CN203322523U

CN203322523U - Polyethylene of raised temperature resistance (PE-RT) tubular product

Info

Publication number: CN203322523U
Application number: CN2013204066441U
Authority: CN
Inventors: 夏成文
Original assignee: JUNXING PIPE INDUSTRY Co Ltd
Current assignee: JUNXING PIPE INDUSTRY Co Ltd
Priority date: 2013-07-09
Filing date: 2013-07-09
Publication date: 2013-12-04
Anticipated expiration: 2023-07-09

Abstract

The utility model provides a safe and reliable polyethylene of raised temperature resistance (PE-RT) tubular product which comprises a protective layer, an oxygen-resisting layer and a PE-RT layer. A tube body comprises the protective layer, the oxygen-resisting layer and the PE-RT layer from outside to inside in sequence, and all the functional layers are adhered together through gluing material. The protective layer is made of high-pressure low-density PE-RT material, and the oxygen-resisting layer is made of EVOH material and evenly wraps the outside of the PE-RT layer. An improvement is performed on an original basis, namely the high-pressure low-density PE-RT protective layer is added on the outer side of the tube body, and not only is the tube body protected from being punctured in a construction process, but also pressure-resisting capacity of the tube body is improved, so that the tube body is not prone to being flattened. The oxygen-resisting layer obstructs oxygen and ensures that metal connecting pieces in a heating system are not corroded, and service life of the tube is prolonged.

Description

A kind of heat-proof polythene PE-RT tubing

Technical field

The utility model relates to floor heating tubing field, relates in particular to a kind of heat-proof polythene PE-RT tubing.

Background technique

Heat-proof polythene is a kind of a kind of medium density polyethylene that adopts special MOLECULE DESIGN and synthesis technology to produce, it adopts the method for ethene and octene copolymer, obtain unique structure of molecule by quantity and the distribution of controlling side chain, improve the heat resistance of PE pipe, the good pliability that has retained the PE pipe, high thermal conductivity and inertia, make it resistance to pressure better simultaneously, development along with plastics technology, in indoor heating system, the plastic tube of various different purposes arises at the historic moment, PE-RT just progressively becomes the main product in floor heating market as the special-purpose tubing of heating of new generation, but the physical property from PE-RT, its linear expansion coefficient is higher, when this has also determined the installation of PE-RT pipe, supporting spacing is very little, exist the built on stilts span of pipeline little, supporting member is installed many shortcomings, impact due to certain situation in work progress, easily make the PE-RT pipe be punctured, reserved pipe end section is crushed etc., can cause and repeatedly rebuild and the phenomenon of doing over again, and common plastic tube all has the oxygen of oozing, and the infiltration meeting of oxygen increases along with the rising of temperature, circulating water oxygen content in the heating pipeline increases, can accelerate the metal connecting piece in the corrosion heating system.

Summary of the invention

According to above technical problem, the utility model provides a kind of safe and reliable heat-proof polythene PE-RT tubing, comprise body, it is characterized in that: also comprise protective coating, oxidation prevention layer, PE-RT layer, described body is followed successively by protective coating, oxidation prevention layer, PE-RT layer from outside to inside, between each functional layer, by glueing material, is bonded together.

The PE-RT material that described protective coating is high pressure low density.

Described oxidation prevention layer is the EVOH material, and is wrapped in equably the outside of PE-RT layer.

The beneficial effects of the utility model are: the utility model is improved on original basis; increase the PE-RT protective coating of high pressure low density in the outside of body; both protected body not punctured in the process of construction; increased again the anti-pressure ability of body; make body be difficult for being crushed; the oxidation prevention layer blocking oxygen, guarantee that the metal connecting piece in heating system is not corroded, and extends the working life of pipe.

The accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Embodiment

Shown in Fig. 1, the utility model is further described:

As Fig. 1, protective coating-1, oxidation prevention layer-2, PE-RT layer-3;

Embodiment 1

The utility model is followed successively by protective coating 1, oxidation prevention layer 2, PE-RT layer 3 from outside to inside, between each functional layer, by glueing material, be bonded together, the PE-RT material that protective coating 1 is high pressure low density, oxidation prevention layer 2 is the EVOH material, and is wrapped in equably the outside of PE-RT layer.

The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvement, these improvement also should be considered as protection domain of the present utility model.

Claims

1. a heat-proof polythene PE-RT tubing, comprise body, it is characterized in that: also comprise protective coating (1), oxidation prevention layer (2), PE-RT layer (3), described body is followed successively by protective coating (1), oxidation prevention layer (2), PE-RT layer (3) from outside to inside, between each functional layer, by glueing material, is bonded together.

2. according to a kind of heat-proof polythene PE-RT tubing claimed in claim 1, it is characterized in that: described protective coating (1) is the PE-RT material of high pressure low density.

3. according to a kind of heat-proof polythene PE-RT tubing claimed in claim 1, it is characterized in that: described oxidation prevention layer (2) is the EVOH material, and is wrapped in equably the outside of PE-RT layer.