BQ-2 online oil analyzer infrared method

BQ-2 online oil analyzer infrared method

The new generation of online monitoring instruments for detecting trace oil concentrations in sewage is suitable for continuous monitoring of ship bottom oil and sewage discharge, with 15ppm over limit alarm and sewage discharge control functions. It is generally used in conjunction with a bilge oil-water separator.

Through type approval by China Classification Society, the performance indicators meet the requirements of Resolution MEPC. 107 (49) of the Maritime Environment Protection Committee of the International Maritime Organization.

Measurement principle:

Adopting infrared scattering measurement technology. By measuring the transmitted and scattered light signals of the discharged water through infrared spectroscopy, the oil content is measured through high-resolution photoelectric converters and microprocessor data processing. When the oil concentration in the discharged water exceeds the specified value (5ppm), the instrument will issue an alarm and output a control signal to control the excess. The accompanying bilge oil-water separator and shut-off device (solenoid valve) will be controlled, and the execution status of the shut-off device will be monitored to effectively prevent the direct discharge of excess sewage.

Features:

(1) Adopting multi band infrared measurement principle and microprocessing technology, with fast response time and high measurement accuracy;

(2) The overall design adopts anti electromagnetic interference to overcome the influence of the usage environment on the instrument, improve the system stability and reliability of the instrument;

(3) Real time display of oil concentration and system operating status;

(4) Real time recording of various alarm status data and automatic storage, printing of historical data at any time;

(5) The measuring room is easy to maintain and clean, and the operation is simple;

(6) The instrument has a working status monitoring function, which can automatically control the discharge of excessive sewage in case of instrument failure, maintenance or replacement.

Main performance indicators

(1) Measurement range 0-30ppm (display range 0-80ppm)

(2) Measurement accuracy (15ppm alarm) ± 5ppm (compliant with IMO regulations)

(3) Display mode: LED digital tube

(4) Alarm indication: 4-channel red light-emitting diode

(5) Alarm relay 2 channels

(6) Relay contact rated capacity 250VAC 3A (non inductive)

(7) Response time ≤ 5 seconds

(8) Output signal 4-20mA

(9) Environmental temperature: 0 ℃ -+55 ℃

(10) Relative humidity ≤ 93%

(11) Sample solution temperature 1-55 ℃

(12) Sample liquid pressure 0.1-0.6MPa

(13) Sample flow rate 0.1-4L/min

(14) Protection level IP55

(15) Main power supply 220/110VAC 50Hz/60Hz

(16) Power consumption ≤ 20VA

(17) Dimensions: 400mm × 300mm × 160mm

(18) Compliant with the standard IMO. Res. MEPC. 107 (49) resolution

BQ-2 online oil analyzer infrared method

Wastewater treatment testing for oil content in water