CN204910838U - Falling film evaporator device of ester -interchange method production propylene glycol - Google Patents
Falling film evaporator device of ester -interchange method production propylene glycol Download PDFInfo
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- CN204910838U CN204910838U CN201520520569.0U CN201520520569U CN204910838U CN 204910838 U CN204910838 U CN 204910838U CN 201520520569 U CN201520520569 U CN 201520520569U CN 204910838 U CN204910838 U CN 204910838U
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- film evaporator
- downward film
- falling film
- heater
- pipeline
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Abstract
The utility model relates to a falling film evaporator device of ester -interchange method production propylene glycol. Its technical scheme is: including the falling film evaporator charge pump, the falling film evaporator heater, the falling film evaporator separator, the falling film evaporator discharging pump, a filte, the rectifying column, the distributor, the heat exchange tube, the falling film evaporator charge pump passes through the one end of pipeline connection falling film evaporator heater, the falling film evaporator separator is connected to the other end of falling film evaporator heater, the falling film evaporator separator passes through pipeline connection falling film evaporator circulation discharging pump, falling film evaporator circulation discharging pump passes through the pipeline connection filter, the filter passes through the pipeline connection rectifying column, the upper portion of falling film evaporator heater is equipped with the distributor, the heat exchange tube is connected to the distributor, the beneficial effects of the utility model are that: the utility model discloses a simple structure, low cost, the jam problem of rectifying column and pipeline has been solved to the effectual carbonate of having got rid of in the propylene glycol production.
Description
Technical field
The utility model relates to a kind of desalter of propane diols, and particularly a kind of ester-interchange method produces the falling film type evaporator device of propane diols.
Background technology
Produce at ester-interchange method in the process of propane diols, catalyst used has been stayed in propane diols, and we adopt water and carbon dioxide to convert it into carbonate usually, after crystallization, are leached by carbonate crystallization by filter.But in order to remove catalyst completely in original technique, add excessive water and carbon dioxide.Although catalytic conversion is complete, because the existence of excessive water, causes a large amount of dissolves carbonate wherein, follow material and enter rectifying column, separate out in rectifying column, cause the blocking of pipeline and filler.For this problem, some producers set up a dehydrating tower to remove wherein excessive water specially, but so not only cost is higher, and the cleaning difficulty of tower is larger.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of ester-interchange method to produce the falling film type evaporator device of propane diols.
Its technical scheme is: comprise downward film evaporator feed pump, downward film evaporator heater, downward film evaporator separator, downward film evaporator discharging pump, filter, rectifying column, distributor, heat exchanger tube, downward film evaporator feed pump is connected with by pipeline, downward film evaporator comprises downward film evaporator heater and downward film evaporator separator, downward film evaporator feed pump connects one end of downward film evaporator heater by pipeline, the other end of downward film evaporator heater connects downward film evaporator separator, downward film evaporator separator connects downward film evaporator circulation discharging pump by pipeline, downward film evaporator circulation discharging pump connects filter by pipeline, filter connects rectifying column by pipeline, downward film evaporator heater comprises distributor and heat exchanger tube, the top of downward film evaporator heater is provided with distributor, distributor connects heat exchanger tube.
Screw thread stirring rod is provided with in above-mentioned heat exchanger tube.
The beneficial effects of the utility model are: this utility model structure is simple, with low cost, effectively eliminate the carbonate in propane diols production, solve the blockage problem of rectifying column and pipeline.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of the utility model downward film evaporator heater;
In upper figure: downward film evaporator feed pump 1, downward film evaporator heater 2, downward film evaporator separator 3, downward film evaporator discharging pump 4, filter 5, rectifying column 6, distributor 7, heat exchanger tube 8.
Detailed description of the invention
With reference to accompanying drawing 1-2, the utility model will be further described: the utility model comprises downward film evaporator feed pump 1, downward film evaporator heater 2, downward film evaporator separator 3, downward film evaporator discharging pump 4, filter 5, rectifying column 6, distributor 7, heat exchanger tube 8, downward film evaporator feed pump 1 is connected with by pipeline, downward film evaporator comprises downward film evaporator heater 2 and downward film evaporator separator 3, downward film evaporator feed pump 1 connects one end 2 of downward film evaporator heater by pipeline, the other end of downward film evaporator heater 2 connects downward film evaporator separator 3, downward film evaporator separator 3 connects downward film evaporator circulation discharging pump 4 by pipeline, downward film evaporator circulation discharging pump 4 connects filter 5 by pipeline, filter 5 connects rectifying column 6 by pipeline, downward film evaporator heater 2 comprises distributor 7 and heat exchanger tube 8, the top of downward film evaporator heater 2 is provided with distributor 7, distributor 7 connects heat exchanger tube 2, heat exchanger tube 2 is high-quality stainless steel.
Wherein, be provided with screw thread stirring rod in heat exchanger tube 2, can rotate under fluid impact, prevent blocking, downward film evaporator circulation discharging pump by Matter Transfer heating for multiple times in separator, can improve desalination effect.
When the utility model uses, material is squeezed into downward film evaporator heater by pipeline by downward film evaporator feed pump, material is evenly distributed by distributor on downward film evaporator heater top, then material enters the heat exchanger tube that is equipped with screw thread stirring rod and carries out heat convection with the conduction oil walking shell side, material after heating enters into downward film evaporator separator, in downward film evaporator separator, water vapor and material realize being separated, water vapour extraction from downward film evaporator separator, enters into rectifying column.The carbonate crystallization of leftover materials and precipitation then enters after downward film evaporator circulation discharging pump has been filter, and carbonate crystal leaches by filter, and the material after filtration then enters into rectifying column and carries out rectification and purification.
The above is only preferred embodiment of the present utility model, and any those of ordinary skill in the art all may utilize the technical scheme of above-mentioned elaboration to the utility model correct or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that the utility model is claimed.
Claims (2)
1. the falling film type evaporator device of an ester-interchange method production propane diols, it is characterized in that: comprise downward film evaporator feed pump (1), downward film evaporator heater (2), downward film evaporator separator (3), downward film evaporator discharging pump (4), filter (5), rectifying column (6), distributor (7), heat exchanger tube (8), downward film evaporator feed pump (1) is connected with by pipeline, downward film evaporator comprises downward film evaporator heater (2) and downward film evaporator separator (3), downward film evaporator feed pump (1) connects one end (2) of downward film evaporator heater by pipeline, the other end of downward film evaporator heater (2) connects downward film evaporator separator (3), downward film evaporator separator (3) connects downward film evaporator circulation discharging pump (4) by pipeline, downward film evaporator circulation discharging pump (4) connects filter (5) by pipeline, filter (5) connects rectifying column (6) by pipeline, downward film evaporator heater (2) comprises distributor (7) and heat exchanger tube (8), the top of downward film evaporator heater (2) is provided with distributor (7), distributor (7) connects heat exchanger tube (2).
2. a kind of ester-interchange method according to claim 1 produces the falling film type evaporator device of propane diols, it is characterized in that: heat exchanger tube is provided with screw thread stirring rod in (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520569.0U CN204910838U (en) | 2015-07-17 | 2015-07-17 | Falling film evaporator device of ester -interchange method production propylene glycol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520520569.0U CN204910838U (en) | 2015-07-17 | 2015-07-17 | Falling film evaporator device of ester -interchange method production propylene glycol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204910838U true CN204910838U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520520569.0U Active CN204910838U (en) | 2015-07-17 | 2015-07-17 | Falling film evaporator device of ester -interchange method production propylene glycol |
Country Status (1)
| Country | Link |
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| CN (1) | CN204910838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006839A (en) * | 2016-07-25 | 2016-10-12 | 华南农业大学 | Kitchen waste separating device and kitchen waste separating method |
| CN108002983A (en) * | 2017-12-06 | 2018-05-08 | 山东德普化工科技有限公司 | A kind of process for separating and purifying for producing propane diols during dimethyl carbonate |
-
2015
- 2015-07-17 CN CN201520520569.0U patent/CN204910838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106006839A (en) * | 2016-07-25 | 2016-10-12 | 华南农业大学 | Kitchen waste separating device and kitchen waste separating method |
| CN108002983A (en) * | 2017-12-06 | 2018-05-08 | 山东德普化工科技有限公司 | A kind of process for separating and purifying for producing propane diols during dimethyl carbonate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee after: Shenghua New Material Group Co.,Ltd. Address before: 257000 No. 489, Beier Road, Dongying District, Dongying City, Shandong Province Patentee before: SHANDONG SHIDA SHENGHUA CHEMICAL GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address |