3results about How to "Guarantee long-term stable operation" patented technology

The utility model discloses a fluid-magnetic-solid coupling-based cold spraying elbow nozzle and spraying equipment, the fluid-magnetic-solid coupling-based cold spraying elbow nozzle comprises a pipe body and a coil assembly, the pipe body comprises a convergent part, a throat part, an expansion part, a bending part and an extension part, one end of the convergent part far away from the throat part is provided with an opening, and the other end of the convergent part far away from the throat part is provided with an opening. The two opposite ends of the bending part are communicated with the expansion part and the extension part respectively, an outlet is formed in the end, away from the bending part, of the extension part, the bending part is bent, the coil assembly comprises a support and a coil part arranged on the support, the coil part covers part of the bending part and part of the extension part, and the coil part is used for generating a non-uniform magnetic field; spraying particles can be dynamically guided under the action of magnetophoresis force, path deviation caused by inertia is compensated, the directionality and deposition efficiency of the spraying particles are remarkably improved, the problem that a coating is not uniform is solved, the spraying particles are concentrated in the center of a flow channel through magnetic field regulation and control, the collision frequency of the spraying particles and a bent part is reduced, and the service life of the nozzle is prolonged.

This invention discloses a submarine cable acoustic monitoring system based on scattering-type fiber optic fingerprint technology, belonging to the field of fiber optic sensing technology. The system includes a light source module, a transmitting module, a submarine cable fiber optic sensing unit, a dual-balanced detector module, and a signal processing module. In the light source module, the continuous light output from the laser is split into a probe light and a local reference light by a dynamic beam splitter. The probe light is modulated and injected into the submarine cable fiber, and the resulting backscattered Rayleigh light carries acoustic information back. The dual-balanced detector module has a built-in light intensity monitoring unit that monitors the light intensity of the reference light and the scattered light in real time. By comparing the two intensities, it sends a feedback control signal to the dynamic beam splitter, dynamically adjusting the splitting ratio to maximize the interference term intensity coefficient, thereby improving the signal amplitude and sensing sensitivity. This invention solves the problems of limited sensing distance and high laser linewidth requirements in traditional systems, and is suitable for long-distance, high-reliability submarine cable acoustic event monitoring and location in deep-sea environments.

This utility model discloses a microgrid dispatch and control terminal system, including a controller body. A line straightening mechanism is fixedly connected to the bottom of the front middle part of the controller body, and a joint reinforcement mechanism is fixedly connected to the top of the line straightening mechanism. The line straightening mechanism includes a connecting plate. By setting up the line straightening mechanism and the controller body, rapid line straightening and stable clamping are achieved. It also has intelligent monitoring and protection functions, which greatly improves the safety and operation and maintenance efficiency of the microgrid. During use, operation and maintenance personnel can complete the line connection and fixation with simple operation, which greatly saves working time and labor costs. At the same time, the addition of intelligent monitoring function enables operation and maintenance personnel to understand the line operation status in real time, and can promptly detect and deal with potential safety hazards, effectively avoiding safety accidents caused by line faults and ensuring the long-term stable operation of the microgrid.