Apparatus for scrubbing of gaseous fluids

Claim 2

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including at least one barrier provided in said section and extending substantially transversely thereof to reduce the crosssectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barrier, at least that part of said section which accommodates said barrier and surrounds said portion of said passage having a polygonal cross-sectional outline, particularly a square or rectangular outline, and said part of said section extending substantially horizontally and including a top wall and two side walls, said barrier being inwardly adjacent to said side walls and said section having two liquid-admitting openings of relatively large cross-section each provided in one of said side walls adjacent to the respective end portion of said barrier, said openings communicating with said portion of said passage adjacent to and downstream of said barrier and being arranged with respect to said receptacle in such a way that a stream of liquid will pass into said portion of said passage through substantially the whole cross section of each opening so that said streams of liquid are atomized to thereby effect a thorough scrubbing of the gas stream.

Claim 3

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including two barriers provided in said section and extending substantially transversely thereof to reduce the cross-sectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barriers, said section having at least one liquid-admitting opening of relatively large cross section communicating with said portion of said passage adjacent to and downstream of said barriers, said opening being arranged with respect to said receptacle in such a way that a stream of liquid will pass into said portion of said passage through substantially the whole cross section of said opening so that said stream of liquid is atomized to thereby effect a thorough scrubbing of the gas stream, at least that part of said section which accommodates said barriers and surrounds said portion of said passage having a polygonal cross-sectional outline, particularly a square or rectangular outline, said part of said section extending substantially horizontally and comprising two side walls and additional walls including a top wall and a bottom wall, each of said barriers being inwardly adjacent to one of said side walls and said opening being provided in one of said additional walls.

Claim 4

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including two barriers provided in said section and extending substantially transversely thereof to reduce the cross-sectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barriers, said section having at least one liquid-admitting opening of relatively large cross section communicating with said portion of said passage adjacent to and downstream of said barriers, said opening being arranged with respect to said receptacle in such a way that a stream of liquid will pass into said portion of said passage through substantially the whole cross section of said opening so that said stream of liquid is atomized to thereby effect a thorough scrubbing of the gas stream, at least that part of said section which accommodates said barriers and surrounds said portion of said passage having a polygonal cross-sectional outline, particularly a square or rectangular outline, said part of said section extending substantially horizontally and comprising two side walls and additional walls including a top wall and a bottom wall, each of said barriers being inwardly adjacent to one of said side walls and said opening being provided in one of said additional walls.

Claim 5

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including at least one barrier provided in said section and extending substantially transversely thereof to reduce the cross-sectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barrier, said section comprising a substantially horizontal median part of minimum cross-sectional area which accommodates said barrier and is provided with at least one liquid-admitting opening communicating with said portion of said passage.

Claim 6

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including at least one barrier provided in said section and extending substantially transversely thereof to reduce the cross-sectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barrier, said section comprising a substantially horizontal median part of minimum cross-sectional area which accommodates said barrier and is provided with at least one liquid-admitting opening communicating with said portion of said passage.

Claim 7

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including at least one barrier provided in said section and extending substantially transversely thereof to reduce the cross-sectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barrier, said section having at least one liquid-admitting opening of relatively large cross-section communicating adjacent and downstream of said barrier with said portion of said passage, said liquid-admitting opening being arranged with respect to said receptacle in such a manner that liquid will pass in a stream through substantially the whole cross-section of said opening into said portion of said passage in which turbulence in said gas stream is produced so that said stream of liquid is atomized to thereby produce a thorough scrubbing of the gas stream.

Claim 8

Apparatus for scrubbing or analogous treatment of gases, comprising a receptacle for a supply of liquid; a duct defining a passage wherein a stream of gas to be treated is conveyed in a predetermined direction, said duct including a section located below the level of liquid in said receptacle; and a constriction including at least one barrier provided in said section and extending substantially transversely thereof to reduce the cross-sectional area of said passage and to produce turbulence in the gas stream in a portion of said passage located downstream of said barrier, said section having at least one liquid-admitting opening of relatively large cross-section communicating adjacent and downstream of said barrier with said portion of said passage, said liquid-admitting opening being arranged with respect to said receptacle in such a manner that liquid will pass in a stream through substantially the whole cross-section of said opening into said portion of said passage in which turbulence in said gas stream is produced so that said stream of liquid is atomized to thereby produce a thorough scrubbing of the gas stream.

Claim 9

Apparatus as defined in claim 4, wherein at least that part of said section which accommodates said barrier and surrounds said portion of said passage has a polygonal cross-sectional outline, particularly a square or rectangular outline.

Claim 10

Apparatus as defined in claim 5, wherein said part of said section comprises four walls and wherein said constriction comprises four barriers each inwardly adjacent to one of said walls.

Claim 11

Apparatus as defined in claim 5, wherein said part of said section includes a pair of side walls and wherein said constriction comprises two elongated barriers each inwardly adjacent to one of said side walls, each of said barriers making an oblique angle with said predetermined direction.

Claim 12

Apparatus as defined in claim 4, wherein said duct includes an upwardly curved portion which conveys the gas stream from said portion of said passage above the liquid level in said receptacle.

Claim 13

Apparatus as defined in claim 8, further comprising means for separating liquid globules from the gas stream downstream of said upwardly curved portion.

Claim 14

Apparatus as defined in claim 4, wherein said section includes a first part and a second part located downstream of said first part, said first part tapering toward said second part and said second part accommodating said barrier.

Claim 15

Apparatus as defined in claim 10, wherein the cross-sectional area of said second part is less than the cross-sectional area of the remainder of said section and wherein said opening is provided in said second part.

Claim 16

Apparatus as defined in claim 4, further comprising channel means for admitting liquid to said opening, said channel means having inlet means located below said opening at such depth in the liquid in said receptacle that the gas stream cannot penetrate into said receptacle.

Claim 17

Apparatus as defined in claim 4, further comprising at least one fluid-supplying conduit connected with said section of said duct to discharge a fluid into said portion of said passage.

Claim 18

Apparatus as defined in claim 4, wherein said opening is of polygonal outline.