關(guān)閉的情況下長期運轉(zhuǎn) 5) 6)、使用稀油潤滑，要定期檢查油位；油脂潤滑的深溝球軸承不需要維護(hù)。
7)、檢查聯(lián)軸器上的彈性元件，一旦磨損，應(yīng)立即更換；
8)、如果密封、冷卻、潤滑液不是用工作介質(zhì)，必須保證使用的液壓比進(jìn)口壓力高1．0～2.0巴。
3、停止：
1)、泵停止運轉(zhuǎn)時，先關(guān)閉出口閥，然后切斷電源：
2)、關(guān)閉輔助管路。泵的軸封即使在停機狀量也要用密封潤滑油：
3)、在冰凍或長期停止使用時，應(yīng)排除泵及管路中的介質(zhì)，以免冰裂 4)、當(dāng)輸送的介質(zhì)為對健康有害的液體時 |
additionally be evacuated(a vacuum must
be created).
2. Running:
1) . As soon as the pump
starts to deliver this can be recognized by the rising gauge pressure slowly
open the delivery gate valve fully.
2). All additional
connections for cooling, heating, lubrication irrigation or sealing liquid etc, 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 case 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 tempera-ture should be
below 1O0℃.
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 due 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 event 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 drecontaminated. When draining the edium see to
it that there is no risk to persons or the environment.
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