CN109718638A - A kind of energy-saving urea scrubbing tower based on Melamine Production - Google Patents
A kind of energy-saving urea scrubbing tower based on Melamine Production Download PDFInfo
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- CN109718638A CN109718638A CN201711022971.6A CN201711022971A CN109718638A CN 109718638 A CN109718638 A CN 109718638A CN 201711022971 A CN201711022971 A CN 201711022971A CN 109718638 A CN109718638 A CN 109718638A
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- heat
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- urine
- distribution grid
- tube bundle
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Abstract
The present invention relates to industrial chemicals production equipment fields, specifically, being related to a kind of energy-saving urea scrubbing tower based on Melamine Production.Tower body is washed including urine, the urine, which is washed in tower body, is provided with heat-exchanging tube bundle, and the top of the heat-exchanging tube bundle is equipped with bracket, and liquid urine nozzle is provided with above the bracket, protection against erosion distribution grid is provided between the heat-exchanging tube bundle and bracket；Several through-holes are evenly arranged on the plate body of the protection against erosion distribution grid.The present invention is that protection against erosion distribution grid is provided between heat-exchanging tube bundle and bracket; after the process gas come from the urine top Xi Ta passes through the through-hole on protection against erosion distribution grid with liquid area; it enters back on the outside of the heat-exchanging tube bundle of lower section and exchanges heat; it can prevent from urinating heat exchanger tube erosion corrosion leakage caused by part heat exchanger tube caused by the liquid urine that nozzle sprays is unevenly distributed is washed away by a large amount of liquid areas from liquid; it plays a protective role to exchange heat pipe bundle; the entirety for extending Huan Re Guan Bouquet uses the time; production cost is saved, production efficiency is improved.
Description
Technical field
The present invention relates to industrial chemicals production equipment fields, specifically, being related to a kind of section based on Melamine Production
It can urea washes tower.
Background technique
During Melamine Production, urea washes tower (referred to as urine washes tower) is a capital equipment, main function
It is process gas of the liquid area washing from Cool gas blower using circulation, melamine, by-product in absorption technique gas
The solid impurities such as object while reaching purification gas purpose, reduce the temperature of gas, to recycle simultaneously by-product low-pressure steam.
Specific workflow are as follows: wash the process gas of top of tower from urine and urine washes tower heat-exchanging tube bundle top liquid and urinates the circulation that nozzle sprays
It goes downstream after liquid urine mixing, carries out heat exchange cooling by the water in the outside and heat-exchanging tube bundle of heat-exchanging tube bundle, water absorbs heat
Become steam and remove low-pressure steam pipe network, compression post is gone to recycle after process gas purifying and cooling.In three Duan Huanre pipe Bouquet,
Liquid area nozzle is arranged at the top in upper section and middle section, and liquid area comes into full contact with after nozzle is distributed with gas.
It finds in actual use, upper section and middle section after 8-10 months using occurring rushing at heat exchanger tube upper elbow
Brush corrosion leakage problem, needs to exchange heat pipe bundle and is replaced, replacement process time-consuming is more, causes biggish economic loss.Through
According to the analysis, during liquid area recycles after the impurity in absorption gas, due to being mixed with solid impurity, so through
When crossing nozzle, it cannot be distributed well.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving urea scrubbing tower based on Melamine Production, it is above-mentioned to solve
The technical issues of.
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of energy-saving urea scrubbing tower based on Melamine Production, including urine wash tower body, and the urine washes setting in tower body
There is heat-exchanging tube bundle, the top of the heat-exchanging tube bundle is equipped with bracket, and liquid urine nozzle is provided with above the bracket, and feature exists
In: protection against erosion distribution grid is provided between the heat-exchanging tube bundle and bracket, the protection against erosion distribution grid is in inverted truncated cone-shaped
Tubular structure, the periphery of top opening are fixed on urine and wash on the inner wall of tower body；It is uniformly set on the plate body of the protection against erosion distribution grid
It is equipped with several through-holes.
It further says, the number of through-holes being arranged on the plate body of the protection against erosion distribution grid is 2500-2700.
It further says, the top opening diameter of the protection against erosion distribution grid is 2.2m, and base opening diameter is 578mm.
The utility model has the advantages that compared with prior art, the present invention is to be provided with protection against erosion between heat-exchanging tube bundle and bracket to be distributed
Plate enters back into lower section and changes after the process gas come from the urine top Xi Ta passes through the through-hole on protection against erosion distribution grid with liquid area
It exchanges heat on the outside of heat pipe bundle, part heat exchanger tube caused by the liquid urine for urinating nozzle ejection from liquid can be prevented to be unevenly distributed is a large amount of
The leakage of heat exchanger tube erosion corrosion caused by liquid area washes away, plays a protective role to exchange heat pipe bundle, and hot pipe Bouquet is changed in extension
Entirety use the time, save production cost, improve production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is the partial structural diagram of heretofore described protection against erosion distribution grid.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
Referring to Fig.1, the energy-saving urea scrubbing tower of the present invention based on Melamine Production, including urine wash tower body 1,
The urine, which is washed in tower body 1, is provided with heat-exchanging tube bundle 2, and the top of the heat-exchanging tube bundle 2 is equipped with bracket 4, the top of the bracket 4
It is provided with liquid urine nozzle 5.Protection against erosion distribution grid 3, the protection against erosion distribution grid 3 are provided between the heat-exchanging tube bundle 2 and bracket 4
In the tubular structure of inverted truncated cone-shaped, top opening diameter is 2.2m, and base opening diameter is 578mm.3 top opening of protection against erosion distribution grid
Periphery is fixed on urine and washes on the inner wall of tower body 1.2500-2700 are evenly arranged on the plate body of the protection against erosion distribution grid 3
Through-hole 31.
The above is only embodiments of the present invention, are not intended to limit the scope of the invention, all to utilize the present invention
Equivalent structure made by specification and accompanying drawing content is directly or indirectly used in other related technical areas, similarly at this
Within the scope of patent protection of invention.
Claims (3)
1. a kind of energy-saving urea scrubbing tower based on Melamine Production, including urine are washed tower body (1), the urine washes tower body
(1) it is provided with heat-exchanging tube bundle (2) in, the top of the heat-exchanging tube bundle (2) is equipped with bracket (4), and the top of the bracket (4) is arranged
There is liquid to urinate nozzle (5), it is characterised in that: to be provided with protection against erosion distribution grid (3), institute between the heat-exchanging tube bundle (2) and bracket (4)
The tubular structure that protection against erosion distribution grid (3) are in inverted truncated cone-shaped is stated, the periphery of top opening is fixed on urine and washes the interior of tower body (1)
On wall；Several through-holes (31) are evenly arranged on the plate body of the protection against erosion distribution grid (3).
2. the energy-saving urea scrubbing tower based on Melamine Production according to claim 1, it is characterised in that: the protection against erosion
Through-hole (31) number being arranged on the plate body of distribution grid (3) is 2500-2700.
3. the energy-saving urea scrubbing tower based on Melamine Production according to claim 1, it is characterised in that: the protection against erosion
The top opening diameter of distribution grid (3) is 2.2m, and base opening diameter is 578mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022971.6A CN109718638A (en) | 2017-10-27 | 2017-10-27 | A kind of energy-saving urea scrubbing tower based on Melamine Production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022971.6A CN109718638A (en) | 2017-10-27 | 2017-10-27 | A kind of energy-saving urea scrubbing tower based on Melamine Production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109718638A true CN109718638A (en) | 2019-05-07 |
Family
ID=66290843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711022971.6A Pending CN109718638A (en) | 2017-10-27 | 2017-10-27 | A kind of energy-saving urea scrubbing tower based on Melamine Production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109718638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375133A (en) * | 2021-06-23 | 2021-09-10 | 四川金象赛瑞化工股份有限公司 | High-grade steam production device utilizing melamine production system and method for producing high-grade steam by utilizing high-grade steam production device |
| CN114682054A (en) * | 2022-04-02 | 2022-07-01 | 奎屯锦疆化工有限公司 | Melamine urea washing tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497393U (en) * | 2009-08-31 | 2010-06-02 | 聊城市鲁西化工工程设计有限责任公司 | Heat exchanging device of washing tower |
| WO2012126979A1 (en) * | 2011-03-24 | 2012-09-27 | Borealis Agrolinz Melamine Gmbh | Method for treating offgases from a melamine plant |
| CN202470862U (en) * | 2012-03-07 | 2012-10-03 | 青岛捷能高新技术有限责任公司 | Novel baffle for heat exchanger shell heating medium inlet |
| CN203259053U (en) * | 2013-04-24 | 2013-10-30 | 威海石岛重工有限公司 | Pipe-shell type heat exchanger impingement baffle structure |
| CN104693135A (en) * | 2013-12-04 | 2015-06-10 | 山东联合化工股份有限公司 | Urea-caking-proofing urine washing tower |
-
2017
- 2017-10-27 CN CN201711022971.6A patent/CN109718638A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497393U (en) * | 2009-08-31 | 2010-06-02 | 聊城市鲁西化工工程设计有限责任公司 | Heat exchanging device of washing tower |
| WO2012126979A1 (en) * | 2011-03-24 | 2012-09-27 | Borealis Agrolinz Melamine Gmbh | Method for treating offgases from a melamine plant |
| CN202470862U (en) * | 2012-03-07 | 2012-10-03 | 青岛捷能高新技术有限责任公司 | Novel baffle for heat exchanger shell heating medium inlet |
| CN203259053U (en) * | 2013-04-24 | 2013-10-30 | 威海石岛重工有限公司 | Pipe-shell type heat exchanger impingement baffle structure |
| CN104693135A (en) * | 2013-12-04 | 2015-06-10 | 山东联合化工股份有限公司 | Urea-caking-proofing urine washing tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375133A (en) * | 2021-06-23 | 2021-09-10 | 四川金象赛瑞化工股份有限公司 | High-grade steam production device utilizing melamine production system and method for producing high-grade steam by utilizing high-grade steam production device |
| CN114682054A (en) * | 2022-04-02 | 2022-07-01 | 奎屯锦疆化工有限公司 | Melamine urea washing tower |
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Application publication date: 20190507 |