CN205965081U - A rectifying column internals for urea production - Google Patents
A rectifying column internals for urea production Download PDFInfo
- Publication number
- CN205965081U CN205965081U CN201620955833.8U CN201620955833U CN205965081U CN 205965081 U CN205965081 U CN 205965081U CN 201620955833 U CN201620955833 U CN 201620955833U CN 205965081 U CN205965081 U CN 205965081U
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- CN
- China
- Prior art keywords
- rectifying column
- urea production
- internals
- rectification tower
- tower internals
- 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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- 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
- Y02P20/141—Feedstock
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a rectifying column internals for urea production, the rectifying column internals set up in the below of packing layer, by a plurality of continuous hump structure composing, set up evenly distributed's aperture in the both sides of every hump structure. This design has increased the ammonia that rises, the degree of mixing of carbon dioxide gas mixture, the heat utilization that can improve ascending mist under urine that flows down and follow to effectively reduce rectifying column hypomere heating steam's consumption, realize energy saving and consumption reduction's purpose.
Description
First, technical field
This utility model is related to a kind of accessory of urea plant, specifically a kind of rectification for urea production
Tower internals.
2nd, background technology
At present, with the progress of urea production process technology, carbon dioxide stripping process urea production process has become state
The main technique of interior urea production, rectifying column is one of visual plant in process for producing urea.
Conventional rectification tower internals has board-like, has hump type, its construction difference leads to rectification effect to have different,
Thus leading to rectifying column hypomere heating steam consumption different.
3rd, utility model content
This utility model aims to provide a kind of rectification tower internals for urea production, and this internals is continuous hump type knot
Structure, hump both sides have aperture, make the urine flowing down from above more equal with the mixing of the ammonia from lower rising, carbon dioxide mix gas
Even, improve the Btu utilization rising mixed gas, while ensureing rectification effect, effectively reduce the heating of rectifying column hypomere
The consumption of steam.Orifice size designs according to technological requirement and determines.
This utility model is used for the rectification tower internals of urea production, and this internals is arranged on the lower section of packing layer, by multiple companies
Continuous hump structure is constituted, and opens up equally distributed aperture in the both sides of each hump structure.
Described aperture alternately opens up in a vertical and horizontal direction, to increase the mixability of liquid phase.
Described aperture is rectangle.
It is to ensure that gas-liquid flow is unobstructed logical that hole shape is defined to rectangular purpose one, and two is to improve gas-liquid mixed degree.
When being embodied as, multiple continuous hump structures can continuously overall for one it is also possible to by bolt by each
Hump structure is connected.
The beneficial effect that this utility model can reach is：
Increase the urine flowing down from above and the ammonia from lower rising, the degree of mixing of carbon dioxide mix gas, rising can be improved
The Btu utilization of mixed gas, thus effectively reducing the consumption that rectifying column hypomere heats steam, realizes energy-saving purpose.
4th, brief description
Fig. 1 is this utility model rectification tower internals schematic diagram.
Fig. 2 is this utility model rectification tower internals sectional view.
Fig. 3 is this utility model rectification tower internals top view.
In figure：1 tower body, 2 packing layers, 3 internals, 4 hump structures, 5 apertures, 6 bolts.
5th, specific embodiment
This utility model embodiment carbamide rectification tower internals schematic diagram, referring to Fig. 1 to Fig. 3.
This utility model is used for the rectification tower internals of urea production, and this internals is arranged on the lower section of packing layer 2, by multiple companies
Continuous hump structure 4 is constituted, and opens up equally distributed aperture 5 in the both sides of each hump structure 4.Each hump structure 4 is by spiral shell
Bolt 6 is connected into an entirety.
Described aperture 5 alternately opens up in a vertical and horizontal direction, to increase the mixability of liquid phase.
Described aperture 5 is rectangle.It is to ensure that gas-liquid flow is unobstructed logical that hole shape is defined to rectangular purpose one, and two are
Improve gas-liquid mixed degree.
In carbamide rectifying column work process, urine flows down from above, after packing layer 2 is uniformly distributed, is flowed down by aperture 5；
Ammonia, carbon dioxide mix gas, from lower rising, are entered packing layer 2 by aperture 5, are uniformly mixed with the urine in packing layer 2 and go forward side by side
Row heat exchange, preheats to urine, and mixture temperature declines, and flows downwardly together with urine after water vapour condensation therein
Dynamic, ammonia, carbon dioxide out enter low pressure carbamate condenser from rectifying column gas outlet.
Claims (3)
1. a kind of rectification tower internals for urea production it is characterised in that：Described rectification tower internals (3) is arranged on packing layer
(2) lower section, is made up of multiple continuous hump structures (4), opens up in the both sides of each hump structure (4) equally distributed little
Hole (5).
2. rectification tower internals according to claim 1 it is characterised in that：
Described aperture (5) alternately opens up, in a vertical and horizontal direction to increase the mixability of liquid phase.
3. rectification tower internals according to claim 1 and 2 it is characterised in that：
Described aperture (5) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955833.8U CN205965081U (en) | 2016-08-26 | 2016-08-26 | A rectifying column internals for urea production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955833.8U CN205965081U (en) | 2016-08-26 | 2016-08-26 | A rectifying column internals for urea production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205965081U true CN205965081U (en) | 2017-02-22 |
Family
ID=58036858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620955833.8U Active CN205965081U (en) | 2016-08-26 | 2016-08-26 | A rectifying column internals for urea production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205965081U (en) |
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2016
- 2016-08-26 CN CN201620955833.8U patent/CN205965081U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |