CN217539936U

CN217539936U - Fire-proof heat-insulating polyethylene pipe

Info

Publication number: CN217539936U
Application number: CN202220835388.7U
Authority: CN
Inventors: 边志强; 李元虎; 杨财; 张荟中
Original assignee: Gansu Tengyuan Building Materials Technology Co ltd
Current assignee: Gansu Tengyuan Building Materials Technology Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-10-04
Anticipated expiration: 2032-04-12

Abstract

The utility model relates to a fire prevention adiabatic polyethylene pipe relates to tubular product technical field. Mainly to the general problem of tubular product fire prevention heat-proof quality among the prior art, provide following technical scheme, including the main part layer and set up the inside lining steel layer that is used for strengthening inner wall intensity in the main part layer inboard, the outside on main part layer is fixed with the flame retardant coating that is used for improving fire resistance through tie coat one, the outside of flame retardant coating is fixed with through tie coat two and is used for thermal-insulated insulating layer, the outside of insulating layer still is provided with the outer protective layer that improves outer intensity, the both ends on main part layer all are fixed with the coupling assembling that is used for the pipe connection. The utility model discloses possess good fire prevention heat resistance, it is high to have structural strength simultaneously, simple to operate's performance characteristics.

Description

Fireproof heat-insulating polyethylene pipe

Technical Field

The utility model relates to a tubular product technical field especially relates to a fire prevention adiabatic polyethylene pipe.

Background

In chinese patent No. CN202074138U, a heat-resistant polyethylene composite cross-linked polyethylene pipe is proposed, which has a three-layer structure including a cross-linked polyethylene pipe layer disposed in an inner layer, a heat-resistant polyethylene pipe layer disposed in an outer layer, and a high-temperature hot-melt adhesive layer combining the heat-resistant polyethylene pipe layer and the cross-linked polyethylene pipe layer. The utility model discloses owing to adopted above-mentioned technical scheme, combine heat-resisting polyethylene material and crosslinked polyethylene material through high temperature hot melt adhesive, tubular product not only has excellent temperature resistant pressure resistance like this, can carry out the hot melt connection moreover, ensures entire system's reliability.

In the technical scheme, the polyethylene pipe made of the heat-resistant polyethylene matched with the crosslinked polyethylene is adopted, but the heat-resistant polyethylene outside the polyethylene pipe does not have fireproof capacity, has general heat-insulating performance, does not provide good structural strength, and has weak pressure resistance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a polyethylene pipe that possesses good fire prevention heat-proof quality to the problem that exists among the background art.

The technical scheme of the utility model: the utility model provides a fire prevention adiabatic polyethylene pipe, includes the main part layer and sets up the inside lining steel layer that is used for strengthening inner wall intensity in the main part layer inboard, the outside on main part layer is fixed with the flame retardant coating that is used for improving fire resistance through tie coat one, the outside of flame retardant coating is fixed with through tie coat two and is used for thermal-insulated insulating layer, the outside on insulating layer still is provided with the outer protective layer that improves outer intensity, the both ends on main part layer all are fixed with the coupling assembling that is used for the pipe connection.

Preferably, the main body layer comprises a first PE layer fixed with the lining steel layer and a second PE layer fixed with the fireproof layer through a first bonding layer, and a framework layer used for improving the overall structural strength is further arranged between the first PE layer and the second PE layer.

Preferably, the framework layer comprises a plurality of longitudinal framework pieces which are distributed on the circumference of the outer circumference surface of the PE layer at equal intervals, and a plurality of annular framework pieces fixed with the longitudinal framework pieces are arranged on the longitudinal framework pieces at equal intervals.

Preferably, the flame retardant coating adopts for the asbestos cloth material and passes through tie coat one with the outside skew of PE layer around the package and fix.

Preferably, the heat insulation layer comprises heat insulation foam fixed with the fireproof layer through a second bonding layer, a plurality of vacant channels are arranged in the heat insulation foam in the circumferential direction at equal intervals, and phase change materials are arranged in the vacant channels.

Preferably, the outer protection layer comprises a heat radiation prevention layer fixed on the outer side of the heat insulation layer and used for reducing radiation, and an aluminum protection layer used for improving the strength of the outer layer is arranged on the outer side of the heat radiation prevention layer.

Preferably, the outer side of the second PE layer is sleeved with an annular sealing member fixed to the end of the aluminum protective layer.

Preferably, coupling assembling is including fixing the flange at main part layer both ends, the recess that is used for increasing the sealing ring is all offered at the both ends of flange, the outside activity cover on main part layer is equipped with a pair of flange ring, every the equidistant a plurality of fixed orificess that are used for through the bolt fastening of circumferencial direction have been seted up to the flange ring.

Compared with the prior art, the utility model discloses following profitable technological effect has:

good whole shape is played on the inside lining steel layer that is located the inboard through the increase, do benefit to the casting that the main part becomes and cover, the casing layer that cooperates in the main part layer simultaneously can strengthen holistic structural strength, the fire behavior and the heat resistance of flame retardant coating and the thermal-insulated effect of insulating layer in the cooperation, can improve fire prevention and thermal-insulated ability, can reduce outer thermal radiation through the heat-proof radiation layer in the external protection layer, can improve outer protective capacities through the aluminium protective layer, the connection structure of tip conveniently connects in the cooperation.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic view of the internal structure of fig. 1.

Reference numerals: 1. lining a steel layer; 2. a first PE layer; 3. a framework layer; 4. a second PE layer; 5. a first bonding layer; 6. a fire-resistant layer; 7. a second adhesive layer; 9. a thermal insulation layer; 90. a thermal insulating foam; 91. an empty channel; 92. a phase change material; 10. a heat radiation prevention layer; 11. an aluminum protective layer; 12. an annular closure member; 13. a flange; 14. and (4) a flange ring.

Detailed Description

The following describes the technical solution of the present invention with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-3, the utility model provides a fire-proof heat-insulating polyethylene pipe, including the main part layer and set up the inside lining steel layer 1 that is used for strengthening the inner wall intensity in the main part layer, the main part layer includes the PE layer one 2 fixed with inside lining steel layer 1 and the PE layer two 4 fixed with flame retardant coating 6 through the tie coat one 5, still be provided with the casing ply 3 that is used for improving overall structure intensity between PE layer one 2 and PE layer two 4, casing ply 3 includes by a plurality of vertical casing pieces that the equidistant distribution set up in circumference on PE layer one 2 outer periphery, a plurality of vertical casings are equidistantly provided with a plurality of annular casing pieces fixed with vertical casing piece; a fireproof layer 6 for improving fire resistance is fixed on the outer side of the main body layer through a first bonding layer 5, the fireproof layer 6 is made of asbestos cloth and is obliquely fixed with the outer side of the second PE layer 4 in a wrapping mode through the first bonding layer 5; a heat insulation layer 9 for heat insulation is fixed on the outer side of the fireproof layer 6 through a second bonding layer 7, an outer protection layer for improving the strength of the outer layer is further arranged on the outer side of the heat insulation layer 9, the outer protection layer comprises a heat radiation prevention layer 10 which is fixed on the outer side of the heat insulation layer 9 and used for reducing radiation, and an aluminum protection layer 11 for improving the strength of the outer layer is arranged on the outer side of the heat radiation prevention layer 10; the both ends on main body layer all are fixed with the coupling assembling that is used for the pipe connection, and coupling assembling is including fixing flange 13 at main body layer both ends, and the recess that is used for increasing the sealing ring is all offered at flange 13's both ends, and the outside activity cover on main body layer is equipped with a pair of flange ring 14, and the circumferencial direction is equidistant on every flange ring 14 to be offered a plurality of fixed orificess that are used for through the bolt fastening.

In this embodiment, play good wholeness through increasing the inside lining steel layer 1 that is located the inboard, make things convenient for the casting of main part layer to cover, overall structural strength can be strengthened to casing layer 3 in cooperation main part layer, flame retardant coating 6's fire behavior and heat resistance and insulating layer 9's thermal-insulated effect in the cooperation, can improve fire prevention and thermal-insulated ability, strengthen fixed stability through tie coat one 5 and tie coat two 7, can reduce outer heat radiation through heat-proof radiation layer 10 in the outer protective layer, can improve outer protective capability through aluminium protective layer 11, flange ring 14 in the connection structure of cooperation upper end is favorable to the interlude installation of bolt and nut, and rotatable flange ring 14 makes things convenient for the pipe connection, the recess accessible that adds the sealing washer and improves the leakproofness.

Example two

As shown in fig. 1-3, the utility model provides a fire-proof heat-insulating polyethylene pipe, including the main body layer and set up the inside lining steel layer 1 that is used for strengthening the inner wall intensity in the main body layer, the main body layer includes the PE layer one 2 fixed with lining steel layer 1 and the PE layer two 4 fixed with flame retardant coating 6 through the tie coat one 5, still be provided with the skeleton layer 3 that is used for improving overall structure intensity between PE layer one 2 and PE layer two 4, the skeleton layer 3 includes by a plurality of vertical skeleton pieces that are arranged by equidistant distribution circumference on PE layer one 2 outer circumference, a plurality of vertical skeleton pieces that are equidistant to be provided with a plurality of annular skeleton pieces fixed with vertical skeleton piece; the outer side of the second PE layer 4 is sleeved with an annular closing piece 12 fixed with the end part of the aluminum protective layer 11; a fireproof layer 6 for improving fire resistance is fixed on the outer side of the main body layer through a first bonding layer 5, the fireproof layer 6 is made of asbestos cloth and is obliquely fixed with the outer side of the second PE layer 4 in a wrapping mode through the first bonding layer 5; a heat insulation layer 9 for heat insulation is fixed on the outer side of the fire-proof layer 6 through a second bonding layer 7, the heat insulation layer 9 comprises heat insulation foam 90 fixed with the fire-proof layer 6 through the second bonding layer 7, a plurality of vacant channels 91 are arranged in the heat insulation foam 90 at equal intervals in the circumferential direction, and phase change materials 92 are arranged in each vacant channel 91; an outer protective layer for improving the strength of the outer layer is arranged on the outer side of the heat insulation layer 9, the outer protective layer comprises a heat radiation prevention layer 10 which is fixed on the outer side of the heat insulation layer 9 and used for reducing radiation, and an aluminum protective layer 11 for improving the strength of the outer layer is arranged on the outer side of the heat radiation prevention layer 10; the both ends on main body layer all are fixed with the coupling assembling that is used for the pipe connection, and coupling assembling is including fixing flange 13 at main body layer both ends, and the recess that is used for increasing the sealing ring is all offered at flange 13's both ends, and the outside activity cover on main body layer is equipped with a pair of flange ring 14, and the circumferencial direction is equidistant on every flange ring 14 to be offered a plurality of fixed orificess that are used for through the bolt fastening.

In the embodiment, the thermal insulation effect can be realized by additionally arranging the thermal insulation foam 90 in the thermal insulation layer 9, and the rapid temperature change of the pipe can be reduced by matching with the special characteristics of the phase-change material 92 arranged in the thermal insulation foam 90; the added annular closing part 12 can close the multilayer structure to ensure the integrity.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. The utility model provides a fire prevention adiabatic polyethylene pipe which characterized in that: including the main part layer and set up inside lining steel layer (1) that is used for strengthening inner wall intensity at the main part layer inboard, the outside of main part layer is fixed with flame retardant coating (6) that are used for improving fire resistance through tie coat one (5), the outside of flame retardant coating (6) is fixed with insulating layer (9) that are used for thermal-insulated through tie coat two (7), the outside of insulating layer (9) still is provided with the outer protective layer that improves outer intensity, the both ends on main part layer all are fixed with the coupling assembling that is used for the pipe connection.

2. The fire-proof heat-insulating polyethylene pipe material as claimed in claim 1, wherein: the main body layer comprises a first PE layer (2) fixed with the lining steel layer (1) and a second PE layer (4) fixed with the fireproof layer (6) through a first bonding layer (5), and a framework layer (3) used for improving the strength of the whole structure is further arranged between the first PE layer (2) and the second PE layer (4).

3. The fire-proof heat-insulating polyethylene pipe as claimed in claim 2, wherein: the framework layer (3) comprises a plurality of longitudinal framework pieces which are distributed on the outer circumferential surface of the PE layer I (2) at equal intervals and are circumferentially arranged, and a plurality of annular framework pieces fixed with the longitudinal framework pieces are arranged on the longitudinal frameworks at equal intervals.

4. The fire-proof heat-insulating polyethylene pipe as claimed in claim 1, wherein: the fireproof layer (6) is made of asbestos cloth and is fixed through a bonding layer (5) in a wrapping mode with the PE layer II (4) in the outer side in an inclined mode.

5. The fire-proof heat-insulating polyethylene pipe as claimed in claim 1, wherein: the heat insulation layer (9) comprises heat insulation foam (90) fixed with the fire protection layer (6) through a second bonding layer (7), a plurality of vacant channels (91) are arranged in the heat insulation foam (90) in the circumferential direction at equal intervals, and phase change materials (92) are arranged inside each vacant channel (91).

6. The fire-proof heat-insulating polyethylene pipe material as claimed in claim 5, wherein: the outer protective layer comprises a heat radiation prevention layer (10) which is fixed on the outer side of the heat insulation layer (9) and used for reducing radiation, and an aluminum protective layer (11) used for improving the strength of the outer layer is arranged on the outer side of the heat radiation prevention layer (10).

7. The fire-proof heat-insulating polyethylene pipe as claimed in claim 2, wherein: and an annular closing piece (12) fixed with the end part of the aluminum protective layer (11) is sleeved on the outer side of the PE layer II (4).

8. The fire-proof heat-insulating polyethylene pipe material as claimed in claim 1, wherein: coupling assembling is including fixing flange (13) at main part layer both ends, the recess that is used for increasing the sealing ring is all offered at the both ends of flange (13), the outside activity cover on main part layer is equipped with a pair of flange ring (14), every the circumferencial direction is equidistant to be offered a plurality of fixed orificess that are used for through the bolt fastening on flange ring (14).