Wear-resistant anti-corrosion steel pipe

Abstract

The utility model discloses a wear-resistant and corrosion-resistant steel pipe, belongs to the technical field of steel pipes, and aims to solve the problems that the surface of the steel pipe is gradually rusted and corroded when the steel pipe is in corrosive environments such as humid air, acid rain and soil for a long time due to the absence of a wear-resistant and corrosion-resistant structure for the steel pipe in the prior art. And when the inside and the outside of the steel pipe are scratched by materials or other objects, scratches, pits and other undesirable phenomena are possibly formed, so that the smoothness and the integrity of the steel pipe are influenced, and when the follow-up friction resistance is further increased, the abrasion speed of the steel pipe is increased, so that a vicious circle is formed. Comprising an outer pipe, mounting mechanisms are mounted at the two ends of the outer pipe, a wear-resistant and corrosion-resistant mechanism is mounted inside and outside the outer pipe in a combined mode, the wear-resistant and corrosion-resistant mechanism comprises a pressure-resistant protection assembly, a rubber layer and a supporting pressure-resistant block, a middle-mounted partition pipe is arranged on the inner side of the rubber layer, and an inner pipe is arranged on the inner side of the supporting pressure-resistant block. The pressure-resistant protection assembly is installed on the inner side of the outer pipe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel pipe technical field, concretely relates to a wear -resisting anticorrosive steel pipe. BACKGROUND

[0002] Steel pipe is mainly used for conveying fluid and powder solid, exchanging heat energy, manufacturing mechanical parts and container, is an economic steel, is widely applied in chemical industry, pharmacy and construction industry.

[0003] Such as patent CN214274743U discloses a pressure -resistant steel pipe, including the inside to the outside sequentially arranged inner tube, rubber layer and outer tube, between the inner tube and rubber layer, between rubber layer and outer tube all is equipped with heat insulating layer.

[0004] The steel pipe in the above during use, since its wear -resisting anticorrosive structure for steel pipe is not there, so when steel pipe is in humid air, acid rain, soil and other corrosive environment for a long time, surface will gradually rust and corrosion, and when steel pipe inside and outside are scratched by material or other objects, then possibly form scratch pit and other undesirable phenomena, thereby affect the smoothness and integrity of steel pipe, when subsequent frictional resistance further increases, its wear rate accelerates, so as to form vicious cycle. UTILITY MODEL CONTENTS

[0005] (1) technical problem to be solved

[0006] In view of the deficiency of prior art, the utility model aims at providing a wear -resisting anticorrosive steel pipe, which aims at solving the problem that in prior art, since its wear -resisting anticorrosive structure for steel pipe is not there, so when steel pipe is in humid air, acid rain, soil and other corrosive environment for a long time, surface will gradually rust and corrosion, and when steel pipe inside and outside are scratched by material or other objects, then possibly form scratch pit and other undesirable phenomena, thereby affect the smoothness and integrity of steel pipe, when subsequent frictional resistance further increases, its wear rate accelerates, so as to form vicious cycle.

[0007] (2) technical scheme

[0008] In order to solve the above technical problem, the utility model provides a wear -resisting anticorrosive steel pipe, which comprises an outer tube, the both ends of the outer tube are provided with mounting mechanisms, and the inner and outer portions of the outer tube are jointly provided with wear -resisting anticorrosive mechanisms, the wear -resisting anticorrosive mechanisms comprise pressure -resistant protection assemblies, a rubber layer and a supporting pressure -resistant block in the middle, the inner side of the rubber layer is provided with a middle mounting pipe, the inner side of the supporting pressure -resistant block is provided with an inner tube, the pressure -resistant protection assemblies are installed on the inner side of the outer tube, and wear -resisting anticorrosive assemblies are installed on the outer side of the outer tube and the inner side of the inner tube.

[0009] Further, the pressure-resistant protection assembly comprises a rubber layer, and the rubber layer is arranged on the outer side of the middle partition pipe; the outer side of the rubber layer is wrapped with a rock wool heat insulation layer; and the inner side of the middle partition pipe is dividedly provided with a support pressure-resistant block.

[0010] Further, the support pressure-resistant block is arranged in the middle partition pipe and the inner pipe.

[0011] Further, the wear-resistant and corrosion-resistant assembly comprises a polytetrafluoroethylene corrosion-resistant layer, and the polytetrafluoroethylene corrosion-resistant layer is arranged on the outer side of the outer pipe and the inner side of the inner pipe respectively; and one side of the polytetrafluoroethylene corrosion-resistant layer is provided with a ceramic coating.

[0012] Further, the polytetrafluoroethylene corrosion-resistant layer and the ceramic coating are matched in size.

[0013] Further, the mounting mechanism comprises an inner thread, and the inner thread is arranged on the inner side of one end of the outer pipe; the end of the inner thread of the one end of the outer pipe is fixedly provided with an inner fixed block, and the inner side of the inner fixed block is attached with a first rubber ring; the other end of the outer pipe is fixedly provided with an outer thread, and the end of the outer thread is fixedly provided with a pressure block; and the outer side of the end of the outer thread is sleeved with a second rubber ring.

[0014] Further, the outer side of the outer thread and the inner thread are in threaded connection.

[0015] Further, the inner end of the pressure block and the inner side of the inner fixed block are matched in size.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] In the utility model, the rubber layer arranged on the outer side of the middle partition pipe and the inner side of the outer pipe is made of natural rubber, which can assist the steel pipe to improve the effect of external force impact; the rock wool heat insulation layer wrapped on the outer side of the rubber layer can reduce the influence of external temperature on the rubber, indirectly improve the service life of the steel pipe; the fixed support pressure-resistant blocks arranged on the inner side of the middle partition pipe and the inner pipe can improve the hardness and pressure resistance of the steel pipe as a whole, and deformation is avoided as much as possible; the polytetrafluoroethylene corrosion-resistant layer arranged on the outer side of the outer pipe and the inner side of the inner pipe can provide excellent acid resistance, alkali resistance and high corrosion resistance of various organic solvents to the pipe wall; the ceramic coating arranged on the side of the polytetrafluoroethylene corrosion-resistant layer can provide good wear resistance of the pipe wall, reduce the wear caused by various factors in operation, and the main components of the ceramic coating are inorganic compounds composed of silicon, oxygen and other elements; the molecular structure of such substances is compact and stable, and water molecules are difficult to penetrate, thereby improving the sealing property of the steel pipe.

[0019] The utility model discloses when personnel need to install and splice two steel pipes, personnel can utilize the thread structure between the outer thread of one steel pipe right side and the inner thread of another steel pipe left side to splice the two, and because the inner thread end is fixed with the inner fixed block in the steel pipe and its inner side is attached to the first rubber ring, when the outer thread and the inner thread are in the threaded state, the outer thread end pressing block can be pressed on the first rubber ring side to form sealing, then because the second rubber ring is sleeved on the outer thread end periphery, the second rubber ring can play the secondary sealing for the two in the two steel pipe splicing state, thereby improving the waterproof sealing property of the splicing part. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0022] Figure 2 It is Figure 1 It is a structure schematic view of A in the middle;

[0023] Figure 3 It is a sectional structure schematic view;

[0024] Figure 4 It is Figure 3 It is a structure schematic view of B in the middle.

[0025] The marks in the drawings are: 1, outer pipe; 2, installation mechanism; 21, inner thread; 22, inner fixed block; 23, first rubber ring; 24, outer thread; 25, pressing block; 26, second rubber ring; 3, wear-resistant and corrosion-resistant mechanism; 31, pressure-resistant protection assembly; 311, rubber layer; 312, rock wool heat insulation layer; 313, support pressure-resistant block; 32, wear-resistant and corrosion-resistant assembly; 321, polytetrafluoroethylene corrosion-resistant layer; 322, ceramic coating; 4, middle installation isolation pipe; 5, inner pipe. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] The embodiment is a wear-resistant and corrosion-resistant steel pipe, a structural schematic diagram of which is shown in the figure Figures 1 to 4 The wear-resistant and corrosion-resistant steel pipe comprises an outer pipe 1, a mounting mechanism 2 mounted at both ends of the outer pipe 1, and a wear-resistant and corrosion-resistant mechanism 3 mounted on the inner and outer portions of the outer pipe 1. The wear-resistant and corrosion-resistant mechanism 3 comprises a pressure-resistant protection assembly 31 and a rubber layer 311 and a support pressure-resistant block 313 in the pressure-resistant protection assembly 31. A middle mounting pipe 4 is arranged on the inner side of the rubber layer 311, and an inner pipe 5 is arranged on the inner side of the support pressure-resistant block 313. The mounting mechanism 2 comprises an inner thread 21 arranged on the inner side of one end of the outer pipe 1. An inner fixed block 22 is fixedly arranged at the end of the inner thread 21 of the outer pipe 1. A first rubber ring 23 is arranged on the inner side of the inner fixed block 22. An outer thread 24 is fixedly arranged on the other end of the outer pipe 1. The outer thread 24 is threadedly connected with the inner thread 21. A pressure block 25 is fixedly arranged at the end of the outer thread 24. A second rubber ring 26 is arranged on the outer side of the end of the outer thread 24. The inner end size of the pressure block 25 is matched with the inner side size of the inner fixed block 22. When two steel pipes need to be mounted and spliced, the two steel pipes can be spliced by the thread structure between the outer thread 24 arranged on the right side of one steel pipe and the inner thread 21 arranged on the left side of the other steel pipe. Since the end of the inner thread 21 is fixedly arranged on the inner side of the steel pipe and the inner side of the inner thread 21 is matched with the first rubber ring 23, the end of the outer thread 24 can press the first rubber ring 23 to form a seal when the outer thread 24 is threadedly connected with the inner thread 21. Since the second rubber ring 26 is arranged on the periphery of the end of the outer thread 24, the second rubber ring 26 can seal the two steel pipes when the two steel pipes are spliced, thereby improving the waterproof sealing performance of the spliced portion.

[0028] The pressure-resistant protection assembly 31 is installed on the inner side of the outer pipe 1, and the pressure-resistant protection assembly 31 comprises a rubber layer 311, and the rubber layer 311 is installed on the outer side of the middle partition pipe 4, the outer side of the rubber layer 311 is wrapped with a rock wool heat insulation layer 312, the inner side of the middle partition pipe 4 is divided into a supporting pressure block 313, the supporting pressure block 313 is divided into the inside of the middle partition pipe 4 and the inner pipe 5, the outer side of the outer pipe 1 and the inner side of the inner pipe 5 are installed with a wear-resistant corrosion-resistant assembly 32, the wear-resistant corrosion-resistant assembly 32 comprises a polytetrafluoroethylene corrosion-resistant layer 321, and the polytetrafluoroethylene corrosion-resistant layer 321 is coated on the outer side of the outer pipe 1 and the inner side of the inner pipe 5 respectively, one side of the two polytetrafluoroethylene corrosion-resistant layers 321 is provided with a ceramic coating layer 322, the polytetrafluoroethylene corrosion-resistant layer 321 and the ceramic coating layer 322 are matched in size, the rubber layer 311 provided on the outer side of the middle partition pipe 4 and the inner side of the outer pipe 1 adopts natural rubber, which can assist the steel pipe to improve the effect of external force impact, the rock wool heat insulation layer 312 wrapped on the outer side of the rubber layer 311 can reduce the influence of external temperature on the rubber, indirectly improve the service life of the steel pipe, then the supporting pressure block 313 provided on the inner side of the middle partition pipe 4 and the inner pipe 5 can improve the hardness and pressure resistance of the whole steel pipe, and deformation is avoided as much as possible, furthermore, the polytetrafluoroethylene corrosion-resistant layer 321 provided on the outer side of the outer pipe 1 and the inner side of the inner pipe 5 can provide excellent acid resistance, alkali resistance and high corrosion resistance of various organic solvents to the above-mentioned adhered pipe wall, and the ceramic coating layer 322 provided on the side of the polytetrafluoroethylene corrosion-resistant layer 321 can provide better wear resistance of the pipe wall, reduce the wear caused by various factors in operation, and because the main components of the ceramic coating layer 322 are inorganic compounds composed of silicon, oxygen and other elements, the molecular structure of such substances is tight and stable, water molecules are difficult to penetrate, thereby improving the sealing property of the steel pipe.

[0029] Working principle: when personnel need to install and splice two steel pipes, personnel can splice the two by using the thread structure between the outer thread 24 on the right side of one steel pipe and the inner thread 21 on the left side of the other steel pipe in advance, wherein since the inner thread 21 end is fixedly arranged with the inner fixed block 22 inside the steel pipe and its inner side is attached to the first rubber ring 23, when the outer thread 24 is in a threaded state with the inner thread 21, the outer thread 24 end pressing block 25 can be pressed on the side of the first rubber ring 23 to form a seal, then since the second rubber ring 26 is sleeved around the outer thread 24 end, the second rubber ring 26 can provide secondary sealing for the two steel pipes in the spliced state, thereby improving the waterproof sealing performance of the spliced part, and the rubber layer 311 arranged on the outer side of the middle installation partition pipe 4 and the inner side of the outer pipe 1 is made of natural rubber, which can assist the steel pipe to improve the effect of external force impact, wherein the rock wool heat insulation layer 312 wrapped outside the rubber layer 311 can reduce the possible influence of external temperature on the rubber, thereby indirectly improving the service life of the steel pipe, then the fixed support pressure-resistant block 313 arranged on the inner side of the middle installation partition pipe 4 and the inner pipe 5 can improve the hardness and pressure resistance of the steel pipe as a whole, and deformation is avoided as much as possible, furthermore, the polytetrafluoroethylene corrosion-resistant layer 321 arranged on the outer side of the outer pipe 1 and the inner side of the inner pipe 5 can provide excellent high corrosion resistance of acid, alkali and various organic solvents for the above-mentioned pipe wall, and the ceramic coating 322 arranged on the side of the polytetrafluoroethylene corrosion-resistant layer 321 can provide better wear resistance of the pipe wall, reduce the wear caused by various factors in operation, and since the main component of the ceramic coating 322 is an inorganic compound composed of elements such as silicon and oxygen, the molecular structure of such substances is tight and stable, and water molecules are difficult to penetrate, thereby improving the sealing performance of the steel pipe.

[0030] All the technical features in the embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A wear and corrosion resistant steel pipe comprising an outer pipe (1), characterized in that, The outer tube (1) is provided with mounting mechanism (2) at both ends, and the inner and outer parts of outer tube (1) are jointly provided with wear-resistant anticorrosion mechanism (3), which comprises pressure-resistant protection assembly (31) and its component rubber layer (311) and support pressure block (313), and the inner side of rubber layer (311) is provided with middle loading pipe (4), the inner side of support pressure block (313) is provided with inner tube (5), the pressure-resistant protection assembly (31) is installed on the inner side of outer tube (1), and the outer side of outer tube (1) and the inner side of inner tube (5) are provided with wear-resistant anticorrosion assembly (32).

2. A corrosion and abrasion resistant steel pipe according to claim 1, characterized in that, The pressure-resistant protection assembly (31) comprises rubber layer (311), and the rubber layer (311) is installed on the outer side of middle loading pipe (4), the outer side of rubber layer (311) is wrapped with rock wool heat insulation layer (312), and the inner side of middle loading pipe (4) is divided into support pressure block (313).

3. A corrosion and abrasion resistant steel pipe according to claim 2, characterized in that, The support pressure block (313) is divided into the inner part of middle loading pipe (4) and inner tube (5).

4. The abrasion and corrosion resistant steel pipe according to claim 1, wherein The wear-resistant anticorrosion assembly (32) comprises polytetrafluoroethylene anticorrosion layer (321), and the polytetrafluoroethylene anticorrosion layer (321) is coated on the outer side of outer tube (1) and the inner side of inner tube (5) respectively, and one side of the two polytetrafluoroethylene anticorrosion layers (321) is provided with ceramic coating (322).

5. A corrosion and abrasion resistant steel pipe according to claim 4, characterized in that The size of polytetrafluoroethylene anticorrosion layer (321) and ceramic coating (322) is matched.

6. A corrosion and abrasion resistant steel pipe according to claim 1, characterized in that, The mounting mechanism (2) comprises inner thread (21), and the inner thread (21) is opened on the inner side of one end of outer tube (1), the end of inner thread (21) of one end of outer tube (1) is fixedly provided with inner fixed block (22), the inner side of inner fixed block (22) is attached with first rubber ring (23), the other end of outer tube (1) is fixedly provided with outer thread (24), the end of outer thread (24) is fixedly provided with pressure block (25), the end of outer thread (24) is externally provided with second rubber ring (26).

7. A corrosion and abrasion resistant steel pipe according to claim 6, characterized in that The outer side of outer thread (24) and the inner thread (21) are screw-connected.

8. A corrosion and abrasion resistant steel pipe according to claim 6, characterized in that, The size of the inner end of pressure block (25) is matched with the size of the inner side of inner fixed block (22).

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