2results about How to "Overcome imbalance" patented technology

The utility model discloses a lithium battery pack voltage acquisition circuit, the lithium battery pack is formed by connecting a plurality of battery cells in series, the lithium battery pack voltage acquisition circuit comprises a plurality of voltage division acquisition units, the plurality of voltage division acquisition units respectively acquire the anode voltage of each battery cell, and the acquisition ends of the adjacent voltage division acquisition units are respectively connected through equalization resistors. The equalization resistor is formed by connecting one resistor or a plurality of resistors in series. According to the voltage acquisition circuit of the lithium battery pack, the acquisition ends of the adjacent voltage division acquisition units are respectively connected through the equalization resistors, and the voltage acquisition circuit is used for equalizing the power consumption among the batteries, so that the problems that the power consumption in each string of batteries is different due to different resistance voltage division, and the batteries are unbalanced after multiple times of use and circulation are solved.

This invention relates to the field of water treatment technology for recirculating aquaculture systems (RAS), and discloses a method for rapidly cultivating stable nitrifying bacteria in a land-based recirculating aquaculture system. The method includes the following steps: Step S1, system preparation and enrichment of ammonia-oxidizing bacteria; Step S2, oxygen deprivation and regulation to inhibit ammonia-oxidizing bacteria and create a growth window for nitrite-oxidizing bacteria; Step S3, restarting oxygenation to promote the establishment of nitrite-oxidizing bacteria dominance; Step S4, stable system operation. This method for rapidly cultivating stable nitrifying bacteria in a land-based recirculating aquaculture system achieves rapid startup of the biofilter and synchronization with aquaculture production, greatly improving facility utilization. This invention completely changes the traditional two-stage model of "cultivating bacteria first, then releasing fish." By simultaneously releasing low-density aquaculture organisms after system water injection, the bacteria cultivation process is fully integrated into the early stage of aquaculture. This allows the biofilter to reach a stable operating state within 25-30 days after the start of aquaculture, significantly shortening the system idle period.