CN105889700A

CN105889700A - Steel/aluminum rolling composite metal insulating outer casing pipe

Info

Publication number: CN105889700A
Application number: CN201610385614.5A
Authority: CN
Inventors: 刘领诚
Original assignee: SHANGHAI KEHUA THERMAL PIPE SYSTEM Co Ltd
Current assignee: SHANGHAI KEHUA THERMAL PIPE SYSTEM Co Ltd
Priority date: 2016-06-03
Filing date: 2016-06-03
Publication date: 2016-08-24
Anticipated expiration: 2036-06-03
Also published as: CN105889700B

Abstract

The invention discloses a steel/aluminum rolling composite metal insulating outer casing pipe. The steel/aluminum rolling composite metal insulating outer casing pipe is characterized in that an ordinary thin steel plate with the width equal to the width of an aluminum alloy thin plate and the thickness being 0.8 mm-1.8 mm is stacked on the aluminum alloy thin plate with the thickness being 0.2 mm-0.4 mm and subjected to edge folding, crimping, meshing and grinding through a pipe making machine to be rolled into a spiral meshing thin-wall metal casing pipe integrally combined through the aluminum alloy thin plate on the outer layer and the ordinary thin steel plate on the inner layer. Compared with the prior art, the steel/aluminum rolling composite metal insulating outer casing pipe has the beneficial effects of being good in anti-rust performance, not afraid of drenching and solarizing, high in strength, good in rigidity and regular in appearance, is low in manufacturing cost and high in cost performance and is especially suitable for a low-support pipe net, collisions and extrusion can be better borne, the steel/aluminum rolling composite metal insulating outer casing pipe can bear treading of workers and is not likely to deform or crack, and it is ensured that rainwater cannot seep into an insulating layer and additional heat losses caused by seepage of rainwater into the insulating layer are avoided. Compared with a metal casing pipe used for an overhead installed steam pipeline, the steel/aluminum rolling composite metal insulating outer casing pipe is firmer and harder.

Description

A kind of steel/aluminum rolls compound metal heat preservation trocar sheath

Technical field

The present invention relates to steam insulation Manifold technology field, a kind of steel/aluminum rolls compound metal heat preservation trocar sheath.

Background technology

Prefabricated thermal insulation is maked somebody a mere figurehead and is laid jet chimney and have obvious energy-saving effect than the jet chimney that conventional on-site is incubated, and uses Thin metal plate machinery rolls the sleeve pipe of spiral seam and makees heat-net-pipeline shell and make pipe network profile neat, rainproof, is not afraid of Exposure to Sunlight, from The most popular with users from coming out, especially optimal with rustless steel casing property.But rustless steel is expensive, use general steel sheet or plating Though zinc steel plate low price, but easily corrosion, compare aluminium alloy plate relative low price, is not easy to corrosion, blemish in an otherwise perfect thing It is aluminium sheet intensity, ratio of rigidity steel plate difference many, suffers shock, extruding to be easily deformed and even rupture.

The built on stilts steam pipe system that lays of prior art is all on-the-spot heat retaining operation, and heat insulation effect is poor, and pipe network heat loss is high, pipe Net shell is general steel sheet not corrosion resistant, the most aging, leak out, leak, nor attractive in appearance, and stainless steel thin-wall metal canula Although solving the problems referred to above, but expensive, construction costs is high, aluminium alloy plate is antirust, price still can, but rigidity and intensity are relatively Difference, the problems referred to above become the pain spot of heat supply network always.

Summary of the invention

A kind of steel/the aluminum that it is an object of the invention to design for the deficiencies in the prior art rolls outside compound metal heat preservation Sleeve pipe, uses one-time formed pipe rolling technique to make the spiral seam thin-wall metal bushing that steel/aluminum is compound, and set outer tube layer is that aluminum closes Gold thin plate, surface is smooth, attractive in appearance, and rustproof property is good, and internal layer is general steel sheet, has sufficient intensity and rigidity, this steel/aluminum Multiple tube set lays, for built on stilts, the prefabricated steam insulation pipe overcoat that heat supply network is special, and lines are neat, are not afraid of Exposure to Sunlight, will not be aging, Seaming is tight, prevents rain penetration, and cost of manufacture is low, and cost performance is high, than the existing built on stilts metallic sheath laying jet chimney use Guan Yaogeng is solid, more firmly, harder.

The object of the present invention is achieved like this: a kind of steel/aluminum rolls compound metal heat preservation trocar sheath, including aluminium alloy Thin plate and general steel sheet, be characterized in stacking wide with aluminium alloy sheet and that thickness is 0.8 ~ 1.8mm general steel sheet On the aluminium alloy sheet that thickness is 0.2 ~ 0.4mm, through flanging, curling, the seaming of tuber with roll, rolling into outer layer is aluminum Latten and internal layer are the spiral seam thin-wall metal bushing of general steel sheet composite integrated.

The present invention compared with prior art has a good rustproof property, and Keep away from sun, anti-rain, intensity is not higher, rigidity More preferably and the advantage of neat appearance, cost of manufacture is low, cost performance height, is particularly useful for low trestle pipe network, can preferably bear collision, Extruding, the personnel of bearing trample and will not deformation fracture, it is ensured that rainwater will not penetrate into heat-insulation layer and the additional heat waste thus brought Losing, built on stilts to lay the metal canula that jet chimney uses more solid than existing, more firmly, harder.

Accompanying drawing explanation

Fig. 1 is present configuration schematic diagram；

Fig. 2 is the side view of Fig. 1.

Detailed description of the invention

Embodiment 1

Refering to accompanying drawing 1～accompanying drawing 2, the thin-wall metal bushing 3 of the present invention by aluminium alloy sheet 1 and general steel sheet 2 through tuber Roll and form, take aluminium alloy sheet 1 that thickness is 0.25mm and be the common of 0.8mm with aluminium alloy sheet 1 equal in width and thickness Sheet metal 2, overlays general steel sheet 2 level on aluminium alloy plate 1, sends into the feeding mouth of special tuber, through flanging, volume Bent, seaming and rolling, rolls into the thin-wall metal bushing 3 of aluminum/steel composite integrated and spiral seam 4.For the thin-walled rolled Metal canula 3 diameter is less, and the thickness of general steel sheet 2 also can be slightly smaller, when the casing diameter that rolls is bigger, and the thickness of steel plate 2 Degree should be bigger.

Outer layer of the present invention is aluminium alloy plate, and surface smooths, and lines are neat, are not afraid of Exposure to Sunlight, will not be aging, and seaming is tight, can Prevent rain penetration, not corrosion.Set inner tube layer uses general steel sheet, because steel is better than the intensity of aluminum, rigidity, and And steel is more cheap than aluminum, therefore can select thicker sheet metal, have higher cost performance, the sleeve pipe made lays steaming than existing making somebody a mere figurehead The metal canula that steam pipe road uses is more solid, more firmly, harder.

More than simply the present invention is further illustrated, and is not used to limit this patent, all implements for equivalence of the present invention, Within being intended to be limited solely by the right of this patent.

Claims

1. steel/aluminum rolls a compound metal heat preservation trocar sheath, including aluminium alloy sheet and general steel sheet, it is characterised in that Wide with aluminium alloy sheet and that thickness is 0.8 ~ 1.8mm general steel sheet is overlayed the aluminium alloy that thickness is 0.2 ~ 0.4mm On thin plate, through flanging, curling, the seaming of tuber with roll, roll into outer layer be aluminium alloy sheet be normal thin steel with internal layer The spiral seam thin-wall metal bushing of plate composite integrated.