Difference between revisions of "Dosing Units"

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[[Category:Dosing]]{{Knoppen}}  
[[Category:Dosing]]{{Knoppen}}  
[[File:Dosing units.jpg|thumb|right|Dosing Units]]
[[File:Dosing units.jpg|thumb|right|Dosing Units]]
'''Dosing Unit''' is meant to dose a chemical into water. The chemicals can be chlorine for fresh water systems, corrosion inhibitors for main engine cooling water, pH adjustment of fresh water etc.
[[File:Dosing_Units_01.jpg|thumb|right|Dosing Units outline]]
'''Dosing Units''' are the result of meticulous design work: maximum attention has been paid to ease of use and reliability. The control unit is based on a microprocessor, which makes programming very flexible, and a motorised screw controlled by inverter, thus ensuring high performance. An important feature of this equipment is the ability to directly set the dosing percentage. It does not require maintenance and offers long-term reliability.


The unit consists of a dosing pump, a control cabinet, an injection valve and a container for the chemical. The container is equipped with a low-level alarm which stops the pump in case chemical runs out, a suction valve and a manual agitator. All components are mounted on a stable steel frame for easy installation.


The most common application is that the dosing unit is being used to prechlorinate or pH-adjust fresh water, prechlorinate evaporated water or bunker water, on its way to fresh water holding tank, and to rechlorinate water before it is distributed. The prechlorination systems are normally controlled by flow meters in bunker water flow line and evaporated water flow line respectively. This ensures enough chlorine dosed into the actual water flow in the water line proportionately.
==History==
* 2006 – Ducane R&D Pty Ltd conceived the idea of a device that can store wastewater and release it in large batches to replace the drain clearing action of large volume toilet flushes.
* 2010 – After much prototyping and development the devices are offered for sale in Australia, New Zealand and the United Kingdom under the name Drainwave.




==Features==
==Performance==
* Corrosion inhibits chemical for main engine cooling water
Independent testing has shown that the use of an SDU allows for the use of low flush toilets using as little as 0.8 L to push general waste solids more than 25 metres along a typical wastewater drainpipe. One report showed that the maximum distance that a water saving 3 litre flush toilet can push solids was 10 metres after about 10 consecutive flushes, with the addition of an SDU this increased to about 20 metres on the first flush and past 25 metres with a second flush.
* pH-adjust water
 
* Chlorinate fresh water
An advantage of the SDU is that it can use more than just the toilet wastewater to clear the drains. This will keep drains clear of solids and prevent drainline blockages from occurring more effectuvely than.
* Easy installation and operation
 
 
==Video==
<youtube>H0UkUmzhydo</youtube>

Latest revision as of 12:18, 3 October 2013

Dosing Units
Dosing Units outline

Dosing Units are the result of meticulous design work: maximum attention has been paid to ease of use and reliability. The control unit is based on a microprocessor, which makes programming very flexible, and a motorised screw controlled by inverter, thus ensuring high performance. An important feature of this equipment is the ability to directly set the dosing percentage. It does not require maintenance and offers long-term reliability.


History

  • 2006 – Ducane R&D Pty Ltd conceived the idea of a device that can store wastewater and release it in large batches to replace the drain clearing action of large volume toilet flushes.
  • 2010 – After much prototyping and development the devices are offered for sale in Australia, New Zealand and the United Kingdom under the name Drainwave.


Performance

Independent testing has shown that the use of an SDU allows for the use of low flush toilets using as little as 0.8 L to push general waste solids more than 25 metres along a typical wastewater drainpipe. One report showed that the maximum distance that a water saving 3 litre flush toilet can push solids was 10 metres after about 10 consecutive flushes, with the addition of an SDU this increased to about 20 metres on the first flush and past 25 metres with a second flush.

An advantage of the SDU is that it can use more than just the toilet wastewater to clear the drains. This will keep drains clear of solids and prevent drainline blockages from occurring more effectuvely than.


Video