CN102322704B - Semiconductor refrigerating and absorptive refrigerating interactive device - Google Patents
Semiconductor refrigerating and absorptive refrigerating interactive device Download PDFInfo
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- CN102322704B CN102322704B CN 201110289491 CN201110289491A CN102322704B CN 102322704 B CN102322704 B CN 102322704B CN 201110289491 CN201110289491 CN 201110289491 CN 201110289491 A CN201110289491 A CN 201110289491A CN 102322704 B CN102322704 B CN 102322704B
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Abstract
The invention relates to a semiconductor refrigerating and absorptive refrigerating interactive device. The main characteristics of two mechanisms, namely semiconductor refrigerating and absorbable refrigerating, are combined. The PN junction end face of a hot end and a cold end of a semiconductor refrigerator is respectively and tightly connected with outer end faces of grid sheet type heat absorbers in two absorber units. A silicon-controlled relay module is used for controlling the power-on, the power-off, the output power of semiconductor refrigerator assemblies and changing current direction so that the cold end and the hot end are exchanged. Under the control of instructions of a single chip microcomputer control unit, the two semiconductor refrigerator assemblies and four same heat absorber units matched with the same can be used for interactively carrying out the circulation operation of heating/desorption and cooling/absorption according to programs, therefore, the refrigerating agent of an evaporator continuously generates cold and outputs the cold. The low-voltage direct-current power is supplied. The semiconductor refrigerating and absorptive refrigerating interactive device has the advantages of simple structure, small volume, no rotary part, no noise, no poison, no pollution, firmness and durability. The energy refrigerating efficiency is greatly increased. A styling product can be rapidly formed so that the requirements of movable carriers, such as vehicles, ships, naval vessels and the like, and specific field ranges, such as field, remote and mountain areas, islands and the like being applicable to solar and wind energy power generation, on a refrigerating air-conditioning device can be satisfied.
Description
Technical field
The present invention relates to a kind of semiconductor cross absorption refrigerating plant, belong to the technical field that semiconductor refrigerating combines with absorption refrigeration.
Background technology
Absorption refrigeration is by a kind of material (absorbent) absorption and desorption of another kind of material (cold-producing medium) to be received, and produces the phase-state change of material, thereby follows the heat absorption and release process.What application was maximum at present is lithium bromide absorption refrigeration equipment, and as cold-producing medium, lithium bromide is as absorbent with water.Lithium bromide is nontoxic white crystal, and is very easily water-soluble.Under uniform temp, the steam-laden partial pressure on the lithium bromide water solution liquid level is much smaller than the saturated partial pressure of pure water, thereby strong hygroscopicity is arranged; And lithium bromide water solution liquid concentration is higher, temperature is lower, and the steam-laden partial pressure on the liquid level is just less.Under identical temperature conditions, the ability that lithium bromide water solution absorbs aqueous vapor is just stronger, the theoretical foundation of common lithium bromide absorption refrigeration equipment refrigeration that Here it is.Lithium bromide water absorption refrigerating plant utilizes heat energy to be power, lithium bromide water solution/water is working medium pair, has odorless, nontoxic, harmless, without advantages such as high pressure explosion dangers, over nearly more than 30 years, as big-and-middle-sized air conditioning facility, at home and abroad be widely used, be the important composition part of refrigerating field.Because its machine volume is large, parts are many, must be furnished with a cover thermal source, cooling source system, and the lithium bromide water solution crystallization causes the solution pump fault and damages the factor such as complete machine operation, at some lithium bromide water absorption refrigerating plants that need to use in little, simple in structure, the robust particular surroundings of volume breakthrough arranged not yet so far.
Semiconductor refrigerating claims again thermoelectric cooling, thermoelectric cooling.It is the application of back wash effect peltier effect (Peltier Effect) aspect Refrigeration Technique of Seebeck effect (Seeback Effect), and along with the development of semi-conducting material technology, semiconductor refrigerating has become a kind of novel refrigeration modes.So-called Peltier effect, refer to when the galvanic couple of DC current by two kinds of semi-conducting materials compositions of bismuth telluride of heavily doped N-type and P type to the time, the one end absorbs heat, the phenomenon of other end heat release.If the sense of current conversely, then cold and hot end is changed mutually.Because it is less that galvanic couple produces hot and cold effect, on the industrial production of semiconductor devices, be with tens, up to a hundred electrical coupling made semiconductor cooling device (being commonly called as thermoelectric pile), the user forms more powerful refrigeration, heating combined equipment system with several device series and parallels.Semiconductor refrigeration structure is simple, the machinery-free moving component, and volume is little, and reliability is strong, noiseless, friction, long-life; The semiconductor cooling device thermal inertia is very little, and the cooling and warming time is very fast, and changes the sense of current and can realize that the refrigerated medium hot junction exchanges, and regulates size of current and can regulate and control the output of refrigerated medium heat.Semiconductor cooler is exactly in fact the electron heat pump of current-control type, equals input electric power P and cold junction refrigeratory capacity Qc sum: Qh=P+Qc at hot junction liberated heat Qh; Cold junction refrigeratory capacity Qc equals the poor of hot junction liberated heat Qh and input electric power P: Qc=Qh-P.The hot junction heating efficiency of semiconductor cooler is very high, forever greater than 1, but the refrigerating efficiency of cold junction is general not high, when the environment refrigeration application, the refrigerating capacity of cold junction by the hot junction effectively distribute heat limit, these deficiencies are for many suitable semiconductor refrigerating technology characteristics, and the further expansion in the field of the certain refrigeration work consumption of demand is used and is restricted again.
Semiconductor refrigerating, two kinds of refrigeration mechanisms of absorption refrigeration and characteristics in conjunction with complementation, are developed the New Refrigerating device that is fit to some aspect demand, and perhaps this is valuable approach.The technical scheme of Chinese patent CN200810172252.7 is unidirectional the utilization in the semiconductor refrigerating process, the heat that the hot junction produces promotes absorption refrigeration, three road circulating pipe systems such as working medium circulation, solution circulation, gas circulation in the cooling system of semiconductor refrigerating, have been settled, the pattern of lithium-bromide absorption-type refrigerating machine is followed in its circulation process and configuration, complete machine structure very complicated, specific implementation are also difficult.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art scheme, a kind of new semiconductor cross absorption refrigerating plant is provided, power with low-voltage dc power supply, simple in structure, volume is little, no-rotary part, essentially no noise, nontoxic pollution-free, sturdy and durable, can improve significantly energy refrigerating efficiency, but with the demand of the special dimension scopes such as the field of satisfying the mobile vehicles such as vehicle, boats and ships naval vessels and applied solar energy powered by wind energy, outlying mountain area, island to refrigerating air conditioning device.For achieving the above object, the technical program combines the main feature of semiconductor refrigerating and two kinds of mechanism of absorption refrigeration, in absorber unit, be provided with the grid gilled radiator, be placed with absorbent solution in the absorber unit, the grid gilled radiator is submerged in the absorbent solution, the PN junction end face of the hot junction of a semiconductor cooler assembly and cold junction respectively with 2 absorber unit in grid gilled radiator outer face close-coupled, single-chip microcomputer industry control unit instruction controllable silicon relay module control semiconductor cooler assembly power supply break-make and power output, changing the load current direction exchanges cold and hot end, the mutual operation of the hot junction of a semiconductor cooler assembly and cold junction, 2 absorber unit that driven in synchronism links heat/separate absorption, the mutual operation of cooling/absorption, 4 absorber unit that structure is identical that complete machine has disposed two semiconductor cooler assemblies and has been complementary with it, under the instruction control of single-chip microcomputer industry control unit, two semiconductor cooler assemblies carry out refrigeration end and the mutual operation that heats end according to program, and the absorbent that has driven in 4 absorber unit carries out weak solution heating/desorb getter heat release/be converted into concentrated solution according to program; Concentrated solution cooling/absorption refrigeration agent aqueous vapor/be converted into the continuous interactive circular flow of weak solution causes the heat absorption of constantly gasifying of evaporimeter inner refrigerant working medium to produce cold.
As shown in drawings, 3 is absorber unit, and A, B, C, D are the identical absorber unit of structure.Be provided with grid gilled radiator 7 in the absorber unit, the absorber unit lateral surface is slightly stretched out on the heat input/output terminal plane of radiator, seam crossing seam sealing.The absorbent of placing in the absorber unit is the halogen alkali metal salt, such as lithium chloride, lithium bromide, calcium chloride etc., can be single component, also can be salt-mixture.Absorbent can be solution, also can be pressed powder.Use when admittedly stopping absorbent, absorbent should be made cellular, with radiator good contact is arranged, to obtain better heat transfer and and refrigerated medium working medium mass transfer effect.Cold-producing medium working medium can be selected water or ethanol according to the refrigeration purposes.Absorbent and cold-producing medium form refrigeration working medium pair.The description of description of contents of the present invention is take the halogen aqueous solution of alkali metal salt as absorbent, and water is cold-producing medium, and most applicable cases can be taked the refrigeration working medium pair of the two composition.Grid gilled radiator 7 is submerged in the absorbent solution, there is certain aqueous vapor mass transfer space the solution top in the absorber unit, the liquid level superjacent air space is provided with stainless steel tilted grid plate net 6, can stop the refrigerating plant that is installed on the mobile vehicle to jolt because of vibrations and cause splashing of solution.
In absorber unit, be provided with specific gravity sensor 4 and the temperature sensor 5 of absorbent solution, by the monitoring of these two data, concentration and temperature value that can the Real-time Obtaining absorbent, this effective operation to system is very important.The absorber unit skin is covered with polyurethane foam plastics with extraneous adiabatic.Link to each other with absorber unit and to be connected to cold-producing medium Working medium gas water flow pass-out and to enter pipeline 9, aqueous vapor can circulate, and one of them arm is connected with condenser 1 (L1, L2) by magnetic valve (or the logical controlled one-way pressure valve of threshold value that closes) F1 (F1a, F1b, F1c, F1d); Another arm is connected with evaporimeter 14 by magnetic valve (or the logical controlled one-way pressure valve of threshold value that closes) F2 (F2a, F2b, F2c, F2d).Water leg 10 is arranged under the condenser, and the liquefaction water that condenses in the groove is back in the evaporimeter through capillary 12.Absorber unit, condenser (containing water leg), evaporimeter form mass transfer Flowing Space system between a cold-producing medium and the absorbent by pipeline, pump air and become vacuum state to make internal system pressure only be water vapor pressure.Cold-producing medium water is housed in the evaporimeter 14, is provided with cooling-water temperature sensor 13, the housing outer wall is covered with the exhausted bed course of polyurethane foam plastics.The cold way of output of evaporimeter is decided by the refrigeration purposes.Be provided with ambient temperature sensor 11.
Semiconductor refrigerating can adopt the structure of one-level refrigeration or two-stage refrigeration, and accompanying drawing is depicted as the one-level semiconductor refrigeration structure.The grid gilled radiator outer face A-A close-coupled that arranges in the PN junction end face a-a of semiconductor cooler assembly E1 and the absorbent unit A; The grid gilled radiator outer face B-B close-coupled that arranges in the other end b-b of PN junction and the absorber unit B.Semiconductor cooler assembly E2 adopts same connecting with absorber unit C, D.
Be provided with the single-chip microcomputer industry control unit (hereinafter to be referred as the industry control unit) 15 that is consisted of by single-chip microcomputer and peripheral components, the sensor information input bus such as the proportion of each absorber unit absorbent solution and temperature, evaporimeter inner refrigerant temperature, environment temperature are arranged on the industry control unit; The signal output bus of control magnetic valve F1 (F1a, F1b, F1c, F1d), F2 (F2a, F2b, F2c, F2d) running; Control controllable silicon relay module is to the holding wire of semiconductor cooler assembly E1, E2 power supply running; Also have refrigerating plant equipment fault alarm signal to show and output that the user can in time find and get rid of fault on the industry control unit.
By the controllable silicon relay module (hereinafter to be referred as silicon controlled module) 20 that controllable silicon and associated electrical components and parts consist of, it meets low-voltage dc power supply DC for electrical input; Its output two-way power supply 19 is independently-powered to semiconductor cooler assembly E1, E2 respectively, and the two-way power line is isolated floatingly.The function of silicon controlled module is control output power supply break-make, changes the cold and hot end that the load current direction makes semiconductor cooler and exchange, change power output by the pulsewidth modulation that changes the output DC dutycycle by changing out-put supply polarity.Silicon controlled module is controlled by the instruction of industry control unit.
After the start, system enters normal state operation working condition very soon through initial the adjustment, and for example, at a time, the absorbent in the absorber unit A is concentrated solution, and the absorbent in the B is weak solution, and the absorbent in the C is concentrated solution, and the absorbent in the D is weak solution.To semiconductor cooler assembly E1 power supply, output power is full load to industry control unit instruction power by silicon controlled module, and the sense of current is a-a end refrigeration, the absorbent concentrated solution heat release cooling in the absorber unit A; The b-b end heats, and the absorbent weak solution heat absorption in the absorber unit B heats up, and is exactly that electron heat pump E1 pumps into B with heat from A on this process nature.
When the absorbent weak solution temperature in the B is raised to certain value, the solution boiling, aqueous vapor is evaporated from solution, industry control unit electromagnetic valve of instruction F1b opens, saturated aqueous vapor enters condenser and condenses into aqueous water, flows under the influence of gravity into condenser below water leg, is back to evaporimeter through capillary.The heat of condensation that produces at condenser can reclaim by heat exchange, also can in line ambient atmosphere.Meanwhile, the absorbent concentrated solution drop in temperature in the A, the steam-laden partial pressure on its liquid level obviously reduces, and strong hygroscopicity manifests.
Studies show that, the certain liquid desiccant of specification is determined by the barometric gradient power between the steam-laden partial pressure on space aqueous vapor pressure and the liquid desiccant liquid level the absorption rate of aqueous vapor, under the situation of this device, the space vapour pressure is determined by the temperature of evaporimeter inner refrigerant water, and hygroscopic agent be the steam-laden partial pressure on the absorbent solution surface in the absorber unit is to be determined by solution concentration and temperature, after concentration was determined, temperature was lower, and hygroscopicity is just stronger.For example, concentration is 40% water lithium chloride solution, temperature is in the time of 25 ℃, saturation vapour pressure is 0.55kPa, concentration is 50% lithium bromide water solution, and temperature is in the time of 25 ℃, and saturation vapour pressure is 0.85kPa: the saturation vapour pressure of pure water in the time of 25 ℃ is 3.17kPa, being 1.23kPa in the time of 10 ℃, is 0.87kPa in the time of 5 ℃.
After concentrated solution temperature in the A dropped to " excessively cold " value of setting, industry control unit electromagnetic valve of instruction F2a opened, and the A inner absorbent absorbs rapidly the low temperature aqueous vapor of flash-pot, and the evaporimeter inner refrigerant freezes because of continuous gasification.Because the thermal inertia of semiconductor cooler is very little, the absorbent weak solution temperature in the B is raised to the evaporation of boiling aqueous vapor; Absorbent concentrated solution in the A drops to " excessively cold " temperature and the absorption refrigeration agent aqueous vapor that begins, and the time of this process is very fast.The work of semiconductor cooler impels the absorbent concentrated solution in the A constantly to absorb aqueous vapor on the one hand, will absorb the liberated heat pump and remove B, keep absorption/process of refrigerastion and carry out, and solution concentration is with the corresponding gradually dilution of the increase that absorbs moisture; On the other hand, impelling simultaneously the continuous absorbing heat of weak solution in the B, is water transform that gas evaporation is gone out, and solution concentration increases gradually, keeps the carrying out of understanding absorption/exothermic process.
To the absorbent properties of aqueous vapor fine grasp to be arranged to selected liquid hygroscopic material for the refrigeration absorbent, do not having under the vacuum environment of air, hygroscopic agent solution to variable concentrations, different isothermals, etc. under the vapour pressure condition to the absorption of aqueous vapor, separate the temporal evolution process that absorbs sufficient experimental data will be arranged, this is the foundation of single-chip microcomputer industry control unit programming.The concentration range of refrigerating plant system of the present invention defined concentrated solution in service, weak solution, the gasification boiling temperature, the parameters such as " excessively cold " temperature of absorption are determined on the basis of analyzing above-mentioned experimental data and are preset in the single-chip microcomputer industry control unit program.
Concentrated solution in the A constantly absorbs aqueous vapor and transforms to weak solution, weak solution in the B constantly gasifies and transforms to concentrated solution, when all arriving respectively near native system, they set weak solution, during the set-point of the concentration range of concentrated solution (its value determines according to the absorbent properties experimental data that adopts), instruction silicon controlled module in industry control unit is powered to semiconductor refrigerator assembly E1 and is done pulsewidth modulation, output power is dropped to predetermined value, solution in A and the B enters absorption, the lag phase of desorb getter, solution can not be removed the solution temperature rising that causes positive convergence weak solution concentration range in the A by E1 fully because absorbing heat in the A when absorbing aqueous vapor.
When instruction regulation and control in industry control unit reduce the E1 output power, make the interior solution of A, B enter absorption, desorb getter in the time of lag phase, the full load power supply is carried out to semiconductor refrigerator assembly E2 in another loop of instruction silicon controlled module, the sense of current is c-c end refrigeration, the absorbent concentrated solution heat release cooling in the absorber unit C; The d-d end heats, and the absorbent weak solution heat absorption in the absorber unit D heats up.When the absorbent weak solution temperature in the D is raised to certain value, aqueous solution ebullition, gasification, industry control unit electromagnetic valve of instruction F1b closes, and F2a closes, and F1d opens; Semiconductor refrigerator assembly E1 is cut off the power supply, at this moment the temperature that has been converted into weak solution in A is lower, the temperature that has been converted into concentrated solution in B is higher, they carry out conductive thermal exchange by idle semiconductor cooler assembly E1, reduced concentrated solution temperature in the B, improved weak solution temperature in the A, running is favourable to lower whorl for this.After F1d opened, the saturated aqueous vapor that produces in the D entered condenser and condenses into aqueous water, flowed under the influence of gravity into condenser below water leg, was back to evaporimeter through capillary; After the absorbent concentrated solution temperature in the C drops to " excessively cold " value of setting, industry control unit electromagnetic valve of instruction F2c unlatching, the C inner absorbent absorbs rapidly the low temperature aqueous vapor of flash-pot, and the cold-producing medium in the evaporimeter constantly gasifies and freezes.Equally, concentrated solution in the C constantly absorbs aqueous vapor and transforms to weak solution, weak solution in the D constantly gasifies and transforms to concentrated solution, when all arriving near native system, they set weak solution, during the set-point of the concentration range of concentrated solution, instruction silicon controlled module in industry control unit is powered to semiconductor refrigerator assembly E2 and is done pulsewidth modulation, output power is dropped to predetermined value, solution in C and the D enters absorption, the lag phase of desorb getter, solution can not be removed the solution temperature rising that causes forward convergence weak solution concentration range in the C by E2 fully because absorbing heat in the C when absorbing aqueous vapor.Meanwhile, instruction silicon controlled module in industry control unit carries out full load power supply, the new mutual cycle of operation, the current opposite in direction that this is taken turns to semiconductor refrigerator assembly E1, the a-a end heats, and the absorbent weak solution heat absorption in the absorber unit A heats up to separate and absorbs the refrigeration working medium aqueous vapor; B-b holds refrigeration, the absorbent concentrated solution heat release cooling absorption refrigeration working medium aqueous vapor in the absorber unit B.Equally, when the weak solution temperature in the A is raised to certain value, aqueous solution ebullition, gasification, industry control unit electromagnetic valve of instruction F1d closes, and F2c closes, and F1a opens; Semiconductor refrigerator assembly E2 is cut off the power supply.After concentrated solution temperature in the B drops to " excessively cold " value of setting, industry control unit electromagnetic valve of instruction F2b unlatching, the B inner absorbent absorbs rapidly the low temperature aqueous vapor of flash-pot, and the cold-producing medium in the evaporimeter constantly gasifies and freezes.
Two semiconductor cooler assemblies (E1, E2) sequentially carry out refrigeration end and heat the mutual operation of end, and the absorbent that has driven in 4 absorptive units (A, B, C, D) carries out concentrated solution cooling/absorption refrigeration agent aqueous vapor/be converted into weak solution according to program; Weak solution heating/desorb getter heat release/be converted into the continuous interactive circular flow of concentrated solution causes the heat absorption of constantly gasifying of evaporimeter inner refrigerant working medium to produce cold.
The drive source of refrigerating plant operation of the present invention is to be held and refrigeration end by heating of the semiconductor cooler of low-voltage dc power supply power supply.If be heat source water, GEOTHERMAL WATER, the industrial exhaust heat water that solar wind-energy transforms with the semiconductor cooler unit replacement, and cooperate cooling water; The grid gilled radiator that absorber unit is built-in is replaced by coil radiator, and cross absorption refrigerating plant of the present invention equally can refrigerating operaton.
Description of drawings
Accompanying drawing is semiconductor cross absorption refrigerating plant technology schematic diagram.
On the figure: the 1st, condenser (L1, L2 is 2 identical condensers of structure), the 2nd, magnetic valve F1 (F1a, F1b, F1c, F1d), F2 (F2a, F2b, F2c, F2d), the 3rd, absorber unit (A, B, C, D is 4 identical absorber unit of structure), the 4th, absorbent solution specific gravity sensor (G1, G2, G3, G4), the 5th, solution temperature sensor (T1 in the absorber unit, T2, T3, T4), the 6th, stainless steel tilted grid plate net, the 7th, the grid gilled radiator, the 8th, semiconductor cooler assembly (E1, E2), the 9th, cold-producing medium Working medium gas water flow pass-out enters pipeline, the 10th, water leg (L1, the L2 below respectively has one), the 11st, ambient temperature sensor (T6), the 12nd, capillary (L1, respectively there is 1 on the water leg of L2), the 13rd, cold-producing medium cooling-water temperature sensor (T5), the 14th, evaporimeter, the 15th, single-chip microcomputer industry control unit, the 16th, the signal output bus of control magnetic valve running, the 17th, the sensor information input bus, the 18th, the holding wire of control controllable silicon relay module running, the 19th, to the two-way power line of semiconductor cooler assembly power supply, the 20th, controllable silicon relay module, the 21st, dc low-voltage external power DC input line.
The specific embodiment
To the absorption characteristic that it is right that selected absorbent and cold-producing medium form refrigeration working medium sufficient experimental data to be arranged.It is take the halogen aqueous solution of alkali metal salt as absorbent that the present invention in most cases uses, and water is cold-producing medium, is cold-producing medium for obtaining the available ethanol of the refrigeration that is lower than zero degree.Some special aspects need be used solid absorbent, the absorbent pressed powder can be infiltrated sticking Chuang agent and an amount of thermal conducting agent (such as graphite etc.) and make cellular casting and be bonded on the fin.According to refrigerating capacity, refrigeration working medium is to characterisitic parameter, and service condition etc. calculate the amount of the required absorbent of device, cold-producing medium, the master datas such as semiconductor cooler component power.The halogen alkali metal salt that is used as cold-producing medium has certain corrosivity, and absorber unit and built-in grid sheet heat radiator select the non-corrosive metal (NCM) materials such as stainless steel to make.Condenser can be selected the existing fin structure in market.Absorber unit, condenser (containing water leg), evaporimeter form mass transfer Flowing Space system between a cold-producing medium and the absorbent by pipeline, pump air and become vacuum state to make internal system pressure only be water vapor pressure.Absorber unit and evaporimeter are covered with the exhausted bed course of polyurethane foam plastics outward.The optional market of magnetic valve approved product.
One chip microcomputer is called for short single-chip microcomputer, and specification is more on the market, and refrigerating plant of the present invention system can select 8 single-chip microcomputers to join peripheral components to consist of the industry control unit.Programme according to a conventional method in single-chip microcomputer industry control unit, programming is decided according to mainly absorbing the characteristic curve parameter by the right absorption of selected absorbent cold-producing medium working medium, solution.
The absorbent solution specific gravity sensor, solution and water temperature sensor, ambient temperature sensor can adopt commercially available standard product, and medium precision on the low side just can satisfy this device demand.Have various in style on the market, the controllable silicon solid-state relay of various uses can select to meet the product of this apparatus function, also can purchase controllable silicon monolithic and supporting electronic devices and components, press the required function logic circuit, welding is built into the controllable silicon relay module of the machine special use.The bismuth tellurium semiconductor refrigerator of producing both at home and abroad is very ripe, and the charge is small, and specification is more, and the monolithic that for example has produces cold power can reach 68 watts, and the cold and hot end temperature difference is greater than 65 ℃, according to the needs of this device, with the connection in series-parallel of multi-disc semiconductor chilling plate.The configuration mounting fixing parts consists of the semiconductor cooler assembly that meets the machine requirement.
Claims (5)
1. semiconductor cross absorption refrigerating plant, include semiconductor cooler assembly E1, E2, absorber unit, evaporimeter, condenser, water leg, magnetic valve F1a, F1b, F1c, F1d, F2a, F2b, F2c, F2d, capillary and connecting pipeline, single-chip microcomputer industry control unit, the controllable silicon relay module, specific gravity sensor, temperature sensor, it is characterized in that in absorber unit, being provided with the grid gilled radiator, be placed with absorbent solution in the absorber unit, absorbent solution is the halogen alkali metal salt, the grid gilled radiator is submerged in the absorbent solution, the PN junction end face of the hot junction of a semiconductor cooler assembly and cold junction respectively with 2 absorber unit in grid gilled radiator outer face close-coupled, single-chip microcomputer industry control unit instruction controllable silicon relay module control semiconductor cooler assembly power supply break-make and power output, changing the load current direction exchanges cold and hot end, the mutual operation of the hot junction of a semiconductor cooler assembly and cold junction, 2 absorber unit that driven in synchronism links heat/separate absorption, the mutual operation of cooling/absorption, 4 absorber unit that structure is identical that complete machine has disposed two semiconductor cooler assemblies and has been complementary with it, under the instruction control of single-chip microcomputer industry control unit, two semiconductor cooler assemblies carry out refrigeration end and the mutual operation that heats end according to program, carry out the weak solution heating to drive 4 absorbents in the absorber unit according to program, separate and absorb cold-producing medium, be converted into concentrated solution, the concentrated solution cooling, absorption refrigeration agent aqueous vapor, be converted into the continuous interactive circular flow of weak solution, cause the heat absorption of constantly gasifying of evaporimeter inner refrigerant working medium to produce cold.
2. semiconductor cross absorption refrigerating plant as claimed in claim 1, it is characterized in that the single-chip microcomputer industry control unit of single-chip microcomputer and peripheral components formation is provided with proportion and the temperature of each absorber unit absorbent solution, evaporimeter inner refrigerant temperature, environment temperature sensor input information bus, control magnetic valve F1a, F1b, F1c, F1d, F2a, F2b, F2c, the signal output bus of F2d running, also be provided with control controllable silicon relay module to semiconductor cooler assembly E1, the holding wire of E2 power supply running also has refrigerating plant equipment fault alarm signal to show and output device on the single-chip microcomputer industry control unit.
3. semiconductor cross absorption refrigerating plant as claimed in claim 1, halogen alkali metal salt wherein is lithium chloride, lithium bromide, calcium chloride, this halogen alkali metal salt is single component or salt-mixture, and cold-producing medium working medium is selected water or ethanol according to the refrigeration purposes.
4. semiconductor cross absorption refrigerating plant as claimed in claim 3, the halogen aqueous solution of alkali metal salt is absorbent, and water is cold-producing medium, and both form refrigeration working medium pair.
5. semiconductor cross absorption refrigerating plant as claimed in claim 1, it is characterized in that in each absorber unit, being provided with specific gravity sensor, the temperature sensor of absorbent solution, in evaporimeter, be provided with the cold-producing medium cooling-water temperature sensor, also be provided with ambient temperature sensor, the data of Real-time Collection are sent into single-chip microcomputer industry control unit.
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| CN102661618B (en) * | 2012-05-18 | 2013-12-11 | 程刚 | Closed water circulation semiconductor refrigeration dehumidifying air conditioning device |
| CN102931818A (en) * | 2012-10-24 | 2013-02-13 | 广东美的暖通设备有限公司 | Frequency conversion module heat abstractor and air conditioner |
| CN104676782B (en) * | 2015-02-10 | 2017-07-18 | 清华大学 | A kind of solution humidifying air processor of multistage distributary |
| CN107192163B (en) * | 2017-07-06 | 2023-07-18 | 华南理工大学 | Semiconductor-absorption diffusion coupling refrigerating device |
| CN111006256A (en) * | 2018-10-08 | 2020-04-14 | 四川蓝丰科技有限公司 | Condensing centrifugal sedimentation method for cleaning kitchen oil fume |
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