CN101782291A - Adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe - Google Patents

Adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe Download PDF

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Publication number
CN101782291A
CN101782291A CN200910052740A CN200910052740A CN101782291A CN 101782291 A CN101782291 A CN 101782291A CN 200910052740 A CN200910052740 A CN 200910052740A CN 200910052740 A CN200910052740 A CN 200910052740A CN 101782291 A CN101782291 A CN 101782291A
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CN
China
Prior art keywords
heat pipe
solar thermal
thermal collector
adsorbent bed
heat
Prior art date
Application number
CN200910052740A
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Chinese (zh)
Inventor
陈威
杨瑞
孙祯
Original Assignee
上海海事大学
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Publication date
Application filed by 上海海事大学 filed Critical 上海海事大学
Priority to CN200910052740A priority Critical patent/CN101782291A/en
Publication of CN101782291A publication Critical patent/CN101782291A/en

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Classifications

    • 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
    • F25B27/00Machines, plant, or systems, using particular sources of energy
    • F25B27/002Machines, plant, or systems, using particular sources of energy using solar energy
    • F25B27/007Machines, plant, or systems, using particular sources of energy using solar energy in sorption type systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

The invention discloses an adsorption refrigeration device driven by a parabolic solar thermal collector and a heat pipe, which comprises a condensing circulation loop formed by connecting an adsorbent bed, a condenser, an ammoniacal liquor storage device and an evaporator sequentially, the parabolic solar thermal collector and the high-efficiency heat pipe. The parabolic solar thermal collector carries out heat transfer with the adsorbent bed through the high-efficiency heat pipe. The adsorption refrigeration device converts the solar radiation energy into latent heat of the working fluid by using the high-efficiency parabolic solar thermal collector and the high-efficiency heat and mass transfer heat pipe, heats an adsorbent from the inside of the adsorbent bed to make the adsorbent have better resolving effect; and simultaneously, fins are arranged in a condensing section of the heat pipe so as to strengthen the heat dissipating capacity of the heat pipe and greatly improve the heat transfer efficiency.

Description

Adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe
Technical field
The present invention relates to a kind of equipment for collecting solar energy technical field, particularly be a kind of adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe.
Background technology
The solar adsorption-type refrigerating system can not continuous cooling except having the circulation of general absorption type refrigerating, the adsorbent bed heat and mass transfer performance is poor, absorption, the desorb required time is long, cycle period is long, system's control lag time is long, refrigeration work consumption is little, coefficient of refrigerating performance is little, outside the shortcomings such as capacity usage ratio is low, also have distinctive two big defectives: one, solar adsorption-type refrigerating circulation generally can not continuous coolings, and cycle period is very long, generally reach 24 hours, evening, refrigeration did not meet idle call energy rule yet, had limited the application of solar adsorption-type refrigerating greatly; Its two, solar energy is low-grade energy, and can not continue energy supply, present solar energy heating technology is difficult to guarantee high temperature and stable driving heat source, so system needs lower actuation temperature.Current, the solar adsorption-type refrigerating technology is also very immature, the solar adsorption-type refrigerating model machine that has only minority to be used for ice making emerges, also have very big distance from practicability, promote the practicalization of solar adsorption-type refrigerating, key is: improve heat-collecting temperature and reduce the system drive temperature, effectively realize continuous cooling, improve energy utilization ratio, shorten cycle period, improve refrigerating capacity and coefficient of refrigerating performance or the like.
Summary of the invention
It is not high that the present invention has overcome above-mentioned collecting efficiency, refrigerating capacity is little, coefficient of refrigerating performance is low, required collector area is big, take shortcoming such as more space, and provide a kind of latent heat of phase change that makes full use of working fluid in the heat pipe, from the inside of adsorbent bed adsorbent is heated, make it have better parsing effect, to improve the adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe of system's solar collecting performance and refrigeration performance.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe, it comprises the condensing circuit that is connected to form successively by adsorbent bed, condenser, ammoniacal liquor reservoir, evaporimeter, it is characterized in that, it also comprises parabolic type solar thermal collector and high-efficiency heat pipe, described parabolic type solar thermal collector connects adsorbent bed by heat pipe, carries out heat transmission with adsorbent bed.
Described heat pipe is divided into evaporator section and condensation segment, and described evaporator section is enclosed within the all-glass vacuum thermal-collecting tube on the parabolic type solar thermal collector, and the fin to the adsorbent bed heat radiation is installed on the described condensation segment.
Described all-glass vacuum thermal-collecting tube appearance is posted an one deck nanoporous SiO that plays the wide band antireflective effect 2Film.
Described adsorbent bed is the cylinder type adsorbent bed of built-in active carbon porous medium layer.
Described heat pipe is inserted into adsorbent bed inside.
Described heat pipe is a hollow metal pipe, is with capillary wick on the pipe outer wall of described hollow metal pipe, and described capillary wick is communicated with the inner chamber of hollow metal pipe.
Heat pipe evaporator section of the present utility model surface is with all-glass vacuum thermal-collecting tube, and the outer tube wall of all-glass vacuum thermal-collecting tube posts one deck nanoporous SiO 2Film plays the wide band antireflective effect, and the radiant energy that compiles is converted into heat energy, and the working fluid in the hollow metal pipe of opposite heat tube evaporator section heats, and makes its evaporation, and pressure raises simultaneously, drives steam and moves to the condensation segment of heat pipe.
The utility model is provided with the optically focused reflection that section is arcuation by the parabolic type solar thermal collector, and the possibility that makes full use of luminous energy not only is provided, and the radiant energy that converges improves the energy-flux density of inside heat pipe, and the output temperature of heat pipe condensation end is improved.
Described heat pipe is inserted into adsorbent bed inside, utilize working fluid latent heat from adsorbent bed inside to its heat supply, make its heat transfer efficiency and resolve effect and improve greatly, thereby improve refrigerating efficiency, refrigerating capacity and the COP of whole system.
The present invention utilizes efficient parabolic type solar thermal collector and efficient caloic to transmit heat pipe solar radiant energy is converted into working fluid latent heat, from the inside of adsorbent bed adsorbent is heated, make it have better parsing effect, simultaneously, at heat pipe condenser section fin is installed, its heat-sinking capability is strengthened, and heat transfer efficiency improves greatly.Compare with traditional plate solar collector adsorption refrigeration system, under same given parameter condition, there are higher collecting efficiency, bigger refrigerating capacity and COP in this system.Simultaneously, this system does not need liquid pump, and without any moving component, running is quiet, and is pollution-free, and floor space is littler, easy to use.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a structural representation of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
With reference to figure 1: a kind of adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe, it comprises the condensing circuit 14 that is connected to form successively by adsorbent bed 9, condenser 4, ammoniacal liquor reservoir 5, evaporimeter 7, it also comprises parabolic type solar thermal collector 1 and high-efficiency heat pipe 2, and parabolic type solar thermal collector 1 carries out heat transmission by high-efficiency heat pipe 2 and adsorbent bed 9.Between adsorbent bed 9 and condenser 4, pass through a magnetic valve 3 control connections, and an expansion valve 6 is set also between ammoniacal liquor reservoir 5 and evaporimeter 7, high-efficiency heat pipe 2 is a hollow metal pipe 15, be with capillary wick 10 on the pipe outer wall of hollow metal pipe 12, capillary wick 10 is communicated with the inner chamber of hollow metal pipe 15.Whole high-efficiency heat pipe 2 is divided into evaporator section 12 and condensation segment 13, evaporator section 12 is enclosed within the all-glass vacuum thermal-collecting tube 11 on the parabolic type solar thermal collector 1, be equipped with to the fin 16 of adsorbent bed 9 heat radiation on this condensation segment 13 and be inserted in the adsorbent bed 9, all-glass vacuum thermal-collecting tube 11 appearances are posted one deck nanoporous SiO 2Film can play the effect of wide band antireflective like this, 9 cylinder type adsorbent beds that adopt built-in active carbon porous medium layer of adsorbent bed.
By the parabolic type solar thermal collector optically focused reflection that section is arcuation is set, the possibility that makes full use of luminous energy not only is provided, and the radiant energy that converges improves the energy-flux density of high-efficiency heat pipe 2 inside, the output temperature of heat pipe 2 condensation ends 13 is improved.
High-efficiency heat pipe 2 is inserted into adsorbent bed 9 inside, utilize working fluid latent heat from adsorbent bed 9 inside to its heat supply, make its heat transfer efficiency and resolve effect and improve greatly, thereby improve refrigerating efficiency, refrigerating capacity and the COP of whole system.
Be connected with magnetic valve 8 between evaporimeter 7 and the adsorbent bed 9, the reflective interior surfaces of parabolic type solar thermal collector 1 gathers solar radiant energy on the evaporator section 12 of high-efficiency heat pipe 2, the radiant energy that compiles is converted into heat energy, working fluid in the hollow metal pipe 15 of evaporator section 12 is heated, make its evaporation, pressure raises simultaneously, drives steam and moves to the condensation segment 13 of high-efficiency heat pipe 2.After steam arrives condensation segment 13, hollow metal pipe 15 and fin 16 thereof by condensation segment 13 dispel the heat to adsorbent bed 9, emit latent heat, and self is condensed into liquid state, under the capillary force effect of capillary wick 10, turn back to the evaporator section 12 of heat pipe 2 then, constantly repeat this running.Daytime, the latent heat that adsorbent is emitted owing to condensation segment 13 working fluids that obtain heat pipe 2 is heated, in the pressure in the adsorbent bed 9 reaches condenser 4 during the saturation pressure of ammoniacal liquor, resolving begins, ammonia steam desorption from the active carbon porous medium layer comes out, enter into condenser 4 and be condensed into ammoniacal liquor, be stored in then in the ammoniacal liquor reservoir 5.To evening, environment temperature reduces, adsorbent bed 9 temperature decrease, and when the pressure in the adsorbent bed 9 was reduced to the pressure of saturated ammonia steam in the evaporimeter, the ammoniacal liquor in the ammoniacal liquor reservoir 5 was under pressure differential, through expansion valve 6 throttling step-downs, evaporation in evaporimeter 7 produces cold, gets back to then in the adsorbent bed 9 and is adsorbed by the active carbon porous medium layer, finish adsorption process, and so forth circulation.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (6)

1. adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe, it comprises the condensing circuit that is connected to form successively by adsorbent bed, condenser, ammoniacal liquor reservoir, evaporimeter, it is characterized in that, it also comprises parabolic type solar thermal collector and high-efficiency heat pipe, described parabolic type solar thermal collector connects adsorbent bed by heat pipe, carries out heat transmission with adsorbent bed.
2. adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe according to claim 1, it is characterized in that, described heat pipe is divided into evaporator section and condensation segment, described evaporator section is enclosed within the all-glass vacuum thermal-collecting tube on the parabolic type solar thermal collector, and the fin to the adsorbent bed heat radiation is installed on the described condensation segment.
3. adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe according to claim 2 is characterized in that, described all-glass vacuum thermal-collecting tube appearance is posted one deck nanoporous SiO 2Film.
4. adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe according to claim 1 is characterized in that, described adsorbent bed is the cylinder type adsorbent bed of built-in active carbon porous medium layer.
5. adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe according to claim 1 is characterized in that described heat pipe is inserted into adsorbent bed inside.
6. adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe according to claim 1, it is characterized in that, described heat pipe is a hollow metal pipe, is with capillary wick on the pipe outer wall of described hollow metal pipe, and described capillary wick is communicated with the inner chamber of hollow metal pipe.
CN200910052740A 2009-06-09 2009-06-09 Adsorption refrigeration device driven by parabolic solar thermal collector and heat pipe CN101782291A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252480A (en) * 2011-05-19 2011-11-23 河南新飞电器有限公司 Solar energy refrigerator
CN102494811A (en) * 2011-12-26 2012-06-13 上海海事大学 Apparatus for accurately testing heat loss in solar adsorption cooling tube under high temperature condition
CN103256729A (en) * 2013-05-23 2013-08-21 上海交通大学 High-capacity combination type solar energy thermochemistry cascaded heat storage device and solar energy application
CN104567028A (en) * 2015-01-17 2015-04-29 浙江大学 Improved heat transmission and accumulation solar heat collection device
CN105222397A (en) * 2015-09-23 2016-01-06 太原理工大学 A kind of photovoltaic and photothermal combines the solar adsorption-type refrigerating system driving enhanced heat exchange
CN105890219A (en) * 2016-04-12 2016-08-24 殷翠萍 Solar ammonia absorption type refrigerating system
CN106482557A (en) * 2016-09-14 2017-03-08 上海交通大学 The heat chemistry absorption heat-pipe apparatus that a kind of utilization low grade heat energy drives
CN106931681A (en) * 2017-04-14 2017-07-07 东南大学 A kind of solar refrigeration system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252480A (en) * 2011-05-19 2011-11-23 河南新飞电器有限公司 Solar energy refrigerator
CN102252480B (en) * 2011-05-19 2013-04-17 河南新飞电器有限公司 Solar energy refrigerator
CN102494811A (en) * 2011-12-26 2012-06-13 上海海事大学 Apparatus for accurately testing heat loss in solar adsorption cooling tube under high temperature condition
CN103256729A (en) * 2013-05-23 2013-08-21 上海交通大学 High-capacity combination type solar energy thermochemistry cascaded heat storage device and solar energy application
CN103256729B (en) * 2013-05-23 2015-12-02 上海交通大学 Large Copacity combined solar chemistry step high effective heat-storage device and application
CN104567028A (en) * 2015-01-17 2015-04-29 浙江大学 Improved heat transmission and accumulation solar heat collection device
CN105222397A (en) * 2015-09-23 2016-01-06 太原理工大学 A kind of photovoltaic and photothermal combines the solar adsorption-type refrigerating system driving enhanced heat exchange
CN105222397B (en) * 2015-09-23 2017-06-16 太原理工大学 A kind of photovoltaic and photothermal joint drives the solar adsorption-type refrigerating system of enhanced heat exchange
CN105890219A (en) * 2016-04-12 2016-08-24 殷翠萍 Solar ammonia absorption type refrigerating system
CN106482557A (en) * 2016-09-14 2017-03-08 上海交通大学 The heat chemistry absorption heat-pipe apparatus that a kind of utilization low grade heat energy drives
CN106482557B (en) * 2016-09-14 2019-04-19 上海交通大学 A kind of heat chemistry absorption heat-pipe apparatus using low grade heat energy driving
CN106931681A (en) * 2017-04-14 2017-07-07 东南大学 A kind of solar refrigeration system

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Application publication date: 20100721