CN204824683U - Aqua -solution method urea preparation high -pressure system reducing energy consumption device - Google Patents
Aqua -solution method urea preparation high -pressure system reducing energy consumption device Download PDFInfo
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- CN204824683U CN204824683U CN201520544557.1U CN201520544557U CN204824683U CN 204824683 U CN204824683 U CN 204824683U CN 201520544557 U CN201520544557 U CN 201520544557U CN 204824683 U CN204824683 U CN 204824683U
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- high pressure
- pressure condenser
- methylamine
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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
Abstract
The utility model relates to an aqua -solution method urea preparation high -pressure system reducing energy consumption device, including high pressure condenser, converter, be equipped with the high pressure condenser before the converter, the bottom of high pressure condenser is equipped with liquid ammonia import no. 1, carbon dioxide import and methylamine import no. 1, the shell -side of high pressure condenser is equipped with the steam pocket, the steam pocket is equipped with by -product steam outlet, the top of high pressure condenser is equipped with the intermedium export, the intermedium export links to each other through the intermedium import of pipeline bottom the converter, converter bottom still is equipped with liquid ammonia import no. 2, methylamine import no. 2, the converter top is equipped with the result export, and its beneficial effect is: increase a high pressure condenser before original urea synthesis tower, according to 0.20 ton of steam of 1 ton of urea by -product of the every production of analog computation, 0.03 ton of steam is saved to the middling pressure, and the productivity improves 10%, has effectively improved urea conversion efficiency, and whole transformation is simple, with low costs moreover, and the facilitate promotion is used.
Description
Technical field
The utility model relates to urea production equipment field, specifically relates to a kind of aqua-solution method urea and prepares high-pressure system reducing energy consumption device.
Background technology
Current aqueous solution urea plant consumes high, output, if transform existing high pressure loop, complicated operation, whole urea framework need to reinforce, the difficulty of transformation is large, cost is high, therefore to the transformation of current aqueous solution urea high-tension ring and few, according to the present situation of current aqueous solution urea plant, under background in conjunction with national energy anxiety, designing the device that a kind of energy cost is low, significantly reduce steam consumption, improve urea synthesis rate, is aqueous solution urea plant technical field problem to be solved.
Summary of the invention
For overcoming described deficiency, the purpose of this utility model be to provide a kind of cost low, effectively reduce steam consumption, improve the aqua-solution method urea of urea synthesis rate and prepare high-pressure system reducing energy consumption device.
The utility model solves the technical scheme that its technical problem adopts: high-pressure system reducing energy consumption device prepared by a kind of aqua-solution method urea, comprise high pressure condenser, synthetic tower, high pressure condenser is provided with before synthetic tower, the bottom of described high pressure condenser is provided with liquefied ammonia import one, carbon dioxide inlet and methylamine import one, the shell-side of described high pressure condenser is provided with drum, described drum is provided with byproduct steam outlet, the top of described high pressure condenser is provided with intermediate outlet, described intermediate outlet is connected with the intermediate import bottom synthetic tower by pipeline, liquefied ammonia import two is also provided with bottom described synthetic tower, methylamine import two, described synthetic tower top is provided with product exit, described product exit is connected with preseparator by pipeline.
Further, described liquefied ammonia import one, liquefied ammonia import two are connected with liquefied ammonia pipeline.
Further, described methylamine import one, methylamine import two are connected with methylamine pipeline.
Further, described carbon dioxide inlet is connected with carbonic acid gas pipeline.
Further, described byproduct steam outlet is connected with byproduct steam pipeline.
The utility model has following beneficial effect: before original urea synthesizer, increase a high pressure condenser, simple to operate, reduce the ammonia carbon ratio of system simultaneously, liquefied ammonia, carbonic acid gas, methylamine liquid first react within the condenser, produce reaction heat, reaction heat is shifted out as a vapor from condenser shell-side, the steam of by-product 0.6Mpa, byproduct steam carries out gas-liquid separation by drum, can for two points of well heaters and first steam heater after gas-liquid separation; In high pressure condenser, the material of initial reaction enters in synthetic tower via pipeline, fully reacts in synthetic tower with liquefied ammonia, methylamine, effectively improves Urea Transformation efficiency; Because the ammonia carbon ratio of system reduces, middle pressure load significantly reduces, and one inhales tower turndown ratio increases, whole device stability increases, and simultaneously, pressure saves a part of steam, often produces 1 ton of urea by-product, 0.20 ton of steam according to analog calculation, middle pressure saving 0.03 ton of steam, production capacity improves 10%; And whole transformation is simple, cost is low, easy to utilize.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
1 high pressure condenser in figure, 2 drums, 21 byproduct steam pipelines, 3 synthetic towers, 4 preseparators, 5 liquefied ammonia pipelines, 6 carbonic acid gas pipelines, 7 methylamine pipelines.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.
High-pressure system reducing energy consumption device prepared by a kind of aqua-solution method urea as shown in Figure 1, comprise high pressure condenser 1, synthetic tower 3, high pressure condenser 1 is provided with before synthetic tower 3, the bottom of described high pressure condenser 1 is provided with liquefied ammonia import one, carbon dioxide inlet and methylamine import one, the shell-side of described high pressure condenser 1 is provided with drum 2, described drum 2 is provided with byproduct steam outlet, the top of described high pressure condenser 1 is provided with intermediate outlet, described intermediate outlet is connected with the intermediate import bottom synthetic tower 3 by pipeline, liquefied ammonia import two is also provided with bottom described synthetic tower 3, methylamine import two, described synthetic tower 3 top is provided with product exit, described product exit is connected with preseparator 4 by pipeline.
Further, described liquefied ammonia import one, liquefied ammonia import two are connected with liquefied ammonia pipeline 5.
Further, described methylamine import one, methylamine import two are connected with methylamine pipeline 7.
Further, described carbon dioxide inlet is connected with carbonic acid gas pipeline 6.
Further, described byproduct steam outlet is connected with byproduct steam pipeline 21.
Its principle of work is:
On the basis through flowsheeting, material balance and heat balance, before synthetic tower 3, be provided with high pressure condenser 1, reduce the ammonia carbon ratio of system simultaneously, carbonic acid gas all enters high pressure condenser 1, liquefied ammonia and methylamine are respectively divided into two strands, and one enters high pressure condenser 1, and one enters synthetic tower 3; Liquefied ammonia, carbonic acid gas, methylamine liquid first react in high pressure condenser 1, produce reaction heat, reaction heat is removed from high pressure condenser 1 shell-side with the form of byproduct steam, the steam of by-product 0.6MPa, byproduct steam carries out gas-liquid separation by drum 2, and the byproduct steam after gas-liquid separation can for two points of well heaters and first steam heater; In high pressure condenser 1, the material of initial reaction enters in synthetic tower 3 via pipeline, fully reacts in synthetic tower 3 with liquefied ammonia, methylamine, and abundant reacted product enters preseparator 4 via pipeline, effectively improves Urea Transformation efficiency; Because the ammonia carbon ratio of system reduces, middle pressure load significantly reduces, and one inhales tower turndown ratio increases, whole device stability increases, and simultaneously, pressure saves a part of steam, often produces 1 ton of urea by-product, 0.20 ton of steam according to analog calculation, middle pressure saving 0.03 ton of steam, production capacity improves 10%.
The utility model is not limited to described embodiment, and anyone should learn the structural changes made under enlightenment of the present utility model, and every have identical or close technical scheme with the utility model, all falls within protection domain of the present utility model.
Technology, shape, structure part that the utility model is not described in detail are known technology.
Claims (5)
1. high-pressure system reducing energy consumption device prepared by an aqua-solution method urea, it is characterized in that: comprise high pressure condenser, synthetic tower, high pressure condenser is provided with before synthetic tower, the bottom of described high pressure condenser is provided with liquefied ammonia import one, carbon dioxide inlet and methylamine import one, the shell-side of described high pressure condenser is provided with drum, described drum is provided with byproduct steam outlet, the top of described high pressure condenser is provided with intermediate outlet, described intermediate outlet is connected with the intermediate import bottom synthetic tower by pipeline, liquefied ammonia import two is also provided with bottom described synthetic tower, methylamine import two, described synthetic tower top is provided with product exit, described product exit is connected with preseparator by pipeline.
2. high-pressure system reducing energy consumption device prepared by a kind of aqua-solution method urea according to claim 1, it is characterized in that: described liquefied ammonia import one, liquefied ammonia import two are connected with liquefied ammonia pipeline.
3. high-pressure system reducing energy consumption device prepared by a kind of aqua-solution method urea according to claim 1, it is characterized in that: described methylamine import one, methylamine import two are connected with methylamine pipeline.
4. high-pressure system reducing energy consumption device prepared by a kind of aqua-solution method urea according to claim 1, it is characterized in that: described carbon dioxide inlet is connected with carbonic acid gas pipeline.
5. high-pressure system reducing energy consumption device prepared by a kind of aqua-solution method urea according to claim 1, it is characterized in that: described byproduct steam outlet is connected with byproduct steam pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544557.1U CN204824683U (en) | 2015-07-24 | 2015-07-24 | Aqua -solution method urea preparation high -pressure system reducing energy consumption device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544557.1U CN204824683U (en) | 2015-07-24 | 2015-07-24 | Aqua -solution method urea preparation high -pressure system reducing energy consumption device |
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| CN204824683U true CN204824683U (en) | 2015-12-02 |
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| CN201520544557.1U Expired - Fee Related CN204824683U (en) | 2015-07-24 | 2015-07-24 | Aqua -solution method urea preparation high -pressure system reducing energy consumption device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272756A (en) * | 2017-07-21 | 2017-10-20 | 四川金象赛瑞化工股份有限公司 | A kind of novel urea ammonia/carbon ratio control device |
| CN113784921A (en) * | 2019-05-10 | 2021-12-10 | 雅苒国际集团 | Steam network assembly for a plant comprising an ammonia production unit and a urea production unit |
-
2015
- 2015-07-24 CN CN201520544557.1U patent/CN204824683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272756A (en) * | 2017-07-21 | 2017-10-20 | 四川金象赛瑞化工股份有限公司 | A kind of novel urea ammonia/carbon ratio control device |
| CN113784921A (en) * | 2019-05-10 | 2021-12-10 | 雅苒国际集团 | Steam network assembly for a plant comprising an ammonia production unit and a urea production unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20151202 Termination date: 20160724 |