Combined Flow Closed Cooling Tower
Closed Cooling Tower is operated by circulating water or fluid, which is divided into two closed loops.
1. Circulation in the tower: the circulating water or fluid passes through the hot zone environment. After the water temperature rises, it enters the surface cooler in the tower, and the heat is sent to the environment outside the tower through the surface cooler and ventilation fan. The cooled circulating water or fluid is sent to the heat source by the water pump.
2. Circulation outside the tower: the spray water is sent to the spray system by the water tank through the water pipe. After spraying, the spray water first exchanges heat with the filler, so that the spray water can be cooled rapidly. At this time, the water contacts the surface of the surface cooler for heat exchange. Part of the hot steam is discharged through the ventilation fan, and the cooled spray water drops to the water tank for secondary circulation to form an external circulation for cooling.
Combined Flow Closed Cooling Tower,Bac Cooling Tower,Cooling Tower Systems,Chiller Tower Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhou-arkfluid.com
It can be equipped with an eddy current sensor, a magnetoelectric speed sensor, and a magnetoresistive sensor to monitor the unit speed. This monitor is mainly used for speed monitoring and alarm;
Range: 0~9999r/min;
Accuracy: ±1r/min;
Number of teeth: 0~255 arbitrary.
Users can set parameters such as range, number of teeth, alarm value, and alarm status according to their own requirements. It can be used to continuously monitor and measure the rotational speed of the rotating mechanism. When the measuring rotating machine rotates beyond the set speed, the monitor outputs an alarm signal.
It can be widely used in the measurement of the rotational speed and zero speed of large rotating machinery (such as steam turbines, compressors, motors, fans, pumps, etc.) in the power, metallurgy, petrochemical and paper industries.
Supply voltage: 220VAC ± 10% 50Hz
Range: 0～60000 rev/min (adjustable)
Input signal: eddy current sensor, magnetoelectric speed sensor, Hall type speed sensor (optional)
Input impedance: ≥20KΩ
Output signal: 4 ~ 20mA (load? 300Ω)
Display mode: Five-digit LED digital display accuracy: indication error ± 1 word, analog output accuracy: 0.05 %
Number of teeth per week: 0 to 120 (adjustable)
Buffer output: VL -1 ~ +1V, VH +10 ~ +15V
Alarm output: 1. Output contact: two groups (alarm, danger)
2. Contact status: normally open or normally closed
3. Contact capacity: 250VAC/3A or 30VDC/5A
4. Contact delay: 0s ~ 19s (adjustable)
5. Alarm status: self-recovery, self-locking, bypass (adjustable)
Tachometer SQSC-485
Operating temperature: -20 ° C ~ 60 ° C
Storage temperature: -30 ° C ~ 85 ° C
Relative humidity: 20~95% Non-condensing installation schematic sensor dedicated digital display sensor series
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Tachometer SQSC-485
Tachometer SQSC-485