WO2014198555A1 - A cooling device comprising a flow regulator - Google Patents

A cooling device comprising a flow regulator Download PDF

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Publication number
WO2014198555A1
WO2014198555A1 PCT/EP2014/061224 EP2014061224W WO2014198555A1 WO 2014198555 A1 WO2014198555 A1 WO 2014198555A1 EP 2014061224 W EP2014061224 W EP 2014061224W WO 2014198555 A1 WO2014198555 A1 WO 2014198555A1
Authority
WO
WIPO (PCT)
Prior art keywords
flow regulator
pipe
cooling device
outlet pipe
evaporator
Prior art date
Application number
PCT/EP2014/061224
Other languages
English (en)
French (fr)
Inventor
Aleks KUYUMCUOGLU
Ozgun SAKALLI
Caner SIMSEK
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP14727485.6A priority Critical patent/EP3008401B1/en
Priority to PL14727485T priority patent/PL3008401T3/pl
Publication of WO2014198555A1 publication Critical patent/WO2014198555A1/en

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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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • 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
    • F25B2400/02—Centrifugal separation of gas, liquid or oil
    • 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
    • F25B2400/23—Separators
    • 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

  • the present invention relates to a cooling device comprising a flow regulator which reduces the noise originating from the fluid during the refrigeration cycle.
  • capillary pipes are used in order to lower the pressure of the cooling device fluid.
  • the fluid In order to deliver the fluid, the pressure of which is decreased by means of the capillary pipes, to the evaporator, it is required to be transferred into wider pipes. Noise is generated due to the vibration and turbulence originating from the sudden pressure difference during the transfer of the fluid from the capillary pipes with narrow cross-sectional area to the pipes having wider cross-sectional area.
  • the fluid generally has two phases at the outlet of the capillary pipe and the flow rate is high.
  • the fluid is in the gas phase at the evaporator outlet.
  • the fluid that is two-phased or in the gas phase and that tends to have hydrodynamic instability causes the generation of noise.
  • utilization of porous flow regulators is known in order to absorb the said disturbing sound which can be generally heard from the outside.
  • the aim of the present invention is the realization of a cooling device comprising a flow regulator that reduces the noise originating from the fluid.
  • the cooling device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a compressor that enables the refrigeration cycle to be performed, a condenser that transfers thermal energy to the outside environment, an evaporator that draws the thermal energy in the environment being cooled, a capillary pipe that is disposed between the condenser and the evaporator and that enables the refrigerant at the outlet of the condenser to be delivered to the evaporator by expanding, and a return pipe disposed between the evaporator and the compressor.
  • the cooling device of the present invention comprises an inlet pipe connected to the evaporator inlet, an outlet pipe connected to the outlet of the capillary pipe, and a flow regulator that is disposed between the outlet pipe and the inlet pipe and that prevents the noise originating from the refrigerant, with one end being connected to the inlet pipe so as to be in the same direction as the inlet pipe, and the outlet pipe being connected to the other end thereof tangentially in the vertical direction.
  • the flow regulator disposed between the capillary pipe and the inlet pipe, the cavitations and vibration noise originating from pressure change during transfer of the refrigerant between pipes with different diameters are dampened effectively.
  • the refrigerant flows from the outlet pipe to the flow regulator so as to be tangent to the wall of the flow regulator.
  • the refrigerant shows a tendency to flow close to the walls of the flow regulator with the effect of liquid phase centrifugal force as a result of flowing from the outlet pipe connected with a bend-like structure and turning while passing through the flow regulator.
  • a stable flow is provided and noise originating from flow is decreased.
  • the inner wall of the flow regulator is porous.
  • the flow speed of the fluid decreases and turbulence, and hence noise, is prevented from being generated.
  • the flow regulator is configured as a hollow cylinder and enables the refrigerant to flow helically on the inner wall.
  • the cooling device comprises an orifice that is arranged on the flow regulator and that enables the outlet pipe to be mounted so as to extend vertically to the flow regulator and tangentially to its cylindrical outer surface.
  • the cross-sectional area of the orifice is almost equal to the cross-sectional area of the outlet pipe and enables the refrigerant to flow from the outlet pipe to the flow regulator in a leak-proofing manner.
  • the end of the flow regulator extending to the outlet pipe is almost entirely closed and the end thereof opening to the inlet pipe is open.
  • the flow regulator is in frustoconical form and gets wider from the outlet pipe towards the inlet pipe. While passing through the flow regulator, the physical characteristics of the fluid changes slowly and decisively. Thus, since no air bubbles are formed in the fluid and the sudden change of the fluid pressure is prevented, and the noise originating from the bursting of the bubbles in the fluid, the turbulence and/or the vibration is prevented.
  • the flow regulator is connected to the outlet pipe and the inlet pipe by welding. Connecting the simple structured pipes with welding provides savings in material costs.
  • the flow regulator prevents generation of noise by directing the flow between the inlet pipe and the capillary pipe where the level of noise is high by enabling the fluid to turn and flow thereinto after leaving the outlet pipe.
  • Figure 1 – is the schematic view of the cooling device.
  • Figure 2 – is the perspective view of the flow regulator related to an embodiment of the present invention.
  • Figure 3 — is the perspective view of the outlet pipe, the flow regulator and the inlet pipe related to an embodiment of the present invention.
  • the cooling device (1) comprises a compressor (2) enabling the refrigeration cycle to be performed, a condenser (3) that transfers thermal energy to the outside environment, an evaporator (4) that draws thermal energy from the environment being cooled and at least one capillary pipe (5) that is disposed between the condenser (3) and the evaporator (4) and that enables the refrigerant to be delivered to the evaporator (4) by expanding at the outlet of the condenser (3).
  • the cooling device (1) of the present invention comprises an inlet pipe (6) connected to the evaporator (4) inlet, an outlet pipe (7) connected to the outlet of the capillary pipe (5), and a flow regulator (8) that is disposed between the outlet pipe (7) and the inlet pipe (6), with one end being connected to the inlet pipe (6) so as to be in the same direction as the inlet pipe (6) and the outlet pipe (7) being connected to the other end thereof tangentially in the vertical direction.
  • the outlet pipe (7) being placed to the flow regulator (8) tangentially, the two phase refrigerant is split into phases while passing from the outlet pipe (7) into the flow regulator (8) with the effect of centrifugal force.
  • the liquid phase flows towards the inlet pipe (6) by skimming the inner wall of the flow regulator (8) and the gas phase flows towards the inlet pipe (6) approximately through the center of the flow regulator (8). Consequently, the acoustical energy of the fluid is decreased and generation of noise is prevented.
  • the flow regulator (8) is configured as a hollow cylinder and enables the refrigerant to flow helically by its inner wall.
  • the cooling device (1) comprises an orifice (9) that is arranged on the flow regulator (8) and that enables the outlet pipe (7) to be mounted so as to extend vertically to the flow regulator (8) and tangentially to its cylindrical outer surface.
  • the end of the flow regulator (8) extending to the outlet pipe (7) is almost entirely closed and the end opening to the inlet pipe (6) is open.
  • the flow regulator (8) is in frustoconical form and gets wider from the outlet pipe (7) towards the inlet pipe (6).
  • the fluid that leaves the capillary pipe (5) with increased speed slows down while moving forward inside the flow regulator (8) and the acoustic energy thereof is decreased.
  • the flow regulator (8) is connected to the outlet pipe (7) and the inlet pipe (6) by welding. Connecting the simple structured pipes with welding provides savings in material costs.
  • the fluid is enabled to flow from the outlet pipe (7) to the flow regulator (8) so as to be tangential to the inner wall of the flow regulator (8). Consequently, generation of flow-based noise and/or originating from physical characteristics of the fluid is prevented and the cooling device (1) is enabled to operate more silently.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Details Of Valves (AREA)
PCT/EP2014/061224 2013-06-10 2014-05-30 A cooling device comprising a flow regulator WO2014198555A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14727485.6A EP3008401B1 (en) 2013-06-10 2014-05-30 A cooling device comprising a flow regulator
PL14727485T PL3008401T3 (pl) 2013-06-10 2014-05-30 Urządzenie chłodzące zawierające regulator przepływu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2013/06969 2013-06-10
TR201306969 2013-06-10

Publications (1)

Publication Number Publication Date
WO2014198555A1 true WO2014198555A1 (en) 2014-12-18

Family

ID=50877278

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/061224 WO2014198555A1 (en) 2013-06-10 2014-05-30 A cooling device comprising a flow regulator

Country Status (3)

Country Link
EP (1) EP3008401B1 (pl)
PL (1) PL3008401T3 (pl)
WO (1) WO2014198555A1 (pl)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516944A (fr) * 1967-01-20 1968-02-05 Siemens Elektrogeraete Gmbh Machine frigorifique à compresseur incorporée à un réfrigérateur à isolement par mousse plastique
US5619861A (en) * 1994-04-12 1997-04-15 Nippondenso Co., Ltd. Refrigeration apparatus
EP0943879A2 (en) 1998-03-20 1999-09-22 Whirlpool Corporation Device for optimizing the flow of refrigerant fluid fed to an evaporator of a refrigeration circuit and acting as an expansion noise level reducer
WO2001067011A1 (en) * 2000-03-03 2001-09-13 Vai Holdings, Llc High efficiency refrigeration system
JP2008145030A (ja) * 2006-12-08 2008-06-26 Matsushita Electric Ind Co Ltd 多室形空気調和機
WO2012132317A1 (ja) * 2011-03-28 2012-10-04 株式会社デンソー 減圧装置および冷凍サイクル装置
DE102012204405A1 (de) * 2011-03-28 2012-10-04 Denso Corporation Kältemittelverteiler und kältekreislaufvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1516944A (fr) * 1967-01-20 1968-02-05 Siemens Elektrogeraete Gmbh Machine frigorifique à compresseur incorporée à un réfrigérateur à isolement par mousse plastique
US5619861A (en) * 1994-04-12 1997-04-15 Nippondenso Co., Ltd. Refrigeration apparatus
EP0943879A2 (en) 1998-03-20 1999-09-22 Whirlpool Corporation Device for optimizing the flow of refrigerant fluid fed to an evaporator of a refrigeration circuit and acting as an expansion noise level reducer
WO2001067011A1 (en) * 2000-03-03 2001-09-13 Vai Holdings, Llc High efficiency refrigeration system
JP2008145030A (ja) * 2006-12-08 2008-06-26 Matsushita Electric Ind Co Ltd 多室形空気調和機
WO2012132317A1 (ja) * 2011-03-28 2012-10-04 株式会社デンソー 減圧装置および冷凍サイクル装置
DE102012204405A1 (de) * 2011-03-28 2012-10-04 Denso Corporation Kältemittelverteiler und kältekreislaufvorrichtung

Also Published As

Publication number Publication date
EP3008401B1 (en) 2021-01-27
EP3008401A1 (en) 2016-04-20
PL3008401T3 (pl) 2021-07-12

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