CN109612169A - A kind of carbon dioxide refrigeration system ammonia liquid separation processing method - Google Patents
A kind of carbon dioxide refrigeration system ammonia liquid separation processing method Download PDFInfo
- Publication number
- CN109612169A CN109612169A CN201811532152.0A CN201811532152A CN109612169A CN 109612169 A CN109612169 A CN 109612169A CN 201811532152 A CN201811532152 A CN 201811532152A CN 109612169 A CN109612169 A CN 109612169A
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- China
- Prior art keywords
- ammonia
- carbon dioxide
- refrigerating system
- ammoniacal liquor
- transfer pipeline
- Prior art date
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 385
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 324
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 190
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 160
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 160
- 238000005057 refrigeration Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 title claims description 11
- 238000000926 separation method Methods 0.000 title description 13
- 238000003672 processing method Methods 0.000 title description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 209
- 238000000034 method Methods 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 27
- 238000007906 compression Methods 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 241000790917 Dioxys <bee> Species 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 abstract description 15
- 238000004134 energy conservation Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 229960004424 carbon dioxide Drugs 0.000 description 129
- 239000007789 gas Substances 0.000 description 63
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 235000011089 carbon dioxide Nutrition 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000000315 cryotherapy Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012595 freezing medium Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/23—Separators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention provides a kind of carbon dioxide refrigerating system ammoniacal liquor method for separating and processing applied to carbon dioxide refrigerating system ammoniacal liquor processing technology field, the processing step of the carbon dioxide refrigerating system ammoniacal liquor method for separating and processing are as follows: after carbon dioxide refrigerating system starting, the gas ammonia of carbon dioxide refrigerating system (3) output enters ammonia liquor separator ontology (1) by transfer pipeline I (2)；Gas ammonia enters transfer pipeline II (4), is transported in gas ammonia liquefaction compression member (5) and is compressed, converts liquefied ammonia for gas ammonia；The liquefied ammonia being mixed in gas ammonia enters transfer pipeline III (6), conveying supply carbon dioxide subcooler (7) utilizes, carbon dioxide refrigerating system ammoniacal liquor method for separating and processing of the invention, it can be from safety, energy conservation, stable operation angle, it realizes in ammonia liquor separator and is remained without liquefied ammonia, it prevents liquefied ammonia to be entrained into refrigerant condenser, has ensured the safe and stable operation of refrigerant condenser, while reducing refrigeration system operating cost.
Description
Technical field
The invention belongs to carbon dioxide refrigerating system ammoniacal liquor processing technology fields, are to be related to a kind of dioxy more specifically
Change carbon refrigeration system ammoniacal liquor method for separating and processing.
Background technique
Project fields are purified in cement kiln flue gas collecting carbonic anhydride, gas ammonia, liquefied ammonia need in carbon dioxide refrigerating system
It is separated.In carbon freezing liquefaction process, vaporization is formed gas ammonia by liquefied ammonia in heat exchangers at different levels, and gas ammonia is conveyed
To ammoniacal liquor refrigerant condenser (gas ammonia liquefaction compression member), after compression forms liquefied ammonia, liquefied ammonia can be used to freezing liquid again
Change carbon dioxide.And when cryotherapy with liquid nitrogen machine compresses gas ammonia, liquefied ammonia is not can enter compression, otherwise can damage ammoniacal liquor
Refrigerant condenser.But gas ammonia is during transportation, often carries a certain amount of liquefied ammonia secretly, so, enter ammoniacal liquor freezing in gas ammonia
Before compressor, pretreatment process need to be increased, separated gas ammonia and liquefied ammonia by ammonia liquor separator.As ammonia liquor separator is long
The operation of time, the reserves of liquefied ammonia can increase in ammonia liquor separator, and when reaching a certain amount, the operation of ammoniacal liquor refrigerant condenser is produced
Raw suction brings liquefied ammonia in compressor into, and compressor body is caused to damage.Currently, 99% carbon freezing medium uses
Cryotherapy with liquid nitrogen cooling liquefaction.There are two types of technical solutions for ammonia liquor separator access system at present: first is that by the drain of ammonia liquor separator
Mouth access co 2 liquefaction device enters, and as the medium of co 2 liquefaction, this scheme is according to technology arrangement, and liquefier is in essence
Top of tower is evaporated, ammonia liquor separator need to be raised to the top of liquefier, project cost increases, and is unfavorable for the dimension of routine work
Shield；It is absorbed in container second is that the leakage fluid dram of ammonia liquor separator is directly accessed, is equivalent to and directly exhausts this part liquefied ammonia outside, because
It is substantial risk chemicals for liquefied ammonia, such scheme increases danger source, and a possibility that increase NH_3 leakage.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficiencies of the prior art, it is simple to provide a kind of structure, Neng Goucong
Safety, energy conservation, stable operation angle are set out, and are optimized, can effectively be realized in ammonia liquor separator to existing equipment and technique
No liquefied ammonia residual, so that liquefied ammonia be prevented to be entrained into refrigerant condenser, has ensured the safe and stable operation of refrigerant condenser,
Liquid ammonia medium in ammoniacal liquor separation simultaneously is directly entered subcooler and is cooled down again to carbon dioxide product, reduces refrigeration system
The carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment of operating cost.
Solve the problems, such as techniques discussed above, the technical scheme adopted by the invention is as follows:
The present invention is a kind of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment, the carbon dioxide refrigerating system ammonia
Liquid separating treatment equipment includes ammonia liquor separator ontology, and described this body side surface of ammonia liquor separator passes through transfer pipeline I and dioxy
Change the connection of carbon refrigeration system, this body side surface of ammonia liquor separator is connected to by transfer pipeline II with gas ammonia liquefaction compression member, ammoniacal liquor
The body bottom portion of separator body is connected to by transfer pipeline III with carbon dioxide subcooler, enters ammoniacal liquor by transfer pipeline I
The liquefied ammonia volume flow of separator body is set as no more than the liquefied ammonia body for entering carbon dioxide subcooler by transfer pipeline III
The structure of product flow.
The height and position of the body bottom portion of the ammonia liquor separator ontology is set above the mistake of carbon dioxide subcooler
The structure of height and position at the top of cooler.
The ammonia liquor separator ontology of the carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment includes ammonia liquor separator
Ontology I and ammonia liquor separator ontology I, the carbon dioxide refrigerating system include technical grade carbon dioxide refrigerating system and food
Grade carbon-dioxide refrigeration system, the carbon dioxide subcooler include industrial grade carbon-dioxide subcooler and food-grade titanium dioxide
Carbon subcooler.
The ammonia liquor separator ontology I of the ammonia liquor separator ontology passes through a transfer pipeline I and technical grade titanium dioxide
The ammonia liquor separator ontology I of the connection of carbon refrigeration system, the ammonia liquor separator ontology passes through a transfer pipeline II and gas ammonia
The compression member that liquefies connection, ammonia liquor separator ontology I are connected to by a transfer pipeline III with industrial grade carbon-dioxide subcooler.
The ammonia liquor separator ontology II of the ammonia liquor separator ontology passes through a transfer pipeline I and food-grade titanium dioxide
The connection of carbon refrigeration system, the ammonia liquor separator ontology II are connected by a transfer pipeline II and gas ammonia liquefaction compression member
Logical, the ammonia liquor separator ontology II is connected to by a transfer pipeline III with food-grade carbon-dioxide subcooler.
Enter the ammoniacal liquor point of ammonia liquor separator ontology by the transfer pipeline I being connected to technical grade carbon dioxide refrigerating system
Liquefied ammonia volume flow from device ontology I is set as entering no more than the transfer pipeline III by being connected to ammonia liquor separator ontology I
The structure of the liquefied ammonia volume flow of industrial grade carbon-dioxide subcooler.
Enter the ammoniacal liquor point of ammonia liquor separator ontology by the transfer pipeline I being connected to food-grade carbon-dioxide refrigeration system
Liquefied ammonia volume flow from device ontology II be set as no more than by the transfer pipeline III that is connected to ammonia liquor separator ontology II into
Enter the structure of the liquefied ammonia volume flow of food-grade carbon-dioxide subcooler.
, can be from safety, energy conservation, stable operation angle the invention further relates to a kind of step is simple, it can be effectively real
It is remained in existing ammonia liquor separator without liquefied ammonia, so that liquefied ammonia be prevented to be entrained into refrigerant condenser, has ensured refrigerant condenser peace
Entirely, stable operation, while the liquid ammonia medium in ammoniacal liquor separation is directly entered subcooler and is cooled down again to carbon dioxide product,
Reduce the carbon dioxide refrigerating system ammoniacal liquor method for separating and processing of refrigeration system operating cost.
The processing step of the carbon dioxide refrigerating system ammoniacal liquor method for separating and processing are as follows: 1) by carbon dioxide refrigeration system
This body side surface of ammonia liquor separator of system ammoniacal liquor separating treatment equipment is connected to by transfer pipeline I with carbon dioxide refrigerating system, will
This body side surface of ammonia liquor separator is connected to by transfer pipeline II with gas ammonia liquefaction compression member, by the ontology of ammonia liquor separator ontology
Bottom is connected to by transfer pipeline III with carbon dioxide subcooler；2) after carbon dioxide refrigerating system starting, carbon dioxide refrigeration
The gas ammonia of system output enters ammonia liquor separator ontology by transfer pipeline I, and gas ammonia and the liquefied ammonia being mixed in gas ammonia are in ammoniacal liquor
Separating treatment is carried out in separator body；3) gas ammonia enters transfer pipeline II, is transported to gas ammonia liquefaction pressure by transfer pipeline II
It is compressed in contracting component, converts liquefied ammonia for gas ammonia；4) carbon dioxide refrigerating system output gas ammonia by transfer pipeline I into
After entering ammonia liquor separator ontology, the liquefied ammonia being mixed in gas ammonia enters transfer pipeline III, passes through the conveying of transfer pipeline III supply two
Carbonoxide subcooler utilizes, and completes carbon dioxide refrigerating system ammoniacal liquor separating treatment.
When the body bottom portion of ammonia liquor separator ontology is connected to by transfer pipeline III with carbon dioxide subcooler, by ammoniacal liquor
The height and position of the body bottom portion of separator body is set above the height at the top of the subcooler of carbon dioxide subcooler, is convenient for
The liquefied ammonia being mixed in gas ammonia is transported away from ammonia liquor separator ontology.
It is carried out at the separation of carbon dioxide refrigerating system ammoniacal liquor after the starting of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment
When reason, set the liquefied ammonia volume flow for entering ammonia liquor separator ontology by transfer pipeline I to no more than by transfer pipeline
III enters the liquefied ammonia volume flow of carbon dioxide subcooler, enables the liquefied ammonia being mingled in gas ammonia completely into carbon dioxide mistake
Cooler avoids enter into gas ammonia liquefaction compression member.
Carbon dioxide refrigerating system ammoniacal liquor is carried out after the carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment starting
When separating treatment, ammonia liquor separator ontology will be entered by the transfer pipeline I being connected to technical grade carbon dioxide refrigerating system
The liquefied ammonia volume flow of ammonia liquor separator ontology I is set as no more than the transfer pipeline by being connected to ammonia liquor separator ontology I
III enters the liquefied ammonia volume flow of industrial grade carbon-dioxide subcooler.
Carbon dioxide refrigerating system ammoniacal liquor is carried out after the carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment starting
When separating treatment, ammonia liquor separator ontology will be entered by the transfer pipeline I being connected to food-grade carbon-dioxide refrigeration system
The liquefied ammonia volume flow of ammonia liquor separator ontology II is set as no more than the delivery pipe by being connected to ammonia liquor separator ontology II
Road III enters the liquefied ammonia volume flow of food-grade carbon-dioxide subcooler.
Using technical solution of the present invention, can obtain it is below the utility model has the advantages that
Carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment and processing method of the present invention, pass through different delivery pipes
The connection between all parts of equipment is realized on road.In this way, being kept away in the case where ensuring effectively to compress and liquefy gas ammonia
Exempt from liquefied ammonia and enter compressor, protection compressor safety, while realizing the recycling for the liquefied ammonia collected in ammonia liquor separator, avoids liquid
Emission intensity pollutes, and reduces cost.It is set as not by the liquefied ammonia volume flow that transfer pipeline I enters ammonia liquor separator ontology
Greater than the structure for the liquefied ammonia volume flow for entering carbon dioxide subcooler by transfer pipeline III, thus it is ensured that being separated in ammoniacal liquor
Liquefied ammonia after being separated in device all can completely enter carbon dioxide subcooler, and there is no liquefied ammonia to enter compressor
Problem.Processing equipment and method of the present invention separate the ammoniacal liquor of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment
This body side surface of device is connected to by transfer pipeline I with carbon dioxide refrigerating system, and by ammonia liquor separator, this body side surface passes through delivery pipe
Road II is connected to gas ammonia liquefaction compression member, and the body bottom portion of ammonia liquor separator ontology 1 is passed through transfer pipeline III and titanium dioxide
The connection of carbon subcooler；Carbon dioxide refrigerating system starting after, carbon dioxide refrigerating system output gas ammonia by transfer pipeline I into
Enter ammonia liquor separator ontology, gas ammonia and the liquefied ammonia being mixed in gas ammonia carry out separating treatment in ammonia liquor separator ontology；Gas ammonia
Into transfer pipeline II, it is transported in gas ammonia liquefaction compression member and is compressed by transfer pipeline II, convert liquid for gas ammonia
Ammonia；The gas ammonia of carbon dioxide refrigerating system output is mixed in gas ammonia after transfer pipeline I enters ammonia liquor separator ontology
Liquefied ammonia enters transfer pipeline III, conveys supply carbon dioxide subcooler by transfer pipeline III and utilizes, completes carbon dioxide refrigeration
System ammoniacal liquor separating treatment.Device and method of the invention, in conjunction with cement kiln flue gas collecting carbonic anhydride purifying process units
Technology arrangement and production line host service requirement, the influence after fully considering transformation to entire carbon dioxide refrigerating system, from
And effectively overcome defect in the prior art.Carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment of the present invention and its place
Reason method can be realized in ammonia liquor separator and remain without liquefied ammonia, prevent liquefied ammonia quilt from safety, energy conservation, stable operation angle
Entrainment enters refrigerant condenser, has ensured the safe and stable operation of refrigerant condenser, while the liquid ammonia medium in ammoniacal liquor separation is straight
It taps into and is cooled down again into subcooler to carbon dioxide product, reduce refrigeration system operating cost.
Detailed description of the invention
Brief description is made to content expressed by each attached drawing of this specification and the label in figure below:
Fig. 1 is the workflow schematic diagram of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment of the present invention；
Attached drawing acceptance of the bid note is respectively as follows: 1, ammonia liquor separator ontology；2, transfer pipeline I；3, carbon dioxide refrigerating system；4, defeated
Send pipeline II；5, gas ammonia liquefaction compression member；6, transfer pipeline III；7, carbon dioxide subcooler；8, body bottom portion；9, ontology top
Portion；10, ammonia liquor separator ontology I；11, ammonia liquor separator ontology I；12, technical grade carbon dioxide refrigerating system；13, food-grade
Carbon dioxide refrigerating system；14, industrial grade carbon-dioxide subcooler；15, food-grade carbon-dioxide subcooler.
Specific embodiment
Below against attached drawing, by the description of the embodiment, to for example related each structure of a specific embodiment of the invention
The works such as the shape of part, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle are further
Detailed description:
As shown in Fig. 1, the present invention is a kind of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment, the titanium dioxide
Carbon refrigeration system ammoniacal liquor separating treatment equipment includes ammonia liquor separator ontology 1, and 1 side of ammonia liquor separator ontology passes through defeated
Pipeline I 2 is sent to be connected to carbon dioxide refrigerating system 3,2 side of ammonia liquor separator ontology is liquefied by transfer pipeline II 4 and gas ammonia
Compression member 5 is connected to, and the body bottom portion 8 of ammonia liquor separator ontology 1 is connected to by transfer pipeline III 6 with carbon dioxide subcooler 7,
By transfer pipeline I 2 enter ammonia liquor separator ontology 1 liquefied ammonia volume flow be set as no more than by transfer pipeline III 6 into
Enter the structure of the liquefied ammonia volume flow of carbon dioxide subcooler 7.Above structure realizes each of equipment by different transfer pipelines
Connection between a component.In this way, avoiding liquefied ammonia from entering compression in the case where ensuring effectively to compress and liquefy gas ammonia
Machine, protection compressor safety, while realizing the recycling for the liquefied ammonia collected in ammonia liquor separator, avoid liquefied ammonia discharge from causing dirt
Dye, reduces cost.It is set as by the liquefied ammonia volume flow that transfer pipeline I 2 enters ammonia liquor separator ontology 1 no more than by defeated
The structure for sending pipeline III 6 to enter the liquefied ammonia volume flow of carbon dioxide subcooler 7, thus it is ensured that being carried out in ammonia liquor separator
The problem of liquefied ammonia after separation all can completely enter carbon dioxide subcooler 7, enter compressor there is no liquefied ammonia.This
The invention processing equipment and method, by the ammonia liquor separator ontology 1 of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment
Side is connected to by transfer pipeline I 2 with carbon dioxide refrigerating system 3, and 2 side of ammonia liquor separator ontology is passed through transfer pipeline II
4 are connected to gas ammonia liquefaction compression member 5, and the body bottom portion 8 of ammonia liquor separator ontology 1 is passed through transfer pipeline III 6 and titanium dioxide
Carbon subcooler 7 is connected to；After carbon dioxide refrigerating system starting, the gas ammonia that carbon dioxide refrigerating system 3 exports passes through transfer pipeline I
2 enter ammonia liquor separator ontology 1, and gas ammonia and the liquefied ammonia being mixed in gas ammonia carry out separating treatment in ammonia liquor separator ontology 1；
Gas ammonia enters transfer pipeline II 4, is transported in gas ammonia liquefaction compression member 5 and is compressed by transfer pipeline II 4, gas ammonia is turned
Turn to liquefied ammonia；The gas ammonia that carbon dioxide refrigerating system 3 exports is mingled with after transfer pipeline I 2 enters ammonia liquor separator ontology 1
Liquefied ammonia in gas ammonia enters transfer pipeline III 6, conveys supply carbon dioxide subcooler 7 by transfer pipeline III 6 and utilizes, completes
Carbon dioxide refrigerating system ammoniacal liquor separating treatment.Device and method of the invention, it is pure in conjunction with cement kiln flue gas collecting carbonic anhydride
The technology arrangement and production line host service requirement for changing process units, to entire carbon dioxide refrigeration system after fully considering transformation
The influence of system, to effectively overcome defect in the prior art.At carbon dioxide refrigerating system ammoniacal liquor separation of the present invention
Equipment and its processing method are managed, existing equipment and technique can be optimized from safety, energy conservation, stable operation angle,
It can effectively realize in ammonia liquor separator and be remained without liquefied ammonia, so that liquefied ammonia be prevented to be entrained into refrigerant condenser, ensured cold
Freeze the safe and stable operation of compressor, while the liquid ammonia medium in ammoniacal liquor separation is directly entered subcooler to carbon dioxide product
Cooled down again, reduces refrigeration system operating cost.
Carbon dioxide refrigerating system ammoniacal liquor separating treatment device and method of the present invention, to the body of each transfer pipeline
Product flow is calculated, to ensure that input quantity no more than output quantity, to avoid the accumulation of liquid nitrogen, is realized to liquefy to gas ammonia and be compressed
The protection of component 5.Below according to a kind of parameter citing of specific processing equipment.Such as: according to heat exchanger performance parameter, food-grade
Subcooler, technical grade subcooler total heat duties be respectively 153KW, 267KW, food-grade subcooler needs the liquefied ammonia volume consumed
Flow is 0.6m3/ h, the liquefied ammonia volume flow that technical grade subcooler needs are 1.05m3/h.By calculating, ammonia liquor separator is flowed into
The liquefied ammonia of the ammonia entrainment of V-2203 is not more than 0.6m3When/h, liquefied ammonia can fully enter food-grade subcooler and exchange heat；Stream
Enter the liquefied ammonia of ammonia entrainment of corresponding ammonia liquor separator ontology no more than 1.05m3When/h, liquefied ammonia can fully enter industrial mistake
Cooler heat exchange.According to ammonia liquor separator technical parameter and internal structure feature, to ensure that the liquefied ammonia in ammoniacal liquor separation is not entrained
Into refrigerant condenser, compressor part is damaged.The volume of corresponding ammonia liquor separator is 2.6m3, liquefied ammonia deposits in the container
Amount is no more than 1m3, the volume of corresponding ammonia liquor separator is 5.9m3, liquefied ammonia storage is no more than 3m in the container3.In conjunction with system
The influence of operating pressure, according to equipment technical parameters and technology arrangement, food-grade subcooler liquefied ammonia inlet pressure is 0.038MPa,
Inlet tube is 300mm apart from ground level；Technical grade subcooler inlet pressure is 0.038MPa, and inlet tube is apart from ground level
300mm.Consider in ammoniacal liquor separation liquefied ammonia smooth can be left to subcooler exchanged heat, the resistance of ducting and allowance, while considering excellent
Originally, it is on 6.36m platform that ammonia liquor separator, which is put into absolute altitude, for chemical conversion.It is conveyed in ammonia liquor separator to reasonable Arrangement between subcooler liquid
The conveyance conduit of liquefied ammonia.
The height and position of the body bottom portion 8 of the ammonia liquor separator ontology 1 is set above carbon dioxide subcooler 7
The structure of height and position at the top of subcooler.It is improved by structure, it can be ensured that the liquefied ammonia that ammonia liquor separator ontology 1 is collected is reliable
Continue into carbon dioxide subcooler 7, will not in ammonia liquor separator ontology 1 bulk deposition, avoid gas ammonia liquefy compression member 5
By damage gas ammonia liquefaction compression member 5 in liquefied ammonia inspiration gas ammonia liquefaction compression member 5 when work.
The ammonia liquor separator ontology 1 of the carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment includes ammonia liquor separator
Ontology I 10 and ammonia liquor separator ontology I 11, the carbon dioxide refrigerating system 3 include technical grade carbon dioxide refrigerating system
12 and food-grade carbon-dioxide refrigeration system 13, the carbon dioxide subcooler 7 includes industrial grade carbon-dioxide subcooler 14
With food-grade carbon-dioxide subcooler 15.The ammonia liquor separator ontology I 10 of the ammonia liquor separator ontology 1 passes through a conveying
Pipeline I 2 is connected to technical grade carbon dioxide refrigerating system 12, the ammonia liquor separator ontology I 10 of the ammonia liquor separator ontology 1
It is connected to by a transfer pipeline II 4 with gas ammonia liquefaction compression member 5, ammonia liquor separator ontology I 10 passes through a transfer pipeline
III 6 are connected to industrial grade carbon-dioxide subcooler 14.The ammonia liquor separator ontology II 11 of the ammonia liquor separator ontology 1 passes through
A piece transfer pipeline I 2 is connected to food-grade carbon-dioxide refrigeration system 13, and the ammonia liquor separator ontology II 11 passes through one
Transfer pipeline II 4 is connected to gas ammonia liquefaction compression member 5, and the ammonia liquor separator ontology II 11 passes through a transfer pipeline III
6 are connected to food-grade carbon-dioxide subcooler 14.In equipment of the invention, by connecting with technical grade carbon dioxide refrigerating system 12
The liquefied ammonia volume flow that logical transfer pipeline I 2 enters the ammonia liquor separator ontology I 10 of ammonia liquor separator ontology 1 is set as little
Enter the liquefied ammonia body of industrial grade carbon-dioxide subcooler 14 in the transfer pipeline III 6 by being connected to ammonia liquor separator ontology I 10
The structure of product flow.Enter ammonia liquor separator ontology by the transfer pipeline I 2 being connected to food-grade carbon-dioxide refrigeration system 13
The liquefied ammonia volume flow of 1 ammonia liquor separator ontology II 11 is set as being not more than what process was connected to ammonia liquor separator ontology II 11
Transfer pipeline III 6 enters the structure of the liquefied ammonia volume flow of food-grade carbon-dioxide subcooler 15.
, can be from safety, energy conservation, stable operation angle the invention further relates to a kind of step is simple, it can be effectively real
It is remained in existing ammonia liquor separator without liquefied ammonia, so that liquefied ammonia be prevented to be entrained into refrigerant condenser, has ensured refrigerant condenser peace
Entirely, stable operation, while the liquid ammonia medium in ammoniacal liquor separation is directly entered subcooler and is cooled down again to carbon dioxide product,
Reduce the carbon dioxide refrigerating system ammoniacal liquor method for separating and processing of refrigeration system operating cost.
The processing step of the carbon dioxide refrigerating system ammoniacal liquor method for separating and processing are as follows: 1) by carbon dioxide refrigeration system
1 side of ammonia liquor separator ontology of system ammoniacal liquor separating treatment equipment is connected to by transfer pipeline I 2 with carbon dioxide refrigerating system 3,
2 side of ammonia liquor separator ontology is connected to by transfer pipeline II 4 with gas ammonia liquefaction compression member 5, by ammonia liquor separator ontology 1
Body bottom portion 8 be connected to carbon dioxide subcooler 7 by transfer pipeline III 6；2) after carbon dioxide refrigerating system starting, dioxy
Change the gas ammonia that carbon refrigeration system 3 exports and enter ammonia liquor separator ontology 1 by transfer pipeline I 2, gas ammonia and is mixed in gas ammonia
Liquefied ammonia carries out separating treatment in ammonia liquor separator ontology 1；3) gas ammonia enters transfer pipeline II 4, is conveyed by transfer pipeline II 4
It is compressed in gas ammonia liquefaction compression member 5, converts liquefied ammonia for gas ammonia；4) gas ammonia that carbon dioxide refrigerating system 3 exports
After transfer pipeline I 2 enters ammonia liquor separator ontology 1, the liquefied ammonia being mixed in gas ammonia enters transfer pipeline III 6, by defeated
It send the conveying supply carbon dioxide subcooler 7 of pipeline III 6 to utilize, completes carbon dioxide refrigerating system ammoniacal liquor separating treatment.
It, will when the body bottom portion 8 of ammonia liquor separator ontology 1 is connected to by transfer pipeline III 6 with carbon dioxide subcooler 7
The height and position of the body bottom portion 8 of ammonia liquor separator ontology 1 is set above the height at the top of the subcooler of carbon dioxide subcooler 7
Degree, the liquefied ammonia convenient for being mixed in gas ammonia are transported away from ammonia liquor separator ontology 1.
It is carried out at the separation of carbon dioxide refrigerating system ammoniacal liquor after the starting of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment
When reason, set the liquefied ammonia volume flow for entering ammonia liquor separator ontology 1 by transfer pipeline I 2 to no more than by delivery pipe
Road III 6 enters the liquefied ammonia volume flow of carbon dioxide subcooler 7, enables the liquefied ammonia being mingled in gas ammonia completely into titanium dioxide
Carbon subcooler 7 avoids enter into gas ammonia liquefaction compression member 5.
Carbon dioxide refrigerating system ammoniacal liquor is carried out after the carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment starting
When separating treatment, ammonia liquor separator ontology will be entered by the transfer pipeline I 2 being connected to technical grade carbon dioxide refrigerating system 12
The liquefied ammonia volume flow of 1 ammonia liquor separator ontology I 10 is set as defeated no more than by being connected to ammonia liquor separator ontology I 10
The liquefied ammonia volume flow for sending pipeline III 6 to enter industrial grade carbon-dioxide subcooler 14.
Carbon dioxide refrigerating system ammoniacal liquor is carried out after the carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment starting
When separating treatment, ammonia liquor separator ontology will be entered by the transfer pipeline I 2 being connected to food-grade carbon-dioxide refrigeration system 13
The liquefied ammonia volume flow of 1 ammonia liquor separator ontology II 11 is set as being not more than what process was connected to ammonia liquor separator ontology II 11
Transfer pipeline III 6 enters the liquefied ammonia volume flow of food-grade carbon-dioxide subcooler 15.
Carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment and its processing method of the present invention of the invention, be
On the basis of prior art and device structure, the case where considering long-term Host Security, stable operation, to the technique of ammonia liquor separator
Arrangement and corresponding pipeline optimize transformation, and main purpose is the liquefied ammonia being discharged in ammonia liquor separator as far as possible, and liquefied ammonia cannot
It is present in excess in Ammonia separation device, while reducing liquefied ammonia internal circulating load, reduce the operating cost of system.
Above in conjunction with attached drawing, an exemplary description of the invention, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved by this
The conception and technical scheme of invention directly apply to other occasions, are within the scope of the invention.
Claims (5)
1. a kind of carbon dioxide refrigerating system ammoniacal liquor method for separating and processing, it is characterised in that: the carbon dioxide refrigerating system
The processing step of ammoniacal liquor method for separating and processing are as follows: 1) by the ammonia liquor separator of carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment
Ontology (1) side is connected to by transfer pipeline I (2) with carbon dioxide refrigerating system (3), by ammonia liquor separator ontology (2) side
It is connected to by transfer pipeline II (4) with gas ammonia liquefaction compression member (5), the body bottom portion (8) of ammonia liquor separator ontology (1) is logical
Transfer pipeline III (6) is crossed to be connected to carbon dioxide subcooler (7)；2) after carbon dioxide refrigerating system starting, carbon dioxide refrigeration
The gas ammonia of system (3) output enters ammonia liquor separator ontology (1), gas ammonia and the liquid being mixed in gas ammonia by transfer pipeline I (2)
Ammonia carries out separating treatment in ammonia liquor separator ontology (1)；3) gas ammonia enters transfer pipeline II (4), passes through transfer pipeline II (4)
It is transported in gas ammonia liquefaction compression member (5) and is compressed, convert liquefied ammonia for gas ammonia；4) carbon dioxide refrigerating system (3) is defeated
For gas ammonia out after transfer pipeline I (2) enters ammonia liquor separator ontology (1), the liquefied ammonia being mixed in gas ammonia enters delivery pipe
Road III (6) conveys supply carbon dioxide subcooler (7) by transfer pipeline III (6) and utilizes, completes carbon dioxide refrigerating system ammonia
Liquid separating treatment.
2. carbon dioxide refrigerating system ammoniacal liquor method for separating and processing according to claim 1, it is characterised in that: by ammoniacal liquor point
When body bottom portion (8) from device ontology (1) is connected to by transfer pipeline III (6) with carbon dioxide subcooler (7), ammoniacal liquor is separated
The height and position of the body bottom portion (8) of device ontology (1) is set above the height at the top of the subcooler of carbon dioxide subcooler (7)
Degree, the liquefied ammonia convenient for being mixed in gas ammonia are transported away from ammonia liquor separator ontology (1).
3. carbon dioxide refrigerating system ammoniacal liquor method for separating and processing according to claim 1 or 2, it is characterised in that: dioxy
When changing progress carbon dioxide refrigerating system ammoniacal liquor separating treatment after carbon refrigeration system ammoniacal liquor separating treatment equipment starts, it will pass through defeated
Send pipeline I (2) enter ammonia liquor separator ontology (1) liquefied ammonia volume flow be set as no more than by transfer pipeline III (6) into
The liquefied ammonia volume flow for entering carbon dioxide subcooler (7) enables the liquefied ammonia being mingled in gas ammonia completely into carbon dioxide mistake
Cooler (7) avoids enter into gas ammonia liquefaction compression member (5).
4. carbon dioxide refrigerating system ammoniacal liquor method for separating and processing according to claim 1 or 2, it is characterised in that: described
Carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment starting after carry out carbon dioxide refrigerating system ammoniacal liquor separating treatment when, will
Enter the ammoniacal liquor of ammonia liquor separator ontology (1) by the transfer pipeline I (2) being connected to technical grade carbon dioxide refrigerating system (12)
The liquefied ammonia volume flow of separator body I (10) is set as no more than the conveying by being connected to ammonia liquor separator ontology I (10)
Pipeline III (6) enters the liquefied ammonia volume flow of industrial grade carbon-dioxide subcooler (14).
5. carbon dioxide refrigerating system ammoniacal liquor method for separating and processing according to claim 1 or 2, it is characterised in that: described
Carbon dioxide refrigerating system ammoniacal liquor separating treatment equipment starting after carry out carbon dioxide refrigerating system ammoniacal liquor separating treatment when, will
Enter the ammoniacal liquor of ammonia liquor separator ontology (1) by the transfer pipeline I (2) being connected to food-grade carbon-dioxide refrigeration system (13)
The liquefied ammonia volume flow of separator body II (11) is set as defeated no more than by being connected to ammonia liquor separator ontology II (11)
The liquefied ammonia volume flow for sending pipeline III (6) to enter food-grade carbon-dioxide subcooler (15).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119268439A (en) * | 2024-12-09 | 2025-01-07 | 中太海碳(上海)环保科技有限公司 | A heat exchange system and control method for precooling carbon dioxide using liquid ammonia |
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Application publication date: 20190412 |