EP2505516A1 - Dampfdispersonssystem für Frachtcontainer, Frachtsystem und Verfahren zur Beladung von Flüssigkeiten in einem Behälter damit - Google Patents

Dampfdispersonssystem für Frachtcontainer, Frachtsystem und Verfahren zur Beladung von Flüssigkeiten in einem Behälter damit Download PDF

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Publication number
EP2505516A1
EP2505516A1 EP12161405A EP12161405A EP2505516A1 EP 2505516 A1 EP2505516 A1 EP 2505516A1 EP 12161405 A EP12161405 A EP 12161405A EP 12161405 A EP12161405 A EP 12161405A EP 2505516 A1 EP2505516 A1 EP 2505516A1
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EP
European Patent Office
Prior art keywords
steam
container
cargo
dispersion system
diffuser
Prior art date
Legal status (The legal status 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 status listed.)
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Application number
EP12161405A
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English (en)
French (fr)
Inventor
Stephen D. Podd
Victor I. Podd
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP2505516A1 publication Critical patent/EP2505516A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
    • B65D88/745—Large containers having means for heating, cooling, aerating or other conditioning of contents blowing or injecting heating, cooling or other conditioning fluid inside the container

Definitions

  • thermoplastic tanks for use in shipping containers are available from Powertex Inc. of Houston, Texas, as described in U.S. Patent Application Serial Number 11 /737,651 .
  • the present disclosure is directed in general to systems and methods of conditioning cargo temperatures within transport tanks or containers.
  • the components of the systems are simple to manufacture, install and use.
  • a steam dispersion system for conditioning liquid cargo in a container may include a steam generator for generating steam.
  • the steam dispersion system may also include a diffuser in communication with the steam generator.
  • the diffuser may be positioned around, under and/or in proximity to a container carrying a liquid cargo.
  • the diffuser may have a plurality of apertures therethrough for expelling the steam into the container and about the liquid cargo to adjust a temperature of the cargo to facilitate unloading the cargo from the container.
  • a permeable sheet may be positioned between the diffuser and the cargo to help with temperature regulation and to protect the cargo container from heat damage and/or wear.
  • the diffuser of the exemplary steam dispersion system may have a first end and a second end. The first end and the second may be connected to the distribution junction to expel the steam from the apertures.
  • One or more diffusers may be placed between the container and the cargo.
  • the steam dispersion system may also include a distribution junction for directing the steam to the diffuser.
  • the steam generator and the diffuser may be connected to the distribution junction.
  • the steam dispersion system may also include a thermoplastic tank for carrying the liquid cargo.
  • a cargo shipping system may include a first container and a second container positioned in the first container.
  • the second container may contain a liquid cargo.
  • the cargo shipping system may include a steam dispersion system with a diffuser located in the first container in proximity to the second container.
  • the diffuser may have a plurality of apertures formed in the diffuser for expelling steam into the first container and around the second container to adjust a temperature of the liquid cargo.
  • a permeable sheet may be placed between the steam dispersion system and the second container.
  • one or more diffusers may be placed between the first container and the second container.
  • a steam generator may be provided for generating steam and a distribution junction may be provided for directing steam to the diffusers.
  • the steam generator may be in communication with the diffusers to control the rate and flow of the steam from the diffusers.
  • a method of conditioning liquid cargo in a container may include positioning a steam dispersion system in a first container; loading a second container into the first container, the second container holding a liquid cargo proximate the steam dispersion system; and directing a quantity of steam through the steam dispersion system to expel the steam into the first container about the second container to adjust a temperature of the liquid cargo.
  • the steam dispersion system may include one or more vents for venting the steam into the first container.
  • One or more of the vents may be adjustable.
  • a pressure regulator may be adjusted to regulate flow rate and pressure of the steam.
  • a sheet may be placed between the steam dispersion system and the second container according to this aspect of the disclosure.
  • the method may include off-loading the liquid cargo when the temperature reaches an optimal level.
  • a cargo shipping system may include a steam dispersion system including a wicking sheet; a cargo carrier; and a shipping container.
  • the cargo carrier may be placed within the shipping container and exposed to the steam dispersion system such that the steam dispersion system expels steam about the cargo carrier and the wicking sheet to heat the contents of the cargo carrier for discharge.
  • the exemplary cargo shipping system 10 broadly includes a steam dispersion system 12, a cargo containment unit, flexitank or cargo carrier 14, and a shipping container 16.
  • the shipping container 16 has a floor or bottom 46, a rear wall 48, side walls, 50, 52, a roof 54, and an entryway 56, including doors 58, 60 on either side of the entryway 56.
  • the steam dispersion system 12 is positioned within an interior of the shipping container 16, and the cargo carrier 14 (shown in phantom for clarity) is positioned over the steam dispersion system 12 for reasons which are described in greater detail below.
  • the steam dispersion system 12 includes a steam distribution junction or manifold 18, which is connected to a steam generator 20 by way of a supply hose 24.
  • the steam generator 20 may include a pressure control regulator or valve 21 to control steam pressure, as described by example operation below.
  • the manifold 18 has an input coupling 26, to which the supply hose 24 is connected.
  • the manifold 18 may also include one or more distribution couplings 28, to which respective steam dispersion devices, dispersing units, or diffusers 22 are connected.
  • the manifold 18 in this example is a metal pipe and the distribution couplings 28 are metal fittings, these components may be formed from other materials and may be configured in different arrangements.
  • the manifold 18 may be rubber tubing and the distribution couplings 28 may be plastic fittings. See, e.g., FIGURE 3 . There also may be fewer or additional distribution couplings 28 than the quantity shown in FIGURE 1 . Thus, the manifold 18 and couplings 28 are not limited to the exemplary arrangement shown in FIGURE 1 .
  • FIGURE 1 further shows that the steam diffusers 22 have attachment ends 30 that are connected to respective receiving or connection ends 29 of the distribution couplings 28.
  • each of the steam diffusers 22 has numerous apertures or vent openings from which steam is expelled into the shipping container 16.
  • a permeable cloth, sheet or layer 36 may be placed over one or more of the steam diffusers 22 and between the steam diffusers 22 and the cargo carrier 14.
  • the permeable sheet 36 may help prolong the life of the cargo carrier 14, particularly if the cargo carrier 14 is a flexible plastic tank, such as a SEALINER® flexitank product available from Powertex, Inc.
  • the sheet 36 may protect the cargo carrier 14 from heat damage, and being permeable or porous, the sheet 36 does not entirely block release of steam into the shipping container 16, as described by example operation below.
  • FIGURE 2 is a detailed view of a portion of the manifold 18 as shown in FIGURE 1 .
  • one of the distribution couplings 28 of the manifold 18 is connected to one of the steam diffusers 22 by mating the attachment or receiving end 30 of the respective steam diffuser 22 to the respective connection end 29 of the distribution coupling 28.
  • the receiving ends 29, 30 are screwed together, but may be twist locked together or snap-fit, one end over the other, etcetera.
  • the steam diffuser 22 may be made of a coiled or spiral- or serpentine-wrapped metal that forms a plurality of apertures, gaps, spaces or vent openings 32 between each coil of metal.
  • the diffuser 22 may be a continuous, metallic, helically formed device; however, the diffuser 22 could also be formed from hardened plastic and/or from separate pieces fitted together. Accordingly, when the steam generator 20 (see FIGURES 1 and 5 ) is activated, steam 34 is supplied from the manifold 18 into the steam diffuser 22 and is expelled under pressure from each of the vent openings 32 to fill the interior of the shipping container 16 with steam 34. Because the steam 34 is expressed under pressure from the steam diffuser 22 into the container 16 and is not merely circulated or pumped through the steam diffuser 22, heating occurs rapidly within the shipping container 16.
  • the apertures 32 of the steam diffusers 22 shown in FIGURE 2 may be staggered and may have different sizes. Alternatively, the apertures 32 may be evenly spaced. They may be formed over various areas of the steam diffusers 22, or the apertures 32 may be formed, for instance, only along sides of the steam diffusers 22 substantially parallel to the floor 46 of the container 16 to effect a directional diffusion of the steam 34; e.g., to direct the steam 34 away from the floor 46 of the container 16. Additionally, the apertures 32 may be adjustable, e.g., changed in size manually, electronically, or elastomerically by pressure to control the flow of the steam 34.
  • one or more of the apertures 32 may be opened, adjusted, or closed, as indicated by double headed arrow in the inset of FIGURE 2 , to a larger (or smaller) width, circumference, or the like as shown by element number 33 to control the flow of the steam 34 and thus the rate of temperature change within the container 16.
  • steam pressure may be regulated by the pressure control regulator 21 (see FIGURES 1 and 5 ).
  • the apertures 32 may be expanded elastomerically under pressure to permit more of the steam 34 to discharge from the apertures 32.
  • the pressure control regulator 21 decreases steam pressure, the apertures 32 may contract to limit the flow of the steam 34 into the container 16.
  • the floor 46 of the shipping container 16 may be angled.
  • the sheet 36 may be a nonwoven textile to permit some of the steam 34 to condense within its fibers thereby saturating the sheet 36 with hot water. With assistance from the angled floor 46 and gravity, the sheet 36 wicks the condensed steam 34 (in the form of hot water) under the cargo carrier 14 and about the floor 46 thereby heating the floor 46 and increasing the efficiency of the steam dispersion system 12.
  • the angled floor 46 may assist the hot water to weep from the shipping container 16, such as from near the entryway 56 or other openings in the shipping container 16. If the floor 46 is not angled, the sheet 36 may still wick some of the condensed steam 34 to help efficiencies of the steam dispersion system 12.
  • an alternative manifold 118 may include a steam input nozzle 126 and a number of nipple-type fittings or dispersion connectors 128 having respective connection ends 129.
  • the exemplary manifold 118 may be made from a flexible rubber or other elastomeric material and may be fitted with the nipple connectors 128.
  • the connectors 128 may be hardened plastic or another suitably durable material for receiving attachment ends of respective steam diffusers (not shown but compare ends 30 of diffuser 22 in FIGURE 2 ).
  • the diffuser attachment ends may be press-fit over the nipples 128.
  • the arrangement could be reversed; e.g., the attachment ends could be formed to press-fit or snap-fit into the nipples 128. Still other connection arrangements are possible and are within the scope of the present disclosure.
  • FIGURES 4 and 5 show the interior of the shipping container 16 with the cargo carrier 14 and the felt layer 36 positioned on the floor of the container 16.
  • a gate assembly 38 is positioned to support the cargo carrier 14 after it is filled with a liquid cargo.
  • FIGURE 5 particularly shows a rear view of the shipping container 16.
  • the gate assembly 38 includes an access port 40 through which a discharge hose 42 is connected to a loading/discharge port 44 of the cargo carrier 14 (having been filled with cargo relative to FIGURE 4 ).
  • the supply hose 24 is shown connected to the steam generator 20, briefly introduced above, leading through the entryway 56 of the shipping container 16 and is connected with the manifold 18 (compare FIGURE 1 ).
  • the arrangement shown in FIGURE 5 provides for the steam 34 to be delivered into the manifold 18 and released into the environment of the container 16 to surround the cargo carrier 14.
  • test results in FIGURE 6 show that after about 24 to about 30 hours, the cargo shipping system 10 according to one aspect of the disclosure increased a temperature of a liquid cargo nearly threefold to a nominal temperature for unloading the liquid cargo.
  • a temperature of the liquid cargo in a flexitank at about 54° F in an ambient environment of about 20° F increased to about 130° F at 9 psi of steam pressure within thirty hours.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
EP12161405A 2011-03-30 2012-03-27 Dampfdispersonssystem für Frachtcontainer, Frachtsystem und Verfahren zur Beladung von Flüssigkeiten in einem Behälter damit Withdrawn EP2505516A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/075,874 US20120247067A1 (en) 2011-03-30 2011-03-30 Steam dispersion system for cargo containers

Publications (1)

Publication Number Publication Date
EP2505516A1 true EP2505516A1 (de) 2012-10-03

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EP12161405A Withdrawn EP2505516A1 (de) 2011-03-30 2012-03-27 Dampfdispersonssystem für Frachtcontainer, Frachtsystem und Verfahren zur Beladung von Flüssigkeiten in einem Behälter damit

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US (1) US20120247067A1 (de)
EP (1) EP2505516A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103818660A (zh) * 2014-03-26 2014-05-28 四川宏华石油设备有限公司 一种柔性水罐的管汇系统
EP4214087A4 (de) * 2020-09-15 2024-01-31 Likua Endustriyel Ambalaj Malzm. San. ve Tic. Ltd. Sti. Heizeinheit

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Publication number Priority date Publication date Assignee Title
FR3063925B1 (fr) * 2017-03-20 2020-02-07 Thermodynamic Workshop Training - Twt Dispositif de traitement thermique de grumes
CN112078986B (zh) * 2020-09-07 2023-01-24 越海散装液体物流有限公司 一种集装箱蒸汽加热系统
US12382944B2 (en) * 2022-01-11 2025-08-12 Ecolab Usa Inc. Rigid fumigant barrier for shipping container door

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JPS58112989A (ja) * 1981-12-24 1983-07-05 新日本製鐵株式会社 沈降性スラリ−燃料の貯蔵方法及び貯蔵タンク
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103818660A (zh) * 2014-03-26 2014-05-28 四川宏华石油设备有限公司 一种柔性水罐的管汇系统
CN103818660B (zh) * 2014-03-26 2016-02-17 四川宏华石油设备有限公司 一种柔性水罐的管汇系统
EP4214087A4 (de) * 2020-09-15 2024-01-31 Likua Endustriyel Ambalaj Malzm. San. ve Tic. Ltd. Sti. Heizeinheit

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