EP3332098B1 - Récipient pour circuit d'utilisation de chaleur perdue - Google Patents

Récipient pour circuit d'utilisation de chaleur perdue Download PDF

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Publication number
EP3332098B1
EP3332098B1 EP16751229.2A EP16751229A EP3332098B1 EP 3332098 B1 EP3332098 B1 EP 3332098B1 EP 16751229 A EP16751229 A EP 16751229A EP 3332098 B1 EP3332098 B1 EP 3332098B1
Authority
EP
European Patent Office
Prior art keywords
housing
sheath
working medium
container
bellows
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16751229.2A
Other languages
German (de)
English (en)
Other versions
EP3332098A1 (fr
Inventor
Richard BRÜMMER
Eberhard Pantow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3332098A1 publication Critical patent/EP3332098A1/fr
Application granted granted Critical
Publication of EP3332098B1 publication Critical patent/EP3332098B1/fr
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B2011/005—Tanks with two or more separate compartments divided by, e.g. a flexible membrane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/004—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for engine or machine cooling systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0063—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/02—Flexible elements

Definitions

  • the invention relates to a container for a waste heat recovery circuit and a waste heat recovery circuit with such a container.
  • the invention further relates to a waste heat utilization device with such a waste heat recovery cycle.
  • Such waste heat utilization facilities are for example from the EP 2 573 335 A2 and from the DD 136 280 known.
  • Waste heat utilization devices can be configured as a cyclic process in the form of a so-called carnot process.
  • a special Carnot process is the so-called Clausius Rankine process.
  • a working medium circulates in a waste heat recovery cycle.
  • an evaporator for evaporating the working fluid, which deprives the internal combustion engine heat.
  • Downstream of the evaporator is located in the waste heat recovery circuit an expansion machine to relax the working fluid to a low pressure.
  • the expansion machine is located in the waste heat recovery circuit, a condenser for liquefying the working fluid.
  • a compression machine for compressing the working fluid to a high pressure can be found in the waste heat recovery circuit. From the compression machine, the working medium returns to the evaporator.
  • heat energy is converted into mechanical drive energy that can be used directly as a mechanical drive power or can be converted into electrical energy by means of a generator.
  • the heat for vaporizing the working medium can, for example, be withdrawn from the exhaust gas of the internal combustion engine.
  • To convey the working medium is a downstream of the condenser arranged in the waste heat recovery circuit pump.
  • a disadvantage of such a conventional waste heat recovery circuit proves that undesirable cavitation effects can be caused by the working fluid in the pump. These can lead to damage of the mechanical medium in contact with the working fluid components of the pump. In extreme cases, this can even result in destruction of the pump.
  • the US 2015/135708 A1 , the DE 10 2009 050068 A1 and the DE 10 2012 000100 A1 each disclose a container for a waste heat recovery circuit with a housing bounding a housing interior, wherein the housing interior can be flowed through by a working medium.
  • the basic idea of the invention is accordingly to provide a compensating container for a waste heat recovery circuit - hereinafter referred to simply as "container" for the sake of simplicity - which effects a subcooling of the working medium, so that this is possible only in the liquid phase; flows through the pump. Unwanted cavitation effects can be avoided in this way.
  • the container it is proposed to equip the container with a, preferably rigid, housing, which can be flowed through by a working medium of a waste heat recovery circuit.
  • a fluid-tight, heat-conducting and volume-variable enclosure is arranged in the housing. This serves to vary the effective volume of the enclosure interior limited housing, which is essential for the desired subcooling of the working medium.
  • the working medium of the waste heat recovery circuit can be initiated in the housing. While flowing through the housing, the working medium can enter into thermal interaction with the auxiliary medium via the thermally conductive sheath.
  • the working medium typically has a higher temperature when entering the container than the auxiliary medium that is stationary in the container.
  • the working medium and the now auxiliary medium such that the boiling point of the auxiliary medium is lower than that of the working medium, it can be permanently achieved that the working medium flows as desired in the liquid state of supercooling through the waste heat recovery circuit. In particular, it is possible to ensure that the desired supercooling level sets in without external active intervention.
  • a working medium with a reduced temperature reaches the housing interior from a condenser of the waste heat recovery circuit upstream of the container, the temperature of the auxiliary medium also decreases within a short time due to heat transfer, and part of the gaseous phase contained therein condenses to the liquid phase, whereby the volume of the envelope Indoor space is reduced. This results in a shift of the working fluid from the condenser into the container, whereby the subcooling is reduced. This happens until the subcooling has reached the desired level again.
  • a vapor phase and a liquid phase of the working medium can be adjusted in the expansion tank integrated in the waste heat recovery circuit such that a condensation pressure results at which the subcooling of the working medium remains substantially constant. If a supercooled, liquid working medium from the condenser passes into the expansion tank, a part of it contained condenses Steam out, and the fluid pressure of the working fluid in the surge tank decreases. If, on the other hand, steam from the condenser arrives in the expansion tank, the fluid pressure in the expansion tank increases due to the additional volume of steam. As a result, complete condensation of the working fluid upon exiting the condenser is ensured without requiring an additional external control mechanism. By arranging the pump immediately downstream of the expansion tank, it is therefore possible to ensure that the working medium of the waste heat recovery circuit always enters the pump in liquid form. This results in that no unwanted cavitation can occur within the pump.
  • An inventive container for a waste heat recovery circuit comprises a housing which defines a housing interior, in such a way that the housing interior can be flowed through by a working medium.
  • a fluid inlet and a fluid outlet can be provided on the housing at a suitable position.
  • a sheath is arranged, in which an auxiliary medium is received.
  • the envelope is fluid-tight and at least partially thermally conductive.
  • the cladding limits a serving volume of variable volume.
  • heat-conducting is understood as meaning any material which permits a heat transfer between the two housing interior spaces required for temperature compensation within a few minutes, preferably within a few seconds.
  • the interior of the housing is at least partially filled with the working fluid and / or flows through it.
  • the envelope is filled fluidically separated from the working medium with an auxiliary medium, which is located in the envelope interior in a gaseous and / or liquid state.
  • the auxiliary medium may have a gaseous phase or a liquid phase in the enclosure-depending on the current operating state of the container in the waste heat recovery circuit-or both Phases.
  • the boiling point of the auxiliary medium preferably by at least 10K, most preferably by at least 14K, is less than a boiling temperature of the working medium.
  • the envelope with a fluid-tight and resiliently deformable membrane.
  • a fluid-tight and resiliently deformable membrane preferably an elastomer, particularly preferably from a plastic into consideration.
  • the sheath can be arranged to be freely movable in the typically liquid working medium present in the outer housing. This allows a particularly rapid increase or decrease in the volume of the envelope in the course of heat transfer between the working medium and the auxiliary medium.
  • the sheath is designed as a (first) bellows.
  • a bellows allows a targeted expansion of the envelope along a predetermined direction, along which extends the bellows-shaped material of the bellows. This leads to a reduced need for space for the container.
  • a separating device is arranged in the interior of the housing, which subdivides the interior of the housing into a first subspace which can be traversed by the working medium and a second subspace which is fluidically separated from the first subspace. If the second subspace is fluidically connected to the external environment of the container by means of a pressure equalization opening provided in the housing, then the effective volume of the Container to flow through with the working fluid when cold shutdown of the waste heat recovery circuit can be reduced.
  • the separation device can be realized in a particularly simple manner by providing it with a separating element made of a fluid-tight and resiliently deformable material for varying the volume ratio of the two subspaces to one another.
  • the separating device is designed as a (second) bellows or part of such a (second) bellows.
  • the simultaneous use of a first and a second bellows requires very little space.
  • the separation device designed as a second bellows and a resilient membrane arranged in the second subspace are part of the enclosure.
  • the second bellows is completed by means of a resilient membrane for wrapping. In this way, a particularly large variability of the volume of the envelope can be realized.
  • the separating device comprises a separating element made of a fluid-tight and resiliently deformable material for varying the volume ratio of the two partial spaces relative to each other.
  • Said separating element is fastened together with a further elastic and heat-conducting membrane on the housing and divides the housing interior into three subspaces.
  • the separator and the membrane are part of the enclosure in this scenario; in such a way that the third subspace is the envelope space bounded by the envelope.
  • the two membranes are fixed to the inside of a common housing wall of the housing.
  • the attachment is preferably such that the common housing wall forms both a part of the housing and the enclosure.
  • the envelope is bounded by the first bellows.
  • the separator has a separating element made of a resilient and fluid-tight material, wherein the first bellows is arranged in the first subspace.
  • the working medium can be ethanol and the auxiliary medium methanol. Since their boiling temperature differs by about 14K, they own these two media in particular to ensure the desired subcooling of the working medium.
  • the housing has a fluid inlet for introducing the working medium into the first subspace and a fluid outlet provided on the housing for discharging the working medium from the first subspace.
  • at least the fluid outlet is preferably arranged in a lower region of the housing, particularly preferably in a housing bottom of the housing.
  • the term "lower range” refers to the position of use of the container in the waste heat recovery cycle.
  • FIG. 1 illustrates a first example of a container 1 according to the invention, as it can be operated in a waste heat recovery circuit 50 of a waste heat utilization device of a motor vehicle.
  • the container 1 has a mechanically rigid housing 2, which defines a housing interior 3 with a predetermined volume.
  • the housing interior 3 is traversed by a working medium 6. This can be introduced via a provided on the housing 2 fluid inlet 12 into the housing interior 3 and discharged via a likewise provided on the housing 2 fluid outlet 13 again from the housing interior 3.
  • a separator 8 is arranged in the housing interior 3.
  • the separating device 8 divides the housing interior 3 into a first subspace 10a that can be filled with the working medium 6 and a second subspace 10b, which is fluidically separated from the first subspace 10a.
  • the fluid inlet 12 and the fluid outlet 13 are fluidly connected to the first subspace 10a.
  • the separating device 8 comprises a separating element 9 made of a fluid-tight and resilient material for varying the volume ratio of the two partial spaces 10a, 10b to one another.
  • the separating element 9 can be realized as a membrane and comprise, for example, an elastomer.
  • the separating element 9 can be fastened on the inside of the housing 2 directly, ie without further fastening means, by means of an adhesive bond.
  • an opening 15 for pressure equalization is present, which fluidly connects the second subspace 10b with the outer environment 14 of the container 1, so that the fluid pressure in the second subspace 10b always the fluid pressure in the external environment 14th equivalent.
  • a filling and venting opening 16 is provided with a filling and venting stub 17 projecting from the housing 2 to the outside, from the housing interior 3 away.
  • the filling and venting opening 16 fluidly connects the first compartment 10a of the housing interior 3 with the external environment 14 of the container 1.
  • the filling and venting connection 17 can be closed by means of a suitably designed sealing cap 18.
  • a sheath 4 is further arranged, which is fluid-tight and at least partially thermally conductive.
  • the sheath 4 delimits a sheath interior 5 of variable volume, in which an auxiliary medium 7 is arranged.
  • the wrapper 4 may be as in FIG. 1 schematically indicated to be formed as a fluid-tight and resilient membrane 11.
  • the membrane 11 has a resilient material which comprises a heat-transferring material for temperature compensation between the working medium 6 and the auxiliary medium 7.
  • An elastomer is considered analogous to the separating element.
  • the auxiliary medium 7 is present in the enclosure interior 5 both in a gas phase 7a and in a liquid phase 7b.
  • the boiling point of the auxiliary medium 7 has a by 10K, preferably at least 14K lower value than the boiling temperature of the working medium 6.
  • the working medium is therefore preferably ethanol, the auxiliary medium methanol.
  • the working medium 6 and the auxiliary medium 7 to an approximately same temperature.
  • This state can be produced by heat transport from the originally hot working medium 6 to the originally cooler auxiliary medium through the heat-transferring membrane 11.
  • This in turn is accompanied by an increase in the fluid pressure of the working medium 6, until an equilibrium between the liquid phase 7a and the gas phase 7b is established in the envelope interior 5 delimited by the membrane 11.
  • the fluid pressure of the working medium 6 in the housing interior 3 then corresponds to the boiling pressure of the auxiliary medium 7 in the enclosure interior 5.
  • the working medium 6 at high temperature and thus in gaseous form that is to say in the form of steam, arrives from the condenser into the housing interior 3, the fluid pressure of working medium 6 and auxiliary medium 7 increases, so that the complete condensation at the condenser outlet automatically, ie without the intervention of an external control.
  • FIG. 1 shows the container 1 in the desired state of subcooling of the working medium.
  • FIG. 2 the container of FIG. 1 in the so-called cold shutdown of the container 1 using waste heat utilization device 50.
  • the occurrence of a negative pressure in the housing interior 3 must be avoided as possible.
  • the second subspace 10b which is fluidically connected to the outer environment 14 of the container 1, so that the volume of the first subspace 10a can be immediately reduced in the course of any pressure drop occurring in the first subspace 10a.
  • those components of the waste heat recovery circuit 51 of the waste heat utilization device 50 which are filled in operation with the working medium 6 in gaseous phase, are flooded with the working medium 6 in the liquid phase.
  • the first partial volume 10a contracts with the aid of the flexible separating device 8, so that the resulting negative pressure can be reduced again.
  • the second subspace 10b is in contact with the external environment 14 via the opening 15, so that pressure equalization is possible.
  • FIG. 2 shows, by moving the separating element 9 away from the housing wall of the housing 2, the volume of the second subspace 10b relative to the state of FIG. 1 enlarged and that of the first subspace 10a reduced.
  • FIG. 3 shows a variant of the container 1 of Figures 1 and 2 ,
  • the sheath 4 is formed in the manner of a (first) bellows 19.
  • the container is the FIG. 3 on the separator 8 for Training two subspaces 10a, 10b omitted, so that the housing 2 and no opening 15 is provided for pressure equalization.
  • the bellows 19 has a first bellows end wall 20a and a first bellows end wall 20a opposite, second bellows end wall 20b.
  • the two bellows end walls 20a, 20b limit the substantially formed in the manner of a cylinder bellows 19 frontally.
  • the two bellows end walls 20a, 20b are by means of the already made FIG.
  • the membrane 11 forms a peripheral wall 21 of the substantially cylindrical bellows 19.
  • Said peripheral wall 21 may be fastened to the two bellows end walls 20a, 20b by means of a fluid-tight adhesive bond.
  • suitable attachment methods in particular a screw or clamp connection, into consideration.
  • the container 1 according to FIG. 4 is a further development of the example of FIG. 3 ,
  • container of FIG. 4 In addition to the first bellows 19 formed as a sheath 4 and the separator 8 is formed as a second bellows 22.
  • the volume bounded by the second bellows 22 forms the first subspace 10a, the region of the housing interior 3 complementary thereto the second subspace 10b.
  • the first bellows 19 is arranged in the second subspace 10b.
  • the second bellows 21 also have a first bellows end wall 23a and a second bellows end wall 23b opposite thereto.
  • the two bellows end walls 23a, 23b define the second bellows 22, which is designed essentially in the manner of a cylinder, on the front side.
  • the two bellows end walls 23a, 23b are connected to one another by means of the separating element 9 of the separating device 8, that is to say of the second bellows 22, in the form of a fluid-tight membrane 24.
  • the separating element 9 as a second bellows 22 circumferentially limiting, resilient peripheral wall 25 trained.
  • the peripheral wall 25 may be fastened to the two end walls 23a, 23b by means of a fluid-tight adhesive bond.
  • fastening methods for the first bellows 19 into consideration ie in particular a screw or clamp connection.
  • FIG. 4 are analogous to the container of Figures 1 and 2 on the housing 2, a fluid inlet 12 and a fluid outlet 13 are provided ,! which are both in fluid communication with the volume bounded by the second bellows 22, ie the first subspace 10a.
  • the end wall 23a may be as in FIG FIG. 4 can be formed by a housing wall 26 of the housing 2 or the end wall 23a can, for example by means of an adhesive bond, be attached flat to this housing wall 26.
  • a filling and venting 16 provided with a housing 2 from the outside, from the housing interior 3 projecting away filling and vent pipe 17.
  • the filling and venting opening 16 fluidly connects the first partial space 10a of the housing interior 3 with the outer environment 14 of the container 1.
  • the filling and venting nozzle 17 can be sealed by means of a sealing cap 18.
  • the container 1 according to FIG. 4 has an opening 15, which connects the second subspace 10b for the purpose of pressure equalization fluidly with the outer environment 14 of the container.
  • a pressure relief valve 28 may be formed at the filling and venting pipe 17, a pressure relief valve 28 may be formed.
  • FIG. 5 shows a further technical realization possibility for the container 1.
  • the (second) bellows 22 formed separator 8 is part of the enclosure 4.
  • a resilient membrane 29, in the second Partial space 10 b is arranged, and a housing wall 26 of the housing 2 complete that part of the (second) bellows 22, which is part of the enclosure 4, to the enclosure 4th
  • the separating device 8 comprises a separating element 9 made of a fluid-tight and resiliently deformable material for varying the volume ratio of the two partial spaces 10a, 10b relative to each other.
  • the separating element 9 is fastened to the housing 2 together with a further elastic and heat-conducting membrane 11 and subdivides the housing interior 3 into three partial spaces 10a, 10b, 10c.
  • the separating element 9 and the membrane 11 are part of the envelope 4.
  • the third subspace 10c forms the envelope interior 5 delimited by the envelope 4.
  • the attachment of dividing element 9 and membrane 11 can be carried out such that the common housing wall 26 as in FIG FIG. 6 illustrated forms both a part of the housing 2 and the enclosure 4.
  • the membrane 11 is replaced by a first bellows 19, which in terms of its construction substantially or exactly the bellows 19 of FIG. 3 equivalent.
  • the wrapper 4 is as in the example of FIG. 3 formed by the bellows 19.
  • the separator 8 is in an analogous manner to FIG. 6 formed and realized as a diaphragm 29 made of a resilient and fluid-tight material.
  • the first bellows 19 is disposed in the first compartment 10a.
  • the bellows end wall 20 a of the bellows 19 may be formed by the housing wall 26 of the housing 2. Alternatively, said bellows end wall 20a but also be secured to the inside of the housing wall 26, for example by means of a flat adhesive bond.
  • the housing 2 is pot-shaped with a housing pot 27, which is closed by the housing wall 26, so that the housing wall 26 acts in the manner of a lid.
  • FIG. 8 schematically shows the structure of a waste heat utilization device with a waste heat recovery circuit 51, in which the previously presented container 1 is arranged and in which the working medium 6 circulates.
  • a conveyor 52 is arranged in the form of a feed pump for conveying the working medium 6.
  • two evaporators 53 are arranged, in which the working medium 6 is evaporated.
  • an expansion machine 54 is arranged downstream of the expansion machine 54.
  • a condenser 55 is provided, followed by the container 1, so that the waste heat recovery circuit 51 forms a closed circuit.
  • a filter device 56 for filtering the working medium 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (17)

  1. Récipient (1) pour un circuit d'utilisation de chaleur perdue (50), dans lequel un dispositif de transport du circuit d'utilisation de chaleur perdue est agencé en aval du récipient et dans lequel le récipient suit le condensateur du circuit d'utilisation de chaleur perdue,
    - avec un boîtier (2) délimitant un espace intérieur de boîtier (3) de sorte que l'intérieur de boîtier (3) peut être traversé par un milieu de travail (6),
    - avec une enveloppe (4) agencée dans l'intérieur de boîtier (3), dans laquelle un milieu auxiliaire (7) est reçu,
    dans lequel l'enveloppe (4) est réalisée étanche aux fluides et thermoconductrice au moins par zone et délimite un espace intérieur d'enveloppe (5) de volume variable,
    caractérisé en ce que
    l'intérieur de boîtier (3) est rempli au moins en partie du milieu de travail (6) et/ou est traversé par celui-ci et l'enveloppe (4) est remplie d'un milieu auxiliaire (7), lequel est agencé dans l'espace intérieur d'enveloppe (5) dans un état gazeux et/ou liquide,
    dans lequel une température d'ébullition du milieu auxiliaire (7) présente une valeur plus faible, de préférence d'au moins 10 K, de manière hautement préférée d'au moins 14 K qu'une température d'ébullition du milieu de travail (6).
  2. Récipient selon la revendication 1,
    caractérisé en ce que
    l'enveloppe (4) comprend au moins par zone un matériau thermoconducteur pour la compensation de température entre le milieu de travail (6) et le milieu auxiliaire (7).
  3. Récipient selon la revendication 1 ou 2,
    caractérisé en ce que
    l'enveloppe (4) comprend ou est une membrane (11) étanche aux fluides et réalisée à élasticité de ressort.
  4. Récipient selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'enveloppe (4) est agencée librement mobile dans le milieu de travail (6) présent dans le boîtier (2).
  5. Récipient selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'enveloppe (4) est réalisée en tant que (premier) soufflet (19).
  6. Récipient selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    un dispositif de séparation (8), lequel subdivise l'intérieur de boîtier (3) en un premier espace partiel (10a) pouvant être traversé avec le milieu de travail (6) et un deuxième espace partiel (10b) séparé fluidiquement du premier espace partiel (10a), est agencé dans l'intérieur de boîtier (3),
    dans lequel une ouverture (15), laquelle relie fluidiquement le deuxième espace partiel (10b) de l'intérieur de boîtier (3) à un environnement extérieur (14) du récipient (1), est présente dans le boîtier (2) pour la compensation de pression.
  7. Récipient selon la revendication 6,
    caractérisé en ce que
    le dispositif de séparation (8) comprend un élément de séparation (9) en un matériau étanche aux fluides et élastiquement déformable pour la variation du rapport de volume des deux espaces partiels (10a, 10b) l'un par rapport à l'autre.
  8. Récipient selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de séparation (8) est réalisé en tant que deuxième soufflet (22) ou fait partie du deuxième soufflet (22).
  9. Récipient selon la revendication 8,
    caractérisé en ce que
    le dispositif de séparation (8) réalisé en tant que (deuxième) soufflet (22) et une membrane à élasticité de ressort (29) agencée dans le deuxième espace partiel font partie de l'enveloppe (4).
  10. Récipient selon la revendication 8 ou 9,
    caractérisé en ce que
    la membrane à élasticité de ressort (29) complète le deuxième soufflet (22) pour l'enveloppe (4).
  11. Récipient selon la revendication 9 ou 10,
    caractérisé en ce que
    le dispositif de séparation (8) comprend un élément de séparation (9) en un matériau étanche aux fluides et élastiquement déformable pour la variation du rapport de volume des deux espace partiels (10a, 10b) l'un par rapport à l'autre,
    dans lequel l'élément de séparation (9) est fixé conjointement avec une autre membrane (11) à élasticité de ressort et thermoconductrice au niveau du boîtier (2) et l'intérieur de boîtier (3) est subdivisé en trois espaces partiels (10a, 10b, 10c), et
    dans lequel l'élément de séparation (9) et la membrane (11) font partie de l'enveloppe (4) de sorte que le troisième espace partiel (10c) est l'espace intérieur d'enveloppe (5) délimité par l'enveloppe (4).
  12. Récipient selon la revendication 11,
    caractérisé en ce que
    l'élément de séparation (9) et la membrane (11) sont fixés à l'intérieur au niveau d'une paroi de boîtier (26) commune du boîtier (2) de sorte que la paroi de boîtier (26) commune forme aussi bien une partie du boîtier (2) que l'enveloppe (4).
  13. Récipient selon l'une quelconque des revendications 5 à 12,
    caractérisé en ce que
    l'enveloppe (4) est délimitée par le premier soufflet (19) et le dispositif de séparation (8) présente un élément de séparation (9) en un matériau à élasticité de ressort et étanche aux fluides, dans lequel le premier soufflet (19) est agencé dans le premier espace partiel (10a).
  14. Récipient selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le milieu de travail (6) est de l'éthanol et le milieu auxiliaire est du méthanol.
  15. Récipient selon l'une quelconque des revendications 6 à 14,
    caractérisé en ce que
    le boîtier (2) présente une entrée de fluide (12) pour l'introduction du milieu de travail (6) dans le premier espace partiel (10a) et une sortie de fluide (13) présente au niveau du boîtier (2) pour l'évacuation du milieu de travail (6) du premier espace partiel (10a),
    dans lequel au moins la sortie de fluide (13) est agencée dans une zone inférieure du boîtier (2), en particulier dans un fond de boîtier du boîtier (2).
  16. Dispositif d'utilisation de chaleur perdue, dans lequel un milieu de travail (6) circule,
    - avec un dispositif de transport (52), en particulier une pompe d'alimentation, pour le transport du milieu de travail,
    - avec un évaporateur (53) pour l'évaporation du milieu de travail (6)
    - avec une machine d'expansion (54),
    - avec un récipient (1) agissant en tant que récipient de compensation selon l'une quelconque des revendications précédentes.
  17. Dispositif d'utilisation de chaleur perdue, en particulier pour un véhicule automobile, avec un circuit d'utilisation de chaleur perdue (50) selon la revendication 16.
EP16751229.2A 2015-08-06 2016-07-28 Récipient pour circuit d'utilisation de chaleur perdue Active EP3332098B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215063.1A DE102015215063A1 (de) 2015-08-06 2015-08-06 Behältnis für einen Abwärmenutzungskreislauf
PCT/EP2016/068072 WO2017021282A1 (fr) 2015-08-06 2016-07-28 Récipient pour circuit d'utilisation de chaleur perdue

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Publication Number Publication Date
EP3332098A1 EP3332098A1 (fr) 2018-06-13
EP3332098B1 true EP3332098B1 (fr) 2019-04-10

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EP (1) EP3332098B1 (fr)
JP (1) JP6534773B2 (fr)
DE (1) DE102015215063A1 (fr)
WO (1) WO2017021282A1 (fr)

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Publication number Priority date Publication date Assignee Title
FR3084913B1 (fr) 2018-08-09 2020-07-31 Faurecia Systemes Dechappement Systeme thermique a circuit rankine
US11945598B2 (en) * 2022-02-11 2024-04-02 Pratt & Whitney Canada Corp. Vapor-to-air heat exchanger for aircraft powerplant

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US4159736A (en) * 1975-03-20 1979-07-03 Technip Method of and arrangement for the seasonal storage and use of hot water produced in particular by electrical power-generating thermal and nuclear stations
US4010731A (en) * 1975-10-23 1977-03-08 Halm Instrument Co., Inc. Heat storage tank
DD136280A1 (de) 1978-02-13 1979-06-27 Guenter Wagenlehner Fluessigkeitskuehlung mit geschlossenem kreislauf,insbesondere fuer verbrennungsmotoren
CA1159657A (fr) * 1979-01-17 1984-01-03 Anders D. Backlund Methode et dispositif pour la conversion de l'energie
JPS5851280A (ja) * 1981-09-21 1983-03-25 Mitsubishi Heavy Ind Ltd 間欠作動装置
DE3339717A1 (de) * 1983-11-03 1985-05-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8500 Nürnberg Verdampfungskuehlung fuer verbrennungsmotoren
DE102005001347A1 (de) * 2005-01-11 2006-07-20 GEOTEX Ingenieurgesellschaft für Straßen- und Tiefbau mbH Mehrkammerwärmespeicher zur Speicherung von Wärmeenergie und für die Erzeugung elektrischer Energie
DE102009050068A1 (de) * 2009-10-14 2011-04-21 Daimler Ag Verbrennungsmotor
DE102012000100A1 (de) 2011-01-06 2012-07-12 Cummins Intellectual Property, Inc. Rankine-kreisprozess-abwärmenutzungssystem
JP2013079641A (ja) 2011-09-21 2013-05-02 Toyota Industries Corp 廃熱利用装置
DE102014223626A1 (de) 2013-11-20 2015-05-21 MAHLE Behr GmbH & Co. KG Vorrichtung und Verfahren zur Rückgewinnung von Abwärmeenergie und ein Nutzkraftfahrzeug
FR3020090B1 (fr) * 2014-04-16 2019-04-12 IFP Energies Nouvelles Dispositif de controle d'un circuit ferme fonctionnant selon un cycle de rankine et procede utilisant un tel dispositif

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Also Published As

Publication number Publication date
WO2017021282A1 (fr) 2017-02-09
EP3332098A1 (fr) 2018-06-13
US10323889B2 (en) 2019-06-18
JP6534773B2 (ja) 2019-06-26
US20180224224A1 (en) 2018-08-09
DE102015215063A1 (de) 2017-02-09
JP2018530727A (ja) 2018-10-18

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