Deep desalting system and method for boiler make-up water
A technology of replenishment water and depth, applied in general water supply saving, chemical instruments and methods, non-polluted water treatment, etc., can solve problems such as high salt content, failure to meet the requirements of deep-level purification of boiler water, and prone to scaling. To achieve the effect of improving processing capacity
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Embodiment 1
[0047] like figure 1 As shown, the deep desalination system for boiler feed water in this embodiment includes a three-stage filtration system, namely a pretreatment system, a reverse osmosis system and a mixed bed desalination system.
[0048] The pretreatment system includes a first water inlet end and a first water outlet end. From the first water inlet end to the first water outlet end, a clear water tank, a raw water pump, a pipeline mixer, a mechanical filter 100, an activated carbon filter 200 and a security guard are connected in sequence. Filter; a flocculant feeding device and a bactericide feeding device are installed between the raw water pump and the pipeline mixer.
[0049] Specifically, as figure 2 As shown, the mechanical filter 100 includes: a first tank 101, a first pipeline 102, a first water inlet pipeline 103, a first backwash water outlet pipeline 104, a first water inlet valve 105, and a first backwash drain valve 106, the second pipeline 107, the firs...
Embodiment 2
[0060] This embodiment discloses a method for deep desalination of boiler make-up water, which is implemented by the deep desalination system of boiler make-up water in the above-mentioned embodiment 1, and specifically includes the following steps:
[0061] S1. Pretreatment and desalination: Introduce clean water into the clean water tank, open the valves in the filtration direction of the pipeline mixer, mechanical filter, activated carbon filter and security filter, open the raw water pump to pump the water in the clean water tank into each In the filter, the mechanical filter and the activated carbon filter are regularly washed by controlling the corresponding valve;
[0062] S2. Reverse osmosis desalination: turn on the high-pressure pump, pump the water discharged from the security filter into the reverse osmosis device and flow into the intermediate pool for water storage, and periodically chemically clean the reverse osmosis device through the chemical cleaning system; ...
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