CN214921965U

CN214921965U - Welded tee joint

Info

Publication number: CN214921965U
Application number: CN202120491534.4U
Authority: CN
Inventors: 胡萍辉; 孙杰; 李平华
Original assignee: Zhejiang Jiede Pipeline Technology Co ltd
Current assignee: Zhejiang Jiede Pipeline Technology Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-11-30
Anticipated expiration: 2031-03-08

Abstract

The utility model discloses a welding tee bend, including being responsible for and branch pipe, the middle part of being responsible for has been seted up one and has been run through the elliptical aperture of being responsible for the lateral wall, the lower extreme of branch pipe have with the flanging that the elliptical aperture matches, just the flanging with linking department of elliptical aperture makes through the welding be responsible for with branch pipe fixed connection is as an organic whole, be responsible for with be connected with two first gussets and two second gussets between the branch pipe, the plane at two first gussets places and the plane mutually perpendicular at two second gussets places. The utility model discloses manufacturing process is simple, and the fluid gets into the branch pipe transition nature, the resistance is little less, the impact is less.

Description

Welded tee joint

Technical Field

The utility model relates to a pipe fitting technical field, concretely relates to welding tee bend.

Background

In fluid transmission systems, the application of the tee is very wide, and the application is not exceptional in butt welding stainless steel pipeline systems. At present, in an industrial butt welding pipeline system, a tee joint is mainly divided into two types of plate making and pipe making, wherein the plate making is formed by forming and welding a steel plate and is commonly used for producing large-size low-pressure tee joints; the pipe tee is divided into a plug-in welded tee and a drawn tee according to different manufacturing processes, the plug-in welded tee has the advantages of simple process and low cost, but branch pipes of the product are not smooth in transition, the fluid pressure impact is large, and the pipe tee can only be used for low-pressure fluid transmission generally; the drawing tee joint has the advantages of smooth transition of the branch pipes of the tee joint, natural transition of fluid entering the branch pipes, small resistance, small impact and the like, but the branch pipes are seriously thinned in the machining process, and the whole steel pipe needs to be thickened to meet the pressure-bearing requirement, so that the requirement on an equipment die is very high, the cost is high, and the tee joint is not economical when being adopted in some middle-end requirements.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a welded tee joint to solve the above technical problem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a welding tee bend, is including being responsible for and branch pipe, the middle part of being responsible for has seted up one and has run through the elliptical aperture of being responsible for the lateral wall, the lower extreme of branch pipe have with the flanging that the elliptical aperture matches, just the flanging with the linking department of elliptical aperture makes through the welding be responsible for with branch pipe fixed connection is as an organic whole, be responsible for with be connected with two first gussets and two second gussets between the branch pipe, the plane at two first gussets places and the plane mutually perpendicular at two second gussets places.

Further, the outer diameter of the branch pipe is smaller than that of the main pipe, the long diameter direction of the elliptical hole is consistent with the axial extension direction of the main pipe, and the short diameter of the elliptical hole is smaller than that of the main pipe.

Furthermore, the opening of the elliptical hole and the edge of the outward flanging are both provided with oblique grooves.

Furthermore, the planes of the two second rib plates are perpendicular to the central axis of the main pipe, wherein the inner side surfaces of the second rib plates are provided with arc-shaped convex surfaces attached to the inner arc surfaces of the outward flanges and concave arc surfaces attached to the outer peripheral surface of the main pipe, the outer side surfaces of the second rib plates are parallel to the planes of the two first rib plates, and the outer side surfaces of the second rib plates are tangent to the outer peripheral surface of the main pipe.

Furthermore, the first rib plate is triangular, and a supporting protrusion attached to the inner arc surface of the outward flanging is arranged at the right-angle turning position of the first rib plate.

Further, the wall thickness of the main pipe is the same as the wall thickness of the branch pipe.

Furthermore, the main pipe and the branch pipes are made of stainless steel pipes, and the first rib plate and the second rib plate are made of stainless steel plates.

Furthermore, the outer side wall of the main pipe is provided with two mutually crossed ribs, and the central line intersection point of the two ribs is coaxial with the branch pipe.

According to the above technical solution, the utility model has the advantages that: the lower end of the branch pipe is provided with the flanging matched with the elliptical hole of the main pipe, the branch pipe is fixedly connected with the main pipe to form a tee joint by welding, the arrangement of the flanging enables the pipe wall to be excessively smooth, steps with large amplitude cannot occur, the requirement of a fluid pipeline on the smoothness of the inner wall of a pipeline system is guaranteed to the greatest extent, the wall thickness of the branch pipe is reduced in the flanging process, and the thicknesses of all parts of the branch pipe are uniform, so that all parts of the application are uniform; the first rib plate and the second rib plate are arranged to ensure that the connection part of the branch pipe and the main pipe is firm; the main pipe is high in strength by arranging the ribs, and is not easy to deform in the connection and use process.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural view of the main tube of the present invention.

Fig. 3 is a schematic structural diagram of the branch pipe of the present invention.

Fig. 4 is a schematic structural view of the first rib plate of the present invention.

Fig. 5 is a schematic structural view of a second rib plate of the present invention.

List of reference numerals: the support structure comprises a main pipe 1, an elliptical hole 11, a branch pipe 2, a first rib plate 3, a support protrusion 31, a second rib plate 4, an arc protrusion 41, a concave arc surface 42 and ribs 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The application is further explained with reference to fig. 1 to 5, and as shown in fig. 1, 2 and 3, the welded tee joint comprises a main pipe 1 and a branch pipe 2, an elliptical hole 11 penetrating through the side wall of the main pipe 1 is formed in the middle of the main pipe 1, an outward flange matched with the elliptical hole 11 is arranged at the lower end of the branch pipe 2, the outward flange and the joint of the elliptical hole 11 are fully welded at the inner side and the outer side to enable the main pipe 1 and the branch pipe 2 to be fixedly connected into a whole, two first rib plates 3 and two second rib plates 4 are connected between the main pipe 1 and the branch pipe 2, and the plane where the two first rib plates 3 are located is perpendicular to the plane where the two second rib plates 4 are located.

Preferably, the outer diameter of the branch pipe 2 is smaller than that of the main pipe 1, so that the problem that the connection cannot be performed due to the fact that the diameter of the flanging exceeds that of the main pipe 1 is avoided, the long diameter direction of the elliptical hole 11 is consistent with the axial extension direction of the main pipe 1, and the short diameter of the elliptical hole 11 is smaller than that of the main pipe 1, so that the connection position is reliable.

Preferably, the opening part of the elliptical hole 11 and the edge of the flanging are both provided with oblique grooves, the main pipe 1 and the connecting surface of the branch pipe 2 are enlarged, and the oblique groove at the opening part of the elliptical hole 11 can limit the branch pipe 2, so that the positioning is accurate and the processing is convenient.

As shown in fig. 1 and 5, the plane of the two second rib plates 4 is perpendicular to the central axis of the main pipe 1, wherein the inner side surface of the second rib plate 4 has an arc-shaped convex surface 41 attached to the inner arc surface of the outward flange and a concave arc surface 42 attached to the outer circumferential surface of the main pipe 1, the outer side surface of the second rib plate 4 is parallel to the plane of the two first rib plates 3, and the outer side surface of the second rib plate 4 is tangent to the outer circumferential surface of the main pipe 1.

As shown in fig. 4, the first rib plate 3 is triangular, and the right-angle turning part of the first rib plate 3 is provided with a supporting protrusion 31 attached to the inner arc surface of the outward flange, so that the connection strength of the joint of the main pipe 1 and the branch pipe 2 is improved by adopting the structure.

The pipe wall thickness of the main pipe 1 is the same as that of the branch pipe 2, the main pipe 1 is made of round pipes with proper thickness by cutting according to required length, and the branch pipe 2 is made of round pipes with thickness larger than the required wall thickness of the branch pipe 2 by about 10% after cutting and edge curling, so that the manufacturing process is simple, the pipe walls are excessively smooth, steps with large amplitude can not appear, and the requirement of the fluid pipeline on the smoothness of the inner walls of the pipeline system is guaranteed to the maximum extent.

Preferably, the outer side wall of the main pipe 1 is provided with two mutually crossed ribs 5, and the center line intersection point of the two ribs 5 is coaxial with the branch pipe 2, so that the main pipe 1 has high strength and is not easy to deform in the connection and use process.

Preferably, the main pipe 1 and the branch pipe 2 are made of stainless steel pipes, and the first rib plates 3, the second rib plates 4 and the ribs 5 are made of stainless steel plates.

The utility model discloses a tee bend, including the main pipe 1, branch pipe 2, the tee bend is formed to the welding, and the main pipe 1 with usable polishing process polishes the welding seam after the tee bend is formed in the welding, and this application adopts above-mentioned structure to lightest weight satisfies the thickness requirement of standard, reaches standard pressure-bearing requirement, and pressure is stable in the use, and the velocity of flow is even, and the pipeline does not have the vibration, long service life.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a welding tee bend, its characterized in that, is including being responsible for (1) and branch pipe (2), be responsible for the middle part of (1) and seted up one and run through be responsible for elliptical aperture (11) of (1) lateral wall, the lower extreme of branch pipe (2) have with the flanging that elliptical aperture (11) match, just the flanging with the linking department of elliptical aperture (11) makes through the welding be responsible for (1) with branch pipe (2) fixed connection is as an organic whole, be responsible for (1) with be connected with two first gusset (3) and two second gusset (4) between branch pipe (2), the plane at two first gusset (3) places and the plane mutually perpendicular at two second gusset (4) places.

2. The welded tee according to claim 1, characterized in that the branch pipe (2) has an outer diameter smaller than the main pipe (1), the oblong hole (11) has a longer diameter in the direction of extension of the axis of the main pipe (1), and the oblong hole (11) has a shorter diameter smaller than the outer diameter of the main pipe (1).

3. The welded tee according to claim 1, characterized in that the opening of said oval hole (11) and the edge of said flanging are provided with beveled edges.

4. The welded tee joint according to claim 2, wherein the plane of the two second rib plates (4) is perpendicular to the central axis of the main pipe (1), wherein the inner side surface of the second rib plates (4) is provided with arc-shaped protrusions (41) attached to the inner arc surfaces of the outward flanged edges and concave arc surfaces (42) attached to the outer peripheral surface of the main pipe (1), the outer side surfaces of the second rib plates (4) are parallel to the plane of the two first rib plates (3), and the outer side surfaces of the second rib plates (4) are tangent to the outer peripheral surface of the main pipe (1).

5. The welded tee according to claim 4, characterized in that the first web (3) is triangular and that the right angle turn of the first web (3) has a support protrusion (31) that fits the intrados of the flanging.

6. Welded tee according to claim 1, characterized in that the wall thickness of the main pipe (1) is the same as the wall thickness of the branch pipes (2).

7. The welded tee according to claim 1, wherein the main pipe (1) and the branch pipe (2) are both made of stainless steel pipes, and the first rib plates (3) and the second rib plates (4) are both made of stainless steel plates.

8. The welded tee according to claim 1, characterized in that two mutually intersecting ribs (5) are provided on the outer side wall of the main pipe (1), and the centerline intersection of the two ribs (5) is coaxial with the branch pipe (2).