CN202360911U

CN202360911U - Three-wall reinforcing pipe material

Info

Publication number: CN202360911U
Application number: CN2011204515329U
Authority: CN
Inventors: 周成立
Original assignee: 周成立
Current assignee: Fujian Hoshing Plastics Co., Ltd.
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-08-01
Anticipated expiration: 2021-11-15

Abstract

The utility model relates to an industrial pipe material, in particular to a three-wall reinforcing pipe material. The three-wall reinforcing pipe material is characterized by consisting an outer layer, a middle layer and an inner layer. The outer layer, the middle layer and the inner layer are fused by hot melting; the middle layer is processed to be a corrugated middle layer. The three-wall reinforcing pipe material is high in longitudinal strength, high in ring stiffness and strong in tensile resistance and can meet trenchless construction requirement.

Description

Three walls strengthen tubing

Technical field

The utility model relates to a kind of industrial tubing, relates in particular to a kind of three walls and strengthens tubing.

Background technique

The tubing in fields such as power cable, communication sheath, draining blowdown is generally polypropylene single-wall corrugated pipe and HDPE double-wall corrugated pipe at present; Wherein there is following shortcoming in the polypropylene single-wall corrugated pipe: 1, because of being single layer structure; Structural imperfection is arranged on strength; Ring stiffness is relatively low, and the longitudinal strength of tubing is not high yet, and is crooked easily; 2, because its outer wall all is corrugated, cause tubing when non-excavating construction, the frictional force of outer pipe wall and soil is bigger, and stretching resistance is not enough, can be prone to break, and can't satisfy the non-excavating construction requirement; 3, because its inwall ripple gets in the tubing and can can't take out if any stone when causing site construction, influence is constructed; 4, because it has only one deck wall, so the shock resistance destructiveness (standard No.: Q/HHSY2010-003) of comparing with the compound enhancing tubing of multi-layer structure that there is a big difference.

There is following shortcoming in the HDPE double-wall corrugated pipe: 1, the HDPE material is softer, and ring stiffness is low; 2, vicat temperature is lower, can not satisfy the electric power purposes; 3, outer wall ripple, when non-excavating construction and soil frictional force big, stretching resistance is not enough, can be prone to break, (standard No.: GB-T 19472.1-2004) can't meet the demands.

The model utility content

The technical problem that the utility model will solve is to provide a kind of longitudinal strength high, and ring stiffness is high, and stretching resistance is strong, and satisfies the three walls enhancing tubing of non-excavating construction requirement.

The utility model is achieved in that a kind of three walls strengthen tubing; It is characterized in that: this three wall strengthens tubing and is made up of skin, mesosphere and internal layer; Through hot-melt welds together, said mesosphere is processed as the corrugated mesosphere between said skin, mesosphere and the internal layer.

The internal diameter of said tubing is 50-1500mm.

Said skin is the smooth structure layer, and thickness is 2-10mm.

Said internal layer is the smooth structure layer, and thickness is 1-8mm.

The thickness in said mesosphere is 1.5-8mm.

Said skin, mesosphere and internal layer are modified polypropene or modified poly ethylene layer.

The crest width in said corrugated mesosphere is 5-40mm.

Above-mentioned three walls strengthen the production method of tubing, the steps include:

Step 1, extrude the mesosphere, extrude internal layer with plastic extruder with plastic extruder;

Step 2, mesosphere and inner laminar flow behind same mould, under action of high temperature, it is bonded together each other, form the bellows of double-walled behind the cooling and shaping;

Step 3, extrude skin with plastic extruder, under action of high temperature, skin is coated on the double-wall corrugated pipe of being made up of internal layer and mesosphere, behind cooling and shaping, forming the mesosphere is ripple struction, the smooth three smooth wall pipe of inside and outside layer.

The utility model three walls strengthen tubing has following advantage: because skin and internal layer are smooth, smooth structure layer; Form stable triangle with the mesosphere; Thereby can greatly promote the compressive strength and the tubing buckling strength of tubing; Be smooth smooth structure simultaneously, thereby the frictional force of tubing and soil is less when being used for non-excavating construction, can satisfy the non-excavating construction requirement because of it; In addition, the ring stiffness of the utility model tubing can reach 50～100Kn/m2, and good heat resistance.

Description of drawings

Combine embodiment that the utility model is further described with reference to the accompanying drawings.

Fig. 1 is the overall structure schematic representation that the utility model three walls strengthen tubing.

Embodiment

Come the utility model is carried out detailed explanation below in conjunction with specific embodiment.

Seeing also shown in Figure 1ly, is that described a kind of three walls of the utility model strengthen tubing, comprises outer 1, mesosphere 2 and internal layer 3, and through hot-melt welds together, the internal diameter of said tubing is 50-1500mm between said outer 1, mesosphere 2 and the internal layer 3.

Outer 1 thickness is 2～10mm, adopts the polypropylene material through the good-toughness of modification, can improve anti-external damage performance; Its structure is smooth, smooth, plays the effect of reinforcement, and skin 1 forms stable triangle with mesosphere 2; Thereby can greatly promote the compressive strength and the tubing buckling strength of tubing; Be smooth smooth structure simultaneously, thereby the frictional force of tubing and soil is less when being used for non-excavating construction, can satisfy non-excavating construction because of it.

The thickness in mesosphere 2 is 1.5-8mm; Adopt the modified polypropylene material of good strength, its structure is hollow, continuous wave (ripple) shape, plays humidification; When reaching certain intensity, can save material; Gain in strength, can play the effect of sound insulation simultaneously, the crest width in said undulatory mesosphere 2 is 5-40mm.

The thickness of internal layer 3 is 1～8mm, adopts high lubricated modified polypropylene material, to reduce friction factor; Its structure is smooth, smooth, plays the effect of reinforcement, and internal layer 3 forms stable triangle with mesosphere 2; Thereby can greatly promote the compressive strength and the tubing buckling strength of tubing, the part that inwall system contacts with cable or medium, more smooth, smooth because of it; Get into and to take out smoothly if any stone, do not influence and wear cable or medium transport.

The production method that the utility model three walls strengthen tubing is: at first extrude the mesosphere with plastic extruder, extrude internal layer with plastic extruder; Then mesosphere and inner laminar flow behind same mould, under action of high temperature, it is bonded together each other, behind cooling and shaping, form the bellows of double-walled; Extrude skin with plastic extruder at last; Under action of high temperature; Skin is coated on the double-wall corrugated pipe of being made up of internal layer and mesosphere, and behind cooling and shaping, forming the mesosphere once more is ripple struction, the smooth three smooth wall pipe of inside and outside layer; All can good bond under action of high temperature between three layers, form whole.

The utility model three walls strengthen skin, mesosphere and the internal layer of tubing except adopting modified polypropylene material; Performance identical materials with it; Like modified polyethylene material etc., can realize the purpose of the utility model equally, same within the protection domain of the utility model.

Claims

1. a wall strengthens tubing, it is characterized in that: this three wall strengthens tubing to be made up of skin, mesosphere and internal layer, and through hot-melt welds together, said mesosphere is processed as the corrugated mesosphere between said skin, mesosphere and the internal layer.

2. three walls according to claim 1 strengthen tubing, and it is characterized in that: the internal diameter of said tubing is 50-1500mm.

3. three walls according to claim 1 strengthen tubing, and it is characterized in that: said skin is the smooth structure layer, and thickness is 2-10mm.

4. three walls according to claim 1 strengthen tubing, and it is characterized in that: said internal layer is the smooth structure layer, and thickness is 1-8mm.

5. three walls according to claim 1 strengthen tubing, and it is characterized in that: the thickness in said mesosphere is 1.5-8mm.

6. three walls according to claim 1 strengthen tubing, and it is characterized in that: said skin, mesosphere and internal layer are modified polypropene or modified poly ethylene layer.

7. three walls according to claim 5 strengthen tubing, and it is characterized in that: the crest width in said corrugated mesosphere is 5-40mm.