CN206051889U - M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants - Google Patents
M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants Download PDFInfo
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- CN206051889U CN206051889U CN201620898554.2U CN201620898554U CN206051889U CN 206051889 U CN206051889 U CN 206051889U CN 201620898554 U CN201620898554 U CN 201620898554U CN 206051889 U CN206051889 U CN 206051889U
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- Prior art keywords
- tower
- condensed
- towers
- condensed fluid
- absorbent
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- 238000009833 condensation Methods 0.000 title claims abstract description 34
- 230000005494 condensation Effects 0.000 title claims abstract description 34
- 238000007670 refining Methods 0.000 title claims abstract description 10
- 230000002745 absorbent Effects 0.000 claims abstract description 35
- 239000002250 absorbent Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 13
- 239000007792 gaseous phase Substances 0.000 claims abstract description 13
- 239000012071 phase Substances 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 11
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 238000000605 extraction Methods 0.000 claims description 13
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 46
- 238000006116 polymerization reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 3
- 229960004279 formaldehyde Drugs 0.000 description 14
- 235000019256 formaldehyde Nutrition 0.000 description 14
- 239000007788 liquid Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000005704 oxymethylene group Chemical group [H]C([H])([*:2])O[*:1] 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants, including de- M1 towers, condensed absorbent tower, condensed fluid backflash, time condensation heat exchanger and circulated sprinkling pump, the tower top of the de- M1 towers is provided with gaseous phase outlet, the gaseous phase outlet of the de- M1 towers is connected with condensed absorbent tower bottom by pipeline, the tower top of the condensed absorbent tower is provided with gaseous phase outlet and is connected with time condensation heat exchanger by pipeline, and the bottom of the condensed absorbent tower and secondary vapor condensation heat exchanger are connected with condensed fluid backflash；The condensed fluid backflash is connected with de- M1 tops of tower and condensed absorbent top of tower pipeline respectively by circulated sprinkling pump, makes liquid phase backflow spray the gas phase counter current contacting with bottom rising in de- M1 towers and condensed absorbent tower.This utility model can effectively anti-anti-avulsion M1 column overhead gaseous formaldehyde occur in condensation process polymerization so as to block condenser, reduce equipment investment and avoid equipment dredging maintenance.
Description
Technical field
This utility model belongs to chemical production technology and equipment technical field, relates generally to the refined of polymethoxy dimethyl ether
Technology.
Background technology
In polymethoxy dimethyl ether DMMn technologies of preparing, after M1 removings, the gas phase of de- M1 column overheads needs condensation, so as to
Complete subsequent technique.Containing free gaseous formaldehyde in the gas phase, dissociate gaseous formaldehyde property extremely unstable, can gather immediately to the cold
Merging is attached on the wall of contact.Carried out using shell and tube condenser more than the condensation of the gas phase at present, shell and tube condenser
In the technical process easily by gas phase in contain gaseous free oxymethylene polymerization blocking tubulation.The condensation method needs setting 2
Platform (one open one standby), equipment investment are big, and periodically need to switch heat exchanger to carry out dredging maintenance, plant running to another
Not smooth, labor intensive is huge.
The content of the invention
Goal of the invention：For above-mentioned problem and defect, this utility model is provided in a kind of DMMn refining plants
De- M1 towers vapor condensation system, can effectively anti-anti-avulsion M1 column overhead gaseous formaldehyde occur in condensation process polymerization so as to block
Condenser, reduces equipment investment and avoids heat exchanger dredging maintenance.
Technical scheme：For achieving the above object, this utility model is employed the following technical solutions：A kind of refined dresses of DMMn
M1 tower vapor condensation systems, including de- M1 towers, condensed absorbent tower, condensed fluid backflash, time condensation heat exchanger, circulation are taken off in putting
Spray pump and condensed fluid extraction pump, the tower top of the de- M1 towers are provided with gaseous phase outlet, and the gaseous phase outlet of the de- M1 towers is by pipe
Road is connected with condensed absorbent tower bottom, and the tower top of the condensed absorbent tower is provided with gaseous phase outlet and is changed with time condensation by pipeline
Hot device connection, the bottom of the condensed absorbent tower and secondary vapor condensation heat exchanger are equipped with liquid-phase outlet and are flowed back with condensed fluid
Groove connects；The condensed fluid backflash is connected with de- M1 tops of tower and condensed absorbent top of tower pipeline respectively by circulated sprinkling pump
Connect, make the liquid phase in condensed fluid backflash backflow spray the gas phase adverse current with bottom rising in de- M1 towers and condensed absorbent tower
Contact, the condensed fluid backflash are additionally provided with extraction pipe, and the condensed fluid extraction pump is located on extraction pipe.
When former shell and tube condenser is condensed to the gaseous component for taking off M1 towers, as tubulation tube wall is under the cooling of cold water
Temperature is relatively low, easily occurs to be polymerized so as to stifled when touching low temperature tube wall into the gaseous component high temperature gas formaldehyde in tubulation
Plug condenser.And this utility model directly adopt absorption tower, gas formaldehyde absorb tower bottom enter it is rear with spray and under
Condensed fluid carry out mass-and heat-transfer absorption, make gaseous formaldehyde become the polymerization that Liquid for maldehyde avoids formaldehyde, at the same PARA FORMALDEHYDE PRILLS(91,95) rise
To condensation removal effect.
Preferably, the condensed absorbent tower is packed absorber, in tower, temperature is 55～75 DEG C, so as to can ensure that liquid
Formaldehyde is completely absent polymerization situation in the operating temperature range, so as to completely avoid line clogging.
Preferably, spray equipment is equipped with the top of the de- M1 towers and condensed absorbent tower, so as to efficiently enter circulation of qi promoting
Liquid contact absorption forms Liquid for maldehyde.
Preferably, it is 45 ± 2 DEG C that the condensed fluid enters the inlet temperature of stabilizer of condensed absorbent tower spray equipment, the de- M1
The gaseous phase outlet temperature of tower is 72～78 DEG C.
Beneficial effect：Compared with prior art, condensing mode of this utility model by condensed absorbent tower, can be by gaseous state
Formaldehyde is effectively converted into Liquid for maldehyde.Liquid for maldehyde polymerization activity is well below gaseous formaldehyde and complete at normal operating temperatures
There is no polymerization situation entirely.After condensed absorbent tower absorbs, the tissue of the gas phase without formaldehyde passes through time condensation heat exchanger again
Condense and reclaim.The time condensation heat exchanger can reach requirement using common plate type heat exchanger, whole so as to be greatly lowered
The investment of individual condenser system, and do not need regular heat exchanger to carry out dredging maintenance.
Description of the drawings
Fig. 1 is the structural representation of de- M1 tower vapor condensation systems in DMMn refining plants described in the utility model.
Wherein, M1 towers 1, condensed absorbent tower 2, condensed fluid backflash 3, time condensation heat exchanger 4, circulated sprinkling pump 5, cold are taken off
Lime set produces pump 6.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, further elucidate this utility model, it should be understood that these embodiments are only used for
Illustrate this utility model rather than limit scope of the present utility model, after this utility model has been read, art technology
Modification of the personnel to the various equivalent form of values of the present utility model falls within the application claims limited range.
As shown in figure 1, M1 tower vapor condensation systems in a kind of DMMn refining plants of this utility model, are taken off, including de- M1 towers,
Condensed absorbent tower, condensed fluid backflash, time condensation heat exchanger, circulated sprinkling pump and condensed fluid extraction pump, the de- M1 towers
Tower top is provided with gaseous phase outlet, and the gaseous phase outlet of the de- M1 towers is connected with condensed absorbent tower bottom by pipeline, and the condensation is inhaled
Receiving tower adopts packed tower, and tower top to be provided with gaseous phase outlet and connect with time condensation heat exchanger by pipeline, the condensed absorbent
The bottom of tower and secondary vapor condensation heat exchanger are equipped with liquid-phase outlet and are connected with condensed fluid backflash；The condensed fluid backflow
Groove is connected with de- M1 tops of tower and condensed absorbent top of tower pipeline respectively by circulated sprinkling pump, makes the liquid in condensed fluid backflash
Backflow spray the gas phase counter current contacting with bottom rising in de- M1 towers and condensed absorbent tower, the condensed fluid backflash is also
Extraction pipe is provided with, the condensed fluid extraction pump is located on extraction pipe.
De- 1 tower top of M1 towers contains the gaseous component of formaldehyde, M1, enters from 2 bottom of condensed absorbent tower, and circulated sprinkling pump 5 will
Condensed fluid is circulated in proportion and is sprayed at the top of M1 towers 1, condensed absorbent tower 2 back off.So containing formaldehyde, the gaseous component of M1 and cold
Lime set carries out reverse mass transfer contact absorption in condensed absorbent tower 2, and by the condensed fluid of low temperature and higher temperatures containing formaldehyde, M1
The mixing contact of gaseous component reduces the temperature of gaseous component and reaches cooling purpose.Liquid phase component through absorbing enters condensed fluid
Backflash 3, the gaseous component through absorbing now have not contained gaseous formaldehyde, and the gas phase enters two from 2 top of condensed absorbent tower
Secondary condensing heat exchanger 4 is condensed, and condensed fluid enters condensed fluid backflash 3.A material part in condensed fluid backflash 3 passes through
Circulated sprinkling pump 5 is circulated spray, and another part is by condensed fluid extraction 6 extraction system of pump at next step operation
Reason.
Claims (4)
1. M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants, it is characterised in that：Including de- M1 towers, condensed absorbent tower,
Condensed fluid backflash, time condensation heat exchanger, circulated sprinkling pump and condensed fluid extraction pump, the tower top of the de- M1 towers are provided with gas phase
Outlet, the gaseous phase outlet of the de- M1 towers are connected with condensed absorbent tower bottom by pipeline, and the tower top of the condensed absorbent tower sets
There is gaseous phase outlet and connected with time condensation heat exchanger by pipeline, the bottom of the condensed absorbent tower and secondary vapor condensation are changed
Hot device is equipped with liquid-phase outlet and is connected with condensed fluid backflash；The condensed fluid backflash by circulated sprinkling pump respectively with it is de-
M1 tops of tower and the connection of condensed absorbent top of tower pipeline, make the liquid phase in condensed fluid backflash in de- M1 towers and condensed absorbent tower
Backflow spray the gas phase counter current contacting risen with bottom, the condensed fluid backflash are additionally provided with extraction pipe, and the condensed fluid is adopted
Go out pump to be located on extraction pipe.
2. M1 tower vapor condensation systems are taken off in DMMn refining plants according to claim 1, it is characterised in that：The condensation is inhaled
Receipts tower is packed absorber, and in tower, temperature is 55～75 DEG C.
3. M1 tower vapor condensation systems are taken off in DMMn refining plants according to claim 1, it is characterised in that：The de- M1 towers
Spray equipment is equipped with the top of condensed absorbent tower.
4. M1 tower vapor condensation systems are taken off in DMMn refining plants according to claim 1, it is characterised in that：The condensed fluid
Inlet temperature of stabilizer into condensed absorbent tower spray equipment is 45 ± 2 DEG C, and the gaseous phase outlet temperature of the de- M1 towers is 72～78 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620898554.2U CN206051889U (en) | 2016-08-17 | 2016-08-17 | M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620898554.2U CN206051889U (en) | 2016-08-17 | 2016-08-17 | M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206051889U true CN206051889U (en) | 2017-03-29 |
Family
ID=58381196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620898554.2U Active CN206051889U (en) | 2016-08-17 | 2016-08-17 | M1 tower vapor condensation systems are taken off in a kind of DMMn refining plants |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206051889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699521A (en) * | 2016-08-17 | 2017-05-24 | 江苏凯茂石化科技有限公司 | M1 removal tower gas phase condensation system in DMMn refining device |
| CN106966875A (en) * | 2017-03-31 | 2017-07-21 | 四川达兴能源股份有限公司 | Polymethoxy dibutyl ethers distillation system anti-block apparatus and process for purification |
-
2016
- 2016-08-17 CN CN201620898554.2U patent/CN206051889U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699521A (en) * | 2016-08-17 | 2017-05-24 | 江苏凯茂石化科技有限公司 | M1 removal tower gas phase condensation system in DMMn refining device |
| CN106966875A (en) * | 2017-03-31 | 2017-07-21 | 四川达兴能源股份有限公司 | Polymethoxy dibutyl ethers distillation system anti-block apparatus and process for purification |
| CN106966875B (en) * | 2017-03-31 | 2020-09-08 | 四川达兴能源股份有限公司 | Anti-blocking device of polymethoxy dibutyl ether rectification system and refining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190409 Address after: 214000 Xiuxi Road, Binhu District, Wuxi City, Jiangsu Province, 58-50 Patentee after: Wuxi Yimao International Trade Co., Ltd. Address before: 214061 Building 50, Henghua Science Park, 58 Xiuxi Road, Binhu District, Wuxi City, Jiangsu Province Patentee before: Jiangsu Kaimao Chemical Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |