6results about How to "Guaranteed wind pressure" patented technology

The utility model provides a cement raw material feeding bin, and relates to the technical field of cement production equipment, the cement raw material feeding bin comprises a feeding bin body, the feeding bin body comprises a material storage part and a material discharging part, the material discharging part is arranged in a necking shape, a separation assembly is arranged at the discharging end of the material storage part, and a material distribution assembly is arranged at the feeding end of the material discharging part. The discharging amount and the discharging flow speed of the raw materials by the material storage part can be effectively controlled, meanwhile, after a certain amount of the raw materials are discharged, the separation assembly is controlled to enable the material storage part and the discharging part to be completely separated, smoke in the kiln can be prevented from flowing back into the feeding bin when the raw materials are discharged into the kiln from the discharging part, and the discharging efficiency of the raw materials is improved. And therefore, the working environment during feeding in the kiln is guaranteed.

The application discloses a double-layer wind-locking large fan, and aims at solving the problem that when the welding quality cannot reach the technical requirement or the flange plate and the air inlet I or the annular bottom plate and the left side plate are not connected tightly, external airflow is easily led into the fan, thereby affecting the air pressure of the fan. The left side plate (4) outwardly connected with the sealing plate (8) on the surface of the support frame (9) is adopted, and the sealing plate (8), the support frame (9) bottom plate and the left side plate (4) are sleeved on the air inlet II (7) of the impeller (3).

The present invention provides a head assembly, an air duct system, and a fan. A head assembly includes an air outlet duct and an air guide plate. A plurality of air guide plates separate the air outlet duct into a plurality of air outlet portions. The air outlet portions include a first wind wall and a second wind wall arranged opposite to each other, wherein: the first wind wall includes a first curved guide surface and a first outlet surface connected to the first curved guide surface along the airflow direction; the second wind wall includes a second curved guide surface and a second outlet surface connected to the second curved guide surface along the airflow direction; an air outlet gap is formed between the first outlet surface and the second outlet surface, and along the airflow direction, an extended surface of the first curved guide surface intersects with the second outlet surface, and an extended surface of the second curved guide surface intersects with the first outlet surface. The head assembly in the present invention has a large air outlet volume and a strong wind pressure.

The air-cooled cooking utensil comprises a pot body and an inner container, the pot body comprises an outer cover provided with a ventilation window, a heat preservation cover provided with an air inlet, a fan used for cooling the inner container and a fan support, the fan support is fixed to the heat preservation cover corresponding to the air inlet, and the ventilation window and the fan support are in butt joint to form an air inlet channel; the fan is located in the air inlet channel, the butt joint position of the ventilation window and the fan support is located in the interlayer space of the outer cover and the heat preservation cover, and a sealing piece is arranged between the ventilation window and the fan support to seal the butt joint gap between the ventilation window and the fan support. The sealing piece is arranged between the ventilation window and the fan support, the butt joint gap between the ventilation window and the fan support can be sealed, the problem that cold air generated in the using process leaks into the interlayer space from the gap or the fan sucks hot air in the interlayer space from the gap is solved, the air cooling efficiency is further improved, and the air cooling effect on the inner container is improved.

The utility model belongs to the technical field of fan impellers, and particularly relates to a volute-free axial flow exhaust fan which comprises an axial flow shell, a motor and an impeller, the impeller is a spherical centrifugal impeller, and the spherical centrifugal impeller comprises a motor shaft installation piece located in the center and a motor shaft installation piece arranged coaxially with the motor shaft installation piece. At least one hub piece is arranged along the thickness direction, the hub piece and the motor shaft mounting piece are connected through a plurality of blades, the adjacent hub pieces are connected through a plurality of blades, a spherical body structure is formed, and the blades are arranged at intervals, so that the spherical centrifugal impeller is adopted, the axial flow direction is realized, the installation is convenient, the wind pressure and the flow rate are ensured, and the service life of the impeller is prolonged. And the spherical centrifugal impeller adopts a spherical structure, so that the air outlet surface is far larger than the air inlet surface, and the noise can be effectively reduced under the condition of the same power and air volume.

A warmer structure comprises a box body and a cover plate, the cover plate covers the box body in a sealing mode, a box body partition plate is further arranged in the box body, and the box body partition plate divides the box body into a ventilation area and a warming area. A first volute is arranged in the heating area, and the left end and the right end of the first volute communicate with warm air channels correspondingly. The box body partition plate is provided with partition plate warm air ports corresponding to the two warm air ducts, and heating devices are arranged in the partition plate warm air ports; a second volute is arranged on the top surface of the box body partition plate on the outer side of the wind wheel mounting port, the front or the rear of the second volute is communicated with a ventilation air duct, and a ventilation port corresponding to the ventilation air duct is formed in the box body; a fan is arranged in the first volute, the output end of the fan is connected with a wind wheel, the lower portion of the wind wheel is arranged in the first volute, and the upper portion of the wind wheel penetrates through the wind wheel installation opening to be arranged in the second volute. The wind wheel blades positioned in the first volute and the wind wheel blades positioned in the second volute are arranged in opposite directions; the cover plate is provided with an air inlet corresponding to the wind wheel and a warm air outlet corresponding to the partition warm air port.