CN201555406U - Vacuum ice making system utilizing media to improve system performance - Google Patents
Vacuum ice making system utilizing media to improve system performance Download PDFInfo
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- CN201555406U CN201555406U CN2009202145599U CN200920214559U CN201555406U CN 201555406 U CN201555406 U CN 201555406U CN 2009202145599 U CN2009202145599 U CN 2009202145599U CN 200920214559 U CN200920214559 U CN 200920214559U CN 201555406 U CN201555406 U CN 201555406U
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Abstract
The utility model relates to a vacuum ice making system utilizing media to improve system performance, which comprises a vacuum generation system, a liquid supply system and a compression refrigerating system, wherein the vacuum generation system comprises a vacuum tank and a vacuum pump, the liquid supply system comprises a liquid supply tank, a medium tank and a water pump, the compression refrigerating system comprises a compressor, a condenser and a devaporizer, and medium water solution is formed by media dissolved in water in the liquid supply tank, is ejected into the vacuum tank after primary pre-cooling and is in flash vaporization in the vacuum tank. Before flash evaporation of water, the media can be in flash evaporation under triple-point pressure higher than that of water and carry away large volume of heat, and then temperature of water solution is reduced so as to strength pre-cooling effect. Further, flashing gas is extracted by a vacuum pump and then delivered to the liquid supply tank so as to keep vacuum degree in the vacuum tank, thereby being capable of reducing requirements of the vacuum ice making system upon the vacuum degree and correspondingly reducing requirement of load of vacuum pump to bearing capacity of the vacuum tank.
Description
Technical field
The utility model relates to a kind of vacuum ice-making system, relates in particular to a kind of vacuum ice-making system that utilizes intermediary's material to improve systematic function.
Background technology
Ice slurry has excellent flowing, conductivity of heat, very high cooling performance and high latent heat, compares with other medium, and ice slurry cooling velocity is faster, cooling effect is better.Because heat transfer and cooling characteristics that ice slurry is excellent, make the size etc. of the energy consumption of flow, water pump of heat exchanger and corresponding pipeline, equipment reduce greatly, thereby reduced its initialization and operating cost.The refrigeration capacity of ice slurry is higher than cold water, and chilling temperature is lower than cold water, can be widely used in icing cold-storage and food product refrigeration industry.
Existing most ice making method mainly relies on heat conducting mode, and ice making efficient is low, and what generate is ice cube, then also need to utilize the skates scraping to produce if need make the ice slurry, the waste that this is extra portion of energy.And the vacuum ice making is mainly taken away heat by liquid self flash distillation self temperature is reduced, to reach the effect of freezing, there is not the thermal conduction resistance problem, and can directly generates the ice slurry, and be one of Perfected process of producing at present in the ice slurry.
Utilize the patent of vacuum ice making or refrigeration to have a lot.These patents mainly lay particular emphasis on new functions expanding, system structure design and utilization of new energy resources etc.Such as: " vacuum freeze drier " of Shanghai Fu Long Science and Technology Ltd. invention lays particular emphasis on the application of vacuum freezing in the freeze drying field; " a kind of cold-trap of vacuum freeze drying " of Wu Zhongde invention relates to the structural design of vacuum refrigeration system; Chapter learns to wait " the binary ice preparation system under the Driven by Solar Energy " of people's invention to lay particular emphasis on the application of new forms of energy in the vacuum freezing field.But also there is an important problem in the vacuum ice making: present vacuum ice-making system relies on the shwoot of water to produce cold fully, and the shwoot amount of water is big; Shwoot only could take place in water below pressure is reduced to the three phase point pressure of water, it is high that this causes vacuum to vacuum chamber to require, and the vavuum pump load is bigger, and is also higher to the vacuum chamber bearing requirements.Therefore, press for that research and development are a kind of to reduce the ice-making system that vacuum is required by precooling.
The utility model content
The purpose of this utility model is to provide a kind of vacuum ice-making system that utilizes intermediary's material to improve systematic function, so that water just can freeze under the three phase point pressure state a little more than water, reduces vacuum requirements.
Reach other purposes in order to achieve the above object, the vacuum ice-making system that utilizes intermediary's material to improve systematic function of the present utility model comprises: vacuum generating system, liquid-supplying system and compression refrigerating system.
Wherein, vacuum generating system comprises: be used for the vacuum tank of ice making, link to each other with described vacuum tank and be used to extract out gas in the described vacuum tank vavuum pump, be connected described vacuum tank bottom and be used to extract out the ice stock pump of prepared ice slurry, wherein, be provided with shower nozzle in the described vacuum tank, on described vacuum tank and the pipeline that is connected of ice stock pump, be provided with stop valve, on described vacuum tank and pipeline that vavuum pump is connected, also be provided with stop valve.
Wherein, liquid-supplying system comprises: be used to store intermediary's material jar of intermediary's material, the feed tank that is used to provide intermediary's material aqueous solution, the water pump that links to each other with described feed tank link to each other with described intermediary material jar, wherein, the below is provided with that the air diffuser, the top that link to each other with intermediary material jar are provided with evaporative condenser, exhaust passage that the top is provided with to be connected with atmosphere, the tank skin in the exit that links to each other with described water pump is provided with baffle plate in the described feed tank, is provided with air bleeding valve on described exhaust passage.
Wherein, compression refrigerating system comprises: compressor, the condenser that links to each other with described compressor and evaporative condenser, link to each other with the shower nozzle of described water pump and described vacuum tank respectively and be used for the devaporizer of intermediary's material aqueous solution that preliminary precooling feed tank comes out, wherein, on described devaporizer, be provided with intake tunnel, described intake tunnel also links to each other with feed tank, and on described intake tunnel, be provided with feed water valve, on evaporative condenser and pipeline that condenser links to each other, be provided with choke valve, on the pipeline that the shower nozzle of described devaporizer and vacuum tank links to each other, be provided with stop valve.
Further, described vavuum pump can be connected described vacuum tank top; Described shower nozzle can be located at described vacuum tank top; Described devaporizer links to each other with compressor.
In sum, of the present utility modelly utilize vacuum ice-making system that intermediary's material improves systematic function to take away heat under the pressure a little more than the three phase point pressure of water by the flash distillation that intermediary's material aqueous solution takes place, aqueous temperature is reduced, realize the vacuum ice making thus.
Description of drawings
Fig. 1 is the vacuum ice-making system structural representation that utilizes intermediary's material to improve systematic function of the present utility model.
The specific embodiment
See also Fig. 1, the vacuum ice-making system that utilizes intermediary's material to improve systematic function of the present utility model comprises: vacuum generating system, liquid-supplying system, and compression refrigerating system etc.
Described vacuum generating system comprises the vacuum tank 20 that is used for ice making, link to each other with described vacuum tank 20 and be used to extract out the vavuum pump 3 of gas in the described vacuum tank, be connected described vacuum tank 20 bottoms and be used to extract out the ice stock pump 18 that prepared ice is starched, wherein, be provided with shower nozzle 1 in the described vacuum tank 20, on described vacuum tank 20 and the pipeline that is connected of ice stock pump 18, be provided with stop valve 19, on described vacuum tank 20 and pipeline that vavuum pump 3 is connected, also be provided with stop valve 2, wherein, described vavuum pump 3 is connected the top of described vacuum tank 20, and described shower nozzle 1 is located at the top of described vacuum tank 20.
Described liquid-supplying system comprises intermediary's material jar 9 of being used to store intermediary's material, the feed tank 14 that links to each other with described intermediary material jar 9, the water pump 16 that links to each other with described feed tank 14, wherein, the below is provided with that the air diffuser 13, the top that link to each other with intermediary material jar are provided with evaporative condenser 6, exhaust passage that the top is provided with to be connected with atmosphere, the tank skin in the exit that links to each other with described water pump 16 is provided with baffle plate 15 in the described feed tank 14, is provided with air bleeding valve 7 on described exhaust passage.
Described compression refrigerating system comprises compressor 12, the condenser 11 that links to each other with described compressor 12 and evaporative condenser 6, link to each other with the shower nozzle 1 of described water pump 16 and described vacuum tank 20 respectively and be used for the devaporizer 17 of intermediary's material aqueous solution that preliminary precooling come out by feed tank 14, wherein, on described devaporizer 17, be provided with intake tunnel, described intake tunnel links to each other with described feed tank 14, and on described intake tunnel, be provided with feed water valve 5, on evaporative condenser 6 and pipeline that condenser 11 links to each other, be provided with choke valve 10, on the pipeline that the shower nozzle 1 of described devaporizer 17 and vacuum tank 20 links to each other, be provided with stop valve 4.Wherein, described devaporizer 17 links to each other with compressor 12.
During ice making, close vaccum stop valve 4 and 19 earlier, move vavuum pump 3 and compression refrigerating system then, vacuumize by 3 pairs of vacuum tanks 20 of vavuum pump, make its pressure reduce to the predetermined pressure three phase point pressure of water (promptly a little more than), and delivered to feed tank 14 along pipeline by the gas that vavuum pump 3 is extracted out, incoagulability and non-capacitive gas can be disposed to atmospheric environment by the air bleeding valve 7 at feed tank 14 tops.When the pressure in vacuum chamber is about to reduce to predetermined pressure, open stop valve 8, intermediary's material enters feed tank 14 by air diffuser 13, mixes the certain density intermediary of the formation material aqueous solution with water in the feed tank 14.Can emit heat of solution after intermediary's material is water-soluble, pump to devaporizer 17 by water pump 16 then, carry out preliminary precooling.When treating that intermediary's material concentration of aqueous solution reaches normal concentration, close stop valve 8, open stop valve 4 and feed water valve 5, start water pump 16, in vacuum tank 20, spray into intermediary's material aqueous solution by shower nozzle 1, taken away by water pump 16 and baffle plate 15 is used for preventing the bubble of intermediary's material aqueous solution.
Intermediary's material aqueous solution shwoot forms in vacuum tank 20 intermediary's material steam and a certain amount of water vapour are extracted out by vavuum pump 3, to keep the vacuum in the vacuum tank 20.Owing to be dissolved with intermediary's material in the water, (soluble in water according to intermediary's Substance Properties, can emit heat of solution when water-soluble, when the three phase point parameter state of water, intermediary's material is in the superheated steam state), shwoot takes place in intermediary's material aqueous solution under the pressure of the three phase point pressure that is higher than water, at this moment flash gas mainly is intermediary's material, because intermediary's substance solution integral body is in superheat state, shwoot can carry out simultaneously in that drop is inside and outside, effectively strengthened the flash distillation intensity of drop, heat and mass efficient significantly improves.Intermediary's material shwoot is taken away a large amount of heats, has reduced the temperature of the aqueous solution, has effectively strengthened the precooling effect.The shwoot process can be carried out when being higher than the three phase point pressure of water, has reduced vacuum requirements in the vacuum tank 20, has reduced accordingly the requirement of vavuum pump load and the requirement of vacuum chamber load performance.Intermediary's material steam and water vapour are in air diffuser 13 is delivered to feed tank 14, and intermediary's material is absorbed recycling by water, and water vapour is evaporated condenser coil 6 and is condensed into water continuation utilization.Do not coagulate and during insoluble gas, unlatching air bleeding valve 7 is disposed to atmospheric environment with it when assembling in the feed tank to have; Because insoluble and incoagulable gas amount seldom, the intermediary quality of scattering and disappearing is few, can ignore.Open stop valve 19 and ice stock pump 18 when the ice in the vacuum tank 20 slurry runs up to a certain amount of the time, realize continuous ice-making.If the solution concentration in the feed tank 14 does not reach requirement, can open stop valve 8, in feed tank, feed a certain amount of intermediary material and replenish.
In sum, why the vacuum ice-making system that utilizes intermediary's material to improve systematic function of the present utility model can be in the three phase point vacuum under pressure ice making a little more than water, and its principle is:
Depress at a normal atmosphere, the boiling point of water is 100 ℃, and when pressure dropped to 611Pa, the boiling point of water was 0 ℃.Phasor by water knows that when pressure was lower than the three phase point pressure of water, water can only exist with gas phase and solid phase.When the pressure of normal temperature and pressure state water is brought down below the three phase point pressure of water rapidly, water will be in superheat state, flash distillation takes place immediately, water will be taken away a large amount of heats in evaporation process, do not having under the situation of extraneous thermal source, the temperature of water self can reduce, thereby produces refrigeration, reaches frozen state.
Because the characteristic of intermediary's material is soluble in water, can emit heat of solution when it is water-soluble, under the three phase point parameter state of water, intermediary's material is in the superheated steam state.Emit heat of solution when described intermediary material is water-soluble, by devaporizer intermediary's material aqueous solution is carried out preliminary precooling then.Flash distillation promptly takes place in intermediary's material aqueous solution under the pressure a little more than the three phase point pressure of water, flash gas mainly is intermediary's material.When intermediary's material is sprayed in the vacuum tank, be in superheat state, the flash distillation meeting is carried out simultaneously at liquid internal and outside; Intermediary's material is taken away a large amount of heats in flash process, aqueous temperature is reduced, and realizes the precooling effect thus.
More than set forth basic principle of the present utility model, operation method and major advantage have been described.The utility model is not subjected to the restriction of above-mentioned example, and the explanation in the specification and the elaboration of above-mentioned example are principle, operation method and the advantages for this patent is described.Under the prerequisite that does not break away from spirit and scope of the present utility model, the utility model has a variety of changes and improvements, and these changes and improvements all fall in the claimed scope of the present utility model.The claimed scope of the utility model is defined by claim protection book and equivalent thereof.
Claims (4)
1. vacuum ice-making system that utilizes intermediary's material to improve systematic function is characterized in that comprising:
Vacuum generating system, it comprises the vacuum tank that is used for ice making, links to each other with described vacuum tank and is used to extract out the vavuum pump of gas in the described vacuum tank, the ice stock pump that is connected described vacuum tank bottom and is used to extract out prepared ice slurry, wherein, be provided with shower nozzle in the described vacuum tank, on described vacuum tank and the pipeline that is connected of ice stock pump, be provided with stop valve, on described vacuum tank and pipeline that vavuum pump is connected, also be provided with stop valve;
Liquid-supplying system, it comprises intermediary's material jar of being used to store intermediary's material, the feed tank that is used to provide intermediary's material aqueous solution, the water pump that links to each other with described feed tank link to each other with described intermediary material jar, wherein, the below is provided with that the air diffuser, the top that link to each other with intermediary material jar are provided with evaporative condenser, exhaust passage that the top is provided with to be connected with atmosphere, the tank skin in the exit that links to each other with described water pump is provided with baffle plate in the described feed tank, is provided with air bleeding valve on described exhaust passage;
Compression refrigerating system, it comprises compressor, the condenser that links to each other with described compressor and evaporative condenser, links to each other with the shower nozzle of described water pump and described vacuum tank respectively and is used for the devaporizer of intermediary's material aqueous solution that preliminary precooling feed tank comes out, wherein, on described devaporizer, be provided with intake tunnel, described intake tunnel also links to each other with feed tank, and on described intake tunnel, be provided with feed water valve, on evaporative condenser and pipeline that condenser links to each other, be provided with choke valve, on the pipeline that the shower nozzle of described devaporizer and vacuum tank links to each other, be provided with stop valve.
2. the vacuum ice-making system that utilizes intermediary's material to improve systematic function as claimed in claim 1 is characterized in that: described vavuum pump is connected described vacuum tank top.
3. the vacuum ice-making system that utilizes intermediary's material to improve systematic function as claimed in claim 1 is characterized in that: described shower nozzle is located at described vacuum tank top.
4. the vacuum ice-making system that utilizes intermediary's material to improve systematic function as claimed in claim 1, it is characterized in that: described devaporizer links to each other with compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145599U CN201555406U (en) | 2009-12-01 | 2009-12-01 | Vacuum ice making system utilizing media to improve system performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202145599U CN201555406U (en) | 2009-12-01 | 2009-12-01 | Vacuum ice making system utilizing media to improve system performance |
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| CN201555406U true CN201555406U (en) | 2010-08-18 |
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| CN2009202145599U Expired - Fee Related CN201555406U (en) | 2009-12-01 | 2009-12-01 | Vacuum ice making system utilizing media to improve system performance |
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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 |
| CN102755760A (en) * | 2012-07-16 | 2012-10-31 | 清华大学 | Freezing-based solution regeneration method and device |
| CN104748452A (en) * | 2015-03-27 | 2015-07-01 | 中国建筑上海设计研究院有限公司 | Multi-working-condition air conditioner water chilling unit capable of preparing cold water with different temperatures at the same time |
-
2009
- 2009-12-01 CN CN2009202145599U patent/CN201555406U/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 |
| CN102755760A (en) * | 2012-07-16 | 2012-10-31 | 清华大学 | Freezing-based solution regeneration method and device |
| CN104748452A (en) * | 2015-03-27 | 2015-07-01 | 中国建筑上海设计研究院有限公司 | Multi-working-condition air conditioner water chilling unit capable of preparing cold water with different temperatures at the same time |
| CN104748452B (en) * | 2015-03-27 | 2020-06-19 | 中国建筑上海设计研究院有限公司 | Multi-working-condition air conditioner water chilling unit capable of simultaneously preparing cold water with different temperatures |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20101201 |