US 12,392,557 B2
Plate of plate heat exchangers
Pessach Seidel, Ilit (IL)
Appl. No. 16/972,810
Filed by Pessach Seidel, Ilit (IL)
PCT Filed Jun. 7, 2019, PCT No. PCT/IL2019/050659
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2019/234756, PCT Pub. Date Dec. 12, 2019.
Claims priority of provisional application 62/838,332, filed on Apr. 25, 2019.
Claims priority of application No. 259897 (IL), filed on Jun. 7, 2018; application No. 260785 (IL), filed on Jul. 25, 2018; application No. 261690 (IL), filed on Sep. 9, 2018; and application No. 262330 (IL), filed on Oct. 11, 2018.
Prior Publication US 2021/0247143 A1, Aug. 12, 2021
Int. Cl. F28D 9/00 (2006.01); F28F 3/04 (2006.01); F28F 3/06 (2006.01)
CPC F28D 9/005 (2013.01) [F28D 9/0056 (2013.01); F28F 3/046 (2013.01); F28F 3/06 (2013.01); F28F 2275/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A plate of a plate heat exchanger that comprises a Heat Transition Zone (HTZ), said HTZ comprises at least one area of Extra Low Wavy Zone (ELWZ) with one or more waves and supports, wherein each one of said one or more waves comprises: low peaks (LP′) equal to or lower along (Z) axis than peaks (P′); low peaks (LP″) equal to or lower along (Z) axis than peaks (P″); high valleys (HV′), equal to or higher along (Z) axis than valleys (V′); and high valleys (HV″), equal to or higher along (Z) axis than valleys (V″),
wherein:
said one or more waves generally oscillate to a north of the plate;
said ELWZ is characterized by waves which take any shape, wavelength, direction and amplitude while lying between a peak plane and a valley plane, ELWZ waves are either evenly spaced or irregularly spaced, leaving any vertical space, also denoted by window, between the ELWZ low peaks and the peak plane, or between the ELWZ high valleys and valley plane; waves in the ELWZ are either identical in direction and/or amplitude or different from one another in direction and/or amplitude;
said ELWZ comprises protrusions rising to peak plane height b and depressions falling to valley plane height 0 taking any shape, said protrusions and depressions provide extra said supports;
when ELWZ waves have low peaks (LP) lines and high valleys (HV) lines taking a zigzag form, such points of support are found where the lines zigzag, i.e., in every second change of angle, such that peak points in one peak line and valley points in an adjacent valley line lay on the same line when projected onto the valley plane, and approximately straight lines connecting said peak point of support and an adjacent valley point of support proved extra support for said ELWZ; and
said LP lines and HV lines taking a zigzag form generally transversally.