High-compression-resistance ceramic lining composite steel pipe

Abstract

The utility model discloses a high-compression-resistance ceramic lining composite steel pipe, which comprises a main body unit comprising an outer-layer steel pipe, a transition layer fixedly arranged on the inner wall of the outer-layer steel pipe, an inner-layer ceramic lining fixedly arranged on the inner wall of the transition layer, a mounting mechanism arranged on the outer wall of the outer-layer steel pipe, clamping mechanisms arranged at two ends of the outer-layer steel pipe, and a discharge pipe fixedly arranged on the outer-layer steel pipe; the working unit comprises a mounting pipe, a rotating block is arranged at one end of the mounting pipe in a threaded mode, a fixing block is fixedly arranged on one side of the rotating block, and a buffering mechanism is arranged in the mounting pipe. The butt-joint layer is arranged at one end of the outer-layer steel pipe, the butt-joint opening is formed in the other end of the outer-layer steel pipe, and the butt-joint layer and the butt-joint opening are connected through the first fixing ring and the second fixing ring, so that the situation that corundum ceramic pieces on the two sides are easily affected when high-pressure and high-temperature or corrosive materials are conveyed due to the fact that no corundum ceramic layer exists at the joint can be avoided; the service life of the steel pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of composite steel pipes, in particular to a high-pressure-resistant ceramic-lined composite steel pipe. Background Art

[0002] Ceramic lined composite steel pipe is a pipe composed of an outer steel pipe and an inner ceramic lining. It has the advantages of good corrosion resistance, good high temperature stability, good wear resistance, and environmental protection and reliability. Therefore, it is widely used in chemical, metallurgical, petroleum, electric power and other industries.

[0003] Most of the existing ceramic-lined composite steel pipes have the following problems: 1. The corundum ceramic layers at the joints of the two steel pipes are not connected to each other, which can easily affect the corundum ceramic sheets on both sides when transmitting high-pressure, high-temperature or corrosive materials, reducing the service life of the steel pipe; 2. The impact force faced at the corners of the steel pipe is relatively large, and the pipe wall at the bending point is easily broken when a large amount of work is carried out continuously, affecting normal production. 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 above problems existing in the existing high pressure-resistant ceramic-lined composite steel pipe, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a high-pressure ceramic-lined composite steel pipe, which is designed to solve the problem that the corundum ceramic layers of the two steel pipes are not connected to each other at the connection point, which easily affects the corundum ceramic sheets on both sides when transmitting high-pressure, high-temperature or corrosive materials, thereby reducing the service life of the steel pipe. The impact force faced at the corners is relatively large, and the pipe wall at the bending point is easily broken when a large amount of work is carried out continuously, affecting normal production.

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

[0008] The main unit comprises an outer steel pipe, a transition layer is fixedly provided on the inner wall of the outer steel pipe, an inner ceramic lining is fixedly provided on the inner wall of the transition layer, a mounting mechanism is provided on the outer wall of the outer steel pipe, a locking mechanism is provided at both ends of the outer steel pipe, and a discharge pipe is fixedly provided on the outer steel pipe;

[0009] The working unit comprises a mounting tube, a rotating block is threadedly arranged at one end of the mounting tube, a fixed block is fixedly arranged at one side of the rotating block, a buffer mechanism is arranged inside the mounting tube, a mounting ring is fixedly arranged on the mounting tube, and the mounting tube is fixed to one end of the outer steel tube through the mounting ring.

[0010] As a preferred solution of the high-pressure ceramic-lined composite steel pipe described in the utility model, the installation mechanism includes a first fixing ring, the first fixing ring is fixed on one side of the outer steel pipe, a tightening screw is threadedly connected to the first fixing ring, a second fixing ring is fixed on the outer steel pipe, and a fixing groove used in conjunction with the tightening screw is opened on the second fixing ring.

[0011] As a preferred solution of the high pressure-resistant ceramic lined composite steel pipe described in the utility model, the locking mechanism includes a docking layer, the docking layer is fixed on one side of the outer steel pipe, the docking layer is made of corundum ceramic, a fixing hole is provided on the docking layer, and a docking port is provided at one end of the outer steel pipe, and the docking port and the docking layer are used in combination.

[0012] As a preferred solution of the high-pressure ceramic-lined composite steel pipe described in the utility model, the buffer mechanism includes a fixed box, the fixed box is fixedly set on the rotating block, a spring damper is fixedly arranged in the fixed box, one end of the spring damper is fixedly connected to a cylinder, and a buffer pad is fixedly arranged on the cylinder output shaft.

[0013] As a preferred solution of the high-pressure ceramic-lined composite steel pipe described in the utility model, the buffer pad is tightly fitted with the inner ceramic lining, and the cylinder is slidably connected to the inner wall of the fixed box.

[0014] As a preferred solution of the high-pressure ceramic-lined composite steel pipe described in the utility model, a thread groove is provided on the outer steel pipe, and the thread groove is connected to the fixing hole by screws.

[0015] Beneficial effects of the utility model:

[0016] 1. A docking layer is provided at one end of the outer steel pipe, and a docking port is provided at the other end. The two are connected by a first fixing ring and a second fixing ring, which can avoid the absence of a corundum ceramic layer at the connection, which can easily affect the corundum ceramic sheets on both sides when transmitting high-pressure, high-temperature or corrosive materials, thereby enhancing the service life of the steel pipe.

[0017] 2. A mounting pipe is installed at one end of the outer steel pipe. The spring damper inside the mounting pipe is used to reduce the impact force of the material on the pipe wall, thereby avoiding the occurrence of pipeline damage. At the same time, a cylinder is installed inside it, which can push the material attached to the buffer pad to the discharge pipe after the material transmission is completed, saving cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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:

[0019] Figure 1 This is a schematic diagram of the overall front structure of a high-pressure ceramic-lined composite steel pipe proposed by the utility model;

[0020] Figure 2 is a schematic diagram of the docking layer structure;

[0021] Figure 3 Schematic diagram of the cross-sectional structure of the outer steel pipe;

[0022] Figure 4 This is a schematic diagram of the installation pipe structure;

[0023] Figure 5 This is a schematic diagram of the installation pipe structure;

[0024] In the figure: 100, main unit; 101, outer steel pipe; 102, transition layer; 103, inner ceramic lining; 104, installation mechanism; 104a, first fixing ring; 104b, tightening screw; 104c, second fixing ring; 104d, fixing groove; 105, locking mechanism; 105a, docking layer; 105b, fixing hole; 105c, docking port; 106, discharge pipe; 200, working unit; 201, mounting pipe; 202, rotating block; 203, fixed block; 204, buffer mechanism; 204a, fixed box; 204b, spring damper; 204c, cylinder; 204d, buffer pad; 205, mounting ring. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Reference Figure 1 -5. The utility model provides a high-pressure ceramic-lined composite steel pipe, comprising:

[0030] The main unit 100 includes an outer steel pipe 101, a transition layer 102 is fixedly provided on the inner wall of the outer steel pipe 101, an inner ceramic lining 103 is fixedly provided on the inner wall of the transition layer 102, a mounting mechanism 104 is provided on the outer wall of the outer steel pipe 101, a locking mechanism 105 is provided at both ends of the outer steel pipe 101, and a discharge pipe is fixedly provided on the outer steel pipe 101; the working unit 200 includes a mounting pipe 201, a rotating block 202 is threadedly provided on one end of the mounting pipe 201, a fixed block 203 is fixedly provided on one side of the rotating block 202, a buffer mechanism 204 is provided inside the mounting pipe 201, a mounting ring 205 is fixedly provided on the mounting pipe 201, and the mounting pipe 201 is fixed to one end of the outer steel pipe 101 through the mounting ring 205.

[0031] The mounting mechanism 104 includes a first fixing ring 104a, which is fixed to one side of the outer steel pipe 101, and a tightening screw 104b is threadedly connected to the first fixing ring 104a, and a second fixing ring 104c is fixed to the outer steel pipe 101, and a fixing groove 104d used in conjunction with the tightening screw 104b is provided on the second fixing ring 104c. The locking mechanism 105 includes a docking layer 105a, which is fixed to one side of the outer steel pipe 101, and the docking layer 105a is made of corundum ceramic, and a fixing hole 105b is provided on the docking layer 105a, and one end of the outer steel pipe 101 is provided with a fixing hole 105b. There is a docking port 105c, which is used in conjunction with the docking layer 105a. The buffer mechanism 204 includes a fixed box 204a, which is fixedly arranged on the rotating block 202. A spring damper 204b is fixedly arranged in the fixed box 204a, and one end of the spring damper 204b is fixedly connected to a cylinder 204c. A buffer pad 204d is fixedly arranged on the output shaft of the cylinder 204c. The buffer pad 204d is tightly fitted with the inner ceramic lining 103. The cylinder 204c is slidably connected to the inner wall of the fixed box 204a. A threaded groove is opened on the outer steel pipe 101, and the threaded groove is connected to the fixing hole 105b with screws.

[0032] During use, first place the docking layer 105a at the docking port 105c, then rotate the steel pipe so that the docking port 105c fits tightly with the inner wall of the docking layer 105a, then use the tightening screw 104b to fix the first fixing ring 104a and the second fixing ring 104c. After the fixing is completed, use the screw to penetrate into the thread groove opened on the outer steel pipe, and screw it to the fixing hole 105b on the docking layer 105a to make the pipeline installation more secure, then install the installation pipe 201 at the other end of the pipeline, and then rotate the fixing block 203 with The movable rotating block 202 rotates, thereby driving the fixed box 204a to enter the pipeline. At this time, the buffer pad 204d fits tightly with the inner wall of the pipeline. When conveying materials, the materials fall onto the buffer pad 204d, which greatly reduces the impact on the pipe wall. Under the action of the spring damper 204b, the materials are buffered. Then, the materials fall into the discharge pipe 106 along the inclined direction of the buffer pad 204d. After the feeding is completed, the cylinder 204c can be opened, and the cylinder 204c pushes the buffer pad 204d to push the material remaining at the front end into the discharge pipe 106.

[0033] 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 has been 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 high pressure-resistant ceramic-lined composite steel pipe, characterized in that: include: The main unit (100) comprises an outer steel pipe (101), a transition layer (102) is fixedly provided on the inner wall of the outer steel pipe (101), an inner ceramic lining (103) is fixedly provided on the inner wall of the transition layer (102), a mounting mechanism (104) is provided on the outer wall of the outer steel pipe (101), locking mechanisms (105) are provided at both ends of the outer steel pipe (101), and a discharge pipe is fixedly provided on the outer steel pipe (101); The working unit (200) comprises a mounting tube (201), one end of which is threadedly provided with a rotating block (202), one side of which is fixedly provided with a fixed block (203), a buffer mechanism (204) is provided inside the mounting tube (201), a mounting ring (205) is fixedly provided on the mounting tube (201), and the mounting tube (201) is fixed to one end of an outer steel tube (101) via the mounting ring (205).

2. The high pressure-resistant ceramic-lined composite steel pipe according to claim 1, characterized in that: The mounting mechanism (104) comprises a first fixing ring (104a), the first fixing ring (104a) being fixed on one side of the outer steel pipe (101), a tightening screw (104b) being threadedly connected to the first fixing ring (104a), a second fixing ring (104c) being fixed on the outer steel pipe (101), and a fixing groove (104d) being provided on the second fixing ring (104c) for use with the tightening screw (104b).

3. The high pressure-resistant ceramic-lined composite steel pipe according to claim 1, characterized in that: The locking mechanism (105) comprises a docking layer (105a), the docking layer (105a) is fixed to one side of the outer steel pipe (101), the docking layer (105a) is made of corundum ceramics, a fixing hole (105b) is provided on the docking layer (105a), and a docking port (105c) is provided at one end of the outer steel pipe (101), and the docking port (105c) and the docking layer (105a) are used in combination.

4. The high pressure-resistant ceramic-lined composite steel pipe according to claim 3, characterized in that: The buffer mechanism (204) comprises a fixed box (204a), the fixed box (204a) is fixedly arranged on the rotating block (202), a spring damper (204b) is fixedly arranged in the fixed box (204a), one end of the spring damper (204b) is fixedly connected to a cylinder (204c), and a buffer pad (204d) is fixedly arranged on the output shaft of the cylinder (204c).

5. The high pressure-resistant ceramic-lined composite steel pipe according to claim 4, characterized in that: The buffer pad (204d) is tightly fitted to the inner ceramic lining (103), and the cylinder (204c) is slidably connected to the inner wall of the fixed box (204a).

6. The high pressure-resistant ceramic-lined composite steel pipe according to claim 3, characterized in that: The outer steel pipe (101) is provided with a thread groove, and the thread groove is connected to the fixing hole (105b) by using screws.

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