CN101831277A - Phase change coolant for recycling cold energy of LNG (Liquefied Natural Gas) vaporizing station - Google Patents
Phase change coolant for recycling cold energy of LNG (Liquefied Natural Gas) vaporizing station Download PDFInfo
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- CN101831277A CN101831277A CN 201010159588 CN201010159588A CN101831277A CN 101831277 A CN101831277 A CN 101831277A CN 201010159588 CN201010159588 CN 201010159588 CN 201010159588 A CN201010159588 A CN 201010159588A CN 101831277 A CN101831277 A CN 101831277A
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Abstract
The invention discloses a phase change coolant for recycling cold energy of an LNG (Liquefied Natural Gas) vaporizing station. The coolant consists of dichloroethane, aether, ethyl acetate, ethylene glycol, surfactant and deionized water. Compared with the prior art, the phase change coolant for recycling the cold energy of the LNG (Liquefied Natural Gas) vaporizing station has proper phase change temperature and stronger phase change latent heat, the solidification temperature is 50 DEG C below zero to 5 DEG C below zero, the phase change latent heat is 210 to 300 kJ/kg, and the pipeline coagulation phenomenon does not exist substantially. The coolant has low cost, simple processing technique and high economic value.
Description
Technical field
The present invention relates to the cold storage agent field, the phase change cold accumulating agent that the specifically a kind of LNG of recovery gasification station cold energy is used.
Background technology
At present, domestic one 10 * 10
4The LNG Satellite Receiving Station of m3/d scale, can discharge cold energy every day and change into nearly 1.6 ten thousand kWh of electric energy, this cold energy major part is not recovered utilization, and the cold energy use of Large LNG receiving station also is to discharge by minimum cold energy to design, there is very most of cold energy to be discharged in the seawater, wastes.
Chinese patent application number be 00128935.7 patent of invention of " during liquefied natural gas vaporization cold utilize method " in the prior art, adopt recirculated water to reach the purpose of air-conditioning temperature-reducing as refrigerant, but because the freezing point of water is 0 ℃, very easily cause moisture freezes to cause the obstruction of flowing when natural gas liquids and water direct heat-exchange, in addition, big temperature difference heat exchange also can cause very big irreversible loss; Application number is the patent of invention of 03114438.1 " utilizing the motorcar air conditioner of cold energy of liquefied natural gas ", has designed an ethylene glycol solution and has done the refrigerant recovering cold accumulation system.Wang Qiang etc. have proposed to have the multistage cold energy recovery automotive air-conditioning system of cool storage function at the big temperature difference heat exchange gordian technique in the LNG cold recovery process, and this cold recovery system has adopted two circulations, and one is that Sweet natural gas repeatedly circulates from heating and gasifying; Another is that ethylene glycol carries cold cold-storage circulation.These two cycle through interchanger and connect, and the effect of main heat exchanger is exactly to make natural gas cold energy pass to ethylene glycol, realized by the conversion of cold cycle to refrigeration cycle, the LNG cold under the low temperature as automobile air-conditioning refrigeration.But the ethylene glycol freezing point temperature still is higher, still has refrigerant to freeze to cause the not smooth danger of flowing.
Summary of the invention
Technical assignment of the present invention provides the phase change cold accumulating agent that a kind of LNG of recovery gasification station cold energy is used.
Technical assignment of the present invention realizes that in the following manner this cold storage agent is made up of ethylene dichloride, ether, ethyl acetate, ethylene glycol, tensio-active agent and deionized water.
The mass percentage content of each composition is as follows: ethylene dichloride 10%～20%, and ether 10%～20%, ethyl acetate 10%～20%, ethylene glycol 10%～25%, tensio-active agent 2～4%, surplus is a deionized water.
The stablizer that also contains 4%-6% in the described cold storage agent.
Described stablizer is one or both a compound of chloroform, toluene.
Described tensio-active agent is one or more the compound in Sodium dodecylbenzene sulfonate, trimethylammonium hexadecyl brometo de amonio, tween-80 and the Arlacel-80.
The complete processing of described cold storage agent is as follows: ethylene dichloride, ether, ethyl acetate, ethylene glycol and deionized water are added in the container by weight percentage mix; By weight percentage tensio-active agent is joined in the above-mentioned organic solvent then, stir while adding, evenly make cold storage agent, can seal up for safekeeping standby afterwards until whole reagent mix.
The phase change cold accumulating agent that recovery LNG gasification station cold energy of the present invention is used is compared with prior art, have suitable transformation temperature and bigger latent heat of phase change, its temperature of solidification is between-50 ℃～-5 ℃, and there is not the pipeline phenomenon of condensing in latent heat of phase change substantially between 210KJ/Kg～300KJ/Kg; And this cold storage agent cost is low, and complete processing is simple, the economic worth height.
Embodiment
Embodiment 1:
Ethylene dichloride with 10%, 20% ether, 10% ethyl acetate, 25% ethylene glycol and 31% deionized water add in the container and mix; Then 4% the Sodium dodecylbenzene sulfonate and the compound of trimethylammonium hexadecyl brometo de amonio are joined in the above-mentioned organic solvent, stir while adding, evenly make cold storage agent until whole reagent mix.Pei Zhi cold storage agent like this, transformation temperature-21 ℃～-30 ℃, latent heat of phase change 256～285KJ/Kg, 0.6～0.8 millimeter of phase transformation solid grain size.
Embodiment 2:
Ethylene dichloride with 20%, 10% ether, 20% ethyl acetate, 10% ethylene glycol, 6% chloroform and 32% deionized water add in the container and mix; Then 2% the tween-80 and the compound of trimethylammonium hexadecyl brometo de amonio are joined in the above-mentioned organic solvent, stir while adding, evenly make cold storage agent until whole reagent mix.Pei Zhi cold storage agent like this, transformation temperature-18 ℃～-26 ℃, latent heat of phase change 248～283KJ/Kg, 0.5～0.7 millimeter of phase transformation solid grain size.
Embodiment 3:
Ethylene dichloride with 15%, 15% ether, 15% ethyl acetate, 18% ethylene glycol, 4% toluene and 30% deionized water add in the container and mix; Compound with 3% Arlacel-80, Sodium dodecylbenzene sulfonate and trimethylammonium hexadecyl brometo de amonio joins in the above-mentioned organic solvent then, stirs while adding, and evenly makes cold storage agent until whole reagent mix.Pei Zhi cold storage agent like this, transformation temperature-23 ℃～-34 ℃, latent heat of phase change 251～289KJ/Kg, 0.4～0.7 millimeter of phase transformation solid grain size.
Embodiment 4:
The compound of the ethylene dichloride with 12%, 19% ether, 11% ethyl acetate, 18% ethylene glycol, 5% toluene and chloroform and 31% deionized water add in the container and mix; Compound with 4% Arlacel-80, Sodium dodecylbenzene sulfonate and tween-80 joins in the above-mentioned organic solvent then, stirs while adding, and evenly makes cold storage agent until whole reagent mix.Pei Zhi cold storage agent like this, transformation temperature-47 ℃, latent heat of phase change 212KJ/Kg, 0.1 millimeter of phase transformation solid grain size.
Claims (6)
1. one kind is reclaimed the phase change cold accumulating agent that LNG gasification station cold energy is used, and it is characterized in that this cold storage agent is made up of ethylene dichloride, ether, ethyl acetate, ethylene glycol, tensio-active agent and deionized water.
2. the phase change cold accumulating agent that recovery LNG gasification station cold energy according to claim 1 is used, the mass percentage content that it is characterized in that each composition is as follows: ethylene dichloride 10%～20%, ether 10%～20%, ethyl acetate 10%～20%, ethylene glycol 10%～25%, tensio-active agent 2～4%, surplus are deionized water.
3. the phase change cold accumulating agent that recovery according to claim 1 LNG gasification station cold energy is used is characterized in that also containing in the described cold storage agent stablizer of 4%-6%.
4. the phase change cold accumulating agent that recovery according to claim 3 LNG gasification station cold energy is used is characterized in that described stablizer is one or both a compound of chloroform, toluene.
5. the phase change cold accumulating agent that recovery according to claim 1 LNG gasification station cold energy is used is characterized in that described tensio-active agent is one or more the compound in Sodium dodecylbenzene sulfonate, trimethylammonium hexadecyl brometo de amonio, tween-80 and the Arlacel-80.
6. the phase change cold accumulating agent that recovery according to claim 1 LNG gasification station cold energy is used is characterized in that the complete processing of described cold storage agent is as follows: ethylene dichloride, ether, ethyl acetate, ethylene glycol and deionized water are added in the container by weight percentage mix; By weight percentage tensio-active agent is joined in the above-mentioned organic solvent then, stir while adding, evenly make cold storage agent, can seal up for safekeeping standby afterwards until whole reagent mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101595887A CN101831277B (en) | 2010-04-29 | 2010-04-29 | Phase change coolant for recycling cold energy of LNG (Liquefied Natural Gas) vaporizing station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101595887A CN101831277B (en) | 2010-04-29 | 2010-04-29 | Phase change coolant for recycling cold energy of LNG (Liquefied Natural Gas) vaporizing station |
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| CN101831277A true CN101831277A (en) | 2010-09-15 |
| CN101831277B CN101831277B (en) | 2012-09-26 |
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| CN2010101595887A Active CN101831277B (en) | 2010-04-29 | 2010-04-29 | Phase change coolant for recycling cold energy of LNG (Liquefied Natural Gas) vaporizing station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927645A (en) * | 2012-11-15 | 2013-02-13 | 上海佳豪船舶工程设计股份有限公司 | Cold-energy utilization device and method for ships using liquefied natural gas as fuel |
| CN111826125A (en) * | 2019-04-23 | 2020-10-27 | 中国科学院大连化学物理研究所 | Phase change material for cold accumulation at low temperature of-68 to-75 ℃ and preparation and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281593A (en) * | 1990-03-29 | 1991-12-12 | Chubu Electric Power Co Inc | Water-containing cold-accumulation material and cold-accumulation method |
| WO1997039081A1 (en) * | 1996-04-16 | 1997-10-23 | E.I. Du Pont De Nemours And Company | 1,1,2,2,3,3,4,4-octafluorobutane compositions |
| CN1321721A (en) * | 2001-04-17 | 2001-11-14 | 杨俊峰 | Heat conducting solution and its radiator |
| CN1977022A (en) * | 2004-06-29 | 2007-06-06 | 纳幕尔杜邦公司 | Refrigerant compositions comprising functionalized organic compounds and uses thereof |
| JP2007218573A (en) * | 2006-01-18 | 2007-08-30 | Kansai Electric Power Co Inc:The | Cooling method using lng cold, and cold storage device |
| CN101285664A (en) * | 2007-04-09 | 2008-10-15 | 李建民 | Supercritical phase-change intensified heat diffusion method and its heat-transfer medium and applications |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3281593B2 (en) * | 1998-01-27 | 2002-05-13 | 株式会社神戸製鋼所 | Steel sheet thickness control method |
-
2010
- 2010-04-29 CN CN2010101595887A patent/CN101831277B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281593A (en) * | 1990-03-29 | 1991-12-12 | Chubu Electric Power Co Inc | Water-containing cold-accumulation material and cold-accumulation method |
| WO1997039081A1 (en) * | 1996-04-16 | 1997-10-23 | E.I. Du Pont De Nemours And Company | 1,1,2,2,3,3,4,4-octafluorobutane compositions |
| CN1321721A (en) * | 2001-04-17 | 2001-11-14 | 杨俊峰 | Heat conducting solution and its radiator |
| CN1977022A (en) * | 2004-06-29 | 2007-06-06 | 纳幕尔杜邦公司 | Refrigerant compositions comprising functionalized organic compounds and uses thereof |
| JP2007218573A (en) * | 2006-01-18 | 2007-08-30 | Kansai Electric Power Co Inc:The | Cooling method using lng cold, and cold storage device |
| CN101285664A (en) * | 2007-04-09 | 2008-10-15 | 李建民 | Supercritical phase-change intensified heat diffusion method and its heat-transfer medium and applications |
Non-Patent Citations (1)
| Title |
|---|
| 《山东建筑大学学报》 20080831 王强，韩建玲，刘晓东 《LNG冷能回收利用在我国的发展前景》 全文 第23卷, 第4期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927645A (en) * | 2012-11-15 | 2013-02-13 | 上海佳豪船舶工程设计股份有限公司 | Cold-energy utilization device and method for ships using liquefied natural gas as fuel |
| CN111826125A (en) * | 2019-04-23 | 2020-10-27 | 中国科学院大连化学物理研究所 | Phase change material for cold accumulation at low temperature of-68 to-75 ℃ and preparation and application thereof |
| CN111826125B (en) * | 2019-04-23 | 2022-03-08 | 中国科学院大连化学物理研究所 | Phase change material for low-temperature cold accumulation at-68 to-75 ℃ and preparation and application thereof |
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| Publication number | Publication date |
|---|---|
| CN101831277B (en) | 2012-09-26 |
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Address after: 100010 Beijing City, Dongcheng District Chaoyangmen North Street, No. 25 building, Chinese CNOOC Offshore Oil Corporation, the Ministry of science and technology Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: CNOOC Petrochemical Engineering Co Ltd Address before: 100010 Beijing City, Dongcheng District Chaoyangmen North Street, No. 25 building, Chinese CNOOC Offshore Oil Corporation, the Ministry of science and technology Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: China National Offshore Oil Shandong Chemical Engineering Co., Ltd. |
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