公开(公告)号：US3626046A

公开(公告)日：1971-12-07

申请号：US88554569

申请日：1969-12-16

申请人： INST PLASMAPHYSIK GMBH

发明人： KRAUSE HORST ,  SIGEL RICHARD

IPC分类号： B23K26/12 ,  F25J1/00 ,  H05H1/22 ,  H05H6/00 ,  B29C13/00 ,  B29D3/00

CPC分类号： F25J1/0221 ,  B23K26/12 ,  B23K26/1224 ,  F25J1/001 ,  F25J1/0276 ,  F25J2205/20 ,  F25J2290/42 ,  G21B1/19 ,  H05H6/00 ,  Y02E30/16 ,  Y10S376/916

摘要： A method for making a thin, self-supporting disc from a substance, such as hydrogen, which is a gas at room temperature said disc being eventually located in a vacuum. A metal member is provided which defines a hole having a diameter small enough that at a sufficiently low temperature a liquid film of the substance will form in or across the hole due to surface tension. The atmosphere surrounding the hole is first reduced to a high vacuum and then the space or zone surrounding the hole is made smaller. A predetermined quantity of the gas to be solidified is brought into this lesser space and a cryogen cools the gas below its boiling point. This causes the gas to condense on the surface of the metal member and form a liquid film in the hole. The liquid film is further cooled until it solidifies in the form of a thin, self-supporting disc. An apparatus including a diffusion pump, a vacuum chamber, and a reciprocating glass bell within the vacuum chamber is provided to carry out the method.

公开(公告)号：US3609984A

公开(公告)日：1971-10-05

申请号：US3609984D

申请日：1969-04-25

申请人： LEO GARWIN

发明人： GARWIN LEO

IPC分类号： F25J1/02

CPC分类号： F25J1/0205 ,  F25J1/0005 ,  F25J1/0007 ,  F25J1/001 ,  F25J1/0042 ,  F25J1/005 ,  F25J1/0052 ,  F25J1/0065 ,  F25J2215/32 ,  F25J2270/16 ,  Y10S62/923 ,  Y10S62/933

摘要： A PROCESS FOR LIQUEFYING HYDROGEN, HELIUM AND NEON MORE EFFICIENTLY AND ECONOMICALLY THAN BY METHODS PREVIOUSLY PRACTICED, WHICH PROCESS INCLUDES THE STEPS OF COMPRESSING THE GAS (HYDROGEN, HELIUM OR NEON) TO A PRESSURE SUCH THAT, UPON ISOBARICALLY COOLING THE THUS COMPRESSED GAS, A TEMPERATURE ABOVE THE CRTITCAL TEMPERATURE OF THE GAS IS REACHED AT WHICH THE GAS CAN BE ISENTRIOPICALLY EXPANDED TO YIELD SUBSTANTIALLY A SINGLE LIQUID PHASE AT ATMOSPHERIC PRESSURE; THEN ISOBARICALLY COOLING THE GAS AT THIS PRESSURE TO SUCH TEMPERATURE; AND FINALLY ISENTROPICALLY EXPANDING THE GAS TO SUBSTANTIALLY ATMOSPHERIC PRESSURE THROUGH A WORK ENGINE.

公开(公告)号：US3521458A

公开(公告)日：1970-07-21

申请号：US3521458D

申请日：1967-07-19

申请人： AIR REDUCTION

发明人： HUIBERS DERK TH A ,  HEMSTREET RUSSELL A ,  HOVER HOWARD K

IPC分类号： F25J1/00

CPC分类号： F25J1/001 ,  F25J1/0052 ,  F25J1/0065 ,  F25J1/0204 ,  F25J1/0276 ,  F25J2205/20

公开(公告)号：US3398545A

公开(公告)日：1968-08-27

申请号：US52508166

申请日：1966-02-04

申请人： CONCH INT METHANE LTD

发明人： NELSON WARREN L ,  NORTON CHRISTOPHER E

IPC分类号： C01B3/50 ,  F17C9/04 ,  F25J1/02 ,  F25J3/02

CPC分类号： F25J1/0204 ,  C01B3/501 ,  C01B2203/0405 ,  F17C9/04 ,  F17C2205/0323 ,  F17C2221/012 ,  F17C2221/014 ,  F17C2221/032 ,  F17C2221/033 ,  F17C2221/035 ,  F17C2223/0153 ,  F17C2223/0161 ,  F17C2227/0135 ,  F17C2227/0157 ,  F17C2227/0393 ,  F17C2265/015 ,  F25J1/001 ,  F25J1/0052 ,  F25J1/0072 ,  F25J1/0221 ,  F25J1/0229 ,  F25J1/0236 ,  F25J1/0268 ,  F25J3/0214 ,  F25J3/0219 ,  F25J3/0233 ,  F25J3/0238 ,  F25J3/0242 ,  F25J3/0252 ,  F25J2200/80 ,  F25J2205/30 ,  F25J2210/12 ,  F25J2210/62 ,  F25J2215/62 ,  F25J2215/64 ,  F25J2270/42 ,  F25J2270/904 ,  Y02E60/321 ,  Y02P90/45 ,  Y10S62/932

公开(公告)号：US3375076A

公开(公告)日：1968-03-26

申请号：US33590664

申请日：1964-01-06

申请人： AIR PROD & CHEM

发明人： VANDER AREND PETER C

IPC分类号： C01B3/00 ,  F25B9/00 ,  F25J1/00 ,  F25J1/02

CPC分类号： C01B3/0089 ,  F25B9/004 ,  F25J1/001 ,  F25J1/0035 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0202 ,  F25J1/0224 ,  F25J2210/42 ,  F25J2245/90 ,  F25J2270/06

公开(公告)号：US3300991A

公开(公告)日：1967-01-31

申请号：US38075464

申请日：1964-07-07

申请人： UNION CARBIDE CORP

发明人： CARNEY RICHARD R

IPC分类号： F17C13/02 ,  F25J1/02

CPC分类号： F25J1/021 ,  F17C13/02 ,  F25J1/0005 ,  F25J1/0007 ,  F25J1/001 ,  F25J1/0012 ,  F25J1/0015 ,  F25J1/0017 ,  F25J1/002 ,  F25J1/0022 ,  F25J1/0027 ,  F25J1/005 ,  F25J1/0065 ,  F25J1/0067 ,  F25J1/007 ,  F25J1/0072 ,  F25J1/0082 ,  F25J1/0097 ,  F25J1/0204 ,  F25J1/0205 ,  F25J1/0208 ,  F25J1/0265 ,  F25J1/0288 ,  F25J1/0298 ,  F25J2210/02 ,  F25J2270/90 ,  F25J2280/02

公开(公告)号：US3194026A

公开(公告)日：1965-07-13

申请号：US31856463

申请日：1963-10-24

申请人： FLEUR CORP

发明人： LA FLEUR JAMES K

IPC分类号： F02C1/10 ,  F25B9/06 ,  F25B27/00 ,  F25B40/00 ,  F25J1/02

CPC分类号： F25B27/00 ,  F02C1/10 ,  F25B9/06 ,  F25B40/00 ,  F25J1/0007 ,  F25J1/001 ,  F25J1/0012 ,  F25J1/0015 ,  F25J1/0017 ,  F25J1/002 ,  F25J1/0022 ,  F25J1/005 ,  F25J1/0062 ,  F25J1/0065 ,  F25J1/0067 ,  F25J1/0097 ,  F25J1/0281 ,  F25J1/0287 ,  F25J1/0288

公开(公告)号：US2937076A

公开(公告)日：1960-05-17

申请号：US70258257

申请日：1957-12-13

申请人： BEECH AIRCRAFT CORP

发明人： CLASS CHARLES R ,  SPERO RAYMOND P ,  MCINTOSH GLEN E

IPC分类号： C01B3/00 ,  F25J1/02

CPC分类号： F25J1/0224 ,  C01B3/0089 ,  F25J1/001 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0045 ,  F25J2210/06 ,  F25J2210/42

公开(公告)号：US20240318904A1

公开(公告)日：2024-09-26

申请号：US18405764

申请日：2024-01-05

申请人： H2CREO Corp.

发明人： JONG H. BAIK ,  HO-MYUNG CHANG ,  HYUNG JIN KIM

IPC分类号： F25J1/00 ,  F25J1/02

CPC分类号： F25J1/001 ,  F25J1/0065 ,  F25J1/0262 ,  F25J2205/82 ,  F25J2245/02

摘要： The present disclosure relates to a hydrogen liquefaction system and hydrogen liquefaction method optionally enabling O-P conversion in a hydrogen liquefaction process, and may include: a hydrogen pipe, where gaseous hydrogen is introduced at a front end, heat exchange occurs in a heat exchange section leading to liquefaction of gaseous hydrogen into liquid hydrogen, and liquefied liquid hydrogen can be discharged at a rear end; a cooling cycle device that is in thermal contact with the heat exchange section of the hydrogen pipe so as to perform heat exchange with the heat exchange section of the hydrogen pipe such that gaseous hydrogen can be liquefied into liquid hydrogen; and an Ortho-Para (O-P) converter formed in the hydrogen pipe, converting a ratio of ortho-hydrogen to para-hydrogen in a process of liquefying gaseous hydrogen into liquid hydrogen.

公开(公告)号：US20240263871A1

公开(公告)日：2024-08-08

申请号：US18023715

申请日：2022-07-07

申请人： ZHEJIANG UNIVERSITY

发明人： XIAOQIN ZHI ,  LIMIN QIU ,  TAO WEI ,  XIN CHEN ,  KAI WANG ,  SHIRAN BAO

IPC分类号： F25J1/00 ,  F25J1/02

CPC分类号： F25J1/004 ,  F25J1/0007 ,  F25J1/001 ,  F25J1/0065 ,  F25J1/0067 ,  F25J1/0202 ,  F25J1/0242 ,  F25J1/0264 ,  F25J1/0276

摘要： The present invention discloses a hydrogen or helium throttling liquefaction system using direct current (DC) flow from the cold and hot ends of the regenerative cryocoolers, which belongs to the technical field of refrigeration and cryogenics. It includes a regenerative cryocooler module, a hot-end DC flow module, a cold-end DC flow module, a throttling liquefaction module, and a gas-phase circulation module. The modules are interconnected to form a closed loop for the flow of hydrogen or helium working fluid. DC flow is introduced from the cold and hot ends of the regenerative cryocooler through the DC flow pipelines and DC flow valves. The hot-end DC flow exchanges heat with the reflowing low-temperature working fluid and is cooled down. After that, it mixes with the cold-end DC flow and enters the throttling liquefaction module to generate liquid phase through throttling and liquefaction. After the liquid phase has output cooling capacity, it flows through the gas-phase circulation module and then enters the back-pressure chamber of the compressor to complete the cycle. Compared with the existing small-scale hydrogen and helium liquefaction technology using regenerative cryocoolers, the present invention has the advantages of simple structure, easy installation, high heat transfer efficiency and liquefaction efficiency of the system.