CN219983939U - Diethylene glycol continuous rectifying tower - Google Patents
Diethylene glycol continuous rectifying tower Download PDFInfo
- Publication number
- CN219983939U CN219983939U CN202321005458.7U CN202321005458U CN219983939U CN 219983939 U CN219983939 U CN 219983939U CN 202321005458 U CN202321005458 U CN 202321005458U CN 219983939 U CN219983939 U CN 219983939U
- Authority
- CN
- China
- Prior art keywords
- tower
- diethylene glycol
- section
- light component
- rectifying
- 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.)
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- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000005065 mining Methods 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a diethylene glycol continuous rectifying tower which comprises a light component removing tower, a rectifying section and a tower top section, wherein the rectifying section is arranged in the middle of the light component removing tower, and the tower top section is arranged at the top of the rectifying section. The diethylene glycol continuous rectifying tower has the advantages of continuous process, automatic control, low water content, stable product quality, energy conservation, consumption reduction and environmental protection.
Description
Technical Field
The utility model relates to the technical field of diethylene glycol production, in particular to a diethylene glycol continuous rectifying tower.
Background
The prior art for producing diethylene glycol has the following disadvantages: intermittent production is adopted, the yield is low, the product quality is poor, the energy consumption is high, and the large-scale production cannot be realized. The diethylene glycol contains a small amount of sodium chloride, which also affects the continuous rectification. And common companies have no design experience, and can not solve the problem of salt content in continuous rectification.
Disclosure of Invention
The utility model aims to provide a diethylene glycol continuous rectifying tower to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a diethylene glycol continuous rectifying column, includes light component removal tower, rectifying section and top of the tower section, the rectifying section sets up the middle part at the light component removal tower, the top of the tower section sets up at the top of rectifying section.
Preferably, the height of tower packing in the rectifying section is 10-12 m, and the stripping section is 10-12 m.
Preferably, a discharge hole is formed in the bottom of the side face of the light component removal tower, and a discharge pipeline is arranged at the position of the discharge hole.
Preferably, a reflux port is arranged on the side face of the tower top section, and a reflux pipeline is arranged on the side face of the tower top section.
Preferably, a condensing and discharging pipe is arranged at the top of the tower top section.
Preferably, a mining outlet is arranged at the upper part of the outer ring of the light component removal tower, and an indirect mining pipeline is arranged at the position of the mining outlet.
Preferably, a feeding hole is arranged in the middle of the light component removal tower, and a feeding pipeline is arranged at the position of the feeding hole
Compared with the prior art, the utility model has the beneficial effects that:
1. the diethylene glycol continuous rectifying tower has the vacuum degree of 30KPa, the tower top temperature of 112 ℃, the tower bottom temperature of 151 ℃, the reflux ratio of R=2 steps four, the diethylene glycol tower top side line is extracted, the product purity reaches 99.9%, the water content is less than 0.01%, the impurity content is 0.03%, the product quality reaches the quality of the top grade product, the product quality is improved, and the problem of salt content in continuous rectification can be effectively solved.
2. The diethylene glycol continuous rectifying tower returns unreacted diethylene glycol to the reaction system for continuous reaction, can realize continuous rectification, and can effectively solve the problems of poor quality and high energy consumption of rectification products.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. a light component removing tower; 2. a discharge port; 3. a feed inlet; 4. a return port; 5. a top section; 6. a condensing discharge pipe; 7. a mining outlet; 8. and (3) rectifying section.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: referring to fig. 1, the present utility model provides a technical solution: a diethylene glycol continuous rectifying tower comprises a light component removal tower 1, a rectifying section 8 and a tower top section 5, wherein the rectifying section 8 is arranged in the middle of the light component removal tower 1, and the tower top section 5 is arranged at the top of the rectifying section 8.
Wherein the height of tower packing in the rectifying section 8 is 10-12 m, and the stripping section is 10-12 m.
Wherein, the bottom of the side of the light component removal tower 1 is provided with a discharge port 2, and a discharge pipeline is arranged at the position of the discharge port 2.
Wherein, the side of the tower top section 5 is provided with a reflux port 4 and a reflux pipeline.
Wherein the top of the top section 5 is provided with a condensate drain 6.
Wherein, the upper portion of the outer lane of the light component removal tower 1 is provided with a mining outlet 7, and an indirect mining pipeline is arranged at the position of the mining outlet 7.
Wherein, the middle part of the light component removal tower 1 is provided with a feed inlet 3, and a feed pipeline is arranged at the position of the feed inlet 3.
In the embodiment, the product tower is operated in vacuum during operation, the tower top temperature is 100-130 ℃ at the vacuum degree of 10-20 KPa, the tower bottom temperature is 145-170 ℃, and the reflux ratio is R=2-5.
The pre-separation tower is vacuum operated, the vacuum degree is 30-50 KPa, the tower top temperature is 60-85 ℃, and the tower bottom temperature is 130-150 ℃. The water obtained at the top of the pre-separation tower with the reflux ratio of R=5-10 enters a sewage system, unreacted raw materials are recovered from the bottom of the tower and enter a product tower for refining. The method has the advantages of realizing process continuity, automatic control, low water content of the product, stable product quality, energy conservation, consumption reduction and environmental protection.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a diethylene glycol continuous rectification tower, includes light component removal tower (1), rectifying section (8) and top of the tower section (5), its characterized in that: the rectifying section (8) is arranged in the middle of the light component removal tower (1), and the tower top section (5) is arranged at the top of the rectifying section (8).
2. The diethylene glycol continuous rectification column according to claim 1, wherein: the tower packing height of the rectifying section (8) is 10-12 m, and the stripping section is 10-12 m.
3. The diethylene glycol continuous rectification column according to claim 1, wherein: the bottom of the side face of the light component removal tower (1) is provided with a discharge hole (2), and a discharge pipeline is arranged at the position of the discharge hole (2).
4. The diethylene glycol continuous rectification column according to claim 1, wherein: and a reflux port (4) is arranged on the side surface of the tower top section (5) and is provided with a reflux pipeline.
5. The diethylene glycol continuous rectification column according to claim 1, wherein: the top of the tower top section (5) is provided with a condensation discharge pipe (6).
6. The diethylene glycol continuous rectification column according to claim 1, wherein: the upper part of the outer ring of the light component removal tower (1) is provided with a mining outlet (7), and an indirect mining pipeline is arranged at the position of the mining outlet (7).
7. The diethylene glycol continuous rectification column according to claim 1, wherein: the middle part of the light component removal tower (1) is provided with a feed inlet (3), and a feed pipeline is arranged at the position of the feed inlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321005458.7U CN219983939U (en) | 2023-04-28 | 2023-04-28 | Diethylene glycol continuous rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321005458.7U CN219983939U (en) | 2023-04-28 | 2023-04-28 | Diethylene glycol continuous rectifying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219983939U true CN219983939U (en) | 2023-11-10 |
Family
ID=88621051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321005458.7U Active CN219983939U (en) | 2023-04-28 | 2023-04-28 | Diethylene glycol continuous rectifying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219983939U (en) |
-
2023
- 2023-04-28 CN CN202321005458.7U patent/CN219983939U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |