CN2364302Y - Plastic coated integrated thermal insulating metal pipe - Google Patents

Abstract

The utility model discloses a plastic sheathed integrated thermal insulating metal pipe, which is characterized in that the surface of a metal pipe is sheathed with a plastic layer, and the inner surface of the plastic layer tightly sheathed on the metal pipe has a plurality of approximate U-shaped, or V-shaped, or serrate concave and convex posts; as a regular air thermal insulating layer is formed between the metal pipe and the plastic layer, the thermal conductivity coefficient of the plastic sheathed integrated thermal insulating metal pipe is efficiently lowered, and the utility model has the functions of thermal insulation, heat insulation, and freeze protection. Meanwhile, the utility model is favorable for construction and installation and is an ideal thermal insulating pipe material.

Description

Mould the metal-integral thermal insulation pipe again

The utility model relates to the technical field of thermal insulation pipe, specifically a kind of outside metal tube the thermal insulation pipe of the topped plastics of injection moulding.

Metal tube of the prior art, plastics oversheath Guan Jun occur with independent product form, and plastics oversheath pipe is mostly for having all more smooth tubulose of certain thickness inside and outside wall, during use plastics oversheath pipe box is contained on the metal tube, and filling foamed plastics is incubated between plastics oversheath pipe and metal tube, owing to be manually to fill, the metal tube of plastic wraps is inhomogeneous, and not only heat insulation effect is not good enough, and very inconvenient when construction and installation.

The purpose of this utility model is to provide a kind of metal-integral thermal insulation pipe of moulding again, and not only heat insulation effect is better for it, also is convenient to construction and installation.

The technical solution of the utility model is achieved in that moulds the metal-integral thermal insulation pipe again, it is characterized in that: topped on metal tube surface have a plastic layer, the plastic layer internal surface that wraps tightly metal tube be somely approximately take the shape of the letter U, the concavo-convex post of V-arrangement or profile of tooth.

The utility model has been owing to wrapped tightly plastic layer on the metal tube surface, the internal surface that this plastic layer contacts with metal tube be some be similar to take the shape of the letter U, the concavo-convex post of V-arrangement or profile of tooth.Metal tube and plastic layer closely link into an integrated entity, thereby make this thermal insulation pipe between metal tube and plastic layer, form the comparatively air heat insulating layer of rule, reduced the thermal conductivity of moulding metal tube again effectively, has insulation, heat insulation, antifreeze function, can prevent that energy scatters and disappears, energy saving, beautiful shape, construction and installation are all very convenient, the save trouble and labor, this thermal insulation pipe can be widely used in building and industrial pipe, moulds metal tube 20 degrees centigrade of room temperatures for answering of copper pipe plastics wall thickness 5mm through testing in, when managing nearly 100 degrees centigrade of the temperature of interior water, managing outer observed temperature is 28 degrees centigrade, under the environment of negative 5 degrees centigrade of the outer temperature of pipe, the interior water of pipe does not have freezing phenomenon, is a kind of comparatively desirable heat-insulating pipe.

Fig. 1 is the utility model one embodiment's a sectional drawing

Fig. 2 is another embodiment's of the utility model a sectional drawing

The utility model will be further described below in conjunction with drawings and Examples

The utility model is for moulding the metal-integral thermal insulation pipe again, it is different from prior art: topped on metal tube 1 surface have a plastic layer 2, the plastic layer internal surface that wraps tightly metal tube is some approximate taking the shape of the letter U, the concavo-convex post 3 of V-arrangement or profile of tooth, the outer surface of plastic layer is smooth tubulose, embodiment in the accompanying drawing is provided with 12 concavo-convex posts of U-shaped at the internal surface of plastic layer, another embodiment then is provided with 24 concavo-convex posts of V-arrangement at the internal surface of plastic layer, the U that the formation of these concavo-convex posts is made according to calculation Design, V-arrangement profile of tooth mouth mould, this product is to join a plastic extruder equipment at existing metal tubulation technical, the special U that can form concavo-convex post is housed in plastic extruder equipment, V or profile of tooth mouth mould, the technology of the similar present production elastic cable paper of this technology, after the finished product metal tube is made, metal tube is put into conveyor rail, progressively metal tube is sent in the special mouthful of mould that is contained in plastic extruder by conveyor, plastic raw material is at high temperature dissolved to mould again through extruder again and is finalized the design in the metal tube skin in addition, thereby it is smooth complete to produce outer wall, vertical U or the concavo-convex post of V-arrangement are contained in the centre, in be wrapped with the integrated metal heat preservation pipe of moulding again of metal tube.

Claims (1)

1, mould the metal-integral thermal insulation pipe again, it is characterized in that: topped on metal tube surface have a plastic layer, the plastic layer internal surface that wraps tightly metal tube be somely approximately take the shape of the letter U, the concavo-convex post of V-arrangement or profile of tooth.