9results about How to "Stable air flow" patented technology

This invention discloses a mobile aluminum ladle baking device, relating to the field of metallurgical equipment technology. It includes a base frame, with a lifting unit and several support frames fixedly mounted on the upper end of the base frame. An installation unit is located on the front side of the lifting unit, and an igniter unit is fixedly connected to the bottom front side of the installation unit. A gas delivery unit is located on the upper part of the support frames, a gas control unit is located on the upper right side of the installation unit, and an air supply unit is located on the upper left side of the installation unit. This invention, through the base frame, electric forklift, traveling unit, and support units, achieves flexible movement, rapid positioning, and stable support of the device within the work area; the lifting unit enables precise lifting of the installation unit, igniter unit, gas control unit, and air supply unit; and the gas delivery unit, gas control unit, air supply unit, and igniter unit ensure safe gas delivery and precise gas-air mixing.

This invention relates to the field of cross-flow fan technology, and more particularly to a cross-flow fan blade and a cross-flow impeller using the same, comprising a blade body; the blade body is a solid structure, and the outer surface of the blade body includes a pressure surface, a suction surface, and two side surfaces; the two ends of the pressure surface respectively enclose the two ends of the suction surface to form a leading edge and a trailing edge of the blade, both of which have rounded ends; the pressure surface gradually concaves towards the suction surface from one end of the leading edge to one end of the trailing edge, and the size of the leading edge is larger than that of the trailing edge; the cross-sectional thickness of the blade body gradually decreases from one end of the leading edge to one end of the trailing edge; the suction surface has a recessed cut that does not penetrate the pressure surface but penetrates both side surfaces. This invention can solve the problems of severe airflow separation, large inlet air impact, high vortex noise, and low fan efficiency existing in the prior art of cross-flow fan blades.

The utility model discloses a ventilation elbow structure convenient to adjust air volume, which comprises a ventilation elbow main body, both sides of the ventilation elbow main body are provided with slots, the interiors of the slots are rotatably connected with adjusting rods, one end of each adjusting rod is fixedly connected with a threaded rod, and the other end of each adjusting rod is fixedly connected with a limiting clamping plate. And a connecting block is fixedly connected to one side of the clamping plate, two elastic connecting plates are inserted into the connecting block, a mounting groove is formed in the surface of the adjusting rod, and a flow guide plate is inserted into the mounting groove. According to the device, by arranging the adjusting rod and the flow guide plate, air flow can only enter and exit through the flow guide hole of the flow guide plate, so that the air flow at the air outlet can be kept stable and cannot be disordered when the wind power is too large, and the safety of the device is improved; and the device can adjust the air outlet amount at the air outlet of the ventilation elbow, and the practicability of the device is improved.

The invention relates to the technical field of fans, in particular to an air outlet system and a swimming pool heat pump machine, and the air outlet system comprises a fan provided with axial flow fan blades; the first flow guide part is arranged on the air outlet side; an embedding hole is formed in the first flow guide part, and at least part of the axial flow fan blades extend into the embedding hole; the second flow guide part is mounted on the side, away from the axial flow fan blades, of the first flow guide part; the second flow guide part and the first flow guide part surround to form an air duct, the air duct extends in the first direction, and air outlets are formed in the two ends, in the first direction, of the air duct; the arc-shaped plate is arranged at the air outlet; the arc-shaped plates are bent in the air outlet direction of the axial flow fan blades, so that airflow flows in the direction away from the air inlet side. According to the embodiment, after passing through the arc-shaped plate, airflow generated by the fan flows in the direction away from the air inlet side under the guiding effect of the arc-shaped plate, and therefore the backflow phenomenon of air outlet airflow can be prevented.

This utility model relates to the field of environmental protection equipment technology, specifically an environmentally friendly paint spray booth with efficient paint mist treatment and exhaust gas purification functions. It includes a booth body, with an air supply system and an exhaust system installed on the outside of the body. The booth body treats exhaust gas through an environmental protection treatment unit, which includes a high-efficiency paint mist capture system located inside the booth body and an activated carbon adsorption exhaust gas purification system installed on the outside of the booth body. In this environmentally friendly paint spray booth with efficient paint mist treatment and exhaust gas purification functions, a high-efficiency paint mist capture system is installed inside the booth body. A circulating water tank, a water pump, and a water curtain plate work together to form a stable water curtain, directly intercepting and capturing paint mist through collision. Combined with the paint mist capture chamber and exhaust fan, the system utilizes water flow scouring and turbulent condensation to efficiently remove paint mist, including fine particles. Compared to traditional filtration methods, the paint mist capture efficiency is improved, reducing the harm of paint mist to the environment and operators, and lowering the cost and replacement frequency of filter consumables.

The invention discloses an electromagnetic air pump, an active air inlet gas detection system and a gas detector, relates to the technical field of gas detection, and solves the problem that an air pump in the prior art cannot meet the use scene of long endurance and continuous and uniform air transmission. The electromagnetic air pump comprises a pump body, the pump body is provided with a diaphragm assembly matched with the suction end and the pump-out end of the pump body, the diaphragm assembly is connected with a bowl-shaped air bag in a matched mode, and a cavity is formed between the bowl-shaped air bag and the diaphragm assembly; a force application transmission mechanism connected with the bowl-shaped air bag is movably arranged on the pump body, a permanent magnet is arranged on the force application transmission mechanism, an electromagnet is arranged on the pump body, and the electromagnet is used for controlling the permanent magnet to move in a reciprocating mode so as to drive the bowl-shaped air bag to deform or move, and therefore the size of the cavity can be adjusted. According to the electromagnetic air pump, by arranging the stress application transmission mechanism, the requirement for electromagnetic driving force between the electromagnet and the permanent magnet can be lowered, meanwhile, the electromagnetic air pump can be matched with the diaphragm assembly to obtain higher pumping pressure, and long-distance continuous air conveying is more stable.

The utility model relates to the technical field of dies for producing hollow spiral pipes, in particular to a hollow spiral pipe die with an air blowing function. Comprising a hollow spiral pipe mold body, a ventilation copper pipe assembly, an airflow control valve and an air source input pipe, an air channel is formed in a middle shaft of the hollow spiral pipe mold body, and the ventilation copper pipe assembly is installed at the end, away from the hollow spiral pipe mold body, of the middle shaft, so that the ventilation copper pipe assembly communicates with the air channel; gas of an external gas source is conveyed into the gas inlet pipe, due to the fact that the output end of the gas inlet pipe is communicated with the gas channel of the middle shaft through the gas conveying pipe, gas flow is conveyed into the ventilation copper pipe assembly, the gas is blown into the extruded and formed pipe through the output end of the ventilation copper pipe assembly, and through the arrangement of the gas flow control valve, the gas flow is controlled. The air pressure flow at the output end of the ventilation copper pipe assembly is stable, and the forming rate and the quality of products are further improved.

The energy-saving type airflow valve comprises a valve body, a driving assembly, a driving fan blade, a transmission structure, a driven fan blade and a flow guide structure, the driving assembly is installed on the outer wall of the valve body, and the driving fan blade, the transmission structure and the driven fan blade are located on the portion, close to an air outlet, of the inner side of the valve body. The driving assembly is rotationally connected with the driving fan blade, the driven fan blade is rotationally connected with the valve body, the driving fan blade and the driven fan blade are connected through a transmission structure, the transmission structure is fixedly connected with the inner wall of the valve body, and a flow guide structure is installed at the air inlet part of the valve body. When the airflow valve is in a closed state, the driving fan blade and the driven fan blades form a baffle. Compared with an existing single-fan-blade design, the multi-fan-blade design enables the turbulence coefficient to be smaller, airflow at the air outlet is more stable, the air inlet is provided with a flow guide structure, wind resistance is smaller, and more energy is saved.

The invention relates to the technical field of lime production, in particular to a coal gas adjusting system and method suitable for lime production through calcination of a rotary kiln and a double-chamber kiln. The coke oven gas is pressurized by the gas pressurizing machine and then is supplied to the rotary kiln and the double-chamber kiln. According to the method, in the coke oven gas booster, backflow is set, large backflow is started during the reversing of the double-chamber kiln and the failure and shutdown of the two kilns, the large backflow is started, the large backflow is stopped, the large backflow is stopped, the large backflow is stopped, and the large backflow is stopped. Throttling and flow stabilization of coke oven gas of two kilns are achieved. The technical problems that the product quality is influenced by gas pressure fluctuation and the production safety is influenced by gas blow-by when the double-chamber kiln is reversed or stopped due to faults are solved, the gas supply pressure and flow of the rotary kiln and the double-chamber kiln are stabilized, meanwhile, gas blow-by during production can be prevented, and the safety of gas combustion is improved.