EP0152941A2 - Evaporateur à tubes concentriques pour réfrigérant, en particulier destiné à des dispositifs de production de glace - Google Patents

Evaporateur à tubes concentriques pour réfrigérant, en particulier destiné à des dispositifs de production de glace Download PDF

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Publication number
EP0152941A2
EP0152941A2 EP85101769A EP85101769A EP0152941A2 EP 0152941 A2 EP0152941 A2 EP 0152941A2 EP 85101769 A EP85101769 A EP 85101769A EP 85101769 A EP85101769 A EP 85101769A EP 0152941 A2 EP0152941 A2 EP 0152941A2
Authority
EP
European Patent Office
Prior art keywords
tubular jacket
evaporator
jacket
refrigerant
double
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.)
Withdrawn
Application number
EP85101769A
Other languages
German (de)
English (en)
Other versions
EP0152941A3 (fr
Inventor
Ernesto Parodi
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.)
FAST-ICE Srl
Original Assignee
FAST-ICE Srl
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 FAST-ICE Srl filed Critical FAST-ICE Srl
Publication of EP0152941A2 publication Critical patent/EP0152941A2/fr
Publication of EP0152941A3 publication Critical patent/EP0152941A3/fr
Withdrawn legal-status Critical Current

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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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators

Definitions

  • the invention relates to a tubular jacket compressor for refrigerants, in particular in devices for ice manufacture, consisting of a double-walled tubular jacket with an inlet for the liquid refrigerant and an outlet preferably arranged in the upper evaporator part for the vaporous refrigerant.
  • a tubular jacket compressor for refrigerants is understood to be an evaporator for refrigerating machines which is formed from the cavity, closed at both ends, between the two walls of a preferably circular cylindrical double-walled tubular jacket.
  • the double-walled tubular jacket can be arranged with an upright (perpendicular), inclined or lying (horizontal) longitudinal axis and in connection with any type of chillers designed to cool any Medium are used, which is located in the cavity enclosed by the tubular jacket and / or around the tubular jacket.
  • the inlet of the liquid refrigerant is provided in the lower part of the double-walled tubular jacket.
  • the liquid refrigerant fills the lower part of the tubular jacket and has a relatively small evaporation surface, since this is limited only to the narrow cross section of the jacket cavity.
  • the known tubular jacket evaporators have an unsatisfactory performance.
  • the temperature in these evaporators is distributed unevenly over their height, since the evaporation takes place mainly in the lower jacket part and the cooling is consequently concentrated only in this jacket part.
  • the inlet according to the inlet of the liquid refrigerant is not arranged in the lower but in the upper part of the double-walled tubular jacket, regardless of whether the tubular jacket evaporator is upright, i.e. a vertical one or has an inclined longitudinal axis or lying, ie is arranged with a horizontal longitudinal axis.
  • the liquid refrigerant entering through the upper inlet flows down with simultaneous evaporation on the inner walls of the tubular jacket evaporator.
  • the throughput of the refrigerant is regulated in such a way that the refrigerant flowing down the inlet wets the inner walls of the tubular jacket evaporator to the greatest possible extent of the evaporator height, preferably to the entire evaporator height.
  • the walls of the tubular casing evaporator on its entire or almost entire height and area by the correspondingly large evaporation of the liquid refrigerant is achieved a very g facilitated excessive cooling of the evaporator tube jacket by wetting.
  • 1 is a tubular jacket evaporator which is switched on in the refrigerant circuit of a compressor refrigerator.
  • the refrigerant circuit has, in a manner known per se, a compressor P which sucks the refrigerant vapor out of the tubular jacket evaporator 1 and compresses it to a higher pressure.
  • the refrigerant is liquefied in a downstream condenser C (condenser) and re-introduced into the tubular jacket evaporator 1 via an expansion valve VE.
  • the cavity 2 between the two pipe sections 3, 4 arranged one inside the other is sealed off at the end at both pipe ends with the aid of end caps 6, 7.
  • the two end covers 6, 7 are connected to one another on the outside of the double-walled tubular casing 3, 4 by axially parallel tie rods 8 and screws 9 and braced with the sections 3 and 4 of the pipe.
  • the tubular casing compressor 1 is standing, i.e. arranged with vertical longitudinal axis.
  • the lower end cover 6 is disc-shaped and extends over the entire cross section of the double-walled tubular jacket 3, 4. As a result, this cover 6 forms the bottom part of a cavity 10 enclosed by the tubular jacket 3, 4.
  • the upper end cover 7, on the other hand, is ring-shaped and leaves the upper opening 107 of the double-walled tubular jacket 3, 4 free.
  • the compressor 1 forms the double-walled jacket of an approximately pot-shaped container.
  • the two pipe sections 3 and 4 consist of metal, preferably at least partially of copper or copper alloys.
  • the inlet 11 of the liquid refrigerant in the Cavity 2 of the double-walled tubular jacket 3, 4 is provided in the outer tube section 3 in the upper region of the tubular jacket: compressor 1.
  • the outlet 12 of the vaporous refrigerant is also arranged in the upper part of the tubular jacket evaporator 1, in particular on the diametrically opposite side to the inlet 11 of the liquid refrigerant.
  • the liquid refrigerant entering the cavity 2 of the tubular jacket evaporator 1 flows downwards onto the inner evaporator walls, with simultaneous evaporation and corresponding heat absorption.
  • the evaporated cold medium is sucked off through the outlet 12.
  • the throughput of the refrigerant through the tubular jacket evaporator 1 is adjusted such that the inner evaporator walls are wetted by the liquid refrigerant as far as possible over their entire height.
  • a flat refrigerant sump can form on the bottom of the evaporator cavity 2, but this is not absolutely necessary and can also be absent.
  • the tubular jacket evaporator 1 described can also be arranged with an oblique or horizontal longitudinal axis, ie lying down. In this case, however, it must also be ensured that the inlet of the liquid refrigerant is in the upper part of the evaporator 1, ie in the region of its upper apex.
  • the tubular jacket evaporator according to the invention can be used in any refrigeration machine for any purpose.
  • the tubular jacket evaporator 1 according to the invention can be used with particular advantage in devices for producing ice.
  • the liquid refrigerant entering the upper part of the evaporator and the subsequent flowing down of the liquid refrigerant on the inner walls of the evaporator cavity 2 result in complete, uniform wetting of the evaporator walls and, as a result, both particularly high efficiency achieved a high uniformity of temperature on the entire evaporator surface when absorbing heat.
  • Such an arrangement is e.g. 3, in which the cavity 10 of the pot-shaped container enclosed by the tubular jacket evaporator is used as a freezing space for ice cream production.
  • the tubular jacket evaporator 1 is arranged in a housing S, to which it is attached by means of screws 13.
  • the removal of the ice cream is made possible by a fast-acting defrosting device.
  • the Rohrmantelver steamer 1 is thereby increased in the shortest possible time so that the one can detach itself from the walls of the cavity 10 of the pot-shaped tubular jacket evaporator 1 or from the walls of a freezer container arranged in this cavity 10.
  • the tubular jacket evaporator according to the invention can, however, advantageously also be used for other purposes, e.g. can be used as a continuous cooler in air conditioning systems.
  • the double-walled tubular body of the evaporator is open at both ends and the air to be cooled is passed through or around this tubular body.
  • the structural design of the tube jacket evaporator 1 shown is particularly expedient, but it is by no means the only possible embodiment.
  • the tube jacket evaporator can also have a welded version in which the two coaxial pipe sections 3 and 4 are welded directly to one another at their ends or to the relevant end caps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Confectionery (AREA)
EP85101769A 1984-02-21 1985-02-18 Evaporateur à tubes concentriques pour réfrigérant, en particulier destiné à des dispositifs de production de glace Withdrawn EP0152941A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1512584U IT8415125V0 (it) 1984-02-21 1984-02-21 Evaporatore a camicia per circuiti frigorigeni
IT1512584U 1984-02-21

Publications (2)

Publication Number Publication Date
EP0152941A2 true EP0152941A2 (fr) 1985-08-28
EP0152941A3 EP0152941A3 (fr) 1985-12-18

Family

ID=11146504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101769A Withdrawn EP0152941A3 (fr) 1984-02-21 1985-02-18 Evaporateur à tubes concentriques pour réfrigérant, en particulier destiné à des dispositifs de production de glace

Country Status (2)

Country Link
EP (1) EP0152941A3 (fr)
IT (1) IT8415125V0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311158A3 (en) * 1987-09-25 1990-05-16 Bravo S.P.A. Improved evaporator for coolant fluids
WO1997027438A1 (fr) * 1996-01-23 1997-07-31 Frank Jimmy I Chambre de melange refrigeree et son procede de fabrication
RU2135911C1 (ru) * 1996-05-03 1999-08-27 Даймлер-Бенц Эйроспейс Эйрбас ГмбХ Способ испарения глубоко охлажденной жидкой рабочей среды, в частности жидкого водорода, и испаритель для его осуществления
CN112944759A (zh) * 2021-03-26 2021-06-11 天津商业大学 一种实现气液两相制冷剂均匀分流的环形鼓式蒸发桶

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914300A (en) * 1929-06-26 1933-06-13 Albert E Schneider Evaporator for refrigerators
US2441833A (en) * 1943-08-16 1948-05-18 Willard L Morrison Refrigerant evaporator
FR1028448A (fr) * 1950-11-27 1953-05-22 Perfectionnement apporté aux appareils réfrigérateurs
FR1218774A (fr) * 1959-03-11 1960-05-12 Separator Ab Réfrigérateur à immersion
US3026686A (en) * 1961-04-03 1962-03-27 Charles E Lowe Ice making refrigeration apparatus and the like
DE1451057A1 (de) * 1964-08-29 1969-05-29 Lowe Charles E Anlage zur Herstellung von Eis
US4378680A (en) * 1981-10-08 1983-04-05 Frick Company Shell and tube ice-maker with hot gas defrost

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311158A3 (en) * 1987-09-25 1990-05-16 Bravo S.P.A. Improved evaporator for coolant fluids
WO1997027438A1 (fr) * 1996-01-23 1997-07-31 Frank Jimmy I Chambre de melange refrigeree et son procede de fabrication
US5799726A (en) * 1996-01-23 1998-09-01 Frank; Jimmy I. Refrigerated mixing chamber and method for making same
RU2135911C1 (ru) * 1996-05-03 1999-08-27 Даймлер-Бенц Эйроспейс Эйрбас ГмбХ Способ испарения глубоко охлажденной жидкой рабочей среды, в частности жидкого водорода, и испаритель для его осуществления
CN112944759A (zh) * 2021-03-26 2021-06-11 天津商业大学 一种实现气液两相制冷剂均匀分流的环形鼓式蒸发桶

Also Published As

Publication number Publication date
IT8415125V0 (it) 1984-02-21
EP0152941A3 (fr) 1985-12-18

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Inventor name: PARODI, ERNESTO