CN103525371A - Lithium bromide solution for lithium bromide absorption refrigerator - Google Patents
Lithium bromide solution for lithium bromide absorption refrigerator Download PDFInfo
- Publication number
- CN103525371A CN103525371A CN201310450833.3A CN201310450833A CN103525371A CN 103525371 A CN103525371 A CN 103525371A CN 201310450833 A CN201310450833 A CN 201310450833A CN 103525371 A CN103525371 A CN 103525371A
- Authority
- CN
- China
- Prior art keywords
- lithium
- lithium bromide
- solution
- bromide
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses lithium bromide solution for a lithium bromide absorption refrigerator, which comprises the following components by mole: (1) 50 to 60 percent of lithium bromide; (2) 0.01 to 0.1 percent of lithium hydroxide; (3) 0.01 to 0.04 percent of lithium chromate; (4) 0.01 to 0.04 percent of lithium nitrate; and the balance of water. The invention develops the special lithium bromide solution for the lithium bromide absorption refrigerator, which can be used for forming a stable oxidation film layer on the surface of a carbon steel so as to effectively prevent and relieve corrosion of the lithium bromide solution to parts of the refrigerator and solve difficult problems in the industry.
Description
Technical field
The present invention relates to a kind of lithium-bromide solution for lithium-bromide absorption-type refrigerating machine, belong to chemical field
Background technology
In prior art, in refrigerating industry, lithium-bromide solution is widely used as one of absorption refrigeration agent.In lithium bromide absorbing type refrigeration, water is as refrigeration agent, and lithiumbromide is as absorption agent.Because the boiling point of lithium bromide water solution own is very high, extremely difficult volatilization, so can think that the steam on lithiumbromide saturated solution liquid level is pure water steam; At a certain temperature, the steam-laden pressure component on lithium bromide water solution liquid level is less than pure water saturation pressure component; And concentration is higher, the steam-laden pressure component on liquid level is less.So under identical temperature condition, lithium bromide water solution concentration is larger, its ability that absorbs moisture is just stronger.This namely adopts lithiumbromide as absorption agent conventionally, and water is as the reason of refrigeration agent.
Existing lithium-bromide absorption-type refrigerating machine is mainly comprised of several parts such as producer, condenser, vaporizer, resorber, interchanger, recycle pumps.Its principle of work is as follows: in lithium-bromide absorption-type refrigerating machine operational process, when lithium bromide water solution is subject to after the heating of heat medium water in producer, the water in solution is constantly vaporized; Along with the continuous vaporization of water, the lithium bromide water solution concentration in producer constantly raises, and enters resorber; Water vapour enters condenser, after the cooling water temperature in the device that is condensed, condenses, and becomes the liquid water of high pressure low temperature; When the water in condenser enters vaporizer by throttling valve, rapid expansion and vaporizing, and in vaporescence a large amount of heats that absorb chilled water in vaporizers, thereby reach the object of cooling refrigeration; In this process, water at low temperature steam enters resorber, and the lithium bromide water solution being absorbed in device absorbs, and strength of solution progressively reduces, then sends producer back to by recycle pump, completes whole circulation.So move in endless cycles, produce continuously cold.Because bromize lithium dilute solution is cooled in resorber, temperature is lower, in order to save the heat of heat dilute solution, improve the thermo-efficiency of whole device, in system, increased an interchanger, allow the high temperature strong solution of producer outflow and the low temperature dilute solution that resorber flows out carry out heat exchange, improve the temperature that dilute solution enters producer.
Yet the parts of existing lithium-bromide absorption-type refrigerating machine are all mainly to adopt carbon steel material to make, and lithium-bromide solution is a kind of stronger corrosive medium, and carbon steel material is had to stronger erosion.Therefore, how to prevent and to alleviate the corrosion of lithium-bromide solution to the parts of refrigerator, having become one of difficult problem in industry.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of lithium-bromide solution for lithium-bromide absorption-type refrigerating machine.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of lithium-bromide solution for lithium-bromide absorption-type refrigerating machine, in mole, comprise following component:
(1) lithiumbromide 50～60%;
(2) lithium hydroxide 0.01～0.1%;
(3) lithium chromate 0.01～0.04%;
(4) lithium nitrate 0.01～0.04%;
Surplus is water.
In technique scheme, take mole: the consumption of described lithiumbromide is 55%.
In technique scheme, take mole: the consumption of described lithium hydroxide is 0.07%.
In technique scheme, take mole: the consumption of described lithium chromate is 0.04%.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the present invention has developed a kind of lithium-bromide solution that is specifically designed to lithium-bromide absorption-type refrigerating machine, and it can form stable oxidation film layer at steel surface, effectively prevents and alleviates the corrosion of lithium-bromide solution to the parts of refrigerator, has solved the difficult problem in industry.
2. lithium-bromide solution configuration of the present invention rationally, not only has obvious slow releasing function to carbon steel, and can avoid bringing out pitting, avoids the generation of local corrosion.
3. lithium-bromide solution collocation method of the present invention is simple, is suitable for applying.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment mono-:
For a lithium-bromide solution for lithium-bromide absorption-type refrigerating machine, in mole, comprise following component:
(1) lithiumbromide 55%;
(2) lithium hydroxide 0.07%;
(3) lithium chromate 0.04%;
(4) lithium nitrate 0.02%;
Surplus is water.
Carry out electro-chemical test, the working area of its sample is 1 square centimeter, and remaining surface is all used polymer silica gel sealing, and chemical immersion sample size is 25mm * 25mm * 1.5mm; Sample through liquid honing to 1000#, washing, degreasing, dry up rear stand-by.Test(ing) medium adopts the lithium-bromide solution of the present embodiment.
Chemical immersion test is to carry out in autoclave, and sample immerses after medium with high pure nitrogen inflation 1 hour, and to etch under fixed temperature 200 hours; Take out after sample, in 3mol/L hydrochloric acid+0.07mol/L hexamethylenetetramine solution of 50 ℃, clean 5 minutes, and evaluate erosion rate in weightless mode.After test, whether surface produces pitting with scanning electron microscopic observation.
Test-results surface: carbon steel has entered passive state in the solution medium of the present embodiment, and widen to 200mV passive potential region, and the electrochemical stability of surperficial carbon steel is good; Meanwhile, do not find to occur pitting pattern.
Claims (4)
1. for a lithium-bromide solution for lithium-bromide absorption-type refrigerating machine, it is characterized in that, in mole, comprise following component:
(1) lithiumbromide 50～60%;
(2) lithium hydroxide 0.01～0.1%;
(3) lithium chromate 0.01～0.04%;
(4) lithium nitrate 0.01～0.04%;
Surplus is water.
2. the lithium-bromide solution for lithium-bromide absorption-type refrigerating machine according to claim 1, is characterized in that, take mole: the consumption of described lithiumbromide is 55%.
3. the lithium-bromide solution for lithium-bromide absorption-type refrigerating machine according to claim 1, is characterized in that, take mole: the consumption of described lithium hydroxide is 0.07%.
4. the lithium-bromide solution for lithium-bromide absorption-type refrigerating machine according to claim 1, is characterized in that, take mole: the consumption of described lithium chromate is 0.04%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450833.3A CN103525371A (en) | 2013-09-28 | 2013-09-28 | Lithium bromide solution for lithium bromide absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450833.3A CN103525371A (en) | 2013-09-28 | 2013-09-28 | Lithium bromide solution for lithium bromide absorption refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103525371A true CN103525371A (en) | 2014-01-22 |
Family
ID=49927732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450833.3A Pending CN103525371A (en) | 2013-09-28 | 2013-09-28 | Lithium bromide solution for lithium bromide absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103525371A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134746A (en) * | 1993-09-30 | 1996-10-30 | 罗基研究公司 | Improved triple effect absorption cycle apparatus |
| CN1220382A (en) * | 1997-10-24 | 1999-06-23 | 株式会社荏原制作所 | Absorption chiller-heater and method for forming initial anticorrosive film therefor |
-
2013
- 2013-09-28 CN CN201310450833.3A patent/CN103525371A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134746A (en) * | 1993-09-30 | 1996-10-30 | 罗基研究公司 | Improved triple effect absorption cycle apparatus |
| CN1220382A (en) * | 1997-10-24 | 1999-06-23 | 株式会社荏原制作所 | Absorption chiller-heater and method for forming initial anticorrosive film therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Performance simulation of the absorption chiller using water and ionic liquid 1-ethyl-3-methylimidazolium dimethylphosphate as the working pair | |
| JP5748794B2 (en) | Operation method of absorption heat pump | |
| CN108955014B (en) | Closed vacuum refrigeration cold accumulation equipment and method | |
| CN203533960U (en) | Solar absorption refrigeration system | |
| CN103808060A (en) | Two-stage absorption second-kind lithium bromide absorption heat pump unit with flash evaporator | |
| KR101225843B1 (en) | Absorption Type Cooler and Heater | |
| CN104454232A (en) | Fuel gas generator set waste heat utilization device | |
| Liang et al. | The latent application of ionic liquids in absorption refrigeration | |
| CN207741379U (en) | A kind of absorption deep refrigerating system of industrial waste heat driving | |
| CN104101131A (en) | Absorption refrigerator for refrigerating and heating by using recovered heat energy and refrigerating and heating method thereof | |
| CN103525371A (en) | Lithium bromide solution for lithium bromide absorption refrigerator | |
| CN103509524A (en) | Lithium bromide solution for lithium bromide absorption refrigerator | |
| CN204063674U (en) | Lithium bromide absorption refrigerating set | |
| CN204063677U (en) | A kind of coal oven dithio-gas Exposure degree water refrigeration system | |
| CN203922754U (en) | A kind of ammonia synthesis and lithium bromide absorption chiller system | |
| CN203614267U (en) | Waste heat utilization apparatus of combustion gas generating set | |
| CN203083196U (en) | Device for producing low-temperature water by means of urea waste heat | |
| CN205843121U (en) | A kind of low-temperature water heating big temperature difference type lithium bromide absorption refrigerating set | |
| JP2008267667A (en) | Absorbent for absorption chiller/heater and absorption chiller/heater | |
| CN208431975U (en) | A kind of energy recycling system in cryogenic rectification process | |
| CN102734979A (en) | Solar absorption refrigeration system | |
| KR101949679B1 (en) | Refrigeration system of recycling wasted heat type | |
| CN107781977A (en) | Residue steam Application way in a kind of polysilicon production process | |
| JP2011196580A (en) | Absorbing liquid for absorption refrigeration machine | |
| KR100841655B1 (en) | Chiller heater with refining apparatus of absorption liquids |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
|
| WD01 | Invention patent application deemed withdrawn after publication |