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열유속
측정센서
NEEDLE
TYPE HEAT FLUX SENSOR (NF-01-ATX)
NF-01-ATX
Needle
type Heat Flux and temperature Sensor
The NF-01-ATX needle type heat flux and temperature sensor is
used to perform continuous measurement of temperature and heat fluxes in furnace
walls. It is designed in particular as a tool for monitoring blast furnaces and
smelters. The same technology can be used to manufacture heat flux sensors for
different applications.
- Figure 1 Needle type heat flux (and
temperature) sensors applied as monitoring tool for blast furnace conditions
(1), (2), and (3): Removable high temperature heat flux sensor type HF01(4),
measurement and control system (5), alarm / warning system (6), steel shell
(water cooled) (7), graphite (also applicable in brick) (8), mortar (9),
semi-graphite (10).
- The sensors are part of furnace / smelter
monitoring systems and can be used to study energy balances as well as on-line
(continuous) detection of failures in water cooling failure or of process
overheating.
INTRODUCTION
- The NF-01-ATX has been designed for studies of the
energy balance of industrial blast furnaces and smelters. It has been applied
successfully in iron furnace safety systems as well as in a smelter for titania
slag production
- The main component, the actual sensor, is
incorporated in a fully stainless steel needle.
- This sensor can withstand temperatures up to
700 degrees C, as well as the aggressive chemical environment of a furnace.
Optionally the sensor temperature can be extended to 1000 degrees
C.
- The extension cable is made of
PVC.
- Sensor output consists of a heat flux signal
(microvolt analog signal) and type K thermocouple.
- NF sensors can be manufactured in such a way
that they are fully exchangeable, which is easy for servicing. Also the exact
depth of insertion is not critical, which saves installation time.
-
SUGGESTED USE
-
- Studies of energy balance of
furnaces.
- Safety systems of blast
furnaces.
- Monitoring of smelters.
-
-
Figure 2 NF-01-ATX-4mm version for operation
in the water cooled part (shell) of the furnace wall. Steel shell(2), water cooling (3), graphite or brick (1), Coupling
screwed part (4), PVC cable (5), heat flux and temperature sensor (6), coupling
welded part (8).
Figure 3 NF-01-ATX-8mm version for operation
in the graphite part of the furnace wall. Steel
shell(2) , water cooling (3), graphite or brick (1), Coupling screwed part(4),
PVC cable (5), heat flux and temperature sensor (6), coupling welded part
(8).
MORE INFORMATION /
OPTIONS
- Alternative designs:
LICHTZEN AE / AITNIX is specialised in heat
flux sensor design. For different applications special models can be
constructed.
- Optional: NF-01-ATX can be made in different diameters and lengths (see
below). Extended temperature to 1000 degrees C.
- See model NF02 for miniaturised versions of
NF-01-ATX
- See NAM01 and AC100 amplifiers for
amplification.
-
- Added
items:
- NF-01-ATX coupling -W, coupling welded part, specify length
- NF-01-ATX coupling -S, coupling screwed part
- NF-01-ATX-BIT, bits for drilling/centering order depentent
- NF-01-ATX-DRILL, drills order dependent
-
NF-01-ATX
SPECIFICATIONS
-
Sensitivity (nominal): depends on exact
design
-
Temperature dependence: depends on exact
design
-
Working range (typical): 0.05 to 50 kWm-2
-
Temperature range sensor: -30
to +1000 °C
-
Temperature range cable:-30 to
+105 °C
-
Heat flux output signal: analog
microvolts
-
Temperature output signal:
thermocouple type K
-
Power requirements: no power
required
-
Optional: sensor length and
diameter, extended cable, cables with alternative colour codes
-
Protection
sensor/coupling/cable: IP 65 / 64 / 64
-
CE certification: NF-01-ATX is CE certified
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