CN206604215U - A kind of propylene evaporation equipment - Google Patents
A kind of propylene evaporation equipment Download PDFInfo
- Publication number
- CN206604215U CN206604215U CN201720271996.9U CN201720271996U CN206604215U CN 206604215 U CN206604215 U CN 206604215U CN 201720271996 U CN201720271996 U CN 201720271996U CN 206604215 U CN206604215 U CN 206604215U
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- propylene
- shell
- water
- heat exchanger
- rectifying column
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Abstract
The utility model is related to a kind of propylene evaporation equipment, including shell-and-tube evaporator, the shell-and-tube evaporator includes body and housing, shell side is provided between the body and housing, the body two ends are connected to rectifying column and absorption tower, shell side two ends are respectively arranged with propylene liguid entrance and propylene steam outlet, aldehyde water sour water heat exchanger is provided between the rectifying column and shell-and-tube evaporator, freezing water- to-water heat exchanger is provided between the shell-and-tube evaporator and absorption tower, between the aldehyde water sour water heat exchanger and rectifying column, product pump is provided between aldehyde water sour water heat exchanger and absorption tower, the equipment solves evaporator and freezed to death problem, assemble situation in the absence of a large amount of propylene, security is higher, thermal source is used as with production technology sour water waste heat, reduce energy demand, energy-conserving and environment-protective.
Description
Technical field
The utility model is related to propylene gasification apparatus field, more particularly to a kind of propylene evaporation equipment.
Background technology
Because propylene contains saturation moisture content, about 700ppm.The propylene evaporator of existing general factory is autoclave
Evaporator, in kettle built with inner coil pipe, interior coil pipe is hot water, gives propylene evaporation to provide thermal source, the boiling point of propylene is -48 DEG C,
In propylene evaporation process, heat is taken away, temperature decrease, trace water easily freezes and freezed to death on inner pipe, production must be interrupted and solved
Jelly processing, frequent parking maintenance, accident risk coefficient is higher.There are a large amount of propylene in autoclave evaporator simultaneously, exist certain
Risk of explosion, makes workshop there is potential security risk.The hot water in coil pipe needs extra firing equipment to be added simultaneously
Heat, the consumption energy is big, cost is high.
Utility model content
The purpose of this utility model is to overcome current autoclave evaporator when evaporating propylene, and trace water is easily in inner tube
Upper icing is freezed to death, and parking maintenance causes there are a large amount of propylene in low production efficiency, autoclave evaporator, the problem of danger coefficient is high,
And a kind of propylene evaporation equipment is provided, the propylene evaporation equipment solve evaporator freeze to death problem, in the absence of a large amount of propylene assemble
Situation, security is higher, with production technology sour water waste heat as thermal source, reduces energy demand, energy-conserving and environment-protective.
What the utility model was realized in：A kind of propylene evaporation equipment, including shell-and-tube evaporator, the shell-and-tube steam
Sending out device includes body and housing, shell side is provided between the body and housing, the body two ends are connected to rectifying column
And absorption tower, shell side two ends are respectively arranged with propylene liguid entrance and propylene steam outlet, the rectifying column and shell-and-tube evaporation
Aldehyde water sour water heat exchanger is provided between device, freezing water- to-water heat exchanger, institute are provided between the shell-and-tube evaporator and absorption tower
State between aldehyde water sour water heat exchanger and rectifying column, be provided with product pump between aldehyde water sour water heat exchanger and absorption tower.
A kind of above-mentioned propylene evaporation equipment, body one end and the rectifying column bottom of the shell-and-tube evaporator pass through pipeline
Connection, the other end and absorption tower upper end are connected by pipeline.
A kind of above-mentioned propylene evaporation equipment, the absorption tower bottom is connected by pipeline with rectifying column upper end.
The utility model has the following advantages that：The utility model is improved propylene evaporator, uses shell-and-tube
Evaporator, the sour water discharged by using rectifying column reduces energy demand as thermal source, after heat exchange, sour water temperature 45 ~
At 65 degree, into propylene evaporator, providing temperature in thermal source, whole process to propylene evaporation all more than 0 degree, makes micro- in propylene
Amount moisture content does not reach freezing point, solves propylene and evaporates problem of freezing to death, it is not necessary to often parking defrosting processing, improves production and imitates
Rate；And in shell-and-tube evaporator, the gas phase after propylene evaporation is only in shell fluid flow, and every pipe shell side dischargeable capacity is very
It is small, and flowed with the evaporation of propylene liguid, there are a large amount of propylene aggregation situations, safety coefficient is higher.The propylene steams simultaneously
The remaining temperature of technique sour water is taken away in hair equipment utilization propylene evaporation, enters after reducing the temperature of technique sour water, then the heat exchange of chilled water
Absorption tower, also reduces the load of freezing unit, saves electric energy.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
In figure：1- absorption towers；2- shell-and-tube evaporators；3- aldehyde water sour water heat exchangers；4- product pumps；5- rectifying columns；6- is cold
Freeze water- to-water heat exchanger；7- propylene liguid entrances；8- propylene steams are exported.
Embodiment
With reference to specific embodiment, the utility model will be further described.
Embodiment 1：A kind of propylene evaporation equipment, as shown in figure 1, including shell-and-tube evaporator 2, the shell-and-tube evaporator
Including body and housing, it is heating source in body, shell side is provided between the body and housing, shell side two ends are respectively arranged with
Propylene liguid entrance 7 and propylene steam outlet 8, propylene enters from propylene liguid entrance, is flowed in shell side, the liquid in body
Thermal source is provided to propylene evaporation, propylene evaporation is exported from propylene steam after heating discharges；The body two of shell-and-tube evaporator
End is connected to rectifying column 5 and absorption tower 1, and aldehyde water sour water heat exchanger 3 is provided between rectifying column and shell-and-tube evaporator, manages
Body one end is connected with the bottom of rectifying column 5 by pipeline, the sour water of rectifying column discharge, after the heat exchange of aldehyde water sour water heat exchanger 3, temperature
Degree enters shell-and-tube evaporator 2 at 45 degree or so, to propylene evaporation offer thermal source, in whole process temperature all more than 0 degree,
Trace water in propylene is not reached freezing point, solve propylene evaporation and freeze to death problem, it is to avoid frequent parking defrosting processing, improve
Evaporation efficiency and production efficiency, reduce the loss caused by parking of freezing to death.Meanwhile, in shell-and-tube evaporator, propylene steams
Gas phase after hair, in the absence of a large amount of aggregation situations, reduces security risk present in cold and hot heat transfer process only in shell fluid flow, will
Risk is preferably minimized.The body other end of shell-and-tube evaporator 2 is connected with the upper end of absorption tower 1 by pipeline, shell-and-tube evaporator
Freezing water- to-water heat exchanger is provided between absorption tower, temperature is about 95 degree when technique sour water goes out rectifying column, is exchanged heat through sour water aldehyde water
After device, temperature is at 65 degree or so, after propylene evaporator, and temperature is after 45 degree or so, then chilled water- to-water heat exchanger, technique acid
Coolant-temperature gage is down to less than 8 degree, is used as water is absorbed.The load of freezing unit is reduced, electric energy has been saved.Aldehyde water sour water heat exchanger
Product pump 4 is provided between 3 and rectifying column 5, between aldehyde water sour water heat exchanger 3 and absorption tower 1, for pump to enter respectively by material
In aldehyde water sour water heat exchanger, the bottom of absorption tower 1 is connected by pipeline with the upper end of rectifying column 5.Water is absorbed in absorption tower 1 by gaseous state third
Olefine aldehydr, which is converted into after absorbing in liquid, technique, is referred to as aldehyde water, through being pumped into rectifying in rectifying column.Because aldehyde coolant-temperature gage is relatively low,
Heating needs a large amount of heat energy in enter rectifying, but because from rectifying column come out containing sour process water, be referred to as sour water in technique, temperature compared with
Height, propylene evaporator is entered after the aldehyde water heat exchange with entering rectifying column again.So heat energy is set to be fully utilized.
Operation principle：
The sour water temperature that rectifying column 5 comes out is about 90-100 degree, delivers into aldehyde water sour water heat exchanger 3 through product pump 4, changes
Sour water temperature after heat is about 30-65 degree, into propylene shell-and-tube evaporator 2.Propylene is evaporated, the acid come out from evaporator
Coolant-temperature gage is about 15-45 degree, and into freezing water- to-water heat exchanger 6, the sour water temperature after heat exchange must enter in absorption tower 1 below 8 degree
Used as water is absorbed.Propylene is entered in shell-and-tube evaporator 2 by pipeline to entrance 7, after sour water heat exchange, is flowed from outlet 8
Go out.The evaporation of whole system propylene is steady, simple to operate.
Claims (3)
1. a kind of propylene evaporation equipment, it is characterised in that：Including shell-and-tube evaporator, the shell-and-tube evaporator include body and
Housing, is provided with shell side between the body and housing, the body two ends are connected to rectifying column and absorption tower, shell side two
End is respectively arranged with propylene liguid entrance and propylene steam outlet, and aldehyde water is provided between the rectifying column and shell-and-tube evaporator
Sour water heat exchanger, is provided with freezing water- to-water heat exchanger, the aldehyde water sour water heat exchanger between the shell-and-tube evaporator and absorption tower
Product pump is provided between rectifying column, between aldehyde water sour water heat exchanger and absorption tower.
2. a kind of propylene evaporation equipment according to claim 1, it is characterised in that：The body one of the shell-and-tube evaporator
End is connected with rectifying column bottom by pipeline, the other end and absorption tower upper end are connected by pipeline.
3. a kind of propylene evaporation equipment according to claim 1, it is characterised in that：The absorption tower bottom by pipeline with
Rectifying column upper end is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271996.9U CN206604215U (en) | 2017-03-20 | 2017-03-20 | A kind of propylene evaporation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271996.9U CN206604215U (en) | 2017-03-20 | 2017-03-20 | A kind of propylene evaporation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206604215U true CN206604215U (en) | 2017-11-03 |
Family
ID=60166175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720271996.9U Active CN206604215U (en) | 2017-03-20 | 2017-03-20 | A kind of propylene evaporation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206604215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001359A (en) * | 2019-12-30 | 2020-04-14 | 宁夏荆洪生物科技有限公司 | Acrolein tail gas treatment system |
-
2017
- 2017-03-20 CN CN201720271996.9U patent/CN206604215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001359A (en) * | 2019-12-30 | 2020-04-14 | 宁夏荆洪生物科技有限公司 | Acrolein tail gas treatment system |
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