WO2012176075A2 - Methods for transportation of thermally unstable products - Google Patents
Methods for transportation of thermally unstable products Download PDFInfo
- Publication number
- WO2012176075A2 WO2012176075A2 PCT/IB2012/051555 IB2012051555W WO2012176075A2 WO 2012176075 A2 WO2012176075 A2 WO 2012176075A2 IB 2012051555 W IB2012051555 W IB 2012051555W WO 2012176075 A2 WO2012176075 A2 WO 2012176075A2
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- WIPO (PCT)
- Prior art keywords
- vehicle
- cryoagent
- thermally unstable
- loading
- cargo compartment
- Prior art date
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/105—Movable containers
-
- 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
- F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
- F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
- F25D2303/083—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled
Definitions
- the invention relates to the field of transportation of predominantly thermally unstable products such as perishable foodstuffs, medicines, biological materials, the storage of which requires cooling or freezing them, and the transportation of which requires the maintenance of predetermined temperatures within a heat-insulated space of a vehicle.
- cryogenic refrigeration systems which employ a cold accumulator in the form of a cryogenic tank containing a low-boiling liquefied gas.
- the advantages of employing such refrigeration systems include the absence of onboard compressor, reduction in maintenance costs for such a vehicle, the absence of carbon dioxide emissions to the atmosphere, and a significant reduction in noise level.
- the limitations of the above described systems include the necessity to install a compressor refrigerating machine onto every vehicle as well as the necessity of a rather long-lasting downtime of a vehicle associated with a long-lasting cooling of a cold accumulator; in this manner, each subsequent filling/refilling is performed in a specially equipped place, where stationary power supply systems for compressor plants are installed.
- This results in an increase in vehicle maintenance costs, an increase in the total period of time of transportation, a reduction in the efficiency of operating the vehicle, and, accordingly, the necessity to operate simultaneously a greater number of vehicles.
- the object of the present invention is to provide a method for transportation of thermally unstable products, which method, owing to an optimally selected sequence of operations performed, will allow to ensure a reliable transportation of thermally unstable products, during which transportation there will be provided the possibility of employing cryocooling at all stages of transportation without the necessity of a long-lasting downtime of a vehicle during filling a cold accumulator as well as all the requisite conditions for the storage of thermally unstable products and requisite safety measures associated with the employment of cryoagents.
- the present invention provides a method for transportation of thermally unstable products, the method comprising filling a cold accumulator of a vehicle with a cryoagent, loading the thermally unstable products into a cargo compartment of the vehicle, running the loaded vehicle from the place of loading to a point(s) of destination, and unloading the thermally unstable products out of the cargo compartment of the vehicle at the point(s) of destination. wherein at least on the stage of running the loaded vehicle from the place of loading to the point(s) of destination the cargo compartment is thermostated, and the cold accumulator is refilled with the cryoagent at the place of loading the thermally unstable products into the cargo compartment of the vehicle and, at least partially, during such a loading.
- the present invention provides a method for transportation of thermally unstable products, the method comprising filling a cold accumulator of a vehicle with a cryoagent, loading the thermally unstable products into a cargo compartment of the vehicle, running the loaded vehicle from the place of loading to a point(s) of destination, and unloading the thermally unstable products out of the cargo compartment of the vehicle at the point(s) of destination, wherein at least on the stage of running the loaded vehicle from the place of loading to the point(s) of destination the cargo compartment is thermostated, and the cold accumulator is refilled with the cryoagent at at least one of the points of destination and, at least partially, during unloading the thermally unstable products out of the cargo compartment of the vehicle.
- a cold accumulator shall mean both heat-insulated tanks installed on board of a vehicle for accumulating and storing a cryoagent and panels filled with an eutectic solution and capable of accumulating cold.
- the cold accumulator may be filled with the cryoagent by any method available and employed in the art, for example, by supplying the cryoagent from a mobile or stationary heat-insulated tank located in places specially equipped for storing cryoagents using distribution headers and/or piping systems.
- a cryoagent being used for charging the panels has a rather low temperature when exiting the panels. Therefore, it is desirable to use an additional liquefaction plant, which receives a gaseous cryoagent after its use in a liquid form for charging eutectic panels.
- the cryoagent circulates in a closed cycle flowing out of the liquefaction plant into the stationary heat-insulated tank, from which the cryoagent flows via a distribution header to the eutectic panels of the vehicle and returns via a collecting pipeline back to the liquefaction plant.
- a point of destination to where a vehicle previously loaded is run and where thermally unstable products are unloaded out of a cargo compartment shall mean any stationary or mobile facilities, for example, storage rooms specially intended for storing thermally unstable products, storage facilities within big supermarkets and other trading floors.
- Mobile storage facilities may comprise specially equipped compartments in rail cars, aircraft, ships, or motor vehicles or freight containers carried by any means of transport, etc.
- thermostating a cargo compartment i.e., a compartment, where thermally unstable products to be transported are disposed
- a cargo compartment i.e., a compartment, where thermally unstable products to be transported are disposed
- the implementation of the method of transportation of thermally unstable products comprising refilling a cold accumulator with a cryoagent at a place of loading the thermally unstable products into a cargo compartment of a vehicle and, at least partially, during such aloading, allows to minimize a forced downtime of the vehicle in the process of transportation of the thermally unstable products as well as to ensure a collateral performance of at least two process steps, this, in turn, allowing to shorten the total transportation time, to elevate the level of storageability of the products transported as well as to ensure a high cost effectiveness of the method in accordance with the present invention.
- a low-boiling liquefied gas is used as the cryoagent.
- liquid nitrogen having the boiling temperature of about -196° ⁇ is used as the cryoagent.
- the advantages of using such a coolant include its relatively low price as well as the fact that a substantially inert storage environment may be ensured with the help of it, this also contributing to the storageability of thermally unstable products. Furthermore, the employment of liquid nitrogen eliminates unfavorable pollution of the environment.
- liquid carbon dioxide may be used as the cryoagent. Liquid carbon dioxide (food liquid carbon dioxide) is a liquefied carbon-dioxide gas, which is stored at a high pressure of about 65 atm to about 70 atm and is a colorless liquid.
- At least one eutectic panel with channels for the passage of a cryoagent is employed as a cold accumulator of a vehicle.
- Said at least one eutectic panel or an array of eutectic panels may be disposed within the internal volume of the vehicle, for example, within a cargo compartment, in particular, may be installed on the ceiling and walls of said compartment.
- the eutectic panel is provided with the channels for the passage of the cryoagent, for example, a coil may be installed within the panel body, through which coil the cryoagent such as liquid nitrogen or liquid carbon dioxide circulates cooling the panel’s eutectic solution down to a temperature, which is by 8° ⁇ to 10o ⁇ lower than the freezing point of the eutectic solution.
- eutectic panels allows the air at the place of their installation to be cooled because of melting heat energy of the frozen eutectic solution.
- the advantages of using eutectic panels, which are filled or cooled with the cryoagent during loading/unloading the vehicle, as the cold accumulator include the absence of the necessity to install compressor mechanical systems onto the vehicle, a substantial shortening of the time of filling (cooling) the eutectic panels and combining at least two processes – loading/unloading and refilling the eutectic panels, this reducing substantially the number of vehicles required and eliminating the necessity of utilizing a place specially equipped with a filling station.
- the cold accumulator in this case the eutectic panels, is refilled with a cryoagent at at least one of the points of destination and, at least partially, during loading/unloading the products into/out of the cargo compartment of the vehicle.
- a cold accumulator of a vehicle further comprises a heat-insulated tank for storing a cryoagent, which may be fed to eutectic panels during transportation, this increasing substantially the time of operation of the vehicle between refillings.
- FIG. 1 is a schematic view of vehicles being refilled with a cryoagent at a place of loading products into a cargo compartment of a vehicle.
- the figure is a schematic view of a vehicle 1 equipped with any combined cooling system, which has, among other elements, a cold accumulator including mechanical systems; of a vehicle 2 provided with eutectic panels; of a vehicle 3 provided with a cooling system with a direct injection of a cryoagent into a cooling compartment or with a heat exchange device as well as with at least one heat-insulated tank for a cryoagent; and of a vehicle 4 furnished with at least one eutectic panel and a heat-insulated tank for a cryoagent. Furthermore, the figure illustrates a stationary cryoagent tank 5, a flexible hose 6 for feeding a cryoagent, a header 7, and a loading/unloading area 8.
- the method of transportation of thermally unstable products in accordance with the present invention may be practiced as follows.
- cold accumulators of a vehicle for example, of the vehicle 4 furnished with eutectic panels and the heat-insulated tank for cryoagent storing, are filled with the cryoagent.
- Said heat-insulated tank is employed to cool the eutectic panels additionally during a long-lasting transportation of the thermally unstable products.
- the loaded vehicle 4 is run from the place of loading to a point(s) of destination, where the thermally unstable products are unloaded out of the cargo compartment of the vehicle 4.
- the cargo compartment of the vehicle 4 is thermostated where required.
- the cold accumulator is refilled with the cryoagent in the area 8 of loading the products into the cargo compartment of the vehicle 4 and, at least partially, during this loading as well as in the area 8 of unloading the products out of the cargo compartment and, at least partially, during this unloading.
- Refilling is performed by disposing the tank 5 for storing the cryoagent in the immediate vicinity of the loading/unloading area at the destination point as well as all of the requisite utilities for feeding the cryoagent, in particular, the flexible hose 6 for feeding the cryoagent and the header 7, are disposed in said area, so that they are not obstacles for the maneuvering of vehicles.
- the cryoagent tank 5 may be configured both stationary and mobile.
- the vehicle is connected to the header 7, which is connected to cryoagent tank 5, using the flexible hose 6, and the cryoagent is then fed to refill the cold accumulators of the vehicle 4, in particular, the eutectic panels, as well as to fill the heat-insulated tank for the cryoagent, which is installed on the vehicle.
- An additional liquefaction plant may be further used for receiving a gaseous cryoagent after its use in liquid form for charging eutectic panels, thereby providing the circulation of the cryoagent in a closed cycle by feeding it from the liquefaction plant to the stationary heat-insulated tank 5, from which the cryoagent via a distribution header 6 flows into the eutectic panels of the vehicle 4 and returns via a collecting pipeline back to the liquefaction plant.
- This embodiment of filling the cold accumulator with the cryoagent in the area of loading/unloading the thermally unstable products has been presented by way of example only,and not as a limitation.
- the present invention provides methods for transportation of thermally unstable products, which methods, owing to an optimally selected sequence of operations performed, allow a reliable transportation of thermally unstable products and provide the possibility of employing cryocooling at all stages of transportation without the necessity of a long-lasting downtime of a vehicle during filling a cold accumulator as well as all requisite conditions for storing thermally unstable products and all requisite safety measures associated with the employment of cryoagents are provided.
Abstract
The invention relates to the field of transportation of predominantly thermally unstable products such as perishable foodstuffs, medicines, biological materials, the storage of which requires their cooling or freezing, and the transportation of which requires the maintenance of predetermined temperatures within a heat-insulated space of a vehicle. The invention provides a method for transportation of thermally unstable products, the method comprising filling a cold accumulator of a vehicle with a cryoagent, loading the thermally unstable products into a cargo compartment of the vehicle, running the loaded vehicle from the place of loading to a point(s) of destination and unloading thermally unstable products out of the cargo compartment of the vehicle at the point(s) of destination, wherein at least on the stage of running the loaded vehicle from the place of loading to the point(s) of destination, the cargo compartment is thermostated, and the cold accumulator is refilled with the cryoagent at the place of loading the products into the cargo compartment of the vehicle and, at least partially, during such a loading. Furthermore, the invention provides a method for transportation of thermally unstable products, the method comprising filling a cold accumulator of a vehicle with a cryoagent, loading the thermally unstable products into a cargo compartment of the vehicle, running the loaded vehicle from the place of loading to a point(s) of destination and unloading the thermally unstable products out of the cargo compartment of the vehicle at the point(s) of destination, wherein at least on the stage of running the loaded vehicle from the place of loading to the point(s) of destination, the cargo compartment is thermostated, and the cold accumulator is refilled with the cryoagent at at least one of the points of destination and, at least partially, during unloading the products out of the cargo compartment of the vehicle.
Description
The invention relates to the field of
transportation of predominantly thermally unstable
products such as perishable foodstuffs, medicines,
biological materials, the storage of which requires
cooling or freezing them, and the transportation of
which requires the maintenance of predetermined
temperatures within a heat-insulated space of a vehicle.
Currently, transportation is a
strategically important element in the general
life-support system for both big human settlements and
individual organizations, and individual consumers of
products being transported. In particular, a timely
supply of fresh foodstuffs, medicines or biological
materials is important; and upon transportation all
storage conditions for the above-listed thermally
unstable products should be observed in order to
preserve their optimal quality. Such conditions of
transportation of thermally unstable products may be
ensured by cryogenic refrigeration systems, which
employ a cold accumulator in the form of a cryogenic
tank containing a low-boiling liquefied gas. The
advantages of employing such refrigeration systems
include the absence of onboard compressor, reduction
in maintenance costs for such a vehicle, the absence of
carbon dioxide emissions to the atmosphere, and a
significant reduction in noise level.
In employing such refrigeration systems,
an important stage is filling the cold accumulator of
a vehicle with a cryoagent as well as its refilling in
the course of service. Generally, the process of filling
the cold accumulator with a cryoagent is quite
difficult because it is performed mostly in specific
places equipped for this purpose, where an expensive
filling station should be preinstalled and the
possibility of placing multiple vehicles should be
provided. Accordingly, filling and refilling performed
in this manner result in an undesirable downtime of a
vehicle and the travel thereof to a place of filling;
all these may negatively affect economic aspects of
transportation. Accordingly, the topical problem is to
provide both safe and proper filling and refilling of
cold accumulators of a vehicle whilst eliminating the
necessity of its downtime and travel to a place of
filling and refilling.
Known from the prior art are typical
methods of transportation of thermally unstable
products, which methods comprise filling a cold
accumulator of a vehicle with a cryoagent, loading
thermally unstable products into a cargo compartment,
running the loaded vehicle from the place of loading
to a point(s) of destination, and unloading thermally
unstable products out of the cargo compartment of the
vehicle at the point(s) of destination. In such a
case, filling the cold accumulator may consist in
cooling eutectic solutions within cooling panels, so
called eutectic panels, for example, by operating a
refrigeration machine from an external power supply
network during parking the vehicle in a specially
equipped place (И.Г. Чумак и др. Холодильные
установки. - М.: Легкая и пищевая промышленность, 1981, с.304-307).
The limitations of the above described
systems include the necessity to install a compressor
refrigerating machine onto every vehicle as well as
the necessity of a rather long-lasting downtime of a
vehicle associated with a long-lasting cooling of a
cold accumulator; in this manner, each subsequent
filling/refilling is performed in a specially equipped
place, where stationary power supply systems for
compressor plants are installed. This, in turn,
results in an increase in vehicle maintenance costs, an
increase in the total period of time of
transportation, a reduction in the efficiency of
operating the vehicle, and, accordingly, the necessity
to operate simultaneously a greater number of vehicles.
The object of the present invention
is to provide a method for transportation of
thermally unstable products, which method, owing
to an optimally selected sequence of operations
performed, will allow to ensure a reliable
transportation of thermally unstable products,
during which transportation there will be
provided the possibility of employing cryocooling
at all stages of transportation without the
necessity of a long-lasting downtime of a
vehicle during filling a cold accumulator as well as
all the requisite conditions for the storage of
thermally unstable products and requisite safety
measures associated with the employment of
cryoagents.
In order to solve the above problem,
the present invention provides a method for
transportation of thermally unstable products,
the method comprising filling a cold accumulator of
a vehicle with a cryoagent, loading the
thermally unstable products into a cargo compartment
of the vehicle, running the loaded vehicle from
the place of loading to a point(s) of
destination, and unloading the thermally unstable
products out of the cargo compartment of the
vehicle at the point(s) of destination. wherein at
least on the stage of running the loaded vehicle
from the place of loading to the point(s) of
destination the cargo compartment is thermostated,
and the cold accumulator is refilled with the
cryoagent at the place of loading the thermally
unstable products into the cargo compartment of the
vehicle and, at least partially, during such a loading.
Also, in order to solve the above
problem, the present invention provides a method
for transportation of thermally unstable
products, the method comprising filling a cold
accumulator of a vehicle with a cryoagent,
loading the thermally unstable products into a cargo
compartment of the vehicle, running the loaded
vehicle from the place of loading to a point(s)
of destination, and unloading the thermally unstable
products out of the cargo compartment of the
vehicle at the point(s) of destination, wherein at
least on the stage of running the loaded vehicle
from the place of loading to the point(s) of
destination the cargo compartment is thermostated,
and the cold accumulator is refilled with the
cryoagent at at least one of the points of
destination and, at least partially, during
unloading the thermally unstable products out of
the cargo compartment of the vehicle.
In this context, a cold accumulator
shall mean both heat-insulated tanks installed
on board of a vehicle for accumulating and
storing a cryoagent and panels filled with an
eutectic solution and capable of accumulating
cold. The cold accumulator may be filled with the
cryoagent by any method available and employed
in the art, for example, by supplying the
cryoagent from a mobile or stationary heat-insulated
tank located in places specially equipped for
storing cryoagents using distribution headers and/or
piping systems.
When the panels filled with an
eutectic solution are used as a cold
accumulator, a cryoagent being used for charging the
panels has a rather low temperature when exiting
the panels. Therefore, it is desirable to use an
additional liquefaction plant, which receives a
gaseous cryoagent after its use in a liquid form
for charging eutectic panels. Thus, the
cryoagent circulates in a closed cycle flowing out
of the liquefaction plant into the stationary
heat-insulated tank, from which the cryoagent flows
via a distribution header to the eutectic panels of
the vehicle and returns via a collecting
pipeline back to the liquefaction plant.
In this context, a point of
destination, to where a vehicle previously
loaded is run and where thermally unstable products
are unloaded out of a cargo compartment shall
mean any stationary or mobile facilities, for
example, storage rooms specially intended for
storing thermally unstable products, storage
facilities within big supermarkets and other trading
floors. Mobile storage facilities may comprise
specially equipped compartments in rail cars,
aircraft, ships, or motor vehicles or freight
containers carried by any means of transport, etc.
In this context, thermostating a
cargo compartment, i.e., a compartment, where
thermally unstable products to be transported
are disposed, shall mean cooling this compartment
down to a desired temperature, where required,
or maintaining the desired temperature of the
compartment where the thermally unstable products to
be transported are disposed during at least one
of the stages of transportation, for example, when
running the loaded vehicle from the place of loading
to the point(s) of destination, the cargo
compartment is thermostated, or at any other stage
of transportation or any combination thereof.
The implementation of the method of
transportation of thermally unstable products,
comprising refilling a cold accumulator with a
cryoagent at a place of loading the thermally
unstable products into a cargo compartment of a
vehicle and, at least partially, during such
aloading, allows to minimize a forced downtime
of the vehicle in the process of transportation
of the thermally unstable products as well as to
ensure a collateral performance of at least two
process steps, this, in turn, allowing to shorten
the total transportation time, to elevate the level
of storageability of the products transported as
well as to ensure a high cost effectiveness of the
method in accordance with the present invention.
All of the above-mentioned
advantages may be achieved upon implementation
of a method of transportation of thermally
unstable products, the method comprising refilling a
cold accumulator with a cryoagent at at least
one of the points of destination and, at least
partially, during unloading the thermally
unstable products out of the cargo compartment
of the vehicle.
It will be also appreciated that
refilling the cold accumulator with the
cryoagent at a point(s) of destination and, at least
partially, during loading/unloading the thermally
unstable products into/out of the cargo
compartment of the vehicle does not rule out the
possibility of refilling by any other suitable
method, for example, at filling stations en
route of the vehicle.
Advantageously, a low-boiling
liquefied gas is used as the cryoagent.
Preferably, liquid nitrogen having the boiling
temperature of about -196°С is used as the
cryoagent. The advantages of using such a
coolant include its relatively low price as well as
the fact that a substantially inert storage
environment may be ensured with the help of it,
this also contributing to the storageability of
thermally unstable products. Furthermore, the
employment of liquid nitrogen eliminates unfavorable
pollution of the environment. In addition,
liquid carbon dioxide may be used as the
cryoagent. Liquid carbon dioxide (food liquid carbon
dioxide) is a liquefied carbon-dioxide gas,
which is stored at a high pressure of about 65 atm
to about 70 atm and is a colorless liquid. When
liquid carbon dioxide is discharged out of a
cylinder to the atmosphere, a portion thereof is
evaporated, while the other portion thereof
forms dry ice flakes. Carbon dioxide is nontoxic and
explosion proof; at its air concentration of over 5%
(92 g/m3), however, the level of oxygen is
reduced, which may cause oxygen deficiency and
suffocation; therefore, when using liquid carbon
dioxide as the cryoagent, adherence to all of
the requisite preventive measures is also of a great importance.
Advantageously, at least one
eutectic panel with channels for the passage of
a cryoagent is employed as a cold accumulator of a
vehicle. Said at least one eutectic panel or an
array of eutectic panels may be disposed within
the internal volume of the vehicle, for example,
within a cargo compartment, in particular, may
be installed on the ceiling and walls of said
compartment. The eutectic panel is provided with the
channels for the passage of the cryoagent, for
example, a coil may be installed within the panel
body, through which coil the cryoagent such as
liquid nitrogen or liquid carbon dioxide
circulates cooling the panel’s eutectic solution
down to a temperature, which is by 8°С to 10ºС
lower than the freezing point of the eutectic
solution. The use of eutectic panels allows the
air at the place of their installation to be
cooled because of melting heat energy of the frozen
eutectic solution. The advantages of using
eutectic panels, which are filled or cooled with the
cryoagent during loading/unloading the vehicle, as
the cold accumulator include the absence of the
necessity to install compressor mechanical systems
onto the vehicle, a substantial shortening of
the time of filling (cooling) the eutectic
panels and combining at least two processes –
loading/unloading and refilling the eutectic
panels, this reducing substantially the number of
vehicles required and eliminating the necessity
of utilizing a place specially equipped with a
filling station. This becomes possible thanks to the
above described implementation of the method in
accordance with the present invention, wherein
the cold accumulator, in this case the eutectic
panels, is refilled with a cryoagent at at least
one of the points of destination and, at least
partially, during loading/unloading the products
into/out of the cargo compartment of the vehicle.
In an alternative embodiment of the
method, a cold accumulator of a vehicle further
comprises a heat-insulated tank for storing a
cryoagent, which may be fed to eutectic panels
during transportation, this increasing
substantially the time of operation of the vehicle
between refillings.
The implementation of the method in
accordance with the present invention is illustrated
in the accompanying figure, which is a schematic view
of vehicles being refilled with a cryoagent at a place
of loading products into a cargo compartment of a
vehicle.
The figure is a schematic view of a
vehicle 1 equipped with any combined cooling system,
which has, among other elements, a cold accumulator
including mechanical systems; of a vehicle 2 provided
with eutectic panels; of a vehicle 3 provided with a
cooling system with a direct injection of a cryoagent
into a cooling compartment or with a heat exchange
device as well as with at least one heat-insulated tank
for a cryoagent; and of a vehicle 4 furnished with at
least one eutectic panel and a heat-insulated tank for
a cryoagent. Furthermore, the figure illustrates a
stationary cryoagent tank 5, a flexible hose 6 for
feeding a cryoagent, a header 7, and a
loading/unloading area 8.
The method of transportation of
thermally unstable products in accordance with the
present invention may be practiced as follows.
During loading thermally unstable
products into a cargo compartment, cold accumulators
of a vehicle, for example, of the vehicle 4 furnished
with eutectic panels and the heat-insulated tank for
cryoagent storing, are filled with the cryoagent. Said
heat-insulated tank is employed to cool the eutectic
panels additionally during a long-lasting transportation
of the thermally unstable products. The loaded vehicle
4 is run from the place of loading to a point(s) of
destination, where the thermally unstable products are
unloaded out of the cargo compartment of the vehicle 4.
At at least one stage of transportation of the
thermally unstable products, the cargo compartment of
the vehicle 4 is thermostated where required. The cold
accumulator is refilled with the cryoagent in the area
8 of loading the products into the cargo compartment
of the vehicle 4 and, at least partially, during this
loading as well as in the area 8 of unloading the
products out of the cargo compartment and, at least
partially, during this unloading. Refilling is performed
by disposing the tank 5 for storing the cryoagent in
the immediate vicinity of the loading/unloading area
at the destination point as well as all of the requisite
utilities for feeding the cryoagent, in particular, the
flexible hose 6 for feeding the cryoagent and the
header 7, are disposed in said area, so that they are
not obstacles for the maneuvering of vehicles. The
cryoagent tank 5 may be configured both stationary and
mobile. During loading/unloading the thermally
unstable products, the vehicle is connected to the
header 7, which is connected to cryoagent tank 5,
using the flexible hose 6, and the cryoagent is then fed
to refill the cold accumulators of the vehicle 4, in
particular, the eutectic panels, as well as to fill
the heat-insulated tank for the cryoagent, which is
installed on the vehicle. An additional liquefaction
plant (not shown) may be further used for receiving a
gaseous cryoagent after its use in liquid form for
charging eutectic panels, thereby providing the
circulation of the cryoagent in a closed cycle by
feeding it from the liquefaction plant to the stationary
heat-insulated tank 5, from which the cryoagent via a
distribution header 6 flows into the eutectic panels
of the vehicle 4 and returns via a collecting pipeline
back to the liquefaction plant. This embodiment of
filling the cold accumulator with the cryoagent in the
area of loading/unloading the thermally unstable
products has been presented by way of example only,and
not as a limitation.
Therefore, the present invention
provides methods for transportation of thermally
unstable products, which methods, owing to an
optimally selected sequence of operations performed,
allow a reliable transportation of thermally unstable
products and provide the possibility of employing
cryocooling at all stages of transportation without the
necessity of a long-lasting downtime of a vehicle
during filling a cold accumulator as well as all
requisite conditions for storing thermally unstable
products and all requisite safety measures associated
with the employment of cryoagents are provided.
Claims (12)
1. A method for transportation of thermally
unstable products, the method comprising filling a
cold accumulator of a vehicle with a cryoagent,
loading the thermally unstable products into a cargo
compartment of the vehicle, running the loaded
vehicle from the place of loading to a point(s) of
destination and unloading thermally unstable products
out of the cargo compartment of the vehicle at the
point(s) of destination, wherein at least at the
stage of running the loaded vehicle from the place of
loading to the point(s) of destination, the cargo
compartment is thermostated, characterized in that
the cold accumulator is refilled with the cryoagent at
the place of loading the thermally unstable products
into the cargo compartment of the vehicle and, at
least partially, during such a loading.
2. The method of claim 1, characterized in that
low-boiling liquefied gas is used as the cryoagent.
3. The method of claim 2, characterized in that
liquid nitrogen is used as the cryoagent.
4. The method of claim 2, characterized in that
liquid carbon dioxide is used as the cryoagent.
5. The method of claim 1, characterized in that
at least one eutectic panel with channels for the
cryoagent is used as the cold accumulator of the vehicle.
6. The method of claim 5, characterized in that
the cold accumulator of the vehicle further
comprises a heat-insulated tank for the cryoagent.
7. A method for transportation of thermally
unstable products, the method comprising filling a
cold accumulator of a vehicle with a cryoagent,
loading the thermally unstable products into a cargo
compartment of the vehicle, running the loaded
vehicle from the place of loading to a point(s) of
destination and unloading the thermally unstable
products out of the cargo compartment of the vehicle
at the point(s) of destination, wherein at least at
the stage of running the loaded vehicle from the place
of loading to the point(s) of destination, the cargo
compartment is thermostated, characterized in that
the cold accumulator is refilled with the cryoagent at
at least one of the points of destination and, at
least partially, during unloading the thermally
unstable products out of the cargo compartment of the vehicle.
8. The method of claim 7, characterized in that
low-boiling liquefied gas is used as the cryoagent.
9. The method of claim 8, characterized in that
liquid nitrogen is used as the cryoagent.
10. The method of claim 8, characterized in that
liquid carbon dioxide is used as the cryoagent.
11. The method of claim 7, characterized in that
at least one eutectic panel with channels for the
cryoagent is used as the cold accumulator of the vehicle.
12. The method of claim 11, characterized in
that the cold accumulator of the vehicle further
comprises a heat-insulated tank for the cryoagent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UA201107834 | 2011-06-22 | ||
| UAA201107834 | 2011-06-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2012176075A2 true WO2012176075A2 (en) | 2012-12-27 |
| WO2012176075A3 WO2012176075A3 (en) | 2013-03-07 |
| WO2012176075A4 WO2012176075A4 (en) | 2013-05-30 |
Family
ID=46147524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2012/051555 WO2012176075A2 (en) | 2011-06-22 | 2012-03-30 | Methods for transportation of thermally unstable products |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2012176075A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3010754A1 (en) * | 2013-06-18 | 2016-04-27 | Thermo King Corporation | Hybrid temperature control system and method |
| EP3010755A1 (en) * | 2013-06-18 | 2016-04-27 | Thermo King Corporation | Eutectic device for a transport refrigeration system and methods for cooling and installing the eutectic device |
| US9688181B2 (en) | 2013-06-18 | 2017-06-27 | Thermo King Corporation | Control method for a hybrid refrigeration system |
| IT202000032666A1 (en) * | 2020-12-29 | 2022-06-29 | West Aircon Srl | INDEPENDENT REFRIGERATOR UNIT FOR THE REFRIGERATION OF FOODSTUFFS TRANSPORTED ON VEHICLES |
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| US3241329A (en) * | 1963-09-06 | 1966-03-22 | Chemetron Corp | Liquefied gas refrigeration system |
| US3487769A (en) * | 1965-04-26 | 1970-01-06 | Occidental Petroleum Corp | Apparatus for controlled admission of air to controlled atmosphere |
| GB9613421D0 (en) * | 1996-06-26 | 1996-08-28 | Boc Group Plc | Refrigerated Container |
| DE19858061A1 (en) * | 1998-12-16 | 2000-07-06 | Messer Griesheim Gmbh | Insulated container with fillable cooling module |
| US6345509B1 (en) * | 2000-01-21 | 2002-02-12 | Ukram Industries | Refrigeration of a food transport vehicle utilizing liquid nitrogen |
| DE102007015390A1 (en) * | 2007-03-28 | 2008-10-02 | Air Liquide Deutschland Gmbh | Method and device for cooling a cold room and refrigerated vehicle |
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2012
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| Title |
|---|
| None |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3010754A1 (en) * | 2013-06-18 | 2016-04-27 | Thermo King Corporation | Hybrid temperature control system and method |
| EP3010755A1 (en) * | 2013-06-18 | 2016-04-27 | Thermo King Corporation | Eutectic device for a transport refrigeration system and methods for cooling and installing the eutectic device |
| EP3010754A4 (en) * | 2013-06-18 | 2017-04-05 | Thermo King Corporation | Hybrid temperature control system and method |
| EP3010755A4 (en) * | 2013-06-18 | 2017-04-05 | Thermo King Corporation | Eutectic device for a transport refrigeration system and methods for cooling and installing the eutectic device |
| US9688181B2 (en) | 2013-06-18 | 2017-06-27 | Thermo King Corporation | Control method for a hybrid refrigeration system |
| US10351042B2 (en) | 2013-06-18 | 2019-07-16 | Thermo King Corporation | Hybrid temperature control system and method |
| IT202000032666A1 (en) * | 2020-12-29 | 2022-06-29 | West Aircon Srl | INDEPENDENT REFRIGERATOR UNIT FOR THE REFRIGERATION OF FOODSTUFFS TRANSPORTED ON VEHICLES |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012176075A3 (en) | 2013-03-07 |
| WO2012176075A4 (en) | 2013-05-30 |
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