JP2012193919A - Velocity-heat converter and heating/cooling system utilizing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling system or the like having a new helical pipe type velocity-heat converter using a clean multi-component refrigerant or the like that causes no environmental pollution.SOLUTION: The cooling system employs a multi-component heat medium produced by combining and mixing two or more kinds of heat mediums having different properties. A plurality of helical pipes 31, 32, and 33 dedicated for velocity-heat conversion for each of heat medium components having different properties are provided in multiple stages. Optimum liquefaction/cooling conditions are established for each of the heat medium components having different properties inside each of the helical pipes 31, 32 and 33. The heat medium components are almost completely liquefied and decompressed/cooled.

Description

  The present invention relates to a speed-heat converter and a heating or cooling system using the same.

  An air conditioning system such as an air conditioner is composed of almost the same components based on the same principle regardless of the size and use of the system.

  FIG. 2 is a schematic configuration diagram of a general home air conditioner, and FIG. 3 is a diagram illustrating the operation thereof. As shown in FIG. 2, in the air conditioner 200, the condenser 13, the receiver tank 14, the expansion valve 15, and the heat exchanger 3 are connected to the compressor 1 through a medium pipe, and an amount of heat medium corresponding to the capacity is enclosed. Configured.

  In the above configuration, in the heating cycle (FIG. 3, arrow 21 (a)), the air heat medium is first compressed by the compressor 1 to be sent to the heat exchanger 3 as a high temperature / high pressure air heat medium. In the heat exchanger 3, the heat medium is a gas in the vicinity of the inlet of the heat exchanger 3 as illustrated in the phase change explanatory diagram of the heat medium shown below the heat exchanger 3 in FIG. As the flow proceeds, the liquid is liquefied and the liquid increases, and the liquid is substantially liquefied (90% liquid, 10% gas) near the outlet of the heat exchanger 3. That is, in the heat exchanger 3, the high-temperature and high-pressure air heat medium is cooled by releasing heat to the environment, becomes a medium-temperature / liquid heat medium, and is introduced into the expansion valve 15. When the expansion valve 15 is opened, the medium temperature / liquid heat medium is vaporized and enters the condenser 13 which is pulled by the compressor 1, completely vaporized, becomes a low temperature gas heat medium, enters the compressor 1, and is compressed again to become a high temperature.・ It circulates as a high-pressure air heat medium.

  On the other hand, in the cooling cycle (arrow 21 (b)), the air heating medium is compressed by the compressor 1 to become a high temperature / high pressure air heating medium and sent to the condenser 13. In the condenser 13, the high-temperature / high-pressure air heat transfer medium releases heat and is cooled to become a medium-temperature / liquid heat transfer medium (approximately 90% liquid / 10% gas state), which is stored in the receiver tank 14 once and is expanded. To be introduced. When the expansion valve 15 is opened, the medium-temperature liquid heat medium enters the heat exchanger 3 that is sucked and decompressed by the compressor 1, takes heat from the target environment, becomes a low-temperature air heat medium, enters the compressor 1, and is compressed again. It circulates as a high-temperature, high-pressure air heat medium. In the cooling cycle, the heat medium absorbs heat from the surrounding atmosphere by the heat exchanger 3, and the heat obtained here is radiated and circulated by the capacitor 13.

  On the other hand, the present inventor has previously developed a cooling system using a speed-heat converter composed of a helical tube (see, for example, Patent Documents 1 and 2). According to such a cooling system, the liquefaction rate in the condenser is kept at about 50% (capacitor capacity is reduced), the liquefaction / cooling conditions of the heat medium are formed in the spiral tube, and the heat medium is almost completely liquefied. Since the pressure is reduced and cooled, an expansion valve, a condenser, and a receiver tank as in the conventional cooling system are not required, and a cooling system having a small condenser capacity can be constructed.

International Publication No. 2007/318947 JP 2010-281558 A

  On the other hand, chlorofluorocarbons such as CFC refrigerant (R12) and HCFC (R22), which have been used as a conventional heat medium, are restricted in use because they destroy the ozone layer and cause global warming. Although new refrigerants using a single component or mixed components such as carbon have come to be used, there has been a problem that sufficient cooling efficiency cannot be obtained even if introduced into the conventional system as it is.

  The present invention has been made in view of the above-mentioned problems of the prior art, and the object of the present invention is to provide a novel spiral tube type velocity-heat that introduces a clean multi-component refrigerant or the like that has no environmental pollution problem. It is in providing the cooling system etc. which have a converter.

  The above object of the present invention is achieved by the following means.

  (1) That is, the present invention is a speed-heat converter used in a heating or cooling system into which a multi-component heat medium in which a plurality of types of heat mediums having different properties are combined is introduced. A speed-heat converter characterized in that a plurality of spiral tubes for performing speed-heat conversion for each heat medium component of a component heat medium are provided in multiple stages.

  (2) The present invention is also the speed-heat converter according to (1), wherein the spiral tubes have different tube diameters.

  (3) The present invention is also the speed-heat converter according to (1) or (2), wherein the spiral tubes have different numbers of turns.

  (4) The present invention is also characterized in that the multi-component heat medium includes a hydrocarbon gas as the first heat medium component and includes a rare gas or an inert gas as the second heat medium component ( It is a speed-heat converter given in any 1 paragraph of 1) thru / or (3).

  (5) In the present invention, spiral tubes having different tube diameters are connected in series in three stages, and the inner diameter of the second spiral tube is 40 to 70% with respect to the inner diameter of the first spiral tube. 3. The speed-heat converter according to any one of (1) to (4), wherein the inner diameter of the third helical tube is 30 to 70 with respect to the inner diameter of the second helical tube.

  (6) In the present invention, the number of turns of the first spiral tube is 20 to 32, the number of turns of the second spiral tube is 14 to 30, and the number of turns of the third spiral tube is 10 to 28. The speed-heat converter according to (5).

  (7) Furthermore, the present invention relates to a multi-component heat medium in which a plurality of types of heat mediums having different properties are combined and a spiral tube that performs speed-heat conversion for each heat medium component of the multi-component heat medium. A heating-cooling system comprising: a plurality of speed-heat converters provided in multiple stages.

  According to the cooling / heating system of the present invention, a multi-component heat medium in which a plurality of types of heat mediums having different properties are combined is used, and the speed-heat conversion is exclusively performed for each heat medium component having different characteristics. Since multiple tubes are provided in multiple stages, optimal liquefaction / cooling conditions are formed for each heat transfer medium component having different properties in each spiral tube, and each heat transfer medium component is liquefied almost completely, and reduced in pressure and cooled. be able to. Therefore, it is possible to provide a cooling and heating system that is compact and has no problem of environmental pollution and has a very high cooling efficiency by combining a plurality of heat mediums that have not been able to obtain sufficient cooling efficiency or the like with conventional refrigeration systems. .

1 is a schematic diagram showing an overall configuration of a cooling / heating system 100 according to an embodiment of the present invention. It is the schematic which shows the whole structure of the general household air conditioner 200. FIG. It is a conceptual diagram for demonstrating operation | movement of the air conditioner 200. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  In the cooling / heating system of the present invention, a multi-component heat medium in which plural kinds of heat mediums having different properties are combined and used is used as the heat medium. As the heat medium to be used, the first heat medium component is a hydrocarbon gas such as methane, ethane, or butane. The second heat medium component is a rare gas such as helium, neon, argon, krypton, or xenon, nitrogen. Inert gas such as carbon dioxide, and the like, and one or more kinds of heating media are selected from the first heating medium component and the second heating medium component, and are combined in combination. In addition to the first heat medium component and the second heat medium component, another heat medium component having different properties from the first heat medium component and the second heat medium component may be combined. Absent.

  Next, the configuration of the cooling / heating system of the present invention will be described. FIG. 1 is a schematic diagram showing an overall configuration of a cooling / heating system 100 according to an embodiment of the present invention. As shown in FIG. 1, the cooling / heating system 100 includes a compressor 1, a condenser 11, a speed-heat converter 30, and an evaporator 3, which are heat transfer tubes. 21, 22, 23 and 24, respectively.

  The condenser 11 is 30% to 70% smaller than that of a conventional circulation type cooling system having a compressor / condenser / expansion valve / evaporator, and heat exchange in the compressor 11 is not required. It is configured to be sufficient.

  The speed-heat converter 30 is configured by connecting three types of spiral tubes 31, 32, and 33 having different tube diameters and winding numbers in series. Thus, in the cooling / heating system according to the present invention, a plurality of spiral tubes exclusively for speed-heat conversion are provided in multiple stages for each heat medium component having different properties of the introduced multi-component heat medium. Optimum liquefaction and cooling conditions are formed for each heat transfer medium component with different properties in each helical tube (heat medium molecules rotate on the inner wall of the helical tube at a high speed (spin rotation / elliptical rotation) while heat and kinetic energy are reduced). It is possible to move (including heat release) to promote liquefaction / decompression / cooling of the heat medium), and to substantially completely liquefy the heat medium components, and to depressurize / cool. Accordingly, even when a plurality of heat media that cannot obtain sufficient cooling efficiency or the like in a conventional refrigeration system or the like are used in combination, extremely high cooling efficiency or the like can be achieved.

  In the cooling / heating system of the present invention, the number of turns and the pipe diameter of the multi-stage helical tube constituting the speed-heat converter can be appropriately designed according to the properties of each heating medium component of the introduced multi-component heating medium. However, as a specific example, when the speed-heat converter is configured by connecting three types of spiral tubes, for example, the number of turns of the first spiral tube is 20 to 32, preferably 22 to 26. The number of turns of the second spiral tube is 14 to 30, preferably 16 to 20, and the number of turns of the third spiral tube is 10 to 28, preferably 12 to 20. If the number of turns of each of the first to third spiral tubes is less than the above range, sufficient spin cannot be obtained. If the number of turns exceeds the above range, the internal resistance increases, and none of the heat medium molecules can rotate at high speed. It is not preferable because the movement is not performed smoothly and sufficient cooling / heating efficiency cannot be obtained.

  The ratio of the inner diameters of the first to third spiral tubes is such that the inner diameter of the second spiral tube is 40 to 70%, preferably 40 to 60% with respect to the inner diameter of the first spiral tube. The inner diameter of the spiral tube is 30 to 70, preferably 30 to 50 with respect to the inner diameter of the second spiral tube. If the ratio of the inner diameters of the first to third spiral tubes is less than the above range, sufficient spin cannot be obtained, and if the ratio exceeds the above range, the internal resistance increases, and none of the heat medium molecules can rotate at high speed. This is not preferable because energy transfer is not performed smoothly and sufficient cooling / heating efficiency cannot be obtained.

  The speed-heat converter 30 is composed of speed-heat converter units in which spiral tubes 31, 32, and 33 are connected in series, and connected in parallel in two rows. The speed-heat converter unit may be configured in a single row or in three or more rows.

  In the cooling / heating system 100, an expansion valve (capillary tube) (not shown) may be provided between the speed-heat converter 30 and the evaporator 3, for example, 10 to 20% of the heat medium is expanded by the expansion valve. You may comprise so that it may reduce pressure.

  In the cooling / heating system 100, in the cooling cycle, the gas heat medium compressed to high temperature and high pressure by the compressor 1 is cooled by the condenser 11 to become a gas-liquid mixed heat medium, and further heated by the speed-heat converter 30. Each medium component is completely liquefied and reduced in pressure and cooled to become a liquid heat medium. The liquid heat medium is expanded and vaporized by the evaporator 3 and returned to the compressor 1 again. The cooling / heating system 100 operates as a heating cycle by switching the input and output of the compressor 1 by the switch 16.

  Next, although the Example of the cooling / heating system of this invention is described, it cannot be overemphasized that the cooling / heating system of this invention is not limited to the Example which concerns.

  Using a system having the same configuration as the cooling / heating system 100 of FIG. 1, a three-component heat medium containing 4.85 vol% methane, 59.95 vol% argon, and 35.2 vol% nitrogen is introduced as a heat medium. The cooling system was configured. At this time, the numbers of turns of the spiral tubes 31, 32, and 33 were 23, 19, and 17, respectively, and the inner diameter ratio was 100: 60: 30. When this cooling system was operated, an internal temperature of -22 ° C was achieved.

  As described above, according to the cooling / heating system of the present invention, it is possible to construct a cooling / heating system that is small in size and has no problem of environmental pollution and has extremely high cooling efficiency.

DESCRIPTION OF SYMBOLS 1 Compressor 11 Condenser 16 Switcher 21, 22, 23, 24 Heat medium pipe 3 Evaporator 30 Speed-heat converter 31, 32, 33 Spiral pipe

Claims (7)

A speed-heat converter used in a heating or cooling system in which a multi-component heat medium in which a plurality of types of heat mediums having different properties are combined and mixed is introduced,
A speed-heat converter characterized in that a plurality of spiral tubes for performing speed-heat conversion for each heat medium component of the multi-component heat medium are provided in multiple stages.   The speed-heat converter according to claim 1, wherein the spiral tubes have different tube diameters.   The speed-heat converter according to claim 1 or 2, wherein the spiral tubes have different numbers of turns.   4. The multi-component heat medium includes a hydrocarbon gas as a first heat medium component and a rare gas or an inert gas as a second heat medium component. The speed-heat converter as described in the paragraph.   The spiral tubes having different tube diameters are connected in series in three stages, the inner diameter of the second spiral tube is 40 to 70% of the inner diameter of the first spiral tube, and the inner diameter of the third spiral tube is the first The speed-heat converter according to any one of claims 1 to 4, wherein the speed-to-heat converter is 30 to 70 with respect to an inner diameter of the two helical tubes.   The number of turns of the first spiral tube is 20 to 32, the number of turns of the second spiral tube is 14 to 30, and the number of turns of the third spiral tube is 10 to 28. Speed-to-heat converter. A multi-component heat medium formulated by combining multiple types of heat mediums with different properties;
A speed-heat converter in which a plurality of spiral tubes responsible for speed-heat conversion for each heat medium component of the multi-component heat medium are provided in multiple stages,
A heating or cooling system comprising:

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