IWAKI PUMPS FW-20H, Инструкция по эксплуатации

Страница: 20 / 44

20
Degassing
Gas bubbles are generated when a strong acid is fed into the reaction tank or liquid is transferred through a
narrow tube. If such bubbles enter the bellows, the pump runs dry, increasing stroke rate or disturbing liquid
transfer. Take a proper step for degassing.
3ODQ$,QVWDOODEDIIOHWRUHPRYHJDVEXEEOHV
In flooded suction application
,QVWDOODEDIIOHLQDRYHUIORZWDQNWRVHSDUDWHDLU
IURPWKHOLTXLG
In suction lift application
,QVWDOODEDIIOHWRWKHERWWRPRIWKHUHDFWLRQWDQN
$QGWKHQSODFHWKHHQGRIVXFWLRQOLQHXQGHUWKHEDI
IOHWRVXFNOLTXLGRQO\
3ODQ%,QVWDOODQDXWRPDWLFYDOYH
Periodic degassing
3URJUDPDQDXWRPDWLFYDOYHWRRSHQSHULRGLFDOO\
UHJDUGOHVVRIGU\UXQQLQJ)RUH[DPSOHWKHYDOYH
RSHQVIRUWHQVHFRQGVHYHU\WZRPLQXWHV
*
6RPHILOWHULQJDUHDPD\EHWRRVPDOOWRUHOHDVHDLU
6HOHFWDVXLWDEOHILOWHUVL]H
3URJUDPDQRSHQWLPHDFFRUGLQJWRWKHV\VWHPSHUIRUP
DQFH
Pinpoint degassing
,QVWDOODQDLUGHWHFWRUDWWKHSXPSLQOHWDQGVHWWKH
DXWRYDOYHWRRSHQWLPHO\
$QRWKHUGHWHFWRUDWWKHSXPSRXWOHWZLOOKHOSGHWHFW
EHOORZVUXSWXUH
Bubbles go up.
Baffle
Overflow
tank
P
Reaction tank
Reaction
tank
Bubbles are
sucked.
Baffle
Prevents bubbles.
P P
H
2
O
2
,O
3
,H
2
O
Air vent line
Auto valve
Filter
Pump
Overflow tank
Heater
Reaction
tank
P
/LTXLGOLQHSLSLQJ