EP2844933A1 - Dispositif et procede de production continue de froid par voie thermochimique - Google Patents
Dispositif et procede de production continue de froid par voie thermochimiqueInfo
- Publication number
- EP2844933A1 EP2844933A1 EP13726012.1A EP13726012A EP2844933A1 EP 2844933 A1 EP2844933 A1 EP 2844933A1 EP 13726012 A EP13726012 A EP 13726012A EP 2844933 A1 EP2844933 A1 EP 2844933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reactor
- thermochemical
- gas
- reaction
- reactive
- 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.)
- Pending
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
- F25D5/00—Devices using endothermic chemical reactions, e.g. using frigorific mixtures
-
- 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
- F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
- F25B17/083—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt with two or more boiler-sorbers operating alternately
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
- B60N2/3038—Cushion movements
- B60N2/3063—Cushion movements by composed movement
- B60N2/3065—Cushion movements by composed movement in a longitudinal-vertical plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/32—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use
- B60N2/36—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform
- B60N2/366—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles convertible for other use into a loading platform characterised by the locking device
-
- 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
- F25B2315/00—Sorption refrigeration cycles or details thereof
Definitions
- the present invention relates to a device and a method for producing thermochemically cold and more specifically to a device and a process capable of producing cold in a quasi-continuous and controlled manner.
- thermochemical system is placed in controlled communication with a reservoir containing the gas under liquid phase.
- the liquid gas contained in the tank vaporizes, which absorbs a certain amount of heat, so that the tank cools, and this gas is absorbed by the reagent product thus generating the aforesaid reaction chemical, so that the reactor is the source of a release of heat.
- the reaction is complete, if the product contained in the reactor is heated, the absorbed gas is released into the reaction product and the latter then condenses in the reservoir.
- the object of the present invention is therefore to propose a thermochemical cold generating device and method which is able to operate in a continuous or quasi-continuous manner and in a totally controlled manner.
- the subject of the present invention is thus a thermochemical system for producing refrigeration of the type using at least one reactive device comprising a reactor, or chamber for storing a reactive product capable of absorbing a gas, the reactive product and the gas being such that, when they are brought into contact with each other, they are the object of a reaction having the effect of the absorption of the gas by the reactive product and, conversely, they are the subject of a desorption reaction of the gas absorbed by the reactive product by heating applied to the reactive product when the latter has absorbed gas,
- this system comprising two substantially identical reactive devices arranged in such a way that it operate in opposition of the cycle so that when the reactor of one operates in absorption, the reactor of the other operates in desorption, characterized in that it comprises means for determining the rate of advancement of said thermochemical reaction.
- thermochemical reaction makes it possible to know the reserve of energy remaining in the thermochemical system at any moment and in particular before the end of each operating phase.
- a condenser and an evaporator will be arranged between each reactor and each tank.
- the condenser and / or the evaporator will be common to both reactors.
- the tanks can be provided with means capable of measuring the quantity of liquefied gas present in each of them, in particular by measuring the quantity of gas that enters and / or leaves each of them or by measuring, by means of level sensors, the level of liquefied gas in each of them.
- connection means capable, in particular at the end of each cycle, of isolating the two reactors from the other elements of the system and of connecting them together, so as to ensure a transfer of the gas of a reactor to the other reactor.
- connection means will preferably consist of solenoid valves controlled by programmable electronic control means, in particular a microcontroller.
- the subject of the present invention is also a thermochemical cold production process of the type using at least one reactive device consisting of a reactor containing a reactive product capable of absorbing a gas contained in a reservoir able to be placed in communication with a reactor. condenser and an evaporator, this reactive product and the gas being such that, when they are brought into contact, they are the subject of a thermochemical reaction having the effect of the absorption of the gas by the reactive product and, conversely, they are the subject of a desorption reaction of the gas absorbed by the reactive product under the effect of a heating applied to this reactive product when the latter has absorbed gas, in which two reactive devices are used which are operated in phase opposition so that, when the reactor of one operates in absorption, the reactor of the other operates in desorption, characterized in that it comprises means for controlling the rate of advance of said thermochemical reaction.
- the process according to the invention may advantageously comprise a step during which the amount of liquefied gas present in the tanks is measured, in particular by measuring the quantity of liquefied gas that enters and / or leaves them.
- This method may also include a step of measuring the levels of liquefied gas contained in the tanks and stop the process when the liquid level in the reservoir associated with the reactor being absorbed reaches a low limit and the level of liquid in the reservoir associated with the reactor being desorbed will reach a high limit.
- said low limit of the level sensor of a tank will be adjusted so that, when the liquefied gas reaches this level, the rate of progress of the reaction of the associated reactor is at its rate of advance of the desired reaction as maximum.
- the said upper limit of the level sensor will be adjusted so that, when the liquefied gas reaches this level, the rate of progress of the reaction of the reactor which is associated with it either at its rate of progress of the desired reaction as minimal.
- priority will be given to the one who has reached the low level. More precisely when the first level threshold reached by a reservoir will be a low level, priority will be given to the reactor associated with this reservoir and the latter will be isolated from one evaporator until the other reservoir has reached its level. up to interrupt the process by closing the communication valve of this tank with the condenser.
- the two reactors will be put in communication and the two reactors will be maintained until the pressures existing in the latter are equal.
- FIG. 1 is a schematic representation of a system according to the invention during the process in which, when one reactor is operating in absorption, the other reactor operates in desorption,
- FIG. 2 is a schematic representation of the system represented in FIG. 1 after interruption of the process and in a step of placing the two reactors in communication,
- FIG. 3 is a diagrammatic representation of the system represented in FIGS. 1 and 2 in a step of pressurizing the operation of the two reactors
- FIG. 4 is a graph showing the variation of the pressure in each of the two reactors during one operating cycle
- thermochemical system which is shown diagrammatically in FIGS. 1 to 3, essentially comprises two reactors 1a and 1b which contain a reactive product, for example, in particular barium chloride or calcium chloride, and two reservoirs 3a and 3b which contain a specific liquid gas capable of reacting with the reactive product in a reaction as set forth below, and which may especially be ammonia.
- a reactive product for example, in particular barium chloride or calcium chloride
- reservoirs 3a and 3b which contain a specific liquid gas capable of reacting with the reactive product in a reaction as set forth below, and which may especially be ammonia.
- the reactive product and the specific gas are such that the reactive product is capable, by an exothermic thermochemical reaction, of absorbing the gas and then restoring it, by a reverse thermochemical reaction, when heating the product of reaction.
- the respective inputs 5a and 5b of the reactors 1a and 1b are connected to a first input of two solenoid valves arranged in parallel, namely a solenoid valve 7a and a solenoid valve for the reactor 1a and a solenoid valve 7b and a solenoid valve 7'b for the reactor lb. Furthermore a solenoid valve 11 combines the two inputs 5a and 5b.
- the second inlet of the solenoid valve 7a and the second inlet of the solenoid valve 7b are connected together and to an evaporator 13, while the second inlet of
- the solenoid valve 7 'a and the second inlet of the solenoid valve 7'b are joined together and at the inlet 15a of a condenser 15.
- the outlet 15b of the latter is connected to a first inlet of two parallel solenoid valves respectively 17a and 17b, and the second inlet of each of them is respectively joined to an inlet of two respective tanks 3a and 3b.
- the exit of each of the reservoirs 3a and 3b is connected, via respective solenoid valves 21a and 21b, to the evaporator 13.
- control means in particular a microcontroller not shown in the drawing.
- FIG. 1 Such a process is shown in FIG. 1 in which the solenoid valves which are placed in the closed position by the microcontroller are shown in black.
- reactor 1a to regenerate the reactive product contained in reactor 1a, the latter is heated, for example by means of an electrical resistance, which has the effect of releasing the gas absorbed by the reactive product, namely ammonia. , which passes through the solenoid valve 7 'a, which is in the open position, to condense in the condenser 15 and, through the solenoid valve 17a, which is in the open position, to gain the reservoir 3a in which the level rises as represented by the arrow Fl.
- the reactor 1b is in absorption mode (cold production) and, for this purpose, is connected to the evaporator 13 via the solenoid valve 7b, which is in the open position, and the reservoir 3b is connected to the evaporator by the solenoid valve 21b which is in the open position.
- the level of liquid in the tank 3b decreases as represented by the arrow F2.
- thermochemical system is a function of the rate of progress of the reaction X Ma x at the end of absorption and the rate of progress of the reaction X M i n at the end of desorption.
- rates of progress of the reaction depended on the application considered.
- means for controlling are used. It is therefore important to be able to measure the progress rates of the reaction X of each of the reactors.
- these two rates of progress of the reaction are controlled by controlling the levels of liquefied gas inside the tanks 3a and 3b.
- the latter are provided with liquid level measurement probes, respectively
- the senor 23b of the reservoir 3b is regulated so that, when the level of the liquefied gas reaches its low level N b the rate of progress of the reaction of the reactor lb is equal to the rate of advance of the desired maximum reaction ⁇ ⁇ 3 ⁇ 4 ⁇ ⁇
- the reactor is desorbed and the tank 3a fills with liquefied gas, and the sensor 23a thereof is regulated so that when the level of the liquefied gas reaches its high level h, the rate of progress of the reactor reaction la is equal to the rate of progress of the desired minimal reaction
- the operating phase is thus stopped as soon as the high threshold values N h and low threshold values N b are reached.
- a threshold value first (which of course occurs in the majority of cases) it is the indication of the low level which is first taken into account.
- the rate of progress of the reaction of each of the reactors 1a and 1b is controlled by means capable of measuring the quantity of liquefied gas that enters and / or leaves reservoirs 3a and 3b.
- FIGS. 1 In another advantageous embodiment of the present invention, which is shown in FIGS.
- the reactors 1a and 1b are isolated from the evaporator 13 and the condenser 15 by closing the valves 7 'a and 7b, and then in communication, at time tl, the two reactors 1a and 1b by opening the solenoid valve 11.
- each of the reactors 1a and 1b comprises a pressure measuring sensor 27a, 27b respectively, or preferably differential pressure measuring means existing in the two reactors 1a and 1b.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1201285A FR2990267B1 (fr) | 2012-05-03 | 2012-05-03 | Dispositif et procede de production continue de froid par voie thermochimique |
PCT/FR2013/050951 WO2013164539A1 (fr) | 2012-05-03 | 2013-04-30 | Dispositif et procede de production continue de froid par voie thermochimique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2844933A1 true EP2844933A1 (fr) | 2015-03-11 |
Family
ID=46514448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13726012.1A Pending EP2844933A1 (fr) | 2012-05-03 | 2013-04-30 | Dispositif et procede de production continue de froid par voie thermochimique |
Country Status (8)
Country | Link |
---|---|
US (1) | US9719712B2 (fr) |
EP (1) | EP2844933A1 (fr) |
JP (1) | JP2015521271A (fr) |
CN (1) | CN104272038B (fr) |
BR (1) | BR112014027093A2 (fr) |
CA (1) | CA2872250A1 (fr) |
FR (1) | FR2990267B1 (fr) |
WO (1) | WO2013164539A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US9982931B2 (en) * | 2015-04-28 | 2018-05-29 | Rocky Research | Systems and methods for controlling refrigeration cycles of sorption reactors based on recuperation time |
CN112484546B (zh) * | 2020-10-19 | 2022-08-02 | 桂林电子科技大学 | 一种基于钙基吸附剂的中低温热化学循环储能系统及其方法 |
CN112594999B (zh) * | 2020-11-26 | 2022-03-25 | 南方医科大学南方医院 | 一种化学制冷的药物转运箱的控制方法、系统及设备 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59206047A (ja) * | 1983-05-09 | 1984-11-21 | Matsushita Refrig Co | 吸着材料 |
DE3408192A1 (de) * | 1984-03-06 | 1985-09-19 | Markus 8085 Erding Rothmeyer | Verfahren zum hochtransformieren der temperatur von waerme sowie waermetransformator |
DE3408193A1 (de) * | 1984-03-06 | 1985-09-19 | Markus 8085 Erding Rothmeyer | Verfahren zum erhoehen der temperatur von waerme sowie waermepumpe |
JPS6160071U (fr) * | 1984-09-27 | 1986-04-23 | ||
JPS62112969A (ja) * | 1985-11-13 | 1987-05-23 | 日立造船株式会社 | ケミカルヒ−トポンプ |
JPS6488071A (en) * | 1987-09-28 | 1989-04-03 | Mitsubishi Electric Corp | Reactor |
JPH0765816B2 (ja) | 1989-02-28 | 1995-07-19 | 西淀空調機株式会社 | 吸着式冷凍機とその運転方法 |
US5598721A (en) * | 1989-03-08 | 1997-02-04 | Rocky Research | Heating and air conditioning systems incorporating solid-vapor sorption reactors capable of high reaction rates |
FR2653541B1 (fr) * | 1989-10-24 | 1995-02-10 | Elf Aquitaine | Dispositifs pour produire du froid et/ou de la chaleur par reaction solide-gaz geres par caloducs gravitationnels. |
JPH065293B2 (ja) * | 1991-02-08 | 1994-01-19 | 岩谷産業株式会社 | エネルギー分散型x線検出器冷却用液化ガス貯蔵容器での液化ガス蒸発防止装置及びその制御方法 |
FR2704772B1 (fr) * | 1993-04-02 | 1995-06-30 | Elf Aquitaine | Procédé de mise en Óoeuvre de réactions du type gaz-solide dans lequel le solide réactant renferme un sel au moins partiellement hydraté. |
GB9613211D0 (en) * | 1996-06-24 | 1996-08-28 | Johnson Matthey Plc | Improvements in heat transfer materials |
JP4281180B2 (ja) * | 1999-11-10 | 2009-06-17 | 株式会社デンソー | 吸着式冷凍機 |
JP2004014444A (ja) * | 2002-06-11 | 2004-01-15 | Mitsubishi Heavy Ind Ltd | 燃料電池発電システム |
JP2005230797A (ja) * | 2003-07-30 | 2005-09-02 | Tosoh Corp | ヒートポンプ用ゼオライトを含む吸着剤およびその製造方法並びにその用途 |
US8302425B2 (en) * | 2004-05-11 | 2012-11-06 | Cyclect Singapore Pte Ltd. | Regenerative adsorption system with a spray nozzle for producing adsorbate vapor and condensing desorbed vapor |
JP2005331347A (ja) * | 2004-05-19 | 2005-12-02 | Hitachi Maxell Ltd | 測定システム |
ES2552819T3 (es) * | 2008-06-19 | 2015-12-02 | Sortech Ag | Procedimiento para la realización de una transmisión de calor entre unos adsorbedores que trabajan en alternancia y dispositivo del mismo |
DE102008053828A1 (de) * | 2008-10-30 | 2010-05-12 | Airbus Deutschland Gmbh | Verbessertes Adsorptionskühlsystem und Adsorptionskühlverfahren für ein Luftfahrzeug |
JP2010151386A (ja) * | 2008-12-25 | 2010-07-08 | Noritz Corp | 吸着式ヒートポンプ |
JP5494041B2 (ja) * | 2010-03-12 | 2014-05-14 | 株式会社デンソー | ケミカルヒートポンプ装置 |
FR2985003A1 (fr) * | 2011-12-27 | 2013-06-28 | Coldway | Dispositif de chauffage et de refrigeration simultane de deux volumes |
-
2012
- 2012-05-03 FR FR1201285A patent/FR2990267B1/fr not_active Expired - Fee Related
-
2013
- 2013-04-30 BR BR112014027093A patent/BR112014027093A2/pt not_active IP Right Cessation
- 2013-04-30 US US14/391,037 patent/US9719712B2/en not_active Expired - Fee Related
- 2013-04-30 EP EP13726012.1A patent/EP2844933A1/fr active Pending
- 2013-04-30 CA CA2872250A patent/CA2872250A1/fr not_active Abandoned
- 2013-04-30 JP JP2015509474A patent/JP2015521271A/ja active Pending
- 2013-04-30 WO PCT/FR2013/050951 patent/WO2013164539A1/fr active Application Filing
- 2013-04-30 CN CN201380022934.9A patent/CN104272038B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2013164539A1 * |
Also Published As
Publication number | Publication date |
---|---|
US9719712B2 (en) | 2017-08-01 |
CN104272038A (zh) | 2015-01-07 |
JP2015521271A (ja) | 2015-07-27 |
BR112014027093A2 (pt) | 2017-06-27 |
FR2990267B1 (fr) | 2018-04-06 |
US20150068220A1 (en) | 2015-03-12 |
CA2872250A1 (fr) | 2013-11-07 |
FR2990267A1 (fr) | 2013-11-08 |
WO2013164539A1 (fr) | 2013-11-07 |
CN104272038B (zh) | 2017-04-12 |
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