CN201330933Y - Metal frame reinforced plastic composite pipe network for hot fluid - Google Patents

Abstract

The utility model provides a metal frame reinforced plastic composite pipe network for hot fluid, comprising a metal frame reinforced plastic composite pipe having a non-crosslinking fire-resistant polyethylene plastic outer layer and a non-crosslinking fire-resistant polyethylene plastic inner layer, a non-crosslinking fire-resistant polyethylene end enclosure, a reinforced composite pipe coupler formed by a non-crosslinking fire-resistant polyethylene plastic inner layer and a reinforced plastic outer layer; the composite pipes are connected with each other by the reinforced composite pipe couplers, forming the pipe network. The utility model has advantages of high bearing capacity, fire resistance, corrosion resistance, low production cost, convenient and reliable connection.

Description

Metallic framework reinforced plastic composite pipe network for hot fluid

Technical field:

The utility model relates to a kind of metal framework reinforced plastic composite pipe network, particularly hot fluid non-cross-linking refractory polyethylene (PE-RT) metal framework reinforced plastic composite pipe network.

Background technique:

Thermoplastic and the porose compound plastic composite pipe of metal frame; existing considerable report and patent; they have made significant contribution to the humidification of plastic tube with to the antisepsis of metal tubes such as steel pipe; as the patent No. 00222720.7; 01247511.4; 99114790.1; 99232026.7; but these pipelines have all mainly been done many research on anticorrosion and bearing capacity improve; but utilize excellent thermal characteristics is arranged; and environmental stress resistance performance; heat aging property; the plastic composite pipe that the plastics of anti-gasoline and aromatic hydrocarbons are made the steel-plastic composite pipe of said structure or had metal frame to strengthen; the research of this respect also lacks very much; particularly in delivery; the chemical mediator of higher temperature is carried; and the plastic duct system that needs to state more than the pipeline resistant to thermal aging performance performance; also main at present production technology and the engineering that relies on steel pipe to add the pipe network or the pure plastic pipe of thermal insulation layer and protective layer; production and application such as crosslinked polyethylene (PEX) pipeline; the production and the application of polybutylene (PB) pipe; because the compound plastic composite pipe bearing capacity of porose metal frame requires high; the pipe coupling that matches with it can not be easy to use the straight polymer pipe fitting that connects of fusion; must use Steel Skeleton to strengthen the composition polymer pipe fitting; the polymer pipe fitting that particularly pertusate Steel Skeleton strengthens; the existing higher bearing capacity of this class pipe fitting; have again and equal internal and external anti-corrosive ability of tubing and fusion switching performance easily; but it all is to form tube wall with being put into the compound extruded polymer of injection machine again behind the steel plate welding formation in the hole with holes tubular Steel Skeleton similar to tubular form that Steel Skeleton in the past strengthens the composition polymer fitting structure; the welding of tubular Steel Skeleton is complicated; the compound back of injection moulding exposed parts metal locating pin easy-to-rust damages; manufacture difficulty is big; cost of production is very high; operational safety is low; particularly in hot water pipe net uses; tubular Steel Skeleton and internal and external layer plastics are very easy in thermal expansion coefficient difference causes the delamination cracking destruction too greatly, have reduced working life.

The model utility content:

In view of above reason, the purpose of this utility model is in order to overcome above deficiency, provide a kind of multiple tube that makes to be connected firmly, jointing place mechanical strength height, bearing capacity height, nothing are leaked, the pipeline long service life is particularly suitable for the metallic framework reinforced plastic composite pipe network for hot fluid that the chemical mediator of hot water and higher temperature is carried.

Order of the present utility model is achieved like this:

The utility model metallic framework reinforced plastic composite pipe network for hot fluid, include the metal skeleton reinforced composite plastic pipeline of non-cross-linking refractory polyethylene plastic outer layer and non-crosslinked polyvinyl plastics internal layer, the enhancing composite tube joint that is used to seal the non-cross-linking refractory polyethylene end socket of pipe end metal frame, is made of non-cross-linking refractory polyethylene inner plastic that the hot melt switching performance is arranged and reinforced plastic skin, multiple tube and multiple tube are connected and form pipe network by strengthening composite tube joint.The reinforced plastic skin can be made up of plastics and glass fibre blend.The reinforced plastic skin that strengthens composite tube joint can be made up of polyamide and continuous glass-fiber or short glass fiber blend, or form by ABS resin and continuous glass-fiber or short glass fiber blend, or form by polycarbonate (PC) and continuous glass-fiber or short glass fiber blend, or form by polyphenylene sulfide and continuous glass-fiber or short glass fiber blend, the continuous glass-fiber that adds in the reinforced plastic skin of enhancing composite tube joint or the amount of short glass fiber are 10%～50%, and glass fibre is through coupling agent treatment.Glass fibre makes glass fibre and plastics that more firm adhesive strength be arranged through coupling agent treatment, can effectively prevent the outer cracking of reinforced plastic and increase plastic outer layer intensity.The utility model strengthens the technological scheme of bluk recombination with non-cross-linking refractory polyethylene (PE-RT) and metal frame, particularly in heatproof and hot strength and environmental stress cracking resistance raising, overcoming the tubing skeleton introduces stress easily and causes better performance is arranged on the composite plastic pipe problem easy to crack in plastic tube wall, plastic composition pipeline with the non-crosslinked heatproof has good environmental stress cracking resistance for this reason, just can obtain the pure plastic pipe of reporting than former with this non-cross-linking refractory polyethylene material and metal frame manufacturing multiple tube, aluminium-plastic composite pipe and steel-plastic composite pipe all have better low temperature resistant, high temperature, the environment stress cracking performance.The utility model has used the enhancing composite tube joint in hot water pipe net, strengthen the electrical heating wire that the wall that the inner plastic joint socket of hot melt switching performance is arranged in the composite tube joint circumferentially is laid with spiral ring, can strengthen composite tubing electric heating hot melt with Steel Skeleton easily is connected, connect reliable, thermoplastic is made the skin of pipe coupling after particularly thermoplastic engineering plastic and glass fibre blending and modifying strengthen, its intensity can reach 100～180MPa, because its thickness is twice above than the steel plate thickness that the Steel Skeleton that uses in the past strengthens in the composite pipe fitting, its working strength can reach Steel Skeleton fully and strengthen the working strength of composite pipe fitting even higher, (the equal piercing of steel plate in the Steel Skeleton enhancing composite pipe fitting that uses in the past forms, its reduction in strength at least 30%), thus the utility model a kind of bearing capacity height is provided in hot water pipe net, easy to manufacture, cost of production is low, easy to connect reliable with tubing, be particularly suitable for the enhancing composite tube joint that hot water pipe net uses.The utility model pipe network can substitute the pipe network that present widely used steel pipe adds thermal insulation layer and protective layer fully; the shortcoming of overcome that the steel duct burn into gets rusty, the life-span is short becomes a kind of jointing place mechanical strength height, bearing capacity height, does not have leakages, pipeline long service life, is particularly suitable for the new type of metal skeleton reinforced plastic composite pipe network of the chemical mediator conveying of hot water and higher temperature.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, be coated with in the metal framework reinforced plastic composite pipe tube wall continuum roll welding by pertusate steel plate or the broadwise steel wire twine the welding of warp-wise steel wire or spiral twines or the tubular metal enhancing body skeleton of the web frame with holes that braided steel wire forms.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, the non-cross-linking refractory polyethylene material is made is used to seal the inner layer sleeve of the end socket of pipe end metal frame for the band boss, in the inner layer sleeve at least excircle be connected with the inner plastic fusion of metal skeleton reinforced composite plastic pipeline end.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, strengthen at least one end of composite tube joint non-cross-linking refractory polyethylene internal layer the joint socket that is connected usefulness with metal skeleton reinforced composite plastic pipeline is arranged, the joint socket wall circumferentially is laid with the electrical heating wire of spiral ring, the wiring terminal that electrical heating wire radially and/or is axially arranged of internal layer, the plastic outer layer of enhancing composite tube joint and metal skeleton reinforced composite plastic pipeline end and the boss outer peripheral surface fusion of inner layer sleeve connect as one the plastic outer layer of metal skeleton reinforced composite plastic pipeline termination and inner plastic and the complete fusion coating of pipeline end face.By hot melting way or the molten mode of electric heating the excircle of inner layer sleeve and the inner plastic fusion of metal skeleton reinforced composite plastic pipeline end are coupled together, to strengthen the plastic outer layer of composite tube joint and metal skeleton reinforced composite plastic pipeline end by the molten mode of hot melting way or electric heating again and the boss outer peripheral surface fusion of inner layer sleeve couples together, make enhancing composite tube joint and inner layer sleeve fusion connect as one and form an annular U type joint socket, the annular U type joint socket is with plastic outer layer and the inner plastic and the complete fusion coating of pipeline end face of metal skeleton reinforced composite plastic pipeline termination, multiple tube and multiple tube are connected to form pipe network by pipe joint, inner layer sleeve and enhancing composite tube joint are with plastic outer layer and the inner plastic and the fully closely coating of pipeline end face of metal skeleton reinforced composite plastic pipeline termination, improved the joint mechanical strength widely, prevented that effectively fluid from sealing in metal frame it is corroded, be connected firmly, reliably, do not have to leak, guaranteed pipeline working life.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, the reinforced plastic skin that strengthens composite tube joint is made up of polyamide and continuous glass-fiber or short glass fiber blend, or form by ABS resin and continuous glass-fiber or short glass fiber blend, or form, or form by polyphenylene sulfide and continuous glass-fiber or short glass fiber blend by polycarbonate (PC) and continuous glass-fiber or short glass fiber blend.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, the continuous glass-fiber that adds in the reinforced plastic skin that strengthens composite tube joint or the amount of short glass fiber are 10%～50%, glass fibre is through coupling agent treatment.Glass fibre makes glass fibre and plastics that more firm adhesive strength be arranged through coupling agent treatment, can effectively prevent the outer cracking of reinforced plastic and increase plastic outer layer intensity.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, the reinforced plastic skin that strengthens in the composite tube joint will have the full coating of non-cross-linking refractory polyethylene inner plastic or the part of hot melt switching performance to coat.When manufacturing, can make the inner plastic of charged heating wire earlier, again through two-shot process at internal layer appearance moulding reinforced plastic skin, also can be conversely, make the reinforced plastic skin earlier, again through the inner plastic of two-shot process at outer inner chamber forming belt electrical heating wire, adopt full coating mode, help making the enhancing composite tube joint that internal layer has axial wiring terminal, and adopt local the coating, then helping internal layer has the manufacturing of the enhancing composite tube joint of wiring terminal radially and installs and uses.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid, strengthening the composite tube joint internal layer is non-crosslinked refractory polyethylene and the elastomeric blend of plastic, rubber.The non-cross-linking refractory polyethylene reinforced plastic skin that strengthens in the composite tube joint is a polar material, and inner plastic is a non-polar material, firmly be not closely as one between the two, therefore the reinforced plastic skin has played increase pipe coupling radial crushing strength, guaranteed the bearing capacity of pipe coupling, and in inner plastic, add some rubber, make inner plastic become a kind of elastomer, can a spot of mutual slip between reinforced plastic skin and the inner plastic, these characteristics are in the design of hot water pipe net, install, have an enormous advantage in the use, when carrying hot fluid, make and strengthen the effect that composite tube joint plays a kind of slip joint, although each pipe coupling extending amount is very little, but the pipe coupling of using in pipe network numerous (almost 9 meter amperes are adorned at interval), the extending amount of overall pipe network is enough, this makes the design of hot water pipe net, reduced in a large number in the installation and taken a lot of work, take the flexible well of material, reduced engineering cost.

Above-mentioned metallic framework reinforced plastic composite pipe network for hot fluid has polyurethane foam to protect thermal insulation layer in metal skeleton reinforced composite plastic pipeline and the appearance that strengthens composite tube joint.

The annular U type joint socket that the utility model inner layer sleeve and enhancing composite tube joint form is with plastic outer layer and the inner plastic and complete tight coating of pipeline end face of metal skeleton reinforced composite plastic pipeline termination, be connected firmly, reliably, do not have and leak, joint mechanical strength height, and prevented that fluid from sealing in metal frame it is corroded, the pipeline long service life is the metallic framework reinforced plastic composite pipe network for hot fluid that a kind of novel chemical mediator that is particularly suitable for hot water and higher temperature is carried.

Description of drawings:

Fig. 1 is the utility model metallic framework reinforced plastic composite pipe network for hot fluid schematic representation.

Fig. 2 is an inner layer sleeve structure enlarged diagram among Fig. 1.

Fig. 3 strengthens composite tube joint structure enlarged diagram among Fig. 1.

Fig. 4 is another schematic representation of the utility model metallic framework reinforced plastic composite pipe network for hot fluid.

Fig. 5 is for strengthening another structure enlarged diagram of composite tube joint.

Fig. 6 is that threeway strengthens the composite tube joint structural representation in the utility model composite pipe network.

Embodiment:

Embodiment 1:

Fig. 1～Fig. 3 has provided present embodiment 1 figure.Present embodiment 1 is a material inner layer sleeve 2 (as shown in Figure 2) of at first using non-cross-linking refractory polyethylene.Boss 19 is arranged in the inner layer sleeve 2, outer peripheral surface is provided with electric heating wire 4, by the molten mode of wiring terminal electric heating the outer peripheral surface of inner layer sleeve and inner plastic 8 fusions of metal skeleton reinforced composite plastic pipeline 1 end are coupled together, boss 19 external diameters are identical with multiple tube 1 external diameter.At the straight-through internal layer 13 that reinforced plastic outer 14 is arranged in the composite tube joint 3 (as shown in Figure 3) and the hot melt switching performance is arranged that strengthens, have 17, two electrical heating wires 17 of electrical heating wire of being embedded in the circumferential spiral ring of inner plastic 13 port inner walls with mode radially draw respectively with inner plastic on two positive poles be connected with negative terminal 18.Inner plastic 13 materials are non-cross-linking refractory polyethylene (PE-RT), outer 14 materials of reinforced plastic are polyamide (PA6) 15 and continuous glass-fiber 16 blending and modifying reinforced plastic, continuous glass-fiber content is 30%, and glass fibre carries out after the surface-active-treatment and polyamide (PA6) blend with coupling agent again.Reinforced plastic skin 14 will have inner plastic 13 local coatings of hot melt switching performance, helping internal layer has the manufacturing of the enhancing composite tube joint of wiring terminal radially and installs and uses, and makes to strengthen composite tube joint and become the good pipe joint of heat-resisting withstand voltage properties.With wiring terminal 18 energisings, by the molten mode of electric heating the two logical composite tube joints 3 that strengthen are coupled together with the plastic outer layer 6 of metal skeleton reinforced composite plastic pipeline 1 end and the boss 19 outer peripheral surface fusions of inner layer sleeve, make enhancing composite tube joint and inner layer sleeve fusion connect as one and form an annular U type joint socket 5, annular U type joint socket 5 is with plastic outer layer 6 and the inner plastic 8 and the complete fusion coating of pipeline end face of metal skeleton reinforced composite plastic pipeline 1 termination, there is the hole pattern steel sheet metal skeleton 7 in the hole with holes that is coated by plastic outer layer 6 and inner plastic 8 (or to twine the warp-wise steel wire and to the tubular metal frame of its point of contact welding fabrication formation in the metal frame composite plastic pipe 1 with the broadwise steel wire, or tubular metal frame left-handed with steel wire and/or that the right hand helix winding forms, or the tubular metal frame that forms with braided steel wire, or with aluminium strip vertically butt joint or overlap joint and the tubular metal frame that forms through welding fabrication).The plastic outer layer 6 of metal skeleton reinforced composite plastic pipeline 1 and inner plastic 8 are used the material of non-cross-linking refractory polyethylene (PE-RT) respectively, and multiple tube 1 adopts the electric heating wire heating and melting to connect as one the formation pipe network with multiple tube 1 by strengthening composite tube joint 3.Because annular U type joint socket 5 is with plastic outer layer and the inner plastic and the fully closely coating of pipeline end face of metal skeleton reinforced composite plastic pipeline termination, be connected firmly, reliably, do not have and leak, joint mechanical strength height, and prevented that fluid from sealing in metal frame it is corroded, made the utility model pipe network become the metal framework reinforced plastic composite pipe network that a kind of novel chemical mediator that is particularly suitable for hot water and higher temperature is carried.Appearance at metal skeleton reinforced composite plastic pipeline 1 and enhancing composite tube joint 3 is all protected with polyurethane foam thermal insulation layer 9 and 11; insulating foam layer can be extruded compound (comprising matter password protection sheath) at its outer surface when making multiple tube 1, also can coat insulating foam layer separately to each the root multiple tube 1 behind the cutting section.At insulating foam layer appearance matcoveredn 10 and 12, protective layer can add glue with glass cloth, also available reflective adhesive tape.Water-tight glue 20 is arranged between the insulating foam layer 9 and 11.

Embodiment 2:

Fig. 4 has provided the utility model embodiment 2 figure.Present embodiment 2 fundamental sum embodiments 1 together.Do not exist together is not have electric heating wire in the inner layer sleeve 2, by hot melting way inner layer sleeve 2 and metal skeleton reinforced composite plastic pipeline 1 fusion are coupled together, inner layer sleeve 2, strengthen annular U type joint socket 5 that composite tube joint 3 forms the plastic outer layer 6 of metal skeleton reinforced composite plastic pipeline termination and inner plastic 8 and pipeline end face are coated fully, outer 14 materials of reinforced plastic that strengthen composite tube joint 3 are ABS resin 22 and short glass fiber 21 blending and modifying reinforced plastic, and short glass fiber content is 50%.Reinforced plastic skin 4 will have inner plastic 13 local coatings of hot melt switching performance, the rubber that contains 5% (or 40%) in the inner plastic 13, add some rubber, make inner plastic become a kind of elastomer, when carrying hot fluid, make to strengthen the effect that composite tube joint plays a kind of slip joint.

Embodiment 3:

Fig. 5 has provided the utility model embodiment 3 figure.Present embodiment 3 fundamental sum embodiments 1 together.Not existing together is that present embodiment 3 reinforced plastic skins 14 will have the inner plastic 13 of hot melt switching performance all to coat, and plastic outer layer 14 materials are polycarbonate (PC) (PC) 23 and short glass fiber 21 blending and modifying reinforced plastic, and short glass fiber content is 10%.Electrical heating wire 17 is drawn with the axial wiring terminal 24 of positive and negative electrode on the internal layer in axial mode and is connected.

Embodiment 4:

Fig. 6 has provided the utility model embodiment 4 figure.Present embodiment 4 fundamental sum embodiments 1 together.Not existing together is that enhancing composite tube joint in present embodiment 4 metallic framework reinforced plastic composite pipe network for hot fluid is shaped as the three-way pipeline joint structure,

The various embodiments described above are that foregoing of the present utility model is further described, but this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to the foregoing description.All technology that realizes based on foregoing all belong to scope of the present utility model.

Claims (6)

1, metallic framework reinforced plastic composite pipe network for hot fluid, it is characterized in that including the metal skeleton reinforced composite plastic pipeline of non-cross-linking refractory polyethylene plastic outer layer and non-cross-linking refractory polyethylene inner plastic, the enhancing composite tube joint that is used to seal the non-cross-linking refractory polyethylene end socket of pipe end metal frame, is made of non-cross-linking refractory polyethylene inner plastic and reinforced plastic skin, multiple tube and multiple tube are connected and form pipe network by strengthening composite tube joint.

2, metallic framework reinforced plastic composite pipe network for hot fluid according to claim 1, it is characterized in that being coated with in the metal skeleton reinforced composite plastic pipeline tube wall continuum roll welding by pertusate steel plate or the broadwise steel wire twine the welding of warp-wise steel wire or spiral twines or the tubular metal enhancing body skeleton of the web frame with holes that braided steel wire forms.

3, metallic framework reinforced plastic composite pipe network for hot fluid according to claim 1 and 2, it is characterized in that being used to sealing the inner layer sleeve of the non-cross-linking refractory polyethylene end socket of pipe end metal frame for the band boss, in the inner layer sleeve at least excircle be connected with the inner plastic fusion of metal skeleton reinforced composite plastic pipeline end.

4, metallic framework reinforced plastic composite pipe network for hot fluid according to claim 3, it is characterized in that strengthening at least one end of non-cross-linking refractory polyethylene inner plastic in the composite tube joint joint socket that is connected usefulness with metal skeleton reinforced composite plastic pipeline is arranged, the joint socket wall circumferentially is laid with the electrical heating wire of spiral ring, the wiring terminal that electrical heating wire radially and/or is axially arranged of non-cross-linking refractory polyethylene inner plastic, the non-cross-linking refractory polyethylene plastic outer layer of enhancing composite tube joint and metal skeleton reinforced composite plastic pipeline end and the boss outer peripheral surface fusion of inner layer sleeve connect as one the plastic outer layer of metal skeleton reinforced composite plastic pipeline termination and inner plastic and the complete fusion coating of pipeline end face.

5, metallic framework reinforced plastic composite pipe network for hot fluid according to claim 1 and 2, the reinforced plastic skin that it is characterized in that strengthening in the composite tube joint coats full coating of non-cross-linking refractory polyethylene inner plastic or part.

6, metallic framework reinforced plastic composite pipe network for hot fluid according to claim 1 and 2 is characterized in that in the appearance of metal skeleton reinforced composite plastic pipeline and enhancing composite tube joint the polyurethane foam thermal insulation layer being arranged respectively.

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