CN103090611B - A kind of liquid argon cooling capacity recovering method and device - Google Patents
A kind of liquid argon cooling capacity recovering method and device Download PDFInfo
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- CN103090611B CN103090611B CN201110335799.6A CN201110335799A CN103090611B CN 103090611 B CN103090611 B CN 103090611B CN 201110335799 A CN201110335799 A CN 201110335799A CN 103090611 B CN103090611 B CN 103090611B
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- water
- argon
- liquid argon
- chilled water
- vaporization
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Abstract
The present invention relates to oxygen mechanism argon production field, particularly relate to a kind of liquid argon cooling capacity recovering method and device, adopt the normal temperature recirculated water of 32-35 DEG C as the heating source of liquid argon water bath type vaporizer, normal temperature circulating water temperature is made to drop to 5-6 DEG C in liquid argon water bath type vaporizer after liquid argon vaporization, namely can be used for the chilled water of cooling-air in air cooling compressor, its condition realized is as the cold Q after liquid argon vaporization
alwaysbe greater than the thermal discharge Q of chilled water
water is put, the cold wherein after liquid argon vaporization: Q
always=Q
dive+ Q
aobvious=M
argon(h
2-h
1)+M
argon(h
3-h
2); The thermal discharge of normal-temperature water: Q
water is put=M
waterr (t
2-t
1).Compared with prior art, the invention has the beneficial effects as follows: technique is simple, save the investment of floor space and project, cancel freezing unit, steam saving, reaches the object of energy-saving and emission-reduction, and the vaporization of liquid argon is continuous print, liquid argon and water are all continuous operations, can ensure the normal operation of a whole set of oxygenerator.
Description
Technical field
The present invention relates to oxygen mechanism argon production field, particularly relate to a kind of liquid argon cooling capacity recovering method and device.
Background technology
The argon gas produced of oxygenerator is by liquid argon through steam with water is heat vaporized obtains, and the boiling point of argon gas is-185 DEG C, need pass into steam in water-bath type liquid argon vaporization device, and water-bath type liquid argon vaporization device needs to consume a large amount of steam.
The air themperature technological requirement that oxygenerator enters molecular sieve is 10 DEG C, the pressure-air cooling that air compressor machine exports by general cooling water is to 10 DEG C, in cooling water, some is chilled water, chilled water temperature 5-6 DEG C is obtained circulating water by freezing unit, freezing unit power consumption is large, if the low-temperature receiver of cold as chilled water of liquid argon can be made, enter the thermal source of chilled water as vaporization liquid argon of air cooling tower, the problem of the cold waste of liquid argon vaporization can be solved on the one hand, also electric energy can be saved on the one hand, without Steam Heating, save the thermal energy consumption in producing.The argon gas of iron and steel enterprise is constantly vaporized by liquid argon and without interruption, and this is that the cold reclaiming liquid argon provides condition.
Summary of the invention
The object of this invention is to provide a kind of liquid argon cooling capacity recovering method and device, overcome the deficiencies in the prior art, in conjunction with traditional oxygenerator flow process, both ensured the indices of oxygenerator product, the energy consumption of whole flow process can be reduced again.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of liquid argon cooling capacity recovering method, adopt the normal temperature recirculated water of 32-35 DEG C as the heating source of liquid argon water bath type vaporizer, normal temperature circulating water temperature is made to drop to 5-6 DEG C in liquid argon water bath type vaporizer after liquid argon vaporization, namely can be used for the chilled water of cooling-air in air cooling compressor, its condition realized is as the cold Q after liquid argon vaporization
alwaysbe greater than the thermal discharge Q of chilled water
water is puttime, can meet the technological requirement of oxygenerator, its Mathematical Modeling is as follows:
Cold after liquid argon vaporization: Q
always=Q
dive+ Q
aobvious=M
argon(h
2-h
1)+M
argon(h
3-h
2);
The thermal discharge of chilled water: Q
water is put=M
waterr (t
2-t
1);
In formula: M
argonthe quality of-liquid argon, Kg; h
1-liquid argon at the enthalpy of boiling point, Kcal/Kg; h
2-gaseous state argon at the enthalpy of boiling point, Kcal/Kg; h
3-argon gas enthalpy at normal temperatures, Kcal/Kg; M
waterthe quality of-chilled water, Kg; The specific heat capacity of r-chilled water, J/Kg DEG C; t
1the inflow temperature of-chilled water, DEG C; t
2the leaving water temperature of-chilled water, DEG C.
A kind of liquid argon cold quantity recovery device that said method adopts, comprise liquid argon water bath type vaporizer, water cooling tower, air cooling compressor and chilled water pump, waterpipe one is provided with between water cooling tower delivery port one and air cooling compressor normal temperature water inlet, be provided with waterpipe two between water cooling tower delivery port two and liquid argon water bath type vaporizer normal-temperature water entrance, the chilled water outlet of liquid argon water bath type vaporizer is connected with air cooling compressor chilled water inlet through chilled water pump.
Compared with prior art, the invention has the beneficial effects as follows: overcome technology prejudice, technique is simple, save the investment of floor space and project, cancel freezing unit, steam saving, reach the object of energy-saving and emission-reduction, the vaporization of liquid argon is continuous print, and liquid argon and water are all continuous operations, can ensure the normal operation of a whole set of oxygenerator.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention process frame chart.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
See Fig. 1, it is a kind of liquid argon cold quantity recovery device embodiment of the present invention process frame chart, comprise liquid argon water bath type vaporizer, water cooling tower, air cooling compressor and chilled water pump, water cooling tower has two-way input, a road connects dirty nitrogen, a road connects recirculated water, waterpipe one is provided with between water cooling tower delivery port one and air cooling compressor normal temperature water inlet, air compressor machine is connected with air cooling compressor through air pipe line, and the cold air that air cooling compressor exports removes molecular sieve adsorber, the water of output goes circulation through waterpipe three;
The chilled water outlet of liquid argon water bath type vaporizer is connected with air cooling compressor chilled water inlet through chilled water pump, the waterpipe two of DN150 is provided with between water cooling tower delivery port two and liquid argon water bath type vaporizer normal-temperature water entrance, waterpipe two is provided with circulating pump, 32-35 DEG C of water outlet of water cooling tower delivers in liquid argon water bath type vaporizer and liquid argon carries out Cooling capacity exchanging, liquid argon vaporization is argon gas, for endothermic process, when the temperature of water drops to 5-6 DEG C, deliver to cooling-air in air cooling compressor by chilled water pump, wherein chilled water pipeline needs cold insulation facility.
With certain steel mill 35000Nm
3/ h oxygenerator is example, and the freezing unit water yield is M
water=120t/h, inflow temperature t
1=20 DEG C, leaving water temperature t
2=6 DEG C, temperature difference t=20-6=14 DEG C, the total amount of heat that chilled water is released is:
Q
water is put==M
waterr (t
2-t
1)=120 × 1000 × (20-6)=1680000Kcal/h;
The total amount of heat absorbed in liquid argon vaporization is, liquid argon amount M
argon=2000Nm
3/ h=2780Kg, pressure is P=2.94Mpa, and temperature is T
1=138 ° of K, T
2=303 ° of K, the T-S looking into argon gas schemes h
1=1250Kcal/Kg (T
1=138 ° of K liquid conditions); h
2=2200Kcal/Kg (T
1=138 ° of K gaseous states); h
3=3060Kcal/Kg (T
2=303 ° of K gaseous states);
The latent heat of vaporization is: Q
dive=M
argon× (h
2-h
1)=2780 × (2200-1250)=2641000Kcal/h;
Sensible heat calculates Q
aobvious=M
argon× (h
3-h
2)=2780 × (3060-2200)=2390800Kcal/h;
Q
always=Q
dive+ Q
aobvious=2641000+2390800=5031800Kcal/h;
Q
always> Q
water is put, therefore only need introduce component loops water, after cancelling freezing unit, still can meet oxygenerator technique needs.
Claims (1)
1. a liquid argon cooling capacity recovering method, it is characterized in that, the chilled water outlet of liquid argon water bath type vaporizer is connected with air cooling compressor chilled water inlet through chilled water pump, the waterpipe two of DN150 is provided with between water cooling tower delivery port two and liquid argon water bath type vaporizer normal-temperature water entrance, waterpipe two is provided with circulating pump, 32-35 DEG C of water outlet of water cooling tower delivers in liquid argon water bath type vaporizer and liquid argon carries out Cooling capacity exchanging, liquid argon vaporization is argon gas, for endothermic process, when the temperature of water drops to 5-6 DEG C, deliver to cooling-air in air cooling compressor by chilled water pump; The condition realized is as the cold Q after liquid argon vaporization
alwaysbe greater than the thermal discharge Q of chilled water
water is puttime, can meet the technological requirement of oxygenerator, its Mathematical Modeling is as follows:
Cold after liquid argon vaporization: Q
always=Q
dive+ Q
aobvious=M
argon(h
2-h
1)+M
argon(h
3-h
2);
The thermal discharge of chilled water: Q
water is put=M
waterr (t
2-t
1);
In formula: M
argonthe quality of-liquid argon, Kg; h
1-liquid argon at the enthalpy of boiling point, Kcal/Kg; h
2-gaseous state argon at the enthalpy of boiling point, Kcal/Kg; h
3-argon gas enthalpy at normal temperatures, Kcal/Kg; M
waterthe quality of-chilled water, Kg; The specific heat capacity of r-chilled water, J/Kg DEG C; t
1the inflow temperature of-chilled water, DEG C; t
2the leaving water temperature of-chilled water, DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110335799.6A CN103090611B (en) | 2011-10-28 | 2011-10-28 | A kind of liquid argon cooling capacity recovering method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110335799.6A CN103090611B (en) | 2011-10-28 | 2011-10-28 | A kind of liquid argon cooling capacity recovering method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103090611A CN103090611A (en) | 2013-05-08 |
| CN103090611B true CN103090611B (en) | 2015-12-09 |
Family
ID=48203499
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110335799.6A Active CN103090611B (en) | 2011-10-28 | 2011-10-28 | A kind of liquid argon cooling capacity recovering method and device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972934A (en) * | 2016-07-13 | 2016-09-28 | 浙江智海化工设备工程有限公司 | Liquefying device for achieving liquid argon cold energy recovery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2766203Y (en) * | 2005-04-15 | 2006-03-22 | 林福粦 | Air separator for recovering cold energy of liquefied natural gas |
| CN101476806A (en) * | 2009-01-24 | 2009-07-08 | 中国电子系统工程第二建设有限公司 | Low-temperature liquid vaporization cooling capacity recovery utilization system |
| CN201297871Y (en) * | 2008-12-09 | 2009-08-26 | 苏州市金宏气体有限公司 | Liquid gas vaporization cold recovery and recycle system |
| CN102030314A (en) * | 2010-11-12 | 2011-04-27 | 杜金明 | Oxygen generator |
| CN202302729U (en) * | 2011-10-28 | 2012-07-04 | 鞍钢集团工程技术有限公司 | Liquid argon cold quantity recovery device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19810536A1 (en) * | 1998-03-11 | 1999-09-16 | Linde Ag | Water bath evaporator for liquefied gases |
-
2011
- 2011-10-28 CN CN201110335799.6A patent/CN103090611B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2766203Y (en) * | 2005-04-15 | 2006-03-22 | 林福粦 | Air separator for recovering cold energy of liquefied natural gas |
| CN201297871Y (en) * | 2008-12-09 | 2009-08-26 | 苏州市金宏气体有限公司 | Liquid gas vaporization cold recovery and recycle system |
| CN101476806A (en) * | 2009-01-24 | 2009-07-08 | 中国电子系统工程第二建设有限公司 | Low-temperature liquid vaporization cooling capacity recovery utilization system |
| CN102030314A (en) * | 2010-11-12 | 2011-04-27 | 杜金明 | Oxygen generator |
| CN202302729U (en) * | 2011-10-28 | 2012-07-04 | 鞍钢集团工程技术有限公司 | Liquid argon cold quantity recovery device |
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| CN103090611A (en) | 2013-05-08 |
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Effective date of registration: 20190122 Address after: No. 573 Construction Avenue, Tiexi District, Anshan City, Liaoning Province, 114000 Patentee after: Angang Energy Technology Co., Ltd. Address before: 114000 No. 1 Huanggang Road, Tiexi District, Anshan City, Liaoning Province Patentee before: Ansteel Engineering Technology Corporation Limited |
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