NO119537B - - Google Patents
Download PDFInfo
- Publication number
- NO119537B NO119537B NO1386/68A NO138668A NO119537B NO 119537 B NO119537 B NO 119537B NO 1386/68 A NO1386/68 A NO 1386/68A NO 138668 A NO138668 A NO 138668A NO 119537 B NO119537 B NO 119537B
- Authority
- NO
- Norway
- Prior art keywords
- gas
- coil
- pipe
- ribs
- tube
- Prior art date
Links
- 239000007789 gas Substances 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000112 cooling gas Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000005476 soldering Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
- F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
- F25J1/0276—Laboratory or other miniature devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/028—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of at least one medium being helically coiled, the coils having a conical configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Kryogenisk kjøleapparat. Cryogenic cooling device.
Oppfinnelsen vedrører et kryogenisk kjøleapparat av den type som omfatter en varmeutveksler utført av et med ribber forsynt rør viklet i form av en kveil og gjennom hvilken kveil kjø-legass føres til en ekspansjonsdyse av Joule Thomson-typen, hvorfra gass med lavt trykk føres tilbake langsetter det med ribber forsynte rørs ytterflate,og hvor rørets innløpsende er i forbindelse med apparatets innløpsdel som tilføres gass under trykk. The invention relates to a cryogenic cooling apparatus of the type which comprises a heat exchanger made of a tube provided with ribs wound in the form of a coil and through which coil cooling gas is led to an expansion nozzle of the Joule Thomson type, from which low-pressure gas is led back to the setter the outer surface of the pipe provided with ribs, and where the inlet end of the pipe is in connection with the inlet part of the appliance which is supplied with gas under pressure.
Apparatet ifølge oppfinnelsen utmerker seg ved at kveilen har form av en avkortet kjegle med sin smaleste ende vendende mot ekspansjonsdysen, at kveilens kjeglevinkel er omtrent 90°, at kveilen er anbragt mellom indre og ytre kjegleformede flater samt at minst et filament er viklet i mellomrommet mellom ribbene og en av disse flater for å lede gassen til mer intim kontakt med rø-ret og ribbene. The device according to the invention is distinguished by the fact that the coil has the shape of a truncated cone with its narrowest end facing the expansion nozzle, that the cone angle of the coil is approximately 90°, that the coil is placed between inner and outer cone-shaped surfaces and that at least one filament is wound in the space between the ribs and one of these surfaces to guide the gas into more intimate contact with the pipe and the ribs.
Ved et kjøleapparat av den ovenfor nevnte type er det for oppnåelse av maksimal reduksjon av selve apparatets termiske kapa-sitet ønskelig at passasjen for kjølegassen med lavt trykk får et i strømmens retning kontinuerlig økende tverrsnitt. I denne henseende er den kjegleaktige form i samsvar med oppfinnelsen en vesentlig forbedring like overfor en kveil med form av en sylindrisk skrue. Det oppnås neppe noen vesentlig fordel i denne henseende ved økning av kjeglevinkelen, f.eks. ved å benytte en flat spiral, mens på den annen side bruken av en begrenset vinkel av størrel-sesordenen 90° i stor utstrekning forenkler (eller i det minste muliggjør) viklingen av en tråd eller et filament av f.eks. "Terylene" i det trekantaktige mellomrom med konkave sider mellom ribbene og de indre og ytre kjegleformede flater. En slik vikling er velkjent i forbindelse med skrueformede varmeutvekslere og tje-ner til å avlede gassen slik at denne passerer i intim kontakt med ribbene og røret. In the case of a cooling device of the type mentioned above, in order to achieve maximum reduction of the thermal capacity of the device itself, it is desirable that the passage for the low-pressure cooling gas has a continuously increasing cross-section in the direction of the flow. In this respect, the conical shape according to the invention is a significant improvement over a coil having the shape of a cylindrical screw. There is hardly any significant advantage in this respect by increasing the cone angle, e.g. by using a flat spiral, while on the other hand the use of a limited angle of the order of magnitude 90° greatly simplifies (or at least enables) the winding of a wire or filament of e.g. The "teryls" in the triangular space with concave sides between the ribs and the inner and outer cone-shaped surfaces. Such a winding is well known in connection with screw-shaped heat exchangers and serves to divert the gas so that it passes in intimate contact with the ribs and the tube.
Et annet karakteristisk trekk ved apparatet ifølge oppfinnelsen går ut på at apparatets innløpsdel har stor masse og en passasje for gassen med meget større tverrsnitt enn rørets, at rørets innløpsende er utført uten ribber og tett forbundet med innløpsde-len for å sikre godt varmeutvekslingsforhold mellom nevnte del og røret og at forbindelsen mellom rørets innløpsparti og apparatets innløpsdel omfatter en ytterligere masse som bidrar til varmespred-ning, f.eks. en klump av loddemateriale. Another characteristic feature of the device according to the invention is that the inlet part of the device has a large mass and a passage for the gas with a much larger cross-section than that of the pipe, that the inlet end of the pipe is made without ribs and tightly connected to the inlet part to ensure a good heat exchange ratio between said part and the pipe and that the connection between the inlet part of the pipe and the inlet part of the appliance comprises an additional mass which contributes to heat dissipation, e.g. a lump of solder.
Ønskeligheten av dette trekk kommer fra det forhold at nesten hele trykktapet på tvers av ekspansjonsdysen opptrer ved varmeutvekslerens kalde ende når apparatet er i drift. Derfor re-presenterer ladningen av røret med høytrykksgass en kompresjon når først apparatet er satt igang, og hvis gassen beholdt hele kompresjonsvarmen, ville gassens temperatur øke til et meget høyt nivå, f.eks. i størrelsesordenen 1000°K. I det med ribber forsynte parti av røret som danner varmeutveksleren absorberes varmen raskt og den resulterende temperatur av gassen og røret kan være bare noen få grader høyere enn begynnelsestemperaturen, idet varmen fjernes raskt ved hjelp av gassen med lavt trykk. The desirability of this feature comes from the fact that almost all of the pressure loss across the expansion nozzle occurs at the cold end of the heat exchanger when the apparatus is in operation. Therefore, the charging of the tube with high-pressure gas represents a compression once the apparatus is started, and if the gas retained all the heat of compression, the temperature of the gas would rise to a very high level, e.g. in the order of 1000°K. In the finned portion of the tube forming the heat exchanger, heat is rapidly absorbed and the resulting temperature of the gas and tube may be only a few degrees higher than the initial temperature, the heat being quickly removed by the low pressure gas.
På den annen side vil temperaturen av rørledningen mellom innløpskammeret og det med ribber forsynte parti som utgjør varmeutveksleren øke, og denne varme kan bare fjernes ved hjelp av høy-trykksgassen, hvorved apparatets effektivitet reduseres. Denne ulempe har man dog overvunnet ved hjelp av et foretrukket trekk av oppfinnelsen ved termisk forankring av rørpartiet mellom varmeutveksleren og innløpet i kjølerens hoveddel. On the other hand, the temperature of the pipeline between the inlet chamber and the finned part which constitutes the heat exchanger will increase, and this heat can only be removed by means of the high-pressure gas, whereby the efficiency of the apparatus is reduced. However, this disadvantage has been overcome by means of a preferred feature of the invention by thermally anchoring the pipe section between the heat exchanger and the inlet in the main part of the cooler.
Oppfinnelsen skal forklares nærmere nedenfor ved hjelp av et"eksempel og under henvisning til tegningen som viser et lengde-snitt gjennom et kryogenisk apparat ifølge oppfinnelsen. The invention will be explained in more detail below by means of an example and with reference to the drawing which shows a longitudinal section through a cryogenic apparatus according to the invention.
Oppfinnelsen skal forklares i forbindelse med et kryogenisk kjøleapparat som er innrettet til å redusere temperaturen av en liten komponent eller vekt i løpet av noen få sekunder til en .størrelsesorden på 8 0°K og holde komponenten på denne temperatur i løpet av ett eller to minutter, og for å oppnå dette tilføres kjøleren en ladning kjølegass, såsom luft, oxygen, nitrogen eller argon under høyt trykk. The invention will be explained in connection with a cryogenic cooling apparatus which is adapted to reduce the temperature of a small component or weight within a few seconds to an order of magnitude of 80°K and to maintain the component at this temperature within one or two minutes , and to achieve this, a charge of cooling gas, such as air, oxygen, nitrogen or argon under high pressure, is supplied to the cooler.
Kjøleren omfatter et ytre ringformet legeme eller en hoveddel 10 som er antatt anordnet med sin akse forløpende vertikalt og hvis nedre del 11 inneholder eller er i berøring med den komponent som skal nedkjøles og som har i seg en sentral boring 12 som utgjør et samlekammer for et forråd av væskeformet kjølemiddel. Over samlekammeret er boringen utvidet slik at den danner en forsenkning 15 med form av en avkortet kjegle med.kjeglevinkel på ca. 90°. Innenfor forsenkningen, men i avstand fra dennes vegger, finnes en propp 16 utformet som en avkortet kjegle hensiktsmessig i form av et hult kammer 17 av rustfritt stål og hvis topp består av en paraplyformet koblings.del 18 med en stamme 19 som er utført som en kobling 2 0 for tilkobling til et gassinnløp og som inneholder et gassfilter 21. Et rør 2 5 med tynne ribber er viklet som en kveil på proppens kjegleformede ytterflate. Kveilens indre ende 26 er uten ribber og strekker seg diametralt over proppen og er festet til denne og lukket ved sin ytterste ende, mens et lite hull er dannet i rørets vegg og utgjør en ekspansjonsdyse. Røret er viklet som en kjegleformet kveil på den tilsvarende formede proppoverflate sammen med en tråd eller et filament 3 0 av "Terylene" som er viklet i mellomrommene mellom ribbene og tilstøtende viklinger og de tilstøtende flater av proppen. En lignende vikling 31 av "Terylene"-filament er viklet i de tilsvarende ytre spor mellom tilstøtende vindinger av det med ribber forsynte rør. Proppen innsettes i den kjegleformede forsenkning i den ytre ho- The cooler comprises an outer ring-shaped body or a main part 10 which is assumed to be arranged with its axis running vertically and whose lower part 11 contains or is in contact with the component to be cooled and which has in it a central bore 12 which forms a collecting chamber for a storage of liquid refrigerant. Above the collection chamber, the bore is extended so that it forms a recess 15 in the shape of a truncated cone with a cone angle of approx. 90°. Within the recess, but at a distance from its walls, there is a plug 16 designed as a truncated cone, suitably in the form of a hollow chamber 17 of stainless steel and whose top consists of an umbrella-shaped connecting part 18 with a stem 19 which is designed as a coupling 20 for connection to a gas inlet and which contains a gas filter 21. A tube 25 with thin ribs is wound like a coil on the plug's cone-shaped outer surface. The inner end 26 of the coil is without ribs and extends diametrically over the stopper and is attached to this and closed at its outermost end, while a small hole is formed in the wall of the tube and constitutes an expansion nozzle. The tube is wound as a conical coil on the correspondingly shaped plug surface together with a thread or filament 30 of "Terylenes" which is wound in the spaces between the ribs and adjacent turns and the adjacent surfaces of the plug. A similar winding 31 of "Terylene" filament is wound in the corresponding outer grooves between adjacent turns of the ribbed tube. The plug is inserted into the cone-shaped recess in the outer ho-
veddel. Det kveilede rørs ytre ende strekker seg radialt inn i koblingen ved hjelp av hvilken det er forbundet med en tilførsels- bet. The outer end of the coiled tube extends radially into the coupling by means of which it is connected to a supply
ledning for gass. line for gas.
Den lengde av røret som er uten ribber er innleiret i en The length of the pipe that is without ribs is embedded in a
betydelig masse 35 av loddemetall som forbinder røret med appara- considerable mass 35 of solder connecting the tube to the apparatus
tets hoveddel og tilveiebringer en termisk sammenkobling av de to deler. Et lokk 36 er ført inn på stammen 19 og hoveddelen 10 og det finnes tetningsringer 37 og 38 mellom lokket og hhv. stammen og hovedlegemet. Lokket er forsynt med en utløpsforbindelse 3 9 t's main body and provides a thermal connection of the two parts. A lid 36 is inserted onto the stem 19 and the main part 10 and there are sealing rings 37 and 38 between the lid and, respectively. the stem and the main body. The lid is provided with an outlet connection 3 9
for lavtrykksgass. for low pressure gas.
Apparatet virker på vanlig måte. Når gassen under høyt The device works normally. When the throttle under high
trykk slippes i innløpet, strømmer den langs en spiralformet bane gjennom kveilen mot kveilens indre ende hvor den slipper ut gjen- pressure is released in the inlet, it flows along a spiral path through the coil towards the inner end of the coil where it is released again
nom ekspansjonsdysen og strømmer derfra utover langs en diverge- nom the expansion nozzle and flows from there outward along a diverging
rende bane gjennom mellomrommet mellom den kjegleformede forsenk- running path through the space between the cone-shaped recess
ning og den kjegleformede propp i intim kontakt med ribbene og rø- ning and the cone-shaped stopper in intimate contact with the ribs and
ret for avkjøling av den innstrømmende gass. I løpet av få sekun- right for cooling the inflowing gas. Within a few seconds-
der begynner kjølegassen å gå over til væske, og et forråd med flytende kjølemiddel oppsamles i samlekammeret for å holde tempe- there, the refrigerant gas begins to change to liquid, and a supply of liquid refrigerant is collected in the collection chamber to maintain the temperature
raturen innenfor det forlangte område i en ytterligere tidsperiode etter at forrådet av gass er oppbrukt. rate within the required range for a further period of time after the supply of gas has been used up.
Massen 35 av loddemetall som er i forbindelse med koblings- The mass 35 of solder which is in connection with the connecting
delen 18 virker som en varmespreder som allerede forklart og hin- part 18 acts as a heat spreader as already explained and
drer utilbørlig økning av temperaturen i det med ribber forsynte parti av røret 2 5 når gassen i røret komprimeres til å begynne med. causes an undue increase in the temperature in the finned part of the pipe 2 5 when the gas in the pipe is initially compressed.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1735667 | 1967-04-14 | ||
GB48234/67A GB1216189A (en) | 1967-04-14 | 1967-04-14 | Improvements relating to cryogenic cooling apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
NO119537B true NO119537B (en) | 1970-06-01 |
Family
ID=26252633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO1386/68A NO119537B (en) | 1967-04-14 | 1968-04-09 |
Country Status (9)
Country | Link |
---|---|
US (1) | US3495419A (en) |
JP (1) | JPS4844423B1 (en) |
BE (1) | BE713685A (en) |
CH (1) | CH481353A (en) |
DE (1) | DE1751155A1 (en) |
FR (1) | FR1559510A (en) |
LU (1) | LU55877A1 (en) |
NL (1) | NL6805104A (en) |
NO (1) | NO119537B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3696813A (en) * | 1971-10-06 | 1972-10-10 | Cryomedics | Cryosurgical instrument |
GB1477666A (en) * | 1974-05-03 | 1977-06-22 | Hymatic Eng Co Ltd | Cooling apparatus |
US3926011A (en) * | 1974-06-24 | 1975-12-16 | Bendix Corp | Head assembly for a cryogenic cooler |
JPS5135622U (en) * | 1974-09-10 | 1976-03-17 | ||
DE3337194A1 (en) * | 1983-10-13 | 1985-04-25 | Telefunken electronic GmbH, 7100 Heilbronn | HOUSING FOR AN OPTOELECTRONIC SEMICONDUCTOR COMPONENT |
DE3337195A1 (en) * | 1983-10-13 | 1985-04-25 | Telefunken electronic GmbH, 7100 Heilbronn | ARRANGEMENT FOR AN ELECTRONIC COMPONENT OPERATING AT LOW TEMPERATURES |
FR2602316B1 (en) * | 1986-07-31 | 1988-08-26 | Air Liquide | JOULE-THOMSON COOLER, MANUFACTURING METHOD AND CRYOSTAT COMPRISING SUCH A COOLER |
FR2611870B1 (en) * | 1987-03-06 | 1989-06-09 | Air Liquide | MINIATURE JOULE-THOMSON EXPANSION COOLER AND MANUFACTURING METHOD THEREOF |
EP3483388A1 (en) * | 2017-11-08 | 2019-05-15 | Robert Bosch GmbH | Radial piston motor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3018643A (en) * | 1959-09-15 | 1962-01-30 | Philco Corp | Cryogenic refrigerating means |
US3095711A (en) * | 1962-01-31 | 1963-07-02 | Jr Howard P Wurtz | Double cryostat |
GB1149962A (en) * | 1965-07-30 | 1969-04-23 | British Oxygen Co Ltd | Gas liquefier |
-
1968
- 1968-04-09 NO NO1386/68A patent/NO119537B/no unknown
- 1968-04-10 FR FR1559510D patent/FR1559510A/fr not_active Expired
- 1968-04-10 NL NL6805104A patent/NL6805104A/xx unknown
- 1968-04-10 CH CH529468A patent/CH481353A/en not_active IP Right Cessation
- 1968-04-11 US US720660A patent/US3495419A/en not_active Expired - Lifetime
- 1968-04-11 LU LU55877D patent/LU55877A1/xx unknown
- 1968-04-11 DE DE19681751155 patent/DE1751155A1/en active Pending
- 1968-04-12 BE BE713685D patent/BE713685A/xx unknown
- 1968-04-13 JP JP43024709A patent/JPS4844423B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1751155A1 (en) | 1971-05-19 |
LU55877A1 (en) | 1968-07-09 |
BE713685A (en) | 1968-08-16 |
JPS4844423B1 (en) | 1973-12-25 |
CH481353A (en) | 1969-11-15 |
US3495419A (en) | 1970-02-17 |
FR1559510A (en) | 1969-03-07 |
NL6805104A (en) | 1968-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO119537B (en) | ||
SE442779B (en) | MELT HEATING CUMULATOR WITH A HEAT TRANSMISSION FLUID IN DIRECT CONTACT WITH THE STORAGE MEDIUM | |
WO2017092652A1 (en) | Subcooler and air-conditioner having same | |
CN109556433A (en) | A kind of high efficient heat exchanging structure of compressed air freezing type drier | |
US2145774A (en) | Apparatus for freezing ice | |
US3728868A (en) | Cryogenic refrigeration system | |
US3590597A (en) | Cooling apparatus employing the joule-thomson effect | |
CN104329868B (en) | Semiconductor refrigeration refrigerator and cold-end heat exchange device thereof | |
CN202048734U (en) | Tube ice maker supplying liquid in stable storage manner | |
US2278226A (en) | Fluid cooler | |
CN109114846A (en) | Heat-exchanger rig and heat-exchange system | |
US2450735A (en) | Apparatus for refrigeration of liquors | |
EP1264150B1 (en) | Regulator with receiver for refrigerators and heatpumps | |
JP6945202B2 (en) | Cyclone type freezer and heat pump system equipped with the cyclone type freezer | |
US20160158900A1 (en) | Vortex Tube | |
CN108534416A (en) | It is a kind of continuously to go out ice formula Ice maker from seawater and ice making technique | |
CN204739807U (en) | Subcooling device of shell and tube condenser | |
CN106403343B (en) | A kind of air source cold-hot hydro-thermal pumping system | |
FR2415274A1 (en) | FINNED COIL AND ITS APPLICATION TO ANY REFRIGERATION SYSTEM EQUIPPED WITH A REGULATOR SUCH AS AN AIR COOLER | |
CN104481440B (en) | Solid and liquid phase change cold source of freezing and pressure-maintaining coring drilling tool | |
CN207922617U (en) | A kind of heat pump system with drip tray ice-melt pipeline | |
CN106288468A (en) | Vertical downstream directly contacts the air-cooled refrigeration system of auxiliary of condensation | |
US3020729A (en) | Valve for refrigerating medium evaporators | |
CN108826727A (en) | Mixed working medium refrigerating system capable of adjusting working medium components | |
US3086373A (en) | Fluid dispensing device |