CN218032024U

CN218032024U - Anticorrosive heat preservation elbow

Info

Publication number: CN218032024U
Application number: CN202221784361.6U
Authority: CN
Inventors: 肖徳振; 李国强; 肖恩志; 马玉庆
Original assignee: Cangzhou Canghai Pipe Fittings Group Co ltd
Current assignee: Cangzhou Canghai Pipe Fittings Group Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-13
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses an anticorrosive heat preservation elbow, interior return bend, outer tube and shutoff pipe, interior return bend is located the outer tube to the outer tube is worn out at the both ends of interior return bend, is provided with between interior return bend and the outer tube and fills the chamber, and it has insulation material to fill the intracavity packing, and the through-hole of shutoff pipe is worn out at the equal fixedly connected with in both ends of outer tube to the through-hole of shutoff pipe is worn out at the both ends of interior return bend, the outer wall and the contact of through-hole inner wall of interior return bend, with the contact site welded fastening of through-hole and interior return bend, the contact site welded fastening of shutoff pipe and outer tube. The utility model relates to a pipe fitting technical field, it has reinforcing heat preservation life-span, sound construction, corrosion-resistant characteristics.

Description

Anticorrosive heat preservation elbow

Technical Field

The utility model relates to a pipe fitting technical field, specific anticorrosive heat preservation elbow that says so.

Background

In a piping system, an elbow is a pipe that changes the direction of the piping. Large elbow pipe fittings are used in large pipe systems. Some large-scale elbows are for making it have the heat preservation effect at present, generally place interior conduit (work steel pipe) in outer pipeline (high density polyethylene outer tube), fill insulation material (polyurethane foam heat preservation) between interior conduit and the outer pipeline, later seal between with interior conduit and the outer pipeline through the sticky tape again, such elbow structure, make both ends sticky tape appear damaged after long because of time easily, then make inside insulation material cause the inefficacy because of the circumstances such as intaking, consequently, the heat preservation life-span is lower, and because of the sticky tape is fixed, make the connection between interior conduit and the outer pipeline firm inadequately.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point that exists among the prior art, the utility model aims at providing an increase heat preservation life-span, solid structure, corrosion-resistant elbow.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the utility model provides an anticorrosive heat preservation elbow, the interior return bend that includes, outer tube and shutoff pipe, interior return bend is located the outer tube, and the outer tube is worn out at the both ends of interior return bend, be provided with between interior return bend and the outer tube and fill the chamber, it has insulation material to fill the intracavity packing, the optional phenolic foam material of specific insulation material, and be provided with the through-hole on the shutoff pipe, a set of shutoff pipe of the equal fixedly connected with in both ends of outer tube, the through-hole is worn out at the both ends of interior return bend, the outer wall and the contact of through-hole inner wall of interior return bend, with the contact site welded fastening of through-hole and interior return bend, the contact site welded fastening of shutoff pipe and outer tube, just so with the outer tube, interior return bend, constitute a body structure between the shutoff pipe, and seal up insulation material in filling the intracavity.

In above-mentioned scheme, be provided with interior anticorrosive coating on the inner wall of incurved pipe, chromium-plated layer is chooseed for use to interior anticorrosive coating, is provided with outer anticorrosive coating on the outer wall of outer tube and stifled pipe, and outer anticorrosive coating adopts the selection to use anticorrosive paint layer.

In the scheme, the outer part of the outer anti-corrosion layer is fixedly connected with an outer heat-insulating layer, and the outer heat-insulating layer is a foamed cement layer.

Be different from prior art, the beneficial effects of the utility model reside in that, seal up insulation material between outer tube and incurvated pipe through the shutoff pipe, guarantee insulation material's leakproofness like this, make insulation material be difficult to appear damaging, the reinforcing heat preservation life-span, and the outer tube, incurvated pipe, welded fastening becomes integrative structure between the shutoff pipe, make the structure firmer, and simultaneously, inside chromium-plated layer that is provided with of incurvated pipe, make and guarantee that the incurvated pipe is inside can not produce the corruption, insulation material and the setting of outer heat preservation simultaneously, reducible heat transfer, play the heat preservation effect.

Drawings

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

fig. 2 is the utility model discloses well shutoff union coupling structure schematic diagram.

In the figure: 1 inner bent pipe, 2 outer sleeve pipes, 3 plugging pipes, 4 inner anticorrosive layers, 5 heat-insulating materials, 6 outer anticorrosive layers and 7 outer heat-insulating layers.

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.

The present embodiment provides an anticorrosive heat-insulating elbow, please refer to fig. 1 and fig. 2, which includes an inner elbow 1, an outer sleeve 2 and a plugging pipe 3 made of metal materials;

the thickness of the inner bent pipe 1 is 20mm, the length is 400mm, the bending angle is 135 degrees, meanwhile, in order to avoid corrosion in the inner bent pipe 1, an inner anticorrosive layer 4 with the thickness of 4mm is arranged on the inner wall of the inner bent pipe 1, and a chromium-plated layer can be selected;

the thickness of the outer sleeve 2 is 30mm, the length is 300mm, and the bending angle is 96 degrees;

the inner bent pipe 1 is sleeved in the outer sleeve 2, the outer sleeve 2 is worn out from two ends of the inner bent pipe 1, the wearing distance of two ends of the inner bent pipe 1 is the same, a filling cavity is arranged between the inner bent pipe 1 and the outer sleeve 2, the heat insulation material 5 is filled in the filling cavity, the specific heat insulation material 5 can be made of phenolic foam materials, a through hole is formed in each plugging pipe 3, a group of plugging pipes 3 are fixedly connected to two ends of the outer sleeve 2, the through holes are worn out from two ends of the inner bent pipe 1, the outer wall of the inner bent pipe 1 is in contact with the inner wall of the through hole, the sealing performance is guaranteed, the contact part of the through hole and the inner bent pipe 1 is welded and fixed, the contact part of the plugging pipes 3 and the outer sleeve 2 is welded and fixed, the outer sleeve 2, the inner bent pipe 1 and the plugging pipes 3 form an integrated structure, the heat insulation material 5 is sealed in the filling cavity, the heat insulation material 5 is not prone to damage, the heat insulation service life is prolonged, the outer sleeve 2, the inner bent pipe 1 and the plugging pipes 3 are welded and fixed into an integrated structure, and firmer.

The further optimization of this embodiment, be provided with 4 mm's outer anticorrosive coating 6 on the outer sleeve pipe 2 and the outer wall of stifled pipe, outer anticorrosive coating 6 adopts and selects with anticorrosive paint layer, and at the outer heat preservation 7 of the outside fixedly connected with 20mm of outer anticorrosive coating 6, concrete optional foaming cement layer for when having the heat preservation effect, reinforcing structure is firm.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. An anticorrosive heat preservation elbow which is characterized in that: including interior return bend (1), outer tube (2) and shutoff pipe (3), interior return bend (1) is located in outer tube (2), wear out at the both ends of interior return bend (1) outer tube (2), be provided with between interior return bend (1) and outer tube (2) and fill the chamber, it has insulation material (5) to fill the intracavity packing, be provided with the through-hole on shutoff pipe (3), the equal fixedly connected with in both ends of outer tube (2) is a set of shutoff pipe (3), wear out at the both ends of interior return bend (1) the through-hole, the outer wall of interior return bend (1) with the contact of through-hole inner wall, the contact position fixed connection of through-hole and interior return bend (1), the contact position fixed connection of shutoff pipe (3) and outer tube (2).

2. The corrosion-resistant heat-insulating elbow according to claim 1, characterized in that: an inner anticorrosive layer (4) is arranged on the inner wall of the inner elbow (1), and outer anticorrosive layers (6) are arranged on the outer sleeve (2) and the outer wall of the blocking pipe.

3. The anticorrosion heat-preservation elbow as claimed in claim 2, characterized in that: the outer part of the outer anticorrosive layer (6) is fixedly connected with an outer insulating layer (7).

4. The anticorrosion heat-preservation elbow as claimed in claim 2, characterized in that: the inner anticorrosive layer (4) is a chromium-plated layer, and the outer anticorrosive layer (6) is an anticorrosive paint layer.

5. The anticorrosion heat-preservation elbow as claimed in claim 3, wherein: the heat insulation material (5) is made of phenolic foam material, and the outer heat insulation layer (7) is made of foamed cement layer.