Flange with multiple seal structure

Abstract

The utility model relates to the field of flange plate, concretely relates to a flange plate with multiple sealing structure, including connecting disc no.

Description

Technical Field

[0001] This utility model relates to the field of flanges, specifically to a flange with a multi-seal structure. Background Technology

[0002] A Chinese patent discloses a highly corrosion-resistant multi-seal flange structure (application number: CN201921032759.2), comprising a plug-in flange and a mating flange. A first sealing block is fixedly connected to the lower end of the plug-in flange, and a first sealing ring is fixedly connected to the lower end of the first sealing block. A second sealing block is fixedly connected to the lower end of the plug-in flange, and a second sealing ring is fixedly connected to the lower end of the second sealing block. The mating flange has, from the outside to the inside, a first sealing groove, a second threaded hole, a second sealing groove, and a second pipe mounting hole. Both the mating flange and the plug-in flange are coated with an anti-corrosion coating. This highly corrosion-resistant multi-seal flange structure increases the overall sealing performance and extends the lifespan of the connection points, ensuring a tight connection for extended periods and providing excellent corrosion resistance, thus increasing the overall service life.

[0003] Existing flange connection structures typically use a single sealing gasket for sealing. Under high pressure, high temperature, or highly corrosive media conditions, this can easily lead to seal failure, leakage, or even safety accidents. In long-term use, the sealing gasket in existing flange structures is prone to plastic deformation or elastic degradation due to factors such as vibration, thermal expansion and contraction, or material aging, resulting in decreased sealing performance. Furthermore, the flange body is susceptible to corrosion in harsh environments (such as humid conditions, corrosive gases, or liquids), further weakening its structural strength and sealing reliability.

[0004] Therefore, a flange structure with multiple sealing guarantees, structural stability and corrosion resistance is needed to improve the overall sealing performance, durability and environmental adaptability of the connection. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a flange with a multi-seal structure.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a flange with a multi-seal structure, including a first connecting plate, a second connecting plate on one side of the first connecting plate, connecting thread holes evenly arranged circumferentially between the first connecting plate and the second connecting plate, a connecting block on one side of the first connecting plate, a connecting pipe on one side of the first connecting plate, a contact block on one side of the connecting pipe, a transmission head penetrating into the contact block on one side of the first connecting plate, a spherical sealing gasket connecting the first connecting plate and the second connecting plate, and a connecting sealing gasket between the first connecting plate and the contact block.

[0008] Optionally, the first connecting disc and the second connecting disc have the same structure, and the connecting thread hole is connected by a screw.

[0009] Optionally, the connecting pipe is fixedly connected to the contact block, and the contact block is in close contact with the connecting disc.

[0010] Optionally, a supporting inner cylinder is fixedly connected to the bottom of the connecting disc one, and a supporting inner cylinder is fixedly connected to the bottom of the connecting disc two. A transmission groove is provided between the supporting inner cylinder one and the supporting inner cylinder two, and a spherical sealing gasket is provided between the two transmission grooves.

[0011] Optionally, a transmission head is provided on one side of the connecting block, and a connecting sealing gasket is provided between the contact block and the connecting block.

[0012] Optionally, the outer surfaces of the first connecting plate, the second connecting plate, and the connecting pipe are all coated with an anti-corrosion coating, which can effectively resist the erosion of chemical media.

[0013] The beneficial effects achieved by this utility model are as follows:

[0014] This invention, by setting up connecting disc one and connecting disc two and configuring an elastic sealing gasket between them, forms multiple sealing barriers, effectively blocking the leakage path of the medium and significantly improving the sealing performance of the connection. It is especially suitable for industrial applications with high pressure and high sealing requirements. The elastic sealing gasket used has excellent elasticity and deformation recovery ability, and can continuously provide pre-tightening force during long-term operation, reducing sealing failure caused by creep or stress relaxation, and ensuring the durability and stability of the sealing effect. The design of the connecting block not only enhances the connection strength between the connecting discs and the overall structural stability, but also further compresses the sealing area, improves sealing reliability, and prevents loosening caused by external vibration or pressure fluctuations.

[0015] This invention provides an anti-corrosion coating on the outer surface of the connecting plate and connecting pipe, effectively isolating them from external corrosive media, significantly improving the corrosion resistance and weather resistance of the flange, and extending its service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the entire utility model from another perspective;

[0018] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 4 yes Figure 3 A schematic diagram of the partial structure of part A in the middle.

[0020] In the diagram, 1. Connecting disc one; 101. Supporting inner cylinder one; 102. Connecting block; 2. Connecting disc two; 201. Supporting inner cylinder two; 3. Connecting thread hole; 4. Connecting pipe; 401. Contact block; 402. Threaded groove; 5. Spherical sealing gasket; 501. Transmission groove; 6. Connecting sealing gasket; 7. Transmission head. Detailed Implementation

[0021] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] Example 1

[0023] like Figure 1-4 As shown, this utility model provides a flange with a multi-seal structure, including a connecting plate 1, a connecting plate 2 on one side of the connecting plate 1, connecting thread holes 3 evenly arranged circumferentially between the connecting plate 1 and the connecting plate 2, a connecting block 102 on one side of the connecting plate 1, a connecting pipe 4 on one side of the connecting plate 1, a contact block 401 on one side of the connecting pipe 4, a transmission head 7 penetrating into the contact block 401 on one side of the connecting plate 1, a spherical sealing gasket 5 connecting the connecting plate 1 and the connecting plate 2, and a connecting sealing gasket 6 between the connecting plate 1 and the contact block 401.

[0024] This invention, by setting up connecting disc 1 and connecting disc 2, and configuring an elastic sealing gasket between them, forms multiple sealing barriers, effectively blocking the leakage path of the medium and significantly improving the sealing performance of the connection. It is especially suitable for industrial applications with high pressure and high sealing requirements. The elastic sealing gasket used has excellent elasticity and deformation recovery ability, and can continuously provide pre-tightening force during long-term operation, reducing sealing failure caused by creep or stress relaxation, and ensuring the durability and stability of the sealing effect. The design of connecting block 102 not only enhances the connection strength and overall structural stability between the connecting discs, but also further compresses the sealing area, improves sealing reliability, and prevents loosening caused by external vibration or pressure fluctuations. The anti-corrosion coating is set on the outer surface of the connecting disc and the connecting pipe 4, effectively isolating external corrosive media, significantly improving the corrosion resistance and weather resistance of the flange, and extending its service life.

[0025] Example 2

[0026] like Figure 1-3 As shown, connecting disc 1 and connecting disc 2 have the same structure, and the connecting thread hole 3 is connected by a screw.

[0027] Specifically, the connection between connecting disc 1 and connecting disc 2 can be used for flange connection. The threaded holes 3 are designed for stability between the two connecting discs, and the screws passing through these holes facilitate a stable connection. The design of the threaded holes 3 not only enhances the stability between connecting discs 1 and 2 but also simplifies installation and disassembly. The threaded holes 3 are evenly distributed between connecting discs 1 and 2, ensuring uniform force distribution and preventing leakage caused by uneven force. Furthermore, different threaded holes 3 can be used to further secure connecting discs 1 and 2 according to different needs.

[0028] In this embodiment, the connecting pipe 4 is fixedly connected to the contact block 401, and the contact block 401 is in close contact with the connecting disc 1.

[0029] Specifically, the fixed connection between the connecting pipe 4 and the contact block 401 ensures a tight fit between the connecting disc 1 and the contact block 401, effectively preventing media leakage. Furthermore, the fixed connection between the connecting pipe 4 and the contact block 401 can be welding, threaded connection, or other mechanical fixing methods, depending on the specific application scenario and requirements. Welding provides a more robust connection, suitable for high-pressure or high-temperature working environments; while threaded connections facilitate installation and disassembly, suitable for scenarios requiring frequent maintenance or replacement. Regardless of the connection method used, the stability and sealing performance between the connecting pipe 4 and the contact block 401 are ensured. In addition, the tight contact between the contact block 401 and the connecting disc 1 is achieved through precise machining and assembly processes, ensuring the overall sealing performance of the flange.

[0030] Example 3

[0031] like Figure 3-4 As shown, the bottom of the connecting disc 1 is fixedly connected to the inner support cylinder 101, and the bottom of the connecting disc 2 is fixedly connected to the inner support cylinder 201. A transmission groove 501 is provided between the inner support cylinder 101 and the inner support cylinder 201, and a spherical sealing gasket 5 is provided between the two transmission grooves 501.

[0032] Specifically, the design of the supporting inner cylinder 101 and supporting inner cylinder 201, in conjunction with the connecting sealing gasket 6, allows for a sealed connection between connecting disc 1 and connecting disc 2, facilitating subsequent stable connection control. The design of the spherical sealing gasket 5 further enhances the sealing performance of the flange. It can not only accommodate minor displacements between connecting disc 1 and connecting disc 2, but also effectively isolate media leakage, ensuring the stability and safety of the connection. Furthermore, the transmission groove 501 makes the spherical sealing gasket 5 more flexible during installation and adjustment, facilitating precise sealing. This multi-seal structure design greatly improves the sealing reliability and durability of the flange under various complex working conditions. The flexible adjustment capability of the transmission groove 501 allows the spherical sealing gasket 5 to achieve complete sealing at different angles and positions, thus ensuring a perfect fit between the gasket and connecting disc 1 and connecting disc 2.

[0033] In this embodiment, a transmission head 7 is provided on one side of the connecting block 102, and a connecting sealing gasket 6 is provided between the contact block 401 and the connecting block 102.

[0034] Specifically, the dynamic sealing performance of the connecting block 102 is further enhanced by the cooperation between the transmission head 7 and the elastic sealing gasket. Simultaneously, when not needed, it prevents external impurities from entering the connecting block 102, ensuring a clean and stable internal environment. The design of the transmission head 7 ensures that the connecting block 102 maintains tight contact with the contact block 401 during rotation or movement, thereby preventing media leakage. The elastic sealing gasket possesses excellent elasticity and resilience, adapting to the minute deformations of the connecting block 102 under different operating conditions, ensuring a long-lasting and stable sealing effect. Furthermore, the material of the elastic sealing gasket typically has good corrosion resistance and wear resistance, effectively extending the service life of the sealing structure.

[0035] In this embodiment, the outer surfaces of connecting disc 1, connecting disc 2, and connecting pipe 4 are all coated with an anti-corrosion coating, which can effectively resist the erosion of chemical media.

[0036] Specifically, the anti-corrosion coating is made of advanced anti-corrosion materials, possessing excellent corrosion resistance, weather resistance, and heat resistance. This coating not only prevents the flange from being corroded by chemical media during use but also resists oxidation and aging under extreme weather conditions, thus maintaining the overall performance and stability of the flange. Furthermore, the anti-corrosion coating increases the surface smoothness of the flange, reducing the adhesion and accumulation of media on the flange surface, further reducing the risk of leakage. This design not only improves the sealing performance of the flange but also extends its service life and reduces maintenance costs.

[0037] In summary, this flange with a multi-seal structure achieves multiple sealing barriers through the design of connecting disc 1, connecting disc 2, and the elastic sealing gasket between them, significantly improving sealing performance. Simultaneously, the design of connecting block 102 enhances structural stability and sealing, while the excellent elasticity and resilience of the elastic sealing gasket ensures long-lasting and stable sealing performance. Furthermore, the anti-corrosion coating on the exterior of the connecting discs and connecting pipe 4 further improves the flange's corrosion resistance and weather resistance, extending its service life and reducing leakage risk and maintenance costs. This multi-seal structure design not only meets the requirements of high sealing performance but also reflects a comprehensive consideration of material durability and environmental adaptability, providing an efficient and reliable solution for flanges in industrial applications.

[0038] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

[0039] Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model shall be within the protection scope of this utility model. For example, although the structures of specific connecting discs, connecting blocks, and elastic sealing gaskets are described in the above embodiments, those skilled in the art will understand that the specific shapes, dimensions, and materials of these components can be adjusted according to actual needs without departing from the core idea of ​​this utility model. Similarly, the type and application method of the anti-corrosion coating can also be selected according to the specific medium and usage environment. These changes and improvements should all be considered to fall within the protection scope of this utility model.

Claims

1. A flange plate having a multiple seal structure, characterized by: The device includes a connecting disc 1 (1), a connecting disc 2 (2) on one side of the connecting disc 1 (1), a connecting thread hole (3) evenly arranged circumferentially between the connecting disc 1 (1) and the connecting disc 2 (2), a connecting block (102) on one side of the connecting disc 1 (1), a connecting tube (4) on one side of the connecting disc 1 (1), a contact block (401) on one side of the connecting tube (4), a transmission head (7) penetrating into the contact block (401) on one side of the connecting disc 1 (1), a spherical sealing gasket (5) connecting the connecting disc 1 (1) and the connecting disc 2 (2), and a connecting sealing gasket (6) between the connecting disc 1 (1) and the contact block (401).

2. The flange plate with multiple seal structure according to claim 1, characterized in that: The connecting disc one (1) and the connecting disc two (2) have the same structure, and the connecting thread hole (3) is connected by a screw.

3. The flange plate with multiple seal structure according to claim 1, characterized in that: The connecting pipe (4) is fixedly connected to the contact block (401), and the contact block (401) is in close contact with the connecting disk (1).

4. The flange plate with multiple seal structure according to claim 1, characterized in that: The bottom of the connecting disc one (1) is fixedly connected to the supporting inner cylinder one (101), and the bottom of the connecting disc two (2) is fixedly connected to the supporting inner cylinder two (201). A transmission groove (501) is provided between the supporting inner cylinder one (101) and the supporting inner cylinder two (201), and a spherical sealing gasket (5) is provided between the two transmission grooves (501).

5. The flange plate with multiple seal structure according to claim 1, characterized in that: A transmission head (7) is provided on one side of the connecting block (102), and a connecting sealing gasket (6) is provided between the contact block (401) and the connecting block (102).

6. The flange plate with multiple seal structure according to claim 1, characterized in that: The outer surfaces of the connecting disc one (1), connecting disc two (2) and connecting pipe (4) are all coated with an anti-corrosion coating, which can effectively resist the erosion of chemical media.

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