Swivel-mounted impounding shield for larger canal and canal network management

The Problem

Mod­ern canal net­works should be man­aged accord­ing to the require­ments of the oper­a­tor. An increas­ing­ly impor­tant fac­tor is the cost-per­for­mance ratio. Most of the cur­rent­ly avail­able sys­tems pro­vide very expen­sive over­all solu­tions which sel­dom allow for effec­tive and inex­pen­sive tech­ni­cal­ly inde­pen­dent par­tial instal­la­tions. It is not always appre­ci­at­ed that the tech­nol­o­gy nec­es­sary for over­all solu­tions often involves large con­struc­tions. Suc­ces­sive expan­sion is a much bet­ter option than an
“all or noth­ing“ decision.

The Solution 

The Hydro­Guard^® flush­ing and impound­ing pro­tec­tion is not only a prod­uct but also a sys­tem for the com­plete man­age­ment of large canals, whole canal net­works as well as for indi­vid­ual canal sections.

The Hydro­Guard^® flush­ing and impound­ing pro­tec­tion pro­vides inex­pen­sive par­tial solu­tions with­out com­pro­mis­ing on func­tion­abil­i­ty. The sys­tem per­forms many dif­fer­ent tasks and can be eas­i­ly adapt­ed and/or mod­i­fied to meet the oper­a­tional require­ments for the man­age­ment of sin­gle canals or whole net­works. The main areas of appli­ca­tion include con­trolled impound­ing and stor­age process­es as well as the tem­po­rary deten­tion of dis­charges with sub­se­quent uti­liza­tion of the impound­ed water for flush­ing the canals. An adjustable bot­tom out­let open­ing enables a con­tin­u­ous trans­fer of the pol­lu­tion load to the treat­ment plant even dur­ing impounding.

The Hydro­Guard^® flush­ing and impound­ing pro­tec­tion offers enor­mous sav­ings poten­tial in tech­nol­o­gy (up to 50%) and espe­cial­ly in the sim­pler and safer con­struc­tion design (up to 90%) when com­pared with oth­er systems.

The System 

In its non-oper­a­tional posi­tion above the canal flow cross sec­tion, the Hydro­Guard^® flush­ing and impound­ing pro­tec­tion is eas­i­ly acces­si­ble for inspec­tion and main­te­nance. From this posi­tion it can swiv­el in or out from above into the canal sec­tion at any posi­tion required. The spe­cial design of the impound plate is suit­able for both under­flow and flow-over.

Acti­va­tion is car­ried out by a local PLC con­trol with inte­grat­ed mea­sur­ing and reg­u­lat­ing tech­nol­o­gy based on a pro­gram of oper­a­tion. Ascer­tain­ing respec­tive head­wa­ter and back­wa­ter lev­els is stan­dard. Addi­tion­al data such as water quan­ti­ty and qual­i­ty can be includ­ed for com­pre­hen­sive pro­gram­ming and man­age­ment. Any con­nec­tion required to a mas­ter or cen­tral con­trol sys­tem is standard.

The Advantages

• flush­ing of canals
• pre­ven­tion and avoid­ance of deposits
• elim­i­na­tion of odor pollution
• even­ly dis­trib­uted feed­ing of treat­ment plant through reg­u­lar flushing
• long-reach­ing flush due to large flush­ing vol­umes up to 1.5 km
• suit­able for flow-over or underflow
• robust con­struc­tion from stain­less steel and oth­er cor­ro­sion-free materials
• infi­nite­ly vari­able discharge
• man­age­ment of water qual­i­ty and quan­ti­ty, e.g. flow to WWTP or dis­charge flow

Cost effectiveness

• clear sav­ings com­pared to con­ven­tion­al sys­tems: approx. 50 % in tech­nol­o­gy and approx. 90 % in construction
• can be used as sin­gle facil­i­ty with expan­sion option
• suit­able for retrofit
• adapt­able to var­i­ous canal sections
• small con­struc­tion height