3results about How to "Constant load" patented technology

A separation and recovery device for thiophene-containing BT oil includes a BT oil thiophene removal system, a first distillation column, and a second distillation column. The inlet of the BT oil thiophene removal system is connected to a BT oil source, and the outlet is fed to the first distillation column via a first pipeline. The outlet of the condenser at the top of the first distillation column forms a first benzene outlet, and a first reflux pipeline is provided connected to the reflux port of the first distillation column. The bottom of the first distillation column is fed to the second distillation column via a second pipeline. The top of the second distillation column is connected to the inlet of the reboiler heat exchange medium channel at the bottom of the first distillation column via a third pipeline. The outlet of the reboiler heat exchange medium channel at the bottom of the first distillation column forms a second benzene outlet, and a second reflux pipeline is provided connected to the reflux port of the second distillation column. This invention has a simple structure, is easy to operate, and can effectively separate and recover benzene and toluene from BT oil with high purity. It also effectively reduces the heat load of separating benzene and toluene, and can handle high-concentration thiophene petroleum benzene.

The invention discloses a new energy electric energy complementing circuit and system, electrical equipment and a control method thereof, and belongs to the photovoltaic field. Comprising a new energy power generation module, a commercial power supply module, a rectification module and a DC / DC module. The new energy power generation module is connected with a load through the DC / DC module; the commercial power supply module is connected with a load after sequentially passing through the rectifier module and the DC / DC module; when the first voltage of the new energy power generation module is greater than the second voltage of the commercial power supply module after passing through the rectification module, the DC / DC module is used for adjusting the first voltage as the target voltage of the load; and when the first voltage is smaller than or equal to the second voltage, the DC / DC module is used for increasing the power factor of the load. According to the scheme, the new energy power generation module and the commercial power supply module share one DC / DC module to be connected with the load, there is no need to provide a component for each of the new energy power generation module and the commercial power supply module, and the cost is greatly reduced while it is ensured that functions are not changed.

The utility model discloses an electric device and a damper thereof, the electric device comprises a shell and a core body arranged in the shell, the core body comprises a first inner core and a second inner core, the first inner core is provided with a shaft hole used for being fixedly connected with a motor shaft or a spline shaft, and the first inner core and the second inner core are arranged in a relative rotation mode to form a damping cavity. The damping cavity is filled with damping oil. The connecting cover can be detachably connected with the motor shell or the machine head shell, when the connecting cover is connected with the motor shell, the first inner core is fixedly connected with the motor shaft, the motor shaft drives the first inner core to rotate synchronously, when the connecting cover is connected with the machine head shell, the first inner core is fixedly connected with a spline shaft of the machine head, and when the spline shaft rotates along with the input shaft, the first inner core rotates synchronously. The spline shaft drives the first inner core to rotate synchronously, and the damping oil and the second inner core rub against the first inner core to generate resistance, so that constant load can be provided, stability in the testing process is ensured, and the requirement of an electromagnetic compatibility test of a motor or a machine head is met.