CN205689925U - Impervious, heat-resisting, anticorrosion pipe-line system - Google Patents

Abstract

This utility model is impervious, heat-resisting, anticorrosion pipe-line system, belongs to composite pipeline system, steel-plastics composite pipe, including interior, in, outer three layers, internal layer is polyethylene (PE Xc) pipe using crosslinking with radiation technique to produce, and outer layer is thin-wall steel tube, and ectonexine utilizes melt viscosity to be combined；Outer tube spiral shell button is set in pipe joint main body, and locking nut cooperatively forms couple.The suit tube head outer surface extended from main body spiral shell buckle is cone seal platform, being set in after composite pipes enlarging in this sealing station, locking nut is placed on multiple tube, buckle by the main body spiral shell that is threaded in of its inner surface, make the interior tight platform of male cone (strobilus masculinus) tube-lik lock extended from its end of thread be pressed on multiple tube formation to be tightly connected.Combine by means of the steel-plastics composite pipe improved and special pipe connection and form pipe-line system, there is the effect keeping pressure antiseepage for a long time, and possess easy construction and be imbued with ornamental aesthetic feeling.

Description

Impervious, heat-resisting, anticorrosion pipe-line system

Technical field

This utility model belongs to composite pipeline system, relate to steel-plastics composite pipe, Special connecting device and consisting of anti- Ooze, heat-resisting, corrosion resistant pipe-line system.

Background technology

Be applied at present in residential building building to, drainage pipeline, caliduct, natural gas line, building fire-fighting pipeline, sky The tubing in pipeline, factory's anticorrosion, anti-leakage pipe special is adjusted mainly to have five kinds.The first is galvanized iron conduit, and this pipe makes electricity consumption Plating chemical method is at the plated surface last layer zinc of ferrum to reach antirust purpose, and intensity is high, is hardly damaged；But use for a long time, pipe Interior meeting, because the existence of hydrops and oxygen is got rusty, is unfavorable for water cleaning；The additionally commonly used welding fabrication of tubing, in pipeline Welding residual easily causes secondary pollution, and welding position antiseptic property is relatively low, complicated construction technique, modular repair difficulty.Second Planting is stainless steel tube, and intensity is high, has excellent anti-corrosion property, but relatively costly, unavoidably by sealing material feed ring, thus, The pipe leakage that material aging and thermal expansion contracting cause almost becomes the persistent ailment of this pipe.The third is conventional aluminium plastic composite, It is a kind of multiple structure tubing, and inside and outside two-layer is plastic layer, and centre is aluminium alloy layer, and metal level and plastic layer pass through hot melt Binding agent bonds；This tubing intensity is high, flexible, but after long-time use, metal can be layered with plastics, makes tubing intensity decline； During in particular as hot-water line, lamination is more serious, and the phenomenon of pipe fitting connecting portion seepage is commonplace.It addition, this is combined The defect do not avoided of pipe be the preferable pipe joint structure of neither one to solve pipe-line system be connected firmly and pipeline leakage is asked Topic, especially during multiple tube experience variations in temperature.4th kind is the plastic tube of PP-R type, including PE-X, such Tubing uses resin granular material to use hot-melt adhesive paste by thermal deformation extrusion molding tubing, tubing, and ageing resistance is poor, uses the longevity Order short.5th kind is PE-Xc: the new processing technique using polyethylene from high pressure process series tubing, by high density polyethylene (HDPE) molding Tubing, after high-energy ray irradiation, makes polyethylene macromolecular main chain form new free radical, in conjunction with i.e. forming friendship between free radical Connection, molecular structure is changed into 3 D stereo network structure from linear arrangement, thus is improved the serviceability of polyethylene tube.This friendship Linked method greatly strengthen every mechanical property of plastic pipe, and the chemical index of cross-linked structure is the most highly stable.But it has one Individual feature, the crosslinking degree of product formation, the epidermis degree of cross linking is high, and along with the degree of depth increases, the degree of cross linking is more and more lower.So, at present Within PE-Xc pipe thickness on market can only accomplish 5mm, it is impossible to adapt to the needs of heavy caliber pipe.

The physicochemical properties such as PE-Xc tubing is heat-resisting, wear-resisting, acid/alkali-corrosion-resistant are very notable, and domestic and international producer actively researches and develops, opens up Open up its application scheme, and utilize complex technique to carry out positive discussion.CN 102434726 B disclose a kind of by PE-Xc pipe and The tubing that polyolefin pipe is compound；CN205118569U discloses a kind of in the outer skill being wound around PE-Xc band or suit PE-Xc pipe of PE pipe Art scheme.Although improving to some extent to improving heatproof, fire prevention and the series of problems such as antirust, but for initiation life length, high sealing, High intensity, easy care, the high-grade tubing that is imbued with decorative aesthetics also have gap.

Summary of the invention

The purpose of this utility model is to provide a kind of impervious, heat-resisting, antiseptical pipe-line system.This utility model is by means of changing The steel-plastics composite pipe entered and special pipe connection combine and form pipe-line system, have the effect keeping pressure antiseepage for a long time Really, and possess easy construction and be imbued with ornamental aesthetic feeling.

The technical solution of the utility model is: a kind of thin-wall stainless steel and the multiple tube of strengthening PE plastics, structure includes Rustless steel outer layer, PE inner plastic and the adhesive layer of centre, it is critical only that:

A, stainless steel tube use the sheet material of thickness h 1=0.15-0.95mm, are welded into type by laser synchronization volume；

B, strengthening PE use high density polyethylene pipe to process through 60Coradiation, irradiation intensity is not less than 120KGy, wall thickness h2= 5～12h1；

C, the internal diameter of multiple tube are (the h1+ h2) of 8～10 times.

The material that further adhesive layer uses is steel plastic compount resin glue.

Further, the wall thickness of described radiant crosslinked polyethylene pipe is 5-10 times of thin-wall steel tube wall thickness.

This steel-plastics composite pipe, including interior, in, outer three layers, interior hdpe layer (PE-Xc) pipe is at 60Coradiation Reason, irradiation intensity is not less than 120KGy.When being applied to heavy caliber pipe, needing to select thicker PE-XC, in pipe can be used The two-sided irradiance method that rod, pipe outer ring combine, increases the irradiation degree of depth, to reach the higher degree of cross linking.Outer layer is rustless steel Pipe, mechanical strength is high, additionally needs to connect by special joint because of this multiple tube, need to expand tapered by multiple tube termination during connection Mouthful, it is desirable to having preferable plasticity and ductility, so using thin-wall steel tube, wall thickness control is between 0.15-0.95mm so that it is There is higher rigidity and plasticity, excellent in mechanical performance, and weight and cost can be reduced.Ectonexine utilizes curable melt viscosity It is combined, forms glue and connect cushion, and thermosetting resin softening point temperature is more than 120 DEG C, high temperature resistant, it is heated and does not softens； The anti-characteristic of expanding with heat and contract with cold that and PE-XC itself low in conjunction with the steel pipe coefficient of expansion is superior, the inside and outside layer deformation that variations in temperature causes is micro- Little, lamination can be prevented effectively from.

The attachment means of a kind of multiple tube, at least provided with compound with thin-wall stainless steel and strengthening PE plastics in structure The pipe joint of pipe docking, it is critical only that: the structure of this pipe joint includes the interior cylinder cylindrical platform being positioned on pipe joint body The suit tube head of shape and supporting be positioned at the locking nut of tubular in interior male cone (strobilus masculinus) that main body spiral shell is buckled, is set with tube head male cone (strobilus masculinus) The inclined angle alpha angle span coordinating inner conical surface of angle of inclination beta angle and locking nut is 1.5～3.8 °, is set with tube head simultaneously The angle of cut γ angle of truncated cone-shaped male cone (strobilus masculinus) bus and locking nut inner conical surface bus be not more than 2.5 °.

Further, the height G1=25 mm-of the suit tube head of the interior cylinder cylindrical platform shape being positioned on pipe joint body 35mm, termination external diameter are less than the internal diameter 0.2～0.5mm of multiple tube, termination wall thickness h3=1～1.5mm.

Further, supporting tubular in the interior male cone (strobilus masculinus) height G2=18 mm-22 being positioned in locking nut main body Mm, termination internal diameter is more than the external diameter 0.1～0.3mm of multiple tube, termination wall thickness h4=1.8～2.2mm.

Outer tube spiral shell button is set on pipe joint body, and locking nut cooperatively forms couple.Extend from main body spiral shell buckle Suit tube head outer surface is cone seal platform, is set in this sealing station after composite pipes enlarging, locking nut is placed on multiple tube, The main body spiral shell that is threaded in by its inner surface is buckled, is made the interior tight platform of male cone (strobilus masculinus) tube-lik lock extended from its end of thread compress Multiple tube is formed and is tightly connected.The radial dimension of suit tube head and locking nut need to mate with multiple tube size, and height is wanted Ensureing to connect reliably, the selection of wall thickness should consider that bonding strength it is also contemplated that its economy.

Further, the truncated cone-shaped male cone (strobilus masculinus) of suit tube head is machined with 1-3 road helixseal groove；This helixseal Groove groove width 0.8-1.2mm, the groove center degree of depth are 0.2-1.2mm.

Wherein, the inclined angle alpha angle coordinating inner conical surface of encasement tube joint male cone (strobilus masculinus) angle of inclination beta angle and locking nut all exists In the range of 1.5～3.8 °, selected angle is for realizing locking nut inner conical surface and be set with tube head sealing station male cone (strobilus masculinus) certainly The friction fit angle of my locking, it is possible to being greatly simplified in construction sealing the complexity that key element adjusts, effective guarantee is compound Antiseep requirement at pipe joint.The normalised enlarging of multiple tube port is not only close from realizing high-quality with damaging after processing Envelope connects, and can ensure to install the tensile strength at locking rear port and sealing high standard.Meanwhile, the value at α and β angle is also Unequal, the cooperation face that will meet suit tube head and locking nut forms interior narrow outer wide fit clearance.The round platform of suit tube head Shape male cone (strobilus masculinus) bus is not more than 2.5 °, along with the precession of locking nut, in it with the γ angle that intersects of locking nut inner conical surface bus The conical surface is for being set with the most compensatory movement of truncated cone-shaped male cone (strobilus masculinus) of tube head, and the spacing between two conical surfaces reduces, to multiple The tube wall pressure closing enlargement of pipe section gradually transmits to bigger diameter end from miner diameter end so that the bigger PE-Xc plastics of flared section plasticity to Stage casing is rolled.Locking nut compresses while putting in place, and on the one hand PE-Xc manages elastic deformation under the effect of the pressure, portion of material Wriggle to little local of pressure, finally flow in helixseal groove, and in flaring process bigger diameter end wall thickness is thinning, miner diameter end Wall thickness is relatively large, and in calender line, material is wriggled to bigger diameter end from miner diameter end, forms thick middle both sides between thin Cydariform deformation, drum surface holds out against between suit tube head and locking nut, strongly anti-pulling；On the other hand the compacted of PE-XC pipe is utilized Become memory effect, there is after composite pipes enlarging the power inwardly holding suit tube head tightly, make junction form friction latch surfaces, there is face Type extruding force, anti-pulling, it is ensured that do not leak for a long time.

In order to further enhance the reliability of connection, buckling the front end of locking nut at main body spiral shell, supporting to be provided with locking standby Female.

Impervious, heat-resisting, the construction method of corrosion resistant pipe-line system, including the preprocessing of Compound pipe port, and will process Compound pipe be positioned in attachment means, it is critical only that this method comprises the following steps:

A, the pipe pressure, flow, nominal size selection thin-wall stainless steel and the strengthening that are given according to pipe-line system structural design drawing Model that the multiple tube of PE plastics is corresponding and length, the section of being cutting into is stand-by；

The attachment means that B, selection and above-mentioned Compound pipe are supporting；

C, by taper mouth of pipe tube expander by Compound pipe one end expand tapered mouth；The inner cone that the flared section of multiple tube is formed The cone-apex angle of the suit tube head male cone (strobilus masculinus) in the attachment means of face drift angle and multiple tube matches, flared section effectively assemble length It is 18 mm-22 mm；

D, enlarging is combined on the suit tube head that pipe end is enclosed within the attachment means of multiple tube, will be enclosed within Compound pipe Supporting locking nut screwing, pressurize, lock flared section；

E, the Compound pipe other end revise Compound pipe length after being inserted in another locking nut；

F, repeat C, D two step formed with the line segments of pipe joint.

Further, the correction Compound pipe length described in step E includes:

A, according to drawing requirement actual measure Compound pipe one end location after system segment, by the part beyond design size Clip, then enlarging operation；

B, according to drawing requirement actual measure Compound pipe one end location after system segment length, according to beyond design size Numerical value reduce next section and get the raw materials ready Compound pipe length.

The beneficial effects of the utility model are: formed after 1, the radiant crosslinked polyethylene pipe of internal layer is stronger radiation treatment , it is physical crosslinking, does not appoint chemical cross-linking agent and catalyst to add, thus without in use there being low molecular composition Separate out, meet strict sanitary standard, conveyance fluid will not be produced and pollute, meet safe water and food security standard, can For supplying water and eating thing processing pipeline；This pipe is through tube extruding machine extrusion molding, and air-tightness is good, inner wall smooth, can effectively reduce resistance Power, is difficult to mineral dirt and is formed；High-low temperature resistant (-70 DEG C-110 DEG C) performance utilizing radiant crosslinked polyethylene is remarkable, corrosion-resistant Property good, can be used for carrying cold hot water piping, natural gas and chemical substance；Additionally radiant crosslinked polyethylene pipe has creep memory effect Should, after shape changes, it is possible to be reduced to original state, under matching with pipe joint of the present utility model, Ke Yi Form fabulous face type sealant between PE-Xc internal face and suit tube head contact surface, stand to test for a long time, be greatly promoted Pipeline anti-leakage performance.2, PE-Xc is combined by curable PUR with thin-wall steel tube, well extends in conjunction with stainless-steel pipe The characteristic such as property, antirust, anticorrosion, aging resistance, is greatly improved the application life of PE-Xc.3, on suit tube head, it is provided with spiral close Sealing groove, the compacted rear inwall of multiple tube deforms in being pressed into helixseal groove and plays sealing function so that whole pipeline group Part has good sealing；The standby mother of locking can effectively prevent whole assembly from installing loosening of rear locking nut, it is ensured that Multiple tube connect after reliability.4, this reinforced high pressure polyethylene composite pipe, inside and outside two-layer, internal layer is for using at radiation The tubes of material of reason, outer layer is thin-wall stainless steel material, and ectonexine utilizes melt viscosity to be combined, and forms outstanding extension characteristics With preferable deformation intensity and long stability, it is connected with this pipe joint, uses enlarging docking, the self-locking of compression type Face seal, has high sealing reliability, it is adaptable in hot water, gas tubing, and has higher intensity, excellent anti-ageing Change, fire prevention, anticorrosion, anti-leakage, decoration performance.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model steel-plastics composite pipe pipe-line system；

Fig. 2 is the structural representation of multiple tube；

Fig. 3 is the structural representation of locking nut；

Fig. 4 is the structural representation of pipe joint；

Fig. 5 is pipe joint and the structural representation of locking nut cooperation；

In accompanying drawing, 1 represents inner plastic, and 2 represent rustless steel outer layer, and 3 represent adhesive layer, and h1 represents stainless steel tube wall thickness, H2 represents PE-Xc thickness of pipe wall, and 4 represent pipe joint body, and 4-1 represents suit tube head, and G1 represents the height of suit tube head, and h3 represents The termination wall thickness of suit tube head, 4-1-1 represents helixseal groove, and 4-2 represents locking nut, and G2 represents in locking nut main body Tubular height, h4 represents tubular you head wall thickness, and 4-3 represents main body spiral shell button.

Detailed description of the invention

A kind of thin-wall stainless steel and the multiple tube of strengthening PE plastics, structure includes rustless steel outer layer 2, PE inner plastic 1 And the adhesive layer 3 of centre, wherein:

A, stainless steel tube use the sheet material of thickness h 1=0.2mm, are welded into type by laser synchronization volume；

B, strengthening PE use high density polyethylene pipe to process through 60Coradiation, irradiation intensity is not less than 120KGy, wall thickness h2= 2mm；

C, the internal diameter of multiple tube are 22mm.

The material that adhesive layer 3 uses is steel plastic compount resin glue.

The attachment means of multiple tube, at least provided with a pipe joint docked with multiple tube, wraps in the structure of this pipe joint Include the suit tube head 4-1 of the interior cylinder cylindrical platform shape being positioned on pipe joint body 4 and supporting be positioned on main body spiral shell button 4-3 The locking nut 4-2 of tubular in interior male cone (strobilus masculinus), suit tube head 4-1 male cone (strobilus masculinus) angle of inclination beta angle is 3.5 degree, locking nut 4-2's The inclined angle alpha angle coordinating inner conical surface is 2 °, is set with truncated cone-shaped male cone (strobilus masculinus) bus and the locking nut 4-2 inner cone of tube head 4-1 simultaneously The intersection γ angle of face bus is 1.5 degree.It is each that pipe joint can need to be set to unidirectional, two-way (two lead to), threeway etc. according to installation Plant structure.

Outside suit the height G1=25mm of tube head 4-1, the termination of the interior cylinder cylindrical platform shape being positioned on pipe joint body 4 Footpath is less than the internal diameter 0.3mm of multiple tube, termination wall thickness h3=1.2mm

Supporting tubular in the interior male cone (strobilus masculinus) height G2=18 mm being positioned in locking nut 4-2 main body, termination internal diameter More than the external diameter 0.2mm, termination wall thickness h4=2mm that state multiple tube.

The truncated cone-shaped male cone (strobilus masculinus) of suit tube head 4-1 is provided with helixseal groove 4-1-1, in groove width 0.8-1.2mm, groove The heart degree of depth is 0.2-1.2mm.The multiple tube of corresponding internal diameter 22mm above, arranges 3 roads, groove width 0.8, groove depth 0.3mm.Seal groove Effect is that its clamp pressure can be transferred on the PE-Xc inner surface of pipe end after coupling union is locked so that it is deformation is also It is partially submerged into this groove, so that sealing effectiveness and resistance to tension are substantially improved.

In order to make connection the most reliable, it is also possible to arrange locking the front end of main body spiral shell button 4-3 upper locking nut 4-2 is supporting Standby female.

During Specific construction, comprise the following steps:

It is thin that A, the pipe pressure be given according to pipe-line system structural design drawing, flow, nominal size select described in claim 1 The model corresponding to multiple tube of wall rustless steel and strengthening PE plastics and length, the section of being cutting into is stand-by；

The attachment means that B, selection and above-mentioned Compound pipe are supporting；

C, by taper mouth of pipe tube expander by Compound pipe one end expand tapered mouth；The inner cone that the flared section of multiple tube is formed Face drift angle and the cone-apex angle of the suit tube head 4-1 male cone (strobilus masculinus) in the attachment means of multiple tube match, effective assembling of flared section A length of 20mm；

D, enlarging is combined on the suit tube head 4-1 that pipe end is enclosed within the attachment means of multiple tube, Compound pipe will be enclosed within On supporting locking nut 4-2 tighten, pressurize, lock flared section, on-demand install locking tapered sleeve 5 additional；

E, the Compound pipe other end revise Compound pipe length after being inserted in another locking nut 4-2；

F, repeat C, D two step formed with the line segments of pipe joint.

Correction Compound pipe length described in step E includes:

A, according to drawing requirement actual measure Compound pipe one end location after system segment, by the part beyond design size Clip, then enlarging operation；

B, according to drawing requirement actual measure Compound pipe one end location after system segment length, according to beyond design size Numerical value reduce next section and get the raw materials ready Compound pipe length.

This pipe-line system has the heat-resisting cold tolerance of brilliance, can use, winter within the temperature range of-40-120 degree Will not bursting by freezing, easy construction, service life was long, up to 50 years.It is mainly used in floor panel heating, cold and hot water supply system, pure defeated Water system, solar water heating system, gas conveying system and the conveying of various chemical fluid.

Claims (8)

1. thin-wall stainless steel and a multiple tube for strengthening PE plastics, structure includes rustless steel outer layer (2), PE inner plastic And the adhesive layer (3) of centre (1), it is characterised in that:

A, stainless steel tube use the sheet material of thickness h 1=0.15-0.95mm, are welded into type by laser synchronization volume；

B, strengthening PE use high density polyethylene pipe to process through 60Coradiation, irradiation intensity not less than 120KGy, wall thickness h2=5～ 12h1；

C, the internal diameter of multiple tube are (the h1+ h2) of 8～10 times.

Thin-wall stainless steel and the multiple tube of strengthening PE plastics the most according to claim 1, it is characterised in that: adhesive layer (3) makes Material be steel plastic compount resin glue.

Thin-wall stainless steel and the multiple tube of strengthening PE plastics the most according to claim 1, it is characterised in that: described crosslinking with radiation The wall thickness of polyethylene tube (1) is 5-10 times of thin-wall steel tube (2) wall thickness.

4. an attachment means for multiple tube, in structure at least provided with one with the thin-wall stainless steel described in claim 1 and strong Change the pipe joint of the multiple tube docking of PE plastics, it is characterised in that: the structure of this pipe joint includes being positioned at pipe joint body (4) the suit tube head (4-1) of the interior cylinder cylindrical platform shape on and supporting be positioned at main body spiral shell buckle on (4-3) in interior male cone (strobilus masculinus) pipe The cooperation inner conical surface of the locking nut (4-2) of shape platform, suit tube head (4-1) male cone (strobilus masculinus) angle of inclination beta angle and locking nut (4-2) Inclined angle alpha angle span is 1.5～3.8 °, is set with truncated cone-shaped male cone (strobilus masculinus) bus and the locking nut of tube head (4-1) simultaneously (4-2) angle of cut γ angle of inner conical surface bus is not more than 2.5 °.

The attachment means of multiple tube the most according to claim 4, it is characterised in that: it is positioned on pipe joint body (4) The height G1=25 mm-35mm of suit tube head (4-1) of interior cylinder cylindrical platform shape, termination external diameter are multiple less than described in claim 1 Close the internal diameter 0.2～0.5mm of pipe, termination wall thickness h3=1～1.5mm.

The attachment means of multiple tube the most according to claim 5, it is characterised in that: supporting it is positioned at locking nut (4-2) Tubular in interior male cone (strobilus masculinus) height G2=18 mm-22 mm in main body, termination internal diameter is more than multiple tube described in claim 1 External diameter 0.1～0.3mm, termination wall thickness h4=1.8～2.2mm.

The attachment means of multiple tube the most according to claim 4, it is characterised in that: in the truncated cone-shaped of suit tube head (4-1) 1-3 road helixseal groove (4-1-1) it is machined with on male cone (strobilus masculinus)；This helixseal groove (4-1-1) groove width 0.8-1.2mm, groove center The degree of depth is 0.2-1.2mm.

The attachment means of multiple tube the most according to claim 4, it is characterised in that: the upper locking of described main body spiral shell button (4-3) The front end of nut (4-2) is supporting is provided with the standby mother of locking.