High-strength bimetal composite conveying straight pipe
The cleaning mechanism of the high-strength bimetallic composite conveying straight pipe solves the fluid blockage problem, realizes efficient fluid conveying and filtration, and improves the reliability and economy of the system.
Patent Information
- Application Number
- CN202520727174.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-17
AI Technical Summary
During transportation, fluids can easily adhere to the inner wall of pipes and the pores of filter plates, causing blockages, affecting transportation efficiency and increasing maintenance costs.
It adopts a high-strength bimetallic composite straight conveying pipe and uses a motor-driven cleaning mechanism, including scrapers and brushes, to clean the inner wall of the conveying pipe and the holes of the filter plate, maintaining the smoothness of the inside of the pipe and the efficient operation of the filtration system.
It effectively cleans the inner walls of pipes and filter plates, prevents blockages, improves conveying efficiency and filtration accuracy, and reduces operating costs and downtime.
Smart Images

Figure CN223924114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveying straight pipes, and in particular to a high-strength bimetallic composite conveying straight pipe. Background Technology
[0002] Straight pipelines typically refer to straight pipes used to transport fluids (such as water, oil, and gas). They provide a stable flow of fluids, ensuring the normal operation of the system. Compared to other transportation methods, pipeline transportation is generally less expensive and more efficient, and using pipelines can reduce the risk of leaks and contamination, especially when transporting hazardous or dangerous materials.
[0003] In the process of developing this application, the inventors discovered the following problems with the existing technology: During the transportation process, fluid can adhere to the inner wall of the pipe and the pores of the filter plate, which may lead to blockage after prolonged use. This blockage reduces the fluid flow channels, resulting in a decrease in overall flow rate and affecting transportation efficiency. Furthermore, due to fluid adhesion and blockage, the need for regular maintenance and cleaning increases, thereby increasing operating costs and downtime.
[0004] Therefore, those skilled in the art have provided a high-strength bimetallic composite straight pipe to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength bimetallic composite straight conveying pipe. This invention can clean the inner wall of the conveying pipe and the holes in the filter plate after the motor is started.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A high-strength bimetallic composite conveying straight pipe includes a conveying pipe and a cleaning mechanism. A fixing box is fixedly installed at the upper end of the conveying pipe, an installation box is fixedly installed at the middle position of the inner end of the conveying pipe, and filter plates are fixedly installed on both sides of the conveying pipe.
[0008] The cleaning mechanism includes a motor and a connecting column. The output end of the motor is rotatably equipped with a rotating column. A first bevel gear is fixedly sleeved on the lower end of the rotating column. Fixed frames are fixedly sleeved on both sides of the connecting column. Three fixed columns are threaded on both the front and rear sides of the two fixed frames. The multiple fixed columns are grouped into groups of three, for a total of four groups. A scraper is fixedly installed on one side of each group of fixed columns. Multiple brush bristles are fixedly installed on opposite sides of the two fixed frames. A second bevel gear is fixedly sleeved on the outer side of the connecting column near the middle position.
[0009] Furthermore, the conveying pipe includes a support layer, and a wear-resistant layer is provided at the inner end of the support layer.
[0010] Furthermore, the support layer is made of low-alloy steel, and the wear-resistant layer is made of high-chromium cast iron.
[0011] Furthermore, the support layer and the wear-resistant layer are bonded together by hot rolling composite bonding.
[0012] Furthermore, the motor is fixedly mounted at the top of the mounting box, and the connecting column is rotatably mounted at the end of the mounting box.
[0013] Furthermore, the rotating column passes through the conveying pipe and the mounting box, and the first bevel gear is rotatably disposed inside the mounting box.
[0014] Furthermore, the first bevel gear meshes with the second bevel gear, and the four scrapers contact the inner wall of the conveying pipe.
[0015] Furthermore, the bristles contact one side of each of the two filter plates.
[0016] This utility model has the following beneficial effects:
[0017] 1. This utility model proposes a high-strength bimetallic composite straight conveying pipe. The outermost support layer 101 of the conveying pipe is made of low-alloy steel, providing good structural strength and toughness, and can withstand high pressure and impact, ensuring stable operation in complex environments. The wear-resistant layer 102 is made of high-chromium cast iron, which significantly improves the wear resistance of the inner wall of the pipe, effectively resisting wear caused during the conveying process and extending the service life. The support layer 101 and the wear-resistant layer 102 are bonded by hot rolling composite bonding, which is an existing technology. The specific process is to stack high-chromium cast iron plates or casting billets with low-alloy steel plates, with the interface tightly attached, and welded and sealed around the perimeter. Vent holes are required, and vacuuming or filling with protective gas is performed to prevent interface oxidation. The pipe is rolled in a hot rolling mill through multiple passes. Under high temperature and high pressure conditions, the metal undergoes plastic deformation, and the interface atoms diffuse to form a metallurgical bond. The rolling pressure is usually ≥100MPa. After rolling, the cooling rate is controlled to ≤50℃ / h to eliminate residual stress and ensure the straightness and dimensional accuracy of the pipe.
[0018] 2. This utility model proposes a high-strength bimetallic composite conveying straight pipe. After the motor is started, the rotating column begins to rotate. The first bevel gear drives the second bevel gear, which in turn drives the connecting column to rotate. When the connecting column starts to rotate, the fixed frame also rotates. The scraper can effectively clean the inner wall of the conveying pipe, maintain the smoothness of the pipe interior, reduce the adhesion of materials to the wall surface, and thus improve the conveying efficiency. During the rotation of the fixed frame, the bristles quickly clean the filter holes of the filter plate, ensuring that the filtration system works efficiently, avoiding blockage, improving filtration accuracy, and ultimately improving the reliability of the overall conveying system. In addition, since the two sides of the mounting box are fixedly connected to the inner wall of the conveying pipe, and the upper and lower ends of the mounting box have space, the fluid can flow smoothly through the upper and lower sides of the mounting box, further optimizing the fluid conveying effect. Attached Figure Description
[0019] Figure 1 This is an overall isometric schematic diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the overall orthographic section of this utility model;
[0021] Figure 3 This is a schematic side sectional view of the present invention;
[0022] Figure 4 This is a schematic diagram of the internal structure of the conveying pipe of this utility model;
[0023] Figure 5 This is an isometric schematic diagram of the fixing box, mounting box, filter plate and cleaning mechanism of this utility model;
[0024] Figure 6 This is an isometric view of the mounting box, motor, connecting column, fixing frame, and brush bristles of this utility model.
[0025] Figure 7 This is an isometric schematic diagram of the cleaning mechanism of this utility model.
[0026] Legend:
[0027] 1. Conveying pipe; 2. Fixing box; 3. Mounting box; 4. Filter plate; 5. Cleaning mechanism; 101. Support layer; 102. Wear-resistant layer; 501. Motor; 502. First bevel gear; 503. Connecting column; 504. Fixing frame; 505. Fixing column; 506. Scraper; 507. Brush bristles; 508. Second bevel gear; 509. Rotating column. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Reference Figures 1-4 One embodiment provided by this utility model:
[0030] A high-strength bimetallic composite conveying straight pipe includes a conveying pipe 1 and a cleaning mechanism 5. A fixing box 2 is fixedly installed at the upper end of the conveying pipe 1, and an installation box 3 is fixedly installed at the middle position of the inner end of the conveying pipe 1. Filter plates 4 are fixedly installed on both sides of the conveying pipe 1. The conveying pipe 1 includes a support layer 101, and a wear-resistant layer 102 is provided at the inner end of the support layer 101. The support layer 101 is made of low alloy steel, and the wear-resistant layer 102 is made of high chromium cast iron. The support layer 101 and the wear-resistant layer 102 are bonded together by hot rolling composite bonding.
[0031] Specifically, the outermost support layer 101 of the conveying pipe 1 is made of low-alloy steel, providing good structural strength and toughness, and can withstand high pressure and impact, ensuring stable operation in complex environments. The wear-resistant layer 102 is made of high-chromium cast iron, which significantly improves the wear resistance of the inner wall of the pipe, effectively resisting wear caused during transportation and extending service life. The support layer 101 and the wear-resistant layer 102 are bonded by hot rolling composite bonding, which is an existing technology. The specific process involves stacking high-chromium cast iron plates or casting billets with low-alloy steel plates, ensuring tight interface contact, sealing by welding around the perimeter, and leaving vent holes. Vacuuming or filling with protective gas is also performed to prevent interface oxidation. The metal undergoes plastic deformation under high temperature and high pressure conditions through multiple rolling passes in a hot rolling mill, and the interface atoms diffuse to form a metallurgical bond. The rolling pressure is usually ≥100MPa. After rolling, the cooling rate is controlled to ≤50℃ / h to eliminate residual stress and ensure the straightness and dimensional accuracy of the pipe.
[0032] Reference Figures 5-7The cleaning mechanism 5 includes a motor 501 and a connecting column 503. A rotating column 509 is rotatably mounted on the output end of the motor 501. A first bevel gear 502 is fixedly sleeved on the lower end of the rotating column 509. Fixing frames 504 are fixedly sleeved on both sides of the connecting column 503. Three fixing columns 505 are threaded onto both the front and rear sides of the two fixing frames 504. The fixing columns 505 are arranged in groups of three, for a total of four groups. A scraper 506 is fixedly mounted on one side of each group of fixing columns 505. A scraper 506 is fixedly mounted on the opposite side of each of the two fixing frames 504. Multiple brush bristles 507, a second bevel gear 508 is fixedly sleeved on the outer side of the connecting post 503 near the middle position, a motor 501 is fixedly installed at the top of the fixed box 2, the connecting post 503 is rotatably installed at the inner end of the mounting box 3, a rotating post 509 passes through the conveying pipe 1 and the mounting box 3, a first bevel gear 502 is rotatably installed at the inner end of the mounting box 3, the first bevel gear 502 is meshed with the second bevel gear 508, four scrapers 506 are in contact with the inner wall of the conveying pipe 1, and multiple brush bristles 507 are in contact with the opposite side of the two filter plates 4.
[0033] Specifically, after starting the motor 501, the rotating column 509 begins to rotate. The first bevel gear 502 drives the second bevel gear 508, which in turn drives the connecting column 503 to rotate. When the connecting column 503 starts to rotate, the fixed frame 504 also rotates. The scraper 506 can effectively clean the inner wall of the conveying pipe 1, maintain the smoothness of the inside of the pipe, reduce the adhesion of materials on the wall, and thus improve the conveying efficiency. During the rotation of the fixed frame 504, the brush 507 quickly cleans the filter holes of the filter plate 4, ensuring that the filtration system works efficiently, avoiding blockage, improving the filtration accuracy, and ultimately improving the reliability of the overall conveying system. In addition, since the two sides of the mounting box 3 are fixedly connected to the inner wall of the conveying pipe 1, and the upper and lower ends of the mounting box 3 have space, the fluid can flow smoothly through the upper and lower sides of the mounting box 3, further optimizing the fluid conveying effect.
[0034] Working principle: The outermost support layer 101 of the conveying pipe 1 is made of low alloy steel, which provides good structural strength and toughness and can withstand high pressure and impact. The wear-resistant layer 102 is made of high chromium cast iron, which significantly improves the wear resistance of the inner wall of the pipe. The support layer 101 and the wear-resistant layer 102 are bonded by hot rolling composite bonding. This is an existing technology. The specific process is to stack high chromium cast iron plates or casting billets with low alloy steel plates, with the interface tightly attached and the four sides welded and sealed. Venting holes are required, and vacuuming or filling with protective gas is carried out to prevent interface oxidation. In the hot rolling mill, through multiple rolling passes, the metal undergoes plastic deformation under high temperature and high pressure conditions, and the interface atoms diffuse to form a metallurgical bond. The rolling pressure is usually ≥100MPa. After rolling, the cooling rate is controlled to ≤50℃ / h to eliminate residual stress and ensure the straightness and dimensional accuracy of the pipe.
[0035] Secondly, after starting the motor 501, the rotating column 509 begins to rotate. The first bevel gear 502 drives the second bevel gear 508, which in turn drives the connecting column 503 to rotate. When the connecting column 503 starts to rotate, the fixed frame 504 also rotates. The scraper 506 can effectively clean the inner wall of the conveying pipe 1, maintain the smoothness of the inside of the pipe, reduce the adhesion of materials on the wall, and thus improve the conveying efficiency. During the rotation of the fixed frame 504, the bristles 507 quickly clean the filter holes of the filter plate 4.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high strength bimetallic composite flowline comprising a flowline (1) and a cleaning mechanism (5), characterised in that: The upper end of the conveying pipe (1) is fixedly provided with a fixed box (2), the middle position of the inner end of the conveying pipe (1) is fixedly provided with a mounting box (3), and both sides of the conveying pipe (1) are fixedly provided with filter plates (4). The cleaning mechanism (5) comprises a motor (501) and a connecting column (503), the output end of the motor (501) is rotatably provided with a rotating column (509), the lower end of the rotating column (509) is fixedly sleeved with a first bevel gear (502), the both sides of the connecting column (503) are fixedly sleeved with fixed frames (504), the front and rear sides of the two fixed frames (504) are threadedly provided with three fixed columns (505), a plurality of fixed columns (505) are grouped into four groups, one side of each group of fixed columns (505) is fixedly provided with a scraper (506), the opposite sides of the two fixed frames (504) are fixedly provided with a plurality of bristles (507), and the outer side of the connecting column (503) is fixedly sleeved with a second bevel gear (508) at the middle position.
2. A high strength bimetallic composite transfer straight pipe according to claim 1, characterized in that: The conveying pipe (1) comprises a support layer (101), and the inner end of the support layer (101) is provided with a wear-resistant layer (102).
3. A high strength bimetallic composite transfer straight pipe according to claim 2, characterized in that: The support layer (101) is made of low alloy steel, and the wear-resistant layer (102) is made of high-chromium cast iron.
4. A high strength bimetallic composite transfer straight pipe according to claim 2, characterized in that: The support layer (101) and the wear-resistant layer (102) are bonded by hot rolling.
5. A high strength bimetallic composite transfer straight pipe according to claim 1, characterized in that: The motor (501) is fixedly arranged at the top end of the fixed box (2), and the connecting column (503) is rotatably arranged at the inner end of the mounting box (3).
6. A high strength bimetallic composite transfer straight pipe according to claim 1, characterized in that: The rotating column (509) penetrates the conveying pipe (1) and the mounting box (3), and the first bevel gear (502) is rotatably arranged at the inner end of the mounting box (3).
7. A high strength bimetallic composite transfer straight pipe according to claim 1, characterized in that: The first bevel gear (502) is meshed and connected with the second bevel gear (508), and the four scrapers (506) are in contact with the inner wall of the conveying pipe (1).
8. A high strength bimetallic composite transfer straight pipe according to claim 1, characterized in that: The plurality of bristles (507) are in contact with the opposite side of the two filter plates (4).