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Prevent film property damage |
| Publisher: Suzhou Huanke Pharmaceutical Equipment Technology Co., Ltd Time：2023-03-07 15:42:54 Number of clicks：289 Close |
| 1, prevent the damage of film performance The new reverse osmosis membrane elements are usually stored in sealed plastic bags soaked with 1%NaHSO3 and 18% glycerol solution. In the case of plastic bags not broken, stored for about 1 year, will not affect its life and performance. When the plastic bag opened, should be used as soon as possible, so as to avoid NaHSO3 oxidation in the air, have adverse effects on the components. Therefore, the membrane should be opened as far as possible before use. After testing the reverse osmosis equipment, we used two methods to protect the film. The test machine runs for two days (15 ~ 24h), and then adopts 2% formaldehyde solution for maintenance; Or after operation for 2 ~ 6h, use 1% NaHSO3 water solution for maintenance (the air in the equipment pipeline should be drained to ensure that the equipment does not leak, close all the inlet and outlet valves). Both methods can get satisfactory results. The first method is more expensive and is used for long periods of idle time, while the second method is used for short periods of idle time. 
After normal operation for a period of time, the membrane element will be contaminated by suspended matter or insoluble matter that may exist in the water. Under standard conditions, the system performance is reduced by 10%, or scaling or fouling is obviously occurring, should be cleaned in time. Regular water flushing and chemical dosing cleaning can restore the performance of the membrane element and prolong the service life of the membrane element. The system shall be flushed every 5 days during the short period when the system stops running, and the valve shall be closed after flushing to prevent scaling and blockage. If the system is out of service for a long time (more than 30 days), add 1% sodium bisulfite solution to prevent bacterial reproduction. |
Suzhou Huanke Pharmaceutical Equipment Technology Co., Ltd.
Suzhou Chenglang Cleaning Equipment Co., Ltd.
Contact: Zhang Gong
Tel：15150275957
Email：285145232@qq.com
Company website： http://www.szhuanke.com
Add：No. 366, Jinxian Road, Jinjiaba Town, Wujiang District, Suzhou City, Jiangsu Province
Su ICP No. 2022043966-1
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