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空压机怎么防止电机焚毁的6个原因
Time:2018-10-13 16:37:07       来源:http://www.jnkbjx.com/      

空压机怎么防止电机焚毁的6个原因

How can the air compressor prevent the motor from burning down for 6 reasons
电动机焚毁在日常中很常见,防止电动机焚毁最有效的预防措施是进行正确的技能保护。
Motor burning is very common in daily life. The most effective preventive measure to prevent motor burning is correct skill protection.
其首要保护方法有以下六点,给我们简略介绍如下:
The primary protection methods are as follows: six.
1.常常坚持电动机的清洁
1. always insist on motor cleaning.
电动机在动行中,有必要常常坚持进风口的清洁。
When motor is moving, it is necessary to insist on cleaning of intake.
在进风口周围至少3m以内不允许有尘土.水渍.油污和其它杂物,以防止被吸入电动机内部。
Dust, water, grease and other debris are not allowed around the air inlet for at least 3 m to prevent being sucked into the motor.
若这些尘土.油.水被吸入电动机内部,便形成短路介质,损坏导线绝缘层,形成匝间短路,电流增大,温度升高而焚毁电动机。
If the dust, oil and water are absorbed into the motor, a short-circuit medium is formed, the insulation layer of the conductor is damaged, the inter-turn short circuit is formed, the current increases, the temperature rises, and the motor is burned down.
所以要确保电动机有足够的绝缘电阻,以及杰出的通风冷却环境,才干使电动机在较长期运转中坚持在安全安稳的状况。
Therefore, it is necessary to ensure that the motor has sufficient insulation resistance, as well as excellent ventilation and cooling environment, so that the motor in a long-term operation in a safe and stable state.
2.在额外负荷下作业
2. work under extra load.
电动机过载运转,首要原因是拖动的负荷过大,电压过低,或被带动的机械卡滞等。
Motor overload operation, the primary reason is that the drag load is too large, voltage is too low, or drive the mechanical stuck.
当电动机处于过载状况下动行时,就会导致电动机的转速下降,电流增大,温度升高,绕组线圈过热。
When the motor is running under overload condition, it will cause the motor speed to drop, current to increase, temperature to rise, winding coil overheating.
若长期过载,电动机在高温下绝缘老化失效而焚毁,这是电动机焚毁的首要原因。
If long-term overload, the motor insulation aging failure and burning at high temperature, which is the primary cause of motor burning.
因而电动机在动行中,要注意常常查看传动装置运转是否活络.牢靠,随时查看调整传动带的松紧度,联轴器的同轴度,若发现有卡滞现象,应立即停机查明原因排除毛病后再运转。
Therefore, when the motor is running, we should pay attention to check whether the transmission is flexible and reliable, check and adjust the tightness of the transmission belt at any time, coaxiality of the coupling, if there is a phenomenon of stuck, should immediately stop to find out the cause of trouble before running.
3.三相电流须坚持平衡
3. three-phase current must be balanced.
对于三相异步电动机来说,其三相电流中,任何一相的电流与其它两相电流的平均值之差不允许超越10%,才干确保电动机安全正常地运转。
For a three-phase asynchronous motor, the difference between the average current of any one phase and that of the other two phases is not allowed to exceed 10%, so as to ensure the safe and normal operation of the motor.
假如单相的电流值与另两相电流平均值超越规则极限,则标明电动机有毛病,有必要查明原因,排除毛病后才干持续运转,不然会发作焚毁电动机的事故。
If the single-phase current value and the average value of the other two-phase current exceed the rule limit, then the motor is marked defective, it is necessary to find out the cause, eliminate the defect before continuing operation, otherwise the motor will be incinerated.
4.坚持正常温度
4. stick to normal temperature.
要常常查看电动机的轴承.定子.外壳等部位的温度有无反常,特别对无电压.电流和频率监督设备及没有过载保护设备的电动机,温升的监督尤为首要。
Always check the temperature of the bearing, stator, housing and other parts of the motor abnormal, especially for no voltage, current and frequency monitoring equipment and no overload protection equipment motor, temperature rise monitoring is particularly important.
如发现轴承附近的温升过高,应立即停机,查看轴承是否损坏或缺油。若轴承损坏,应更换新轴承后方可作业,若轴承缺油,应增加润滑脂,不然轴承会进一步损坏导致塌架,引起扫膛而焚毁电动机。
If it is found that the temperature rise near the bearing is too high, it should be stopped immediately to see if the bearing is damaged or lacking oil. If the bearings are damaged, new bearings should be replaced before operation. If the bearings are short of oil, grease should be added. Otherwise, the bearings will be further damaged and lead to collapse, causing bore sweeping and incineration of the motor.
5.观察有无振荡.噪音和反常气味
5. observe whether there is oscillation, noise and abnormal smell.
电动机若呈现振荡,会引起与之相连的机具不同轴度增大,使电动机负载增大,电流升高,温度上升而焚毁电动机。因而,电动机在运转中,要常常查看地脚螺栓.电动机端盖.轴承压盖等是否松动,衔接装置是否牢靠,发现问题要及时解决。
If the motor presents oscillation, it will cause the different axes of the machine connected with it to increase, so that the motor load increases, current increases, temperature rises and burns the motor. Therefore, when the motor is in operation, it is necessary to check whether the anchor bolts, motor end caps, bearing caps are loose, whether the connecting device is reliable, and to solve the problems in time.
济南空压机
噪声和异味是电动机运转反常.发生毛病的先兆,有必要及时发现并查明原因予以排除,不然就会延误机遇,扩展毛病,变成焚毁电动机的重大事故。
Noise and odor are the abnormal operation of the motor. It is necessary to find out the cause in time to eliminate the malfunction. Otherwise, it will delay the opportunity, expand the malfunction, and become a major accident of burning the motor.
6.确保起动设备正常作业
6. ensure the normal operation of the starting equipment.
电动机起动设备技能状况的好坏,对电动机的正常发动,有着决定性的效果。不然,很简单在电动机还没有进入正常作业状况就焚毁。实践证明,绝大多数焚毁电动机的原因都在起动设备上。
The quality of motor starting equipment skill has a decisive effect on the normal starting of the motor. Otherwise, it is very simple that the motor will burn down before the motor has entered normal operation. Practice has proved that most of the reasons for burning motor are on starting equipment.
起动设备的保护首要是清洁和紧固。触摸器触点不清洁会使触摸电阻增大,引起发热焚毁触点,形成缺相而焚毁电动机。触摸器吸合线圈的铁芯锈蚀及积尘,会使线圈吸合不严,并宣布激烈噪音,增大线圈电流,焚毁线圈而引发毛病。
The protection of starting equipment is primarily cleaning and fastening. The unclean touch points of the toucher will increase the touch resistance and cause the heat to burn the contacts, forming a lack of phase and burning the motor. The rust and dust on the iron core of the coil sucked by the toucher will make the coil sucked loosely, and announce the intense noise, increase the coil current, and cause trouble by burning the coil.
电气控制设备应放在枯燥.通风和便于操作的位置,并要定期除尘,紧固各接线螺钉,查看触摸器触点是否触摸杰出牢靠,机械部位是否活络.精确,使其坚持杰出的技能状况,然后确保顺畅发动而不烧坏电动机。
Electrical control equipment should be placed in a dry, ventilated and easy-to-operate position, and regular dust removal, tightening the wiring screws, to see if the toucher contacts touch outstanding solid, mechanical parts are flexible, accurate, so that it adheres to outstanding skills, and then ensure smooth start without burning the motor.
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