CN209762455U

CN209762455U - Heat insulation composite pipe

Info

Publication number: CN209762455U
Application number: CN201920503180.3U
Authority: CN
Inventors: 甘志超
Original assignee: Foshan Baitong Pipe Co Ltd
Current assignee: Foshan Baitong Pipe Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2019-12-10
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a thermal-insulated compound pipe, including the inlayer, sandwich layer and skin, wherein, the inlayer is PVC extrusion moulding pipe, the sandwich layer is the polyurethane adhesive, the skin is HDPE/TPU composite strip winding layer, wherein, HDPE/TPU composite strip is by HDPE strip and the overlapping of overlapping each other of foaming TPU strip in width direction constitution, the width of overlap joint part is the half of HDPE strip width, the HDPE strip equals with the width of foaming TPU strip, and the HDPE strip sets up the inboard at the foaming TPU strip, HDPE/TPU composite strip is range upon range of formula spiral winding in the outside of sandwich layer, each week HDPE/TPU composite strip and last a week HDPE/TPU composite strip are the local range upon range of overlap joint in width direction, make the non-overlap joint part of HDPE strip overlap each other with the non-overlap joint part of foaming TPU strip.

Description

Heat insulation composite pipe

[ technical field ] A method for producing a semiconductor device

The utility model relates to a tubular product field, concretely relates to thermal-insulated compound pipe.

[ background of the invention ]

The winding pipe is a pipe formed by winding and welding resin materials such as High Density Polyethylene (HDPE), polyvinyl chloride (PVC) and the like serving as raw materials, and is mainly divided into a large-diameter winding pipe, a double-wall winding pipe, a hollow winding pipe and the like, the resin materials such as the High Density Polyethylene (HDPE), the polyvinyl chloride (PVC) and the like not only ensure the product forming process and the product quality due to the excellent fusion welding performance of the resin materials, but also provide various reliable modes for construction connection, such as electrothermal fusion welding, thermal contraction connection and the like, and meanwhile, the resin materials are an important reason for seldom occurring leakage conditions, and just because of the reason, the pipe has the unique environment-friendly function which other pipes do not have, so that the pipe is widely applied to the fields of drainage pipelines, conveying pipelines, electric wires and cables and the like.

The conveying pipeline in the prior art is generally single in structure and insufficient in heat insulation performance, and a plurality of layers of heat insulation materials are wound on some pipelines in order to ensure the heat insulation performance, so that the pipe is thickened and weighted, and the manufacturing cost of the pipe is also increased.

Therefore, how to provide a composite pipe material which is easy to manufacture, low in cost and capable of effectively insulating heat is a technical problem to be solved in the field.

[ Utility model ] content

An object of the utility model is to provide an easily make, with low costs, matter light and can effectively thermal-insulated compound tubular product.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The inner layer is a PVC extrusion molding pipe, the core layer is a polyurethane adhesive, the outer layer is a HDPE/TPU composite strip winding layer, the HDPE/TPU composite strip is formed by mutually overlapping and lapping HDPE strips and micro-foaming TPU strips in the width direction, the width of an overlapping part is one half of the width of the HDPE strips, the HDPE strips are equal to the width of the micro-foaming TPU strips, the HDPE strips are arranged on the inner side of the micro-foaming TPU strips, the HDPE/TPU composite strips are spirally wound on the outer side of the core layer in a overlapping mode, each HDPE/TPU composite strip and the HDPE/TPU composite strip in the last circle are partially overlapped and lapped in the width direction, and the non-overlapping part of the HDPE strips and the non-overlapping part of the micro-foaming TPU strips are mutually overlapped and bonded.

Preferably, the HDPE tape is overlapped with the microfoamed TPU tape by hot pressing.

Preferably, the HDPE strip and the micro-foaming TPU strip are overlapped through a polyurethane adhesive.

Preferably, the thickness of the micro-foamed TPU tape is 5mm to 50 mm.

Preferably, the HDPE tape has a thickness of 5mm to 20 mm.

the utility model discloses a compound pipe that insulates against heat adopts HDPE/TPU compound strip as the winding layer, wherein, the foaming TPU layer that declines has excellent separation nature and damping nature, can effectively improve thermal-insulated effect and the impact resistance of tubular product, moreover, adopt the HDPE strip to twine after the compound strip of the elder generation constitution of foaming TPU strip again, can accomplish two-layer winding simultaneously through a winding technology, and be difficult for causing the dislocation of two-layer strip and the uneven problem of pipe wall thickness that arouses, production facility has been simplified simultaneously, the manufacturing efficiency of tubular product has been improved, and the production cost is reduced.

[ description of the drawings ]

Fig. 1 is a schematic structural view of the heat-insulating composite pipe of the present invention.

Fig. 2 is a schematic cross-sectional view of the heat-insulating composite pipe of the present invention.

Figure 3 is the structure schematic diagram of the HDPE/TPU composite strip of the present invention.

Description of reference numerals: 1-inner layer, 2-core layer, 3-outer layer, 4-lap part, 5-non-lap part of HDPE belt material, and 6-non-lap part of micro-foaming TPU belt material.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

Example 1

As shown in fig. 1-3, the heat-insulating composite pipe of the present invention comprises an inner layer 1, a core layer 2 and an outer layer 3, wherein, the inner layer is a PVC extrusion molding pipe, the core layer is a polyurethane adhesive, the outer layer is a HDPE/TPU composite strip winding layer, wherein the HDPE/TPU composite strip is formed by mutually overlapping and lapping an HDPE strip and a micro-foaming TPU strip in the width direction, the width of the lapping part 4 is one half of the width of the HDPE strip, the width of the HDPE strip is equal to that of the micro-foaming TPU strip, the HDPE strips are arranged on the inner side of the micro-foaming TPU strips, the HDPE/TPU composite strips are spirally wound on the outer side of the core layer 2 in a laminated mode, the HDPE/TPU composite strips on each circle are partially overlapped and lapped with the HDPE/TPU composite strips on the previous circle in the width direction, and the non-overlapping portion 5 of the HDPE strips and the non-overlapping portion 6 of the micro-foaming TPU strips are overlapped and bonded with each other. The HDPE tape is overlapped with the microfoamed TPU tape by hot pressing or polyurethane adhesive. The thickness of the micro-foamed TPU strip and the HDPE strip are both 10 mm.

The heat-insulating composite pipe of the embodiment adopts the HDPE/TPU composite strip as the winding layer, can effectively improve the heat-insulating effect and the impact resistance of the pipe, can simultaneously complete two layers of winding through one-time winding process, is not easy to cause the problem of uneven pipe wall thickness caused by dislocation of two layers of strips, simplifies production equipment, improves the manufacturing efficiency of the pipe, and reduces the production cost.

Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.

Claims

1. A heat insulation composite pipe comprises an inner layer, a core layer and an outer layer, and is characterized in that the inner layer is a PVC extrusion molding pipe, the core layer is polyurethane adhesive, the outer layer is HDPE/TPU composite strip winding layer, the HDPE/TPU composite strip is formed by mutually overlapping and lapping an HDPE strip and a micro-foaming TPU strip in the width direction, the width of the overlapped part is one half of the width of the HDPE strip, the width of the HDPE strip is equal to that of the micro-foaming TPU strip, the HDPE/TPU composite strip is spirally wound on the outer side of the core layer in a laminated mode, and the HDPE/TPU composite strip on the last circle are partially overlapped and lapped in the width direction in each circle, so that the non-overlapping part of the HDPE strip and the non-overlapping part of the micro-foaming TPU strip are overlapped and bonded with each other.

2. The insulated composite pipe of claim 1, wherein the HDPE tape is overlapped with the microfoamed TPU tape by hot pressing.

3. The insulated composite pipe of claim 1, wherein the HDPE tape and the microfoamed TPU tape are overlapped by a polyurethane adhesive.

4. The insulated composite pipe of any of claims 1-3, wherein the micro-foamed TPU tape has a thickness of from 5mm to 50 mm.

5. The insulated composite pipe of any one of claims 1-3, wherein the HDPE tape has a thickness of from 5mm to 20 mm.