WO2001038806A1 - Dispositif de refroidissement de fluide - Google Patents

Dispositif de refroidissement de fluide Download PDF

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Publication number
WO2001038806A1
WO2001038806A1 PCT/JP1999/006490 JP9906490W WO0138806A1 WO 2001038806 A1 WO2001038806 A1 WO 2001038806A1 JP 9906490 W JP9906490 W JP 9906490W WO 0138806 A1 WO0138806 A1 WO 0138806A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
fluid
main pipe
cooling
cooling device
Prior art date
Application number
PCT/JP1999/006490
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Ichigaya
Original Assignee
Seft Development Laboratory Co.,Ltd.
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 Seft Development Laboratory Co.,Ltd. filed Critical Seft Development Laboratory Co.,Ltd.
Priority to AU11849/00A priority Critical patent/AU1184900A/en
Priority to PCT/JP1999/006490 priority patent/WO2001038806A1/fr
Publication of WO2001038806A1 publication Critical patent/WO2001038806A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
    • F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
    • 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
    • F25D7/00—Devices using evaporation effects without recovery of the vapour

Definitions

  • the present invention relates to a fluid cooling device that efficiently cools a high-temperature fluid.
  • FIG. 3 is a diagram schematically showing a conventional fluid cooling device. This device cools, for example, beverage products and drinking water that have been pasteurized at a temperature of about 80 ° C to about 30 ° C near room temperature in a short time.
  • the fluid to be cooled flows through the main pipe 30 from right to left.
  • a thin pipe 31 through which cooling water flows is spirally wound.
  • the cooling water flows around the main pipe 30 to cool beverage products and the like to be cooled, returns to the cooling tower 32, is cooled, and flows around the main pipe 30 again through the narrow pipe 31. That is, the cooling water circulates in the thin tube 31 with the cooling tower 32 interposed therebetween.
  • the cooling tower 32 is a device that cools the cooling water by contacting the cooling water with the air to vaporize the water, and utilizing the vaporized water to take heat of vaporization from the surroundings. In order to enhance the cooling effect of the cooling water, the cooling tower blows air with a blower and brings a large amount of air into contact with the cooling water to promote water vaporization.
  • cooling water is cooled by the cooling tower 32, and the cooling water is used to cool a beverage product or the like to be cooled. That is, the conventional apparatus requires cooling water as a refrigerant, and indirectly cools a beverage product or the like, which is the original cooling target, through the cooling water. If the cooling action is indirect as described above, the cooling water cooled by the cooling tower 32 is slightly warmed while passing through the thin tube 31 and the cooling effect is inevitably reduced.
  • One of the issues to be solved is that a large amount of cooling water is required. Disclosure of the invention
  • the present invention has been made under such a technical background, and an object of the present invention is to provide a fluid cooling device that can cool a fluid with higher efficiency without requiring a large amount of cooling water.
  • a fluid cooling device is provided with a main pipe through which a fluid to be cooled flows, and provided around the outside of the main pipe so as to be in thermal contact with the main pipe and supplied.
  • a water holding member for holding the liquid held therein, and an air flow passage around the water holding member for flowing air so as to come into contact with the water held by the water holding member.
  • the liquid held in the main pipe is cooled by utilizing an action of removing heat of vaporization from the surroundings when the liquid is vaporized.
  • a second invention is characterized in that, in the fluid cooling device according to the first invention, a direction in which the fluid flows in the main pipe and a direction in which the air flows are substantially parallel and opposite.
  • a part of the liquid held by the water holding member is recovered without being vaporized.
  • a fourth invention is the fluid cooling device according to the first, second or third invention, wherein the liquid is water.
  • FIG. 1 is a diagram showing a fluid cooling device 5 according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a state in which the center portion of the fluid cooling device shown in FIG. 1 is traversed
  • FIG. 3 is a diagram showing an example of a conventional fluid cooling device.
  • FIG. 1 is a diagram showing a fluid cooling device 5 according to one embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a state in which the fluid cooling device shown in FIG. Fluid cooling
  • the device 5 is to cool a fluid such as a beverage product or drinking water that has been heat-sterilized.
  • the main part of the fluid cooling device 5 is composed of a main pipe 10, a hydrogen storage material 11, and an outer pipe 12.
  • the water retaining material 11 is a “water retaining member” described in the claims.
  • the fluid to be cooled flows inside the main pipe 10 from the bottom to the top as indicated by the arrow.
  • a water retention material 11 is attached around a portion inside the outer pipe 12 so as to be in thermal contact with the surface of the main pipe 10.
  • a tank 20 in which water is stored is provided at the top of the outer pipe 12, from which water is supplied to the water retention material 11.
  • the water retaining material 11 retains a considerable amount of water when supplied, and diffuses water downward by capillary action and gravity of the fibers that make up the material.
  • a space is provided between the water retention material 11 and the outer pipe 12. This space becomes the “air flow passage” described in the scope of the patent claim.
  • An air inlet 15 is provided in a portion of the outer pipe 12 slightly above the main pipe 10. When the fan 16 rotates, air is sent from the air intake 15 into the outer tube 12. This air flows downward in the space between the water retention material 11 and the outer pipe 12, and is discharged to the outside from an exhaust port 17 provided at a portion of the outer pipe 12 slightly below the main pipe 10. Is discharged.
  • the cross section of the central part of the fluid cooling device 5 was made flat as shown in FIG. 2 because the surface area inside the main pipe was made larger with respect to the amount of fluid and the fluid This is to increase the degree of contact with the air and enhance the cooling effect.
  • the residue mainly composed of calcium carbonate contained in the tap water becomes the water holding material. 1 Precipitates on 1. If a certain amount of the residue is deposited, the water holding material 11 hardly diffuses water and hardly evaporates the water, so that the cooling effect is reduced. Therefore, in the present embodiment, the amount of water supplied from the tank 20 is adjusted so that all of the water does not evaporate and some water reaches the lower end of the main pipe 10. This water drops into a water reservoir 21 provided at the bottom of the outer tube 12 and is stored there. Since this water has a high concentration of impurities such as calcium carbonate, it may be discarded at an appropriate timing after the water has accumulated to some extent.
  • the following effects can be obtained by reversing the direction of the cooling target fluid flowing in the main pipe 10 and the air flowing outside thereof.
  • the initial state of the air entering the outer tube 12 from the air inlet 15 is, for example, a temperature of 30 "and a humidity of 60%
  • this air will retain water around the main tube 10.
  • the temperature gradually rises due to the contact with the material 11 1.
  • the vaporization of water from the water retention material 11 increases the absolute amount of water contained in the air, but the temperature of the air rises
  • the initial temperature of the fluid flowing in the main pipe 10 is 120, and the temperature of the air flowing in the outer pipe 12 is 9 near the exhaust port 17. If the air flow rate is adjusted so that it is about 0, the humidity of the air gradually decreases, and becomes about 50% near the exhaust port 17.
  • the air discharged from the exhaust port 17 is heated by a high-temperature cooling target. Therefore, this heat can be used as a heat source for preheating when heating the fluid to be cooled by this device. In this way, the heat can be used without waste, which is efficient.
  • the present invention is not limited to the above embodiment.
  • the cross section of the central portion of the fluid cooling device 5 is made flat as shown in FIG. 2, but in addition to such a flat shape, for example, the cross section is made into a star shape.
  • increasing the surface area of the main pipe in this manner is not a point limiting the present invention, and it goes without saying that a simple circular or square cross section is also included in the technical scope of the present invention.
  • a minute member for stirring the fluid is provided by the main pipe 10. May be provided on the inner wall of the device.
  • a propeller-like stirring blade that rotates and stirs the fluid may be provided in the main pipe 10.
  • the cooling target is a liquid such as a beverage product or drinking water.
  • the cooling target of the fluid cooling device according to the present invention is It can be.
  • water is used as the liquid to be vaporized.
  • the present invention includes a case where a liquid other than water is used as the liquid to be vaporized. Since water is harmless to humans and is a liquid that can be used at low cost, it is suitable as a liquid to be vaporized.
  • liquids other than water can be used, for example, if something is needed to absorb more heat of vaporization.
  • the present invention provides a method for cooling a fluid flowing in a main pipe by utilizing an action of removing heat of vaporization from the surroundings when a liquid (for example, “water”) held in a water holding member evaporates.
  • Circulating coolant such as cooling water, It is possible to cool the fluid to be cooled more efficiently than a method of cooling by simple heat exchange during the period.
  • the fluid to be cooled can be rationally cooled. Furthermore, by recovering a part of the liquid held in the water holding member without vaporizing, even when tap water is used as the liquid, it is possible to prevent the residue from being deposited on the water holding member, It is possible to effectively prevent the residue from hindering the vaporization of water and reducing the cooling effect.
  • the present invention can be used in various industrial fields for cooling fluids (including liquids and gases).

Landscapes

  • 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'invention concerne un dispositif de refroidissement de fluide qui ne nécessite pas un grand volume d'eau de refroidissement et qui peut refroidir un fluide beaucoup plus efficacement. Le fluide à refroidir s'écoule de bas en haut à travers un conduit principal (10), comme l'indiquent les flèches. L'air s'écoule vers le bas à travers un espace prédéterminé entre un matériau (11) de rétention d'eau et un conduit extérieur (12). L'eau s'égouttant de façon constante d'un réservoir (20), fournie audit matériau (11), peut se diffuser rapidement, le matériau (11) conservant ainsi son humidité. L'eau entre en contact étroit avec le flux d'air et s'évapore avec force de la surface dudit matériau (11). Etant donné qu'une eau qui s'évapore absorbe une chaleur de vaporisation d'environ 580 calories/1 cc provenant des environs, l'eau s'évaporant avec force du matériau (11) réduit rapidement la température du conduit principal (10) et refroidit le milieu à refroidir qui s'y écoule.
PCT/JP1999/006490 1999-11-19 1999-11-19 Dispositif de refroidissement de fluide WO2001038806A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU11849/00A AU1184900A (en) 1999-11-19 1999-11-19 Fluid cooling device
PCT/JP1999/006490 WO2001038806A1 (fr) 1999-11-19 1999-11-19 Dispositif de refroidissement de fluide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1999/006490 WO2001038806A1 (fr) 1999-11-19 1999-11-19 Dispositif de refroidissement de fluide

Publications (1)

Publication Number Publication Date
WO2001038806A1 true WO2001038806A1 (fr) 2001-05-31

Family

ID=14237353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/006490 WO2001038806A1 (fr) 1999-11-19 1999-11-19 Dispositif de refroidissement de fluide

Country Status (2)

Country Link
AU (1) AU1184900A (fr)
WO (1) WO2001038806A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216041A (en) * 1975-07-28 1977-02-07 Mutsuto Iwakura Reducing process of liquid temperature and its apparatus
JPH0281363U (fr) * 1988-12-09 1990-06-22
JPH06241636A (ja) * 1993-02-15 1994-09-02 Tlv Co Ltd 気化冷却装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216041A (en) * 1975-07-28 1977-02-07 Mutsuto Iwakura Reducing process of liquid temperature and its apparatus
JPH0281363U (fr) * 1988-12-09 1990-06-22
JPH06241636A (ja) * 1993-02-15 1994-09-02 Tlv Co Ltd 気化冷却装置

Also Published As

Publication number Publication date
AU1184900A (en) 2001-06-04

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