CN211875322U - An extrusion-resistant multi-layer composite pipe - Google Patents

Abstract

The utility model discloses an extrusion-resistant multilayer composite pipe, including the steel pipe body, the outside of steel pipe body is fixed and is provided with the polyethylene heat preservation, the outside of polyethylene heat preservation is fixed and is provided with the cotton-rock pipe puigging, the outside of cotton-rock pipe puigging is provided with PVC outer pipe box, the inside of PVC outer pipe box is fixed and is provided with one deck connecting net, the one end of steel pipe body is provided with the extension ring, the utility model discloses a multilayer composite pipe has been designed, can play the problem of preventing PVC outer pipe box from leaking the easy fracture in the outside for a long time through having designed the connecting net in PVC outer pipe box in the outside; additionally the utility model provides a rock wool pipe puigging and polyethylene heat preservation have been designed to the composite pipe inlayer, the effect that plays heat preservation and syllable-dividing that can be good to steel pipe body tip has designed and has extended the ring, extends the ring and extends to PVC outer pipe box edge, and the tip edge that will connect net, rock wool pipe puigging and polyethylene heat preservation is sealed, plays sealed and protective effect.

Description

An extrusion-resistant multi-layer composite pipe

technical field

The utility model belongs to the technical field of composite pipes, in particular to an extrusion-resistant multi-layer composite pipe.

Background technique

A pipeline is a device for conveying gas, liquid or fluid with solid particles connected by pipes, pipe joints and valves. Usually, after the fluid is pressurized by blowers, compressors, pumps and boilers, it flows from the high pressure of the pipeline to the low pressure, and the fluid can also be transported by its own pressure or gravity. Pipelines are widely used, mainly used in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial installations. Suitable for different environments.

Utility model content

The purpose of the present invention is to provide an extrusion-resistant multi-layer composite pipe to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: an extrusion-resistant multi-layer composite pipe, comprising a steel pipe body, the outer side of the steel pipe body is fixedly provided with a polyethylene insulation layer, and the outer side of the polyethylene insulation layer is The rock wool pipe sound insulation layer is fixedly arranged, the outer side of the rock wool pipe sound insulation layer is provided with a PVC outer pipe sleeve, the interior of the PVC outer pipe sleeve is fixedly provided with a layer of connecting net, and one end of the steel pipe body is provided with an extension ring The extension ring extends to the edge of the end of the PVC outer pipe sleeve, and the extension ring is fitted with the polyethylene thermal insulation layer, the rock wool pipe sound insulation layer and the PVC outer pipe sleeve.

Preferably, the outer surface of the steel pipe body is provided with a wave groove, and the outer surface of the polyethylene thermal insulation layer and the wave groove are attached to each other.

Preferably, the PVC outer pipe sleeve and the rock wool pipe sound insulation layer are bonded and connected by hot melt adhesive, and the rock wool pipe sound insulation layer and the polyethylene insulation layer are also bonded and connected by hot melt adhesive.

Preferably, the connecting net is an integral annular structure, and the PVC outer tube sleeve and the connecting net are integrally formed.

Preferably, the end surface of the extension ring is flush with the end surface of the PVC outer sleeve.

Compared with the prior art, the beneficial effect of the present utility model is as follows: a multi-layer composite pipe is designed in the utility model, and a connecting net is designed in the outer PVC outer pipe casing to prevent the PVC outer pipe casing from being exposed for a long time. In addition, the inner layer of the composite pipe in the utility model is designed with a rock wool pipe sound insulation layer and a polyethylene thermal insulation layer, which can effectively achieve the effect of heat preservation and sound insulation, and the end of the steel pipe body is designed with a sound insulation layer and a polyethylene insulation layer. The extension ring extends to the edge of the PVC outer pipe sleeve, and seals the end edge of the connecting net, the sound insulation layer of the rock wool pipe and the polyethylene insulation layer, and plays the role of sealing and protection.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present utility model;

Fig. 2 is the end sectional structure schematic diagram of the utility model;

Fig. 3 is the front sectional structure schematic diagram of the utility model;

In the picture: 1. PVC outer pipe sleeve; 2. Connection net; 3. Rock wool pipe sound insulation layer; 4. Polyethylene insulation layer; 5. Steel pipe body; 6. Extension ring; 7. Wave groove.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

Please refer to FIGS. 1 to 3, the present utility model provides a technical solution: an extrusion-resistant multi-layer composite pipe, comprising a steel pipe body 5, and a polyethylene insulation layer 4 is fixed on the outer side of the steel pipe body 5 to keep heat preservation. For the function of anti-freezing, the outer side of the polyethylene insulation layer 4 is fixedly provided with a rock wool pipe sound insulation layer 3, which plays the role of sound insulation. A layer of connecting net 2 is fixedly arranged to prevent the PVC outer sleeve 1 from cracking. One end of the steel pipe body 5 is provided with an extension ring 6. The extension ring 6 extends to the edge of the end of the PVC outer sleeve 1, and the extension ring 6 is insulated with polyethylene. Layer 4, the sound insulation layer 3 of the rock wool pipe and the PVC outer pipe sleeve 1 are all fitted together to play a sealing role.

In this embodiment, preferably, the outer surface of the steel pipe body 5 is provided with a wave groove 7, and the outer surface of the polyethylene thermal insulation layer 4 and the wave groove 7 are attached to each other to ensure adhesion and tightness.

In this embodiment, preferably, the PVC outer pipe sleeve 1 and the rock wool pipe sound insulation layer 3 are connected by hot melt adhesive, and the rock wool pipe sound insulation layer 3 and the polyethylene insulation layer 4 are also connected by hot melt adhesive. , in order to ensure a firm connection and integrity.

In this embodiment, preferably, the connecting net 2 is an integral annular structure, and the PVC outer pipe sleeve 1 and the connecting net 2 are integrally formed, in order to ensure a firm connection.

In this embodiment, preferably, the end surface of the extension ring 6 is flush with the end surface of the PVC outer pipe sleeve 1, in order to play a sealing role, and at the same time, it is flush to facilitate installation.

The working principle and use process of the present utility model: in the composite pipe of the present utility model, the connecting net 2 is designed in the outer PVC outer pipe sleeve 1, which can prevent the PVC outer pipe sleeve 1 from being exposed to the outside for a long time and is easy to crack; in addition The rock wool pipe sound insulation layer 3 and the polyethylene insulation layer 4 designed in the inner layer of the composite pipe in the present invention can have good thermal insulation and sound insulation effects, and an extension ring 6 is designed at the end of the steel pipe body 5, and the extension ring 6 It extends to the edge of the PVC outer pipe sleeve 2, and seals the end edges of the connecting net 2, the rock wool pipe sound insulation layer 3 and the polyethylene thermal insulation layer 4, and plays the role of sealing and protection.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a resistant compound pipe of extruded multilayer, includes steel pipe body (5), its characterized in that: the fixed polyethylene heat preservation (4) that is provided with in the outside of steel pipe body (5), the fixed cotton pipe puigging (3) of rock that is provided with in the outside of polyethylene heat preservation (4), the outside of cotton pipe puigging (3) of rock is provided with PVC outer pipe box (1), the fixed one deck net (2) of connecting that is provided with in inside of PVC outer pipe box (1), the one end of steel pipe body (5) is provided with extends ring (6), extend ring (6) and extend to the tip edge of PVC outer pipe box (1), and extend ring (6) and polyethylene heat preservation (4), rock wool pipe puigging (3) and PVC outer pipe box (1) and all laminate.

2. The extrusion-resistant multilayer composite pipe of claim 1, wherein: the outer surface of the steel pipe body (5) is provided with a wave groove (7), and the outer surface of the polyethylene heat-insulating layer (4) is attached to the wave groove (7) mutually.

3. The extrusion-resistant multilayer composite pipe of claim 1, wherein: PVC outer pipe box (1) is connected through the hot melt adhesive bonding with rock wool pipe puigging (3), also be connected through the hot melt adhesive bonding between rock wool pipe puigging (3) and polyethylene heat preservation (4).

4. The extrusion-resistant multilayer composite pipe of claim 1, wherein: the connecting net (2) is of an integrated annular structure, and the PVC outer pipe sleeve (1) and the connecting net (2) are integrally formed.

5. The extrusion-resistant multilayer composite pipe of claim 1, wherein: the end surface of the extension ring (6) is flush with the end surface of the PVC outer jacket (1).

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