CN102901294A - Frozen steam type ice slurry preparation system by air cycle refrigeration - Google Patents
Frozen steam type ice slurry preparation system by air cycle refrigeration Download PDFInfo
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- CN102901294A CN102901294A CN2012103724364A CN201210372436A CN102901294A CN 102901294 A CN102901294 A CN 102901294A CN 2012103724364 A CN2012103724364 A CN 2012103724364A CN 201210372436 A CN201210372436 A CN 201210372436A CN 102901294 A CN102901294 A CN 102901294A
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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
- F25C2301/00—Special arrangements or features for producing ice
- F25C2301/002—Producing ice slurries
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Abstract
The invention relates to a frozen steam type ice slurry preparation system by air cycle refrigeration, comprising an ice slurry generator, an air refrigeration cycle unit and an ice-making solution cycle unit, wherein the ice slurry generator comprises an ice-making solution channel and a cool-carrying gas channel, the air refrigeration cycle unit comprises a refrigerating compressor, a hot side channel of a tubular heat exchanger, and a turbine cooler which are connected in sequence, and the ice-making solution cycle unit comprises a cold side channel of the tubular heat exchanger and an ice-making solution pump. According to the invention, the invention aims at optimizing the refrigeration cycle part of the frozen steam type ice slurry preparation system and using air refrigeration cycle to replace traditional evaporative refrigeration cycle, thus the cost can be reduced, energy consumption can be saved, and a novel structure of the ice slurry generator is provided to further simplify the device.
Description
Technical field
The present invention relates to a kind of freezing steam-type ice slurry preparation system that adopts air cycle refrigeration.
Background technology
Ice storage technology is electric power " peak load shifting " and solves one of important method of spike power shortage, and the dynamic accumulation of energy mode of starching based on ice is one of up-to-date technology in present cold-storage field.Characteristics of dynamic ice slurry is by small ice crystal and solution composition, and the diameter of ice crystals generally arrives the hundreds of micron at tens microns, and solution normally is made of water and freezing point modifier (such as ethylene glycol, ethanol or sodium chloride etc.).This mixed solution has good transmission performance, can as common fluid, in pipeline, transport or in the ice groove, store, ice crystal has phase-change characteristic in diabatic process, the moment phase transformation of ice crystals will discharge a large amount of colds, can reach the fast variation of response refrigeration duty by fast cooling, so that the cold capacity of the equal cold water of the cold Capacity Ratio of the unit volume of characteristics of dynamic ice slurry is high, thereby can reduces significantly internal diameter of delivery hose, fall low pump work consumption, reduce the physical dimension of heat exchanger.Ice-making technology generally is divided into static ice making and dynamic ice-making.Static ice-making technology develops relatively early, and it is exactly that the static ice of producing does not participate in conveying with the maximum difference of dynamic ice-making technology, and ice making is discontinuous carries out, and is difficult to use in preparing ice slurry.The main method of dynamic ice-making has subcooled water method, freezing steaming process, vacuum flashing method and gas contact method etc. at present.Particularly the contact method heat transfer resistance brief biography thermal efficiency is high, so extensively concerned in recent years.
Summary of the invention
The objective of the invention is to optimize the kind of refrigeration cycle part of freezing steam-type preparing ice slurry system, replace traditional sweat cooling circulation with air refrigeration cycle, reduce cost, energy savings consumption; In addition, the present invention also proposes novel ice generator structure, further simplified apparatus.
For realizing above technical purpose, the present invention will take following technical scheme:
A kind of freezing steam-type ice slurry preparation system that adopts air cycle refrigeration, comprise ice generator, air refrigeration cycle device and ice making solution circulating device, described ice generator comprises ice making aqueous solution channel and refrigerating gas passage, described air refrigeration cycle device comprises the refrigeration compressor that connects successively, hot-side channel and the cooling turbine unit of tube bundle heat exchanger, the entrance of this refrigeration compressor is connected with the outlet of refrigerating gas passage, and the outlet of cooling turbine unit then is connected with the entrance of refrigerating gas passage; Described ice making solution circulating device comprises cold side passage and the ice making solution pump of tube bundle heat exchanger, the entrance of this tube bundle heat exchanger cold side passage is connected with the outlet of ice making aqueous solution channel, and the ice making solution pump must export then and be connected with the entrance of ice making aqueous solution channel.
Described ice generator comprises housing and is placed side by side the interior tube bank of housing; The frozen water solution channel is the inner chamber of each tube bank, and the refrigerating gas passage is the circulation gap between each tube bank outer wall and the inner walls, and in the flow direction of the refrigerating gas in the refrigerating gas passage and the frozen water solution channel frozen water solution flow to perpendicular.
The outlet of described refrigeration compressor is connected with the entrance of tube bundle heat exchanger hot-side channel by the first resistance thermometer, and be connected the second resistance thermometer between the entrance of the outlet of tube bundle heat exchanger hot-side channel and cooling turbine unit, the first Pressure gauge, the 3rd resistance thermometer, the first stop valve, the second Pressure gauge, the 4th resistance thermometer, the first temperature sensor are installed on the connecting pipe between cooling turbine unit and the refrigerating gas passage entrance successively; The outlet of refrigerating gas passage is connected with the entrance of refrigeration compressor by the 5th resistance thermometer, the 3rd Pressure gauge, the second stop valve, the first triple valve, the 4th Pressure gauge, the 6th resistance thermometer, the 4th stop valve successively.
Be connected by the 7th resistance thermometer between the entrance of the outlet of frozen water solution channel and tube bundle heat exchanger cold side passage, be linked in sequence between the outlet of tube bundle heat exchanger cold side passage and the ice making solution pump entrance the 5th Pressure gauge, the 8th resistance thermometer and the 5th stop valve, the outlet of ice making solution pump is connected with the entrance of frozen water solution channel by the first ball valve, the 6th stop valve, the 9th resistance thermometer, the second triple valve, the 6th Pressure gauge, the tenth resistance thermometer, first flow meter, the 6th stop valve successively.
According to above technical scheme, with respect to prior art, the present invention has following beneficial effect:
The end to end refrigeration compressor of refrigerating gas passage of employing of the present invention and ice generator, tube bundle heat exchanger hot-side channel and cooling turbine unit circulation ice-making refrigerating gas, ice making aqueous solution channel end to end tube bundle heat exchanger cold side passage and the ice making solution pump circulation preparation ice making aqueous solution with ice generator, hence one can see that: the application replaces traditional sweat cooling circulation with air refrigeration cycle, reduce cost, energy savings consumption;
Ice generator of the present invention comprises refrigerating gas passage and ice making aqueous solution channel, and the ice making aqueous solution channel is that each is placed side by side in the tube bank inner chamber of housing, and the zone of refrigerating gas passage for forming between each tube bank outer wall placed side by side and the inner walls, and flow through direction and refrigerating gas the flow through direction in refrigerating gas passage of the ice making aqueous solution in the ice making aqueous solution channel is perpendicular, hence one can see that, the structure of the described ice generator of the application is similar to the tube bundle heat exchanger structure, further simplified apparatus.
Description of drawings
Fig. 1 is the freezing steam-type ice slurry preparation system structural representation with air cycle refrigeration;
Fig. 2 is the structural representation of ice generator in this system; Wherein: (a) be top view; (b) be left view.
Wherein, compressor 1, tube bundle heat exchanger 2, the first gas-liquid separator 3, turbine 4, ice generator 5, the second gas-liquid separator 6, the first triple valve 7, water jet 8, liquor pump 9, the second triple valve 10.
The specific embodiment
Explain technical scheme of the present invention below with reference to accompanying drawing.
As shown in Figure 1, the freezing steam-type ice slurry preparation system of employing air cycle refrigeration of the present invention, comprise ice generator, air refrigeration cycle device and ice making solution circulating device, described ice generator comprises ice making aqueous solution channel and refrigerating gas passage, described air refrigeration cycle device comprises the refrigeration compressor that connects successively, hot-side channel and the cooling turbine unit of tube bundle heat exchanger, the entrance of this refrigeration compressor is connected with the outlet of refrigerating gas passage, and the outlet of cooling turbine unit then is connected with the entrance of refrigerating gas passage; Described ice making solution circulating device comprises cold side passage and the ice making solution pump of tube bundle heat exchanger, the entrance of this tube bundle heat exchanger cold side passage is connected with the outlet of ice making aqueous solution channel, and the ice making solution pump must export then and be connected with the entrance of ice making aqueous solution channel.The outlet of described refrigeration compressor is connected with the entrance of tube bundle heat exchanger hot-side channel by the first resistance thermometer, and be connected the second resistance thermometer between the entrance of the outlet of tube bundle heat exchanger hot-side channel and cooling turbine unit, the first Pressure gauge, the 3rd resistance thermometer, the first stop valve, the second Pressure gauge, the 4th resistance thermometer, the first temperature sensor are installed on the connecting pipe between cooling turbine unit and the refrigerating gas passage entrance successively; The outlet of refrigerating gas passage is connected with the entrance of refrigeration compressor by the 5th resistance thermometer, the 3rd Pressure gauge, the second stop valve, the first triple valve, the 4th Pressure gauge, the 6th resistance thermometer, the 4th stop valve successively; Be connected by the 7th resistance thermometer between the entrance of the outlet of frozen water solution channel and tube bundle heat exchanger cold side passage, be linked in sequence between the outlet of tube bundle heat exchanger cold side passage and the ice making solution pump entrance the 5th Pressure gauge, the 8th resistance thermometer and the 5th stop valve, the outlet of ice making solution pump is connected with the entrance of frozen water solution channel by the first ball valve, the 6th stop valve, the 9th resistance thermometer, the second triple valve, the 6th Pressure gauge, the tenth resistance thermometer, first flow meter, the 6th stop valve successively.
In addition, be provided with the first gas-liquid separator between described tube bundle heat exchanger and the turbine, be provided with water jet between this tube bundle heat exchanger and the ice generator simultaneously, and also be provided with the second gas-liquid separator between the first triple valve and the ice generator, described water jet is collected the moisture of the first gas-liquid separator and the second gas-liquid separator, and the moisture of collecting sprayed on compressor and the turbine, to reduce its temperature.
As shown in Figure 2, ice generator of the present invention comprises housing and is placed side by side the interior tube bank of housing; The frozen water solution channel is the inner chamber of each tube bank, and the refrigerating gas passage is the circulation gap between each tube bank outer wall and the inner walls, and in the flow direction of the refrigerating gas in the refrigerating gas passage and the frozen water solution channel frozen water solution flow to perpendicular.In the accompanying drawing, tube bank is vertical direction and arranges, and the entrance of refrigerating gas passage, outlet arrange in horizontal direction.
Operation principle of the present invention is as follows:
The present invention comes cooling-air with compressor and turbine, and cooled air is as the ice making aqueous solution steam in the next freezing ice generator of refrigerant, and the simultaneously ice making aqueous solution provides cold as the cold limit of air refrigeration cycle heat exchanger; Be specially: this gas direct contact type ice making slurry system comprises gas circulation and ice making solution circulation two parts, air is at first by after the refrigeration compressor supercharging, temperature, pressure all raises, then advanced first-class heat exchanger, temperature can reduce, then externally do work by turbine expansion, air themperature further descends again, and then the air of low temperature leads to ice generator.The ice generator here adopts the structure of similar tube bundle heat exchanger, vertically arrange a lot of tube banks, spray into the ice making aqueous solution in the tube bank from top to bottom, and the cooled air level is by tube bank, after airborne cold is absorbed by the ice making aqueous solution droplets in restraining, form ice crystal, fall into following ice slurry accumulator tank.Air themperature rises, then by a triple valve get back to continue in the compressor compressed.In the ice generator, the aqueous solution that does not have to freeze is exported container, enters into the heat exchanger of air circulation by liquor pump, and air is cooled off, and enters the ice generator ice making by after triple valve and the aqueous solution of replenishing at last again, finishes a circulation.
After opening compressor 1, the air that is replenished by the first triple valve 7 enters compressor 1 after mixing by ice generator 5 later air, gas passes through tube bundle heat exchanger 2 after 1 pressurization heats up through compressor, in heat exchanger, fully by the first gas-liquid separator 3 water is imported in the water jet 8 after the heat exchange cooling, dry air expands by cooling turbine unit 4 and does work, temperature further reduces, this moment, the air of low temperature imported in the ice generator 5, ice generator 5 as shown in Figure 2, be one to be listed as the tube bank of vertically arranging, the aqueous solution steam of preparing ice slurry is flowing in the tube bank, Cryogenic air is skimmed over the tube bank surface, the ice making solution vapor is cooled to ice crystal, again by compressor compresses, finishes a circulation after the air that heats up afterwards mixes by gas-liquid separator 6 and additional air; Crystal ice granule falls into the collector of below in the ice generator 5, the aqueous solution of failing to freeze then leads to the cold limit of tube bundle heat exchanger 2, high temperature air in order to cooling compressor 1 outlet, then again lead in the ice generator 5 after the aqueous solution of passing through liquor pump 9 and replenishing, finish a circulation; The effect of water jet 8 is the moisture of collecting gas-liquid separator separates, and water is sprayed on compressor 1 and the turbine 4, reduces its operating temperature, improves the efficient of compression and expansion.
The above by reference to the accompanying drawings preferred specific embodiment of described the present invention only is used for the explanation embodiments of the present invention; rather than as the restriction to aforementioned goal of the invention and claims content and scope; any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong to the technology of the present invention and rights protection category.
Claims (2)
1. freezing steam-type ice slurry preparation system that adopts air cycle refrigeration, it is characterized in that: comprise ice generator, air refrigeration cycle device and ice making solution circulating device, described ice generator comprises ice making aqueous solution channel and refrigerating gas passage, described air refrigeration cycle device comprises the refrigeration compressor that connects successively, hot-side channel and the cooling turbine unit of tube bundle heat exchanger, the entrance of this refrigeration compressor is connected with the outlet of refrigerating gas passage, and the outlet of cooling turbine unit then is connected with the entrance of refrigerating gas passage; Described ice making solution circulating device comprises cold side passage and the ice making solution pump of tube bundle heat exchanger, the entrance of this tube bundle heat exchanger cold side passage is connected with the outlet of ice making aqueous solution channel, and the ice making solution pump must export then and be connected with the entrance of ice making aqueous solution channel.
2. the freezing steam-type ice slurry preparation system of described employing air cycle refrigeration according to claim 1 is characterized in that: described ice generator comprises housing and is placed side by side tube bank in the housing; The frozen water solution channel is the inner chamber of each tube bank, and the refrigerating gas passage is the circulation gap between each tube bank outer wall and the inner walls, and in the refrigerating gas passage in the flow direction of refrigerating gas and the frozen water solution channel frozen water solution flow to perpendicular.
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| CN2012103724364A CN102901294A (en) | 2012-09-28 | 2012-09-28 | Frozen steam type ice slurry preparation system by air cycle refrigeration |
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| CN2012103724364A CN102901294A (en) | 2012-09-28 | 2012-09-28 | Frozen steam type ice slurry preparation system by air cycle refrigeration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458524A (en) * | 2018-03-30 | 2018-08-28 | 北京石油化工学院 | A kind of ice slurry preparation system |
| CN110793136A (en) * | 2019-11-08 | 2020-02-14 | 深圳市鹏跃新能源科技有限公司 | Ice storage air conditioning system |
| CN115014016A (en) * | 2022-06-29 | 2022-09-06 | 珠海格力电器股份有限公司 | Cold storage device, refrigeration system and cold storage method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458524A (en) * | 2018-03-30 | 2018-08-28 | 北京石油化工学院 | A kind of ice slurry preparation system |
| CN108458524B (en) * | 2018-03-30 | 2023-09-22 | 北京石油化工学院 | Ice slurry preparation system |
| CN110793136A (en) * | 2019-11-08 | 2020-02-14 | 深圳市鹏跃新能源科技有限公司 | Ice storage air conditioning system |
| CN115014016A (en) * | 2022-06-29 | 2022-09-06 | 珠海格力电器股份有限公司 | Cold storage device, refrigeration system and cold storage method |
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Application publication date: 20130130 |