Vacuum flash evaporation enhanced mass transfer deoxidation equipment and deoxidation process
A flash evaporation and vacuum technology, applied in the field of water deoxygenation, can solve the problems of narrow application range, large steam consumption, small amount of water steam, etc., and achieve the effects of wide application range, low operating cost and short residence time.
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[0037] Example 1
[0038] Such as figure 1 As shown, a vacuum flash evaporation enhanced mass transfer deoxygenation equipment includes:
[0039] An enhanced mass transfer deaerator 1, which includes a cylindrical shell 5; a shaft 11 passing through the center of the bottom of the shell 5 is mechanically sealed with the bottom of the shell 5; the cylindrical shell 5 contains A rotating drum 9 capable of high-speed rotation. The rotating drum includes a circular bottom plate 18, an outer sleeve 15, an inner sleeve 16 and an annular upper plate 17. The center of the bottom plate 18 is connected to the shaft 11, and the outer sleeve 15 and the inner The sleeves 16 are of porous plate structure with a packing layer 8 therebetween; the upper end of the enhanced mass transfer deoxidizer 1 is provided with a spray pipe 12, one end of the spray pipe is the feed port 6, and the inner sleeve 16 of the drum A horizontal protruding part 7 is provided along with a liquid ring seal with the hou...
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[0048] Example 2
[0049] Under the action of the water ring vacuum pump 3, the pressure of the enhanced mass transfer deoxidizer 1 drops to 12.34KPa, and the pressure of the outer drum wall 15 is equivalent to it. At this time, the boiling point of water is 50 degrees, and because of the stainless steel wire mesh packing layer 8 The pressure drop is 7.59KPa, so the pressure in the inner cylinder 16 of the drum is 19.93KPa. The oxygenated water heated to 60°C enters the enhanced mass transfer deaerator 1 from the feed pump 2, and then enters from the feed port 6 and is sprayed into the inner cylinder wall 16 of the drum through the spray pipe 12 and enters the packing layer 8. When the saturated vapor pressure drops to 19.93KPa at 60℃, the water starts to boil and produce steam; the shaft 11 is directly connected with the speed-regulating motor, and the packing 8 placed in the drum 9 rotates at a high speed under the drive of the shaft 11, and its speed range is 500 ~2000rpm, th...
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