Corrosion-resistant ceramic-lined composite steel pipe

Abstract

The utility model discloses a corrosion-resistant ceramic lining composite steel pipe which comprises a protection unit, the protection unit comprises two first arc-shaped plates, the rear ends of the two first arc-shaped plates are rotationally connected with second arc-shaped plates, and a plurality of protection strips are fixedly connected between the two first arc-shaped plates and the two second arc-shaped plates. Ceramic lining pipes are arranged on the inner sides of the first arc-shaped plate and the second arc-shaped plate, protective layers are fixedly connected to the inner sides of the ceramic lining pipes, buffer layers are fixedly connected to the inner sides of the protective layers, heat preservation layers are fixedly connected to the inner sides of the buffer layers, and anti-corrosion layers are fixedly connected to the inner sides of the heat preservation layers; the first arc-shaped plate and the second arc-shaped plate are installed on the steel pipe body, the outer side of the device is protected through the protection strips, the situation that the outside of the steel pipe body is damaged due to high pressure is avoided, the anti-corrosion layer is not conductive, the performance stability and corrosion resistance can be improved, and the corrosion resistance degree of the steel pipe body can be improved. And the service life and the practicability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a ceramic lined composite steel pipe with corrosion resistance. Background Art

[0002] Steel pipe is a steel product with a hollow cross-section and a length much larger than its diameter or circumference. It is divided into round, square, rectangular and special-shaped steel pipes according to the cross-sectional shape; it is divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe according to the material; it is divided into steel pipes for conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc. according to its use; it is divided into seamless steel pipes and welded steel pipes according to the production process. Seamless steel pipes are divided into hot-rolled and cold-rolled types, and welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes. Steel pipes are not only used to transport fluids and powdered solids, exchange heat, and manufacture mechanical parts and containers, but they are also an economical steel product.

[0003] The existing ceramic lined composite steel pipes are not easy to protect when in use, which results in the ceramic lined composite steel pipes being subjected to strong external pressure, causing the ceramic lined composite steel pipes to suffer pressure damage, thereby shortening the service life of the ceramic lined composite steel pipes and reducing the practicality of the device. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems existing in the existing corrosion-resistant ceramic-lined composite steel pipe, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a corrosion-resistant ceramic lined composite steel pipe, which is designed to solve the problem that "the ceramic lined composite steel pipe is inconvenient to protect the steel pipe when in use, resulting in the ceramic lined composite steel pipe being subjected to strong external pressure, causing the ceramic lined composite steel pipe to suffer pressure loss, thereby shortening the service life of the ceramic lined composite steel pipe and reducing the practicability of the device."

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a corrosion-resistant ceramic-lined composite steel pipe, comprising:

[0008] The main unit includes a steel pipe body;

[0009] The protection unit includes two first arc plates, which are symmetrically arranged on the steel pipe body, and the rear ends of the two first arc plates are rotatably connected to the second arc plates. A plurality of protection strips are fixedly connected between the two first arc plates and the two second arc plates. Ceramic lined pipes are arranged on the inner sides of the first arc plates and the second arc plates, and a protective layer is fixedly connected to the inner side of the ceramic lined pipe, a buffer layer is fixedly connected to the inner side of the protective layer, an insulation layer is fixedly connected to the inner side of the buffer layer, an anti-corrosion layer is fixedly connected to the inner side of the insulation layer, an insulating ceramic layer is fixedly connected to the inner side of the anti-corrosion layer, and the insulating ceramic layer is fit to the steel pipe body. A fixing component is arranged on the first arc plate, and a limiting component is arranged on the second arc plate.

[0010] As a preferred solution of the corrosion-resistant ceramic-lined composite steel pipe described in the utility model, wherein: the fixing assembly includes a fixing block, the fixing block is fixedly connected to the upper end of the first arc-shaped plate, a sliding groove is opened in the middle of the fixing block, the inner wall of the sliding groove is slidably connected to a first magnet, the rear end of the first magnet is fixedly connected to a connecting rod, the rear end of the connecting rod is fixedly connected to a first handle, the front end of the first magnet is fixedly connected to a pin, the inner wall of the sliding groove is fixedly connected to a second magnet, and the pin is slidably inserted into the fixing block and the second magnet.

[0011] As a preferred solution of the corrosion-resistant ceramic-lined composite steel pipe described in the utility model, the lower end of the first magnet is fixedly connected to a T-shaped slider, and the fixed block is provided with a T-shaped groove that cooperates with the T-shaped slider.

[0012] As a preferred solution of the corrosion-resistant ceramic-lined composite steel pipe described in the utility model, wherein: the limiting component includes a connecting block, the connecting block is fixedly connected to the upper end of the second arc-shaped plate, the pin is slidably inserted into the connecting block, a rectangular groove is provided on the connecting block, a rectangular plate is slidably connected to the inner wall of the rectangular groove, a spring is fixedly connected between the inner wall of the rectangular groove and the rectangular plate, a plug rod is fixedly connected to the lower end of the rectangular plate, and the plug pin is provided with a socket that cooperates with the plug rod.

[0013] As a preferred solution of the corrosion-resistant ceramic-lined composite steel pipe described in the utility model, the front end of the rectangular plate is fixedly connected to a second handle, the second handle is slidably connected to the connecting block, and the second handle and the first handle are both provided with anti-slip grooves.

[0014] As a preferred solution of the corrosion-resistant ceramic lined composite steel pipe described in the utility model, wherein: the inner sides of the first arc plate and the second arc plate are fixedly connected with protective pads, the outer side of the ceramic lined pipe is fixedly connected to the inner side of the protective pad, and the protective pad is made of rubber material.

[0015] Beneficial effects of the utility model:

[0016] When the device needs to be protected, the first arc plate is installed on the steel pipe body, and then the second arc plate is flipped so that the inner side of the second arc plate fits with the first arc plate. The outer side of the device can be protected by the protective strips on the first arc plate and the second arc plate to prevent the outside of the steel pipe body from being damaged by strong pressure. The anti-corrosion layer is not only non-conductive but also can improve the stable corrosion resistance and corrosion resistance of the steel pipe body. The insulating ceramic layer makes the ceramic lined pipe have an insulating effect, which can enhance the safety of the steel pipe body when transmitting some media. The thermal insulation layer can insulate the steel pipe body so that it will not be affected by hot and cold changes in extreme weather. The protective layer can protect the steel pipe body, thereby improving the service life and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of a corrosion-resistant ceramic-lined composite steel pipe proposed by the utility model;

[0019] Figure 2 for Figure 1 A right view structural diagram of ;

[0020] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the latch, T-shaped slider and socket;

[0022] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure of the fixed block and the connecting block.

[0023] In the figure: 100, main unit; 101, steel pipe body; 200, protection unit; 201, first arc plate; 202, second arc plate; 203, protection strip; 204, ceramic lined pipe; 205, protection layer; 206, buffer layer; 207, insulation layer; 208, anti-corrosion layer; 209, insulating ceramic layer; 210, protection pad; 211, fixing assembly; 211a, fixing block; 211b, sliding groove; 211c, first magnet; 211d, connecting rod; 211e, first handle; 211f, latch; 211g, second magnet; 212, T-shaped slider; 213, T-shaped slide groove; 214, limiting assembly; 214a, connecting block; 214b, rectangular groove; 214c, rectangular plate; 214d, spring; 214e, plug rod; 214f, socket; 215, second handle. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Reference Figure 1 -5. The utility model provides a corrosion-resistant ceramic-lined composite steel pipe, comprising:

[0029] The main unit 100 includes a steel pipe body 101;

[0030] The protection unit 200 includes two first curved plates 201, the two first curved plates 201 are symmetrically arranged on the steel pipe body 101, the rear ends of the two first curved plates 201 are rotatably connected to the second curved plates 202, a plurality of protection strips 203 are fixedly connected between the two first curved plates 201 and the two second curved plates 202, a ceramic lining tube 204 is arranged inside the first curved plate 201 and the second curved plate 202, and the ceramic lining tube 204 is fixed inside the ceramic lining tube 204. A protective layer 205 is fixedly connected to the inner side of the protective layer 205, a buffer layer 206 is fixedly connected to the inner side of the buffer layer 206, an insulation layer 207 is fixedly connected to the inner side of the insulation layer 207, an anti-corrosion layer 208 is fixedly connected to the inner side of the anti-corrosion layer 208, an insulating ceramic layer 209 is fixedly connected to the inner side of the insulating ceramic layer 209, the insulating ceramic layer 209 is in contact with the steel pipe body 101, a fixing component 211 is provided on the first arc plate 201, and a limiting component 214 is provided on the second arc plate 202.

[0031] The fixing assembly 211 includes a fixing block 211a, which is fixedly connected to the upper end of the first arc-shaped plate 201. A sliding groove 211b is provided in the middle of the fixing block 211a. A first magnet 211c is slidably connected to the inner wall of the sliding groove 211b. A connecting rod 211d is fixedly connected to the rear end of the first magnet 211c. A first handle 211e is fixedly connected to the rear end of the connecting rod 211d. A latch 211f is fixedly connected to the front end of the first magnet 211c. A second magnet 211g is fixedly connected to the inner wall of the sliding groove 211b. The latch 211e is fixedly connected to the rear end of the connecting rod 211d. 1f slides and penetrates the fixed block 211a and the second magnet 211g. When in use, the first handle 211e is pushed forward, so that the first handle 211e drives the connecting rod 211d, and the connecting rod 211d drives the first magnet 211c to slide in the sliding groove 211b, so that the first magnet 211c drives the latch 211f. When the first magnet 211c slides to the front end of the sliding groove 211b, the second magnet 211g is used to make the second magnet 211g and the first magnet 211c attract each other to restrict the latch 211f.

[0032] Furthermore, the lower end of the first magnet 211c is fixedly connected to a T-shaped slider 212, and the fixed block 211a is provided with a T-shaped slot 213 that cooperates with the T-shaped slider 212. By providing the T-shaped slider 212 and the T-shaped slot 213, the first magnet 211c can drive the T-shaped slider 212 to slide in the T-shaped slot 213 when sliding, thereby improving the stability of the first magnet 211c.

[0033] Furthermore, the limiting assembly 214 includes a connecting block 214a, which is fixedly connected to the upper end of the second arc-shaped plate 202, and a latch 211f is slidably inserted into the connecting block 214a. A rectangular groove 214b is provided on the connecting block 214a, and a rectangular plate 214c is slidably connected to the inner wall of the rectangular groove 214b. A spring 214d is fixedly connected between the inner wall of the rectangular groove 214b and the rectangular plate 214c, and a plug rod is fixedly connected to the lower end of the rectangular plate 214c. 214e, the latch 211f is provided with a socket 214f ​​which cooperates with the plug rod 214e. When in use, the rectangular plate 214c slides upward to drive the plug rod 214e, the spring is compressed, and then the latch 211f is inserted into the rectangular groove 214b in the fixed block 211a. Then, the rectangular plate 214c is released to make the spring 214d rebound, and the rectangular plate 214c drives the plug rod 214e to be inserted into the socket 214f ​​on the latch 211f for restriction.

[0034] Furthermore, a second handle 215 is fixedly connected to the front end of the rectangular plate 214c, and the second handle 215 is slidably connected to the connecting block 214a. Anti-slip grooves are provided on the second handle 215 and the first handle 211e. The anti-slip grooves can increase the friction between the second handle 215, the first handle 211e and the hand, thereby improving the stability of the second handle 215, the first handle 211e and the hand.

[0035] Furthermore, a protective pad 210 is fixedly connected to the inner side of the first curved plate 201 and the second curved plate 202, and the outer side of the ceramic lined tube 204 is fixedly connected to the inner side of the protective pad 210. The protective pad 210 is made of rubber material. By providing the protective pad 210, the protective pad 210 can protect the ceramic lined tube 204 to avoid damage to the ceramic lined tube 204 when installing the first curved plate 201 and the second curved plate 202.

[0036] During use, the first curved plate 201 is installed on the steel pipe body 101, and then the second curved plate 202 is turned over so that the inner side of the second curved plate 202 fits with the first curved plate 201, and the outer side of the device can be protected by the protective strips 203 on the first curved plate 201 and the second curved plate 202. Then, the second handle 215 is pulled upward so that the second handle 215 drives the rectangular plate 214c, and the rectangular plate 214c drives the insertion rod 214e to slide upward, and the spring is compressed. Then, the first handle 211e is pushed forward so that the first handle 211e drives the connecting rod 211d, and the connecting rod 211d drives the first magnet 211c to slide in the sliding groove 211b, so that the first magnet 211c drives the latch 211f, and when the first magnet 211c slides to the front end of the sliding groove 211b, the latch 211f is inserted into the rectangular groove 214 on the connecting block 214a. b, through the action of the second magnet 211g, the second magnet 211g and the first magnet 211c attract each other to restrict the pin 211f, so that the pin 211f is inserted into the rectangular groove 214b in the fixed block 211a, and then the rectangular plate 214c is loosened to make the spring 214d rebound, and the rectangular plate 214c drives the plug 214e to be inserted into the socket 214f ​​on the pin 211f for restriction. The anti-corrosion layer 208 is not only non-conductive, but also can improve the stable corrosion resistance and corrosion resistance of the steel pipe body 101. The insulating ceramic layer 209 makes the ceramic lined pipe 204 have an insulating effect, which can enhance the safety of the steel pipe body 101 when transmitting some media. The steel pipe body 101 can be insulated by the insulation layer 207 so that it will not be affected by hot and cold changes in extreme weather. The protective layer 205 can protect the steel pipe body 101.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A corrosion-resistant ceramic-lined composite steel pipe, characterized in that: include: The main unit (100) comprises a steel pipe body (101); The protection unit (200) comprises two first curved plates (201), the two first curved plates (201) are symmetrically arranged on the steel pipe body (101), the rear ends of the two first curved plates (201) are rotatably connected to the second curved plates (202), a plurality of protection strips (203) are fixedly connected between the two first curved plates (201) and the two second curved plates (202), the inner sides of the first curved plates (201) and the second curved plates (202) are both provided with ceramic lined tubes (204), the inner sides of the ceramic lined tubes (204) are fixedly connected to A protective layer (205), a buffer layer (206) is fixedly connected to the inner side of the protective layer (205), a thermal insulation layer (207) is fixedly connected to the inner side of the buffer layer (206), an anti-corrosion layer (208) is fixedly connected to the inner side of the thermal insulation layer (207), an insulating ceramic layer (209) is fixedly connected to the inner side of the anti-corrosion layer (208), the insulating ceramic layer (209) and the steel pipe body (101) are mutually bonded, a fixing component (211) is arranged on the first arc plate (201), and a limiting component (214) is arranged on the second arc plate (202).

2. The corrosion-resistant ceramic-lined composite steel pipe according to claim 1, characterized in that: The fixing assembly (211) comprises a fixing block (211a), wherein the fixing block (211a) is fixedly connected to the upper end of the first arc-shaped plate (201), a sliding groove (211b) is provided in the middle of the fixing block (211a), a first magnet (211c) is slidably connected to the inner wall of the sliding groove (211b), a connecting rod (211d) is fixedly connected to the rear end of the first magnet (211c), a first handle (211e) is fixedly connected to the rear end of the connecting rod (211d), a latch (211f) is fixedly connected to the front end of the first magnet (211c), a second magnet (211g) is fixedly connected to the inner wall of the sliding groove (211b), and the latch (211f) is slidably inserted into the fixing block (211a) and the second magnet (211g).

3. The corrosion-resistant ceramic-lined composite steel pipe according to claim 2, characterized in that: The lower end of the first magnet (211c) is fixedly connected to a T-shaped slider (212), and the fixed block (211a) is provided with a T-shaped sliding groove (213) that cooperates with the T-shaped slider (212).

4. The corrosion-resistant ceramic-lined composite steel pipe according to claim 3, characterized in that: The limiting component (214) comprises a connecting block (214a), the connecting block (214a) is fixedly connected to the upper end of the second arc-shaped plate (202), the latch (211f) is slidably inserted into the connecting block (214a), a rectangular groove (214b) is provided on the connecting block (214a), a rectangular plate (214c) is slidably connected to the inner wall of the rectangular groove (214b), a spring (214d) is fixedly connected between the inner wall of the rectangular groove (214b) and the rectangular plate (214c), an insertion rod (214e) is fixedly connected to the lower end of the rectangular plate (214c), and a socket (214f) cooperating with the insertion rod (214e) is provided on the latch (211f).

5. The corrosion-resistant ceramic-lined composite steel pipe according to claim 4, characterized in that: A second handle (215) is fixedly connected to the front end of the rectangular plate (214c), the second handle (215) is slidably connected to the connecting block (214a), and anti-slip grooves are provided on the second handle (215) and the first handle (211e).

6. The corrosion-resistant ceramic-lined composite steel pipe according to claim 5, characterized in that: The inner sides of the first curved plate (201) and the second curved plate (202) are both fixedly connected with protective pads (210), the outer side of the ceramic lined tube (204) is fixedly connected to the inner side of the protective pads (210), and the protective pads (210) are made of rubber material.

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