Steel reinforced super high pressure integrated molded PFA tee pipe

Abstract

The utility model discloses a kind of steel bone reinforced type superhigh pressure integrated moulding lining PFA three-way pipes, including outer straight pipe, outer branch pipe, reinforcing pipe, reinforcing branch pipe and anticorrosion lining.The steel bone reinforced type superhigh pressure integrated moulding lining PFA three-way pipe utilizes reinforcing pipe and reinforcing branch pipe to improve the structural strength of anticorrosion lining, under the working condition of larger internal and external pressure difference in pipeline, make outer straight pipe, outer branch pipe and anticorrosion lining have higher deformation prevention and breakage prevention ability, improve the service life of three-way pipe;Anticorrosion lining uses PFA plastic, its material characteristics endows anticorrosion lining excellent corrosion resistance and high temperature resistance, anticorrosion lining covers the inner wall of outer straight pipe and outer branch pipe, and wraps reinforcing pipe, reinforcing branch pipe, main positioning structure, slave positioning structure and limit ring, so that anticorrosion lining can play the role of chemical erosion protection and high temperature protection.

Description

Technical Field

[0001] This utility model relates to a tee pipe, and more particularly to a steel-reinforced ultra-high pressure integrated molded PFA tee pipe. Background Technology

[0002] Tees, also known as pipe tees or tee fittings, are mainly used to change the direction of fluid flow and are used where a branch pipe needs to be installed on the main pipeline. Tees used in the chemical industry often involve strong acids, alkalis, and high temperatures, so they usually require anti-corrosion treatment, which involves pasting or hot-pressing an anti-corrosion lining onto the inner wall of the tee. However, there is little internal support for the anti-corrosion lining, and under high pressure, the anti-corrosion lining is very easy to deform and break, affecting the service life of the tee. Utility Model Content

[0003] Purpose of the utility model: To provide a steel-reinforced ultra-high pressure integrated molded PFA tee pipe, wherein the anti-corrosion lining structure has high strength and can better cope with high pressure conditions in pipelines.

[0004] Technical Solution: The steel-reinforced ultra-high pressure integrated molded PFA tee pipe provided by this utility model includes an outer straight pipe, an outer branch pipe, a reinforcing pipe, a reinforcing branch pipe, and an anti-corrosion liner; the outer branch pipe is fixedly connected to the outer straight pipe; the reinforcing pipe and the reinforcing branch pipe are coaxially installed in the outer straight pipe and the outer branch pipe respectively through a main positioning structure and a secondary positioning structure, and the inner end of the reinforcing branch pipe is connected to the reinforcing pipe; several limiting holes are provided on the reinforcing pipe and the reinforcing branch pipe; the anti-corrosion liner covers the inner wall of the outer straight pipe and the outer branch pipe, and wraps the reinforcing pipe, the reinforcing branch pipe, each main positioning structure, and each secondary positioning structure.

[0005] Furthermore, the main positioning structure includes two main fixing strips and two main insert strips; the two main fixing strips are inclinedly fixed to the inner wall of the outer straight tube, and the two main fixing strips are inclined in opposite directions; the two main insert strips are inclinedly fixed to the outer wall of the reinforcing tube, and their edges are respectively inserted between the two main fixing strips and the inner wall of the outer straight tube.

[0006] Furthermore, the positioning structure includes a fixing strip and a insert strip; the two positioning structures are inclinedly fixed to the inner wall of the outer branch pipe, and the two positioning structures are inclined in opposite directions; the two insert strips are inclinedly fixed to the outer wall of the reinforcing branch pipe, and their edges are respectively inserted between the two fixing strips and the inner wall of the outer branch pipe.

[0007] Furthermore, multiple arc-shaped grooves are provided on the reinforcing pipe; and arc-shaped protrusions inserted into each arc-shaped groove are provided on the inner end of the reinforcing branch pipe.

[0008] Furthermore, positioning flanges are fixed at the openings of the outer straight pipe and the outer branch pipe.

[0009] Furthermore, sealing flanges that are tightly pressed against the corresponding positioning flanges are integrally installed at the three pipe openings of the anti-corrosion lining.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The structural strength of the anti-corrosion lining is improved by utilizing the reinforcing pipe and the reinforcing branch pipe. Under working conditions with a large pressure difference between the inside and outside of the pipeline, the outer straight pipe, outer branch pipe, and anti-corrosion lining have higher resistance to deformation and damage, thus improving the service life of the tee pipe. The anti-corrosion lining is made of PFA plastic, which is fusible polytetrafluoroethylene. Its material properties give the anti-corrosion lining excellent corrosion resistance and high temperature resistance. The anti-corrosion lining covers the inner wall of the outer straight pipe and outer branch pipe, and wraps the reinforcing pipe, reinforcing branch pipe, main positioning structure, secondary positioning structure, and limiting ring, enabling the anti-corrosion lining to provide chemical corrosion protection and high temperature protection for the outer straight pipe, outer branch pipe, reinforcing pipe, reinforcing branch pipe, limiting ring, and positioning structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 AA is a cross-sectional view of this utility model;

[0013] Figure 3 Partial cross-sectional view I of this utility model;

[0014] Figure 4 This is a partial enlargement of the cross-sectional view AA of this utility model. Figure II ;

[0015] In the diagram: 1. Outer straight pipe; 2. Outer branch pipe; 3. Positioning flange; 4. Corrosion-resistant lining; 5. Reinforcing pipe; 6. Limiting ring; 7. Sealing flange; 8. Reinforcing branch pipe; 9. Main fixing strip; 10. Main insert strip; 12. Arc groove; 13. Arc convex strip; Detailed Implementation

[0016] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of this utility model is not limited to the described embodiments.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] In the description of this utility model, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0019] Example 1:

[0020] like Figure 1-4 As shown, the present invention provides a steel-reinforced ultra-high pressure integrated molded PFA tee pipe, comprising: an outer straight pipe 1, an outer branch pipe 2, a reinforcing pipe 5, a reinforcing branch pipe 8, and an anti-corrosion liner 4; one end of the outer branch pipe 2 is fixedly connected to the middle of the outer straight pipe 1, and its axis is perpendicular to the axis of the outer straight pipe 1; the reinforcing pipe 5 is coaxially installed inside the outer straight pipe 1 through multiple main positioning structures; the reinforcing branch pipe 8 is coaxially installed inside the outer branch pipe 2 through multiple secondary positioning structures, and its inner end is connected to the reinforcing pipe 5; the inner wall of the outer branch pipe 2 and the outer... Limiting rings 6 are fixed on the inner walls of both openings of the straight pipe 1; the two openings of the reinforcing pipe 5 are pressed tightly against the opposite sides of the two limiting rings 6 on the outer straight pipe 1; the outer end of the reinforcing branch pipe 8 is pressed tightly against the inner end face of the upper limiting ring 6 of the reinforcing branch pipe 8; several limiting holes are provided on both the reinforcing pipe 5 and the reinforcing branch pipe 8; the anti-corrosion lining 4 covers the inner walls of the outer straight pipe 1 and the outer branch pipe 2, and wraps the reinforcing pipe 5, the reinforcing branch pipe 8, each limiting ring 6, each main positioning structure and each secondary positioning structure; the anti-corrosion lining 4 penetrates and fills each limiting hole.

[0021] The structural strength of the anti-corrosion lining 4 is improved by using reinforcing pipe 5 and reinforcing branch pipe 8. Under working conditions with large pressure differences between the inside and outside of the pipeline, the outer straight pipe 1, outer branch pipe 2, and anti-corrosion lining 4 have higher resistance to deformation and damage, thus improving the service life of the tee pipe. The anti-corrosion lining 4 is made of PFA plastic, which is fusible polytetrafluoroethylene. Its material properties give the anti-corrosion lining 4 excellent corrosion resistance and high temperature resistance. The anti-corrosion lining 4 covers the inner wall of the outer straight pipe 1 and outer branch pipe 2, and wraps the reinforcing pipe 5, reinforcing branch pipe 8, main positioning structure, secondary positioning structure, and limiting ring 6. This allows the anti-corrosion lining 4 to provide chemical corrosion protection and high temperature protection for the outer straight pipe 1, outer branch pipe 2, reinforcing pipe 5, reinforcing branch pipe 8, limiting ring 6, and positioning structure. By using the anti-corrosion lining 4 to penetrate and fill the limiting hole, the bonding between the anti-corrosion lining and the reinforcing pipe 5 and reinforcing branch pipe 8 can be improved, further enhancing the supporting effect of the reinforcing pipe 5 and reinforcing branch pipe 8 on the anti-corrosion lining 4.

[0022] Furthermore, the main positioning structure includes two main fixing strips 9 and two main insert strips 10; the two main fixing strips 9 are fixed obliquely on the inner wall of the outer straight tube 1, and their length direction is parallel to the axis of the outer straight tube; the oblique directions of the two main fixing strips 9 are opposite; the two main insert strips 10 are respectively fixed obliquely on the outer wall of the reinforcing tube 5, and the edges of the two main insert strips 10 are respectively inserted between the two main fixing strips 9 and the inner wall of the outer straight tube 1.

[0023] By inserting two main insert strips 10 between the two main fixing strips 9 and the outer straight pipe 1, the circumferential and radial positioning of the reinforcing pipe 5 can be achieved, preventing the reinforcing pipe 5 from rotating. At the same time, the main insert strips 10 can act as reinforcing ribs, improving the structural strength of the main insert strips 10 and reducing the possibility of deformation and damage of the main insert strips 10 and the anti-corrosion lining 4 inside the outer straight pipe 1 when the negative pressure inside the pipe is strong.

[0024] Furthermore, the positioning structure includes a fixing strip and a insert strip; the two fixing strips are obliquely fixed to the inner wall of the outer branch pipe 2, and their length direction is parallel to the axis of the outer straight pipe; the two fixing strips are obliquely fixed to the outer wall of the reinforcing branch pipe 8, and the edges of the two insert strips are respectively inserted between the two fixing strips and the inner wall of the outer branch pipe 2.

[0025] By using two insert strips respectively inserted between the two fixed strips and the outer branch pipe 2, the circumferential and radial positioning of the reinforced branch pipe 8 can be achieved, preventing the reinforced branch pipe 8 from rotating. At the same time, the insert strips can act as reinforcing ribs, improving the structural strength of the reinforced branch pipe 8 and reducing the possibility of deformation and damage to the reinforced branch pipe 8 and the anti-corrosion lining 4 inside the outer branch pipe 2 when the negative pressure inside the pipe is strong.

[0026] Furthermore, multiple arc-shaped protrusions 13 are spaced apart on the inner edge of the reinforcing branch pipe 8; arc-shaped grooves 12 are provided on the reinforcing pipe 5 for inserting each arc-shaped protrusion 13. The cooperation between the arc-shaped grooves 12 and the arc-shaped protrusions 13 facilitates partitioned installation. After installation, welding can be performed to create an interlocking connection between the inner end of the reinforcing branch pipe 8 and the reinforcing pipe 5, achieving a stable bond.

[0027] Furthermore, positioning flanges 3 are fixed at the inlet of the outer branch pipe 2 and at both inlets of the outer straight pipe 1. The positioning flanges 3 facilitate the docking and fixing of the pipes.

[0028] Furthermore, sealing flanges 7 are integrally installed at the three pipe openings of the anti-corrosion lining 4; the three sealing flanges are respectively pressed tightly onto the three positioning flanges 3. The sealing flanges 7 play a sealing role during the connection. When the pipes are connected, the sealing flanges 7 at the two pipe openings are pressed tightly against the two positioning flanges, which can achieve a good sealing effect.

[0029] In the steel-reinforced ultra-high pressure integrated molded PFA-lined tee pipe provided by this utility model, the anti-corrosion lining 4 is made of PFA plastic.

[0030] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A steel-reinforced ultra-high pressure integrated molded PFA-lined tee pipe, characterized in that: It includes an outer straight pipe (1), an outer branch pipe (2), a reinforcing pipe (5), a reinforcing branch pipe (8), and an anti-corrosion liner (4); the outer branch pipe (2) is fixed on the outer straight pipe (1); the reinforcing pipe (5) and the reinforcing branch pipe (8) are coaxially installed in the outer straight pipe (1) and the outer branch pipe (2) respectively through the main positioning structure and the secondary positioning structure, and the inner end of the reinforcing branch pipe (8) is connected to the reinforcing pipe (5); several limiting holes are provided on the reinforcing pipe (5) and the reinforcing branch pipe (8); the anti-corrosion liner (4) covers the inner wall of the outer straight pipe (1) and the outer branch pipe (2), and wraps the reinforcing pipe (5), the reinforcing branch pipe (8), each main positioning structure and each secondary positioning structure.

2. The steel-reinforced ultra-high pressure integrated molded PFA tee pipe according to claim 1, characterized in that: The main positioning structure includes two main fixing strips (9) and two main insert strips (10); the two main fixing strips (9) are fixed at an angle to the inner wall of the outer straight tube (1), and the two main fixing strips (9) are inclined in opposite directions; the two main insert strips (10) are fixed at an angle to the outer wall of the reinforcing tube (5), and their edges are respectively inserted between the two main fixing strips (9) and the inner wall of the outer straight tube (1).

3. The steel-reinforced ultra-high pressure integrated molded PFA tee pipe according to claim 1, characterized in that: The positioning structure includes a fixing strip and a insert strip; the two fixing strips are inclinedly fixed to the inner wall of the outer branch pipe (2), and the two fixing strips are inclined in opposite directions; the two insert strips are inclinedly fixed to the outer wall of the reinforcing branch pipe (8), and their edges are respectively inserted between the two fixing strips and the inner wall of the outer branch pipe (2).

4. The steel-reinforced ultra-high pressure integrated molded PFA tee pipe according to claim 1, characterized in that: Multiple arc-shaped grooves (12) are provided on the reinforcing pipe (5); arc-shaped protrusions (13) inserted into each arc-shaped groove (12) are provided on the inner end of the reinforcing branch pipe (8).

5. The steel-reinforced ultra-high pressure integrated molded PFA tee pipe according to claim 1, characterized in that: Positioning flanges (3) are fixed at the openings of the outer straight pipe (1), the outer branch pipe (2), and the pipe openings.

6. The steel-reinforced ultra-high pressure integrated molded PFA tee pipe according to claim 5, characterized in that: At each of the three pipe openings of the anti-corrosion lining (4), a sealing flange (7) is integrally installed and pressed tightly against the corresponding positioning flange (3).

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