EP1003998A1 - Scherbeneismaschine - Google Patents
ScherbeneismaschineInfo
- Publication number
- EP1003998A1 EP1003998A1 EP98948798A EP98948798A EP1003998A1 EP 1003998 A1 EP1003998 A1 EP 1003998A1 EP 98948798 A EP98948798 A EP 98948798A EP 98948798 A EP98948798 A EP 98948798A EP 1003998 A1 EP1003998 A1 EP 1003998A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- roller
- pan
- flake ice
- evaporator roller
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
- F25C1/14—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes
- F25C1/142—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the outer walls of cooled bodies
Definitions
- the invention is based on a flake ice machine according to the preamble of the main claim.
- an evaporator roller In a known flake ice machine of the generic type, an evaporator roller is wetted by immersing it on one side in an evaporator pan filled with water. When the evaporator roller rotates, the amount of water entrained by the outer surface of the evaporator roller freezes on the outer surface. The resulting ice layer is detached from the jacket surface of the evaporator roller before being immersed again in the water by a device provided on the roller. This is done either by scraping or chipping.
- the evaporator roller contains a refrigeration evaporator, which is connected to a refrigeration machine located outside the roller.
- the refrigeration machine is preferably a compressor machine. In any case, the chiller and the drive of the evaporator roller are electrically controlled.
- an electrical control device In order to prevent damage to the scraper ice machine when defects occur, for example the drive of the evaporator roller or the refrigeration machine or the water supply, are the control unit monitors the filling time, the ice production and the water level in the evaporator pan. The drive of the evaporator roller and the drive of the refrigeration machine are switched off when the monitored values exceed or fall below the specified limit values.
- sensors are provided for monitoring in the control device. A sensor checks the thickness of the ice layer on the outer surface and thus the ice production, a sensor detects the water level in the evaporator pan and a sensor monitors the filling time of the evaporator pan.
- Each of the sensors delivers a measured variable which must be processed by the control device and compared with the predetermined limit values.
- a disadvantage of these known flake ice machines is that the number of sensors and the corresponding expensive device make the manufacture of a flake ice machine complex and expensive.
- the S cherbenei machine according to the invention with the characterizing features of the main claim has the advantage that as a signal generator for the control device of the evaporator roller or.
- Refrigeration machine only a sensor is provided, which monitors the filling time of the evaporator pan, the ice production and the water level of the evaporator pan.
- the measured variable to which the sensor responds is selected so that it is influenced by the filling time, by the thickness of the ice layer on the evaporator roller and by the water level in the evaporator pan.
- the control device checks whether the measured values determined by the sensor lie within predetermined limits and whether the measured values change.
- the limit values are selected taking into account the values of filling time, thickness of the ice layer and water level that are not critical for the flake ice machine. If the measured value exceeds the predetermined limit values, the control device drives the chiller and the Drive for the evaporator roller switched off before the flake ice machine can be damaged.
- the measured variable detected by the sensor is the change in the water level in the evaporator pan over time. If the water level does not change within a predefined time interval of, for example, 60 seconds or if it changes more than a predefined limit value, the drive for the evaporator roller and chiller is switched off after the time interval has elapsed. If, for example, the water supply is interrupted, no water can flow in and the water level falls below the specified limit value within the specified time interval. This leads to the flake ice machine being switched off. If one of the two drives for the evaporator roller or the chiller fails, no ice is produced, which means that the water level does not change. The flake ice machine also switches off in this case.
- the evaporator roller freezes due to the inlet temperature being too low, the water level does not change within the time interval.
- the flake ice machine is switched off after the time interval has elapsed.
- the entire amount of liquid freezes in the evaporator pan.
- the sensor no longer delivers measured values, which likewise leads to the flake ice machine being switched off after the predetermined time interval has elapsed.
- the monitoring of the temporal change in the water level advantageously begins with a time delay compared to the start of commissioning of the refrigeration machine.
- the time delay can vary depending on the flake ice machine. A typical value is 120 seconds, for example.
- the monitoring is edge-controlled.
- the senor comprises one arranged on the evaporator roller Float switch.
- Float switches have the advantage that they are independent of the chemical and physical properties of the liquid to be frozen. For example, there are no conductivity problems in ice production with distilled water.
- float switches have the advantage that in the event of a defect on their part, such as a cable break, an adhesive contact or a contact that no longer closes, they do not register a change in the water level within the predetermined time interval and thus cause the flake ice machine to be switched off.
- Fig. 1 an S cherbenemaschine with float switch.
- An evaporator roller 1 is rotatably mounted in an evaporator pan 2 of a flake ice machine and is driven by an electric motor or. a geared motor driven in rotation.
- the lower part of the evaporator roller 1 is immersed in a water bath 3, so that the outer surface 4 of the evaporator roller 1 is wetted with water when rotating.
- the water freezes on the jacket surface 4 of the evaporator roller 1 which has been cooled by the refrigerator. This forms a thin layer of ice, which is separated from the lateral surface with the aid of a fixed ice scraper 5 and fed to a collecting container, not shown.
- the drive for the evaporator roller 1 and the drive of the refrigeration machine, not shown, are not shown in the drawing, which are usually electromotive drives.
- a float switch 6 is arranged on the side of the evaporator pan 2 and is immersed in the water bath 3. The float switch registers the temporal change in the water level in the evaporator pan 2. If the water level does not change within a time interval or if it changes more than a predetermined limit value, the control device (not shown) which interacts with the float switch 6 switches the drive for the evaporator roller and for the chiller.
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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Confectionery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19735598 | 1997-08-15 | ||
DE19735598A DE19735598A1 (de) | 1997-08-15 | 1997-08-15 | Scherbeneismaschine |
PCT/DE1998/002371 WO1999009361A1 (de) | 1997-08-15 | 1998-08-17 | Scherbeneismaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1003998A1 true EP1003998A1 (de) | 2000-05-31 |
EP1003998B1 EP1003998B1 (de) | 2003-04-23 |
Family
ID=7839205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98948798A Expired - Lifetime EP1003998B1 (de) | 1997-08-15 | 1998-08-17 | Scherbeneismaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US6233953B1 (de) |
EP (1) | EP1003998B1 (de) |
DE (3) | DE19735598A1 (de) |
ES (1) | ES2198074T3 (de) |
WO (1) | WO1999009361A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19913702B4 (de) * | 1999-03-26 | 2004-11-11 | Integral Energietechnik Gmbh | Vorrichtung zum Gewinnen von Eiskristallen |
DE10017723A1 (de) * | 2000-04-11 | 2001-10-18 | Schill Maja Masch | Scherbeneismaschine |
US6557355B2 (en) * | 2001-10-09 | 2003-05-06 | Roman Niechcial | Methods and apparatus for creating and using ice pellets |
DE102006061158A1 (de) * | 2006-12-22 | 2008-06-26 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit Eisbereiter |
DE102008029695B3 (de) * | 2008-06-24 | 2009-06-18 | Hartmut Higel | Vorrichtung zum Herstellen von Scherbeneis |
US20120031135A1 (en) * | 2009-04-09 | 2012-02-09 | MAJA-MASCHINENFABRILK HERMANN SCHILL GmbH &Co. KG | Apparatus for Producing Flake Ice and Method for Cleaning, Descaling and/or Disinfecting an Apparatus for Producing Flake Ice |
US10082415B1 (en) * | 2016-03-25 | 2018-09-25 | Jacob William Collison | Floating evaporation pan with adjustable freeboard and surrounding wave-guard |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2308541A (en) * | 1939-12-07 | 1943-01-19 | Flakice Corp | Refrigeration |
US2749722A (en) * | 1952-09-19 | 1956-06-12 | Frank W Knowles | Apparatus for making ice in small pieces |
US4459824A (en) * | 1982-08-26 | 1984-07-17 | Reynolds Products Inc. | Ice cube making apparatus |
DK152153C (da) * | 1985-07-10 | 1988-06-27 | Sabroe & Co As | Skaelismaskine med en frysetromle og dertil tangentiale, svagt skraatstillede afskraberknive |
DE8912336U1 (de) * | 1989-10-17 | 1990-01-11 | Weber Eistechnik Gmbh, 3565 Breidenbach, De | |
DE9002856U1 (de) * | 1990-03-10 | 1990-07-19 | Wutke Kaelte- Und Klimatechnik Gmbh, 7640 Kehl, De | |
DE4108911C2 (de) * | 1991-03-19 | 1994-05-26 | Schill Maja Masch | Feineiserzeuger |
EP0535498A3 (en) * | 1991-10-04 | 1993-11-10 | Schill Maja Masch | Automatic chipped ice maker |
DE9307466U1 (de) * | 1992-05-15 | 1993-08-12 | Maja-Maschinenfabrik Hermann Schill Gmbh, 77694 Kehl, De | |
US5257510A (en) * | 1992-12-18 | 1993-11-02 | Kraft General Foods, Inc. | Scraper apparatus for freezer drums |
US5477694A (en) * | 1994-05-18 | 1995-12-26 | Scotsman Group, Inc. | Method for controlling an ice making machine and apparatus therefor |
DE29517340U1 (de) * | 1995-10-30 | 1995-12-21 | Biforce Anstalt | Vorrichtung zum Herstellen von Scherbeneis |
US5913711A (en) * | 1996-06-07 | 1999-06-22 | Universal Ice Blast, Inc. | Method for ice blasting |
-
1997
- 1997-08-15 DE DE19735598A patent/DE19735598A1/de not_active Withdrawn
-
1998
- 1998-08-17 ES ES98948798T patent/ES2198074T3/es not_active Expired - Lifetime
- 1998-08-17 EP EP98948798A patent/EP1003998B1/de not_active Expired - Lifetime
- 1998-08-17 WO PCT/DE1998/002371 patent/WO1999009361A1/de active IP Right Grant
- 1998-08-17 US US09/485,523 patent/US6233953B1/en not_active Expired - Lifetime
- 1998-08-17 DE DE19881154T patent/DE19881154D2/de not_active Expired - Lifetime
- 1998-08-17 DE DE59808081T patent/DE59808081D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9909361A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59808081D1 (de) | 2003-05-28 |
DE19735598A1 (de) | 1999-02-18 |
WO1999009361A1 (de) | 1999-02-25 |
DE19881154D2 (de) | 2000-07-06 |
EP1003998B1 (de) | 2003-04-23 |
US6233953B1 (en) | 2001-05-22 |
ES2198074T3 (es) | 2004-01-16 |
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