L-type impact air flow attenuator

Abstract

The invention discloses an L-type impact air flow attenuator which comprises an air flow buffer cavity. An air inlet pipe and an air outlet pipe are installed on the air flow buffer cavity, wherein the air inlet pipe and the air outlet pipe are communicated with a cavity body inside the air flow buffer cavity, the direction changing position of an evacuation pipeline is communicated with the air outlet pipe through the air inlet pipe on the air flow buffer cavity, the air inlet pipe is perpendicular to the air outlet pipe, and L-type layout is arranged inside the air flow buffer cavity. According to the L-type impact air flow attenuator, the characteristics of impact air flow and the evacuation pipeline are comprehensively considered, the basic principles of an interference type air flow buffer, a perforated plate and a hole plate acoustic filter are fused, and the characteristics of the flow exhaust requirements and of the evacuation pipeline and the small installation site of the attenuator are comprehensively considered. For the evacuation pipeline with pipeline steering at the position of an outlet in a security valve, the L-type impact air flow attenuator achieves the effects of dissipating the impact air flow energy, reducing the pipeline coupling, and ensuring the gas exhaust flow requirements to the greatest extent by arranging the air flow buffer cavity and communicating the direction changing position of the evacuation pipeline by the air inlet pipe and the air outlet pipe of the air flow buffer cavity.

Description

technical field [0001] The invention belongs to the field of safety assurance of large and medium-sized gas storage tanks in industries such as petroleum, chemical industry, and energy, and specifically relates to an L-shaped impact air flow attenuator. Background technique [0002] Large and medium-sized high-pressure gas storage tanks are widely used in petroleum, chemical, energy and other industries as pressure vessel equipment for storing gas. The venting pipeline is a key safety measure for this type of gas storage tank. Its function is to quickly discharge the high-pressure airflow that rushes out after the safety valve is automatically opened when the pressure in the gas storage tank exceeds the limit, so as to reduce the pressure of the gas storage tank to a safe range. The coupling between the high-pressure, high-speed impact airflow discharged from the automatic exhaust valve and the vent pipeline will cause vibration problems in the pipeline, especially at the pi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of shock vibration caused by the air discharge pipeline on the large and medium-sized high-pressure gas storage tanks, and to provide an L-shaped shock flow for the discharge pipeline with a pipe diversion outside the outlet of the gas storage tank safety valve Attenuator

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