EP2622286A2 - Dispositif de recirculation de condensat d'une machine frigorifique à adsorption - Google Patents

Dispositif de recirculation de condensat d'une machine frigorifique à adsorption

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Publication number
EP2622286A2
EP2622286A2 EP11817267.5A EP11817267A EP2622286A2 EP 2622286 A2 EP2622286 A2 EP 2622286A2 EP 11817267 A EP11817267 A EP 11817267A EP 2622286 A2 EP2622286 A2 EP 2622286A2
Authority
EP
European Patent Office
Prior art keywords
tube
evaporator
return device
condenser
condensate return
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.)
Withdrawn
Application number
EP11817267.5A
Other languages
German (de)
English (en)
Inventor
Niels Braunschweig
Sören PAULUSSEN
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.)
INVENSOR GmbH
Original Assignee
INVENSOR GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by INVENSOR GmbH filed Critical INVENSOR GmbH
Publication of EP2622286A2 publication Critical patent/EP2622286A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the invention relates to a condensate return device for a Adsortpionskarltemaschine comprising at least one tube which connects the condenser to the evaporator, wherein the tube is open to vapor and preferably has a pressure-reducing element. Furthermore, the invention relates to the use of the condensate return device and a method for recycling the condensate.
  • chillers which are generally used for heating and / or cooling of buildings. Chillers implement thermodynamic cycles, where, for example, heat is absorbed below the ambient temperature and released at a higher temperature. The thermodynamic cycles are similar to those of a heat pump. Known in the art
  • Chillers are z. As adsorption refrigeration systems, diffusion absorption refrigeration machines and compression refrigeration systems.
  • the Adsorptionshimltemaschine consists of at least one ad / Desorber unit, an evaporator, a condenser and / or a combined evaporator / condenser unit, which are housed in a common container or in separate containers, which then with tubes o. ⁇ the refrigerant flow are connected together.
  • the advantage of the sorption machines compared to conventional heat pump technology is that the expiration of the adsorption / desorption solely by the temperature of the
  • the container of the adsorption machine can be hermetically sealed and gas-tight.
  • the adsorption chiller preferably operates in the vacuum range.
  • the adsorption occurring in an adsorption machine describes a physical process in which a gaseous refrigerant (for example, water) to a
  • the refrigerant which absorbs heat at a low temperature and low pressure and releases heat at a higher temperature and pressure, is selected such that a change in state of aggregation is associated with the adsorption or desorption.
  • Adsorbents are described in the prior art substances that are finely porous and therefore have a very large internal surface area.
  • Advantageous materials are activated carbon, zeolites, alumina or silica gel, aluminum phosphates, silica-aluminum phosphates, metal-silica-aluminum phosphates, mesostructure silicates, organometallic scaffolds and / or microporous material comprising microporous polymers.
  • the adsorption material can advantageously be applied differently, that is it can - - be a bed, a bond and / or crystallization. Due to these different types of application, the adsorption machine can be adapted to different requirements. So the machine can go to the location or the
  • Refrigerant can be adjusted.
  • the layer thickness of the adsorbent material is critical to the performance of the adsorbent material.
  • Condensation heat to be removed from the plant This is usually done via a flowing heat transfer medium that transports this heat to a heat sink, e.g. to a recooling plant, which releases the heat to the ambient air.
  • a heat sink e.g. to a recooling plant
  • the temperatures and thus the pressures within the adsorption machine would rise and the adsorption process would cease.
  • the efficiency of an adsorption machine can be significantly increased by improved heat transfer, which inevitably improves the efficiency of the system.
  • a vacuum tank is necessary because z. B. water can be used as a refrigerant and accordingly low pressures are required.
  • a method for operating an adsorption chiller is z. B. from DE 34 08 193 A1. The method serves to increase the temperature of heat in the first and second expeller (adsorber) periodically between the adsorption and adsorber
  • This internal heat exchange comprises first a pressure equalization step and a subsequent heat transfer through a
  • An adsorption refrigeration machine further comprises a return device which serves to maintain a variable depending on the operating conditions
  • This feedback device is in particular for the return of the liquefied refrigerant from the condenser into the evaporator of Meaning, since only such a refrigerant circuit remains in the system. Furthermore, the return device contributes to an optimized process efficiency of the system and is therefore an important component.
  • the return device contributes to an optimized process efficiency of the system and is therefore an important component.
  • Adsorption chillers are feasible.
  • Such a return device is disclosed for example in DE 38 08 653 C2.
  • the collected in a condenser tank and stored at the bottom of the container coolant liquid is supplied to the evaporator via a return means in the form of a pipe due to a pressure difference.
  • DE 10 2008 012 598 describes a return device for a
  • Adsorptionshimltestrom comprising a fluid-flow-through arrangement of a first siphon (U-tube) from a downwardly directed first inner tube, a downwardly closed, the inner tube enclosing the first outer tube and a arranged at an upper end of the outer tube first pressure equalization pot with a first exit.
  • a second siphon is connected downstream, wherein this has a downwardly directed second inner tube, a downwardly closed, the second inner tube enclosing second outer tube and a second outer tube disposed second output.
  • the siphon is high enough to be able to compensate for the fluctuating pressure differences between the evaporator and condenser, by means of a hydrostatic acting water column. Since water always remains in the U-tube, it acts as a vapor barrier, so that the pressure separation between
  • a disadvantage of the feedback devices disclosed in the prior art is that they are not made compact and can not be arranged to save space on the Adsorptionskarltemaschine, which also no compact Adsorptionskarltemaschinen - - can be produced.
  • they In order to guarantee the function of the return devices, they must always consist of several units (or siphons) connected in series, which makes the return device very complex and expensive to install.
  • the cascading of the siphons are prone to error and difficult to maintain.
  • the return means comprise a plurality of metal pipes which significantly increase the weight and the manufacturing cost of the adsorption machine.
  • the pressure separation by means of a simple siphon can generally not be achieved if the available hydrostatic pressure or the hydrostatic head is insufficient for a low apparatus.
  • the vapor may pass out of the condenser, producing a significant loss of cooling power.
  • the device comprises at least one tube, wherein at least one tube with a condenser and an evaporator of
  • Adsorptionshimltemaschine is connected vapor-open, wherein it is preferred that a pressure-reducing element is present in the tube.
  • the device of the invention is simple in construction, has no moving parts, is durable and the condensate can flow without congestion from the condenser in the evaporator. It may be preferable to arrange a plurality of tubes between the evaporator and the condenser.
  • the invention relates to a condensate return device for a
  • Adsorptionshimltemaschine comprising at least one tube, wherein at least one tube with a condenser and an evaporator of the Adsorptionshimltemaschine is open to vapor and a mass flow of liquid refrigerant and a low mass flow of vapor refrigerant, preferably less than 0% to 3%, preferably 0.5 to 2%, more preferably 1% to 1, 5% of the mass flow of liquid refrigerant through the condensate return device, in particular the tube flows.
  • the tube is preferably connected positively or cohesively to the evaporator and the condenser.
  • Positive connections are preferably formed by the Interaction of at least two connection partners. The positive locking
  • Connections include screws, rivets, pins or clamps.
  • the tube may be connected to the components of the adsorption chiller, for example by means of screws or rivets and corresponding seals. Furthermore, the tube by cohesive means to the capacitor and the
  • Cohesive connections are held together by atomic or molecular forces. They are at the same time non-detachable connections, which can be solved only by destruction of the components and / or the connecting means again. Bonded connections include soldering, welding or gluing. The person skilled in the art knows that positive-locking or material-locking connections, such as welded connections in the form of one or more
  • Connection points eg spot weld
  • a linear (eg weld) or surface connection can be performed.
  • the condensate return device can advantageously flow a fluid comprising a vaporous and / or liquid fluid from the condenser through the tube into the evaporator. That is, it is preferable that in the tube there is a flowing fluid comprising vaporous and liquid fluid.
  • a fluid refers in particular to a gas or a liquid.
  • Refrigerant which may be referred to as fluid within the meaning of the invention, is present in the condenser as vapor and liquid.
  • the gaseous refrigerant present in the condenser must not enter the evaporator to any significant extent.
  • the condensate return device according to the invention is designed open to vapor, so that a defined mass flow of steam from the
  • Capacitor flows through the device into the evaporator.
  • the refrigerant flowing in the gaseous state through the apparatus to the evaporator is adsorbed by the adsorbent material of the adsorber / desorber unit, it does not contribute to the refrigerating capacity of the evaporator since the evaporation of the refrigerant does not take place in the evaporator chamber.
  • the power loss is due to the fact that steam passes directly from the condenser into the evaporator. Due to the condensate recirculation according to the invention, the power loss amounts to less than 2%.
  • a tube which, due to a specific diameter and a corresponding length, offers surprising advantages over the prior art having.
  • the diameter and the length of the tube are chosen so that the condensate can flow on the one hand without difficulty without backflow to the evaporator, the steam flows from the condenser on the other hand in a negligible or negligible amount in the evaporator.
  • This effect is produced in particular by pressure losses of the vapor flow in the tube and is due to the large density difference between the liquid condensate and the gaseous vapor.
  • This difference in density has the consequence that the mass flow of the steam through a pipe of a certain diameter, for example with water as refrigerant, is up to 200 times smaller than the flow of the liquid refrigerant. It is known to the person skilled in the art that the mass flow and not the volume flow of the steam is the decisive variable for the loss of cooling capacity.
  • the mass flow and not the volume flow of the steam is the decisive variable for the loss of cooling capacity.
  • Mass flow has, which corresponds to a negligible loss of cooling capacity. It is preferred that the mass flow of the liquid condensate is 0.4 g / s per kW cooling capacity, wherein the steam mass flow, in particular the mass flow of the vaporous refrigerant at idling is at most 1% of the mass flow of the liquid condensate. Preference is given to a steam mass flow of 0.004 g / s per kW cooling capacity. It was completely surprising that despite a steam-open condensate return device a
  • Adsorption chiller can be operated efficiently. It is not unreasonable for a person skilled in the art to reproduce the invention and to provide a tube which allows the required mass flows of liquid and vapor condensate to pass. The person skilled in the art can carry out simple comparative experiments for this purpose.
  • the invention relates to a
  • Condensate return device for an adsorption refrigeration machine, comprising at least one tube, wherein the tube with a condenser and an evaporator of
  • Adsorptionshimltemaschine is connected vapor-open and a mass flow
  • vaporous refrigerant of not more than 0% to 3%, preferably 0.5% to 2% and particularly preferably 1% to 1, 5% of the mass flow of the liquid condensate, in particular
  • Condensate return device can be provided in which flows in addition to the liquid condensate, in particular the liquid refrigerant mass flow of the vapor refrigerant of a maximum of 1% of the mass flow of the liquid refrigerant, wherein the power drop of the adsorption is less than 4%, preferably less than 2% ,
  • V u ⁇ A
  • the power loss is a function of the drag coefficient:
  • Condensate return device should ensure that:
  • the condensate return device has no vibrations during the operation of the adsorption chiller
  • a tube describes in the context of the invention, in particular an elongated hollow body whose length is usually much larger than its cross-section. It may also have a rectangular, oval or other cross-section.
  • the tube preferably has a length of 0 to 2 m, wherein in particular a length of 0.1 m to 1 m is advantageous.
  • the tube can be easily connected to the components of the adsorption chiller and is easily customizable, so it is universally applicable. For example, an installer can shorten the pipe on site and adjust it to a required length. It has also been found that the tube is very low maintenance to maintenance free, since it is a simple construction. For the purposes of the invention, it may also be advantageous to make the tube so short that it only serves as an opening between the
  • a tube according to the invention in particular also includes an opening or passage through which a mass flow of liquid and vapor
  • Refrigerant can flow. It may therefore be preferable to arrange at least one opening or passage between the condenser and the evaporator.
  • the tube is preferably made of metal, plastic and / or ceramic materials.
  • Preferred variants include steel, stainless steel, cast iron, copper, brass, nickel alloys, titanium alloys, aluminum alloys, plastic, combinations of plastic and metal (composite pipe), combinations of glass and metal (enamel) or
  • Ceramics It may also be preferred to connect a plurality of tubes to one another in a force-locking and / or material-locking manner.
  • Frictional connections include clamping rings, molded parts, bent pipe sections, screws or rivets.
  • Bonded joints include gluing, welding, brazing or vulcanizing. Due to the good thermal conductivity copper or aluminum is advantageously used as the material for the tubes, whereby the use of stainless steel can be advantageous because it has high static and dynamic strength values and high corrosion resistance.
  • Plastic pipes for example polyvinyl chloride, are particularly light and flexible and can thus reduce the weight of the adsorption chiller.
  • Ceramic materials, - - comprehensive building ceramic materials have a high stability and long durability. Particularly advantageous are combinations of the materials listed, since thus
  • the preferred materials meet the high manufacturing requirements of a pipe, or a
  • Adsorption chiller because they are stable to high temperatures or varying pressures.
  • the tube has diameters of 0.01 to 15 mm, preferably 2 to 10 mm and more preferably 3 to 6 mm.
  • the tube is angled or not straight.
  • a pipe for a 10kW adsorption refrigerator has a diameter of 4mm and a length of 2m, the cooling power loss being more preferably 1.5%.
  • the diameter / length ratio is preferably 1 to 500, the ratio of the performance of the adsorption chiller is and is given only by way of example.
  • the tube function as a pressure reducing element based on its diameter to length ratio.
  • the diameter is reduced or the length increased so far that the liquid condensate (in particular the refrigerant) and a small volume of vapor refrigerant, preferably less than or equal to 1% of the mass flow of the liquid condensate from the evaporator through the tube into the evaporator flows.
  • the power loss of the adsorption chiller is
  • the pressure-reducing element which is preferably arranged in the tube, is preferably a throttle, a valve or a stopcock.
  • the elements can be integrated into a tube and cause a local narrowing of the flow cross-section.
  • valves which can be classified according to their geometric shape, be integrated into the tubes.
  • valves comprising through valves, angle valves, angle seat valves and / or three-way valves can be used.
  • the flow rates in the pipes can be precisely and precisely metered by changing the nominal diameter, as well as being able to close securely against the environment.
  • the valves can advantageously be operated by hand, by medium, mechanically or electromagnetically.
  • a throttle is within the meaning of the invention
  • a conical piece of tube within a tube is preferred, with concentric or eccentric reductions being preferred as well.
  • the pressure-reducing element is an aperture and / or a built-in component.
  • a built-in part includes, for example, a reduced cross-section of a casing or parts of the casing of a strand, a T-piece with reduced outlet or a sleeve, aperture, fitting or measuring, control or control device with reduced cross-section. The person skilled in fluid mechanics knows how such a built-in component can be integrated into a pipe.
  • Cross-section reducing elements can be advantageously integrated into one or more tubes, and it may be advantageous to make these adjustable and variable. That is, the pressure-reducing elements may be controllable or self-regulating, thereby preferably at any time and condition the optimum or preferred
  • Pressure reduction can be adjusted, since the flowing cross-section of the tubes can be reduced or increased.
  • the adjustability of the pressure-reducing element can be realized manually, for example by means of a manual tap. However, it may also be preferred that the
  • the pressure-reducing element may be provided with measuring and control devices, for example, measure the pressure in the tube and based on this, the nominal diameter of the tube, that change the cross-section of the tube through the pressure-reducing element.
  • the pressure-reducing element changes the nominal diameter of the pipes or the pipe or the cross-section of the free flow such that substantially liquid condensate and a small volume of vapor from the
  • Condenser flows into the evaporator.
  • Control device to the condensate return device in particular the condenser and / or the evaporator installed.
  • the measuring and / or regulating device measures in particular physical properties of the refrigerant, including temperature and / or pressure.
  • the measurement and / or control device can thus determine the vapor pressure in the condenser, wherein the measured quantities are digitized and output as data.
  • the measured data - the so-called actual values - be compared with predetermined target values and, if necessary, existing difference causes the control device preferably varies the pipe size or the cross section of the free flow over the pressure reducing element.
  • the condensate return device can be easily and quickly adapted to different modes of operation or operating points of the adsorption chiller.
  • the desired values preferably correspond to values which define a specific mode of operation.
  • operating points may designate certain points in the characteristic diagram or on the characteristic curve of a technical device, preferably a sorption machine, particularly preferably an adsorption chiller or adsorption heat engine, which are adopted on the basis of the system properties and acting external influences and parameters. Examples are the temperatures of the sorption machine, particularly preferably an adsorption chiller or adsorption heat engine, which are adopted on the basis of the system properties and acting external influences and parameters. Examples are the temperatures of the
  • the system configuration preferably designates the configuration of the machine, that is to say, for example, the internal hydraulic connection of the components of the machine, the internal connection of the components on the refrigerant side or the changed basic structure of the machine (eg number of adsorbers, operation of the machine)
  • the condensate return device can be easily known by those skilled in the art
  • the condensate return device is a simple construction that can be made in different lengths or dimensions. In the prior art, the use of steam-open - -
  • the condensate return device and for 1-chamber systems for example with 2 adsorbers, but also for 2- or multi-chamber systems, each with only one adsorber of a Adsorptionshimltemaschine be used.
  • it can be easily and quickly adapted to other types of sorption machines. Essentially, the machines do not have to be modified in terms of apparatus.
  • the pressure loss designates the pressure difference resulting from wall friction and internal fluid friction in pipelines.
  • the condenser and the evaporator preferably different pressures are present. This ensures that substantially no liquid or vapor refrigerant flows from the evaporator into the condenser.
  • the term "substantially” is not an unclear formulation to the skilled person in terms of printing, since he recognizes by the overall disclosure of the teaching of the invention that the pressure is preferably different in both components of the adsorption and this
  • Formulation of course captures small as well as large pressure differences alike.
  • the different pressures can be determined, for example, by measuring methods described in the prior art.
  • the mass flow of the vapor, in particular of the vaporous refrigerant is in particular at most 1% of the mass flow of the liquid refrigerant.
  • the invention also relates to an adsorption refrigerating machine comprising a
  • Condensate return device comprising at least one adsorber / desorber unit, - - A condenser and evaporator unit, wherein the condensate return device consists of a vapor-open pipe between the evaporator and condenser unit and in the tube is a pressure-reducing element. It may also be preferred to arrange at least one, preferably a plurality of tubes between evaporator and condenser.
  • the invention relates in particular to an adsorption chiller comprising at least one adsorber desorber unit with heat exchanger and sorption material, at least one condenser, at least one condenser heat exchanger, at least one evaporator-condenser unit and / or an evaporator heat exchanger, wherein the condensate return device as at least a vapor-open pipe between
  • the average person skilled in the art knows which of the abovementioned assemblies he has to use depending on the type of adsorption chiller.
  • the above list represents a group of units from which - depending on the type of Adsorptionskarltemaschine - individual units can be joined together; The person skilled in the selection and the joining of the individual components is known.
  • the invention also relates to the use of a condensate return device for
  • At least one tube is arranged between the evaporator and the condenser, wherein at least one tube is open to vapor and in at least one tube preferably a pressure-reducing element is present. It is also preferred that at least one tube is designed only as a passage or opening and accordingly exists between the evaporator and condenser at least one passage or at least one opening.
  • the invention relates to a method for condensate return a
  • An adsorption refrigerating machine comprising at least one pipe arranged between a condenser and an evaporator of the adsorption refrigerating machine, wherein a liquid refrigerant present in the condenser and a vaporous refrigerant flow into the evaporator via at least one pipe and an adsorption chiller power loss of less than 5%. , preferably less than 2%.
  • At least one tube preferably has a pressure-reducing element. - -
  • FIG. 4 Preferably compact adsorption refrigeration machine with alternative
  • Fig. 1 shows an adsorption chiller according to the prior art.
  • Adsorption chiller 1 is divided, as any conventional chiller, in two
  • Areas with different pressure to the high pressure area belongs the condenser 2 and the desorber 3; to the low-pressure region of the evaporator 4 and the adsorber 3.
  • the condensate from the condenser 2 (higher pressure) back to the evaporator 4 (low pressure) must be performed.
  • the individual components are connected to each other via vapor openings, which allow a flow of steam.
  • Figs. 2 and 3 show preferred embodiments of the condensate return device.
  • the condenser 2 of an adsorption chiller has a certain level of liquid refrigerant 6, which flows from the condenser 2 into the evaporator 4 by means of the condensate return device 7.
  • the connection between the condenser 2 and the evaporator 4 is produced by at least one tube 8 in which there is advantageously a pressure-reducing element 9. Due to a specific diameter and a corresponding length of the tube 8, the condensate return device 7 has surprising advantages over the prior art.
  • the diameter and the length of the tube 8 are preferably chosen so that the liquid refrigerant 6 can flow on the one hand without difficulty and without backflow to the evaporator 4, wherein the steam from the condenser 2 on the other hand flows in a negligible or negligible amount in the evaporator 4 , preferably less than 1% of the mass flow of the liquid refrigerant.
  • This effect is preferably produced by pressure losses of the steam flow in the tube 8 and is due to the large density difference between the liquid condensate and the gaseous vapor.
  • the tube 8 itself may have a pressure-reducing element, for example, by a diaphragm is arranged in the tube 8. However, it may also be preferred that the diameter and length of the tube 8 is selected so that liquid refrigerant flows through it, but vaporous refrigerant only with a low mass flow. in the - -
  • the tube 8 may also be referred to as a pressure-reducing element 9.
  • Capacitor 2 is arranged directly above the evaporator 4. Between the
  • the condensate return device 7 is arranged, wherein the tube 8 of the condensate return device 7 is configured as an opening or passage 8.
  • the condensate return is then through one or more openings / passages 8, which may be referred to in the sense of the invention, in particular as holes in the partition wall between the two chambers.
  • Fig. 5 shows the preferred design range of the condensate return device.
  • a pressure loss is preferred, in particular a diameter / length ratio in which the liquid condensate, in particular the liquid refrigerant flows through the condensate return device, but also also steam. This results in a high power loss.
  • the condensate return device can be designed such that the power loss is minimal and no steam flows through, but accumulates the liquid condensate.
  • a condensate return device can be provided, through which flows a mass flow of liquid refrigerant, in particular condensate but also in particular a maximum of 1% of the mass flow of liquid condensate as a vapor refrigerant. This represents a departure from the technically usual.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un dispositif de recirculation de condensat qui est disposé entre un condenseur et un évaporateur d'une machine frigorifique à adsorption et se présente sous la forme d'un tube laissant passer la vapeur.
EP11817267.5A 2010-09-28 2011-09-28 Dispositif de recirculation de condensat d'une machine frigorifique à adsorption Withdrawn EP2622286A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010047209 2010-09-28
DE102010047213 2010-09-29
PCT/DE2011/075236 WO2012052011A2 (fr) 2010-09-28 2011-09-28 Dispositif de recirculation de condensat d'une machine frigorifique à adsorption

Publications (1)

Publication Number Publication Date
EP2622286A2 true EP2622286A2 (fr) 2013-08-07

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Country Status (6)

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US (1) US20130213062A1 (fr)
EP (1) EP2622286A2 (fr)
JP (1) JP2013539005A (fr)
KR (1) KR20130116260A (fr)
AU (1) AU2011317943C1 (fr)
WO (1) WO2012052011A2 (fr)

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FR3026828B1 (fr) * 2014-10-01 2016-11-11 Coldway Procede de mise en temperature et de maintien en temperature de l'interieur d'une enceinte thermiquement isolee sans apport d'energie continu- dispositif associe
ITUB20152920A1 (it) * 2015-08-06 2017-02-06 Alberto Delfino Pompa di calore ad adsorbimento
DE102016106234B4 (de) 2016-04-06 2022-03-03 Fahrenheit Gmbh Adsorptionswärmepumpe und Verfahren zum Betreiben einer Adsorptionswärmepumpe
US11051431B2 (en) * 2018-06-29 2021-06-29 Juniper Networks, Inc. Thermal management with variable conductance heat pipe

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WO2007147280A2 (fr) * 2006-06-23 2007-12-27 Heig-Vd Dispositif generateur de froid a adsorption et clapet de retenue monte sur ce dispositif

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KR20130116260A (ko) 2013-10-23
WO2012052011A3 (fr) 2013-01-17
AU2011317943A1 (en) 2013-04-04
AU2011317943C1 (en) 2015-10-08
WO2012052011A2 (fr) 2012-04-26
JP2013539005A (ja) 2013-10-17
AU2011317943B2 (en) 2015-04-23

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