Ventilation pipe fitting with Teflon coating

Abstract

The utility model relates to a ventilation pipe fitting with a Teflon coating, which belongs to the technical field of ventilation pipe fittings and comprises a ventilation pipe body, mounting plates are fixed on the front and the back of the ventilation pipe body, and an erosion-resistant component is mounted between the inner side and the outer side of the ventilation pipe body. The erosion-resistant assembly comprises a waterproof layer, two epoxy resin layers, a wear-resistant layer and a hydrophobic layer, wherein the inner side of the ventilation pipeline body is coated with the waterproof layer, the two epoxy resin layers are bonded to the inner side of the waterproof layer and the outer side of the ventilation pipeline body respectively, the wear-resistant layer is fixed to the outer side of the epoxy resin layer, and the hydrophobic layer is fixed to the outer side of the wear-resistant layer. The anti-static layer is fixed to the inner side of the epoxy resin layer on the inner side, the supporting pipe is fixed to the inner side of the anti-static layer, and the inner side of the supporting pipe is coated with the Teflon coating body. According to the ventilation pipe fitting with the Teflon coating, the overall stability and the external factor erosion resistance of the ventilation pipe fitting can be greatly improved, and therefore the ventilation pipe fitting can be stably used for a long time.

Description

Technical Field

[0001] This application relates to the field of ventilation duct technology, specifically a ventilation duct with a Teflon coating. Background Technology

[0002] Ventilation ducts are hollow pipes used for ventilation. They are mostly round or square and are connected to other equipment and pipelines to ensure that air can be effectively transported and distributed. They are used in various buildings and industrial facilities.

[0003] According to Chinese Patent Publication No. CN212203489U, a corrosion-resistant ventilation duct for civil defense is disclosed, comprising a ventilation duct with two identical pipe bodies. A first fixing plate is welded to one side of each pipe body, and an integrated clamping block is formed on the first fixing plate. A second fixing plate is welded to the other end of each pipe body, and a groove is formed on the second fixing plate. An integrated first fixing plate and a second fixing plate are formed at both ends of each pipe body. Before installation, the first fixing plate and the second fixing plate can be used to limit and clamp the two pipe bodies, ensuring the stability between the two pipe bodies and improving installation efficiency. A clamping frame is installed between the two pipe bodies on the first fixing plate and the second fixing plate, and a rubber pad is placed on the inner side of the clamping frame. The clamping action of the clamping frame ensures the sealing of the connection, prevents leakage in the pipe, and improves the sealing performance of the pipe.

[0004] This patent has certain shortcomings in actual use. Since the main body of the pipe in this patent only adopts the traditional metal pipe solution, and there are humid or corrosive gases during the exhaust process, the inner wall is prone to corrosion under continuous ventilation, which shortens the actual service life and affects the durability of the pipe. In this regard, this application provides a ventilation pipe fitting with Teflon coating to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a ventilation duct fitting with a Teflon coating, which greatly enhances the overall stability of the ventilation duct and its resistance to external corrosion, enabling it to be used stably for a long time. This solves the problem that existing ventilation ducts are prone to corrosion of the inner wall when continuously ventilating in humid environments, which shortens their actual service life and affects the normal use of the duct.

[0006] To achieve the above objectives, this application provides the following technical solution: a ventilation duct fitting with a Teflon coating, comprising a ventilation duct body, wherein mounting plates are fixed on both the front and back sides of the ventilation duct body, and a corrosion-resistant component is installed between the inner and outer sides of the ventilation duct body;

[0007] The corrosion-resistant component includes a waterproof layer coated on the inner side of the ventilation duct body, two epoxy resin layers respectively bonded to the inner side of the waterproof layer and the outer side of the ventilation duct body, a wear-resistant layer fixed to the outer side of the outer epoxy resin layer, a hydrophobic layer fixed to the outer side of the wear-resistant layer, an antistatic layer fixed to the inner side of the inner epoxy resin layer, a support tube fixed to the inner side of the antistatic layer, a Teflon-coated body coated on the inner side of the support tube, and two connecting discs respectively fixed to the front and back of the support tube.

[0008] By adopting the above technical solutions, the overall stability of the ventilation duct and its ability to resist external erosion can be greatly enhanced, thus enabling it to be used stably for a long time.

[0009] Furthermore, the corrosion-resistant component also includes several mating holes formed between the front sides of the connecting plate and the corresponding mounting plate, two mounting grooves formed on opposite sides of the two connecting plates, and a sealing ring bonded to the inner side of the mounting groove.

[0010] By adopting the above technical solution, installation and sealing can be facilitated.

[0011] Furthermore, the two connecting plates are located on opposite sides of the two mounting plates, and the opposite sides of the two connecting plates are fixedly connected to the opposite sides of the two mounting plates.

[0012] By adopting the above technical solution, the connecting plate can be connected and fixed to the corresponding installation plate, which facilitates installation.

[0013] Furthermore, the mounting groove is annularly formed on the side of the connecting plate away from the main body of the ventilation duct, and the thickness of the sealing ring is greater than the depth of the mounting groove.

[0014] By adopting the above technical solution, after the two connecting discs and the mounting disc are connected and fixed, the sealing ring can fill the space between them well.

[0015] Furthermore, the waterproof layer is a polyurea waterproof coating layer, and the wear-resistant layer is a polyurethane wear-resistant paint.

[0016] By adopting the above technical solution, a good waterproof effect can be achieved, thus providing good protection for the inner side of the ventilation duct body. The wear-resistant layer has good wear resistance and weather resistance, which can effectively protect the outer side of the ventilation duct body.

[0017] Furthermore, the hydrophobic layer is an aerogel hydrophobic coating, and the antistatic layer is a graphene epoxy anticorrosive coating.

[0018] By adopting the above technical solution, a tight protective film can be formed on the surface of the object to prevent moisture erosion. It also has good durability and environmental protection. This can achieve a waterproof and hydrophobic effect on the outside of the ventilation duct body. The graphene epoxy anti-corrosion coating has high anti-corrosion capability, and due to the graphene particles contained in the coating, it increases conductivity to better deal with the risk of electrostatic interference.

[0019] Furthermore, the support tube is made of stainless steel, and both ends of the support tube are open.

[0020] By adopting the above technical solution, a good internal support function can be achieved.

[0021] Furthermore, the inner diameter of the connecting plate is equal to the inner diameter of the support tube, and the two ends of the support tube are located inside the two mounting plates respectively.

[0022] By adopting the above technical solution, it is easier for internal gas to pass through normally.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This ventilation duct with a Teflon coating, through the combined use of the mounting plate on the outside of the ventilation duct body and the corrosion-resistant components, can greatly enhance the overall stability of the ventilation duct and its ability to resist external corrosion, thus enabling it to be used stably for a long time. At the same time, it can also increase the overall actual strength and wear resistance, making the ventilation duct less susceptible to damage from external factors, and keeping the ventilation efficiency stable and normal, thereby effectively improving the practicality and actual use effect of the ventilation duct. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 For the structure of this application Figure 1 A schematic diagram of the right-side cross-section;

[0027] Figure 3 For the structure of this application Figure 2 A three-dimensional schematic diagram of the central support tube connection structure.

[0028] In the diagram: 1. Main body of ventilation duct; 2. Mounting plate; 300. Corrosion-resistant component; 301. Waterproof layer; 302. Epoxy resin layer; 303. Wear-resistant layer; 304. Hydrophobic layer; 305. Antistatic layer; 306. Support pipe; 307. Teflon-coated main body; 308. Connecting plate; 309. Butt hole; 310. Mounting groove; 311. Sealing ring. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Please see Figures 1 to 3 This application provides a technical solution: a ventilation duct fitting with a Teflon coating, including a ventilation duct body 1, mounting plates 2 fixed on both the front and back of the ventilation duct body 1, and a corrosion-resistant component 300 installed between the inner and outer sides of the ventilation duct body 1; through the cooperative use of the mounting plate 2 on the outer side of the ventilation duct body 1 and the corrosion-resistant component 300, the overall stability of the ventilation duct and its ability to resist external corrosion can be greatly enhanced, enabling it to be used stably for a long time. At the same time, it can also increase the overall actual strength and wear resistance, making the ventilation duct fitting less susceptible to damage from external factors, and maintaining a stable and normal ventilation efficiency, thereby effectively improving the practicality and actual use effect of the ventilation duct fitting.

[0031] In this embodiment, the corrosion-resistant component 300 is a structure used to provide corrosion-resistant protection.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the corrosion-resistant component 300 includes a waterproof layer 301 coated on the inner side of the ventilation duct body 1, two epoxy resin layers 302 respectively bonded to the inner side of the waterproof layer 301 and the outer side of the ventilation duct body 1, a wear-resistant layer 303 fixed to the outer side of the outer epoxy resin layer 302, a hydrophobic layer 304 fixed to the outer side of the wear-resistant layer 303, an antistatic layer 305 fixed to the inner side of the inner epoxy resin layer 302, a support tube 306 fixed to the inner side of the antistatic layer 305, a Teflon-coated body 307 coated on the inner side of the support tube 306, and two connecting plates 308 respectively fixed to the front and back of the support tube 306; the corrosion-resistant component 300 also includes a plurality of mating holes 309 opened between the front of the connecting plate 308 and the corresponding mounting plate 2, two mounting grooves 310 respectively opened on opposite sides of the two connecting plates 308, and a sealing ring 311 bonded to the inner side of the mounting groove 310.

[0033] It should be noted that the two connecting plates 308 are located on opposite sides of the two mounting plates 2. The opposite sides of the two connecting plates 308 are fixedly connected to the opposite sides of the two mounting plates 2, so that the connecting plates 308 can be connected and fixed to the corresponding mounting plates 2, which facilitates installation. The mating holes 309 allow bolts to pass through, and then the connection and fixation are made by nuts, which is the existing pipe fitting connection method.

[0034] In addition, the mounting groove 310 is ring-shaped and located on the side of the connecting plate 308 away from the ventilation duct body 1. The thickness of the sealing ring 311 is greater than the depth of the mounting groove 310, so that after the two connecting plates 308 and the mounting plate 2 are connected and fixed, the sealing ring 311 can fill the space between them well. The waterproof layer 301 is a polyurea waterproof coating layer, which has a good waterproof effect, thus providing good protection for the inner side of the ventilation duct body 1.

[0035] Meanwhile, the epoxy resin layer 302 acts as an adhesive, enhancing the connection strength and stability between structures. The epoxy resin filler is a composite material composed of epoxy resin, curing agent, and filler. It possesses excellent wear resistance, friction resistance, and compressive strength, enabling it to withstand significant loads. It also exhibits excellent corrosion resistance and chemical resistance, allowing for use in harsh environments such as acids and alkalis. The wear-resistant layer 303 is a polyurethane wear-resistant paint, a high-performance coating with excellent corrosion resistance, wear resistance, and chemical resistance. The polyurethane paint coating has high hardness, is abrasion-resistant, and not easily scratched. It exhibits excellent chemical corrosion resistance, superior acid and alkali resistance, and excellent UV and oxidation resistance, providing good wear and weather resistance. This effectively protects the outer side of the ventilation duct body 1. The hydrophobic layer 304 is an aerogel hydrophobic coating that forms a tight protective film on the surface of the object, preventing moisture erosion. It also possesses good durability and environmental friendliness, thus providing a waterproof and hydrophobic effect to the outer side of the ventilation duct body 1.

[0036] In addition, the antistatic layer 305 is a graphene epoxy anti-corrosion coating. Graphene anti-corrosion coating uses graphene as the main component and has excellent anti-corrosion performance. It can significantly improve the corrosion resistance and chemical resistance of objects. Almost all the materials used in graphene anti-corrosion coating are natural organic materials, without any organic substances that are harmful to the environment. Therefore, it is considered an environmentally friendly coating. The unique structure of graphene anti-corrosion coating makes it more wear-resistant and can effectively protect the surface of the coated object from damage. It has a high anti-corrosion capability. Moreover, due to the graphene particles contained in the coating, the conductivity is increased to better deal with the risk of electrostatic interference.

[0037] It should also be noted that the support tube 306 is a stainless steel tube. Regular stainless steel or 316L grade stainless steel can be selected as a replacement according to actual needs. Both ends of the support tube 306 are open. The inner diameter of the connecting plate 308 is equal to the inner diameter of the support tube 306. The two ends of the support tube 306 are located inside the two mounting plates 2, which can play a good role in inner support.

[0038] The working principle of the above embodiments is as follows:

[0039] When in use, the ventilation duct fittings provide excellent protection for the outer surface of the ventilation duct body 1 thanks to the wear-resistant outer layer 303. The hydrophobic layer 304 prevents dust and water droplets from adhering to the surface, making cleaning easier. The inner Teflon coating body 307 provides excellent high-temperature resistance, wear resistance, and corrosion resistance, preventing damage from humid or corrosive gases. The antistatic layer 305 reduces the risk of electrostatic interference, and the waterproof layer 301 further prevents humid gases from damaging the ventilation duct body 1, thus enabling stable gas ventilation and transportation for extended periods.

[0040] Compared with existing technologies, this ventilation duct with Teflon coating, through the cooperation between the mounting plate 2 on the outside of the ventilation duct body 1 and the corrosion-resistant component 300, can greatly enhance the overall stability of the ventilation duct and its ability to resist external corrosion, thus enabling it to be used stably for a long time. At the same time, it can also increase the overall actual strength and wear resistance, making the ventilation duct less susceptible to damage from external factors, and maintaining a stable and normal ventilation efficiency. This effectively improves the practicality and actual use effect of the ventilation duct, and solves the problem that existing ventilation ducts are prone to corrosion of the inner wall when continuously ventilating in humid environments, which leads to a shortened service life and affects the normal use of the duct.

Claims

1. A ventilation duct fitting with a Teflon coating, comprising a ventilation duct body (1), characterized in that: Mounting plates (2) are fixed on both the front and back of the ventilation duct body (1), and corrosion-resistant components (300) are installed between the inner and outer sides of the ventilation duct body (1). The corrosion-resistant component (300) includes a waterproof layer (301) coated on the inside of the ventilation duct body (1), two epoxy resin layers (302) respectively bonded to the inside of the waterproof layer (301) and the outside of the ventilation duct body (1), a wear-resistant layer (303) fixed to the outside of the outer epoxy resin layer (302), a hydrophobic layer (304) fixed to the outside of the wear-resistant layer (303), an antistatic layer (305) fixed to the inside of the inner epoxy resin layer (302), a support tube (306) fixed to the inside of the antistatic layer (305), a Teflon coating body (307) coated on the inside of the support tube (306), and two connecting plates (308) respectively fixed to the front and back of the support tube (306).

2. A ventilation duct fitting with a Teflon coating according to claim 1, characterized in that: The corrosion-resistant component (300) also includes a plurality of mating holes (309) formed between the front of the connecting plate (308) and the corresponding mounting plate (2), two mounting grooves (310) formed on opposite sides of the two connecting plates (308), and a sealing ring (311) bonded to the inside of the mounting groove (310).

3. A ventilation pipe fitting with a Teflon coating according to claim 1, characterized in that: The two connecting discs (308) are located on opposite sides of the two mounting discs (2), and the opposite sides of the two connecting discs (308) are fixedly connected to the opposite sides of the two mounting discs (2).

4. A ventilation duct fitting with a Teflon coating according to claim 2, characterized in that: The mounting groove (310) is annularly formed on the side of the connecting plate (308) away from the ventilation duct body (1), and the thickness of the sealing ring (311) is greater than the depth of the mounting groove (310).

5. A ventilation pipe fitting with a Teflon coating according to claim 1, characterized in that: The waterproof layer (301) is a polyurea waterproof coating layer, and the wear-resistant layer (303) is a polyurethane wear-resistant paint.

6. A ventilation duct fitting with a Teflon coating according to claim 1, characterized in that: The hydrophobic layer (304) is an aerogel hydrophobic coating, and the antistatic layer (305) is a graphene epoxy anticorrosive coating.

7. A ventilation pipe fitting with a Teflon coating according to claim 1, characterized in that: The support tube (306) is a stainless steel tube, and both ends of the support tube (306) are open.

8. A ventilation pipe fitting with a Teflon coating according to claim 1, characterized in that: The inner diameter of the connecting plate (308) is equal to the inner diameter of the support tube (306), and the two ends of the support tube (306) are located inside the two mounting plates (2).

Images