CN105154027B - A kind of industrial cold-carrying agent - Google Patents
A kind of industrial cold-carrying agent Download PDFInfo
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- CN105154027B CN105154027B CN201510430643.4A CN201510430643A CN105154027B CN 105154027 B CN105154027 B CN 105154027B CN 201510430643 A CN201510430643 A CN 201510430643A CN 105154027 B CN105154027 B CN 105154027B
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- refrigerating medium
- alkyl ether
- refrigerating
- glycol alkyl
- heat transfer
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Abstract
The present invention relates to a kind of industrial cold-carrying agent, and by the ethylene glycol alkyl ether or propylene glycol alkyl ether compound of weight 80~99%, 0.1~5% corrosion inhibiting and descaling agent, 0.9~10% function adjusts liquid composition.The environmentally friendly corrosion inhibiting and descaling agent non-hazardous to environment and human body is added in refrigerating medium; the corrosion inhibiting and descaling agent can be adsorbed on metal surface and form physical absorption protective film; dissolved oxygen is blocked to be spread to metal surface; redox reaction occurs with metal surface simultaneously and generates fine and close passivation rust-preventing film, inhibits metal oxidation；The present invention also selects the lower ethylene glycol alkyl ether of viscosity or propylene glycol alkyl ether compound to ensure that refrigerating heat transfer effect.Make refrigerating medium in the indirect heat transfer system of industry, Chemical Manufacture and medical building-up process at a temperature of the product is 80~200 DEG C suitable.This product is nontoxic, and conductivity of heat is excellent and safe, has extraordinary mobility at low temperature；Product does not precipitate fouling, has the characteristics such as environmental protection, refrigerating, heat transfer, inhibition, antibacterial, low viscosity, corrosion-resistant.
Description
Technical field
The invention belongs to industrial production heat transfer mediums, especially the indirect heat transfer in Chemical Manufacture and medical building-up process
Industrial cold-carrying agent in system.
Background technology
With the fast development of industrial technology, Refrigeration Technique is widely used the industries such as chemical industry, pharmacy, food.It is right
Requirement as the carrier-refrigerating medium for transmitting temperature is also higher and higher.Common refrigerating medium has ethyl alcohol, ethylene glycol, propylene glycol water
Solution and calcium chloride, sodium-chloride water solution.These refrigerating mediums are not only serious to metal equipment corrosion, substantially reduce refrigeration equipment
Service life, and heat transfer property is poor, affects heat-transfer effect.These problems restrict always the development of refrigeration industry.
In view of the above-mentioned problems, oneself has many reports, such as Chinese patent 201110252501.5, but contain nitrite in the product
Etc. components, it is very big to health and environmental hazard.A kind of corrosion protection liquid coolant is mentioned in United States Patent (USP) US5718836,
In terms of the coolant is served only for motor vehicle antifreeze fluid, and calcium and magnesium compound is specifically added into its product, this kind of compound is easily drawn
Play cooling recirculation system fouling.Dow refrigerating liquid (trade name DOWTHERMTMSR-1 and DOWFROSTTM) it is by ethylene glycol
It is base-material with propylene glycol, adds the refrigerating medium of a certain amount of corrosion inhibitor, this refrigerating medium has a good rustless property, but-
30 DEG C hereinafter, its solution viscosity dramatic will increase, mobility declines, and limits its scope of application.Therefore, exploitation refrigerating effect
Can be good, etching apparatus, environmentally friendly efficient refrigerating medium be not imperative.
Invention content
Purpose of the present invention is to overcome the defect in the presence of patent document disclosed above, provide a kind of nontoxic, non-volatile, no
Corrode metal, while there is extraordinary mobility, the excellent industrial cold-carrying agent of conductivity of heat at low temperature.
Industrial cold-carrying agent provided by the invention is by ethylene glycol alkyl ether or propylene glycol alkyl ether compound, inhibition resistance
Dirty agent, function adjust liquid composition, it is characterized in that：The refrigerating medium composition is made of the weight percent of following component：
Ethylene glycol alkyl ether or propylene glycol alkyl ether compound 80~99%
Corrosion inhibiting and descaling agent 0.1~5%
Function adjusts liquid 0.9~10%
The ethylene glycol alkyl ether or propylene glycol alkyl ether compound selects ethylene glycol monomethyl ether, ethylene glycol ethyl ethers respectively
The one kind or one kind of ether, butyl glycol ether, butyl cellosolve, propylene glycol monomethyl ether, propylene-glycol ethyl ether, propandiol butyl ether in them
It is used in mixed way above；
The corrosion inhibiting and descaling agent selects phytate, lactate, molybdate, benzoate, metasilicate, three nitrogen of benzo
Azoles, sodium gluconate, poly-aspartate, sodium isoascorbate and poly-epoxy succinic acid they one or more of mixing make
With each corrosion inhibiting and descaling agent dosage is no more than the 5% of refrigerating medium total weight；
The function adjusts liquid and selects the mixing of one or more of water, methanol, ethyl alcohol, propyl alcohol, isopropanol, ethylene glycol
It uses.
The preferred weight percent of refrigerating medium of the present invention is：
Ethylene glycol alkyl ether or propylene glycol alkyl ether compound 88~96%
Corrosion inhibiting and descaling agent 0.2~3.5%
Function adjusts liquid 2~10%.
The environmentally friendly corrosion inhibiting and descaling agent non-hazardous to environment and human body, the refrigerating medium are added in refrigerating medium of the present invention
In corrosion inhibiting and descaling agent can be adsorbed on metal surface and form " physical absorption protective film ", block dissolved oxygen etc. to expand to metal surface
It dissipates, while redox reaction occurs with metal surface and generates " densification passivation rust-preventing film ", inhibit metal oxidation.The present invention selects
The lower ethylene glycol alkyl ether of viscosity or propylene glycol alkyl ether compound are as refrigerating medium main body, to ensure that refrigerating exchanges heat
Effect.One or more of mixing that selected function adjusts liquid such as water, methanol, ethyl alcohol, propyl alcohol, isopropanol, ethylene glycol etc. make
With the functional liquid can dissolve corrosion inhibiting and descaling agent, and addition appropriate can reduce the viscosity of refrigerating medium.
The present invention has the following advantages compared with prior art products：This product is nontoxic, non-volatile reduction loss, no
Corrosion metal equipment, the service life that equipment can be extended；There is extraordinary mobility at low temperature simultaneously, be that conductivity of heat is excellent
Good and safe refrigerating medium；Product does not generate precipitation, non-scaling, has environmental protection, refrigerating, heat transfer, inhibition, antibacterial, low viscosity, resistance to
The characteristics such as corrosion；The product is suitable at a temperature of -80~200 DEG C, the refrigerating medium of industrial circle is done, particularly suitable in Chemical Manufacture
And do refrigerating medium in the indirect heat transfer system of medical building-up process.
Specific implementation mode
Carry out the specific technical solution that the present invention is further explained with reference to embodiment.
Embodiment 1
The weight group of refrigerating medium becomes：Propylene glycol monomethyl ether 95%, sodium benzoate 0.05%, sodium molybdate 0.1%, three nitrogen of benzo
Azoles 0.1%, methanol 2%, water 2.75%.The refrigerating medium freezing point is -95 DEG C hereinafter, viscosity 73.4cP at -65 DEG C, can be -65
It is used under~115 DEG C of environment temperature.Nontoxic, non-volatile, non-scaling does not go mouldy, and does not corrode metal, and low temperature flow is good.
Embodiment 2
The weight group of refrigerating medium becomes：Propandiol butyl ether 88%, sodium lactate 2.5%, poly-aspartate 0.1%, benzo three
Nitrogen azoles 0.5%, ethyl alcohol 8.9%.The refrigerating medium boiling point is 170 DEG C, and freezing point is -100 DEG C, can be in -50~165 DEG C of environment temperature
Degree is lower to be used.It can be widely applied to the fields such as food, chemical industry, pharmacy.
Embodiment 3
The weight group of refrigerating medium becomes：Propylene glycol monomethyl ether 50%, propandiol butyl ether 42%, sodium phytate 0.5%, sodium lactate
1%, poly-epoxy succinic acid 0.2%, benzotriazole 0.3%, methanol 6%.- 80 DEG C of the refrigerating medium freezing point, can -60~
It is used at a temperature of 150 DEG C.It can be applied to the industries such as beer, food, pharmacy, organosilicon and petrochemical industry.
Embodiment 4
The weight group of refrigerating medium becomes：Ethylene glycol monomethyl ether 92%, sodium phytate 1.2%, poly-epoxy succinic acid 0.2% are different anti-
Bad hematic acid sodium 0.3%, benzotriazole 0.3%, water 4%, ethylene glycol 2%.- 80 DEG C of the heat transfer medium freezing point, can -65~
It is used at a temperature of 120 DEG C.It is synthesized using medicine, petrochemical industry, the fields such as central air-conditioning.
Embodiment 5
The weight group of heat transfer medium becomes：Butyl glycol ether 94%, sodium molybdate 1%, sodium lactate 2%, benzotriazole
0.2%, water 2.8%.- 65 DEG C of the heat transfer matter freezing point or more uses at a temperature of being used in -60~170 DEG C.It can be used for eating
Product, pharmacy corporation do refrigerating medium.
Embodiment 6
The weight group of heat transfer medium becomes：Butyl cellosolve 94%, sodium metasilicate 0.2%, sodium gluconate 0.5%,
Sodium benzoate 1.5%, benzotriazole 0.2%, poly-epoxy succinic acid 0.5%, water 3.1%.- 65 DEG C of the heat transfer medium freezing point with
On, it is used at a temperature of -40~200 DEG C being used in.Nontoxic, non-volatile, nonflammable, non-scaling does not go mouldy, and does not corrode gold
Belong to, low temperature flow is good.
Embodiment 7
The weight group of refrigerating medium becomes：Ethylene glycol ethyl ether 96%, sodium benzoate 0.05%, sodium molybdate 0.1%, three nitrogen of benzo
Azoles 0.1%, methanol 1%, ethyl alcohol 1%, water 1.75%.The refrigerating medium freezing point is -70 DEG C hereinafter, can be in -60~130 DEG C of ring
It is used at a temperature of border.It can be applied to the fields such as medical synthesis, petrochemical industry, aerospace.
Embodiment 8
The weight group of refrigerating medium becomes：Propylene-glycol ethyl ether 96%, sodium phytate 1.5%, poly-epoxy succinic acid 0.2%, benzo
Triazole 0.3%, water 2%.The heat transfer matter freezing point is -95 DEG C, can be used at a temperature of -80~130 DEG C.Applied to center
Air-conditioning, petrochemical industry, aerospace, the wide temperature range refrigerating system of scientific research.
Claims (3)
1. a kind of industrial cold-carrying agent, it is characterized in that：The refrigerating medium is made of following component, and respective weight percent is：Third
Glycol methyl ether 95%, sodium benzoate 0.05%, sodium molybdate 0.1%, benzotriazole 0.1%, methanol 2%, water 2.75%；
The refrigerating medium freezing point is -95 DEG C hereinafter, viscosity 73.4cP at -65 DEG C.
2. a kind of industrial cold-carrying agent, it is characterized in that：The refrigerating medium is made of following component, and respective weight percent is：Third
Glycol butyl ether 88%, sodium lactate 2.5%, poly-aspartate 0.1%, benzotriazole 0.5%, ethyl alcohol 8.9%；
The refrigerating medium boiling point is 170 DEG C, and freezing point is -100 DEG C.
3. a kind of industrial cold-carrying agent, it is characterized in that：The refrigerating medium is made of following component, and respective weight percent is：Third
Glycol ether 96%, sodium phytate 1.5%, poly-epoxy succinic acid 0.2%, benzotriazole 0.3%, water 2%；
The refrigerating medium freezing point is -95 DEG C.
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| CN105154027B true CN105154027B (en) | 2018-07-20 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN108795391B (en) * | 2018-06-04 | 2020-07-28 | 北京中冷高科制冷设备有限公司 | Secondary refrigerant for refrigeration house refrigerating system |
| CN110684601A (en) * | 2018-07-05 | 2020-01-14 | 漳州甘净日用品有限公司 | Corrosion-free type washing machine tank decontamination sterilization effervescent tablet 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 |
| CN109337655A (en) * | 2018-10-08 | 2019-02-15 | 成都毅诚机电工程有限公司 | High-efficiency environment friendly refrigerating medium and preparation method thereof |
| CN110669480A (en) * | 2019-10-22 | 2020-01-10 | 辛健 | Efficient composite secondary refrigerant and preparation method and application thereof |
| CN110723826A (en) * | 2019-10-22 | 2020-01-24 | 辛健 | Environment-friendly, efficient and nontoxic corrosion inhibitor and preparation method and application thereof |
| CN110776877A (en) * | 2019-11-27 | 2020-02-11 | 济南鼎隆化工科技有限公司 | Water-based energy exchange medium containing hydroxylated graphene 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102250591A (en) * | 2010-09-29 | 2011-11-23 | 张显军 | Water-free coolant for engine |
| CN104388058A (en) * | 2014-10-21 | 2015-03-04 | 朝阳光达化工有限公司 | Low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant |
-
2015
- 2015-07-15 CN CN201510430643.4A patent/CN105154027B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102250591A (en) * | 2010-09-29 | 2011-11-23 | 张显军 | Water-free coolant for engine |
| CN104388058A (en) * | 2014-10-21 | 2015-03-04 | 朝阳光达化工有限公司 | Low-viscosity ultralow-temperature bidirectional wide-temperature secondary refrigerant |
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