DE293379C - - Google Patents
Info
- Publication number
- DE293379C DE293379C DENDAT293379D DE293379DA DE293379C DE 293379 C DE293379 C DE 293379C DE NDAT293379 D DENDAT293379 D DE NDAT293379D DE 293379D A DE293379D A DE 293379DA DE 293379 C DE293379 C DE 293379C
- Authority
- DE
- Germany
- Prior art keywords
- refrigerant
- point
- condenser
- thin
- risk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000007704 transition Effects 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Es handelt sich um eine neuartige Klein-Kältemaschine, die mit einem Kältemittel arbeitet, welches sich schon bei ganz geringem Druck (etwa .einer halben Atmosphäre) verflüssigt. Der Vorteil des Betriebes mit so geringem Druck ist gerade bei Klein-Kältemaschinen ein ganz bedeutender. Nun haben aber Kältemittel solcher Art fast alle die Eigentümlichkeit, daß sie in Verbindung mit den geringsten anderen Bestandteilen, die sie entweder schon in sich bargen oder in den Hohlkörpern der Kältemaschine aufnahmen, zur Eisbildung neigen. Das hat Störungen im Betriebe zur Folge und vermindert den Wert solcher Kältemittel. Die Gefahr ungewollter Eisbildung ist naturgemäß am größten an der Stelle, wo das Kältemittel zu verdampfen beginnt, also beim Eintritt in den Verdampfer. An dieser Stelle, wo die Reguliervorrichtung sein muß, ist der Querschnitt des Durchganges am kleinsten und deshalb die Neigung zur Eisbildung in und hinter dieser Reguliervorrichtung am größten.It is a new type of small refrigeration machine, which works with a refrigerant that liquefies at very low pressure (about half an atmosphere). The advantage of operating at such a low pressure is especially with small refrigeration machines a very important one. But now almost all refrigerants of this kind have the peculiarity that they are in conjunction with the slightest other constituent that they either already buried in itself or received in the hollow bodies of the refrigeration machine, for Tend to form ice. This leads to disruptions in the company and reduces the value such refrigerant. The risk of unwanted ice formation is naturally greatest at the Place where the refrigerant begins to evaporate, i.e. when it enters the evaporator. At this point, where the regulating device must be, the cross-section of the passage is at smallest and therefore the tendency for ice to form in and behind this regulating device the biggest.
Die vorliegende Erfindung hat den Zweck, die beschriebene, in der Praxis beobachtete Gefahr zu beseitigen, indem die Kältemittel-Einlaßvorrichtung zwischen Kondensator und Verdampfer eine eigenartige Form und sehr dünne Wandung erhält und von einem Wärmemittel umspült wird, so daß eine Eisbildung an dieser gefährlichen Stelle verhütet ist. Auf dem weiteren Wege ist die Gefahr erheblich geringer, da die Geschwindigkeit des verdampfenden Kältemittels in den größeren Durchgängen kleiner ist und sich die schädlichen Bestandteile auf dem weiteren Wege absetzen können. Das Einlaßorgan erhält zur sicheren Erreichung vorbesagten Zweckes eine Einschnürung an- der Übertrittsstelle des Kältemittels derartig, daß das umspülende Wärmemittel so nahe wie nur möglich an die Stelle der Gefriergefahr gelangen kann.The present invention aims to address the described hazard observed in practice to eliminate by placing the refrigerant inlet device between the condenser and evaporator receives a peculiar shape and very thin wall and is surrounded by a warming medium, so that ice is formed on this dangerous place is prevented. On the further way the risk is considerably lower, because the speed of the evaporating refrigerant in the larger passages is smaller and the harmful components can settle on the further way. That In order to safely achieve the aforementioned purpose, the inlet organ receives a different constriction Transfer point of the refrigerant in such a way that the surrounding heat medium as close as only possible to replace the risk of freezing.
Die Zeichnung soll die gedachte Ausführungsform darstellen. Die Einlaßvorrichtung besteht aus einer eigenartig geformten und, sehr dünnwandigen Düse oder auch aus einem Ventil mit gleichen Eigenschaften. Das vom Kondensator kommende Kältemittel strömt in der Richtung a-b durch die Einlaßvorrichtung. Das Wärmemittel wird in der Richtung c-d geführt und umspült beständig die gefährliche Stelle des Kältemittel-Überganges, so daß nach den praktischen Beobachtungen eine Eisbildung nicht mehr stattfindet. Als geeignetstes und vorhandenes Wärmemittel soll das aus dem Kondensator tretende, also vorgewärmte Kühlwasser benutzt werden. Es kann aber auch ein anderes Wärmemittel in Anwendung kommen, etwa ein Gas oder das aus dem Kondensator kommende Kältemittel selbst.The drawing is intended to represent the intended embodiment. The inlet device consists of a peculiarly shaped and very thin-walled nozzle or a valve with the same properties. The refrigerant coming from the condenser flows in the direction down through the inlet device. The heating medium is guided in the direction cd and constantly flows around the dangerous point of the refrigerant transition, so that, according to practical observations, ice formation no longer takes place. The cooling water exiting the condenser, i.e. preheated, should be used as the most suitable and available heating medium. However, another heating medium can also be used, such as a gas or the refrigerant itself coming from the condenser.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE293379C true DE293379C (en) |
Family
ID=548042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT293379D Active DE293379C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE293379C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4054157A (en) * | 1975-06-20 | 1977-10-18 | Moseley Jr Charles D | Coupling device for pipes having a convex shaped or straight tubular end |
| WO1994021975A1 (en) * | 1993-03-25 | 1994-09-29 | Calmac Manufacturing Corporation | Non-steady-state self-regulating intermittent flow thermodynamic system |
| US20040144389A1 (en) * | 2002-07-02 | 2004-07-29 | Laboratoire Sober | Elastic dynamic immobilizer for fingers or toes |
-
0
- DE DENDAT293379D patent/DE293379C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4054157A (en) * | 1975-06-20 | 1977-10-18 | Moseley Jr Charles D | Coupling device for pipes having a convex shaped or straight tubular end |
| WO1994021975A1 (en) * | 1993-03-25 | 1994-09-29 | Calmac Manufacturing Corporation | Non-steady-state self-regulating intermittent flow thermodynamic system |
| US20040144389A1 (en) * | 2002-07-02 | 2004-07-29 | Laboratoire Sober | Elastic dynamic immobilizer for fingers or toes |
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