CN209809556U - Energy-saving efficient methanol rectifying tower - Google Patents
Energy-saving efficient methanol rectifying tower Download PDFInfo
- Publication number
- CN209809556U CN209809556U CN201920382017.6U CN201920382017U CN209809556U CN 209809556 U CN209809556 U CN 209809556U CN 201920382017 U CN201920382017 U CN 201920382017U CN 209809556 U CN209809556 U CN 209809556U
- Authority
- CN
- China
- Prior art keywords
- tower
- tower body
- energy
- inlet
- saving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 54
- 238000000926 separation method Methods 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides an energy-conserving high-efficient methyl alcohol rectifying column, comprising a tower body, be equipped with raw materials inlet, top of the tower steam outlet and the export of tower cauldron raffinate on the tower body, the raw materials inlet is established on tower body upper portion, its characterized in that: the tower body bottom is equipped with raffinate recirculation pipeline, is equipped with the vacuum pump on the pipeline, the second feed inlet of tower body is connected to the other end of raffinate recirculation pipeline, the second feed inlet is located raw materials inlet below, the feed liquor pipe of raw materials inlet extends to tower body center department, and is equipped with one on the feed liquor pipe and can dismantle feed liquor pipe distribution box. Due to the adoption of the technical scheme, the utility model discloses a methanol rectifying tower has simple structure, and the heating is effectual, characteristics such as methyl alcohol rate of recovery height.
Description
Technical Field
The utility model belongs to the chemical industry equipment field especially relates to an energy-conserving high-efficient methyl alcohol rectifying column.
Background
The currently used methanol rectifying tower has the following two defects: firstly, a reboiling heater is generally arranged in the middle of a tower body, so that the liquid at the bottom of a tower kettle below the heater is poor in heating effect, a heating dead angle exists, methanol contained in the liquid at the bottom cannot be heated to a boiling state again, if the liquid at the bottom is emptied, a large amount of methanol is wasted, the consumption of the methanol is increased, and the production cost is increased; secondly, the evaporated methanol can carry out part of solid impurities in the rising process, so that the recovered methanol contains trace solid impurities.
Therefore, the existing rectifying tower needs to be improved to become a methanol rectifying tower which is energy-saving, efficient and high in rectifying purity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at carrying out appropriate improvement to current rectifying column, provide an energy-conserving high-efficient methyl alcohol rectifying column.
The technical scheme of the utility model is that: the utility model provides an energy-conserving high-efficient methyl alcohol rectifying column, includes the tower body, be equipped with raw materials inlet, top of the tower steam outlet and the export of tower cauldron raffinate on the tower body, the raw materials inlet is established on tower body upper portion, the tower body bottom is equipped with raffinate recirculation pipeline, is equipped with the vacuum pump on the pipeline, the second feed inlet of tower body is connected to the other end of raffinate recirculation pipeline, the second feed inlet is located raw materials inlet below, the feed liquor pipe of raw materials inlet extends to tower body center department, and is equipped with one on the feed liquor pipe and can dismantle feed liquor pipe distribution box.
Furthermore, a dust remover is arranged between the tower top steam outlet and the condenser, and a dust separation plate in the dust remover is of a net structure.
Furthermore, the tower body tower is of a multi-section structure, and the second feed inlet is located at the second section of the tower body.
Furthermore, the liquid inlet pipe distribution box comprises a connection plate, a second-stage liquid separation plate and a third-stage liquid separation plate, the connection plate comprises a connection pipe and a first-stage liquid separation plate which is fixed below the connection pipe and communicated with the connection pipe, the liquid separation plates and the first-stage liquid separation plate are all arranged concentrically and are downwards distributed in a step shape, three liquid separation plates are all of flat cylindrical structures with hollow interiors, and a bottom plate of each liquid separation plate is a filter plate; overflow holes are uniformly formed in the side wall of the primary liquid separating disc.
Furthermore, the connecting disc and the second-level and third-level liquid separating discs are of detachable structures.
Furthermore, the filter plate comprises a circular plate, a plurality of liquid leakage channels which are arranged in parallel are arranged on the circular plate, and cylindrical rolling shafts are arranged in the channels.
Furthermore, the filter plate comprises a circular plate, a plurality of through holes are uniformly formed in the circular plate, and spherical balls are arranged in the through holes.
Further, the filter plate is a screen.
Further, the filter plate structures of two adjacent liquid separation discs are different.
The utility model has the advantages and positive effects that:
due to the adoption of the technical scheme, the utility model discloses a methanol rectification tower newly increases a recirculation pipeline in current rectifying column equipment bottom, recycles tower cauldron hydrops, can not cause the waste of methyl alcohol, distributes the box at the feed liquor mouth of pipe installation simultaneously, increases cloth liquid and rectification effect, has simple structure, and it is effectual to heat, characteristics such as methyl alcohol rate of recovery height.
Drawings
FIG. 1 is a schematic diagram of a methanol rectifying tower according to the present invention;
FIG. 2 is a schematic structural view of a liquid inlet pipe distribution box inside a rectifying tower of the present invention;
FIG. 3 is a structural diagram of a filter plate in the distribution box of the liquid inlet pipe of the present invention;
fig. 4 is another filter plate structure in the liquid inlet pipe distribution box of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, the utility model discloses an energy-conserving high-efficient methyl alcohol rectifying column, including tower body 1, 1 is equipped with raw materials inlet, top of the tower steam outlet and the export of tower cauldron raffinate on the tower body, the raw materials inlet is established on tower body upper portion, the tower body bottom is equipped with raffinate recirculation pipeline 5, is equipped with the vacuum pump on the pipeline, the second feed inlet of tower body 1 is connected to raffinate recirculation pipeline 5's the other end, the second feed inlet is located raw materials inlet below, the feed liquor pipe of raw materials inlet extends to tower body center department, and is equipped with one on the feed liquor pipe and can dismantle feed liquor pipe distribution box 8.
A dust remover 6 is arranged between the tower top steam outlet and the condenser, and a dust separation plate in the dust remover is of a net structure and can filter foams carried in the methanol steam; preferably, the tower body tower is of a multi-section structure, and the second feed inlet is located at the second section of the tower body.
As shown in fig. 2 to 4, the liquid inlet pipe distribution box 8 includes a connection plate, a second-level liquid distribution plate 85 and a third-level liquid distribution plate 86, the connection plate and the liquid inlet pipe form a detachable connection mode through a connection pipe 82, specifically, the liquid inlet pipe is inserted into the connection pipe 2 and then fixed through an annular fixing piece 88, and in order to ensure the sealing effect of the connection position, an annular sealing ring 89 is further arranged between the liquid inlet pipe and the connection pipe 82; the connecting disc comprises a connecting pipe 82 and a first-stage liquid separating disc 83 which is fixed below the connecting pipe 82 and communicated with the connecting pipe, the second-stage liquid separating disc 85 and a third-stage liquid separating disc 86 are both arranged concentrically with the first-stage liquid separating disc 83 of the connecting disc and are distributed downwards from the connecting disc in a step shape, a plurality of liquid leakage channels which are arranged in parallel are arranged on a filter plate of the first-stage liquid separating disc 83, cylindrical rolling shafts 84 are arranged in the channels, overflows 831 are uniformly formed in the side wall of each channel, the filter plate of the second-stage liquid separating disc 85 is identical in structure with the filter plate of the first-stage liquid separating disc 83, but in order to guarantee the liquid separating effect, the direction of the cylindrical rolling shafts on the filter plate of the second-; the filter plate of the third liquid-separating disc 86 is a screen 87.
The working process of the utility model is as follows:
crude methanol to be rectified enters a tower body 1 through a liquid inlet pipeline 2, primary liquid distribution and filtration are carried out through a liquid inlet pipe distribution box 8 on a liquid inlet pipe, the crude methanol enters a redistributor and then is uniformly scattered in the tower body for rectification, the rectified steam flows out through a steam channel 3 on the top of the tower and is condensed after dust removal or foam entrainment through a dust remover 6, the condensed gas is collected, and the liquid returns to the tower through a condensate return pipe 4 for rectification; and part of distillate at the bottom of the rectifying tower enters a rectifying tower for rectification after passing through a reboiler 7, and residual liquid at the bottom of the tower body is pumped into the rectifying tower for rectification again through a residual liquid recycling pipeline 5. The process can effectively improve the recovery efficiency and the effective recovery rate of the methanol and reduce the energy consumption.
The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (9)
1. The utility model provides an energy-conserving high-efficient methyl alcohol rectifying column, includes the tower body, be equipped with raw materials inlet, top of the tower steam outlet and the export of tower cauldron raffinate on the tower body, the raw materials inlet is established on tower body upper portion, its characterized in that: the tower body bottom is equipped with raffinate recirculation pipeline, is equipped with the vacuum pump on the pipeline, the second feed inlet of tower body is connected to the other end of raffinate recirculation pipeline, the second feed inlet is located raw materials inlet below, the feed liquor pipe of raw materials inlet extends to tower body center department, and is equipped with one on the feed liquor pipe and can dismantle feed liquor pipe distribution box.
2. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 1, characterized in that: and a dust separation plate in the dust remover is of a net structure.
3. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 1 or 2, wherein: the tower body is of a multi-section structure, and the second feed inlet is located at the second section of the tower body.
4. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 1, characterized in that: the liquid inlet pipe distribution box comprises a connecting disc, a second-stage liquid separation disc and a third-stage liquid separation disc, the connecting disc comprises a connecting pipe and a first-stage liquid separation disc which is fixed below the connecting pipe and communicated with the connecting pipe, the liquid separation discs and the first-stage liquid separation disc are concentrically arranged and are downwards distributed in a step shape, three liquid separation discs are of a flat cylindrical structure with a hollow interior, and a bottom plate of each liquid separation disc is a filter plate; overflow holes are uniformly formed in the side wall of the primary liquid separating disc.
5. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 4, wherein: and detachable structures are arranged between the connecting disc and the second-level liquid separating disc and the third-level liquid separating disc.
6. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 4, wherein: the filter plate comprises a circular plate, a plurality of liquid leakage channels which are arranged in parallel are arranged on the circular plate, and cylindrical rolling shafts are arranged in the channels.
7. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 4, wherein: the filter plate comprises a circular plate, a plurality of through holes are uniformly formed in the circular plate, and spherical balls are arranged in the through holes.
8. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 4, wherein: the filter plate is a screen mesh.
9. The energy-saving and high-efficiency methanol rectifying tower as claimed in claim 4, wherein: the filter plate structures of two adjacent liquid separation discs are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382017.6U CN209809556U (en) | 2019-03-25 | 2019-03-25 | Energy-saving efficient methanol rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382017.6U CN209809556U (en) | 2019-03-25 | 2019-03-25 | Energy-saving efficient methanol rectifying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209809556U true CN209809556U (en) | 2019-12-20 |
Family
ID=68876912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920382017.6U Expired - Fee Related CN209809556U (en) | 2019-03-25 | 2019-03-25 | Energy-saving efficient methanol rectifying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209809556U (en) |
-
2019
- 2019-03-25 CN CN201920382017.6U patent/CN209809556U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 |