国产精品无码AV无码,蜜臀久久久久久999草草,啊灬啊别停灬啊灬快点,美女露0的无挡写真

Your Position: Home > News > Industry News

Start-up steps of gear oil pump of coal mill oil filter

2019/8/1??????view:

  It is very important to start gear oil pump correctly, otherwise it will damage the pump. Here are some common knowledge before starting. Please pay attention to one.

  Next:

  I. Preparations for starting gear oil pump:

  1. To test whether the motor steering is correct (with the direction indicated on the pump body), the test time should be shorter so as not to cause dry wear and tear of the grinding parts caused by the internal rotation of the pump due to non-liquid lubrication.

  2. Open the exhaust valve to fill the whole pump body with liquid, and close the exhaust valve when it is full.

  3. Check whether all parts are normal.

  4. The high temperature type should be preheated at a rate of 50 C/h in order to ensure uniform heating of the components.

  2. Starting of gear oil pump:

  1. Close the pump outlet valve;

  2. Fully open pump inlet valve;

  3. Start the motor and observe whether the pump is running normally.

  4. Adjust the opening of the outlet valve to the required working conditions. If the user has a flow meter or pressure gauge at the outlet of the pump, the pump should operate at the rated points listed in the performance parameter table by adjusting the opening of the outlet valve. If the user does not have a flow meter or pressure gauge at the outlet of the pump, the motor and electricity of the pump should be measured by adjusting the opening of the outlet valve. Flow, so that the motor in the rated current operation, otherwise will cause the pump overload operation (that is, large current operation, until the motor burned out) adjustable outlet valve opening large and small and pipeline conditions related;

  5. Check the leakage of the shaft seal, and the leakage of the mechanical seal should be less than 3 drops per minute in normal time.

  6. Check the motor, bearing temperature rise is less than 80 C.

  Third, gear oil pump shutdown:

  1. Close the outlet pipe valve;

  2. Cut off the power supply;

  3. Close the inlet pipeline valve;

  4. If the gear oil pump is stopped for a long time, the liquid in the pump should be exhausted.


АⅤ资源中文在线天堂| 久久亚洲精品无码VA大香大香| 亚洲精品乱码久久久久久自慰| 国语自产偷拍精品视频偷| 99精品成人无码A片观看| 精品人妻系列无码人妻漫画| 扒开粉嫩小泬舌头伸进去| 精品欧美А∨无码视频在线观看| 国产JJIZZ女人多水免费| 精品亚洲一区二区三区在线播放| 老熟女高潮一区二区三区| 国产女人爽到高潮久久久| 丰满少妇被猛烈进入高清播放| 双人床上互动的动作| 午夜无码人妻AV大片色欲| 久久久久亚洲AV无码麻豆| 五月AV综合AV国产AV| 亚洲国产婷婷香蕉久久久久久| 精品熟女少妇AV免费观看| 国产精品白丝JK白祙喷水视频| 蜜桃成人无码AV在线观看一电影| 久久婷婷激情综合色综合俺也去| 成人做爰A片免费看网站| 日本一姐RAPPER潮水| 自己撅起来乖乖挨C烂H| 一女三男做2爱A片免费| 国产成年无码AV片在线韩国| 和尚吮她的花蒂和奶水视频| 午夜天堂AV久久久噜噜噜| 欧美熟妇大荫蒂高潮视频| 欧美精品色婷婷五月综合| AV香港经典三级级 在线| 老校长不戴套玩新婚老师| 成人精品一区日本无码网站| 最近中文字幕视频在线MV高清版| 宝贝我硬了~你含一下它| 中文字幕乱码人妻二区三区| 少妇性L交大片| 久久亚洲AV无码精品色午夜麻豆 | 国产大屁股喷水视频在线观看| 久久AV无码精品人妻出轨|