US 11,052,349 B2
Apparatus for membrane distillation using solar absorber and heat pump
Kyung Guen Song, Seoul (KR); Won Jun Choi, Seoul (KR); Jae Won Shin, Seoul (KR); Jin-soo Cho, Seoul (KR); and Dasom Wang, Seoul (KR)
Assigned to KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed by KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed on Nov. 26, 2019, as Appl. No. 16/695,185.
Claims priority of application No. 10-2019-0113586 (KR), filed on Sep. 16, 2019.
Prior Publication US 2021/0077952 A1, Mar. 18, 2021
Int. Cl. B01D 61/36 (2006.01); B01D 3/00 (2006.01); B01D 1/00 (2006.01); C02F 1/44 (2006.01); C02F 1/14 (2006.01)
CPC B01D 61/364 (2013.01) [B01D 1/0035 (2013.01); B01D 3/007 (2013.01); C02F 1/14 (2013.01); C02F 1/447 (2013.01); B01D 2313/36 (2013.01); B01D 2313/38 (2013.01); Y02E 10/40 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus for membrane distillation using a solar absorber and a heat pump, comprising:
a raw water circulation pipe that circulates raw water in a raw water tank;
a solar heat absorbing device provided on one side of the raw water circulation pipe to heat the raw water in the raw water circulation pipe;
the raw water tank that receives the raw water heated by the solar heat absorbing device through the raw water circulation pipe and supplies the raw water to a membrane distillation module;
the membrane distillation module that produces treated water from the raw water through a membrane distillation process;
a coolant tank that supplies a coolant to the membrane distillation module and collects the treated water produced by the membrane distillation module; and
the heat pump that heats the raw water and cools down the coolant when a temperature difference between the raw water in the raw water tank and the coolant in the coolant tank is smaller than a reference value.