CN104388058B - The two-way temperature refrigerating medium wide of low viscosity ultralow temperature - Google Patents
The two-way temperature refrigerating medium wide of low viscosity ultralow temperature Download PDFInfo
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- CN104388058B CN104388058B CN201410593257.2A CN201410593257A CN104388058B CN 104388058 B CN104388058 B CN 104388058B CN 201410593257 A CN201410593257 A CN 201410593257A CN 104388058 B CN104388058 B CN 104388058B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
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Abstract
The present invention discloses a kind of two-way temperature refrigerating medium wide of low viscosity ultralow temperature, and the composition that liquid is constituted is adjusted by glycol alkyl ether class compound, corrosion inhibiter, antisludging agent and function, and component and percentage by weight are as follows contained by said composition：Glycol alkyl ether class compound 80~99%, corrosion inhibiter 0.1~9%, antisludging agent 0~1%, function regulation liquid 0.9~10%, pH value 8~10.Product of the present invention is nontoxic, non-volatile reduction is lost, nonflammable, explosive, does not corrode hardware, can be with the service life of extension device；This product has extraordinary mobility at low temperature simultaneously, is the excellent and safe heat transfer medium of conductivity of heat, and product does not produce precipitation, fouling, with refrigerating, heat transfer, inhibition, antibacterial characteristic；The refrigerating medium is applied at a temperature of 75~240 DEG C, does the cold-carrying heat-transfer medium of industrial circle, is particularly well-suited to the indirect heat transfer system of Chemical Manufacture and medical building-up process.
Description
Technical field
The present invention relates to industrial production heat transfer medium, particularly in Chemical Manufacture and the indirect heat transfer of medical building-up process
The two-way temperature energy-conservation refrigerating medium wide of ultralow temperature in system.
Background technology
It is closely related all with temperature in many field of industrial production such as chemical industry, pharmacy, there is high temperature, have low temperature, there is heat absorption anti-
Should, there is exothermic reaction.In order that system temperature remain at process conditions requirement in the state of, indeed through reactor
The heat transfer medium flowed in interlayer outside internal coiled pipe or reactor is transferred into and out heat to complete.Conventional biography
Thermal medium has inorganic salts solution and alcohol solution.These aqueous solution heat transfer poor-performings, and to metal
Material corrosion is serious, and on the one hand these defects influence heat-transfer effect, on the other hand substantially reduce the service life of refrigeration plant,
Govern the development of refrigeration industry always for a long time.
Regarding to the issue above, existing many reports, mention a kind of corrosion protection liquid cooling in United States Patent (USP) US5718836
Agent, the cooling agent is served only for motor vehicle antifreeze fluid aspect, and calcium and magnesium compound is specifically added into its product, and this kind of compound is easily
Cause cooling recirculation system fouling.LG-DOW refrigerating liquid (trade name DOWTHERMTMSR-1 and DOWFROSTTM) it is by second two
Alcohol and propane diols are base-material, add the refrigerating medium of a certain amount of corrosion inhibitor, and this refrigerating medium has good rustless property, but
Below -30 DEG C, its solution viscosity dramatic will be raised, and mobility declines, and limits its range of application.Documents are speciallyyed permit
Publication number：10-228382 titles " high temperature water resistance salt constituent " disclose a kind of brine composition from glycols or the third three
Alcohol is main body, and content is 30~90%, preferably 50~80%, but following situations occur in actual applications：If polyol
Content is too low (less than 30%), then the freezing point of the aqueous solution will be very high, and the low-temperature condition for not reaching system requirements will freeze；When
Many alcohol content ＞ 80%, its solution (less than 0 DEG C) viscosity under low-temperature condition can rise rapidly, and mobility drastically declines, because
This this kind of single polyol composition is not suitable for being recycled under low-temperature condition, is adapted only to high temperature circulation system, (just as automobile
Anti-icing fluid, recycles in higher temperature, keeps not freezing in low temperature inactive state), it is unsuitable for low-temperature circulating state
Lower application.There is document to mention a kind of low viscosity functional fluids comprising methoxypolyethylene glycol in recent years, the liquid is served only for automobile system
Hydrodynamic aspect, report is yet there are no by glycol alkyl ether class compound for refrigerating medium.
In recent years LM series heat transfer medium (trade name glacial epoch refrigerant) for being promoted in Chinese market, rustless property is excellent, refrigerating
It is very capable, can be used at -100 DEG C, but this kind of product has certain volatility, is used in food, pharmaceuticals industry
Also lack safety assurance.
The content of the invention
The present invention seeks to overcome the defect in the presence of above-mentioned prior art, there is provided it is a kind of it is nontoxic, non-volatile, be difficult
Fire, do not corrode metal, while there is extraordinary mobility at low temperature, the two-way temperature wide of the excellent low viscosity ultralow temperature of conductivity of heat
Refrigerating medium, the refrigerating medium is used in -75~245 DEG C of temperature ranges.
Technical solution proposed by the present invention is：A kind of two-way temperature refrigerating medium wide of low viscosity ultralow temperature, is by glycol alkane
The composition of pyridyl ethers compound, corrosion inhibiter, antisludging agent and function regulation liquid composition, it is characterized in that：Component contained by said composition
And percentage by weight is as follows：
The preferred weight percent of refrigerating medium composition of the present invention is as follows：
Glycol alkyl ether class compound of the present invention is selected from diethylene glycol dimethyl ether, diethylene glycol ethylmethyl ether, diethyl two
Alcohol butyl oxide, dipropylene glycol methyl ether, dimethyl ether, dipropylene glycol methyl propyl ether, any one or one kind in them with
On be used in mixed way.According to the temperature in use scope according to refrigerating medium, glycol alkyl ether class compound adjusts concentration 80~99%
Interval assembles.
Described corrosion inhibiter is selected from phosphate, phytate, silicate, nitrate, lactate, nitrite, borate, molybdenum
Any one or more than one of hydrochlorate, benzoate and BTA in them are used in mixed way, and every kind of inhibiter consumption is not
More than the 5% of refrigerating medium gross weight.
These salt be sodium salt or sylvite without calcic or magnesium salts (because calcium, magnesium salts easily produce precipitation, fouling), so being it
In one or more be used in mixed way.
It is of the present invention choosing plus antisludging agent be poly-epoxy succinic acid, poly-aspartate, S- carboxyethyls sulfosuccinic acid it
In any one or more than one be used in mixed way.The selected antisludging agent for adding of refrigerating medium of the present invention clusters scale inhibition for new
Agent, such as poly-epoxy succinic acid, poly-aspartate, S- carboxyethyl sulfosuccinic acids, it adds total amount to be no more than refrigerating medium gross weight
1%, it is suitable generally in the range of 0.1~0.5%.The addition of these corrosion inhibiting and descaling agents can reach scale inhibition, corrosion protection, antibacterial
And other effects.
Described function regulation liquid from water, methyl alcohol, ethanol, propyl alcohol, isopropanol, ethylene glycol in them any one or
More than one are used in mixed way.The functional liquid can dissolve corrosion inhibiting and descaling agent, and appropriate addition can reduce the viscosity of refrigerating medium.
The pH value of refrigerating medium of the present invention should be controlled in the range of 8~10, and such as pH value is less than 7, then use NaOH or KOH
Withered etc. industrial soda whole, because when pH value is less than 7, some corrosion inhibiter will be ineffective, it may occur that corrosion phenomenon.
The present invention has advantages below compared with prior art products：Product of the present invention is nontoxic, non-volatile reduction is damaged
Consumption, it is nonflammable, explosive, do not corrode hardware, can be with the service life of extension device；This product has non-at low temperature simultaneously
Often good mobility, is the excellent and safe heat transfer medium of conductivity of heat, and product does not produce precipitation, fouling, with refrigerating, heat transfer,
Inhibition, antibacterial characteristic；The refrigerating medium is applied at a temperature of -75~240 DEG C, does the cold-carrying heat-transfer medium of industrial circle, especially
Suitable for Chemical Manufacture and the indirect heat transfer system of medical building-up process.
Specific embodiment
Specific embodiments of the present invention are expanded on further with reference to embodiment.
Embodiment 1
The weight of refrigerating medium is constituted：Diethylene glycol dimethyl ether 95%, Sodium Benzoate 0.05%, sodium molybdate 0.1%, sodium nitrate
2%, BTA 0.1%, water 2.75%.The freezing point of the refrigerating medium is less than -80 DEG C, more than 190 DEG C of boiling point, and it can be with
Do refrigerating medium in the environment of -40~185 DEG C, nontoxic, non-volatile, nonflammable, non-scaling, do not go mouldy, do not corrode metal, low temperature
Good fluidity, circulation conveying is convenient.
Embodiment 2
The weight of refrigerating medium is constituted：Dipropylene glycol methyl ether 88%, natrium nitrosum 2%, poly-aspartate 0.6%, ethanol
5%, water 4.4%.The freezing point of the refrigerating medium be less than -80 DEG C, more than 185 DEG C of boiling point, viscosity 72.7cP at -70 DEG C, can -
Used under 60~150 DEG C of environment temperature.Nontoxic, non-volatile, nonflammable, non-scaling, do not go mouldy, do not corrode metal, low temperature stream
Dynamic property is good, can be widely applied to the fields such as food, chemical industry, pharmacy.
Embodiment 3：
The weight of refrigerating medium is constituted：Diethylene glycol ethylmethyl ether 95%, sodium molybdate 1%, sodium nitrate 1.5%, the nitrogen of benzo three
Azoles 0.1%, S- carboxyethyls sulfosuccinic acid 0.4%, water 2%.The freezing point of the refrigerating medium is less than -80 DEG C, 176 DEG C of boiling point with
On, viscosity 68.88cP at -75 DEG C can be used under -75~170 DEG C of environment temperature.It is nontoxic, non-volatile, nonflammable, no
Fouling, do not go mouldy, do not corrode metal, low temperature flow is good.
Embodiment 4：
The weight of refrigerating medium is constituted：Dipropylene glycol methyl propyl ether 98%, sodium phosphate 0.5%, sodium tetraborate 0.1%, nitric acid
Sodium 0.3%, BTA 0.1%, water 1%.The freezing point of the refrigerating medium be less than -75 DEG C, more than 200 DEG C of boiling point, can -
Used under 70~190 DEG C of environment temperature.
Embodiment 5：
The weight of refrigerating medium is constituted：Dimethyl ether 97%, sodium phytate 0.8%, BTA 0.1% is sub-
Sodium nitrate 1%, water 1.1%.The freezing point of the refrigerating medium is more than -80 DEG C, more than 175 DEG C of boiling point, and -75 DEG C of viscosity are 37.98cP,
Can be used under -75~175 DEG C of environment temperatures.
Embodiment 6：
The weight of refrigerating medium is constituted：Dibutyl ethylene glycol ether 91%, sodium phosphate 1%, sodium nitrate 2%, sodium molybdate
0.5%, BTA 0.2%, water 5.3%.The freezing point of the refrigerating medium be more than -55 DEG C, more than 253 DEG C of boiling point, can -
Used under 50~245 DEG C of environment temperatures.It is applied to beer, food, pharmacy and chemical enterprise and does refrigerating medium, it is safe and reliable.
Embodiment 7：
The weight of refrigerating medium is constituted：Diethylene glycol dimethyl ether 50%, DPG ethyl methyl ether 42%, sodium phytate 1.5% gathers
Epoxysuccinic acid 0.2%, NaOH 0.2%, BTA 0.1%, water 6%.- 70 DEG C of the freezing point of the refrigerating medium, can be with
Used at a temperature of -65~150 DEG C.It is applied to beer, food, pharmacy, organosilicon and petrochemical enterprise and does refrigerating medium.
Embodiment 8：
The weight of refrigerating medium is constituted：Dipropylene glycol methyl ether 49%, dimethyl ether 45%, sodium molybdate 1%, lactic acid
Sodium 2%, BTA 0.2%, water 2.8%.More than -65 DEG C of the freezing point of the refrigerating medium, can be used in -60~165 DEG C of temperature
Used under degree.Can be used for food, pharmacy corporation and do refrigerating medium.
Embodiment 9：
The weight of refrigerating medium is constituted：Diethylene glycol ethylmethyl ether 54%, dibutyl ethylene glycol ether 40%, sodium metasilicate
0.5%, Sodium Benzoate 0.5%, sodium nitrate 2%, BTA 0.2%, water 2.8%.- 55 DEG C of the freezing point of the refrigerating medium with
On, used at a temperature of -50~220 DEG C being used in.
Embodiment 10：
The weight of refrigerating medium is constituted：Dipropylene glycol methyl ether 56%, dibutyl ethylene glycol ether 38%, sodium metasilicate 0.2%,
Natrium nitrosum 0.5%, Sodium Benzoate 1.5%, BTA 0.2%, S- carboxyethyls sulfosuccinic acid 0.5%, water 3.1%.
More than -65 DEG C of the freezing point of the refrigerating medium, uses at a temperature of being used in -60~230 DEG C.It is nontoxic, non-volatile, nonflammable, no
Fouling, do not go mouldy, do not corrode metal, low temperature flow is good.
Claims (6)
1. the two-way temperature refrigerating medium wide of a kind of low viscosity ultralow temperature, it is characterized in that：The refrigerating medium is made up of following component, and its is each
Percentage by weight is as follows：
Diethylene glycol dimethyl ether 95%, Sodium Benzoate 0.05%, sodium molybdate 0.1%, sodium nitrate 2%, BTA 0.1%, water
2.75%；
The freezing point of the refrigerating medium is less than -80 DEG C, more than 190 DEG C of boiling point.
2. the two-way temperature refrigerating medium wide of a kind of low viscosity ultralow temperature, it is characterized in that：The refrigerating medium is made up of following component, and its is each
Percentage by weight is as follows：
Dipropylene glycol methyl ether 88%, natrium nitrosum 2%, poly-aspartate 0.6%, ethanol 5%, water 4.4%；
The freezing point of the refrigerating medium is less than -80 DEG C, more than 185 DEG C of boiling point.
3. the two-way temperature refrigerating medium wide of a kind of low viscosity ultralow temperature, it is characterized in that：The refrigerating medium is made up of following component, and its is each
Percentage by weight is as follows：
Diethylene glycol ethylmethyl ether 95%, sodium molybdate 1%, sodium nitrate 1.5%, BTA 0.1%, S- carboxyethyl sulfosuccinics
Acid 0.4%, water 2%；
The freezing point of the refrigerating medium is less than -80 DEG C, more than 176 DEG C of boiling point.
4. the two-way temperature refrigerating medium wide of a kind of low viscosity ultralow temperature, it is characterized in that：The refrigerating medium is made up of following component, and its is each
Percentage by weight is as follows：
Dipropylene glycol methyl propyl ether 98%, sodium phosphate 0.5%, sodium tetraborate 0.1%, sodium nitrate 0.3%, BTA 0.1%,
Water 1%；
The freezing point of the refrigerating medium is less than -75 DEG C, more than 200 DEG C of boiling point.
5. the two-way temperature refrigerating medium wide of a kind of low viscosity ultralow temperature, it is characterized in that：The refrigerating medium is made up of following component, and its is each
Percentage by weight is as follows：
Dimethyl ether 97%, sodium phytate 0.8%, BTA 0.1%, natrium nitrosum 1%, water 1.1%；
The freezing point of the refrigerating medium is more than -80 DEG C, more than 175 DEG C of boiling point.
6. the two-way temperature refrigerating medium wide of a kind of low viscosity ultralow temperature, it is characterized in that：The refrigerating medium is made up of following component, and its is each
Percentage by weight is as follows：
Dibutyl ethylene glycol ether 91%, sodium phosphate 1%, sodium nitrate 2%, sodium molybdate 0.5%, BTA 0.2%, water
5.3%；
The freezing point of the refrigerating medium is more than -55 DEG C, more than 253 DEG C of boiling point.
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| CN105154027B (en) * | 2015-07-15 | 2018-07-20 | 朝阳光达化工有限公司 | A kind of industrial cold-carrying agent |
| CN105969320A (en) * | 2016-07-01 | 2016-09-28 | 南京久鼎制冷空调设备有限公司 | Low-temperature secondary refrigerant containing organic acid salts and application of low-temperature secondary refrigerant |
| CN106753269A (en) * | 2016-12-08 | 2017-05-31 | 深圳市瑞思冷链有限公司 | A kind of low temperature refrigerating medium and preparation method thereof |
| CN107512784A (en) * | 2017-09-20 | 2017-12-26 | 朝阳光达化工有限公司 | A kind of corrosion inhibiting and descaling agent for organic alcohols refrigerating system and preparation method thereof |
| CN110699047B (en) * | 2018-07-09 | 2021-03-05 | 中国石油化工股份有限公司 | Propylene glycol type cold carrier liquid |
| JP2020128838A (en) * | 2019-02-08 | 2020-08-27 | 株式会社デンソー | Heat transport system |
| CN110669480A (en) * | 2019-10-22 | 2020-01-10 | 辛健 | Efficient composite secondary refrigerant and preparation method and application thereof |
| CN111849429B (en) * | 2020-08-06 | 2021-05-07 | 深圳市百顺源节能科技有限公司 | Long-acting anhydrous anti-freezing solution for automobile engine |
| CN112745808A (en) * | 2021-01-19 | 2021-05-04 | 广东石油化工学院 | Heat management system liquid and preparation method thereof |
| CN115074091A (en) * | 2022-07-08 | 2022-09-20 | 陶普斯化学科技(北京)有限公司 | Long-acting anti-acidification high-efficiency secondary refrigerant and preparation method thereof |
| CN115710488A (en) * | 2022-10-26 | 2023-02-24 | 天津亿鼎鑫分析仪器有限公司 | Cold carrying medium |
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| CN1082991C (en) * | 1998-04-02 | 2002-04-17 | 姚明忠 | Scale-inhibiting flame-retardant corrosion-free boiling-preventing anti-freezing solution and preparation method thereof |
| US7790054B2 (en) * | 2007-06-28 | 2010-09-07 | Chevron U.S.A. Inc. | Antifreeze concentrate and coolant compositions and preparation thereof |
| CN102250591A (en) * | 2010-09-29 | 2011-11-23 | 张显军 | Water-free coolant for engine |
| CN106543964B (en) * | 2012-08-23 | 2020-03-03 | 中化蓝天集团有限公司 | Stabilizer composition suitable for HFC-161 and mixed working medium containing HFC-161 |
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