阅读说明：本技术 一种新型多功能复合钢管及其制备方法 (Novel multifunctional composite steel pipe and preparation method thereof ) 是由 吕文兴 于 2019-10-21 设计创作，主要内容包括：本发明涉及钢管设备领域,公开了一种新型多功能复合钢管及其制备方法,包括钢管本体和固接于所述钢管本体两端的连接机构,所述钢管本体的外表面设有塑胶层,所述钢管本体的内表面设有增强层,所述增强层的内侧涂有防腐层；所述连接机构为圆环形,所述连接机构的直径大于所述钢管本体的外径,所述连接机构包括螺栓孔、螺栓柱、螺栓帽以及密封垫圈,所述密封垫圈设于所述钢管本体的端部,所述连接机构的外表面依次设有塑胶层和防滑垫。本发明结构设计合理,钢管强度增强,不易腐蚀,外表不易刮伤磨损,同时钢管的两端设有连接结构,能够将钢管无缝连接,连接结构上设有防滑垫,方便工作人员紧急情况下攀爬,提高处理紧急情况的效率和速度。(The invention relates to the field of steel pipe equipment, and discloses a novel multifunctional composite steel pipe and a preparation method thereof, wherein the novel multifunctional composite steel pipe comprises a steel pipe body and connecting mechanisms fixedly connected to two ends of the steel pipe body, wherein a plastic layer is arranged on the outer surface of the steel pipe body, an enhancement layer is arranged on the inner surface of the steel pipe body, and an anti-corrosion layer is coated on the inner side of the enhancement layer; the connecting mechanism is in a ring shape, the diameter of the connecting mechanism is larger than the outer diameter of the steel pipe body, the connecting mechanism comprises bolt holes, bolt columns, bolt caps and sealing gaskets, the sealing gaskets are arranged at the end portions of the steel pipe body, and the outer surface of the connecting mechanism is sequentially provided with plastic layers and anti-slip mats. The steel pipe connecting structure is reasonable in structural design, the strength of the steel pipe is enhanced, the steel pipe is not easy to corrode, the outer surface of the steel pipe is not easy to scratch and wear, meanwhile, the two ends of the steel pipe are provided with the connecting structures, the steel pipe can be connected in a seamless mode, the connecting structures are provided with the anti-slip pads, workers can climb under emergency conditions conveniently, and the efficiency and the speed of handling the emergency conditions are improved.)

1. A novel multifunctional composite steel pipe comprises a steel pipe body and connecting mechanisms fixedly connected to two ends of the steel pipe body, and is characterized in that a plastic layer is arranged on the outer surface of the steel pipe body, an enhancement layer is arranged on the inner surface of the steel pipe body, and an anti-corrosion layer is coated on the inner side of the enhancement layer;

the connecting mechanism is in a ring shape, the diameter of the connecting mechanism is larger than the outer diameter of the steel pipe body, the connecting mechanism comprises bolt holes, bolt columns, bolt caps and sealing gaskets, the sealing gaskets are arranged at the end portions of the steel pipe body, and the outer surface of the connecting mechanism is sequentially provided with plastic layers and anti-slip mats.

2. The novel multifunctional composite steel pipe as claimed in claim 1, characterized in that: the plastic layer is made of polyurethane foamed plastic, the enhancement layer is made of glass fiber, carbon fiber and resin, and the anti-corrosion layer is made of polyethylene powder.

3. The novel multifunctional composite steel pipe as claimed in claim 1, characterized in that: the ring width of the connecting mechanism is 10-15 cm.

4. The novel multifunctional composite steel pipe as claimed in claim 1, characterized in that: four bolt columns are uniformly distributed on the connecting mechanism.

5. The novel multifunctional composite steel pipe as claimed in claim 1, characterized in that: the bolt hole, the bolt column and the bolt cap are matched with each other.

6. The novel multifunctional composite steel pipe as claimed in claim 1, characterized in that: the non-slip mat is in a sole shape, and the number of the non-slip mats is two.

7. The method for preparing a novel multifunctional composite steel pipe according to any one of claims 1 to 6, characterized in that: the preparation method comprises the following steps:

(1) preparing a steel pipe: preparing a steel pipe body and a connecting structure by using a steel pipe die, wherein the steel pipe body and the connecting structure are integrally formed;

(2) preparing an enhancement layer: arranging glass fibers and carbon fibers on a arranging machine to form hybrid fiber laid cloth, heating the glue material tank filled with mixed resin to keep the temperature of the mixed resin between 60 and 65 ℃ in the glue material tank, winding the hybrid fiber laid cloth on the inner side of the steel pipe body after the hybrid fiber laid cloth is impregnated with the mixed resin, and then curing to form a reinforcing layer;

(3) preparing an anticorrosive layer: preheating polyethylene powder in a preheating furnace at the preheating temperature of 285-290 ℃, and curing by adopting a fluidized bed dip-coating method after the completion, wherein the curing temperature is 190-200 ℃, and the curing time is 15 minutes to prepare an anticorrosive layer;

(4) preparing a plastic layer: and (3) preparing the polyurethane foaming plastic into a plastic layer by adopting a hot melting and pressurizing mode.

8. The preparation method of the novel multifunctional composite steel pipe according to claim 7, characterized in that: and (2) cutting the steel pipe in the step (1) into sections by adopting a flame cutting mode according to the separation of the connecting mechanism.

Technical Field

The invention relates to the field of steel pipe equipment, in particular to a novel multifunctional composite steel pipe and a preparation method thereof.

Background

Steel pipes are not only used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, but also are economical steels. The steel pipe is used for manufacturing the building structure net rack, the supporting column and the mechanical support, so that the weight can be reduced, the metal can be saved by 20-40%, and the industrialized mechanized construction can be realized. The steel pipe is used for manufacturing the highway bridge, so that steel can be saved, the construction is simplified, the area of a coating protective layer can be greatly reduced, and the investment and the maintenance cost are saved.

The steel pipe is used as a necessary material in the industries of petroleum drilling, refining, metallurgy, building and the like, has higher and higher utilization rate, and can be used for conveying fluid and powdery solid, exchanging heat energy and manufacturing mechanical parts and containers. Steel pipes are frequently used in the petrochemical industry, crude oil and chemical raw materials can be transported by the steel pipes, the steel pipes play a great role in the petrochemical industry, but some steel pipes cannot well maintain the corrosion resistance of an inner cavity when in use, are easy to rust in the inner cavity and cannot ensure the working effect of the steel pipes, while some industries use a great amount of stainless steel pipes for corrosion resistance, and in the using process, some stainless steel pipes have low strength, the service life of the steel pipes is shortened, the safety index is required to be examined, and great hidden danger is buried in safety accidents; meanwhile, the construction height of some steel pipes is high, the construction difficulty is increased, the construction process is time-consuming and labor-consuming, the later maintenance is difficult, and when an emergency occurs, the high-position steel pipes cannot be constructed, maintained or treated in time, so that the working efficiency is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a novel multifunctional composite steel pipe and a preparation method thereof, and the novel multifunctional composite steel pipe is simple and reasonable in structure and convenient to popularize.

A novel multifunctional composite steel pipe comprises a steel pipe body and connecting mechanisms fixedly connected to two ends of the steel pipe body, wherein a plastic layer is arranged on the outer surface of the steel pipe body, an enhancement layer is arranged on the inner surface of the steel pipe body, and an anti-corrosion layer is coated on the inner side of the enhancement layer;

the connecting mechanism is in a ring shape, the diameter of the connecting mechanism is larger than the outer diameter of the steel pipe body, the connecting mechanism comprises bolt holes, bolt columns, bolt caps and sealing gaskets, the sealing gaskets are arranged at the end portions of the steel pipe body, and the outer surface of the connecting mechanism is sequentially provided with plastic layers and anti-slip mats.

Preferably, the plastic layer is made of polyurethane foamed plastic, the reinforcing layer is made of glass fiber, carbon fiber and resin, and the anticorrosive layer is made of polyethylene powder.

Preferably, the width of the ring of the connecting mechanism is 10-15 cm.

Preferably, four bolt columns are uniformly distributed on the connecting mechanism.

Preferably, the bolt hole, the bolt column and the bolt cap are matched with each other.

Preferably, the non-slip mat is in the shape of a sole, and two non-slip mats are arranged.

Preferably, the preparation method comprises the following steps:

(1) preparing a steel pipe: preparing a steel pipe body and a connecting structure by using a steel pipe die, wherein the steel pipe body and the connecting structure are integrally formed;

(2) preparing an enhancement layer: arranging glass fibers and carbon fibers on a arranging machine to form hybrid fiber laid cloth, heating the glue material tank filled with mixed resin to keep the temperature of the mixed resin between 60 and 65 ℃ in the glue material tank, winding the hybrid fiber laid cloth on the inner side of the steel pipe body after the hybrid fiber laid cloth is impregnated with the mixed resin, and then curing to form a reinforcing layer;

(3) preparing an anticorrosive layer: preheating polyethylene powder in a preheating furnace at the preheating temperature of 285-290 ℃, and curing by adopting a fluidized bed dip-coating method after the completion, wherein the curing temperature is 190-200 ℃, and the curing time is 15 minutes to prepare an anticorrosive layer;

(4) preparing a plastic layer: and (3) preparing the polyurethane foaming plastic into a plastic layer by adopting a hot melting and pressurizing mode.

Preferably, the steel pipe in the step (1) is divided according to the connecting mechanism, and is cut into sections by adopting a flame cutting mode.

The invention has the beneficial effects that:

the novel multifunctional composite steel pipe has the advantages that the structural design is reasonable, the strength of the steel pipe can be improved through the novel multifunctional composite steel pipe, the steel pipe is not prone to corrosion, the appearance is not prone to scratching and abrasion, meanwhile, the two ends of the steel pipe are provided with the connecting structures, the steel pipe can be connected in a seamless mode, the anti-slip pads are arranged on the connecting structures, emergency situations can be handled conveniently, workers can climb on the steel pipe through the connecting structures to conduct operation, and the efficiency and the speed of handling the emergency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a front view of the present invention;

1-a steel pipe body, 2-a plastic layer, 3-an enhancement layer, 4-an anticorrosive layer, 5-a connecting mechanism, 51-a bolt column and 52-an anti-skid pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention easier to clearly understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

As shown in fig. 1, a novel multi-functional compound steel pipe, including steel pipe body 1 and coupling mechanism 5 of rigid coupling in steel pipe body 1 both ends, steel pipe body 1's surface is equipped with plastic layer 2, plastic layer 2 is by cold-proof, antiskid, anti-scratch's effect, steel pipe body 1's internal surface is equipped with enhancement layer 3, enhancement layer 3 has the effect of increasing steel pipe intensity, enhancement layer 3's inboard scribbles anticorrosive coating 4, anticorrosive coating 4 be titanium nanometer modified anticorrosive coating or polyethylene coating, anticorrosive coating 4 can prevent that the steel pipe from when transporting corrosive fluid, prevent corroding steel pipe body 1, anticorrosive coating 4 thickness is 1-2 mm.

The connecting mechanism 5 is annular and can be used for acting on a climbing column in emergency, the diameter of the connecting mechanism 5 is larger than the outer diameter of the steel pipe body 1, the ring width of the connecting mechanism 5 is 10-15cm, and the ring width meets the treading width of an adult when climbing; the connecting mechanism 5 comprises four bolt holes, four bolt columns 51, four bolt caps and sealing gaskets, the four bolt columns 51 are uniformly distributed on the connecting mechanism 5, the bolt holes, the four bolt columns 51 and the four bolt caps are matched with each other for use, the sealing gaskets are arranged at the end parts of the steel pipe body 1, and the sealing gaskets play a sealing role when the steel pipes are connected; the surface of coupling mechanism 5 is equipped with plastic layer 2 and slipmat 52 in proper order, the outside plastic layer 2 integrated into one piece of steel pipe, and slipmat 52 is the sole shape, and slipmat 52 is equipped with two, scrambles when making things convenient for the staff to handle emergency problems.

The preparation method of the steel pipe comprises the following steps:

(1) preparing a steel pipe: preparing a steel pipe body and a connecting structure by using a steel pipe die, wherein the steel pipe body and the connecting structure are integrally formed; the prepared steel pipe is divided into sections by a connecting mechanism in a flame cutting mode, wherein natural gas is preferably cut, and the natural gas has the characteristics of abundant reserves, low price, no pollution and the like. When natural gas flame cutting is carried out, a natural gas additive is added to generate novel flame cutting gas, the gas is used for flame cutting, so that the cutting effect is better, the cutting efficiency is improved, and the cutting cost is reduced.

(2) Preparing an enhancement layer: arranging glass fibers and carbon fibers on a arranging machine to form hybrid fiber laid cloth, heating the glue material tank filled with mixed resin to keep the temperature of the mixed resin between 60 and 65 ℃ in the glue material tank, winding the hybrid fiber laid cloth on the inner side of the steel pipe body after the hybrid fiber laid cloth is impregnated with the mixed resin, and then curing to form a reinforcing layer;

(3) preparing an anticorrosive layer: preheating polyethylene powder in a preheating furnace at the preheating temperature of 285-290 ℃, and curing by adopting a fluidized bed dip-coating method after the completion, wherein the curing temperature is 190-200 ℃, and the curing time is 15 minutes to prepare an anticorrosive layer;

(4) preparing a plastic layer: and (3) preparing the polyurethane foaming plastic into a plastic layer by adopting a hot melting and pressurizing mode.

During the use, connect the steel pipe through bolt hole, bolt post 51 and the cooperation bolt cap on the steel pipe connection structure, wherein sealed the pad can play and connect sealed effect, and highly higher when the steel pipe is connected, the construction is inconvenient, perhaps emergency need handle eminence steel pipe, can utilize coupling mechanism 5 to scramble, is equipped with slipmat 52 on the coupling mechanism 5, supplementary constructor scrambles, increases frictional force.

The composite steel pipe has reasonable structural design, the strength of the steel pipe can be enhanced through the composite steel pipe, the steel pipe is not easy to corrode, the appearance is not easy to scratch and wear, meanwhile, the two ends of the steel pipe are provided with the connecting structures, the steel pipe can be connected in a seamless mode, the anti-skid pads 52 are arranged on the connecting structures, emergency situations can be conveniently handled, workers can climb on the steel pipe through the connecting structures to conduct operation, and the efficiency and the speed of handling the emergency situations are improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.