What is an induced fan What is the function

Induction fan: also known as jet fan, relay fan.

It carries out the transfer of air through induction. The air volume itself is very small. It is commonly used in the ventilation system of the garage in public facilities to stir and clear the local air dead ends, so that the local air can be improved.

The main thing is to save space. The ductless induced ventilation subsystem composed of multiple groups of fans can form a whole ventilation and smoke exhaust system with supply fans and exhaust fans.

Its working principle is to induce fresh air or treated air outside by the directional high-speed air flow shot by a number of inducing fan nozzles designed and appropriately arranged, and send it to the required area under the condition of no air duct, so as to achieve the best indoor airflow organization and achieve efficient and economical ventilation effect. When using the ductless jet induction ventilation system, the design, manufacture can be omitted, and the whole layer is the ventilation duct, the air supply fan, the exhaust fan needs the wind pressure much smaller than when using the pipeline, so that the fan with large air volume and lower wind pressure can be selected, the required power is reduced, the operating cost and investment cost are greatly reduced, when the supply and exhaust fan stops running, the inducing fan can still operate, and plays the role of local ventilation.

The exhaust fan is to discharge the indoor air to the outside, the blower is to send the outdoor air to the room, and the inducing fan only transfers the indoor air.

The function of the induced draft fan is to remove the high-temperature flue gas generated by the combustion of the boiler, maintain the pressure of the furnace, form a flowing flue gas, complete the heat exchange of the flue gas and air without a bench, and discharge it to the flue through the dust collector to adjust the stability of the negative pressure of the boiler furnace. Induced draft fans are widely used for ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced air for boilers and industrial furnaces; Air conditioning, cooling, ventilation in Kuga equipment and household appliances, etc. <

The function of the induced draft fan is to remove the high-temperature flue gas generated by the combustion of the boiler, maintain the pressure of the furnace, form a flowing flue gas, complete the heat exchange of flue gas and air, and discharge it to the flue through the dust collector to adjust the stability of the negative pressure of the boiler furnace.

Induced draft fans are widely used for ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced air for boilers and industrial furnaces; coarse rot of air-conditioning equipment and cooling and ventilation in household appliances; drying and selection of grains; Wind tunnel wind source and hovercraft inflation and propulsion, etc. The working principle of the induced draft fan is basically the same as that of the turbine compressor, but due to the low gas flow rate and the small change in pressure, there is generally no need to consider the change of gas specific volume, that is, the gas is treated as an incompressible fluid.

1) It is obviously uneconomical to turn on the whole system at the first detection of CO exceedance. Therefore, the system sets the first test.

When the CO is exceeded, only the induction fan at the detection point needs to be turned on for dilution.

2) When the CO concentration of the same unit is still exceeded after working the set dilution time, the system has reason to think that the entire garage is saturated, and the induction fan of the entire fire partition must be turned on for ventilation.

3) After the whole induction ventilation system is opened, only a flow field is formed in the garage, so that the air is transported to the exhaust outlet according to the designed route. The exhaust fan in the exhaust shaft must be turned on in order to discharge outward. Therefore, it is necessary to link the exhaust host.

In the same way, if it is a complete inner area, it is necessary to link the air supply fan to supplement the fresh air.

Constant frequency start, frequency conversion start.

As the name suggests, the fan is a mechanical equipment for pumping or supplying air, the working principle of the fan is to input electric power, drive the fan impeller to rotate through the motor, and achieve the effect of suction or exhaustion of the gas, the fan is composed of air inlet, impeller, shell, motor and other components, the motor is to convert the electric power into mechanical power, drive the impeller to rotate, the air inlet is to guide the gas to enter the impeller smoothly, and the impeller is to transfer the kinetic energy when rotating to the gas.

Preparation before start-up After receiving the order from the commander, fill in the operation ticket. After 30 hours, the induced draft fan can be activated for ventilation and cooling. Emergency cooling boilers.

Q: The difference between intelligent induction fan and ordinary induction fan:

1. The intelligent induction fan adopts intelligent travel control, which can automatically control the operation status of the fan according to the indoor temperature and humidity to ensure that the indoor temperature and humidity are appropriate, while the ordinary induction fan needs to be manually operated and cannot be automatically adjusted according to the indoor temperature and humidity.

2. The intelligent induction fan adopts computer intelligent control, which can automatically adjust the speed of the fan according to the indoor temperature and humidity, which can achieve the effect of energy saving, while the ordinary induction fan can only manually adjust the speed of the Zhenshengjie fan, and cannot be adjusted according to the indoor temperature and humidity, so as to achieve the energy-saving effect.

Induction fan features: 1Reduced civil construction cost:

The jet induction ventilation system does not need to install air supply and exhaust pipes, which can reduce the height of each floor of the underground garage and save the cost of underground engineering excavation and concrete structure engineering. 2.Significant reduction in investment in ventilation equipment:

Compared with the traditional duct ventilation method, the equipment investment can be reduced by 40%. 3.Good energy-saving effect and low operating costs

The jet induction ventilation system avoids the power consumption caused by the resistance of the air duct, and can choose the low-pressure fan to supply air and exhaust air, the system has low power consumption, and the induced fan is used with various smoke exhaust mixed flow fans produced by the company, which can significantly reduce the operating cost. Generally, it can reduce the power consumption of operation by 45%. 4.

Simple design: It saves a lot of work in the calculation and arrangement of the duct, and there is no cross-interference with other pipelines. The designer only needs to design the position of the supply and exhaust fan and the air supply and exhaust outlet, and arrange the jet induced fan.

5.Air in large spaces such as garages***: The airflow direction is flexibly arranged, leaving no air retention in dead corners.

Harmful gases flow to the exhaust outlet with the direction of the induced airflow, effectively purifying the air.