Wear-resistant lining double-alloy elbow

Abstract

The utility model relates to the technical field of double-alloy elbows, in particular to a wear-resistant lining double-alloy elbow which comprises a pipeline main body, an inner layer is arranged inside the pipeline main body, an outer layer is arranged outside the pipeline main body, a wear-resistant lining plate assembly is arranged outside the pipeline main body, flange connecting discs are arranged outside the two ends of the pipeline main body, and the two ends of the pipeline main body are each provided with a wear-resistant lining plate assembly. Wear-resistant rings are arranged in the ends of the two ends of the pipeline main body, each wear-resistant lining plate assembly comprises a supporting block, a wear-resistant block is arranged in each supporting block, and a wear-resistant layer is arranged on one side face of each wear-resistant block, so that the pipeline main body, the inner layer, the outer layer, the wear-resistant lining plate assemblies, the supporting blocks, the wear-resistant blocks, the wear-resistant layers, the flange connecting discs and the wear-resistant rings are arranged in the pipeline main body. The problems that due to the fact that a traditional alloy head is often insufficient in abrasion resistance, the service life of an elbow is short, production cost is increased due to frequent replacement, and production continuity is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to double alloy elbow technical field, concretely is a kind of wear-resistant lining double alloy elbow. BACKGROUND

[0002] In industrial production process, pipeline system as the important carrier of fluid transmission, its performance and stability are directly related to the efficiency and safety of entire production line. Especially in coal washery, mine, metallurgy, chemical industry and other industries, fluid medium often carries large particle material with high flow rate, and the scouring and abrasion of pipe elbow are extremely serious.

[0003] Traditional alloy head wear resistance is often insufficient, leading to short service life of elbow, frequent replacement not only increases production cost, but also affects the continuity of production.

[0004] Therefore, it is particularly important to design a wear-resistant lining double alloy elbow to change the above technical defects and improve overall practicability. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of wear-resistant lining double alloy elbow to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of wear-resistant lining double alloy elbow, including pipeline main body, the inside of the pipeline main body is equipped with inner layer, the outside of the pipeline main body is equipped with outer layer, the outside of the pipeline main body is equipped with wear-resistant lining plate assembly, the outside of the both ends of the pipeline main body is equipped with flange connecting disc, the inside of the both ends of the pipeline main body is equipped with wear-resistant ring, the wear-resistant lining plate assembly includes support block, the inside of the support block is equipped with wear-resistant block, the side surface of the wear-resistant block is equipped with wear-resistant layer.As the preferred scheme of the utility model, the inner layer is composed of high chromium alloy high hardness alloy material, the outer layer is composed of carbon steel, the pipeline main body is composed of high chromium alloy high hardness alloy material and carbon steel.

[0008] As the preferred scheme of the utility model, the wear-resistant ring is arc-shaped, and the wear-resistant ring and the pipeline main body are welded.

[0009] As the preferred scheme of the utility model, the support block and the pipeline main body are welded.

[0010] As the preferred scheme of the utility model, groove is provided on the pipeline main body, the edge of the groove is provided with stepped recess, and the wear-resistant block and the groove are matched, and the wear-resistant block and the inner layer are smoothly transitioned.

[0011] As the preferred scheme of the utility model, the wear-resistant layer and the wear-resistant ring are composed of high-hardness tungsten carbide ceramic.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、The utility model discloses a kind of wear-resistant lining double alloy elbow for being set, utilize the structure of pipeline main body, inner layer, outer layer, wear-resistant lining plate assembly, support block, wear-resistant block, wear-resistant layer, flange connecting disc, wear-resistant ring, pipeline is connected by flange disc, when high flow rate large particle medium passes, preliminary wear resistance by wear-resistant ring and inner layer high chromium alloy, prolong life, wear-resistant block main scouring at elbow, outer layer carbon steel provides strength and anticorrosion, ensure stable operation, wear-resistant block of wear-resistant lining plate is accurately positioned, tungsten carbide ceramic wear-resistant layer provides additional protection, wear-resistant block and inner layer smooth transition, reduce resistance, guarantee smooth operation, solve the problem that the wear resistance of traditional alloy head is often insufficient, leading to elbow service life is short, frequent replacement not only increase production cost, also affect the continuity of production. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is overall structural diagram of the utility model;

[0015] Fig. 2 It is schematic diagram of the utility model;

[0016] Fig. 3 It is structural schematic diagram of the utility model.

[0017] In the drawing: 1, pipeline main body;2, inner layer;3, outer layer;4, wear-resistant lining plate assembly;401, support block;402, wear-resistant block;403, wear-resistant layer;5, flange connecting disc;6, wear-resistant ring. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] In order to facilitate understanding of the utility model, the utility model will be described more fully with reference to relevant drawings. Several embodiments of the utility model are given. However, the utility model can be realized in many different forms, and is not limited to the embodiments described in this paper. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] It should be understood that when an element as a "fixed" to another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0022] Embodiment, please refer to Figs. 1-3 The application provides a technical scheme:

[0023] The wear-resistant lining double-alloy elbow comprises a pipeline main body 1, an inner layer 2 arranged in the pipeline main body 1, an outer layer 3 arranged on the outer side of the pipeline main body 1, a wear-resistant lining plate assembly 4 arranged on the outer side of the pipeline main body 1, and a flange connecting disc 5 arranged on the outer side of the two ends of the pipeline main body 1, and a wear-resistant ring 6 arranged in the inner side of the two ends of the pipeline main body 1, wherein the wear-resistant lining plate assembly 4 comprises a supporting block 401, the supporting block 401 is internally provided with a wear-resistant block 402, and the wear-resistant block 402 is provided with a wear-resistant layer 403 on one side face. The flange connecting disc 5 is used for connecting the external pipeline, when fluid medium with high flow rate carries large particles through the elbow, the wear-resistant ring 6 and the high-chromium alloy high-hardness alloy material of the inner layer 2 preliminarily bear the erosion and wear, the high-hardness characteristic effectively resists the erosion of the medium, prolongs the service life of the elbow, meanwhile, the wear-resistant block 402 arranged at the elbow is used for bearing the main erosion and wear, the outer layer 3 made of carbon steel provides necessary structural support and corrosion resistance, and the elbow can stably operate in various harsh environments. The wear-resistant block 402 in the wear-resistant lining plate assembly 4 is preliminarily positioned on the pipeline main body 1 through the precisely matched slotting, the high-hardness tungsten carbide ceramic material of the wear-resistant layer 403 provides an additional protective layer for the elbow, effectively resisting the wear and corrosion of the medium, in addition, the smooth transition design between the wear-resistant block 402 and the inner layer 2 reduces the resistance when the fluid flows, and the smooth operation of the system is ensured.

[0024] The inner layer 2 is composed of high-chromium alloy high-hardness alloy material, the outer layer 3 is composed of carbon steel, the pipeline main body 1 is composed of high-chromium alloy high-hardness alloy material and carbon steel, the inner layer is composed of high-hardness alloy material, can effectively resist fluid scouring and wear, prolongs the service life of the elbow, the outer layer is composed of carbon steel, provides sufficient structural strength and corrosion resistance, meanwhile reduces the cost, the composite structure combines the advantages of the two materials, realizes the balance of wear resistance and economy, the wear-resistant ring 6 is arc-shaped, and the wear-resistant ring 6 is welded between the pipeline main body 1, the wear-resistant ring can effectively reduce the scouring and wear of the fluid to the end of the elbow, prolongs the service life of the elbow, the support block 401 is welded between the pipeline main body 1, the pipeline main body 1 is provided with a slot, the edge of the slot is provided with a stepped recess, and the wear-resistant block 402 is matched with the slot, the wear-resistant block 402 and the inner layer 2 are smoothly transitioned, the structure of the wear-resistant lining plate assembly is reasonable, the wear-resistant block is matched with the slot, and the accuracy and stability of installation are ensured. The wear-resistant layer provides additional wear protection, and the smooth transition between the wear-resistant block and the inner layer reduces the resistance when the fluid flows, the wear-resistant layer 403 and the wear-resistant ring 6 are composed of high-hardness tungsten carbide ceramic, the high-hardness tungsten carbide ceramic has extremely high wear resistance and corrosion resistance, and can effectively resist wear and corrosion under harsh working conditions.

[0025] The utility model discloses a work flow: when using the wear-resistant lining double-alloy elbow, first, utilize flange connecting disc 5 to connect external pipeline, when fluid medium carries large particle material through the elbow at high flow rate, the high-chromium alloy high-hardness alloy material of wear-resistant ring 6 and inner layer 2 primarily bear scouring and wear, its high-hardness characteristic effectively resists the erosion of medium, prolongs the service life of the elbow, simultaneously, the elbow is provided with wear-resistant block 402 for bearing main scouring and wear, the outer layer 3 carbon steel provides necessary structural support and corrosion resistance, ensures that the elbow can stably run under various harsh environments, the wear-resistant block 402 in wear-resistant lining plate assembly 4 is primarily positioned on the pipeline main body 1 through the accurately matched slot, the high-hardness tungsten carbide ceramic material of wear-resistant layer 403 provides the elbow with an additional protective layer, effectively resists the wear and corrosion of medium, in addition, the smooth transition design between wear-resistant block 402 and inner layer 2 reduces the resistance when the fluid flows, guarantees the smooth operation of the system.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant lining double-alloy elbow comprising a pipe body (1), characterized in that: The inside of the pipeline body (1) is provided with an inner layer (2), the outside of the pipeline body (1) is provided with an outer layer (3), the outside of the pipeline body (1) is provided with a wear-resistant lining plate assembly (4), the outside of the two end heads of the pipeline body (1) is provided with a flange connecting disc (5), the inside of the two end heads of the pipeline body (1) is provided with a wear-resistant ring (6), the wear-resistant lining plate assembly (4) comprises a supporting block (401), the inside of the supporting block (401) is provided with a wear-resistant block (402), one side of the wear-resistant block (402) is provided with a wear-resistant layer (403).

2. A wear resistant liner dual alloy elbow as defined in claim 1, wherein: The inner layer (2) is composed of high-chromium alloy high-hardness alloy material, the outer layer (3) is composed of carbon steel, and the pipeline body (1) is composed of high-chromium alloy high-hardness alloy material and carbon steel.

3. A wear resistant liner dual alloy elbow as defined in claim 1 wherein: The wear-resistant ring (6) is arc-shaped, and the wear-resistant ring (6) is welded with the pipeline body (1).

4. A wear resistant inner liner dual alloy elbow as defined in claim 1, wherein: The supporting block (401) is welded with the pipeline body (1).

5. A wear resistant inner liner double alloy elbow as defined in claim 1 wherein: The pipeline body (1) is provided with a slot, the edge of the slot is provided with a stepped recess, the wear-resistant block (402) is matched with the slot, and the wear-resistant block (402) is smoothly connected with the inner layer (2).

6. A wear resistant inner liner dual alloy elbow as defined in claim 1 wherein: The wear-resistant layer (403) and the wear-resistant ring (6) are composed of high-hardness tungsten carbide ceramic.

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