EP2117995B1 - Unterirdische lagerungseinrichtung für speiseöl - Google Patents

Unterirdische lagerungseinrichtung für speiseöl Download PDF

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Publication number
EP2117995B1
EP2117995B1 EP08761888.0A EP08761888A EP2117995B1 EP 2117995 B1 EP2117995 B1 EP 2117995B1 EP 08761888 A EP08761888 A EP 08761888A EP 2117995 B1 EP2117995 B1 EP 2117995B1
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EP
European Patent Office
Prior art keywords
tank
oil
heating
filling
installation according
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Not-in-force
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EP08761888.0A
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English (en)
French (fr)
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EP2117995A1 (de
Inventor
Jean-Jacques Mulleris
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Merim Services SAS
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Merim Services SAS
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Publication of EP2117995A1 publication Critical patent/EP2117995A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/78—Arrangements of storage tanks, reservoirs or pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/80—Arrangements of heating or cooling devices for liquids to be transferred
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems

Definitions

  • the invention relates to the field of storage of edible oil.
  • the invention relates more particularly to an installation for storing food oil, for example recovered as recyclable waste.
  • a storage container such as, for example, a storage drum or a special container.
  • the patent EP 1 180 492 describes, for example, a used food oil recovery container.
  • a burial of a container for example, for the storage of edible oil, must be carried out according to technical constraints concerning, for example, heating means limiting heat losses or means for preventing leakage. liquid product stored.
  • the present invention aims to overcome one or more disadvantages of the prior art by creating an installation for storage of food oil to recycle whose structure allows to be buried and not apparent.
  • This objective is achieved through a storage facility for cooking oil according to claim 1.
  • the tank is surrounded by means of protection and sealing.
  • the tank rests on an insulating material surrounding the tank, the insulating material being disposed in abutment against a support material filling the underground volume, the support material flush with the ground surface.
  • the retaining material is crushed hard rock.
  • the isolation means comprise an air space surrounding the tank resting on feet, the underground volume being made by retaining walls of concrete or steel.
  • the retaining walls of steel or concrete are made with a determined thickness or a specific shape to withstand at least one determined pressure exerted vertically on the top of the retaining walls and corresponding to the weight of a motor vehicle.
  • the underground volume comprises a working zone disposed on a determined side of the tank, through which the heating means are accessible, an access passage by an operator, opening vertically from the ground, being carried out above from the work area.
  • a ventilation duct opens into the underground volume and to a ventilation device disposed above the ground.
  • a second object of the present invention is to make more secure the means for heating the oil during an evacuation of the oil stored in the tank.
  • the heating means comprise means for heating at least a portion of an outer wall of an outer wall of the tank.
  • the means for heating the outer wall of the tank comprise a sealed heating compartment having an outer partition disposed around the tank and having an inner partition made by the outer wall of the tank, the heating sealing compartment receiving a fluid heated and circulated by means for heating and driving the fluid.
  • the vessel is cylindrical.
  • the means for heating the outer wall of the tank comprise a coil glued around the outer wall of the tank, the coil receiving a heated fluid and circulated by heating means and driving the fluid, a cylindrical protective and sealing partition being arranged around the coil.
  • the heating means comprise at least one electrically powered heating resistive heating component by electrical supply means, the electric heating element being embedded in an electrically insulating and thermally conductive material.
  • the heating means comprise at least one heating tube or a coil disposed in the bottom of the tank, the heating tube or the coil receiving a fluid heated and circulated by heating means and fluid entrainment.
  • the tank is linked on the top to a closure and protection cap including, in its closed position, an opening communicating with the inside of the tank and at least one control device or a measuring device or a regulating device.
  • Another objective is to propose a solution for filling the tank by a manually controlled device in case of failure of the electric filling pump.
  • the filling device comprises an electric pump controlled by control means of the electric pump, a first and a second manually operated bypass valve being arranged upstream and respectively downstream of the electric pump to divert the filling oil by a manually activated pump and arranged in parallel with the electric pump.
  • the filling pipe and / or the evacuation pipe comprise heating means or thermal insulation means or a double sealing partition.
  • the edible oil is, for example, used in catering companies using, for example, appliances for frying.
  • a restaurant uses, for example, fryers including an oil bath, to make all kinds of fries.
  • the oil used for frying is changed, for example, after being used a certain number of times or after remaining a fixed time in a frying apparatus or when the oil includes too many impurities.
  • the used oil must then be recovered for recycling.
  • the oil intended to be recycled, must be stored as and when in a storage container.
  • a non-limiting example of the interior (30) of a building for the restoration, is represented in the figure 3 .
  • the oil is, for example, fed from frying apparatuses (21) by oil-carrying ducts (22) to a pump (1) sucking oil into ducts (22) connected to frying apparatus (21).
  • the oil is transported by a mobile tank for recovering the oil.
  • This bin comprises, for example, one or more oil filters and a container having sufficient capacity to contain the oil of one or more frying apparatus.
  • the movable tray is, for example, brought under a frying apparatus (21) to collect the oil contained in this apparatus, through a lower opening, the oil then flowing by gravity.
  • the mobile container is, for example, used to empty one or more devices of their oil, then the mobile container is fed to the pump (1) which sucks the oil into the container of the mobile container, the oil then being expelled by the conduit (41) for feeding the tank of the container (42) of oil storage.
  • the movable tray comprises, for example, a conduit opening into the bottom or near the bottom of its container, through which the pump sucks oil to recycle.
  • the pump (1) sucks oil spilled into an oil discharge tank.
  • the oil discharge tank is, for example, filled with oil from the mobile tank equipped with a pump, for example, manual.
  • the pump of the mobile tank sucks the oil into the container of the mobile container, to expel it through a conduit, such as for example a bent or flexible duct, directed downwards, above the drain pan.
  • the drain pan is filled directly by frying apparatus dumped above the drain pan.
  • the discharge tank is associated with one or more oil filters holding impurities, by filtering grids.
  • the pump (1) sucks, for example, the oil to be recycled, to expel it through a conduit (41) for feeding a tank of a container (42) for storing the oil.
  • the oil transport pipes arranged between a frying apparatus (21) and the pump, are heated by heating means.
  • the conduit (41) for feeding the tank of the container (42) is also heated by heating means.
  • the container (42) comprises, for example, a metal tank associated with a duct (421) for connection to the supply duct (41) and associated with a duct (424) for connection to a duct (44) for emptying.
  • the tank comprises on the top a cover (426) for closing and protection.
  • This cover (426), open during access to the tank, includes, for example, an access opening inside the tank, closed in a non-limiting manner by a cover (423) sealing.
  • the sealing cover (423) is integral or independent of the cover (426) protection.
  • the cover (426) of protection also includes, without limitation, connection devices, for example, with sensors (C1, C2) arranged in the tank.
  • the cover (426) is integral with connection elements of the sensors (C1, C2) inside the vessel and / or with at least one connecting conduit (421) for filling the vessel and / or with a connection duct (424) for emptying the tank and / or with support and connection elements of a heating device (600) inside the tank.
  • the entire hood (426) is removed to access the elements arranged in the tank, releasing at the same time, the access opening to the interior of the tank, such as a manhole .
  • the hood (426) closing and protection is accessed directly at ground level or by removing a hatch (541) access to a passage (521) vertical access to the hood (426).
  • cover (426) of protection includes, for example, control devices or measurement, connected with sensors, providing output signals representative of measurements or control variables.
  • a control or measurement device provides, for example, signals representative of the oil level or the temperature or warning signals of exceeding a given level of stored oil.
  • the protective cover includes, for example, control devices.
  • a regulation device supplied with energy by supply means, delivers, for example, heating energy as a function of means for measuring a predetermined temperature.
  • the supply of heating energy is carried out in all or nothing or proportionally, by the control device.
  • the hood (426) of protection is accessible by an operator, directly at ground level or by the passage (521) vertical opening out of the ground or from a space (53) underground working.
  • the vertical passage (521) is, for example, closed by a trap (541) for inspection, the inspection hatch (541) being placed in a recess for flush with the surface of the ground.
  • the conduits (41, 44) for supply and discharge between the pump and the buried tank are entirely or partially underground.
  • the example of figure 1 represents, in a nonlimiting manner, supply and discharge conduits in which the oil flows.
  • the supply or discharge ducts circulate, for example, in a conduit (52) underground to open, for example, in a building or in a space including a connection (441) for emptying.
  • the underground pipes in which the oil circulates comprise a double partition, for example, to ensure sealing.
  • Insulation means are arranged, without limitation, around these underground heated ducts to prevent heat loss.
  • the insulation means comprise for example an air gap in a double wall or comprise an insulating material surrounding the heated ducts. The heating and insulation of the oil circulation ducts, in particular to prevent the oil from congealing in the ducts.
  • connection (441) with the drain duct is disposed above the storage tank.
  • the drain duct (44) is then disposed vertically, which prevents the oil from congealing in the duct, by gravitation, without heating or isolation of the drain duct (44).
  • the pump (1) for feeding the tank of the storage container is triggered automatically or by a user.
  • the pump is, for example, powered by an electric power circuit (101) controlled by a control device (1000).
  • the electrical power circuit (101) controls, for example, a motor of the pump (1).
  • the electrical control circuit (101) and the pump (1) are remote from the buried tank and are, for example, arranged in a building so as to be accessible by a user.
  • the heating is controlled, in a nonlimiting manner, by the control device (1000) which comprises processing means, management means and storage means, such as, for example, a controller associated with a control panel or an intelligent electronic circuit for testing or controlling a power circuit (7) for supplying the heating means, as shown in FIG. figure 6 .
  • the power circuit (7) feeds, for example, the means (600) of electric heating, by a cable (71) electrical underground passing, without limitation, parallel to the conduit (41) supply.
  • the heating means comprise a device (1001) for heating and driving a fluid, the heated fluid passing close to the oil stored in the tank, for heating the oil stored before evacuation, as shown in figure 1 .
  • the device (1001) for heating and driving the fluid operates independently or is controlled by the control device (1000).
  • the storage facility with its buried tank also includes, but not limited to, sensors (C1, C2) for the control of, for example, the temperature of the oil or the level of the oil.
  • sensors C1, C2
  • a plurality of oil presence sensors are, for example, disposed in the tank of the container, at different heights, to provide signals representative of the oil height in the tank.
  • These presence sensors are, for example, either in a state representative of immersion in liquid or frozen oil, or in a state representative of a non-submerged position.
  • bimetallic sensors are used, the presence of oil between the two blades making an electrical connection between the two blades, indicating the presence of oil.
  • the sensor is, for example, equivalent to an open switch if the sensor is not immersed.
  • a pair (LC1, LC2) of electrical wires connects, for example, each sensor (C1, C2) with the control device (1000) which performs, without limitation, a resistivity test at the terminals of the bimetallic sensors.
  • the electrical wires (LC1, LC2) connecting the sensors arranged in the tank or around the tank follow, for example, the conduit (41) for supplying oil to the interior (30) of the building and then are connected to the control device (1000).
  • one or more temperature sensors are also arranged in the tank or around the tank.
  • the oil presence sensors are arranged at determined heights to control corresponding determined levels of the oil in the tank, to produce, for example, signals representative of the oil levels reached or not.
  • a presence sensor disposed at a given height is for example controlled to determine if the oil has reached the height of the sensor. If the oil level is below the height of this sensor, the sensor controlled by the control device (1000) returns a signal representative of a non-immersed state. The control device (1000) then determines, by its processing means, that at least the storage space in the tank, above the sensor, is available to store additional oil.
  • the control device (1000) determines, by its processing means, that the determined level of the sensor is reached or exceeded by the oil level in the tank.
  • the control device (1000) can then trigger a determined alarm representative of the oil level in the tank. Without limitation, this alarm triggers the planning of a drain, for example, if the storage margin is low but allows, for example, normal operation for a few days.
  • Another sensor makes it possible, for example, to determine that the oil has reached the maximum level of storage in the tank, that is to say that the storage tank is full and that the emptying must be carried out urgently, before continuing to fill the tank.
  • Another sensor is for example representative of a low or intermediate oil level.
  • the oil presence sensors are, for example, arranged at different heights, to detect the levels, reached by the oil, used by the control circuit processing means.
  • the presence sensors are, for example, arranged at regular intervals to produce signals representative of the quantified level of oil in the tank where the sensors are mostly at low intervals at sensitive heights, such as oil levels near the maximum level in the tank.
  • a bimetallic sensor which is either in an on state or in an open state, may be tested by the control device (1000) or a portable continuity tester.
  • the control device (1000) or a portable continuity tester may be tested in case of power failure the oil level in the tank.
  • a bypass circuit (11, 12, 13) of the automatic pump (1) is advantageously provided in the event of a power failure or in the event of failure of the automatic pump, as shown in FIG. figure 6 .
  • This bypass circuit comprises, for example, a pump (11) manual, parallel to the pump (1) automatic, for injecting the oil through the conduit (41) for supply in the buried tank.
  • the buried tank is, in fact, disposed at a level below the level of the pump and the pumping force is therefore small.
  • Switching valves (12) arranged upstream and downstream of the electric pump make it possible, for example, to deflect the flow of oil through branch lines (13).
  • the deflected oil flow is, for example, sucked to the pump (11) manually, so that the oil is expelled by the pump (11) manual in the conduit (41) for feeding the tank.
  • These two switching valves (12) are, for example, manual valves used in case of power failure or in case of failure of the pump.
  • the opening or closing of the conduit (41) for feeding the tank is controlled by a discharge valve (14) to prevent the overflow of the tank.
  • the discharge valve (14) is, for example, controlled in position by an electric power circuit (15) controlled by the control device (1000).
  • a link (151) between the discharge valve (14) and its power circuit (15) transmits, for example, a strong control current of the valve (14).
  • the control device (1000) sends, for example, a signal opening or closing the discharge valve (14) to the valve positioning power circuit (15).
  • a closing signal of the discharge valve is, for example, produced when a level sensor in a state representative of a level close to the overflow is detected.
  • the discharge valve (14) is disposed on the container or in a specific housing, such as for example the hood (426) above the container, or inside the building. The filling is thus secured to prevent overflow. Closing the discharge valve (14) causes, for example, a blockage of the pump (1) which then stops automatically.
  • the discharge valve (14) is controlled by a hydraulic or mechanical control device, actuated by the operator, to prevent or allow the filling of the tank.
  • the vessel has a cylindrical shape and is disposed with its horizontal axis flat on a solid insulating material (8).
  • the solid insulating material (8) is, for example, expanded polystyrene, also called EPS, with a mechanically resistant internal structure.
  • the insulating solid material (8) surrounds, for example, the tank and has, for example, a determined minimum thickness.
  • the support means comprise, for example, a filling material (9) for supporting the insulating material (8), the filling material (9) being, for example, ground or crushed and calibrated hard rock.
  • the filling material (9) is, for example, similar to ballast.
  • a technical constraint of a buried tank for storing food oil relates to its heating. Indeed the containers for cooking oil have low storage capacity.
  • a tank of a container for cooking oil may have a capacity of between 500 and 3000 liters.
  • the capacity of a food oil container implies that when the tank is buried, the wall external of the tank has a large area relative to the volume to be heated.
  • the larger the volume of the tank the greater the ratio between the volume and the surface of the wall of the tank. That is, the larger the volume, the more negligible the heat loss through the outer wall of the vessel.
  • the loss capacity through the outer wall of the tank is important, compared to the volume to be heated. This is why means (8) of thermal insulation are arranged around the tank.
  • Another constraint concerning the buried tanks relates to the prevention of leakage of liquid product escaping from the tank, into the ground.
  • a double wall (425, 4251) surrounds the outer wall of the tank.
  • drain lines (91) are, for example, made below the housing volume of the tank. Drainage lines (91), for example, carry runoff water to a runoff collection well.
  • a duct (521) is for example made, above the tank, to access the tank.
  • An access above the tank is advantageously made to access, for example, an opening in the top of the tank communicating with the interior of the tank.
  • the opening is, for example, sealed by a cover (423) or by the cover (426) secured to the elements arranged in the vessel.
  • Access to the interior of the tank allows the cleaning of the tank, the positioning of temperature sensors or the presence of oil or, without limitation, the positioning in the tank. bottom of the tank and parallel to the bottom, one or more resistors (600) or heating fingers immersed in the stored oil.
  • the immersed heating fingers are, for example, heating resistive electrical elements or tubular elements in which circulates a heated fluid.
  • the heating elements arranged in the bottom of the tank, in particular allow to heat all the stored oil, without creating a cold zone.
  • the access duct (521) for example has metal partitions which are fixed to the tank to surround at least its supply connection (421), its drain connection (424) and the access opening to the tank. inside the tank. Without limitation, the elements disposed on the top of the tank, accessible through the access duct, are protected by the cover (426) protection.
  • the protective cover includes, but is not limited to, slots for passage of oil or heated fluid flow conduits or for communication link passage.
  • a sensor (C1) for detecting the oil level is, for example, disposed in the tank and communicates via a line (LC1) communicating with the control device (1000).
  • a power circuit (7) supplies, for example, the heating resistor (s) (600) disposed in the bottom of the tank to heat the oil before it is discharged, as described in the patent.
  • EP 1 180 492 the access duct, at the vertical of the tank, includes the discharge valve (14) fixed on the top of the tank.
  • the storage installation comprises one or more heating resistors (600) disposed in the bottom of the tank and fed by a circuit (7) power supply resistors.
  • This circuit (7) power supply of the resistors is, for example, controlled by the device (1000) control.
  • the control device (1000) is, for example, connected by an electrical connection (LC2) to a presence sensor (C2) disposed in the tank at a determined height corresponding to the minimum oil level for which the or the resistors (600) arranged in the bottom, are covered with oil.
  • the detection, by the control device (1000), of the covering of this presence sensor (C2) then makes it possible to trigger the heating of the stored oil, for its evacuation, as described in the patent EP 1 180 492 .
  • the tank comprises means for heating the outer wall of the tank.
  • the cylindrical container comprises, for example, a double wall (425, 4251) forming a volume (V1) peripheral to the tank, in which circulates a heated fluid.
  • a second partition (4251) is disposed around the partition (425) of the vessel. Supporting elements and sealing elements connect, for example, the heated partition (425) of the tank and the second partition (4251).
  • the peripheral volume (V1) being surrounded by an insulating material (8), the heating energy of the heated fluid is mainly transmitted to the tank and to the oil contained in the tank.
  • the heated fluid circulates, for example, under the action of a device (1001) for driving and heating, such as a boiler, communicating with the peripheral heating volume by two heating ducts connected to the tank.
  • a device for driving and heating the circulating fluid close to the stored oil for example, is arranged in a building or in an underground space, for example in the vertical passage (521) of access to the top of the tank.
  • the heated fluid is liquid or gaseous.
  • the heating of the outside of the wall of a partition (425) of the tank makes it possible to heat the oil by a surface of determined width, the heating energy thus diffusing in the partition of the tank.
  • the heated partitions of the tank are in particular made of a thermally conductive material, such as metal. This distribution of the heating energy makes it possible in particular to avoid having a point overheating, as on the resistors arranged in the tank. A point overheating on a resistor disposed in the tank can indeed be dangerous and possibly start an ignition of the oil.
  • the control of the resistances arranged in the tank is notably realized to prevent the occurrence of a dangerous overheating point.
  • a minimum level of oil is, in particular required, in the case of resistors arranged in the tank, to cover the resistances and avoid, for example, a beginning of ignition or carbonization of the resistors.
  • the external heating of an outer wall of the tank of the container makes it possible to heat by a determined large area, avoiding any risk of fire or charring. In particular the heating from the outside of the tank of the container, does not require a minimum level of oil contained in the tank.
  • Heating from the outside of the tank can therefore be activated, whatever the level of oil in the tank.
  • the risk of starting a fire and the risk of deterioration of the heating elements are avoided.
  • a drain of the tank can be performed regardless of the oil level, which avoids, for example, to keep a bottom of oil in the tank, without being able to evacuate, in the case where the container is no longer used for a fixed period. Oil stored too long has a tendency to deteriorate, becoming unsuitable for recycling or degrading in quality.
  • the second partition (4251) disposed around the partition (425) delimiting the interior volume of the tank allows for a peripheral volume (V1) for heating around the tank and also allows for a safety partition preventing an oil leak in the soil.
  • V1 peripheral volume
  • a safety partition preventing an oil leak in the soil.
  • an oil leakage from the inside of the tank into the peripheral heating volume is detected by means for detecting a change in the chemical composition of the heating fluid.
  • a leakage of the peripheral heating volume towards the earths surrounding the tank is detected by means of detecting a loss of heating fluid.
  • the coil is, for example, placed in a cylinder device to the tank, including the coil, for the protection of the coil and to realize the double bulkhead of the tank.
  • the filling material (9) for the support is flush with the surface of the ground above the tank.
  • the tank communicates via one or more conduits (521) opening above the tank and / or an underground passage is arranged to provide a passage (51) for communication with the tank, opening into a building.
  • the passage (521) opening to the vertical of the tank is for example blocked by the hatch (541) of protection.
  • the hatch (541) of protection is, for example, removed to allow operators to access the upper opening of the tank during maintenance or cleaning operations.
  • the access to the tank is thus performed by an operator lying on the ground, in the vertical of the tank.
  • the figure 3 represents a non-limiting example of installation according to the invention used, for example, for the restoration.
  • the pump (1) is, for example, disposed inside (30) of a building, as well as the apparatus (21) frying.
  • a passage (311) is for example made in a wall (31) of the building, to communicate through this passage (311), the inside and outside of the building.
  • the passage (331) in the wall (31) is, for example, made with a diameter of section between 100mm and 300mm or with a diameter allowing the passage of one or more conduits or one or more cables.
  • the passage (311) in the wall (31) is arranged, for example, near the pump (1) and opens, without limitation, in a control space comprising a higher access access, also called room (51). ) of draw.
  • the draft chamber (51) disposed outside the building includes, for example, an upper flap (511) which can be removed to access the interior of the draft chamber (51), for example, for operations or maintenance checks.
  • An underground passage (52) opens for example, on one side in an underground volume receiving the container (42) or in a passage (521) for access to the vertical of the tank and the other in the chamber (51). ) of draw.
  • the underground passage communicating with the storage container (42) is, for example, made by an inner diameter sheath, for example between 100 mm and 300 mm or a diameter allowing the passage of one or more ducts or one or more cables.
  • the sheath is for example a plastic tube, for example reinforced, with a wall of specified thickness and strength.
  • the conduit (41) for supplying the tank of the container (42), connected, in a nonlimiting manner, to the discharge outlet of the pump (1) passes, for example through the passage (311) made in the wall ( 31) to then move into the draft chamber (51).
  • the duct (41) supplying the tank, passing through the chamber (51) of draft can thus be controlled by an operator during a maintenance operation.
  • the duct (41) feeding the tank extends from the chamber (51) of withdrawal out through the passage (52) underground communication with the container (42) communicating directly with the container or opening into the passage (521 ) access to the vertical of the container.
  • the conduit (41) for feeding the tank is thus extended to the connection (421) for feeding the tank.
  • the underground conduit (52) communicating directly with the container or opening into the conduit (521) for vertical access to the container opens on the other hand, directly inside (30). of the building in which the pump (1) is installed, as shown in figure 6 .
  • the buried container allows, for example, to have an aesthetic storage facility, to clear a space in the catering business or outside the company.
  • this type of container was indeed placed in a building or next to a building.
  • space cleared outside the building allows, for example, to create circulation zones, on foot or by car, above the tank or above an underground passage connecting the interior ( 30) of the building and the container (42).
  • the container or conduits of Underground communications are, for example, arranged under a traffic lane (33) for automobiles or under a sidewalk (32), alongside a restaurant to allow an express food service in which the motorists are served directly in their car.
  • an underground volume receiving the container (42) is delimited by means of support, made by metal or concrete partitions, to withstand the pressure exerted by the earth or vehicles.
  • An underground vault is thus made to house a container.
  • An example of a storage container is, for example, described, without limitation, in the patent EP 1 180 492 .
  • the underground vault surrounds the underground volume by at least side walls and a floor sealed. In this way, the vault prevents a flow of cooking oil escaping from the tank and polluting the surrounding soil.
  • Oil leak detection means comprise, for example, oil sensors arranged against an outer wall of the tank or on the floor of the vault.
  • Metal partitions of the vault are, for example, treated anti-corrosion or associated with a corrosion protection material.
  • the metal partitions are ribbed to withstand the mechanical pressures exerted on the structure in which the container is stored.
  • the retaining means are arranged around insulation means made, for example, by an air knife with a minimum thickness determined.
  • the insulation means make it possible in particular to achieve thermal insulation of the tank and also, without limitation, to protect the tank against runoff.
  • the tank is, in fact, kept elevated to protect the tank against corrosion caused by runoff water.
  • the runoff water is, on the other hand, discharged by means for discharging the runoff water, such as, for example, means for pumping runoff water activated by means for detecting the water of the water. runoff.
  • the underground volume receiving the container (42) is in communication through one or more underground passages opening into the interior or exterior of a building or into an accessible space from inside or outside of the building.
  • the support means are, for example, a floor (532) and concrete walls (531) forming walls surrounding the underground volume.
  • the concrete or steel walls are, for example, made with a thickness determined to withstand the lateral pressure exerted by the earth or to withstand the pressure exerted vertically by vehicles passing over a track above the volume in which the container is housed. Without limitation, the thickness of the concrete walls is, for example, between 10cm and 30cm.
  • the set of walls and floor, steel or concrete thus form a rigid structure resistant to the thrust of the ground or a vertical pressure exerted by a path (33) of circulation.
  • the housing volume of the container (42) is included, for example, without limitation, in an underground vault, for example rectangular parallelepiped, in which is disposed the container (42).
  • the vault in which the container is disposed has dimensions at least greater than those of the container (42).
  • the container rests, for example, on the floor (532) by feet (422) of elevation of the tank.
  • the tank is for example, also parallelepipedic, an insulation air space surrounding the tank.
  • a minimum distance between the outer walls of the tank and the inner walls of the underground vault, for example, is made to have a minimum thickness of the insulating air layer around the tank.
  • the feet (422) of the container (42) have, for example, a minimum height greater than or equal to the minimum thickness of the insulating air layer.
  • the parallelepipedal volume in which the container is disposed is also made with determined dimensions, so as to leave a minimum layer of air around the tank.
  • a container with a tank of capacity equal to about 1500 liters, placed on feet can occupy a space with a height (H42) of 1.70 m, a width (LA42) of 0.9m and a length (LN42) of 1.5m.
  • the parallelepipedal volume, in which the container (42) is disposed is, for example, made in a nonlimiting manner, with a height (H53) of at least 2.45m, a width (LA53) of at least 0.9m and a minimum length (LN53) of 2.6m in the case of a plunging internal resistance heating or a minimum length (LN53) of 2.2m in the case of an external hotplate heating.
  • the parallelepipedal volume in which the tank is arranged allows one hand to leave an insulating air space around the tank and secondly, a working space (53) is arranged laterally next to the tank. , to allow an operator to carry out maintenance operations.
  • the parallelepipedal volume is extended, in a nonlimiting manner, in length or width to achieve the additional space (53) of work.
  • the working space (53) is arranged in front of one or more openings made in the lower part of the tank, for the insertion of heating resistive elements, as described in the patent. EP 1 180 492 these openings being, for example, made in a plate disposed in the width of the tank.
  • the prolongation in length of the underground volume, in front of the plate arranged in width comprising the openings for the passage of the heating resistances, allows the manipulation of the new resistances inserted in the tank, during a maintenance operation.
  • the space (53) of work is indeed achieved by an extension of at least the length of the resistors to allow their manipulation.
  • an extension in width of the volume of the vault accommodating the tank is likewise done in front of a plate of the tank arranged in length, in which openings for the passage of heating resistors, are realized .
  • the heating of the oil is carried out by a heating device outside the wall delimiting the tank of the container, such as heating plates arranged against two opposite lateral sides of the tank.
  • These hotplates are, for example, pressed against the side walls of the tank comprising the oil, by rigid plates (61) pivoting.
  • These plates (61) pivoting in the loose position allow, for example, to change the plates (64) heating.
  • the working space (53) is made in the extension of one side of the tank allowing lateral access to these two opposite sides of the tank during maintenance operations.
  • the heated plates (64) in particular make it possible to reduce the working space relative to the heating by the heating resistances, also called heating fingers.
  • the tank is equipped on one, two or three sides of heating plates (64) pressed against a partition of the oil storage tank.
  • the underground working space (53) is then made, as an extension of the width or the length of the underground vault, so that the lateral side of the tank, opposite the working space, is not equipped with a hot plate pressed against a partition (425) delimiting the storage volume of the tank.
  • This arrangement of the working space (53) makes it possible to minimize the underground volume, so as to minimize the construction costs.
  • the working space (53) for changing the heating plates is smaller than the working space for the resistors. Flexible heating plates are easier to handle and less cumbersome.
  • the working space is made by an extension in length and width to give access from the front or side to each side of the tank.
  • An access passageway (54) allowing the passage of a man is arranged, for example, above the working space (53) to allow an operator to descend into the working space (53). next to the container, for maintenance operations.
  • This passage (54) for access to the working space (53) is, for example, a vertical cylindrical passage opening on the outside, above the working space.
  • the passage (54) for access to the work space is, for example, closed by the access hatch (541), as for example a round plate disposed in a recess, bearing on the edges of the passage (54) access.
  • a metal ladder is disposed in the passage (54) for access to the working space (53) and goes down to the floor of the vault receiving the tank.
  • the height (HA53) of the parallelepiped receiving container is also made to keep a minimum maneuvering height, above the container.
  • the height of the vault receiving the container (42) is greater than the height of the container by at least a certain margin to achieve the insulation air space above and below the tank and to leave above the tank, a minimum working height.
  • the minimum working height, above the tank allows, for example to access the inside of the tank through its upper opening or to fix the discharge valve on the top of the tank.
  • the container (42) comprises, for example, its opening on the top, also called a manhole, in particular for maintenance or cleaning of elements mounted inside the tank or the cleaning of the tank.
  • the opening, as described in the patent EP 1 180 492 is closed, for example, by a cover to prevent pollution of the oil.
  • a connector housing (428) is, for example, arranged against a side edge of the container (42) facing the working space (53).
  • this housing (428) connection comprises connection elements with sensors disposed in the vessel and / or connection elements with heating elements disposed in the vessel.
  • Exhaust water discharge means comprise, for example, a liquid presence detection sensor disposed on the floor (532) of the vault receiving the container (42).
  • This sensor is, for example, associated with means for triggering the pumping, by means of pumping water through a suction pipe opening near the floor (532) or in a lower part of the underground vault.
  • the pumping means evacuate, for example, the water to an evacuation circuit or to a pit for the evacuation of water.
  • a water evacuation pipe and an electrical connection with the sensor pass through the underground passage (52) in which the supply duct (41) passes, to the pumping release means and to the pumping means.
  • the tank remains in a dry space allowing insulation by the air space surrounding the tank.
  • the heating of the tank, by its heating means, is controlled, for example, when the tank is emptied, by its connection (424) drain.
  • the tank feed connection (421) opens into the top of the tank interior and the drain connection (424) is extended to open at the bottom of the tank interior.
  • the drain connection (424) is, for example, connected to a drain line (44) passing, in a non-limiting manner, through an underground passage (52, 56) to an accessible drain connection (441). from the outside.
  • the drain duct (44) passes, for example, through the same underground passage (51) as the supply duct (41), this underground passage (51) connecting the container (42) to the draft chamber (51). .
  • the plug or the connection (441) to which the drain duct (44) is connected is for example arranged, without limitation, in the draft chamber (51).
  • a tank connects, for example, on this connection (441) to suck oil from the tank.
  • This connection is, for example, non-standard, to promote the traceability of the recycled oil.
  • an additional passage (56) for the passage of the drain duct (44) is provided.
  • This passage for the drain conduit (44) communicates, on the one hand with the container (42) and on the other hand with the drain plug (441) disposed in a space (562) accessible from the outside, to be connected to a tank during the recovery of the oil from the tank.
  • a removable flap (561) closes, for example, the space (562) accommodating the drain plug (441), also known as the drain connection.
  • a ventilation passage (55) opens into a vault accommodating the container and connects the interior of the underground vault to a ventilation device (551) disposed outside, above the ground.
  • the ventilation device (551) is, for example, designed to create a ventilation air stream of the underground volume.
  • the heating from the outside of the tank allows to heat by a determined large area, avoiding a fire start or charring.
  • Heating the outside of the tank for example is achieved by plates (64) flexible heating pressed against a partition (425) of the tank.
  • These flexible heating plates (64) are, for example, plates made of an electrically insulating but thermally conductive flexible material, in which resistive electric heating elements are embedded.
  • the flexible plates pressed against the wall (425) of the tank allow to follow the shape of the outer wall of the tank, the contact surface and the heat transfer is thus optimized.
  • these heating plates are self-regulating and fed all or nothing.
  • a tank is, for example, equipped with one or more heating plates each with a power of, for example, between 100W and 10kW.
  • the surface heating plates of about 1 square meter for example comprise a thermally conductive flexible material, based for example on silicone or a polymer.
  • a reinforcement bar (66) is placed in the tank of the container (42) on a partition against which a hot plate (64) is pressed.
  • the reinforcing bar (66) is, for example, welded to the partition to allow the partition (425) of the tank to keep its shape.
  • the heating plates are indeed plated by pressure means attached to the container and exerting forces on the tank can deform the partition (425) heated.
  • the reinforcement bar (66) is for example of round, square or rectangular section.
  • the means for pressing the heating plate against an outer wall of the tank comprise, for example, a rigid support plate (61) pivoting about a hinge (62) attached to the tank.
  • the plate (61) rigid support pivots around its hinge (62), the plate (61) rigid being spaced from the outer wall of the tank, for example, to replace the plate (64) flexible heating.
  • the rigid clamping plate (61) is, for example, pivoted towards the heated partition (425) to press an insulating plate (63) against the flexible heating plate (64), the heating plate (64) being then pressed between the plate (63) and the partition (425) of the tank.
  • the rigid plate (61) is, for example, held in its position, in which the heating plate (64) is pressed against the partition (425) of the tank, by one or more hooks (65) for holding the plate ( 61) rigid.
  • the hooks (65) for holding the rigid plate (61) are, for example, arranged against an edge of the rigid support plate (61) opposite the hinge.
  • the rigid plate (61) for support and the plate (63) insulating for example have a surface greater than or equal to the surface of the plate (64) flexible heating.
  • the rigid support plate (61) and the insulation plate (63) follow, for example, the same profile identical to the profile of the heated partition disposed opposite.
  • the flexible heating plate (64) is optimally plated against the heated partition (425).
  • the face of the heated flexible plate (64), disposed opposite the tank being pressed by an insulating material (63) the heating energy released by the flexible heating plate is transmitted, for the most part, at the partition (425).
  • the rigid clamping plate (61) is made so as to leave at least one edge of the plate (64) apparent heating flexible, to allow the passage of son (71) electric supply.
  • These electrical supply wires (71) connect, for example, the flexible heating plate (64) to the electrical power circuit (7) supplying the electric heating energy.
  • the plate or plates (64) flexible heating are each arranged against a lateral outer wall of the tank or against the bottom wall of the tank.
  • the flexible heating plates (64) are arranged partly in the bottom of the tank, to heat at least the bottom of the tank.
  • this type of buried tank comprises several connecting ducts (421) for the oil supply to be stored, so as to be connected to several filling ducts (41) coming from several installations.
  • the installations using the storage tank are arranged in the same building or in different buildings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Frying-Pans Or Fryers (AREA)

Claims (13)

  1. Anlage zum Lagern von Speiseöl, die Folgendes umfasst:
    eine geschlossene Wanne mit einem bestimmten Volumen, wenigstens einen Füllkanal (421) geeignet zum Leiten des Öls in die Wanne, wenigstens einen Ablasskanal (424) geeignet zum Ablassen des in dieser Wanne gelagerten Öls, Mittel zum Erhitzen des gelagerten Öls vor dem Ablassen, geeignet zum Erhitzen dieser Wanne, ein Ablassrohr (44), eine Verzweigungsvorrichtung (441), eine Vorrichtung zum Füllen mit dem Öl, ein Füllrohr (41), eine Vorrichtung (1) zum Füllen mit dem Öl, ein unterirdisches Volumen zum Aufnehmen der Wanne, wobei der Ablasskanal (424) über das Ablassrohr (44) mit der Verzweigungsvorrichtung (441) zum Ablassen des in der Wanne enthaltenen Öls in Verbindung ist, wobei der Füllkanal (421) über das Füllrohr (41) mit der Vorrichtung (1) zum Füllen mit dem Öl in Verbindung ist,
    wobei die vergrabene Wanne in dem unterirdischen Volumen zum Aufnehmen der Wanne angeordnet ist,
    dadurch gekennzeichnet, dass
    die Heizmittel Mittel zum Aufheizen wenigstens eines Teils einer Auffenwand eines Außenschotts der Wanne durch wenigstens eine dichte Heizkammer (V1) umfassen, mit einem Außenschott, das um die Wanne herum angeordnet ist, und mit einem Innenschott, das durch das Außenschott der Wanne realisiert wird,
    die dichte Heizkammer (V1) ein Fluid aufnehmen kann, das von Fluidheiz- und Mitführungsmitteln (1001) erhitzt und in Umlauf gebracht wird.
  2. Lageranlage nach Anspruch 1, dadurch gekennzeichnet, dass Wärmeisolationsmittel (8) um die Wanne herum angeordnet sind, Stützmittel (9, 531, 532) um die Wärmeisolationsmittel herum angeordnet sind, wobei wenigstens ein unterirdischer Kanal (52) für die Passage des Füllrohrs (41) mit der Wanne in Verbindung ist.
  3. Lageranlage nach Anspruch 2, dadurch gekennzeichnet, dass die Wanne an einem die Wanne umgebenden Isoliermaterial (8) anliegt, wobei das Isoliermaterial (8) an einem Stützmaterial (9) anliegt, das das unterirdische Volumen füllt, wobei das Stützmaterial mit der Oberfläche des Bodens bündig ist.
  4. Lageranlage nach Anspruch 3, dadurch gekennzeichnet, dass das Stützmaterial (9) aus hartem Schotter besteht.
  5. Lageranlage nach Anspruch 2, dadurch gekennzeichnet, dass die Isoliermittel eine Luftschicht umfassen, die die Füße der Wanne (422) umgibt, wobei das unterirdische Volumen durch Stützschotts (531) aus Beton oder aus Stahl realisiert ist.
  6. Lageranlage nach Anspruch 5, dadurch gekennzeichnet, dass die Stützschotts (531) aus Stahl oder aus Beton mit einer bestimmten Dicke oder einer bestimmten Form realisiert werden, so dass sie wenigstens einen bestimmten Druck aushalten, der vertikal auf die Oberseite der Stützschotts wirkt und dem Gewicht eines Fahrzeugs entspricht.
  7. Lageranlage nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass das unterirdische Volumen eine Arbeitszone (35) umfasst, die auf einer bestimmten Seite der Wanne angeordnet ist, durch die die Heizmittel zugängig sind, wobei eine Zugangspassage (54) durch einen Bediener, die vertikal zum Boden öffnet, über der Arbeitszone realisiert ist.
  8. Lageranlage nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass ein Ventilationskanal (55) im unterirdischen Volumen mündet und bis zu einer über dem Boden angeordnete Ventilationsvorrichtung (551) verlauft.
  9. Lageranlage nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Wanne zylindrisch ist.
  10. Lageranlage nach Anspruch 9, dadurch gekennzeichnet, dass die Mittel zum Heizen der Außenwand der Wanne eine Schlange umfassen, die um das Außenschott der Wanne geklebt ist, wobei die Schlange das erhitzte und in Umlauf gebrachte Fluid aufnimmt, wobei das Abdichtungsschott um die Schlange herum angeordnet ist.
  11. Lageranlage nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Wanne am oberen Ende mit einer Verschluss- und Schutzkappe (426) verbunden ist, die in ihrer geschlossenen Position eine Öffnung umgibt, die mit dem Innern der Wanne und wenigstens einer Vorrichtung zum Überwachen des Pegels oder der Temperatur des Öls oder einer Vorrichtung zum Messen des Pegels oder der Temperatur des Öls oder einer Vorrichtung zum Regeln der Temperatur des Öls in Verbindung ist.
  12. Lageranlage nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Füllvorrichtung (1) eine elektrischen Pumpe umfasst, die mit Mitteln zum Steuern der elektrischen Pumpe (1) gesteuert wird, wobei ein erstes bzw. ein zweites Entnahmeventil (12), manuell aktiviert, oberhalb bzw. unterhalb der elektrischen Pumpe angeordnet ist, um das Füllöl durch eine manuell aktivierte Pumpe (11) umzuleiten, die parallel zu der elektrischen Pumpe (1) angeordnet ist.
  13. Lageranlage nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass das Füllrohr (41) und/oder das Ablassrohr (44) Heizmittel oder Wärmeisolationsmittel oder ein doppeltes Abdichtungsschott umfasst/umfassen.
EP08761888.0A 2007-02-14 2008-02-14 Unterirdische lagerungseinrichtung für speiseöl Not-in-force EP2117995B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0701071A FR2912386B1 (fr) 2007-02-14 2007-02-14 Installation souterraine de stockage d'huile alimentaire
PCT/FR2008/000192 WO2008116988A1 (fr) 2007-02-14 2008-02-14 Installation souterraine de stockage d'huile alimentaire

Publications (2)

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EP2117995A1 EP2117995A1 (de) 2009-11-18
EP2117995B1 true EP2117995B1 (de) 2015-06-17

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Publication number Priority date Publication date Assignee Title
FR2912395B1 (fr) * 2007-02-14 2011-09-09 Atuser Dispositif de chauffage d'un conteneur de stockage de recuperation d'huile alimentaire
FR2935136B1 (fr) * 2008-08-21 2014-06-06 Atuser Conteneur de recuperation de liquides usages
EP2597215A4 (de) * 2010-07-22 2014-10-08 Leandro Carlos De Andrade System zum sammeln von speiseöl und ölhaltigen substanzen für recycling-zwecke
CN105417486A (zh) * 2015-12-09 2016-03-23 江阴市富仁高科股份有限公司 加油机加热装置

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Publication number Publication date
FR2912386B1 (fr) 2011-12-09
EP2117995A1 (de) 2009-11-18
WO2008116988A1 (fr) 2008-10-02
FR2912386A1 (fr) 2008-08-15

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