AQ301 Industrial Steam Boiler Water Dosing and
Management
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Features and
Benefits
- Keeps boilers
scale and corrosion free
- Lower operating
costs
- Ensures correct
chemical levels at all times
- Reduced man hours
in system operation and tests
- Easily
reconfigured for new chemical suppliers
- Optional GSM interface allows
selectable alarms to be sent to an
engineer or control room telephone
Download PDF
specifications here |
This unit is specially designed to suit automated water
quality management for industrial boilers up to 15 bar at an
affordable price.
The AQ301 system can be manufactured for a single product
chemical regime, with one injection pump, or for a 2 product
regime with (max) two pumps.
The unit further comprises pH, conductivity, feed temperature
probes and mechanical flowmeter. It comes with a local LCD
display to display water parameters.
Probes are easily calibrated from the front panel and a low
product level alarm is provided for the chemical drums.
The unit is stand-alone but can be expanded to full remote
monitoring, data logging and display with AQUANET software and
PC.
This unit accepts only a single boiler water sample. For dual
boilers and/or a feed sample, an AQ300 unit is required.
| Specifications
Description
The equipment is supplied
as a separate instrumentation cabinet and pump rack.
The instrumentation cabinet is stainless steel with
hinged lockable doors. The left hand section holds the
integral sample cooler and probes. The right hand
section houses the
electronics, manual controls and communication
interface.
Dimensions
(W)x(H)x(D) mm
Cabinet 740 x 450 x 150
Drum Frame - 760 x 1000 x 340
Weight - 35 kg
Colour
RAL 7-001 (dark grey) Rating - IP66
Power requirements
220/240 Vac 50/60 Hz. 6A
Max. Operating Temperature
50?C max.
Humidity 0-95% RH non condensing |
Probes
pH
Range 0 ? 14pH
Sealed Reference cell
Resolution 0.5% FSD
Conductivity
Range 0-6000uMhos (other ranges available)
Automatic temperature compensation
Resolution 0.5% FSD
Dissolved Oxygen (OPTION)
Range 0 ? 2.5 mg/litre
Automatic temperature compensation
Resolution 0.5% FSD
Feed Temperature
Stainless steel pocketed probe
0-110?C scaled as 4-20 mA signal
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Mechanical Flow Meters
Flanged DN25 to DN80
PN16
Maximum Temp 130?C
OR
Ultrasonic Flow Meters
(Non penetrating.
Clamps onto outside of existing pipe work).
Blowdown
Through the unit on smaller boilers or via blowdown
valves (optional)
Dosing Pumps
Diaphragm Pulse
1 litre/hr 17 bar max, polypropylene head.
Teflon coated diaphragm.
GSM Interface (OPTION)
Allows selectable alarms to be sent to an
engineers or control room telephone.
Communications and Monitoring (OPTION)
AQUANET software
compatibility for monitoring, logging and display. RS422
differential line drivers CRC protected |
Description of Operation
The boiler sample and cooling water supply are activated
for 5 minutes at a pre-programmed periodicity of 10
minutes to 42 hours. The sample is analysed and the
information processed by the electronics, followed by a
small upward or downward adjustment of the relevant
chemical pumps. The boiler water conductivity controls
the optional auto surface blowdown valve, maintaining
the conductivity to pre-programmed levels. This
accurately maintains the water at the ideal density for
maximum chemical performance with minimum chemical and
water wastage.
Special Features
Probe calibration easy and quick at unit.
Probe construction designed for easy mounting and
removal.
Extra pump speed control facility at unit.
Water sample temperature display, with probe protection
cut-out.
Fuse failure alarms.
Pumps have special venting arrangements, returning the
vented chemical to the drum. |
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Aquanet