b)．聯(lián)軸器與泵機(jī)組是否校正；
C)．管路是否按要求連接；
d)．手是否能容易地轉(zhuǎn)動(dòng)轉(zhuǎn)子；
e)．是否所有軸承都有良好的潤(rùn)滑。
2)、起動(dòng)前關(guān)閉出口閥，用介質(zhì)灌注排盡泵和管路內(nèi)的空氣。吸人狀況時(shí)，用泵體上部的螺塞排氣。在倒灌時(shí)泵也須排空；
2、運(yùn)行：
1)、當(dāng)壓力表壓力升高，慢慢打開出口閥；
2)、打開所有輔助管路，并檢查流量；
3)、泵是填料密封運(yùn)行時(shí)，填料函處允許有多少量，滴水，輕輕壓緊填料壓蓋至少量滴水。
4)、為防止介質(zhì)升溫，泵不能在出口閥門關(guān)閉的情況下長(zhǎng)期運(yùn)轉(zhuǎn)；
5)、當(dāng)周圍的環(huán)境溫度達(dá)到30℃時(shí)，軸承溫度不能超過(guò)90℃，當(dāng)溫度再升高量，軸承溫度最多不應(yīng)超過(guò)100℃；
6)、使用稀油潤(rùn)滑，要定期檢查油位；油脂潤(rùn)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(rùn)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(yùn)轉(zhuǎn)時(shí)，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(jī)狀量也要用密封潤(rùn)滑油；
3)、在冰凍或長(zhǎng)期停止使用時(shí)，應(yīng)排除泵及管路中的介質(zhì)，以免凍裂。
4)、當(dāng)輸送的介質(zhì)為對(duì)健康有害的液體時(shí)，應(yīng)將泵和管路內(nèi)介質(zhì)盡快排盡。
說(shuō)明： |
Samely, for the pump set with common bedplate.
Fit the pre- assembled set with foun- dation bolts loosely inserted in the cut-
outs in the foundation and align. There must be a 4- 5cm gap between the top of
the foundation and the bottom of the baseframe. Precisely align the set using
the adjusting screws and check alignment on the coupling. Others you can refer
to the above mention methods.
1. Starting:
1) . Before starting up the
pump make sure that the following requirements have been checked and fulfilled.
a) . Has the pump been
firmly bolted to the base/foundation?
b) . Have the coupling and
pump unit been aligned as specified?
c). Are the pipes properly
fitted?
d). Can the unit be easily
rotated by hand at the coupling? (Carry
out at least one full rotation)
e) . Has lubrication been
provided for oil -lubricated bearings?
2) Before the pump is
started up, it and the pipes must be vented and filled with the liquid 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 case
of
suction operation the upum must 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 temperature should be below 1O0℃.
6). If the pump features
oil-lubricated
|