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将离心风机调试至最佳状态可以从多个方面入手

人气:22 评论:0 日期:2018-08-10 23:01:05

离心风机是一台构造复杂的设备,主要有进风口,风阀,叶轮,电机、出风口组成。在不同的状态下,离心风机的效果也不相同。因此,不同的部分运行状况不同意,离心风机的效果会受到影响。将离心风机调试至最佳状态可以从多个方面入手。
Centrifugal fan is a complex equipment, mainly composed of air inlet, air valve, impeller, motor and air outlet. Under different conditions, the effect of centrifugal fans is also different. Therefore, different parts of the operation do not agree, the effect of centrifugal fans will be affected. The centrifugal fan can be debugged to the best condition.

1、离心风机允许全压起动或降压电动,但应注意,全压起动时的电流约为5-7倍的额定电流,降压起动转矩与电压平方成正比,当电网容量不足时,应采用降压起动。
1, the centrifugal fan allows full pressure starting or depressurization, but it should be noted that the current of the full pressure starting is about 5-7 times the rated current, the starting torque is proportional to the square of the voltage, and when the capacity of the power grid is insufficient, the step-down start should be adopted.

2、离心风机在试车时,应认真阅读产品说明书,检查接线方法是否同接线图相符;应认真检查供给风机电源的工作电压是不是符合要求,电源是否缺相或同相位,所配电器元件的容量是否符合要求。
2, when the centrifugal fan is in trial, we should carefully read the product instructions and check whether the wiring method is in accordance with the wiring diagram; it should be carefully checked whether the working voltage of the supply fan power is in conformity with the requirements, whether the power supply is missing or the same phase, and whether the capacity of the components of the electrical appliance is in conformity with the requirements.

3、试车时人数不少于两人,一人控制电源,一人观察风机运转情况,发现异常现象马上停机检查;首先检查旋转方向是否正确;离心风机开始运转后,应马上检查各相运转电流是否平衡、电流是否超过额定电流;若有不正常现象,应停机检查。运转五分钟后,停机检查风机是否有异常现象,确认无异常现象再开机运转。
3, the number of people in the test is not less than two people, one person controls the power supply, one observes the operation of the fan, and finds out the abnormal phenomenon immediately. First check whether the rotation direction is correct; after the centrifugal fan starts running, it should immediately check whether the operating current of each phase is balanced, whether the current is more than the rated current; if there is abnormal current, it should be abnormal now. The image should be checked out. After running for five minutes, check if there is any abnormal phenomenon in the fan, confirm that there is no abnormal phenomenon, then turn on the machine.

4、双速离心风机试车时,应先起动低速,检查旋转方向是否正确;起动高速时必须待风机静止后再启动,以防高速反向旋转,引起开关跳闸及电机受损。
4, when the double speed centrifugal fan is in test, the low speed should be started first to check whether the rotation direction is correct; when the fan is started at high speed, it must be restarted after the blower is still, in order to prevent the high speed reverse rotation and cause the switch trip and the motor damage.

5、离心风机达到正常转速时,应测量风机输入电流是否正常,离心风机的运行电流不能超过其额定电流。若运行电流超过其额定电流,应检查供给的电压是否正常。
5. When the centrifugal fan reaches the normal speed, it is necessary to measure whether the input current of the fan is normal, and the running current of the centrifugal fan can not exceed its rated current. If the running current exceeds its rated current, check whether the supply voltage is normal.

6、离心风机所需电机功率是指在一定工况下,对离心风机和风机箱,进风口全开时所需功率较大。若进风口全开进行运转,则电机有损坏的危险。风机试车时最好将风机进口或出口管道上的阀门关闭,运转后将阀门渐渐开启,达到所需工况为止,并注意风机的运转电流是否超过额定电流。

6. The power required by the centrifugal fan is the power required for the centrifugal fan and the fan box when the inlet is fully opened under certain conditions. If the inlet is fully opened for operation, the motor is in danger of damage. When the fan is in test, it is better to close the valve on the inlet or outlet pipe of the fan. After the operation, the valve is gradually opened to reach the required condition, and should pay attention to whether the operating current of the fan exceeds the rated current.


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