CN113819315A

CN113819315A - Composite pipe for preventing atmospheric environment corrosion

Info

Publication number: CN113819315A
Application number: CN202111085174.9A
Authority: CN
Inventors: 黄双龙; 其他发明人请求不公开姓名
Original assignee: Nanjing Zhuoxinlian Industrial Equipment Technology Co ltd
Current assignee: Nanjing Zhuoxinlian Industrial Equipment Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2021-12-21

Abstract

The invention discloses a composite pipe for preventing atmospheric environment corrosion, which belongs to the technical field of pipeline workpieces and comprises an inner liner pipe, wherein the left end and the right end of the inner liner pipe are lapped with the opposite surfaces of two mounting rings, the inner wall of each mounting ring is provided with a clamping groove, the surface of the inner liner pipe is lapped with the inner wall of each clamping groove, and the surface of the inner liner pipe is sleeved with a heat-insulating layer. This prevent compound pipe of atmospheric environment corruption, through setting up interior bile duct, screw and flange dish, fixed simultaneously to inside heat preservation and the interior bile duct pipe closely in step of two collar attachments, aim at one side collar that corresponds of two this compound pipes each other immediately, pass the mounting hole of seting up between two collars through the screw immediately and keep fixing it can, this kind of mode is when guaranteeing good installation compactness and protectiveness, the structure of its equipment and installation is simpler can play good protecting effect to inside bile duct pipe, make its corrosion-resistant effect can maximize the performance.

Description

Composite pipe for preventing atmospheric environment corrosion

Technical Field

The invention belongs to the technical field of pipeline workpieces, and particularly relates to a composite pipe for preventing atmospheric environment corrosion.

Background

A steel-plastic composite pipe, called steel-plastic pipe for short, is a composite pipe material, is an upgraded product of the traditional galvanized pipe, takes a seamless steel pipe and a welded steel pipe as base pipes, is coated with polyethylene powder coating or epoxy resin coating with high adhesive force, corrosion resistance and food-grade sanitation on the inner wall, is manufactured by adopting the processes of pretreatment, preheating, internal coating, leveling and post-treatment, is generally connected by screw threads, has a plurality of categories, and can be classified according to the structure of the pipe material: steel-band reinforced steel-plastic composite pipe, seamless steel-tube reinforced steel-plastic composite pipe, mesh steel-band steel-plastic composite pipe and steel-wire mesh skeleton steel-plastic composite pipe. At present, the most popular steel-plastic composite pipe in the market is a steel-plastic composite pipe, namely a steel-plastic composite pressure pipe which is often called, the middle layer of the pipe is a steel belt layer formed by welding a high-carbon steel belt in a butt joint mode through curling, and the inner layer and the outer layer are both made of high-density polyethylene. The middle layer of the pipe is a steel belt, so the pressure-bearing performance of the pipe is very good, different from the situation that the pressure-bearing capacity of an aluminum belt is not high, the maximum caliber of the pipe can only be 63mm, and the maximum caliber of a steel-plastic pipe can be 200mm or even larger; because the steel band in the middle layer of the pipe is closed, the steel-plastic pipe has the function of oxygen resistance at the same time, can be directly used for direct drinking water engineering, and has very good corrosion resistance because the inner layer and the outer layer are made of plastic materials. The excellent performance makes the steel-plastic composite pipe have wide application, the figure of the pipe can be seen in various fields such as petroleum and natural gas transportation, industrial and mining pipes, drinking water pipes, water drainage pipes and the like, and the production process of the steel-band reinforced steel-plastic composite pipe is complex. The steel strip has little flexibility unlike the aluminum strip, and therefore, the forming process of the steel strip is very demanding. Secondly, the steel band is also usually thicker than the aluminium band, can not adopt the overlap joint welding technology welding, can only adopt the butt welding technology that the required precision is high, wherein present composite pipe its inside and outside all need possess good corrosion-resistant effect when using, however in present composite pipe, adopt plastics material and plastic steel cooperation mostly, however the plastics that use in this type of structure still do not have ceramic effectual to inside corrosion-resistant effect, present pottery because its intensity is relatively poor and be difficult to reach effectual outside protection between the metal external member, so lead to its application to have certain hidden danger.

Disclosure of Invention

Technical problem to be solved

In order to overcome the defects in the prior art, the invention provides a composite pipe for preventing atmospheric environment corrosion, which solves the problems that most of the existing composite pipes are made of plastic materials and matched with plastic steel, however, the corrosion resistance effect of the plastic used in the structure to the inside is still not good as that of ceramics, and the existing ceramics have certain hidden danger due to the fact that the strength of the existing ceramics is poor and effective external protection is difficult to achieve between metal sleeves.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the composite pipe for preventing atmospheric environment corrosion comprises an inner liner pipe, the left end and the right end of the inner liner pipe are lapped with the opposite surfaces of two mounting rings, the inner wall of the mounting ring is provided with a clamping groove, the surface of the inner liner tube is lapped with the inner wall of the clamping groove, the surface of the inner liner pipe is sleeved with a heat-insulating layer, the surface of the heat-insulating layer is sleeved with a protective sleeve, the left side surface and the right side surface of the heat preservation layer are lapped with the opposite surfaces of the two mounting rings, the left end and the right end of the protective sleeve are lapped with the opposite surfaces of the two mounting rings, the surface of the mounting ring is provided with an arc-shaped groove, the surface of the protective sleeve is provided with a plurality of deformation grooves, the deformation grooves are arranged corresponding to the surfaces of the same arc-shaped groove, the surface of the mounting ring is provided with a flange groove, the inner wall of the flange groove is provided with a flange plate, the inner wall of the mounting hole is connected with a screw in a sliding mode, and the protective sleeve is located on the surface of the inner liner pipe.

As a further scheme of the invention: the protective sleeve comprises a substrate, wherein an anti-corrosion layer is arranged on the upper surface of the substrate, a polishing layer is arranged on the lower surface of the substrate, and an anti-wear layer is arranged on the surface of the anti-corrosion layer.

As a further scheme of the invention: the base body is specifically made of tough steel, the polishing layer is specifically made of chromium plating, the corrosion-resistant layer is specifically made of aluminum alloy, and the wear-resistant layer is specifically made of hard steel.

As a further scheme of the invention: the heat preservation layer is made of glass fiber tubes, the inner liner tube is made of ceramic, and the left end and the right end of the inner liner tube are embedded with the clamping grooves in shape.

As a further scheme of the invention: the mounting ring is made of steel materials, the wear-resistant layer is formed by a plurality of stamping fillets which are crossed transversely and vertically, and the deformation groove is located between the corresponding plurality of fillets.

(III) advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

1. the composite pipe for preventing atmospheric environment corrosion is characterized in that when the single composite pipe is assembled, the mounting ring on one side and one end of the corresponding inner container pipe are correspondingly limited through a clamping groove, the heat-insulating layer is sleeved on the surface of the inner container pipe, the protective sleeve is sleeved on the surface of the corresponding mounting ring, the mounting ring on the other side is synchronously clamped, the mounting ring on the two sides of the protective sleeve is knocked by a blunt-headed awl, the inner wall of the deformation groove is kept bent in the knocking process, the bottom surface of the synchronous deformation groove protrudes into the arc-shaped groove when being bent, the mounting rings on the two sides of the protective sleeve are fixed under the matching of a plurality of deformation grooves, and the inner heat-insulating layer and the inner container pipe are synchronously and tightly fixed when the two mounting rings are fixed, the mounting rings on the corresponding sides of the two composite pipes are aligned with each other, the flange plates are clamped into the corresponding flange grooves, and the flange plates penetrate through the mounting holes formed between the two mounting rings through screws and are fixed.

2. The composite pipe for preventing the atmospheric environment from being corroded is provided with the corrosion-resistant layer, the polishing layer, the wear-resistant layer, the matrix, the heat-insulating layer and the inner container pipe, and when in use, along with the support of the matrix on the corrosion-resistant layer and the wear-resistant layer, when the anti-corrosion layer is impacted with the external object during the laying, the anti-corrosion layer can be directly contacted with the external object, the protection of the anti-corrosion layer is kept, and simultaneously, when the external environment affects the anti-corrosion layer, under the action of a long time, the corrosion-resistant layer protects the inner container, a gap is formed between the protective sleeve and the inner container pipe under the action of the external temperature difference of the synchronous matched thermal insulation layer, the thermal insulation is kept, and the glass fiber material is matched in the using process to keep further corrosion resistance and protection, and the polishing layer is matched to keep a stable attaching state with the heat-insulating layer, so that the glass fiber material can play a good protection effect on the inside.

3. This prevent compound pipe of atmospheric environment corruption, through setting up the flange groove, ring flange and collar, when using, carry out the in-process of installing at two these bodys, through going into two flange inslots portions that correspond with the ring flange card, synchronous installs and fixed in-process between two collars, its ring flange can keep its connected state's stability, possesses good anti skew and the effect of improving connection leakproofness, make its connection process more stable, possess the effect of certain supplementary installation.

Drawings

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

FIG. 2 is a schematic sectional view of the inner bile duct in the present invention;

FIG. 3 is a front view of a cross-sectional structure of the screw of the present invention;

FIG. 4 is a perspective view of the mounting ring of the present invention;

FIG. 5 is a schematic cross-sectional view of a protective sleeve according to the present invention;

in the figure: the heat-insulation and heat-preservation combined type liner comprises an inner liner tube 1, a mounting ring 2, a protective sleeve 3, a substrate 31, a corrosion-resistant layer 32, a polishing layer 33, a wear-resistant layer 34, a heat-insulation layer 4, a mounting hole 5, a flange groove 6, a flange plate 7, an arc-shaped groove 8, a deformation groove 9, a screw 10 and a clamping groove 11.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 5, the present invention provides a technical solution: a composite pipe for preventing atmospheric environment corrosion comprises an inner liner pipe 1, the left and right ends of the inner liner pipe 1 are lapped with the opposite surfaces of two mounting rings 2, the inner wall of each mounting ring 2 is provided with a clamping groove 11, the surface of the inner liner pipe 1 is lapped with the inner wall of the clamping groove 11, the surface of the inner liner pipe 1 is sleeved with a heat insulation layer 4, the surface of the heat insulation layer 4 is sleeved with a protective sleeve 3, the left and right side surfaces of the heat insulation layer 4 are lapped with the opposite surfaces of the two mounting rings 2, the left and right ends of the protective sleeve 3 are lapped with the opposite surfaces of the two mounting rings 2, the surface of each mounting ring 2 is provided with an arc-shaped groove 8, the surface of each protective sleeve 3 is provided with a plurality of deformation grooves 9, the corresponding deformation grooves 9 are all arranged on the surface of the same arc-shaped groove 8, the surface of each mounting ring 2 is provided with a flange 6, the inner wall of each flange 7 is arranged on the inner wall of each mounting hole 5, and a screw 10 is connected in a sliding manner, the protective sleeve 3 is positioned on the surface of the inner bile duct 1.

Specifically, as shown in fig. 1 and fig. 2, heat preservation 4 specifically is glass fiber tube material, interior bile duct 1 specifically is ceramic material, interior bile duct 1 about both ends shape and draw-in groove 11 shape looks gomphosis, collar 2 adopts steel material, wearing layer 34 specifically is that the stupefied strip of punching press of a plurality of crossing is constituteed anyhow and deformation groove 9 is located corresponding between a plurality of stupefied strip, through setting up heat preservation 4, heat preservation 4 specifically adopts glass fiber tube material, make it can keep good protection and separate the warm effect, through setting up interior bile duct 1, interior bile duct 1 can keep good corrosion-resistant and protective effect, the material of circulation can keep good stable flow effect to the while, through setting up deformation groove 9, deformation groove 9 can keep good fixed effect under the deformation effect of bottom surface when receiving the strike.

Specifically, as shown in fig. 3 and 4, the protective sleeve 3 includes a base 31, the upper surface of the base 31 is provided with a corrosion-resistant layer 32, the lower surface of the base 31 is provided with a polishing layer 33, the surface of the corrosion-resistant layer 32 is provided with an abrasion-resistant layer 34, the base 31 is specifically made of tough steel, the polishing layer 33 is specifically made of chromium-plated material, the corrosion-resistant layer 32 is specifically made of aluminum alloy, the abrasion-resistant layer 34 is specifically made of hard steel, through setting the corrosion-resistant layer 32, the corrosion-resistant layer 32 can perform good protection effect on the outside, reduce the influence of the external environment on the inside, through setting the base 31, the base 31 is made of tough steel, and the base can have certain toughness and protection strength in the use process.

The working principle of the invention is as follows:

s1, when assembling a single composite pipe, firstly, correspondingly limiting the mounting ring 2 on one side and one end of the corresponding inner liner pipe 1 through the clamping groove 11, immediately sleeving the heat-insulating layer 4 on the surface of the inner liner pipe 1, finally, keeping the protective sleeve 3 sleeved on the surface of the corresponding mounting ring 2, synchronously clamping the mounting ring 2 on the other side, and immediately knocking the mounting ring 2 at the position of the deformation groove 9 through the blunt awl;

s2, the inner wall of the deformation groove 9 is kept to be bent in the knocking process, the bottom surface of the synchronous deformation groove 9 protrudes into the arc-shaped groove 8 when being bent, then the plurality of deformation grooves 9 are matched, the mounting rings 2 on two sides of the protective sleeve 3 are fixed, the internal heat insulation layer 4 and the inner liner tube 1 are synchronously and tightly fixed while the two mounting rings 2 are fixed, then the mounting rings 2 on one corresponding sides of the two composite tubes are aligned with each other, the flange plates 7 are kept to be clamped into the corresponding flange grooves 6, and then the flange plates penetrate through the mounting holes 5 formed between the two mounting rings 2 through screws 10 and are kept to be fixed;

s3, along with the support of the substrate 31 to the corrosion-resistant layer 32 and the wear-resistant layer 34, when the wear-resistant layer 34 is laid, the wear-resistant layer 34 can be in direct contact with an external object when the wear-resistant layer collides with the external object, the corrosion-resistant layer 32 can be protected, meanwhile, when the external environment affects the wear-resistant layer, the corrosion-resistant layer 32 can protect the wear-resistant layer under the action of a long time, and under the action of the temperature difference of the synchronous matched heat-insulating layer 4 to the outside, a gap is formed between the protective sleeve 3 and the inner bile duct 1, so that the heat insulation is kept.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a prevent compound pipe of atmospheric environment corruption, includes interior bile duct (1), its characterized in that: the left end and the right end of the inner liner tube (1) are in lap joint with opposite faces of the two mounting rings (2), a clamping groove (11) is formed in the inner wall of each mounting ring (2), the surface of each inner liner tube (1) is in lap joint with the inner wall of each clamping groove (11), a heat-insulating layer (4) is sleeved on the surface of each inner liner tube (1), a protective sleeve (3) is sleeved on the surface of each heat-insulating layer (4), the left side face and the right side face of each heat-insulating layer (4) are in lap joint with opposite faces of the two mounting rings (2), the left end and the right end of each protective sleeve (3) are in lap joint with opposite faces of the two mounting rings (2), an arc-shaped groove (8) is formed in the surface of each mounting ring (2), a plurality of deformation grooves (9) are formed in the surface of each protective sleeve (3), the corresponding deformation grooves (9) are arranged on the surface of the same arc-shaped groove (8), and flange grooves (6) are formed in the surface of each mounting ring (2), the inner wall of the flange groove (6) is provided with a flange plate (7), the inner wall of the mounting hole (5) is connected with a screw (10) in a sliding mode, and the protective sleeve (3) is located on the surface of the inner bile duct (1).

2. The composite tube of claim 1, wherein the composite tube is resistant to corrosion from the atmospheric environment, and wherein: the protective sleeve (3) comprises a substrate (31), wherein a corrosion-resistant layer (32) is arranged on the upper surface of the substrate (31), a polishing layer (33) is arranged on the lower surface of the substrate (31), and a wear-resistant layer (34) is arranged on the surface of the corrosion-resistant layer (32).

3. The composite tube of claim 2, wherein the composite tube is resistant to corrosion from the atmospheric environment, and wherein: the base body (31) is specifically made of tough steel, the polishing layer (33) is specifically made of chromium plating, the corrosion-resistant layer (32) is specifically made of aluminum alloy, and the wear-resistant layer (34) is specifically made of hard steel.

4. The composite tube of claim 1, wherein the composite tube is resistant to corrosion from the atmospheric environment, and wherein: the heat preservation layer (4) is made of glass fiber tubes, the inner liner tube (1) is made of ceramic materials, and the left end and the right end of the inner liner tube (1) are embedded with the clamping grooves (11) in shape.

5. The composite tube of claim 3, wherein the composite tube is resistant to corrosion from the atmospheric environment, and wherein: the mounting ring (2) is made of steel materials, the wear-resistant layer (34) is formed by a plurality of stamping fillets which are crossed transversely and vertically, and the deformation groove (9) is located between the corresponding plurality of fillets.