CN206837532U - The distillation system of ammonia - Google Patents
The distillation system of ammonia Download PDFInfo
- Publication number
- CN206837532U CN206837532U CN201720543368.1U CN201720543368U CN206837532U CN 206837532 U CN206837532 U CN 206837532U CN 201720543368 U CN201720543368 U CN 201720543368U CN 206837532 U CN206837532 U CN 206837532U
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- China
- Prior art keywords
- ammonia
- gas
- cooler
- outlet
- ammoniacal liquor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 266
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 133
- 238000004821 distillation Methods 0.000 title claims abstract description 14
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 72
- 238000005057 refrigeration Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 59
- 230000008676 import Effects 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000010842 industrial wastewater Substances 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 49
- 239000000047 product Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000004087 circulation Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- -1 now Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides a kind of distillation system of ammonia, and it includes rectifying column, cooler, reboiler, refrigeration compressor, and the gas outlet of refrigeration compressor connects with reboiler, and the middle and upper part of rectifying column is provided with ammoniacal liquor outlet；By way of the system can change traditional rectifying using steam, in implementation by ammonia recycle can solve the problem that using steam high energy consumption, energy utilization rate is low the problem of, the utilization that energy can be integrated, the energy consumption that production unit ammoniacal liquor is consumed can be reduced simultaneously, and the ammoniacal liquor product of various concentrations can be prepared in force, and can be applied to the purifying of ammonia, dirty ammoniacal liquor（Industrial wastewater containing ammonia）Extraction in, can finally improve the production efficiency of enterprise and reduce the production cost of enterprise.
Description
Technical field
The present invention relates to ammoniacal liquor preparation and extractive technique field, more particularly to a kind of distillation system of ammonia.
Background technology
For ammoniacal liquor as a kind of aqueous solution of ammonia, it has application in the every field such as military affairs, agricultural, industry, with
The expansion of ammoniacal liquor application field, it also generates the largely industrial wastewater containing ammoniacal liquor in production；Domestic ammoniacal liquor at present
Preparation equipment is all divided into industrial ammonia, electron level ammoniacal liquor, SILVER REAGENT ammoniacal liquor preparation facilities.
Rectifying/preparation for ammoniacal liquor, currently used way are completed in rectifying column, mainly there is bottom reboiling
Device, column plate, three, top cooler part form, and by reboiler carry out the raw material containing ammonia being thermally formed gas in implementation
The method condensed again afterwards, weak aqua ammonia enter the upflowing vapor boiled again with reboiler from the top of tower and exchanged heat due to ammonia and the boiling point of water
Different ammonias first evaporate, and the ammonia vapor of the high concentration after evaporation is condensed into quilt after the ammoniacal liquor of high concentration in evaporator overhead condenser
Discharge, finished product ammoniacal liquor is obtained, and bottom reboiler discharge reaches the water of environment protection emission；At present, the method uses steam to boiling again
Device is heated and is heat-treated, and because its steam has cheap characteristic, the method is still using always, still, using above-mentioned side
The shortcomings that method maximum is that the heat utilization rate of steam is low, in order to which the ammoniacal liquor for producing quantitative needs to consume substantial amounts of steam, and steam
Utilization rate low the problem of bringing energy waste, most cause that the above method has high energy consumption, energy conversion rate is low, is produced at last
The shortcomings that this is high, this problem are unfavorable for the long-run development of enterprise and the lifting of product quality for enterprise.
And for the caused industrial wastewater containing ammonia in industrial circle, current way is using conventional soda acid
The mode of neutralization is directly discharged into earth's surface after neutralizing, and for some enterprises, produce containing for the ammonia in the industrial wastewater brought
Measure it is larger, if the mode for simply using acid-base neutralization discharges the waste and the rise of entreprise cost for being no different and causing resource, still
If the ammonia in such waste water is extracted, it is a great riches to be no different for enterprise, meanwhile, can also solve enterprise
The problem of cost is high, the wasting of resources.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, adapts to real needs, there is provided a kind of distillation system of ammonia.
In order to realize the purpose of the present invention, the technical solution adopted in the present invention is：
A kind of distillation system of ammonia is designed, it includes：
One middle part and/or middle and upper part are provided with the rectifying column of import, treat the stoste containing liquefied ammonia/gas ammonia/Primordial Qi warp of rectifying
Import enters in rectifying column；
Cooler with gas feed and gas vent, the top of rectifying column connect with the gas feed of cooler；
Reboiler with heat source import and thermal source outlet, the gas outlet of the reboiler connect with the bottom of rectifying column；
One refrigeration compressor, the gas outlet of refrigeration compressor connect with the thermal source air inlet of reboiler, refrigeration compressor
Air inlet and the cooling source outlet on cooler；
One throttle expansion valve, the import of throttle expansion valve connect with the thermal source outlet of reboiler, the outlet of throttle expansion valve
With the cooling source inlet communication of cooler；
Liquefied ammonia/gas ammonia provides source, and when providing source for liquefied ammonia, liquefied ammonia provides inlet communication of the source also with throttle expansion valve,
When providing source for gas ammonia, gas ammonia provides source and connected with the air inlet of refrigeration compressor, is formed after being compressed by refrigeration compressor
Normal temperature high voltage gas ammonia enter reboiler in；
Preferably, the cooler is arranged at the top of rectifying column, and the gas feed of cooler is communicated in rectifying column
Inner chamber, the gas vent of cooler are arranged at the top of the cooler, and the reboiler is arranged at the bottom of rectifying column, and three
It is integrally formed.
Preferably, in addition to a gas-liquid separator, the thermal source outlet of reboiler and the first inlet communication of gas-liquid separator,
The mixture containing gaseous state and liquefied ammonia of thermal source outlet discharge through reboiler enters in gas-liquid separator, the gas-liquid separator
Gas discharge outlet connected with the air inlet of refrigeration compressor；The liquid outlet of gas-liquid separator is by pipeline communication in cooler
On cooling source import.
Preferably, the cooling source outlet of the cooler and the second inlet communication on gas-liquid separator.
Preferably, in addition to a liquefied ammonia cooler, the gas liquid outlet of liquefied ammonia cooler is by flowing expansion valve and gas-liquid separation
First inlet communication of device；The thermal source outlet of reboiler and the inlet communication of liquefied ammonia cooler, the condensate liquid on liquefied ammonia cooler
Import provides source with the condensate liquid of outside and is connected.
Preferably, in addition to a finished product tank used for storing ammonia, the ammoniacal liquor outlet of the rectifying column middle and upper part pass through pipeline communication
In finished product tank used for storing ammonia, the top of the finished product tank used for storing ammonia is provided with blast pipe, in addition to a dirty ammoniacal liquor storage pool, the exhaust
The port of export of pipe is located at below the liquid level in dirty ammoniacal liquor storage pool.
Preferably, a dirty ammoniacal liquor preheater, the dirt are connected with by a pump on the leakage fluid dram of the dirty ammoniacal liquor storage pool
The liquid outlet of ammoniacal liquor preheater is communicated in the import of rectifying column middle and upper part；The liquid outlet for boiling liquid bottom again passes through pipeline
Connected with the heat source import on dirty ammoniacal liquor preheater.
The beneficial effects of the present invention are：
By way of this method and system can change traditional rectifying using steam, pass through the circulation to ammonia in implementation
Using can solve the problem that using steam high energy consumption, energy utilization rate is low the problem of, the utilization that energy can be integrated, while can
To reduce the energy consumption that production unit ammoniacal liquor is consumed, and the ammoniacal liquor product of various concentrations can be prepared in force, and can answer
For the purifying of ammonia, dirty ammoniacal liquor（Industrial wastewater containing ammonia）Extraction in, can finally improve production efficiency and the reduction of enterprise
The production cost of enterprise.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of the present invention；
Fig. 2 is the application structure schematic diagram of the present invention；
In figure：1. rectifying column;2. import;3. ammoniacal liquor outlet;4. reboiler;5. heat source import;6. thermal source outlet;7. liquid
Body exports;8. cooler;9. cooling source import;10. cooling source exports;11. gas vent;12. refrigeration compressor;13. gas-liquid
Separator;14. gas discharge outlet;15. the second import;16. throttle expansion valve;17. liquefied ammonia cooler;18. condensate liquid import;
19. the import of liquefied ammonia cooler;20. condensate liquid provides source;21. dirty ammoniacal liquor storage pool;22. pump;23. dirty ammoniacal liquor preheater;24.
Heat source import;25. the liquid outlet of dirty ammoniacal liquor preheater;26. waste water pump；27. finished product tank used for storing ammonia；28. blast pipe.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples：
Embodiment 1：A kind of rectificating method of ammonia, reference can be made to Fig. 1, this method is applied to include reboiler 4, the and of cooler 8
In the system that the rectifying column 1 that inside is provided with column plate is formed, in implementation, reboiler 4 is communicated in the bottom of rectifying column 1, and cooler 8 connects
The top of rectifying column 1 is passed through, treats that stoste/Primordial Qi containing liquefied ammonia/gas ammonia of rectifying is entered from the middle part of rectifying column or/and middle and upper part
Enter in tower；This method it comprise the following steps：
1）It is inputted using high normal pressure and temperature gas ammonia as thermal source in reboiler, using HTHP gas ammonia in reboiler
The stoste containing ammonia boiled processing again, due to ammonia boiling point be -33.5 DEG C, can be by reboiler by this high normal pressure and temperature gas ammonia
In stoste（Waste water containing ammonia or the ammoniacal liquor for treating rectifying）In ammonia carry out gasification and be translated into gaseous ammonia and along rectifying column
Move up；
2）Through step 1）By the high normal pressure and temperature liquefied ammonia that the thermal source outlet of the thermal source outlet of reboiler 4 is gone out through throttling after processing
Formed after expansion low-pressure low-temperature liquefied ammonia entered by cooling source import it is to the ammonia vapor that is formed in rectifying column that its is cold in cooler
Coagulate for ammoniacal liquor, now, the temperature for the high normal pressure and temperature liquefied ammonia gone out by reboiler thermal source outlet is entered relative into reboiler thermal source
Temperature before mouthful is relatively low, now, can be to being formed after reboiler boils again in cooler by being entered to after throttling expansion
Stronger gaseous ammonia condensed, the ammoniacal liquor that is formed can be discharged by the ammoniacal liquor outlet 3 on rectifying column after then condensing（This process
In, in rectifying column, the rising that enters from the weak aqua ammonia that import enters in rectifying column from the top of tower and boiled again with reboiler
Steam is exchanged heat because the boiling point difference ammonia of ammonia and water first evaporates, and the ammonia vapor of the high concentration after evaporation cools down at top
It can be discharged after the ammoniacal liquor of high concentration is condensed into device, so as to obtain finished product ammoniacal liquor, and bottom reboiler discharge reaches environmental protection
The water of discharge）；On-condensible gas in this step（Nitrogen etc.）Discharged by the gas vent 8 of cooler 8；
Then, the low-temp low-pressure gas ammonia formed after the condensation exported away through the cooling source of cooler 8 enters refrigeration compressor
It is again introduced into 12 after formation HTHP gas ammonia by the heat source import of reboiler in reboiler 4 and is boiled shape in processing again to it
Into circulation, it is noted that in above-mentioned steps, if the ammonia gaseous state that is exported away through cooler cooling source and liquid is mixed
Compound enters in refrigeration compressor after need to passing it through ammonia liquor separator.
3）Repeat the above steps 1）To 3）Can continuous production ammoniacal liquor.
And, it is necessary to regularly supplement the ammonia boiled again to reboiler in processing cycle pipeline in above-mentioned steps are carried out,
Meanwhile treat that stoste/Primordial Qi containing liquefied ammonia/gas ammonia of rectifying can be entered in rectifying column by the import 2 at the middle part of rectifying column 1 and mended
Fill, and if desired producing the higher ammoniacal liquor product of purity needs to repeat the above steps 1）To 3）It can pass through ammonia after several circulations
Water outlet 3 discharges ammoniacal liquor.
By this design, by the way of ammonia substitution conventional vapor heats to reboiler, its energy utilization rate is higher,
Energy consumption is lower, can be recycled in implementation, and compared with traditional approach, the production efficiency of the design is significantly carried
Rise, enterprise's production cost can be reduced significantly.
Embodiment 2, a kind of distillation system of ammonia, the system are used to realizing method described in above-described embodiment 1, the system it
Including：One middle part and/or middle and upper part are provided with the rectifying column 1 of import 2, and the middle and upper part of rectifying column is additionally provided with an ammoniacal liquor outlet 3,
Treat that stoste/Primordial Qi containing liquefied ammonia/gas ammonia of rectifying enters in rectifying column through import 2.
Also include the cooler 8 with gas feed and gas vent 11, the top of rectifying column 1 and the gas of cooler enter
Mouth connection；Also include the reboiler 4 with heat source import 5 and thermal source outlet 6, the gas outlet of the reboiler 4 and the bottom of rectifying column
Portion connects；The cooler 8 in the design is arranged at the top of rectifying column 1, and the gas feed of cooler 8 is communicated in rectifying
The inner chamber of tower 1, the gas vent 11 of cooler 8 is arranged at the top of the cooler 8, and described reboiler 4 is arranged at rectifying
The bottom of tower 1, and three in one is formed.
Also include a refrigeration compressor 12, the gas outlet of the refrigeration compressor 12 connects with the thermal source air inlet 5 of reboiler 4
It is logical, in addition to a gas-liquid separator 13, the gas discharge outlet 14 of the gas-liquid separator and the air inlet company of refrigeration compressor 12
It is logical；The liquid outlet of gas-liquid separator by pipeline communication in the cooling source import 9 on cooler 8, the cooler 8 it is cold
But source outlet 10 connects with the second import 15 on gas-liquid separator 13.
Also include a liquefied ammonia cooler 17, the liquefied ammonia cooler 17 is obliquely installed, positioned at the liquefied ammonia cooler 17 of low side
Gas liquid outlet pass through the first inlet communication of a throttle expansion valve 16 and gas-liquid separator 13；The thermal source outlet 6 of reboiler with
The import 19 of liquefied ammonia cooler connects, and the condensate liquid import 18 on liquefied ammonia cooler 17 provides source with outside condensate liquid（Circulation
Cooling tower）Connection.
Also include a finished product tank used for storing ammonia 27, the ammoniacal liquor outlet 3 of the middle and upper part of rectifying column 1 by pipeline communication in into
Product tank used for storing ammonia 27, the top of the finished product tank used for storing ammonia 27 is provided with blast pipe 28, in addition to a dirty ammoniacal liquor storage pool 21, described
The port of export of blast pipe is located at below the liquid level in dirty ammoniacal liquor storage pool 21；Pass through on the leakage fluid dram of the dirty ammoniacal liquor storage pool 21
One pump 22 is connected with a dirty ammoniacal liquor preheater 23, and the liquid outlet of the dirty ammoniacal liquor preheater 23 is communicated in rectifying column 1
In the import 2 in portion；The liquid outlet for boiling liquid bottom again is connected by pipeline with the heat source import 24 on dirty ammoniacal liquor preheater.
In implementation, illustrated by taking the ammonia extraction in dirty ammoniacal liquor as an example, according to the method described in embodiment 1, ammonia enters
Enter in the circulation line that refrigeration compressor 12 is formed, the normal temperature high voltage gas ammonia formed by refrigeration compressor 12（Temperature is T1）Enter
Enter in reboiler and processing is boiled again to the stoste in reboiler；Now, the dirty ammoniacal liquor in dirty ammoniacal liquor storage pool 21 passes through import
Into in rectifying column, during this, in rectifying column, enter simultaneously from the dirty ammoniacal liquor that import enters in rectifying column from the top of tower
Exchanged heat with the upflowing vapor that reboiler boils again because the boiling point difference ammonia of ammonia and water first evaporates, the high concentration after evaporation
Ammonia vapor can be discharged after the ammoniacal liquor of high concentration is condensed into the cooler of top, so as to obtain finished product ammoniacal liquor, and bottom
Reboiler, which is discharged, reaches the water of environment protection emission, the on-condensible gas in this step（Nitrogen etc.）By the row of gas vent 8 of cooler 8
Go out.
Thermal source outlet 6 through reboiler go out for normal temperature high voltage liquefied ammonia（Temperature is T2, and T1 is more than T2）, then into liquid
This normal temperature high voltage liquefied ammonia is condensed in ammonia cooler 17, then forms cryogenic high pressure liquefied ammonia（Temperature T3, T3 are less than T2）, it
This cryogenic high pressure liquefied ammonia afterwards（Temperature T3）Low-temp low-pressure liquefied ammonia and gas ammonia are formed after throttle expansion valve（Temperature T4, T4 are less than etc.
In T3）, afterwards into the separation of progress gas ammonia and liquefied ammonia in gas-liquid separator 13.
The low-temp low-pressure liquefied ammonia formed through gas-liquid separator 13 enters in cooler 8 to highly concentrated through what is formed at the top of rectifying column
Degree gas ammonia carries out liquefaction condensation and is translated into finished product ammoniacal liquor, and exports 10 liquefied ammonia and gas ammonia gone out through the cooling source of cooler 8
Mixture is again introduced into the separation that gaseous state and liquid are carried out in gas-liquid separator；And the low temperature formed after gas-liquid separator 13 is low
The gas ammonia of pressure, which is again introduced into refrigeration compressor 12, forms the high next circulation of normal pressure and temperature gas ammonia progress to continue to enter reboiler
Row boils processing again.
While above-mentioned action is carried out, dirty ammoniacal liquor by import 2 enter rectifying column middle part and with the gasification of rising
Gas ammonia afterwards is contacted, and gasify after gas ammonia rise in cooler 8 after can be cooled device be condensed into high concentration ammoniacal liquor to
Under drop and can be expelled to through ammoniacal liquor outlet in the finished product tank used for storing ammonia 26 at rear, now, into finished product tank used for storing ammonia 26
Appoint and so contain a small amount of gas ammonia, now, gas ammonia can be again introduced into molten in dirty ammoniacal liquor storage pool 21 by blast pipe 28 and pipeline
In liquid；And when carrying out above-mentioned action, the liquid for not containing ammonia after being handled in reboiler can be through the liquid on the reboiler
The discharge of body outlet 7, now, the waste water discharged through liquid outlet 7 contains certain heat energy, at this point it is possible to this waste water be passed through useless
Water pump 26 is passed through in dirty ammoniacal liquor preheater 23 carries out the pre-heat treatment to the dirty ammoniacal liquor that enters in rectifying column 1, can be with by this mode
The temperature of dirty ammoniacal liquor is improved, can be as early as possible in rectifying column is entered ammonia therein be gasified, also allows for reboiler to dirt
Ammonia in ammoniacal liquor is gasified, it is possible to increase the comprehensive utilization ratio of the energy and the efficiency for improving production, passes through said process
Complete the extraction operation to the ammonia in dirty ammoniacal liquor.
What embodiments of the invention were announced is preferred embodiment, but is not limited thereto, the ordinary skill people of this area
Member, easily according to above-described embodiment, understand the spirit of the present invention, and make different amplification and change, but as long as not departing from this
The spirit of invention, all within the scope of the present invention.
Claims (7)
1. a kind of distillation system of ammonia, it is characterised in that it includes：
One middle part and/or middle and upper part are provided with the rectifying column of import, treat stoste/Primordial Qi containing liquefied ammonia/gas ammonia of rectifying through import
Into in rectifying column；
Cooler with gas feed and gas vent, the top of rectifying column connect with the gas feed of cooler；
Reboiler with heat source import and thermal source outlet, the gas outlet of the reboiler connect with the bottom of rectifying column；
One refrigeration compressor, the gas outlet of refrigeration compressor connect with the thermal source air inlet of reboiler, the air inlet of refrigeration compressor
Mouth and the cooling source outlet on cooler；
One throttle expansion valve, the import of throttle expansion valve connect with the thermal source outlet of reboiler, the outlet of throttle expansion valve with it is cold
But the cooling source inlet communication of device；
Liquefied ammonia/gas ammonia provides source, when providing source for liquefied ammonia, inlet communication of the liquefied ammonia offer source also with throttle expansion valve, when for
When gas ammonia provides source, gas ammonia provides source and connected with the air inlet of refrigeration compressor, and what is formed after being compressed by refrigeration compressor is normal
Warm high pressure gas ammonia enters in reboiler.
2. the distillation system of ammonia as claimed in claim 1, it is characterised in that：The cooler is arranged at the top of rectifying column,
And the gas feed of cooler is communicated in the inner chamber of rectifying column, the gas vent of cooler is arranged at the top of the cooler, institute
The bottom that reboiler is arranged at rectifying column is stated, and three in one is formed.
3. the distillation system of ammonia as claimed in claim 2, it is characterised in that：Also include a gas-liquid separator, the heat of reboiler
Source exports the first inlet communication with gas-liquid separator, the mixing containing gaseous state and liquefied ammonia of the thermal source outlet discharge through reboiler
Thing enters in gas-liquid separator, and the gas discharge outlet of the gas-liquid separator connects with the air inlet of refrigeration compressor；Gas-liquid point
From device liquid outlet by pipeline communication in the cooling source import on cooler.
4. the distillation system of ammonia as claimed in claim 3, it is characterised in that：Cooling source outlet and the gas-liquid point of the cooler
From the second inlet communication on device.
5. the distillation system of ammonia as claimed in claim 4, it is characterised in that：Also include a liquefied ammonia cooler, liquefied ammonia cooler
Gas liquid outlet by flowing the first inlet communication of expansion valve and gas-liquid separator；The thermal source outlet of reboiler and liquefied ammonia cooler
Inlet communication, the condensate liquid import on liquefied ammonia cooler provides source with the condensate liquid of outside and is connected.
6. the distillation system of ammonia as claimed in claim 5, it is characterised in that：Also include a finished product tank used for storing ammonia, the rectifying
The ammoniacal liquor outlet of tower middle and upper part is provided with exhaust by pipeline communication in finished product tank used for storing ammonia, the top of the finished product tank used for storing ammonia
Pipe, in addition to a dirty ammoniacal liquor storage pool, the port of export of the blast pipe are located at below the liquid level in dirty ammoniacal liquor storage pool.
7. the distillation system of ammonia as claimed in claim 6, it is characterised in that：Pass through on the leakage fluid dram of the dirty ammoniacal liquor storage pool
One pump is connected with a dirty ammoniacal liquor preheater, and the liquid outlet of the dirty ammoniacal liquor preheater is communicated in the import positioned at rectifying column middle and upper part
On；The liquid outlet for boiling liquid bottom again is connected by pipeline with the heat source import on dirty ammoniacal liquor preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720543368.1U CN206837532U (en) | 2017-05-17 | 2017-05-17 | The distillation system of ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720543368.1U CN206837532U (en) | 2017-05-17 | 2017-05-17 | The distillation system of ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206837532U true CN206837532U (en) | 2018-01-05 |
Family
ID=60795324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720543368.1U Withdrawn - After Issue CN206837532U (en) | 2017-05-17 | 2017-05-17 | The distillation system of ammonia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206837532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964174A (en) * | 2017-05-17 | 2017-07-21 | 万和昌 | Rectifying/the method for purification and system of ammonia |
| CN111389169A (en) * | 2020-02-27 | 2020-07-10 | 大连中鼎化学有限公司 | Device and method for recovering high-purity ammonia from compound semiconductor tail gas |
-
2017
- 2017-05-17 CN CN201720543368.1U patent/CN206837532U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964174A (en) * | 2017-05-17 | 2017-07-21 | 万和昌 | Rectifying/the method for purification and system of ammonia |
| CN106964174B (en) * | 2017-05-17 | 2024-02-13 | 万和昌 | Method and system for rectifying/purifying ammonia |
| CN111389169A (en) * | 2020-02-27 | 2020-07-10 | 大连中鼎化学有限公司 | Device and method for recovering high-purity ammonia from compound semiconductor tail gas |
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