| US 11,103,802 B2 | ||
| Apparatus for desubliming or condensing a condensable fluid in a closed space | ||
| Pieter Jellema, Oss (NL); and Jelle Luutzen Nijdam, Oss (NL) | ||
| Assigned to Solutherm B.V., Oss (NL) | ||
| Appl. No. 15/116,969 | ||
| Filed by SOLUTHERM B.V., Oss (NL) | ||
| PCT Filed Feb. 6, 2015, PCT No. PCT/NL2015/050079 § 371(c)(1), (2) Date Aug. 5, 2016, PCT Pub. No. WO2015/119501, PCT Pub. Date Aug. 13, 2015. |
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| Claims priority of application No. NL 2012221 (NL), filed on Feb. 6, 2014. | ||
| Prior Publication US 2017/0165588 A1, Jun. 15, 2017 | ||
| Int. Cl. B01D 1/06 (2006.01); B01D 5/00 (2006.01); F28D 7/12 (2006.01); F28D 7/16 (2006.01); C11B 3/00 (2006.01); F28B 1/02 (2006.01); F28F 9/22 (2006.01); F28D 21/00 (2006.01) | ||
| CPC B01D 1/065 (2013.01) [B01D 5/006 (2013.01); B01D 5/0012 (2013.01); C11B 3/001 (2013.01); F28B 1/02 (2013.01); F28D 7/12 (2013.01); F28D 7/16 (2013.01); F28F 9/22 (2013.01); F28D 2021/0061 (2013.01); F28D 2021/0063 (2013.01); F28D 2021/0064 (2013.01); F28F 2009/226 (2013.01)] | 9 Claims |
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1. A method for desubliming or condensing a water-containing strip steam, in an apparatus provided with a chamber and at least one tubular member extending in an upright direction within the chamber and having a falling film of liquid ammonia at a temperature of −25 to −35° C. as cooling fluid on an inner side thereof,
wherein the at least one tubular member is provided with an outer member and an inner member extending within the outer member, wherein the inner member at a first end thereof is in communication with a supply of the cooling fluid and the outer member at a first end thereof is in communication with a discharge for the cooling fluid, wherein the outer member at a second end thereof is closed, and the inner member at a second end thereof is open and mouths into the outer member,
wherein the method includes, repetitively performing, in this order, the steps of
a) condensing or desubliming the water-containing strip steam at a working temperature of the at least one tubular member;
b) thawing off ice by heating the at least one tubular member to a higher temperature than the working temperature; and
c) cooling down the at least one tubular member from the higher temperature to the working temperature;
wherein the step a) includes supplying the cooling fluid through the inner member as a one phase liquid at a first flow speed so as to provide the falling film of liquid ammonia on an inner side of the outer member, and
desubliming or condensing the water-containing strip steam on an outer surface at the at least one tubular member;
wherein the step c) includes providing the cooling fluid as a two phase mixture to an entrance of the inner member of the at least one tubular member via a restriction at a second flow speed, which is higher than the first flow speed, and having a liquid phase of the two phase mixture of the cooling fluid evaporate downstream of the second end of the inner member.
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