CN106839514B - A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source - Google Patents
A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source Download PDFInfo
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- CN106839514B CN106839514B CN201611199007.6A CN201611199007A CN106839514B CN 106839514 B CN106839514 B CN 106839514B CN 201611199007 A CN201611199007 A CN 201611199007A CN 106839514 B CN106839514 B CN 106839514B
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 71
- 238000011084 recovery Methods 0.000 title claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 155
- 230000008929 regeneration Effects 0.000 claims abstract description 71
- 238000011069 regeneration method Methods 0.000 claims abstract description 71
- 230000006835 compression Effects 0.000 claims abstract description 27
- 238000007906 compression Methods 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 abstract description 30
- 238000001816 cooling Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 10
- 239000002912 waste gas Substances 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 230000009897 systematic effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Gas Separation By Absorption (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source, it is related to a kind of heat recovery system of wet exhaust gas of heat.The present invention, which solves the absorption total heat recovery system of existing spray column and exists in extension process, needs additional high temperature heat source and cooling heat source, the high problem of project cost.One end of secondary steam pipeline of the invention is connected to regenerator, the other end of secondary steam pipeline is connected to regeneration coil pipe, secondary steam pipe road between regenerator and regeneration coil pipe is equipped with vapour compression machine, steam drainage device is arranged on the pipeline being connected to regeneration coil outlets, absorbs and is disposed with heat collector, solution regenerator and restriction expansion device on the weak solution pipeline between the outlet end of spray column lower part and the arrival end of regenerator lower part.The present invention is used to lack in the wet waste gas absorption formula total heat recovery engineering of heat of high temperature heat source and cooling heat source.
Description
Technical field
The present invention relates to a kind of heat recovery systems of wet exhaust gas of heat, and in particular to a kind of absorption type heat for no longer needing to heat source
Wet exhaust gas total heat recovery system.
Background technique
The wet exhaust gas of heat contains the latent heat for having a large amount of vapor, existing spray column absorption total heat recovery system such as Fig. 5 institute
Show, mainly by absorption spray column 1, spray equipment 2, regenerator 4, regeneration coil pipe 5, solution regenerator 6, solution circulation pump 7,
Heat collector 8, condensing heat exchanger 15, the first heat-carrying agent pipeline 41, the wet exhaust pipe 51 of heat, dry and cold exhaust pipe 56, secondary steaming
Vapor pipeline 61, concentrated solution pipeline 71, weak solution pipeline 76, cooling medium pipeline 81 and high temperature heat source pipeline 91 constitute system,
The total heat recovery of the wet exhaust gas of heat can be carried out using the hygroscopicity of hygroscopic solution in spray column 1 and be heated by heat collector 8 by absorbing
Thermal medium again realizes heat transfer, but after hygroscopic solution absorbs vapor, concentration reduction becomes weak solution, and weak solution must
Concentrated solution must can be formed by the heating concentrating regenerative of regeneration coil pipe 5 in regenerator 4 and be continued for hot wet useless
The total heat recovery of gas；And weak solution is concentrated generated secondary steam and cannot directly be vented, it is also necessary to pass through condensing heat exchanger
15 carry out cooling condensation.Therefore the existing absorption total heat recovery system of spray column needs additional high temperature heat source to carry out weak solution
Concentrating regenerative needs additional cooling heat source to carry out the cooling condensation of secondary steam, not only consumes additional heat and cooling capacity, make
It at energy waste, and needs to heat and respectively needs a set of heat source and cold source equipment system with cooling procedure, increase the throwing of system
Money.It needs additional high temperature heat source and cooling heat source and high investment is to restrict the absorption full heat of existing spray column to return
Receive the principal element that System Market promotes and applies.
To sum up, the absorption total heat recovery system of existing spray column in extension process exist need additional high temperature heat source and
Cooling heat source, the high problem of project cost.
Summary of the invention
The purpose of the present invention is to solve the absorption total heat recovery systems of existing spray column to exist in extension process
Need additional high temperature heat source and cooling heat source, the high problem of project cost.And then provide a kind of suction for no longer needing to heat source
The wet exhaust gas total heat recovery system of receipts formula heat.
The technical scheme is that
A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source, it includes absorbing spray column, spray dress
It sets, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, heat collector, the first heat-carrying agent pipeline, the wet exhaust gas of heat
Pipeline, dry and cold exhaust pipe, secondary steam pipeline, concentrated solution pipeline and weak solution pipeline, it further includes restriction expansion device, steams
Vapour compressor and steam drainage device connect heat collector on the first heat-carrying agent pipeline,
The wet exhaust pipe of heat is connected to the lower part for absorbing spray column, and dry and cold exhaust pipe and the top for absorbing spray column connect
It is logical,
One end of secondary steam pipeline is connected to the upper outlet end of regenerator, the other end of secondary steam pipeline and regeneration
The arrival end of heat exchange coil is connected to, and the secondary steam pipe road between regenerator and regeneration coil pipe is equipped with vapour compression machine,
Steam drainage device is arranged on the pipeline being connected to regeneration coil outlets, and regeneration coil pipe is arranged in regenerator
Portion, one end of weak solution pipeline is connected to the outlet end for absorbing spray column lower part, under the other end and regenerator of weak solution pipeline
The arrival end in portion is connected to, absorb on the weak solution pipeline between the outlet end of spray column lower part and the arrival end of regenerator lower part according to
It is secondary to be provided with heat collector, solution regenerator and restriction expansion device,
One end of concentrated solution pipeline is connected to the upper outlet end of regenerator, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed on the concentrated solution pipeline between the upper outlet end of regenerator and the arrival end of spray equipment
The inside for absorbing spray column is arranged in solution regenerator and solution circulation pump, spray equipment.
A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source, it includes absorbing spray column, spray dress
It sets, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, the first heat-carrying agent pipeline, the wet exhaust pipe of heat, do
Cold exhaust pipe, secondary steam pipeline, concentrated solution pipeline and weak solution pipeline, it further includes absorption heat-exchange coil pipe, throttling expansion
Device, vapour compression machine and steam drainage device,
Spray equipment and absorption heat-exchange coil pipe are set gradually from top to bottom inside spray column absorbing,
Absorption heat-exchange coil pipe is connected on first heat-carrying agent pipeline,
The wet exhaust pipe of heat is connected to the lower part for absorbing spray column, and dry and cold exhaust pipe and the top for absorbing spray column connect
It is logical,
One end of secondary steam pipeline is connected to the upper outlet end of regenerator, the other end of secondary steam pipeline and regeneration
The arrival end of heat exchange coil is connected to, and the secondary steam pipe road between regenerator and regeneration coil pipe is equipped with vapour compression machine,
Steam drainage device is arranged on the pipeline being connected to regeneration coil outlets, and regeneration coil pipe is arranged in regenerator
Portion, one end of weak solution pipeline is connected to the outlet end for absorbing spray column lower part, under the other end and regenerator of weak solution pipeline
The arrival end in portion is connected to, absorb on the weak solution pipeline between the outlet end of spray column lower part and the arrival end of regenerator lower part according to
It is secondary to be provided with solution regenerator and restriction expansion device,
One end of concentrated solution pipeline is connected to the outlet end on regenerator top, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed on the concentrated solution pipeline between the outlet end on regenerator top and the arrival end of spray equipment
Solution regenerator and solution circulation pump.
A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source, it includes absorbing spray column, spray dress
It sets, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, heat collector, the first heat-carrying agent pipeline, the wet exhaust gas of heat
Pipeline, dry and cold exhaust pipe, secondary steam pipeline, concentrated solution pipeline and weak solution pipeline, it further includes absorption heat-exchange coil pipe, section
Expansion device, vapour compression machine, steam drainage device, the second heat-carrying agent pipeline, third heat-carrying agent pipeline and the 4th is flowed to carry
Heat medium pipeline,
Spray equipment and absorption heat-exchange coil pipe are set gradually from top to bottom inside spray column absorbing,
First heat-carrying agent pipeline is divided into two-way, respectively the second heat-carrying agent pipeline and third heat-carrying agent pipeline, the
Absorption heat-exchange coil pipe is connected on two heat-carrying agent pipelines, connects heat collector, the second heat-carrying agent pipe on third heat-carrying agent pipeline
Road and third heat-carrying agent pipeline, which converge, is incorporated to the 4th heat-carrying agent pipeline,
The wet exhaust pipe of heat is connected to the lower part for absorbing spray column, and dry and cold exhaust pipe and the top for absorbing spray column connect
It is logical,
One end of secondary steam pipeline is connected to the upper outlet end of regenerator, the other end of secondary steam pipeline and regeneration
The arrival end of heat exchange coil is connected to, and the secondary steam pipe road between regenerator and regeneration coil pipe is equipped with vapour compression machine,
Steam drainage device is arranged on the pipeline being connected to regeneration coil outlets, and regeneration coil pipe is arranged in regenerator
Portion,
One end of weak solution pipeline is connected to the outlet end for absorbing spray column lower part, the other end of weak solution pipeline and regeneration
The arrival end of device lower part is connected to, and absorbs the weak solution pipeline between the outlet end of spray column lower part and the arrival end of regenerator lower part
On be disposed with heat collector, solution regenerator and restriction expansion device,
One end of concentrated solution pipeline is connected to the outlet end on regenerator top, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed on the concentrated solution pipeline between the outlet end on regenerator top and the arrival end of spray equipment
Solution regenerator and solution circulation pump.
A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source, it includes absorbing spray column, spray dress
It sets, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, heat collector, the first heat-carrying agent pipeline, the wet exhaust gas of heat
Pipeline, dry and cold exhaust pipe, secondary steam pipeline, concentrated solution pipeline and weak solution pipeline, it further includes absorption heat-exchange coil pipe, section
Expansion device, vapour compression machine and steam drainage device are flowed,
Spray equipment and absorption heat-exchange coil pipe are set gradually from top to bottom inside spray column absorbing,
Heat collector and absorption heat-exchange coil pipe are connected on first heat-carrying agent pipeline,
The wet exhaust pipe of heat is connected to the lower part for absorbing spray column, and dry and cold exhaust pipe and the top for absorbing spray column connect
It is logical,
One end of secondary steam pipeline is connected to the upper outlet end of regenerator, the other end of secondary steam pipeline and regeneration
The arrival end of heat exchange coil is connected to, and the secondary steam pipe road between regenerator and regeneration coil pipe is equipped with vapour compression machine,
Steam drainage device is arranged on the pipeline being connected to regeneration coil outlets, and regeneration coil pipe is arranged in regenerator
Portion,
One end of weak solution pipeline is connected to the exit for absorbing spray column lower part, the other end of weak solution pipeline and regeneration
The arrival end of device lower part is connected to, and absorbs the weak solution pipeline between the exit of spray column lower part and the arrival end of regenerator lower part
On be disposed with heat collector, solution regenerator and restriction expansion device,
One end of concentrated solution pipeline is connected to the outlet end on regenerator top, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed on the concentrated solution pipeline between the outlet end on regenerator top and the arrival end of spray equipment
Solution regenerator and solution circulation pump.
The present invention has the effect that compared with prior art
1, after the present invention carries out compression boosting to secondary steam using vapour compression machine, the condensation of secondary steam is realized
Temperature is higher than the explosive evaporation temperature of solution, and the heat of condensation of secondary steam can be used for the concentration and evaporation heat of solution, be not necessarily to volume
Outer high temperature heat source and cooling heat source, reduces energy consumption, has saved the energy.
2, weak solution enters back into regenerator after being depressured by restriction expansion device in the present invention, realizes regenerator
Pressure lower than the pressure for absorbing spray column, lower pressure environment is more conducive to reducing the explosive evaporation of solution in regenerator
Temperature and the energy consumption for reducing vapour compression machine.
3, the present invention in regeneration coil pipe be both solution concentrating regenerative heating equipment and secondary steam cooling it is cold
Solidifying heat-releasing apparatus, simplifies system structure, saves system cost and investment.
4, present system structure is simple, and without mating additional cold and heat source apparatus, operation and maintenance are convenient, and system operation can
By property height.
Detailed description of the invention
Fig. 1 is the systematic schematic diagram of a specific embodiment of the invention one；
Fig. 2 is the systematic schematic diagram of a specific embodiment of the invention two；
Fig. 3 is the systematic schematic diagram of a specific embodiment of the invention three；
Fig. 4 is the systematic schematic diagram of a specific embodiment of the invention four；
Fig. 5 is the absorption total heat recovery systematic schematic diagram of existing spray column.
Specific embodiment
Specific embodiment 1: embodiment is described with reference to Fig. 1, a kind of suction for no longer needing to heat source of present embodiment
The wet exhaust gas total heat recovery system of receipts formulas heat, it includes absorbing spray column 1, spray equipment 2, regenerator 4, regeneration coil pipe 5, molten
Liquid regenerator 6, solution circulation pump 7, heat collector 8, the first heat-carrying agent pipeline 41, the wet exhaust pipe 51 of heat, dry and cold exhaust pipe
56, secondary steam pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it further includes restriction expansion device 9, vapour compression machine
10 and steam drainage device 11, heat collector 8 is connected on the first heat-carrying agent pipeline 41,
The wet exhaust pipe 51 of heat is connected to the lower part for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion's connection,
One end of secondary steam pipeline 61 is connected to the upper outlet end of regenerator 4, the other end of secondary steam pipeline 61
It is connected to the arrival end of regeneration coil pipe 5, the secondary steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is equipped with
Vapour compression machine 10, steam drainage device 11 be arranged in on the pipeline of 5 outlet of regeneration coil pipe, regeneration coil pipe
5 are arranged in the inside of regenerator 4, and one end of weak solution pipeline 76 is connected to the outlet end for absorbing 1 lower part of spray column, weak solution pipe
The other end on road 76 is connected to the arrival end of 4 lower part of regenerator, absorbs the outlet end and 4 lower part of regenerator of 1 lower part of spray column
Heat collector 8, solution regenerator 6 and restriction expansion device 9 are disposed on weak solution pipeline 76 between arrival end,
One end of concentrated solution pipeline 71 is connected to the upper outlet end of regenerator 4, the other end of concentrated solution pipeline 71 and spray
The arrival end of shower device 2 is connected to, the concentrated solution pipeline 71 between the upper outlet end of regenerator 4 and the arrival end of spray equipment 2
On be disposed with solution regenerator 6 and solution circulation pump 7, the inside for absorbing spray column 1 is arranged in spray equipment 2.
The operation logic of present embodiment:
Heat-carrying agent enters heat collector 8 by the first heat-carrying agent pipeline 41 and is heated by the dilute hygroscopic solution of high temperature, realizes heat
The recycling of amount.Since heat collector 8 is set to the outside of absorption spray column 1, so present embodiment is referred to as cooling type embodiment party
Case.
The wet exhaust gas of heat, which is entered by the wet exhaust pipe 51 of heat from lower part, absorbs spray column 1, fills absorbing in spray column 1 with spray
The dense hygroscopic solution contact for setting 2 sprays, carries out heat and mass transfer process, discharges sensible heat and latent heat and directly heats hygroscopic solution, mentions
The temperature for rising hygroscopic solution, the low temperature drying exhaust gas after heat release absorb spray column 1 by the outflow of dry and cold exhaust pipe 56.
After absorbing the vapor and sensible heat that are absorbed in the wet exhaust gas of heat in spray column 1, concentration reduces to be formed hygroscopic solution
Dilute hygroscopic solution and temperature gets a promotion, dilute hygroscopic solution in the bottom collection for absorbing spray column 1, absorb spray column 1 with
Between regenerator 4 under the driving of pressure difference, regenerator 4, the heat release in heat collector 8 of dilute hygroscopic solution are flowed to by weak solution pipeline 76
And heat-carrying agent is heated, it is preheated in solution regenerator 6 by dense hygroscopic solution, dilute hygroscopic solution is swollen finally by throttling
Enter regenerator 4 after swollen 9 reducing pressure by regulating flow of device, dilute hygroscopic solution is in regenerator 4 by regeneration coil pipe 5 by boosting it
Secondary steam afterwards carries out heating concentration, generates secondary steam, the concentration of hygroscopic solution is improved to form dense hygroscopic solution, dense
Hygroscopic solution is driven by solution circulation pump 7, flows to spray equipment 2, and the heat release in solution regenerator 6 by concentrated solution pipeline 71
And dilute hygroscopic solution is preheated, temperature reduces, and the dense hygroscopic solution of low temperature is by spray equipment 2 into absorption spray column 1
It is sprayed, dense hygroscopic solution and the wet exhaust gas of heat absorbed in spray column 1 carry out heat and mass transfer process, hygroscopic solution concentration drop
Low, temperature increases, and forms high temperature weak solution, constitutes solution circulation.
Restriction expansion device 9 of the invention is arranged on weak solution pipeline, and solution circulation pump 7 is arranged on concentrated solution pipeline
Set-up mode, ensure that absorb spray column 1 pressure be higher than regenerator 4 pressure, built the environment under low pressure of regenerator 4,
Its purpose is to reduce the explosive evaporation temperature of solution in regenerator 4, while the energy consumption of vapour compression machine is reduced, because
According to the hot physical property and state of solution and water rule, the pressure of secondary steam is higher, higher to the sealing performance requirement of compressor,
And realize that energy consumption consumed by identical condensation temperature promotion amplitude is higher.The pressure of regenerator is lower than the pressure for absorbing spray column
Power, this is the significant difference of the present invention with the absorption total heat recovery system of existing spray column.
The secondary steam generated in regenerator 4 of the invention is flowed out by secondary steam pipeline 61 and in vapour compression machine 10
Effect is lower to carry out boost in pressure (accordingly the condensation temperature of secondary steam is also significantly enhanced), the secondary steaming after boosting
Vapour enters in regeneration coil pipe 5 exothermic condensation into liquid, while heating the weak solution in regenerator 4 and being concentrated through regeneration, complete
At condensation heat transfer secondary steam by steam trap connection 11 and it is extraneous realize pressure partition, while by liquid water discharge system.
The setting of vapour compression machine 10 of the invention realizes the boost in pressure of secondary steam and condensation temperature is promoted, thus
So that the temperature of secondary steam is higher than the temperature of solution in regenerator 4, the condensation heat of secondary steam can be used for solution concentration again
Raw heating realizes recycling for condensation heat and regenerated heat, without additional high temperature heat source and cooling heat source, reduces the energy and disappears
Consumption.
When the wet exhaust gas water capacity of heat is medium, and smoke content is higher, it is suitble to use the present embodiment.
Specific embodiment 2: embodiment is described with reference to Fig. 2, a kind of suction for no longer needing to heat source of present embodiment
The wet exhaust gas total heat recovery system of receipts formulas heat, it includes absorbing spray column 1, spray equipment 2, regenerator 4, regeneration coil pipe 5, molten
Liquid regenerator 6, solution circulation pump 7, the first heat-carrying agent pipeline 41, the wet exhaust pipe 51 of heat, dry and cold exhaust pipe 56, secondary steaming
Vapor pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it further includes absorption heat-exchange coil pipe 3, restriction expansion device 9, steam
Compressor 10 and steam drainage device 11,
Spray equipment 2 and absorption heat-exchange coil pipe 3 are set gradually from top to bottom inside spray column 1 absorbing,
Absorption heat-exchange coil pipe 3 is connected on first heat-carrying agent pipeline 41,
The wet exhaust pipe 51 of heat is connected to the lower part for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion's connection,
One end of secondary steam pipeline 61 is connected to the upper outlet end of regenerator 4, the other end of secondary steam pipeline 61
It is connected to the arrival end of regeneration coil pipe 5, the secondary steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is equipped with
Vapour compression machine 10, steam drainage device 11 be arranged in on the pipeline of 5 outlet of regeneration coil pipe, regeneration coil pipe
5 are arranged in the inside of regenerator 4, and one end of weak solution pipeline 76 is connected to the outlet end for absorbing 1 lower part of spray column, weak solution pipe
The other end on road 76 is connected to the arrival end of 4 lower part of regenerator, absorbs the outlet end and 4 lower part of regenerator of 1 lower part of spray column
It is disposed with solution regenerator 6 and restriction expansion device 9 on weak solution pipeline 76 between arrival end,
One end of concentrated solution pipeline 71 is connected to the outlet end on 4 top of regenerator, the other end of concentrated solution pipeline 71 and spray
The arrival end of shower device 2 is connected to, the concentrated solution pipeline 71 between the outlet end on 4 top of regenerator and the arrival end of spray equipment 2
On be disposed with solution regenerator 6 and solution circulation pump 7.
The operation logic of present embodiment:
The difference of present embodiment and specific embodiment one is: present embodiment, which eliminates to be located at, absorbs spray column 1
External heat collector 8, and the full heat for the wet exhaust gas of heat that hygroscopic solution is absorbed, are to be changed inside absorption spray column 1 by absorbing
Hot coil 3 heats heat-carrying agent, realizes the recycling of the wet waste-gas heat of heat.Spray column 1 is absorbed since absorption heat-exchange coil pipe 3 is set to
Inside, so present embodiment generally may be simply referred to as internally cooled embodiment.Other operational process and principle and specific implementation
Mode one is identical.
When the wet exhaust gas water capacity of heat is higher, and smoke content is lower, it is suitble to use the present embodiment.
Specific embodiment 3: embodiment is described with reference to Fig. 3, a kind of suction for no longer needing to heat source of present embodiment
The wet exhaust gas total heat recovery system of receipts formulas heat, it includes absorbing spray column 1, spray equipment 2, regenerator 4, regeneration coil pipe 5, molten
Liquid regenerator 6, solution circulation pump 7, heat collector 8, the first heat-carrying agent pipeline 41, the wet exhaust pipe 51 of heat, dry and cold exhaust pipe
56, secondary steam pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it further includes absorption heat-exchange coil pipe 3, throttling expansion dress
9, vapour compression machine 10, steam drainage device 11, the second heat-carrying agent pipeline 42, third heat-carrying agent pipeline 43 and the 4th is set to carry
Heat medium pipeline 44,
Spray equipment 2 and absorption heat-exchange coil pipe 3 are set gradually from top to bottom inside spray column 1 absorbing,
First heat-carrying agent pipeline 41 is divided into two-way, respectively the second heat-carrying agent pipeline 42 and third heat-carrying agent pipeline
43, absorption heat-exchange coil pipe 3 is connected on the second heat-carrying agent pipeline 42, connects heat collector 8 on third heat-carrying agent pipeline 43, second
Heat-carrying agent pipeline 42 and third heat-carrying agent pipeline 43, which converge, is incorporated to the 4th heat-carrying agent pipeline 44,
The wet exhaust pipe 51 of heat is connected to the lower part for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion's connection,
One end of secondary steam pipeline 61 is connected to the upper outlet end of regenerator 4, the other end of secondary steam pipeline 61
It is connected to the arrival end of regeneration coil pipe 5, the secondary steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is equipped with
Vapour compression machine 10, steam drainage device 11 be arranged in on the pipeline of 5 outlet of regeneration coil pipe, regeneration coil pipe
5 are arranged in the inside of regenerator 4,
One end of weak solution pipeline 76 is connected to the outlet end for absorbing 1 lower part of spray column, the other end of weak solution pipeline 76
It is connected to the arrival end of 4 lower part of regenerator, between the arrival end for absorbing 4 lower part of outlet end and regenerator of 1 lower part of spray column
Heat collector 8, solution regenerator 6 and restriction expansion device 9 are disposed on weak solution pipeline 76,
One end of concentrated solution pipeline 71 is connected to the outlet end on 4 top of regenerator, the other end of concentrated solution pipeline 71 and spray
The arrival end of shower device 2 is connected to, the concentrated solution pipeline 71 between the outlet end on 4 top of regenerator and the arrival end of spray equipment 2
On be disposed with solution regenerator 6 and solution circulation pump 7.
The operation logic of present embodiment:
The difference of present embodiment and specific embodiment one is: present embodiment and meanwhile be provided be located at absorb spray
Heat collector 8 outside tower 1 and the absorption heat-exchange coil pipe 3 inside absorption spray column 1, heat-carrying agent pass through the first heat-carrying agent
Pipeline 41 is divided into two-way after entering system, is heated all the way by the second heat-carrying agent pipeline 42 into absorption heat-exchange coil pipe 3, one
Road is heated by third heat-carrying agent pipeline 43 into heat collector 8, and the heat-carrying agent that last two-way is heated, which converges, is incorporated to the
Four heat-carrying agent pipelines, 44 outflow system, realizes the recycling of heat.Present embodiment generally may be simply referred to as double cold moulds in parallel and implement
Scheme.Other operational process and principle are identical as embodiment one.
When the wet exhaust gas water capacity of heat is medium, and smoke content is lower, it is suitble to use the present embodiment.
Specific embodiment 4: embodiment is described with reference to Fig. 4, a kind of suction for no longer needing to heat source of present embodiment
The wet exhaust gas total heat recovery system of receipts formulas heat, it includes absorbing spray column 1, spray equipment 2, regenerator 4, regeneration coil pipe 5, molten
Liquid regenerator 6, solution circulation pump 7, heat collector 8, the first heat-carrying agent pipeline 41, the wet exhaust pipe 51 of heat, dry and cold exhaust pipe
56, secondary steam pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it further includes absorption heat-exchange coil pipe 3, throttling expansion dress
9, vapour compression machine 10 and steam drainage device 11 are set,
Spray equipment 2 and absorption heat-exchange coil pipe 3 are set gradually from top to bottom inside spray column 1 absorbing,
Heat collector 8 and absorption heat-exchange coil pipe 3, (, heat collector corresponding with specification are connected on first heat-carrying agent pipeline 41
8 and absorption heat-exchange coil pipe 3 position without limitation)
The wet exhaust pipe 51 of heat is connected to the lower part for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion's connection,
One end of secondary steam pipeline 61 is connected to the upper outlet end of regenerator 4, the other end of secondary steam pipeline 61
It is connected to the arrival end of regeneration coil pipe 5, the secondary steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is equipped with
Vapour compression machine 10, steam drainage device 11 be arranged in on the pipeline of 5 outlet of regeneration coil pipe, regeneration coil pipe
5 are arranged in the inside of regenerator 4,
One end of weak solution pipeline 76 is connected to the exit for absorbing 1 lower part of spray column, the other end of weak solution pipeline 76
It is connected to the arrival end of 4 lower part of regenerator, between the arrival end for absorbing 4 lower part of exit and regenerator of 1 lower part of spray column
Heat collector 8, solution regenerator 6 and restriction expansion device 9 are disposed on weak solution pipeline 76,
One end of concentrated solution pipeline 71 is connected to the outlet end on 4 top of regenerator, the other end of concentrated solution pipeline 71 and spray
The arrival end of shower device 2 is connected to, the concentrated solution pipeline 71 between the outlet end on 4 top of regenerator and the arrival end of spray equipment 2
On be disposed with solution regenerator 6 and solution circulation pump 7.
The operation logic of present embodiment:
The difference of present embodiment and specific embodiment one is: present embodiment and meanwhile be provided be located at absorb spray
Heat collector 8 outside tower 1 and the absorption heat-exchange coil pipe 3 inside absorption spray column 1, heat-carrying agent can initially enter and take heat
Device 8 carries out first time heating, enters back into absorption heat-exchange coil pipe 3 and carries out the second heating, this embodiment generally may be simply referred to as just
The double cold mould embodiments of series connection；Heat-carrying agent can also initially enter absorption heat-exchange coil pipe 3 and carry out the first heating, enter back into and take heat
Device 8 carries out the second heating, and this embodiment generally may be simply referred to as double cold mould embodiments of connecting.Other operational process and original
It manages identical as embodiment one.
When the wet exhaust gas water capacity of heat is lower, and smoke content is lower, it is suitble to using the double cold embodiments of positive series connection.
When the wet exhaust gas water capacity of heat is higher, and smoke content is lower, it is suitble to using double cold embodiments of connecting.
Claims (4)
1. a kind of wet exhaust gas total heat recovery system of absorption type heat for no longer needing to heat source, it includes absorbing spray column (1), spray dress
Set (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), heat collector (8), the first load
Heat medium pipeline (41), the wet exhaust pipe (51) of heat, dry and cold exhaust pipe (56), secondary steam pipeline (61), concentrated solution pipeline
(71) and weak solution pipeline (76), it is characterised in that: it further includes restriction expansion device (9), vapour compression machine (10) and steam
Steam trap connection (11),
Heat collector (8) are connected on first heat-carrying agent pipeline (41),
The wet exhaust pipe (51) of heat is connected to the lower part for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of secondary steam pipeline (61) is connected to the upper outlet end of regenerator (4), secondary steam pipeline (61) it is another
End is connected to the arrival end of regeneration coil pipe (5), the secondary steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) are equipped with, steam drainage device (11) is arranged in the pipe with regeneration coil pipe (5) outlet
On the road, regeneration coil pipe (5) setting is in the inside of regenerator (4), one end of weak solution pipeline (76) and absorption spray column (1)
The outlet end of lower part is connected to, and the other end of weak solution pipeline (76) is connected to the arrival end of regenerator (4) lower part, absorbs spray column
(1) heat collector is disposed on the weak solution pipeline (76) between the outlet end of lower part and the arrival end of regenerator (4) lower part
(8), solution regenerator (6) and restriction expansion device (9),
One end of concentrated solution pipeline (71) is connected to the upper outlet end of regenerator (4), the other end of concentrated solution pipeline (71) with
The arrival end of spray equipment (2) is connected to, dense molten between the upper outlet end of regenerator (4) and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed on liquid pipeline (71), spray equipment (2) setting is absorbing spray
The inside of tower (1).
2. a kind of wet exhaust gas total heat recovery system of absorption type heat for no longer needing to heat source, it includes absorbing spray column (1), spray dress
Set (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), the first heat-carrying agent pipeline
(41), the wet exhaust pipe (51) of heat, dry and cold exhaust pipe (56), secondary steam pipeline (61), concentrated solution pipeline (71) and dilute molten
Liquid pipeline (76), it is characterised in that: it further includes absorption heat-exchange coil pipe (3), restriction expansion device (9), vapour compression machine (10)
With steam drainage device (11),
Spray equipment (2) and absorption heat-exchange coil pipe (3) are set gradually from top to bottom inside spray column (1) absorbing,
Absorption heat-exchange coil pipe (3) are connected on first heat-carrying agent pipeline (41),
The wet exhaust pipe (51) of heat is connected to the lower part for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of secondary steam pipeline (61) is connected to the upper outlet end of regenerator (4), secondary steam pipeline (61) it is another
End is connected to the arrival end of regeneration coil pipe (5), the secondary steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) are equipped with, steam drainage device (11) is arranged in the pipe with regeneration coil pipe (5) outlet
On the road, regeneration coil pipe (5) setting is in the inside of regenerator (4), one end of weak solution pipeline (76) and absorption spray column (1)
The outlet end of lower part is connected to, and the other end of weak solution pipeline (76) is connected to the arrival end of regenerator (4) lower part, absorbs spray column
(1) solution is disposed on the weak solution pipeline (76) between the outlet end of lower part and the arrival end of regenerator (4) lower part to return
Hot device (6) and restriction expansion device (9),
One end of concentrated solution pipeline (71) is connected to the outlet end on regenerator (4) top, the other end of concentrated solution pipeline (71) with
The arrival end of spray equipment (2) is connected to, dense molten between the outlet end on regenerator (4) top and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed on liquid pipeline (71).
3. a kind of wet exhaust gas total heat recovery system of absorption type heat for no longer needing to heat source, it includes absorbing spray column (1), spray dress
Set (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), heat collector (8), the first load
Heat medium pipeline (41), the wet exhaust pipe (51) of heat, dry and cold exhaust pipe (56), secondary steam pipeline (61), concentrated solution pipeline
(71) and weak solution pipeline (76), it is characterised in that: it further includes absorption heat-exchange coil pipe (3), restriction expansion device (9), steam
Compressor (10), steam drainage device (11), the second heat-carrying agent pipeline (42), third heat-carrying agent pipeline (43) and the 4th carry
Heat medium pipeline (44),
Spray equipment (2) and absorption heat-exchange coil pipe (3) are set gradually from top to bottom inside spray column (1) absorbing,
First heat-carrying agent pipeline (41) is divided into two-way, respectively the second heat-carrying agent pipeline (42) and third heat-carrying agent pipeline
(43), absorption heat-exchange coil pipe (3) are connected on the second heat-carrying agent pipeline (42), connection takes heat on third heat-carrying agent pipeline (43)
Device (8), the second heat-carrying agent pipeline (42) and third heat-carrying agent pipeline (43), which converge, is incorporated to the 4th heat-carrying agent pipeline (44),
The wet exhaust pipe (51) of heat is connected to the lower part for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of secondary steam pipeline (61) is connected to the upper outlet end of regenerator (4), secondary steam pipeline (61) it is another
End is connected to the arrival end of regeneration coil pipe (5), the secondary steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) are equipped with, steam drainage device (11) is arranged in the pipe with regeneration coil pipe (5) outlet
On the road, regeneration coil pipe (5) is arranged in the inside of regenerator (4),
One end of weak solution pipeline (76) with absorb spray column (1) lower part outlet end be connected to, weak solution pipeline (76) it is another
End is connected to the arrival end of regenerator (4) lower part, absorbs the outlet end of spray column (1) lower part and the entrance of regenerator (4) lower part
Heat collector (8), solution regenerator (6) and restriction expansion device (9) are disposed on weak solution pipeline (76) between end,
One end of concentrated solution pipeline (71) is connected to the outlet end on regenerator (4) top, the other end of concentrated solution pipeline (71) with
The arrival end of spray equipment (2) is connected to, dense molten between the outlet end on regenerator (4) top and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed on liquid pipeline (71).
4. a kind of wet exhaust gas total heat recovery system of absorption type heat for no longer needing to heat source, it includes absorbing spray column (1), spray dress
Set (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), heat collector (8), the first load
Heat medium pipeline (41), the wet exhaust pipe (51) of heat, dry and cold exhaust pipe (56), secondary steam pipeline (61), concentrated solution pipeline
(71) and weak solution pipeline (76), it is characterised in that: it further includes absorption heat-exchange coil pipe (3), restriction expansion device (9), steam
Compressor (10) and steam drainage device (11),
Spray equipment (2) and absorption heat-exchange coil pipe (3) are set gradually from top to bottom inside spray column (1) absorbing,
Heat collector (8) and absorption heat-exchange coil pipe (3) are connected on first heat-carrying agent pipeline (41),
The wet exhaust pipe (51) of heat is connected to the lower part for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of secondary steam pipeline (61) is connected to the upper outlet end of regenerator (4), secondary steam pipeline (61) it is another
End is connected to the arrival end of regeneration coil pipe (5), the secondary steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) are equipped with, steam drainage device (11) is arranged in the pipe with regeneration coil pipe (5) outlet
On the road, regeneration coil pipe (5) is arranged in the inside of regenerator (4),
One end of weak solution pipeline (76) with absorb spray column (1) lower part exit be connected to, weak solution pipeline (76) it is another
End is connected to the arrival end of regenerator (4) lower part, absorbs the exit of spray column (1) lower part and the entrance of regenerator (4) lower part
Heat collector (8), solution regenerator (6) and restriction expansion device (9) are disposed on weak solution pipeline (76) between end,
One end of concentrated solution pipeline (71) is connected to the outlet end on regenerator (4) top, the other end of concentrated solution pipeline (71) with
The arrival end of spray equipment (2) is connected to, dense molten between the outlet end on regenerator (4) top and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed on liquid pipeline (71).
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| CN201611199007.6A CN106839514B (en) | 2016-12-22 | 2016-12-22 | A kind of wet exhaust gas total heat recovery system of absorption type heat no longer needing to heat source |
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| CN109351162B (en) * | 2018-12-06 | 2024-03-12 | 清华大学 | Flue gas treatment equipment of high-temperature heating system |
| CN111442568A (en) * | 2020-04-11 | 2020-07-24 | 青岛达能环保设备股份有限公司 | Waste heat recycling system based on low-energy-consumption hot air supply |
| CN114873670A (en) * | 2022-03-17 | 2022-08-09 | 国网河北省电力有限公司电力科学研究院 | Power station high concentration waste water boiler flue gas evaporation plant |
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| JP2001174100A (en) * | 1999-12-21 | 2001-06-29 | Takuma Co Ltd | Waste heat recovery absorption hot and chilled water generator |
| CN2856872Y (en) * | 2005-03-30 | 2007-01-10 | 林毅 | Lithium bromide double-effective absorbing, directly heating air conditioner for engine |
| CN1760607A (en) * | 2005-11-11 | 2006-04-19 | 东南大学 | Solar energy accumulation type equipment of water chilling unit set, and refrigeration method of evaporation and refrigeration |
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Effective date of registration: 20191118 Address after: 150000 No.8, haping Road, Xiangfang District, Harbin City, Heilongjiang Province Patentee after: Harbin Hanqing energy conservation and Environmental Protection Technology Co., Ltd Address before: 150090 No. 73, the Yellow River Road, Nangang District, Heilongjiang, Harbin Patentee before: Zhang Chenghu |
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