Cleaning vehicles | unitracc.com

Cleaning vehicles: <p>The high-pressure cleaning process utilizes different types of vehicles depending on the limiting conditions and site location [SteinD00].</p><div class="clearfix layout-row columns-4"><div class="layout-column first column-1"><p>(Image: Cleaning vehicles - High pressure flushing vehicle)</p></div><div class="layout-column column-2"><div><strong>High-pressure flushing vehicles</strong> are used for a hydro-dynamic cleaning of drains and sewers. They are equipped with two-axle, three-axle or four-axle chassis and have no suction capabilities.</div></div><div class="layout-column column-3"><div><div><p>(Image: Cleaning vehicles - Suction vehicle)</p></div></div></div><div class="layout-column last column-4"><div><strong>Suction vehicles</strong> serve …</div></div></div>
Cleaning vehicles – Advantages and Disadvantages: <p>(Table: Cleaning vehicles – advantages and disadvantages)</p>
Applications: <p>(Table: High-pressure cleaning vehicle applications)</p>
Vehicle components: <p>(Table: Comparison between high-pressure flushing vehicles and sewer and catch basin cleaning vehicle)</p>
Water collection: <div><p>The flushing water required for cleaning is taken from the water supply network via stand pipes.</p><p>A direct connection to a hydrant is prohibited. Generally, a permission under the Water Act and a specially equipped high-pressure flushing vehicle, e.g. in the form of filter ejectors, are required for the extraction of water from open bodies of waters.</p><div><div class="clearfix layout-row columns-3"><div class="layout-column first column-1"><div>(Image: HP flushing vehicle - water collection from an open water source)</div></div><div class="layout-column column-2">(Image: Water collection from …</div></div></div></div>
Combined flushing / vacuum unit
Suction hose reel: <div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><p>The suction hose reel is mounted on top of the storage tank. It is hydraulically operated and designed to lower and retrieve the suction hose from the manhole. The system is capable of providing sufficient vacuum for the suction of debris up to 25 m in depth.</p></div><div class="layout-column last column-2"><div><div>(Image: Suction hose reel of the "Super 2000" manufactured by Wiedemann & Reichhardt)</div></div></div></div><p/>
High-pressure hose reel: <div class="clearfix layout-row columns-3"><div class="layout-column first column-1"><p>Both reels are mounted on the storage tank and are hydraulically operated.</p><p>The smaller high-pressure hose is used for flushing small channels (laterals, etc.) and for the manual cleaning of surfaces using the hand operated high-pressure spray gun.</p></div><div class="layout-column column-2"><div>(Image: HP flushing vehicle "Super 2000" - Large HP hose reel)</div><div>(Image: HP flushing vehicle - Large HP hose reel)</div><div/><div/></div><div class="layout-column last column-3"><div>(Image: HP flushing vehicle "Super 2000" - Small HP hose reel)</div></div></div><p/>
Hose accessories: <div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><p>Aluminum suction tubes can include additional air vents used to maintain the air volume during deep applications. The damming flaps are used in combination with water reclamation technology to increase the water volume at the suction tube intake, particularly in low flow sewers. The hose guide is used to protect and guide the hose around corners and sharp edges.</p></div><div class="layout-column last column-2"><div><div>(Image: Suction tube, radial nozzle, hose guide)</div></div></div></div><p/>
Sludge tank: <p>The sludge tank is used for the temporary storage of the collected debris.</p><p>(Image: Sludge tank of the "Super 2000" made by Wiedemann und Reichhardt)</p>
Sludge tank coarse screen: <p>Mechanical coarse screen</p><div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><div>(Image: The mechanical coarse screen in the sludge tank of the "Super 2000" used to dewater and separate the coarse material.)</div></div><div class="layout-column last column-2"><div><div class="visible-web">(Video: Mechanical coarse screen dewaters and separates the coarse material in the sludge tank)</div></div><div class="visible-pdf">Video: Mechanical coarse screen dewaters and separates the coarse material in the sludge tank [FI-Wiede]. This element is only visible in the online version of the module.</div></div></div><p/>
Water tank and hydrocyclone: <div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><div><div>(Image: Water reservoir of the Wiedemann & Reichhardt made "Super 2000")</div></div></div><div class="layout-column last column-2"><div><div>(Image: Hydrocyclone - Wiedemann & Reichhardt Super 2000 cleaning vehicle)</div></div></div></div><p/>
Suction hose boom: <div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><div><div>(Image: HP flushing vehicle - suction hose boom)</div></div></div><div class="layout-column last column-2"><p>The 1.2 m long telescopic suction hose boom is centrally mounted on the vehicle, and is capable of rotating 90 degrees to the left and to the right of the back of the vehicle. This allows for the insertion of the suction and high-pressure hose directly into the manhole opening.</p></div></div><p/>
Remote control: <div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><div>(Image: Flushing vehicle – Remote control)</div></div><div class="layout-column last column-2"><div><div>(Image: Super 2000 Remote control sender unit)</div></div><div/><div><div><div>(Image: HP flushing vehicle remote control reciever unit)</div></div></div></div></div><p/>
Discharge systems
Axle load distribution in one and two tank systems: <div class="clearfix layout-row columns-2"><div class="layout-column first column-1"><div><p><strong>One tank system</strong></p><p>(Image: Mass distribution in a one-tank systems at the beginning of cleaning)</p><p>Axle load before the cleaning operation</p><p/><p>(Image: Mass distribution in a one-tank systems at the end of cleaning)</p><div><p>Axle load after the cleaning operation</p></div></div></div><div class="layout-column last column-2"><div/><div/><div/><div/><div/><div/><p><strong>Two tank system</strong></p><div><div><div><div><p>(Image: Mass distribution in a two-tank systems)</p></div></div></div></div></div></div><p/>
Criteria for the selection of the chassis and powertrain: <p>As there are many types of chassis and powertrains available, their selection is based on the final application of the cleaning vehicle. The cleaning equipment is powered by the vehicles main engine through an independent gearbox, or by an auxiliary power drive. Criteria for the selection of the chassis according to [KA 4/97]<sup>1</sup>:</p><ul><li> <p>Cost</p></li> <li> <p>Weight and power requirements (number of axles, engine power)</p></li> <li> <p>Application (external dimensions, turning radius)</p></li> <li> …</li></ul>
Criteria for the selection of the chassis and powertrain (2): <p/><ul><li> <p>Noise reduction (sound pressure level SPL <80 dB (A)) through the selection of engines with high torque outputs at low engine speeds.</p></li> <li> <p>Maneuverability can be improved through the use of a steerable leading or trailing axles.</p></li> </ul><p><span class="content-only unitracc-literature transformed-booklink">[KA 4/97]</span></p><div/><p/>
Criteria for the selection of the chassis and powertrain – Influential factors: <p>(Image: Criteria for the selection of the chassis and powertrain [Bild S&P GmbH])</p>
Economic analysis
Pumps
Hoses