Valve flange for ball valve

Abstract

The valve flange for the ball valve comprises a first flange and a second flange, the first flange comprises a finish paint layer, an anti-corrosion paint layer, an intermediate paint layer, a primer layer and a base material layer, the finish paint layer is acrylic polyurethane finish paint, the anti-corrosion paint layer is polyurethane anti-corrosion paint, the intermediate paint layer is epoxy micaceous iron intermediate paint, and the primer layer is a base material layer. And the primer layer is epoxy zinc-rich primer. The finish paint layer has good glossiness, weather resistance and pollution resistance, so that the surface of the flange can be kept attractive, damage of external factors such as ultraviolet rays and rainwater to the internal coating is prevented, the anti-corrosion paint layer has good chemical corrosion resistance, weather resistance and wear resistance, different working environments and medium requirements can be met, and the service life of the flange is prolonged. The middle paint layer contains flaky mica iron oxide, and the mica iron oxide is arranged in parallel in the coating, so that permeation of moisture, oxygen and other corrosive media can be effectively blocked, and the shielding effect of the coating is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve flange technology, specifically a valve flange for ball valves. Background Technology

[0002] A ball valve is a valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the valve axis. It can also be used for fluid regulation and control. Among them, the hard-seal V-type ball valve has a strong shearing force between the V-shaped ball core and the metal valve seat with hard alloy overlay, making it particularly suitable for media containing fibers, small solid particles, etc. Multi-port ball valves can not only flexibly control the merging, splitting, and switching of the flow direction of the medium in pipelines, but also close any channel and connect the other two channels. In the process of connecting the valve to the pipeline, the valve flange is often fastened to the flange on the pipeline. However, the valve flange used for ball valves has poor corrosion resistance, which makes it easy to be corroded during long-term use, thus affecting the service life. Therefore, we propose a valve flange for ball valves. Utility Model Content

[0003] The purpose of this utility model is to provide a valve flange for ball valves, which has the advantage of good corrosion resistance, and solves the problem that the current valve flanges for ball valves are not corrosion-resistant, which makes them easy to corrode during long-term use and thus affect their service life.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a valve flange for a ball valve, comprising a first flange and a second flange. The first flange comprises a topcoat layer, an anti-corrosion paint layer, an intermediate paint layer, a primer layer, and a substrate layer. The topcoat layer is an acrylic polyurethane topcoat, the anti-corrosion paint layer is a polyurethane anti-corrosion paint, the intermediate paint layer is an epoxy micaceous iron oxide intermediate paint, the primer layer is an epoxy zinc-rich primer, and the substrate layer is stainless steel. The first flange and the second flange are made of the same material.

[0005] Preferably, the bottom of the first flange is provided with an annular slot, the top of the second flange is provided with an annular groove, the bottom of the inner cavity of the annular groove is fixedly connected with an annular magnet, the top of the annular magnet is magnetically connected with an annular iron plate, the top of the annular iron plate is fixedly connected with an annular sealing gasket, and the annular sealing gasket is movably connected to the inner cavity of the annular groove.

[0006] Preferably, the topcoat layer is applied to the outside of the anti-corrosion paint layer, and the anti-corrosion paint layer is applied to the outside of the intermediate paint layer.

[0007] Preferably, the intermediate paint layer is applied to the outside of the primer layer, and the primer layer is applied to the substrate layer.

[0008] Preferably, the thickness of the topcoat layer is 20-30 μm, and the thickness of the anti-corrosion paint layer is 80-120 μm.

[0009] Preferably, the thickness of the intermediate paint layer is 50-80 μm, and the thickness of the primer layer is 20-30 μm.

[0010] Preferably, the first flange and the second flange are provided with through holes and through openings.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model utilizes a topcoat layer with excellent gloss, weather resistance, and stain resistance to maintain the aesthetic appearance of the flange surface and prevent damage to the internal coating from external factors such as ultraviolet rays and rainwater. The anti-corrosion paint layer possesses excellent chemical corrosion resistance, weather resistance, and wear resistance, adapting to different working environments and media requirements. The intermediate paint layer contains flaky mica iron oxide, which is arranged parallel within the coating to effectively block the penetration of moisture, oxygen, and other corrosive media, increasing the coating's shielding effect. The primer layer contains a large amount of zinc powder, which forms a dense zinc oxide protective film on the coating surface, effectively preventing oxygen and moisture from contacting the substrate and thus preventing rust and corrosion. This results in excellent corrosion resistance for the flange, thereby extending its service life.

[0013] 2. This utility model can form a sealing structure by using an annular slot and an annular sealing gasket, which can play a sealing role. The annular iron plate, annular groove and annular magnet can form a fixing mechanism to fix the annular sealing gasket on the second flange, and facilitate the installation and removal of the annular sealing gasket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the first flange structure of this utility model.

[0017] In the diagram: 1. First flange; 101. Topcoat layer; 102. Anti-corrosion paint layer; 103. Intermediate paint layer; 104. Primer layer; 105. Substrate layer; 2. Through hole; 3. Second flange; 4. Through port; 5. Annular slot; 6. Annular gasket; 7. Annular iron plate; 8. Annular groove; 9. Annular magnet. Detailed Implementation

[0018] 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.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Example 1:

[0021] Please see Figure 1-3 As shown, this utility model provides a valve flange for a ball valve, including a first flange 1 and a second flange 3. The first flange 1 includes a topcoat layer 101, an anti-corrosion paint layer 102, an intermediate paint layer 103, a primer layer 104, and a substrate layer 105. The topcoat layer 101 is an acrylic polyurethane topcoat, the anti-corrosion paint layer 102 is a polyurethane anti-corrosion paint, the intermediate paint layer 103 is an epoxy micaceous iron oxide intermediate paint, the primer layer 104 is an epoxy zinc-rich primer, and the substrate layer 105 is stainless steel. The first flange 1 and the second flange 3... The materials of Lan 3 are the same. The topcoat layer 101 is applied to the outside of the anti-corrosion paint layer 102, the anti-corrosion paint layer 102 is applied to the outside of the intermediate paint layer 103, the intermediate paint layer 103 is applied to the outside of the primer layer 104, and the primer layer 104 is applied to the substrate layer 105. The thickness of the topcoat layer 101 is 20-30μm, the thickness of the anti-corrosion paint layer 102 is 80-120μm, the thickness of the intermediate paint layer 103 is 50-80μm, and the thickness of the primer layer 104 is 20-30μm.

[0022] This technical solution utilizes a topcoat layer 101 with excellent gloss, weather resistance, and stain resistance to maintain the flange surface's aesthetic appeal and prevent damage to the internal coating from external factors such as ultraviolet rays and rain. The anti-corrosion paint layer 102 possesses excellent chemical corrosion resistance, weather resistance, and abrasion resistance, adapting to different working environments and media requirements. The intermediate paint layer 103 contains flaky mica iron oxide, which is arranged in parallel within the coating, effectively blocking the penetration of moisture, oxygen, and other corrosive media, increasing the coating's shielding effect. The primer layer 104 contains a large amount of zinc powder, which forms a dense zinc oxide protective film on the coating surface, effectively preventing oxygen and moisture from contacting the substrate, thus preventing rust and corrosion. This results in excellent corrosion resistance for the flange, thereby extending its service life.

[0023] Example 2:

[0024] Based on Embodiment 1, this utility model is as follows: Figure 1-3 As shown, the bottom of the first flange 1 is provided with an annular slot 5, the top of the second flange 3 is provided with an annular groove 8, the bottom of the inner cavity of the annular groove 8 is fixedly connected with an annular magnet 9, the top of the annular magnet 9 is magnetically connected with an annular iron plate 7, the top of the annular iron plate 7 is fixedly connected with an annular sealing gasket 6, and the annular sealing gasket 6 is movably connected to the inner cavity of the annular groove 8.

[0025] This technical solution uses an annular slot 5 and an annular sealing gasket 6 to form a sealing structure, which can play a sealing role. Using an annular iron plate 7, an annular groove 8 and an annular magnet 9, a fixing mechanism can be formed to fix the annular sealing gasket 6 on the second flange 3, and facilitate the installation and removal of the annular sealing gasket 6.

[0026] The working principle of this utility model is as follows: The topcoat layer 101 has good gloss, weather resistance, and pollution resistance, which can keep the flange surface beautiful and prevent damage to the internal coating by external factors such as ultraviolet rays and rain. The anti-corrosion paint layer 102 has good chemical corrosion resistance, weather resistance, and wear resistance, which can adapt to different working environments and media requirements. The intermediate paint layer 103 contains flake-shaped mica iron oxide, which is arranged in parallel in the coating, effectively blocking the penetration of moisture, oxygen, and other corrosive media, and increasing the shielding effect of the coating. The primer layer 104 contains a large amount of zinc powder, which can form a dense zinc oxide protective film on the coating surface, effectively preventing oxygen and moisture from contacting the substrate, thereby preventing the substrate from rusting and corroding. This gives the flange good corrosion resistance and improves the service life of the flange. The annular slot 5 and the annular sealing gasket 6 can form a sealing structure to play a sealing role. The annular iron plate 7, the annular groove 8, and the annular magnet 9 can form a fixing mechanism to fix the annular sealing gasket 6 on the second flange 3 and facilitate the installation and removal of the annular sealing gasket 6.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A valve flange for a ball valve, comprising a first flange (1) and a second flange (3), characterized in that: The first flange (1) includes a topcoat layer (101), an anti-corrosion paint layer (102), an intermediate paint layer (103), a primer layer (104), and a substrate layer (105). The topcoat layer (101) is an acrylic polyurethane topcoat, the anti-corrosion paint layer (102) is a polyurethane anti-corrosion paint, the intermediate paint layer (103) is an epoxy micaceous iron oxide intermediate paint, the primer layer (104) is an epoxy zinc-rich primer, and the substrate layer (105) is stainless steel. The first flange (1) and the second flange (3) are made of the same material.

2. The valve flange for a ball valve according to claim 1, characterized in that: The bottom of the first flange (1) is provided with an annular slot (5), and the top of the second flange (3) is provided with an annular groove (8). An annular magnet (9) is fixedly connected to the bottom of the inner cavity of the annular groove (8). An annular iron plate (7) is magnetically connected to the top of the annular magnet (9). An annular sealing gasket (6) is fixedly connected to the top of the annular iron plate (7). The annular sealing gasket (6) is movably connected to the inner cavity of the annular groove (8).

3. The valve flange for a ball valve according to claim 1, characterized in that: The topcoat layer (101) is applied to the outside of the anti-corrosion paint layer (102), and the anti-corrosion paint layer (102) is applied to the outside of the intermediate paint layer (103).

4. A valve flange for a ball valve according to claim 1, characterized in that: The intermediate paint layer (103) is applied to the outside of the primer layer (104), and the primer layer (104) is applied to the substrate layer (105).

5. A valve flange for a ball valve according to claim 1, characterized in that: The thickness of the topcoat layer (101) is 20-30 μm, and the thickness of the anti-corrosion paint layer (102) is 80-120 μm.

6. A valve flange for a ball valve according to claim 1, characterized in that: The thickness of the intermediate paint layer (103) is 50-80 μm, and the thickness of the primer layer (104) is 20-30 μm.

7. A valve flange for a ball valve according to claim 1, characterized in that: The first flange (1) and the second flange (3) are provided with through holes (2) and through openings (4).

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