5)、当周围的环境温度达到30℃时,轴厚温度不能超过90℃,当温度再升高,轴承温压最多不应超过100℃:
6)、使用稀油润滑,要定期检查油位;油脂润滑的深沟球轴承不需要维护。
7)、检查联轴器上的弹性元件,一旦磨损,应立即更换:
8)、如果密封、冷却、润滑液不是用工作介质,必须保证使用的液压比进口压力高1.0~2.0巴。
3、停止:
1)、泵停止运转时,先关闭出口阀,然后切断电源:
2)、关闭辅助管路。泵的轴封即使在停机状态也要用润滑油密封:
3)、在冰冻或长期停止使用时,应排除泵及管路中的介质,以免冻裂。
4)、当输送的介质为对踺康有害的液体时,应将泵和管路内介质尽快排尽。
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to be
pumped. In the case of both gravity feed and suction operation venting must be
carried out via the hole on the upper suction elbow. In the ease of suction
operation the pump must additionally be evaeuated(a vacuum must be created).
2. Running:
1 ) . As soon as the
pump starts to deliver this can be recognized by the rising gauge presstire
slowly open the delivery, gate valve fully.
2). All additional
connections for cooling, heating, lubrication irrigation or sealing liquid ete,
if fitted, must be opened fully or switched on and the flow must be checked.
3) . Screw homogenizenously the nuts on the pump packing gland so as to the
leakage of liquid is little, at the same time, pay more attention to the
packing ease temperature rising.
4) . Prolonged
operation against a closed shut- off element is not permitted in order to
prevent the medium handled from heating up.
5). At room temperatures of up to 30℃the bearing temperature should
not exceed 90℃. At higher room temperature the bearing temperature should be
below 100℃.
6) . If the pump features oil-lubricated
bearings, the correct oil level must be verified at regular.
7). If the flexible
coupling elements begin to show signs of wear, they should be replaced in clue
time.
8) . If the liquid for
sealing, cooling and lubricating is taken from an external source, the pressure
must be 1.0 to 2.0 bar higher than at the suction nozzle. The gland packing(if
the pump is fitted with one) should drip slightly during operation. The gland
should only be gently tightened.
3. Stopping
1 ). While stopping
the pump running, first turn off the brake valve on the discharge pipe passage
way.
2) . Close the auxiliary connections. The
shaft seal in pumps where the liquid is fed in under vacuum must also be
lubricated with sealing liquid during standstill.
3). In the eve.nt of
frost and/or prolonged shutdowns, the pump and if applicable the cooling
chambers must be drained or otherwise protected against freezing.
4) . Pumps handling
liquids posing health hazards must be dreeontaminated. When draining the edium
see to it that there is no risk to persons or the environment.
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