Intelligent ammoniating apparatus

Intelligent boiler PLC ammonification automatic regulating device

One, intelligent ammonia device:

PLC intelligent ammonification automatic regulating device for boiler feed water boiler water PH value automatic control, so that the boiler water PH value is maintained in a certain range and run in the best condition, thereby preventing from water PH value caused by misalignment of boilers and other heating equipment of acid-base corrosion, the thermal system work in the best condition, extended thermodynamic equipment use life of thermal equipment, ensure the long-term stability and safety operation.

Two, intelligent ammonia dosing device characteristics:

In 1, PH singlechip intelligent instrument as one electrode, electrode.

In 2, the controller is a PLC programmable controller, has flexible and stable characteristics.

3, the user can according to their own all dosing pump type selection is by frequency converter.

4, control fuzzy control.

5, energy saving 30-50%

In 6, the amount of ammonia can save 20-30%

In three, the main technical parameters of intelligent ammoniating apparatus:

1, instrumentation: acidity 0-14PH, 4-20Ma input current.

2, like water temperature: 20-35 ℃

In 3, PLC programmable controller: S40M

4: according to the system pressure, the dosing pump selection

5, electricity requirements: AC220/380V ± 1050± 1Hz

6, the environment temperature: less than 45 DEG C.

In four, the working principle of intelligent ammoniating apparatus:

In order to meet timely continuous control object, the device adopts a closed loop colonization regulation system as shown in the figure:

Sample cooler cooling water temperature between 20-35 ℃. Table PH tested sample water PH value, on the one hand, digital display, on the other hand will be converted to 4-20mA standard signal output to the PLC programmable controller. The PLC programmable controller and the input signal and the comparison to colonization, according to comparison results according to a certain algorithm for logic operations, and outputs a corresponding 4-20mA current control the frequency converter to change the dosing pump motor speed, dosing pump motor speed change to control the dosage requirements, thereby allowing the controlled object parameters to run in the best state.

The system is provided with a protection function: when the tank level low level, the low liquid level relay signal sent to PLC, PLC will not start the dosing pump. When dosing pipe pressure is high, with high pressure signal contact sent to PLC, PLC will not start the medicine pump.

( the two signal contact with customers, and in order for this set of two meters )

Five, intelligent ammonia dosing device installation requirements:

1, dosing pipe to countercurrent direction and the nozzle is inserted into the pipe center line. Dosing pipe for 10-15mm stainless steel pipe, tube end attachment in evenly around the open around 10 2mm holes, ( see Figure 2 )

2, sample tube counter flow medium inserted tube straight through 3/4, and the sampling tube end within the 1/3-2/3 number of drilling holes with a diameter of 3mm, in order to increase the representation of sampling. ( see Figure 3 )

3, dosing and sampling port of the distances of 10-15 m is appropriate.

4, sampling points and PH sheet electrode sample pipe length greater than 20 meters is appropriate. Since the majority of manufacturers maintenance equipment is set to up is not convenient, therefore in the controller program design in this case are fully taken into account.

5, control cabinets should choose clean bright no corrosive gas away from the strong magnetic field, a temperature of less than 45 degrees, the humidity is less than 85%.

6, soluble kit installation should exert medicine outlet above the dosing pump agent inlet.

Six, intelligent ammonia device setting

In 1, PH: according to the requirements of the specification table on the table two point calibration. The output current of -20mA corresponding range is set to 8-10PH

2: frequency converter, the full range is set to 50Hz

3, dosing pump: stroke regulation in 50-70%

Seven, intelligent ammoniating apparatus on the run

1, close the inverter switch

2, close the instrument power switch

In 3, according to the automatic input button system into automatic operation

Eight, intelligent ammoniating apparatus maintenance

In 1, manual conditions, regular ( 1-4 weeks ) on the PH table two point calibration.

In 2, according to the PH table using manual periodic replacement of PH electrodes (usually 6-10 months )

In 3, kit level should ensure that the pump will not play air pump.

In 4, regularly check the dosing pump working condition.

Nine, intelligent ammoniating apparatus ordering notice

In 1, a full set of the order stated one set or two sets whether a standby pump.

2, control cabinet shall indicate whether the electromagnetic pump dosing pump.