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Air expansion nozzle for high pressure ventilation

a high-pressure ventilation, air-expansion technology, applied in the direction of lighting and heating apparatus, combustion process, heating types, etc., can solve the problems of noise disturbance from the expansion process at the nozzle, which has not been adequately solved, and achieves the effect of low space requiremen

Inactive Publication Date: 2013-03-07
STRABAG SE
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AI Technical Summary

Benefits of technology

The invention is an air introduction nozzle for high pressure-ventilated spaces that reduces noise and does not negatively impact people's health. The nozzle has a low-cylindrical structure with a ratio of height to diameter of less than 1:3, and it has openings that guide the compressed air to the air expansion spaces. The air expansion spaces are separated from each other and are filled with a gas-permeable material. The nozzle has a low sound emission of less than 40 dB(A) and is visually inconspicuous. The technical effects of the invention are reduced noise levels and improved air quality in high pressure-ventilated spaces.

Problems solved by technology

A problem not hitherto adequately solved was, however, the noise disturbance from the expansion process at the nozzles.

Method used

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  • Air expansion nozzle for high pressure ventilation
  • Air expansion nozzle for high pressure ventilation
  • Air expansion nozzle for high pressure ventilation

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Embodiment Construction

[0043]FIG. 1 shows a perspective total view of a cutaway ventilation nozzle. The actual gas expansion part according to the invention is also provided with a visually pleasing panel or covering 8 shaped like a turned-over plate, which is connected by connecting means 12 to the gas expansion part. The panel 8, however, also contributes additionally, even though to a small extent, to the noise damping action in that it blocks noise coming from the air introduction space LE 9.

[0044]The cylinder top face and base face are configured here as an end plate 1 and base plate 2, which are held together by screws 11 (also by connecting means 12), as an excess pressure, which would drive the plates apart, prevails between the two plates 1 and 2.

[0045]The compressed air feed line in the form of a connecting piece leads through the base plate 2 into the air introduction space LE 9. In the embodiment, the cylinder wall ZE 10 extends downward beyond the base plate 2 and forms the connecting piece t...

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Abstract

An air introduction nozzle for high pressure-ventilated spaces has a substantially low-cylindrical structure and a centrally located air inlet space with a cylinder shell, which is provided with openings and is radially cylindrically surrounded by at least two air expansion spaces, filled with an air-permeable material. The air expansion spaces are separated from one another by cylinder shells provided with openings. The air is discharged from the nozzle through openings of the outermost cylinder shell enclosing the at least two air expansion spaces.

Description

BACKGROUND OF THE INVENTION[0001]The invention relates to the ventilation and simultaneous air conditioning of buildings.[0002]Ventilation in low-energy buildings, in other words buildings with low energy consumption. does not generally take place by means of windows. but by means of ventilation ducts.[0003]The use of compressed air for the mechanical ventilation and air conditioning of buildings makes substantial space gains possible compared to conventional solutions by means of ventilation ducts.[0004]It is already known to retrospectively provide buildings with compressed air lines, with the aid of which the space ventilation can be carried out. The possibility for air conditioning spaces is simultaneously provided here on the basis of the Joule-Thomson effect during the air expansion.[0005]A problem not hitherto adequately solved was, however, the noise disturbance from the expansion process at the nozzles.SUMMARY OF THE INVENTION[0006]The object of the invention is to provide ...

Claims

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Application Information

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IPC IPC(8): F24F7/00
CPCF25B9/02F24F13/06F24F5/0085F24F13/24
Inventor GRAUF, BORUTNIKOLICS, MIKLOS
Owner STRABAG SE
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