发明名称 |
Process and plant for desalination of salt water |
摘要 |
In a multi-stage desalination process, the pre-heated recirculated feed stream is heated in brine heater 1 and then released to flash in first desalination stage via valve 3. The feed stream is flashed through a series of desalination zones 4, the steam condensing on tubes 5 cooled by the recirculated feed stream. Product water is collected in water trough 6, and flashes down between stages to heat rejection stage(s) 7. Feed stream is recirculated by pumps 8 through desalination and heat rejection zones. Non-condensible gases are extracted by ejectors 9. Condensing sections of heat exchange rejection stages are cooled by sea water 11. Warm sea water is recycled <I>via</I> deaerator 12 and make up pump 13. The thermal recycle stream may be a portion of the product stream, a portion of the depleted feed stream or the feed stream before it is supplied to the first heat exchange zone. |
申请公布号 |
GB2369783(B) |
申请公布日期 |
2003.07.09 |
申请号 |
GB20010017455 |
申请日期 |
2001.07.18 |
申请人 |
* PB POWER LTD;* PB POWER LTD;* PBC INTERNATIONAL, INC. |
发明人 |
PAUL MICHAEL * WILLSON;GEORGE ANDREW * ATKINSON |
分类号 |
B01D3/06;(IPC1-7):B01D5/00;B01D1/26;C02F1/04;C02F1/06 |
主分类号 |
B01D3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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