U.S. patent application number 10/147210 was filed with the patent office on 2004-12-09 for hydraulic jet flash mixer with gas diffusion port in the flow deflector.
Invention is credited to Lang, John Stewart.
Application Number | 20040246813 10/147210 |
Document ID | / |
Family ID | 23579324 |
Filed Date | 2004-12-09 |
United States Patent
Application |
20040246813 |
Kind Code |
A1 |
Lang, John Stewart |
December 9, 2004 |
Hydraulic jet flash mixer with gas diffusion port in the flow
deflector
Abstract
A invention chemicals in the form of gases, into a fluid stream.
The mixing system withdraws a side stream of fluid from a main
fluid stream. The side stream is pressurized and directed through a
convergent nozzle, producing a high-velocity jet. This jet is
directed onto a deflector plate located on the center line of the
conduit that carries the main fluid stream and is thereby diverted
in the radial directions normal to the flow direction of the main
fluid stream. The deflector is provided with an gas diffudion port
for injecting the chemicals that are to be mixed into the main
stream. The even distribution of the injected chemicals is ensured
by the hydrodynamic forces generated by the flow of the
high-velocity jet over the deflector.
Inventors: |
Lang, John Stewart;
(US) |
Correspondence
Address: |
JOHN STEWART LANG
2209 S ANCHOVY AVE
SAN PEDRO
CA
90732
US
|
Family ID: |
23579324 |
Appl. No.: |
10/147210 |
Filed: |
May 20, 2002 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10147210 |
May 20, 2002 |
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09399390 |
Sep 20, 1999 |
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6422735 |
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Current U.S.
Class: |
366/162.4 ;
261/76; 366/173.1; 366/174.1 |
Current CPC
Class: |
B01F 25/3131 20220101;
B01F 25/25 20220101; C02F 1/685 20130101; C02F 2301/024 20130101;
B01F 23/453 20220101 |
Class at
Publication: |
366/162.4 ;
366/173.1; 366/174.1; 261/076 |
International
Class: |
B01F 005/02 |
Claims
1. Apparatus for injecting and mixing chlorine gas into a stream by
flash mixing comprising: a) a conduit for carrying the liquid
stream without chlorine gas in a first direction; b) Injection
means having an outlet for injecting a fluid stream into the liquid
stream; c) means for drawing off a portion of the liquid stream
from a predetermined position along the conduit and for supplying
the drawn-off portion to the injection means to form the fluid jet
stream; d) a deflector disposed proximate to and in front of the
outlet for deflecting the fluid stream in a second direction
transverse to the first direction of the liquid stream, the
deflector having a central axis and a passage coincident with the
central axis, the passage having an opening at a position of the
deflector which is closest to the outlet, for introducing the
chlorine gas into the fluid jet stream such that the chlorine gas
is carried in the second direction by the deflected fluid jet
stream for mixing into the liquid stream: and e) means for
conveying the chlorine gas under pressure into the passage, wherein
the predetermined position is upstream of the deflector, such that
the conduit is adapted for carrying the liquid stream with the
chlorine gas mixed therein away from the deflector, thereby
avoiding back
2. The apparatus of claim 1, wherein the deflector comprises a
conical form, having a base and a vertex, the vertex being
proximate to the outlet and the opening being within a tip located
at the vertex.
3. The apparatus of claim 2, wherein the tip is compromised of a
solid hemisphere attached to a tube that in turn is attached to the
passage coincident with the central axis, the tube having a
multiplicity of ports that allow chlorine gas to flow out of the
conduit running through the deflector and into the space between
the tip and the body of the deflector.
4. The apparatus of claim 3, wherein the end of the passage
coincident with the central axis is in communication with the means
for conveying the chlorine gas.
5. The apparatus of claim 4, wherein the base of the tip's
hemisphere has a larger diameter that the diameter of the
deflector's vertex; and the base of the tip's hemisphere is curved
in toward the central axis of the deflector.
6. The apparatus of claim 5, wherein the injection means for
injecting injects the fluid jet stream in the first direction.
7. The apparatus of claim 5, wherein the injection means for
injecting comprises a high-velocity jet nozzle at the outlet
thereof.
8. The apparatus of claim 5, wherein the injection means for
injecting and the deflector central axes which are aligned.
9. The apparatus of claim 5, wherein the deflector has a shape such
that the fluid jet steam is deflected in a symmetrical pattern.
10. The apparatus of claim 5, wherein the second direction is
normal to the first direction.
11. The apparatus of claim 5, wherein the deflector is shaped as a
surface of revolution about a central axis of the fluid jet
stream.
12. The apparatus of claim 5, further comprising a chlorine contact
unit downstream of the deflector, wherein the conduit is adapted
for carrying the liquid stream with the chlorine gas to the
chlorine contact unit.
13. Apparatus for injecting and mixing gas into a stream by flash
mixing comprising: a) a conduit for carrying the liquid stream
without gas in a first direction; b) Injection means having an
outlet for injecting a fluid stream into the liquid stream; c means
for drawing off a portion of the liquid stream from a predetermined
position along the conduit and for supplying the drawn-off portion
to the injection means to form the fluid jet stream; d) a deflector
disposed proximate to and in front of the outlet for deflecting the
fluid stream in a second direction transverse to the first
direction of the liquid stream, the deflector having a central axis
and a passage coincident with the central axis, the passage having
an opening at a position of the deflector which is closest to the
outlet, for introducing the gas into the fluid jet stream such that
the chlorine gas is carried in the second direction by the
deflected fluid jet stream for mixing into the liquid stream: and
e) means for conveying the gas under pressure into the passage,
wherein the predetermined position is upstream of the deflector,
such that the conduit is adapted for carrying the liquid stream
with the gas mixed therein away from the deflector, thereby
avoiding back
14. The apparatus of claim 13, wherein the deflector comprises a
conical form, having a base and a vertex, the vertex being
proximate to the outlet and the opening being within a tip located
at the vertex.
15. The apparatus of claim 14, wherein the tip is compromised of a
solid hemisphere attached to a tube that in turn is attached to the
passage coincident with the central axis, the tube having a
multiplicity of ports that allow gas to flow out of the conduit
running through the deflector and into the space between the tip
and the body of the deflector.
16. The apparatus of claim 15, wherein the end of the passage
coincident with the central axis is in communication with the means
for conveying the gas.
17. The apparatus of claim 16, wherein the base of the tip's
hemisphere has a larger diameter that the diameter of the
deflector's vertex; and the base of the tip's hemisphere is curved
in toward the central axis of the deflector.
18. The apparatus of claim 17, wherein the injection means for
injecting injects the fluid jet stream in the first direction.
19. The apparatus of claim 17, wherein the injection means for
injecting comprises a high-velocity jet nozzle at the outlet
thereof.
20. The apparatus of claim 17, wherein the injection means for
injecting and the deflector central axes which are aligned.
21. The apparatus of claim 17, wherein the deflector has a shape
such that the fluid jet steam is deflected in a symmetrical
pattern.
22. The apparatus of claim 17, wherein the second direction is
normal to the first direction.
23. The apparatus of claim 17, wherein the deflector is shaped as a
surface of revolution about a central axis of the fluid jet stream.
Description
FIELD OF THE INVENTION
[0001] This invention relates to mixing chemicals in a fluid stream
and more particularly to hydraulic diffusion flash mixing of
chemicals in water treatment and waste water treatment.
BACKGROUND OF THE INVENTION
[0002] This invention is a division of application Ser. No.
09/399,390, filed on Sep. 20, 1999. As such the general background
of this invention is as is stated for the abovementioned
Application. In particular, the portions of the background in
application Ser. No. 09/399,390 that pertain to the injection and
dispersion of gas into a fluid stream are cited herein. The
particular portions of the background are, page 1, line 18 through
page 1 line 24, page 2, line 22 through page 3, line 9 and page 3,
line 18 through page 6 line 20. The second embodiment of
application Ser. No. 09/399,390 is the subject of this
application.
SUMMARY OF THE INVENTION
[0003] The summary of the invention is as pertains to the second
embodiment of application Ser. No. 09/399,390. The particular
portions of the summary are, page 6, line 24 through page 7, line
9, and page 7, line 23 through page 8, line 13.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] FIG. 1 is a schematic illustration of a water treatment
system in which the embodiment of the inventive mixer is being
used;
[0005] FIG. 2 shows an embodiment of the inventive mixer in which
chlorine gas is introduced into a deflecting device of the
mixer;
[0006] FIG. 3 is an enlarged sectional view of the deflecting
element of the mixer in FIG. 2;
[0007] FIG. 4 is an enlarged sectional view of the portion of the
deflecting element of the mixer in FIG. 3: and
[0008] FIG. 5 is a schematic sectional view of a conduit taken
along line 8-8 of FIG. 2 and of FIG. 3 to show how jetted water and
injected chemicals disperse throughout the conduit.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0009] The detailed description of the invention is as is presented
for the second embodiment of application Ser. No. 09/399,390. The
particular portions of the detailed description of the preferred
embodiment are, page 9, line 8 through page 9, line 15, and page
10, line 18 through page 12, line 3.
[0010] Operation of the Invention
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