CN2765031Y

CN2765031Y - Multi-purpose seam-less lining tube of glass fiber reinforced plastic

Info

Publication number: CN2765031Y
Application number: CN 03212935
Authority: CN
Inventors: 孙英久; 齐国栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-29
Filing date: 2003-04-29
Publication date: 2006-03-15
Anticipated expiration: 2013-04-29

Abstract

The utility model discloses a multi-purpose seamless lining glass fiber reinforced plastic pipe, which is characterized in that the utility model comprises a seamless steel pipe (1) and a glass pipe (2), wherein the outer wall of the glass pipe (2) is compounded with the inner wall of the seamless steel pipe (1) by thermal pressure. When the utility model is manufactured, after the seamless steel pipe (1) is heated and degreased through the inner wall, the inner surface of the seamless steel pipe is carried out with blasting treatment to become smooth and clean, and then the prepared glass raw material is mixed and melted to be pulled into the glass pipe according to raw material proportion and arranged in the seamless steel pipe, the inner surface of which is processed. At the softening temperature of 600DEG. C-680DEG. C, according to the difference of the coefficient of thermal expansion of both pipes, under the pressure action of a pressure attaching device, the lining glass fiber reinforced plastic pipe can be obtained through hot compacting. The utility model has the advantages of reasonable preparation, advanced technology, satisfactory quality, low cost and high efficiency, and the utility model can be used for oil transporting operation in oil exploitation and conveying liquid or powder material in the production of chemical industry, food, feed, etc.

Description

A kind of multipurpose non-seam liner glass steel pipe

Technical field

The utility model belongs to petroleum production, chemical industry, food, and liquid or powder are carried and are used pipeline, particularly a kind of multipurpose non-seam liner glass steel pipe in the fields such as feed.

Background technique

In recent years, in petroleum production,, influenced output, also strengthened cost of production owing to there is phenomenon such as pipeline fat content height.At home and abroad, some enterprise has also adopted a spot of stainless steel or Al-alloy pipe, and this mode not only costs an arm and a leg, and inner wall coarse.Also the glass inner-lining pipe is also being attempted to adopt by some enterprise, but because the glass tube size is short, and seam is too many, and not only rough inner surface, friction factor are big, and glass-lined bursts easily to producing and quality is brought very big influence.

The model utility content

The purpose of this utility model is to provide a kind of cost low, long service life, the multipurpose non-seam liner glass steel pipe that pipe internal surface is smooth.

Technical solution of the present utility model can realize according to following mode:

A kind of multipurpose non-seam liner glass steel pipe, it comprises: seamless steel pipe, glass tube; The inwall hot pressing of the outer wall of described glass tube and seamless steel pipe is compound.

The utility model internal surface is smooth, and no seam, manufacturing efficiency height, cost are low, lays simply in the application, has reduced by half heat pipe, has prolonged the Repair cycle of oil well, has saved substantial contribution.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is an overall structure schematic representation of the present utility model.

Embodiment

Non-seam liner glass steel pipe is to be composited under the hot pressing of hot-press equipment with the seamless steel pipe that a no seam glass tube is made liner.

As shown in the figure, the utility model comprises: seamless steel pipe 1, glass tube 2; The inwall hot pressing of the outer wall of described glass tube 2 and seamless steel pipe 1 is compound.

Concrete process route of the present utility model is as follows:

To be drawn into the glass tube of finished product, the seamless steel pipe of packing into after heating simultaneously then and making glass tube reach softening temperature, is carried out hot pressing and the compound back of steel pipe and seals sealing moulding it by hot-press equipment.During making, at first seamless steel pipe internal wall is heated after the degreasing, with the seamless steel pipe internal surface sandblast handle bright and clean, the frit that will prepare: SiO then ₂Al ₂O ₃Fe ₂O ₃B ₂O ₃CaO MgO Na ₂O AS ₂O ₃Mixed melting by a certain percentage, pull into glass tube and seamless steel pipe that the internal surface of packing into has been handled well in, when 600 ℃-680 ℃ of softening temperatures, poor according to the linear expansion coeffcient of two pipes, set up under the hot pressing function that is equipped with in pressure,, obtain liner glass steel pipe by hot-forming.Its concrete steps are as follows:

500 ℃ of steel pipe heating--degreasing--sandblast--blowing off---check

Frit is analyzed, and--raw material--melts--trombone slide--inspection---sealing joint

Glass tube is packed in the steel pipe, and----680 ℃--are played dynamic pressure and set up---moulding that hot pressing is compound--traction--fully to heat 600 ℃.The liner glass steel pipe batching is:

SIO ₂?Al ₂O ₃?Fe ₂O ₃?B ₂O ₃?CaO?MgO?Na ₂O?As ₂O ₃

74.2％?4.5％?0.3％?1％?5.3％?0.4％?14％?0.3％

During making, seamless steel pipe 1 is through inwall heating degreasing, afterwards, with the seamless steel pipe internal surface sandblast handle bright and clean, the frit that will prepare then, raw material ratio mixed melting by 2 glass inner-lining pipe in the accompanying drawing pulls into glass tube, and in the seamless steel pipe handled well of the internal surface of packing into, when 600 ℃-680 ℃ of softening temperatures, poor according to the thermal expansion coefficient of two pipes, set up under the pressure effect that is equipped with in pressure,, promptly obtain liner glass steel pipe by hot-forming.

The main effect of the utility model moulding is:

1, because the material physical and chemical index of the physical and chemical index of glass and steel pipe is close, particularly draws Stretch coefficient, thermal coefficient of expansion, heat endurance etc., so, in processing and use procedure, glass The glass bushing pipe just can not produce and burst phenomenon.

2, steel pipe internal-surface owing to removed greasy dirt and impurity, makes and the contacting of glass bushing pipe Purify fully.

3, because attached method assembling is pressed in employing, so in lining process processed, make glass bushing pipe and steel pipe Between the interlayer air driven out of gradually, can not produce bubble like this. When adding hot pressing, because Cold shrinkage and thermal expansion is tightly waled glass bushing pipe and steel pipe.

4, according to the theory of molecular diffusion infiltration, in heating process, or during processing parks, Can produce between the molecule between glass bushing pipe and the steel pipe and interpenetrate, improve like this glass lined The intensity of pipe and quality.

5, owing to the glass possess hydrophilic property, in use glass surface can form water membrane, makes the glass bushing pipe just have certain anti-fat effect like this.

Though 6, do not have seam, so the surface is very smooth because the glass bushing pipe is long.

Claims

A kind of multipurpose non-seam liner glass steel pipe is characterized in that, comprising: seamless steel pipe (1), glass tube (2); The inwall hot pressing of the outer wall of described glass tube (2) and seamless steel pipe (1) is compound.