CN202420067U - Continuous ice slurry preparation system employing vacuum freezing method - Google Patents
Continuous ice slurry preparation system employing vacuum freezing method Download PDFInfo
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- CN202420067U CN202420067U CN2012200154097U CN201220015409U CN202420067U CN 202420067 U CN202420067 U CN 202420067U CN 2012200154097 U CN2012200154097 U CN 2012200154097U CN 201220015409 U CN201220015409 U CN 201220015409U CN 202420067 U CN202420067 U CN 202420067U
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Abstract
The utility model discloses a continuous ice slurry preparation system employing a vacuum freezing method. The continuous ice slurry preparation system comprises a precooling system which is connected with a water inlet system, wherein the precooling system is connected with a vacuum tank through a pipeline, the vacuum tank is connected with a cool trap water catcher through a pipeline, and the cool trap water catcher is connected with a vacuum pump so as to jointly form an ice slurry preparation system employing the vacuum freezing method; the lower part of the vacuum tank is provided with a stirring machine; and the vacuum tank is also connected with an ice storage tank through an ice slurry pump, the ice storage tank is connected with a circulating water pump, and the circulating water pump is also connected with the water inlet system and feeds circulating water into the vacuum tank once again. The water is sprayed and atomized in the vacuum tank so that part of liquid drops are gasified and evaporated and part of liquid drops are frozen into ice crystals; atomized water vapor is trapped by using the cool trap water catcher, and non-condensable gas in the system is pumped out by using the vacuum pump; the ice storage tank is arranged in the system so as to realize the collection and storage of the ice crystals; and a filter screen is arranged in the ice storage tank, so that the water can be pumped out from the lower part of the ice storage tank, is fed into a vacuum chamber again and is used for preparing the ice crystals. The preparation method is efficient, convenient to operate and easy to implement.
Description
Technical field
The utility model relates to a kind of preparation system of icing slurry or binary ice, relates in particular to a kind of continuous vacuum freezing ice slurry preparation system.
Background technology
The ice cold-storage is the important means of electric load peak load shifting, and in developed country's popularization and application, China also widelys popularize in the process.Different according to ice making and ice-melt principle, ice storage technology mainly is divided into static ice cold-storage and dynamic ice cold-storage two big classes.Wherein static ice cold-storage is main with ice ball type and coiled mainly, and domestic ice cold-storage engineering almost is static ice storage technology all at present.But static ice storage technology exists the inherent technology defective that can't overcome; Mainly show as in ice-making process water freeze to be under static state to accomplish through the heat-conducting mode of poor efficiency; And along with the thickening of ice sheet; Thermal conduction resistance strengthens gradually, and the Energy Efficiency Ratio of refrigeration host computer seriously reduces (generally can decay to 60% under the conventional cold water air conditioning condition) in the whole ice making process of cool, increases the energy consumption cost of ice cold-storage.In order to improve the inherent shortcoming of static ice cold-storage; Japan just takes the lead in launching the dynamic ice cold-storage Study on Technology since the eighties in last century, and the method that current domestic and international ice slurry is produced roughly can be divided into following several kinds: facing, subcooled water method, contact method, fluidized bed process and vacuum-freezing process.Facing is owing to researching and developing early, and is ripe relatively at present, but facing needs mechanical agitation, and mechanical breakdown is frequent. Cross cold process and obtained extensive studies and preliminary commercialization demonstration in Japan; The shortcoming of crossing cold process is that the control of degree of supercooling is comparatively complicated, and it is stifled that ice takes place easily.Vacuum-freezing process is considered to a kind of energy-conservation, efficient, green ice slurry preparation system, and it adopts water to make cold-producing medium, when the ice slurry generates, is direct contact heat-exchanging efficiently.External existing business-like system is in operation, but external system has mostly adopted expensive steam compression machine, system complex.Domestic relevant patent such as CN200710044516.6 (a kind of preparation method of binary ice and device thereof); CN200620049520.2 (vacuum refrigeration steam absorption binary ice preparation facilities) CN200620047224.9 (water vapour compression formula binary ice vacuum preparation facilities); Though mentioned vacuum refrigeration ratio juris and device; But its ice slurry stocking system fails and ices the slurry generation system to constitute a closed circulation, and fails to make full use of the cold of water in the mixture of ice and water that comes out in the vacuum chamber.In sum, domestic as yet not relevant for the research of the continuous preparation system of vacuum-freezing process till the position up till now.
The utility model content
The purpose of the utility model is to provide a kind of continuous vacuum freezing ice slurry preparation system, and adopts the steam catching mode of fairly simple easy realization.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of continuous vacuum freezing ice slurry preparation system; It comprises that the chilldown system that is connected with water inlet system connects; Chilldown system is connected with vacuum tank through pipeline; Vacuum tank is connected with the cold-trap water vessel through pipeline, and the cold-trap water vessel is connected with vavuum pump, thereby has formed vacuum-freezing process preparation ice slurry system jointly; Vacuum tank also is connected with Ice Storage Tank through the ice stock pump, and Ice Storage Tank is connected with water circulating pump, and water circulating pump also is connected with water inlet system, and recirculated water is sent into vacuum tank once more; Be provided with mixer in the vacuum tank.
Said chilldown system comprises forecooler, and the import department of forecooler and exit are respectively equipped with thermocouple I and thermocouple II, and the import of forecooler is connected with water inlet system, and outlet is connected with vacuum tank; Forecooler and cold-trap water vessel are shared or be respectively equipped with a refrigeration unit.
Be provided with check valve II between said vacuum tank and cold-trap water vessel.
Said cold-trap water vessel is connected with thermocouple III with refrigeration unit II, on the cold-trap water vessel, also is provided with defrosting system.
Said defrosting system comprises electric heater, and it is connected with heat water-spraying's defrosting device, and heat water-spraying's defrosting device is connected with shower nozzle in being arranged on the cold-trap water vessel through check valve III, also is provided with discharging valve in cold-trap water vessel bottom.
Said water inlet system comprises running water pipe, is provided with check valve I, filter and threeway on it successively, and threeway is connected with water circulating pump with the import of forecooler respectively.
A kind of ice slurry preparation method of continuous vacuum freezing ice slurry preparation system,
1) running water is pre-chilled to suitable temperature through chilldown system and is inhaled in the vacuum tank; Through flash distillation in vacuum tank after the nozzle atomization, the atomizing of part drop, the part drop then becomes ice crystal, thereby forms the ice slurry;
2) the vacuum tank inner bottom part is equipped with mixer, ice slurry in the jar is stirred, thereby preventing that its gathering from growing up freezes; The vacuum flashing of fortified water simultaneously.
3) the ice slurry that generates in the vacuum tank is got in the Ice Storage Tank by the sucking-off of ice stock pump by the road, thereby mixture of ice and water in the Ice Storage Tank is formed disturbance, prevents the gathering of ice crystal and grows up;
4) water circulating pump is extracted the cold water in the Ice Storage Tank out and is delivered on the water system, sends in the vacuum tank after the running water with forecooler mixes, thereby realizes making full use of of cold;
5) after a period of time operation; Condense certain thickness white layer at cold-trap water vessel inner metal surface; Cut off being connected of cold-trap water vessel and vacuum tank this moment, starts to send into the cold-trap water vessel after the electric heater heat hot water and defrosted by the mode that shower nozzle sprays to remove frost layer or the defrosting of employing nature.
The mode of said natural defrosting is: after the low-valley interval operation, whole ice slurry preparation system is out of service, opens cold-trap water vessel air intake valve this moment, and cold-trap water vessel internal pressure raises, and temperature also slowly raises, thereby reaches the purpose of nature defrosting.
The utility model with pipeline connect the running water water inlet successively, meet check valve I, filter, threeway, forecooler, vacuum tank, ice stock pump, Ice Storage Tank, water circulating pump and threeway; Again refrigeration unit I, II are connected with forecooler, cold-trap water vessel respectively; Simultaneously vacuum tank, check valve II, cold-trap water vessel and vavuum pump are connected with pipeline successively; The cold-trap water vessel also will be connected with heat water-spraying's defrosting system of mainly being made up of electric heater, heat water-spraying's defrosting device, check valve III and shower nozzle; Thermocouple I, thermocouple II and thermocouple III are used for detecting water temperature and the interior temperature of cold-trap water vessel in the forward and backward pipeline of forecooler respectively.
Before system's operation, close check valve II, check valve III and discharging valve, open vacuum pump and refrigeration unit II are pre-chilled to design temperature and the state that is evacuated with the cold-trap water vessel simultaneously; Open check valve II afterwards, with being evacuated down to setting value in the vacuum tank.
When system brings into operation, earlier check valve I, threeway connection filter and forecooler direction are opened, refrigeration unit I also brings into operation; The water that is pre-chilled to design temperature sucks atomization and vaporization in the vacuum tank through nozzle, and a part of in addition water is cooled or crystallization.Steam is inhaled in the cold-trap water vessel and is captured, and incoagulable gas then has vavuum pump to extract out.
System when being full of certain water and ice slurry in the vacuum tank, starting mixer and stirs after operation a period of time.Start the ice stock pump simultaneously, extract and in Ice Storage Tank, transport the ice slurry; After treating to hold in the Ice Storage Tank ice slurry and water of completely certain volume; The ON cycle water pump will be extracted out through the cold water behind the strainer filtering in the Ice Storage Tank, and the path of threeway all directions is all opened; Make running water and from the cold water mix in the Ice Storage Tank; The common inflow in the forecooler according to the temperature that thermocouple I, II detect, adjusted the refrigerating capacity of refrigeration unit I at any time.This moment can be complete realization ice slurry continuous preparation and concentrate.
When certain thickness is arrived in the frosting of cold-trap water vessel, open check valve III, the operation electrical heating sprays hot water through shower nozzle in the cold-trap water vessel, the cold-trap water vessel is carried out defrost handle; After defrost finishes, open discharging valve, release hot water;
Discharge water after the end, close discharging valve, proceed ice making ice storage process.So needed ice slurry amount is produced in circulation.
When reality is used, can measure the volume that designs Ice Storage Tank according to the refrigerating capacity of used refrigeration unit I and the ice slurry of required storage.Carry out the defrost process of water vessel according to practical operation situation.
The beneficial effect of the utility model is: the part drop is frozen into and is ice crystal thereby the utility model is employed in the vacuum chamber that water spraying atomization makes part drop vaporization evaporation; The steam of atomizing is then extracted out by vavuum pump through the incoagulable gas that the cold-trap water vessel captures in the system; Add Ice Storage Tank in the system, realized the collection and the storage of ice crystal; Be provided with filter screen in the Ice Storage Tank, can vacuum chamber be sent in the water extraction again from the bottom and produced ice crystal.Mixer is equipped with in the bottom in the vacuum tank, can prevent that the gathering of ice crystal from growing up, and plays the effect of strengthening vacuum flashing simultaneously.The preparation method that the utility model adopts is efficient, easy to operate, is easy to realize.
Description of drawings
Fig. 1 is the system construction drawing of the utility model.
Wherein, 1, check valve I; 2, filter; 3, threeway; 4, thermocouple I; 5, forecooler; 6, refrigeration unit I; 7, thermocouple II; 8, vacuum tank; 9, check valve II; 10, refrigeration unit II; 11, electric heater; 12, heat water-spraying's defrosting device; 13, check valve III; 14, shower nozzle; 15, cold-trap water vessel; 16, thermocouple III; 17, vavuum pump; 18, discharging valve; 19, mixer; 20, ice stock pump; 21, Ice Storage Tank; 22, water circulating pump.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Among Fig. 1; Water supply pipe is provided with check valve I1, filter 2 and threeway 3; Threeway 3 is connected with forecooler 5 through pipeline, and forecooler 5 is connected with refrigeration unit I6, is respectively equipped with thermocouple I4 and thermocouple II7 in the import and the exit of forecooler 5; Simultaneously, the import of forecooler 5 also is connected with threeway 3.The outlet of forecooler 5 is connected with vacuum tank 8.Vacuum tank 8 is connected with cold-trap water vessel 15 through check valve II9, and cold-trap water vessel 15 is connected with vavuum pump 17 with refrigeration unit II10; Be provided with shower nozzle 14 in the cold-trap water vessel 15, shower nozzle 14 is connected with heat water-spraying's defrosting device 12 through check valve III13, is provided with electric heater 11 in heat water-spraying's defrosting device 12, is provided with discharging valve 18 in cold-trap water vessel 15 bottoms.Cold-trap water vessel 15 also is provided with thermocouple III16.Forecooler 5 can use a refrigeration unit shared or respectively with cold-trap water vessel 15.
Before system's operation, close check valve II9, check valve III13 and discharging valve 18, open vacuum pump 17 and refrigeration unit II10 are pre-chilled to design temperature and the state that is evacuated with cold-trap water vessel 15 simultaneously; Open check valve II9 afterwards, with being evacuated down to setting value in the vacuum tank 8.
When system brings into operation, earlier check valve I1, threeway 3 connection filters 2 and forecooler 5 directions are opened, refrigeration unit I6 also brings into operation; The water that is pre-chilled to design temperature gets into atomization and vaporization in the vacuum tank through nozzle, and a part of in addition water is cooled or crystallization.Steam is inhaled in the cold-trap water vessel 15 and is captured, and incoagulable gas then has vavuum pump 12 to extract out.
When certain thickness is arrived in 15 frostings of cold-trap water vessel, open check valve III13, operation electric heater 11 sprays hot water through shower nozzle 14 in cold-trap water vessel 15, cold-trap water vessel 15 is carried out defrost handle; After defrost finishes, open discharging valve 18, release hot water;
Discharge water after the end, close discharging valve 18, proceed ice making ice storage process.So needed certain density ice slurry amount is produced in circulation.
Claims (7)
1. a continuous vacuum freezing ice is starched preparation system; It is characterized in that; It comprises that the chilldown system that is connected with water inlet system connects, and chilldown system is connected with vacuum tank through pipeline, and vacuum tank is connected with the cold-trap water vessel through pipeline; The cold-trap water vessel is connected with vavuum pump, thereby has formed vacuum-freezing process preparation ice slurry system jointly; Vacuum tank also is connected with Ice Storage Tank through the ice stock pump, and Ice Storage Tank is connected with water circulating pump, and water circulating pump also is connected with water inlet system, and recirculated water is sent into vacuum tank once more.
2. continuous vacuum freezing ice slurry preparation system as claimed in claim 1; It is characterized in that said chilldown system comprises forecooler, the import department of forecooler and exit are respectively equipped with thermocouple I and thermocouple II; The import of forecooler is connected with water inlet system, and outlet is connected with vacuum tank; Forecooler and cold-trap water vessel are shared or be respectively equipped with a refrigeration unit.
3. continuous vacuum freezing ice slurry preparation system as claimed in claim 2 is characterized in that said vacuum tank inside also is provided with mixer.
4. continuous vacuum freezing ice slurry preparation system as claimed in claim 1 is characterized in that, is provided with check valve II between said vacuum tank and cold-trap water vessel.
5. like claim 1 or 2 or 4 described continuous vacuum freezing ice slurry preparation systems, it is characterized in that said cold-trap water vessel is connected with thermocouple III with refrigeration unit II, on the cold-trap water vessel, also is provided with defrosting system.
6. continuous vacuum freezing ice slurry preparation system as claimed in claim 5; It is characterized in that; Said defrosting system comprises electric heater; It is connected with heat water-spraying's defrosting device, and heat water-spraying's defrosting device is connected with shower nozzle in being arranged on the cold-trap water vessel through check valve III, also is provided with discharging valve in cold-trap water vessel bottom.
7. according to claim 1 or claim 2 continuous vacuum freezing ice slurry preparation system is characterized in that said water inlet system comprises running water pipe, is provided with check valve I, filter and threeway on it successively, and threeway is connected with water circulating pump with the import of forecooler respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200154097U CN202420067U (en) | 2012-01-13 | 2012-01-13 | Continuous ice slurry preparation system employing vacuum freezing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200154097U CN202420067U (en) | 2012-01-13 | 2012-01-13 | Continuous ice slurry preparation system employing vacuum freezing method |
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| CN202420067U true CN202420067U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200154097U Expired - Fee Related CN202420067U (en) | 2012-01-13 | 2012-01-13 | Continuous ice slurry preparation system employing vacuum freezing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519193A (en) * | 2012-01-13 | 2012-06-27 | 山东大学 | System for preparing ice slurry by continuous vacuum freeze method and method for same |
| CN107166831A (en) * | 2017-07-03 | 2017-09-15 | 青岛大学 | A kind of continuous ice pellets device for making |
| CN111076464A (en) * | 2019-12-18 | 2020-04-28 | 中国科学院广州能源研究所 | Online concentrated conveying system of ice thick liquid |
-
2012
- 2012-01-13 CN CN2012200154097U patent/CN202420067U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519193A (en) * | 2012-01-13 | 2012-06-27 | 山东大学 | System for preparing ice slurry by continuous vacuum freeze method and method for same |
| CN107166831A (en) * | 2017-07-03 | 2017-09-15 | 青岛大学 | A kind of continuous ice pellets device for making |
| CN107166831B (en) * | 2017-07-03 | 2019-05-03 | 青岛大学 | A kind of continuous ice pellets device for making |
| CN111076464A (en) * | 2019-12-18 | 2020-04-28 | 中国科学院广州能源研究所 | Online concentrated conveying system of ice thick liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20130113 |