High strength flange with corrosion resistant liner

Abstract

The utility model discloses a kind of high-strength flanges with anticorrosive lining, belong to pipeline connecting piece technical field. Mainly including connecting valve, the left end of connecting valve is threadedly connected with first flange, the right end of connecting valve is threadedly connected with second flange, the connecting place of second flange and connecting valve is fixedly installed with protective ring, the inside of connecting valve is equipped with valve groove, the inner surface of valve groove is sprayed with anticorrosive coating, the top of connecting valve is fixedly installed with sealing plate, the upper end of sealing plate is installed with fixed plate, the periphery of fixed plate and sealing plate is threadedly connected with locking bolt, the front end of protective ring is fixedly installed with sealing ring, the front end of second flange is threadedly connected with connecting groove, effectively prevent medium from top leakage, also prevent external impurities from leaking in and corrode ball valve flange simultaneously.The high-strength flange with anticorrosive lining of the application reaches good sealing effect, and anticorrosive performance is strong.

Description

Technical Field

[0001] This invention relates to the field of pipe fittings technology, and more specifically, to a high-strength flange with an anti-corrosion lining. Background Technology

[0002] In the fields of petrochemicals, marine engineering, pharmaceuticals, and environmental protection, flange connection systems are critical sealing components for pipelines, valves, and pressure vessels. Their performance directly affects the system's safety, sealing performance, and service life. However, traditional flanges, especially those made of stainless steel, can corrode in corrosive media and under high pressure. This corrosion can occur in the internal flow channels of ball valves and other flanges, leading to localized perforation, liquid leakage, and potential safety accidents. Furthermore, some ball valve flanges may exhibit unreliable sealing, allowing external substances to enter the valve body and cause corrosion.

[0003] Therefore, it is necessary to provide a high-strength flange with an anti-corrosion lining to solve the above problems. Summary of the Invention

[0004] Based on the aforementioned problems in the prior art, the purpose of this application is to provide a high-strength flange with an anti-corrosion lining, achieving good sealing effect and strong anti-corrosion performance.

[0005] The technical solution adopted by this application to solve its technical problem is: a high-strength flange with anti-corrosion lining, including a connecting valve, wherein a first flange is threadedly connected to the left end of the connecting valve, a second flange is threadedly connected to the right end of the connecting valve, and a protective ring is fixedly installed at the connection between the second flange and the connecting valve.

[0006] Furthermore, a valve groove is provided on the inner side of the connecting valve, and the inner surface of the valve groove is coated with an anti-corrosion coating.

[0007] Furthermore, a sealing plate is fixedly installed at the top of the connecting valve, and a fixing plate is installed at the upper end of the sealing plate. Locking bolts are threadedly connected to the fixing plate and the sealing plate around its perimeter.

[0008] Furthermore, a sealing ring is fixedly installed at the front end of the protective ring.

[0009] Furthermore, the front end of the second flange has a threaded connection groove.

[0010] The beneficial effects of this utility model are: the top adopts a sealing plate and a fixing plate, which are connected to the connecting valve by locking bolts, so that the sealing plate and the fixing plate are combined to form a sealing structure, forming a reliable end face seal, effectively preventing the medium from leaking from the top, and also preventing external impurities from leaking in and corroding the ball valve flange. Attached Figure Description

[0011] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is an overall schematic diagram of a high-strength flange with an anti-corrosion lining according to this application;

[0013] Figure 2 for Figure 1 A cross-sectional view of the flange of the ball valve.

[0014] In the diagram: 1. Connecting valve; 2. First flange; 3. Second flange; 4. Fixing plate; 5. Protective ring; 6. Sealing ring; 7. Valve groove; 8. Anti-corrosion coating; 9. Connecting groove; 10. Sealing plate; 11. Locking bolt. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0017] In this invention, unless otherwise stated, the orientations used, such as "up" and "down," generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this invention.

[0018] like Figure 1-2 As shown, this application provides a high-strength flange with an anti-corrosion liner, including a connecting valve 1, a first flange 2 threadedly connected to the left end of the connecting valve 1, a second flange 3 threadedly connected to the right end of the connecting valve 1, and a protective ring 5 fixedly installed at the connection between the second flange 3 and the connecting valve 1.

[0019] A valve groove 7 is provided on the inner side of the connecting valve 1, and the inner surface of the valve groove 7 is coated with an anti-corrosion coating 8.

[0020] A sealing plate 10 is fixedly installed at the top of the connecting valve 1, and a fixing plate 4 is installed at the upper end of the sealing plate 10. The fixing plate 4 and the sealing plate 10 are connected by locking bolts 11 around the perimeter.

[0021] A sealing ring 6 is fixedly installed at the front end of the protective ring 5.

[0022] The front end of the second flange 3 has a threaded connection with a connecting groove 9.

[0023] Specifically, the workers use the connecting valve 1 as the core component of the first flange 2 and the second flange 3, and connect the first flange 2 and the second flange 3 with threads to connect them together. Then, the connection of the second flange 3 is reinforced by the protective ring 5, so that the flange can withstand high pressure and high load. The sealing ring 6 installed at the front end of the protective ring 5 provides the first static seal for the second flange 3 to contact the connecting valve 1.

[0024] The top is equipped with a sealing plate 10 and a fixing plate 4, which are connected to the connecting valve 1 by locking bolts 11. The sealing plate 10 and the fixing plate 4 are combined to form a sealing structure, forming a reliable end face seal, which effectively prevents the medium from leaking from the top, and also prevents external impurities from leaking in and corroding the ball valve flange.

[0025] An anti-corrosion coating 8 is sprayed onto the inner surface of the valve groove 7 inside the connecting valve 1. When the medium flows through the valve groove 7 inside the connecting valve 1 via the second flange 3, the anti-corrosion coating 8 on the surface can keep the valve groove 7 from corrosion.

[0026] The connecting groove 9 at the front end of the second flange 3 can be used to connect other accessories or pipes.

[0027] Obviously, the embodiments described above are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort should fall within the scope of protection of this invention.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0031] The above description is merely a preferred embodiment of this invention. The scope of protection of this invention is not limited to the above embodiments. All technical solutions falling within the scope of this invention's concept are within the scope of protection of this invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this invention should also be considered within the scope of protection of this invention.

Claims

1. A high-strength flange with an anti-corrosion lining, characterized in that: The device includes a connecting valve (1), with a first flange (2) threaded to the left end of the connecting valve (1) and a second flange (3) threaded to the right end of the connecting valve (1). A protective ring (5) is fixedly installed at the connection between the second flange (3) and the connecting valve (1).

2. The high-strength flange with anti-corrosion lining according to claim 1, characterized in that: The inner side of the connecting valve (1) is provided with a valve groove (7), and the inner surface of the valve groove (7) is coated with an anti-corrosion coating (8).

3. A high-strength flange with an anti-corrosion lining according to claim 2, characterized in that: A sealing plate (10) is fixedly installed at the top of the connecting valve (1), and a fixing plate (4) is installed at the upper end of the sealing plate (10). The fixing plate (4) and the sealing plate (10) are connected by locking bolts (11) around the perimeter.

4. A high-strength flange with an anti-corrosion lining according to claim 1, characterized in that: A sealing ring (6) is fixedly installed at the front end of the protective ring (5).

5. A high-strength flange with an anti-corrosion lining according to claim 1, characterized in that: The front end of the second flange (3) is threaded with a connecting groove (9).

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