CN201314202Y

CN201314202Y - Technology collar of underground high-pressure GRP (glass reinforced plastic) pipe

Info

Publication number: CN201314202Y
Application number: CNU2008201832575U
Authority: CN
Inventors: 李斌; 张丽雯; 李文; 李方
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-23
Filing date: 2008-12-23
Publication date: 2009-09-23
Anticipated expiration: 2018-12-23

Abstract

The utility model relates to a technology collar of an underground high-pressure GRP (glass reinforced plastic) pipe, which is composed of a metal pipe nipple (1), a glass fiber (2), a glass glaze (3) and O-shaped resin sealing rings (4). The technology collar is characterized in that: the glass glaze (3) is coated on the inner surface of the metal pipe nipple (1), the outer surface of the metal pipe nipple (1) presents a shape of a concave ring (or a spiral ring). the fiberglass (2) is wound on the outer surface of the metal pipe nipple (1), and the O-shaped resin sealing rings (4) are adhered at the two ends of the metal pipe nipple (1). The technology collar has the advantages that: the capabilities of pressure enduring, corrosion preventing and shock resisting of a pipeline are improved; as the glass glaze corrosion-preventing technology is adopted at the inner surface of the metal collar, firstly, the corrosion-preventing capability is improved, and secondly, metal fishing tools can be used.

Description

Down-hole high pressure glass reinforced plastic pipe technology box cupling

One, technical field:

A kind of down-hole high pressure glass reinforced plastic pipe technology box cupling is applicable to the oil-field flooding pipeline, is specially adapted to the connector of well high-pressure glass steel down-hole, oil field pipe.

Two, background technology:

In order to solve the corrosion of waterflood-transmission line in the high salinity environment, on steel pipe, adopted thousand and one way, as: the plating of nickel phosphatization, H87 coating, glass-lined pipe etc., but the processing at aspects such as the quality of material, construction quality, pipe joints is also unsatisfactory, adopt at present the high-pressure fiberglass pipe joint to use prefabricated glass fiber material, but can't solve several respects problem 1, load can not be up to standard; Can not joint when 2, salvaging; What 3, tube wall can not be done is too thick.

Three, summary of the invention:

Down-hole high pressure glass reinforced plastic pipe technology box cupling can overcome the above problems well, can improve the quality of product simultaneously, increases its application life.

Down-hole high pressure glass reinforced plastic pipe technology box cupling, form by metal tube pipe nipple (1), glass fiber (2), glass glaze (3) and the resin-sealed circle of " O " shape (4), it is characterized in that, described metal tube pipe nipple (1) inner surface scribbles glass glaze (3), external surface is spill ring-type (or spiral ring), external surface twines glass fiber (2), is stained with the resin-sealed circle of " O " shape (4) at its two ends.

Its advantage exists:

1, with on the hydraulic screw-on machine or when unloading box cupling, because the existence of metal handle can increase its folder power;

2, because the effect of metal box cupling, the glass fiber reinforced plastic tube wall can increase, and box cupling can be done the same with high-pressure glass fibre reinforced plastic pipe slightly, has increased withstand voltage, anticorrosion, the impact resistance of pipeline;

3, metal box cupling inner surface adopts the glass glaze aseptic technic, and the one, increase resistance to corrosion, the 2nd, can use the metal fishing tool;

4, the resin-sealed circle of " O " shape is in order to seal when the metal tube pipe nipple is connected with the metal box cupling.

5, the resin-sealed corrosion-resisting function that encloses of " O " shape.

Four, description of drawings

Fig. 1, spill technology box cupling sectional drawing

Fig. 2, spirality technology box cupling sectional drawing

Wherein: metal tube pipe nipple (1), glass fiber (2), glass glaze (3) and the resin-sealed circle of " O " shape (4)

Five, specific embodiment

Down-hole high pressure glass reinforced plastic pipe technology box cupling, form by metal tube pipe nipple (1), glass fiber (2), glass glaze (3) and the resin-sealed circle of " O " shape (4), it is characterized in that, described metal tube pipe nipple (1) inner surface scribbles glass glaze (3), external surface is spill ring-type (or spiral ring), and external surface twines glass fiber (2).

Earlier carry out preliminary treatment with glass glaze (3) at metal tube pipe nipple (1) inner surface that processes, its purpose one is to increase resistance to corrosion, the 2nd, can use the metal fishing tool

Metal tube pipe nipple (1) external surface is processed into spill ring-type or spiral ring, hand is stuck with paste glass fiber (2) in ring-type, until spill or spiral are filled up, concordant with outer metallic surface, coating bisphenol A type epoxy resin then, laterally twine glass fiber (2) again,, be stained with the resin-sealed circle of " O " shape (4) at its two ends as extexine.

Twine two～five layers of glass fiber on the glass reinforced plastic pipe mould of down-hole earlier, again the metal tube pipe nipple of finishing (1) is placed on two, its inner surface is bonded on the glass fiber inner liner, is twining at last, until intact pipe.

Being connected of metal tube pipe nipple and metal box cupling adopted tiltedly or the flat thread connection.

Claims

1, a kind of down-hole high pressure glass reinforced plastic pipe technology box cupling, form by metal tube pipe nipple (1), glass fiber (2), glass glaze (3) and the resin-sealed circle of " O " shape (4), it is characterized in that, described metal tube pipe nipple (1) inner surface scribbles glass glaze (3), external surface is spill ring-type or spiral ring, external surface twines glass fiber (2), is stained with the resin-sealed circle of " O " shape (4) at its two ends.