The invention relates to the technical field of pipeline engineering, in particular to a moving device outside pipelines. The device comprises a pipeline frame body, a moving mechanism and a control unit, wherein the pipeline frame body is suitable to be set up on an outer ring of the pipeline, and includes a main frame component and a secondary frame component which are connected by a first curvature regulating component to form a ring structure; the moving mechanism includes a driving component which is installed on the pipeline frame body, and a traction wheel component which is connected with the driving component and suitable for driving the pipeline frame body to move along the outer ring of the pipeline; the control unit is suitable for an electric connection with the driving component.

Moving device outside pipelines

The invention relates to the technical field of mechanical engineering detection, and especially relates to a pipeline outside welding seam detection device. The device comprises a pipeline rack body, a moving mechanism, an ultrasonic detection unit and a control unit. The pipeline rack body is erected on a pipeline outer ring, and comprises a mother support assembly and a subsidiary support assembly which are connected by a curvature adjusting assembly to form an annular structure; the moving mechanism comprises a driving assembly arranged on the pipeline rack body and a driving wheel assembly connected with the driving assembly and used for driving the pipeline rack body to move along the pipeline outer ring; the ultrasonic detection unit comprises an ultrasonic detector and an ultrasonic probe sensor coupled with the ultrasonic detector; and the control unit is used for being coupled with the ultrasonic detector and is electrically connected with the driving assembly.

Pipeline outside welding seam detection device

The invention discloses a submarine pipeline for reducing a wave effect influence in the sand seabed. A permeating shell is arranged outside the pipeline, and a plurality of anchoring parts are evenlydistributed on the permeating shell. The upper portions of the anchoring parts are connected with a pressure part. The top of the pressure part penetrates out of a vertical rod and is connected witha buoyancy ring through a clamping rod. Pore water of seabed soil bodies on the periphery of the permeating shell is sucked into the pressure part through permeating layers and inner drainage channelsin the anchoring parts and discharged out of the pressure part through side drainage channels of the pressure part. The two sides of the anchoring parts are provided with screws which are rotationally pressed in, and the buoyancy ring can be dismantled through the clamping rod. The buoyancy ring is driven through waves to move up and down so as to generate the vacuum negative pressure, the pore water of the seabed soil bodies is promoted to be discharged, the weakening influence of pressure accumulating of the pore water on the soil body bearing capacity is reduced, and extra devices are notneeded to provide energy in working; and the anchoring parts can further provide the anchoring pressure for anchoring rods on the two sides besides providing a self-gravity pressure stabilizing effect, the screws penetrate through a liquefiable layer, and the capacity of the pipeline to resist seabed liquidation is enhanced.

Submarine pipeline for reducing wave effect influence in sand seabed

The invention relates to a detection wave recording device in an electric system and a data monitoring method. The data collection module of the detection wave recording device is orderly connected with a wave recording computation module and a wave recording management module; the data collection module monitors at least three types of sampling data signals; the data collection module saves different types of data interface real-time sampling values to form a sampling frame at the same moment point; the length of the sampling frame is decided by the configuration information configured by a user through the wave recording management module. The data collection module is submitted to the wave recording computation module to process after forming the sampling frame; the wave-recording computation modules caches and sends the sampling frame, and computes real-time waveform and performs fault judgement, transient wave recording and steady-state wave recording according to the sampling data type and sampling data length. The wave recording manager module is responsible for visualization and human-machine interaction. The user can configure the channel sampling data type and the sampling data length. And the problem that the existing electric system wave recording computation device is single in sampling data type and bad in sampling data accuracy is solved.

Detection wave recording device in electric system and data monitoring method

A signal acquisition card for an IEPE sensor. The acquisition card comprises a constant current source module, an IEPE interface, a filter circuit, an ADC acquisition module, an FPGA, and a communication interface that are connected in sequence, wherein the IEPE interface is adapted to be connected to an IEPE sensor. The acquisition card further comprises a power supply module. The power supply module is connected to the FPGA, the communication interface, the constant current source module, and the filter circuit. By the acquisition card, acquired data can be conveniently uploaded to a computer by means of a USB interface or a network interface, or can be conveniently uploaded to a computer or a server by means of a network interface; the acquisition card is small in size and facilitates data transmission.

Signal acquisition card for iepe sensor

The invention relates to a double-claw type obstacle-crossing direction-adaptive pipeline external detection robot. The detection robot is composed of a mechanical system and a circuit system, wherein the mechanical system is controlled by the circuit system to work; the mechanical system comprises a tube grasping mechanism, a connecting device and a drive device; the tube grasping mechanism is arranged on the connecting device; the drive device is connected with the tube grasping mechanism; and the drive device drives the tube grasping mechanism to act under control of the circuit system. According to the double-claw type obstacle-crossing direction-adaptive pipeline external detection robot, a mechanical structure is combined with a circuit system, so that obstacle-crossing capacity and adaptive adjustment capacity of the external detection robot are realized.

Double-claw type obstacle-crossing direction-adaptive pipeline external detection robot

The invention relates to a high-precision synchronous vibration data collection card for various types of detection signals, and the data collection card comprises three IEPE interface circuits, wherein each IEPE interface circuit is connected with a constant current source circuit, and the output end of each IEPE interface circuit is sequentially in series connection with a program control amplification circuit, a filtering circuit, a single-end rotating difference circuit and an AD converter through the constant current source circuit The output end of a 4-20mA current input interface circuit is connected with the input end of an I/V conversion circuit The output end of the I/V conversion circuit and the output end of a millivolt-level voltage input interface circuit are respectively in series connection with the program control amplification circuits, the filtering circuits, the single-end rotating difference circuits and the AD converters The output end of a +/-5V voltage signal input interface circuit is sequentially in series connection with the filtering circuits, the single-end rotating difference circuits and the AD converters The AD converters in all interface circuits are cascaded, and then are connected to a single-chip microcomputer The control input ends of the program control amplification circuits in all interface circuits are connected in parallel, and then are connected to the single-chip microcomputer The single-chip microcomputer communicates with an upper computer through a USB port The data collection card can achieve the high-precision synchronous collection of data

High-precision synchronous vibration data collection card for various types of detection signals

The invention relates to an anti-corrosion buckle arrestor capable of suppressing vortex-induced vibration and resisting crushing expansion. The anti-corrosion buckle arrestor includes a buckle arrestor body, variable cross section bodies, turbulent flow short plates, and bolts; the variable cross section bodies sleeve two ends of the buckle arrestor body respectively; the variable cross section bodies and the buckle arrestor body are in transition connection through filleted corners, and are fastened by the bolts; a plurality of turbulent flow short plates are arranged between the two variable cross section bodies on the buckle arrestor body; and the turbulent flow short plates are arranged in a cross manner. The anti-corrosion buckle arrestor can effectively prevent submarine pipelines from emergent crushing expansion, can prevent the submarine pipelines from vortex-induced vibration due to suspended span under washing of sea water, and can relatively and effectively reduce corrosion influence of the sea water on the pipelines through a cathode protection method.

Anti-corrosion buckle arrestor capable of suppressing vortex-induced vibration and resisting crushing expansion

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Double-claw type obstacle-crossing direction-adaptive pipeline external detection robot

High-precision synchronous vibration data collection card for various types of detection signals

Anti-corrosion buckle arrestor capable of suppressing vortex-induced vibration and resisting crushing expansion