DE404960C - Refrigerants for cooling systems - Google Patents

Refrigerants for cooling systems

Info

Publication number
DE404960C
DE404960C DEK86547D DEK0086547D DE404960C DE 404960 C DE404960 C DE 404960C DE K86547 D DEK86547 D DE K86547D DE K0086547 D DEK0086547 D DE K0086547D DE 404960 C DE404960 C DE 404960C
Authority
DE
Germany
Prior art keywords
refrigerants
cooling systems
refrigerant
dichloroethylene
isomers
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.)
Expired
Application number
DEK86547D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALBERT KLEIN DR ING
Original Assignee
ALBERT KLEIN DR ING
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALBERT KLEIN DR ING filed Critical ALBERT KLEIN DR ING
Priority to DEK86547D priority Critical patent/DE404960C/en
Application granted granted Critical
Publication of DE404960C publication Critical patent/DE404960C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
    • C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Kältemittel für Kühlsysteme. Alle bisher in Kühlanlagen angewendeten Kältemittel haben gewisse schädliche Eigenschaften. Die meisten sind giftig, viele greifen Metall an, andere sind explosiv oder sonstwie gefährlich oder nur schwer zu behandeln, andere als Kühlmittel im übrigen geeignete Stoffe sind für den Gebrauch zu teuer. Das ebenfalls schon vorgeschlagene Dichloräthylen, das an sich besonders brauchbar erscheint, da es bei keiner Temperatur, auch nicht in Gegenwart von Wasser, Metalle angreift, sondern vielmehr rostverhindernd wirkt, da es ferner bei den atmosphärischen Temperaturen und Drücken weder in nennenswertem Maße verdunstet noch gefriert und ein beträchtlich schwereres Gas als Luft, billig, nicht giftig, nicht explosiv, sondern nur schwer brennbar ist und so bequem wie Wasser gehandhabt werden kann, hat wiederum die Eigentümlichkeit, daß es einen sehr großen Siedeintervall zeigt, weil es aus einem Gemisch von zwei Isomeren besteht, von denen eine bei q.8,8°, die andere bei 59,8,° siedet. Diese Eigenschaft wirkt natürlich bei Kälteanlagen besonders störend.Refrigerants for cooling systems. All previously used in cooling systems Refrigerants have certain harmful properties. Most are poisonous, many attack metal, others are explosive or otherwise dangerous or difficult to be treated, substances other than coolants are otherwise suitable for use too expensive. Dichlorethylene, which has also already been proposed, is special in itself seems useful, because at no temperature, not even in the presence of water, Attacks metals, but rather acts as a rust preventive, since it is also at the atmospheric Temperatures and pressures neither evaporates nor freezes to any significant extent and a considerably heavier gas than air, cheap, non-toxic, non-explosive, but is hardly flammable and can be handled as comfortably as water, again has the peculiarity that it shows a very large boiling interval, because it consists of a mixture of two isomers, one of which at q.8.8 °, the other boils at 59.8 °. This property naturally works in refrigeration systems particularly annoying.

Gemäß der vorliegenden Erfindung ist nun ein in jeder Beziehung einwandfreies Kältemittel, das keine der obenerwähnten nachteiligen Eigenschaften besitzt und sich besonders gut für Kühlanlagen mit Schleuderkompressor eignet, bei welchen große Kältemittelmengen bei geringem Druckunterschied in Verdampfer und Kondensator behandelt werden, dadurch geschaffen worden, daß jene beiden Isomeren des Dichloräthylen (z. B. durch fraktionierte Destillation) getrennt und entweder der eine oder der andere Teil als Kältemittel benutzt wird.According to the present invention is now a faultless one in every respect Refrigerant which does not have any of the disadvantageous properties mentioned above and is particularly suitable for cooling systems with centrifugal compressors, which are large Treated refrigerant quantities with a small pressure difference in the evaporator and condenser are created by the fact that those two isomers of dichloroethylene (e.g. B. by fractional distillation) separated and either one or the other Part is used as a refrigerant.

Die Verwendung jeder der zwei Isomeren des Dichloräthylen ist gleich wie die irgendeines anderen Kältemittels. Vorzugsweise wird es bei solchen Kälteanlagen angewendet, bei denen .das Kältemittel nur geringen Druckänderungen unterworfen wird und diese Drücke zweckmäßig etwas unterhalb atmosphärischem Druck bleiben. Wegen der großen Dichte der Dämpfe des Dichloräthylen können die einzelnen Teile der Anlage ohne besondere Schutzvorkehrungen nach oben geöffnet werden.The use of each of the two isomers of dichloroethylene is the same like any other refrigerant. It is preferred in such refrigeration systems used where .the refrigerant is subject to only slight changes in pressure and these pressures expediently remain somewhat below atmospheric pressure. Because of the high density of the vapors of dichloroethylene, the individual parts of the system can be opened upwards without special protective measures.

Claims (1)

PATENTANSPRÜCHE: i. Kältemittel für Kühlsysteme, dadurch gekennzeichnet, daß es im wesentlichen aus nur einer der beiden Isomeren des Dichloräthylen besteht. a. Kältemittel nach Anspruch i, gekennzeichnet durch seine Verwendung in einem Kreislauf, bei dem es ständig unter einem geringeren als Atmosphärendruck steht.PATENT CLAIMS: i. Refrigerants for cooling systems, characterized in that that it consists essentially of only one of the two isomers of dichloroethylene. a. Refrigerant according to claim i, characterized by its use in a circuit, in which it is constantly under a pressure less than atmospheric pressure.
DEK86547D 1923-07-14 1923-07-14 Refrigerants for cooling systems Expired DE404960C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK86547D DE404960C (en) 1923-07-14 1923-07-14 Refrigerants for cooling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK86547D DE404960C (en) 1923-07-14 1923-07-14 Refrigerants for cooling systems

Publications (1)

Publication Number Publication Date
DE404960C true DE404960C (en) 1924-10-24

Family

ID=7235701

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK86547D Expired DE404960C (en) 1923-07-14 1923-07-14 Refrigerants for cooling systems

Country Status (1)

Country Link
DE (1) DE404960C (en)

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