Anti-static and anti-corrosion conducting ring

Abstract

An anti-static and anti-corrosion conducting ring belongs to the field of grounding conductive connecting pieces, and comprises a pipe fitting which comprises at least two fluid inlet / outlet ports for fluid to flow in / out; a conductive fluoroplastic lining layer is arranged on the inner wall of the pipe fitting, a grounding plate is fixedly arranged on the pipe fitting, at least part of the pipe fitting is made of a conductive material so that the conductive fluoroplastic lining layer and the grounding plate can be electrically connected, a pipeline connecting part is arranged on the fluid inlet and outlet port, a grounding connecting part is arranged on the grounding plate, and the pipeline connecting part and the grounding connecting part are electrically connected. The conducting ring is mainly applied to transmission of non-conducting media, static electricity can be prevented from being generated due to the fact that the conducting fluoroplastic lining layer is adopted, even if the static electricity is generated, the static electricity can be led to the ground through the grounding plate, and therefore medium combustion and explosion accidents caused by the static electricity are avoided, safety of a conveying pipeline is greatly improved, and the service life of the conveying pipeline is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of grounding conductive connectors, in particular to an anti-static and anti-corrosion conductive ring. Background Art

[0002] Polytetrafluoroethylene (abbreviated as F4 or PTFE) or other fluoroplastics are one of the most corrosion-resistant materials in the world today. In important industrial production departments such as chemical, petrochemical, metallurgy, nuclear energy and military industry, polytetrafluoroethylene-lined anti-corrosion pipelines are often used to transport corrosive media. Corresponding connectors are required between pipelines. However, polytetrafluoroethylene is a non-metallic plastic and is non-conductive. If it encounters petroleum or other non-conductive media for transportation, the friction between the two will generate static electricity and cause explosions. Therefore, it is necessary to design a grounding conductive connector that is anti-static and anti-corrosion and can guide static electricity in the transportation pipeline to the ground. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide an anti-static and anti-corrosion conductive ring.

[0004] The technical solution adopted by the utility model is as follows: an anti-static and anti-corrosion conductive ring, including a pipe fitting, the pipe fitting including at least two fluid inlet and outlet ports for fluid inflow / outflow; the inner wall of the pipe fitting is provided with a conductive fluoroplastic lining, the pipe fitting is fixedly provided with a grounding plate, the pipe fitting is at least partially made of a conductive material so that the conductive fluoroplastic lining and the grounding plate are electrically connected, the fluid inlet and outlet port is provided with a pipeline connecting portion, and the grounding plate is provided with a grounding connecting portion.

[0005] The pipe fitting is provided with two fluid inlet and outlet ports, and the pipe fitting is a flange structure.

[0006] The pipe fitting is provided with three or more fluid inlet and outlet ports, and the pipeline connection portion is a flange connection structure.

[0007] The end of the conductive fluoroplastic lining is fixedly matched with the outer end face flange of the fluid inlet and outlet port.

[0008] The conductive fluoroplastic lining is made by mixing graphite powder and / or carbon black with polytetrafluoroethylene or other fluoroplastic resins in a ratio of 2-30%.

[0009] The pipe is made of a metal conductive material, and the grounding plate is made of a metal conductive material.

[0010] The pipe fitting and the grounding plate are connected by welding or are integrally formed.

[0011] The grounding connection portion is a wiring through hole arranged on the end surface of the grounding plate.

[0012] A limiting groove is circumferentially arranged on the end surface of each fluid inlet and outlet port.

[0013] The limiting groove is an annular dovetail groove or a plurality of arc-shaped dovetail grooves.

[0014] The beneficial effects of the utility model are as follows: the utility model provides an anti-static and anti-corrosion conductive ring, which is used for connecting pipelines when transporting petroleum or other non-conductive media. It adopts a conductive fluoroplastic lining made of a mixture of polytetrafluoroethylene resin and graphite and / or carbon black combined with a groundable pipe fitting to avoid static electricity effect caused by friction with petroleum or other non-conductive media. If static electricity is generated, the charge will be transferred to the grounding plate of the outer pipe fitting to the ground through the conductive graphite, thereby avoiding the occurrence of medium combustion and explosion accidents caused by static electricity, greatly improving the safety of the transportation pipeline and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0016] Figure 1 It is a front view of the utility model;

[0017] Figure 2 It is a side cross-sectional view of the utility model;

[0018] In the figure, 1-ground connection part, 2-ground plate, 3-pipe fitting, 31-fluid inlet and outlet port, 4-conductive fluoroplastic lining, 5-pipe connection part, 6-limiting groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0020] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0021] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0022] like Figure 1 and Figure 2 As shown, in an embodiment of the utility model, an anti-static and anti-corrosion conductive ring includes a pipe 3, and the pipe 3 includes at least two fluid inlet and outlet ports 31 for fluid inflow / outflow; the inner wall of the pipe 3 is provided with a conductive fluoroplastic lining 4, and the pipe 3 is fixedly provided with a grounding plate 2, and the pipe 3 is at least partially made of conductive material so that the conductive fluoroplastic lining 4 and the grounding plate 2 are electrically connected. A pipeline connecting part 5 is provided on the fluid inlet and outlet port 31, and a grounding connecting part 1 is provided on the grounding plate 2. The conductive fluoroplastic lining 4 and the conductive fluoroplastic lining 2 refer to a fluoroplastic lining 2 containing a certain amount of conductive material, and its resistance value can be relatively large, as long as a certain amount of static electricity can be derived from the medium. Therefore, it has anti-static and anti-corrosion functions, and even if static electricity is still generated, it can be guided to the ground through the grounding plate 2 on the pipe 3 through this lining, thereby avoiding the occurrence of medium combustion and explosion accidents caused by static electricity, greatly improving the safety of the conveying pipeline.

[0023] Further, the pipe fitting 3 is provided with two fluid inlet and outlet ports 31, and the pipe fitting 3 is a flange structure. Alternatively, the pipe fitting 3 is provided with three or more fluid inlet and outlet ports 31, and the pipeline connecting portion 5 is a flange connection structure. The flange connection structure is fixed to the matching connecting piece on the pipeline by bolts and nuts, which is convenient for installation and disassembly. In addition, the pipeline connecting portion 5 can also be a threaded sleeve arranged on the outer circle of the fluid inlet and outlet port 31, which is directly connected to the corresponding thread on the pipeline, or it can be connected by an external matching stainless steel clamp and a sealing ring.

[0024] Furthermore, the end of the conductive fluoroplastic lining 4 is fixedly matched with the outer end face flange of the fluid inlet and outlet port 31 .

[0025] Furthermore, the conductive fluoroplastic lining 4 is made of graphite powder mixed with polytetrafluoroethylene or other fluoroplastic resins in a ratio of 2-30%. The manufacturing method of this conductive fluoroplastic lining is a prior art, for example, another previously disclosed patent CN103174884A of the inventor discloses a preparation process of an antistatic polytetrafluoroethylene lining in an anti-corrosion pipeline. In addition, graphite powder can also be replaced by other materials, such as carbon fiber.

[0026] Furthermore, the pipe 3 is made of a metal conductive material, and the grounding plate 2 is made of a metal conductive material, preferably a material with excellent conductivity, corrosion resistance, and high and low temperature resistance, such as stainless steel and titanium alloy.

[0027] Furthermore, the pipe fitting 3 and the grounding plate 2 are connected by welding or formed as one piece, and the overall structure is firm and reliable.

[0028] Furthermore, a limiting groove 6 is circumferentially arranged on the end surface of each fluid inlet and outlet port 31 for fixing the conductive fluoroplastic lining 4 .

[0029] Furthermore, the limiting groove 6 is an annular dovetail groove or a plurality of arc-shaped dovetail grooves or other shapes, and a shape that is easy to process is preferably selected.

[0030] Furthermore, the grounding connection portion 1 is a wiring through hole arranged on the end surface of the grounding plate 2, which can be directly connected to the grounding wire, or a long conductive wire or conductive extension portion with an outer end for grounding can be arranged on the grounding plate 2.

[0031] Furthermore, the grounding plate 1 described in the anti-static and anti-corrosion conductive ring of the utility model can be provided in multiple numbers, which can be used to fix pipelines in addition to grounding.

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An anti-static and anti-corrosion conductive ring, comprising a pipe (3), wherein the pipe (3) comprises at least two fluid inlet and outlet ports (31) for fluid inflow / outflow; characterized in that: The inner wall of the pipe (3) is provided with a conductive fluoroplastic lining (4), a grounding plate (2) is fixedly provided on the pipe (3), at least part of the pipe (3) is made of a conductive material so that the conductive fluoroplastic lining (4) and the grounding plate (2) are electrically connected, a pipeline connection portion (5) is provided on the fluid inlet and outlet port (31), and a grounding connection portion (1) is provided on the grounding plate (2); The end of the conductive fluoroplastic lining (4) is fixedly matched with the outer end face flange of the fluid inlet and outlet port (31); A limiting groove (6) is circumferentially arranged on the end surface of each fluid inlet and outlet port (31); The limiting groove (6) is an annular dovetail groove or a plurality of arc-shaped dovetail grooves.

2. The anti-static and anti-corrosion conductive ring according to claim 1, characterized in that: The pipe fitting (3) is provided with two fluid inlet and outlet ports (31), and the pipe fitting (3) is a flange structure.

3. The anti-static and anti-corrosion conductive ring according to claim 1, characterized in that: The pipe fitting (3) is provided with three or more fluid inlet and outlet ports (31), and the pipeline connection portion (5) is a flange connection structure.

4. The anti-static and anti-corrosion conductive ring according to claim 1, characterized in that: The pipe (3) is made of a metallic conductive material, and the grounding plate (2) is made of a metallic conductive material.

5. The anti-static and anti-corrosion conductive ring according to claim 4, characterized in that: The pipe fitting (3) and the grounding plate (2) are connected by welding or are integrally formed.

6. The anti-static and anti-corrosion conductive ring according to claim 5, characterized in that: The grounding connection portion (1) is a wiring through hole arranged on the end surface of the grounding plate (2).

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