CN100342181C - High-temperature and cold-storage ice ball with hydrate - Google Patents
High-temperature and cold-storage ice ball with hydrate Download PDFInfo
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- CN100342181C CN100342181C CNB2005101002753A CN200510100275A CN100342181C CN 100342181 C CN100342181 C CN 100342181C CN B2005101002753 A CNB2005101002753 A CN B2005101002753A CN 200510100275 A CN200510100275 A CN 200510100275A CN 100342181 C CN100342181 C CN 100342181C
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/14—Thermal energy storage
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Abstract
The present invention discloses a high temperature and cold storage ice ball of hydrate, which is used for replacing a cold storage ice ball using water as the medium in the traditional ice ball type cold storage air conditioner. The high temperature and cold storage ice ball comprises a ball-shaped casing 1, water solution of tetrabutylammonium bromide is encapsulated in the ball-shaped casing 1, the water solution is added with right amount of crystal nucleating agent, the mass concentration of the tetrabutylammonium bromide in the water solution is from 16.8% to 40.5% (kg/kg), and the transformation temperature of the correspondingly generated hydrate is from 7 DEG C to 11.8 DEG C. The high temperature and cold storage ice ball of hydrate can greatly increase the coefficient of performance (COP) of a cold storage air conditioner under a cold storage mode, and thereby, the purpose of obviously saving energy is achieved.
Description
Technical field
The present invention relates to a kind of high-temperature and cold-storage ice hockey that utilizes hydrate as cool storage medium.
Technical background
Along with the increase year by year of various air conditioner users, the power consumption of air-conditioning unit occupies increasing proportion in electrical network.The handling characteristics that common air-conditioning daytime opens, shuts down night has been aggravated the peak load difference of electrical network between round the clock again.For peak clipping Pinggu, improve the rate of load condensate of electrical network, cold accumulation air-conditioner arises at the historic moment.The basic principle of cold accumulation air-conditioner is exactly to utilize night valley power more than needed to start refrigeration machine, cold is stored by cool storage medium, to daytime again released cold quantity for the air-conditioning use, to avoid or to reduce peak of power consumption electrification in period by day.
Cold accumulation air-conditioner can be divided into phase change cold-storage and two kinds of forms of non-phase change cold-storage according to the difference of cold-storage mode, and the former is as various ice cold-storages, hydrate cold-storage etc., the latter such as water cold-storage etc.Because phase change cold-storage is to utilize the latent heat of phase change of cool storage medium to store cold, so storage density of cold is big, the occupation of land space is little, and this mode has become the first-selection of cold accumulation air-conditioner.At present, the phase change cold-storage air-conditioning nearly all adopts the ice cold-storage, promptly to ice as the cold media stored.Ice-storage air-conditioning can be divided into coiled and ice ball type two major types by the difference of ice-reserving form.Coiled belongs to a kind of open system, and ice making and ice-melt are all carried out in open Ice Storage Tank, and the floor space of Ice Storage Tank is generally bigger, and loss of refrigeration capacity is also bigger, and open water environment also has certain corrosivity to the metal coil pipe simultaneously.The ice ball type cold storing system then belongs to a kind of packaged system, water is encapsulated in pellet shapes (also can be other shape) plastic housing one by one, just in the ice hockey, ice making and ice-melt are all carried out in this airtight ice hockey, form the cold accumulation system of a compact sealing in the cold-storage jar that is deposited in a sealing of a large amount of ice hockey densifications.Because the totally enclosed ice hockey of ice hockey cold-storage compact conformation has reduced the pollution of water quality to greatest extent and to the corrosivity of equipment, so the ice hockey cold-storage is a kind of well-adapted cold-storage mode.
Because the freezing point of water is 0 ℃, also needs certain degree of supercooling during ice making, the refrigeration machine evaporating temperature of therefore icing cold-storage must be reduced to-2 ℃～-5 ℃ and just can make ice.Low like this evaporating temperature makes that the coefficient of refrigerating performance (COP) of ice-storage air-conditioning when cold-storage is very low, is about 60% of cold water air-conditioning under the same terms.Make the comprehensive energy consumption of ice-storage air-conditioning unit than the handpiece Water Chilling Units energy consumption height at least 30% of non-cold-storage like this.Though what help electrical network moves Pinggu, peak, rationally utilizes electric power energy, has increased energy resource consumption, the present problem that all kinds of ice-storage air-conditioning faced that Here it is.
The present invention just is being based on above problem, propose a kind of with the cold-storage ice hockey of hydrate replacement ice as new cool storage medium, the phase transition temperature of this hydrate ice hockey (freezing point) is far above the freezing point of water, more satisfactory latent heat of phase change is also arranged, therefore in order to replace traditional ice hockey to bring significantly energy-saving benefit simultaneously for ice-storage air-conditioning.
Summary of the invention
The object of the present invention is to provide a kind of hydrate cold-storage ice hockey, is the cold-storage ice hockey of medium to replace in traditional ice ball type cold storing air-conditioning with water.This hydrate cold-storage ice hockey can promote the coefficient of refrigerating performance (COP) of cold accumulation air-conditioner under the cold-storage pattern significantly, thereby reaches remarkable purpose of energy saving.
Hydrate cold-storage ice hockey of the present invention comprises two parts, the aqueous solution of the manufacturing solid water compound of encapsulation in the first ice hockey, and it two is spherical housings of the described aqueous solution of encapsulation.
The described aqueous solution is that (chemical molecular formula is (C to TBAB
4H
9)
4NBr) the aqueous solution has also added an amount of crystal nucleating agent in the aqueous solution.The mass concentration of TBAB in the described aqueous solution is 16.8%～40.5% (kg/kg), the corresponding phase transition temperature that generates hydrate is 7 ℃～11.8 ℃, the phase transition temperature that generates hydrate becomes relation one to one with the mass concentration of TBAB in the described aqueous solution, for example, when mass concentration was 20% (kg/kg), phase transition temperature was 8.5 ℃; When mass concentration was 25% (kg/kg), phase transition temperature was 10 ℃; When mass concentration was 35% (kg/kg), phase transition temperature was 11.3 ℃.The latent heat of phase change of solid water compound is 193kJ/kg.
The preparation process of above-mentioned hydrate is the process that TBAB and crystal nucleating agent fully are dissolved in water, inject in the agitator after at first water temperature being heated to 30-35 ℃, require to add TBAB and crystal nucleating agent in proportion, be stirred to solution evenly (about 2 hours), leave standstill after 2 hours and stir 30min again, can can advance in the ice hockey then, in can, keep continuous stirring.
Described spherical housing is made by polymer such as polyethylene (hard PE), and the external diameter of spherical housing is 50mm～100mm, and the wall thickness of spherical housing is 1mm～2mm.Have one to encapsulate mouth on the spherical housing, treat that described aqueous solution perfusion finishing back encapsulation mouth seals by ultrasonic bonding.
The filled volume of tetrabutyl phosphonium bromide aqueous ammonium accounts for 88～92% of the inner total measurement (volume) of spherical housing in the described hydrate cold-storage ice hockey, to prevent that solid hydrate from generating the back and destroying spherical housing because of volume changes.
The phase transition temperature of hydrate cold-storage ice hockey of the present invention when cold-storage can arbitrarily change between 7 ℃～11.8 ℃ according to the difference of TBAB concentration of aqueous solution, add degree of supercooling needed 1 ℃～3 ℃ when generating the solid water compound by the tetrabutyl phosphonium bromide aqueous ammonium, when utilizing described hydrate cold-storage ice hockey cold-storage, the evaporating temperature of refrigeration machine can be brought up to 4 ℃～9 ℃.Such evaporating temperature is far above common ice hockey cold-storage, and coefficient of refrigerating performance (COP) is certainly also just far above common ice hockey cold-storage unit, and meets or exceeds handpiece Water Chilling Units.Therefore, utilize hydrate cold-storage ice hockey of the present invention to replace traditional ice cold-storage ice hockey, will bring significantly energy consumption reduction for ice ball type cold storing air-conditioning unit.On the other hand, because the phase transition temperature of above-mentioned hydrate is far above 0 ℃, so at cold-storage with release when cold and the refrigerating medium of ice hockey heat-shift gets final product with common cold water, and need not adopt non freezing solution such as the necessary expensive ethylene glycol solution of traditional ice ball type cold storing air-conditioning.In addition, tetrabutyl phosphonium bromide aqueous ammonium in the described hydrate cold-storage ice hockey is encapsulated in the spherical housing, isolated fully with environment, effectively prevented the chemical attack that it may cause equipment, the ice hockey cold-storage mode of packaged type is saved dosing more simultaneously.
Description of drawings
Fig. 1 is a hydrate cold-storage ice hockey profile schematic diagram of the present invention;
Fig. 2 is the profile of Fig. 1.
Description of reference numerals
1, spherical housing, 2, seal, 3, the tetrabutyl phosphonium bromide aqueous ammonium
The specific embodiment
Hydrate cold-storage ice hockey of the present invention comprises sealing spherical housing of being made by polyethylene and the tetrabutyl phosphonium bromide aqueous ammonium that is encapsulated in the spherical housing, as depicted in figs. 1 and 2.Tetrabutyl phosphonium bromide aqueous ammonium with 40.5% mass concentration is the specific embodiment of example explanation hydrate cold-storage ice hockey below.
At first prepare mass concentration and be 40.5% tetrabutyl phosphonium bromide aqueous ammonium, and add an amount of crystal nucleating agent to reduce the degree of supercooling that hydrate generates, from seal above-mentioned tetrabutyl phosphonium bromide aqueous ammonium is injected in the spherical housing of ice hockey then, above-mentioned solution charging amount accounts for 90% of ice hockey total measurement (volume) in the ice hockey.Above-mentioned spherical ice hockey external diameter is 75mm, wall thickness 1.5mm.Solution seals seal with ultrasonic bonding after filling and finishing, and so promptly forms a complete hydrate cold-storage ice hockey.
The similar common ice hockey cold accumulation air-conditioner of the using method of described hydrate cold-storage ice hockey in cold accumulation air-conditioner, being deposited in the sealing cold-storage jar of a large amount of above-mentioned ice hockey compactnesses, flow through refrigerating medium in the contact gap between ice hockey and ice hockey, can realize the cold-storage of high-temperature and cold-storage ice ball with hydrate and release cold process.Only because the theoretical phase transition temperature of above-mentioned hydrate cold-storage ice hockey is 11.8 ℃ (being decided by concentration of aqueous solution), this temperature so the refrigerating medium of cooling and thawing water compound cold-storage ice hockey adopts common cold water to get final product, need not be used non freezing solution far above 0 ℃.
Claims (5)
1, a kind of cold-storage ice hockey, comprise spherical housing (1), it is characterized in that: the aqueous solution of encapsulation TBAB in the described spherical housing (1), add an amount of crystal nucleating agent in the aqueous solution, the mass concentration of TBAB in the described aqueous solution is 16.8%～40.5% (kg/kg), and the phase transition temperature that generates hydrate accordingly is 7 ℃～11.8 ℃.
2, cold-storage ice hockey as claimed in claim 1 is characterized in that: the filled volume of described tetrabutyl phosphonium bromide aqueous ammonium accounts for 88～92% of the inner total measurement (volume) of spherical housing.
3, cold-storage ice hockey as claimed in claim 1 is characterized in that: a seal (2) is arranged on the described spherical housing (1).
4, cold-storage ice hockey as claimed in claim 1 is characterized in that: described spherical housing (1) is made by polyethylene.
5, cold-storage ice hockey as claimed in claim 1 is characterized in that: the external diameter of described spherical housing (1) is 50mm～100mm, and wall thickness is 1mm～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101002753A CN100342181C (en) | 2005-10-14 | 2005-10-14 | High-temperature and cold-storage ice ball with hydrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101002753A CN100342181C (en) | 2005-10-14 | 2005-10-14 | High-temperature and cold-storage ice ball with hydrate |
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| CN1746581A CN1746581A (en) | 2006-03-15 |
| CN100342181C true CN100342181C (en) | 2007-10-10 |
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| CNB2005101002753A Expired - Fee Related CN100342181C (en) | 2005-10-14 | 2005-10-14 | High-temperature and cold-storage ice ball with hydrate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305566B (en) * | 2011-06-28 | 2013-01-23 | 中国科学院广州能源研究所 | Phase-change material enhanced heat exchanging method capable of automatically overcoming nonuniformity of temperature |
| JP6601145B2 (en) * | 2014-11-14 | 2019-11-06 | 株式会社デンソー | Subcool release substance and method for producing the same |
| CN111171792A (en) * | 2018-11-09 | 2020-05-19 | 无锡新祥恒包装科技有限公司 | Low-cost high-cycle 2-8 ℃ phase change coolant and preparation method thereof |
| JP7275689B2 (en) * | 2019-03-15 | 2023-05-18 | パナソニックホールディングス株式会社 | Cold storage material |
| CN109913179A (en) * | 2019-03-20 | 2019-06-21 | 江南大学 | A kind of adjustable phase-change material for cold storage of temperature and preparation method thereof |
| CN113801636B (en) * | 2020-06-12 | 2023-04-28 | 张力 | Cold accumulation material, preparation method, cold accumulation liquid comprising cold accumulation material and application of cold accumulation liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2497204Y (en) * | 2001-08-14 | 2002-06-26 | 广州贝龙环保热力设备股份有限公司 | Ice-storing ball |
| US20040074629A1 (en) * | 2002-10-18 | 2004-04-22 | Noel Thomas P. | Method and thermally active convection apparatus and method for abstracting heat with circulation intermediate three dimensional--parity heat transfer elements in bi-phase heat exchanging composition |
| CN1560554A (en) * | 2004-02-18 | 2005-01-05 | 陈锦标 | Heat storing method and system |
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- 2005-10-14 CN CNB2005101002753A patent/CN100342181C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2497204Y (en) * | 2001-08-14 | 2002-06-26 | 广州贝龙环保热力设备股份有限公司 | Ice-storing ball |
| US20040074629A1 (en) * | 2002-10-18 | 2004-04-22 | Noel Thomas P. | Method and thermally active convection apparatus and method for abstracting heat with circulation intermediate three dimensional--parity heat transfer elements in bi-phase heat exchanging composition |
| CN1560554A (en) * | 2004-02-18 | 2005-01-05 | 陈锦标 | Heat storing method and system |
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| CN1746581A (en) | 2006-03-15 |
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Owner name: GUANGZHOU XINYU ENERGY STORAGE TECHNOLOGY CO., LTD Free format text: FORMER OWNER: GUANGZHOU INSTITUTE OF ENERGY CONVERSION,CAS Effective date: 20100526 |
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Free format text: CORRECT: ADDRESS; FROM: 510640 GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CAS, NO.1, NENGYUAN ROAD, WUSHANYUAN DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 510640 NO.2 NENGYUAN ROAD, WUSHAN, TIANHE DISTRICT, GUANGZHOU CITY |
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Effective date of registration: 20100526 Address after: 510640 Guangzhou city Tianhe District Wushan energy road No. 2 Patentee after: Guangzhou Senyo Thermal Storage Technology Co., Ltd. Address before: Energy road Guangzhou City, Guangdong province 510640 Wushan Park No. 1 Guangzhou Institute of Energy Conversion.CAS Patentee before: Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences |
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