EP2413069A2 - Machine de fabrication de glace - Google Patents

Machine de fabrication de glace Download PDF

Info

Publication number
EP2413069A2
EP2413069A2 EP11175665A EP11175665A EP2413069A2 EP 2413069 A2 EP2413069 A2 EP 2413069A2 EP 11175665 A EP11175665 A EP 11175665A EP 11175665 A EP11175665 A EP 11175665A EP 2413069 A2 EP2413069 A2 EP 2413069A2
Authority
EP
European Patent Office
Prior art keywords
condenser
water
ice making
barrel
making machine
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
Application number
EP11175665A
Other languages
German (de)
English (en)
Other versions
EP2413069A3 (fr
EP2413069B1 (fr
Inventor
Donghoon Lee
Wookyong Lee
Changho Seo
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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
Priority claimed from KR1020100073043A external-priority patent/KR20120011272A/ko
Priority claimed from KR1020110006520A external-priority patent/KR20120085099A/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP2413069A2 publication Critical patent/EP2413069A2/fr
Publication of EP2413069A3 publication Critical patent/EP2413069A3/fr
Application granted granted Critical
Publication of EP2413069B1 publication Critical patent/EP2413069B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/041—Details of condensers of evaporative condensers
    • 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
    • F25C2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25C2700/04—Level of water

Definitions

  • the present disclosure relates to an ice making machine.
  • Ice making machines quickly produce a large amount of ice. Ice making machines may be classified into horizontal ones and vertical ones according to methods of installing an ice making grid plate, and the vertical ice making machines are widely used.
  • Such a vertical ice making machine includes an ice making grid plate that is vertically disposed. Water flows down along a grid from the upper side of the ice making grid plate, and is frozen by refrigerant circulating through an ice making coil disposed on the rear surface of the ice making grid plate, and thus, pieces of ice are made and grown in the inner space of the grid.
  • a sensor senses the size of the ice to stop an ice making operation.
  • high pressure gas is directly introduced to the ice making coil to heat the grid and the ice making grid plate, the boundaries of the pieces of ice contacting the grid are melted, and the pieces of ice, which have a plate shape, are dropped from the cells, and are stored in a collecting barrel.
  • Such an ice making machine typically includes a machine compartment that accommodates a freezing cycle device on its lower rear surface.
  • the machine compartment further accommodates a compressor, a condenser, and a condenser fan for cooling the condenser.
  • the condenser fan blows air to the condenser to dissipate heat of condensation, thereby improving cooling efficiency for the condenser.
  • an ice making machine includes: an ice making compartment accommodating an ice making unit for making ice, and storing the ice; a machine compartment disposed under the ice making compartment, and accommodating a cool air generating unit including a compressor, a condenser, and a blower fan; a water collecting plate disposed between the ice making compartment and the machine compartment, and collecting water generated from ice melted in the ice making compartment; a sprinkling barrel disposed over the condenser, and communicating with the water collecting plate to sprinkle cooling water to the condenser; and the blower fan forcibly moving air for cooling the condenser.
  • the water collecting plate may be provided with a discharge tube for discharging water collected in the sprinkling barrel, and the discharge tube may be provided with a valve for selectively discharging the collected water.
  • the sprinkling barrel may be provided with a level sensor that measures a level of water in the sprinkling barrel to open and close the valve.
  • a water collecting barrel may be disposed under the condenser to store water flowing along an outer surface of the condenser.
  • the water collecting barrel may be provided with a discharge tube for discharging the stored water.
  • the water collecting barrel may be provided with a level sensor, and the discharge tube may be provided with a valve that is opened and closed by the level sensor to selectively discharge the water from the water collecting barrel.
  • the water collecting barrel may be connected to the sprinkling barrel through a circulation tube, and the circulation tube may be provided with a circulation pump.
  • the sprinkling barrel may have a length corresponding to a width of the condenser, and be disposed on a vertical upper side of the condenser.
  • the sprinkling barrel may include holes that are arrayed in a width direction of the condenser to sprinkle water to an outer surface of the condenser.
  • the blower fan may operate when the valve is opened.
  • the sprinkling barrel may be disposed at a position that is horizontally spaced apart from a vertical upper side of the condenser.
  • the sprinkling barrel may be opposite to the blower fan with respect to the condenser.
  • the condenser may include a refrigerant tube that has a vertical long oval shape in a cross-section thereof.
  • Fig. 1 is a perspective view illustrating an ice making machine according to an embodiment.
  • Fig. 2 is a perspective view illustrating a configuration for cooling a condenser according to an embodiment.
  • Fig. 3 is a block diagram illustrating a control unit controlling the configuration of Fig. 2 .
  • Fig. 4 is a perspective view illustrating a configuration for cooling a condenser according to another embodiment.
  • Fig. 5 is a side view illustrating the configuration of Fig. 4 , with a cross-sectional view illustrating refrigerant tubes of the condenser of Fig. 4 .
  • Fig. 6 is a graph showing a relationship between power consumption and a distance between a sprinkling barrel and a condenser according to another embodiment.
  • Fig. 1 is a perspective view illustrating an ice making machine according to an embodiment.
  • Fig. 2 is a perspective view illustrating a configuration for cooling a condenser according to the current embodiment.
  • Fig. 3 is a block diagram illustrating a control unit controlling the configuration of Fig. 2 .
  • the ice making machine including a cooling device for the condenser also includes a main body 1 having a hexahedron shape, and a door 2 opening and closing an ice dispensing opening of the main body 1.
  • the main body 1 may be divided into an ice making compartment in the upper portion thereof, and a storing compartment in the lower portion thereof.
  • the ice making compartment may communicate with the storing compartment.
  • An ice making unit 3 for making ice is disposed in the upper portion of the ice making compartment.
  • a water supply unit (hereinafter, a first water supply unit) (not shown) may be disposed at the upper side of the ice making unit 3 to supply water to the ice making unit 3.
  • a machine compartment may be disposed at the lower side of the storing compartment, that is, in the lower rear portion of the main body 1, and a cool air generating unit 10 may be disposed in the machine compartment to supply cool air to the ice making unit 3.
  • the cool air generating unit 10 includes a compressor 11 for compressing refrigerant, a condenser 12 for condensing the refrigerant compressed in the compressor 11, and a blower fan 13 for dissipating heat from the condenser 12.
  • the cool air generating unit 10 further includes a cooling water supply unit 20 (hereinafter, a second water supply unit) that collects meltwater from the storing compartment to sprinkle the meltwater to the condenser 12.
  • the compressor 11, the condenser 12, and the blower fan 13 may be arrayed along a lateral line.
  • a water collecting plate 5 is disposed between the ice making compartment and the machine compartment to collect water from ice melted in the ice making compartment, and includes a discharge tube 6 for discharging collected water.
  • the lower end of the discharge tube 6 communicates with a sprinkling barrel 21 to be described later, and the sprinkling barrel 21 is disposed between the lower end of the discharge tube 6 and the upper end of the condenser 12.
  • Sprinkling holes are arrayed in the sprinkling barrel 21 in a width direction of the condenser 12 to sprinkle meltwater collected by the water collecting plate 5 to the condenser 12.
  • the sprinkling barrel 21 may be provided with a first level sensor 22 for detecting a level of collected meltwater in real time.
  • the discharge tube 6 may be provided with a first valve 23 for selectively discharging meltwater collected in the sprinkling barrel 21.
  • a water collecting barrel 24 is disposed under the condenser 12 to collect water flowing down along the outer surface of the condenser 12.
  • the water collecting barrel 24 may be connected to a discharge tube 25 for discharging the collected water out of the ice making machine.
  • the water collecting barrel 24 may be provided with a second level sensor 26 for detecting a level of water collected in the water collecting barrel 24.
  • the discharge tube 25 may be provided with a second valve 27 for selectively discharging water.
  • a circulation tube 28 may connect the water collecting barrel 24 and the sprinkling barrel 21 to each other.
  • the circulation tube 28 may be provided with a circulation pump 29 for pumping water from the water collecting barrel 24 to the sprinkling barrel 21.
  • the blower fan 13, the first level sensor 22, the first valve 23, the second level sensor 26, the second valve 27, and the circulation pump 29 may be electrically connected to a control unit 30 to operate in conjunction with one another.
  • the ice making unit 3 makes ice
  • the ice is dropped and stored in the storing compartment of the main body 1.
  • the ice stored in the storing compartment is melted to form meltwater.
  • the meltwater collected in the bottom of the storing compartment is collected in the water collecting plate 5 at the lower side of the storing compartment.
  • the meltwater collected in the water collecting plate 5 is collected in the sprinkling barrel 21 through the discharge tube 6.
  • the first valve 23 provided to the discharge tube 6 prevents the meltwater collected in the water collecting plate 5 from moving to the sprinkling barrel 21.
  • the first valve 23 When cooling of the condenser 12 is necessary, the first valve 23 is opened to sprinkle the meltwater collected in the sprinkling barrel 21 to the upper portion of the condenser 12 through the sprinkling holes (not shown). At this point, the control unit 30 operates the blower fan 13 to supply air to the condenser 12.
  • the water sprinkled from the sprinkling barrel 21 and flowing down along the outer surface of the condenser 12 is evaporated by the air supplied by the blower fan 13 and absorbs heat of vaporization from the condenser 12, thereby cooling the condenser 12.
  • the rest of the water flowing down along the outer surface of the condenser 12 is collected in the water collecting barrel 24 under the condenser 12.
  • the circulation pump 29 installed on the circulation tube 28 between the water collecting barrel 24 and the sprinkling barrel 21 pumps the water from the water collecting barrel 24 to the sprinkling barrel 21, to thereby reuse it.
  • the water collecting barrel 24 is connected to the discharge tube 25, and the second valve 27 is installed on the discharge tube 25, when the sprinkling barrel 21 or the water collecting barrel 24 overflows, or cooling of the condenser 12 is unnecessary, the water collected in the water collecting plate 24 may be discharged out of the ice making machine, instead of pumping the water to the sprinkling barrel 21.
  • a water supply unit is disposed at an opposite side of a condenser to a blower fan, and is spaced apart from the condenser.
  • Fig. 4 is a perspective view illustrating a configuration for cooling a condenser according to the current embodiment.
  • Fig. 5 is a side view illustrating the configuration of Fig. 4 .
  • a second water supply unit 20 includes a sprinkling barrel 121, a first level sensor 22, a first valve 23, a water collecting barrel 24, a discharge tube 25, a second level sensor 26, a second valve 27, a circulation tube 28, and a circulation pump 29.
  • the sprinkling barrel 121 is disposed under the discharge tube 6.
  • the sprinkling barrel 121 is spaced a distance L from the upper end of a condenser 12, and thus is disposed at the front upper side of the condenser 12. That is, the sprinkling barrel 121 is disposed over the condenser 12 at a position horizontally spaced apart from the condenser 12.
  • the sprinkling barrel 121 may be disposed in front of the condenser 12 as illustrated in Figs. 4 and 5 .
  • the lower end of the discharge tube 6 communicates with the sprinkling barrel 121.
  • Water collected in the water collecting plate 5 is discharged to the sprinkling barrel 121 through the discharge tube 6.
  • One or more discharge holes are arrayed in the sprinkling barrel 121 in a width direction of the condenser 12. Water collected in the sprinkling barrel 121 is sprinkled through the discharge holes. At this point, the water is sprinkled in a direction parallel to the front surface of the condenser 12.
  • the discharge holes are disposed out of a region that vertically overlaps the condenser 12.
  • the first level sensor 22 may be provided to the sprinkling barrel 121 to detect the level of water in the sprinkling barrel 121.
  • the water collecting barrel 24 is disposed under the condenser 12. Water flowing down along the outer surface of the condenser 12 may be stored in the water collecting barrel 24. Water, which is discharged from the sprinkling barrel 121 and does not arrive at the condenser 12, may be dropped and stored in the water collecting barrel 24. That is, the water collecting barrel 24 may be disposed at the vertical low side of the sprinkling barrel 121.
  • the water collecting barrel 24 may be connected to the discharge tube 25 for discharging water from the water collecting barrel 24 to the outside of the ice making machine.
  • the water collecting barrel 24 may be provided with the second level sensor 26 for detecting the level of water collected in the water collecting barrel 24.
  • the discharge tube 25 may be provided with the second valve 27 for selectively discharging water collected in the water collecting barrel 24.
  • the water collecting barrel 24 is connected to the sprinkling barrel 121 through the circulation tube 28.
  • the circulation tube 28 may be provided with the circulation pump 29 for pumping water from the water collecting barrel 24 to the sprinkling barrel 121.
  • the blower fan 13 is disposed behind the condenser 12.
  • the blower fan 13 sucks air from the front side thereof, and blows the air to the rear side thereof. That is, air flows from the condenser 12 to the blower fan 13.
  • Water sprinkled to the front side of the condenser 12 is moved to the condenser 12 by an air flow, and contacts the outer surface of the condenser 12. That is, the sprinkling barrel 121 is disposed at a side of the condenser 12 with respect to a vertical center line C of the condenser 12, and the blower fan 13 is disposed at the other side of the condenser 12 with respect to the vertical center line C. In other words, the sprinkling barrel 121 is opposite to the blower fan 13 with respect to the condenser 12.
  • the condenser 12 includes refrigerant tubes 120 that have a vertical long oval shape in a cross-section thereof.
  • refrigerant tubes 120 that have a vertical long oval shape in a cross-section thereof.
  • an area of the oval shape contacting water is greater than that of a circular shape in a cross-section thereof, the amount of water evaporated from the outer surface of the refrigerant tube 120 can be increased. Accordingly, since water flowing along the outer surface of the refrigerant tube 120 absorbs more heat from the refrigerant tube 120, the condenser 12 can be more efficiently cooled.
  • the blower fan 13, the first level sensor 22, the first valve 23, the second level sensor 26, the second valve 27, and the circulation pump 29 may be electrically connected to a control unit (not shown) 30 to operate in conjunction with one another.
  • Fig. 6 is a graph showing a relationship between power consumption and a distance between a sprinkling barrel and a condenser according to another embodiment.
  • the sprinkling barrel 121 is spaced the distance L from the upper end of the condenser 12, and thus is disposed at the front upper side of the condenser 12.
  • the distance L may be determined to minimize power consumption of a cooling device for the condenser 12.
  • the distance L When the blower fan 13 is rotated with a motor of about 60 W, a relationship between the distance L and power consumption of the cooling device is shown in Fig. 6 .
  • the distance L When the distance L is about 15mm, the power consumption is about 5.01 kWh that is the minimum. Thus, when the distance L is maintained at about 15mm, the power consumption can be minimized.
  • the distance L may be determined according to a condition of the cooling device such as the type of a motor included in the cooling device.
  • Ice made in the ice making unit 3 is stored in the storing compartment of the main body 1. Over time, the ice stored in the storing compartment is melted to water. The water is collected in the water collecting plate 5 disposed in the storing compartment. The water collected in the water collecting plate 5 is discharged to the sprinkling barrel 121 through the discharge tube 6.
  • the first valve 23 provided to the discharge tube 6 is opened or closed to selectively discharge the water. That is, when the sprinkling barrel 121 overflows, or cooling of the condenser 12 is unnecessary, the first valve 23 is closed to prevent the water collected in the water collecting plate 5 from being discharged to the sprinkling barrel 121.
  • the first valve 23 When cooling of the condenser 12 is necessary, the first valve 23 is opened.
  • the water collected in the sprinkling barrel 21 is sprinkled to the front side of the condenser 12 through the discharge holes (not shown).
  • the blower fan 13 sucks air from the condenser 12.
  • the water sprinkled to the front side of the condenser 12 is moved by a flow of the sucked air, and contacts the condenser 12.
  • the water contacting the condenser 12 flows down along the outer surface of the condenser 12, and is evaporated by the sucked air.
  • the water absorbs heat of vaporization from the condenser 12, thereby cooling the condenser 12.
  • the rest of the water flowing down along the outer surface of the condenser 12 is collected in the water collecting barrel 24 under the condenser 12.
  • the water collected in the water collecting barrel 24 may be pumped to the sprinkling barrel 121.through the circulation tube 28 by the circulation pump 29.
  • the water pumped to the sprinkling barrel 121 may be reused to cool the condenser 12.
  • the water collected in the water collecting barrel 24 may be discharged through the discharge tube 25.
  • the second valve 27 installed on the discharge tube 25 may be opened and closed to selectively discharge the water from the water collecting barrel 24 to the outside of the ice making machine, instead of pumping the water to the sprinkling barrel 121.
  • the second valve 27 is opened to discharge the water collected in the water collecting barrel 24 through the discharge tube 25.
  • cooling efficiency for a condenser may be improved by an air flow and heat of vaporization during evaporation of water.
  • power consumption for operating a blower fan can be reduced, a noise from the blower fan can be decreased.
  • cool water generated from ice melted in a storing compartment is sprinkled to the condenser to thereby further improve the cooling efficiency for the condenser.
  • meltwater and water collected in a water collecting barrel are reused, water consumption for cooling can be significantly reduced.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Other Air-Conditioning Systems (AREA)
EP11175665.6A 2010-07-28 2011-07-27 Machine de fabrication de glace Active EP2413069B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100073043A KR20120011272A (ko) 2010-07-28 2010-07-28 제빙기의 응축기 냉각장치
KR1020110006520A KR20120085099A (ko) 2011-01-21 2011-01-21 제빙기

Publications (3)

Publication Number Publication Date
EP2413069A2 true EP2413069A2 (fr) 2012-02-01
EP2413069A3 EP2413069A3 (fr) 2017-08-09
EP2413069B1 EP2413069B1 (fr) 2018-11-28

Family

ID=44674163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11175665.6A Active EP2413069B1 (fr) 2010-07-28 2011-07-27 Machine de fabrication de glace

Country Status (3)

Country Link
US (1) US20120024000A1 (fr)
EP (1) EP2413069B1 (fr)
CN (1) CN102345952A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423930B (zh) * 2012-05-23 2017-03-15 杭州三花研究院有限公司 一种制冰机
WO2014081920A1 (fr) 2012-11-21 2014-05-30 True Manufacturing Company, Inc. Bac de rangement de glaçon ayant une porte améliorée, et porte améliorée comprenant des crochets
WO2014081990A1 (fr) * 2012-11-21 2014-05-30 True Manufacturing Co., Inc. Machine à glaçons munie d'un bac évitant la bouillie de glace
WO2018128969A1 (fr) 2017-01-03 2018-07-12 Blosser Greg L Unité comprimée de stockage et de distribution pour glace
CN108168198B (zh) * 2017-12-25 2020-04-17 合肥华凌股份有限公司 冷凝散热总成和具有其的冰箱
CN109945566B (zh) * 2019-04-23 2023-12-29 丹顶鹤智能科技(江苏)有限公司 一种新型旋转式制冰装置

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Title
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Also Published As

Publication number Publication date
US20120024000A1 (en) 2012-02-02
EP2413069A3 (fr) 2017-08-09
EP2413069B1 (fr) 2018-11-28
CN102345952A (zh) 2012-02-08

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