TUBULAR ELECTRICALLY-BAROMETRIC UNIT Russian patent published in 2019 - IPC B01D61/46 

FIELD: electrical engineering.

SUBSTANCE: invention relates to design of tubular-type membrane apparatuses. Device design consists of case with end and mating flanges, tube grids, unipolar electrodes – anode and cathode, cathode and anode membranes, anode and cathode permeate collectors, terminals of the device for supplying electric current, nozzles of input of initial solution and withdrawal of retentate, anode and cathode permeate, gaskets, bolts, nuts and washers, annular gaskets, turbulence promoter grid, tubes, wherein end flanges are made in form of flat round covers, on the outer side of which in the centre there are through holes with a thread, into which terminals of the device for supplying electric current are screwed, concerning monopolar electrodes – anode and cathode, pressure grids are sealed along circumference edge through sealing gaskets along landing surface of "tenon-slot" type with tube grids, between tube grids and pressure grids there is a gap with width of 7 mm, which forms collectors of anode and cathode permeate, connected to channels of anode and cathode permeate, located in section of apparatus at angles 3π/2 to horizontal axis and coinciding with holes in outlets of anode and cathode-ray permeate, threaded into pressure grates, cylindrical housing with mating flanges is connected through a spacer with a tube grid on the landing. Surface of "tenon-slot" type, in tube sheets there are through and non-through holes for pipes with out-of-parallel near-anode and cathode membranes, sealing of tubes with tube grids is made through annular gaskets, tubes with anode and cathode membranes from one and the other end extend through the thickness of tube grates to their edge and middle and to their centre and edge, respectively, unions of inlet of initial solution and withdrawal of retentate in apparatus section are located at angles 3π/2 and π/2 to horizontal axis, respectively, and along the lengths of the cylindrical housing forming the unions are located at distance of 50 mm from the landing surface of the "tenon-slot" type through the gasket with the tube grid, turbulence promoter grid is made in the form of a set of rectangular elements of a woven mesh, connected to each other at angle of 90 degrees so that in free space in the section of this connection there formed are rectangles, in the centre of which there pass tubes with anode and cathode membranes, sealing of tube plates through sealing gaskets and gaskets with pressure grids and cylindrical housing is performed by means of tightening end flanges and mating flanges by means of bolts, washers and nuts, which are located on end flanges in their section at angles to horizontal axis 0, π/3, 2π/3, π, 4π/3 and 5π/3 and are located from end of end flanges at distance of 15 mm, is characterized by that on end flanges in their section at angles to horizontal axis 2π/3, π/2, from outer side, also there are through holes with thread, into which are screwed-in connecting the inlet of initial solution 21 and retentate discharge union 22 respectively, which are located from edge of end flanges at distance of 45 mm, channels for inlet of initial solution and retentate outlet are also formed in space between end flanges, dielectric bushings 33 and gaskets 4, wherein gaskets 4 are equipped with eighty eight holes, as in tube plates 3 and pressure grates 5, 6, which are monopolar electrodes – anode and cathode respectively, all holes of gaskets 4 coaxially coincide with holes of tubes 26, inside which there are anode and cathode membranes 28, 30, and outside anode, cathode drain grids 32, 31, which in staggered order, only with one of end surfaces, are connected to pressure grates 5, 6 respectively and fixed in them by means of annular gaskets 19.

EFFECT: increased area of separation of solutions, increased efficiency and quality of separation of solutions, reduced material consumption per unit volume of apparatus.

1 cl, 7 dwg