Composite superhigh pressure steam/gas discharging silencer

Abstract

The invention provides a composite superhigh pressure steam / gas discharging silencer which is a novel noise reduction device for superhigh pressure gas emptying and exhausting. The two ends of a first injection outer cylinder are welded with first elliptical heads respectively, one end of each first elliptical head is welded to a first joint throttle pipe with a pipe end plate IV, and the other end of the first elliptical head is welded to a hanger A; first, second and third levels are welded to the first joint throttle pipe in the inner cavity of the first injection outer cylinder; the first level includes a plugging ring plate I with a throttling pressure reduction pipe I and a pipe end plate I; the second level includes a plugging ring plate II with a throttling pressure reduction pipe II and a pipe end plate II; and the third level includes a plugging ring plate III with a throttling pressure reduction pipe III and a pipe end plate III. The members are welded firmly to form the integrated whole set of product.

Description

Technical field [0001] The invention relates to an ultra-high pressure steam / gas discharge compound muffler. It is a new type of noise reduction device for exhausting / exhausting steam at various ultra-high pressures. [0002] The high-speed air flow is ejected from the container, impacting and shearing the surrounding still air, causing severe gas disturbance near the nozzle, resulting in high-level aerodynamic noise, forming exhaust jet noise. For example, jet planes, rocket launches, etc. produce jet noise of 140-160dB(A), as well as boiler exhaust in thermal power plants, blast furnaces in the metallurgical industry, various gas emissions in chemical plants, and exhaust venting from air compressors, etc. There will be a strong exhaust jet noise. The noise is continuous broadband noise with peak frequencies proportional to airflow velocity and inversely proportional to exhaust pipe diameter. When the airflow velocity of the exhaust port reaches the speed of sound, that is...

AI Technical Summary

Problems solved by technology

[0019] Exhaust muffler in use at present, for example Chinese patent publication number: 85202382.0 discloses a kind of " KX-P type exhaust muffler ", and for example Chinese patent publication number: 85202382.0 discloses a kind of " KX-A type safety valve muffler " , KX-P and KX-A muffler series are suitable for boiler steam exhaust and other gas exhaust mufflers in petroleum, chemical, metallurgy, textile and other industrial sectors. Empty muffler, although they have obvious noise reduction effect, muffler structure and in the basic structure of preferred embodiment, they have the following problems and shortcoming about formation and are: throttling and decompression series generally only get 2 levels (that is: take over It is composed of 2-stage throttling and decompression tubes of the outer cylinder), the noise reduction of the designed muffler is generally about 35dB(A), and the total length of the mufflers is relatively slender (ie: 1. The noise reduction is generally relatively low ; 2, the installation space they occupy is also very large; 3, when subjected to reaction force, the safety of mutual balance is also poor) and so on.

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