3results about How to "Automatic speed adjustment" patented technology

The utility model relates to a tunnel ventilation equipment technical field, concretely is an intelligent tunnel ventilation control system based on stepless speed regulation technology. Include: wind speed sensor for real -time monitoring the wind speed in the tunnel, main control unit for receiving the data of wind speed sensor, calculates the fan speed regulation amount, and generates control instruction, stepless speed regulation drive module is connected with main control unit, realizes the smooth stepless regulation of fan blade rotating speed through the adjustment fan input voltage or frequency, feedback module is used for real -time monitoring the actual rotating speed and operating condition of fan, and the data is fed back to main control unit, forms closed -loop control, communication module, communication module connects feedback module, is used for realizing remote control and data interaction, storage module is used for storing wind speed, rotating speed and control instruction historical data, user interface is used for providing operation interface, and the user sets target wind speed through touch -sensitive screen or remote control equipment.

The present disclosure relates to an extracorporeal circulation device and an extracorporeal membrane oxygenator, the extracorporeal circulation device comprising: a pressure detection device, a power pump, a flow detection device and a main machine; the pressure detection device, the flow detection device and the power pump are electrically connected with the main machine; the pressure detection device is arranged at an input end connecting pipe of the power pump; the flow detection device is arranged on a connecting pipe of the extracorporeal circulation device; the pressure detection device is used for monitoring the input end pressure of the power pump in real time and sending the input end pressure to the main machine; the flow detection device is used for monitoring the blood flow in the connecting pipe of the extracorporeal circulation device in real time and sending the blood flow to the main machine. The present disclosure can automatically adjust the rotating speed of the extracorporeal circulation device when the wall sticking occurs, solve the wall sticking, improve the overall reaction speed, avoid the operation time delay caused by the insufficient monitoring or the insufficient experience in the human judgment, and cause serious consequences.

The utility model discloses a cooling device with a water pump and a fan coaxially driven. The cooling device comprises a double-shaft motor and a water pump head. By arranging the heat dissipation mechanism, the double-shaft motor is started to facilitate cooling liquid to enter the annular micro-channel through the liquid inlet pipe, meanwhile, the fan impeller rotates to blow out cold air dissipated from the surface of the annular micro-channel to achieve the cooling effect, and the problems that on one hand, the heat dissipation fan and the water pump are arranged in a split mode, the occupied space is large, and the cooling effect is poor are solved. Particularly, compact integration is difficult to realize in miniaturized equipment, so that lightweight development of the equipment is seriously restricted; on the other hand, the overall energy consumption of the system is obviously increased due to independent driving of double motors, in addition, long-distance pipeline connection not only causes pressure loss of cooling liquid and reduction of heat exchange efficiency, but also brings higher leakage risk due to increase of sealing joints, and meanwhile, a distributed structure enables daily maintenance and overhaul processes to be complicated, so that the service life of the system is prolonged. The operation and maintenance cost is further improved, and the effects of improving the heat exchange efficiency and reducing the energy consumption are achieved.