Pressure pipeline with pressure tapping branch line tee joint

Abstract

The utility model discloses a kind of pressure pipeline tapping branch line tee with pressure, belong to pipeline connection technical field, including bypass tee, connecting pipe and the aperture cutter built-in in connecting pipe, the strong magnetic block and adsorbable saddle plate are equipped in aperture cutter, the outer wall of connecting pipe is equipped with hole, aperture cutter is equipped with corresponding limit hole, further include the pin lock for inserting hole and limit hole, the wire plug for plugging hole, and the pipe cap welded in the top of connecting pipe.The utility model is built-in by aperture cutter, utilizes strong magnetic block adsorption waste, and is permanently locked and sealed by pin lock, wire plug and pipe cap, solve the problem that the prior art is complex, leakage risk is high and waste is easy to drop.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and in particular to a tee for connecting a branch line to a pressurized pipeline with a pressurized opening. Background Technology

[0002] In pipeline transportation systems for oil, chemicals, gas, and water supply, it is often necessary to add new branch lines to existing operating pressure pipelines without interrupting the main pipeline. Currently, the conventional technology for achieving this is live tapping. This operation typically requires large and specialized live tapping machines. These traditional live tapping machines are often complex in structure and bulky, requiring tedious installation and fixation on-site. For example, it may be necessary to weld flanged short pipes to the pipeline first, then install gate valves, and finally connect the tapping machine to drill holes. The entire operation process not only demands extremely high professional skills from the operators, but also requires cleaning the inside of the pipeline after tapping. Under pressure, the process of removing the drilling tool along with the cut pipe wall scrap from the gate valve is one of the riskiest parts of the entire operation. It is prone to media leakage and safety accidents. In addition, if the operation is not handled properly during the recycling process, or if the drilling machine lacks a reliable scrap grabbing mechanism, the cut saddle block can easily fall off and into the main pipeline, causing blockage and damage to downstream valves, instruments or equipment, resulting in serious safety hazards. Traditional connection methods mostly rely on flanges and gaskets for final sealing. After long-term operation, the seals are prone to aging and failure, posing a risk of long-term leakage and high maintenance costs.

[0003] Therefore, this utility model proposes a tee for connecting branch lines to a pressurized pipeline under pressure to overcome the shortcomings of the prior art. Utility Model Content

[0004] In view of the problems existing in the construction of a pressure pipeline tee with a pressurized opening for branch line connection, such as complex operation procedures, reliance on large-scale specialized equipment, high risk of leakage, and easy for cutting waste to fall into the pipeline causing blockage or safety hazards, this utility model aims to provide a pressure pipeline tee with a modified structure that can effectively solve the above problems.

[0005] This utility model provides a pressure pipeline with a pressurized tapped branch tee, including: a main pipe, a bypass tee, a bypass line and a connecting pipe; as well as a tapping tool, a pin lock, a plug, a center drill, a strong magnetic block, a saddle plate and a pipe cap.

[0006] The inner wall of the hole-opening tool has a limiting hole corresponding to the position of the hole. A center drill is installed inside the hole-opening tool near the lower end. A strong magnetic block is fixedly connected to the inner wall of the hole-opening tool. The hole-opening tool also includes a sliding saddle plate.

[0007] Furthermore, the bottom of the bypass tee is welded to the top of the main pipe, the bypass line is welded to the outer wall of the bypass tee, the connecting pipe is fixedly connected to the top position of the bypass tee, the hole-opening knife is slidably provided inside the connecting pipe, the outer wall of the connecting pipe has a hole, the pin lock is used to insert into the hole and the limiting hole, the plug is threaded to the outside of the hole to seal the pin lock, the saddle plate slides on the surface of the center drill and is attracted by the strong magnetic block, and a pipe cap is welded to the top of the connecting pipe.

[0008] Preferably, the pin lock is used to fix and limit the hole-opening knife after it has made a hole and been lifted, so as to prevent the hole-opening knife from rotating or falling off.

[0009] Preferably, the plug is used to seal the hole after the pin is inserted and to prevent the pin from sliding in the hole.

[0010] Preferably, the bottom shape of the saddle-shaped plate matches the surface of the main pipe, and the attraction of the strong magnetic block to the saddle-shaped plate is used to prevent the saddle-shaped plate from falling into the main pipe.

[0011] Preferably, there are three strong magnetic blocks, which are fixedly connected at equal intervals around the inner wall of the drilling knife.

[0012] Preferably, the center drill is equipped with a retaining ring.

[0013] Preferably, the outer wall of the connecting pipe is provided with three holes at equal intervals, and the inner wall of the hole-opening knife is provided with three limiting holes accordingly.

[0014] Preferably, the surfaces of the main pipe, the bypass tee, and the bypass pipeline are all coated with a waterproof material.

[0015] This utility model has the following beneficial effects: 1. This utility model solves the problems of complex hot tapping processes, reliance on large specialized equipment, and easy for cutting waste to fall into the pipe and cause blockage or safety hazards in the prior art by embedding and locking the tapping knife, saddle plate, and strong magnetic block as permanent components inside the bypass tee and connecting pipe, and by using the strong magnetic block to adsorb cutting waste after tapping.

[0016] 2. This utility model solves the problems of easy leakage in the later stage caused by flange connection in the prior art, and easy shaking or falling off of the hole-opening tool under the impact of pipeline fluid by welding the bottom, bypass pipeline and top cap of the bypass tee, and setting a pin lock and thread plug to mechanically lock and double seal the hole-opening tool. Attached Figure Description

[0017] Figure 1 A perspective view of a pressure pipeline with a pressurized opening for connecting a branch line tee, as proposed in this utility model; Figure 2 This is a side view of a pressure pipeline with a pressurized opening for connecting a branch line, as proposed in this utility model. Figure 3 This is a partial sectional view of a bypass tee for a pressure pipeline with a pressurized opening for connecting a branch line, as proposed in this utility model. Figure 4 This is a partial structural cross-sectional view of the opening tool for a pressure pipeline tee with a pressurized opening for connecting a branch line, as proposed in this utility model.

[0018] Legend: 1. Main pipe; 2. Bypass tee; 3. Bypass line; 4. Connecting pipe; 5. Pipe cap; 6. Pin lock; 7. Plug; 8. Hole opener; 9. Saddle plate; 10. Center drill; 11. Strong magnet; 12. Hole; 13. Limiting hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example: Please refer to Figures 1 to 4 This utility model provides a tee for connecting branch lines to a pressurized pipe, aiming to solve the problems of complex processes, reliance on large equipment, leakage risks, and the easy occurrence of cutting waste falling into the pipe causing blockages or safety hazards in the existing technology. Figure 1 and Figure 2 As shown, a pressure pipeline with a pressurized opening for branch connection includes a main pipe 1, a bypass tee 2, a bypass line 3, and a connecting pipe 4. The bottom of the bypass tee 2 is fixedly connected to the top of the main pipe 1 by welding. The bypass line 3 is fixedly connected to the outer wall of the bypass tee 2 by welding. The connecting pipe 4 is fixedly connected to the top of the bypass tee 2 by welding. The main pipe 1, the bypass tee 2, and the bypass line 3 together form a three-way interconnected pipeline structure, as shown. Figure 3As shown, a hole-opening cutter 8 is slidably disposed inside the connecting pipe 4. A center drill 10 is installed near the lower end inside the hole-opening cutter 8. A retaining ring is installed on the center drill 10. Three strong magnetic blocks 11 are fixedly connected to the inner wall of the hole-opening cutter 8 and are equidistantly fixed around the inner wall of the hole-opening cutter 8. The hole-opening cutter 8 also includes a slidable saddle-shaped plate 9. The saddle-shaped plate 9 slides on the surface of the center drill 10 and is magnetically attracted by the strong magnetic blocks 11. The bottom shape of the saddle-shaped plate 9 matches the surface of the main pipe 1, such as... Figure 3 and Figure 4 As shown, the outer wall of the connecting pipe 4 has holes 12, and the inner wall of the hole opener 8 has limiting holes 13 corresponding to the position of the holes 12. The outer wall of the connecting pipe 4 has three holes 12 at equal intervals, and the inner wall of the hole opener 8 has three limiting holes 13 corresponding to the position of the holes 12. It also includes a pin lock 6 and a plug 7. The pin lock 6 is used to insert into the holes 12 and the limiting holes 13. The plug 7 is connected to the outside of the holes 12 by a threaded connection to seal the pin lock 6. The top of the connecting pipe 4 is fixedly connected to the pipe cap 5 by welding. The surfaces of the main pipe 1, the bypass tee 2 and the bypass pipeline 3 are coated with waterproof material.

[0021] Please refer to Figure 3 and Figure 4 The core locking and adsorption structure is described in detail below. The outer wall of the connecting pipe 4 has holes 12. The drilling cutter 8 serves as the actuating component. The inner wall of the drilling cutter 8 has limiting holes 13 corresponding to the positions of the holes 12. In a preferred embodiment, the outer wall of the connecting pipe 4 has three equally spaced holes 12, and the inner wall of the drilling cutter 8 has three corresponding limiting holes 13. This arrangement ensures the stability and uniform force distribution of the locking mechanism. The pin lock 6 is used to laterally insert into the holes 12 from the outside of the connecting pipe 4 and engage with the limiting holes 13 of the drilling cutter 8 after the drilling operation is completed and the cutting cutter 8 is retracted and lifted. The hole-making knife 8 is radially fixed and limited by a plug-in connection. This limiting structure is used to prevent the hole-making knife 8 from rotating, shaking, or axially falling off under the impact of fluid inside the pipe, thereby avoiding the hole-making knife 8 falling into the main pipe 1 and causing blockage. The plug 7 is connected to the outside of the hole 12 by a threaded connection and screwed into the pipe wall of the connecting pipe 4. The plug 7 is used to reliably seal the hole 12 after the pin lock 6 is inserted to prevent the medium inside the pipe from leaking. The inner end of the plug 7 abuts against the outer end of the pin lock 6 to prevent the pin lock 6 from sliding or coming out in the hole 12, thereby ensuring the long-term stable fixing effect of the hole-making knife 8.

[0022] Please refer to Figure 3 and Figure 4The internal structure of the hole-opening cutter 8 is used to achieve precise hole opening and the adsorption of hole opening waste. A center drill 10 is installed near the lower end of the hole-opening cutter 8. The center drill 10 is used for center positioning before drilling. The center drill 10 is equipped with a retaining ring. A strong magnetic block 11 is fixedly connected to the inner wall of the hole-opening cutter 8. In this embodiment, three strong magnetic blocks 11 are preferably fixedly connected to the inner wall of the hole-opening cutter 8 at equal intervals. The hole-opening cutter 8 also includes a slidable saddle plate 9. The saddle plate 9 slides and fits on the surface of the center drill 10. The saddle plate 9 is also tightly attracted by the magnetic attraction of the strong magnetic block 11. The bottom shape of the saddle plate 9 is constructed to match the curvature of the outer wall surface of the main pipe 1. This structure is used to make the saddle plate 9 fit tightly against the surface of the main pipe 1 during hole opening to prevent shaking. The strong magnetic attraction of the strong magnetic block 11 to the saddle plate 9 is used to firmly attract the cut saddle plate 9 together with the center drill 10 inside the hole-opening cutter 8 after the hole opening is completed, preventing the saddle plate 9 from falling into the main pipe 1.

[0023] like Figure 3 As shown, the pin lock 6 is used to insert into the hole 12 and the limiting hole 13 after the hole-opening knife 8 completes the hole-opening operation and is withdrawn and lifted from the surface of the main pipe 1, to firmly fix and limit the hole-opening knife 8 mechanically. This limiting structure is specifically designed to prevent the hole-opening knife 8 from unexpectedly rotating or axially falling off under the impact of the flow of the medium inside the main pipe 1. The plug 7 is screwed into the outer opening of the hole 12 through a threaded connection. The plug 7 is not only used to seal the hole 12 to achieve a reliable pressure seal and prevent the medium from leaking out, but the inner end of the plug 7 will abut against the outer end face of the pin lock 6. This abutment structure prevents the pin lock 6 from loosening or sliding outward in the hole 12, ensuring the long-term stability of the fixing effect.

[0024] like Figure 4 As shown, the bottom shape of the saddle plate 9 is precisely constructed to match the curvature of the outer wall surface of the main pipe 1. This matching curved surface structure ensures that the saddle plate 9 can fit tightly against the surface of the main pipe 1 during the drilling process, playing a stabilizing and guiding role and preventing shaking during drilling. Furthermore, the magnetic attraction of the strong magnetic block 11 to the saddle plate 9 is intended to firmly attract the cut saddle plate 9 inside the drilling knife 8 when the drilling knife 8 finishes cutting and retracts, effectively preventing the saddle plate 9 from falling into the main pipe 1 and causing pipe blockage or damage to downstream equipment.

[0025] like Figure 4 As shown, the center drill 10 installed inside the hole punch 8 is equipped with a retaining ring, which is used to axially limit or assist in the installation of the center drill 10.

[0026] As a specific implementation method, such as Figure 3As shown, three holes 12 are evenly spaced on the outer wall of the connecting pipe 4, and three limiting holes 13 are also opened on the inner wall of the hole-opening knife 8 at the corresponding positions. Correspondingly, the number of strong magnetic blocks 11 is also set to three, and the three strong magnetic blocks 11 are evenly fixedly connected to the inner wall of the hole-opening knife 8. This symmetrical structure with three points evenly distributed makes the force on the hole-opening knife 8 more uniform when it is locked by the pin lock 6, and the fixation more reliable. At the same time, it also makes the attraction force of the strong magnetic blocks 11 on the saddle plate 9 more evenly distributed.

[0027] To enhance the durability and environmental adaptability of the device, the surfaces of the main pipe 1, the bypass tee 2, and the bypass pipeline 3 are all coated with waterproof material. This composite protective layer significantly improves the overall waterproof and corrosion-resistant performance of the pipeline.

[0028] Working principle: When it is necessary to urgently install a new branch pipe on the existing pipeline, firstly, the bottom of the bypass tee 2 is fixed to the top middle of the main pipe 1 by welding. At the same time, the bypass line 3 is fixed to the front side of the middle of the outer wall of the bypass tee 2 by welding. This through connection from the main pipe 1 to the bypass tee 2 and then to the bypass line 3 realizes the three-way connection of the pipeline. Before the entire construction, the hole cutter 8 has been pre-set inside the bypass tee 2 and the connecting pipe 4. During actual construction, the external drive device can dock with the top of the hole-making cutter 8. The drive device causes the hole-making cutter 8 to slide down to a suitable distance until the saddle plate 9 at the bottom of the hole-making cutter 8 contacts the upper surface of the main pipe 1. The bottom shape of the saddle plate 9 matches the surface of the main pipe 1, so that it can fit tightly against the surface of the main pipe 1 when making a hole to prevent shaking. Then, the drive device is driven to rotate the hole-making cutter 8 docked with it. The center drill 10 installed in the hole-making cutter 8 is used to drill and position the upper surface of the main pipe 1. The center drill 10 is equipped with a retaining ring. Then, the main cutting edge of the hole-making cutter 8 makes a ring cut on the main pipe 1 to form a connecting hole. During the cutting process, the saddle plate 9 is always firmly attracted by the three strong magnetic blocks 11 fixedly connected to the inner wall of the hole-opening knife 8 through magnetic attraction. The strong magnetic blocks 11 are fixedly connected to the inner wall of the hole-opening knife 8 at equal intervals. The saddle plate 9 slides on the surface of the center drill 10. The attraction of the strong magnetic blocks 11 effectively prevents the saddle plate 9 from falling into the main pipe 1 after the cutting is completed, thus preventing safety hazards. After the hole is opened, the drive device reverses its operation, lifting the hole-opening knife 8 together with the center drill 10, the saddle plate 9 and the strong magnetic block 11 upwards as a whole until the hole-opening knife 8 is completely retracted into the interior of the connecting pipe 4. At this time, the flow channel between the main pipe 1 and the bypass pipe 3 is fully opened. Then, multiple pins 6 are slid from the outside of the holes 12 opened on the outer wall of the connecting pipe 4 to the inside. The outer wall of the connecting pipe 4 has three holes 12 opened at equal intervals. When the pins 6 slide into the hole 12, the end of the pin 6 near the inside will be locked into the corresponding limiting hole 13 opened on the inner wall of the hole opener 8. The pins 6 can effectively fix and limit the hole opener 8 to prevent the airflow or water flow in the bypass tee 2 from being too fast, which would push the hole opener 8 to rotate or fall off. After the pin lock 6 is inserted and fixed, the plug 7 is screwed into the outside of the hole 12 by means of threaded connection. The plug 7 is used to seal the hole 12 to prevent the medium from leaking. The plug 7 can also prevent the pin lock 6 from sliding in the hole 12 and affecting the fixing effect of the hole opener 8. After the entire process is completed, the external drive equipment is removed, and the pipe cap 5 is installed and fixed on the top of the connecting pipe 4 by welding to permanently seal the top of the connecting pipe 4 and ensure its airtightness. The entire pipeline is constructed by using a hole opener 8 to open holes without removing them. Waterproof material is applied to the surfaces of the main pipe 1, the bypass tee 2 and the bypass pipeline 3, which greatly improves the overall waterproof and corrosion resistance of the pipeline.

Claims

1. A pressure pipeline with pressurized opening for branch line tee, comprising a main pipe (1), a bypass tee (2), a pin lock (6) and a plug (7), a bypass line (3) and a connecting pipe (4), wherein the bottom of the bypass tee (2) is welded to the top of the main pipe (1), the bypass line (3) is welded to the outer wall of the bypass tee (2), and the connecting pipe (4) is fixedly connected to the top position of the bypass tee (2); Its features are, The connecting tube (4) is slidably provided with a hole cutter (8). The outer wall of the connecting tube (4) is provided with a hole (12). The inner wall of the hole cutter (8) is provided with a limiting hole (13) corresponding to the position of the hole (12). The pin lock (6) is used to insert into the hole (12) and the limiting hole (13). The plug (7) is connected to the outside of the hole (12) by a thread to seal the pin lock (6). The hole cutter (8) is provided with a center drill (10) near the lower end. The inner wall of the hole cutter (8) is fixedly connected with a strong magnet (11). The hole cutter (8) also includes a slidable saddle plate (9). The saddle plate (9) is slidably fitted on the surface of the center drill (10) and attracted by the strong magnet (11).

2. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The top of the connecting pipe (4) is welded with a pipe cap (5), and the pin lock (6) is used to fix and limit the hole opener (8) after the hole opener (8) is opened and lifted, so as to prevent the hole opener (8) from rotating or falling off.

3. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The plug (7) is used to seal the hole (12) after the pin (6) is inserted and to prevent the pin (6) from sliding in the hole (12).

4. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The bottom shape of the saddle plate (9) matches the surface of the main tube (1), and the strong magnetic block (11) attracts the saddle plate (9) to prevent the saddle plate (9) from falling into the main tube (1).

5. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The strong magnetic blocks (11) are three in number and are fixedly connected at equal intervals around the inner wall of the hole-opening knife (8).

6. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The center drill (10) is equipped with a retaining ring.

7. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The outer wall of the connecting pipe (4) is provided with three holes (12) at equal intervals, and the inner wall of the hole-opening knife (8) is provided with three limiting holes (13).

8. A tee for connecting a branch line to a pressurized pipeline according to claim 1, characterized in that, The surfaces of the main pipe (1), the bypass tee (2), and the bypass pipeline (3) are all coated with waterproof material.

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