A raised composite pipe fitting joint

Abstract

The utility model provides a kind of convex composite pipe fitting joint, including outer elbow, three section inner lining stainless steel pipes are equipped in the outer elbow, the three section inner lining stainless steel pipes are two straight pipes and a elbow respectively, the elbow is arranged at bend, and the two straight pipes are respectively arranged at the both ends of outer elbow.The utility model provides a kind of convex composite pipe fitting joint, by the inner lining pipe being originally integrated into three sections in bend, straight pipe is placed into from the both ends of outer elbow first when installing, the fixation to three section inner lining pipe is completed, it is convenient to install, and production efficiency is increased.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a raised composite pipe fitting joint. Background Technology

[0002] Composite steel pipe is a new type of composite pipe material. The product uses seamless steel pipe or welded steel pipe as the base pipe, while the stainless steel-lined composite steel pipe uses carbon steel pipe as the base pipe. It is a bimetallic pipe material formed by combining the stainless steel inner liner with the base pipe through composite processes such as diameter reduction, cold expansion, combustion, or brazing. With the rapid development of society, more and more infrastructure is being built, and large-scale infrastructure projects require composite steel pipes for raw material transportation, such as the transport of tap water, natural gas, and oil. However, it is difficult to install and fix the stainless steel inner liner at the bend of the outer pipe, and it is also difficult to insert the integrated inner liner with bends into the outer pipe, making installation very difficult and resulting in low production efficiency.

[0003] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a raised composite pipe fitting joint to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a raised composite pipe fitting joint, including an outer bend, wherein the outer bend is provided with three sections of inner stainless steel pipe, the three sections of inner stainless steel pipe being two straight pipes and one bend, the bend being located at the bend, and the two straight pipes being located at both ends of the outer bend.

[0008] Preferably, sealant is applied between the two straight pipes and one bend and the outer bend.

[0009] Preferably, sealing rings are provided at both ends of the outer bend.

[0010] Preferably, the two ends of the straight pipe and the bend abut each other, and the abutment point is in the shape of a broken line.

[0011] (III) Beneficial Effects

[0012] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: The present utility model is a raised composite pipe fitting joint, which divides the originally integral inner lining pipe inside the elbow into three sections. During installation, the elbow is first inserted, and then straight pipes are inserted from both ends of the outer elbow to complete the fixation of the three sections of inner lining pipe. The installation is convenient and increases production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention;

[0014] In the diagram: 1. Outer bend, 2. Straight pipe, 3. Bend, 4. Sealing ring. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0016] This utility model embodiment provides a raised composite pipe fitting connector, such as Figure 1 As shown, the device includes an outer bend 1, which contains three sections of stainless steel lined pipe. The three sections are two straight pipes 2 and one bend 3. The bend 3 is located at the bend, and the two straight pipes 2 are located at both ends of the outer bend 1. Sealing rings 4 are provided at both ends of the outer bend 1. The ends of the straight pipes 2 and the bend 3 abut against each other, forming a zigzag shape at the abutment point.

[0017] It is important to note that sealant is applied between the two straight pipes 2 and the one bend 3 and the outer bend 1. When installing the stainless steel lining pipe (i.e., the two straight pipes 2 and the one bend 3), the sealant must first be applied to the inner wall of the outer bend 1 and the outer walls of the straight pipes 2 and 3. Then, the outer bend 1 is inserted into the outer bend 1, and the straight pipes 2 are inserted from both ends of the outer bend 1, so that the straight pipes 2 and the ends of the bend 3 abut against each other to complete the fixation. Since the bend 3 no longer has a straight section, the short bend 3 can be easily inserted into the outer bend 1, greatly increasing the ease of installation.

[0018] This utility model discloses a raised composite pipe fitting connector, which divides the originally integral inner lining pipe inside the elbow into three sections. During installation, the elbow is first inserted, and then straight pipes are inserted from both ends of the outer elbow to fix the three sections of the inner lining pipe. This makes installation convenient and increases production efficiency.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raised composite pipe fitting joint, characterized in that: It includes an outer bend (1), which has three sections of inner stainless steel pipe. The three sections of inner stainless steel pipe are two straight pipes (2) and one bend (3). The bend (3) is located at the bend, and the two straight pipes (2) are located at both ends of the outer bend (1).

2. The raised composite pipe fitting joint according to claim 1, characterized in that: The two straight pipes (2) and one bent pipe (3) are filled with sealant between them and the outer bent pipe (1).

3. The raised composite pipe fitting joint according to claim 1, characterized in that: The outer bend (1) is provided with sealing rings (4) at both ends.

4. A raised composite pipe fitting joint according to claim 2, characterized in that: The straight pipe (2) and the bent pipe (3) abut against each other at both ends, and the abutting point is in the shape of a broken line.

Images