US 11,865,500 B2
Instant dissolving device by mass transfer and stretching with a cleaning structure and a dissolving method thereof
Zheng Shu, Chengdu (CN); Zhongbin Ye, Chengdu (CN); Leiting Shi, Chengdu (CN); Xiao Shu, Chengdu (CN); Yalan Yang, Chengdu (CN); Yong Qi, Chengdu (CN); and Hongqiao Liu, Chengdu (CN)
Assigned to Southwest Petroleum University;, Chengdu (CN); and Chengdu Technological University, Chengdu (CN)
Filed by Southwest Petroleum University, Chengdu (CN); and Chengdu Technological University, Chengdu (CN)
Filed on Apr. 15, 2023, as Appl. No. 18/301,224.
Claims priority of application No. 202210405477.2 (CN), filed on Apr. 18, 2022.
Prior Publication US 2023/0330606 A1, Oct. 19, 2023
Int. Cl. B01F 21/10 (2022.01); B01F 27/93 (2022.01); B01F 33/80 (2022.01); B01F 101/00 (2022.01); E21B 43/16 (2006.01)
CPC B01F 21/10 (2022.01) [B01F 27/93 (2022.01); B01F 33/83613 (2022.01); B01F 2101/2805 (2022.01); E21B 43/16 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An instant dissolving device by mass transfer and stretching with a cleaning structure, consisting of a housing, a liquid inlet, a stretching repetition unit, a mass transfer unit, a cleaning unit and a liquid outlet; the stretching repetition unit, the mass transfer unit and the cleaning unit are arranged inside the housing, and the liquid inlet and the liquid outlet are provided on the housing; a polymer solution flowing from the stretching repetition unit or the mass transfer unit is connected to a polymer outlet provided in a lower part of the mass transfer unit through a channel;
the stretching repetition unit is sequentially composed of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc all with a plurality of through holes; the upper fixed fluted disc and the lower fixed fluted disc are fixed to a transmission shaft or the housing; a surface of the upper fixed fluted disc and the lower fixed fluted disc close to the movable fluted disc is of a short tooth structure, and is evenly engaged with a short tooth structure on both sides of the movable fluted disc; a diameter of the fixed fluted disc is less than a diameter of the movable fluted disc, and the stretching repetition unit is repeated in series from top to bottom, and also provided with the transmission shaft and a motor; a number of stretching repetition units is defined as n (n≥1);
the cleaning unit is arranged below the stretching repetition unit and connected with the transmission shaft, and rotates in opposite direction of the movable fluted disc of the stretching repetition unit through a coaxial reverser to clean the polymer solution adhered to the lower fixed fluted disc; the cleaning unit is arranged below each stretching repetition unit or below an entire stretching unit, and a bottom plate of the mass transfer unit is kept a certain distance from the lower fixed fluted disc, so as to store the polymer solution scraped off by the cleaning unit;
the mass transfer unit is arranged around a periphery of the stretching repetition unit; the polymer solution enters the mass transfer unit after being processed by the stretching repetition unit; the mass transfer unit is composed of k layer(s) of a mass transfer ring (k=3); a porous material is provided on a side of the mass transfer ring, and the polymer solution passes through the porous material provided on the mass transfer ring for transfer by shearing and flows out of the mass transfer ring which is combined with the stretching repetition unit; the mass transfer ring is movably arranged on the housing, the transmission shaft of the stretching repetition unit, or an external motor;
if set in combination with the stretching repetition unit, the mass transfer ring is first directly connected to an outer ring wall of upper and lower fixed fluted discs of the stretching repetition unit, forming an integrated cylinder with the stretching repetition unit; the mass transfer ring is kept stationary as the upper and lower fixed fluted discs, and rest of mass transfer rings are set apart from the stretching repetition unit and rotated by the coaxial reverser or a separate motor in an axis of the transmission shaft of the stretching repetition unit; adjacent separated mass transfer rings all rotate in the opposite direction, and an innermost separated mass transfer ring rotates in the opposite direction to the movable fluted disc of the stretching repetition unit; the bottom plate is arranged under a speared mass transfer ring, and a space is left in a horizontal direction between the adjacent mass transfer rings, so that the polymer solution is pulled in the opposite direction in different mass transfer rings; and
if k is 3, the mass transfer ring is set in combination with the stretching repetition unit and is divided into a fixed ring, an inner separated ring and an outer separated ring; the fixed ring is directly connected with the outer ring wall of the upper and lower fixed fluted discs of the stretching repetition unit, forming the integrated cylinder with the stretching repetition unit, that is, the mass transfer ring is fixed on the outer ring wall of the upper and lower fixed fluted discs of the stretching repetition unit; at this time, the fixed ring of the mass transfer ring rotates in a same direction as the movable fluted disc of the stretching repetition unit; the inner separated ring and the outer separated ring are arranged separately; separated mass transfer rings are rotated by the coaxial reverser or the separate motor in the axis of the transmission shaft of the stretching repetition unit; the inner separated ring is rotated by the coaxial reverser or the separate motor in the opposite direction to the movable fluted disc of the stretching repetition unit; the outer separated ring is rotated by the coaxial reverser or the separate motor in the opposite direction to the inner separated ring; the bottom plate is set under each separated mass transfer ring, and a spacing is left horizontally between the adjacent mass transfer rings, so that the polymer solution is pulled in the opposite direction in the different mass transfer rings.