CN103102184A - Method for utilizing cold energy of circulating water of ammonia evaporator - Google Patents
Method for utilizing cold energy of circulating water of ammonia evaporator Download PDFInfo
- Publication number
- CN103102184A CN103102184A CN2012104271569A CN201210427156A CN103102184A CN 103102184 A CN103102184 A CN 103102184A CN 2012104271569 A CN2012104271569 A CN 2012104271569A CN 201210427156 A CN201210427156 A CN 201210427156A CN 103102184 A CN103102184 A CN 103102184A
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- water
- circulatory pool
- cooling tower
- ammonia evaporator
- inhaling
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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
- Y02P20/10—Process efficiency
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A method for utilizing the cold energy of circulating water of an ammonia evaporator comprises the steps of dividing water in a dry absorption circulating pool for sulfuric acid production into two paths, and pumping one path of water to a plate heat exchanger; the other way is pumped to an anode protection acid cooler; dividing hot water generated by a monoammonium phosphate heater for producing monoammonium phosphate into two paths, wherein one path of hot water is sent to a dry absorption circulating pool, and the other path of hot water is sent to a water cooling tower; and cold water in the water cooling tower enters the dry absorption circulation tank. The advantages are that: not only reasonably utilizes water resources, but also saves electricity consumption. And energy is saved.
Description
Technical field
The present invention relates to a kind of technique of utilizing of ammonia vaporization cycle water-cooled amount.
Background technology
At present, in fertiliser production, when producing monoammonium phosphate, liquid ammonia evaporator used is all directly to carry out evaporation operation with steam as thermal source, and when heating with steam because vapor temperature is too high, the too quickly and more difficult control of the speed of ammonia evaporation is controlled and production safety is brought labile factor to productive capacity, the phosphorus ammonium well heater of using when producing monoammonium phosphate simultaneously is when work, and the approximately hot water of 90 ℃ of generation is not used.In addition, when producing sulfuric acid, the cold water that anodic protection acid cooler used produces is not used yet.
Summary of the invention
Purpose of the present invention is exactly the deficiency that is not used for the remaining cold water that produces in fertiliser production and remaining hot water, and a kind of method of utilizing of ammonia evaporator recirculated water cold is provided
The inventive method is that the moisture of dried suction circulatory pool that gas washing in SA production is used is two-way, and one the tunnel with being pumped to plate-type heat exchanger, does the water of inhaling circulatory pool and deliver to water cooling tower after plate-type heat exchanger is cooling; Another road is done the water of inhaling circulatory pool and deliver to water cooling tower after the anodic protection acid cooler is cooling with being pumped to the anodic protection acid cooler; The hot water that the phosphorus ammonium well heater of monoammonium phosphate production use is produced is divided into two-way, and one the road delivers to do and inhales circulatory pool, and water cooling tower is delivered on another road; The cold water of water cooling tower enters to do again inhales circulatory pool; Water cooling tower enters the cold water input of dried suction circulatory pool and the hot water of phosphorus ammonium well heater generation enters the dried hot water amount who inhales circulatory pool by regulating, make the water temperature of doing the suction circulatory pool remain on 34-36 ℃, to do again the water of 34-36 ℃ of inhaling circulatory pool and deliver to the ammonia evaporator of monoammonium phosphate production use, as the evaporation thermal source of ammonia evaporator, do the water coolant of water after the ammonia evaporator heat exchange of 34-36 ℃ of inhaling circulatory pool and deliver to again water cooling tower.
advantage of the present invention is: the hot water that utilizes the remaining cold water that the liquid ammonia evaporator of monoammonium phosphate production use produces and the phosphorus ammonium well heater that utilizes monoammonium phosphate production use to produce is regulated the water temperature of the dried suction circulatory pool that gas washing in SA production uses to 34-36 ℃, 34-36 ℃ of water of the dried suction circulatory pool that gas washing in SA production is used is as the evaporation thermal source of the liquid ammonia evaporator of monoammonium phosphate production use, save the steam thermal source of liquid ammonia evaporator, can guarantee that the ammonia pressure is stabilized in 0.4-0.5MPa, when having avoided steam to heat because vapor temperature is too high, too quickly and the more difficult control of the speed of ammonia evaporation, bring the factors of instability to productive capacity control and production safety, not only rational utilization of water resources but also saved power consumption.Save energy.
Description of drawings
Fig. 1 is process flow diagram of the present invention.
Embodiment
As shown in Figure 1, the moisture of the dried suction circulatory pool that gas washing in SA production is used is two-way, and one the tunnel with being pumped to plate-type heat exchanger, does the water of inhaling circulatory pool and deliver to water cooling tower after plate-type heat exchanger is cooling; Another road is done the water of inhaling circulatory pool and deliver to water cooling tower after the anodic protection acid cooler is cooling with being pumped to the anodic protection acid cooler; The hot water that the phosphorus ammonium well heater of monoammonium phosphate production use is produced is divided into two-way, and one the road delivers to do and inhales circulatory pool, and water cooling tower is delivered on another road; The cold water of water cooling tower enters to do again inhales circulatory pool; Water cooling tower enters the cold water input of dried suction circulatory pool and the hot water of phosphorus ammonium well heater generation enters the dried hot water amount who inhales circulatory pool by regulating, make the water temperature of doing the suction circulatory pool remain on 34-36 ℃, to do again the water of 34-36 ℃ of inhaling circulatory pool and deliver to the ammonia evaporator of monoammonium phosphate production use, as the evaporation thermal source of ammonia evaporator, do the water coolant of water after the ammonia evaporator heat exchange of 34-36 ℃ of inhaling circulatory pool and deliver to again water cooling tower.
When winter, outside temperature was low, for the device internal recycle water that avoids evaporating freezes and guarantees steam output, by returned to the condensation hot water supply of sulfuric acid plant by phosphorus ammonium well heater, guarantee the circulatory pool water temperature, this moment, the water cooling tower fan was in shut down condition, when summer, outside temperature was high, can suitably starts the water cooling tower fan recirculated water of do inhaling and cleaning section returns is lowered the temperature, guarantee that the circulating water pool water temp is stable.
Claims (1)
- An ammonia evaporator recirculated water cold utilize method, it is characterized in that: the moisture of the dried suction circulatory pool that gas washing in SA production is used is two-way, and one the tunnel with being pumped to plate-type heat exchanger, does the water of inhaling circulatory pool and deliver to water cooling tower after plate-type heat exchanger is cooling; Another road is done the water of inhaling circulatory pool and deliver to water cooling tower after the anodic protection acid cooler is cooling with being pumped to the anodic protection acid cooler; The hot water that the phosphorus ammonium well heater of monoammonium phosphate production use is produced is divided into two-way, and one the road delivers to do and inhales circulatory pool, and water cooling tower is delivered on another road; The cold water of water cooling tower enters to do again inhales circulatory pool; Water cooling tower enters the cold water input of dried suction circulatory pool and the hot water of phosphorus ammonium well heater generation enters the dried hot water amount who inhales circulatory pool by regulating, make the water temperature of doing the suction circulatory pool remain on 34-36 ℃, to do again the water of 34-36 ℃ of inhaling circulatory pool and deliver to the ammonia evaporator of monoammonium phosphate production use, as the evaporation thermal source of ammonia evaporator, do the water coolant of water after the ammonia evaporator heat exchange of 34-36 ℃ of inhaling circulatory pool and deliver to again water cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427156.9A CN103102184B (en) | 2012-10-31 | 2012-10-31 | Method for utilizing cold energy of circulating water of ammonia evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427156.9A CN103102184B (en) | 2012-10-31 | 2012-10-31 | Method for utilizing cold energy of circulating water of ammonia evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103102184A true CN103102184A (en) | 2013-05-15 |
| CN103102184B CN103102184B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210427156.9A Active CN103102184B (en) | 2012-10-31 | 2012-10-31 | Method for utilizing cold energy of circulating water of ammonia evaporator |
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| Country | Link |
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| CN (1) | CN103102184B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395760A (en) * | 2013-08-07 | 2013-11-20 | 中国海洋石油总公司 | Method for removing ammonium phosphate circulation water odor by using wet-process phosphoric acid circulation water |
| CN104496613A (en) * | 2015-01-13 | 2015-04-08 | 四川美丰化工股份有限公司 | Compound fertilizer finished product cooling method and device |
| CN105731392A (en) * | 2016-01-29 | 2016-07-06 | 吉首大学 | Cooling water circulation system for sulfuric acid production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013736A1 (en) * | 1995-10-10 | 1997-04-17 | The Penn State Research Foundation | Solid-phase p buffer for sustained, low-leaching p fertilization of plants |
| CN101078532A (en) * | 2007-06-15 | 2007-11-28 | 淄博建龙化工有限公司 | Method and device for heating using residual heat of sulfuric acid production |
| CN202089771U (en) * | 2011-03-15 | 2011-12-28 | 合肥宁垣工程技术有限责任公司 | Comprehensive utilization device for neutralization tail gas waste heat |
-
2012
- 2012-10-31 CN CN201210427156.9A patent/CN103102184B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013736A1 (en) * | 1995-10-10 | 1997-04-17 | The Penn State Research Foundation | Solid-phase p buffer for sustained, low-leaching p fertilization of plants |
| CN101078532A (en) * | 2007-06-15 | 2007-11-28 | 淄博建龙化工有限公司 | Method and device for heating using residual heat of sulfuric acid production |
| CN202089771U (en) * | 2011-03-15 | 2011-12-28 | 合肥宁垣工程技术有限责任公司 | Comprehensive utilization device for neutralization tail gas waste heat |
Non-Patent Citations (1)
| Title |
|---|
| 王亚兰等: "硫酸和磷复肥装置中的污水综合利用", 《硫磷设计与粉体工程》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395760A (en) * | 2013-08-07 | 2013-11-20 | 中国海洋石油总公司 | Method for removing ammonium phosphate circulation water odor by using wet-process phosphoric acid circulation water |
| CN103395760B (en) * | 2013-08-07 | 2015-09-30 | 中国海洋石油总公司 | A kind of method utilizing phosphoric acid by wet process recirculated water to remove phosphorus ammonium recirculated water peculiar smell |
| CN104496613A (en) * | 2015-01-13 | 2015-04-08 | 四川美丰化工股份有限公司 | Compound fertilizer finished product cooling method and device |
| CN105731392A (en) * | 2016-01-29 | 2016-07-06 | 吉首大学 | Cooling water circulation system for sulfuric acid production |
| CN105731392B (en) * | 2016-01-29 | 2018-06-26 | 韶关市广宝化工有限公司 | A kind of cooling water recirculation system of gas washing in SA production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103102184B (en) | 2014-04-23 |
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Address after: 448120 Yueyuehubei Road No. 7, Jingmen City, Hubei Province Patentee after: Xinyangfeng Agricultural Science and Technology Co., Ltd. Address before: 448150 Shiqiaoyi Town, Dongbao District, Jingmen City, Hubei Province Patentee before: Hubei Newyangfeng Fertilizer Stock Co., Ltd. |
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Effective date of registration: 20220429 Address after: 443000 No. 1, Yidu Chemical Industry Park Middle Road, Zhicheng Town, Yidu City, Yichang City, Hubei Province Patentee after: YICHANG XINYANGFENG FERTILIZER CO.,LTD. Address before: 448120 Yueyuehubei Road No. 7, Jingmen City, Hubei Province Patentee before: Xinyangfeng Agricultural Science and Technology Co.,Ltd. |
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