Porous evaporation wall device used for supercritical water treatment of waste organic matters
A technology of porous evaporation and supercritical water, applied in the direction of oxidized water/sewage treatment, etc., can solve the problems of easy breakage, poor machining performance, difficult handling and assembly, and achieve the effect of simplified connection
Inactive Publication Date: 2011-04-06
XI AN JIAOTONG UNIV +1
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Problems solved by technology
[0006] However, the porous evaporation wall has the following disadvantages: 1. Low mechanical strength, easy to break, difficult to handle and assemble, and the production size should not be too large; 2. Poor machining performance, not easy to turn, mill and punch holes; 3. Poor welding performance , prone to cracks, affecting its life
In addition, the porous evaporation wall in the supercritical water oxidation reactor expands at high temperature, which adds to the difficulty of the new supercritical water oxidation reactor design
Method used
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[0024] see figure 1 , figure 2 , a porous evaporation wall device for supercritical water treatment with two layers of waste organic matter, mainly comprising: two porous evaporation walls 3 on the upper and lower layers, four fixed-distance tie rods 7, an upper support ring 1, a middle support ring 8, a lower support Ring 2. The upper supporting ring 1 is provided with grooves opening downward, the upper and lower end surfaces of the middle supporting ring 8 are respectively provided with grooves, and the lower supporting ring 2 is provided with grooves opening upward.
[0025] The distance tie rod 7 is composed of a stud bolt rod sliding through each support ring and a sleeve slidingly sleeved on the stud bolt rod to limit the distance between adjacent support rings. In this embodiment, there are four distance tie rods 7, and each distance tie rod 7 has two upper and lower sleeves, and each support ring is provided with four round holes in the circumferential direction, ...
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The invention belongs to the technical field of supercritical water oxidation technology, and relates to a supercritical water oxidation reactor, in particular to a porous evaporation wall device usedfor supercritical water treatment of waste organic matters, which is applicable to the supercritical water oxidation reactor. The porous evaporation wall device includes: a porous evaporation wall (3), at least two controlled interval pull rods (7), and upper support rings (1) and lower support rings (2) fixed at two ends of the controlled interval pull rods (7); and the upper support ring (1) isprovided with a downward groove, the lower support ring (2) is provided with an upward groove, two ends of the porous evaporation wall (3) are respectively positioned in the grooves of the upper andthe lower support rings (1, 2), and the groove of the upper support ring (1) is reserved with a longitudinal expansion space for the porous evaporation wall (3).
Description
technical field [0001] The invention relates to the technical field of supercritical water oxidation, in particular to a supercritical water oxidation reactor, in particular to a porous evaporation wall device for supercritical water treatment of waste organic matter, which is suitable for supercritical water oxidation reactors. Background technique [0002] Water is equivalent to a non-polar solvent in a supercritical state, and can be miscible with air, oxygen and organic matter in any proportion, thus forming a homogeneous environment. At this time, the gas-liquid phase interface disappears, which eliminates the mass transfer resistance between the phases, and the reaction speed of the dissolved substances is no longer affected by the mass transfer. At the same time, a higher reaction temperature (about 400-650° C.) also speeds up the reaction rate. [0003] In recent years, supercritical water oxidation technology (Supercritical Water Oxidation, referred to as SCWO) has...
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IPC IPC(8): C02F1/72
Inventor 王树众徐煜胡昕张宏徐东海王宁
Owner XI AN JIAOTONG UNIV