4results about How to "Continuous and reliable operation" patented technology

The utility model relates to the technical field of coating technology discloses sound circuit board coating protection film device, including base, the base bottom fixedly connected with two supports, the base top edge fixedly connected with the protective shell, the protective shell inboard fixedly connected with the supporting plate, the supporting plate top fixedly connected with electric guide rail no.

The present application relates to the technical field of self-driven measurement-while-drilling tool, and particularly relates to a self-driven along-drill-string measurement system based on a friction nanogenerator. The technical scheme comprises a friction nanogenerator, an energy management unit, a low-power wireless communication relay node and a ground control terminal. The friction nanogenerator is used to collect the vibration energy of the drill pipe and convert it into electric energy. The friction nanogenerator adopts a sliding independent layer structure and comprises a rotor and a stator. The present application realizes distributed self-driving by deploying the friction nanogenerator at each communication node and utilizing the downhole vibration energy. The energy converted by the friction nanogenerator at the drill bit is enough to emit stronger communication signals, ensuring sufficient energy supply, rapid response of communication content and efficiency, developing information transmission technology with continuous power supply and low-power operation in the process of measurement-while-drilling, and realizing bidirectional communication of information, which has remarkable engineering value for difficult-to-exploit oil and gas resources.

This invention discloses a low-corrosion high-temperature energy storage molten salt and its method. The molten salt composition includes 20%~30% potassium chloride, 20%~30% sodium chloride, 1%~5% aluminum powder, 1%~5% magnesium powder, 1%~5% zinc powder, and the remainder is magnesium chloride. This invention discloses a low-corrosion high-temperature energy storage molten salt with high stability, low corrosivity, a simple preparation process, and ease of large-scale production. It can achieve excellent thermal storage performance at 600℃~800℃ with low corrosivity, has a large latent heat of phase change, high energy utilization rate, and low requirements for the material grade of metal load-bearing components such as tanks and pipelines, which can significantly reduce the cost of solar thermal engine composite materials.

The invention discloses a multi-stage sewage purification system and a sewage purification process, relates to the technical field of sewage treatment, and aims to solve the problems of poor treatment effect, low automation degree and low water resource utilization rate of an existing sewage purification system. The pretreatment unit, the first-stage biochemical purification unit, the second-stage deep purification unit, the third-stage precise filtration unit, the disinfection and discharge unit and the central controller are sequentially communicated in the water flow direction, all the units are communicated through sealing pipelines, and a flow regulation and control valve group is arranged between every two adjacent units. A multi-stage collaborative purification structure is adopted, solid impurities, sand grains, organic pollutants, nitrogen and phosphorus, heavy metal ions and pathogenic microorganisms in sewage can be removed layer by layer through pretreatment, biochemical purification, deep purification, precise filtration and disinfection discharge in sequence, and the problems that an existing system is single in treatment process and limited in purification effect, and the effluent quality is difficult to reach the standard are thoroughly solved. And the effluent quality is stable and meets the set standard.