Continuously regenerable media purifier

Patent metadata

Field	Value
Publication number	US-11278835-B2
Application number	US-201815962853-A
Country	US
Kind code	B2
Filing date	Apr 25, 2018
Priority date	Apr 25, 2017
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

Regeneration of a fluid medium can be accomplished using a continuously regenerable scrubber, which, in its various embodiments, combines valve functions and sorbent material, such as amine beds, into one component, dramatically reducing size and mass of scrubber. Sorbent material beds rotate continuously past breathing gas vent loop ports for scrubbing CO2/H2O and then past vacuum ports for regenerating the sorbent material. Typically, a first fluid output is connected to a lower header fluid output and a second, sweeping fluid source connected to a lower header fluid input. A motor spins the substantially circular bed assembly at a predetermined speed which allows adsorption or absorption as well as desorption of materials flowing through the sorbent material.

First claim

The invention claimed is:

1. A continuously regenerable scrubber, comprising:
a. an upper header, the upper header comprising:
i. an outer surface;
ii. an inner surface;
iii. an upper header fluid inlet disposed through the outer surface to the inner surface, the upper header fluid inlet defining a fluid pathway into the inner surface;
iv. an upper header pressure inlet disposed through the outer surface to the inner surface; and
v. an upper header gasket;

b. an upper header spacer disposed about the lower surface of the upper header;
c. a lower header connected to the upper header, the lower header comprising:
i. an outer surface;
ii. an inner surface;
iii. a partitioning wall disposed within the inner surface, the partitioning wall defining a desorption area and a separate absorption area;
iv. a lower header fluid outlet disposed through the outer surface to the inner surface;
v. a lower header pressure outlet disposed through the outer surface to the inner surface; and
vi. a lower header gasket;

d. a lower header spacer disposed about the inner surface of the lower header;
e. a rotatable bed assembly disposed intermediate the upper header and the lower header, the rotatable bed assembly comprising:
i. a bed comprising a shape that is rotatable within the upper header and the lower header, the bed comprising a material receiver therethrough, the material receiver comprising a predetermined sorbent material disposed within the material receiver, the sorbent material operative via absorption alone, adsorption alone, and absorption and adsorption together, and of desorption of substances from or to flowing media;
ii. a bottom gasket disposed proximate a lower surface of the bed;
iii. a bottom bed screen disposed intermediate the bottom gasket and the lower surface of the bed;
iv. a bottom disk connected to the bottom bed screen;
v. a lower space disposed intermediate the bottom disk and the lower header;
vi. an upper gasket disposed proximate an upper surface of the bed;
vii. an upper bed screen disposed intermediate the upper gasket and the upper surface of the bed;
viii. an upper disk connected to the upper bed surface;
ix. a header spacer disposed intermediate the upper header and the upper gasket;

f. a rotator operatively in communication with the rotatable bed assembly; and
g. a fastener adapted to fasten the upper header to the lower header.

2. The continuously regenerable scrubber of claim 1 , wherein:
a. the upper header comprises an upper header interior wall defining a plurality of upper header fluid chambers; and
b. the partitioning wall of the lower header further defines a plurality of lower header fluid chambers, each of the plurality of lower header fluid chambers comprising a desorption area or a separate adsorption area.

3. The continuously regenerable scrubber of claim 2 , wherein:
a. the plurality of upper header fluid chambers further comprises two upper header fluid chambers separated by a first fluid blocking portion; and
b. the plurality of lower header fluid chambers further comprises two lower header fluid chambers separated by a second fluid blocking portion.

4. The continuously regenerable scrubber of claim 1 , wherein the predetermined sorbent material comprises amine.

5. The continuously regenerable scrubber of claim 1 , wherein the header spacer and the bottom disk each comprise a diamond coating.

6. The continuously regenerable scrubber of claim 1 , wherein the fastener comprises a plurality of bolts.

7. The continuously regenerable scrubber of claim 1 , wherein the upper header spacer and the lower header spacer comprise a ceramic.

8. The continuously regenerable scrubber of claim 1 , wherein:
a. the upper header gasket comprises a plurality of openings; and
b. the upper header spacer comprises a corresponding plurality of openings.

9. The continuously regenerable scrubber of claim 1 , wherein:
a. the lower header gasket comprises a plurality of openings; and
b. the lower header spacer comprises a corresponding plurality of openings.

10. The continuously regenerable scrubber of claim 1 , wherein:
a. the bed comprises a plurality of material receivers therethrough, each with a predetermined sorbent material disposed therein;
b. a bottom gasket comprises a plurality of openings;
c. the bottom bed screen comprises a shape sufficient to conform to the plurality of material receivers;
d. the bottom disk comprises a plurality of openings;
e. the upper gasket comprises a plurality of openings;
f. the upper bed screen comprises a shape sufficient to conform to the plurality of material receivers;
g. the upper disk comprises a plurality of openings; and
h. the header spacer comprises a plurality of openings.

11. The system for a continuously regenerable scrubber of claim 1 , further comprising:
a. a skirt disposed about an outer surface of the rotatable bed assembly, the skirt comprising an exterior surface and a substantially arcuate interior defining a geometry congruent with an outer boundary of the rotatable bed assembly; and
b. a seal adapted to isolate the rotatable bed assembly from the exterior surface of the skirt.

12. The continuously regenerable scrubber of claim 1 , wherein:
a. the upper header fluid inlet is in fluid communication with a breathing gas; and
b. the lower header fluid outlet is in fluid communication with a vacuum gas.

13. A continuously regenerable scrubber, comprising:
a. an upper header, the upper header comprising:
i. an outer surface;
ii. an inner surface;
iii. an upper header fluid inlet disposed through the outer surface to the inner surface, the upper header fluid inlet defining a fluid pathway into the inner surface;
iv. an upper header pressure inlet disposed through the outer surface to the inner surface; and
v. an upper header gasket;

b. an upper header spacer disposed about the lower surface of the upper header;
c. a lower header connected to the upper header, the lower header comprising:
i. an outer surface;
ii. an inner surface;
iii. a partitioning wall disposed within the inner surface, the partitioning wall defining a desorption area and a separate absorption area;
iv. a lower header fluid outlet disposed through the outer surface to the inner surface;
v. a lower header pressure outlet disposed through the outer surface to the inner surface; and
vi. a lower header gasket;

d. a lower header spacer disposed about the inner surface of the lower header;
e. a rotatable bed assembly disposed intermediate the upper header and the lower header, the rotatable bed assembly comprising:
i. a bed comprising a shape that is rotatable within the upper header and the lower header, the bed comprising a material receiver therethrough, the material receiver comprising a predetermined sorbent material disposed within the material receiver;
ii. a bottom gasket disposed proximate a lower surface of the bed;
iii. a bottom bed screen disposed intermediate the bottom gasket and the lower surface of the bed;
iv. a bottom disk connected to the bottom bed screen;
v. a lower space disposed intermediate the bottom disk and the lower header;
vi. an upper gasket disposed proximate an upper surface of the bed;
vii. an upper bed screen disposed intermediate the upper gasket and the upper surface of the bed;
viii. an upper disk connected to the upper bed surface;
ix. a header spacer disposed intermediate the upper header and the upper gasket;

f. a rotator operatively in communication with the rotatable bed assembly;
g. a fastener adapted to fasten the upper header to the lower header;
h. a skirt di

Assignees

• Oceaneering Int Inc

Inventors

• Fricker John
• Arai Tatsuya

Classifications

• B01D2253/20

  Organic adsorbents · CPC title

• B01D2258/06

  Polluted air · CPC title

• B01D2252/204

  Amines · CPC title

• B01D2201/16

  Valves · CPC title

• B01D2259/4566

  for use in transportation means · CPC title