Fast-assembly type lining stainless steel composite pipe

Abstract

The utility model provides a fast-assembly type lining stainless steel composite pipe, which relates to the technical field of stainless steel composite pipes and comprises a stainless steel outer pipe, and a first connecting component is fixedly connected to the position, close to the front surface, of the outer surface of the stainless steel outer pipe. In the use process, after the axes of the two lining stainless steel composite pipes are aligned, one pipe body is screwed to drive the second external connection block fixedly connected with the surface of the pipe body to rotate towards the inner surface of the first external connection block fixedly connected with the surface of the other pipe body in a threaded mode till the butt joint end faces of the two lining stainless steel composite pipes are tightly attached; and the sealing rings arranged in the mounting grooves are deformed and filled in the connecting gaps, so that the sealing effect is achieved, the mounting speed of the stainless steel lined composite pipe is greatly increased, and the problem that in the background technology, sectional pipelines are often mounted by adopting a bolt structure or an on-site welding mode, and the mounting efficiency is high is solved. The problems that a welding and bolt fixing mode needs long installation time, and installation efficiency is low are solved.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel composite pipe technology, and in particular to a quick-installation stainless steel lined composite pipe. Background Technology

[0002] Stainless steel composite pipes are widely used in a variety of applications. They are extensively used in chemical, oil and gas, food and pharmaceutical, water treatment, and energy industries. Stainless steel composite pipes offer many advantages. First, they possess strong corrosion resistance; the inner wall is made of corrosion-resistant stainless steel, preventing the medium from corroding the pipe and extending its service life. Second, the outer wall material provides the necessary mechanical strength and pressure resistance, enabling them to withstand high-pressure environments. Furthermore, stainless steel composite pipes exhibit good thermal conductivity and high-temperature stability, making them suitable for heat transfer applications.

[0003] In the existing technology, stainless steel-lined composite pipes are too long and inconvenient to transport because they are a one-piece structure. When using segmented pipes, bolt structures or on-site welding are often required for installation. Welding and bolt fixing methods require a long installation time and are slow to install. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, segmented pipes often need to be installed by bolt structure or on-site welding, and the installation time and efficiency of welding and bolt fixing are relatively long. Therefore, a quick-installation stainless steel-lined composite pipe is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-installation stainless steel-lined composite pipe, comprising: a stainless steel outer pipe, wherein a first connecting component is fixedly connected to the outer surface of the stainless steel outer pipe near the front surface, and a second connecting component is fixedly connected to the outer surface of the stainless steel outer pipe near the rear surface; the first connecting component includes a first external block, which is fixedly connected to the outer surface of the stainless steel outer pipe, and the inner surface of the first external block is provided with a first thread; the second connecting component includes a second external block, which is fixedly connected to the outer surface of the stainless steel outer pipe, and the outer surface of the second external block is provided with a second thread.

[0006] Preferably, an extension ring block is fixedly connected to the rear surface of the first outer block, and the inner surface of the extension ring block is fixedly connected to the outer surface of the stainless steel outer tube.

[0007] Preferably, a stop block is fixedly connected to the outer surface of the second outer block, and a mounting groove is provided on the front surface of the stop block, and a sealing ring is provided on the inner surface of the mounting groove.

[0008] Preferably, the inner surface of the sealing ring is in contact with the outer surface of the second outer block, and the outer diameter of the sealing ring is larger than the outer diameter of the first outer block.

[0009] Preferably, the inner diameter of the first outer block is equal to the outer diameter of the second outer block, and the first thread and the second thread are matched.

[0010] Preferably, the inner surface of the stainless steel outer tube is provided with an inner liner tube, and the two ends of the inner liner tube are flush with the two ends of the stainless steel outer tube.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, during use, after aligning the axes of two stainless steel lined composite pipes, one pipe is screwed to drive the second outer connecting block fixed to its surface to rotate threadedly onto the inner surface of the first outer connecting block fixed to the surface of the other pipe until the mating end faces of the two stainless steel lined composite pipes are tightly fitted. The sealing ring set in the installation groove deforms and fills the connection gap, thus achieving a sealing effect. This greatly improves the installation speed of the stainless steel lined composite pipe and solves the problem in the background technology that segmented pipes often need to be installed using bolt structures or on-site welding, and that welding and bolt fixing methods require a long installation time and are slow in installation efficiency.

[0013] 2. In this utility model, during use, the extension ring block is fixedly connected to the rear surface of the first outer block, which increases the strength and prevents the thin-walled first outer block from easily falling off the outer wall of the stainless steel outer tube, thus making it highly practical. Attached Figure Description

[0014] Figure 1 A perspective view of a quick-installation stainless steel-lined composite pipe is presented for this utility model.

[0015] Figure 2 A rear view of a quick-installation stainless steel-lined composite pipe is provided for this utility model.

[0016] Figure 3 This utility model provides a schematic diagram of the first connecting component structure of a quick-installation stainless steel-lined composite pipe.

[0017] Figure 4 This utility model presents a schematic diagram of the second connecting component structure of a quick-installation stainless steel-lined composite pipe.

[0018] Legend: 1. Stainless steel outer tube; 2. Inner liner tube; 3. First connecting assembly; 301. First outer block; 302. Extension ring block; 303. First thread; 4. Second connecting assembly; 401. Second outer block; 402. Second thread; 403. Stop block; 404. Mounting groove; 405. Sealing ring. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a quick-installation stainless steel-lined composite pipe, comprising: a stainless steel outer pipe 1, a first connecting assembly 3 fixedly connected to the outer surface of the stainless steel outer pipe 1 near the front surface, and a second connecting assembly 4 fixedly connected to the outer surface of the stainless steel outer pipe 1 near the rear surface; the first connecting assembly 3 includes a first external block 301 fixedly connected to the outer surface of the stainless steel outer pipe 1, and the inner surface of the first external block 301 is provided with a first thread 303; the second connecting assembly 4 includes a second external block 401 fixedly connected to the outer surface of the stainless steel outer pipe 1. The outer surface of the second outer block 401 is provided with a second thread 402. A stop block 403 is fixedly connected to the outer surface of the second outer block 401. The front surface of the stop block 403 is provided with an installation groove 404. A sealing ring 405 is provided on the inner surface of the installation groove 404. The inner surface of the sealing ring 405 fits against the outer surface of the second outer block 401. The outer diameter of the sealing ring 405 is larger than the outer diameter of the first outer block 301. The inner diameter of the first outer block 301 is equal to the outer diameter of the second outer block 401. The first thread 303 and the second thread 402 are matched. An inner liner 2 is provided on the inner surface of the stainless steel outer tube 1. The two ends of the inner liner 2 are flush with the two ends of the stainless steel outer tube 1.

[0022] The overall effect of Embodiment 1 is that, during the butt joint installation of the stainless steel-lined composite pipes, a first external connecting block 301 is set near the front end of the outer surface of the stainless steel outer pipe 1, and a second external connecting block 401 is set near the rear end. Both can be integrally formed or welded to the outer surface of the stainless steel outer pipe 1. A first thread 303 is formed on the inner surface of the first external connecting block 301, and a second thread 402 is formed on the outer surface of the second external connecting block 401. This facilitates the connection of the two stainless steel-lined composite pipes by turning one of the pipes, thereby driving the second thread 401 fixedly connected to its surface. The outer block 401 is threaded onto the inner surface of the first outer block 301, which is fixed to the surface of another pipe body, until the mating end faces of the two stainless steel-lined composite pipes are in contact with each other. The end face of the second outer block 401 abuts against the compression block 403, causing the sealing ring 405 set inside the mounting groove 404 to deform and fill the connection gap, thus achieving a sealing effect. This greatly improves the installation speed of the stainless steel-lined composite pipe and solves the problem in the background technology that segmented pipes often need to be installed by bolt structure or on-site welding, and the welding and bolt fixing methods require a long installation time and have slow installation efficiency.

[0023] Example 2: As Figures 1-4 As shown, an extension ring block 302 is fixedly connected to the rear surface of the first external block 301, and the inner surface of the extension ring block 302 is fixedly connected to the outer surface of the stainless steel outer tube 1.

[0024] The effect achieved by the entire embodiment 2 is that, in use, by fixing the extension ring block 302 to the rear surface of the first outer block 301, the strength is increased, and the thin-walled first outer block 301 is prevented from easily falling off the outer wall of the stainless steel outer tube 1, which is highly practical.

[0025] Working principle: During the butt joint installation of the stainless steel-lined composite pipes, a first external connecting block 301 is installed near the front end of the outer surface of the stainless steel outer pipe 1, and a second external connecting block 401 is installed near the rear end. Both can be integrally formed or welded to the outer surface of the stainless steel outer pipe 1. A first thread 303 is formed on the inner surface of the first external connecting block 301, and a second thread 402 is formed on the outer surface of the second external connecting block 401. This allows personnel to easily fix the connection by turning one of the pipes when butt jointing the two stainless steel-lined composite pipes. The second outer block 401 is threadedly connected to the inner surface of the first outer block 301, which is fixed to the surface of another pipe body, until the mating end faces of the two inner stainless steel composite pipes are in contact with each other. The end face of the second outer block 401 abuts against the compression block 403, causing the sealing ring 405 set inside the mounting groove 404 to deform and fill the connection gap, thus playing a sealing role. By fixing the extension ring block 302 to the rear surface of the first outer block 301, the strength is increased, preventing the thin-walled first outer block 301 from easily falling off the outer wall of the stainless steel outer pipe 1, which is highly practical.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A quick-installation stainless steel-lined composite pipe, characterized in that, include: A stainless steel outer tube (1) is fixedly connected to a first connecting component (3) at a position near the front surface of the outer surface of the stainless steel outer tube (1), and a second connecting component (4) is fixedly connected to a position near the rear surface of the outer surface of the stainless steel outer tube (1). The first connecting component (3) includes a first external block (301), which is fixedly connected to the outer surface of the stainless steel outer tube (1), and the inner surface of the first external block (301) is provided with a first thread (303). The second connecting component (4) includes a second external block (401), which is fixedly connected to the outer surface of the stainless steel outer tube (1), and the outer surface of the second external block (401) is provided with a second thread (402). An extension ring block (302) is fixedly connected to the rear surface of the first external block (301). The inner surface of the extension ring block (302) is fixedly connected to the outer surface of the stainless steel outer tube (1). A stop block (403) is fixedly connected to the outer surface of the second external block (401). An installation groove (404) is provided on the front surface of the stop block (403). A sealing ring (405) is provided on the inner surface of the installation groove (404). The inner surface of the sealing ring (405) is in contact with the outer surface of the second external block (401). The outer diameter of the sealing ring (405) is larger than the outer diameter of the first external block (301). The inner diameter of the first external block (301) is equal to the outer diameter of the second external block (401). The first thread (303) and the second thread (402) are matched. An inner liner (2) is provided on the inner surface of the stainless steel outer tube (1). The two ends of the inner liner (2) are flush with the two ends of the stainless steel outer tube (1).

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