CN103666377A - Working medium pair for absorption energy storage circulation - Google Patents
Working medium pair for absorption energy storage circulation Download PDFInfo
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- CN103666377A CN103666377A CN201310596092.XA CN201310596092A CN103666377A CN 103666377 A CN103666377 A CN 103666377A CN 201310596092 A CN201310596092 A CN 201310596092A CN 103666377 A CN103666377 A CN 103666377A
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- China
- Prior art keywords
- working medium
- energy storage
- absorption
- absorption energy
- medium pair
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Sorption Type Refrigeration Machines (AREA)
Abstract
A working medium pair for absorption energy storage circulation comprises an aqueous solution of lithium bromide, lithium nitrate and lithium chloride, wherein the mass percentage concentration range of the solution is 40-65%. The working medium pair is applicable to the absorption energy storage circulation within a heat source temperature range of 97-137 DEG C. The working medium pair can realize a refrigeration function of an absorption storage system and store a refrigerant. Simultaneously, the working medium pair can also be used for the absorption energy storage circulation for a long time without resulting in severe corrosion of absorption energy storage equipment. The working medium pair also has an effect of increasing the energy-saving rate of a distributed combined cold, heat and power supply system when used in an absorption energy storage unit of the distributed cold, heat and power supply system.
Description
Technical field
The present invention relates to a kind of working medium pair for absorption accumulation of energy circulation, the working medium proposing, to being applicable to the various forms of absorption accumulation of energy units such as single-action, economic benefits and social benefits, belongs to absorption energy accumulating technique field.
Background technology
Absorption energy-storage system replaces absorption system to be applied to distributed CCHP system, can make other unit of combined supply system be operated near optimum operating condition, thereby improves the fractional energy savings of combined supply system.Absorption energy-storage system not only has the refrigerating function of absorption system, also can carry out the storage of energy, has higher energy storage density.
The working medium of the absorption system of current industrial use is to being the aqueous solution of lithiumbromide, and this solution also can be in absorption accumulation of energy circulation.In addition the working medium that can be used for absorption accumulation of energy circulation that, other is conventional is to also having LiCl/H
2o, NH
3/ H
2o and NaOH/H
2o etc., but these solution are all larger to the corrodibility of absorption energy storage system, are therefore not suitable for prolonged application in absorption accumulation of energy circulation.
Summary of the invention
The object of the invention is to propose a kind of working medium pair for absorption accumulation of energy circulation, to improve the accumulation of energy effect of lithium-bromide solution, life-time service can not cause serious corrosion to absorption energy storage system yet simultaneously.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of working medium pair for absorption accumulation of energy circulation, it is characterized in that: this working medium forms the aqueous solution by lithiumbromide, lithium nitrate and lithium chloride, the mass percentage concentration of the aqueous solution is in 40%～65% scope, and wherein, lithiumbromide, lithium nitrate and lithium chloride three's mass ratio is 5:1:2.
Working medium of the present invention to preferably being used in heat source temperature is the scope of 97 ℃～137 ℃.
The present invention compared with prior art, has the following advantages and the technique effect of high-lighting: the present invention adds a certain proportion of lithium chloride, lithium nitrate in lithium-bromide solution, when guaranteeing the former refrigeration capacity of absorption circulation, can also carry out storing of refrigeration agent.Use this working medium pair, both can realize the refrigerating function of absorption energy-storage system, can store refrigeration agent again.Meanwhile, this working medium, to being also used in for a long time in the absorption accumulation of energy recycle system, can not cause the heavy corrosion of absorption energy storage system.In addition, absorption energy-storage system is applied in distributed CCHP system, can make other parts of distributed CCHP system work near optimum condition, improve the off design performance of distributed CCHP system, effectively improve the fractional energy savings of distributed system.
Embodiment
Working medium provided by the invention forms the aqueous solution by lithiumbromide, lithium nitrate and lithium chloride, during preparation, be at normal temperatures lithiumbromide, lithium nitrate and lithium chloride to be mixed with water, wherein lithiumbromide, lithium nitrate and lithium chloride three's mass ratio is 5:1:2, solution quality percentage concentration is 40%～65% scope, and uses in heat source temperature is the scope of 97 ℃～137 ℃.
Embodiment:
Table 1 is that experiment records, when massfraction is 55%, and the accumulation of energy characteristic parameter that this working medium is right;
Table 2 is that experiment records, when massfraction is 40%, and the Vapor--Liquid Equilibrium Data that this working medium is right;
Table 3 is that experiment records, when massfraction is 65%, and the Vapor--Liquid Equilibrium Data that this working medium is right.
When table 1 massfraction is 55%, this working medium is to accumulation of energy characteristic
When table 2 massfraction is 40%, the Vapor--Liquid Equilibrium Data that this working medium is right
When table 3 massfraction is 65%, the Vapor--Liquid Equilibrium Data that this working medium is right
Claims (2)
1. the working medium pair for absorption accumulation of energy circulation, it is characterized in that: this working medium forms the aqueous solution by lithiumbromide, lithium nitrate and lithium chloride, the mass percentage concentration of the aqueous solution is in 40%～65% scope, and wherein, lithiumbromide, lithium nitrate and lithium chloride three's mass ratio is 5:1:2.
2. according to a kind of working medium pair for absorption accumulation of energy circulation claimed in claim 1, it is characterized in that: described working medium is to being to use in the scope of 97 ℃～137 ℃ at heat source temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596092.XA CN103666377A (en) | 2013-11-21 | 2013-11-21 | Working medium pair for absorption energy storage circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596092.XA CN103666377A (en) | 2013-11-21 | 2013-11-21 | Working medium pair for absorption energy storage circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103666377A true CN103666377A (en) | 2014-03-26 |
Family
ID=50305168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310596092.XA Pending CN103666377A (en) | 2013-11-21 | 2013-11-21 | Working medium pair for absorption energy storage circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103666377A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5108638A (en) * | 1987-06-26 | 1992-04-28 | Yazaki Corporation | Absorbent solution for use with absorption refrigeration apparatus |
| JP2000319646A (en) * | 1999-05-06 | 2000-11-21 | Yazaki Corp | Absorbing solution for absorption refrigerating machine and absorption refrigerating machine |
-
2013
- 2013-11-21 CN CN201310596092.XA patent/CN103666377A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5108638A (en) * | 1987-06-26 | 1992-04-28 | Yazaki Corporation | Absorbent solution for use with absorption refrigeration apparatus |
| JP2000319646A (en) * | 1999-05-06 | 2000-11-21 | Yazaki Corp | Absorbing solution for absorption refrigerating machine and absorption refrigerating machine |
Non-Patent Citations (1)
| Title |
|---|
| JU, WOO-SUNG等: "Measurement and analysis on physical properties of multi lithium salts solution in absorption heat pumps", 《J. OF KOREAN IND. & ENG. CHEMISTRY》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |