Gas-fired shock wave ash removal device in petroleum refining

Abstract

The invention relates to a gas-fired shock wave ash removal device in petroleum refining. In the prior art, gas rich in CO is regenerated and introduced into a furnace to burn in a delay mode by using a CO furnace, vapor is generated by using waste heat at the same time, but due to the fact that fume comprises a great amount of catalyst dust, on the condition that the CO furnace recycles fume heat, a high-temperature superheater tube and an economizer tube deposition are very serious, the existing ash removal device cannot meet requirements, and generally the furnace needs to be stopped for ash removal every two months. The gas-fired shock wave ash removal device in the petroleum refining comprises a shock wave generator, a mixer and an igniter. Air and fuel gas are respectively communicated with the mixer through two air inlet pipelines. The other end of the mixer is connected with the shock wave generator through the igniter. The lower end of the shock wave generator is arranged inside a furnace wall in a penetrating mode through pipelines. A magnetic valve is arranged on the air inlet pipeline of the mixer. The gas-fired shock wave ash removal device in the petroleum refining is wide in range of application, good in ash removal effect and small in maintenance.

Description

technical field [0001] The invention relates to a gas shock wave soot blowing device in petroleum refining. Background technique [0002] The catalytic cracking unit is an extremely important secondary processing unit in a refinery, and its energy consumption level has a significant impact on the entire plant. Now, the CO boiler is used to delay the regeneration of the unit’s CO-rich gas and introduce it into the furnace for combustion, while utilizing the potential of lung heat Steam is generated, but due to the large amount of catalyst dust in the flue gas, when the CO boiler recovers the heat of the flue gas, the high-temperature superheating tube and the economizer tube are extremely dusty, and the existing soot blowing device cannot meet the requirements. Generally, it takes about two months to shut down the furnace to clean the dust. Contents of the invention [0003] The technical problem solved by the invention is to provide a gas shock wave soot blowing device in...

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Problems solved by technology

[0002] The catalytic cracking unit is an extremely important secondary processing unit in a refinery, and its energy consumption level has a significant impact on the entire plant. Now, the CO boiler is used to delay the regeneration of the unit’s CO-rich gas and introduce it into the furnace for combustion, while utilizing the potential of lung heat Steam is generated, but due to the large amount of catalyst dust in the flue gas, when the CO boiler recovers the heat of the flue gas, the high-temperature superheating tube and the economizer tube are extremely dusty, and the existing soot blowing device cannot meet the requirements. Generally, it takes about two months to shut down the furnace to clean the dust

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