2results about How to "Achieve integrated control" patented technology

The utility model relates to the technical field of control cabinets, and discloses a control cabinet of a reinjection water integrated system, which comprises a cabinet body front inner door and an overground display provided with a multifunctional human-computer interface and a UCS direct-reading sensor. A main power circuit breaker, a reinjection frequency converter, an electric quantity acquisition module, a vector frequency converter, a main output contactor, an anti-reversal contactor and a reinjection pump output contactor are arranged at the front part of the cabinet body; a control transformer, a power supply filter, a GPRS module, a temperature controller and an external signal terminal are arranged in the rear door of the cabinet body, and the multifunctional human-computer interface is connected with the reinjection frequency converter, the vector frequency converter, the electric quantity acquisition module and the UCS direct-reading sensor ground display through a 485 serial port communication network. According to the integrated control system for the screw pump and the reinjection pump, integrated control over the screw pump and the reinjection pump is achieved, meanwhile, the UCS direct-reading sensor, the ground displayer, the underground pressure sensor and the 485 communication network containing the GPRS module are matched, integrated collection of data is achieved, relevant operation data are uploaded in real time, and the data integration capacity is improved.

The application discloses monodisperse smooth spherical silver powder, a preparation method and application thereof, wherein the silver powder has a particle size distribution parameter D100 of less than or equal to 4.0 microns, a sphericity ratio range of 0.85 to 1.15, and a specific surface area range of 0.60 to 0.75 m 2 / g. In view of the trend of narrow line width of the metalized printing of the crystalline silicon solar cell, the silver powder as the conductive phase of the silver paste needs to have a smaller D100 value and higher monodispersity. The application realizes high sphericity of the silver particles by constructing high supersaturation, inhibits agglomeration by combining two types of surface adsorbents with adsorption effect, and then adjusts the D100 value and optimizes the smoothness of the surface by Ostwald ripening process, so as to obtain the silver powder with excellent monodispersity, small D100 value, high sphericity and smooth surface, which effectively meets the high-precision requirement of the narrow line width printing of the photovoltaic cell, and is suitable for the field of high-performance conductive paste preparation.