CN219013623U

CN219013623U - Sulfuric acid dew point corrosion resistant ceramic steel composite pipe

Info

Publication number: CN219013623U
Application number: CN202223235102.0U
Authority: CN
Inventors: 王军; 茆训忠
Original assignee: Jiangsu Jinya Power Equipment Co ltd
Current assignee: Liaocheng Runze Seamless Steel Pipe Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-05-12
Anticipated expiration: 2032-12-05

Abstract

The utility model relates to the technical field of ceramic composite pipes, in particular to a sulfuric acid dew point corrosion resistant ceramic steel composite pipe, which comprises two steel outer layers, wherein a connecting layer A is fixed on the inner side of each steel outer layer, a ceramic inner layer A is fixed on the inner side of each connecting layer A, a connecting ring A is fixed on the right side of each steel outer layer, a connecting ring B is fixed on the left side of each connecting ring A, a fixing ring A is fixed on the outer side of each connecting ring B, a fixing ring B is fixed on the outer side of each connecting ring B, guide rings are fixed on the left side and the right side of each ceramic inner layer A, the guide rings are fixedly connected with the connecting layer A, and a connecting structure is arranged between the two steel outer layers. The steel shell, the connecting layer B and the ceramic inner layer B form a plurality of connecting pieces, the connecting pieces are installed between the pipelines through the guide blocks, so that the connecting joints between the pipelines are changed from original straight joints into connecting joints with corners, and the connecting joints are integrally in cross contact, so that the connecting parts are not easy to corrode and leak, and the service life and the safety of the pipelines are improved.

Description

Sulfuric acid dew point corrosion resistant ceramic steel composite pipe

Technical Field

The utility model relates to the technical field of ceramic composite pipes, in particular to a sulfuric acid dew point corrosion resistant ceramic steel composite pipe.

Background

The ceramic composite pipe is a ceramic lining composite steel pipe, and is manufactured by adopting a high-technology production process, namely an auto-ignition high-temperature clutch synthesis method; the pipe is composed of three layers of corundum ceramic, a connecting layer and steel from inside to outside, wherein the ceramic layer is compact corundum ceramic (AL 2O 3) formed at a high temperature of more than 2200 ℃, and firm combination is formed between the ceramic layer and the steel pipe through the connecting layer; the composite pipe fully exerts the characteristics of high steel pipe strength, good toughness, good impact resistance and welding performance, high corundum-porcelain hardness, high wear resistance, corrosion resistance and good heat resistance, and overcomes the defects of low steel pipe hardness, poor wear resistance and poor ceramic toughness; therefore, the composite pipe has good comprehensive properties of wear resistance, heat resistance, corrosion resistance, mechanical shock resistance, thermal shock resistance, good weldability and the like; is an ideal wear-resistant and corrosion-resistant pipeline for conveying granular materials, grinding, corrosive media and the like.

The pipe has wear resistance, corrosion resistance and heat resistance, so that the pipe can be widely applied to industries such as electric power, metallurgy, mine, coal, chemical industry and the like, is used for conveying abrasive particle materials such as sand, stone, coal dust, ash slag, aluminum liquid and the like and corrosive mediums, and is an ideal abrasion-resistant pipeline.

The sulfuric acid has stronger corrosiveness, so the sulfuric acid is transmitted by using the ceramic composite pipe, and the ceramic composite pipe cannot be directly connected section by section due to the problems of length and the like, so a transmission channel is formed, but the channel connection is usually in direct contact closure, so that the connection is in a straight line, corrosion leakage is easily caused, and the safety risk exists. Therefore, we propose a sulfuric acid dew point corrosion resistant ceramic steel composite pipe for solving the above problems.

Disclosure of Invention

The utility model aims to solve the defects that sulfuric acid has stronger corrosiveness, the ceramic composite pipe is used for transmission, the ceramic composite pipe cannot be directly connected section by section due to the length and other problems in the prior art, a transmission channel is formed after the ceramic composite pipe is connected section by section, but the channel connection is normally closed by direct contact, so that the connection is straight, corrosion leakage is easy to occur at the connection, and safety risks exist, and the sulfuric acid dew point corrosion-resistant ceramic steel composite pipe is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a resistant sulphuric acid dew point corrosion ceramics steel composite pipe, includes two steel outer layers, the outer inboard of steel is fixed with tie layer A, tie layer A inboard is fixed with ceramic inlayer A, steel outer right side is fixed with go-between A, left side is fixed with go-between B, go-between A outside is fixed with solid fixed ring A, go-between B outside is fixed with solid fixed ring B, go-between A, go-between B inboard keep away from steel skin one end all is equipped with a plurality of guide way, ceramic inlayer A left and right sides all is fixed with the guide ring, fixed link to each other between guide ring and the tie layer A, two be equipped with connection structure between the steel outer layer.

Preferably, one side of the fixing ring A, which is far away from the steel outer layer, is provided with a plurality of positioning grooves, one side of the fixing ring B, which is far away from the steel outer layer, is fixedly provided with a plurality of positioning blocks, the positioning blocks can slide on the inner sides of the positioning grooves, and the inner sides of the guide rings are provided with chamfers.

Preferably, a plurality of through holes are formed in one side of the fixing ring A and one side of the fixing ring B, and the number of the through holes, the number of the positioning grooves and the number of the positioning blocks are the same.

Preferably, one side of the fixing ring A far away from the steel outer layer is provided with a mounting groove A, and the inner side of the mounting groove A is fixedly provided with a PTFE sealing ring A.

Preferably, the connection structure comprises a steel shell, the steel shell can slide on the inner sides of a connecting ring A and a connecting ring B, a connecting layer B is fixed on the inner side of the steel shell, a ceramic inner layer B is fixed on the inner side of the connecting layer B, a guide block is fixed on the outer side of the steel shell, the guide block can slide on the inner side of a guide groove, and limiting rings are fixed at the left end and the right end of the ceramic inner layer B and can slide on the inner side of the guide ring.

Preferably, both ends all are equipped with mounting groove B about the steel shell outside, the spacing ring outside is equipped with mounting groove C, mounting groove B inboard is fixed with PTFE sealing washer B, mounting groove C inboard is fixed with PTFE sealing washer C.

Preferably, the outer side of the limiting ring is far away from one end of the ceramic inner layer B, and the left end and the right end of the outer side of the steel shell are respectively provided with a chamfer.

The sulfuric acid dew point corrosion resistant ceramic steel composite pipe provided by the utility model has the beneficial effects that:

1. through setting up go-between A, go-between B, steel shell, tie-up B, ceramic inlayer B, spacing ring, increase connection structure in the pipeline junction for the connection of pipeline changes into cross contact from original direct contact, makes the gap of junction become the connection seam that has the turning from original straight seam, makes the junction be difficult to corrode more and leaks, has improved the life and the security of pipeline.

2. By arranging the PTFE sealing ring A, PTFE and the B, PTFE sealing ring C, the sealing performance of the pipeline connection part is improved, and the leakage probability is reduced.

Drawings

FIG. 1 is a schematic diagram of a front perspective structure of a sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to the present utility model;

fig. 2 is a schematic view of a partial enlarged perspective structure of a region a in fig. 1 according to the present utility model;

FIG. 3 is a schematic view of a front cut-away perspective structure of a sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to the present utility model;

FIG. 4 is a schematic view of a partially enlarged perspective structure of the area B in FIG. 3 according to the present utility model;

FIG. 5 is a schematic view of a partially enlarged perspective structure of the region C in FIG. 3 according to the present utility model;

fig. 6 is a partially enlarged perspective view of the area D in fig. 5 according to the present utility model.

In the figure: the steel-made outer layer, the 2 connecting layer A, the 3 ceramic inner layer A, the 4 connecting ring A, the 5 connecting ring B, the 6 fixing ring A, the 7 fixing ring B, the 8 guiding ring, the 9 positioning block, the 10PTFE sealing ring A, the 11 steel shell, the 12 connecting layer B, the 13 ceramic inner layer B, the 14 guiding block, the 15 limiting ring, the 16PTFE sealing ring B and the 17PTFE sealing ring C.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-6, a sulfuric acid dew point corrosion resistant ceramic steel composite pipe comprises two steel outer layers 1, wherein a connecting layer A2 is fixed on the inner sides of the steel outer layers 1, a ceramic inner layer A3 is fixed on the inner sides of the connecting layer A2, a connecting ring A4 is fixed on the right side of the steel outer layers 1, a connecting ring B5 is fixed on the left side of the steel outer layers, a fixing ring A6 is fixed on the outer sides of the connecting ring A4, a fixing ring B7 is fixed on the outer sides of the connecting ring B5, a plurality of guide grooves are formed in one ends, far away from the steel outer layers 1, of the inner sides of the connecting ring A4 and the connecting ring B5, guide rings 8 are fixed on the left side and the right side of the ceramic inner layers A3, and the guide rings 8 are fixedly connected with the connecting layer A2.

The fixed ring A6 is kept away from steel skin 1 one side and is equipped with a plurality of constant head tank, fixed ring B7 is kept away from steel skin 1 one side and is fixed with a plurality of locating piece 9, locating piece 9 slidable is inboard at the constant head tank, fixed ring A6, fixed ring B7 one side is equipped with a plurality of through-hole, constant head tank and locating piece 9 quantity are the same, fixed ring A6 is kept away from steel skin 1 one side and is equipped with mounting groove A, the mounting groove A inboard is fixed with PTFE sealing washer A10, the guide ring 8 inboard is equipped with the chamfer, fixed ring A6, connect through the bolt double-screw bolt between the fixed ring B7, when connecting, use locating piece 9 can let fixed ring A6, fixed ring B7 laminating more closely and accurately for the pipe connection is more convenient, through-hole, constant head tank and locating piece 9 quantity are the same and all are evenly distributed simultaneously, need not to align repeatedly when connecting like this, the installation rate of pipeline has been improved, PTFE sealing washer A10 can improve the leakproofness.

Be equipped with connection structure between two steel skin 1, connection structure includes steel shell 11, steel shell 11 slidable is inboard at go-between A4, go-between B5, steel shell 11 inboard is fixed with go-between B12, go-between B12 inboard is fixed with ceramic inlayer B13, steel shell 11 outside is fixed with guide block 14, guide block 14 can slide inboard at the guide slot, both ends all are fixed with spacing ring 15 about ceramic inlayer B13, spacing ring 15 slidable is inboard at guide ring 8, steel shell 11, go-between B12 and ceramic inlayer B13 constitute a connecting piece, install the connecting piece between the pipeline through guide block 14, make the connecting joint between the pipeline become the connecting joint that has the turning from original straight joint, wholly become cross contact, make the junction be difficult to corrode more and leak, the life and the security of pipeline have been improved.

Both ends all are equipped with mounting groove B about the steel shell 11 outside, and the spacing ring 15 outside is equipped with mounting groove C, and mounting groove B inboard is fixed with PTFE sealing washer B16, and mounting groove C inboard is fixed with PTFE sealing washer C17, and ceramic inlayer B13 one end is kept away from in the spacing ring 15 outside, both ends all are equipped with the chamfer about the steel shell 11 outside, and PTFE sealing washer B16 and PTFE sealing washer C17 have improved the leakproofness between pipeline and the connecting piece, have reduced the probability of leakage.

The ceramic inner layer A3, the guide ring 8, the ceramic inner layer B13 and the limiting ring 15 are all made of corundum ceramics, which is the prior art in reality, and therefore, the description is omitted.

PTFE seal ring A10, PTFE seal ring B16 and PTFE seal ring C17 are seal rings, the material is PTFE, PTFE is polytetrafluoroethylene, commonly called "plastic king", is an artificial synthetic polymer material which uses fluorine to replace all hydrogen atoms in polyethylene, is generally called "non-stick coating" or "easy cleaning material", and has the characteristics of acid resistance, alkali resistance, various organic solvents resistance, almost insolubility in all solvents and high temperature resistance.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a resistant sulphuric acid dew point corrosion ceramics steel composite pipe, includes two steel extexines (1), its characterized in that, steel extexine (1) inboard is fixed with tie layer A (2), tie layer A (2) inboard is fixed with ceramic inlayer A (3), steel extexine (1) right side is fixed with tie ring A (4), left side is fixed with tie ring B (5), tie ring A (4) outside is fixed with solid fixed ring A (6), the tie ring B (5) outside is fixed with solid fixed ring B (7), tie ring A (4), tie ring B (5) inboard keep away from steel extexine (1) one end all is equipped with a plurality of guide way, ceramic inlayer A (3) left and right sides all is fixed with guide ring (8), fixed link to each other between guide ring (8) and the tie layer A (2), two be equipped with connection structure between steel extexine (1).

2. The sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to claim 1, wherein a plurality of positioning grooves are formed in one side, far away from the steel outer layer (1), of the fixing ring A (6), a plurality of positioning blocks (9) are fixed on one side, far away from the steel outer layer (1), of the fixing ring B (7), the positioning blocks (9) can slide on the inner sides of the positioning grooves, and chamfers are arranged on the inner sides of the guide rings (8).

3. The sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to claim 2, wherein a plurality of through holes are formed in one side of the fixing ring A (6) and one side of the fixing ring B (7), and the number of the through holes, the number of the positioning grooves and the number of the positioning blocks (9) are the same.

4. The sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to claim 1, wherein a mounting groove A is formed in one side of the fixing ring A (6) away from the steel outer layer (1), and a PTFE sealing ring A (10) is fixed inside the mounting groove A.

5. The sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to claim 1, wherein the connecting structure comprises a steel shell (11), the steel shell (11) is slidably arranged on the inner sides of a connecting ring A (4) and a connecting ring B (5), a connecting layer B (12) is fixedly arranged on the inner side of the steel shell (11), a ceramic inner layer B (13) is fixedly arranged on the inner side of the connecting layer B (12), a guide block (14) is fixedly arranged on the outer side of the steel shell (11), the guide block (14) can be slidably arranged on the inner side of a guide groove, and limiting rings (15) are fixedly arranged on the left end and the right end of the ceramic inner layer B (13) and are slidably arranged on the inner side of a guide ring (8).

6. The sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to claim 5, wherein mounting grooves B are formed in the left and right ends of the outer side of the steel shell (11), mounting grooves C are formed in the outer side of the limiting ring (15), PTFE sealing rings B (16) are fixed to the inner side of the mounting grooves B, and PTFE sealing rings C (17) are fixed to the inner side of the mounting grooves C.

7. The sulfuric acid dew point corrosion resistant ceramic steel composite pipe according to claim 5, wherein chamfers are arranged at one end of the outer side of the limiting ring (15) far away from the ceramic inner layer B (13) and at the left and right ends of the outer side of the steel shell (11).