CN103673663A - Method for saving vaporization energy in production of hyperpure ammonia - Google Patents
Method for saving vaporization energy in production of hyperpure ammonia Download PDFInfo
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- CN103673663A CN103673663A CN201310568489.8A CN201310568489A CN103673663A CN 103673663 A CN103673663 A CN 103673663A CN 201310568489 A CN201310568489 A CN 201310568489A CN 103673663 A CN103673663 A CN 103673663A
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Abstract
The invention discloses a method for saving vaporization energy in production of hyperpure ammonia. The method is characterized in that waste hot steam which is discharged under pressure relief by an air source water heater and a natural gas hydrogen production device is utilized, and automatic mixing is realized so as to produce hot water needed by liquid ammonia vaporization during production of hyperpure ammonia, and a general mode of producing the hot water by electric heating is replaced. Compared with the electric heating mode, the mode provided by the invention has the advantages that energy can be saved by over 80%, the production cost of the hyperpure ammonia and the market sale price of the hyperpure ammonia can be further reduced, and contribution is made to development of LCD (liquid crystal display), OLED (Organic Light Emitting Diode) and LED (light-emitting diode), and other fields of photoelectron and solar cell PV.
Description
Technical field
The present invention relates to energy-conserving and emission-cutting technology field, be particularly related to and a kind ofly with air source water heater and natural gas hydrogen production plant, rush down the waste hot steam that pressure puts and mix by automation, generation meets the needed hot water of each technique liquefied ammonia evaporation conditions in ultra-pure ammonia production, substitute and conventionally use electrical heating to produce the mode of hot water, compare with Electric heating, can save the energy more than 80%.
Background technology
Ultra-pure ammonia is mainly asked raw material (can be described as is the grain of four major trades) as semiconductor light-emitting-diode (LED), flat-panel monitor (FPD), semiconductor and crystal silicon solar batteries sheet (four major trades), for the development of raw-material quality and cost and industry, has close relationship.
The ultra-pure ammonia aborning composition of prime cost has following two aspects: the one, and primary industry liquefied ammonia, the 2nd, the heating of each process point liquefied ammonia vaporization energy in production process.In the heating of each process point liquefied ammonia of the production ultra-pure ammonia process mode of vaporizing, all adopt Electric heating both at home and abroad at present.
The shortcoming of this type of technique is: because China's electric power resource is shorter, electricity price is more expensive, and therefore, in ultra-pure ammonia process, the proportion of grid electricity fee cost is larger, and further reduction ultra-pure ammonia production cost and market sale price have been caused to difficulty; Simultaneously, the four major trades such as China's semiconductor light-emitting-diode (LED), flat-panel monitor (FPD), semiconductor and crystal silicon solar batteries sheet are further reduced to cost of goods manufactured and market sale price has been brought same difficulty, and restricted to a certain extent this four industry development.
Summary of the invention
Goal of the invention of the present invention is in order to overcome the shortcoming of above-mentioned background technology, a kind of vaporize in producing method of the energy of ultra-pure ammonia of saving is provided, during being produced, ultra-pure ammonia originally by Electric heating, changed air source heat pump water heating technology into, simultaneously, rushing down with natural gas hydrogen production plant the waste hot steam that pressure puts organically combines, by the mixing of automated system, can meet ultra-pure ammonia and produce the required hot water requirement of liquid ammonia vaporization condition in each technique, can save the energy in ultra-pure ammonia production process more than 80%.
Technical scheme of the present invention is: a kind of vaporize in producing device of the energy of ultra-pure ammonia of saving, it comprises: air source water heater, water circulating pump, hot water circuit tank, plate type heat exchanger, hot water circulating pump, steam mixer, liquid ammonia vaporization device, Automatic Temperature Control, temperature control valve (TCV) forms, the delivery port of described air source water heater upper end connects hot water circuit tank by conduit, the water inlet of lower end connects hot water circuit tank by water circulating pump, the total two-way pipeline of described hot water circuit tank, a connecting plate type heat exchanger wherein, plate type heat exchanger connects liquefied ammonia vaporizer, between described plate type heat exchanger and liquid ammonia vaporization device, be provided with and be connected valve, another pipeline connects hot water circulating pump, hot water circulating pump connects steam mixer, steam mixer connects liquefied ammonia vaporizer, described steam mixer is connected with plate type heat exchanger by an independent pipeline, this pipeline is provided with steam inlet, steam mixer below is provided with temperature control valve (TCV), described plate type heat exchanger below is provided with floss hole, at the floss hole port of export and its corresponding position, be respectively equipped with two temperature control valve (TCV)s, three described temperature control valve (TCV)s are connected with Automatic Temperature Control by three circuit respectively.
Save vaporize in the producing method of the energy of ultra-pure ammonia, the method comprises following step:
(1) ultra-pure ammonia is produced heating: adopt air source water heater to combine with natural gas hydrogen preparation bleed off waste hot steam, utilize automixte system, the hot water temperature who manufactures can be at minimum 35 ℃, within the scope of the highest 60 ℃, can automatically regulate, can meet the ultra-pure ammonia requirement of different heating point and temperature aborning;
(2) waste hot steam regulates automatically with using hot-water heating system: the pressure of natural gas hydrogen preparation bleed off waste hot steam is at minimum 0.1Mpa, and within the scope of maximum 0.8Mpa, system will regulate automatically;
(3) the two combines: when natural gas hydrogen preparation bleed off waste hot steam amount reduces and increases, air source water heater can automatically regulate between 0-100% load, produces hot water amount's needs to mate ultra-pure ammonia;
(4) hot water temperature's accurate allotment: in using hot water process, by vaporize water blender, temperature can be formulated to ± 1 ℃, guarantee that each uses the requirement of point to temperature;
Described waste hot steam regulates automatically with using hot-water heating system, is to realize minimum 35 ℃ of temperature by plate type heat exchanger, auto-control within the scope of the highest 60 ℃.
The invention has the beneficial effects as follows: utilize air source heat pump technology bleed off vapor phase in natural gas hydrogen preparation process to be combined, produce the vaporization hot water in ultra-pure ammonia production, can reduce vaporization in ultra-pure ammonia production and, with energy cost 80% left and right, design ingenious, safe and reliable, environmental protection, energy-conservation.
Accompanying drawing explanation
Fig. 1 is system schematic of the present invention;
Wherein: 1, air source water heater, 2, water circulating pump, 3, hot water circuit tank, 4, plate type heat exchanger, 5, hot water circulating pump, 6, steam mixer, 7, liquid ammonia vaporization device, 8, floss hole, 9, Automatic Temperature Control, 10, steam inlet, 11, temperature control valve (TCV), 12, temperature control valve (TCV), 13, temperature control valve (TCV).
The specific embodiment
The present embodiment is that the present embodiment is that the ultra-pure ammonia that a kind of air-source is combined with emptying vapor phase is produced energy saver, it comprises: air source water heater (1), water circulating pump (2), hot water circuit tank (3), plate type heat exchanger (4), hot water circulating pump (5), steam mixer (6), liquid ammonia vaporization device (7), Automatic Temperature Control (9), temperature control valve (TCV) forms, the water inlet of described air source water heater (1) upper end connects hot water circuit tank (3) by conduit, the delivery port on right side, lower end connects hot water circuit tank (3) by water circulating pump (2), the total two-way pipeline of described hot water circuit tank (3), a connecting plate type heat exchanger (4) wherein, plate type heat exchanger (4) connects liquefied ammonia vaporizer (7), between described plate type heat exchanger (4) and liquid ammonia vaporization device (7), be provided with and be connected valve, another pipeline connects hot water circulating pump (5), hot water circulating pump (5) connects steam mixer (6), steam mixer (6) connects liquefied ammonia vaporizer (7), described steam mixer (6) is connected with plate type heat exchanger (4) by an independent pipeline, this pipeline is provided with steam inlet (10), steam mixer (6) below is provided with temperature control valve (TCV) (11), described plate type heat exchanger (4) below is provided with floss hole (8), at floss hole (8) port of export and its corresponding position, be respectively equipped with two temperature control valve (TCV)s (12) and temperature control valve (TCV) (13), three described temperature control valve (TCV)s are connected with Automatic Temperature Control (9) by three circuit respectively.
Claims (3)
1. save vaporize in the producing device of the energy of ultra-pure ammonia for one kind, it comprises: air source water heater, water circulating pump, hot water circuit tank, plate type heat exchanger, hot water circulating pump, steam mixer, liquid ammonia vaporization device, Automatic Temperature Control, temperature control valve (TCV) forms, the delivery port that it is characterized in that described air source water heater upper end connects hot water circuit tank by conduit, the water inlet of lower end connects hot water circuit tank by water circulating pump, the total two-way pipeline of described hot water circuit tank, a connecting plate type heat exchanger wherein, plate type heat exchanger connects liquefied ammonia vaporizer, between described plate type heat exchanger and liquid ammonia vaporization device, be provided with and be connected valve, another pipeline connects hot water circulating pump, hot water circulating pump connects steam mixer, steam mixer connects liquefied ammonia vaporizer, described steam mixer is connected with plate type heat exchanger by an independent pipeline, this pipeline is provided with steam inlet, steam mixer below is provided with temperature control valve (TCV), described plate type heat exchanger below is provided with floss hole, at the floss hole port of export and its corresponding position, be respectively equipped with two temperature control valve (TCV)s, three described temperature control valve (TCV)s are connected with Automatic Temperature Control by three circuit respectively.
2. save vaporize in the producing method of the energy of ultra-pure ammonia, it is characterized in that: the method comprises following step:
(1) ultra-pure ammonia is produced heating: adopt air source water heater to combine with natural gas hydrogen preparation bleed off waste hot steam, utilize automixte system, the hot water temperature who manufactures can be at minimum 35 ℃, within the scope of the highest 60 ℃, can automatically regulate, can meet the ultra-pure ammonia requirement of different heating point and temperature aborning;
(2) waste hot steam regulates automatically with using hot-water heating system: the pressure of natural gas hydrogen preparation bleed off waste hot steam is at minimum 0.1Mpa, and within the scope of maximum 0.8Mpa, system will regulate automatically;
(3) the two combines: when natural gas hydrogen preparation bleed off waste hot steam amount reduces and increases, air source water heater can automatically regulate between 0-100% load, produces hot water amount's needs to mate ultra-pure ammonia;
(4) hot water temperature's accurate allotment: in using hot water process, by vaporize water blender, temperature can be formulated to ± 1 ℃, guarantee that each uses the requirement of point to temperature.
3. a kind of vaporize in producing method of the energy of ultra-pure ammonia of saving as claimed in claim 1, it is characterized in that: described waste hot steam regulates automatically with using hot-water heating system, to realize minimum 35 ℃ of temperature by plate type heat exchanger, auto-control within the scope of the highest 60 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310568489.8A CN103673663B (en) | 2013-11-15 | 2013-11-15 | A kind of method of saving during ultra-pure ammonia is produced the energy of vaporizing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310568489.8A CN103673663B (en) | 2013-11-15 | 2013-11-15 | A kind of method of saving during ultra-pure ammonia is produced the energy of vaporizing |
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| CN103673663A true CN103673663A (en) | 2014-03-26 |
| CN103673663B CN103673663B (en) | 2016-01-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925697A (en) * | 2014-04-15 | 2014-07-16 | 浙江金象科技有限公司 | Ultra-high purity gas heat exchanger and implementation method thereof |
Citations (5)
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| GB1144550A (en) * | 1967-12-19 | 1969-03-05 | Shell Int Research | Apparatus and process for liquefying and revaporizing gases |
| CN2588306Y (en) * | 2002-12-16 | 2003-11-26 | 江阴市海通传热技术有限公司 | High-efficient energy-saving steam melting water board type heat-exchanger machine set |
| CN101535757A (en) * | 2006-11-09 | 2009-09-16 | 株式会社日阪制作所 | Vapor contact-type heating device |
| CN202614019U (en) * | 2012-05-03 | 2012-12-19 | 天津达一琦精细化工有限公司 | Greenhouse steam waste heat utilization device |
| CN203615783U (en) * | 2013-11-15 | 2014-05-28 | 苏州金宏气体股份有限公司 | Air source and steam evacuation combined hyperpure ammonia production and energy-saving device |
-
2013
- 2013-11-15 CN CN201310568489.8A patent/CN103673663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1144550A (en) * | 1967-12-19 | 1969-03-05 | Shell Int Research | Apparatus and process for liquefying and revaporizing gases |
| CN2588306Y (en) * | 2002-12-16 | 2003-11-26 | 江阴市海通传热技术有限公司 | High-efficient energy-saving steam melting water board type heat-exchanger machine set |
| CN101535757A (en) * | 2006-11-09 | 2009-09-16 | 株式会社日阪制作所 | Vapor contact-type heating device |
| CN202614019U (en) * | 2012-05-03 | 2012-12-19 | 天津达一琦精细化工有限公司 | Greenhouse steam waste heat utilization device |
| CN203615783U (en) * | 2013-11-15 | 2014-05-28 | 苏州金宏气体股份有限公司 | Air source and steam evacuation combined hyperpure ammonia production and energy-saving device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925697A (en) * | 2014-04-15 | 2014-07-16 | 浙江金象科技有限公司 | Ultra-high purity gas heat exchanger and implementation method thereof |
| CN103925697B (en) * | 2014-04-15 | 2017-09-19 | 浙江金象科技有限公司 | Ultra-pure gases heat exchanger and its implementation |
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| CN103673663B (en) | 2016-01-20 |
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Address after: 215152 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Jinhong Gas Co.,Ltd. Address before: 215143 No. 6 Anmin Road, Panyang Industrial Park, Huangduo Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU JINHONG GAS Co.,Ltd. |