CN108534389A - Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process - Google Patents
Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process Download PDFInfo
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- CN108534389A CN108534389A CN201810590620.3A CN201810590620A CN108534389A CN 108534389 A CN108534389 A CN 108534389A CN 201810590620 A CN201810590620 A CN 201810590620A CN 108534389 A CN108534389 A CN 108534389A
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- Prior art keywords
- lithium bromide
- furnace gas
- hot water
- heat
- water
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 170
- 238000000034 method Methods 0.000 title claims abstract description 66
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000005201 scrubbing Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000003513 alkali Substances 0.000 claims abstract description 25
- 238000001354 calcination Methods 0.000 claims abstract description 21
- 239000006096 absorbing agent Substances 0.000 claims abstract description 19
- 239000002826 coolant Substances 0.000 claims abstract description 6
- 229940059936 lithium bromide Drugs 0.000 claims description 80
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 239000003507 refrigerant Substances 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 3
- 239000008234 soft water Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000013589 supplement Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000005457 optimization Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 49
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000003763 carbonization Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 239000012452 mother liquor Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- 230000031709 bromination Effects 0.000 description 2
- 238000005893 bromination reaction Methods 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003643 water by type Substances 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
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- 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
- F25B39/00—Evaporators; Condensers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
Lithium bromide refrigerating heat sink in a kind of procedure of producing soda under joint alkaline process, including heat alkali liquid tower, furnace gas scrubbing tower, hot water barrel and lithium bromide chiller, lithium bromide chiller includes generator, absorber, condenser and evaporator, the furnace gas output end of the external calcination system of input end of heat alkali liquid tower, the outlet end of heat alkali liquid tower is connected to the furnace gas input terminal of furnace gas scrubbing tower, the output end of hot water of furnace gas scrubbing tower is connected to hot water barrel, the water outlet end of hot water barrel is connected to the heated inlet end of generator, and the coolant outlet end of generator is connected to the input terminal of furnace gas scrubbing tower.The device recycles the heat of calcination system using furnace gas scrubbing tower, and the heat source of low temperature chilled water is produced as lithium bromide refrigerator, has reached Utilizing Energy Sources in Reason, greatly saves energy consumption, optimization system index.
Description
Technical field
The present invention relates to a kind of refrigeration cooling device, lithium bromide refrigerating drops in especially a kind of procedure of producing soda under joint alkaline process
Warm device, and the method using aforementioned device progress lithium bromide refrigerating cooling.
Background technology
Lithium bromide refrigerating cooling flow is during traditional soda manufacture：
1, lithium bromide refrigerator heat source flow.Traditional lithium bromide refrigerator heat source is generally production system steaming during soda manufacture
Vapour or hot water do not consider to be returned the System steams condensed water such as calcination system furnace gas heat and calcining, dry ammonium, weight ash, salt manufacturing
It receives and utilizes, need additionally to increase energy consumption.
2, traditional crystal system cooling is that liquefied ammonia cooling is produced in ice maker compression during soda manufacture, and technique needs are set
Standby investment is big, and ice maker operation needs power consumption more, in addition, because liquefied ammonia corrosivity is strong, and liquefied ammonia pressure is high after compression, to crystallization
The Outer Cooler material and class requirement of system cooling are higher.
3, it is that recirculated water is air-cooled that traditional carbonization system drop, which takes temperature and drops into carbonators mother liquor temperature, during soda manufacture
Tower cooler cools down, and the technique is influenced by ambient temperature big, and when summer high temperature produces, air cooling tower circulating water temperature after cooling is up to
32 DEG C or more, being not easy to, which reduces carbonization, takes temperature and into tower mother liquor temperature.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of reasonable design, Neng Gouyou
Effect reduces lithium bromide refrigerating heat sink in system energy consumption and the procedure of producing soda under joint alkaline process of reduction equipment investment expense.
Another technical problem to be solved by this invention is to provide a kind of using in above-mentioned procedure of producing soda under joint alkaline process
The method that lithium bromide refrigerating heat sink carries out refrigeration cool-down.
The technical problem to be solved by the present invention is to what is realized by technical solution below.The present invention is a kind of alkali
Lithium bromide refrigerating heat sink during method soda manufacture, the device include heat alkali liquid tower, furnace gas scrubbing tower, hot water barrel and bromination
Lithium unit, lithium bromide chiller include generator, absorber, condenser and evaporator, the external calcining system of input end of heat alkali liquid tower
The condensed water output end of the systems such as the furnace gas output end of system or calcining, dry ammonium, weight ash, salt manufacturing, the outlet end of heat alkali liquid tower and
The furnace gas input terminal of furnace gas scrubbing tower is connected to, and the output end of hot water of furnace gas scrubbing tower is connected to hot water barrel, the water outlet of hot water barrel
End is connected to the heated inlet end of generator, and the coolant outlet end of generator is connected to the input terminal of furnace gas scrubbing tower；The hair
Be connected with the heat exchanger for lithium-bromide solution and heat exchange between raw device and absorber, the steam (vapor) outlet end of generator with it is cold
Condenser is connected to, and the coolant outlet end of condenser is connected to the water as refrigerant arrival end of evaporator, steam (vapor) outlet end and the suction of evaporator
Device connection is received, is communicated between the cryogen water outlet end of the evaporator and the water as refrigerant arrival end of evaporator convenient for evaporator
Tube side carries out the cooling water pipe that chilled water is produced in heat exchange, and cryogenic fluid pump is provided on cooling water pipe.Connect between hot water barrel and generator
It is connected to heat-exchanger pump；The regular pump group vacuum of lithium bromide chiller vacuum pump；Heat exchanger between generator and absorber carry out
While lithium bromide weak solution and lithium bromide concentrated solution exchange, it can will be carried out between lithium bromide weak solution and lithium bromide concentrated solution
Heat exchange；
The technical problems to be solved by the invention can also be further realized by technical solution below, for the above
Procedure of producing soda under joint alkaline process in lithium bromide refrigerating heat sink, the heat alkali liquid tower and furnace gas scrubbing tower be equipped with 2,2
The outlet end of a heat alkali liquid tower is connected to the furnace gas input terminal of 2 furnace gas scrubbing towers respectively, the stove of one of furnace gas scrubbing tower
Gas outlet end is connected to the furnace gas input terminal of another furnace gas scrubbing tower, and the output end of hot water of 2 furnace gas scrubbing towers is and hot water
Bucket connection.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Lithium bromide refrigerating heat sink in the procedure of producing soda under joint alkaline process is additionally provided with for hot water barrel on the hot water barrel
The hot-water heater of heating.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Lithium bromide refrigerating heat sink in the procedure of producing soda under joint alkaline process, bromination is communicated between the generator and heat exchanger
Lithium concentrated solution pumps, and lithium bromide weak solution pump is communicated between absorber and heat exchanger.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Lithium bromide refrigerating heat sink in the procedure of producing soda under joint alkaline process passes through U between the furnace gas scrubbing tower and hot water barrel
Shape water seal is connected to.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Lithium bromide refrigerating heat sink in the procedure of producing soda under joint alkaline process, the heat exchanger are plate heat exchanger.
The technical problems to be solved by the invention can also be further realized by technical solution below, a kind of alkali
Lithium bromide refrigerating cool-down method during method soda manufacture it is characterized in that：This method is given birth to using above-described union soda soda ash
Lithium bromide refrigerating heat sink carries out refrigeration cool-down, the refrigeration cool-down method during production：By calcination system or calcining, do
Ammonium, weight ash, the systems generation such as salt manufacturing high-temperature furnace gas carry out removal of impurities washing through heat alkali liquid tower, subsequently into being used in furnace gas scrubbing tower
Soft water spray washing, recycles furnace gas heat, and washing the delivery that furnace gas generates in gas wash tower enters in hot water barrel, in hot water barrel
Hot water temperature reach and be sent into the generator of lithium bromide chiller after standard, the lithium bromide weak solution in generator is added
Heat, lithium bromide weak solution is heated to become lithium bromide concentrated solution, and lithium bromide concentrated solution enters through heat exchanger in absorber, and lithium bromide is dilute
Solution is entered condenser by thermogenetic steam and cooled, and the liquid water of generation enters evaporator to the water as refrigerant in evaporator
It is supplemented, water as refrigerant cools down evaporator tube side chilled water by cooling water pipe self-loopa, produces cryogenic freezing
Water, the interior steam generated of evaporator are absorbed by the lithium bromide concentrated solution in absorber, and lithium bromide concentrated solution absorbs steam, forms bromine
Change lithium weak solution, enters in generator through heat exchanger, so move in circles.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Lithium bromide refrigerating cool-down method in the procedure of producing soda under joint alkaline process, the temperature of the low temperature chilled water produced is 5 DEG C-
20℃。
Compared with prior art, the present invention utilizes heat alkali liquid tower to the furnace gas heat of recycling calcination system or calcining, does
The System steams condensed waters such as ammonium, weight ash, salt manufacturing are washed, and furnace gas heat is carried out to the furnace gas after washing using furnace gas scrubbing tower
Recycling, absorb heat source of the hot water as BrLi chiller of the heat of recycling, increase energy consumption without additional, reach energy conjunction
Reason utilizes, and greatly saves energy consumption；Secondly the compression of original ice maker is replaced to produce liquefied ammonia temperature reduction technology using lithium bromide refrigerator unit,
The low temperature chilled water produced can bring great economic benefit and social benefit for reducing crystal system temperature.The device
The heat that calcination system is recycled using furnace gas scrubbing tower, the heat source of low temperature chilled water is produced as lithium bromide refrigerator, is reached
Utilizing Energy Sources in Reason has been arrived, energy consumption, optimization system index are greatly saved.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, right below in conjunction with attached drawing of the present invention
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
The every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Referring to Fig.1, lithium bromide refrigerating heat sink in a kind of procedure of producing soda under joint alkaline process, the device include heat alkali liquid tower
1, furnace gas scrubbing tower 2, hot water barrel 3 and lithium bromide chiller, lithium bromide chiller include generator 6, absorber 9, condenser 7 and evaporation
The systems such as device 10, the furnace gas output end of the external calcination system of input end of heat alkali liquid tower 1 or calcining, dry ammonium, weight ash, salt manufacturing
Condensed water output end, the outlet end of heat alkali liquid tower 1 are connected to the furnace gas input terminal of furnace gas scrubbing tower 2, the hot water of furnace gas scrubbing tower 2
Output end is connected to hot water barrel 3, and the water outlet end of hot water barrel 3 is connected to the heated inlet end of generator 6, the cooling of generator 6
Outlet end is connected to the input terminal of furnace gas scrubbing tower 2；It is connected with for lithium-bromide solution between the generator 6 and absorber 9
It is connected to condenser 7 with the steam (vapor) outlet end of the heat exchanger 8 of heat exchange, generator 6, coolant outlet end and the steaming of condenser 7
The water as refrigerant arrival end connection of device 10 is sent out, the steam (vapor) outlet end of evaporator 10 is connected to absorber 9, the cryogen of the evaporator 10
It is communicated between water outlet end and the water as refrigerant arrival end of evaporator 10 and produces freezing convenient for carrying out heat exchange to 10 tube side of evaporator
The cooling water pipe of water is provided with cryogenic fluid pump 11 on cooling water pipe；Hot water in hot water barrel is delivered to lithium bromide machine by heat-exchanger pump 5
Group uses.
The heat alkali liquid tower 1 and furnace gas scrubbing tower 2 are equipped with 2, the outlet ends of 2 heat alkali liquid towers 1 respectively with 2 furnace gases
The furnace gas input terminal of scrubbing tower 2 is connected to, furnace gas export end and another furnace gas scrubbing tower 2 of one of furnace gas scrubbing tower 2
Furnace gas input terminal is connected to, and the output end of hot water of 2 furnace gas scrubbing towers 2 is connected to hot water barrel 3.
The hot-water heater 4 for being heated to hot water barrel 3 is additionally provided on the hot water barrel 3.The setting of hot-water heater 4
Lithium bromide chiller normal operation when for ensureing system initial start-up, in 4 external low-pressure steam heat hot water bucket 3 of hot-water heater
Hot water send lithium bromide chiller to use after hot water temperature is up to standard, after system production normal operation, deactivates hot-water heater 4 to heat
The heating of bucket 3.
It is communicated with lithium bromide concentrated solution pump between the generator 6 and heat exchanger 8, is connected between absorber 9 and heat exchanger 8
There is lithium bromide weak solution pump.
It is connected to by U-shaped water seal between the furnace gas scrubbing tower 2 and hot water barrel 3.The effect of U-shaped water seal is for preventing furnace gas
The exchange that gas is carried out between scrubbing tower 2 and hot water barrel 3, reduces the heat loss in hot water barrel 3.
The heat exchanger 8 is plate heat exchanger.
Lithium bromide refrigerating cool-down method in a kind of procedure of producing soda under joint alkaline process, this method use above-described union soda
Lithium bromide refrigerating heat sink carries out refrigeration cool-down, the refrigeration cool-down method during soda manufacture：By calcination system or
The high-temperature furnace gas that the systems such as calcining, dry ammonium, weight ash, salt manufacturing generate carries out removal of impurities washing through heat alkali liquid tower, is washed subsequently into furnace gas
It washs and uses soft water spray washing in tower, recycle furnace gas heat, washing the delivery that furnace gas generates in gas wash tower enters in hot water barrel,
Hot water temperature in hot water barrel is sent into after reaching standard in the generator of lithium bromide chiller, to the lithium bromide weak solution in generator
It is heated, lithium bromide weak solution is heated to become lithium bromide concentrated solution, and lithium bromide concentrated solution enters through heat exchanger in absorber, bromine
Change lithium weak solution is entered condenser by thermogenetic steam and cooled, and the liquid water of generation enters evaporator in evaporator
Water as refrigerant is supplemented, and water as refrigerant cools down evaporator tube side chilled water by cooling water pipe self-loopa, produces low
Warm chilled water, the interior steam generated of evaporator are absorbed by the lithium bromide concentrated solution in absorber, and lithium bromide concentrated solution absorbs steam,
Lithium bromide weak solution is formed, enters in generator through heat exchanger, so moves in circles.
The temperature of the low temperature chilled water produced is 5 DEG C -20 DEG C.The low temperature chilled water produced is for crystallizing cold analysis system
AI temperature is reduced, crystallization precooling analysis system reduces AI temperature, and crystal salt analysis system reduces mother's II temperature, and carbonization system reduction takes temperature
And carbonization system is reduced into tower mother liquor temperature etc..
The general temperature gradient that clicks uses low temperature chilled water：
1,5.5 DEG C or so of low-temperature cold water is produced to send to crystal system cold analysis Outer Cooler reduction cold analysis AI temperature 2, produce 5~20
DEG C or so low-temperature cold water send to the pre- cold analysis Outer Cooler of crystal system and reduce pre- cold analysis AI temperature；
3, it produces 5.5 DEG C or so of low-temperature cold water and sends to crystal system Outer Cooler reduction of saltouing and saltout female II temperature；
4, it produces 5~20 DEG C or so of low-temperature cold water and sends to carbonization system carbonators reduction carbonization taking-out temperature；
5, it produces 5~20 DEG C or so of low-temperature cold water and sends to carbonization system and be carbonized into the reduction of tower mother liquor cooler into tower mother liquor temperature
Degree.
Compared with prior art, the present invention has the following advantages：
1, the present invention is made using the System steams condensed water such as recycling calcination system furnace gas heat or calcining, dry ammonium, weight ash, salt manufacturing
It is used for lithium bromide refrigerator heat source, increases energy consumption without additional, reach Utilizing Energy Sources in Reason, greatly save energy consumption；
2, the present invention produces low temperature chilled water for reducing crystal system temperature using lithium bromide refrigerator, compares original ice maker pressure
Contraction takes liquefied ammonia temperature reduction technology, brings great economic benefit and social benefit, in terms of 600,000 tons/year of soda manufacture ability
It calculates, year-on-year technique in the past can save about 50KWh/ tons of alkali of power consumption, with the 0.6 yuan of calculating of every degree electricity, then it is annual produce 600000 tons of soda ash per year
18,000,000 yuan of the electricity charge can be reduced, outer 1200 cubes of draining can be reduced every year；
The present invention produces low temperature chilled water for reducing carbonization system temperature using lithium bromide refrigerator, compares original recirculated water wind
Cold tower cooler temperature reduction technology, optimization system index.
Claims (8)
1. lithium bromide refrigerating heat sink in a kind of procedure of producing soda under joint alkaline process, it is characterised in that：The device includes heat alkali liquid
Tower, furnace gas scrubbing tower, hot water barrel and lithium bromide chiller, lithium bromide chiller include generator, absorber, condenser and evaporator,
The condensed water of the systems such as the furnace gas output end of the external calcination system of input end of heat alkali liquid tower or calcining, dry ammonium, weight ash, salt manufacturing
Output end, the outlet end of heat alkali liquid tower are connected to the furnace gas input terminal of furnace gas scrubbing tower, the output end of hot water of furnace gas scrubbing tower with
Hot water barrel is connected to, and the water outlet end of hot water barrel is connected to the heated inlet end of generator, the coolant outlet end of generator and furnace gas
The input terminal of scrubbing tower is connected to；The heat exchange for lithium-bromide solution and heat exchange is connected between the generator and absorber
The steam (vapor) outlet end of device, generator is connected to condenser, and the coolant outlet end of condenser and the water as refrigerant arrival end of evaporator connect
Logical, the steam (vapor) outlet end of evaporator is connected to absorber, and the cryogen water outlet end of the evaporator and the water as refrigerant of evaporator enter
It is communicated between mouth end convenient for carrying out the cooling water pipe that chilled water is produced in heat exchange to evaporator tube side, is provided on cooling water pipe cold
Agent pumps.
2. lithium bromide refrigerating heat sink in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It states heat alkali liquid tower and furnace gas scrubbing tower is equipped with 2, the outlet ends of the 2 heat alkali liquid towers furnace gas with 2 furnace gas scrubbing towers respectively
Input terminal is connected to, and the furnace gas export end of one of furnace gas scrubbing tower is connected to the furnace gas input terminal of another furnace gas scrubbing tower, and 2
The output end of hot water of a furnace gas scrubbing tower is connected to hot water barrel.
3. lithium bromide refrigerating heat sink, feature exist in procedure of producing soda under joint alkaline process according to claim 1 or 2
In：The hot-water heater for being heated to hot water barrel is additionally provided on the hot water barrel.
4. lithium bromide refrigerating heat sink in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It states and is communicated with lithium bromide concentrated solution pump between generator and heat exchanger, lithium bromide weak solution is communicated between absorber and heat exchanger
Pump.
5. lithium bromide refrigerating heat sink in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It states and is connected to by U-shaped water seal between furnace gas scrubbing tower and hot water barrel.
6. lithium bromide refrigerating heat sink in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It is plate heat exchanger to state heat exchanger.
7. lithium bromide refrigerating cool-down method in a kind of procedure of producing soda under joint alkaline process, it is characterised in that：This method is wanted using right
Lithium bromide refrigerating heat sink in the procedure of producing soda under joint alkaline process described in 1-6 any one is asked to carry out refrigeration cool-down, the system
Cold cool-down method：By the high-temperature furnace gas of the systems generation such as calcination system or calcining, dry ammonium, weight ash, salt manufacturing through heat alkali liquid tower into
Row removal of impurities washing recycles furnace gas heat, furnace gas is washed in gas wash tower subsequently into soft water spray washing is used in furnace gas scrubbing tower
The delivery of generation enters in hot water barrel, and the hot water temperature in hot water barrel reaches the generator of feeding lithium bromide chiller after standard
It is interior, the lithium bromide weak solution in generator is heated, lithium bromide weak solution is heated to become lithium bromide concentrated solution, and lithium bromide is dense
Solution enters through heat exchanger in absorber, and lithium bromide weak solution is entered condenser by thermogenetic steam and cooled, generation
Liquid water enters evaporator and supplements the water as refrigerant in evaporator, and water as refrigerant is by cooling water pipe self-loopa to evaporator tube
Journey chilled water cools down, and produces low temperature chilled water, and the steam generated in evaporator is dense molten by the lithium bromide in absorber
Liquid absorbs, and lithium bromide concentrated solution absorbs steam, forms lithium bromide weak solution, enters in generator through heat exchanger, so recycle past
It is multiple.
8. lithium bromide refrigerating cool-down method in procedure of producing soda under joint alkaline process according to claim 7, it is characterised in that：Institute
The temperature for stating the low temperature chilled water produced is 5 DEG C -20 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590620.3A CN108534389A (en) | 2018-06-09 | 2018-06-09 | Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590620.3A CN108534389A (en) | 2018-06-09 | 2018-06-09 | Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process |
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ID=63470533
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|---|---|---|---|
| CN201810590620.3A Pending CN108534389A (en) | 2018-06-09 | 2018-06-09 | Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681989A (en) * | 2018-12-27 | 2019-04-26 | 付涛 | A method of using cellulose fibre produce in high-temperature gas produce cooling capacity |
| CN115108567A (en) * | 2022-07-18 | 2022-09-27 | 中国五环工程有限公司 | Energy-saving process for calcination crystallization section in soda production process by combined soda process |
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|---|---|---|---|---|
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| CN106766342A (en) * | 2016-12-12 | 2017-05-31 | 松下制冷（大连）有限公司 | Ammonia still process column overhead ammonia vapour residual heat system is reclaimed using lithium bromide absorption type heat pump |
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| DE3316324A1 (en) * | 1982-07-15 | 1984-05-03 | Hutterer & Lechner KG, 2325 Himberg | DRIP FUNNEL CONNECTED TO THE WASTEWATER NETWORK FOR THE OVERFLOW OF HOT WATER TANKS AND THE LIKE |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109681989A (en) * | 2018-12-27 | 2019-04-26 | 付涛 | A method of using cellulose fibre produce in high-temperature gas produce cooling capacity |
| CN115108567A (en) * | 2022-07-18 | 2022-09-27 | 中国五环工程有限公司 | Energy-saving process for calcination crystallization section in soda production process by combined soda process |
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Address after: 222000 108, Tongguan South Road, Haizhou District, Lianyungang, Jiangsu. Applicant after: LIANYUNGANG FUYUAN DEBANG TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 222000 108, Tongguan South Road, Haizhou District, Lianyungang, Jiangsu. Applicant before: LIANYUNGANG QINGTIAN DEBANG TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Application publication date: 20180914 |