SNCR/SCR escaped ammonia monitoring system
In the monitoring of denitration process gas, the detection of the escape ammonia (residual ammonia) concentration at the outlet is very important, because escape ammonia is one of the indicators reflecting and evaluating the denitration efficiency. At the same time, the excess ammonium salt generat
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I. Introduction
In the monitoring of denitration process gas, the detection of the escape ammonia (residual ammonia) concentration at the outlet is very important, because escape ammonia is one of the indicators reflecting and evaluating the denitration efficiency. At the same time, the excess ammonium salt generated by the escape ammonia will seriously affect the subsequent air pre-conditioner And other equipment are running normally, so NH3 escape monitoring is also the focus and difficulty of the current flue gas monitoring in the domestic denitration process.

II. Specifications

Gas

Range

Resolution

Repeatability

Linearity

Response time

Drift

NH3

0-10ppm

0.1ppm

≤1%FS

≤2%FS

≤1S

≤ 1%FS

Warm up

30min

Digital output

RS232/485

analogue

4-20mA max load 900Ω

Power supply

AC100-240V/47-63Hz

3KW

Replay output

Load capacityAC/DC 4V/1Aconcentration limitation alarmlight intensity abnormal alarm, laser detector temperature abnormal alarm

Optical path length

1-3 meters

Sampling gas

temperature

≥10 non-condensing

Sampling gas pressure

Atmosphere ±10kPa

Gas flow

≤6L/min

Ambient temperature

-20~55

Ambient pressure

70kPa-120kPa

Purging gas

0.4-0.6MPa compressed air or N2

Protection classe

IP65

Dimension

1800X800X650mm

New weight

120kg


III. Applications

SNCR/SCR process
 

II. Specifications

Gas

Range

Resolution

Repeatability

Linearity

Response time

Drift

NH3

0-10ppm

0.1ppm

≤1%FS

≤2%FS

≤1S

≤ 1%FS

Warm up

30min

Digital output

RS232/485

analogue

4-20mA max load 900Ω

Power supply

AC100-240V/47-63Hz

3KW

Replay output

Load capacityAC/DC 4V/1Aconcentration limitation alarmlight intensity abnormal alarm, laser detector temperature abnormal alarm

Optical path length

1-3 meters

Sampling gas

temperature

≥10 non-condensing

Sampling gas pressure

Atmosphere ±10kPa

Gas flow

≤6L/min

Ambient temperature

-20~55

Ambient pressure

70kPa-120kPa

Purging gas

0.4-0.6MPa compressed air or N2

Protection classe

IP65

Dimension

1800X800X650mm

New weight

120kg


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