EP 3441529 B1 20200930 - DEVICE AND METHOD FOR THE FREEZING OF SOIL
Title (en)
DEVICE AND METHOD FOR THE FREEZING OF SOIL
Title (de)
VORRICHTUNG UND VERFAHREN ZUM GEFRIEREN VON ERDREICH
Title (fr)
DISPOSITIF ET PROCÉDÉ DE CONGÉLATION DE SOL
Publication
Application
Priority
EP 17020351 A 20170810
Abstract (en)
[origin: US2019048549A1] A method and device for freezing the ground are disclosed, including a freezing lance which extends along a longitudinal axis and has a pipe mantle that encloses an interior space, wherein the ground surrounding the freezing lance can be cooled by the refrigerant present in a first section of the interior space, a line for supplying the liquid refrigerant in the first section of the interior space, wherein the device has a first end section with a first opening for removing an exhaust gas formed by evaporation of the refrigerant from the interior space, wherein the interior space has a second section for holding the exhaust gas, wherein heat is exchangeable between the exhaust gas and the pipe mantle in the second section, so that the exhaust gas can be heated by heat exchange with the ground adjacent to the freezing lance.
IPC 8 full level
E02D 19/18 (2006.01); E02D 3/115 (2006.01)
CPC (source: CN EP US)
E02D 3/115 (2013.01 - EP US); F25D 3/10 (2013.01 - CN); F25D 29/00 (2013.01 - CN)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3441529 A1 20190213; EP 3441529 B1 20200930; CN 109387002 A 20190226; PL 3441529 T3 20210406; SG 10201806676V A 20190328; US 10655293 B2 20200519; US 2019048549 A1 20190214
DOCDB simple family (application)
EP 17020351 A 20170810; CN 201810901652 A 20180809; PL 17020351 T 20170810; SG 10201806676V A 20180806; US 201816047169 A 20180727