The design of the radiator cooling fan steps have?
As is known to all, radiator cooling fan is the use of forced convection heat, its own training effect, make the air in a certain way, by implementing the forced convection cooling mode to achieve the cooling effect. However, with the application situation and the change of environmental temperature, sometimes need different speed cooling fan to meet the demand, so a lot of manufacturers are designed to produce a variety of radiator cooling fan, so from the passage we know how to heat the cooling fan wiring, the small make up is to introduce the design steps of the radiator cooling fan. Radiator cooling fan design steps: step one: the design of the radiator cooling fan first, the relationship between the air volume and air pressure measurement, measuring the characteristics of air flow is very difficult, there are two ways of method used to measure the static pressure and air volume, one for the wind tunnel test, another way for the box. Air volume and static pressure feature specification is double box method is used to measure, the variable air exhaust system using double box method to adjust the air density, moment to open the nozzle will cause instantaneous changes of the static pressure and air volume, and then reads each hydrostatic pressure reading on the meter. In the operation of the standard atmosphere and fixed under the conditions of voltage and frequency, static pressure airflow volume as the performance of function. Static efficiency of radiator cooling fan is equal to the volume of air volume multiplied by the static pressure divided by the input of electricity. Radiator cooling fan is including motor, fan and casing outside, so the efficiency including the motor efficiency of motor, and the door leaf and frame of air flow efficiency. Step 2: all the system impedance/radiator cooling fan system characteristic curve of air flow, air flow in the flow path can meet system internal parts, the impedance will limit the free flow of air. The change of pressure is measured by static pressure, expressed in inches of water column. Each tank platoon in order to confirm the wattage, cooling system design or manufacturer must have not only effective heat dissipation of radiator cooling fan fan characteristic curve to determine the maximum air volume, and must know wind resistance curve of the system. System of internal parts can cause the loss of air pressure. The loss due to the air volume change, known as the system impedance. In addition, the cooling system operating point are characteristics of the cooling fan and cooling fan characteristic curve intersection point, called the system operating point, the working point is the optimal operation point of radiator cooling fan. In the working point, the change of the radiator cooling fan slope to a minimum, and system characteristic curve of the change rate is the lowest. Pay attention to the radiator cooling fan static efficiency ( Airflow by air pressure present electricity) For the optimization. Design steps of the radiator cooling fan will be here to share, in addition, we also pay attention to keep the air in the design of flow is not blocked, as far as possible into the outlet tuyere and unblocked, heat dissipation of the cooling fan guide vertical airflow through the system, to ensure that the air flow is smooth and enhance cooling efficiency.