Anti-blocking pp air pipe
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]现有防堵式PP风管在使用时还存在以下问题:机械强度相对较低,与一些金属风管相比,PP风管的机械强度较低,在受到外力冲击或较大压力时,容易出现变形、破裂等问题,例如,在施工现场如果被重物撞击,或者在长期使用过程中承受了超过其承载能力的压力,可能会导致风管损坏,影响正常使用
1、本实用新型中,通过采用复合PP材质制作风管管体,其复合PP材质具体为加入玻璃纤维和碳纤维的PP材料,能够有效提高风管的抗拉伸、抗压缩和抗冲击性能,使其更加坚固耐用,此外,其风管结构外侧等角度固定连接有铝合金加固筋条,其均匀的设置于风管管体外壁,增强了风管的整体强度,此外其风管结构外侧设置有橡胶缓冲机构,整体PP风管在受到外力冲击或较大压力时,不容易出现变形、破裂等问题。
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Figure CN224622512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PP duct technology, specifically to an anti-clogging PP duct. Background Technology
[0002] Anti-clogging PP duct is a type of ventilation duct made of polypropylene (PP) material with anti-clogging function. PP material has excellent chemical corrosion resistance and can resist the erosion of various chemicals such as acids, alkalis, and salts. It is suitable for conveying corrosive gases and can maintain stable performance within a certain temperature range. It can generally withstand temperatures from -20℃ to about 100℃, meeting the usage requirements of most industrial environments.
[0003] Existing anti-clogging PP ducts still have the following problems when used: relatively low mechanical strength. Compared with some metal ducts, PP ducts have lower mechanical strength and are prone to deformation and cracking when subjected to external impact or high pressure. For example, if they are hit by heavy objects at the construction site, or subjected to pressure exceeding their bearing capacity during long-term use, the duct may be damaged, affecting normal use. Utility Model Content
[0004] (a) Technical problems to be solved.
[0005] To address the shortcomings of existing technologies, this utility model provides an anti-clogging PP duct, which solves the problems mentioned in the background technology.
[0006] (ii) Technical solution.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-clogging PP duct, comprising a duct body, the duct body comprising a composite PP duct body, an air inlet groove at the center of one end of the composite PP duct body, and an air outlet groove at the center of the other end of the composite PP duct body, the air inlet groove and the air outlet groove being connected and both having a smooth inner wall coating, the smooth inner wall coating being a polytetrafluoroethylene coating, and the inner diameter of the air outlet groove being smaller than the inner diameter of the air inlet groove.
[0008] As a further embodiment of this utility model: the composite PP duct body is made of PP material with added glass fiber and carbon fiber. An outer protective mechanism is provided on the outside of the duct body. The outer protective mechanism includes four first reinforcing ribs fixedly connected at equal angles at one end of the outer wall of the duct body. The outer protective mechanism also includes four second reinforcing ribs fixedly connected at equal angles at the other end of the outer wall of the duct body. The first reinforcing ribs and their corresponding second reinforcing ribs are connected by reinforcing blocks. Rubber buffer mechanisms are provided on the outside of the four first reinforcing ribs and the four second reinforcing ribs. The four reinforcing blocks are set at equal angles, and the four reinforcing blocks are fixedly connected to the outer wall of the composite PP duct body at opposite ends. The first reinforcing ribs, the second reinforcing ribs and the reinforcing blocks are all made of aluminum alloy.
[0009] As a further embodiment of this utility model: the rubber buffer mechanism includes a plurality of first buffer rubber rings equidistantly arranged on the outside of four first reinforcing ribs, and the rubber buffer mechanism also includes a plurality of second buffer rubber rings equidistantly arranged on the outside of four second reinforcing ribs. The inner sidewall of the first buffer rubber ring is provided with four first mating holes at equal angles, and a first rigid rubber column is fixedly connected in the first mating hole. The first rigid rubber column is fixedly connected to the first reinforcing rib on its corresponding side. The inner sidewall of the second buffer rubber ring is provided with four second mating holes at equal angles, and a second rigid rubber column is fixedly connected in the second mating hole. The second rigid rubber column is fixedly connected to the second reinforcing rib on its corresponding side.
[0010] As a further embodiment of this utility model: a first flange is fixedly connected to one end of the composite PP duct body at the opening of the air inlet slot, and a second flange is fixedly connected to the other end of the composite PP duct body at the opening of the air outlet slot.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the duct body is made of composite PP material, specifically PP material with added glass fiber and carbon fiber, which can effectively improve the tensile, compressive and impact resistance of the duct, making it more robust and durable. In addition, aluminum alloy reinforcing ribs are fixedly connected at equal angles on the outer side of the duct structure, which are evenly arranged on the outer wall of the duct body to enhance the overall strength of the duct. Furthermore, a rubber buffer mechanism is provided on the outer side of the duct structure, so that the overall PP duct is not prone to deformation or cracking when subjected to external impact or large pressure.
[0012] 2. In this utility model, the duct body adopts an optimized anti-clogging structure design. The inner wall of the duct body is provided with a smooth inner wall coating, which is a polytetrafluoroethylene coating. The duct body adopts a cavity transmission structure design, that is, the inner diameter of the air outlet groove of the duct body is smaller than the inner diameter of the air inlet groove. When the gas is transmitted from the air inlet groove to the air outlet groove, the flow rate is appropriately increased, which avoids the accumulation of impurities in the gas on the inner wall of the duct body due to the low flow rate, and can ensure the smooth flow of gas in the pipeline. Attached Figure Description
[0013] Figure 1 This is a perspective view of the entire utility model; Figure 2 This is a three-dimensional view of the main body of the air duct of this utility model; Figure 3 This is a three-dimensional cross-sectional view of the main body of the air duct of this utility model; Figure 4 This is a perspective view of the outer protective mechanism of this utility model.
[0014] In the diagram: 1. Main body of the duct; 2. Outer protective mechanism; 11. Composite PP duct body; 12. First flange; 13. Second flange; 14. Air outlet groove; 15. Air inlet groove; 21. First reinforcing rib; 22. First rigid rubber column; 23. First buffer rubber ring; 24. First mating hole; 25. Second reinforcing rib; 26. Second rigid rubber column; 27. Second buffer rubber ring; 28. Second mating hole; 29. Reinforcing block. Detailed Implementation
[0015] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] Please see Figures 1-4 In this embodiment of the present invention, an anti-clogging PP duct includes a duct body 1, which includes a composite PP duct body 11. An air inlet groove 15 is provided at the center of one end of the composite PP duct body 11, and an air outlet groove 14 is provided at the center of the other end. The air inlet groove 15 and the air outlet groove 14 are connected and both have a smooth inner wall coating, which is a polytetrafluoroethylene coating. The inner diameter of the air outlet groove 14 is smaller than that of the air inlet groove 15. The duct body adopts an optimized anti-clogging structure design. The inner wall of the duct body is coated with a smooth inner wall coating, which is a polytetrafluoroethylene coating. The duct body adopts a cavity transmission structure design, that is, the inner diameter of the air outlet groove 14 of the duct body is smaller than the inner diameter of the air inlet groove 15. When the gas is transmitted from the air inlet groove 15 to the air outlet groove 14, the flow rate is appropriately increased, which avoids the accumulation of impurities in the gas on the inner wall of the duct body due to the low flow rate, and can ensure the smooth flow of gas in the pipeline.
[0019] The composite PP duct body 11 is made of PP material with added glass fiber and carbon fiber. An outer protective mechanism 2 is provided on the outside of the duct body 1. The outer protective mechanism 2 includes four first reinforcing ribs 21 fixedly connected at equal angles to one end of the outer wall of the duct body 1, and four second reinforcing ribs 25 fixedly connected at equal angles to the other end of the outer wall of the duct body 1. The first reinforcing ribs 21 and their corresponding second reinforcing ribs 25 are connected by reinforcing blocks 29. Rubber buffer mechanisms are provided on the outside of the four first reinforcing ribs 21 and the four second reinforcing ribs 25. The four reinforcing blocks 29 are set at equal angles and fixed at opposite ends. The outer wall of the composite PP duct body 11 is connected to the first reinforcing rib 21, the second reinforcing rib 25, and the reinforcing block 29, all of which are made of aluminum alloy. The entire duct body is made of composite PP material, specifically PP material with added glass fiber and carbon fiber, which can effectively improve the tensile, compressive, and impact resistance of the duct, making it more robust and durable. In addition, aluminum alloy reinforcing ribs are fixedly connected at equal angles on the outer side of the duct structure, which are evenly distributed on the outer wall of the duct body to enhance the overall strength of the duct. Furthermore, a rubber buffer mechanism is provided on the outer side of the duct structure, so that the entire PP duct is not prone to deformation or cracking when subjected to external impact or large pressure.
[0020] The rubber buffer mechanism includes multiple first buffer rubber rings 23 equidistantly arranged on the outside of four first reinforcing ribs 21, and multiple second buffer rubber rings 27 equidistantly arranged on the outside of four second reinforcing ribs 25. The inner wall of the first buffer rubber ring 23 has four first mating holes 24 at equal angles. A first rigid rubber column 22 is fixedly connected in the first mating hole 24. The first rigid rubber column 22 is fixedly connected to the first reinforcing rib 21 on its corresponding side. The inner wall of the second buffer rubber ring 27 has four second mating holes 28 at equal angles. A second rigid rubber column 26 is fixedly connected in the second mating hole 28. The second rigid rubber column 26 is fixedly connected to the second reinforcing rib 25 on its corresponding side. When the PP duct is subjected to external impact or large pressure, the buffer rubber rings and rigid rubber columns on its outer side can play a buffering role, reducing the impact damage to the duct body 1.
[0021] One end of the composite PP duct body 11 is fixedly connected to a first flange 12 at the opening of the air inlet slot 15, and the other end of the composite PP duct body 11 is fixedly connected to a second flange 13 at the opening of the air outlet slot 14. The entire PP duct can be connected to the wind power transmission pipeline through the flanges on both sides.
[0022] The working principle of this utility model is as follows: The integral PP air duct can be connected to the wind power transmission pipeline through the flanges on both sides. After connection, the gas can be transported and guided through the air inlet groove 15 and air outlet groove 14 in the composite PP air duct body 11. Due to the optimized anti-clogging structure design of the air duct body, the inner wall of the air duct body is provided with a smooth inner wall coating, which is a polytetrafluoroethylene coating. The air duct body adopts a cavity transmission structure design, that is, the inner diameter of the air outlet groove 14 of the air duct body is smaller than the inner diameter of the air inlet groove 15. When the gas is transported from the air inlet groove 15 to the air outlet groove 14, the flow rate is appropriately increased, avoiding the accumulation of impurities in the gas on the inner wall of the air duct body due to the low flow rate, which can ensure the smooth flow of gas in the pipeline.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A clog-resistant PP duct, comprising a duct body (1); Its features are: The main body of the air duct (1) includes a composite PP air duct body (11), with an air inlet groove (15) at the center of one end of the composite PP air duct body (11) and an air outlet groove (14) at the center of the other end of the composite PP air duct body (11). The air inlet groove (15) and the air outlet groove (14) are connected and both have a smooth inner wall coating. The inner diameter of the air outlet groove (14) is smaller than the inner diameter of the air inlet groove (15). The outer side of the duct body (1) is provided with an outer protective mechanism (2). The outer protective mechanism (2) includes four first reinforcing ribs (21) that are fixedly connected at equal angles at one end of the outer side wall of the duct body (1). The outer protective mechanism (2) also includes four second reinforcing ribs (25) that are fixedly connected at equal angles at the other end of the outer side wall of the duct body (1). The first reinforcing bar (21) is connected to the second reinforcing bar (25) on its corresponding side by a reinforcing block (29), and a rubber buffer mechanism is provided on the outside of the four first reinforcing bars (21) and the four second reinforcing bars (25).
2. The anti-clogging PP duct according to claim 1, characterized in that: The four reinforcing blocks (29) are arranged at equal angles, and the four reinforcing blocks (29) are fixedly connected to the outer wall of the composite PP air duct body (11) at one end facing each other.
3. The anti-clogging PP duct according to claim 1, characterized in that: The rubber buffer mechanism includes a plurality of first buffer rubber rings (23) equidistantly arranged on the outside of the four first reinforcing ribs (21), and the rubber buffer mechanism also includes a plurality of second buffer rubber rings (27) equidistantly arranged on the outside of the four second reinforcing ribs (25).
4. The anti-clogging PP duct according to claim 3, characterized in that: The inner wall of the first buffer rubber ring (23) is provided with four first mating holes (24) at equal angles. A first hard rubber column (22) is fixedly connected in the first mating hole (24). The first hard rubber column (22) is fixedly connected to the first reinforcing rib (21) on its corresponding side.
5. The anti-clogging PP duct according to claim 3, characterized in that: The inner wall of the second buffer rubber ring (27) is provided with four second mating holes (28) at equal angles. A second hard rubber column (26) is fixedly connected in the second mating hole (28). The second hard rubber column (26) is fixedly connected to the second reinforcing rib (25) on its corresponding side.
6. The anti-clogging PP duct according to claim 1, characterized in that: The composite PP duct body (11) is made of PP material with added glass fiber and carbon fiber, the inner wall smooth coating is a polytetrafluoroethylene coating, and the first reinforcing rib (21), the second reinforcing rib (25) and the reinforcing block (29) are all made of aluminum alloy.
7. The anti-clogging PP duct according to claim 1, characterized in that: One end of the composite PP duct body (11) is fixedly connected to a first flange (12) at the opening of the air inlet groove (15), and the other end of the composite PP duct body (11) is fixedly connected to a second flange (13) at the opening of the air outlet groove (14).