Vortex broken flow type hydrogen cold box

Abstract

The invention discloses a vortex broken flow type hydrogen cold box. The vortex broken flow type hydrogen cold box comprises an intercepting plate and a mixing box which are coaxially connected, wherein an annular gap is formed between the mixing box and a reactor cylinder body, a plurality of feeding inlets are uniformly formed in the bottom of the outer wall of the mixing box, an overflow cylinder is mounted on a gas-liquid mixture outlet in the center of the mixing box, the center height of the overflow cylinder is more than the height of the upper edge of each feeding inlet, the area of a gas-liquid inlet in the top end of the overflow cylinder is less than the sum of the areas of all feeding inlets, a plurality of broken flow holes are formed in the gas-liquid mixture outlet, and a plurality of guide plates of which the heads and the tails are connected in a staggered state and which are arranged in the shapes of circles are arranged around the overflow cylinder. According to the vortex broken flow type hydrogen cold box disclosed by the invention, the structure is simple, and the spiral guide plates, the overflow cylinder and the broken flow holes are arranged, so that a flat mixed structure is formed, under the condition of lowering the height of the hydrogen cold box, the gas-liquid two-phase mixed heat transfer effect is strengthened, and the problems of the existing hydrogen cold box such as short material residence time, insufficient mixing, nonuniform cooling, complex structure and big pressure drop can be effectively improved.

Description

technical field [0001] The present invention relates to the technical field of hydrogenation reactor equipment in the petrochemical industry, in particular to a swirling broken-flow cold hydrogen tank, especially to a cooling hydrogen tank for fully mixing and transferring cold hydrogen, high-temperature hydrocarbon reactants and hot hydrogen Hydrogen tank. Background technique [0002] Hydrogenation reactions in petroleum processing include hydrocracking, hydrofining, hydroupgrading, hydrotreating and other reactions, all of which are exothermic reactions. As the hydrogenation reaction proceeds, the temperature of the reaction materials continues to rise, and the higher the temperature of the reactants, the faster the reaction rate. A vicious cycle will easily cause the entire catalyst bed to overheat, resulting in coking of the catalyst and damage to the performance of the catalyst. Therefore, the hydrogenation reactor is usually equipped with multiple catalyst beds, and ...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a swirling broken flow type hydrogen cooler to meet the requirements of reducing the height of the cold hydrogen tank, to strengthen the mixed heat transfer effect of the gas-liquid two-phase, and to effectively improve the retention of materials in the existing hydrogen cooler. Problems of short time, insufficient mixing, uneven cooling, complex structure and large pressure drop

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