CN213629394U

CN213629394U - Dustproof corrosion-resistant steel-bending type steel-plastic adapter

Info

Publication number: CN213629394U
Application number: CN202022265044.0U
Authority: CN
Inventors: 王效
Original assignee: Chongqing Jinsu Anticorrosive Pipe Fitting Co ltd
Current assignee: Chongqing Jinsu Anticorrosive Pipe Fitting Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-07-06
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to an crossover sub technical field specifically is a crossover sub is moulded to dustproof corrosion-resistant steel curved formula steel, including the crossover sub body, the crossover sub body includes the pipeline section, and the end of the horizontal pipeline section of pipeline section passes first connecting pipe, and the outside cover of first connecting pipe is equipped with the clamping ring, and the left side of the horizontal pipeline section of pipeline section is equipped with the pipeline, and one side end of pipeline is located the second connecting pipe, and the surface of clamping ring scribbles epoxy coal pitch layer, polyethylene powder layer and polyurethane waterproof layer in proper order. The utility model discloses first pipeline section and second pipeline section pass through threaded connection, and easy operation is convenient, and the setting of sealing washer makes pipeline and crossover sub leakproofness tighter, prevents that the dust from falling into the junction, and the setting of tight circle makes pipeline and crossover sub fasten more, and is difficult not hard up, anticorrosive coating and waterproof layer that first pipeline section and second pipeline section and tight circle set up have avoided corrosivity or other material to the corruption of pipe, further guarantee the life of pipe.

Description

Dustproof corrosion-resistant steel-bending type steel-plastic adapter

Technical Field

The utility model relates to an crossover sub technical field specifically is a crossover sub is moulded to crooked formula of dustproof corrosion-resistant steel.

Background

The adapter plays a role in conversion connection in a pipeline system, is one of main tools for connecting an upper pipeline and a lower pipeline, and the requirements on the safety and reliability of connection between pipelines are higher and higher due to continuous laying of rural water and natural gas pipelines, while the existing adapter has the following problems: the sealing structure of most of the conversion joints is complex, so that the working difficulty and the strength of installation personnel are increased; most of crossover subs are under long-time use, and crossover subs can be corroded the crossover subs under the effect of air or the water in the ground, can not guarantee crossover subs's life, and crossover subs does not have dustproof effect. In view of this, we propose a dustproof corrosion-resistant steel-bent type steel-plastic crossover joint.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crossover sub is moulded to crooked formula steel of dustproof corrosion-resistant steel to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a crossover sub is moulded to dustproof corrosion-resistant steel curved type, includes the crossover sub body, the crossover sub body includes the pipeline section, the end of the horizontal pipeline section of pipeline section passes first connecting pipe, the outside cover of first connecting pipe is equipped with presss from both sides tight circle, the left side of the horizontal pipeline section of pipeline section is equipped with the pipeline, one side end of pipeline is located the second connecting pipe, the surface that presss from both sides tight circle scribbles epoxy coal pitch layer, polyethylene powder layer and polyurethane waterproof layer in proper order.

Preferably, first HNBR hydrogenated nitrile rubber sealing washer is installed to the front end of the horizontal pipeline section of pipeline section, second HNBR hydrogenated nitrile rubber sealing washer and end are installed to the front end of pipeline one side and third HNBR hydrogenated nitrile rubber sealing washer is installed to the end.

Preferably, the pipe section clamping ring is a seamless steel pipe.

Preferably, the first connecting pipe and the second connecting pipe are made of PE pipes.

Preferably, the inner surface and the outer surface of the pipe section are sequentially coated with an epoxy coal asphalt layer, a polyethylene powder layer and a polyurethane waterproof layer.

Preferably, the first connection pipe and the second connection pipe are connected by a screw thread.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses first pipeline section and second pipeline section pass through threaded connection, and easy operation is convenient, and the setting of sealing washer makes pipeline and crossover sub leakproofness tighter, prevents that the dust from falling into the junction, and the setting of tight circle makes pipeline and crossover sub fasten more, and is difficult not hard up, anticorrosive coating and waterproof layer that first pipeline section and second pipeline section and tight circle set up have avoided corrosivity or other material to the corruption of pipe, further guarantee the life of pipe.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the overall cross-sectional structure of the present invention;

fig. 3 is a schematic view of the structure of the pipe section of the present invention.

In the figure: 1. a conversion head body; 11. a pipe section; 111. an epoxy coal tar pitch layer; 112. a polyethylene powder layer; 113. a polyurethane waterproof layer; 2. a first connecting pipe; 3. a clamping ring; 4. a second connecting pipe; 5. a pipeline; 6. a first HNBR hydrogenated nitrile rubber seal ring; 7. a second HNBR hydrogenated nitrile rubber seal ring; 8. and a third HNBR hydrogenated nitrile rubber sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a crossover sub is moulded to dustproof corrosion-resistant steel curved formula, includes crossover sub body 1, and crossover sub body 1 includes pipeline section 11, and the end of the horizontal pipeline section of pipeline section 11 passes first connecting pipe 2, and the outside cover of first connecting pipe 2 is equipped with clamping ring 3 for two connecting pipe sections are more fastened. The left side of the horizontal pipe section of pipe section 11 is equipped with pipeline 5, and one side end of pipeline 5 is located second connecting pipe 4, and the surface of clamping ring 3 scribbles epoxy coal tar pitch layer 111, polyethylene powder layer 112 and polyurethane waterproof layer 113 in proper order. The pipe section 11 and the clamping ring 3 are seamless steel pipes which are resistant to bending and torsion, good in toughness and not easy to damage during operation. The first connecting pipe 2 and the second connecting pipe 4 are made of PE pipes which are corrosion-resistant and wear-resistant. The inner and outer surfaces of the pipe section 11 are sequentially coated with an epoxy coal tar pitch layer 111, a polyethylene powder layer 112 and a polyurethane waterproof layer 113, so that an anti-corrosion effect is achieved.

First HNBR hydrogenated nitrile rubber sealing washer 6 is installed to the front end of the horizontal pipe section of pipeline section 11, and second HNBR hydrogenated nitrile rubber sealing washer 7 and the third HNBR hydrogenated nitrile rubber sealing washer 8 is installed to the front end of pipeline 5 one side, and the setting up of sealing washer makes the pipeline of connecting tighter with the crossover sub leakproofness, prevents that the dust from falling into the junction.

The first connecting pipe 2 and the second connecting pipe 4 are connected through threads, and are convenient to disassemble and assemble.

In this embodiment, the polyethylene powder is also called polyethylene powder resin coating, and is an anticorrosive powder coating prepared and processed by using high-pressure polyethylene (LDPE) as a base material and adding various functional additives and colors, and a coating layer has excellent chemical resistance, aging resistance, impact resistance, bending resistance, acid resistance and salt spray corrosion resistance.

In addition, the epoxy coal pitch is commonly called as asphalt, has excellent electrical insulation, water permeability resistance, microbial corrosion resistance, stray current resistance, heat resistance, temperature difference shock resistance and other excellent performances, and can be used at the temperature of-4-150 ℃.

Furthermore, the polyurethane waterproof coating is a single-component environment-friendly waterproof coating for liquid construction, takes imported polyurethane prepolymer as a basic component, and does not contain additives such as tar, asphalt and the like. It is cured after the contact of moisture in the air, and forms a firm, tough and seamless integral waterproof film on the surface of a base layer.

In particular, the HNBR hydrogenated nitrile rubber sealing ring has excellent characteristics of corrosion resistance, tear resistance and compression deformation resistance, and has better ozone resistance, sunlight resistance and weather resistance.

It is worth noting that the chemical name of PE is polyethylene, and the PE material is widely applied to the field of water supply and drainage manufacturing due to the characteristics of high strength, high temperature resistance, corrosion resistance, no toxicity, wear resistance and the like. Because it does not rust, it is an ideal pipe material for replacing general iron water supply pipe.

It is worth mentioning that seamless steel pipes have a hollow cross section and are used in large numbers as pipes for transporting fluids, such as oil, gas, water and some solid materials. Compared with solid steel such as round steel, the steel pipe has the same bending strength and torsion strength and lighter weight, and is economical section steel.

When the dustproof corrosion-resistant steel-bent steel-plastic conversion joint is used, firstly, epoxy coal pitch is adopted to carry out corrosion prevention treatment on a pipe section 11 and a clamping ring 3 of a conversion joint body 1, then a layer of polyethylene powder is coated on the surface of an epoxy coal pitch layer 111, a protective layer formed by the polyethylene powder can effectively prevent the epoxy coal pitch layer 111 from being damaged, so that the steel-bent steel-plastic conversion joint is not corroded, then a layer of polyurethane is coated on the surface of a polyethylene powder layer 112, further corrosion of substances in water to the steel-bent steel-plastic conversion joint is prevented, a polyurethane waterproof layer 113 has a waterproof effect, after the coating is finished, the clamping ring 3 is sleeved on a first connecting pipe 2, then a first HNBR hydrogenated nitrile rubber sealing ring 6 is installed in a groove at the front end of a transverse pipe section of the pipe section 11, a second HNBR hydrogenated nitrile rubber sealing ring 7 is installed in a groove at the front end of one side of a pipeline 5, and a third HNBR hydrogenated nitrile rubber sealing ring 8 is installed in a groove at the end of the pipeline, after the installation finishes, pass through threaded connection to first connecting pipe 2 and second connecting pipe 4 and be in the same place, further connect pipeline 5 and adapter, fasten pipeline 5 and the adapter of connecting through pressing from both sides tight circle 3 at last for pipeline 5 and adapter are difficult not hard up.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a crossover sub is moulded to curved formula of dustproof corrosion-resistant steel, includes crossover sub body (1), its characterized in that: the adapter body (1) comprises a pipe section (11), the end of the horizontal pipe section of the pipe section (11) penetrates through a first connecting pipe (2), a clamping ring (3) is sleeved on the outer side of the first connecting pipe (2), a pipeline (5) is arranged on the left side of the horizontal pipe section of the pipe section (11), the end of one side of the pipeline (5) is located in a second connecting pipe (4), an epoxy coal asphalt layer (111), a polyethylene powder layer (112) and a polyurethane waterproof layer (113) are sequentially coated on the outer surface of the clamping ring (3);

first HNBR hydrogenated nitrile rubber sealing washer (6) is installed to the front end of the horizontal pipe section of pipe section (11), third HNBR hydrogenated nitrile rubber sealing washer (8) are installed to the front end of pipeline (5) one side installed second HNBR hydrogenated nitrile rubber sealing washer (7) and end.

2. The dust-proof corrosion-resistant steel-bent steel-plastic adapter according to claim 1, characterized in that: the pipe section (11) and the clamping ring (3) are seamless steel pipes.

3. The dust-proof corrosion-resistant steel-bent steel-plastic adapter according to claim 1, characterized in that: the first connecting pipe (2) and the second connecting pipe (4) are made of PE pipes.

4. The dust-proof corrosion-resistant steel-bent steel-plastic adapter according to claim 1, characterized in that: the inner surface and the outer surface of the pipe section (11) are coated with epoxy coal tar pitch layers (111).

5. The dust-proof corrosion-resistant steel-bent steel-plastic adapter according to claim 1, characterized in that: the first connecting pipe (2) and the second connecting pipe (4) are connected through threads.