High weather resistance stainless steel air pipe

Abstract

The utility model discloses a kind of high weather resistance stainless steel air pipe, it relates to ventilation duct field, and its technical solution main point is including pipe body, the inside of the pipe body is equipped with lining pipe, the pipe body with the screw fixing between the lining pipe, the lining pipe is connected with the sealing rubber plate between pipe body, sealing rubber plate is fixed with baffle away from the joint end, baffle is completely covered in lining pipe end face, the pipe body both ends are fixed with flange plate, contact is equipped with reinforcing plate between two flange plates, reinforcing plate is equipped with several in each side of pipe body, reaches the effect of ventilation duct installation using double-layer structure, reduces the cold shrinkage thermal expansion range of lining pipe, improves the weather resistance of pipe body whole.

Description

Technical Field

[0001] This utility model relates to the technical field of ventilation ducts, specifically a high weather-resistant stainless steel ventilation duct. Background Technology

[0002] Stainless steel ducts are hollow pipes used for ventilation. They come in round and rectangular shapes, and various shapes, specifications, and sheet metals can be produced to meet different site requirements. Due to their excellent corrosion resistance, heat resistance, and high strength, stainless steel ducts are aesthetically pleasing, have smooth inner walls, low resistance, good airtightness, and high pressure resistance. They are suitable for very complex exhaust systems and are mainly used in various high-airtightness process exhaust systems, solvent exhaust systems, organic exhaust systems, waste gas exhaust systems, outdoor sections of general exhaust systems, humid heat exhaust systems, and smoke and dust removal systems. Furthermore, stainless steel ventilation ducts are easy to transport and can be installed in various on-site environments. Therefore, stainless steel ventilation ducts are widely used in various manufacturing fields.

[0003] The existing technology has the following shortcomings: The existing stainless steel ventilation ducts installed inside office buildings are used as ventilation paths for air conditioning in winter and summer or when there is a need for ventilation; however, when delivering warm air in the cold winter or cold air in the hot summer, the ventilation duct is prone to dents or deformation due to the instantaneous temperature difference, which can cause the ventilation duct to warp and deform, shift, or even gaps at the joints, resulting in damage and air leakage, affecting its use. Utility Model Content

[0004] The purpose of this invention is to provide a high weather-resistant stainless steel ventilation duct that adopts a double-layer structure, reduces the expansion and contraction of the inner lining tube due to cold and heat, and improves the overall weather resistance of the duct body.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The tube includes a pipe body with an inner liner inside. The pipe body and the inner liner are fixed together with screws. A sealing rubber plate is snapped between the inner liner and the pipe body. A baffle is fixed to the sealing rubber plate away from the snapping end. The baffle completely covers the end face of the inner liner. Flange plates are fixed to both ends of the pipe body. A reinforcing plate is provided between the two flange plates. Several reinforcing plates are provided on each side of the pipe body.

[0007] Furthermore, the sealing plate has several slots inside, evenly distributed inside the sealing plate, and a first spring is fixed inside each slot.

[0008] By adopting the above technical solution, the sealing rubber plate is used as a buffer medium to reduce the thermal expansion of the inner liner tube due to temperature rise. The sealing rubber plate is fixed with a baffle on the side, which is located between the two spliced ​​inner liner tubes, improving the sealing performance after the tube body is installed. At the same time, multiple first springs are set to further improve the above effects.

[0009] Furthermore, the inner lining tube is fixed with a first through hole on the outside. The first through hole has several holes. Corresponding to the position of the first through hole, a second through hole is provided on the side of the tube body. A sleeve plate is provided at the top of the first through hole. A stud is inserted inside the second through hole. The stud passes through the second through hole, the sleeve plate and the first through hole in sequence and then protrudes into the inner lining plate. A nut is threaded to the protruding end. The end of the stud away from the nut is fixed to the bottom of the reinforcing plate.

[0010] Using the above technical solution, the inner liner tube is elastically connected to the tube body through studs and nuts. When the temperature and pressure inside the inner liner tube increase, the inner wall of the inner liner tube expands, resisting the second spring. The second spring is compressed, absorbing the energy of the expansion. Combined with the aforementioned sealing plate, this further reduces the thermal expansion of the inner liner tube. At the same time, when the temperature decreases, due to cold contraction, the inner liner plate contracts inward, pulling the second spring. The second spring absorbs the contraction of the inner liner plate, thus reducing the extent of cold contraction of the inner liner tube, thereby improving the overall weather resistance of the tube body.

[0011] Furthermore, a second spring is fixed to the end of the sleeve plate facing the first through hole, and the end of the second spring away from the sleeve plate is fixed to the side of the inner liner plate.

[0012] Furthermore, the inner wall of the inner liner tube is coated with a high-temperature resistant coating layer.

[0013] By adopting the above technical solution, the damage of high temperature to the inner lining tube and the thermal expansion range can be effectively reduced.

[0014] In summary, the beneficial technical effects of this utility model are as follows:

[0015] 1. A sealing rubber sheet is used as a buffer to reduce the thermal expansion of the inner liner tube due to temperature rise. A baffle is fixed on the side of the sealing rubber sheet and is located between the two spliced ​​inner liner tubes, which improves the sealing performance after the tube body is installed. At the same time, multiple first springs are set to further improve the above effects.

[0016] 2. A stud nut is used, and the inner liner is elastically connected to the tube body through the stud nut. When the temperature and pressure inside the inner liner increase, the inner wall of the inner liner expands, resisting the second spring. The second spring is compressed, absorbing the energy of the expansion. Combined with the aforementioned sealing plate, this further reduces the thermal expansion of the inner liner. At the same time, when the temperature decreases, due to cold contraction, the inner liner contracts inward, which pulls the second spring. The second spring absorbs the contraction of the inner liner, thus reducing the extent of cold contraction of the inner liner, thereby improving the overall weather resistance of the tube body.

[0017] 3. A high-temperature resistant coating is used to effectively reduce the damage of high temperature to the inner liner and reduce the thermal expansion range. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a structural schematic diagram of a high weather-resistant stainless steel air duct provided in this embodiment;

[0020] Figure 2 This is an exploded schematic diagram of a high weather-resistant stainless steel air duct provided in this embodiment;

[0021] Figure 3 This embodiment provides a high weather-resistant stainless steel air duct. Figure 1 A cross-sectional view.

[0022] In the diagram, 1. Pipe body; 2. Inner liner; 3. Sealing plate; 4. Baffle; 5. Flange plate; 6. Reinforcing plate; 7. Groove; 8. First spring; 9. First through hole; 10. Second through hole; 11. Sleeve plate; 12. Stud; 13. Nut; 14. Second spring. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] 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.

[0025] Please see Figure 1-3The present invention provides a technical solution comprising: a pipe body 1, wherein an inner liner 2 is provided inside the pipe body 1, the pipe body 1 and the inner liner 2 are fixed together by screws, a sealing rubber plate 3 is snapped between the inner liner 2 and the pipe body 1, a baffle 4 is fixed to the sealing rubber plate 3 away from the snapping end, the baffle 4 completely covers the end face of the inner liner 2, flange plates 5 are fixed to both ends of the pipe body 1, a reinforcing plate 6 is provided between the two flange plates 5, and several reinforcing plates 6 are provided on each side of the pipe body 1.

[0026] The pipe bodies 1 are assembled and fixed with screws using flange plates 5.

[0027] The sealing plate 3 has a cavity 7 inside, and there are several cavities 7 evenly distributed inside the sealing plate 3. A first spring 8 is fixed inside each cavity 7.

[0028] The sealing plate 3 is in contact with the inner liner tube 2 and the tube body 1. After the internal temperature of the inner liner tube 2 rises, the expansion of the inner liner tube 2 can contact the sealing plate 3, avoiding the inner liner tube 2 directly contacting the inner wall of the tube body 1. The sealing plate 3 acts as a buffer medium, reducing the thermal expansion of the inner liner tube 2 due to the temperature rise. In addition, a baffle 4 is fixed on the side of the sealing plate 3. The baffle 4 is located between the two spliced ​​inner liner tubes 2, which improves the sealing performance of the tube body 1 after installation.

[0029] The inner liner tube 2 is fixed with a first through hole 9 on the outside. The first through hole 9 has several holes. Corresponding to the position of the first through hole 9, a second through hole 10 is provided on the side of the tube body 1. A sleeve plate 11 is provided at the top of the first through hole 9. A stud 12 is inserted inside the second through hole 10. The stud 12 passes through the second through hole 10, the sleeve plate 11 and the first through hole 9 in sequence and then passes through the inner liner plate. The end of the stud 12 is threadedly connected to a nut 13. The end of the stud 12 away from the nut 13 is fixed to the bottom of the reinforcing plate 6.

[0030] A second spring 14 is fixed to the end of the sleeve 11 facing the first through hole 9, and the end of the second spring 14 away from the sleeve 11 is fixed to the side of the inner liner plate.

[0031] The inner liner tube 2 is elastically connected to the tube body 1 via studs 12 and nuts 13. When the internal temperature and pressure of the inner liner tube 2 increase, the inner wall of the inner liner tube 2 expands, resisting the second spring 14. The second spring 14 is compressed, absorbing the energy of the expansion. Combined with the aforementioned sealing plate 3, this further reduces the thermal expansion of the inner liner tube 2. At the same time, when the temperature decreases, due to cold contraction, the inner liner plate shrinks inward, pulling the second spring 14. The second spring 14 absorbs the shrinkage of the inner liner plate, thus reducing the extent of cold contraction of the inner liner tube 2, thereby improving the overall weather resistance of the tube body 1.

[0032] Meanwhile, a high-temperature resistant coating is applied to the inner wall of the inner liner tube 2. Specifically, the high-temperature resistant coating is a polyimide coating, which effectively reduces the damage of high temperature to the inner liner tube 2 and reduces the thermal expansion range.

[0033] The working principle of this utility model is as follows: The duct adopts a double-layer structure, consisting of an outer duct body 1 and an inner liner 2. The duct body 1 and the inner liner 2 are connected by a stud 12, nut 13, and a second spring 14. When the temperature and pressure inside the inner liner 2 increase, the inner wall of the inner liner 2 expands and comes into contact with the second spring 14. The second spring 14 is compressed, absorbing the energy of the expansion. Combined with the aforementioned sealing rubber plate 3, this further reduces the thermal expansion of the inner liner 2. At the same time, when the temperature decreases, due to the occurrence of cold contraction, the inner liner plate contracts inward, which pulls the second spring 14. The second spring 14 absorbs the contraction of the inner liner plate, thereby reducing the extent of cold contraction of the inner liner 2 and improving the overall weather resistance of the duct body 1.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A high weather-resistant stainless steel air duct, characterized in that, The tube includes a pipe body (1), inside which is provided an inner liner (2). The pipe body (1) and the inner liner (2) are fixed together by screws. A sealing plate (3) is snapped between the inner liner (2) and the pipe body (1). A baffle (4) is fixed away from the snapping end of the sealing plate (3). The baffle (4) completely covers the end face of the inner liner (2). Flange plates (5) are fixed at both ends of the pipe body (1). A reinforcing plate (6) is provided between the two flange plates (5). Several reinforcing plates (6) are provided on each side of the pipe body (1).

2. The high weather-resistant stainless steel duct according to claim 1, characterized in that: The sealing plate (3) has a cavity (7) inside. There are several cavities (7) evenly distributed inside the sealing plate (3). A first spring (8) is fixed inside each cavity (7).

3. The high weather-resistant stainless steel duct according to claim 1, characterized in that: The inner lining tube (2) is fixed with a first through hole (9) on the outside. The first through hole (9) has several holes. Corresponding to the position of the first through hole (9), a second through hole (10) is provided on the side of the tube body (1). A sleeve plate (11) is provided at the top of the first through hole (9). A stud (12) is inserted inside the second through hole (10). The stud (12) passes through the second through hole (10), the sleeve plate (11) and the first through hole (9) in sequence and then passes through the inner lining plate. A nut (13) is threaded to the end of the stud (12). The end of the stud (12) away from the nut (13) is fixed to the bottom of the reinforcing plate (6).

4. The high weather-resistant stainless steel duct according to claim 3, characterized in that: The end of the sleeve (11) facing the first through hole (9) is fixed with a second spring (14), and the end of the second spring (14) away from the sleeve (11) is fixed to the side of the inner liner.

5. The high weather-resistant stainless steel duct according to claim 1, characterized in that: The inner wall of the liner tube (2) is coated with a high-temperature resistant coating layer.

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