Automatic PH value adjusting and alarming device for air conditioner closed-type chilled water system of power plant
A chilled water system and automatic adjustment technology, which is applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc. Real-time monitoring and out-of-standard alarms, reducing corrosion and extending operating life
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[0056] In Embodiment 1, the ratio of the total water volume in the make-up tank 9 to the capacity of the air-conditioning closed chilled water system 1 is set as x(x <1) In order to simplify the calculation, consider that the one-time replenishment volume is the total water volume in the replenishment tank, set the chemical demineralized water PH value a, set the dosing system corrosion inhibitor to ammonia, and set the system PH value b. Set the high threshold and low threshold of the first PH sensor 7 to PHg and PHd. The diameter of the inlet pipe for chemical desalination is D, the diameter of the inlet pipe for the dosing system is d, the second valve 11 and the third valve 12 are set as linear valves, and the second valve 11 is the valve on the inlet pipe for chemical desalination. The three valve 12 is a valve on the water inlet pipe of the dosing system.
[0057] Set the required PH value of the air-conditioning closed chilled water system 1 to be 7 to 7.5.
[0058] The che...
Example Embodiment
[0074] In Embodiment 2, the ratio of the total water volume in the makeup water tank 9 to the capacity of the air-conditioning closed chilled water system is set to 5%. To simplify the calculation, the one-time makeup water volume is considered to be the total water volume in the makeup water tank, and the chemical demineralized water PH value is set to 6.5. Set the corrosion inhibitor as ammonia and set the PH value of the dosing system to 10. The high threshold and low threshold of the first PH sensor 7 are set to PHg=10.5 and PHd=6. The diameter of the inlet pipe for chemical desalination is DN50, and the diameter of the inlet pipe for the dosing system is DN10. Set the second valve 11 and the third valve 12 as linear valves, and the second valve 11 is the valve on the inlet pipe for chemical desalination. The third valve 12 is a valve on the water inlet pipe of the dosing system.
[0075] Set the required PH value of the air-conditioning closed chilled water system 1 to 7.
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