CN105085325A - Energy-saving aqueous solution complete cycle urea production system - Google Patents
Energy-saving aqueous solution complete cycle urea production system Download PDFInfo
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- CN105085325A CN105085325A CN201410729649.7A CN201410729649A CN105085325A CN 105085325 A CN105085325 A CN 105085325A CN 201410729649 A CN201410729649 A CN 201410729649A CN 105085325 A CN105085325 A CN 105085325A
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- energy
- aqueous solution
- thermal source
- production system
- complete cycle
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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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Abstract
The invention discloses an energy-saving aqueous solution complete cycle urea production system and relates to the technical field of energy-saving aqueous solution complete cycle urea production. The energy-saving aqueous solution complete cycle urea production system comprises a pre-evaporator, a heat source output device and a two-stage decomposition tower. The pre-evaporator comprises an upper separation section and a lower heat utilization section. The lower heat utilization section is provided with a heat inlet and a heat outlet. The heat inlet and the heat outlet are connected to the heat source output device. The lower part of the heat utilization section is connected to the two-stage decomposition tower. The interior of the two-stage decomposition tower is divided into a rectifying section, a third fine purifier, a second fine purifier and a first fine purifier from top to bottom. The energy-saving aqueous solution complete cycle urea production system can reduce steam consumption by 200-300kg/tur and liquefied ammonia consumption by 5-10kg/tur and has obvious benefits.
Description
art
The present invention relates to energy-saving increasing on total recycle urea plants production technical field, particularly relate to a kind of energy-saving increasing on total recycle urea plants production system.
2, background technology
Since the eighties, China's urea industry development has started a new stage, numerous small nitrogenous fertilizer plant has carried out changing products urea, the technical progress of small nitrogenous fertilizer plant and technical renovation is made to there occurs the change of matter, in succession build up many covers liquid structure technique frequent low-energy impact, developing rapidly of frequent low-energy impact, it is applicable China's national situation, give full play to the advantage of former little nitrogen, make China's water solution total cycling method technique technically, energy consumption there is larger progress, but along with international and domestic regulation and control in the energy, the shortcoming of liquid structure technique can not meet the demand of enterprise to less energy-consumption aspect.
summary of the invention
The object of this invention is to provide a kind of complete circling urea production system reducing increasing on total recycle urea plants production technique steam consumption, liquefied ammonia consumption, electric consumption.
The technical solution adopted for the present invention to solve the technical problems is: it comprises preevaporator, thermal source output equipment, two sections of decomposition towers, described preevaporator comprises the segregation section of top and the heat energy utilization section of below, heat energy utilization section has thermal source import and thermal source import, thermal source import and thermal source import all with thermal source output equipment to being connected, be connected with two sections of decomposition towers below heat energy utilization section, described two sections of decomposition tower inside are divided into rectifying section, the 3rd fine purifiation device, the second fine purifiation device and the first fine purifiation device from the top down successively.
The invention has the beneficial effects as follows: this practical technology is by the recycling of thermal source in production process, and the Optimizing Reconstruction of processing unit reduces steam consumption 200-300kg/tur, and reduce liquefied ammonia and consume 5-10kg/tur, benefit is obvious.
accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
embodiment
See Fig. 1, urea soln enters in heat energy utilization section 3 heat transfer tube after the initial gross separation of preevaporator 1 segregation section 2, the thermal source entered with thermal source import 4 carries out heat exchange, thermal source from thermal source output equipment 6 to heat energy utilization section 3, heat exchange is carried out with the urea soln in pipe, thermal source after heat exchange flows back in thermal source output equipment 6 through thermal source outlet 5, and the urea soln absorbing heat enters two sections of decomposition towers 7 and carries out technique separation, and what need rectifying contains NH
3process gas process through the first fine purifiation device 8, second fine purifiation device 9, the 3rd fine purifiation device 10, rectifying section 11 successively, the NH the most at last in process gas
3absorb completely.
Claims (1)
1. an energy-saving increasing on total recycle urea plants production system, it is characterized in that: it comprises preevaporator, thermal source output equipment, two sections of decomposition towers, described preevaporator comprises the segregation section of top and the heat energy utilization section of below, heat energy utilization section has thermal source import and thermal source import, thermal source import and thermal source import all with thermal source output equipment to being connected, be connected with two sections of decomposition towers below heat energy utilization section, described two sections of decomposition tower inside are divided into rectifying section, the 3rd fine purifiation device, the second fine purifiation device and the first fine purifiation device from the top down successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729649.7A CN105085325A (en) | 2014-12-05 | 2014-12-05 | Energy-saving aqueous solution complete cycle urea production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410729649.7A CN105085325A (en) | 2014-12-05 | 2014-12-05 | Energy-saving aqueous solution complete cycle urea production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105085325A true CN105085325A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410729649.7A Pending CN105085325A (en) | 2014-12-05 | 2014-12-05 | Energy-saving aqueous solution complete cycle urea production system |
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| CN (1) | CN105085325A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949086A (en) * | 2016-06-24 | 2016-09-21 | 合肥欧克斯新型建材有限公司 | Urea production system |
| CN106045884A (en) * | 2016-05-23 | 2016-10-26 | 肥西县鑫山机械厂 | Production system for urea |
| CN106045885A (en) * | 2016-05-23 | 2016-10-26 | 肥西县鑫山机械厂 | Energy-saving type water solution complete circling urea production system |
| CN106117086A (en) * | 2016-06-24 | 2016-11-16 | 合肥欧克斯新型建材有限公司 | A kind of energy-saving increasing on total recycle urea plants production system |
| CN106187822A (en) * | 2016-06-30 | 2016-12-07 | 合肥天沃能源科技有限公司 | A kind of carbamide production system |
| CN106187821A (en) * | 2016-06-30 | 2016-12-07 | 合肥天沃能源科技有限公司 | A kind of energy-saving increasing on total recycle urea plants production system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203807366U (en) * | 2014-02-25 | 2014-09-03 | 安徽瀚洋节能科技有限公司 | Energy-saving aqueous solution total-recycling urea production system |
-
2014
- 2014-12-05 CN CN201410729649.7A patent/CN105085325A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203807366U (en) * | 2014-02-25 | 2014-09-03 | 安徽瀚洋节能科技有限公司 | Energy-saving aqueous solution total-recycling urea production system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045884A (en) * | 2016-05-23 | 2016-10-26 | 肥西县鑫山机械厂 | Production system for urea |
| CN106045885A (en) * | 2016-05-23 | 2016-10-26 | 肥西县鑫山机械厂 | Energy-saving type water solution complete circling urea production system |
| CN105949086A (en) * | 2016-06-24 | 2016-09-21 | 合肥欧克斯新型建材有限公司 | Urea production system |
| CN106117086A (en) * | 2016-06-24 | 2016-11-16 | 合肥欧克斯新型建材有限公司 | A kind of energy-saving increasing on total recycle urea plants production system |
| CN106187822A (en) * | 2016-06-30 | 2016-12-07 | 合肥天沃能源科技有限公司 | A kind of carbamide production system |
| CN106187821A (en) * | 2016-06-30 | 2016-12-07 | 合肥天沃能源科技有限公司 | A kind of energy-saving increasing on total recycle urea plants production system |
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Application publication date: 20151125 |
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| WD01 | Invention patent application deemed withdrawn after publication |