CN1370968A - Integral valveless adsorbed solar refrigerator - Google Patents
Integral valveless adsorbed solar refrigerator Download PDFInfo
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- CN1370968A CN1370968A CN 02110912 CN02110912A CN1370968A CN 1370968 A CN1370968 A CN 1370968A CN 02110912 CN02110912 CN 02110912 CN 02110912 A CN02110912 A CN 02110912A CN 1370968 A CN1370968 A CN 1370968A
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- adsorbent bed
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Abstract
The integral valveless adsorbed solar refrigerator has lumpy adsorbing material coated in thin copper sheet filled in the adsorption bed, heat insulating material filled peripherally, transparent fiber cover plate on the upper surface, adsoption bed connected directly to condensator and evaporator in ice groove, condensator fin pipe comprising stainless steel base pipe and aluminium fins, evaporator with trapezoidal section, open-mouthed ice groove of stainless steel sheet, casing of polyurethane and movable support. It can be made in refrigerator system with small heat collecting area or with relatively larger heat collecting area and is suitable for use in area with rich solar energy resource.
Description
Technical field:
The present invention relates to a kind of solar energy refrigerator, relate in particular to a kind of adsorbed solar refrigerator of integral valveless, belong to technical field of solar utilization technique.
Background technology:
After entering 21 century, human understanding to sustainable development has begun widely to accept.No matter the application and development of solar refrigeration still is that the angle of the energy all accounts for critical role sustainable development from now on from environmental protection.Wherein the solar energy solid absorption refrigeration has that apparatus structure is simple, operation is convenient, need not advantage such as operating cost, demonstrates its distinctive superiority aspect energy-conserving and environment-protective.The France scholar has built plate absorption type ice machine (Pons M in the eighties, Guilleminot JJ.Design of an experimental solar-powered, solid-adsorption ice maker.Trans.of the ASME, Journal of Solar EnergyEngineering, 1986,108 (4): 332～337.).This ice machine is the typical structure that flat plate collector and absorber are made of one, and its heat collector is by four 1.5m
2The thermal-arrest plate form, the solar radiant energy that the thermal-arrest plate is collected adds heat-adsorbent by thermal-arrest plate surface and heat transfer fin, the introducing owing to the heat transfer fin has strengthened the bearing capacity of upper and lower surface, and has improved heat-transfer effect.For solving heat dissipation problem, between glass cover-plate and adsorbent bed, set up the grid window, so that allow cool ambient air directly cool off heat collector, take away the absorption heat simultaneously, but brought operation and the inconvenience of making at night.American scholar heats solar refrigerating device (the Headley O S of adsorbent bed with the parabolic heat collector that focuses on (CPC), Kohdiwala A F, Doom I A.Charcoal-methanol adsorption refrigerator powered by a compound parabolic concentrating solarcollect.Solar Energy, 1994,53 (2): 191～197), the maximum characteristics of this device are the temperature height of heating adsorbent bed, even Sun Day photograph radiation intensity is lower or radiated time is shorter, also can make the abundant desorbs refrigerant of adsorbent in the absorbing cylinder produce sweat cooling.Shortcoming is that manufacturing cost is too high, and has only 2% solar radiant energy to be converted to the heat of heating adsorbent bed, and the cost of system is uneconomic.Plate type solar ice machine device (the Headley O S that the Nigeria scholar constitutes, Kohdiwala A F, Doom I A.Charcoal-methanol adsorption refrigerator powered by a compound parabolic concentrating solar collect.Solar Energy, 1994,53 (2): 191～197), adsorbent (calcium chloride, active carbon) is filled in the metal tube, in the mass transfer channel of metal tube center arrangement one concentric pipe, metal tube is bonded on the surface of heat collector then as cold-producing medium.The advantage of this structure is the heat transfer efficiency height, and adsorbent can reach very high temperature in the adsorbent bed, thereby can make cold-producing medium obtain desorb well; Because adsorbent bed is round tubulose, has bearing capacity preferably simultaneously.The shortcoming of this structure is that the adsorbent mass of being piled up in the absorbing cylinder is less, so refrigerating capacity is less relatively, manufacturing cost is than flat thermal-arrest absorber height; And the heat radiation of adsorbent bed need add cooling circuit in addition, if want practicability, also need improve the accumulating amount of adsorbent in the adsorbent bed and further reduce manufacturing cost.In the present solar adsorbing type refrigerator device both domestic and external, mostly adopt adsorbent bed, condenser, choke valve, several big parts of evaporimeter are connected with pipeline with valve, and in system, set up liquid reservoir and receive the refrigerant liquid that desorbs from adsorbent, such structure makes solar energy refrigerator all meet with obstruction from the stable of manufacturing cost auto levelizer performance.From known all kinds of research reports, the sorbing material that solidifies is not applied in the adsorbing generator manufacturing process of system.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, a kind of adsorbed solar refrigerator of integral valveless is provided, make whole apparatus structure compactness, superior performance, stable.
For realizing such purpose, in the technical scheme of the present invention, directly adsorbent bed, condenser, evaporator tube road are connected, and be placed in movably on the support.Fill several block sorbing materials in the adsorbent bed, the block sorbing material of each blockage is wrapped up by sheet copper, and sheet copper both can prevent the sorbing material absent-mindedness, but double as heat transfer fin again.Block adsorbent adopts the porous media that solidifies, have the good heat transfer mass transfer characteristic.Adsorbent bed in the system is made rectangular shape by corrosion resistant plate (1-1.5mm is thick), inside is filled with adsorbent, adsorbent is active carbon or silica gel, cold-producing medium is methyl alcohol or water, select for use active carbon-methyl alcohol working medium right when system needs ice making, system selects for use silica gel-water right as refrigeration working medium during as refrigerating box.Sorbing material is through being solidified to form bulk, and the assurance system has stronger heat-transfer capability when heating.In addition, can place the stainless steel tube with mass transfer through hole and strengthen the mass transfer ability in adsorbent bed, also can directly leave certain space as mass transfer channel in the bottom of adsorbent bed, the assurance system has effect preferably when desorb and absorption.After the adsorbent bed body is carried out, insert the insulation material of 40-50mm all around, and coat the endothermic effect that selective material increases adsorbent bed at the top.In addition, place the vitreous fibre cover plate, so that form the heat absorption greenhouse effects on the adsorbent bed body in place from adsorbent bed body upper surface 50mm.The adsorbent bed below directly joins with condenser with a pipe and links to each other.Condenser is made with finned tube, and finned tube adopts stainless steel (or copper pipe) bottom tube-aluminium fin to make.Evaporimeter is made the shape of ladder type section with corrosion resistant plate, and the ice groove is made the square shape of upper surface open by corrosion resistant plate, and refrigerator shell is formed by the polyurethane material foaming.Adsorbent bed, condenser, evaporimeter can directly link to each other, the valve syndeton in the middle of saving.Evaporimeter is placed directly in the ice groove of dress water, and the refrigerating capacity that is produced when the adsorbents adsorb cold-producing medium is directly passed to water and forms ice cube in the ice groove, and is incubated in refrigerator shell, uses for the user.Whole system is positioned on the support of wheel, can move easily.
The present invention will be solidified the accumulation sorbent material of the adsorbent replacement conventional particles shape of back excellent performance, improve the right absorption property of absorption working pair, effectively strengthen the heat transfer property of adsorbent, improve the efficient of system.Cavernous structure on the block sorbing material has constituted mass transfer channel, has effectively guaranteed the efficient heat transfer mass-transfer performance of adsorbent.Valveless of the present invention directly connects as one adsorbent bed, condenser, evaporimeter, has saved the valve connection, and whole system only needs a valve carry out filling of cold-producing medium, makes system architecture simple, and dismounting, maintenance are all very convenient, easy to utilize.
Whole system of the present invention has safe and reliable, steady performance, both the refrigerator system that can make little collector area easily independently used, also can be according to the different requirements of user to refrigerating capacity, the mini-system that heat collector is integrated into certain area uses, and can generally be applicable to the area of solar energy resources than horn of plenty.
The description of drawings and the specific embodiment:
Accompanying drawing 1 is a structural representation of the present invention.
As shown in the figure, adsorbed solar refrigerator of the present invention mainly is made up of adsorbent bed 2, condenser 5, evaporimeter 7, ice groove 8 etc., fill the block sorbing materials that wrap up by sheet copper by cuboid adsorbent bed 2 inside that corrosion resistant plate is made, be filled with insulation material 3 all around, the adsorbent bed upper surface is placed vitreous fibre cover plate 1, places stainless steel tube in the adsorbent bed 2 and strengthens the mass transfer ability.Adsorbent bed 2 directly links to each other with the condenser 5 that the stainless steel bottom tube-the aluminium fin is made by below connecting pipe 6, condenser 5 links to each other with the evaporimeter 7 of stainless steel ladder type section shape, evaporimeter 7 is placed directly in the ice groove 8 of dress water, ice groove 8 is made the square shape of upper surface open by corrosion resistant plate, and refrigerator shell 9 is formed by the polyurethane material foaming.Directly link to each other the valve syndeton in the middle of having saved between adsorbent bed 2, condenser 5, the evaporimeter 7.Whole system is positioned on the refrigerator support 4 of wheel, can move easily.
The course of work of systemic circulation is as follows: circulation is since morning, when The sun came up, adsorbent bed 2 is accepted Sun Day according to emittance, and the temperature of adsorbent in the adsorbent bed is raise, the corresponding rising of the pressure of cold-producing medium, have only a spot of cold-producing medium working medium to desorb this moment.Reinforcement along with the solar radiation energy, when adsorbent bed inner refrigerant pressure when evaporating pressure is elevated to the pairing saturation pressure of condensation temperature, be adsorbed a cold-producing medium that interior adsorbent is adsorbed and constantly desorb, and enter in the evaporimeter 7 after in condenser 5, being condensed into liquid.At dusk, adsorbent bed cools off gradually with the disappearance of photograph on solar day, correspondingly temperature and pressure descend in the adsorbent bed, adsorbent begins to adsorb the refrigerant liquid in the evaporimeter, thereby the process of start vaporizer refrigeration, the cold that is discharged in the cold-producing medium evaporation process is passed to the water of icing in the groove 8 by evaporimeter 7, and makes water freezing, and this process is performed until second day morning.When system moved, be the heating desorption process daytime, and be the absorption refrigeration process evening, and the ice cube of making evening uses for the user by day.The ice that is drawn is incubated by outcase of refrigerator 9, takes out the back and uses for the user in second day.
Embodiment one (1m
2Heat collector)
Adopting the solar adsorbing type refrigerator of the above-mentioned valveless of the present invention, is 18～22MJ/m accepting the solar radiation energy
2Prerequisite under, through one day circulation, can provide day ice-making capacity a 4～6kg to the external world.This product approximately needs adsorbent 20kg, and cold-producing medium 6kg, the volume of adsorbing type refrigerator are 80 liters.The family that this product is suitable for three mouthfuls of people uses, and the cost price of product is in 1800 yuan/platform after the industrialization.
Embodiment two (3m
2Heat collector)
Adopting the solar adsorbing type refrigerator of above-mentioned valveless, is 18～22MJ/m accepting the solar radiation energy
2Prerequisite under, through one day circulation, can provide day ice-making capacity a 15～18kg to the external world.This product approximately needs adsorbent 60kg, and cold-producing medium 18kg, the volume of adsorbing type refrigerator are 150 liters.This product is suitable for outlying district infirmary and preserves medical vaccine, and the cost price of product is in 5000 yuan/platform after the industrialization.
Embodiment three (5m
2Heat collector)
Adopting the solar adsorbing type refrigerator of above-mentioned valveless, is 18～22MJ/m accepting the solar radiation energy
2Prerequisite under, through one day circulation, can provide day ice-making capacity a 30～35kg to the external world.This product approximately needs adsorbent 100kg, and cold-producing medium 30kg, the volume of adsorbing type refrigerator are 210 liters.This product can satisfy catering trade refrigeration needs in the small collectives daily lifes such as small scale-farm, frontier sentry, and the cost price of product is in 8000 yuan/platform after the industrialization.
Embodiment four (10m
2Heat collector)
Adopting the solar adsorbing type refrigerator of above-mentioned valveless, is 18～22MJ/m accepting the solar radiation energy
2Prerequisite under, through one day circulation, can provide day ice-making capacity a 60～70kg to the external world.This product approximately needs adsorbent 200kg, and cold-producing medium 60kg, the volume of adsorbing type refrigerator are 300 liters.This product can satisfy the demand of catering trade refrigeration consumption in the daily life of small-sized village, and the cost price of product is in 15000 yuan/platform after the industrialization.
The present invention also can be according to user's special requirement, design 20m
2, 30m
2Big system make cold storage box and use.
Claims (3)
1, a kind of adsorbed solar refrigerator of integral valveless, form by adsorbent bed (2), condenser (5), evaporimeter (7) etc., it is characterized in that the inner block sorbing material of filling of adsorbent bed (2) by the sheet copper parcel, be filled with insulation material (3) all around, the adsorbent bed upper surface is placed vitreous fibre cover plate (1), adsorbent bed (2) directly links to each other with condenser (5) and the evaporimeter (7) that is placed in the ice groove (8) of adorning water by connecting pipe (6), refrigerator shell (9) adopts the polyurethane expanded material, and whole system is positioned on the refrigerator support (4) of wheel.
2, as the adsorbed solar refrigerator of the said integral valveless of claim 1, the finned tube that it is characterized in that condenser (5) is made by stainless steel or copper pipe bottom tube-aluminium fin, evaporimeter (7) is a stainless steel ladder type section shape, and ice groove (8) is made the square shape of upper surface open by corrosion resistant plate.
3, as the adsorbed solar refrigerator of the said integral valveless of claim 1, it is characterized in that the cavernous structure on the block sorbing material constitutes mass transfer channel in the adsorbent bed (2), place the stainless steel tube of strengthening the mass transfer ability in the adsorbent bed (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02110912 CN1370968A (en) | 2002-02-27 | 2002-02-27 | Integral valveless adsorbed solar refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02110912 CN1370968A (en) | 2002-02-27 | 2002-02-27 | Integral valveless adsorbed solar refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1370968A true CN1370968A (en) | 2002-09-25 |
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|---|---|---|---|
| CN 02110912 Pending CN1370968A (en) | 2002-02-27 | 2002-02-27 | Integral valveless adsorbed solar refrigerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392333C (en) * | 2005-11-10 | 2008-06-04 | 上海交通大学 | Indoor solar DC cold-storing refrigerating apparatus |
| CN105423597A (en) * | 2015-12-29 | 2016-03-23 | 云南师范大学 | Novel adsorptive type refrigeration system adopting solar engineering tube to collect heat |
| CN106524572A (en) * | 2016-11-17 | 2017-03-22 | 哈尔滨商业大学 | Water heater and refrigerator compound device utilizing solar energy and conversion method |
-
2002
- 2002-02-27 CN CN 02110912 patent/CN1370968A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392333C (en) * | 2005-11-10 | 2008-06-04 | 上海交通大学 | Indoor solar DC cold-storing refrigerating apparatus |
| CN105423597A (en) * | 2015-12-29 | 2016-03-23 | 云南师范大学 | Novel adsorptive type refrigeration system adopting solar engineering tube to collect heat |
| CN105423597B (en) * | 2015-12-29 | 2017-10-24 | 云南师范大学 | A kind of adsorption refrigeration system of new type solar energy engineering pipe thermal-arrest |
| CN106524572A (en) * | 2016-11-17 | 2017-03-22 | 哈尔滨商业大学 | Water heater and refrigerator compound device utilizing solar energy and conversion method |
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