Chemical Engineering March 2017 - 68

Instrumentation & Control 2017 Special Advertising Section
High-precision electric actuators
AUMA offers high-precision compact actuators for heating,
cooling, and metering applications
A
UMA's compact electric actuator
ranges offer precise, robust
and reliable flow control solutions
even under difficult process conditions.
Their compact design makes
them ideally suitable for space constraints
and small valves. Typical applications
include demanding
temperature control systems
in the food and chemical industries,
and fluid meter -
ing duties.
AUMA offers two families
of compact actuators: Basic
Range and Smart Range. Basic
Range SBA linear actuators and
ED/EQ part-turn actuators offer
all the essential functions, including feedback
signals, in robust packages. SBA linear
actuators provide high positioning accuracy
and are suited to modulating applications.
AUMA's Smart Range includes SDL/SDG
linear actuators, SVC globe valve actuators
and SGC part-turn actuators. All have variable-speed
motors that provide soft starts
AUMA
SDL linear
actuators provide
high positioning accuracy for
modulating applications
and stops for gentle
treatment of mechanical
components, and
allow variable-speed
operating profiles to
minimize pressure
surges and cavitation.
Operating parameters
can be set via software,
and Modbus RTU
and Profibus DP interfaces
are available.
The SDL/SDG actuators
feature low
energy consumption,
making them particularly
suited to remote
sites and solar PV power systems. They are
also insensitive to voltage fluctuations.
AUMA's compact linear actuators cover
thrusts of 0.6-25 kN and strokes of 35-
300 mm. Part-turn actuators are available
for torques of 25-1,000 Nm. Globe valve
actuators offer torques of 10-100 Nm, with
strokes from 60-70 mm. www.auma.com
AI helps automate thermal power plants
F
ull automation of thermal power plants
with the help of artificial intelligence
(AI) took a step forward earlier this year
when Mitsubishi Hitachi Power Systems,
Ltd. (MHPS; Yokohama, Japan; www.mhps.
com) announced that it had successfully
tested an AI-based solution for combustion
tuning in boilers. The trial at Taiwan
Power Co.'s Linkou Thermal Power Plant
(New Taipei, Taiwan) showed results comparable
to those a highly experienced engineer
could achieve, MHPS said.
By analyzing large volumes of complex
digital data acquired during boiler operation,
AI-based boiler control systems can
help to minimize operating costs and detect
problems in good time, MHPS said.
Combustion processes in thermal
power plants are optimized by adjusting
parameters including flue-gas emission
characteristics, combustion balance,
steam temperature, and boiler efficiency.
During the tests in Taiwan, the AI system
proposed parameters that were essentially
no different from those set by an experienced
engineer, MHPS said.
MHPS will continue to enhance the AILinkou
Power Plant, Taiwan, where
MHPS has been testing the new
combustion control technology
based combustion tuning system at the
Linkou power plant. Combustion tuning
is a core element of a comprehensive system,
currently under development, that
will eventually enable AI-controlled operation
of thermal power plants.
MHPS previously delivered three sets
of boilers and steam turbines, each rated
at 800 MW, to the supercritical coal-fired
plant at Linkou. The first set has already
started commercial operation, and the
second is scheduled to go into service in
the next month or so. ■
This turbopump is
small but mighty
The HiPace 30 from Pfeiffer
Vacuum performs strongly
he HiPace 30 turbopump is the only
turbopump on the market in its size
class offering pumping speeds of 32 l/s,
says manufacturer Pfeiffer Vacuum. Its
small installation footprint and low level of
vibration make this pump particularly suitable
for integration into compact analytical
systems such as benchtop mass spectrometers,
small electron microscopes, and leak
detectors. Furthermore, weighing as little as
2 kg overall makes the HiPace 30 ideal for
mobile applications.
The sophisticated rotor design of the
HiPace 30 achieves high gas throughputs
and very good compression of light gases.
T
At just 2 kg, the HiPace 30 by
Pfeiffer Vacuum is ideal for
small and mobile systems
This ensures the low residual gas background
that is desirable for mass spectrometry
applications.
The HiPace 30 is designed with a socalled
hybrid bearing. This combination of
ceramic ball bearings on the backing vacuum
side and permanently magnetic radial
bearings on the high vacuum side makes
for a particularly sturdy bearing design. The
pumps therefore have a long life, with a
maintenance interval of approximately four
years.
68
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
www.pfeiffer-vacuum.com
MARCH 2017
http://www.auma.com http://www.mhps http://www.pfeiffer-vacuum.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering March 2017

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