Steel reinforced super high pressure integrated molded PFA reducing pipe

Abstract

The utility model discloses a kind of steel bone reinforced type superhigh pressure integrated moulding lining PFA reducing pipe, including reducing outer tube, reinforcing conical pipe, reinforcing straight pipe and anticorrosion lining.The steel bone reinforced type superhigh pressure integrated moulding lining PFA reducing pipe utilizes reinforcing conical pipe and reinforcing straight pipe butt joint fixation, supports to anticorrosion lining, make the inside of anticorrosion lining exist supporting force, when pressure in reducing pipe is larger, the structural strength of anticorrosion lining higher can effectively reduce the influence of received pipeline internal pressure, not easy to be deformed and damaged;Utilize anticorrosion lining to penetrate and fill through hole, improve the combination degree between anticorrosion lining and reinforcing conical pipe and reinforcing straight pipe, improve the supporting effect of reinforcing conical pipe and reinforcing straight pipe to anticorrosion lining;Anticorrosion lining uses PFA plastic, and its corrosion resistance and high temperature resistance are excellent, anticorrosion lining covers the inner wall of reducing outer tube and wraps reinforcing conical pipe and reinforcing straight pipe, so that reducing pipe is corrosion and high temperature resistant.

Description

Technical Field

[0001] This utility model relates to a reducer, and more particularly to a steel-reinforced ultra-high pressure integrated molded PFA reducer. 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 widely used in transporting water, oil, natural gas, and other liquids or gases. Over time, reducers may be damaged due to various reasons, such as corrosion, wear, internal pressure, or environmental factors. Existing technology includes fluoropolymer-lined reducers, which offer good corrosion resistance and high-temperature resistance, but they struggle to handle negative pressure conditions inside the pipe. Under negative pressure, the fluoropolymer lining is easily peeled off from the inner wall of the steel pipe, causing deformation and breakage. Utility Model Content

[0003] Purpose of the utility model: To provide a steel-reinforced ultra-high pressure integrated molded PFA reducer with a high strength of its anti-corrosion lining structure, which is not easily affected by the pressure inside the pipeline.

[0004] Technical solution: The steel-reinforced ultra-high pressure integrated molded PFA reducer provided by this utility model includes an outer reducer, a reinforcing tapered tube, a reinforcing straight tube, and an anti-corrosion liner; the reinforcing tapered tube and the reinforcing straight tube are coaxially installed inside the outer reducer; the inner end of the reinforcing tapered tube is connected to the inner end of the reinforcing straight tube; several through holes are provided on both the reinforcing tapered tube and the reinforcing straight tube; the anti-corrosion liner covers the inner wall of the outer reducer, wraps around the reinforcing tapered tube and the reinforcing straight tube, and penetrates and fills each through hole.

[0005] Furthermore, two sets of positioning protrusions are coaxially arranged on the outer wall of the reinforced tapered tube; two pairs of positioning protrusions form one set; two sets of fixing protrusions are fixed on the inner wall of the tapered section of the outer tube with different diameters; two pairs of fixing protrusions form one set; the two sets of positioning protrusions are respectively located between the two sets of fixing protrusions.

[0006] Furthermore, multiple limiting grooves are spaced apart on the inner end of the reinforced straight tube; and arc-shaped protrusions are snapped and fixed in each limiting groove on the inner end of the reinforced tapered tube.

[0007] Furthermore, multiple limiting strips are spaced apart on the inner wall of the reducing outer tube; and a snap-fit ​​strip is integrally provided on the wall of each through hole on the reinforced straight tube, which is fixed to the adjacent limiting strip.

[0008] Furthermore, mounting flanges are fixed at both ends of the reducing outer pipe; and limiting flanges that are pressed tightly against the corresponding mounting flanges are provided at both ends of the anti-corrosion lining.

[0009] Compared with the prior art, the advantages of this utility model are as follows: By using the connection and fixation of the reinforcing tapered tube and the reinforcing straight tube, the anti-corrosion lining is supported, providing internal support. When the pressure inside the reducer is high, the high structural strength of the anti-corrosion lining can effectively reduce the impact of the pressure inside the pipe, making it less prone to deformation and damage. The anti-corrosion lining penetrates and fills the through holes, improving the bonding between the anti-corrosion lining and the reinforcing tapered tube and the reinforcing straight tube, thus enhancing the support effect of the reinforcing tapered tube and the reinforcing straight tube on the anti-corrosion lining. The anti-corrosion lining is made of PFA plastic, which has excellent corrosion resistance and high temperature resistance. The anti-corrosion lining covers the inner wall of the reducer and wraps the reinforcing tapered tube and the reinforcing straight tube, making the reducer corrosion-resistant and high-temperature resistant. Attached Figure Description

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

[0011] Figure 2 This is a drawing of the reinforced tapered tube part of this utility model;

[0012] Figure 3 This is a partial sectional view of the reinforced straight pipe of this utility model;

[0013] Figure 4 This is a partially enlarged cross-sectional view of the present invention;

[0014] In the diagram: 1. Reducer outer tube; 2. Reinforced straight tube; 3. Reinforced tapered tube; 4. Limiting flange; 6. Mounting flange; 7. Corrosion-resistant lining; 9. Fixing convex ring; 10. Positioning convex ring; 11. Through hole; 12. Arc-shaped convex strip; 13. Limiting strip. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] 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.

[0018] Example 1:

[0019] like Figure 1-4 As shown, the present invention provides a steel-reinforced ultra-high pressure integrated molded PFA reducer, comprising: a reducer outer tube 1, a reinforcing tapered tube 3, a reinforcing straight tube 2, and an anti-corrosion liner 7; the reinforcing tapered tube 3 and the reinforcing straight tube 2 are both installed inside the reducer outer tube 1, and are respectively located in the tapered section and the straight section of the reducer outer tube 1; the inner end of the reinforcing tapered tube 3 is connected to the inner end of the reinforcing straight tube 2; several through holes 11 are provided on both the reinforcing tapered tube 3 and the reinforcing straight tube 2; the anti-corrosion liner 7 covers the inner wall of the reducer outer tube 1, wraps the reinforcing tapered tube 3 and the reinforcing straight tube 2, and penetrates and fills each through hole 11.

[0020] The anti-corrosion liner 7 is supported by the connection and fixation of the reinforcing tapered tube 3 and the reinforcing straight tube 2, so that there is a supporting force inside the anti-corrosion liner 7. When the pressure inside the reducer is high, the high structural strength of the anti-corrosion liner 7 can effectively reduce the impact of the pressure inside the pipeline and is not easy to deform or break. The anti-corrosion liner 7 passes through and fills the through hole 11, which improves the bonding between the anti-corrosion liner 7 and the reinforcing tapered tube 3 and the reinforcing straight tube 2, and improves the supporting effect of the reinforcing tapered tube 3 and the reinforcing straight tube 2 on the anti-corrosion liner 7. The anti-corrosion liner 7 is made of PFA plastic, which has excellent corrosion resistance and high temperature resistance. The anti-corrosion liner 7 covers the inner wall of the reducer 1 and wraps the reinforcing tapered tube 3 and the reinforcing straight tube 2, making the reducer corrosion resistant and high temperature resistant.

[0021] Furthermore, two sets of positioning protrusions 10 are coaxially arranged on the outer wall of the reinforcing tapered tube 3; two pairs of positioning protrusions 10 form a group; the two positioning protrusions 10 of each pair are located at two equidistant points on the same circumference of the reinforcing tapered tube 3; the two pairs of positioning protrusions 10 in the same group are located at the same circumferential angle; in the axial projection, the sector formed by the two ends of each positioning protrusion 10 in one group and the corresponding points on the axis of the reinforcing tapered tube 3 does not coincide with the sector formed by the two ends of each positioning protrusion 10 in the other group and the corresponding points on the axis of the reinforcing tapered tube 3.

[0022] Two sets of fixing protrusions 9 are fixed on the inner wall of the conical section of the reducing outer tube 1; two pairs of fixing protrusions 9 form a group; the two fixing protrusions of each pair are located at two equal division points on the same circumference of the reducing outer tube 1; the two pairs of fixing protrusions 9 in the same group are used to press on the opposite sides of the two pairs of positioning protrusions 10 in the corresponding group.

[0023] Two pairs of fixed protruding rings 9 of the same group are used to limit and lock two pairs of positioning protruding rings 10 of the same group. During installation, the outer end of the reinforcing tapered tube 3 is inserted into the tapered section of the reducing outer tube 1, so that the positioning protruding ring 10 passes through the gap between the two fixed protruding rings 9 of the same pair. After reaching the corresponding position, the reinforcing tapered tube 3 is rotated so that the two sets of positioning protruding rings 10 are rotated to the corresponding positions. That is, the two pairs of positioning protruding rings 10 of the same group are respectively attached to the opposite sides of the two pairs of fixed protruding rings 9 of the corresponding group. At this time, the fixed protruding rings 9 and the positioning protruding rings 10 can position the reinforcing tapered tube 3 axially and circumferentially, and facilitate installation. After the position of the reinforcing tapered tube 3 is adjusted, the attached fixed protruding rings 9 and positioning protruding rings 10 can be spot welded to fix them, further playing a positioning role and improving the structural strength of the reinforcing tapered tube 3.

[0024] Furthermore, multiple arc-shaped protrusions 12 are spaced apart on the inner edge of the reinforcing tapered tube 3; multiple limiting grooves are spaced apart on the inner edge of the reinforcing straight tube 2; each arc-shaped protrusion 12 is snapped and fixed in its respective limiting groove. By using the arc-shaped protrusions 12 to snap and fix in the limiting groove, the connection between the reinforcing tapered tube 3 and the reinforcing straight tube 2 can be achieved, and the reinforcing tapered tube 3 can be circumferentially positioned. The fixing method can be welding, which improves the strength of the connection and facilitates the separate installation of the reinforcing tapered tube 3 and the reinforcing straight tube 2.

[0025] Furthermore, a snap-fit ​​strip 14 is integrally provided on the wall of each through hole 11 on the reinforced straight pipe 2; multiple limiting strips 13 are provided at intervals on the inner wall of the straight section of the reducing outer pipe 1, and the length direction of the limiting strip 13 is parallel to the axis of the reducing outer pipe 1; the end face of the limiting strip 13 is L-shaped; each snap-fit ​​strip 14 is bent and snapped to the adjacent limiting strip 13.

[0026] By bending and securing the buckle 14 to the adjacent limiting strip 13, the buckle 14 can be positioned and fixed. The fixing method can be welding, which makes the buckle positioning reliable, thereby positioning and fixing the reinforced straight tube 2, which can ensure the compressive strength of the reinforced straight tube 2 to a certain extent.

[0027] Furthermore, mounting flanges 6 are fixed at both ends of the reducing outer pipe 1; limiting flanges 4 are provided at both ends of the anti-corrosion lining 7; the two limiting flanges are pressed tightly against the mounting flanges 6 on the corresponding sides.

[0028] The mounting flange 6 facilitates docking installation; the limiting flange 4, when docked, is squeezed by the mounting flange 6 and fits tightly with the sealing flange of the external pipeline, achieving a good sealing effect.

[0029] In the steel-reinforced ultra-high pressure integrated molded PFA reducer provided by this utility model, the anti-corrosion lining 7 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 reducer, characterized in that: It includes an outer reducing tube (1), a reinforcing tapered tube (3), a reinforcing straight tube (2), and an anti-corrosion liner (7); the reinforcing tapered tube (3) and the reinforcing straight tube (2) are coaxially installed inside the outer reducing tube (1); the inner end of the reinforcing tapered tube (3) is connected to the inner end of the reinforcing straight tube (2); several through holes (11) are provided on both the reinforcing tapered tube (3) and the reinforcing straight tube (2); the anti-corrosion liner (7) covers the inner wall of the outer reducing tube (1), wraps the reinforcing tapered tube (3) and the reinforcing straight tube (2), and penetrates and fills each through hole (11).

2. The steel-reinforced ultra-high pressure integrated molded PFA reducer according to claim 1, characterized in that: Two sets of positioning protrusions (10) are coaxially arranged on the outer wall of the reinforced tapered tube (3); the two pairs of positioning protrusions (10) form a set; two sets of fixing protrusions (9) are fixed on the inner wall of the tapered section of the outer tube (1) with different diameters; the two pairs of fixing protrusions (9) form a set; the two sets of positioning protrusions (10) are located between the two sets of fixing protrusions (9).

3. The steel-reinforced ultra-high pressure integrated molded PFA reducer according to claim 1, characterized in that: Multiple limiting grooves are provided at intervals on the inner end of the reinforced straight tube (2); and each arc-shaped protrusion (12) is provided on the inner end of the reinforced tapered tube (3) and is fixed in each limiting groove.

4. The steel-reinforced ultra-high pressure integrated molded PFA reducer according to claim 1, characterized in that: Multiple limiting strips (13) are spaced apart on the inner wall of the outer tube (1); and a snap strip (14) is integrally provided on the wall of each through hole (11) on the reinforced straight tube (2) and is snapped to the adjacent limiting strip (13).

5. The steel-reinforced ultra-high pressure integrated molded PFA reducer according to claim 1, characterized in that: Mounting flanges (6) are fixed at both ends of the reducing outer pipe (1); limiting flanges (4) are provided at both ends of the anti-corrosion lining (7) and are pressed tightly against the mounting flanges (6) on the corresponding sides.

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