camikorea

About camikorea

How are you? We have developed a new Pohang University of Science and Technology Professor TORNADO SWIRLER VORTEX FAN ventilation system has been developed strategic alliances with companies that export to overseas companies. Industry Challenges Local exhaust ventilation or in a certain area or infrequent local gas , dust, and bad Taken in order to remove contaminants such as used. Local exhaust ventilation is generally part of the exhaust Pressure (负压) by the air flow is used. Floating pollutants in the air intake side vents , its airborne substances Which is brought to exhaust gas , such as in the case of air movement because it represents almost five Exhaust pollutants into the air in a part , simply suck , but as the dust inertia Contaminants detached from the large air flow into . In addition, due to the movement of people hoengpung or any special space is applied to the flow , which Never reach the location of the air vent does not continue to preach the reunion , the location of the air There is no effect of ventilation , the position has continued to accumulate contaminants . Therefore necessary to have as much effect on the position of the intake flow in the direction of the exhaust port Also to elevate and at the end of the suction flow rate should be increased exhaust . Further, even if the gas is not a lateral -like particles can settle down by gravity , in which Particles to move to the exhaust direction of the exhaust flow rate of the drop in speed of particle beam It should be large enough . The flow rate of the exhaust fan , but we often think that large enough , but not actually being in a well-ventilated It is made ​​directly to the exhaust fan is not enough , because the flow rate is . For instance 3CMM ( min 3m ³) has a flow rate of about 108 sq. ft room exhaust fan if the button for about 3 Minutes of indoor contaminants should be removed every 30 minutes to play , but actually do is clean Do not feel it is right that the flow rate decreases . This problem is fundamentally based on the distance from the exhaust flow is drastically reduced , because That . Exhaust pollutants from a typical indoor conditions required for the direction of flow in sending Degree ( speed trap , capture velocity) is 0.25 ~ 1.3m / s is . The absorption rate is the rate at the exhaust port Floating contaminants are not the location of the required flow rate In order to overcome these problems by increasing the exhaust flow generally increase the rate of absorption by The . However, the energy required for the flow is proportional to the cube of the flow rate . Exhaust flow rate that is two To increase the exhaust -fold to eight times the energy required to be consumed . This is to speed up the absorption capacity of the fan or blower is economically increase film This means that the burden . Exhaust system , as well as existing technologies, there is no other alternative Long , but .... Currently, most of the leading companies are using expensive and less energy consumption BLDC motor exhaust Device to increase the flow rate of the exhaust system for the development of so-called high-efficiency concentrating. However, despite these improvements, the noise of the device , problems such as excessive energy costs, Due to the flow rate ( flow rate ) is increased there is a limit to speed be trapped . In addition, to speed up the collection industry , the local exhaust hood as possible sources of ... Swirler Vortex Ventilation (SVV) These general ventilation in order to overcome the problems of the exhaust system has been developed vortex swirler. In which the exhaust air outlet speed is at a position away from the exhaust port in the same condition to increase the flow rate would give a total concentration of the exhaust rate constant direction at a constant direction / position of the device to improve absorption capacity. Vortex Flow chapter beat to efficiently produce a vertical rotation of the pin is built with a circular plate made of safety net installed at the entrance of the swirler for exhaust. Vortex swirler in the radial direction of the exhaust system exhaust air to push naemyeo, pushed by the suction force of Okanagan air exhaust vent coming back towards the lower end of the swirler band formed in a donut-shaped vortex, the faster the flow rate of the exhaust port as jimyeonseo more than twice the depth of the trap, a trapping area 10 times increased. Typical conventional exhaust systems of the trapping rate have a contour shape of the sphere is almost won but swirler trapped vortex velocity contour of the exhaust system is concentrated in one direction. Therefore swirler vortex exhaust system up to a certain distance from the capture speed and depth of capture compared to other exhaust system has a superior performance without compare. The principle of Swirler Vortex Ventilation General ventilation negative pressure is formed in the exhaust from all directions in space toward the exhaust port Flow is formed (see Figure 1), the flow area is very large, therefore, proportional to the square of the distance along the flow cross-sectional area increases flow velocity tore in inverse proportion to the square of the distance decreases. Trapping region in order to increase the depth and trapping a strong vortex (vortex) is required. Swirler vortex generator in the fan starts to turn the air swirler installed Fin naemyeo radial thrust, pushed by the suction force of Okanagan air exhaust vent coming back up, a donut-shaped vortex formation at the bottom of the strip swirler begins. The vortex of air curtain bands Role. When the turbulence is stronger vortex swirler bands were formed at the bottom gradually move outward enshrined at the end of the swirler. Due to this vortex flow of the air flowing up into the central part of the collecting exhaust port area is wider in the axial direction

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