Petroleum pipeline threaded tee joint

Abstract

The utility model discloses a petroleum pipeline threaded tee joint, and relates to the technical field of petroleum pipeline tee joints, in particular to a petroleum pipeline threaded tee joint which comprises a main tee joint pipe, an auxiliary tee joint pipe, a connecting ring piece, a sealing assembly, a reinforcing rib, an internal connection threaded groove, a leakage storage cavity and a leakage detection hole. Connecting ring pieces are arranged between the main three-way pipe and the auxiliary three-way pipe, leakage detection holes are formed in the sides, away from each other, of the connecting ring pieces, a leakage storage cavity is formed between the main three-way pipe and the auxiliary three-way pipe, and sealing assemblies are arranged on the sides, away from each other, of the connecting ring pieces. Internal thread grooves are formed in the two sides and the front end of the interior of the main three-way pipe, and reinforcing ribs are arranged on the two sides of the exterior of the auxiliary three-way pipe. Compared with the prior art, the three-way valve has the advantage that the three-way valve can be conveniently and visually detected when tiny leakage occurs.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum pipeline tees, in particular to a petroleum pipeline threaded tee. Background Art

[0002] Petrochemical tee pipe fittings are a type of pipe fittings used to connect three pipes. They are commonly used in the petroleum, chemical, natural gas and other industries. The design of the tee pipe fittings allows it to distribute fluid from one pipe to two or more pipes, and to collect fluids from two or more pipes into one pipe, making it easier to achieve direction changes and flow distribution in the piping system.

[0003] A three-way pipe fitting for petrochemical industry described in the publication number CN220037813U includes a straight-through pipe and a mounting sleeve, the outer top of the straight-through pipe is fixedly connected with a mounting block, the top of the mounting block is provided with a side-through pipe, the outer side of the side-through pipe is provided with a threaded groove, the outer side of the side-through pipe is fixedly connected with a flange, the left and right sides of the bottom end of the side-through pipe are fixedly connected with a clamping block, the inside of the clamping block is provided with a second clamping groove, the front and rear sides of the inside of the mounting block are provided with a second mounting groove, and the inside of the second mounting groove is slidably connected with a pull rod. In the utility model, the pipes can be disassembled, which is convenient for maintenance workers to maintain the pipes separately, reduces the difficulty of maintenance, improves the maintenance efficiency of the staff, and makes the connection between the three-way pipe fitting and the pipes to be connected more convenient and better sealed, thereby improving the practicality of connecting the pipes to each other.

[0004] Although the above three links solve certain problems, they still have the following disadvantages:

[0005] The tee pipe is a single-layer design. If there is a small leak in the tee, it is necessary to conduct a detailed inspection of a certain section of the pipeline before pre-embedding. In this case, it takes a lot of time and the leak detection is more troublesome. Utility Model Content

[0006] The utility model aims to provide a petroleum pipeline threaded tee.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A petroleum pipeline threaded tee, comprising:

[0009] A main tee pipe, wherein the front end and the front side of the main tee pipe are provided with internal thread grooves;

[0010] A secondary tee, the secondary tee is arranged outside the main tee, and a leakage storage cavity is formed between the outside of the main tee and the inside of the secondary tee;

[0011] A connecting ring piece, which is respectively arranged on both sides and the front end of the auxiliary tee pipe, the main tee pipe and the auxiliary tee pipe are connected by the connecting ring piece, the main tee pipe and the auxiliary tee pipe are fixedly connected to the connecting ring piece, and the outer edge of the connecting ring piece is provided with a plurality of evenly distributed leak detection holes used in conjunction with the leakage storage cavity;

[0012] A sealing component, wherein the sealing component is arranged outside the connecting ring piece;

[0013] The reinforcing ribs are respectively arranged at the bending positions on both sides of the exterior of the auxiliary tee pipe, and the reinforcing ribs are fixedly connected to the exterior of the auxiliary tee pipe.

[0014] Furthermore, the main tee pipe and the auxiliary tee pipe are both made of stainless steel.

[0015] Furthermore, the sealing assembly comprises:

[0016] Sealing rings, the sealing rings are respectively fixedly connected to the sides of the connecting ring pieces that are away from each other;

[0017] The sealing connection ring is fixedly connected to the two ends and the front side of the auxiliary tee pipe.

[0018] Furthermore, the sealing ring is made of rubber, the sealing connection ring is made of stainless steel, and a plurality of evenly distributed connection holes are provided on an outer edge of one side of the sealing connection ring.

[0019] The utility model provides a petroleum pipeline threaded tee, which has the following beneficial effects:

[0020] A double-layer design is achieved through two tee pipes with one large and one small aperture. The inner tee is used for transportation, and the outer tee is used for leak storage. If a leak occurs in the tee, the leak can be directly observed by observing the storage cavity between the two tees, which greatly reduces the time required for this situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 The utility model is a three-dimensional oil pipeline threaded tee Figure 1 .

[0023] Figure 2 The utility model is a three-dimensional oil pipeline threaded tee Figure 2 .

[0024] Figure 3 The utility model is a partial structure of a petroleum pipeline threaded tee Figure 1 .

[0025] Figure 4 The utility model is a partial structure of a petroleum pipeline threaded tee Figure 2 .

[0026] Markings in the figure: 1. main tee; 2. auxiliary tee; 3. connecting ring; 4. sealing assembly; 401. sealing ring; 402. sealing connecting ring; 5. reinforcing rib; 6. internal thread groove; 7. leakage storage chamber; 8. leak detection hole; 9. connecting hole. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] like Figures 1 to 4 As shown, this embodiment provides a petroleum pipeline threaded tee, including a main tee pipe 1, a secondary tee pipe 2, a connecting ring piece 3, a sealing assembly 4, a reinforcing rib 5, an internal thread groove 6, a leakage storage cavity 7 and a leak detection hole 8 opened around the connecting ring piece 3.

[0031] Among them, two tees are used, one inside and one outside, and are sleeved together. The inner tee is used as the main tee 1, and the outer tee is used as the auxiliary tee 2. With the design of inner and outer tubes, a cavity that can store oil leaked from the inside of the main tee 1 is formed between the inner main tee 1 and the outer auxiliary tee 2. When detecting tee leakage, it is only necessary to observe whether there is oil inside the leakage storage cavity 7.

[0032] In order to connect the main tee 1 and the auxiliary tee 2 to ensure stability, the two tees are connected together at the three ends of the main tee 1 and the auxiliary tee 2 through three connecting ring pieces 3, and the connecting ring pieces 3 and the two tees are fixedly connected together. A leak detection hole 8 used in conjunction with the leakage storage cavity 7 is provided on the outer side edge of each connecting ring piece 3 to facilitate observation of the interior of the leakage storage cavity 7.

[0033] Internal threaded grooves 6 are provided at the three internal ends of the main tee pipe 1 to facilitate the installation of the tee pipe, and sealing components 4 are provided at the three connecting heads of the tee, which are fixedly connected to the sides of the connecting ring piece 3 that are away from each other on the outside through a sealing ring 401 to ensure the sealing of the connection. A sealing connecting ring 402 is fixedly connected to the two external sides and the front end of the auxiliary tee pipe 2 to facilitate the reinforcement of the tee connection. However, the connecting piece welded on the pipe for the auxiliary connection of the sealing connecting ring 402 needs to be opened at the position corresponding to the leak detection hole 8 to prevent the leak detection hole 8 from being blocked.

[0034] Embodiment 2:

[0035] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0036] In order to increase the stability of the auxiliary tee 2, reinforcing ribs 5 are provided on both sides of the exterior of the auxiliary tee 2. The reinforcing ribs 5 are welded at the bend of the auxiliary tee 2 to ensure the overall stability of the tee.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A petroleum pipeline threaded tee, characterized by: include: A main three-way pipe (1), wherein the front end and the front side of the main three-way pipe (1) are both provided with an internal thread groove (6); A secondary tee (2), the secondary tee (2) being arranged outside the main tee (1), and a leakage storage chamber (7) being formed between the outside of the main tee (1) and the inside of the secondary tee (2); A connecting ring piece (3), the connecting ring piece (3) is respectively arranged on both sides and the front end of the auxiliary tee pipe (2), the main tee pipe (1) and the auxiliary tee pipe (2) are connected through the connecting ring piece (3), the main tee pipe (1) and the auxiliary tee pipe (2) are both fixedly connected to the connecting ring piece (3), and the outer edge of the connecting ring piece (3) is provided with a plurality of evenly distributed leak detection holes (8) used in conjunction with the leakage storage cavity (7); A sealing component (4), wherein the sealing component (4) is arranged outside the connecting ring piece (3); The reinforcing ribs (5) are respectively arranged at the bending positions on both sides of the exterior of the auxiliary three-way pipe (2), and the reinforcing ribs (5) are fixedly connected to the exterior of the auxiliary three-way pipe (2).

2. The oil pipeline threaded tee according to claim 1, characterized in that: The main three-way pipe (1) and the auxiliary three-way pipe (2) are both made of stainless steel.

3. The oil pipeline threaded tee according to claim 1, characterized in that: The sealing assembly (4) comprises: Sealing rings (401), the sealing rings (401) are respectively fixedly connected to the sides of the connecting ring pieces (3) that are away from each other; A sealing connection ring (402) is fixedly connected to the two outer ends and the front side of the auxiliary three-way pipe (2).

4. The oil pipeline threaded tee according to claim 3, characterized in that: The sealing ring (401) is made of rubber, the sealing connection ring (402) is made of stainless steel, and a plurality of evenly distributed connection holes (9) are provided on an outer edge of one side of the sealing connection ring (402).

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