WO2007034939A1 - 凝縮用熱変換装置及びそれを用いた冷凍システム - Google Patents
凝縮用熱変換装置及びそれを用いた冷凍システム Download PDFInfo
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- WO2007034939A1 WO2007034939A1 PCT/JP2006/318947 JP2006318947W WO2007034939A1 WO 2007034939 A1 WO2007034939 A1 WO 2007034939A1 JP 2006318947 W JP2006318947 W JP 2006318947W WO 2007034939 A1 WO2007034939 A1 WO 2007034939A1
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- Prior art keywords
- refrigerant
- pressure
- condensation
- temperature
- cooling
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Classifications
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- 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
- F25B39/04—Condensers
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- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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- 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
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- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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- 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 present invention relates to a heat conversion apparatus for condensation and a refrigeration system using the same, and more particularly to a heat conversion apparatus for condensing refrigerant used in the refrigeration system and a refrigeration sysram using the same.
- a refrigeration system used for a device for cooling an object to be cooled such as a refrigerator, a freezer, a cooling device, or the like, is composed of substantially the same components based on the same principle regardless of the size and use of the system.
- FIG. 4 is a block diagram for explaining the operation of a general refrigeration system.
- a refrigeration system is generally configured by connecting a compressor 1, a condenser 13, a receiver tank 14, an expansion valve 15, and an evaporator 11 with a refrigerant pipe 22. It circulates in the system in the direction of arrow 21 and carries heat. This refrigerant circulation is called the refrigeration cycle.
- a capillary tube may be used instead of the expansion valve 15. In this case, for example, an extremely thin tube having an inner diameter of about 0.8 mm.
- the refrigerant gas is compressed by the compressor 1 to be converted into a high-temperature high-pressure refrigerant gas and sent to the condenser 13.
- the high-temperature and high-pressure refrigerant gas releases heat and is cooled to become a medium-temperature refrigerant liquid, which is temporarily stored in the S receiver tank 14.
- the medium-temperature refrigerant liquid enters the evaporator 11 where the refrigerant gas is sucked by the compressor 1 and is depressurized, and evaporates to lower the temperature due to the evaporation heat. It becomes.
- the low-temperature refrigerant liquid takes heat from the surroundings and cools the surroundings (cooled object). At the same time, it becomes a low-temperature refrigerant gas, enters the compressor 1, is compressed again, and circulates as a high-temperature / high-pressure refrigerant gas. .
- the refrigerant circulates by radiating the heat obtained by cooling the surrounding object to be cooled by the evaporator 11 through the condenser 13.
- the medium is almost liquid in the vicinity of the inlet of the evaporator 11, but as it passes through the evaporator 11, it vaporizes and increases in gas, and completely gasifies in the vicinity of the outlet of the evaporator 11.
- the refrigerant is completely gasified.
- the gas is completely gasified before the outlet of the evaporator 11, and the temperature rises further.
- the refrigerant is a high-temperature / high-pressure gas in the vicinity of the inlet of the condenser 13 as illustrated in the phase change explanatory diagram of the refrigerant shown above the condenser 13 in FIG.
- the liquid gradually cools and becomes liquid near the outlet of the condenser 13.
- Various improvements have been made to each component in order to increase the efficiency of the refrigeration cycle. Especially, it is important to efficiently cool the refrigerant in the condenser.
- FIG. 5 is a schematic configuration diagram of a refrigeration cycle that is currently generally used in home refrigerators and the like.
- Refrigerant Fluorine, alternative chlorofluorocarbon, etc.
- the condenser 13 is forcibly cooled with a cooling fan 13-1 as necessary.
- the condenser 13 heats the pipe through which the refrigerant flows and the surrounding air in contact with each other to cool and liquefy the refrigerant.Therefore, a large pipe surface area is preferable for the entire refrigeration system. The occupied volume increases.
- Patent Document 2 discloses a system in which a refrigerant discharged from a compressor is cooled by a cooling fan through a spiral tube, and further reduced in pressure by another thin tube to be liquidized.
- Patent Document 1 Japanese Patent Laid-Open No. 10-259958
- Patent Document 2 Japanese Patent Laid-Open No. 2002-122365
- Patent Document 1 requires two layers of heat exchange to divide the refrigerant discharged from the compressor into two systems and perform heat exchange, and thus the structure becomes complicated. There's a problem.
- the system described in Patent Document 2 has a problem in that it is necessary to newly add a decompression means to the conventional refrigeration system in order to decompress the capillary tube.
- the present invention has been made in order to solve the above-described problems of the conventional refrigeration system.
- the purpose of the present invention is to provide a heat conversion device for condensation (in the present invention, a condenser, receiver tank, and expansion valve of a conventional refrigeration system). (The part that includes this function is called a heat converter for condensation) • Aiming to preserve the global environment by promoting lighter weight, reducing the size and cost of refrigeration systems, and reducing energy consumption.
- the object is to provide a heat conversion device for condensing that can carry one blade, and a refrigeration system using the same.
- the present invention is a heat conversion apparatus for condensing that uses a high-temperature / high-pressure refrigerant gas discharged from a compressor of a refrigeration system as a low-temperature refrigerant liquid, wherein the high-temperature / high-pressure refrigerant gas is cooled by isobaric change.
- a reduced pressure cooling unit that cools the passed refrigerant by depressurization and enthalpy reduction by the acceleration phenomenon of the refrigerant.
- the flow path may be narrowed in the order of the isobaric cooling section, the reduced pressure liquefying section, and the reduced pressure cooling section. Moreover, you may provide an expansion
- the flow rate of the reduced pressure liquefaction unit may be more than twice the flow rate of the isobaric cooling unit.
- the isobaric cooling unit may be a mini heat exchanger that liquefies 5 to 50% by weight of the high-temperature / high-pressure refrigerant gas discharged from the compressor.
- the reduced-pressure liquid tank section is a spiral pipe that substantially liquefies the remaining gas refrigerant partially liquefied by the isobaric cooling section in a form in which a thin tube is spirally wound. It may be there.
- the reduced-pressure cooling unit is a spiral tubule in which a plurality of spiral tubes each having a thin tube spirally wound are arranged in parallel, and the refrigerant liquefied by the reduced-pressure liquefaction unit is cooled to form a low-temperature refrigerant liquid. It's good.
- the spiral tubule may be connected to the reduced pressure liquefaction section via a branch pipe, and connected to the evaporator via a collecting pipe.
- the condensing heat conversion device according to any one of claims 1 to 9 and the low-temperature refrigerant liquid are sucked from the condensing heat conversion device, and heat exchange with the object to be cooled is performed to cool the object to be cooled.
- a cooling fan is attached to the isobaric cooling unit, and the fan may operate when the temperature of the refrigerant gas discharged from the compressor is equal to or higher than a predetermined temperature.
- the channel cross-sectional area of the vacuum liquefaction unit may be set to 40 to 50%, and the channel cross-sectional area of the vacuum cooling unit may be set to 20 to 30%! / ,.
- the heat for condensing is based on the completion of the new condensing heat converter. This makes it possible to dramatically reduce the exchange area.
- this heat converter for condensation the structure of the refrigeration system can be made compact, and excessive energy consumption can be achieved for industrial use. This is a great invention that reduces and increases the volume and contributes to society, and can play a part in the conservation of the earth's current state.
- FIG. 1 is a configuration diagram showing an embodiment of the present invention.
- FIG. 2 is a Ph diagram of a refrigeration system according to an embodiment of the present invention.
- FIG. 3] a to e are plan views of main components constituting the heat conversion apparatus for condensation.
- FIG. 4 is a configuration diagram of a general refrigeration system.
- FIG. 5 is a configuration diagram of a conventional refrigeration system.
- FIG. 1 is a configuration diagram of a refrigeration system of a refrigeration system using a condensing heat conversion device 30 according to the present embodiment. It is.
- the terms “heat exchange device” and “heat conversion device” are used separately.
- the refrigeration system includes a compressor 1, a mini heat exchanger (isobaric cooling unit) 3, a spiral tube (vacuum liquefaction unit) 6, a spiral tube (vacuum cooling unit) 8, and an evaporator 11 as element devices.
- a compressor 1 a mini heat exchanger (isobaric cooling unit) 3, a spiral tube (vacuum liquefaction unit) 6, a spiral tube (vacuum cooling unit) 8, and an evaporator 11 as element devices.
- the refrigeration function is realized by circulating.
- the mini heat exchanger 3 or the mini fan 3-1 “ “Two” means “small” and is used to clarify the characteristics of the present invention that can reduce the condenser power compared to the conventional one.
- the parts corresponding to the condenser 13, receiver tank 14, and expansion valve 15 of the conventional refrigeration system shown in FIG. 4 are the heat exchanger 30 for condensation in this embodiment, the mini heat exchanger 3, and the refrigerant piping 4. , Large and short pipes 5, helical pipes 6, branch pipes 7, helical thin pipes 8, and collecting pipes 9.
- Compressor Evaporator 11 is basically the same in structure and function as those used in the current refrigeration system, so detailed description thereof is omitted here, and condensing is a feature of the present embodiment.
- the heat conversion device 30 will be described in detail.
- FIG. 2 is a Ph diagram of the refrigeration site of the refrigeration system using the heat converter 30 for condensation according to the present embodiment.
- the broken line indicates the conventional cycle, and the solid line indicates the cycle of the present embodiment.
- adiabatic compression by the compressor point a to point b
- condensation due to heat release from the isobaric change by the condenser point b to point c
- isenthalpy change point by the expansion valve throttling phenomenon
- the cycle is completed by c to point d), vaporization by endotherm of isothermal expansion and isothermal expansion (point d to point a).
- a high-temperature (40 ° C or higher) 'high-pressure (0.6 MPa or higher) gaseous refrigerant is discharged from the compressor 1 (point h to point i).
- Part of the refrigerant (5 to 50% by weight) is liquefied (point i to point j) by the mini heat exchanger 3 that is configured.
- the mini heat exchanger 3 shows a normal air-cooled type in which a heat dissipation fan is provided on the pipe through which the refrigerant passes.
- the mini heat exchanger 3 is not limited to this type, and may be a water-cooled type or the like.
- the high-temperature gas discharged from the compressor is capable of liquidizing almost all of the high-pressure gas. Since a part of the liquid is liquid, it can be made very small.
- the mini heat exchange device of the present embodiment can be about 1Z10 of a conventional condenser.
- the mini heat exchange device 3 is provided with a mini fan 3-1, which can be operated when a predetermined operating state is reached, as will be described later, to increase the heat exchange capacity.
- the refrigerant partially liquefied by the mini heat exchange device 3 enters the spiral pipe 6 through the refrigerant pipe 4 and the large and short pipes 5.
- it When viewed in terms of the cross-sectional area of the refrigerant flow path, with respect to the mini heat exchange device 3, it temporarily increases in the large and short tubes 5, and in the spiral tube 6, it becomes smaller than the cross-sectional area of the mini heat exchange device 3.
- FIG. 3 is a plan view showing the shapes of the large and short pipes 5, the helical pipe 6, the branch pipe 7, the helical thin pipe 8, and the collecting pipe 9.
- the large and short pipes 5 have a cylindrical shape with a central thick portion L1 of 10 to 50 mm and an inner diameter D1 of 8 to 20 mm. Since both ends thereof are connected to the refrigerant pipe 4 and the helical pipe 6, the shapes of the refrigerant pipe 4 and the helical pipe 6 are respectively inserted into the cylinders with dimensions that can be connected.
- the inner diameter D1 of the central thick part is preferably set larger than the inner diameters of the refrigerant pipe 4 and the helical pipe 6.
- the helical tube 6 has a form in which a thin tube is spirally wound.
- the inner diameter and the number of windings are determined from various specifications such as the refrigeration capacity of the refrigeration system, but allow an inner diameter of 2 to 150 mm, desirably an inner diameter of 2 to 50 mm, and most desirably an inner diameter of 3 to 8 m. m.
- a refrigerator of about 2000 calZh using Freon refrigerant R134a the inner diameter of the capillary tube is 5 mm, the number of turns is 23, the spiral diameter is 30 mm, and the length of the capillary is 2.3 m.
- the inner diameters of the refrigerant pipes 2 and 4 are 7.7 mm, and the inner diameters of the refrigerant pipe 10 and the suction pipe 12 are 10.7 mm.
- the helical tube 6 constitutes an energy conversion device that converts enthalpy into velocity energy.
- the flow rate of the refrigerant in the spiral tube 6 is preferably set to be twice or more the flow rate in the mini heat exchange device 3 in the design of the refrigeration system.
- the decompression liquefaction unit is a spiral tube 6 spirally wound, but as shown in Fig. 2, the gas refrigerant is almost liquidized with decompression and enthalpy reduction.
- it is not limited to a spiral tube, and may be a meandering tube, a straight tube, or the like.
- appropriate throttling means be interposed at the inlets of the meandering pipe or straight pipe, or at a plurality of locations in the middle of the pipe.
- the gas refrigerant is almost liquidized by means other than heat dissipation, that is, by conversion of entraumy into velocity energy in the reduced pressure liquid section.
- the spiral tubule 8 is in a form in which a tubule is spirally wound in the same manner as the spiral tube 6.
- the inner diameter of the spiral tube 8 is set to be smaller than the inner diameter of the spiral tube 6.
- the inner diameter of the spiral tube 8 is preferably 1.2 to 3 mm.
- three or more forces connecting two spirally wound pieces in parallel may be connected in parallel, or even one.
- two spiral tubules with different winding directions connected in series, or a configuration in which they are further connected in parallel may be used. It is preferable that the cross-sectional area of the portion of the spiral capillary 8 through which the refrigerant passes (the sum of the cross-sections of the plurality of pipes connected in parallel) is smaller than the cross-sectional area of the threaded pipe 6. By reducing the cross-sectional area, as will be described later, the refrigerant spins and accelerates in the spiral tubule 8, and the pressure decreases, so that the cooling effect is enhanced.
- the inner diameter of the thin tube is 2.5 mm
- the number of windings is 19 turns
- the diameter of the helix is 15 mm
- the length of the thin tube is 0.72 m. Configured.
- the branch pipe 7 branches the refrigerant coming out of one spiral pipe 6 into two spiral pipes 8.
- the length L2 of the main part (thick part) of the branch pipe 7 is 10 to 50 mm, and the inner diameter D2 is approximately 20 to 20 mm.
- the both ends connected to the spiral tube 6 and the spiral capillary 8 are formed in a cylindrical shape having a dimension that allows the spiral tube 6 and the spiral capillary 8 to be inserted.
- the connection side of the spiral capillary 8 of the branch pipe 7 has two connection holes. Is equal to the number of tubules constituting the spiral tubule 8.
- the inner diameter D2 is preferably set larger than the inner diameter of either the spiral tube 6 or the spiral capillary 8.
- the refrigerant When the substantially liquid refrigerant enters the spiral tubule 8, the refrigerant is sucked by the suction action of the compressor 1 or the like. Accelerated (referred to as the acceleration phenomenon of refrigerant), the liquefied refrigerant is cooled with decompression and enthalpy reduction. At the outlet of the spiral tubule 8, the pressure is reduced and cooled to become a low-temperature liquid, and the pressure is reduced to a low-pressure (less than 0.4 MPa) liquid (point k to point 1 in FIG. 2).
- the refrigerant in the spiral tube 8 changes in a state along the saturated liquid line L.
- the main cause of the temperature decrease in the spiral tube 8 is also the temperature decrease in the spiral tube 6.
- the entraumi of the refrigerant which is thermal energy, is converted into velocity energy, the enthalpy is reduced, and the phenomenon of a decrease in static temperature has occurred.
- the spiral tube 8 also constitutes an energy conversion device that converts the enthalpy of the refrigerant into velocity energy.
- the flow rate of the refrigerant in the helical tube 8 is preferably at least twice the flow rate in the mini heat exchanger 3 and higher than the flow rate in the helical tube 6.
- the spiral tubule 8 is used, but the configuration is not limited to a spiral shape and may be a meandering tube or a straight tube as long as the liquid refrigerant can be cooled with reduced pressure and enthalpy reduction. In this case, it is desirable that appropriate throttle means be provided at the inlet of the meandering pipe or straight pipe, or at a plurality of locations in the middle of the pipe. In either case, in this configuration, the liquid refrigerant is cooled by means other than heat dissipation, that is, by conversion of enthalpy into velocity energy.
- the refrigerant that has become a low-temperature liquid by the helical thin tube 8 passes through the collecting pipe 9 and the refrigerant pipe 10 and is sent to the evaporator 11.
- the refrigerant evaporates due to the endothermic heat of isobaric and isothermal expansion (point 1 to point h in FIG. 2), thereby completing the cycle in FIG.
- the condensing heat conversion device 30 is composed of an isobaric cooling unit (mini heat exchange device 3), a pressure reducing liquefaction unit (spiral tube 6), and a vacuum cooling unit (spiral tubule 8).
- the pressure reducing liquid portion may be formed by connecting a plurality of helical tubes in series.
- points j to k in FIG. 2 have a plurality of bending points. It becomes a cycle line.
- the vacuum cooling section may also be configured by connecting a plurality of helical tubes in series. In this case, the points k to 1 in FIG. become.
- the collecting pipe 9 accumulates the refrigerant from the two helical capillaries 8 in one refrigerant pipe 10.
- the length (L3) of the main part (thick part) of the collecting pipe 9 is 10 to 50 mm, and the inner diameter D3 force S8 to 20 mm is almost cylindrical.
- Both ends connected to the helical thin tube 8 and the refrigerant pipe 10 are formed in a cylindrical shape having a dimension that can be connected by inserting the helical thin tube 8 and the refrigerant pipe 10 respectively.
- the connection side of the spiral capillary 8 of the collecting tube 9 has two connection holes. Is equal to the number of tubules constituting the spiral tubule 8.
- the inner diameter D3 is preferably set larger than the inner diameter of either the spiral capillary 8 or the refrigerant pipe 10.
- the material of the large and short pipes 5, the helical pipe 6, the branch pipe 7, the helical thin pipe 8 and the collecting pipe 9 is a metal having a high thermal conductivity, such as copper.
- non-fluorocarbon refrigerants such as isobutane (CH (CH)
- the collecting pipe 9, the branch pipe 7, and the large and short pipes 5 each have an inner diameter larger than that of the refrigerant pipe.
- the refrigerant is sucked by the compressor 1 and receives an action similar to a pulsation phenomenon every time it passes through these pipes.
- Each tube draws the upstream refrigerant downstream, which accelerates the refrigerant.
- the branch pipe 7 draws the refrigerant in the helical tube 6 downstream, and the collecting pipe 9 draws the refrigerant in the helical thin tube 8 downstream, receives the drawing action, and sprinkles the refrigerant. Rotation is given.
- the helical thin tube 8 can accelerate the refrigerant liquid flowing through the inside of the helical thin tube 8 from the branch tube 7, and can perform a pressure reducing function.
- the refrigerant becomes a low-temperature and low-pressure refrigerant liquid from the outlet of the spiral thin tube 8, takes heat away from the evaporator 11, becomes a low-pressure gas-liquid mixed refrigerant (or may be completely vaporized), and passes through the suction pipe 12 to low-pressure gas-liquid. It can return to the compressor as a refrigerant and take the heat of the stator of the compressor.
- the refrigerant is circulated at high speed using a thin tube, so that the amount of refrigerant is less than that of the conventional apparatus of the same scale, and therefore the receiver tank 14 shown in Fig. 5 is not necessary.
- chlorofluorocarbons which are generally used as refrigerants, do not destroy the ozone layer, they are substances that cause global warming, and the ability to reduce their use is effective in protecting the global environment. Moreover, the power of the compressor can be reduced, which is preferable from the viewpoint of energy saving.
- the expansion valve 15 is also unnecessary.
- the helical tube 6 and the helical tube 8 are depressurized to efficiently convert the high-temperature / high-pressure refrigerant gas into the low-temperature refrigerant liquid. It is important for design whether to use it.
- the large and short pipes 5, the helical pipe 6, the branch pipe 7, the helical thin pipe 8, the collecting pipe 9, and the refrigerant pipes 2, 4, 10, and 12 which are important component members in the present invention are used.
- Each condition of the metal material, tube length and diameter, pitch and winding direction is set by measuring the temperature, pressure, etc. of the refrigerant in each part of the refrigerant cycle through repeated tests under the assumed operating conditions. .
- the dimensions of each part in FIG. 1 are as follows.
- Refrigerant pipes 2 and 4 have an inner diameter of 7.7 mm (cross-sectional area of 46.5 mm 2 ), large and short pipes 5 have a thick portion of 30 mm in length and an inner diameter of 10.7 mm (cross-sectional area of 89.9 mm 2 ), spiral pipe 6 is an inner diameter of 5 mm (cross-sectional area is 19.6 mm 2 ), a 2.3 m long thin tube wound in a spiral of 30 mm diameter, and the length of the thick part of branch tube 7 is 30 mm, the inner diameter is 13. 8 mm (cross-sectional area 149. 5 mm 2) is the inner diameter of the two capillary constituting the spiral narrow tube 8 is the cross-sectional area of the 2.
- the cross-sectional areas are gradually reduced in the order of the reduced pressure liquefaction section (helical tube 6) and the reduced pressure cooling section (spiral capillary 8).
- the cross-sectional area of the reduced pressure liquefying section (spiral tube 6) is preferably set to 40 to 50%
- the cross-sectional area of the reduced pressure cooling section (spiral tube 8) is preferably set to 20 to 30%.
- the material of the large and short pipes 5, the helical pipe 6, the branch pipe 7, the helical thin pipe 8 and the collecting pipe 9 are copper.
- the temperatures and pressures (L) to (P) of the conventional refrigeration cycle shown in FIG. 4 are as follows.
- Freon R134a was used as the refrigerant.
- the helical tube 6 and the helical thin tube 8 are decompressed by the suction of the compressor 1. Therefore, when the refrigeration system is overloaded, the compressor 1 is overloaded. If the temperature sensor provided in the compressor 1 or the temperature sensor that measures the temperature of the refrigerant gas discharged from the compressor 1 exceeds a predetermined temperature, the controller (not shown) indicates that the load is overloaded. As a result, the mini fan 3-1 is activated and the refrigerant liquefaction capacity of the mini heat exchanger 3 is enhanced.
- the heat conversion apparatus for condensation according to the present invention or the refrigeration system using the same can be applied to any cooling apparatus. It can be applied to household and commercial refrigerators, cold air units that do not require outdoor units, spot coolers with low exhaust heat, cold tables that do not require coolers, instantaneous cooling devices, and chlorofluorocarbon liquid regenerators.
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Abstract
Description
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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ES06810515T ES2811749T3 (es) | 2005-09-26 | 2006-09-25 | Sistema de refrigeración |
EP06810515.4A EP1930669B1 (en) | 2005-09-26 | 2006-09-25 | Refrigeration system |
US12/088,032 US8746007B2 (en) | 2005-09-26 | 2006-09-25 | Heat converter for condensation and refrigeration system using the same |
KR1020087007126A KR101319198B1 (ko) | 2005-09-26 | 2006-09-25 | 응축용 열 변환 장치 및 그것을 이용한 냉동 시스템 |
JP2007536583A JP4411349B2 (ja) | 2005-09-26 | 2006-09-25 | 凝縮用熱変換装置及びそれを用いた冷凍システム |
CN2006800352998A CN101273239B (zh) | 2005-09-26 | 2006-09-25 | 冷凝用热转换装置和采用该热转换装置的制冷系统 |
Applications Claiming Priority (2)
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JP2005-278949 | 2005-09-26 | ||
JP2005278949 | 2005-09-26 |
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WO2007034939A1 true WO2007034939A1 (ja) | 2007-03-29 |
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PCT/JP2006/318947 WO2007034939A1 (ja) | 2005-09-26 | 2006-09-25 | 凝縮用熱変換装置及びそれを用いた冷凍システム |
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US (1) | US8746007B2 (ja) |
EP (1) | EP1930669B1 (ja) |
JP (2) | JP4411349B2 (ja) |
KR (1) | KR101319198B1 (ja) |
CN (1) | CN101273239B (ja) |
ES (1) | ES2811749T3 (ja) |
WO (1) | WO2007034939A1 (ja) |
Cited By (6)
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WO2010082483A1 (ja) * | 2009-01-13 | 2010-07-22 | Hara Takao | 速度‐熱変換器及びそれを用いた暖房システム、冷暖房システム |
JP2011017513A (ja) * | 2009-07-10 | 2011-01-27 | Etl:Kk | 冷凍システム |
WO2011099052A1 (ja) * | 2010-02-09 | 2011-08-18 | 株式会社E・T・L | 冷凍システム |
JP2016003774A (ja) * | 2014-06-13 | 2016-01-12 | リンナイ株式会社 | 熱交換器およびヒートポンプ加熱装置 |
CN112856588A (zh) * | 2021-01-22 | 2021-05-28 | 青岛海尔空调器有限总公司 | 空调室内机和空调器 |
US11371757B2 (en) | 2018-03-13 | 2022-06-28 | E.T.L Corporation | Heating and cooling system |
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CN106705504A (zh) * | 2017-01-04 | 2017-05-24 | 合肥华凌股份有限公司 | 冷凝器及制冷设备 |
JP6406485B1 (ja) * | 2018-02-09 | 2018-10-17 | 株式会社E・T・L | 冷暖房システム |
JP6357598B1 (ja) * | 2018-02-13 | 2018-07-11 | 合同会社原隆雄研究所 | 冷暖房システム |
JPWO2021117254A1 (ja) * | 2019-12-09 | 2021-12-09 | 株式会社E・T・L | スポットクーラー装置 |
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Also Published As
Publication number | Publication date |
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KR20080068643A (ko) | 2008-07-23 |
JP4411349B2 (ja) | 2010-02-10 |
ES2811749T3 (es) | 2021-03-15 |
CN101273239B (zh) | 2010-06-16 |
KR101319198B1 (ko) | 2013-10-16 |
EP1930669A4 (en) | 2013-09-18 |
JP4832563B2 (ja) | 2011-12-07 |
US20090241591A1 (en) | 2009-10-01 |
US8746007B2 (en) | 2014-06-10 |
JPWO2007034939A1 (ja) | 2009-04-02 |
JP2010043856A (ja) | 2010-02-25 |
CN101273239A (zh) | 2008-09-24 |
EP1930669A1 (en) | 2008-06-11 |
EP1930669B1 (en) | 2020-07-08 |
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