3results about How to "Adequate ventilation" patented technology

A mixed-flow ventilation fan includes a base plate and a panel that snaps onto it. An exhaust pipe is connected to the rear of the base plate. An air inlet is provided on the panel, communicating with the exhaust pipe on the base plate. A motor mount is connected to the inner wall of the exhaust pipe via several guide vanes. The motor mount is fixed to the central axis of the exhaust pipe by the guide vanes. A drive motor is installed inside the motor mount, and a front fan blade is mounted on the main shaft of the drive motor. The front fan blade rotates inside the exhaust pipe, drawing in air from the air inlet and expelling it from the rear of the exhaust pipe. The beneficial effects of this invention are: the front fan blade is a mixed-flow fan blade, and combined with an optimized number of blades and a reasonable design of the inclination angle, curvature, and angle of attack of the inner and outer edges of the blades, the blades can efficiently perform work on the air during rotation, generating excellent airflow characteristics that balance large air volume and high air pressure.

The invention relates to the technical field of fermentation devices, and discloses a five-flavor mannan medicated bath liquid fermentation device which comprises a fermentation barrel, a feeding box arranged on the fermentation barrel, a discharging opening formed in the bottom of the fermentation barrel, an exhaust opening formed in the fermentation barrel and an air inlet formed in the bottom of the fermentation barrel. A first stirring rod is rotationally connected into the fermentation barrel, a spiral blade is connected to the lower portion of the first stirring rod, a sleeve is rotationally connected into the bottom end of the fermentation barrel, and two scraping plates are symmetrically connected to the side wall of the sleeve; by arranging the driving mechanism and the planetary gear assembly, a first stirring rod, a spiral blade, two scraping plates and a second stirring rod can rotate in a matched mode, it can be ensured that medicated bath liquid and small-particle medicinal materials are fully mixed, ventilated and evenly heated in the fermentation process, proliferation of fermentation strains is facilitated, and therefore the fermentation effect is improved; the time required by fermentation is effectively shortened, and the fermentation efficiency is further improved.

The utility model discloses an outdoor unit and an air energy heat pump system. The outdoor unit comprises a shell, a domestic water tank, an outdoor side heat exchanger, a compressor, a hot water side heat exchanger and a hot water side water pump. The interior of the shell comprises a first space area, a second space area and a third space area, the second space area is located on the horizontal side of the first space area, and the third space area is located below the first space area and the second space area correspondingly. The domestic water tank is vertically installed in the first space area, the outdoor heat exchanger is installed in the second space area, and the compressor, the hot water side heat exchanger and the hot water side water pump are installed in the third space area. The internal space of the outdoor unit is reasonable in layout, air does not need to enter the water tank side, the outdoor unit can be installed against the wall, the installation space is saved, meanwhile, the air volume and the heat exchange efficiency of the outdoor side heat exchanger cannot be affected, the space utilization rate is increased, and miniaturization of products is achieved.