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I-type impact air flow attenuator

A technology of attenuator and air flow, which is applied in container filling method, container discharge method, gas/liquid distribution and storage, etc., can solve problems such as impact vibration, achieve energy dissipation, ensure exhaust flow requirements, reduce pipe The effect of road coupling

Inactive Publication Date: 2015-04-29
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the impact vibration problem caused by the air discharge pipeline on the large and medium-sized high-pressure gas storage tanks, and to provide a type I impact air flow attenuator directly installed on the straight pipe section

Method used

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  • I-type impact air flow attenuator

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0018] see figure 1 , the present invention comprises an airflow buffer chamber 3, the two ends of the airflow buffer chamber 3 are equipped with an air inlet pipe 2 and an air outlet pipe 6 communicating with the inner cavity of the airflow buffer chamber 3, and the inner diameter of the air inlet pipe 2 and the air outlet pipe 6 is from the front end to the rear The end is a tapered structure; the length of the airflow buffer chamber 3 is 10 to 14 times the inner diameter of the inlet pipe 2 or the outlet pipe 6, and the width is 3 to 3.5 times the inner diameter of the inlet pipe 7 or the outlet pipe 4; the inlet pipe 2 and the outlet pipe 6 is a 1Cr18Ni9 austenitic stainless steel porous pipe with several through holes 7 on the pipe wall, the diameter of the through holes 7 is 1 / 8 to 1 / 7 of the inner diameter of the air inlet pipe 2 or the air outlet pipe 6; the s...

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Abstract

The invention discloses an I-type impact air flow attenuator. The I-type impact air flow attenuator comprises an air flow buffering cavity, wherein an air inlet pipe and an air outlet pipe which are communicated with an inner cavity of the air flow buffering cavity are arranged at the two ends of the air flow buffering cavity; straight pipe sections of an emptying pipeline are communicated by the air inlet pipe and the air outlet pipe on the air flow buffering cavity; the air inlet pipe and the air outlet pipe on are arranged on a same straight line and are distributed in an I shape in the air flow buffering cavity. According to the I-type impact air flow attenuator, the properties of impact air flow and the emptying pipeline are considered comprehensively, basic principles of an interference type air flow buffer, a porous plate and a pore plate acoustic filter are integrated and extraction flow requirements of the emptying pipeline and the dynamic property of the impact air flow are considered comprehensively; the I-type impact air flow attenuator can be mounted on the straight pipe sections of the emptying pipeline outside a safety valve horizontally or vertically; the air flow buffering cavity is arranged, and the turning parts of the emptying pipeline are communicated by the air inlet pipe and the air outlet pipe on the air flow buffering cavity, so as to realize the effects of dissipating the energy of the impact air flow, reducing a coupling effect of the pipelines and guaranteeing the requirements of extraction flow.

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 I-type 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 pipel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C13/02
Inventor 白长青张红艳崔铭洋
Owner XI AN JIAOTONG UNIV
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