Air setting composite evaporation formula is produced the method and the device of fluid state ice
Technical field
The present invention relates to a kind of method and device of producing fluid state ice, relate in particular to method and device that a kind of air setting composite evaporation formula is produced fluid state ice.
Background technology
Ice storage technology is present electric power " peak load shifting " and solves one of important method of power shortage.This technology is utilized cheap and abundant electric power at night ice making cold-storage efficiently, releases cold in electric power peak hour ice-melt.In order to overcome the inherent shortcoming of static ice cold-storage, various dynamic ice cold-storage modes become the focus of present research.Fluid state ice is a kind of as dynamic ice-making, it is the solution based on the suspension ice particle of water, it can be pumped and get, in addition owing to the ice slurry is made up of many small ice crystals, this makes it compare with traditional ice groove cold-storage bigger heat exchange area when heat exchange, can more effectively adapt to the variation of refrigeration duty, and when system's refrigeration duty changed, temperature controlled accuracy and stability improved greatly.From range of application, fluid state ice not only can be applied in the ice-chilling air conditioning system, can also be applied to fields such as food refrigerated, fish production, fire-fighting and clinical medicine, and its application prospect is boundless.
The fluid state ice ice making method mainly contains direct contact type ice making method, scrape type ice making method, vacuum type ice making method and subcooled water method at present.Direct contact type ice making method requires the not dissolving mutually of contacted two media, so the range of choice of cold-producing medium is narrower, and has the attenuation problem of performance after operation a period of time.In addition, owing to can not fully water be separated with refrigerant, the emulsified pollution of the ice of making is disadvantageous for the application in the food fresh keeping relevant industries, and the feature of environmental protection is poor.Scrape type ice making method must dispose the rotating vane that external motor drives, its structure and manufacturing process complexity, and energy consumption is big, the fault rate height.Vacuum type ice making method needs to keep vacuum in ice-making process, the air-tightness and the vacuum of whole device are had relatively high expectations, the structure more complicated.The subcooled water method is to be cooled to supercooled state (being lower than 0 ℃) by water in subcooler, enter Ice Storage Tank then, in Ice Storage Tank, the subcooled water supercooled state is eliminated becomes mixture of ice and water, ice is wherein stayed in the Ice Storage Tank, and separated the going out of water enters subcooler once more.In the dynamic freezing of supercooled water process, remain the constant higher coefficient of heat transfer between water and the refrigerant, the ice making rate is higher, and energy loss is less, but the supercooled state of water is a unsure state, be difficult to keep and very easily undergo phase transition, therefore subcooled water just freezes in subcooler before running into through being everlasting and separating device for cooling, thereby produces the stifled problem of ice, simultaneously, control requirement to evaporating temperature is very accurate, and difficulty is bigger.
Summary of the invention
Technical problem:Technical problem to be solved by this invention is, provides a kind of air setting composite evaporation formula to produce the method and the device of fluid state ice, can solve the stifled and low problem of efficiency of ice, has good energy-saving effect.
Technical scheme:For solving the problems of the technologies described above, the air setting composite evaporation formula that the present invention adopts is produced the method for fluid state ice, comprise the humid air condensation composite evaporation formula ice making air circulation of carrying out simultaneously, cold-producing medium circulation and the circulation of evaporation ice making water, the cold-producing medium circulation provides low-temperature receiver for humid air condensation composite evaporation formula ice making air circulation, humid air condensation composite evaporation formula ice making air circulation provides ice making required low temperature and low humidity air for the circulation of evaporation ice making water, wherein: described humid air condensation composite evaporation formula ice making air circulation is: highly humid air is under the effect of blower fan, through after the adjusting of volume damper, enter in the passage between the inner tank theca of the outer tube inner wall of ice-making compartment and ice-making compartment; Highly humid air in this passage with the ice-making compartment outer tube wall outside the low-temperature refrigerant at place carry out heat exchange, humid air cooling is condensed, the fine liquid particles of freeze-outing from air continues to take place exchange heat and further cooling with condensed humid air in the decline process; Cooled off the water droplet after cold, and separated cooler through first cold water and separate cold back and produce ice crystal, the water droplet of Jie Binging outflow first ice machine bin after the first frozen water separator of the first ice machine bin bottom separates; Condensation low temperature and low humidity air is later discharged by the ice-making compartment inner core; In the process of discharging, the low temperature and low humidity air carries out heat exchange by inner core wall and the highly humid air of sending into ice-making compartment, and the highly humid air cooling effect is further strengthened; Then the low temperature and low humidity air of discharging in the ice-making compartment inner core is sent in the evaporation ice-making compartment; The water droplets of the nozzle ejection in the evaporation ice-making compartment is at low temperature and low humidity air evaporation cooling becoming ice crystal; After low temperature and low humidity air and the exchange of water droplets generation caloic, the evaporation ice-making compartment is discharged Cryogenic air, and this Cryogenic air enters in the showering spray type condenser, the partial condensation heat of absorption refrigeration agent circulation, and warming and humidifying becomes highly humid air; Under the effect of blower fan, send into condensation ice making in the ice-making compartment again, thereby finished a complete humid air condensation composite evaporation formula ice making air circulation; Described cold-producing medium circulation is: refrigeration compressor enters high temperature and high pressure gaseous refrigerant in the showering spray type condenser, the low temperature and low humidity air of discharging from ice-making compartment and the recirculated water of showering spray type condenser to refrigerant cools after, cold-producing medium enters further condensation liquefaction in the aerial condenser, forms high pressure liquid refrigerant; High pressure liquid refrigerant is flowed through after the expansion valve throttling, enters ice-making compartment; By the wall of urceolus, the highly humid air generation exchange heat in cold-producing medium and the ice-making compartment behind the heat and vaporization of absorption highly humid air, is discharged from ice-making compartment top, and refrigeration compressor sucks cold-producing medium, circulates thereby finished a complete cold-producing medium; Described evaporation ice making water circulation is: the evaporative cooling in the low temperature and low humidity air of the water droplets of the nozzle ejection in the evaporation ice-making compartment generates subcooled water, separating cooler through second subcooled water separates and generates ice crystal after cold, the water of Jie Binging does not flow in the water tank after the second frozen water separator separates; Under the pressure effect of water pump, after control valve was regulated flow, the water in the water tank entered the nozzle atomization spray again, thereby had finished a complete evaporation ice making water circulation.
Described air setting composite evaporation formula is produced in the method for fluid state ice, and the highly humid air that Cryogenic air that the evaporation ice-making compartment is discharged and showering spray type condenser are discharged carries out the sensible heat exchange in heat exchanger.
A kind of air setting composite evaporation formula is produced the device of fluid state ice, comprise humid air condensation composite evaporation formula ice making air circulation assembly, cold-producing medium recirculation assembly and evaporation ice making water recirculation assembly, wherein: the composite air recirculation assembly of humid air condensation ice making and evaporation ice making, comprise the showering spray type condenser, blower fan, volume damper, ice-making compartment, first subcooled water is separated cooler, first ice machine bin, the first frozen water separator and evaporation ice-making compartment, ice-making compartment comprises that top and bottom are the urceolus and the inner core of opening, inner core is arranged in urceolus, and is fixedly connected on the inwall of urceolus; First subcooled water is separated the top that cooler is positioned at first ice machine bin, and the first frozen water separator is positioned at the bottom of first ice machine bin; The air outlet of showering spray type condenser is communicated with the air inlet of blower fan by pipeline, the air outlet of blower fan is communicated with the urceolus top of ice-making compartment by volume damper, the urceolus bottom of ice-making compartment is communicated with the import of first ice machine bin, the inner core top of ice-making compartment is communicated with by the air inlet of pipeline with the evaporation ice-making compartment, and the air outlet of evaporation ice-making compartment is communicated with by the air inlet of pipeline with the showering spray type condenser.The cold-producing medium recirculation assembly, comprise showering spray type condenser, refrigeration compressor, aerial condenser, expansion valve and ice-making compartment, the refrigerant outlet of ice-making compartment is communicated with the low-pressure admission mouth of refrigeration compressor by pipeline, the high-pressure exhaust of refrigeration compressor is communicated with by the refrigerant inlet of pipeline with the showering spray type condenser, the refrigerant outlet of showering spray type condenser is communicated with the refrigerant inlet of aerial condenser by pipeline, and the refrigerant outlet of aerial condenser is communicated with the ice-making compartment refrigerant inlet by expansion valve.Evaporation ice making water recirculation assembly comprises that water tank, water pump, control valve, nozzle, evaporation ice-making compartment, second subcooled water separate cooler, the second frozen water separator and second ice machine bin; Second subcooled water is separated the top that cooler is positioned at second ice machine bin, and the second frozen water separator is positioned at the bottom of second ice machine bin; Nozzle is positioned at the top of evaporation ice-making compartment; The lower end of evaporation ice-making compartment is communicated with the import of second ice machine bin, and the outlet of second ice machine bin is communicated with the water inlet of water tank by pipeline, and the delivery port of water tank is communicated with the water inlet of water pump by pipeline, and the delivery port of water pump is communicated with nozzle by control valve.
Air setting composite evaporation formula is produced the device of fluid state ice, also comprises heat exchanger, and heat exchanger is positioned on the pipeline that is communicated with volume damper and ice-making compartment urceolus, also is positioned at simultaneously on the pipeline that is communicated with evaporation ice-making compartment and showering spray type condenser.
Beneficial effect:Compared with prior art, adopt the advantage of technical scheme of the present invention to be:
1. effectively avoid the stifled phenomenon of ice, improved the stability of producing fluid state ice.The method of producing fluid state ice and device thereof in the technical program, in ice-making compartment, be provided with urceolus and inner core, in the passage of highly humid air between inner core and urceolus, the cold ice crystal of producing condensed, low-temperature refrigerant in the ice-making compartment urceolus and the highly humid air generation heat exchange in the ice-making compartment, the water droplet that produces during the humid air condensation is relatively more even and particle diameter is very little, increased the heat exchange area of water droplet, water droplet is proceeded heat exchange with condensed air in dropping process, realized coldly, and separated cooler through subcooled water and separate and form ice crystal after cold.The device of producing fluid state ice of this structure has overcome traditional subcooled water method dynamic ice-making device and has iced stifled defective easily, has improved the stability of producing fluid state ice.
2. improved the efficient of producing fluid state ice.In technical scheme of the present invention, except being set, humid air condensation ice-making compartment produces fluid state ice, also be provided with the evaporation ice-making compartment.Low temperature and low humidity air from the discharge of humid air condensation ice-making compartment, enter in the evaporation ice-making compartment, the low temperature and low humidity air with from the exchange of the water droplets generation caloic of nozzle ejection, water droplets evaporative cooling in the low temperature and low humidity air generates subcooled water, separates cooler through second cold water and separates cold back and generate ice crystal.On the basis of humid air condensation ice-making compartment, increase is provided with the evaporation ice-making compartment, and making all has the ice crystal generation in humid air condensation ice-making compartment and the evaporation ice-making compartment, has improved the ice making efficient of whole device greatly.
3. secondary heat exchange has increased heat exchange area, has improved heat exchange efficiency.An inner core air duct is established in ice-making compartment inside in the technical program, highly humid air is entered by the top of ice-making compartment, flow in the passage between ice-making compartment outer tube inner wall face and inner tank theca face, wall and the outer low-temperature refrigerant heat exchange of wall by ice-making compartment, after air arrives the bottom of ice-making compartment, through the inner core air duct discharge ice-making compartment that moves upward again, the low temperature and low humidity air that moves upward in the inner core passage carries out heat exchange with the highly humid air that enters ice-making compartment equally by the inner core wall, the highly humid air that enters ice-making compartment is cooled, because increased secondary heat exchange, increase heat exchange area, improved heat exchange efficiency.
4. energy-saving effect is remarkable.In the technical program, utilize the showering spray type condenser to come the used circulating air of warming and humidifying ice making, this has not only solved the Humidification problem of circulating air, and has made full use of most of condensation waste heat of kind of refrigeration cycle, and the energy-saving effect of whole device is remarkable.
5. effectively raise heat exchanger effectiveness.The technical program can also comprise heat exchanger, and this heat exchanger is positioned on the pipeline that is communicated with showering spray type condenser and blower fan, also is positioned at simultaneously on the pipeline that is communicated with ice-making compartment inner core and showering spray type condenser.After the low temperature and low humidity air of the highly humid air behind the showering spray type condenser warming and humidifying through heat exchanger and ice-making compartment discharge is cooled after the row heat exchange, increases relative humidity, enter ice-making compartment and carry out the cold excessively ice crystal of producing of condensation.Owing to adopted heat exchanger, the heat exchanger effectiveness of whole device has obtained bigger raising.
Description of drawings
Fig. 1 is an apparatus structure composition frame chart of the present invention.
Fig. 2 is the structure composition frame chart of a kind of improvement project of the present invention.
Fig. 3 is the structure composition frame chart of another kind of improvement project of the present invention.
Have among the figure: showering spray type condenser 1, blower fan 2, volume damper 3, ice-making compartment 4, urceolus 401, inner core 402, first subcooled water is separated cooler 5, first ice machine bin 6, the first frozen water separator 7, refrigeration compressor 8, aerial condenser 9, expansion valve 10, water tank 11, water pump 12, control valve 13, nozzle 14, evaporation ice-making compartment 15, second subcooled water is separated cooler 16, the second frozen water separator 17, second ice machine bin 18, heat exchanger 19, Water flow adjusting valve 20, return pipe 21, by-passing valve 22.
The specific embodiment
Below in conjunction with accompanying drawing example of the present invention is explained in detail.
The method that air setting composite evaporation formula of the present invention is produced fluid state ice has comprised humid air condensation composite evaporation formula ice making air circulation, cold-producing medium circulation and the circulation of evaporation ice making water.These three cyclic processes are carried out simultaneously.The cold-producing medium circulation provides low-temperature receiver for humid air condensation composite evaporation formula ice making air circulation, and humid air condensation composite evaporation formula ice making air circulation is provided at the required low temperature and low humidity air of ice making in the evaporation ice-making compartment 15 for the circulation of evaporation ice making water.
Humid air condensation composite evaporation formula ice making air circulation is: highly humid air through after the adjusting of volume damper 3, enters in the passage between inner core 402 outer walls of urceolus 401 inwalls of ice-making compartment 4 and ice-making compartment 4 under the effect of blower fan 2; Highly humid air in this passage with ice-making compartment 4 urceolus 401 walls outside the place low-temperature refrigerant carry out heat exchange, the humid air cooling is condensed, and the fine liquid particles of freeze-outing from air continues exchange heat to take place and further cooling with condensed humid air in the decline process; Cooled off the water droplet after cold, and separated cooler 5 through first cold water and separate cold back and produce ice crystal, the water droplet of Jie Binging outflow first ice machine bin 6 after the first frozen water separator 7 of first ice machine bin, 6 bottoms separates; Condensation low temperature and low humidity air is later discharged by ice-making compartment 4 inner cores 402; In the process of discharging, the low temperature and low humidity air carries out heat exchange by inner core 402 walls and the highly humid air of sending into ice-making compartment 4, and the highly humid air cooling effect is further strengthened; The low temperature and low humidity air of discharging in ice-making compartment 4 inner cores 402 is sent in the evaporation ice-making compartment 15 then; The water droplets that nozzle 14 in the evaporation ice-making compartment 15 sprays is at low temperature and low humidity air evaporation cooling becoming ice crystal; After low temperature and low humidity air and the exchange of water droplets generation caloic, evaporation ice-making compartment 15 is discharged Cryogenic air, and this Cryogenic air enters in the showering spray type condenser 1; The partial condensation heat of Cryogenic air absorption refrigeration agent circulation, and be heated humidification and become highly humid air; Under the effect of blower fan 2, highly humid air is sent into condensation ice making in the ice-making compartment 4 again, thereby has finished a complete humid air condensation composite evaporation formula ice making air circulation.This circulation can back and forth be carried out.
Cold-producing medium circulation is: refrigeration compressor 8 enters high temperature and high pressure gaseous refrigerant in the showering spray type condenser 1, low temperature and low humidity air of discharging from ice-making compartment 4 and the showering spray type condenser 1 recirculated water to refrigerant cools after; Cold-producing medium enters in the aerial condenser 9, and the further condensation liquefaction of cold-producing medium forms high pressure liquid refrigerant; High pressure liquid refrigerant is flowed through after expansion valve 10 throttlings, enters ice-making compartment 4; By the wall of urceolus 401, the highly humid air generation exchange heat in cold-producing medium and the ice-making compartment 4 behind the heat and vaporization of absorption highly humid air, is discharged from ice-making compartment 4 tops, and refrigeration compressor 8 sucks cold-producing medium, circulates thereby finished a complete cold-producing medium.This circulation can back and forth be carried out.
The circulation of evaporation ice making water is: water droplets evaporative cooling in the low temperature and low humidity air that the nozzle 14 in the evaporation ice-making compartment 15 sprays generates subcooled water, separating cooler 16 through second subcooled water separates and generates ice crystal after cold, the water of Jie Binging does not flow in the water tank 11 after the second frozen water separator 17 separates; Under the pressure effect of water pump 12, after control valve 13 was regulated flow, the water in the water tank 11 entered nozzle 14 atomizing sprays again, thereby had finished a complete evaporation ice making water circulation.This circulation can back and forth be carried out.
As shown in Figure 1, the present invention uses the device that said method is produced fluid state ice, comprises humid air condensation composite evaporation formula ice making air circulation assembly, cold-producing medium recirculation assembly and evaporation ice making water recirculation assembly.
Humid air condensation composite evaporation formula ice making air circulation assembly comprises that showering spray type condenser 1, blower fan 2, volume damper 3, ice-making compartment 4, first subcooled water separate cooler 5, first ice machine bin 6, the first frozen water separator 7 and evaporation ice-making compartment 15.This ice-making compartment 4 comprises that top and bottom are the urceolus 401 and the inner core 402 of opening, and inner core 402 is arranged in urceolus 401, and is fixedly connected on the inwall of urceolus 401.First subcooled water is separated the top that cooler 5 is positioned at first ice machine bin 6, and the first frozen water separator 7 is positioned at the bottom of first ice machine bin 6.The air outlet of this showering spray type condenser 1 is communicated with by the air inlet of pipeline with blower fan 2, the air outlet of blower fan 2 is communicated with urceolus 401 tops of ice-making compartment 4 by volume damper 3, urceolus 401 bottoms of ice-making compartment 4 are communicated with the import of first ice machine bin 6, inner core 402 tops of ice-making compartment 4 are communicated with by the air inlet of pipeline with evaporation ice-making compartment 15, and the air outlet of evaporation ice-making compartment 15 is communicated with by the air inlet of pipeline with showering spray type condenser 1.
The cold-producing medium recirculation assembly, comprise showering spray type condenser 1, refrigeration compressor 8, aerial condenser 9, expansion valve 10 and ice-making compartment 4, the refrigerant outlet of this ice-making compartment 4 is communicated with the low-pressure admission mouth of refrigeration compressor 8 by pipeline, the high-pressure exhaust of refrigeration compressor 8 is communicated with by the refrigerant inlet of pipeline with showering spray type condenser 1, the refrigerant outlet of showering spray type condenser 1 is communicated with by the refrigerant inlet of pipeline with aerial condenser 9, and the refrigerant outlet of aerial condenser 9 is communicated with ice-making compartment 4 refrigerant inlets by expansion valve 10.
Evaporation ice making water recirculation assembly comprises that water tank 11, water pump 12, control valve 13, nozzle 14, evaporation ice-making compartment 15, second subcooled water separate cooler 16, the second frozen water separator 17 and second ice machine bin 18; This second subcooled water is separated the top that cooler 16 is positioned at second ice machine bin 18, and this second frozen water separator 17 is positioned at the bottom of second ice machine bin 18; This nozzle 14 is positioned at the top of evaporation ice-making compartment 15; The lower end of this evaporation ice-making compartment 15 is communicated with the import of second ice machine bin 18, the outlet of second ice machine bin 18 is communicated with by the water inlet of pipeline with water tank 11, the delivery port of water tank 11 is communicated with by the water inlet of pipeline with water pump 12, and the delivery port of water pump 12 is communicated with nozzle 14 by control valve 13.
In above-mentioned three recirculation assemblies, humid air condensation composite evaporation formula ice making air circulation assembly and shared identical showering spray type condenser 1 of cold-producing medium recirculation assembly and ice-making compartment 4, humid air condensation composite evaporation formula ice making air circulation assembly and the shared identical evaporation ice-making compartment 15 of evaporation ice making water recirculation assembly.
The device of producing fluid state ice of this structure, in ice-making compartment 4, be provided with urceolus 401 and inner core 402, in the passage of highly humid air between inner core 402 and urceolus 401, the cold ice crystal of producing condensed, low-temperature refrigerant in ice-making compartment 4 urceolus 401 and the highly humid air generation heat exchange in the ice-making compartment 4, the water droplet that produces during the humid air condensation is relatively more even and particle diameter is very little, increased the heat exchange area of water droplet, water droplet is proceeded heat exchange with condensed air in dropping process, realized coldly, and separated cooler 5 through first subcooled water and separate and form ice crystal after cold.The device of producing fluid state ice of this structure has overcome traditional subcooled water method dynamic ice-making device and has iced stifled defective easily, has improved stability and the efficient of producing fluid state ice.Simultaneously, condensation low temperature and low humidity air later, discharge from ice-making compartment 4, enter in the evaporation ice-making compartment 15, the low temperature and low humidity air generates subcooled water with the water droplets generation caloic exchange of spraying from nozzle 14, water droplets evaporative cooling in the low temperature and low humidity air, separates cooler 16 through second subcooled water and separates cold back generation ice crystal, the water of Jie Binging does not flow in the water tank 11 after the second frozen water separator 17 separates.On the basis of ice-making compartment 4, increase to be provided with and evaporate ice-making compartment 15, making all has the ice crystal generation in ice-making compartment 4 and the evaporation ice-making compartment 15, has improved the ice making efficient of whole device greatly.In addition, highly humid air is entered by the top of ice-making compartment 4, flow in the passage between ice-making compartment 4 urceolus, 401 internal faces and inner core 402 outside wall surface, wall and the outer low-temperature refrigerant heat exchange of wall by ice-making compartment 4, after air arrives the bottom of ice-making compartment 4, move upward again through inner core 402 air ducts and to discharge ice-making compartment 4, the low temperature and low humidity air that moves upward in inner core 402 passages carries out heat exchange with the highly humid air that enters ice-making compartment 4 equally by inner core 402 walls, and the highly humid air that enters ice-making compartment 4 is cooled.Because increased secondary heat exchange,, improved heat exchange efficiency so increased heat exchange area.In addition, utilize showering spray type condenser 1 to come the used circulating air of warming and humidifying ice making, this has not only solved the Humidification problem of circulating air, and has made full use of most of condensation waste heat of kind of refrigeration cycle, and the energy-saving effect of whole device is remarkable.
Further, as shown in Figure 2, the described device of producing fluid state ice also comprises heat exchanger 19, this heat exchanger 19 is positioned on the pipeline that is communicated with volume damper 3 and ice-making compartment 4 urceolus 401, also is positioned at simultaneously on the pipeline that is communicated with evaporation ice-making compartment 15 and showering spray type condenser 1.This heat exchanger 19 can adopt existing gas and gas heat-exchanger structure.After heat exchanger 19 is installed, low temperature humid air from 15 discharges of evaporation ice-making compartment, by heat exchanger 19 and the highly humid air generation sensible heat exchange that enters ice-making compartment 4, its relative humidity also was improved when the highly humid air that enters ice-making compartment 4 was cooled, and the low temperature humid air of discharging from evaporation ice-making compartment 15 enters in the showering spray type condenser 1 after heat exchanger 19 heat exchange heat up.Owing to adopted heat exchanger 19, the heat exchanger effectiveness of whole device is greatly improved.
Further, as shown in Figure 3, the described device of producing fluid state ice also comprises return pipe 21 and Water flow adjusting valve 20.Return pipe 21 1 ends are connected with the delivery port of the first frozen water separator 7, and the other end is connected with the aqua storage tank of showering spray type condenser 1.Water flow adjusting valve 20 is arranged on the return pipe 21.In first ice machine bin 6, after the water droplet that forms ice separates by the first frozen water separator 7, can in turning back to the aqua storage tank of showering spray type condenser 1, Water flow adjusting valve 20 be utilized once more.Can reduce outside water injection rate like this, effective recycling water resource to showering spray type condenser 1.
Further, the refrigerant inlet of described ice-making compartment 4 is positioned at the bottom of ice-making compartment 4, and the refrigerant outlet of ice-making compartment 4 is positioned at the top of ice-making compartment 4.Because the air inlet of ice-making compartment 4 is positioned at top, air outlet is positioned at the bottom, be that the flow direction of air on the passage between urceolus and the inner core is from top to bottom, so when the flow direction of cold-producing medium in ice-making compartment 4 urceolus be from bottom to top in, can increase the heat exchange effect of the gas in cold-producing medium and the passage.
Further, the air inlet of described evaporation ice-making compartment 15 is positioned at the bottom of evaporation ice-making compartment 15, and the air outlet of evaporation ice-making compartment 15 is positioned at the top of evaporation ice-making compartment 15.Because the air inlet of evaporation ice-making compartment 15 is positioned at the bottom, air outlet is positioned at top, and promptly the flow direction of air in evaporation ice-making compartment 15 is from bottom to top, so, when nozzle 14 sprays, can increase the heat exchange effect between water droplets and the gas from top to bottom.
Further, described low temperature and low humidity air circulation assembly also comprises by-passing valve 22, and this by-passing valve 22 is connected between water tank 11 and the control valve 13 by pipeline.When nozzle 14 discharges are smaller, by by-passing valve 22, guarantee that the circular flow of water pump 12 is constant substantially, it is moved at efficacious workaround.
Further, the urceolus 401 of described cool room 4 and inner core 402 concentric settings.Such position is provided with the urceolus 401 that can improve cool room 4 and the heat exchange effect between the inner core 402.
In sum, no matter the present invention is important breakthrough to prior art with regard to purpose, means and effect.The foregoing description only is the exemplary illustration to principle of the present invention and effect, but not limiting the scope of the invention.Any personage who is familiar with this technology all can make modification and change embodiment under know-why of the present invention and spirit.Protection scope of the present invention should be as described claim described.