CN214618428U

CN214618428U - Prefabricated elbow of insulating tube

Info

Publication number: CN214618428U
Application number: CN202120838650.9U
Authority: CN
Inventors: 李安; 李永田
Original assignee: Shandong Haipo Pipe Technology Development Co ltd
Current assignee: Shandong Haipo Pipe Technology Development Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-11-05
Anticipated expiration: 2031-04-22

Abstract

The utility model relates to a prefabricated elbow technical field just discloses a prefabricated elbow of insulating tube, including the outer tube, the outer tube cover is established in the interior steel pipe outside. According to the prefabricated elbow of the heat preservation pipe, the first heat preservation layer and the second heat preservation layer are arranged, a good heat preservation effect is provided for the inner steel pipe, the inner sleeve made of cast steel is sleeved on the outer side of the inner steel pipe, strong supporting performance is provided for the outer sleeve, meanwhile, the inner wall of the second heat preservation layer is provided with the extrusion groove, a cavity is formed in the second heat preservation layer, the heat preservation effect of the second heat preservation layer is improved, the inner steel pipe can return to move after being vibrated in use by arranging the shock-proof rod, the first heat preservation layer and the second heat preservation layer are prevented from cracking, the heat preservation effect is reduced, and meanwhile, the service life of the elbow is prolonged; through setting up solid fixed ring one and solid fixed ring two formation and pouring the chamber, make the elbow pour insulation material with pouring intracavity portion behind the piping erection, make elbow and pipeline junction can not produce the heat preservation fault, improve the heat preservation effect.

Description

Prefabricated elbow of insulating tube

Technical Field

The utility model relates to a prefabricated elbow technical field specifically is a prefabricated elbow of insulating tube.

Background

The prefabricated heat-insulating elbow is one of heat-insulating pipe fittings, and is formed by tightly combining a high-density polyethylene outer sleeve, a polyurethane foam heat-insulating layer and an inner working steel pipe. The heat preservation elbow is mainly used for turning to of heat preservation straight tube, generally uses with insulating tube is supporting, is used for the compensatory action when designing according to heat preservation engineering pipeline, makes the elbow position also can have sufficient thermal insulation performance, standard elbow angle: 30 degrees, 45 degrees, 60 degrees, 90 degrees.

The general prefabricated elbow of insulating tube is all made in advance, and when laying the insulating tube, use with the insulating tube direct bonding, conveniently lay and improve the laying efficiency of insulating tube, but ordinary prefabricated elbow all does its heat preservation earlier and then lays when laying, and there is the gap at the heat preservation of prefabricated elbow and the heat preservation of heat preservation straight tube in actual work progress, and inevitable can take place pipeline vibrations when operation, leads to the heat preservation to throw off, and the heat preservation effect worsens, can lead to the inner tube heat of insulating tube to scatter and disappear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated elbow of insulating tube to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a prefabricated elbow of a heat preservation pipe comprises an outer sleeve, wherein the outer sleeve is sleeved outside an inner steel pipe, the surface of the inner steel pipe is sleeved with an inner sleeve, a heat preservation layer II is filled between the inner sleeve and the outer sleeve, the surface of the heat preservation layer II is fixedly connected with the inner wall of the outer sleeve, the inner wall of the heat preservation layer II is fixedly connected with the surface of the inner sleeve, an extrusion groove is formed in the inner wall of the heat preservation layer II, a heat preservation layer I is filled between the inner sleeve and the inner steel pipe, the surface of the heat preservation layer I is fixedly connected with the inner wall of the inner steel pipe, the surface of the inner steel pipe is sequentially sleeved with a mounting ring along an axis, the inner wall of the mounting ring is fixedly connected with the surface of the inner steel pipe, an extrusion plate is arranged on the inner wall of the extrusion groove in a sliding mode, the surface of the extrusion plate is fixedly connected with one end of a shockproof rod, and the other end of the shockproof rod penetrates through the inner sleeve and the heat preservation layer I, interior steel pipe both ends all run through the outer tube and extend to the outer tube outside, interior steel pipe is controlled both ends surface and all is overlapped and is equipped with solid fixed ring two, interior sleeve pipe is controlled both ends surface and all is overlapped and is equipped with solid fixed ring one.

Preferably, the outer sleeve is fixedly sleeved with a waterproof layer on the surface, the wear-resistant layer is fixedly sleeved on the surface of the waterproof layer, the outer sleeve is made of a high-density polyethylene material, the waterproof layer is made of a phenyl silicone rubber material, the wear-resistant layer is made of a phenolic resin material, and the outer sleeve has good waterproofness and wear resistance through the waterproof layer and the wear-resistant layer, so that the inner steel pipe is not contacted with water, and corrosion is avoided.

Preferably, the inner wall of the inner steel pipe is uniformly provided with an anticorrosive coating, the anticorrosive coating is a galvanized steel pipe layer, the inner sleeve is made of a cast steel material, and the thickness of the inner sleeve is 2mm, so that the inner wall of the inner steel pipe is prevented from being corroded.

Preferably, a plurality of groups of extrusion grooves are uniformly arranged along the axis of the inner steel pipe, each group of extrusion grooves is surrounded into a circle and is uniformly arranged on the inner wall of the heat insulation layer II, the heat insulation layer I is made of polyurethane foam material, and the heat insulation layer II is made of high-pressure low-foaming polyethylene material, so that a good heat insulation effect is provided for the inner steel pipe.

Preferably, the surface of the shockproof rod is in sliding connection with the inner wall of the inner sleeve pipe and the inner wall of the first heat preservation layer, the other end face of the shockproof rod is fixedly connected with the surface of the mounting ring, one end of the shockproof rod is fixedly connected with the mounting ring, and the other end of the shockproof rod extends into the extrusion groove, so that the inner steel pipe can recover displacement after being vibrated in use, the first heat preservation layer and the second heat preservation layer are prevented from generating cracks, the heat preservation effect is reduced, and meanwhile, the service life of the elbow is prolonged.

Preferably, a side face of the fixing ring is in contact with the heat preservation layer II, the outer surface of the fixing ring is fixedly connected with the inner wall of the outer sleeve, and the inner wall of the fixing ring is fixedly connected with the surface of the inner sleeve.

Preferably, solid fixed ring external surface and interior sleeve pipe inner wall fixed connection, gu fixed ring two inner walls and interior steel pipe fixed surface are connected, gu fixed ring two sides and heat preservation first contact, gu fixed ring two opposite sides forms with interior steel pipe surface and interior sleeve pipe inner wall and pours the chamber, through setting up solid fixed ring one and solid fixed ring two formation and pour the chamber, make the elbow with the piping erection back pour the intracavity portion pour insulation material, make elbow and pipe connection department can not produce the heat preservation fault, improve the heat preservation effect.

Compared with the prior art, the beneficial effects of the utility model are that: the prefabricated elbow of the heat preservation pipe is characterized in that a first heat preservation layer and a second heat preservation layer are arranged, a good heat preservation effect is provided for an inner steel pipe, an inner sleeve made of cast steel is sleeved on the outer side of the inner steel pipe, strong supporting performance is provided for the outer sleeve, meanwhile, an extrusion groove is formed in the inner wall of the second heat preservation layer, a cavity is formed in the second heat preservation layer, the heat preservation effect of the second heat preservation layer is improved, one end of a shock-proof rod is fixedly connected with an installation ring, and the other end of the shock-proof rod extends into the extrusion groove, so that the inner steel pipe can recover displacement after being vibrated in use, cracks are prevented from being generated in the first heat preservation layer and the second heat preservation layer, the heat preservation effect is reduced, and meanwhile, the service life of the elbow is prolonged; through setting up solid fixed ring one and solid fixed ring two formation and pouring the chamber, make the elbow pour insulation material with pouring intracavity portion behind the piping erection, make elbow and pipeline junction can not produce the heat preservation fault, improve the heat preservation effect.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is an overall cross-sectional view of the present invention;

FIG. 3 is a front sectional view of the present invention;

fig. 4 is an enlarged view of the area a in fig. 3 according to the present invention.

In the figure: the anti-vibration device comprises an outer sleeve 1, an inner steel tube 2, an inner sleeve 3, a first heat-insulating layer 4, a second heat-insulating layer 5, an extrusion groove 6, an extrusion plate 7, an anti-vibration rod 8, a mounting ring 9, a waterproof layer 10, a wear-resistant layer 11, an anti-corrosion layer 12, a first fixing ring 13 and a second fixing ring 14.

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. 1-4, the present invention provides a technical solution: a prefabricated elbow of a heat preservation pipe comprises an outer sleeve 1, a waterproof layer 10 is fixedly sleeved on the surface of the outer sleeve 1, a wear-resistant layer 11 is fixedly sleeved on the surface of the waterproof layer 10, the outer sleeve 1 is made of a high-density polyethylene material, the waterproof layer 10 is made of a phenyl silicone rubber material, the wear-resistant layer 11 is made of a phenolic resin material, the outer sleeve 1 is sleeved on the outer side of an inner steel pipe 2, an anti-corrosion layer 12 is uniformly arranged on the inner wall of the inner steel pipe 2, the anti-corrosion layer 12 is a galvanized steel pipe layer, the inner sleeve 3 is made of a cast steel material, the thickness of the inner sleeve 3 is 2mm, an inner sleeve 3 is sleeved on the surface of the inner steel pipe 2, a heat preservation layer two 5 is filled between the inner sleeve 3 and the outer sleeve 1, the surface of the heat preservation layer two 5 is fixedly connected with the inner wall of the outer sleeve 1, the inner wall of the heat preservation layer two 5 is fixedly connected with the surface of the inner sleeve 3, an extrusion groove 6 is provided with a plurality of groups uniformly along the axis of the inner steel pipe 2, each group of extrusion grooves 6 are enclosed into a circle and evenly arranged on the inner wall of the insulation layer II 5, the insulation layer I4 is made of polyurethane foam material, the insulation layer II 5 is made of high-pressure low-foaming polyethylene material, the insulation layer I4 is filled between the inner sleeve pipe 3 and the inner steel pipe 2, the surface of the insulation layer I4 is fixedly connected with the inner wall of the inner sleeve pipe 3, the surface of the insulation layer I4 is fixedly connected with the surface of the inner steel pipe 2, the surface of the inner steel pipe 2 is sequentially sleeved with a mounting ring 9 along the axis, the inner wall of the mounting ring 9 is fixedly connected with the surface of the inner steel pipe 2, the inner wall of the extrusion groove 6 is slidably provided with an extrusion plate 7, the surface of the extrusion plate 7 is fixedly connected with one end of a shockproof rod 8, the other end of the shockproof rod 8 penetrates through the inner sleeve pipe 3 and the insulation layer I4, the surface of the shockproof rod 8 is slidably connected with the inner wall of the inner sleeve pipe 3 and the inner wall of the insulation layer I4, and the other end surface of the shockproof rod 8 is fixedly connected with the surface of the

mounting ring

9, 2 both ends of interior steel pipe all run through outer tube 1 and extend to the outer tube 1 outside, interior steel pipe 2 is controlled both ends surface and all is overlapped and is equipped with solid fixed ring two 14, gu fixed ring two 14 surfaces and interior sleeve pipe 3 inner wall fixed connection, gu fixed ring two 14 inner walls and interior steel pipe 2 fixed surface are connected, gu fixed ring two 14 sides and heat preservation one 4 contacts, gu fixed ring two 14 opposite sides and interior steel pipe 2 surfaces and interior sleeve pipe 3 inner wall form and pour the chamber, interior sleeve pipe 3 left and right both ends surface all overlaps and is equipped with solid fixed ring one 13, gu fixed ring one 13 sides and heat preservation two 5 contacts, gu fixed ring one 13 surfaces and 1 inner wall fixed connection of outer tube, gu fixed ring one 13 inner walls and interior sleeve pipe 3 fixed surface are connected.

When the elbow is used, the first heat-insulating layer 4 and the second heat-insulating layer 5 are arranged, a good heat-insulating effect is provided for the inner steel pipe 2, the inner sleeve pipe 3 made of cast steel is sleeved on the outer side of the inner steel pipe 2, the outer sleeve pipe 1 is provided with strong supporting performance, meanwhile, the inner wall of the second heat-insulating layer 5 is provided with the extrusion groove 6, a cavity is formed in the second heat-insulating layer 5, the heat-insulating effect of the second heat-insulating layer 5 is improved, one end of the shockproof rod 8 is fixedly connected with the mounting ring 9, the other end of the shockproof rod extends into the extrusion groove 6, so that the inner steel pipe 2 can recover displacement after being vibrated in use, the first heat-insulating layer 4 and the second heat-insulating layer 5 are prevented from generating cracks to reduce the heat-insulating effect, and the service life of the elbow is prolonged; a pouring cavity is formed by arranging the first fixing ring 13 and the second fixing ring 14, so that the elbow is poured with a heat-insulating material after being installed on a pipeline, a heat-insulating fault is not generated at the joint of the elbow and the pipeline, and the heat-insulating effect is improved.

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 prefabricated elbow of insulating tube, includes outer tube (1), its characterized in that: the outer sleeve (1) is sleeved outside the inner steel pipe (2), the surface of the inner steel pipe (2) is sleeved with an inner sleeve (3), a heat preservation layer II (5) is filled between the inner sleeve (3) and the outer sleeve (1), the surface of the heat preservation layer II (5) is fixedly connected with the inner wall of the outer sleeve (1), the inner wall of the heat preservation layer II (5) is fixedly connected with the surface of the inner sleeve (3), an extrusion groove (6) is formed in the inner wall of the heat preservation layer II (5), a heat preservation layer I (4) is filled between the inner sleeve (3) and the inner steel pipe (2), the surface of the heat preservation layer I (4) is fixedly connected with the inner wall of the inner sleeve (3), the inner wall of the heat preservation layer I (4) is fixedly connected with the surface of the inner steel pipe (2), the surface of the inner steel pipe (2) is sequentially sleeved with a mounting ring (9) along an axis, and the inner wall of the mounting ring (9) is fixedly connected with the surface of the inner steel pipe (2), extrusion groove (6) inner wall slides and is provided with stripper plate (7), stripper plate (7) surface and shockproof pole (8) one end fixed connection, the pole (8) other end that takes precautions against earthquakes runs through interior sleeve pipe (3) and heat preservation (4) setting, interior steel pipe (2) both ends all run through outer tube (1) and extend to the outer tube (1) outside, interior steel pipe (2) are controlled both ends surface and are all overlapped and are equipped with solid fixed ring two (14), interior sleeve pipe (3) are controlled both ends surface and are all overlapped and are equipped with solid fixed ring one (13).

2. The preformed elbow for an insulating pipe as claimed in claim 1, wherein: the outer sleeve is characterized in that a waterproof layer (10) is fixedly sleeved on the surface of the outer sleeve (1), a wear-resistant layer (11) is fixedly sleeved on the surface of the waterproof layer (10), the outer sleeve (1) is made of a high-density polyethylene material, the waterproof layer (10) is made of a phenyl silicone rubber material, and the wear-resistant layer (11) is made of a phenolic resin material.

3. The preformed elbow for an insulating pipe as claimed in claim 1, wherein: the inner wall of the inner steel pipe (2) is uniformly provided with an anticorrosive coating (12), the anticorrosive coating (12) is a galvanized steel pipe layer, the inner sleeve (3) is made of a cast steel material, and the thickness of the inner sleeve (3) is 2 mm.

4. The preformed elbow for an insulating pipe as claimed in claim 1, wherein: the extrusion grooves (6) are uniformly provided with multiple groups along the axis of the inner steel pipe (2), each group of extrusion grooves (6) enclose a circle and are uniformly arranged on the inner wall of the second heat insulation layer (5), the first heat insulation layer (4) is made of polyurethane foam material, and the second heat insulation layer (5) is made of high-pressure low-foaming polyethylene material.

5. The preformed elbow for an insulating pipe as claimed in claim 1, wherein: the surface of the shockproof rod (8) is connected with the inner wall of the inner sleeve (3) and the inner wall of the first heat-insulating layer (4) in a sliding mode, and the other end face of the shockproof rod (8) is fixedly connected with the surface of the mounting ring (9).

6. The preformed elbow for an insulating pipe as claimed in claim 1, wherein: the side face of the first fixing ring (13) is in contact with the second heat-insulating layer (5), the outer surface of the first fixing ring (13) is fixedly connected with the inner wall of the outer sleeve (1), and the inner wall of the first fixing ring (13) is fixedly connected with the surface of the inner sleeve (3).

7. The preformed elbow for an insulating pipe as claimed in claim 1, wherein: the outer surface of the second fixing ring (14) is fixedly connected with the inner wall of the inner sleeve (3), the inner wall of the second fixing ring (14) is fixedly connected with the surface of the inner steel pipe (2), the side surface of the second fixing ring (14) is in contact with the first heat-insulating layer (4), and the other side of the second fixing ring (14) forms a pouring cavity with the surface of the inner steel pipe (2) and the inner wall of the inner sleeve (3).