EP1831619B1 - A cooling device - Google Patents

A cooling device Download PDF

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Publication number
EP1831619B1
EP1831619B1 EP05826524.0A EP05826524A EP1831619B1 EP 1831619 B1 EP1831619 B1 EP 1831619B1 EP 05826524 A EP05826524 A EP 05826524A EP 1831619 B1 EP1831619 B1 EP 1831619B1
Authority
EP
European Patent Office
Prior art keywords
refrigerant fluid
outlet
cooling device
dryer
filter
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.)
Active
Application number
EP05826524.0A
Other languages
German (de)
French (fr)
Other versions
EP1831619A2 (en
Inventor
Cemil Inan
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to PL05826524T priority Critical patent/PL1831619T3/en
Publication of EP1831619A2 publication Critical patent/EP1831619A2/en
Application granted granted Critical
Publication of EP1831619B1 publication Critical patent/EP1831619B1/en
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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • 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
    • 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
    • F25B2500/12—Sound

Definitions

  • This invention relates to a cooling device comprising a dryer in its cooling cycle.
  • a dryer between the condenser and the capillary tube is utilized in the cooling cycle to withhold the impurities in the circulating refrigerant fluid and to prevent these impurities from clogging especially the capillary tube and to absorb the moisture of the refrigerant fluid.
  • circulation of the refrigerant fluid may generate noise as a consequence of various reasons.
  • One of the most important reasons for this noise is the creation of a vortex or turbulence at the entrance to the capillary tubes by the refrigerant fluid which is in a liquid and gas phase in the dryer.
  • DE7638017U1 relates to a cooling device including a body for drying with a plate extending over the whole cross section.
  • the object of the present invention is to design a cooling device comprising a dryer which prevents noise by avoiding the formation of a vortex or turbulence during the circulation of the refrigerant fluid.
  • the cooling device (1) of the present invention comprises a compressor (2) providing the compression of the refrigerant fluid, a condenser (4) which condenses the refrigerant fluid leaving the compressor (2) as overheated vapour, making it first to pass into liquid-vapour phase then into liquid phase, one or more capillary tubes (5) providing the refrigerant fluid to attenuate and to entirely pass into the liquid phase, one or more evaporators (3) transmitting the condensed fluid, cooling the medium by absorbing heat of the medium and providing the refrigerant fluid to cool the cooling compartment by absorbing heat, and a dryer (6) situated between the condenser (4) and the capillary tubes (5), preventing the clogging of particularly the capillary tubes (5) by withholding the impurities contained within the refrigerant fluid circulating in the cooling cycle and absorbing the moisture in the refrigerant fluid (Figure 1).
  • the dryer (6) comprises preferably a cylindrical body (7), an inlet (8) which is attached to the outlet of the condenser (4) situated at one end of the body (7) and through which the refrigerant fluid flowing through the condenser (4) is transmitted, an outlet (9) attached to the inlet of the capillary tubes (5) providing flow of the refrigerant fluid into the capillary tubes (5), a filter group (10) situated between the inlet (8) and the outlet (9), withholding the impurities of various sizes and the moisture contained within the refrigerant fluid, and one or more plates (15) positioned between the filter group (10) and the outlet (9) situated on the inner wall of the body(7), preventing the creation of a vortex and turbulence by the refrigerant fluid flowing through the filter group (10) and reducing the noise caused by the vortex and turbulence to a minimum level ( Figure 2, Figure 3 , and Figure 4).
  • the plate (15) is positioned on the inner wall of the body (7), around the outlet (9).
  • the plate (15) comprises holes (16) of various sizes and numbers ( Figure 5 ).
  • the plate (15) comprises one or more bends (17) at different angles ( Figure 6 ).
  • the filter group (10) comprises a coarse filter (11) which receives the refrigerant fluid entering through the inlet (8) and withholds the larger sized impurities, one or more moisture filters (14) after the coarse filter (11) which entraps the moisture contained in the refrigerant fluid, and a fine filter (12) situated after the moisture entrapping filter (14) which withholds smaller sized impurities contained in the refrigerant fluid that the coarse filter (11) can not withhold.
  • the filter group (10) comprises one or more additional filters (13) positioned after the fine filter (12) and before the outlet (9) which withholds the smaller sized impurities that even the fine filter (12) cannot withhold ( Figure 7 ).
  • the section of the capillary tube (5) entering through the outlet (9) situated on the dryer (6) that is between the filter group (10) in the dryer (6) and the outlet (9) is bent with an angle preferably between 0 and 45 degrees.
  • the noise created due to vortex and turbulence is reduced to a minimum level ( Figure 8 ).
  • the noise created by the vortex and turbulence during the flow of the refrigerant fluid from the dryer (6) to the capillary tube (5) is reduced to a minimum level by utilizing the plate (15) situated in the dryer (6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Compressor (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Description

  • This invention relates to a cooling device comprising a dryer in its cooling cycle.
  • A dryer between the condenser and the capillary tube is utilized in the cooling cycle to withhold the impurities in the circulating refrigerant fluid and to prevent these impurities from clogging especially the capillary tube and to absorb the moisture of the refrigerant fluid.
  • In state-of-the-art embodiments, as the compressor starts to operate, circulation of the refrigerant fluid may generate noise as a consequence of various reasons. One of the most important reasons for this noise is the creation of a vortex or turbulence at the entrance to the capillary tubes by the refrigerant fluid which is in a liquid and gas phase in the dryer.
  • In the current state-of-the-art, in British Patent Application no. GB1435490 , a description is given of a dryer composed of two tubes one inside the other providing the dryness of the compressed refrigerant and separating the impurities contained within.
  • In the current state-of-the-art, in German Patent Application no. DE2656664 , as it flows through the dryer, the refrigerant fluid makes a circular motion to separate the impurities.
  • In another state-of-the-art, in United States of America Patent no. US6681596 , the fixing of the dryer to the tube transferring the refrigerant to the dryer is described.
  • DE7638017U1 relates to a cooling device including a body for drying with a plate extending over the whole cross section. The object of the present invention is to design a cooling device comprising a dryer which prevents noise by avoiding the formation of a vortex or turbulence during the circulation of the refrigerant fluid.
  • The cooling device designed to fulfill the objective of the present invention is shown in the attached figures, where:
    • Figure 1 - is the schematic view of a refrigerant cycle.
    • Figure 2 - is the schematic view of a according to the present invention.
    • Figure 3 - is the sectional view of the body inner wall and the plates mounted on the body inner wall.
    • Figure 4 - is the perspective view of the body inner wall and the plates mounted on the body inner wall.
    • Figure 5 - is the schematic view of a plate with holes according to a preferred embodiment.
    • Figure 6 - is the schematic view of a plate with a bend according to another preferred embodiment.
    • Figure 7 - is the schematic view of a dryer having an additional filter according to a preferred embodiment.
    • Figure 8 - is the schematic view of a dryer and the capillary tube inserted into the dryer with a certain angle according to a preferred embodiment.
  • Elements shown in the figures are numbered as follows:
    1. 1. Cooling device
    2. 2. Compressor
    3. 3. Evaporator
    4. 4. Condenser
    5. 5. Capillary tube
    6. 6. Dryer
    7. 7. Body
    8. 8. Inlet
    9. 9. Outlet
    10. 10. Filter group
    11. 11. Coarse filter
    12. 12. Fine filter
    13. 13. Additional filter
    14. 14. Moisture filter
    15. 15. Plate
    16. 16. Hole
    17. 17. Bend
  • The cooling device (1) of the present invention comprises a compressor (2) providing the compression of the refrigerant fluid, a condenser (4) which condenses the refrigerant fluid leaving the compressor (2) as overheated vapour, making it first to pass into liquid-vapour phase then into liquid phase, one or more capillary tubes (5) providing the refrigerant fluid to attenuate and to entirely pass into the liquid phase, one or more evaporators (3) transmitting the condensed fluid, cooling the medium by absorbing heat of the medium and providing the refrigerant fluid to cool the cooling compartment by absorbing heat, and a dryer (6) situated between the condenser (4) and the capillary tubes (5), preventing the clogging of particularly the capillary tubes (5) by withholding the impurities contained within the refrigerant fluid circulating in the cooling cycle and absorbing the moisture in the refrigerant fluid (Figure 1).
  • The dryer (6) comprises preferably a cylindrical body (7), an inlet (8) which is attached to the outlet of the condenser (4) situated at one end of the body (7) and through which the refrigerant fluid flowing through the condenser (4) is transmitted, an outlet (9) attached to the inlet of the capillary tubes (5) providing flow of the refrigerant fluid into the capillary tubes (5), a filter group (10) situated between the inlet (8) and the outlet (9), withholding the impurities of various sizes and the moisture contained within the refrigerant fluid, and one or more plates (15) positioned between the filter group (10) and the outlet (9) situated on the inner wall of the body(7), preventing the creation of a vortex and turbulence by the refrigerant fluid flowing through the filter group (10) and reducing the noise caused by the vortex and turbulence to a minimum level (Figure 2, Figure 3, and Figure 4).
  • The plate (15) is positioned on the inner wall of the body (7), around the outlet (9).
  • In a preferred embodiment of the present invention, the plate (15) comprises holes (16) of various sizes and numbers (Figure 5).
  • In yet another preferred embodiment of the present invention, the plate (15) comprises one or more bends (17) at different angles (Figure 6). In a preferred embodiment the filter group (10) comprises a coarse filter (11) which receives the refrigerant fluid entering through the inlet (8) and withholds the larger sized impurities, one or more moisture filters (14) after the coarse filter (11) which entraps the moisture contained in the refrigerant fluid, and a fine filter (12) situated after the moisture entrapping filter (14) which withholds smaller sized impurities contained in the refrigerant fluid that the coarse filter (11) can not withhold.
  • In a preferred embodiment, the filter group (10) comprises one or more additional filters (13) positioned after the fine filter (12) and before the outlet (9) which withholds the smaller sized impurities that even the fine filter (12) cannot withhold (Figure 7).
  • In another embodiment, the section of the capillary tube (5) entering through the outlet (9) situated on the dryer (6) that is between the filter group (10) in the dryer (6) and the outlet (9) is bent with an angle preferably between 0 and 45 degrees. Thus the noise created due to vortex and turbulence is reduced to a minimum level (Figure 8).
  • With the embodiment of the present invention, the noise created by the vortex and turbulence during the flow of the refrigerant fluid from the dryer (6) to the capillary tube (5) is reduced to a minimum level by utilizing the plate (15) situated in the dryer (6).

Claims (10)

  1. A cooling device (1) comprising a compressor (2) providing the compression of the refrigerant fluid, a condenser (4) through which the refrigerant fluid leaving the compressor (2) passes and one or more capillary tubes (5) and a dryer (6) situated between the condenser (4) and the capillary tubes (5), comprising a body (7), an inlet (8) attached to the outlet of the condenser (4) from one end of the body (7) and through which the refrigerant fluid flowing through the condenser (4) is transmitted, an outlet (9) attached to the inlet of the capillary tube (5), providing the refrigerant fluid to flow into the capillary tubes (5), one or more filter groups (10) situated between the inlet (8) and the outlet (9), withholding the impurities of various sizes and the moisture contained within the refrigerant fluid, and one or more plates (15) positioned between the filter group (10) and the outlet (9) characterized by each plate (15) extending from a connecting portion at the inner wall of the body (7) to a free end in the interior of the body (7), said one or more plates (15) preventing the creation of a vortex and turbulence by the refrigerant fluid flowing through the filter group (10) at the outlet attached to the inlet of the capillary tube (5) and reducing the noise caused by the vortex and turbulence to a minimum level.
  2. The cooling device (1) as in Claim 1, characterized by a dryer (6) comprising plates (15) positioned around the outlet (9), on the inner wall of the body (7) where the filter group (10) and the outlet (9) are situated.
  3. The cooling device (1) as in Claim 1 or 2, characterized by a dryer (6) comprising a plate (15) having holes (16) of various sizes and numbers.
  4. The cooling device (1) as in Claim 1, 2 or 3, characterized by a dryer (6) comprising a plate (15) having one or more bends (17) at various angles.
  5. The cooling device (1) as in any one of the above claims, characterized by a dryer (6) comprising a filter group (10) having a coarse filter (11) which receives the refrigerant fluid entering through the inlet (8) and withholds the larger sized impurities, one or more moisture filters (14) after the coarse filter (11) which entraps the moisture contained in the refrigerant fluid, a fine filter (12) situated after the moisture filter (14) which withholds smaller sized impurities contained in the refrigerant fluid that the coarse filter (11) can not withhold and one or more additional filters (13) situated after the fine filter (12), withholding smaller sized impurities that even the fine filter (12) cannot withhold.
  6. The cooling device (1) as in Claim 1, characterized by a capillary tube (5) entering into the dryer (6) through the outlet (9), having its end between the filter group (10) and the outlet (9) bent at a certain angle.
  7. The cooling device (1) as in Claim 6, characterized by a capillary tube (5), having its end entering into the dryer (6) through the outlet (9) bent at an angle between 0 and 45 degrees.
  8. The cooling device (1) as in any one of the above claims, characterized in that the free end of each plate (15) is ending at less than half the distance between the connecting portion for the same plate (15) at the inner wall of the body (7) and an opposite portion of the inner wall such that in the centre of the interior of the body (7) a continuous flow of refrigerant fluid is made possible.
  9. The cooling device (1) as in Claim 8, characterized by two pairs of two plates (15) each of which are facing each other, the plates (15) of the two pairs extending perpendicularly to each other.
  10. The cooling device (1) as in any one of the above claims, wherein the inner wall of the body (7) is semi-spherical.
EP05826524.0A 2004-12-24 2005-12-24 A cooling device Active EP1831619B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05826524T PL1831619T3 (en) 2004-12-24 2005-12-24 A cooling device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200403611 2004-12-24
PCT/IB2005/054397 WO2006067766A2 (en) 2004-12-24 2005-12-24 A cooling device

Publications (2)

Publication Number Publication Date
EP1831619A2 EP1831619A2 (en) 2007-09-12
EP1831619B1 true EP1831619B1 (en) 2018-03-14

Family

ID=36445916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05826524.0A Active EP1831619B1 (en) 2004-12-24 2005-12-24 A cooling device

Country Status (4)

Country Link
EP (1) EP1831619B1 (en)
PL (1) PL1831619T3 (en)
TR (1) TR201716548T3 (en)
WO (1) WO2006067766A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101886862B (en) * 2010-06-10 2011-11-09 合肥美的荣事达电冰箱有限公司 Capillary tube forming tool
DE102015000520A1 (en) * 2015-01-19 2016-07-21 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7638017U1 (en) * Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart
US5934102A (en) * 1998-02-06 1999-08-10 Modine Manufacturing Company Integral receiver/condenser for a refrigerant
US6125652A (en) * 1999-08-27 2000-10-03 Ardco, Inc. Apparatus for minimizing refrigerant usage

Also Published As

Publication number Publication date
EP1831619A2 (en) 2007-09-12
WO2006067766A2 (en) 2006-06-29
WO2006067766A3 (en) 2006-08-31
PL1831619T3 (en) 2018-11-30
TR201716548T3 (en) 2017-12-21

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