• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Temperature maintenance device in a thermal insulation container. Device that is located in a thermally sealed container, hermetically sealed, consisting of a deposit of solid walls within which a material is loaded in a two-phase state, said tank being firmly closed once loaded with the two-phase material; and the tank being separated from the payload by a space through which the interior air of the drawer circulates, said space being maintained by vertical grids provided with small legs perpendicular to the grid plane; and there also being an air circulation space between the payload packs and the walls of the container. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2552565A1
    申请号:ES201500496
    申请日:2015-07-03
    公开日:2015-11-30
    发明作者:Juan MARTÍNEZ-VAL PIERA
    申请人:Fundacion para el Fomento de la Innovacion Industrial；
    IPC主号:
    专利说明:

    TEMPERATURE MAINTENANCE DEVICE IN ATHERMAL INSULATION CONTAINER SECTOR OF THE TECHNIQUE
    The invention falls within the field of containers and boxes with thermal insulation, and particularly in those that use a substance of great heat capacity, to provide greater thermal inertia to the specific content of the container. BACKGROUND OF THE INVENTION
    The invention relates to the transport systems of pharmaceutical and food products, the latter being regulated by the international agreement for the transport of perishable goods, which in Spain is embodied in the "Consolidated text of the Agreement on international transport of perishable goods and on vehicles specials used in these transports (ATP) made in Geneva on September 1, 1970, updated to September 23, 2013 ", Official State Gazette of November 15, 2013, page 91311. In the field of pharmacy there are guides published by the World Health Organization, as it is "Qualification of
    shipping containers ". Technical supplement to WHO Technical Report Series, No. 961, 2011. Annex 9: Model guidance for the storage and transport of time and temperature-sensitive pharmaceutical products, January 2014.
    In the specific field of industrial property there is the classification area 865D88 / 16 in which no direct antecedents of the invention have been found, nor in A01J, A01F25 / 14 or B67. The F17 for gases was also consulted, due to possible involvement of vapors in the device. TECHNICAL PROBLEM TO BE SOLVED
    The problem to be solved is to find a mechanically simple configuration with a guarantee of rigidity, in which a thermal situation is established that efficiently exploits the heat sink, so that the load contained in the thermal insulation vessel is more adequately protected. . EXPLANATION OF THE INVENTION
    The invention is applied to a thermally sealed, insulated box, container or container in which the specificity of the invention is:
    locating in the central part of the interior of the container, in a vertical sense, a deposit of solid walls into which a material in the biphasic state is loaded, which can be selected between solid and liquid, and therefore involve the melting-solidification process; or between liquid and steam, and therefore involve the process of evaporation or condensation; the process of state change being characterized by the pressure and temperature existing in said central tank, said central tank being firmly closed once loaded with the biphasic material; said central reservoir being separated from the payload by a space through which the internal air of the drawer circulates, said space being maintained by vertical grilles provided with small legs perpendicular to the grid plane; and the payload packages being separated from the walls of the container, by means of a grid that confines said payload packages, leaving a perimeter space between the walls and the packages; circulating the interior air of the drawer through said perimeter space; and said central reservoir being and the payload packages being supported on a perforated or drilled solid base, and said base provided with small support legs that rest on the bottom of the interior of the container, and the location of some of the drills corresponding to free space remaining around the walls of the central tank, and the location of other holes in the base corresponding to the free space between the payload packages and the walls of the container or box; and leaving a free space between the inner face of the container lid and the upper faces of the payload packages, the interior air of the container being able to circulate through said free space, said space being maintained by a grid provided with small legs perpendicular to the plane of the grid.
    In a variant of the morphology of the device, the central tank is extended by its lower part in a closed plate that rests at the bottom of the interior of the drawer or container, the plate being able to have a circular shape, or quadrangular shape, or any other shape with fitted on the inside perimeter of the bottom of the drawer.
    In another variant of the morphology of the device, applicable to biphasic solid-liquid systems in the device, inside the central reservoir are located porous, perforated or grid vertical walls, within which the solid phase is initially confined, when loaded The device with its material.
    And in another variant of the morphology of the device, applicable to two-phase liquid-vapor systems in the device, the upper wall of the central tank is of deformable elastic material, and above said elastic wall a movable horizontal plate is located, guided by a solid vertical walls that are an extension of the walls of the central tank, said plate being trapped between said elastic wall at the bottom, and a spring at the top, this spring being attached from above to the top stop of the walls that guide the movement of the plate.
    Finally, the variant of the device that does not use the internal air of the drawer as a heating fluid is exposed, but uses a fluid contained in plastic bags or of deformable solid material, along which it moves by the same effect natural convection already explained, each bag having an enlarged part, or breastplate, which covers on its side surface a whole side of the walls of the drawer, plus an elongated band type part in contact with the cold focus, plus two connecting parts between bib and band, and vice versa, the first of the connections being at the top of the cargo packages, and the cold connection being, between band and bib, below the packages, there is also a snap-in flange between the end of the hot or higher connection and the beginning of the elongated descending band. EXPLANATION OF THE FIGURES
    Figure 1 corresponds to a straight cross-sectional elevation of the device within an isothermal drawer or container, when the two-phase system is solid-liquid.
    Figure 2 represents a plan view of the device inside an isothermal drawer or container.
    Figure 3, similar to 1, also corresponds to a two-phase solid-liquid system, which includes a closed bottom plate, resting on the bottom.
    Figure 4, similar to 1, is a straight cross-sectional elevation of the device within an isothermal drawer or container, when the two-phase system is liquid-vapor.
    Figure 5 is analogous to 4, including the closed horizontal plate resting on the bottom.
    Figure 6 is analogous to 5, with the inclusion of an elastic type closure at the top of the tank 3.
    Figure 7 shows the straight section of the variant in which a heating fluid is used that is channeled into plastic bags.
    Figure 8 is a vertical straight section of the device presented in Figure 7.
    Figure 9 shows the upper part of the device presented in the two previous figures.
    Figure 10 shows one of the bags used to contain the heating fluid, in the device of the three previous figures.
    In order to facilitate the understanding of the figures of the invention, and of their embodiments, the relevant elements thereof are listed below:
    one. Walls of the drawer or container where the device is installed
    2. Payload package whose temperature must be maintained
    3. Internal central tank in which a biphasic material content that acts as a heat sink is located. It is firmly closed once material is loaded, which can be of one use, or recyclable.
    Four. In the case of biphasic fusion-solidification systems, the outer part of the tank 3, in which part of the liquid phase is concentrated.
    5. Vertical space between payload packages 2 and the outer part of the tank 3, or its outer part 4. The number 5 is followed by "bU or
    "e" in some references to geometric parts that are oriented differently to parts 5.
    6. Vertical separation grid between the inner part of the tank 3, which is where the solid part is housed in the case of biphasic fusion-solidification systems, and the outer part 4.
    7. Container lid or drawer.
    8. Free space remaining between the cover 7 and the top of the payload packages, 2.
    9. Space that remains along the inside of the side walls of the drawer, between it and the payload packages (2).
    10. Grid or base with support legs and holes, resting on the bottom of the box.
    eleven. Main heat sink tank (3)
    12. Secondary deposits, perpendicular to 11, and of the same gender.
    13. Lower plate that forms a whole with part 4 of the tank 3 in two-phase solid-liquid systems, and that sits on the bottom of the drawer.
    14. Clearance between grid 10 and plate 13
    fifteen. Part of the tank 3 occupied by the steam when the two-phase system is liquid-vapor.
    16. Part of the tank 3 occupied by the liquid when the two-phase system is liquid-vapor.
    17. Lower plate that forms a whole tank 3 in two-phase liquid-vapor systems, and that sits on the bottom of the drawer, and is the first part that is filled with liquid.
    18. Pressure spring on the elastic wall of the tank 3.
    19. Intermediate plate between the elastic wall 20 of the tank 3, and the spring
    18.
    twenty. Elastic wall of the tank 3 (usable in the liquid-vapor balances to relax the pressure if the internal energy increases).
    twenty-one. Heat fluid bag band.
    22 Peto of said bag.
    2. 3. Top or hot connection, from breastplate to band.
    24. Bottom or cold connection, from band to bib.
    25. Flange or pressure nozzle, hook to close the circuit of each bag. The counterpart is denoted with 25b. PREFERRED EMBODIMENT OF THE INVENTION
    To materialize the invention it is necessary to select the biphasic material, be it solid-liquid; Be liquid-vapor. For the materialization of the first case, liquid ice-water is selected, whose latent heat of fusion is 334 kJlkg. Also important is the specific heat of water, which is 4.18 kJlkg · K and that of ice, which is practically half 2.09 kJlkg · K. At ordinary pressure of 1 atm, the equilibrium state is OOC (273.1 K). The slight subcooling of ice below OOC and the slight overheating of liquid water, above O ° C tend to compensate, and although the heat transfer process is slow (especially in the ice ) After a while, which depends on several factors, and especially on the surface to volume ratio of the ice pieces, there is essentially a mass of liquid water at 0 ° C, with an ice mass between which it permeates the water, said ice being at a slightly low temperature or. Water, due to its ability to move in convection mini-currents, is the agent that acts in the heat transfer with the rest of the system components, giving up heat, if they are colder, or cooling them, if they are hotter.
    A fundamental agent in this exchange is the air inside the box, which is in this arrangement the agent that receives the heat that enters, if we consider that there is a higher ambient temperature. The air would heat up the spaces (9) that lead to the walls of the drawer (1) would continue its way through the space (8) under the closed lid (7) and go (by natural convection, that is, principle from Archimedes) towards the cold spot, which is the central reservoir (3) around which it will go down, giving heat to the water inside the reservoir. Such heat would be used to melt a certain amount of ice, going into water. In that step there is no problem; but in the inverse (which would occur in the opposite situation, with ambient temperatures below OOC, since the anomalous behavior of water occurs, which increases in volume when transformed into ice, which requires some flexibility to the receptacle of the central tank which is not, however, a matter of the invention, nor is the elementary requirement that there be chemical compatibility between
    5 the material from which the tank and water are made).
    What is achieved with this device, in the situation of high outdoor temperature, which is the most conducive to the use of ice / water, is that the incoming heat does not have to pass through the payload that is inside the drawer until it reaches the sump of heat or cold focus, but the heat reaches the cold focus directly, to
    10 through the natural convection currents that are formed with the interior air of the drawer, by the layout geometry that is substantial to the device. In that way, the interior of the payload packages remains isothermal, practically at the temperature that was charged, which would typically be a few degrees Celsius above zero.
    The biphasic ice-water system can also be used with a conducted fluid, as specified by that variant of the invention, using for example ethylene glycol, which freezes at 13 ° C below zero; or a low melting eutectic, such as the aqueous solution of the ammonium chloride salt with 19.7% by mass, which is frozen 15.4 oC below zero.
    To materialize the invention with a phase change from liquid to vapor, butyl decafluoride, C4F10 or perfluoride derived from butane can be used, in which all H of the molecule is replaced by F. It is a non-toxic, non-flammable fluid. nor prohibited by any convention, of 238 grams per mole, and with thermodynamic properties very close to the ranges of interest in the
    25 transport of sensitive medicines. The following table shows the most significant data, referring to the two-phase system in equilibrium at a given temperature:
    T (OC) P (MPa)g / liter, vap.Kgllitro, liq.fJ. Internal E (I ~ v) J / g
    OR 0.1112.241.5887.5
    2 0.1213.21.5886.7
    5 0.13414.71.5786.5
    8 0.1516.41.5686.3
    10 0.1617.61.5584
    The idea of the invention is that the heating fluid yields heat to the central tank where the butyl perfluoride is contained, which is initially charged to OOC (and is self-adjusting to 0.11 MPa, that is, 1.1 atm, in numbers round) and evaporates as the heat from outside. To calculate how much thermal load it can absorb without exceeding certain thresholds, suppose that the material is loaded at the said value of OOC in a 10-liter tank, in which initially there will be G moles in vapor state and Q moles in liquid state; and these Q moles will evaporate until they do so completely, at which time it has reached a temperature of 10 ° C, but no more; and therefore, in the total volume of the tank will be the G + Q moles at 10 ° C and in the vapor state.
    To establish the mass and volume balance, it is preferable to use the concept of molar volume (liters / mol) in the vapor phase and in the liquid phase, which correspond to the inverse of the densities taking into account that one mole is 238 grams, and which we designate by V and V, VT being the total volume. It has:
    G (moles) · Vy (liter / mol to O OC) + Q (moles) · V, (liter / mol to O OC) = VT
    (G + Q) (moles) · Vy (liter / mol at 10 OC) = VT
    being the values
    Vy (liter / mol to O OC) = 19.44
    V, (liter / mol at O OC) = 0.15
    Vy (liter / mol at 10 OC) = 13.54
    Where do you get that Q = (5.9 / 13.4) · G
    And finally, G = 0.51 moles and Q = 0.226; that is, 53.7 grams, which are the ones that evaporate, which produces a heat absorption, in the form of an internal energy increase of 4.65 kW. As 0.736 moles (175 grams) have been brought into play, the thermal sink capacity is 26.25 kJlkg; notoriously smaller than that of ice, which will be below, but close to, its latent heat of fusion, which is 334 kJlkg; although perfluroride has the advantage of acting just in a range that coincides with the one that you want to keep for certain products.
    Note that a thermal load of 1W for 1h implies a total of 3.6 kJ of energy. This thermal load depends on multiple factors that are not directly related to the invention, but this figure is left as a reference.
    The use of an elastic wall that deforms with increasing internal pressure improves the performance of the invention. In order to protect said wall and not subject it to disproportionate deformations, a spring is provided that balances the deformation. Assume that the spring retracts in such a way that it balances a pressure of 0.16 MPa (which is the equilibrium pressure between phases at 100C) with a displacement that implies an increase of 1 liter in the volume of the tank, which makes the second system equation change
    to:
    13.54 (G + Q) = 11
    From which you get, first,
    Q = O, 58G
    Definitive Yen, G = O, 5514; and Q = O, 3 moles, which is equivalent to 71g, and therefore 6.14kJ (which is 32% higher than the previous value, although the increase in volume was only 10%).
    A subject to be taken into account in the practical application of the invention is the possible condensation of the water vapor contained in the air of the box, which may require the presence of hygroscopic substances inside the drawer, which is not however part of the invention.
    Once the invention is clearly described, it is noted that the particular embodiments described above are subject to modifications in detail as long as they do not alter the fundamental principle and essence of the invention.
    权利要求:
    Claims (1)
    [1]
    1 -Temperature maintenance device in a thermal insulation container, applied to a thermally insulated box, container or container (1) that is sealed, characterized in that
    a deposit (3) of solid walls is placed in the central part of the interior of the container, vertically into which a material is loaded in a biphasic state, which can be selected between solid and liquid, and therefore involve the process of solidification fusion; or between liquid and steam, and therefore involve the evaporation-condensation process; the process of state change being characterized by the pressure and temperature existing in said central tank, said central tank being firmly closed once loaded with the biphasic material; said central tank being separated from the payload by a space (5) through which the internal air of the drawer circulates, said space being maintained by vertical grilles provided with small legs perpendicular to the grid plane; and the payload packages (2) being separated from the walls of the container, by means of a grid that confines said payload packages, leaving a perimeter space (9) between the walls and the packages; circulating the interior air of the drawer through said space; and said central reservoir being and the payload packages being supported on a solid base (10) drilled or drilled, and said base provided with small support legs that rest on the bottom of the interior of the container, and corresponding the location of some of the holes in the free space that remain around the walls of the central tank (5), and the location of other holes in the base corresponding to the free space (9) between the payload packages and the walls of the container or box;
    and leaving a free space (8) between the inner face of the lid (7) of the container and the upper faces of the payload packages, the inner air of the container being able to circulate through said free space, said space being maintained by a grid provided of small legs perpendicular to the grid plane.
    2 -Temperature maintenance device / in a thermal insulation container, according to claim one, characterized in that the central tank (3) is extended on its bottom in a closed plate (13, 17) that rests on the bottom of the interior of the drawer or container, the dish being able to have a circular shape, or quadrangular shape, or any other shape with room inside the bottom perimeter of the drawer.
    3 -Temperature maintenance device / in a thermal insulation vessel, according to any of the first or second claims, characterized in that porous vertical walls (6), drilled or in grid, are located within the central tank, within which The solid phase is initially confined, when the device is loaded with its material, this being applicable to two-phase solid-liquid systems in the device.
    4 -Temperature maintenance device in a thermal insulation container, according to any of the first or second claims, characterized in that the upper wall of the central tank is of deformable elastic material (20), and above said wall there is a movable horizontal plate (19), guided by a solid vertical walls that are an extension of the walls of the central tank, said plate being trapped between said elastic wall from below, and a spring (18) from above, this spring being held above at the top of the walls that guide the movement of the plate, this being applicable to two-phase liquid vapor systems in the device.
    5 -Temperature maintenance device in a thermal insulation container, according to any of the preceding claims, characterized in that plastic or deformable solid material bags are located, along which a natural convection moves fluid, each bag having an enlarged part or bib (22) covering a whole side of the walls of the drawer (1), plus an elongated band type part (21) in contact with the cold focus, plus a connection (23) between bib and band at the top of the cargo packages (2), and another connection (24) between the band and bib, below the packages, there is also a flange (25) for snap closure between the end of the upper connection and the beginning of the elongated band (21) descending.
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2649993T3|2018-01-16|Modular system for thermally controlled packaging devices
    US6904956B2|2005-06-14|Method and thermally active convection apparatus and method for abstracting heat with circulation intermediate three dimensional-parity heat transfer elements in bi-phase heat exchanging composition
    ES2583578T3|2016-09-21|Thermal insulation equipment and method of mounting a thermal control housing
    ES2622727T3|2017-07-07|Packing system with temperature assured based on convection
    JP5402416B2|2014-01-29|Constant temperature storage container and transportation method
    US7240720B2|2007-07-10|Method and thermally active multi-phase heat transfer apparatus and method for abstracting heat using liquid bi-phase heat exchanging composition
    US7055575B2|2006-06-06|Thermally active convection apparatus
    ES2320409T3|2009-05-22|SYSTEM FOR THE TRANSPORT OF GOODS TO CONSTANT TEMPERATURE.
    WO2015189450A1|2015-12-17|Thermal storage system and method for charging and discharging same
    ES2544463T3|2015-08-31|Modular device for the packaging of heat sensitive products
    ES2890805T3|2022-01-24|A thermally insulated container
    ES2552565B1|2016-09-08|Temperature maintenance device in a thermal insulation vessel
    ES2387659T3|2012-09-27|Packaging element for the realization of an isothermal packaging and obtained packaging
    JP2021502537A|2021-01-28|Insulated transport box and structure of insulated transport box
    JP6134273B2|2017-05-24|Latent heat storage material and latent heat storage tank
    JP6501579B2|2019-04-17|Constant temperature storage container
    ES2414310B1|2014-03-21|HOT HEAT-BASED THERMAL STORAGE MODULE WITH HIGH HEAT TRANSFER RATES
    WO2017051050A1|2017-03-30|Portable recipient for thermosensitive products
    US10907878B2|2021-02-02|Electricity free portable evaporative cooling device
    ES2726937T3|2019-10-10|Container for refrigerated transport
    JP6434867B2|2018-12-05|Heat storage material filling container and heat storage tank
    ES2613711T3|2017-05-25|Improved transport packaging
    JP3106402U|2005-01-06|Heat storage pack
    ES2702176T3|2019-02-27|Container for the storage and transport of organic peroxides
    ES2732775T3|2019-11-25|Packing system with insured temperature based on convection
    同族专利:
    公开号 | 公开日
    ES2552565B1|2016-09-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4646934A|1986-01-21|1987-03-03|Mcallister Ian R|Vacuum insulated shipping container and method|
    US20040069789A1|2002-09-12|2004-04-15|Takashi Ohno|Heat-insulating container|
    WO2006082433A1|2005-02-03|2006-08-10|Tattam Edwin F|Transport container|
    WO2009035661A1|2007-09-11|2009-03-19|Cold Chain Technologies, Inc.|Insulated pallet shipper and methods of making and using the same|
    US20130048647A1|2009-09-21|2013-02-28|Cool Containers Llc|Temperature controlled cargo containers|CN105883234A|2016-06-28|2016-08-24|铜陵有色兴铜机电制造有限公司|Converter hopper|
    法律状态:
    2016-09-08| FG2A| Definitive protection|Ref document number: 2552565 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160908 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201500496A|ES2552565B1|2015-07-03|2015-07-03|Temperature maintenance device in a thermal insulation vessel|ES201500496A| ES2552565B1|2015-07-03|2015-07-03|Temperature maintenance device in a thermal insulation vessel|
    [返回顶部]