Device for discharging an explosive gas

Patent metadata

Field	Value
Publication number	US-9316395-B2
Application number	US-201013202122-A
Country	US
Kind code	B2
Filing date	Feb 19, 2010
Priority date	Feb 24, 2009
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

A device for releasing an explosive gas via a stack arranged on a roof of a building is provided. The upper free end of the stack is provided with a discharging head including a plurality of distribution pipes projecting from the stack in the form of a star. Each pipe includes an outlet on the free end thereof. The device reduces the pressure wave load exerted during an explosion even during adverse wind conditions. To this end, the end regions of the distribution pipes are embodied as jet pumps in which the explosive gas is the propellant sucking the ambient air.

First claim

We claim:

1. A device for discharging an explosive gas, comprising:
a stack that is arranged on a roof of a building; and
a discharging head that comprises a plurality of distributor pipes emanating in a star shape from the stack,
wherein the discharging head is provided on an upper free end of the stack, and
wherein the plurality of distributor pipes each include at a free end an exit opening, and
wherein an end region of each of the plurality of distributor pipes is designed as a jet pump in which the explosive gas is a motive medium that takes in ambient air; and
wherein the plurality of distributor pipes are arranged in two levels, providing exit openings in a lower level and providing exit openings in an upper level,
wherein each jet pump includes a driving nozzle,
a diffuser, and a mixing chamber adjacent to the nozzle, where the ambient air is sucked in due to an underpressure set up in the diffuser,
wherein the driving nozzle is substantially arranged within the mixing chamber,
wherein the intake ambient air is mixed with the explosive gas in the diffuser disposed after the mixing chamber in a flow direction, and
wherein the mixture is blown out of the exit opening, and
wherein the plurality of distributor pipes of the upper level are inclined upward at a prescribed angle with respect to the roof, and
wherein the plurality of distributor pipes of the lower level are arranged horizontally with respect to the roof,
wherein the plurality of distributor pipes of the upper level and the plurality of distributor pipes of the lower are arranged in an alternating manner such that an angular offset with respect to the vertical axis of the stack exists between each distributor pipe of the upper level and an adjacent distributor pipe of the lower level.

Assignees

• Diesselhorst Tilman
• Hartmann Miks
• Knief Dirk
• Siemens Ag

Inventors

• Diesselhorst Tilman
• Hartmann Miks
• Knief Dirk

Classifications

• E04H12/28

  Chimney stacks, e.g. free-standing, or similar ducts (chimneys as part of buildings E04F17/02) · CPC title

• F24F13/26

  Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect · CPC title

• F23G7/085

  in stacks · CPC title

• E04F17/02

  for carrying away waste gases, e.g. flue gases (free-standing chimneys E04H12/28; connections between fireplace and chimney, chimney fittings, covers for cleaning holes of chimneys F23J; chimney tops F23L); Building elements specially designed therefor, e.g. shaped bricks or sets thereof {(coke-ovens C10B; working measures on existing vertical ducts E04G23/02; apparatus for inserting new lining elements in existing ducts E04G21/16; metallic chimneys, linings, joints and spacers therefor F23J11/00, F23J13/00)} · CPC title

• F23L17/16 Primary

  Induction apparatus, e.g. steam jet, acting on combustion products beyond the fire · CPC title