CN211779444U

CN211779444U - Low-temperature-resistant explosion-proof water supply pipe

Info

Publication number: CN211779444U
Application number: CN201922304366.9U
Authority: CN
Inventors: 叶观群
Original assignee: Anhui Wanan Environment Technology Co ltd
Current assignee: Anhui Wanan Environment Technology Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-27
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a low temperature resistant explosion-proof water supply pipe in the technical field of polymer water supply pipes, which comprises a PP-R core pipe, the outer wall of the PP-R core pipe is wrapped with a PP-B sleeve pipe, the outer wall of the PP-B sleeve pipe is wrapped with a low-temperature explosion-proof sleeve, the low-temperature explosion-proof sleeve comprises a heat insulation layer, the heat insulation layer is wrapped with a pearly-lustre sand layer, the outer wall of the low-temperature explosion-proof sleeve is wrapped with a rubber corrosion-resistant layer, the outer wall of the rubber corrosion-resistant layer is wrapped with a steel-plastic composite sleeve, the left end of the PP-R core pipe is connected with a threaded connector, the right end of the PP-R core pipe is connected with a threaded connecting groove, the low-temperature-resistant explosion-proof water supply pipe can be used for a longer time than the service life of a common water supply pipe in a low-temperature environment, through the heat insulation effect of the low-temperature explosion-proof sleeve and the pearly-lustre sand layer, the corrosion of low temperature to the PP-R core pipe is prevented, and the cracking explosion of the PP-R core pipe is avoided.

Description

Low-temperature-resistant explosion-proof water supply pipe

Technical Field

The utility model relates to a polymer feed pipe technical field specifically is a low temperature resistant explosion-proof feed pipe.

Background

The water supply pipe, as the name suggests, is a pipeline for conveying liquid water, and is generally used in the fields of domestic water supply and drainage, chemical pollution discharge, water plant transformation, national hydraulic engineering and the like. The water supply pipe comprises a metal pipe, a composite pipe and a plastic pipe, wherein the metal pipe mainly comprises a copper pipe and a stainless steel water pipe; the most used of the composite pipes are aluminum-plastic pipes; the plastic pipe is most commonly a PP-R pipe, and is favored by most families and enterprises due to the reasons of safety, no toxicity, convenient installation, low price and the like. However, the pipe wall of the existing PP-R water supply pipe is only provided with one PP-R layer, the PP-R has better creep resistance at high temperature, the better application temperature is 10-70 ℃, but the low temperature resistance is poorer, and in cold winter, the PP-R water supply pipe is brittle and has pipe explosion phenomenon due to the lower temperature which is usually lower than 10 ℃, so that inconvenience is brought to families or enterprises, and the use cost of the water supply pipe is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof feed pipe of low temperature resistant to the PP-R that proposes in solving above-mentioned background art is poor in low temperature resistant performance, in chilly winter, because the temperature is lower, is less than 10 ℃ usually, PP-R feed pipe can become fragile and take place the pipe explosion phenomenon, thereby bring inconvenience for family or enterprise, and increased the use cost's of feed pipe problem.

In order to achieve the above object, the utility model provides a following technical scheme: the low-temperature-resistant explosion-proof water supply pipe comprises a PP-R core pipe, wherein the outer wall of the PP-R core pipe is wrapped with a PP-B sleeve, the outer wall of the PP-B sleeve is wrapped with a low-temperature explosion-proof sleeve, the low-temperature explosion-proof sleeve comprises a heat insulation layer, the heat insulation layer is wrapped with a pearly-lustre sand layer, the outer wall of the low-temperature explosion-proof sleeve is wrapped with a rubber corrosion-resistant layer, the outer wall of the rubber corrosion-resistant layer is wrapped with a steel-plastic composite sleeve, the left end of the PP-R core pipe is connected with a threaded connector, and the right end of the PP-R core pipe.

Preferably, the PP-B sleeve is a polypropylene pipeline.

Preferably, the heat insulation layer is a mineral wool heat insulation layer.

Preferably, a sealing ring is arranged on the left side of the inner cavity of the threaded connecting groove.

Compared with the prior art, the beneficial effects of the utility model are that: the low-temperature-resistant explosion-proof water supply pipe can be used for a longer time than a common water supply pipe in a low-temperature environment, and through the heat insulation effect of the low-temperature explosion-proof sleeve and the pearly-lustre sand layer, the corrosion of low temperature to a PP-R core pipe is prevented, and the cracking explosion of the PP-R core pipe cannot be caused.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a right side view of the low-temperature explosion-proof sleeve of the utility model.

In the figure: 1 PP-R core pipe, 2 PP-B sleeve pipe, 3 low temperature explosion-proof sleeves, 31 heat insulation layers, 32 pearly-lustre sand layers, 4 rubber corrosion-resistant layers, 5 steel-plastic composite sleeve pipes, 6 threaded connecting grooves and 7 threaded connectors.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a low-temperature-resistant explosion-proof water supply pipe comprises a PP-R core pipe 1, wherein the outer wall of the PP-R core pipe 1 is wrapped with a PP-B sleeve pipe 2, the outer wall of the PP-B sleeve pipe 2 is wrapped with a low-temperature explosion-proof sleeve 3, the low-temperature explosion-proof sleeve 3 comprises a heat insulation layer 31, the heat insulation layer 31 is wrapped with a pearly-lustre sand layer 32, the outer wall of the low-temperature explosion-proof sleeve 3 is wrapped with a rubber corrosion-resistant layer 4, the outer wall of the rubber corrosion-resistant layer 4 is wrapped with a steel-plastic composite sleeve pipe 5, the left end of the PP-R core pipe 1 is connected with a threaded connector 7, and the.

The PP-B sleeve 2 is a polypropylene pipeline and has strong heat and cold resistance, the heat insulation layer 31 is a mineral wool heat insulation layer and is excellent in heat insulation and moisture preservation, and a sealing ring is arranged on the left side of an inner cavity of the threaded connection groove 6 to improve the air tightness of the water supply pipe.

The working principle is as follows: when the water supply pipe is used, the low-temperature explosion-proof sleeve 3 plays a role in isolating temperature, the rubber corrosion-resistant layer 4 protects the outer layer of the low-temperature explosion-proof sleeve 3, the PP-B sleeve 2 protects the PP-R core pipe 1, the steel-plastic composite sleeve 5 wraps the outermost layer and plays a role in enhancing corrosion resistance and increasing strength of the water supply pipe, the two ends of the PP-R core pipe 1 are respectively connected with the threaded connector 7 and the threaded connecting groove 6, and the threaded connector 7 and the threaded connecting groove 6 are matched with each other, so that the water supply pipe can be installed conveniently.

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

Claims

1. The utility model provides a low temperature resistant explosion-proof feed pipe, includes PP-R core pipe (1), its characterized in that: the outer wall parcel of PP-R core pipe (1) has PP-B sleeve pipe (2), the outer wall parcel of PP-B sleeve pipe (2) has low temperature explosion-proof cover (3), low temperature explosion-proof cover (3) is including heat insulating layer (31), heat insulating layer (31) parcel has pearly-lustre sand layer (32), the outer wall parcel of low temperature explosion-proof cover (3) has rubber corrosion resistant layer (4), the outer wall parcel of rubber corrosion resistant layer (4) has steel to mould composite bushing (5), the left end of PP-R core pipe (1) is connected with threaded connection head (7), the right-hand member of PP-R core pipe (1) is connected with screw thread spread groove (6).

2. The low temperature resistant explosion-proof water supply pipe according to claim 1, characterized in that: the PP-B sleeve (2) is a polypropylene pipeline.

3. The low temperature resistant explosion-proof water supply pipe according to claim 1, characterized in that: the heat insulation layer (31) is a mineral wool heat insulation layer.

4. The low temperature resistant explosion-proof water supply pipe according to claim 1, characterized in that: and a sealing ring is arranged on the left side of the inner cavity of the threaded connecting groove (6).