CN110701426A - Two-way communication system of intelligent pipeline plugging robot - Google Patents

Abstract

The invention discloses a two-way communication system for a pipeline intelligent plugging robot, comprising an in-pipe signal transceiver (1), a ground outside-pipe signal transceiver (2), a remote signal transceiver (3) and an industrial computer (4), wherein the ground pipe The external signal transceiver device (2) uses the pipe wall as a transmission medium to realize information exchange with the inside signal transceiver device (1), and then uses electromagnetic wave signals to realize the interaction with the remote signal transceiver device (3), and finally realizes the interaction with the industrial computer in a digital signal mode. (4) Information exchange between them, so as to control the blocking device to achieve positioning and blocking in the pipe. The invention realizes fast and stable bidirectional transmission of signals inside and outside the tube through a two-way communication system, thereby increasing the response speed of the occluder and the accuracy of control.

Description

A two-way communication system for pipeline intelligent plugging robot

technical field

The invention relates to a communication system, in particular to a bidirectional communication system of a pipeline intelligent plugging robot.

Background technique

Oil and gas energy has huge reserves in the world, and it is one of the necessary energy sources for national strategic energy reserves. Its importance is self-evident. The transportation of oil and gas is an essential step in oil and gas exploitation. Faced with the problem of pipeline failure caused by the environment or other uncertain factors for a long time, the repair and maintenance of the pipeline is very important. In the pipeline maintenance operation, in the face of partial damage and destruction of the pipeline, the damaged section needs to be replaced to ensure the normal transportation of submarine oil and gas. It can be said that the pipeline is the lifeline of oil and gas energy.

In the process of pipeline maintenance, for the damaged pipeline section that needs to be replaced, firstly lower the blocking device to the target position in the pipeline to be blocked. One end is fixed first, and then the blocking step is completed at the same time after the second blocking device reaches the rear end of the target pipe section and completes the fixing. The damaged pipeline section is then cut and replaced with a new pipeline by welding. Finally, the plugging device is unsealed and recovered to the ground through oil and gas transportation. At this point, the repair work of the subsea transportation pipeline has been successfully completed.

To achieve the above operation, a two-way communication system and method that can stably control the plugging device in real time is required. However, at present, there are very few two-way communication systems between the in-pipe device and the external console that can be used in practical applications, and most of the research stays in theory. stage, and the effect and function are not ideal, such as ultra-low frequency electromagnetic wave technology, although it can realize two-way communication, but its equipment and system are complex, expensive, and the signal transmission speed is slow.

In order to solve the problems existing in the two-way communication of the existing pipeline blocking tools, improve the blocking speed of the pipeline, so as to improve the repair efficiency of the pipeline and the oil and gas transportation efficiency, and reduce the economic loss and environmental pollution caused by oil and gas leakage, To reduce operating costs, a two-way communication system for a pipeline intelligent plugging robot is needed, which can realize the functions of stable and controllable pipeline plugging process and rapid command response in a simpler and faster way, and reduce the deviation between the action point and the target point. At the same time, the repair work time of the pipeline is reduced.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a two-way communication system for a pipeline intelligent plugging robot in view of the existing problems and needs of the existing oil and gas pipeline plugging tools in terms of two-way communication, which solves the problem of command response in the ground remote control pipe plugging device The problems of slow speed, instability, complicated method and high equipment price have realized more accurate positioning of the occluder in the pipeline.

The present invention adopts following technical scheme:

A two-way communication system for a pipeline intelligent plugging robot, the system comprises an in-pipe signal transceiver device, a ground outside-pipe signal transceiver device, a remote signal transceiver device, and an industrial computer.

Specifically, the in-pipe signal transceiver device remains in contact with the inner pipe wall and continues to transmit signals. The signal reaches the ground outside the pipe signal transceiver device along the pipe wall, and the electrical signal is amplified and converted by the signal and transmitted to the remote signal transceiver in the electromagnetic wave signal mode. Then the electromagnetic wave signal is converted into a digital signal, and finally transmitted to the industrial computer through wired transmission, and the position of the blocking device is determined according to the data returned in real time. The remote signal transceiver device is wirelessly transmitted to the ground outside signal transceiver device, and the ground outside pipe signal transceiver device transmits the command signal to the inside pipe signal transceiver device through the pipe wall, and the signal is amplified and processed into a digital signal and then transmitted to the blocking device. The instruction arrives at the blocking device to control the blocking device to work through the control system.

Specifically, the middle part of the signal transceiver device in the tube is a cylindrical structure, with a cable channel inside, and four cylindrical tentacles on the periphery, the top of the tentacles is a conductive contact piece, and a spring and a telescopic rod are arranged inside the tentacle under the conductive contact piece, The conductive contact piece and the A/D signal converter are connected by a cable, and the A/D signal converter is connected to the blocking device through the cable.

Beneficial effects:

The invention adopts the principle of conducting signal transmission in the pipeline, realizes the information exchange between the external industrial computer and the internal blocking device of the metal pipeline, and the signal transmission speed is faster and more stable, the transmission process is simpler, and the equipment cost is lower. The blocking device is positioned more precisely in the pipeline.

Description of drawings:

Fig. 1 is the schematic diagram of two-way communication system and signal transmission of pipeline intelligent plugging robot;

Fig. 2 is the working flow chart of the two-way communication system of the pipeline intelligent plugging robot.

FIG. 3 is a partial inner view of the in-pipe signal transceiving device.

1- In-pipe signal transceiver device, 101- Cylindrical structure in the middle of the in-pipe signal transceiver device, 102- Internal cable connection of the in-pipe signal transceiver device, 103- Cylindrical tentacle, 104- Conductive contact piece, 105- Spring, 106- Telescopic rod , 107-A/D signal converter, 108-cable, 2-ground external signal transceiver device, 3-remote signal transceiver device, 4-industrial computer.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated direction or positional relationship is based on the direction or positional relationship described in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the references to "first" and "second" are for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, “installation”, “connection” and “connection” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in Figure 1-3, a two-way communication system for a pipeline intelligent plugging robot includes an in-pipe signal transceiver 1, a ground outside-pipe signal transceiver 2, a remote signal transceiver 3, and an industrial computer 4.

Further, the central part of the in-pipe signal transceiver device 1 is a cylindrical structure 101 with a cable channel 102 in it, and four cylindrical tentacles 103 on the periphery. The spring 105 and the telescopic rod 106 are arranged below, the conductive contact piece 104 and the A/D signal converter 107 are connected by a cable 108 , and the A/D signal converter 107 is connected to the blocking device through the cable 108 .

When the plugging device is lowered into the pipeline and moves with the oil and gas, the in-pipe signal transceiver 1 keeps in contact with the inner pipe wall and continues to transmit signals. After the signal is amplified and converted, it is transmitted to the remote signal transceiver 3 in the electromagnetic wave signal mode, and then the electromagnetic wave signal is converted into a digital signal, and finally transmitted to the industrial computer 4 through wired transmission, and the position of the blocking device is determined according to the data returned in real time. When the plugging device reaches the designated position, an instruction is issued through the industrial computer 4, and the instruction is wirelessly transmitted to the ground outside the pipe signal transceiver device 2 through the remote signal transceiver device 3, and the ground outside pipe signal transceiver device 2 transmits the instruction signal through the pipe wall to The in-pipe signal transceiving device 1 is amplified and processed into a digital signal and then transmitted to the blocking device. At this point, the instruction reaches the blocking device and the control system controls the blocking device to work further.

The above specific embodiment is a detailed description of the present invention, and it cannot be considered that the specific embodiment of the present invention is limited to these descriptions. Some simple deductions and substitutions should be considered as belonging to the protection scope of the present invention.

Claims (2)

1. The utility model provides a two-way communication system of pipeline intelligence shutoff robot which characterized in that: the system comprises an in-pipe signal transceiver (1), a ground out-of-pipe signal transceiver (2), a remote signal transceiver (3) and an industrial personal computer (4);

the in-pipe signal transceiver (1) keeps in contact with the inner pipe wall and continuously transmits signals, the signals reach the ground out-pipe signal transceiver (2) along the pipe wall of the pipeline, the electric signals are amplified, converted and transmitted to the remote signal transceiver (3) in an electromagnetic wave signal mode, the electromagnetic wave signals are converted into digital signals and finally transmitted to the industrial personal computer (4) through wires, the industrial personal computer (4) determines the position of the plugging device according to data transmitted back in real time, when the plugging device reaches a designated position, the industrial personal computer (4) gives an instruction, the instruction is wirelessly transmitted to the ground external signal transceiver (2) through the remote signal transceiver (3), the ground external signal transceiver (2) transmits an instruction signal to the internal signal transceiver (1) through the pipe wall of the pipeline, the signal receiving and transmitting device (1) is subjected to signal amplification processing to form a digital signal and then transmits the digital signal to the plugging device.

2. The two-way communication system of the intelligent pipeline plugging robot of claim 1, wherein: the middle part of the signal transceiver device (1) in the pipe is of a cylindrical structure (101), a cable channel (102) is arranged in the signal transceiver device, four cylindrical tentacles (103) are arranged on the periphery of the signal transceiver device, the top of each tentacle (103) is provided with a conductive contact piece (104), a spring (105) and a telescopic rod (106) are arranged in each tentacle (103) under the conductive contact piece (104), the conductive contact pieces (104) are communicated with an A/D signal converter (107) through cables (108), and the A/D signal converter (107) is connected into the plugging device through the cables (108).

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