公开(公告)号：US5800629A

公开(公告)日：1998-09-01

申请号：US812273

申请日：1997-03-06

申请人： Jerome H. Ludwig ,  Myron Shenkiryk ,  Dan Temple ,  Edward Fyfe

发明人： Jerome H. Ludwig ,  Myron Shenkiryk ,  Dan Temple ,  Edward Fyfe

IPC分类号： B08B9/027 ,  B08B3/14 ,  B08B9/02 ,  B08B9/032 ,  C23G3/04 ,  E03B7/09 ,  C23G1/02 ,  C23G1/14 ,  C23G5/02

CPC分类号： B08B9/032 ,  C23G3/04 ,  E03B7/006

摘要： A process for pipe system cleaning and in-line treatment of spent pipe system cleaning solution prior to disposal. A cleaning solution is added to a fouled pipe system to clean the pipe system of scale or deposits. The spent cleaning solution is recirculated through the cleaned pipe system and a treatment agent is added to the recirculating spent cleaning solution. The treatment agent is recirculated until the spent cleaning solution is environmentally safe for disposal. The in-line treatment process minimizes the volume of treated spent cleaning solution and minimizes the time required to treat the spent cleaning solution.

摘要翻译： 废弃管道系统清洗液处理前的管道系统清洁和在线处理流程。 将清洁溶液添加到污垢管道系统中以清洁管道系统的垢或沉积物。 废清洁溶液通过清洁的管道系统再循环，并将处理剂添加到再循环的废清洁溶液中。 处理剂再循环，直到废清洁溶液对环境无害化处理。 在线处理过程使处理过的清洁溶液的体积最小化并且最小化处理用过的清洁溶液所需的时间。

公开(公告)号：US5895763A

公开(公告)日：1999-04-20

申请号：US838174

申请日：1997-04-16

申请人： Craig Edstrand ,  Edward Fyfe ,  Jerome H. Ludwig ,  Myron Shenkiryk ,  Dan Temple

发明人： Craig Edstrand ,  Edward Fyfe ,  Jerome H. Ludwig ,  Myron Shenkiryk ,  Dan Temple

IPC分类号： B08B9/02 ,  C02F5/08 ,  C23G1/02 ,  G01N35/00 ,  B08B3/00 ,  B08B9/03

CPC分类号： B08B9/032 ,  C02F5/08 ,  C23G1/02 ,  Y10T436/12

摘要： A method for controlled removal of carbonate blockage from interior walls of water conduit systems having substantial reduction in flow capacity. A section of the system to be cleaned is isolated and an aqueous liquid is circulated to establish baseline liquid flow rates. An acidic cleaning composition which removes the blockage but which generates carbon dioxide gas is then added under controlled conditions to a circulating aqueous cleaning solution. The fluid flow rates and pH are monitored throughout treatment. Adjustments are made if necessary to maintain a controlled amount of carbon dioxide gas liberated. The aqueous acid cleaning solution is circulated in an open loop system with continued addition of acid until the outflow rate decreases and once again equals the inflow rate. Substantial inorganic carbonate deposits are thus removed from water conduit systems while dangerous conditions due to excessive generation of carbon dioxide gas are avoided.

摘要翻译： 控制从具有大大降低流动能力的水管道系统的内壁去除碳酸盐堵塞的方法。 要清洁的系统的一部分被分离并且水性液体循环以建立基线液体流速。 然后在控制条件下将循环的含水清洗溶液加入去除堵塞而产生二氧化碳气体的酸性清洗组合物。 在整个治疗过程中监测流体流速和pH值。 如有必要进行调整，以维持释放出的受控量的二氧化碳气体。 酸性清洗溶液在开环系统中循环，继续加入酸直到流出速率降低，并再次等于流入速率。 因此，避免了由于过量产生二氧化碳气体引起的危险状况，因此将大量无机碳酸盐沉积物从水管道系统中除去。