CN204607903U - A kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol - Google Patents
A kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol Download PDFInfo
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- CN204607903U CN204607903U CN201520299360.6U CN201520299360U CN204607903U CN 204607903 U CN204607903 U CN 204607903U CN 201520299360 U CN201520299360 U CN 201520299360U CN 204607903 U CN204607903 U CN 204607903U
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- premix
- lower boiling
- hfo
- fluorine containing
- polyether glycol
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- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The utility model discloses a kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol, can low cost premix HFO-1234ze, can obtain easily using HFO-1234ze be independent pneumatogen or the HFO-1234ze combined polyether as one of mixture haircut agent composition.The system and device of premix lower boiling Fluorine containing olefine in polyether glycol of the present utility model, it increases the three-way valve that quantitatively can add pneumatogen in combined polyether production technique circulation line, in circulation line, install that to carry out premix static mixer be hydrid component additional simultaneously.
Description
Technical field
The utility model relates to a kind of premixing system device, more specifically to a kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol.
Background technology
Hard polyurethane foams has low-down thermal conductivity and steam breathability, light weight, specific tenacity are high, in addition itself and paper, metal, timber, cement plate, brick wall plastic plate, bituminous carpet etc. have very strong cementability, do not need separately to add the advantages such as other tackiness agent, by numerous industry and civilian department are adopted.Urethane foam adopts chemical foaming agent and pneumatogen foaming.Chemical foaming agent is mainly based on water, and water generates the carbon dioxide that reactant is expanded with isocyanate reaction.Pneumatogen (sometimes claiming " auxiliary blowing agent ") is generally the lower boiling organic compound of inertia, is especially representative with fluorinated hydrocarbons.Pneumatogen and any component used not react with, this kind of low-boiling compound absorbs isocyanic ester and polyol reaction liberated heat makes it to gasify and reaches the object of foaming.
About generation to nineteen ninety nineteen sixty, polyurethane material production widely uses Chlorofluorocarbons (CFCs) (CFC) and produces porous plastics as pneumatogen.Since 1987 " Montreal Protocol " is implemented, CFC is completely forbidden to be used in polyurethane foam production.Hydrochlorofluorocarsolvent (HCFCs) compounds is containing less chlorine atom, containing hydrogen in molecule, chemical property is unstable, decompose than being easier to, usually started to decompose in comparatively lower atmosphere (in the atmospheric layer of such as HCFC-141b only about 8 years life-span, and CFC-11 is more than 60 year).The ODP value of HCFCs compound and GWP value are more much lower than CFC, less than CFC to environmental influence, are the valuable transitional surrogates of a class in CFC alternative Process.Wherein, HCFC-141b (1,1-bis-chloro-1-fluoroethane) is that a kind of main hard PU foam transitionality substitutes whipping agent, and product is used for the heat insulation foam such as refrigerator, refrigerator-freezer and building, piping insulation etc.But under the environmental stress that the whole world is increasingly serious, hydrochlorofluorocarsolvent also will to be limited and finally replaced in the application of developing country.Can be used as in many surrogates of rigid urethane foam blowing agent H CFC-141b, alkane compound because of ozone-depleting dive that value (ODP value) is zero, Greenhouse effect are very little, nontoxic, minimum and come into one's own to environmental influence.At present, pentamethylene foaming technique is widely adopted.Hydro fluoroalkanes (HFC) is also a kind of whipping agent of zero odp value, but due to higher global warming potential (GWP value), is not still desirable polyurethane foams.Fluorine containing olefine compound (HFO) does not damage the ozone layer, and GWP value is also very low, and some HFO do not fire, and is the potential substitute of HCFCs refrigeration agent, whipping agent and clean-out system.
At present conventional zero odp urethane pneumatogen is as shown in the following chart:
| Title | Pentamethylene | Skellysolve A | Iso-pentane | HFC-245fa | HFC-365mfc |
| Molecular formula | C 5H 10 | C 5H 10 | C 5H 10 | CF 3CH 2CHF 2 | CH 3CF 2CH 2CF 3 |
| Boiling point (DEG C) | 49 | 36 | 28 | 15 | 40 |
Liquid state (wherein HFC-245fa is gas-liquid criticality) is under above pneumatogen normal temperature, adopt conventional whipping agent premixing device and technique, the combined polyether of the premix pneumatogen of stable performance can be obtained, for the production of hard polyurethane foams.
In Fluorine containing olefine compound, anti-form-1,3,3,3-tetrafluoeopropene (HFO-1234ze) has zero odp, low-down GWP, relatively low molecular mass, low toxicity, do not fire and the feature such as lower vapor phase thermal conductivity, except as except refrigeration agent, be also suitable as the pneumatogen of hard polyurethane foams.But due to its lower boiling point (-19 DEG C), conventional premixing device and technique can not be adopted to obtain stable premix HFO-1234ze combined polyether.Therefore need the system and device developing a kind of low cost premix HFO-1234ze, can obtain easily using HFO-1234ze be independent pneumatogen or the HFO-1234ze combined polyether as one of mixture haircut agent composition.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art and problem, provides a kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol.
The technical solution of the utility model is as follows:
The system and device of premix lower boiling Fluorine containing olefine in polyether glycol of the present utility model, it increases the three-way valve that quantitatively can add pneumatogen in combined polyether production technique circulation line, in circulation line, install that to carry out premix static mixer be hydrid component additional simultaneously.
Compared with prior art, the utility model beneficial effect is:
System and device of the present utility model can low cost premix HFO-1234ze, can obtain easily using HFO-1234ze be independent pneumatogen or the HFO-1234ze combined polyether as one of mixture haircut agent composition.
Accompanying drawing explanation
Fig. 1 is the utility model system and device schematic diagram
In figure: 1 is mixed static mixer, and 2 is premix batch can, and 3 is recycle pump
Embodiment
As shown in Figure 1, the system and device of premix lower boiling Fluorine containing olefine in polyether glycol of the present utility model, it increases by one in combined polyether production technique circulation line can quantitatively add pneumatogen three-way valve, in circulation line, install that to carry out premix static mixer be hydrid component additional simultaneously.
Premix condition:
Material temperature: 15 ~ 18 DEG C; System nitrogen pressure: 0.40 ~ 0.55MPa; Cycling time: 30 ~ 45min
In premix and high pressure foaming machine operating process, maintain certain system nitrogen pressure, stop HFO-1234ze to escape from combined polyether.Adopt above improved premixing system device and processing condition, the premix of HFO-1234ze 8.5 ~ 30wt% in polyether glycol can be met.
Claims (1)
1. the system and device of a premix lower boiling Fluorine containing olefine in polyether glycol, it is characterized in that in combined polyether production technique circulation line, increase a three-way valve that quantitatively can add pneumatogen, in circulation line, install that to carry out premix static mixer be hydrid component simultaneously additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299360.6U CN204607903U (en) | 2015-05-11 | 2015-05-11 | A kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520299360.6U CN204607903U (en) | 2015-05-11 | 2015-05-11 | A kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204607903U true CN204607903U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520299360.6U Expired - Fee Related CN204607903U (en) | 2015-05-11 | 2015-05-11 | A kind of system and device of premix lower boiling Fluorine containing olefine in polyether glycol |
Country Status (1)
| Country | Link |
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| CN (1) | CN204607903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107212A (en) * | 2022-07-12 | 2022-09-27 | 长虹美菱股份有限公司 | Polyurethane step-by-step premixing system for refrigerator cabinet, control method and working procedures |
-
2015
- 2015-05-11 CN CN201520299360.6U patent/CN204607903U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107212A (en) * | 2022-07-12 | 2022-09-27 | 长虹美菱股份有限公司 | Polyurethane step-by-step premixing system for refrigerator cabinet, control method and working procedures |
| CN115107212B (en) * | 2022-07-12 | 2023-06-20 | 长虹美菱股份有限公司 | Polyurethane step-by-step premixing system for refrigerator cabinet, control method and working procedure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180507 Address after: 312037 Zhejiang province Shaoxing City Yuecheng District Fusheng town Patentee after: Shaoxing Huachuang Polyurethane Co. Ltd Address before: No. 159, dragon pan Road, Nanjing City, Nanjing, Jiangsu Patentee before: Nanjing Forestry University |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20210511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |