CN211059517U

CN211059517U - HDPE steel wire mesh skeleton polyethylene composite pipe

Info

Publication number: CN211059517U
Application number: CN201922089017.XU
Authority: CN
Inventors: 沈东�; 郭红江; 唐建华
Original assignee: Jiangsu Haiwei Plastic Industry Technology Co ltd
Current assignee: Jiangsu Haiwei Plastic Industry Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-07-21
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to a HDPE steel wire net skeleton polyethylene composite pipe, it includes interior basic unit, the internal surface of interior basic unit is equipped with the inner protective layer, interior basic unit surface is equipped with one deck glass fiber layer through first layer hot melt adhesive, glass fiber layer surface is equipped with one deck polyurethane heat preservation through second layer hot melt adhesive, polyurethane heat preservation surface is equipped with first layer steel wire layer and second layer steel wire layer through third layer hot melt adhesive, second layer steel wire layer surface sets up one layer of outer protective layer through fourth layer hot melt adhesive; the first layer steel wire layer winds around the inner base material in a leftward spiral winding mode, the second layer steel wire layer winds around the inner base material in a rightward spiral winding mode, the first layer steel wire layer and the second layer steel wire layer are overlapped up and down to form a net-shaped steel wire framework formed by left and right spiral winding, the middle of the first layer steel wire layer and the second layer steel wire layer is additionally provided with an epoxy resin layer, and the first layer steel wire layer and the second layer steel wire layer. The utility model discloses make retooling time shorten greatly, improved production efficiency.

Description

HDPE steel wire mesh skeleton polyethylene composite pipe

Technical Field

The utility model relates to a compound pipe technical field especially relates to a HDPE steel wire net skeleton polyethylene compound pipe.

Background

The steel wire net skeleton plastic composite pipe is an improved new type steel skeleton plastic composite pipe, and the new type pipeline is made up by using high-strength plastic-coated steel wire net skeleton and thermoplastic plastic polyethylene as raw material, using steel wire winding net as skeleton reinforcement body of polyethylene plastic pipe, using high-density polyethylene (HDPE) as base body and adopting high-performance HDPE modified adhesive resin to tightly connect the steel wire skeleton together with inner and outer layers of high-density polyethylene so as to obtain good composite effect.

In the in-service use process, because expend with heat and contract with cold flexible inconsistent, the outer of steel wire net skeleton plastics composite pipe easily drops or the fracture, simultaneously because high density polyethylene surface is smooth, the winding net skeleton in surface is not good to be adhered to, and long-term use steel wire is in disorder easily, causes tubular product to scrap.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the aforesaid not enough, provide a HDPE steel wire net skeleton polyethylene composite pipe, improve compressive property and wearability, increase of service life.

The purpose of the utility model is realized like this:

the HDPE steel wire mesh skeleton polyethylene composite pipe comprises an inner base layer, wherein an inner protective layer is arranged on the inner surface of the inner base layer, a glass fiber layer is arranged on the outer surface of the inner base layer through a first layer of hot melt adhesive, a polyurethane heat insulation layer is arranged on the outer surface of the glass fiber layer through a second layer of hot melt adhesive, a first steel wire layer and a second steel wire layer are arranged on the outer surface of the polyurethane heat insulation layer through a third layer of hot melt adhesive, and an outer protective layer is arranged on the outer surface of the second steel wire layer through a fourth layer of hot melt adhesive; the first layer steel wire layer winds around the inner base material in a leftward spiral winding mode, the second layer steel wire layer winds around the inner base material in a rightward spiral winding mode, the first layer steel wire layer and the second layer steel wire layer are overlapped up and down to form a net-shaped steel wire framework formed by left and right spiral winding, the middle of the first layer steel wire layer and the second layer steel wire layer is additionally provided with an epoxy resin layer, and the first layer steel wire layer and the second layer steel wire layer.

The utility model provides a HDPE steel mesh skeleton polyethylene composite pipe, the inboard of inner protective layer still is provided with a plurality of strengthening ribs, along inner basal layer axial extension, along inner basal layer circumference evenly distributed.

Compared with the prior art, the beneficial effects of the utility model are that:

the glass fiber cotton is embedded in the polyethylene of the inner base layer, and the polyurethane heat-insulating layer is arranged outside the inner base layer, so that the heat-insulating effect is good, the temperature of each layer in the pipe fitting is maintained in a stable range, the material thermal expansion in the pipe fitting caused by the temperature fluctuation of fluid in a pipeline is prevented, or the quick cracking caused by local defects and stress concentration due to cold shrinkage is prevented, and the service life of the pipe fitting is prolonged;

the utility model discloses a wire net skeleton passes through multilayer structure and sets up, and the one deck spiral winding left, another layer is to the right spiral winding, sets up the epoxy layer scarf joint between two-layer, realizes better compound effect through multilayer composite construction, has improved the cohesiveness of two-layer wire net skeleton, can realize less deformation volume simultaneously, non-deformable in the use, difficult fracture and dislocation have strengthened the rigidity and the impact resistance of pipe fitting, increase of service life.

The utility model adopts HDPE bonding resin with better temperature performance as hot melt adhesive connecting material, the inner wall of the inner base layer is provided with a plurality of reinforcing ribs, and the integral temperature resistance and shock resistance of the pipe body are better; the rhombic grid steel wire mesh also enables the steel wire mesh framework layer to have better tensile property; the design of outer protective layer and interior protective layer makes the body more wear-resisting in construction and use, compares current body, has prolonged the life of body under the same environment and in service behavior.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a longitudinal sectional view of the present invention.

Wherein:

interior basic unit 1, first layer hot melt adhesive 2, glass fiber layer 3, second floor hot melt adhesive 4, polyurethane heat preservation 5, third layer hot melt adhesive 6, first layer steel wire layer 7, epoxy layer 8, second layer steel wire layer 9, fourth layer hot melt adhesive 10, outer protective layer 11, strengthening rib 12, inner protective layer 13.

Detailed Description

For better understanding of the technical solution of the present invention, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present invention, but only the embodiments of the present invention. It should be noted that the description of the positional relationship of the components, such as the component a is located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.

Example 1:

referring to fig. 1-2, fig. 1 is a schematic diagram of the structure of a HDPE steel wire mesh skeleton polyethylene composite pipe. As shown in the figure, the inner base layer comprises an inner base layer 1, an inner protective layer 13 is arranged on the inner surface of the inner base layer 1, and a plurality of reinforcing ribs 12 are further arranged on the inner side of the inner protective layer 13, extend along the axial direction of the inner base layer 1 and are uniformly distributed along the circumferential direction of the inner base layer.

The outer surface of the inner base layer 1 is provided with a glass fiber layer 3 through a first hot melt adhesive layer 2, the outer surface of the glass fiber layer 3 is provided with a polyurethane heat-insulating layer 5 through a second hot melt adhesive layer 4, the outer surface of the polyurethane heat-insulating layer 5 is provided with a first steel wire layer 7 and a second steel wire layer 9 through a third hot melt adhesive layer 6, and the outer surface of the second steel wire layer 9 is provided with an outer protective layer 11 through a fourth hot melt adhesive layer 10.

The first layer of hot melt adhesive 2, the second layer of hot melt adhesive 4, the third layer of hot melt adhesive 6 and the fourth layer of hot melt adhesive 10 are made of HDPE bonding resin materials.

First layer steel wire layer 7 is around the spiral winding of interior basic unit 1 left, and second floor steel wire layer 9 is around the spiral winding of inlayer substrate right, and first layer steel wire layer 7 and second floor steel wire layer 9 superpose from top to bottom and become about spiral winding fashioned netted steel wire framework, and the centre increases one deck epoxy layer 8, through the bonding of epoxy layer 8 integration, the utility model discloses have high strength, tear resistance, wear-resisting characteristic, and anti-seismic performance is good, uses safe and reliable.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a HDPE steel mesh skeleton polyethylene composite pipe which characterized in that: the heat-insulating and heat-insulating composite material comprises an inner base layer (1), wherein an inner protective layer (13) is arranged on the inner surface of the inner base layer (1), a glass fiber layer (3) is arranged on the outer surface of the inner base layer (1) through a first layer of hot melt adhesive (2), a polyurethane heat-insulating layer (5) is arranged on the outer surface of the glass fiber layer (3) through a second layer of hot melt adhesive (4), a first layer of steel wire layer (7) and a second layer of steel wire layer (9) are arranged on the outer surface of the polyurethane heat-insulating layer (5) through a third layer of hot melt adhesive (6), and an outer protective layer (11) is arranged on the outer surface of the second layer of steel wire layer; first layer steel wire layer (7) are around inner base layer (1) spiral winding left, and second layer steel wire layer (9) are around inner substrate spiral winding right, and first layer steel wire layer (7) and second layer steel wire layer (9) are superimposed from top to bottom to become about spiral winding fashioned netted steel wire framework, increase one deck epoxy layer (8) in the middle, bond through epoxy layer (8) integration.

2. The HDPE steel wire mesh framework polyethylene composite pipe as claimed in claim 1, wherein: the inner side of the inner protection layer (13) is also provided with a plurality of reinforcing ribs (12) which extend along the axial direction of the inner base layer (1) and are uniformly distributed along the circumferential direction of the inner base layer (1).