CN215721343U - PERTII type flame-retardant pipe - Google Patents

Abstract

The utility model discloses a PERTII type flame-retardant pipe, which comprises a top pipe and a bottom pipe, wherein the peripheries of the outer walls of the top pipe and the bottom pipe are respectively provided with an outer plating flame-retardant layer, a first outer synthetic layer is bonded on the middle end of the jacking pipe in a hot-pressing way, a first inner synthetic layer is bonded on the middle end of the first outer synthetic layer in a hot-pressing way, a second outer synthetic layer is bonded to the middle end of the bottom tube in a hot-pressing mode around the middle end of the bottom tube, a second inner synthetic layer is bonded to the middle end of the second outer synthetic layer in a hot-pressing mode around the middle end of the second outer synthetic layer, a central pipe is fixedly connected to the inner walls of the first inner synthetic layer and the second inner synthetic layer in a circle, a flame-retardant filling layer is uniformly arranged on the outer wall of the first outer synthetic layer in a circle, the second-class flame-retardant filling layer is uniformly arranged on the outer wall of the first inner synthetic layer in a circle, the technical field of flame-retardant pipes is involved, the problem that the flame retardant property of the pipe is sharply reduced after open fire or high temperature breaks through the flame-retardant layer is solved, and the problem that the connecting area of adjacent pipes is cracked due to the expansion and contraction effect of heat and cold after the adjacent pipes are subjected to high temperature is solved.

Description

PERTII type flame-retardant pipe

Technical Field

The utility model relates to the technical field of flame-retardant pipes, in particular to a PERTII type flame-retardant pipe.

Background

The composite pipe is a pipe based on a metal and thermoplastic plastic composite structure, is formed by internally lining non-metallic materials such as polypropylene, polyethylene or externally welded crosslinked polyethylene and the like, has the advantages of a metal pipe and a non-metallic pipe, is a Pertii pipe serving as a heat supply, heating and hot spring water conveying pipe, is formed by copolymerizing polyethylene and hexene (butylene), belongs to a high-temperature-resistant high-density polyethylene material, has the use temperature of-40-95 ℃, and has three modes of hot melt butt joint, hot melt socket joint and electric fusion welding, such as a wider PERTII flame-retardant pipe used in the field of indoor fire prevention, but the existing PERTII flame-retardant pipe still has many problems in use.

The existing PERTII type flame-retardant pipe has the following problems in use:

1. the existing pipe is usually provided with a flame retardant layer, and the flame retardant property of the pipe is rapidly reduced after open fire or high temperature breaks through the flame retardant layer;

2. meanwhile, when the existing flame-retardant pipe meets high temperature, the outside of the pipe can resist the high temperature to a certain degree, but the connection area of the connected pipe can expand and crack due to the thermal expansion and cold contraction effect.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a PERTII type flame-retardant pipe, which solves the problem that the flame-retardant property of the pipe is rapidly reduced after open fire or high temperature breaks through a flame-retardant layer, and solves the problem that the connecting area of adjacent pipes is subjected to expansion and cracking due to the effect of expansion and contraction after high temperature.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a PERTII type flame retardant pipe, includes push pipe and bottom tube, push pipe and bottom tube outer wall a week all are equipped with outer plating fire-retardant layer, push pipe middle-end a week hot pressing bonding has first outer synthetic layer, first outer synthetic layer middle-end a week hot pressing bonding has first interior synthetic layer, bottom tube middle-end a week hot pressing bonding has second outer synthetic layer, second outer synthetic layer middle-end a week hot pressing bonding has second interior synthetic layer, the equal fixedly connected with center tube of synthetic layer inner wall a week in first interior synthetic layer and the second, first outer synthetic layer outer wall a week evenly is equipped with one type of fire-retardant filling layer, first inner synthetic layer outer wall a week evenly is equipped with two types of fire-retardant filling layer, second outer synthetic layer outer wall a week evenly is equipped with one type of fire-retardant filling layer, synthetic layer outer wall a week in the second evenly is equipped with two types of fire-retardant filling layer.

Preferably, a circle of the outer wall of the top pipe is fixedly connected with a hot-melt male connector, and a circle of the outer wall of the bottom of the top pipe is fixedly connected with a hot-melt female connector.

Preferably, a circle of the outer wall of the top of the bottom pipe is fixedly connected with a hot-melt male connector, a circle of the outer wall of the bottom pipe is fixedly connected with a hot-melt female connector, and the bottom of the top pipe is connected with the bottom pipe in a hot-melt manner.

Preferably, a first reinforcing pipe is welded on the periphery of the outer wall at the bottom end of the top pipe, a second reinforcing pipe is welded on the periphery of the outer wall at the top end of the bottom pipe, and the second reinforcing pipe is welded on the periphery of the bottom of the first reinforcing pipe.

Preferably, a top position reinforcing ring is connected to the outer wall of the top end of the top pipe in a hot melting mode around the circumference, and a bottom position reinforcing ring is connected to the outer wall of the bottom end of the bottom pipe in a hot melting mode around the circumference.

Preferably, a male joint convex ring is fixedly connected to the outer wall of the top end of the hot-melting male joint in a circle, and a female joint concave ring is arranged on the inner wall of the bottom of the hot-melting female joint in a circle.

(III) advantageous effects

The utility model provides a PERTII type flame-retardant pipe. The method has the following beneficial effects:

(1) the PERTII type flame-retardant pipe is provided with a top pipe and a bottom pipe, wherein the periphery of the outer walls of the top pipe and the bottom end is provided with an outer plating flame-retardant layer, so that the pipe can play a first role in flame-retardant protection when exposed fire or high temperature is encountered, even if the exposed fire or high temperature breaks through the outer plating flame-retardant layer and the external separation of the pipe, the periphery of the middle end of the top pipe is hot-pressed and bonded with a first outer synthetic layer, the periphery of the middle end of the first outer synthetic layer is hot-pressed and bonded with a first inner synthetic layer, the periphery of the middle end of the bottom pipe is hot-pressed and bonded with a second outer synthetic layer, the periphery of the middle end of the second outer synthetic layer is hot-pressed and bonded with a second inner synthetic layer, the outer walls of the first outer synthetic layer and the second outer synthetic layer are both uniformly provided with a first type flame-retardant filling layer, the outer walls of the first inner synthetic layer and the second inner synthetic layer are both uniformly provided with a second type flame-retardant filling layer, and the raw materials are added with a flame retardant agent during the manufacture of the multiple synthetic layers, so that the inner area of the top pipe and the bottom pipe can still keep flame-retardant effect, meanwhile, the uniformly arranged first-class flame-retardant filling layer and the second-class flame-retardant filling layer can form two powerful flame-retardant defenses from the inside, and the flame-retardant performance of the pipe is rapidly reduced after the flame-retardant layer is broken through by open fire or high temperature through the mutual matching of related structural parts;

(2) this kind of fire-retardant tubular product of PERTII type, through being equipped with first reinforcing pipe, the second reinforcing pipe, top reinforcing ring and bottom position reinforcing ring, after the bottom tube is connected to the push pipe hot melt, can keep the regional intensity of connection through the accurate hot melt of multistage material, simultaneously through being provided with first reinforcing pipe and second reinforcing pipe at the connection region, two reinforcing pipes all belong to the synthetic metal material that heat conductivility is low, can reduce the spalling of connection region through a week parcel after the welding, push pipe top region is equipped with top position reinforcing ring simultaneously, bottom tube bottom region is equipped with bottom position reinforcing ring, all can keep the outside parcel support of tubular product connection region, reduce the spalling after being heated, through the function of relevant structure spare part mutually supporting, so alleviated adjacent tubular product connection region and suffered the problem of spalling because of the effect of rising of heat and shrinking after the high temperature.

Drawings

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a top area structure view of the jacking pipe of the present invention;

FIG. 3 is a bottom view of the bottom section of the bottom tube of the present invention;

FIG. 4 is a partial cross-sectional view of a base pipe of the present invention;

FIG. 5 is a partial cross-sectional view of the jacking pipe of the present invention.

In the figure: the pipe comprises a top pipe-1, a bottom pipe-2, a first reinforced pipe-3, a second reinforced pipe-4, a top reinforced ring-5, a bottom reinforced ring-6, an outer plated flame-retardant layer-7, a hot-melting male joint-8, a male joint convex ring-9, a hot-melting female joint-10, a female joint concave ring-11, a central pipe-12, a first outer synthetic layer-13, a first inner synthetic layer-14, a second outer synthetic layer-15, a second inner synthetic layer-16, a first-class flame-retardant filling layer-17 and a second-class flame-retardant filling layer-18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a PERTII type flame-retardant pipe comprises a top pipe 1 and a bottom pipe 2, wherein an outer plated flame-retardant layer 7 is arranged on the periphery of the outer wall of the top pipe 1 and the bottom pipe 2, flame-retardant protection can be provided for the areas of the top pipe 1 and the bottom pipe 2 from the outside, a first outer synthetic layer 13 is bonded on the periphery of the middle end of the top pipe 1 in a hot-pressing mode, a first inner synthetic layer 14 is bonded on the periphery of the middle end of the first outer synthetic layer 13 in a hot-pressing mode, the inner synthetic layer and the outer synthetic layer are matched to keep the service performance of the area of the top pipe 1 and simultaneously combine the flame-retardant component effect, a second outer synthetic layer 15 is bonded on the periphery of the middle end of the bottom pipe 2 in a hot-pressing mode, a second inner synthetic layer 16 is bonded on the periphery of the middle end of the second outer synthetic layer 15 in a hot-pressing mode, the inner synthetic layer and the inner synthetic layer are matched to keep the area of the bottom pipe 2 and simultaneously combine the flame-retardant component effect, a central pipe 12 is fixedly connected on the inner walls of the first inner synthetic layer 14 and the second inner synthetic layer 16, the central tube 12 can be responsible for the smooth parcel transmission of wire rod or fluid, first outer synthetic layer 13 outer wall a week evenly is equipped with a class of fire- retardant filling layer 17, 14 outer wall a week of first interior synthetic layer evenly is equipped with two classes of fire- retardant filling layers 18, 15 outer wall a week of second outer synthetic layer evenly is equipped with a class of fire- retardant filling layer 17, 16 outer wall a week of second interior synthetic layer evenly is equipped with two classes of fire-retardant filling layers 18, the fire-retardant filling layer 17 of a class and the fire-retardant filling layer 18 of two classes that evenly are equipped with can form two powerful fire-retardant defences by inside.

A circle of outer wall of the top of the jacking pipe 1 is fixedly connected with a hot-melt male connector 8, a circle of outer wall of the bottom of the jacking pipe 1 is fixedly connected with a hot-melt female connector 10, and stable connection strength and a circle of connection range can be provided for an upper connection area and a lower connection area of the jacking pipe 1.

2 top outer walls of bottom tube a week fixedly connected with hot melt is public to be connected 8, 2 bottom outer walls of bottom tube a week fixedly connected with hot melt female the connecing 10, 1 bottom hot melt of push pipe connects bottom tube 2, can provide stable joint strength to the bottom tube 2 about the connection region, and a week connection range, and push pipe 1 and bottom tube 2 can be by inner a week formation stability setting intensity.

First reinforcing pipe 3 has been welded to top pipe 1 bottom outer wall a week, second reinforcing pipe 4 has been welded to 2 top outer walls a week of bottom pipe, 3 bottom a week welding second reinforcing pipes 4 of first reinforcing pipe, two reinforcing pipes all belong to the synthetic metal material that the heat conductivility is low, can reduce the expansion crack of connection region through a week parcel after the welding.

A circle of outer wall of the top end of the top pipe 1 is in hot melting connection with a top-position reinforcing ring 5, a circle of outer wall of the bottom end of the bottom pipe 2 is in hot melting connection with a bottom-position reinforcing ring 6, the top-position reinforcing ring 5 is arranged in the top end region of the top pipe 1, the bottom-position reinforcing ring 6 is arranged in the bottom end region of the bottom pipe 2, the pipe connecting region can be kept wrapped and supported outside, and expansion cracks after heating are reduced.

A circle of the outer wall of the top end of the hot-melting male joint 8 is fixedly connected with a male joint convex ring 9, a circle of the inner wall of the bottom of the hot-melting female joint 10 is provided with a female joint concave ring 11, and the hot-melting male joint 8 and the hot-melting female joint 10 can be kept accurate in connection through deep embedding matching of the male joint convex ring 9 and the female joint concave ring 11.

The working principle is as follows: when in use, the outer plating flame-retardant layer 7 is arranged on the periphery of the outer walls of the top pipe 1 and the bottom end, so that the first heavy flame-retardant protection can be realized when exposed fire or high temperature is encountered, even if the exposed fire or high temperature breaks through the outer plating flame-retardant layer 7 and the barrier outside the pipe, because the periphery of the middle end of the top pipe 1 is thermally pressed and adhered with the first outer synthetic layer 13, the periphery of the middle end of the first outer synthetic layer 13 is thermally pressed and adhered with the first inner synthetic layer 14, the periphery of the middle end of the bottom pipe 2 is thermally pressed and adhered with the second outer synthetic layer 15, the periphery of the middle end of the second outer synthetic layer 15 is thermally pressed and adhered with the second inner synthetic layer 16, the outer walls of the first outer synthetic layer 13 and the second outer synthetic layer 15 are uniformly provided with the first type flame-retardant filling layer 17, the outer walls of the first inner synthetic layer 14 and the second inner synthetic layer 16 are uniformly provided with the second type flame-retardant filling layers 18, and because the flame retardant is added in the raw materials during the manufacture of the multiple synthetic layers, the inner area of the top pipe 1 and the bottom pipe 2 can still maintain the flame-retardant effect, meanwhile, a first-class flame-retardant filling layer 17 and a second-class flame-retardant filling layer 18 are uniformly arranged, two powerful flame-retardant defenses can be formed from the inside, a first reinforcing pipe 3 and a second reinforcing pipe 4 are arranged in a connecting area, the double reinforcing pipes are both made of synthetic metal materials with low heat conductivity, the expansion crack of the connecting area can be reduced by wrapping a circle after welding, a top reinforcing ring 5 is arranged in a top end area of the top pipe 1, a bottom reinforcing ring 6 is arranged in a bottom end area of the bottom pipe 2, the outer wrapping support of the pipe connecting area can be kept, the expansion crack after heating is reduced, a hot-melting male joint 8 is arranged at the top of the top pipe 1, a hot-melting female joint 10 is arranged at the bottom of the top pipe 1, stable connecting strength can be provided for the upper and lower connecting areas of the top pipe 1, a circle of connecting range is provided, a hot-melting male joint 8 is arranged at the top of the bottom pipe 2, a hot-melting female joint 10 is arranged at the bottom of the bottom pipe 2, stable connecting area can be provided for the upper and lower connecting area of the bottom pipe 2, and a circle of connection scope, through the deep gomphosis cooperation of public affairs bulge loop 9 and female concave ring 11 that connects, can keep the hot melt public affairs 8 with the female nature of being connected of 10 of hot melt, the center tube 12 that all are equipped with can be responsible for wire rod or the smooth and easy parcel transmission of fluid.

The utility model comprises the following steps: the pipe comprises a top pipe-1, a bottom pipe-2, a first reinforced pipe-3, a second reinforced pipe-4, a top reinforced ring-5, a bottom reinforced ring-6, an outer plated flame-retardant layer-7, a hot-melting male joint-8, a male joint convex ring-9, a hot-melting female joint-10, a female joint concave ring-11, a central pipe-12, a first outer synthetic layer-13, a first inner synthetic layer-14, a second outer synthetic layer-15, a second inner synthetic layer-16, a first flame-retardant filling layer-17 and a second flame-retardant filling layer-18, wherein the components are all universal standard components or components known by technical manuals or conventional experimental methods, and the structure and the principle of the components are all known by technical manuals or conventional experimental methods, and the problem to be solved by the utility model is 1. the conventional PERTII type flame-retardant pipe is provided with a flame-retardant layer, the utility model has the advantages that through the mutual combination of the components, the problem that the flame retardant property of the pipe is sharply reduced after the open fire or the high temperature breaks through the flame retardant layer is relieved, and the problem that the connecting area of the adjacent pipes is cracked due to the expansion and contraction effect of the heat after the high temperature is suffered.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. A flame retardant tubular product of the PERTII type, characterized in that: the composite pipe comprises a top pipe (1) and a bottom pipe (2), wherein an outer plated flame-retardant layer (7) is arranged on the outer wall of the top pipe (1) and the outer wall of the bottom pipe (2) in a circle, a first outer synthetic layer (13) is arranged on the middle end of the top pipe (1) in a circle in a hot-pressing bonding manner, a first inner synthetic layer (14) is arranged on the middle end of the first outer synthetic layer (13) in a hot-pressing bonding manner in a circle in a hot-pressing bonding manner, a second outer synthetic layer (15) is arranged on the middle end of the bottom pipe (2) in a circle in a hot-pressing bonding manner in a circle in a second outer synthetic layer (15) in a hot-pressing bonding manner, a central pipe (12) is fixedly connected on the inner walls of the first inner synthetic layer (14) and the second inner synthetic layer (16) in a circle in a fixed manner, a first flame-retardant filling layer (17) is uniformly arranged on the outer wall of the first outer synthetic layer (13) in a circle, a second flame-retardant filling layer (18) is uniformly arranged on the outer wall of the first inner synthetic layer (14) in a circle in a second synthetic layer (15) in a circle in a fixed manner, and a second type of flame-retardant filling layer (18) is uniformly arranged on the periphery of the outer wall of the second inner synthetic layer (16).

2. The flame retardant pipe of the PERTII type according to claim 1, wherein: the hot-melt male connector (8) is fixedly connected to the outer wall of the top pipe (1) in a circle, and the hot-melt female connector (10) is fixedly connected to the outer wall of the bottom of the top pipe (1) in a circle.

3. The flame retardant pipe of the PERTII type according to claim 1, wherein: the hot-melt connector is characterized in that a hot-melt male connector (8) is fixedly connected to the outer wall of the top of the bottom pipe (2) in a circle, a hot-melt female connector (10) is fixedly connected to the outer wall of the bottom pipe (2) in a circle, and the bottom of the top pipe (1) is connected with the bottom pipe (2) in a hot-melt manner.

4. The flame retardant pipe of the PERTII type according to claim 1, wherein: the pipe jacking device is characterized in that a first reinforcing pipe (3) is welded on the outer wall of the bottom end of the pipe jacking (1) in a circle, a second reinforcing pipe (4) is welded on the outer wall of the top end of the pipe jacking (2) in a circle, and the second reinforcing pipe (4) is welded on the outer wall of the bottom of the first reinforcing pipe (3) in a circle.

5. The flame retardant pipe of the PERTII type according to claim 1, wherein: a top position reinforcing ring (5) is connected to the outer wall of the top end of the top pipe (1) in a hot melting mode in a circle, and a bottom position reinforcing ring (6) is connected to the outer wall of the bottom end of the bottom pipe (2) in a hot melting mode in a circle.

6. A flame retardant pipe of the PERTII type according to claim 2 or 3, characterized in that: the hot melt male joint (8) is characterized in that a male joint convex ring (9) is fixedly connected to the outer wall of the top end of the hot melt male joint in a circle, and a female joint concave ring (11) is arranged on the inner wall of the bottom of the hot melt female joint (10) in a circle.

Images