Three-way structure for pipeline
By adopting a non-welded open-hole tee structure on low-pressure stainless steel pipelines, the problem of poor adaptability caused by different pipe wall thickness during welding and installation is solved, and efficient opening-hole connection of the pipe to the pipe is achieved, improving the stability and adaptability of the operation.
Patent Information
- Application Number
- CN202421703534.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-18
AI Technical Summary
When existing tee pipe fittings are welded and installed on low-pressure stainless steel pipes, due to the different thickness of the pipe wall and poor adaptability, it is difficult to effectively carry out hole-connected branch pipe operations.
The non-welded open-hole tee structure is adopted, including upper guard plate, lower guard plate, branch pipe, connecting plate, installation hole, groove, pillar, annular gasket and bolt nut. Through the installation and installation of these components, the opening-hole connection of low-pressure stainless steel pipes is realized.
This technical solution is suitable for opening-hole connection pipe operations of low-pressure stainless steel pipelines, reducing the deformation of the connecting plate, improving the adaptability of the three-way structure and the pipeline, and ensuring the stability and reliability of opening-hole operations.
Smart Images

Figure CN222760507U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of three-way pipelines, and in particular relates to a three-way structure used for pipelines. Background Art
[0002] At present, when drilling holes in pressurized pipelines, tee pipe fittings are usually welded to low-pressure stainless steel pipelines first, and then connected to the tee pipe fittings using a punching machine to perform drilling. However, the wall thickness of low-pressure stainless steel pipelines is different, which is not conducive to the welding and installation of conventional tee pipe fittings. Therefore, the existing tee pipe fittings are poorly compatible with low-pressure stainless steel pipelines. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a tee structure for pipelines, which utilizes a non-welded perforated tee to perform branch pipe connection operations and is suitable for perforating and connecting branches of low-pressure stainless steel pipelines.
[0004] The utility model is realized by the following technical solutions:
[0005] A three-way structure for a pipeline comprises an upper guard plate and a lower guard plate arranged in pair with the upper guard plate, both sides of the upper guard plate and both sides of the lower guard plate are integrally provided with connecting plates, both ends of the upper guard plate and both ends of the lower guard plate are provided with grooves, a support is provided between two upper and lower connecting plates arranged opposite to each other, annular gaskets are provided at the upper and lower ends of the support, and bolts and nuts are installed between the upper and lower connecting plates arranged opposite to each other.
[0006] Preferably, a branch pipe is welded and fixed at the upper opening of the upper guard plate.
[0007] Preferably, each of the connecting plates is provided with a mounting hole.
[0008] Compared with the prior art, the beneficial effects of the utility model are:
[0009] In the utility model, the arrangement of the upper guard plate, the lower guard plate, the branch pipe, the connecting plate and the mounting hole is suitable for the operation of opening holes and connecting branch pipes of low-pressure stainless steel pipelines.
[0010] In the utility model, the arrangement of the pillars, annular gaskets, bolts and nuts is conducive to supporting the upper guard plate and the lower guard plate, and reducing the deformation of the connecting plate of the upper guard plate and the connecting plate of the lower guard plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 It is a side view structural schematic diagram of the utility model;
[0013] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.
[0014] In the figure:
[0015] 1. Upper guard plate; 2. Lower guard plate; 3. Branch pipe; 4. Connecting plate; 5. Mounting hole; 6. Groove; 7. Support; 8. Ring gasket; 9. Bolts and nuts. DETAILED DESCRIPTION
[0016] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, a three-way structure for a pipeline comprises an upper guard plate 1 and a lower guard plate 2 arranged in pair with the upper guard plate 1, a branch pipe 3 is welded and fixed at the upper opening of the upper guard plate 1, connecting plates 4 are integrally arranged on both sides of the upper guard plate 1 and both sides of the lower guard plate 2, each of the connecting plates 4 is provided with a mounting hole 5, grooves 6 are provided inside both ends of the upper guard plate 1 and both ends of the lower guard plate 2, the two upper grooves 6 and the two lower grooves 6 are respectively arranged opposite to each other, a support 7 is arranged between the upper and lower connecting plates 4 arranged opposite to each other, each of the support 7 is arranged between the upper and lower mounting holes 5 arranged opposite to each other, annular gaskets 8 are arranged at the upper and lower ends of the support 7, the support 7 and the annular gasket 8 support the connecting plates 4 of the upper guard plate 1 and the lower guard plate 2 to reduce the deformation of the connecting plates 4.
[0017] In this embodiment, specifically, a through hole is opened inside the pillar 7.
[0018] In this embodiment, specifically, bolts and nuts 9 are installed between the upper and lower connecting plates 4 that are arranged opposite to each other.
[0019] How it works
[0020] In the utility model, an upper guard plate 1 and a lower guard plate 2 are arranged on the upper and lower sides of the outer surface of the cleaned pipe to be drilled, and a rubber seal is installed in the groove 6. The upper and lower connecting plates 4 are fixed by bolts and nuts 9, and a valve is installed at the upper end of the branch pipe 3. After the overall pressure test is qualified, the pressure drilling operation is carried out. After the drilling is completed, the relevant pipelines are connected at the valve, which solves the problem of thin pipe wall and the need to drill holes to connect branch pipes.
[0021] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.
Claims
1. A three-way structure for a pipeline, characterized in that: The three-way structure for a pipeline comprises an upper guard plate (1) and a lower guard plate (2) arranged in pair with the upper guard plate (1); both sides of the upper guard plate (1) and both sides of the lower guard plate (2) are integrally provided with connecting plates (4); both ends of the upper guard plate (1) and both ends of the lower guard plate (2) are provided with grooves (6); a support (7) is provided between two upper and lower connecting plates (4) arranged opposite to each other; annular gaskets (8) are provided at both upper and lower ends of the support (7); and bolts and nuts (9) are installed between the two upper and lower connecting plates (4) arranged opposite to each other.
2. The three-way structure for pipelines according to claim 1, characterized in that: A branch pipe (3) is welded and fixed to the upper opening of the upper guard plate (1).
3. The three-way structure for pipelines according to claim 1, characterized in that: Each of the connecting plates (4) is provided with a mounting hole (5).
4. The three-way structure for pipelines according to claim 1, characterized in that: The two upper grooves (6) and the two lower grooves (6) are arranged opposite to each other.
5. The three-way structure for pipelines according to claim 1, characterized in that: Each of the pillars (7) is arranged between two upper and lower mounting holes (5) that are arranged opposite to each other.
6. The three-way structure for pipelines according to claim 1, characterized in that: A through hole is provided inside the support column (7).