Novel wear-resistant tee joint with combined structure

Abstract

The utility model discloses a novel wear-resistant tee joint of a combined structure. An outer wall steel pipe, a surfacing bonding layer and a surfacing layer are sequentially arranged at the intersection of the tee joint from outside to inside. The surfacing layer has excellent wear resistance, the alloy layer which is compact in structure and uniform in microstructure is formed on the inner surface of the tee joint intersection in a surfacing mode, scouring and friction of solid particles can be effectively resisted, and a layer of compact oxidation film can be formed on the inner surface of the tee joint intersection through the chromium element in a welding material; and an external corrosive medium is prevented from being in contact with the metal matrix, so that an anti-corrosion effect is achieved. The first connector, the second connector and the third connector are the same in structure and are sequentially provided with an outer wall steel pipe, a daub layer and an aluminum oxide ceramic layer from outside to inside, so that the abrasion-resistant tee joint has the product performance of erosion resistance, corrosion resistance and light weight at the same time.

Description

Technical Field

[0001] This utility model relates to the field of tee fittings technology, and in particular to a wear-resistant tee with a novel combined structure. Background Technology

[0002] In modern industrial systems, the stable and reliable operation of equipment plays a fundamental and crucial role in industrial development. Tee fittings are an important component of the piping systems in various equipment or systems.

[0003] like Figure 1 As shown, the existing ceramic wear-resistant tee consists of an outer steel pipe 1, a putty layer 2, and an alumina ceramic layer 3, from the outside to the inside. The alumina ceramic layer 3 has high hardness and high wear resistance, which can effectively resist the wear and erosion of fluids and extend its service life; at the same time, it also has excellent corrosion resistance, which can resist the erosion of a variety of chemical substances and is suitable for various harsh fluid environments.

[0004] Although the alumina ceramic layer 3 has excellent resistance to fluid abrasion and erosion, when the ceramic sheet is used to line the tee, it is not tightly attached at the intersection of the tee and is prone to falling off, which affects the service life of the tee fitting.

[0005] Furthermore, some pipelines in the pipeline system also need to transport particulate media. The rapid flow of particulate media in the pipeline will impact the alumina ceramic layer 3. Since the ceramic sheet used as the lining is brittle, it is difficult to meet the application scenarios where the particulate media has a high flow rate and large particles. Utility Model Content

[0006] The purpose of this invention is to provide a novel composite structure for wear-resistant tees, in order to solve the problem that the ceramic sheets lining the intersection of existing ceramic wear-resistant tees are brittle and cannot be used in applications with high flow rates and large particles in particulate media.

[0007] To solve the above-mentioned technical problems, this utility model provides a novel wear-resistant tee with a combined structure, including a tee main pipe and a tee branch pipe;

[0008] The tee branch pipe is obliquely connected to the side wall of the tee main pipe and is in communication with the tee main pipe;

[0009] One end of the tee main pipe is a first interface, and the other end is a second interface; the end of the tee branch pipe furthest from the tee main pipe is a third interface;

[0010] The structure at the intersection of the main tee pipe and the branch tee pipe, from the outside to the inside, consists of an outer steel pipe, a weld overlay layer, and a weld overlay layer.

[0011] The first interface, the second interface, and the third interface have the same structure, consisting of an outer steel pipe, a putty layer, and an alumina ceramic layer, from the outside in.

[0012] Preferably, the weld overlay layer covers the inner wall of the outer steel pipe through the weld overlay bonding layer.

[0013] Preferably, the alumina ceramic layer is applied to the inner wall of the outer steel pipe via the putty layer.

[0014] Preferably, the alumina ceramic layer on the inner wall of the first interface, the second interface, and the third interface is serpentinely connected to the weld overlay layer at the intersection.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The structure of the intersecting joint of this wear-resistant tee, from the outside in, consists of an outer steel pipe, a weld overlay layer, and a weld overlay layer. The weld overlay layer exhibits excellent wear resistance. By overlaying the weld over the inner surface of the tee intersection to form a dense alloy layer with a uniform microstructure, it can effectively resist the erosion and friction of solid particles. Furthermore, the chromium element in the welding material can form a dense oxide film on the inner surface of the tee intersection, preventing external corrosive media from contacting the metal substrate, thereby playing a role in corrosion resistance. The first, second, and third joints have the same structure, consisting of an outer steel pipe, a putty layer, and an alumina ceramic layer from the outside in. This allows the wear-resistant tee to simultaneously achieve product performance in terms of erosion resistance, corrosion resistance, and lightweight design. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an existing ceramic wear-resistant tee;

[0018] Figure 2 This is a schematic diagram of the wear-resistant tee with a novel combined structure provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the wear-resistant tee intersection of the novel combined structure provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the wear-resistant tee interface of the novel combined structure provided by this utility model.

[0021] In the diagram: 1. Outer steel pipe; 2. Mortar layer; 3. Alumina ceramic layer; 4. Weld overlay layer; 5. Weld overlay layer; 10. Main tee pipe; 20. Branch tee pipe; 30. First interface; 40. Second interface; 50. Third interface. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0025] This utility model provides a novel wear-resistant tee with a combined structure. Please refer to [link / reference]. Figure 2-4 It includes a tee main pipe 10 and a tee branch pipe 20; the tee branch pipe 20 is obliquely connected to the side wall of the tee main pipe 10 and communicates with the tee main pipe 10; one end of the tee main pipe 10 is a first interface 30 and the other end is a second interface 40; the end of the tee branch pipe 20 away from the tee main pipe 10 is a third interface 50; the structure at the intersection of the tee main pipe 10 and the tee branch pipe 20, from the outside to the inside, consists of an outer wall steel pipe 1, a weld overlay layer 4, and a weld overlay layer 5; the first interface 30, the second interface 40, and the third interface 50 have the same structure, from the outside to the inside, consisting of an outer wall steel pipe 1, a putty layer 2, and an alumina ceramic layer 3.

[0026] Specifically, the weld overlay 5 covers the inner wall of the outer steel pipe 1 through the weld overlay bonding layer 4, and the alumina ceramic layer 3 covers the inner wall of the outer steel pipe 1 through the putty layer 2. The alumina ceramic layer 3 on the inner wall of the first interface 30, the second interface 40, and the third interface 50 is sequentially connected to the weld overlay 5 at the intersection.

[0027] The structure of the intersecting joint of this wear-resistant tee, from the outside in, consists of an outer steel pipe, a weld overlay layer, and a weld overlay layer. The weld overlay layer exhibits excellent wear resistance. By overlaying the weld over the inner surface of the tee intersection to form a dense alloy layer with a uniform microstructure, it can effectively resist the erosion and friction of solid particles. Furthermore, the chromium element in the welding material can form a dense oxide film on the inner surface of the tee intersection, preventing external corrosive media from contacting the metal substrate, thereby playing a role in corrosion resistance. The first, second, and third joints have the same structure, consisting of an outer steel pipe, a putty layer, and an alumina ceramic layer from the outside in. This allows the wear-resistant tee to simultaneously achieve product performance in terms of erosion resistance, corrosion resistance, and lightweight design.

[0028] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A novel wear-resistant tee with a composite structure, characterized in that, Including the main three-way pipe (10) and the branch three-way pipe (20); The three-way branch pipe (20) is obliquely connected to the side wall of the three-way main pipe (10) and is connected to the three-way main pipe (10); One end of the tee main pipe (10) is a first interface (30), and the other end is a second interface (40); the end of the tee branch pipe (20) away from the tee main pipe (10) is a third interface (50). The structure at the intersection of the tee main pipe (10) and the tee branch pipe (20) consists of an outer steel pipe (1), a weld overlay layer (4), and a weld overlay layer (5) from the outside to the inside. The first interface (30), the second interface (40) and the third interface (50) have the same structure, and from the outside to the inside are an outer steel pipe (1), a putty layer (2) and an alumina ceramic layer (3).

2. The wear-resistant tee with a novel combined structure as described in claim 1, characterized in that, The weld overlay (5) covers the inner wall of the outer steel pipe (1) through the weld overlay bonding layer (4).

3. The wear-resistant tee with a novel combined structure as described in claim 2, characterized in that, The alumina ceramic layer (3) covers the inner wall of the outer steel pipe (1) through the putty layer (2).

4. The wear-resistant tee with a novel combined structure as described in claim 3, characterized in that, The alumina ceramic layer (3) on the inner wall of the first interface (30), the second interface (40) and the third interface (50) are respectively connected to the weld overlay layer (5) at the intersection.

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