ends of the two vertical support plates are welded to the outer wall of the metal pipe bend, and the upper ends overlap with the arc-shaped vibration sensing plate. The angle steels are set on the inner side of the arc-shaped vibration sensing plate, with one end welded to the inner side of the two vertical support plates and the other end fixedly connected to the arc-shaped vibration sensing plate by bolts. Two vibration sensors are provided at intervals on the outer side of the vibration sensing plate by bolts. The two vibration sensors are electrically connected to the PLC controller.

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