CN209762555U

CN209762555U - lining type anti-corrosion pipe fitting with reinforcing structure and isolation layer

Info

Publication number: CN209762555U
Application number: CN201822161644.5U
Authority: CN
Inventors: 洪厚军
Original assignee: JIANGSU RUIPU ANTICORROSION EQUIPMENT CO Ltd
Current assignee: JIANGSU RUIPU ANTICORROSION EQUIPMENT CO Ltd
Priority date: 2018-12-22
Filing date: 2018-12-22
Publication date: 2019-12-10
Anticipated expiration: 2028-12-22

Abstract

The utility model relates to an inner lining type anti-corrosion pipe fitting with a reinforcing structure and an isolating layer, which comprises a pipe fitting body and an anti-corrosion inner lining layer, wherein the inner wall of the pipe fitting body is provided with a groove, the anti-corrosion inner lining layer extends into the groove of the pipe fitting body and is connected with the groove to form an integral structure, and the isolating layer is arranged between the anti-corrosion inner lining layer and the inner wall of the pipe fitting body as well as; the isolation layer is made of plastics or paint and covers the inner wall of the pipe fitting body and the surface of the groove of the pipe fitting body in an injection molding or spraying mode; the grooves comprise annular grooves perpendicular to the axis of the pipe fitting and strip-shaped grooves parallel to the axis of the pipe fitting; the groove is a dovetail groove. The utility model discloses the dovetail is seted up to pipe fitting body inner wall to add the isolation layer between anticorrosive inner liner and pipe fitting body, not only make anticorrosive inner liner joint strength higher, isolated in-process metal ion's of moulding plastics infiltration and pollution moreover make anticorrosive inner liner cleaner, thereby guarantee that the chemical cleaning agent does not receive the pollution.

Description

lining type anti-corrosion pipe fitting with reinforcing structure and isolation layer

Technical Field

The utility model belongs to the technical field of sealed container and pipeline annex technique and specifically relates to an anticorrosive pipe fitting of interior bushing type with additional strengthening and isolation layer.

Background

On 27 days 6 months 6 in 2017, an authorization publication No. CN206277739 discloses a utility model patent entitled "fluoroplastic composite anticorrosive structure", with a patent number of 201621294946.4. Its compound anticorrosive structure includes: the fluoroplastic plate is provided with a plurality of through holes, and the metal plate is positioned on one side of the fluoroplastic plate; the metal plate is provided with a plurality of slotted holes which are in one-to-one correspondence with the through holes; and the pins penetrate through the through holes and are nailed into the slotted holes, and the pins are used for fixing the fluoroplastic plate on the metal plate. The utility model discloses an it is in the same place to take metal sheet and fluoroplastics board complex for the joint strength increase of fluoroplastics board and metal sheet, but open a plurality of through-holes that have on the fluoroplastics board and can bring the problem of the easy seepage of medium again.

In the production of semiconductor devices, silicon wafers are the core material for the fabrication of semiconductor devices. Since a free force field exists on the surface of the silicon wafer, impurity particles in contact with the silicon wafer are attracted by the free force field, for example, some unfavorable impurities (organic impurities and inorganic impurities) contaminate the surface of the silicon wafer, which often changes the properties of the semiconductor surface, and for metal ion contamination, chemical methods must be used to clean the contamination. Therefore, the semiconductor industry has extremely high requirements on containers and pipelines for storing and delivering chemical cleaning agents, and cannot generate metal ion pollution.

At present, the pipeline and the pipe fitting for the semiconductor industry are usually isolated from metal and chemical cleaning agents through an anti-corrosion inner liner layer obtained by injection molding in the metal pipe fitting, but a small amount of metal ions still permeate into the injection molding inner liner layer in the injection molding operation process of pipe fitting processing, so that the chemical cleaning agents can be possibly polluted during use, and further the product quality of a semiconductor device is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pipe fitting body and anticorrosive inner liner joint strength are high to add the interior lining formula anticorrosive pipe fitting that is equipped with additional strengthening and isolation layer of isolation layer between anticorrosive inner liner and pipe fitting body inner wall.

The purpose of the utility model is realized by adopting the following technical scheme:

Anticorrosive pipe fitting of interior bushing type with additional strengthening and isolation layer, including pipe fitting body and anticorrosive inner liner layer, the inner wall at the pipe fitting body is fixed to the anticorrosive inner liner layer, the inner wall of pipe fitting body is equipped with a plurality of recesses, the anticorrosive inner liner layer extends and fills in the recess of pipe fitting body and connects and form overall structure.

As the utility model discloses a preferred technical scheme, be equipped with the isolation layer between anticorrosive inner liner and pipe fitting body inner wall and the recess.

As the utility model discloses a preferred technical scheme, the material of isolation layer includes plastics or coating, and the isolation layer covers the surface of pipe fitting body inner wall and recess through moulding plastics or spraying mode.

As the utility model discloses a preferred technical scheme, the recess includes the annular groove of perpendicular to pipe fitting axis to and the strip recess of parallel and pipe fitting axis.

As the preferred technical scheme of the utility model, the recess is established to the dovetail.

As the utility model discloses a preferred technical scheme, the pipe fitting body is made by metal material, and the pipe fitting body includes pipeline, tower section, tee bend, cross, elbow, reducer, pipe cap, coupling, nipple joint.

As the preferred technical scheme of the utility model, anticorrosive inner liner layer is made by fluoroplastics, including PFA, PTFE, PVDF, FEP, ECTFE, ETFE.

as the utility model discloses an optimized technical scheme, anticorrosive inner liner is through moulding plastics mode and pipe fitting body and groove connection and fixed.

The utility model has the advantages that: compared with the prior art, the utility model discloses set up the dovetail at pipe fitting body inner wall to add the isolation layer between anticorrosive inner liner and pipe fitting body inner wall, not only make pipe fitting body and anticorrosive inner liner joint strength higher, isolated pipe fitting injection moulding in-process metal ion's infiltration and pollution moreover, make the anticorrosive inner liner of moulding plastics cleaner more clean, thereby guarantee that the chemical cleaner does not receive the pollution.

The utility model discloses not only solved current anticorrosive inner liner of fluoroplastics and metal pipe fitting body expansion coefficient and differed greatly, expend with heat and contract with cold and arouse the defect that drops easily, solved traditional mode metal ion of moulding plastics simultaneously moreover and easily permeated the inner liner of moulding plastics to pollute the problem of chemical cleaner, thereby can further improve semiconductor device's product quality.

Drawings

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

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic view of the partial sectional structure of the dovetail groove of the present invention.

In the figure: 1. the pipe fitting body, 2, anticorrosive inner liner, 3, strip recess, 4, annular groove, 5, flange, 6, isolation layer.

Detailed Description

The invention will be further described with reference to the following detailed description of the embodiments with reference to the accompanying drawings:

Example one

As shown in fig. 1 and 3, the anticorrosive pipe fitting of interior bushing type with additional strengthening and isolation layer, including pipe fitting body 1 and anticorrosive inner liner 2, anticorrosive inner liner 2 is fixed at the inner wall of pipe fitting body 1, and the inner wall of pipe fitting body 1 is equipped with a plurality of strip recesses 3, and anticorrosive inner liner 2 extends to fill in the recess 3 of pipe fitting body 1 and connects and form overall structure. An isolation layer 6 is arranged between the anti-corrosion inner liner layer 2 and the inner wall of the pipe fitting body 1 and the groove 3.

The two ends of the pipe fitting body 1 are provided with flanges 5, the isolation layer 6 is made of plastic or paint, the isolation layer 6 covers the inner wall of the pipe fitting body 1 and the surfaces of the grooves 3 of the isolation layer in an injection molding or spraying mode, the strip-shaped grooves 3 are parallel to the axis of the pipe fitting, and the strip-shaped grooves 3 are arranged into dovetail grooves.

This embodiment pipe fitting body 1 is made by metal material, and pipe fitting body 1 includes pipeline, tower section, tee bend, cross, elbow, reducer, pipe cap, coupling, nipple joint. The anti-corrosion inner lining layer 2 is made of fluoroplastic and comprises PFA, PTFE, PVDF, FEP, ECTFE and ETFE. The anti-corrosion inner liner layer 2 is connected and fixed with the isolation layer 6 in an injection molding mode.

Example two

As shown in fig. 2 and 3, the anticorrosive pipe fitting of interior bushing type with additional strengthening and isolation layer, including pipe fitting body 1 and anticorrosive inner liner 2, anticorrosive inner liner 2 is fixed at the inner wall of pipe fitting body 1, and the inner wall of pipe fitting body 1 is equipped with a plurality of annular grooves 4, and anticorrosive inner liner 2 extends to fill in the annular groove 4 of pipe fitting body 1 to connect and form overall structure. And an isolation layer 6 is arranged between the anti-corrosion inner liner layer 2 and the inner wall of the pipe fitting body 1 and the groove 4.

The both ends of this embodiment pipe fitting body 1 are equipped with flange 5, the material of isolation layer 6 includes plastics or coating, and isolation layer 6 covers the surface of pipe fitting body 1 inner wall and its recess 4 through moulding plastics or spraying mode, and annular groove 4 perpendicular to pipe fitting axis, annular groove 4 establishes to the dovetail.

The utility model discloses above-mentioned embodiment one and embodiment two all use flanged short pipeline or tower festival as an example, the dovetail has been seted up to pipe fitting body inner wall, and before moulding plastics and form anticorrosive inner liner, add the isolation layer at pipe fitting body internal surface, effectively isolated pipe fitting tradition injection moulding process in-process metal ion's infiltration and pollution, make anticorrosive inner liner cleaner, thereby guaranteed that chemical cleaning agent does not receive the pollution, and the joint strength of pipe fitting body and anticorrosive inner liner is higher, thereby can further improve semiconductor device's product quality.

The above embodiments are only for illustrating the conception and technical features of the present invention, and the purpose thereof is to make the technical personnel skilled in the art understand the technical solution and implementation mode of the present invention, and thus the protection scope of the present invention can not be limited thereby. All equivalent substitutions or equivalent changes made according to the technical scheme of the invention are intended to be covered by the protection scope of the claims of the invention.

Claims

1. The utility model provides an anticorrosive pipe fitting of interior bushing type with additional strengthening and isolation layer, includes pipe fitting body and anticorrosive inner liner, and the inner wall at the pipe fitting body is fixed to anticorrosive inner liner, characterized by: the inner wall of the pipe fitting body is provided with a plurality of grooves, and the anti-corrosion lining layer extends into the grooves of the pipe fitting body and is connected to form an integral structure;

An isolation layer is arranged between the anti-corrosion inner liner layer and the inner wall of the pipe fitting body and the groove of the pipe fitting body; the isolation layer is made of plastic or paint, and covers the inner wall of the pipe fitting body and the surface of the groove of the pipe fitting body in an injection molding or spraying mode.

2. The corrosion-resistant pipe with lining provided with the reinforcing structure and the isolation layer as claimed in claim 1, wherein: the grooves comprise annular grooves perpendicular to the axis of the pipe fitting and strip-shaped grooves parallel to the axis of the pipe fitting.

3. The corrosion-resistant pipe with lining provided with the reinforcing structure and the isolation layer as claimed in claim 2, wherein: the groove is a dovetail groove.

4. The corrosion-resistant pipe with lining provided with a reinforcing structure and an insulating layer as claimed in any one of claims 1 to 3, wherein: the pipe fitting body is made of metal materials and comprises a pipeline, a tower section, a tee joint, a four-way joint, an elbow, a reducer, a pipe cap, a pipe joint and a short section.

5. The corrosion-resistant pipe with lining provided with a reinforcing structure and an insulating layer as claimed in any one of claims 1 to 3, wherein: the anti-corrosion inner lining layer is made of fluoroplastic and comprises PFA, PTFE, PVDF, FEP, ECTFE and ETFE.

6. The corrosion-resistant pipe with lining provided with the reinforcing structure and the isolation layer as claimed in claim 1, wherein: the anti-corrosion inner liner is connected and fixed with the pipe fitting body and the groove thereof in an injection molding mode.