Corrosion-resistant seamless steel tube

Abstract

The utility model relates to a corrosion-resistant seamless steel pipe which comprises a steel pipe body, the length direction of the steel pipe body extends in the front-back direction, the steel pipe body is arranged in a hollow cylindrical shape, and the corrosion-resistant seamless steel pipe further comprises a front installation piece and a rear installation piece, and the front installation piece comprises a front installation disc on the front side and a front connection sleeve attached to the inner wall of the steel pipe body. The rear mounting piece comprises a rear mounting disc on the rear side and a rear connecting sleeve attached to the inner wall of the steel pipe body, the rear side of the front connecting sleeve abuts against the front side of the rear connecting sleeve, the front mounting disc and the rear mounting disc are detachably connected with the front side and the rear side of the steel pipe body respectively, and the front connecting sleeve and the rear connecting sleeve are both made of corrosion-resistant materials. By the adoption of the scheme, when corrosive liquid enters the steel pipe body to damage the front connecting sleeve and the rear connecting sleeve, the front mounting piece and the rear mounting piece are detached respectively, and then the front connecting sleeve and the rear connecting sleeve can be replaced with new front connecting sleeve and new rear connecting sleeve.

Description

Technical Field

[0001] The utility model relates to seamless steel pipes, in particular to a corrosion-resistant seamless steel pipe. Background Art

[0002] Seamless steel pipes are widely used in industrial production, urban construction and other fields. Seamless steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials.

[0003] During the process of transporting fluids, if the fluid contains acids, alkalis, salts or other chemical substances, it may cause corrosion to the inner wall of the steel pipe, which will cause inconvenience to the subsequent use of the steel pipe. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a corrosion-resistant seamless steel pipe. When corrosive liquid enters the inside of the steel pipe body and causes damage to the front connecting sleeve and the rear connecting sleeve, the front connecting sleeve and the rear connecting sleeve can be replaced by removing the front mounting part and the rear mounting part respectively.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: It includes a steel pipe body, the length direction of the steel pipe body extends along the front and rear and is arranged in a hollow cylindrical shape. It is characterized in that: it further includes a front mounting part and a rear mounting part. The front mounting part includes a front mounting disc on the front side and a front connecting sleeve that fits the inner wall of the steel pipe body. The rear mounting part includes a rear mounting disc on the rear side and a rear connecting sleeve that fits the inner wall of the steel pipe body. The rear side of the front connecting sleeve abuts against the front side of the rear connecting sleeve. The front mounting disc and the rear mounting disc are respectively detachably connected to the front and rear sides of the steel pipe body. The front connecting sleeve and the rear connecting sleeve are both made of corrosion-resistant materials.

[0006] The utility model is further provided as: a front magnet is fixed on the front connecting sleeve, and a rear magnet that attracts the front magnet is fixed on the rear connecting sleeve.

[0007] The utility model is further provided as: it further includes a plurality of bolts arranged at intervals along the circumferential direction of the steel pipe body. The steel pipe body includes a mounting groove for inserting the front mounting disc. Each bolt is inserted into the steel pipe body and is in threaded cooperation with the front mounting disc.

[0008] The utility model is further provided as: a plurality of positioning inserts are prominently arranged in the mounting groove of the steel pipe body. The front mounting disc is made of a material that is easy to deform and is provided with positioning slots corresponding to the mounting inserts. A disassembly and assembly groove is arranged in the front mounting disc.

[0009] The utility model is further provided as: each of the positioning inserts is arranged in a trapezoidal shape with a narrow front and a wide rear.

[0010] The present utility model is further configured as follows: it further includes a base, on which a left guard plate and a right guard plate made of a material prone to deformation are fixedly installed. The left guard plate and the right guard plate are respectively arranged in an arc shape with the opening facing right and left. The left guard plate and the right guard plate are detachably connected, and a plurality of suction cups for sucking and engaging with the steel pipe body are arranged on both the left and right guard plates.

[0011] The present utility model is further configured as follows: the right guard plate protrudes leftward with a connecting plate, and the left guard plate is provided with a connecting groove corresponding to the connecting plate.

[0012] By adopting the above technical solutions, 1. Since both the front connecting sleeve and the rear connecting sleeve are in contact with the inner wall of the steel pipe body, if corrosive liquid flows into the interior of the steel pipe body, then when the corrosive liquid enters the interior of the steel pipe body, it will enter the front connecting sleeve and the rear connecting sleeve in sequence from front to back. Also, because both the front connecting sleeve and the rear connecting sleeve are made of corrosion-resistant materials, when the corrosive liquid enters the front connecting sleeve and the rear connecting sleeve, the front connecting sleeve and the rear connecting sleeve have good resistance to corrosive liquids such as acids and alkalis. And if the front connecting sleeve and the rear connecting sleeve are damaged, the front mounting plate and the rear mounting plate can be removed from the steel pipe body, and then the front connecting sleeve and the rear connecting sleeve can be taken out and new front connecting sleeve and rear connecting sleeve can be installed, thereby extending the service life of the steel pipe body; 2. Since the front mounting plate and the rear mounting plate are respectively detachably connected to the front and rear sides of the steel pipe body, after the front mounting member and the rear mounting member are respectively installed into the steel pipe body, when liquid flows into the steel pipe body, the hydraulic pressure cannot push the front mounting member forward and the rear mounting member backward. Therefore, the front mounting member and the rear mounting member can be stably located inside the steel pipe body. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is an assembly drawing of the specific implementation manner of the present utility model;

[0015] Figure 2 It is a sectional view of the present utility model from back to front;

[0016] Figure 3 It is an exploded view of the present utility model;

[0017] Figure 4 It is a sectional view of the present utility model from right to left;

[0018] Figure 5 is Figure 2 An enlarged view of A in

[0019] Figure 6 is Figure 3 An enlarged view of B in

[0020] Figure 7 is Figure 3 An enlarged view of C in

[0021] Figure 8 is Figure 4 An enlarged view of D in

[0022] In the figure: 1 - steel pipe body, 11 - installation groove, 12 - positioning insert block;

[0023] 2 - front mounting member, 21 - front mounting plate, 211 - positioning slot, 212 - disassembly and assembly groove, 22 - front connecting sleeve, 221 - front magnet;

[0024] 3 - rear mounting member, 31 - rear mounting plate, 32 - rear connecting sleeve, 321 - rear magnet;

[0025] 4 - suction cup;

[0026] 5 - base, 51 - left guard plate, 511 - connecting groove, 52 - right guard plate, 521 - connecting plate;

[0027] 6 - bolt. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Such as Figures 1-8As shown in the figure, the utility model discloses a corrosion-resistant seamless steel pipe, which includes a steel pipe body 1. The length direction of the steel pipe body 1 extends along the front and back and is arranged in a cylindrical shape with a hollow interior. Therefore, liquid can flow through the steel pipe body to realize the function of transporting fluid by the steel pipe body 1. It also includes a front mounting part 2 and a rear mounting part 3. The front mounting part 2 includes a front mounting disc 21 on the front side and a front connecting sleeve 22 that fits against the inner wall of the steel pipe body 1. The rear mounting part 3 includes a rear mounting disc 31 on the rear side and a rear connecting sleeve 32 that fits against the inner wall of the steel pipe body 1. The diameters of the front mounting disc 21 and the rear mounting disc 31 are both larger than those of the front connecting sleeve 22 and the rear connecting sleeve 32. The rear side of the front connecting sleeve 22 abuts against the front side of the rear connecting sleeve 32. The front mounting disc 21 and the rear mounting disc 31 are respectively detachably connected to the front and rear sides of the steel pipe body 1 by means of buckles, bolts, etc. The front connecting sleeve 22 and the rear connecting sleeve 32 are both made of corrosion-resistant materials such as nickel-based alloys, aluminum and aluminum alloys, and polytetrafluoroethylene. 1. Since both the front connecting sleeve 22 and the rear connecting sleeve 32 are in contact with the inner wall of the steel pipe body 1, when corrosive liquid flows into the interior of the steel pipe body 1, the corrosive liquid will enter the front connecting sleeve 22 and the rear connecting sleeve 32 in sequence from front to back when entering the interior of the steel pipe body 1. Also, because the front connecting sleeve 22 and the rear connecting sleeve 32 are both made of corrosion-resistant materials, when the corrosive liquid enters the front connecting sleeve 22 and the rear connecting sleeve 32, the front connecting sleeve 22 and the rear connecting sleeve 32 have good resistance to corrosive liquids such as acids and alkalis. If the front connecting sleeve 22 and the rear connecting sleeve 32 are damaged, the front mounting disc 21 and the rear mounting disc 31 can be removed from the steel pipe body 1 to take out the front connecting sleeve 22 and the rear connecting sleeve 32, and then new front connecting sleeve 22 and rear connecting sleeve 32 can be installed to extend the service life of the steel pipe body 1; 2. Since the front mounting disc 21 and the rear mounting disc 31 are respectively detachably connected to the front and rear sides of the steel pipe body 1, after the front mounting part 2 and the rear mounting part 3 are respectively installed into the steel pipe body 1, when liquid flows into the steel pipe body 1, the hydraulic pressure cannot push the front mounting part 2 forward and the rear mounting part 3 backward. Therefore, the front mounting part 2 and the rear mounting part 3 can be stably located inside the steel pipe body 1.

[0030] Preferably, a front magnet 221 is fixed to the front connecting sleeve 22 by welding or the like, and a rear magnet 321 that attracts the front magnet 221 is fixed to the rear connecting sleeve 32 by welding or the like. Since the front magnet 221 and the rear magnet 321 attract each other, after the front mounting plate 21, the rear mounting plate 31 and the steel pipe body 1 are connected and fixed, at this time, due to the abutting front connecting sleeve 22 and the rear connecting sleeve 32 attracting each other, the front mounting member 2 and the rear mounting member 3 can be more stably located inside the steel pipe body 1. When the front mounting plate 21 and the rear mounting plate 31 are removed from the front and rear sides of the steel pipe body 1, at this time, applying force to the front connecting sleeve 22 and the rear connecting sleeve 32 respectively in the front and rear directions can separate the front magnet 221 and the rear magnet 321 and take out the front connecting sleeve 22 and the rear connecting sleeve 32 from the steel pipe body 1.

[0031] Among them, it further includes a plurality of bolts 6 arranged at intervals along the circumferential direction of the steel pipe body 1. The steel pipe body 1 includes a mounting groove 11 for inserting the front mounting plate 21. Each of the bolts 6 is inserted into the steel pipe body 1 and is in threaded cooperation with the front mounting plate 21. Since each bolt 6 is inserted into the steel pipe body 1 and is in threaded cooperation with the front mounting plate 21, after the front mounting member 2 is inserted into the steel pipe body 1, at this time, since the diameter of the front mounting plate 21 is larger than that of the front connecting sleeve 22, the front mounting plate 21 cannot move backward after being located in the mounting groove 11. Therefore, after each bolt 6 is inserted, the front mounting member 2 cannot rotate inside the steel pipe body 1 and cannot move back and forth, so that the front mounting member 2 can be stably located inside the steel pipe body 1. Reversely rotating each bolt 6 can separate each bolt 6 from the front mounting plate 21 and thus the front mounting member 2 can be taken out from the steel pipe body 1.

[0032] Among them, a plurality of positioning inserts 12 are protrudingly arranged in the mounting groove 11 of the steel pipe body 1. The front mounting plate 21 is made of a material such as rubber that is easy to deform, and positioning slots 211 are provided corresponding to the mounting inserts. A disassembly and assembly groove 212 is arranged in the front mounting plate 21. 1. When the front mounting member 2 is inserted into the steel pipe body 1, at this time, the front mounting plate 21 enters the mounting groove 11, and each positioning slot 211 of the front mounting plate 21 cooperates with the corresponding positioning insert 12, so that each positioning insert 12 can enter the corresponding positioning slot 211. At this time, the front mounting plate 21 cannot rotate inside the steel pipe body 1, which facilitates the threaded cooperation between each bolt 6 and the front mounting plate 21 when the bolts are inserted. 2. After reversely rotating each bolt 6 to separate it from the front mounting plate 21, at this time, a hand or an operating tool can extend into the disassembly and assembly groove 212 in the front mounting plate 21 and apply a forward force to the front mounting plate 21, so that the front mounting plate 21 is separated from the mounting groove 11, which facilitates the removal of the front positioning member from the steel pipe body 1.

[0033] Preferably, each of the positioning blocks 12 is arranged in a stepped shape with a narrow front and a wide rear. Therefore, when the front mounting plate 21 enters the mounting groove 11, the first thing to enter the corresponding positioning slot 211 is the frontmost side of each positioning block 12. Moreover, because each of the positioning blocks 12 is arranged in a stepped shape with a narrow front and a wide rear, the first thing to enter the positioning slot 211 is the narrowest part of each positioning block 12. As a result, each positioning block 12 can enter the corresponding positioning slot 211 more smoothly, thereby realizing the cooperation between each positioning block 12 and the positioning slot 211, so that the front mounting plate 21 can be stably located in the positioning slot 211 and the front mounting plate 21 cannot rotate.

[0034] In addition, it also includes a base 5, on which a left guard plate 51 and a right guard plate 52 made of a deformable material such as rubber are fixedly installed, and the left guard plate 51 and the right guard plate 52 are respectively arranged in an arc shape with an opening facing right and an opening facing left, and the left guard plate 51 and the right guard plate 52 are detachably connected by means of magnetic attraction, snap fasteners, etc., and the left and right guard plates 52 are both provided with a plurality of suction cups 4 that are attracted to the steel pipe body 1. After the seamless steel pipe is laid, the bottom end of the steel pipe body 1 that contacts the ground is easily corroded by the wet ground, and the pipe body is easily moved after being placed due to the curved surface. Because the left guard plate 51 and the right guard plate 52 are both fixedly installed on the base 5 and the left guard plate 51 and the right guard plate 52 are made of a deformable material, the left guard plate 51 and the right guard plate 52 can be staggered by bending them, so that the steel pipe body 1 can be placed between the two. The guard plate 51 is in the shape of an arc with its opening facing right, and the right guard plate 52 is in the shape of an arc with its opening facing left, so that the left guard plate 51 and the right guard plate 52 can be located in the circumference of the steel pipe body 1, and the suction cups 4 on the left guard plate 51 and the right guard plate 52 can be sucked together with the steel pipe body 1 so that the steel pipe body 1 is stably located between the left guard plate 51 and the right guard plate 52. After the steel pipe body 1 is placed between the left guard plate 51 and the right guard plate 52, the height of the bottom of the steel pipe is raised so as to avoid the bottom of the steel pipe body 1 from being separated from the bottom surface and being corroded by the wet ground, and due to the presence of the suction cups 4, the steel pipe body 1 will not move between the left guard plate 51 and the right guard plate 52 in the absence of external force, and the left guard plate 51 and the right guard plate 52 are detachably connected, so that the steel pipe body 1 will not be taken out from between the left guard plate 51 and the right guard plate 52 in the absence of external force.

[0035] Among them, the right guard plate 52 is provided with a connecting plate 521 protruding to the left, and the left guard plate 51 is provided with a connecting groove 511 corresponding to the connecting plate 521. Since the left guard plate 51 and the right guard plate 52 are easy to deform, when the steel pipe body 1 needs to be installed, a force is applied to the left guard plate 51 and a force is applied to the right guard plate 52. At this time, the connecting plate 521 of the right guard plate 52 will be taken out from the connecting groove 511 of the left guard plate 51. At this time, the left guard plate 51 and the right guard plate 52 are staggered to place the steel pipe body 1 between the two. At this time, the force is applied to make the left guard plate 51 and the right guard plate 52 located in the circumference of the steel pipe body 1 close to each other, so that the connecting plate 521 of the right guard plate 52 521 is inserted into the connecting groove 511 of the left guard plate 51, at which time the left guard plate 51 and the right guard plate 52 can be connected together so that the steel pipe body 1 cannot be separated from the left guard plate 51 and the right guard plate 52 upward, and at this time the suction cups 4 on the left guard plate 51 and the right guard plate 52 will be sucked together with the steel pipe body 1 so that the steel pipe body 1 can be stably located between the left guard plate 51 and the right guard plate 52, when a left force is applied to the left guard plate 51 and a right force is applied to the right guard plate 52, at this time the connecting plate 521 of the right guard plate 52 will be taken out from the connecting groove 511 of the left guard plate 51, and then the steel pipe body 1 can be taken out from between the left guard plate 51 and the right guard plate 52.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A corrosion-resistant seamless steel pipe, comprising a steel pipe body, wherein the length direction of the steel pipe body extends forward and backward and is arranged in a hollow cylindrical shape, characterized in that: It also includes a front mounting part and a rear mounting part, the front mounting part includes a front mounting plate on the front side and a front connecting sleeve that fits the inner wall of the steel pipe body, the rear mounting part includes a rear mounting plate on the rear side and a rear connecting sleeve that fits the inner wall of the steel pipe body, the rear side of the front connecting sleeve abuts against the front side of the rear connecting sleeve, the front mounting plate and the rear mounting plate are respectively detachably connected to the front and rear sides of the steel pipe body, and the front connecting sleeve and the rear connecting sleeve are both made of corrosion-resistant material.

2. A corrosion-resistant seamless steel pipe according to claim 1, characterized in that: A front magnet is fixed on the front connecting sleeve, and a rear magnet that is attracted to the front magnet is fixed on the rear connecting sleeve.

3. A corrosion-resistant seamless steel pipe according to claim 2, characterized in that: It also includes a plurality of bolts arranged at intervals along the circumference of the steel pipe body. The steel pipe body includes a mounting groove for inserting the front mounting plate. Each of the bolts is inserted into the steel pipe body and is threadedly matched with the front mounting plate.

4. A corrosion-resistant seamless steel pipe according to claim 3, characterized in that: The steel pipe body is located in the installation groove and is protruded with a plurality of positioning plugs. The front installation plate is made of a material that is easy to deform and is provided with a positioning slot corresponding to each installation plug. A disassembly groove is provided in the front installation plate.

5. The corrosion-resistant seamless steel pipe according to claim 4, characterized in that: Each of the positioning plug blocks is arranged in a stepped shape with a narrow front and a wide rear.

6. The corrosion-resistant seamless steel pipe according to claim 1, characterized in that: It also includes a base, on which a left guard plate and a right guard plate made of a deformable material are fixedly installed. The left guard plate and the right guard plate are respectively arranged in an arc shape with openings facing right and left. The left guard plate and the right guard plate are detachably connected, and the left and right guard plates are both provided with a number of suction cups that engage with the steel pipe body.

7. The corrosion-resistant seamless steel pipe according to claim 6, characterized in that: The right guard plate is provided with a connecting plate protruding toward the left, and the left guard plate is provided with a connecting groove corresponding to the connecting plate.

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