Wear-resistant pre-heat-insulation reducing pipe

Abstract

The utility model discloses a wear-resistant pre-adiabatic reducing pipe which comprises a reducing pipe body, a three-way connecting piece is arranged at the lower end of the reducing pipe body, two ends of the three-way connecting piece are connected with flange plates in a sealing mode through bent pipe fittings, and the reducing pipe body comprises an inner pipe body, a wear-resistant protective layer and a wear-resistant coating structure. The wear-resistant coating structure is arranged on the outer surface of the wear-resistant protective layer in a coating mode, and the wear-resistant protective layer is arranged on the outer surface of the inner pipe body in a wrapping mode. By the adoption of the convenient assembly structural design, all pipelines of the reducing pipe can be rapidly installed and aligned, the reducing pipe has the advantages of being flexible to install and convenient to disassemble, meanwhile, the abrasion-resistant protective layer and the abrasion-resistant coating structure are arranged on the outer surface of the reducing pipe body, and the abrasion-resistant protective layer is protected through the layer-by-layer abrasion-resistant design. The wear resistance of the reducing pipe body can be improved, the inner pipe body is effectively prevented from being worn, and the safe service life of the inner pipe body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of reducing pipe technology, specifically a wear-resistant and heat-insulating reducing pipe. Background Technology

[0002] Reducers, also known as reducers, are a type of chemical pipe fitting used to connect two pipes of different diameters. They are further divided into concentric reducers and eccentric reducers, and are indispensable parts in oil transportation. With the continuous development of the petrochemical industry, pipeline transportation has also expanded, leading to increasingly stringent requirements for pipeline installation and fittings. Reducers are frequently needed in pipeline installation. However, many reducers are currently inconvenient to install, hindering the installation of reducers and pipelines, increasing manpower and economic costs, reducing construction efficiency, and impeding the efficient operation of oil transportation.

[0003] Chinese patent document CN115585321A discloses a pre-insulated reducer with good wear resistance, belonging to the field of reducer technology. It includes a reducer body comprising a ceramic layer and a steel layer disposed outside the ceramic layer, with a hollow cavity between the ceramic and steel layers. A first mounting plate is located at one end of the reducer body, and a second mounting plate is located at the other end. A flow-regulating component is installed on the inner wall of the reducer body. The flow-regulating component includes two fixed blocks and a fixed shaft disposed between the two fixed blocks. One side of each of the two fixed blocks is connected to the inner wall of the reducer body. A connecting cylinder is rotatably sleeved on the fixed shaft. An inclined flow-regulating plate is disposed outside the connecting cylinder, and one side of the flow-regulating plate is connected to the inner wall of the reducer body via a spring. This device, through the flow-regulating component, can reduce the impact force of liquid on the inner wall of the reducer body, thereby improving the service life of the reducer.

[0004] The existing technology does not provide a combined wear-resistant design to protect the outer surface of the reducer body. Long-term use can easily lead to wear of the internal core tube, causing the tube body to be damaged and unusable. Therefore, it is necessary to develop a new type of wear-resistant pre-insulated reducer. Utility Model Content

[0005] The purpose of this utility model is to provide a wear-resistant and pre-insulated reducer to solve the problem mentioned in the background art that the existing technology does not have a combined wear-resistant design to protect the outer surface of the reducer body, which easily leads to wear of the inner core tube after long-term use, resulting in the tube body being damaged and unusable.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant and heat-insulating reducer, comprising a reducer body, a tee connector provided at the lower end of the reducer body, flanges sealed to both ends of the tee connector via bends, the reducer body comprising an inner tube, a wear-resistant protective layer and a wear-resistant coating structure, the wear-resistant coating structure being coated on the outer surface of the wear-resistant protective layer, and the wear-resistant protective layer being wrapped around the outer surface of the inner tube.

[0007] Preferably, the wear-resistant protective layer comprises a metal-ceramic composite layer, a polymer composite layer, an alloy structure layer, and a glass fiber protective layer. The metal-ceramic composite layer is disposed on the outer surface of the polymer composite layer, the polymer composite layer is disposed on the outer surface of the alloy structure layer, and the alloy structure layer is disposed on the outer surface of the glass fiber protective layer.

[0008] Preferably, the wear-resistant coating structure is a graphene-modified ceramic coating structure.

[0009] Preferably, the polymer composite layer is formed by pressing together ultra-high molecular weight polyethylene and polyurethane elastomer.

[0010] Preferably, the alloy structure layer is formed by pressing a tungsten-cobalt hard alloy structure inside.

[0011] Preferably, the glass fiber protective layer is formed by pressing a glass fiber structure inside.

[0012] Preferably, the outer surface of the reducer body is provided with a mounting plate, and the surface of the mounting plate is provided with fixing slots.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model adopts a convenient assembly structure design, which allows for quick installation and alignment of the various pipes in the reducer. It has the advantages of flexible installation and convenient disassembly. At the same time, wear-resistant protective layer and wear-resistant coating structure are respectively set on the outer surface of the reducer body. Through the layer-by-layer wear-resistant design, the wear resistance of the reducer body can be improved, effectively avoiding wear on the inner pipe body and improving the safe service life of the inner pipe body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 4This is a schematic diagram of the internal structure of the reducing pipe body of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the wear-resistant protective layer of this utility model.

[0020] In the diagram: 1. Mounting plate; 2. Fixing slot; 3. Reducer body; 4. Tee connector; 5. Bend; 6. Flange; 7. Wear-resistant coating structure; 8. Wear-resistant protective layer; 9. Inner tube body; 10. Metal-ceramic composite layer; 11. Polymer composite layer; 12. Alloy structure layer; 13. Fiberglass protective layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-5 The present invention provides an embodiment of a wear-resistant and heat-insulating reducer, comprising a reducer body 3, a tee connector 4 at the lower end of the reducer body 3, and flanges 6 sealed to both ends of the tee connector 4 by means of bends 5. The reducer body 3 comprises an inner tube body 9, a wear-resistant protective layer 8, and a wear-resistant coating structure 7. The wear-resistant coating structure 7 is coated on the outer surface of the wear-resistant protective layer 8, and the wear-resistant protective layer 8 is wrapped around the outer surface of the inner tube body 9.

[0023] Furthermore, the wear-resistant protective layer 8 includes a metal-ceramic composite layer 10, a polymer composite layer 11, an alloy structure layer 12, and a glass fiber protective layer 13. The metal-ceramic composite layer 10 is disposed on the outer surface of the polymer composite layer 11, the polymer composite layer 11 is disposed on the outer surface of the alloy structure layer 12, and the alloy structure layer 12 is disposed on the outer surface of the glass fiber protective layer 13.

[0024] Furthermore, the wear-resistant coating structure 7 is a graphene-modified ceramic coating structure, and the sp of the graphene-modified ceramic coating structure 2 The hybrid structure increases the coating hardness by 20-40%, thus providing excellent wear-resistant protection.

[0025] Furthermore, the polymer composite layer 11 is made of ultra-high molecular weight polyethylene and polyurethane elastomer structure. The molecular chain winding density of ultra-high molecular weight polyethylene and polyurethane elastomer structure is extremely high, and the tensile strength reaches 40-50MPa, which is 3 times that of ordinary PE material structure, and has good tensile and wear-resistant protective performance.

[0026] Furthermore, the interior of the alloy structure layer 12 is made of tungsten cobalt hard alloy structure. By setting the tungsten cobalt hard alloy structure, the overall hardness and structural strength of the pipe are improved, making it less prone to deformation and damage.

[0027] Furthermore, the glass fiber protective layer 13 is made of glass fiber structure and has the advantages of high wear resistance and toughness, which can further protect the inner tube 9 from wear.

[0028] Furthermore, an installation plate 1 is provided on the outer surface of the reducer body 3, and a fixing slot 2 is provided on the surface of the installation plate 1 to facilitate quick installation and fixing of the reducer body 3.

[0029] Working principle: During use, a tee connector 4 is provided at the lower end of the reducer body 3. Both ends of the tee connector 4 are sealed with flanges 6 via bends 5, facilitating convenient assembly and fixing of the various pipes within the reducer body 3. The reducer body 3 includes an inner pipe body 9, a wear-resistant protective layer 8, and a wear-resistant coating structure 7. The wear-resistant coating structure 7 is applied to the outer surface of the wear-resistant protective layer 8, which wraps around the outer surface of the inner pipe body 9. The wear-resistant protective layer 8 includes a metal-ceramic composite layer 10, a polymer composite layer 11, an alloy structure layer 12, and a fiberglass protective layer 13. The wear-resistant coating structure 7 is a graphene-modified ceramic coating structure. 2 The hybrid structure increases the coating hardness by 20-40%, thus providing excellent wear-resistant protection. The polymer composite layer 11 is made of ultra-high molecular weight polyethylene and polyurethane elastomer. The molecular chain winding density of ultra-high molecular weight polyethylene and polyurethane elastomer is extremely high, and the tensile strength reaches 40-50MPa, which is 3 times that of ordinary PE material structure. It has good tensile and wear-resistant protection performance. The alloy structure layer 12 is made of tungsten cobalt hard alloy structure. By setting the tungsten cobalt hard alloy structure, the overall hardness and structural strength of the pipe are improved, and it is not easy to deform and be damaged. The glass fiber protective layer 13 is made of glass fiber structure. The glass fiber protective layer 13 has the advantages of high wear resistance and toughness, which can further protect the inner pipe body 9 from wear.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear resistant pre-insulated reducing piece comprising a reducing piece body (3), characterized in that, The lower end of the reducing pipe body (3) is provided with a tee connector (4), the two ends of the tee connector (4) are sealingly connected with flanges (6) through elbow pieces (5), the reducing pipe body (3) comprises an inner pipe body (9), a wear-resistant protective layer (8) and a wear-resistant coating structure (7), the wear-resistant coating structure (7) is coated on the outer surface of the wear-resistant protective layer (8), and the wear-resistant protective layer (8) is wrapped on the outer surface of the inner pipe body (9).

2. A wear resistant pre-insulated reducing pipe according to claim 1, characterized in that: The wear-resistant protective layer (8) comprises a metal ceramic composite layer (10), a high polymer composite layer (11), an alloy structure layer (12) and a glass fiber protective layer (13), the metal ceramic composite layer (10) is arranged on the outer surface of the high polymer composite layer (11), the high polymer composite layer (11) is arranged on the outer surface of the alloy structure layer (12), and the alloy structure layer (12) is arranged on the outer surface of the glass fiber protective layer (13).

3. A wear resistant pre-insulated reducing pipe according to claim 1, characterized in that: The wear-resistant coating structure (7) is a graphene modified ceramic coating structure.

4. A wear resistant pre-insulated reducing pipe according to claim 1, characterized in that: The high polymer composite layer (11) is pressed by using an ultrahigh molecular weight polyethylene and a polyurethane elastomer structure.

5. A wear resistant pre-insulated reducing pipe according to claim 1, characterized in that: The alloy structure layer (12) is pressed by using a tungsten-cobalt hard alloy structure.

6. A wear resistant pre-insulated reducing pipe according to claim 1, characterized in that: The glass fiber protective layer (13) is pressed by using a glass fiber structure.

7. A wear resistant pre-insulated reducing pipe according to claim 1, characterized in that: The outer surface of the reducing pipe body (3) is provided with a mounting plate (1), and the surface of the mounting plate (1) is provided with fixed slot holes (2).

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