63results about How to "Reduce construction hazards" patented technology

The invention discloses a freeze soil area oil and gas pipeline displacement monitoring method and system. A plurality of fiber bragg grating displacement sensors a (10) and a plurality of fiber bragg grating displacement sensors b (11) are arranged on one sides of oil and gas pipelines (2) in a freeze soil area, all the sensors are connected in series in a welding mode and then introduced into a monitoring station through optical cables (12), the optical cables (12) are connected with a photoswitch (13), the photoswitch (13) is connected with a fiber bragg grating interrogator (14), the fiber bragg grating interrogator (14) is connected with a lower computer (15), data preprocessed by the lower computer (15) are transmitted to a low-orbit satellite (17) through a satellite communication module (16), data are forwarded by the low-orbit satellite (17) to a satellite communication module (18), and received data are transmitted by the satellite communication module (18) to an upper computer (19) and analyzed and processed by the upper computer (19). The freeze soil area oil and gas pipeline displacement monitoring method and system are high in precision, high in stability and low in cost.

The utility model relates to a triangular expansion type electric wire holder. The force application part of the wire holder is changed from the vertical direction of a wire into a direction the sameas a direction in which the wire penetrates into the wire holder. The wire holder is mainly composed of a wire holder shell, a screw rod, a driving nut, connecting rods and a linkage shaft. When the screw rod is rotated in a forward direction, the driving nut matched with the bottom of the screw rod rises according to a meshing force between screw threads; the hinged linkage shaft portion of the two connecting rods extrude towards a wiring area, so that the wire is clamped between the shell and the linkage shaft; and the functions of the installation, connection and conduction of the wire arecompleted. The above can be operations can be performed inversely, so that the clamped wire can be relieved. In the whole operation of connecting the wire into the wire holder, the clamping or unclamping action of the mechanism in the wire holder on the wire is completed in the wire holder, so that the appearance size of the wire holder is not changed.

The invention discloses an automatic pipe arranging system for a marine drilling platform. The automatic pipe arranging system for the marine drilling platform comprises a derrick, at least one set of pipe grabber for grabbing and arranging drill pipes, a hydraulic catwalk, a mouse hole and a PLC (Programmable Logic Controller) control unit for controlling the whole system, wherein the derrick is fixed on the drilling platform, and the mouse hole is fixed below the drilling platform. The automatic pipe arranging system for the marine drilling platform is characterized in that a guide rail stand column is provided with an upper mechanical arm and a lower mechanical arm, the front ends the upper mechanical arm and the lower mechanical arm are both provided with a rotation type connecting base, the rotation type connecting base of the upper mechanical arm is at least provided with a pipe grabbing hand and a make-up and break-out device, and the rotation type connecting base of the lower mechanical arm is at least provided with a pipe grabbing hand. The automatic pipe arranging system for the marine drilling platform has the advantages of achieving the abutting joint of the drill pipes in the air and being capable of automatically adjusting the position of the upper drill pipe and the lower drill pipe during an abutting joint process, shortening abutting joint time, improving working efficiency and reducing construction cost.