The title of the Circular Pipe Fan
The circular Pipe Fan is an ideal ventilator with the perfect combination of performance and appearance. The clever cooperation between the newly designed chassis and the centrifugal impeller makes the gas hydromechanics reach the extreme, and its shape is small and very practical. With easy installation, light weight, low noise and so on. For the air, exhaust, return air and air purification to provide the source of power, high pressure can take tens of meters of pipe, a fan control multi-zone centralized ventilation, commonly used in real estate buildings, indoor ventilation Or pipe pressure. Circular duct fans can be the same size on both sides of the pipe, while the other side into the wind out of the wind
working principle
Circular duct blower with wing-shaped backward impeller, high-speed operation of gas hydrodynamics to the extreme, so the energy efficiency is very high, up to 70%, which means that with the smallest motor power delivery maximum wind power, which is normal Forward Centrifugal Fan can not achieve the effect. Therefore, both the fan duct energy-saving and strong winds. Ultra-high pressure can take tens of meters of pipe concentrate ventilation, the main characteristic of the pipeline fan is the pressure. Replace the traditional ventilation equipment. Fan vibration-free, dynamic balance of less than 0.17g, only the standard value to ensure the superior quality fan, imported metal impeller or PP plastic perforated in accordance with the wing, which is characterized by strong rigidity, high temperature, environmental protection, air volume Large, but also to a certain extent reduce the noise.
Round tube fan core with an external rotor motor, its life depends on the bearing, the motor uses imported single deep groove ball bearings, external rotor motor compact structure, small size, energy efficient, pure imported bearings, 120 ℃ automatic parking hot Protection, high-quality copper winding and so on. 24h continuous operation can be more than 30,000 hours.
About noise
if you want to customize product, please contact us.
Circular Pipe Fan Circular Pipe Fan,Pipe Type Exhaust Fan,Circular Pipe Centrifugal Fan,Variable Frequency Pipe Fan Shenzhen Fusheng Motor Co.,Ltd , http://www.fushengfan.com
Wireless high-voltage nuclear phase meter method of use:
When the live conductor is touched, the acoustic signal can be heard and 4 indicators are on. After 5-10 seconds, LED2-4 will be off and the sound signal will be stopped. The transmitter will set the working time as 5-10 seconds after voltage measurement. Enter the phase measurement, at this time only one LED indicator light, if the sound and light signals after 5-10 seconds, that is, the battery power is insufficient to replace the battery. If you want to test the other phase of the line, you need to remove the transmitter from the line until the LED1 goes out and put the transmitter on the line to do another voltage measurement. Ibid.
When entering the measurement mode, the transmitter transmits radio frequency signals to the air while a part of the signal is transmitted along the line as an antenna. Once the receiver can recognize the signal, the receiver immediately starts operation.
Wireless high-voltage nuclear phase meter maintenance:
1. This instrument is a precision instrument and should not be opened at will.
2. If you do not use it for a long time, you should remove the collector battery.
3. Change the battery at least once a year.
4. The instrument should be stored in an environment that avoids humidity, high temperature, and dust.
5, insulation rod should be used before the first pressure test.
6. Insulation rods are subjected to a pressure test once a year.
Note: The upper end of the first section of the insulated rod has a built-in antenna of 350mm long, and it is not possible to perform a withstand voltage test. The built-in antenna and the insulation voltage of the outer wall of the rod are 15kV.
Attachment : Safety Code:
1. During on-site testing, the operator should operate according to the high-voltage test safety distance standard of the power department.
2. The tested insulating rod voltage level is ≤220KV.
3, (Special attention: Please carefully check the insulation performance of the insulation rod before each use, pay attention to the weather, strictly abide by the relevant provisions of the national high-pressure test!)
4. The safety rules and regulations of the unit should be carefully implemented during use, and the relevant regulations of the DL408-91 safe work procedure (electrical part of the substation of the power plant) should be strictly observed. Carefully store the instrument and check the insulation regularly.
5. The insulation rod is 6-section retractable. When it is in use, regardless of whether the working voltage is the highest voltage, the telescopic insulation rod should be pulled to the longest state (about 3.1 meters), and the handshake can only be held in the sixth quarter. Do not shake hands in the fifth quarter.
6. Avoid using radio transmitters (interphones, etc.) simultaneously during use to avoid interference with the receiver.
Motor does not make any sound, the fan is mainly air flow sound, because the impeller speed is high 2500 rpm, resulting in high pressure air volume is high, so you can take a long pipe with the same and to ensure that does not affect the air flow. If you use it when you sleep at night, it is certainly noisy. However, you can reduce the speed to reduce the noise, it is to ensure that there is sufficient air volume to reduce the speed.
The wireless high-voltage digital nuclear phase meter is used for phase verification and phase sequence verification of power lines and substations, and has functions such as nuclear phase, phase sequence detection, and electrical inspection. With strong anti-interference, meet (EMC) standard requirements, adapt to various electromagnetic field interference occasions. The high-voltage phase signal to be measured is taken out by the collector and directly emitted after being processed. It is received by the nuclear phase meter and phase comparison is performed to locate the result after the nuclear phase.