WO2005036073A1 - Modele ameliore de lit a absorbant solide et systeme de refrigeration absorbant comprenant ce lit - Google Patents

Modele ameliore de lit a absorbant solide et systeme de refrigeration absorbant comprenant ce lit Download PDF

Info

Publication number
WO2005036073A1
WO2005036073A1 PCT/CN2004/001120 CN2004001120W WO2005036073A1 WO 2005036073 A1 WO2005036073 A1 WO 2005036073A1 CN 2004001120 W CN2004001120 W CN 2004001120W WO 2005036073 A1 WO2005036073 A1 WO 2005036073A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
adsorption bed
carbon nanotubes
adsorbent
solid
Prior art date
Application number
PCT/CN2004/001120
Other languages
English (en)
Chinese (zh)
Inventor
Yongding Ouyang
Original Assignee
Yongding Ouyang
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
Priority claimed from CN 200310111220 external-priority patent/CN1605816A/zh
Application filed by Yongding Ouyang filed Critical Yongding Ouyang
Publication of WO2005036073A1 publication Critical patent/WO2005036073A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B01J20/205Carbon nanostructures, e.g. nanotubes, nanohorns, nanocones, nanoballs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B35/00Boiler-absorbers, i.e. boilers usable for absorption or adsorption
    • F25B35/04Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a solid as sorbent

Definitions

  • the present invention relates generally to solid-adsorption refrigeration technology, and in particular, to a solid-adsorption bed used in systems such as refrigeration, heating, dehumidification, and humidification. Background technique
  • the solid adsorption bed is the core component of the refrigeration system that utilizes the thermal effect of the solid adsorbent to adsorb and desorb the refrigerant (adsorbent) in the adsorption refrigeration system.
  • solid adsorption beds There are many forms of solid adsorption beds, but its basic composition and structure are: a shell, a heat transfer plate (sheet) arranged in the shell, a solid adsorbent close to the heat transfer plate (sheet), and The cold and heat source channels connected to the hot plate (sheet) pass through the adsorbent and have an inlet and outlet mass transfer channels on the shell; the solid adsorbent is usually zeolite, active silica gel, carbon fiber, metal hydride (such as Porous metal powder containing elements such as Ni, La, A1, and H), chlorides (such as calcium chloride, strontium chloride, barium chloride, nickel chloride), metal oxides (such as activated alumina), and so on.
  • metal hydride such as Por
  • the solid adsorbent causes the refrigerant in the mass transfer channel to form an adsorption and desorption effect through the heat exchange between the heat transfer plate (sheet) and the heat source and the cold source.
  • the gaseous refrigerant is adsorbed from the outside of the adsorption bed through the inlet of the mass transfer channel, or the desorbed refrigerant is sent out of the adsorption bed through the outlet of the mass transfer channel, so that the refrigerant circulates in the solid adsorption refrigeration system.
  • the commonly used adsorbents are mainly water, ammonia, methanol, ethanol, hydrogen, and other organic substances.
  • the heat and mass transfer performance in the solid adsorption bed and the heat capacity ratio of the adsorption bed affect the operation of the solid adsorption refrigeration system.
  • a key factor in efficiency In order to improve the heat and mass transfer performance of solid adsorption beds, improvements around the adsorption beds have been in progress. Row. The simpler method is to add some metal particles, such as copper powder and nickel foam, to the adsorbent; and embed metal ribs in the bed.
  • Cis.: 02240008.7 discloses an internal heat pipe type solid adsorption bed, the structure of which is shown in Figs. 8 and 9.
  • metal fins 43, 47, 48 and The mass transfer gaps 49 and 50 improve the heat transfer performance and mass transfer performance of the adsorption bed.
  • the addition of metal fins will increase the heat capacity ratio of the adsorption bed.
  • the addition of a mass transfer gap has a certain rationality, it cannot fundamentally improve the mass transfer performance of the adsorbent itself, but at the same time, it increases the volume of the adsorption bed. This has a negative impact on system efficiency.
  • the existing technology can not get out of such a weirdness around the improvement of the adsorption bed. That is, to strengthen the heat transfer of the adsorption bed, it is necessary to add some necessary thermal conductive sheets and metal particles or add more fluid. The heat transfer channel will inevitably lead to an increase in the heat capacity ratio of the adsorption bed and increase energy consumption. To enhance the mass transfer of the adsorption bed, it is necessary to reduce the bulk density of the adsorbent or increase the mass transfer channel in the adsorption bed. However, this increases the volume of the adsorbent bed and reduces the heat transfer performance in the adsorbent bed.
  • the thermal coefficient is 0.165W / (m ⁇ K)
  • the silica particle bed is 0.14-0.26W / (m ⁇ K)
  • the zeolite powder and polyaniline composite adsorbent is 0.24W / (m ⁇ K)
  • the Italian Restuccia and other developed The thin layer of composite adsorbent of zeolite and Al (OH) 3 close to the metal fin is 0.43W / (m.K)
  • the composite adsorbent of zeolite particles and graphite (Szarynski, 1998) is 5W / (m ⁇ K)
  • the composite adsorption of silica gel and graphite (Euu, 2000) is 10-16W / (m ⁇ K). Summary of the invention
  • the purpose of the present invention is to provide a new type of solid adsorption bed in view of the deficiencies and defects in the prior art, which aims to further improve the heat and mass transfer performance of the adsorption bed, and reduce the heat capacity ratio of the adsorption bed, thereby improving the overall
  • the efficiency of the refrigeration system promotes the practical application of solid adsorption refrigeration technology.
  • Another object of the present invention is to provide an adsorption refrigeration system including the solid adsorption bed.
  • An improved solid adsorption bed includes: a casing; a heat transfer plate disposed in the casing; a solid adsorbent closely attached to the heat transfer plate; a cold and heat source channel connected to the heat transfer plate; and It passes through an adsorbent and has an inlet and an outlet of a mass transfer channel on the outer shell; the feature is: the adsorbent is a carbon nanotube material, or a composite material of carbon nanotubes, or a mixture of carbon nanotubes .
  • the composite of carbon nanotubes is a composite of carbon nanotubes and one or more of the following materials: activated carbon, zeolite, silica gel, metal hydride, metal oxide, chloride, carbon fiber, and the like.
  • the mixture of carbon nanotubes is a mixture of carbon nanotubes and one or more of the following materials: activated carbon, zeolite, silica gel, metal hydride, metal oxide, chloride, carbon fiber, and the like.
  • It also includes multiple non-metallic network management channels in the form of mass transfer channels.
  • the carbon nanotubes are single-walled carbon nanotubes or multi-walled carbon nanotubes, and the tube diameter is
  • An adsorption refrigeration system includes the solid adsorption bed.
  • carbon nanotubes are nano-level super straws
  • low surface tension refrigerants such as water and ethanol
  • the surface tension of the capillary condensed matter should be less than 100-200mN / m), which just makes the carbon nanotubes able to interact with some refrigerants with large latent heat of evaporation (such as the latent heat of water as high as 2490kJ / kg at 5 ° C; the latent heat of ammonia evaporation) It can reach 1250kJ / kg at 5 ° C; the latent heat of methanol evaporation can reach 1170kJ / kg at 5 ° C, etc.).
  • carbon nanotubes are small-sized materials, they can properly fill many dead spaces existing in conventional adsorbent porous media that have no effect on adsorption, which is conducive to improving the performance of the gas refrigeration system of adsorption refrigeration. After testing, the heat transfer performance of the adsorbent has a positive correlation with the amount of carbon nanotubes.
  • the carbon nanotube-containing material of the present invention is used as an adsorbent, its amount can be determined in accordance with conventional techniques.
  • nano-material composite methods such as “stirring mixing method”, “grinding method”, “dry stamping composite method”, and “filling method”, which are well known to those skilled in the art can also be used.
  • the carbon nanotubes and one or two or more of the solid adsorbents commonly used in the art such as zeolite, activated carbon, silica gel, etc. are used as composite adsorbents or mixed adsorbents, and can also be embedded , Pressure curing or bonding Into multiple layers and other structures.
  • the carbon nanotube particles are easy to agglomerate, an appropriate surface modifier or dispersant should be selected. Dispersion power such as mechanical stirring and ultrasonic dispersion should be used to avoid phase separation. The amount of carbon nanotubes should be selected to meet the performance requirements.
  • the carbon nanotube powder is forcibly dispersed in other adsorbent matrices by mechanical forces (such as high-speed stirring, grinding dispersion, etc.) (a multi-phase dispersion) System), since carbon nanotubes are randomly combined with different phase-state adsorbent materials and each maintains its own phase state, the material has a synergistic effect, forming a superposition of the properties of each constituent element, thereby generating comprehensive performance.
  • the thermal conductivity of carbon nanotubes can reach 6000 W / (m ⁇ K) at room temperature.
  • the thermal conductivity of carbon nanotube materials currently measured has reached 1000-3000W / (m ⁇ K).
  • Test results show that the present invention
  • the thermal conductivity of the carbon nanotube-containing adsorbent of the adsorption bed is much higher than that of the adsorbent in the existing adsorption refrigeration technology, and it can even exceed the metal with the highest thermal conductivity.
  • the highest thermal conductivity of silver is only 411W / (m ⁇ ⁇ )
  • pure copper is 398 W / (m ⁇ K)
  • aluminum is 237W / (m ⁇ ⁇ ).
  • the thermal conductivity of carbon nanotubes can reach 6000 W / (m ⁇ K) at room temperature, and the ultimate specific surface area can reach 2630 m 2 / g (the measured specific surface area of carbon nanotube products has reached 600-1000 m 2 / above), which is equivalent to the specific surface area of adsorbents used in conventional adsorption refrigeration systems.
  • carbon nanotubes formed by means of preferred purification, opening, chopped carbon nanotubes in a discrete state, and physical and chemical activation to create defects on the walls of carbon nanotubes to form countless pinholes, etc. have a large specific surface area (such as In Chinese Patent Application No.:01108645.9 "A post-treatment method for increasing the specific surface area of carbon nanotubes", The specific surface area of the activated carbon nanotubes can reach 100-4000m 2 / g).
  • the carbon nanotubes can be made to exhibit excellent absorption and desorption characteristics through reasonable chemical or physical modification. With the in-depth study of carbon nanotubes, some products with higher thermal conductivity, larger specific surface area, and better heat and mass transfer performance will appear one after another.
  • the solid adsorption bed using the carbon nanotube-containing adsorbent of the present invention does not need to add too many mass transfer channels in order to improve its mass transfer capability, Therefore, the volume of the adsorption bed can be reduced, and the heat transfer can be accelerated; by using carbon nanotubes to highlight the excellent thermal conductivity, the adsorption bed can avoid the mass transfer of the adsorbent material by increasing its heat transfer performance and mass transfer in the prior art.
  • An adsorption bed with a carbon nanotube-containing adsorbent no longer needs to add metal fins or add certain metal particles to the adsorbent and a large number of heat exchangers to improve heat transfer performance
  • the fluid channel not only greatly reduces the structure, reduces the capacity of the adsorbent bed materials and the heat medium fluid, but also reduces the heat capacity ratio of the adsorption bed, so that the sensible heat loss of the adsorption bed and the heat loss of the retained heat medium fluid are large. To reduce, energy consumption is also reduced.
  • the use of carbon nanotubes in an adsorption refrigeration system can improve the solid adsorption bed with the existence of strange, contradictory and mutually restrictive heat transfer, mass transfer, and heat capacity ratios that exist in the technology.
  • the bed improves heat transfer performance and mass transfer performance for gaseous refrigerants, while reducing the heat capacity ratio, accelerating the rate of temperature rise and temperature decrease, increasing the amount of adsorption / desorption, shortening the cycle period, reducing volume and energy consumption. It is certain that these factors have directly promoted the improvement of the working efficiency and comprehensive performance of the adsorption refrigeration and heating system, and achieved practical purposes.
  • FIG. 1 is a schematic diagram of the application of the solid adsorption bed of the present invention in an adsorption refrigeration conduction heat recovery cycle system;
  • FIG. 2 is a schematic structural diagram of a regenerative device
  • Figure 3 is a sectional view of a piston-type water tank
  • Figure 4 is a schematic diagram of the internal heat and mass transfer structure of a conjoined adsorption bed
  • Figure 5, Figure 6, and Figure 7 show the three working states of the combined adsorption bed
  • FIG. 8 is a schematic structural diagram of an internal heat pipe type solid adsorption bed in the prior art (Chinese Patent No.:02240008.7);
  • FIG. 9 is a view A-A in FIG. 8;
  • FIG. 10 is a schematic structural diagram of an improved internal heat pipe type solid adsorption bed of the present invention.
  • Fig. 11 is a B-B view in Fig. 10. Detailed description of the preferred embodiment
  • Adsorption bed 1 2, piston water tank 3, heat collector 4, heat transfer conductor 5, regenerator 6, electromagnetic device 7, 8, thermal contact 9, 10, vacuum valve 11, 12, 15, 16, total Water valve 13, water tank 14, condenser 17, cooler 18, throttle 19, heat exchanger 20, evaporator 21, user 22, heat source 23, pipe 24, adsorbate channel port 25, conjoined adsorption Bed 26, adsorbate channel 27, carbon nanotube-containing adsorbent 28, adsorption bed housing (heat-conducting layer) 29, thermal insulation tank 30, 31, hot water tank 32, thermal insulation layer 33, regenerative on-off controller 34 , Heat transfer conductor 35, heat transfer layer 36, magnet 37, heat transfer conductor 38, adsorbent 39, adsorbent pipeline 40, inner sleeve 41, outer sleeve 42, horizontal fins 43, conventional solid adsorbent (excluding carbon (Nanotubes) 44, gas collecting tube 45, intermediate sleeve 46, longitudinal fins 47 and 48, and shield gaps 49 and 50.
  • the bed is driven by electric, hydraulic or tap water pressure Alternate heat exchange between the sources, and the heat transfer conductor of the regenerative device alternately switches back and forth between the two adsorption beds.
  • the arrows in the figure indicate the flow direction of the adsorbate, the solid arrows and the dashed arrows indicate two different working states.
  • the "cold” and “hot” next to the arrows in the figure respectively indicate the temperature state of the adsorbate when it flows in the direction of the arrow.
  • the energy source may be high- and low-grade thermal energy sources such as solar energy, geothermal heat, waste heat, building heat, exhaust heat, electric heat, and air heat 23.
  • the solid-adsorption refrigeration-conduction heat-recycling cycle system includes an adsorption bed 1, an adsorption bed 2, a reheating device 6, a condenser 17, a throttle valve 19, an evaporator 21, a valve 11, a valve 12, a valve 15, a valve 16, and a connecting pipe.
  • the adsorption bed may be a combined adsorption bed 26, and an adsorption bed is provided with an adsorbate channel 27, an adsorbent 28, a heat insulation bin 30, a regenerative device 6 (which can be built-in or external), and adsorption.
  • the heat source is a solar water heating device, which includes a solar heat collector 4, a piston water tank 3, a pipeline 24, or a combination thereof.
  • the desorption state bed can be heated by other auxiliary heat sources such as natural gas and electricity;
  • the piston water tank 3 is provided with a heat insulation tank 31, a hot water tank 32, a magnet 37, a heat transfer conductor 38, a heat insulation layer 33, or a combination thereof.
  • the piston water tank 3 can also be changed to a fixed water tank, which passes the heat transfer conductor. The heat transfer is performed across the distance with the adsorption bed.
  • the cooling device includes a main water valve 13, a water tank 14, a heat transfer conductor 5, a heat transfer contact 9, 10, a pipeline, or a combination thereof.
  • the heating purpose can be achieved for the user.
  • the heat transfer conductor 5 and the heat transfer contact The heads 9, 10 communicate.
  • the cooling device includes a cold accumulator 18, a heat exchanger 20, a user end 22, a pipeline, or a combination thereof.
  • the cold accumulator 18 is provided with a cold storage liquid and a heat transfer conductor.
  • FIG. 2 shows a schematic structural diagram of a regenerative device.
  • the regenerative device is provided with a regenerative on-off controller 34 for controlling the alternate conversion of regenerative on-off.
  • the heat transfer conductor 35 is made of a carbon nanotube material to ensure good thermal conductivity.
  • Figure 3 is a cross-sectional view of a piston-type water tank, wherein, the heat insulation tank 31, the hot water tank insulation layer 33 plays a role of heat insulation of the hot water tank 32; the magnet 37 can drive the heat on-off controller 34; 32 can be a pressure-resistant chamber, and if necessary, the water temperature can reach above 100 ° C to help improve the desorption speed and select more working fluid pairs.
  • FIG. 4 is a schematic diagram of the internal heat and mass transfer structure of the conjoined adsorption bed, in which the adsorbate channel opening 25 communicates with the adsorbent channels 27 uniformly distributed in the adsorbent 28 so that the adsorbent energy can smoothly communicate with the adsorbent 28 Adsorption and desorption are performed; the adsorbent 28 is made of carbon nanotubes or is compounded or mixed with other materials at a certain ratio to form a carbon nanotube composite or mixture, such as the following One or more types: activated carbon, zeolite, silica gel, metal hydride, metal oxide, chloride, carbon fiber, etc.
  • the adsorbent 28 is in close contact with the bed of the adsorption bed (heat conducting layer) 29 to ensure good heat and mass transfer performance; the heat insulation chamber 30 may be a vacuum chamber to facilitate the reheating device 6 and the adsorption beds 1 and 2
  • the regenerative on and off cycles alternate and the necessary isolation between them.
  • the carbon nanotube-containing adsorbent 28 can also be made into a multilayer composite structure by laminating or bonding. Since this multilayer composite technology is the prior art, the present invention does not describe it.
  • carbon nanotubes are small-sized nanomaterials, they have good contact with thermally conductive plates, sheets, and solid adsorbents such as zeolites, activated carbon, and silica gel, and their thermal conductivity is much higher than that of metals, thereby reducing the metal thermally conductive plates, sheets, and The contact thermal resistance between the solid adsorbents greatly improves the heat transfer performance.
  • carbon nanotubes can be ultrasonically dispersed in an ethanol solution of a solid adsorbent such as activated carbon fiber at room temperature to obtain a uniformly dispersed mixed solution, and then ground, washed, and dried to obtain a carbon nanotube-containing adsorbent. .
  • a certain proportion of colloidal liquid (binder) and the adsorbent can be mixed together for molding, and the obtained block-shaped carbon nanotube-containing adsorbent material is activated and dried at high temperature.
  • adsorbent materials with suitable self-adhesive properties such as Wall carbon nanotubes
  • powder injection molding can also be performed.
  • the operation process is as follows: Open the main water valve 13 to fill the water tank 14 with water, assuming that the starting state is shown in FIG. 5, that is, the adsorption bed 1 is in the end of the desorption state and the temperature is high.
  • the adsorption bed 2 is in the end of the adsorption state and the temperature is low;
  • the regenerative device 6 and the adsorption beds 1 and 2 are in the disconnected state and the reheating is cut off;
  • the electromagnetic device 7 is in the energized and attracted state.
  • the power of the electromagnetic device 7 is disconnected, and the piston-type hot water tank 3 is pushed to the middle position under the action of the rebound force, that is, the state shown in FIG.
  • the on-off controller 34 controls the regenerative device 6 in contact with the adsorption beds 1 and 2 to conduct heat transfer between the two beds.
  • the adsorption bed 1 starts to cool down rapidly, and the adsorption bed 2 starts to heat up rapidly, forming a large temperature difference fluctuation, until the temperature of the adsorption bed 1, 2 is balanced, the recuperation ends, and the temperature rise and temperature stop; at this time, the electromagnetic device 8 is energized, so that the piston-type hot water tank 3 is in FIG. 7 In the state, the adsorption bed 2 is heated, and the adsorption bed 1 is cooled by the thermal contact 9.
  • the reheating device 6 is driven to be disconnected from the adsorption beds 1, 2 and the reheating is turned off.
  • the adsorption bed 1 is at the end of the adsorption state and the temperature is low, while the adsorption bed 2 is at the end of the desorption state and the temperature is high.
  • the power of the electromagnetic device 8 is disconnected, and the live-action hot water tank 3 is pushed to the middle position under the action of the rebound force, that is, the state shown in FIG. 6, so that the adsorption beds 1, 2 are isolated from cold and heat sources, and
  • the regenerative on-off controller 34 controls the regenerative device 6 and the adsorption beds 1 and 2 to conduct conduction and start the regenerative heat transfer in the two beds.
  • the adsorption bed 2 starts to quickly
  • the adsorption bed 1 starts to heat up rapidly, forming a large temperature difference fluctuation.
  • the thermally conductive metal fins (fins), metal particles, and heat medium fluid channels are eliminated in the adsorption bed of the present invention, thereby reducing the heat capacity ratio and simplifying the structure. Due to the excellent heat transfer performance of the carbon nanotube-containing adsorbent 28, the high-efficiency and energy-saving purpose of the ideal conduction and regenerative cycle is achieved, and the evaporator 21 can continuously and uninterruptedly be cooled during this entire process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

La présente invention concerne un lit à absorbant solide (absorbeur) utilisé dans un système de réfrigération à absorbant solide. Outre un carter, ce système comprend, d'une part des éléments de transfert thermique équipant le carter, d'autre part un absorbant solide contre les éléments de transfert thermique, mais aussi une amenée de source froide ou chaude reliée aux éléments de transfert thermique, et enfin des voies de transfert en masse traversant le sorbant et pourvus d'orifices d'amenée et d'évacuation sur le carter. En l'occurrence, le sorbant est un matériau en nanotube de carbone, ou un matériau composé à base de nanotubes de carbone, ou un matériau en mélange de nanotubes de carbone. Le rendement de transfert thermique et de masse du lit à absorbant solide utilisant un tel absorbant est fortement accru. En s'affranchissant, non seulement des ailettes métalliques thermoconductrices des éléments de transfert thermique, mais aussi des passages de fluide caloporteur selon l'état antérieur de la technique, il a été possible de simplifier la structure du lit absorbant, ce qui a également diminué la capacité thermique spécifique du lit absorbant. L'invention concerne également un système de réfrigération absorbant comportant ce lit à absorbant solide.
PCT/CN2004/001120 2003-09-28 2004-09-28 Modele ameliore de lit a absorbant solide et systeme de refrigeration absorbant comprenant ce lit WO2005036073A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN03143398.7 2003-09-28
CN03143398 2003-09-28
CN 200310111220 CN1605816A (zh) 2003-10-10 2003-10-10 一种改进的固体吸附床
CN200310111220.3 2003-10-10

Publications (1)

Publication Number Publication Date
WO2005036073A1 true WO2005036073A1 (fr) 2005-04-21

Family

ID=34436148

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2004/001120 WO2005036073A1 (fr) 2003-09-28 2004-09-28 Modele ameliore de lit a absorbant solide et systeme de refrigeration absorbant comprenant ce lit

Country Status (1)

Country Link
WO (1) WO2005036073A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013001390A1 (fr) * 2011-06-30 2013-01-03 International Business Machines Corporation Dispositifs d'échange thermique à adsorption
CN110617647A (zh) * 2019-10-17 2019-12-27 哈尔滨商业大学 基于活性炭/纳米矿晶/石墨烯致密化复合吸附剂的吸附式制冷系统及方法
CN114797772A (zh) * 2022-04-02 2022-07-29 中国科学院理化技术研究所 吸附薄膜及其制备方法和用于低温系统的电加热吸附床
CN115264989A (zh) * 2014-01-10 2022-11-01 百瑞空气工程(亚洲)有限公司 混合吸附热交换装置和制造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183227A (en) * 1977-01-17 1980-01-15 Exxon Research & Engineering Co. Heat pump
JPH0842935A (ja) * 1994-07-27 1996-02-16 Mayekawa Mfg Co Ltd 吸着式冷却装置及びその冷熱出力制御方法
JPH1072201A (ja) * 1996-08-30 1998-03-17 Toyota Motor Corp 水素貯蔵方法
CN2325718Y (zh) * 1998-04-03 1999-06-23 中国科学院工程热物理研究所 回热式固体吸附制冷机改进
CN1332699A (zh) * 1998-12-28 2002-01-23 大阪瓦斯株式会社 无定形纳米级碳管及其制造方法
CN1398664A (zh) * 2002-08-28 2003-02-26 武汉理工大学 储氢金属或储氢合金修饰的一维纳米碳储氢材料
CN2566197Y (zh) * 2002-07-05 2003-08-13 北京理工大学 一种内热管式固体吸附床

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183227A (en) * 1977-01-17 1980-01-15 Exxon Research & Engineering Co. Heat pump
JPH0842935A (ja) * 1994-07-27 1996-02-16 Mayekawa Mfg Co Ltd 吸着式冷却装置及びその冷熱出力制御方法
JPH1072201A (ja) * 1996-08-30 1998-03-17 Toyota Motor Corp 水素貯蔵方法
CN2325718Y (zh) * 1998-04-03 1999-06-23 中国科学院工程热物理研究所 回热式固体吸附制冷机改进
CN1332699A (zh) * 1998-12-28 2002-01-23 大阪瓦斯株式会社 无定形纳米级碳管及其制造方法
CN2566197Y (zh) * 2002-07-05 2003-08-13 北京理工大学 一种内热管式固体吸附床
CN1398664A (zh) * 2002-08-28 2003-02-26 武汉理工大学 储氢金属或储氢合金修饰的一维纳米碳储氢材料

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013001390A1 (fr) * 2011-06-30 2013-01-03 International Business Machines Corporation Dispositifs d'échange thermique à adsorption
CN103597299A (zh) * 2011-06-30 2014-02-19 国际商业机器公司 吸附热交换器装置
US10533779B2 (en) 2011-06-30 2020-01-14 International Business Machines Corporation Adsorption heat exchanger devices
CN115264989A (zh) * 2014-01-10 2022-11-01 百瑞空气工程(亚洲)有限公司 混合吸附热交换装置和制造方法
CN110617647A (zh) * 2019-10-17 2019-12-27 哈尔滨商业大学 基于活性炭/纳米矿晶/石墨烯致密化复合吸附剂的吸附式制冷系统及方法
CN110617647B (zh) * 2019-10-17 2024-03-19 哈尔滨商业大学 基于活性炭/纳米矿晶/石墨烯致密化复合吸附剂的吸附式制冷系统及方法
CN114797772A (zh) * 2022-04-02 2022-07-29 中国科学院理化技术研究所 吸附薄膜及其制备方法和用于低温系统的电加热吸附床
CN114797772B (zh) * 2022-04-02 2022-11-22 中国科学院理化技术研究所 吸附薄膜及其制备方法和用于低温系统的电加热吸附床

Similar Documents

Publication Publication Date Title
Wang et al. Adsorption refrigeration—an efficient way to make good use of waste heat and solar energy
JP5904697B2 (ja) 吸着式ヒートポンプ
JP5482681B2 (ja) 蓄熱装置
JP2017508121A (ja) ハイブリッド吸着装置熱交換デバイスおよび製造方法
US4138861A (en) Solid adsorption air conditioning apparatus and method
Yang et al. Ammonia-based chemisorption heat pumps for cold-climate heating applications: A comprehensive review
Kiplagat et al. Enhancement of heat and mass transfer in solid gas sorption systems
JPH10286460A (ja) 成形用吸着剤と、一体成形構造の吸着熱交換器
CN1888725A (zh) 单合金压缩-扩散式金属氢化物热泵/制冷方法及系统
WO2005036073A1 (fr) Modele ameliore de lit a absorbant solide et systeme de refrigeration absorbant comprenant ce lit
Zheng et al. Effect of design and operating parameters on the performance of two-bed sorption heat pump systems
US9488393B2 (en) Adsorption cell, adsorption cluster and adsorption compressor as well as method of operating an adsorption compressor
CN110657603B (zh) 一种磁制冷换热器和制冷制热系统及方法
JP2550768B2 (ja) 吸着熱交換器
Zhang et al. Influential factors and optimization analysis of adsorption refrigeration system performance
CN111174458A (zh) 一种用于室温磁制冷的径向微元回热系统及制冷方法
CN102679617A (zh) 一种压缩驱动吸附制冷方法及热泵系统
CN102072584A (zh) 一种紧凑型吸附式制冷装置
CN100507405C (zh) 白天连续式太阳能吸附制冷系统
Narayanan et al. Recent advances in adsorption-based heating and cooling systems
CN1995867A (zh) 薄壁热管式真空管集热器-吸附床一体化制冷系统
CN1605816A (zh) 一种改进的固体吸附床
CN101251315A (zh) 磁制冷机主动式回热器的磁工质床及其传热方法
CN201145447Y (zh) 基于烧结多孔材料的吸附式制冷装置
CN2524179Y (zh) 用于太阳能制冷空调中的大口径真空管吸附发生器

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase