EP1110040A1 - Verdampferplatine - Google Patents
VerdampferplatineInfo
- Publication number
- EP1110040A1 EP1110040A1 EP99944527A EP99944527A EP1110040A1 EP 1110040 A1 EP1110040 A1 EP 1110040A1 EP 99944527 A EP99944527 A EP 99944527A EP 99944527 A EP99944527 A EP 99944527A EP 1110040 A1 EP1110040 A1 EP 1110040A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- board
- surface end
- refrigerant channel
- section
- 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.)
- Granted
Links
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
- F25B39/022—Evaporators with plate-like or laminated elements
- F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
Definitions
- the invention relates to an evaporator board, such as a rear wall evaporator for arrangement in a cooling room of a refrigerator or the like, with an injection point for refrigerant and an adjoining refrigerant channel which runs over the surface of the evaporator board and which opens at a suction point on the evaporator board.
- an evaporator board such as a rear wall evaporator for arrangement in a cooling room of a refrigerator or the like, with an injection point for refrigerant and an adjoining refrigerant channel which runs over the surface of the evaporator board and which opens at a suction point on the evaporator board.
- an evaporator board for cooling their cooling space on the rear wall of the cooling space, which is designed either as a so-called cold wall evaporator or as an interior evaporator.
- these evaporators which often take up the entire height of the rear wall, it is customary, starting from a refrigerant injection point arranged in the installed position of the evaporator board at its upper end, to guide a refrigerant channel in a meandering manner over the height of the evaporator board and to feed the end of the refrigerant channel to a refrigerant suction point on the evaporator board
- the type of refrigerant channel guide means that the lower end, which is distant from the injection point, is cooled in the evaporator board in the installed position with respect to the point in time from which the refrigerant compressor is started and thus the refrigerant channel on the evaporator board is supplied with liquid refrigerant.
- the refrigerant channel is connected to the injection point in one of the at least adjacent surface end sections of the evaporator board and runs within it, and in that the refrigerant channel is transferred from this surface end section to the opposite surface end section and passes through it before it runs through the intermediate section lying between the two surface end sections.
- liquid refrigerant is applied to it at least as far as possible at its opposite surface end sections and is thus cooled, so that the intermediate section lying between the surface end sections is pre-cooled by the heat-conducting properties of the evaporator board.
- the result of this is that the entire surface of the evaporator board cools down uniformly significantly more quickly, as a result of which the compressor running times are significantly shortened and thus the energy consumption of a refrigerator is significantly reduced by the much more effective application of liquid refrigerant to the evaporator surface.
- the delayed cooling of the end of the evaporator lying away from the refrigerant injection point is essentially avoided by the refrigerant channel routing from one surface end section directly to the opposite surface end section.
- the path of the refrigerant channel from the injection point to one of the surface end sections is particularly short if, according to a preferred embodiment of the object of the invention, it is provided that the injection point upstream of the refrigerant channel is arranged within one of the two opposing surface end sections through which the refrigerant channel runs. Due to the minimized refrigerant channel guidance from the injection point to one of the surface end sections, both the surface end section provided with the injection point and the opposite surface end section are very quickly filled with liquid refrigerant loadable and therefore cooled extremely quickly.
- the two opposing surface end sections of the evaporator board reach the same temperature level with only a slight time delay and thus, due to the heat conduction occurring from the evaporator board, at least approximately uniformly for cooling the middle intermediate section between the two surface end sections Evaporator board to help cool.
- the injection point with the adjoining refrigerant channel is arranged within the surface end section which is higher in the installed position of the evaporator board.
- the arrangement of the refrigerant injection point within the end section lying at the top in the installed position of the evaporator board cools faster than the opposite end section at the bottom, as a result of which, shortly after the higher surface end section of the evaporator board is acted on, natural convection within the refrigerator's cooling chamber forms and contributes to a faster air mixing within the cold room.
- the noise generated by the refrigerant which is forcibly circulated by means of the refrigerant compressor and which is present both in liquid and in gaseous form within the refrigerant channel is not insignificantly reduced.
- a cooling space of a refrigerator is cooled down particularly quickly to the intended temperature if, according to a next advantageous embodiment of the subject of the invention, it is provided that the evaporator board has a rectangular cut and that the narrower sides of the board in the installed position of the evaporator board run essentially horizontally, whereby the injection point is arranged within one of the surface end sections formed by the narrower board sides.
- the evaporator board can be produced particularly cost-effectively in large-scale production if, according to a last preferred embodiment of the object of the invention, it is provided that the evaporator board is manufactured by the roll bond manufacturing process or by the Z bond manufacturing process.
- Fig. 1 shows a simplified schematic in a first embodiment
- FIG. 2 is a simplified schematic representation of a rectangular evaporator board in a second exemplary embodiment, with an injection point arranged approximately at half the board height,
- FIG. 3 shows a first diagram to show the temperature profile at the outlet or inlet of an evaporator board manufactured according to the prior art
- Fig. 4 shows a second graph to show the temperature profile at the input or output of an evaporator board according to the invention.
- FIG. 1 shows in simplified form, for example, an evaporator board 10 produced according to the roll bond process, which has a blank which is rectangular in view from the front, the board sections assigned to the narrower rectangular sides serving as surface end sections 11 and 12, respectively have a variable height h as a function of the height of the evaporator board and which are referred to as the so-called input or output of the evaporator board.
- the opposing surface end sections 11 and 12 which accommodate a middle board section 13 between them, the one in the installed position of the evaporator board 10 is in a Nem not shown refrigerator higher surface end portion 11 provided with an injection point 14 for refrigerant.
- a refrigerant channel 15 is connected in terms of flow, which in the present case runs through the upper surface end section 11 in the manner of a loop and which, at the end of the loop, is transferred from this surface end section 11 into the surface end section 12 lying at the bottom in the installed position of the evaporator board 10.
- the refrigerant channel 15, as in the surface end section 11 is arranged in the manner of a loop and is fed to the middle circuit board section 13 at the loop end.
- the refrigerant channel 12 runs in a meandering manner over the height of the middle plate section 13 before it is connected on the output side to a suction point 16 provided on the surface section 11.
- the surface end section 11 at the top is acted upon with liquid refrigerant.
- the liquid refrigerant is fed directly to the lower surface end section 12 before it passes into the middle plate section 13.
- This type of refrigerant channel routing ensures that first the inlet-side end of the evaporator plate 10 and with a short time offset thereafter, its outlet-side end is acted upon by liquid refrigerant and is thus cooled, while only then the middle one lying between the two surface end sections 11 and 12 Board section 13 is charged with liquid refrigerant and is thus cooled.
- FIG. 2 shows like FIG. 1 in a simplified schematic representation a second embodiment of an evaporator board 20 having a rectangular blank, the ends of which facing the narrower rectangular sides of its blank serve as surface end sections 21 and 22, which have a different height depending on the height of the evaporator board h.
- a middle board section 23 is provided, the surface of which is significantly enlarged with respect to the area of the surface end sections 21 and 22.
- the circuit board section 23 has a refrigerant injection point 24 which is approximately in the middle of its height and to which a refrigerant channel 25 is connected in terms of flow technology.
- the refrigerant channel 25 is transferred into a surface end section arranged directly adjacent to it, which in the present case is the surface end section 21.
- the surface end section 21, which is at the top in the installed position, is traversed by the refrigerant channel 25 in the manner of a loop before the refrigerant channel 25 is fed directly via the central circuit board section 23 to the surface end section 22 which is lower in the installed position of the evaporator board 10.
- the refrigerant channel 25 also runs through this in the manner of a loop before it is transferred to the central circuit board section 23 for cooling it and runs inside it in a loop-like manner over the height of the circuit board section 23.
- the refrigerant channel 25 opens into a refrigerant suction point 26 arranged inside the circuit board section 23. Due to the pathally minimized direct transfer from the refrigerant injection point 24 located in the middle circuit board section 23 to the adjacent surface end section 21, this becomes the opposite end surface section first and at a short time thereafter 22 acted upon by liquid refrigerant and thus cooled, while the middle plate section 23 is acted upon only after the surface end sections 21 and 22 with liquid refrigerant. Due to the primary cooling of the outer surface end sections 21 and 22, the middle plate section 23 experiences a kind of pre-cooling effect, which is brought about by the heat conduction of the aluminum evaporator plate 20 produced, for example, using the roll bond method.
- FIG. 3 shows a coordinate system to illustrate the evaporator surface temperatures in the case of evaporator boards according to the prior art.
- the surface temperature in ° C of the evaporator board is plotted on the ordinate and the time t in minutes on the abscissa.
- the curve of the surface temperature measured at the evaporator inlet (corresponds to the surface section at the top) differs significantly from the curve which was determined for the surface temperature at the evaporator outlet (corresponds to the surface section below), the surface temperature at the evaporator outlet it is only at the end of the compressor runtime that the order of magnitude of the temperature at the evaporator inlet is reached.
- FIG. 4 shows in curves the course of the surface temperature at the outlet or inlet of an evaporator board according to the invention.
- the surface temperature of the evaporator board is also plotted against the compressor running time.
- the curve curve determined for the surface temperatures at the evaporator inlet or at the evaporator outlet illustrate, the curve curve determined for the surface temperature at the evaporator outlet largely follows the curve curve which was determined on the inlet side on the evaporator board.
- the guidance of the refrigerant channel 15 or 25 can be adapted to the corresponding cooling requirement at the surface end sections 11 and 12 or 21 and 25.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Valve Device For Special Equipments (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19840412A DE19840412A1 (de) | 1998-09-04 | 1998-09-04 | Verdampferplatine |
| DE19840412 | 1998-09-04 | ||
| PCT/EP1999/006282 WO2000014460A1 (de) | 1998-09-04 | 1999-08-26 | Verdampferplatine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1110040A1 true EP1110040A1 (de) | 2001-06-27 |
| EP1110040B1 EP1110040B1 (de) | 2007-10-17 |
Family
ID=7879839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99944527A Expired - Lifetime EP1110040B1 (de) | 1998-09-04 | 1999-08-26 | Kühlschrank mit verdampferplatine |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1110040B1 (de) |
| AT (1) | ATE376157T1 (de) |
| DE (2) | DE19840412A1 (de) |
| ES (1) | ES2296408T3 (de) |
| IT (1) | ITMI991839A1 (de) |
| PL (1) | PL193497B1 (de) |
| TR (1) | TR200100330T2 (de) |
| WO (1) | WO2000014460A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022204581A2 (en) | 2021-03-26 | 2022-09-29 | Scholar Rock, Inc. | Tgf-beta inhibitors and use thereof |
| EP4348260A2 (de) | 2021-06-03 | 2024-04-10 | Scholar Rock, Inc. | Tgf-beta inhibitoren und deren therapeutische verwendung |
| EP4676954A1 (de) | 2023-03-07 | 2026-01-14 | Scholar Rock, Inc. | Tgf-beta-inhibitoren zur verwendung zur behandlung von resistentem oder nichtansprechendem krebs bei patienten |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2979922A (en) * | 1958-06-30 | 1961-04-18 | Gen Motors Corp | Refrigerating apparatus |
| DE4120651A1 (de) * | 1991-06-22 | 1993-01-14 | Krupp Vdm Ag | Verdampfer fuer ein kompressor-kuehlgeraet |
| DE19506904A1 (de) * | 1995-02-28 | 1996-08-29 | Schmoele Gmbh Km | Kältemittelverdampfer für ein Kühlmöbel |
| IT1288846B1 (it) * | 1996-02-07 | 1998-09-25 | Cga Comp Gen Allumino Spa | Assemblato per scambio calore e rispettivo processo ed impianto di produzione |
-
1998
- 1998-09-04 DE DE19840412A patent/DE19840412A1/de not_active Withdrawn
-
1999
- 1999-08-26 TR TR2001/00330T patent/TR200100330T2/xx unknown
- 1999-08-26 EP EP99944527A patent/EP1110040B1/de not_active Expired - Lifetime
- 1999-08-26 PL PL99346397A patent/PL193497B1/pl not_active IP Right Cessation
- 1999-08-26 AT AT99944527T patent/ATE376157T1/de not_active IP Right Cessation
- 1999-08-26 ES ES99944527T patent/ES2296408T3/es not_active Expired - Lifetime
- 1999-08-26 WO PCT/EP1999/006282 patent/WO2000014460A1/de not_active Ceased
- 1999-08-26 IT IT1999MI001839A patent/ITMI991839A1/it unknown
- 1999-08-26 DE DE59914528T patent/DE59914528D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0014460A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1110040B1 (de) | 2007-10-17 |
| ATE376157T1 (de) | 2007-11-15 |
| ITMI991839A1 (it) | 2001-02-26 |
| WO2000014460A1 (de) | 2000-03-16 |
| TR200100330T2 (tr) | 2001-09-21 |
| ITMI991839A0 (it) | 1999-08-26 |
| PL346397A1 (en) | 2002-02-11 |
| ES2296408T3 (es) | 2008-04-16 |
| PL193497B1 (pl) | 2007-02-28 |
| DE19840412A1 (de) | 2000-03-09 |
| DE59914528D1 (de) | 2007-11-29 |
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