Launch and reception device for a pneumatic pig of long-distance transport pipelines

Abstract

The utility model discloses long distance conveying pipeline's pneumatic pipe pig launch and receiving device, including pipeline, the pipeline both ends are respectively clamped with launch cylinder and receiving cylinder, the inside wall on launch cylinder is assembled with electric cylinder, and the telescopic end on electric cylinder is assembled with push plate, and the two lateral walls in launch cylinder are respectively inclined and assembled with three jet heads, and the lower wall surface on launch cylinder is assembled with mounting bracket, and the mounting bracket is assembled with the connector, and one end on the connector is assembled with the shunt head, and the shunt head is connected with every jet head respectively with the gas guide pipe, the utility model relates to pneumatic pipe pig launch and receiving technical field, and the device realizes the stable launch of pipe pig, can also carry out airflow acceleration in the launch process, improves the initial speed of pipe pig and keeps the running posture, can also carry out buffering and limiting when receiving, and protects pipe pig and pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic pig transmitting and receiving technology, specifically a pneumatic pig transmitting and receiving device for long-distance pipeline transportation. Background Technology

[0002] Long-distance pipelines are critical infrastructure for material transportation. However, during long-term operation, pipelines inevitably accumulate impurities, scale, and corrosion. These problems not only reduce the pipeline's transportation efficiency and increase energy consumption, but may also lead to pipeline leaks, blockages, and even safety accidents, seriously affecting the continuity and safety of production.

[0003] Existing traditional launching devices have simple structures, making it difficult to ensure that the pig achieves a stable and suitable initial velocity and attitude during launch. This leads to instability in the pig's operation within the pipeline, which may cause blockages and affect the smooth progress of the pigging operation. Furthermore, some receiving devices lack effective buffering measures when the pig arrives, which can easily damage the pig and also cause significant impact on the pipeline. There may already be technical solutions to solve the above-mentioned problems. Therefore, this case aims to provide a replacement or alternative technical solution. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a pneumatic pig launcher and receiver device for long-distance pipelines. It solves the problems of existing traditional launchers having simple structures, making it difficult to ensure that the pig obtains a stable and suitable initial speed and attitude during launch, which leads to unstable operation of the pig in the pipeline and possible blockage, affecting the smooth progress of the pigging operation. Furthermore, some receivers lack effective buffering measures when the pig arrives, which can easily damage the pig and also cause a large impact on the pipeline.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic pipeline cleaning device for long-distance pipelines, comprising a pipeline, with a launching tube and a receiving tube respectively mounted at both ends of the pipeline. An electric cylinder is mounted on the inner wall of the launching tube, and a push plate is mounted on the telescopic end of the electric cylinder. Three jet nozzles are obliquely mounted on the inner walls of both sides of the launching tube. A mounting frame is mounted on the lower wall of the launching tube, and a connector is mounted on the mounting frame. A diverter is mounted on one end of the connector, and an air guide pipe is connected between the diverter and each of the jet nozzles. Four first fastening bolts are screwed between the launching tube and the pipeline.

[0006] Preferably, four shock-absorbing springs are installed on the inner side wall of the receiving tube, and a buffer plate is installed between the four shock-absorbing springs. Three exhaust ports are respectively machined on the two side walls of the receiving tube. An assembly frame is installed on the upper wall of the receiving tube, and an electric push rod is installed on the lower wall of the crossbeam of the assembly frame. A limit rod is installed on the telescopic end of the electric push rod, and the limit rod is located inside the receiving tube.

[0007] Preferably, a pressure sensor is embedded in the side wall of the buffer plate, and a rubber layer is fitted on the side wall of the buffer plate and on the side of the pressure sensor.

[0008] Preferably, a rubber column is fitted on the lower end of the limiting rod.

[0009] Preferably, four second fastening bolts are screwed between the receiving tube and the pipe.

[0010] Preferably, an opening is machined on the lower wall of the receiving tube, a stop door is fitted inside the opening, and limit pins are movably assembled on the lower wall of the receiving tube on both sides of the stop door. Beneficial effects

[0011] This utility model provides a pneumatic pig launching and receiving device for long-distance pipeline transportation. It offers the following advantages: This device achieves stable launching of the pig, accelerates the airflow during launch to increase the pig's initial speed and maintain its operating posture, and provides buffering and limiting during reception to protect both the pig and the pipeline. This solves the problems of existing traditional launching devices, which have simple structures and struggle to ensure a stable and suitable initial speed and posture for the pig during launch, leading to unstable operation within the pipeline and potential blockages that hinder the pigging operation. Furthermore, some receiving devices lack effective buffering measures when the pig arrives, easily damaging the pig and potentially causing significant impact on the pipeline. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the pneumatic pig transmitting and receiving device for long-distance pipelines described in this utility model.

[0013] Figure 2 This is a top cross-sectional view of the pneumatic pig transmitting and receiving device for long-distance pipelines described in this utility model.

[0014] Figure 3 This is a bottom view of the pneumatic pig transmitting and receiving device for long-distance pipelines described in this utility model.

[0015] In the diagram: 1-pipe; 2-launching tube; 3-receiving tube; 4-electric cylinder; 5-push plate; 6-jet head; 7-mounting bracket; 8-connector; 9-diverter head; 10-air guide pipe; 11-first fastening bolt; 12-shock-absorbing spring; 13-buffer plate; 14-assembly bracket; 15-electric push rod; 16-limiting rod; 17-pressure sensor; 18-rubber layer; 19-rubber column; 20-second fastening bolt; 21-gate; 22-limiting pin. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example: Refer to Figure 1-3A pneumatic pipeline cleaning and receiving device for long-distance pipelines includes a pipeline 1. A launching tube 2 and a receiving tube 3 are respectively mounted at both ends of the pipeline 1. An electric cylinder 4 is mounted on the inner wall of the launching tube 2, and a push plate 5 is mounted on the telescopic end of the electric cylinder 4. Three jet nozzles 6 are obliquely mounted on the inner walls of both sides of the launching tube 2. A mounting bracket 7 is mounted on the lower wall of the launching tube 2, and a connector 8 is mounted on the mounting bracket 7. A diverter 9 is mounted on one end of the connector 8, and a guide pipe 10 is connected between the diverter 9 and each jet nozzle 6. Four first fastening bolts 11 are screwed between the launching tube 2 and the pipeline 1. Four shock-absorbing springs 12 are mounted on the inner wall of the receiving tube 3, and a buffer plate 1 is mounted between the four shock-absorbing springs 12. 3. Three exhaust ports are machined on each of the two side walls of the receiving cylinder 3. An assembly frame 14 is mounted on the upper wall of the receiving cylinder 3. An electric push rod 15 is mounted on the lower wall of the crossbeam of the assembly frame 14. A limit rod 16 is mounted on the telescopic end of the electric push rod 15. The limit rod 16 is located inside the receiving cylinder 3. A pressure sensor 17 is embedded in the side wall of the buffer plate 13. A rubber layer 18 is mounted on the side wall of the buffer plate 13 and on one side of the pressure sensor 17. A rubber column 19 is mounted on the lower end of the limit rod 16. Four second fastening bolts 20 are screwed between the receiving cylinder 3 and the pipe. An opening is machined on the lower wall of the receiving cylinder 3. A stop door 21 is fastened in the opening. Limit pins 22 are movably mounted on the lower wall of the receiving cylinder 3 and on both sides of the stop door 21. The specific working principle is as follows: In use, the launch tube 2 and the receiver tube 3 are clamped onto both ends of the pipeline. After clamping, the launch tube 2 is secured with the first fastening bolt 11, and the receiver tube 3 is secured with the second fastening bolt 20. After preparation, the gas supply equipment is connected to the connector 8 installed on the mounting bracket 7. After connection, the external power supply is turned on, and the operation is controlled by the programmable controller installed on the launch tube 2. The gas supply equipment supplies gas, and the gas is ejected from the jet nozzle 6 through the air guide pipe 10 on the diverter 9, creating an acceleration space inside the launch tube 2 and in front of the pig. The electric cylinder 4 installed inside the launch tube 2 pushes the push plate 5 installed on its telescopic end to quickly extend and retract, pushing out the pig. During the pushing process, the pig passes through the acceleration space formed by the air ejected from the jet nozzle 6, undergoing three stages of acceleration, so that the pig can stably enter the pipeline for cleaning. The gas supply equipment continues to supply gas to keep the pipeline empty. The airflow speed causes the pig to move within the pipeline. When the pig enters the receiving cylinder 3, it touches the rubber layer 18 on the buffer plate 13. The buffer plate 13 is cushioned by the shock-absorbing spring 12. At the same time, the pressure sensor 17 installed on the buffer plate 13 senses the pressure and sends a signal. The programmable controller installed on the receiving cylinder 3 receives the signal and sends a control command. The electric push rod 15 installed on the assembly frame 14 pushes the limit rod 16 installed on its telescopic end to extend and retract within the receiving cylinder 3, causing the rubber column 19 on the limit rod 16 to quickly descend and be positioned behind the pig, providing flexible limitation for the pig. The rubber column 19 is elastic, which reduces damage to the pig during limitation and prevents the buffered pig from impacting the pipeline. After receiving, the second fastening bolt 20 is loosened, the receiving cylinder 3 is flipped over, the limit pin 22 is turned to open the gate 21, the pig can be removed, and the dirt inside the receiving cylinder 3 can be cleaned. The exhaust port facilitates gas flow.

[0020] 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 alterations 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 pneumatic pig transmitting and receiving device for long-distance pipelines, comprising a pipeline (1), characterized in that, The two ends of the pipe (1) are respectively fitted with a launch tube (2) and a receiver tube (3). An electric cylinder (4) is installed on the inner side wall of the launch tube (2). A push plate (5) is installed on the telescopic end of the electric cylinder (4). Three jet heads (6) are respectively installed obliquely on the inner side walls of the launch tube (2). A mounting bracket (7) is installed on the lower wall of the launch tube (2). A connector (8) is installed on the mounting bracket (7). A diverter head (9) is installed on one end of the connector head (8). A guide pipe (10) is connected between the diverter head (9) and each jet head (6). Four first fastening bolts (11) are screwed between the launch tube (2) and the pipe (1).

2. The pneumatic pig transmitting and receiving device for long-distance pipelines according to claim 1, characterized in that, Four shock-absorbing springs (12) are mounted on the inner wall of the receiving tube (3), and a buffer plate (13) is mounted between the four shock-absorbing springs (12). Three exhaust ports are respectively processed on the two side walls of the receiving tube (3). An assembly frame (14) is mounted on the upper wall of the receiving tube (3). An electric push rod (15) is mounted on the lower wall of the crossbeam of the assembly frame (14). A limit rod (16) is mounted on the telescopic end of the electric push rod (15). The limit rod (16) is located inside the receiving tube (3).

3. The pneumatic pig transmitting and receiving device for long-distance pipelines according to claim 2, characterized in that, A pressure sensor (17) is embedded in the side wall of the buffer plate (13), and a rubber layer (18) is assembled on the side wall of the buffer plate (13) and on the side of the pressure sensor (17).

4. The pneumatic pig transmitting and receiving device for long-distance pipelines according to claim 2, characterized in that, A rubber column (19) is fitted on the lower end of the limiting rod (16).

5. The pneumatic pig transmitting and receiving device for long-distance pipelines according to claim 1, characterized in that, The receiving tube (3) is screwed to the pipe with four second fastening bolts (20).

6. The pneumatic pig transmitting and receiving device for long-distance pipelines according to claim 1, characterized in that, An opening is machined on the lower wall of the receiving tube (3), and a stop door (21) is fitted inside the opening. Limit pins (22) are movably assembled on the lower wall of the receiving tube (3) and on both sides of the stop door (21).

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