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Laser scanner provides 3D profiles of rotary pistons
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Product news
:25/' PUMPS
December 2011
Laser scanner provides 3D Dewatering range profiles of rotary pistons includes cooling system A manufacturer of universal 3D measuring machines is using Micro-Epsilon’s laser profile scanners and laser displacement sensors to measure the surface profiles and position of rotary pistons. In rotary piston pumps, as the rotary pistons are responsible for the flow of the delivery medium, the specified geometrical shape of the pistons must be extremely precise and accurate. Two rotary pistons need to mesh exactly with one another as the pump rotates, with movement of the pistons terminating just before the wall housing. The life of the pump can therefore only be maintained if the piston surface fits precisely with the pump housing. This means
that the whole of the piston surface needs to be measured and compared with the target shape to very strict tolerances. Qsigma GmbH based in Kassel, Germany, has developed a universal 3D measuring machine for these types of applications and Micro-Epsilon’s scanCONTROL 2700 laser profile scanner with a 50 mm measuring range is used to record the shape or profile of the piston’s surface. For larger components, the profile scanner can be traversed vertically using a linear motion system. In addition, an optoNCDT 2200 laser displacement sensor from Micro-Epsilon with a 200 mm measuring range is integrated to the Qsigma measuring machine in order to determine the precise position of the component. The optoNCDT 2200 sensor acquires 10,000 distance values every second, operating at a resolution of 3 μm. The piston rotates during measurements. Only five seconds are required for an automatic inspection of the piston. After successfully scanning the surface geometries, the data is compared with those of the target object. In addition to rotary pistons, the system can also be used to measure other rotationally symmetrical objects.
Micro-Epsilon’s 2700 laser profile scanner.
The submersible waste water pumps can transport solids up to a particle size of 55 mm, depending on the model. Pump body and rotor are made of grey cast and the shaft is made of stainless steel. Pumps are www.worldpumps.com
The IC series submersible dewatering pump can be installed either in dry-pit or wet-pit configuration. The pumped liquid inside the water-cooling jacket flows around the stator housing, transmitting motor heat during operation. As a result, the motor offers high efficiency, low power
consumption and an extended life time. The submersible series can also be installed on the ground surface or in-line with its piping system providing nonsubmerged operation. In this case, the pump is usually equipped with an extra check valve which is installed in the flow entry of the pump bottom. The submersible pumps also feature an outer cover made of stainless steel SUS304 and a shaft seal system which includes a silicon carbide mechanical seal and a set of oil seals, thus helping improve durability. The IC series is suitable for agriculture field irrigation, driving water circulation systems, supplying water to aquaculture farming and dewatering of construction sites, amongst other applications.
The IC range of submersible pumps.
www.hcppump.com.tw
Booster set range extended Grundfos has introduced a new range of single-phase pre-packaged CMB/CMBE booster sets, extending its full booster set range.
www.micro-epsilon.co.uk
Wastewater pumps for agriculture German agriculture pump manufacturer Zuwa has introduced a new series of wastewater pumps that have been especially designed for fermentation plants and other hazardous areas.
Taiwanese submersible pump specialist HCP Pump Manufacturer Co Ltd has developed a new range of submersible dewatering pumps that incorporate a built-in watercooling system.
available with a flow rate from 225 up to 700 l/m with a pump head of 8 to 12 m. The pumps are ATEX-approved for use in potentially explosive atmospheres such as biogas plants, where the submersible wastewater pumps can be used to remove condensed water from the dead well and return it to the fermenter. www.zuwa.de
These new models are based around the Grundfos CM stainless steel booster pumps and are suitable for use in applications that require clean water to be delivered from a cold water storage tank, such as when boosting to pressurised hot and cold water systems, irrigation systems and above ground storage tanks and water transfer applications. The CMB/CMBE booster sets cover flow rates of up to 5 m3/h at 3 to 4.5 bar. They have a compact size, have built-in motor protection and are suitable for potable water, with major components UK
Grundfos’ CMB/CMBE booster sets.
Water Regulations Advisory Scheme (WRAS) approved. The range is available as fixed speed or variable speed units, and uses CM/CME pumps that come complete with a PM2 Pressure Manager on fixed speed variants, and an optional 8 l vessel. Variable speed options are fitted with an integral sensor and gauge. www.grundfos.com
Product news
:25/' PUMPS
December 2011
Laser scanner provides 3D Dewatering range profiles of rotary pistons includes cooling system A manufacturer of universal 3D measuring machines is using Micro-Epsilon’s laser profile scanners and laser displacement sensors to measure the surface profiles and position of rotary pistons. In rotary piston pumps, as the rotary pistons are responsible for the flow of the delivery medium, the specified geometrical shape of the pistons must be extremely precise and accurate. Two rotary pistons need to mesh exactly with one another as the pump rotates, with movement of the pistons terminating just before the wall housing. The life of the pump can therefore only be maintained if the piston surface fits precisely with the pump housing. This means
that the whole of the piston surface needs to be measured and compared with the target shape to very strict tolerances. Qsigma GmbH based in Kassel, Germany, has developed a universal 3D measuring machine for these types of applications and Micro-Epsilon’s scanCONTROL 2700 laser profile scanner with a 50 mm measuring range is used to record the shape or profile of the piston’s surface. For larger components, the profile scanner can be traversed vertically using a linear motion system. In addition, an optoNCDT 2200 laser displacement sensor from Micro-Epsilon with a 200 mm measuring range is integrated to the Qsigma measuring machine in order to determine the precise position of the component. The optoNCDT 2200 sensor acquires 10,000 distance values every second, operating at a resolution of 3 μm. The piston rotates during measurements. Only five seconds are required for an automatic inspection of the piston. After successfully scanning the surface geometries, the data is compared with those of the target object. In addition to rotary pistons, the system can also be used to measure other rotationally symmetrical objects.
Micro-Epsilon’s 2700 laser profile scanner.
The submersible waste water pumps can transport solids up to a particle size of 55 mm, depending on the model. Pump body and rotor are made of grey cast and the shaft is made of stainless steel. Pumps are www.worldpumps.com
The IC series submersible dewatering pump can be installed either in dry-pit or wet-pit configuration. The pumped liquid inside the water-cooling jacket flows around the stator housing, transmitting motor heat during operation. As a result, the motor offers high efficiency, low power
consumption and an extended life time. The submersible series can also be installed on the ground surface or in-line with its piping system providing nonsubmerged operation. In this case, the pump is usually equipped with an extra check valve which is installed in the flow entry of the pump bottom. The submersible pumps also feature an outer cover made of stainless steel SUS304 and a shaft seal system which includes a silicon carbide mechanical seal and a set of oil seals, thus helping improve durability. The IC series is suitable for agriculture field irrigation, driving water circulation systems, supplying water to aquaculture farming and dewatering of construction sites, amongst other applications.
The IC range of submersible pumps.
www.hcppump.com.tw
Booster set range extended Grundfos has introduced a new range of single-phase pre-packaged CMB/CMBE booster sets, extending its full booster set range.
www.micro-epsilon.co.uk
Wastewater pumps for agriculture German agriculture pump manufacturer Zuwa has introduced a new series of wastewater pumps that have been especially designed for fermentation plants and other hazardous areas.
Taiwanese submersible pump specialist HCP Pump Manufacturer Co Ltd has developed a new range of submersible dewatering pumps that incorporate a built-in watercooling system.
available with a flow rate from 225 up to 700 l/m with a pump head of 8 to 12 m. The pumps are ATEX-approved for use in potentially explosive atmospheres such as biogas plants, where the submersible wastewater pumps can be used to remove condensed water from the dead well and return it to the fermenter. www.zuwa.de
These new models are based around the Grundfos CM stainless steel booster pumps and are suitable for use in applications that require clean water to be delivered from a cold water storage tank, such as when boosting to pressurised hot and cold water systems, irrigation systems and above ground storage tanks and water transfer applications. The CMB/CMBE booster sets cover flow rates of up to 5 m3/h at 3 to 4.5 bar. They have a compact size, have built-in motor protection and are suitable for potable water, with major components UK
Grundfos’ CMB/CMBE booster sets.
Water Regulations Advisory Scheme (WRAS) approved. The range is available as fixed speed or variable speed units, and uses CM/CME pumps that come complete with a PM2 Pressure Manager on fixed speed variants, and an optional 8 l vessel. Variable speed options are fitted with an integral sensor and gauge. www.grundfos.com