CN104211087A - Preparing system and preparing technology of high-concentration ammonia water - Google Patents
Preparing system and preparing technology of high-concentration ammonia water Download PDFInfo
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- CN104211087A CN104211087A CN201410336712.0A CN201410336712A CN104211087A CN 104211087 A CN104211087 A CN 104211087A CN 201410336712 A CN201410336712 A CN 201410336712A CN 104211087 A CN104211087 A CN 104211087A
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Abstract
The invention provides a preparing system and a preparing technology of high-concentration ammonia water. The manufacturing system includes a liquid ammonia evaporator, an ammonia gas preparing device and an ammonia water preparing device. The liquid ammonia evaporator is provided with a first liquid ammonia inlet, a vapor inlet and a first ammonia gas outlet; the ammonia gas preparing device is provided with a second liquid ammonia inlet, a second ammonia gas outlet, an ammonia water inlet and an ammonia water finished product outlet; and the ammonia water preparing device is provided with an ammonia gas inlet, a desalted water inlet and an ammonia water outlet. Both the first ammonia gas outlet on the liquid ammonia evaporator and the second liquid ammonia inlet on the ammonia gas preparing device are connected to the ammonia gas inlet of the ammonia water preparing device. The ammonia water outlet of the ammonia water preparing device is connected to the ammonia water inlet of the ammonia gas preparing device. The preparing system also includes a circulating cooling water column. Both of the liquid ammonia evaporator and the ammonia water preparing device are provided with cooling water circulating pipelines which are connected to the circulating cooling water column. The preparing system is free of circulating preparation for concentration increasing, can prepare ammonia water of which a concentrate can reach 30% just by single process, is free of influence of air temperature in production and can product the high-concentration ammonia water in all the four seasons.
Description
Technical field
The present invention relates to a kind of high density ammoniacal liquor match system and preparation technology thereof, especially relate to a kind of compact construction, automatization ammoniacal liquor system that concentration is adjustable is equipped puts.
Background technology
Raw material based on ammoniacal liquor, is applied to industrial production, agrochemical, is used as Standard Gases, preparation normal mixture etc. in the field such as chemical industry, scientific research.Reduce discharging the requirement of policy at national energy-saving under, each high-power station, steel mill and newly-built boiler factory remove the NO in flue gas
xextremely urgent.Use selective non-catalytic reduction (Selective Non-Catalytic Reduction, writes a Chinese character in simplified form SNCR) technique NOx discharge can be down to about 200mg/Nm3.Wherein just need ammoniacal liquor as reductive agent.Ammoniacal liquor orchestration is the nucleus equipment in the preparation process of reductive agent.
At present, preparation technology's flow process of ammoniacal liquor mainly contains: bubble absorption, bubble-plate column absorb and the direct absorption process of liquefied ammonia.Under standard atmosphere pressure, the concentration of ammoniacal liquor is 5 ~ 6%, and this method can only be used as tail gas recycle.Bubble-plate column absorbs this technological equipment investment height operation and easily Concerning Flooding Phenomenon occurs.The direct absorption process of liquefied ammonia, directly contacts with water with liquefied ammonia.This technique is large due to the gasification latent heat of liquefied ammonia, remove, otherwise equipment pipe easily liquid hammer occurs, the Frequent Accidents that time serious, ammonia vessel top is broken through when wanting anxious during production.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of high density ammoniacal liquor match system, adopts above-mentioned ammonia scrubber, and its system used device is few, and self-produced ammoniacal liquor comprehensive cost is low.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of high density ammoniacal liquor match system, is characterized in that: comprise liquid ammonia evaporator, ammonia preparing device and ammoniacal liquor orchestration; Liquid ammonia evaporator is provided with the first liquefied ammonia entrance, steam-in and the first ammonia outlet, ammonia preparing device is provided with the second liquefied ammonia entrance, the second ammonia outlet and ammonia inlet and ammoniacal liquor product outlet, and ammoniacal liquor orchestration is provided with ammonia entrance, de-salted water entrance and ammoniacal liquor and exports; First ammonia outlet of liquid ammonia evaporator, the second ammonia outlet of ammonia preparing device are all connected with the ammonia entrance of ammoniacal liquor orchestration; The ammoniacal liquor outlet of ammoniacal liquor orchestration is connected with the ammonia inlet of ammonia preparing device; Described ammoniacal liquor match system also comprises circulating cooling water tower, and liquid ammonia evaporator and ammoniacal liquor orchestration are equipped with the cooling water circulation pipeline be connected with circulating cooling water tower.
The ammonia that described liquid ammonia evaporator, ammonia preparing device are prepared also directly is delivered to rear method, system by pipeline.
Further, described first liquefied ammonia entrance, the second liquefied ammonia entrance are all connected with a liquid ammonia storage tank by liquefied ammonia inlet ductwork.
Described liquefied ammonia inlet ductwork is provided with successively strainer, reducing valve and the variable valve voltage-regulation voltage-stabilization for liquefied ammonia.
Further, described de-salted water entrance front end is de-salted water entrance pipe, and de-salted water entrance pipe is provided with de-salted water topping-up pump and de-salted water under meter.
Further, described cooling water circulation pipeline comprises water coolant feedwater piping and CWR road, liquid ammonia evaporator, ammoniacal liquor orchestration are equipped with cooling water inlet and cooling water outlet, and cooling water inlet is connected with water coolant feedwater piping, and cooling water outlet is connected with CWR road.Described water coolant feedwater piping is provided with cooling pump.
Further, described ammoniacal liquor product outlet connects ammoniacal liquor product outlet pipeline, and ammoniacal liquor product outlet pipeline is provided with densometer.
Preferably, described liquid ammonia evaporator is coil pipe type gasifier, and described steam-in arranges venturi-type eductors.Adopt tube exchanger, liquefied ammonia is in coil pipe, and be warm water in equipment, steam sprays in equipment through Venturi tube, heating warm water.
The preparation technology of high density ammoniacal liquor: liquefied ammonia enters liquid ammonia evaporator and an ammonia preparing device respectively by the first liquefied ammonia entrance, the second liquefied ammonia entrance, carries out liquid ammonia gasification, prepares ammonia; De-salted water enters ammoniacal liquor orchestration by de-salted water entrance; The ammonia prepared and de-salted water mix and generate ammoniacal liquor in ammoniacal liquor orchestration, and ammoniacal liquor enters again in ammonia preparing device; Liquid ammonia evaporator, ammonia preparing device run when equipment just starts simultaneously, and for liquid ammonia gasification, along with the increase of ammoniacal liquor preparation amount, the ammonia that ammonia preparing device is made reaches expection consumption gradually, and at this moment close liquid ammonia evaporator, whole system reaches balance; Liquefied ammonia and ammoniacal liquor heat exchange in ammonia preparing device, a large amount of liquid ammonia gasification, ammonia after gasification enters again in ammoniacal liquor orchestration and mixes with de-salted water, first mixed high temperature ammoniacal liquor tentatively cool through recirculated cooling water, enter again in ammonia preparing device with liquefied ammonia heat exchange, so circulation is carried out, after the ammoniacal liquor in ammonia preparing device and liquefied ammonia carry out heat exchange, produce the ammoniacal liquor finished product of low temperature, flow out from ammoniacal liquor product outlet.
The advantage that the present invention has and positively effect are: ammoniacal liquor match system of the present invention no longer needs circulation to prepare enrichment, one way can prepare concentration up to 30% ammoniacal liquor; Produce not by the impact of temperature, the four seasons all can production high density ammoniacal liquor.
Accompanying drawing explanation
Fig. 1 is the structural representation of ammoniacal liquor match system of the present invention
In figure:
A, de-salted water; B, steam; C, rear method, system; D, ammoniacal liquor finished product; 1, de-salted water topping-up pump; 2, de-salted water under meter; 3, ammoniacal liquor orchestration; 4, ammonia preparing device; 5, liquid ammonia evaporator; 6, liquid ammonia storage tank; 7, circulating water cooling tower; 8, strainer; 9, reducing valve; 10, the first liquefied ammonia entrance; 11, steam-in; 12, the first ammonia outlet; 13, the second liquefied ammonia entrance; 14, the second ammonia outlet; 15, ammoniacal liquor outlet; 16, ammonia entrance; 17, ammoniacal liquor outlet; 18, de-salted water entrance; 19, CWR road; 20, densometer; 21, water coolant feedwater piping; 22, ammoniacal liquor product outlet pipeline; 23, variable valve; 24, cooling pump.
Embodiment
A kind of high density ammoniacal liquor match system, comprises liquid ammonia evaporator 5, ammonia preparing device 4 and ammoniacal liquor orchestration 3; Liquid ammonia evaporator 5 is provided with the first liquefied ammonia entrance 10, steam-in 11 and the first ammonia outlet 12, ammonia preparing device 4 is provided with the second liquefied ammonia entrance 13, second ammonia outlet 14 and ammonia inlet 15 and ammoniacal liquor product outlet, and ammoniacal liquor orchestration 3 is provided with ammonia entrance 16, de-salted water entrance 18 exports 15 with ammoniacal liquor; First ammonia outlet 12 of liquid ammonia evaporator 5, the second ammonia outlet 14 of ammonia preparing device 4 are all connected with the ammonia entrance 16 of ammoniacal liquor orchestration 3; The ammoniacal liquor outlet 17 of ammoniacal liquor orchestration 3 is connected with the ammonia inlet 15 of ammonia preparing device 4; Ammoniacal liquor match system also comprises circulating cooling water tower 7, and liquid ammonia evaporator 5 and ammoniacal liquor orchestration 3 are equipped with the cooling water circulation pipeline be connected with circulating cooling water tower 7.
First liquefied ammonia entrance 10, second liquefied ammonia entrance 13 is all connected with a liquid ammonia storage tank 6 by liquefied ammonia inlet ductwork, liquefied ammonia inlet ductwork is provided with successively strainer 8, reducing valve 9 and variable valve 24 voltage-regulation voltage-stabilization for liquefied ammonia.
De-salted water entrance 18 front end is de-salted water entrance pipe, and de-salted water entrance pipe is provided with de-salted water topping-up pump 1 and de-salted water under meter 2.
Liquid ammonia evaporator 5 is coil pipe type gasifier, and steam-in 11 arranges venturi-type eductors.Adopt tube exchanger, liquefied ammonia is in coil pipe, and be warm water in equipment, steam sprays in equipment through Venturi tube, heating warm water.
Wherein, cooling water circulation pipeline comprises water coolant feedwater piping 21 and CWR road 19, liquid ammonia evaporator 5, ammoniacal liquor orchestration 3 are equipped with cooling water inlet and cooling water outlet, and cooling water inlet is connected with water coolant feedwater piping 21, and cooling water outlet is connected with CWR road 19.Water coolant feedwater piping 21 is provided with cooling pump 24.
Ammoniacal liquor product outlet connects ammoniacal liquor product outlet pipeline 22, and ammoniacal liquor product outlet pipeline 22 is provided with densometer 20.
Liquefied ammonia by liquid ammonia storage tank 6 after the reducing valve 9 in liquefied ammonia inlet ductwork, strainer 8 and variable valve voltage-regulation voltage-stabilization, liquid ammonia evaporator 5 and ammonia preparing device 4 is entered respectively by the first liquefied ammonia entrance 10, second liquefied ammonia entrance 13, carry out liquid ammonia gasification, prepare ammonia, then enter ammoniacal liquor orchestration 3 through the first ammonia outlet 12, second ammonia outlet 14, ammonia entrance 15; The ammonia that liquid ammonia evaporator 5, ammonia preparing device 3 are prepared also directly is delivered to rear method, system C by pipeline and is used as other purposes.
De-salted water through de-salted water topping-up pump 1 and de-salted water under meter 2, enters ammoniacal liquor orchestration 3 by de-salted water entrance 18 by de-salted water entrance pipe.
Ammonia and de-salted water mix and generate ammoniacal liquor in ammoniacal liquor orchestration 3, and ammoniacal liquor exports 17 ammonia inlets 15 by ammoniacal liquor again and enters in ammonia preparing device 4, with ammonia heat exchange.
Liquid ammonia evaporator 5, ammonia preparing device 4 run when equipment just starts simultaneously, and for liquid ammonia gasification, along with the increase of ammoniacal liquor preparation amount, the ammonia that ammonia preparing device 4 is made reaches expection consumption gradually, and at this moment close liquid ammonia evaporator 5, whole system reaches balance; Liquefied ammonia and ammoniacal liquor heat exchange in ammonia preparing device 4, a large amount of liquid ammonia gasification, ammonia after gasification enters again in ammoniacal liquor orchestration 3 and mixes with de-salted water, first mixed high temperature ammoniacal liquor tentatively cool through recirculated cooling water, enter again in ammonia preparing device 4 with liquefied ammonia heat exchange, so circulation is carried out, after the ammoniacal liquor that ammonia preparing device is 4 li and liquefied ammonia carry out heat exchange, produce the ammoniacal liquor finished product of low temperature, flow out from ammoniacal liquor product outlet;
The heat that the water-soluble releasing of ammonia is a large amount of, in ammoniacal liquor orchestration 3, shell and tube heat exchanger is set, the partial heat produced by ammoniacal liquor by recirculated cooling water is derived, then enter ammonia preparing device 4 with the ammoniacal liquor of certain temperature and carry out heat exchange, ammonia temperature is dropped to less than 25 DEG C, become by liquid ammonia gasification gaseous state ammonia to enter next stage simultaneously and carry out ammoniacal liquor preparation.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (10)
1. a high density ammoniacal liquor match system, is characterized in that: comprise liquid ammonia evaporator, ammonia preparing device and ammoniacal liquor orchestration; Liquid ammonia evaporator is provided with the first liquefied ammonia entrance, steam-in and the first ammonia outlet, ammonia preparing device is provided with the second liquefied ammonia entrance, the second ammonia outlet and ammonia inlet and ammoniacal liquor product outlet, and ammoniacal liquor orchestration is provided with ammonia entrance, de-salted water entrance and ammoniacal liquor and exports; First ammonia outlet of liquid ammonia evaporator, the second ammonia outlet of ammonia preparing device are all connected with the ammonia entrance of ammoniacal liquor orchestration; The ammoniacal liquor outlet of ammoniacal liquor orchestration is connected with the ammonia inlet of ammonia preparing device; Described ammoniacal liquor match system also comprises circulating cooling water tower, and liquid ammonia evaporator and ammoniacal liquor orchestration are equipped with the cooling water circulation pipeline be connected with circulating cooling water tower.
2. ammoniacal liquor match system according to claim 1, is characterized in that: the ammonia that described liquid ammonia evaporator, ammonia preparing device are prepared directly is delivered to rear method, system by pipeline.
3. ammoniacal liquor match system according to claim 1, is characterized in that: described first liquefied ammonia entrance, the second liquefied ammonia entrance are all connected with a liquid ammonia storage tank by liquefied ammonia inlet ductwork.
4. ammoniacal liquor match system according to claim 3, is characterized in that: described liquefied ammonia inlet ductwork is provided with strainer, reducing valve and variable valve successively.
5. ammoniacal liquor match system according to claim 1, is characterized in that: described de-salted water entrance front end is de-salted water entrance pipe, and de-salted water entrance pipe is provided with de-salted water topping-up pump and de-salted water under meter.
6. ammoniacal liquor match system according to claim 1, it is characterized in that: described cooling water circulation pipeline comprises water coolant feedwater piping and CWR road, liquid ammonia evaporator, ammoniacal liquor orchestration are equipped with cooling water inlet and cooling water outlet, cooling water inlet is connected with water coolant feedwater piping, and cooling water outlet is connected with CWR road.
7. ammoniacal liquor match system according to claim 6, is characterized in that: described water coolant feedwater piping is provided with cooling pump.
8. ammoniacal liquor match system according to claim 1, is characterized in that: described ammoniacal liquor product outlet connects ammoniacal liquor product outlet pipeline, and ammoniacal liquor product outlet pipeline is provided with densometer.
9. ammoniacal liquor match system according to claim 1, is characterized in that: described liquid ammonia evaporator is coil pipe type gasifier, and described steam-in arranges venturi-type eductors.
10. a preparation technology for high density ammoniacal liquor, is characterized in that: liquefied ammonia enters liquid ammonia evaporator and ammonia preparing device respectively by the first liquefied ammonia entrance, the second liquefied ammonia entrance, carries out liquid ammonia gasification, prepares ammonia; De-salted water enters ammoniacal liquor orchestration by de-salted water entrance; The ammonia prepared and de-salted water mix and generate ammoniacal liquor in ammoniacal liquor orchestration, and ammoniacal liquor enters again in ammonia preparing device; Liquid ammonia evaporator, ammonia preparing device run when equipment just starts simultaneously, and for liquid ammonia gasification, along with the increase of ammoniacal liquor preparation amount, the ammonia that ammonia preparing device is made reaches expection consumption gradually, and at this moment close liquid ammonia evaporator, whole system reaches balance; Liquefied ammonia and ammoniacal liquor heat exchange in ammonia preparing device, a large amount of liquid ammonia gasification, ammonia after gasification enters again in ammoniacal liquor orchestration and mixes with de-salted water, first mixed high temperature ammoniacal liquor tentatively cool through recirculated cooling water, enter again in ammonia preparing device with liquefied ammonia heat exchange, so circulation is carried out, after the ammoniacal liquor in ammonia preparing device and liquefied ammonia carry out heat exchange, produce the ammoniacal liquor finished product of low temperature, flow out from ammoniacal liquor product outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410336712.0A CN104211087B (en) | 2014-07-15 | 2014-07-15 | A kind of high concentration ammonia match system and preparation technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410336712.0A CN104211087B (en) | 2014-07-15 | 2014-07-15 | A kind of high concentration ammonia match system and preparation technology thereof |
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| CN104211087A true CN104211087A (en) | 2014-12-17 |
| CN104211087B CN104211087B (en) | 2016-08-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138062A (en) * | 2017-06-30 | 2017-09-08 | 天津普利奥能源技术发展有限公司 | A kind of novel integrated ammoniacal liquor preparing device |
| CN109821432A (en) * | 2019-03-20 | 2019-05-31 | 山东恒昌聚材化工科技股份有限公司 | The device of ammonium hydroxide is prepared with liquefied ammonia |
| CN116443891A (en) * | 2023-02-16 | 2023-07-18 | 宜兴市华瑞焚烧炉科技发展有限公司 | System for preparing ammonia water from liquid ammonia |
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|---|---|---|---|---|
| US5846386A (en) * | 1994-01-07 | 1998-12-08 | Startec Ventures, Inc. | On-site ammonia purification for semiconductor manufacture |
| CN101863495A (en) * | 2009-06-10 | 2010-10-20 | 北京九州美电科技有限公司 | Equipment for efficiently preparing ammonia water from liquid ammonia and water |
| CN103833048A (en) * | 2014-03-18 | 2014-06-04 | 长沙有色冶金设计研究院有限公司 | System and method for rapid preparation of ammonia water |
| CN204057979U (en) * | 2014-07-15 | 2014-12-31 | 天津奥利环保设备有限公司 | A kind of high density ammoniacal liquor match system |
-
2014
- 2014-07-15 CN CN201410336712.0A patent/CN104211087B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846386A (en) * | 1994-01-07 | 1998-12-08 | Startec Ventures, Inc. | On-site ammonia purification for semiconductor manufacture |
| CN101863495A (en) * | 2009-06-10 | 2010-10-20 | 北京九州美电科技有限公司 | Equipment for efficiently preparing ammonia water from liquid ammonia and water |
| CN103833048A (en) * | 2014-03-18 | 2014-06-04 | 长沙有色冶金设计研究院有限公司 | System and method for rapid preparation of ammonia water |
| CN204057979U (en) * | 2014-07-15 | 2014-12-31 | 天津奥利环保设备有限公司 | A kind of high density ammoniacal liquor match system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138062A (en) * | 2017-06-30 | 2017-09-08 | 天津普利奥能源技术发展有限公司 | A kind of novel integrated ammoniacal liquor preparing device |
| CN109821432A (en) * | 2019-03-20 | 2019-05-31 | 山东恒昌聚材化工科技股份有限公司 | The device of ammonium hydroxide is prepared with liquefied ammonia |
| CN116443891A (en) * | 2023-02-16 | 2023-07-18 | 宜兴市华瑞焚烧炉科技发展有限公司 | System for preparing ammonia water from liquid ammonia |
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| CN104211087B (en) | 2016-08-24 |
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Effective date of registration: 20160503 Address after: 300384 Tianjin Huayuan Industrial Zone (outer ring) Haitai development two Road No. 3 Applicant after: TIANJIN DINGCHEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 301700 Tianjin city Wuqing District Development Zone Fuyuan Road No. 18 511-32 (central office) Applicant before: TIANJIN OLIVE ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. |
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Address after: 300384 Tianjin Binhai high tech Zone Huayuan Industrial Zone (outer ring) Haitai development two Road No. 3 Patentee after: Tianjin auarita environmental protection equipment Co. Address before: 300384 Tianjin Huayuan Industrial Zone (outer ring) Haitai development two Road No. 3 Patentee before: TIANJIN DINGCHEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
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