CN106568253A - Efficient ice-making device and method - Google Patents
Efficient ice-making device and method Download PDFInfo
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- CN106568253A CN106568253A CN201610953622.5A CN201610953622A CN106568253A CN 106568253 A CN106568253 A CN 106568253A CN 201610953622 A CN201610953622 A CN 201610953622A CN 106568253 A CN106568253 A CN 106568253A
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- ice
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- liquid
- holding tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an efficient ice-making device and a method. The efficient ice-making device comprises a water chilling unit, wherein the water chilling unit is serially connected with a heat exchanger; an air pump and a second adjustment valve are serially connected to a branch at the other side of the heat exchanger; an ice slurry storage groove is connected behind the second adjustment valve; a nozzle is installed in the top end in the ice slurry storage groove; a first adjustment valve is connected to a pipeline where the nozzle is located; a circulating water pump and a switch valve are installed at the bottom of the ice slurry storage groove through a pipeline; the first adjustment valve and the switch valve are connected with a throttle valve simultaneously; and the other end of the throttle valve is connected with the heat exchanger. The problems of corrosion and too high refrigerant consumption of a direct contact method, and low heat exchange efficiency, high energy consumption and the like of other ice slurry preparation methods are solved.
Description
Technical field
The present invention relates to a kind of application includes two kinds of properties（Evaporating temperature is slightly below 0 DEG C under normal pressure, water insoluble）Spy
Fixed hot physical property working medium, such as normal butane（- 0.5 DEG C of 1atm evaporating temperatures）, tetrafluoro monochlorethane R124（1atm evaporating temperatures -10.9
℃）Deng carrying out directly contact and undergo phase transition the device for producing fluidised form ice slurry.Due to its degree of supercooling it is minimum, when working medium evaporation temperature
Degree is at -0.5 DEG C, and it is 160% left that system ice making efficiency can reach traditional wall scrape type preparing ice slurry coefficient of performance
It is right.
Background technology
Fluidised form ice slurry is the mixture of a kind of fine crystal ice granule and aqueous solution, good mobility, conductivity of heat, energy storage
Become one kind and preferably store up cold and defeated cold medium.At present, its is illustrated in many field fluidised form ice slurry technologies distinctive
Advantage, such as：Ice-chilling air conditioning system, making food processing industry, fishery, medical treatment, cold preservation and industrial process cooling field etc..Fluidised form
The preparation method of ice slurry can be divided mainly into：Facing, supercool water law, vacuum method, fluidized bed process, contact method etc..This is several
In fluidised form ice slurry preparation method, contact method heat exchange efficiency highest, energy consumption is relatively low, and simple structure is safe, is difficult
Form ice to block up, be a kind of ideal ice slurry technology of preparing, but this method cold-producing medium easily reacts to form corruption with ice making solution
Corrosion gas, corrodes wall, while refrigeration carries out heat exchange and makes process need to consume substantial amounts of cold-producing medium by sensible heat.Together
When, in engineering it is actual ripe and it is extensive it is commercial be facing, but facing is wall heat transfer type, and its thermal resistance is big, corresponding mistake
Cold degree is bigger than normal（Typically at -19 DEG C ~ -10 DEG C）, heat exchange efficiency is low；And there is scraping blade moving component makes system manufacture complicated simultaneously
Unnecessary moving component wasted work is needed, causes overall ice making efficiency low.
The content of the invention
The present invention consumes excessive to solve contact method corrosivity and cold-producing medium, and other ice slurry preparation method heat exchange
Efficiency is low, high energy consumption the problems such as.
In order to solve above-mentioned technical problem, the present invention proposes technical scheme below：A kind of efficient ice maker, it includes cold
Water dispenser group, the handpiece Water Chilling Units are connected with heat exchanger, and air pump and the second regulating valve are in series with the heat exchanger opposite side branch road,
Fluid state ice holding tank is connected with after second regulating valve, the fluid state ice holding tank inner tip is provided with nozzle, described
Be connected with the first regulating valve on the pipeline of nozzle place, the bottom of the fluid state ice holding tank by Pipe installing have water circulating pump and
Switch valve, first regulating valve and switch valve are connected with choke valve simultaneously, and the other end of the choke valve is connected with heat exchanger.
The ice maker is direct as water-fast working medium and water using the normal butane or tetrafluoro monochlorethane of liquid
Contact, sprays decompression evaporation and continuously produces fine fluidised form ice slurry after blending.
Ice maker inside maximum pressure is controlled within 2.5atm, maximal pressure force value when the use of normal butane being working medium
Less than 1.6atm.
Using the ice making method of efficient ice maker, it is comprised the following steps：
1）Using small-sized handpiece Water Chilling Units 1,4 DEG C of cold water are produced with air source, are then sent to screw sleeve type heat exchanger 2, with by
The overheated R124 steam heat-exchangings that the compression conveying of air pump 3 comes, by R124 subcooled liquid is condensed into, meanwhile, 4 DEG C of cold water are in screw-casing
Returning water unit 1 is again by cooling down to 4 DEG C of so circulations after heat exchange heats up in pipe heat exchanger 2；
2）Ice-make cycle, fluid state ice holding tank headroom space is 0 DEG C or so of superheated steam tetrafluoro monochlorethane R124, its pressure
Power about 1.64atm, by the second regulating valve 9, is compressed and is further superheated to 10 DEG C in the presence of air pump 3, and its pressure is about
2.3atm, subsequently into screw sleeve type heat exchanger 24 DEG C or so liquid R124 are condensed into, then through the reducing pressure by regulating flow of choke valve 6
To about 1.95atm with the chilled water sent by water circulating pump 4 about 0 DEG C mix 11, mixed two kinds of temperature of liquid are 0
Between ~ 4 DEG C, its mixing temperature can be made as close possible to 0 DEG C by controlling throttle valve opening；
3）Close 0 DEG C of mixing liquid, together in the presence of water circulating pump 4 along pipeline through the first regulating valve 7, finally enter
Nozzle 8, sprays in fluid state ice holding tank 10, and the second regulating valve 9 of control keeps the upper space pressure of fluid state ice holding tank 10
In 1.6atm or so, because saturation evaporating pressure of liquid R124 at 4 DEG C now sprays for 1.9atm from nozzle 8, water and liquid
To 1.6atm, liquid R124 there occurs the unexpected pressure drop of state R124 mixing liquid in the upper space of fluid state ice holding tank 10 in mixed liquor
Evaporative phase-change, big calorimetric needed for now evaporating is from the freezing water drop for spraying together, and freezing water drop is big in very short time
Amount heat release is supercool and freeze to be formed fine ice crystal, finally falls into fluid state ice holding tank 10 and deposits and become in chilled water fluid state ice；
4）Fluid state ice is stored in fluid state ice holding tank 10 and concentrates on liquid upper substantially, bottom remains as 0 DEG C of chilled water,
Persistently deliver at 11 in the presence of water circulating pump 4 and mix with liquid R124, fluidised form ice slurry is produced in and so on circulation.
The method have the advantages that：
1st, by using comprising two kinds of properties（Evaporating temperature is slightly below 0 DEG C under normal pressure, water insoluble）Particular thermal physical property working medium,
Such as normal butane（- 0.5 DEG C of 1atm evaporating temperatures）, tetrafluoro monochlorethane R124（- 10.9 DEG C of 1atm evaporating temperatures）Deng carrying out directly
Contact and undergo phase transition and produce fluidised form ice slurry.
Degree of supercooling is minimum when the 2nd, being run using this device for making, when working medium evaporating temperature is at -0.5 DEG C, is in theory
Controlling ice efficiency can reach 160% or so of traditional wall scrape type preparing ice slurry coefficient of performance.
3rd, because the working medium that adopts is for water insoluble and do not react to form the normal butane and tetrafluoro of corrosive deposit with water
Monochlorethane R124, solves well the corrosion problems of contact method.
4th, because normal butane and tetrafluoro monochlorethane R124 and ice making solution directly contact do not have wall thermal resistance, heat exchange effect
Rate significant increase.
5th, internal maximum pressure is run due to whole system and is less than 2.5atm, it has higher security reliability, device
Manufacturing cost it is relatively low.
Description of the drawings
With reference to the accompanying drawings and examples the invention will be further described.
Fig. 1 is a kind of high-efficiency fluid ice device for making schematic diagram.
Fig. 2 is that fluid state ice produces circulation instruction explanation schematic diagram.
In figure：Handpiece Water Chilling Units 1, heat exchanger 2, air pump 3, water circulating pump 4, switch valve 5, choke valve 6, the first regulating valve 7, spray
Mouth 8, the second regulating valve 9, fluid state ice holding tank 10.
Specific embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Embodiment 1：
Such as Fig. 1-2, a kind of efficient ice maker, it includes handpiece Water Chilling Units 1, and the handpiece Water Chilling Units 1 are connected with heat exchanger 2, described
The regulating valve 9 of air pump 3 and second is in series with the opposite side branch road of heat exchanger 2, second regulating valve 9 is connected with fluid state ice and deposits afterwards
Storage tank 10, the inner tip of fluid state ice holding tank 10 is provided with nozzle 8, and on the place pipeline of the nozzle 8 the first tune is connected with
Section valve 7, there are water circulating pump 4 and switch valve 5, first regulating valve in the bottom of the fluid state ice holding tank 10 by Pipe installing
7 and switch valve 5 be connected with choke valve 6 simultaneously, the other end of the choke valve 6 is connected with heat exchanger 2.
Further, the ice maker adopts the normal butane or tetrafluoro monochlorethane of liquid as water-fast working medium
With water directly contact, decompression evaporation is sprayed after blending and continuously produces fine fluidised form ice slurry.
Further, ice maker inside maximum pressure is controlled within 2.5atm.
Embodiment 2：
It is ice making working medium that the present embodiment selects tetrafluoro monochlorethane R124, and external source adopts small-sized handpiece Water Chilling Units 1, external source
Circulation（See A-A loops in Fig. 2）：Using small-sized handpiece Water Chilling Units 1,4 DEG C of cold water are produced with air source, be then sent to screw shell
Formula heat exchanger 2, with by air pump 3 the overheated R124 steam heat-exchangings that conveying comes are compressed, and R124 is condensed into into subcooled liquid, meanwhile, 4
DEG C cold water Returning water unit 1 after intensification that exchanges heat in screw sleeve type heat exchanger 2 is so followed again by cooling down to 4 DEG C
Ring.
Ice-make cycle（See B-B, C-C, D loop in Fig. 2）：Fluid state ice holding tank headroom space is 0 DEG C or so overheated
Steam tetrafluoro monochlorethane R124, its pressure about 1.64atm, by the second regulating valve 9, are compressed simultaneously in the presence of air pump 3
10 DEG C are further superheated to, its pressure about 2.3atm is condensed into 4 DEG C or so liquid subsequently into screw sleeve type heat exchanger 2
R124, then after the reducing pressure by regulating flow of choke valve 6 to about 1.95atm with about 0 DEG C of the chilled water sent by water circulating pump 4 in such as Fig. 2
Mix at shown 11, mixed two kinds of liquid（Temperature can make its mixing temperature between 0 ~ 4 DEG C by controlling throttle valve opening
Degree is as close possible to 0 DEG C）Together in the presence of water circulating pump 4 along pipeline through the first regulating valve 7, finally enter nozzle 8, to
Spray in fluid state ice holding tank 10, the second regulating valve 9 of control makes the upper space pressure of fluid state ice holding tank 10 be maintained at 1.6atm
Left and right, because saturation evaporating pressure of liquid R124 at 4 DEG C now sprays for 1.9atm from nozzle 8, water and liquid R124 are mixed
The unexpected pressure drop of liquid is closed to 1.6atm, liquid R124 there occurs evaporative phase-change in the upper space of fluid state ice holding tank 10 in mixed liquor
（About -0.5 DEG C of evaporating temperature, that is, 0 DEG C of chilled water is supercool after balancing produces about 0.5 DEG C of degree of supercooling）, it is a large amount of needed for now evaporating
Heat from the freezing water drop for spraying together, freezing water drop is highly exothermic supercool in very short time and freeze to form fine ice
Crystalline substance, finally falls into fluid state ice holding tank 10 and deposits and become in chilled water fluid state ice.Fluid state ice is stored in fluid state ice holding tank 10
Substantially liquid upper is concentrated on, bottom remains as 0 DEG C of chilled water, is persistently delivered in the presence of water circulating pump 4 at 11 and liquid
State R124 mixes, and fluidised form ice slurry is produced in and so on circulation.
So it is capable of achieving under relatively low degree of supercooling（0.5℃）Fluidised form ice slurry produce, greatly improve the ice-make cycle of system
Efficiency.
By above-mentioned description, those skilled in the art completely can be in the model without departing from this invention technological thought
In enclosing, various change and modification are carried out all within protection scope of the present invention.The unaccomplished matter of the present invention, belongs to ability
The common knowledge of field technique personnel.
Claims (4)
1. a kind of efficient ice maker, it is characterised in that：It includes handpiece Water Chilling Units（1）, the handpiece Water Chilling Units（1）With heat exchanger
（2）Series connection, the heat exchanger（2）Air pump is in series with opposite side branch road（3）With the second regulating valve（9）, second regulating valve
（9）Fluid state ice holding tank is connected with afterwards（10）, the fluid state ice holding tank（10）Inner tip is provided with nozzle（8）, it is described
Nozzle（8）The first regulating valve is connected with the pipeline of place（7）, the fluid state ice holding tank（10）Bottom have by Pipe installing
Water circulating pump（4）And switch valve（5）, first regulating valve（7）And switch valve（5）While and choke valve（6）It is connected, the section
Stream valve（6）The other end and heat exchanger（2）It is connected.
2. a kind of efficient ice maker according to claim 1, it is characterised in that：Ice maker adopts the normal butane of liquid
Or tetrafluoro monochlorethane R124 is used as water-fast working medium and water directly contact, decompression evaporation is sprayed after blending and continuously produces essence
Thread state ice slurry.
3. a kind of efficient ice maker according to claim 1, it is characterised in that：The maximum pressure control of ice maker inside
Within 2.5atm, maximal pressure force value is less than 1.6atm when the use of normal butane being working medium.
4. using the ice making method of any one efficient ice maker of claim 1-3, it is characterised in that it includes following step
Suddenly：
1）Using small-sized handpiece Water Chilling Units（1）, 4 DEG C of cold water are produced with air source, it is then sent to screw sleeve type heat exchanger（2）,
With by air pump（3）The overheated R124 steam heat-exchangings that compression conveying comes, by R124 subcooled liquid is condensed into, meanwhile, 4 DEG C of cold water exist
Screw sleeve type heat exchanger（2）Returning water unit after middle heat exchange intensification（1）Again by cooling down to 4 DEG C of so circulations；
2）Ice-make cycle, fluid state ice holding tank headroom space is 0 DEG C or so of superheated steam tetrafluoro monochlorethane R124, its pressure
Power about 1.64atm, by the second regulating valve（9）, in air pump（3）In the presence of compressed and be further superheated to 10 DEG C, it is pressed
Power about 2.3atm, subsequently into screw sleeve type heat exchanger（2）4 DEG C or so liquid R124 are condensed into, then through choke valve（6）
Reducing pressure by regulating flow is to about 1.95atm and by water circulating pump（4）About 0 DEG C of the chilled water sent exists（11）Place's mixing, mixed two
Temperature of liquid is planted between 0 ~ 4 DEG C, its mixing temperature can be made as close possible to 0 DEG C by controlling throttle valve opening；
3）Close 0 DEG C of mixing liquid, together in water circulating pump（4）In the presence of along pipeline through the first regulating valve（7）, finally
Into nozzle（8）, to fluid state ice holding tank（10）Middle sprinkling, controls the second regulating valve（9）Make fluid state ice holding tank（10）Top
Space pressure is maintained at 1.6atm or so, because saturation evaporating pressure of liquid R124 at 4 DEG C is 1.9atm now from nozzle
（8）Spray, to 1.6atm, liquid R124 is in fluid state ice holding tank in mixed liquor for water and the unexpected pressure drop of liquid R124 mixing liquid
（10）Upper space there occurs evaporative phase-change, and big calorimetric is from the freezing water drop for spraying together, chilled water needed for now evaporating
Drop is highly exothermic supercool in very short time and freezes to be formed fine ice crystal, finally falls into fluid state ice holding tank（10）Deposit cold
Freezing in water becomes fluid state ice；
4）Fluid state ice holding tank（10）Middle stored fluid state ice concentrates on liquid upper substantially, and bottom remains as 0 DEG C of chilled water,
In water circulating pump（4）In the presence of persistently deliver to（11）Place mixes with liquid R124, and fluidised form ice slurry is produced in and so on circulation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610953622.5A CN106568253B (en) | 2016-11-03 | 2016-11-03 | Efficient ice making device and method |
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| CN201610953622.5A CN106568253B (en) | 2016-11-03 | 2016-11-03 | Efficient ice making device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486997A (en) * | 2019-07-10 | 2019-11-22 | 浙江海洋大学 | A kind of secondary method for reducing super cooling degree of water in fluidisation ice producing process that freezes |
| CN110944549A (en) * | 2017-05-25 | 2020-03-31 | 三星电子株式会社 | Steam cooking device |
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| CN105222449A (en) * | 2015-11-10 | 2016-01-06 | 天津商业大学 | Continuous solar drives contact type ice slurry generation systems |
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| JPH08210674A (en) * | 1995-02-06 | 1996-08-20 | Toshiba Corp | Ice heat storage device |
| CN1632429A (en) * | 2004-12-30 | 2005-06-29 | 上海海事大学 | Process for preparing duality ice through direct contact |
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| CN110944549A (en) * | 2017-05-25 | 2020-03-31 | 三星电子株式会社 | Steam cooking device |
| CN110486997A (en) * | 2019-07-10 | 2019-11-22 | 浙江海洋大学 | A kind of secondary method for reducing super cooling degree of water in fluidisation ice producing process that freezes |
| CN110486997B (en) * | 2019-07-10 | 2021-06-25 | 浙江海洋大学 | Method for reducing water supercooling degree in fluidized ice preparation process through secondary icing |
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| CN106568253B (en) | 2022-05-20 |
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