High-strength corrosion-resistant SMC glass fiber reinforced plastic compression molding pipe

Abstract

The invention relates to the field of pipelines, in particular to a high-strength corrosion-resistant SMC glass fiber reinforced plastic compression molding pipe, a plurality of annular inner reinforcing ribs are arranged on the inner wall of the molding pipe, spiral ribs are fixedly arranged on the inner wall of the molding pipe, and the inner reinforcing ribs are connected through oblique connecting bridges of the spiral ribs; a circulation channel is formed in each spiral rib, a liquid outlet cavity is formed in the lowest position of each spiral rib, elastic pieces are installed on the portions, located on the outer sides of the liquid outlet cavities, of the inner wall of the forming pipe, and the elastic pieces are pushed by liquid to deform so as to block the liquid outlet cavities. According to the forming pipe, the inner reinforcing ribs and the outer reinforcing ribs of the forming pipe are oppositely arranged and matched with the spiral rib and the inclined connecting bridge structure, the overall pressure resistance of the forming pipe can be improved, a circulation channel is formed in the spiral rib, and the circulation channel can be blocked when liquid flows through cooperation of an elastic piece and a liquid outlet cavity; and during flow stopping, automatic resetting and liquid discharging are achieved, the corrosion risk caused by residual liquid retention is reduced, the corrosion resistance of the formed pipe is improved, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of pipeline technology, and in particular to high-strength, corrosion-resistant SMC fiberglass molded pipe. Background Technology

[0002] Pipelines, as essential components of industrial transportation systems, are widely used in chemical, water supply and drainage, power, municipal engineering, marine environments, and the transportation of corrosive media. With increasingly complex operating environments, existing pipelines not only need high mechanical strength and pressure resistance, but also excellent corrosion resistance, dimensional stability, and a long service life.

[0003] Existing pipe materials generally suffer from insufficient structural strength during practical use, especially when subjected to external pressure, impact, or long-term loads, making them prone to deformation, cracking, or even damage, affecting their stability and service life. For pipe products requiring high load-bearing capacity, existing structures are insufficient to meet practical application requirements. Therefore, there is an urgent need for a high-strength, corrosion-resistant SMC fiberglass molded pipe. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength, corrosion-resistant SMC fiberglass molded tube.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-strength, corrosion-resistant SMC fiberglass molded tube includes a molded tube with multiple annular inner reinforcing ribs on its inner wall and spiral ribs fixedly installed on the inner wall of the molded tube. The inner reinforcing ribs are connected by oblique bridges through the spiral ribs. The spiral ribs have flow channels inside, and each spiral rib has a liquid outlet cavity at its lowest point. Elastic sheets are installed on the inner wall of the molded tube outside the liquid outlet cavities. The elastic sheets deform under the pressure of liquid to seal the liquid outlet cavities.

[0006] Furthermore, in a preferred configuration, a plurality of annular outer reinforcing ribs are fixedly provided on the outer wall of the molded tube, and the outer reinforcing ribs and the inner reinforcing ribs are arranged opposite to each other.

[0007] In addition, a preferred structure is that one end of the spiral rib is fixedly provided with an expansion port, and the expansion port is provided with a liquid inlet, and the liquid enters the flow channel through the liquid inlet.

[0008] Furthermore, in a preferred configuration, both ends of the forming tube are provided with openings, and the liquid inside the forming tube flows toward the expansion opening.

[0009] In addition, a preferred structure is that a fixing seat is fixedly provided on the inner wall of the molding tube on one side of the liquid outlet cavity, and the fixing seats are all fixedly provided on the side facing the liquid flow.

[0010] Furthermore, in a preferred configuration, a vertical elastic sheet is fixedly mounted on the fixing base, and the elastic sheet deforms under the pressure of the liquid to cover the liquid outlet cavity.

[0011] Furthermore, in a preferred configuration, a silicone element is fixedly disposed on the side of the elastic sheet facing the liquid outlet cavity, and the silicone element is adapted to the liquid outlet cavity.

[0012] Furthermore, in a preferred configuration, a baffle plate is fixedly provided on the other side of the elastic sheet, and the baffle plate is thin-walled.

[0013] In addition, a preferred structure is that a pad is fixedly disposed on the fixing base below the silicone part, with one side of the pad facing the elastic sheet being a right angle and the other side being an arc angle.

[0014] The beneficial effects of this invention are as follows: by setting the inner and outer reinforcing ribs of the molding tube in opposite directions, and in combination with the spiral ribs and the oblique connecting bridge structure, the overall compressive strength of the molding tube can be improved. The spiral ribs have a flow channel inside, and through the cooperation of the elastic sheet and the liquid outlet cavity, the flow channel can be blocked when the liquid is flowing, and the liquid can be automatically reset and drained when the flow stops, reducing the risk of corrosion caused by residual liquid retention, thereby improving the corrosion resistance and service life of the molding tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the high-strength and corrosion-resistant SMC fiberglass molded tube proposed in this invention. Figure 2 This is a cross-sectional view of the molded tube proposed in this invention; Figure 3 for Figure 2 Enlarged detail of the expansion port in the middle; Figure 4 for Figure 2 Enlarged detail of the mounting bracket in the middle; Figure 5 for Figure 4 A schematic diagram of the structure after the fixing base is hidden; Figure 6 This is a schematic diagram of the structure of the fixing base proposed in this invention; Figure 7 for Figure 6 A schematic diagram of the structure on the other side of the fixing seat.

[0016] In the figure: 1. Molded tube, 11. Pipe opening, 12. Outer reinforcing rib, 13. Inner reinforcing rib, 2. Spiral rib, 21. Flow channel, 22. Expansion port, 221. Liquid inlet, 23. Liquid outlet, 3. Fixing seat, 31. Elastic sheet, 32. Baffle plate, 33. Silicone part, 34. Pad block. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Reference Figure 1-7 A high-strength, corrosion-resistant SMC fiberglass molded tube is provided, comprising a molded tube 1. The molded tube 1 is made of SMC fiberglass material through molding, possessing high structural strength and corrosion resistance. Multiple annular inner reinforcing ribs 13 are provided on the inner wall of the molded tube 1, and multiple annular outer reinforcing ribs 12 are fixedly provided on the outer wall of the molded tube 1. The outer reinforcing ribs 12 and the inner reinforcing ribs 13 are arranged opposite each other to form a mutually reinforcing support structure on the inner and outer sides of the molded tube 1, thereby improving the overall compressive strength and deformation resistance of the molded tube 1.

[0019] Among them, a spiral rib 2 is fixedly provided on the inner wall of the forming tube 1, and the inner reinforcing ribs 13 are connected by the spiral ribs 2 at an oblique angle, so that multiple inner reinforcing ribs 13 form a linkage support structure through the spiral ribs 2, thereby improving the overall stability of the inner wall of the forming tube 1.

[0020] The spiral rib 2 has a flow channel 21 inside, and an expansion port 22 is fixedly provided at one end of the spiral rib 2. An inlet port 221 is provided on the expansion port 22. Liquid can enter the flow channel 21 through the inlet port 221 and flow along the flow channel 21.

[0021] The lowest point of each spiral rib 2 is provided with a liquid outlet cavity 23. An elastic sheet 31 is installed on the inner wall of the forming tube 1 on the outside of the liquid outlet cavity 23. The elastic sheet 31 is deformed by the liquid to block the liquid outlet cavity 23.

[0022] In this process, a fixing seat 3 is fixedly installed on the inner wall of the forming tube 1 on one side of the liquid outlet cavity 23, and the fixing seat 3 is fixedly installed on the side facing the liquid flow. A vertical elastic sheet 31 is fixedly installed on the fixing seat 3. When the liquid flows through, the elastic sheet 31 is deformed by the liquid pressure, causing it to move towards the liquid outlet cavity 23 and cover the liquid outlet cavity 23, thereby blocking the liquid outlet cavity 23.

[0023] A silicone element 33 is fixedly disposed on the side of the elastic sheet 31 facing the liquid outlet cavity 23, and the silicone element 33 is adapted to the liquid outlet cavity 23. By setting the silicone element 33, a better fit can be formed between the elastic sheet 31 and the liquid outlet cavity 23 after deformation, thereby improving the sealing performance of the liquid outlet cavity 23 and preventing liquid from leaking ineffectively from the liquid outlet cavity 23.

[0024] A baffle plate 32 is fixedly provided on the other side of the elastic sheet 31. The baffle plate 32 is thin-walled. By setting the baffle plate 32, the flushing effect of the liquid on the elastic sheet 31 can be improved, so as to ensure that the elastic sheet 31 can generate sufficient deformation.

[0025] A pad 34 is fixedly mounted on the mounting base 3 below the silicone part 33. The pad 34 has a right-angled surface on one side facing the elastic sheet 31 and an arc-shaped surface on the other side. The pad 34 provides support for the lower part of the elastic sheet 31, making the elastic sheet 31 more stable under the force of liquid. At the same time, the arc-shaped surface reduces local stress concentration, improving the service life and stability of the elastic sheet 31.

[0026] In this embodiment, a plurality of annular outer reinforcing ribs 12 are provided on the outer wall of the molded tube 1. The outer reinforcing ribs 12 and the inner reinforcing ribs 13 are arranged correspondingly to each other, so that the molded tube 1 has a reinforcing support effect on both the inner and outer sides, thereby improving the structural strength of the molded tube 1 under pressure, impact and long-term use conditions.

[0027] Furthermore, the spiral rib 2 has a flow channel 21 inside, and during liquid flow, most of the liquid still passes through the main flow channel of the forming tube 1, with only a small portion of the liquid entering the flow channel 21. This structural design avoids increasing flow resistance by directing all the liquid into the flow channel 21, ensuring the overall conveying efficiency of the forming tube 1. On the other hand, the small portion of liquid entering the flow channel 21 continuously flushes the inner wall of the channel, reducing impurity adhesion, deposition, and scaling, thereby improving the self-cleaning ability and corrosion resistance of the spiral rib 2.

[0028] Furthermore, since the flow channel 21 is spiral, the liquid in the flow channel 21 will generate a certain centrifugal force when it flows, thereby increasing the strength of the spiral rib 2 and further improving the strength of the forming tube 1.

[0029] Furthermore, since the spiral rib 2 is hollow, it can reduce its own weight and material usage compared to a solid structure, thereby reducing the overall manufacturing cost of the formed tube 1 while ensuring the strengthening of the support function.

[0030] The liquid enters from one end of the forming tube 1. Most of the liquid flows directly inside the forming tube 1, while a small portion of the liquid enters the flow channel 21 through the inlet 221 on the expansion port 22, and then flows along the flow channel 21.

[0031] At this time, the liquid flowing directly inside the forming tube 1 washes over the elastic sheet 31 and applies pressure to it, causing the elastic sheet 31 to deform and adhere to the outside of the liquid outlet cavity 23, thereby blocking the liquid outlet cavity 23. Since the spiral rib 2 has a flow channel 21 inside, the liquid can be guided and transported along the spiral path during the flow process, making the flow path of the liquid inside the forming tube 1 more reasonable.

[0032] When the liquid in the molding tube 1 decreases or stops flowing, the elastic sheet 31 resets under its own elastic recovery, and the silicone part 33 disengages from the liquid outlet chamber 23. The liquid outlet chamber 23 reopens, and the liquid remaining in the flow channel 21 can be discharged through the liquid outlet chamber 23, thus preventing the liquid from remaining inside the spiral rib 2 for a long time.

[0033] In this invention, the inner reinforcing ribs 13 and outer reinforcing ribs 12 of the forming tube 1 are arranged opposite each other, and in conjunction with the spiral ribs 2 and the oblique connecting bridge structure, the overall compressive strength of the forming tube 1 can be improved. The spiral ribs 2 have a flow channel 21 inside, and through the cooperation of the elastic sheet 31 and the liquid outlet chamber 23, the flow channel 21 can be blocked when the liquid is flowing, and automatically reset and drain when the flow stops, reducing the risk of corrosion caused by residual liquid retention, thereby improving the corrosion resistance and service life of the forming tube 1.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-strength, corrosion-resistant SMC fiberglass molded tube, comprising a molded tube (1), characterized in that, The inner wall of the forming tube (1) is provided with a plurality of annular inner reinforcing ribs (13), and a spiral rib (2) is fixedly provided on the inner wall of the forming tube (1), and the inner reinforcing ribs (13) are connected obliquely by the spiral rib (2). The spiral rib (2) has a flow channel (21) inside, and a liquid outlet cavity (23) is opened at the lowest point of the spiral rib (2). An elastic sheet (31) is installed on the inner wall of the forming tube (1) on the outside of the liquid outlet cavity (23), and the elastic sheet (31) is deformed by the liquid to block the liquid outlet cavity (23).

2. The high-strength, corrosion-resistant SMC fiberglass molded tube according to claim 1, characterized in that, Multiple annular outer reinforcing ribs (12) are fixedly provided on the outer wall of the molded tube (1), and the outer reinforcing ribs (12) and the inner reinforcing ribs (13) are arranged opposite to each other.

3. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 1, characterized in that, One end of the spiral rib (2) is fixedly provided with an expansion port (22), and an inlet port (221) is provided on the expansion port (22), and the liquid enters the flow channel (21) through the inlet port (221).

4. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 3, characterized in that, Both ends of the forming tube (1) are provided with openings (11), and the liquid inside the forming tube (1) flows toward the expansion opening (22).

5. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 1, characterized in that, A fixing seat (3) is fixedly installed on the inner wall of the forming tube (1) on one side of the liquid outlet chamber (23), and the fixing seats (3) are all fixedly installed on the side facing the liquid flow.

6. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 5, characterized in that, A vertical elastic sheet (31) is fixedly installed on the fixed base (3), and the elastic sheet (31) deforms by being pushed by the liquid to cover the liquid outlet cavity (23).

7. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 6, characterized in that, A silicone element (33) is fixedly provided on the side of the elastic sheet (31) facing the liquid outlet cavity (23), and the silicone element (33) is adapted to the liquid outlet cavity (23).

8. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 7, characterized in that, A baffle plate (32) is fixedly provided on the other side of the elastic sheet (31), and the baffle plate (32) is thin-walled.

9. The high-strength, corrosion-resistant SMC fiberglass molded pipe according to claim 7, characterized in that, A pad (34) is fixedly installed on the fixed base (3) below the silicone part (33). The pad (34) has a right angle surface on one side facing the elastic sheet (31) and an arc angle surface on the other side.

Images