Quenching water device suitable for long-period operation of acetylene furnace

Abstract

The quenching water device comprises a first layer of water spraying ring and a second layer of water spraying ring which are arranged up and down, and the first layer of water spraying ring is located above the second layer of water spraying ring; the first layer of water spraying ring is provided with a plurality of first nozzles which are obliquely arranged downwards, the second layer of water spraying ring is provided with a plurality of second nozzles which are obliquely arranged downwards, the bottom of the first layer of water spraying ring is further connected with a plurality of third nozzles, and the third nozzles are located below the first nozzles. The total nozzle number is reduced, and the quenching water amount of a single nozzle is increased. And a large-channel nozzle structure is adopted, so that the phenomenon of nozzle blockage is avoided to a great extent, and the normal operation period of the device is prolonged. A plurality of third nozzles are connected to the bottom of the first-layer water spraying ring, the third nozzles can be used for discharging sewage, carbon black and carbon slurry in the first-layer water spraying ring are emptied, the blocking risk of the first nozzles is further reduced, and the normal operation cycle of the quenching water device can be prolonged to 360 days.

Description

technical field [0001] The invention relates to the related technical field of acetylene preparation, in particular to a quenching water device suitable for long-term operation of an acetylene furnace. Background technique [0002] Methane and oxygen generate acetylene through oxidation and cracking reactions in the reaction chamber of the acetylene cracking furnace. At the same time, at high temperatures above 1300°C, acetylene will be further decomposed into carbon black, resulting in a decrease in the yield of acetylene in the cracked gas. Therefore, the outlet of the reaction chamber is equipped with a quenching water device, and the high-temperature cracked gas is cooled to below 90°C in a very short time by the quenching water, which can effectively inhibit the further decomposition of acetylene, thereby increasing the yield of acetylene. [0003] The current quenching water device of acetylene furnace usually adopts three-layer water ring water spray or four-layer wat...

AI Technical Summary

Problems solved by technology

In terms of technology, the quenching water is required to use purified carbon black water. The ordinary small channel quenching water nozzle must be disassembled and cleaned for normal operation after running for a period of time, which limits the normal operation cycle of the acetylene furnace. The current quenching water device The normal operation period is only 90-180 days

The structure of the nozzle used in each layer of the existing quenching water device is not the same, and it is not convenient to purchase

In the narrow space of the quenching chamber, the more layers of water rings, it is not conducive to installation and maintenance

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