Anti-scour device of chloromethane waste heat recovery device

Abstract

The invention discloses an anti-scour device of a chloromethane waste heat recovery device. The anti-scour device comprises a shell, wherein a water inlet is formed in the shell, a heat exchange tubeis arranged in the shell, the water inlet is located above the heat exchange tube, and an anti-scour device body fixedly connected with the shell is mounted at a gap between the water inlet and the heat exchange tube. Due to the fact that the water inlet speed and the water inlet amount are different each time, a common anti-scour device has difficulty in achieving a good anti-scour effect; the anti-scour device can achieve a good anti-scour effect through a semi-spherical baffle, a spring and a water leakage opening; when water flow is too small and the impact force of the water flow is insufficient to enable the baffle to descend, the water flow falls down on the heat exchange tube along a first-layer channel plate; and when the water flow is large, the impact force of the water flow enables the baffle to descend, the descending depth of the baffle is related to the water inlet amount, and the larger the water inlet amount is, the larger the descending depth of the baffle is, and thelarger the water outlet capacity of the water leakage opening is. According to the anti-scour device, the impact force of the water flow entering the shell is greatly reduced through multiple times of diversion and multiple times of water flow impact, so that the service life of the heat exchange tube is prolonged, and the service life of the device is prolonged.

Description

technical field [0001] The invention relates to chemical equipment, in particular to an anti-shock device of a methyl chloride waste heat recovery device. Background technique [0002] The main production process of methyl chloride products is the high-temperature chlorination reaction of methane, and the reaction is usually carried out between 380 and 450 degrees. Due to the high temperature of the reaction product, the sensible heat of the material has great utilization value. If the traditional circulating water cooling process is adopted, the high-grade heat of reaction will be converted into low-grade heat, which will be taken away by the circulating water and cannot be used, resulting in great waste. If the sensible heat of methane chloride in the higher temperature range is used for by-product steam, and then cooled by circulating cooling water, the amount of cooling water can be reduced, thereby realizing the comprehensive utilization of reaction waste heat. [0003...

AI Technical Summary

Problems solved by technology

[0003] The methyl chloride waste heat recovery device is composed of a steam drum and an evaporation section. The role of the evaporation section is the same as that of a heat exchanger. The high-temperature methyl chloride gas passes through the heat exchange tube, and the low-temperature water in the simplified body takes away the heat on the heat exchange tube, and the produced water The steam is recovered by the steam drum, but when designing and manufacturing the evaporation section, the anti-shock device is easily ignored as an auxiliary component, so that the evaporation section cannot achieve safe and reliable operation. Setting a reasonable and effective anti-shock structure can prolong the service life of the evaporation section

Images