CN106839514A - A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source - Google Patents
A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source Download PDFInfo
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- CN106839514A CN106839514A CN201611199007.6A CN201611199007A CN106839514A CN 106839514 A CN106839514 A CN 106839514A CN 201611199007 A CN201611199007 A CN 201611199007A CN 106839514 A CN106839514 A CN 106839514A
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 80
- 239000002912 waste gas Substances 0.000 title claims abstract description 36
- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 155
- 230000008929 regeneration Effects 0.000 claims abstract description 85
- 238000011069 regeneration method Methods 0.000 claims abstract description 85
- 230000006835 compression Effects 0.000 claims abstract description 26
- 238000007906 compression Methods 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 61
- 239000006096 absorbing agent Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 7
- 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
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 230000009183 running 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
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material 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
- 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
-
- 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 waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source, it is related to a kind of heat recovery system of hot wet waste gas.The present invention solve the absorption total heat recovery system of existing spray column in extension process exist need additional high temperature thermal source and cooling thermal source, the high problem of construction costs.One end of indirect steam pipeline of the invention connects with regenerator, the other end of indirect steam pipeline is connected with regeneration coil pipe, indirect steam pipeline between regenerator and regeneration coil pipe is provided with vapour compression machine, the port of export of regeneration coil pipe is connected with indirect steam pipeline, the indirect steam pipeline connected with regeneration coil pipe is provided with steam drainage device, to absorb and be disposed with heat collector, solution regenerator and restriction expansion device on the weak solution pipeline between the port of export and the arrival end of regenerator bottom of spray column bottom.The present invention is in the hot wet waste gas absorption formula total heat recovery engineering for lacking high temperature heat source and cooling thermal source.
Description
Technical field
The present invention relates to a kind of heat recovery system of hot wet waste gas, and in particular to a kind of absorption type heat that need not regenerate thermal source
Wet waste gas total heat recovery system.
Background technology
The wet waste gas of heat contains the latent heat for having a large amount of vapor, the existing absorption total heat recovery system such as Fig. 5 institutes of spray column
Show, mainly by spray absorber 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, hot wet exhaust pipe 51, 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,
Using the hygroscopicity of hygroscopic solution the total heat recovery of hot wet waste gas can be carried out in spray absorber 1 and is heated by heat collector 8
Thermal medium, realizes that heat is shifted again, but after hygroscopic solution absorption vapor, concentration reduction becomes weak solution, and weak solution must
Concentrating regenerative must be heated by regeneration coil pipe 5 in regenerator 4 can form concentrated solution and be continued for hot wet useless
The total heat recovery of gas;And the indirect steam produced by weak solution concentration can not directly be vented, it is also necessary to by condensing heat exchanger
15 carry out cooling condensation.Therefore the existing absorption total heat recovery system of spray column needs the additional high temperature thermal source to carry out weak solution
Concentrating regenerative, it is necessary to extra cooling thermal source carry out indirect steam cooling condensation, not only consume extra heat and cold, make
Into energy waste, and needs heating and cooling procedure respectively need a set of thermal source and cold source equipment system, increased the throwing of system
Money.Extra high temperature heat source and cooling thermal source is needed, and high investment is that the absorption full heat of the existing spray column of restriction is returned
Receive the principal element of System Market popularization and application.
To sum up, the absorption total heat recovery system of existing spray column in extension process exist need additional high temperature thermal source and
Cooling thermal source, the high problem of construction costs.
The content of the invention
Exist in extension process the invention aims to solve the absorption total heat recovery system of existing spray column
Need additional high temperature thermal source and cooling thermal source, the high problem of construction costs.And then there is provided a kind of suction that need not regenerate thermal source
The wet waste gas total heat recovery system of receipts formula heat.
The technical scheme is that:
A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source, it includes spray absorber, spray dress
Put, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, heat collector, the first heat-carrying agent pipeline, hot wet waste gas
Pipeline, dry and cold exhaust pipe, indirect steam pipeline, concentrated solution pipeline and weak solution pipeline, it also includes restriction expansion device, steams
Vapour compressor and steam drainage device, heat collector is connected on the first heat-carrying agent pipeline,
The wet exhaust pipe of heat is connected with the bottom for absorbing spray column, and dry and cold exhaust pipe connects with the top for absorbing spray column
It is logical,
One end of indirect steam pipeline connects with the upper outlet end of regenerator, the other end and the regeneration of indirect steam pipeline
The arrival end connection of heat exchange coil, the indirect steam pipeline between regenerator and regeneration coil pipe is provided with vapour compression machine,
The port of export of regeneration coil pipe is connected with indirect steam pipeline, and the indirect steam pipeline connected with regeneration coil pipe is provided with
Steam drainage device, regeneration coil pipe is arranged on the inside of regenerator, one end and the absorption spray column bottom of weak solution pipeline
Port of export connection, the other end of weak solution pipeline connects with the arrival end of regenerator bottom, the outlet of absorption spray column bottom
Heat collector, solution regenerator and throttling expansion are disposed with weak solution pipeline between end and the arrival end of regenerator bottom
Device,
One end of concentrated solution pipeline connects with the upper outlet end of regenerator, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed with the concentrated solution pipeline between the upper outlet end of regenerator and the arrival end of spray equipment
Solution regenerator and solution circulation pump, spray equipment are arranged on the inside for absorbing spray column.
A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source, it includes spray absorber, spray dress
Put, it is regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, the first heat-carrying agent pipeline, hot wet exhaust pipe, dry
Cold exhaust pipe, indirect steam pipeline, concentrated solution pipeline and weak solution pipeline, it also includes absorption heat-exchange coil pipe, throttling expansion
Device, vapour compression machine and steam drainage device,
Set gradually spray equipment and absorption heat-exchange coil pipe 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 with the bottom for absorbing spray column, and dry and cold exhaust pipe connects with the top for absorbing spray column
It is logical,
One end of indirect steam pipeline connects with the upper outlet end of regenerator, the other end and the regeneration of indirect steam pipeline
The arrival end connection of heat exchange coil, the indirect steam pipeline between regenerator and regeneration coil pipe is provided with vapour compression machine,
The port of export of regeneration coil pipe is connected with indirect steam pipeline, and the indirect steam pipeline connected with regeneration coil pipe is provided with
Steam drainage device, regeneration coil pipe is arranged on the inside of regenerator, one end and the absorption spray column bottom of weak solution pipeline
Port of export connection, the other end of weak solution pipeline connects with the arrival end of regenerator bottom, the outlet of absorption spray column bottom
Solution regenerator and restriction expansion device are disposed with weak solution pipeline between end and the arrival end of regenerator bottom,
One end of concentrated solution pipeline connects with the port of export on regenerator top, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed with the concentrated solution pipeline between the port of export on regenerator top and the arrival end of spray equipment
Solution regenerator and solution circulation pump.
A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source, it includes spray absorber, spray dress
Put, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, heat collector, the first heat-carrying agent pipeline, hot wet waste gas
Pipeline, dry and cold exhaust pipe, indirect steam pipeline, concentrated solution pipeline and weak solution pipeline, it also includes absorption heat-exchange coil pipe, section
Stream expansion gear, vapour compression machine, steam drainage device, the second heat-carrying agent pipeline, the 3rd heat-carrying agent pipeline and the 4th carry
Heat medium pipeline,
Set gradually spray equipment and absorption heat-exchange coil pipe 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 the 3rd heat-carrying agent pipeline, the
Absorption heat-exchange coil pipe is connected on two heat-carrying agent pipelines, heat collector, the second heat-carrying agent pipe are connected on the 3rd heat-carrying agent pipeline
Road and the 3rd heat-carrying agent pipeline converge and are incorporated to the 4th heat-carrying agent pipeline,
The wet exhaust pipe of heat is connected with the bottom for absorbing spray column, and dry and cold exhaust pipe connects with the top for absorbing spray column
It is logical,
One end of indirect steam pipeline connects with the upper outlet end of regenerator, the other end and the regeneration of indirect steam pipeline
The arrival end connection of heat exchange coil, the indirect steam pipeline between regenerator and regeneration coil pipe is provided with vapour compression machine,
The port of export of regeneration coil pipe is connected with indirect steam pipeline, and the indirect steam pipeline connected with regeneration coil pipe is provided with
Steam drainage device, regeneration coil pipe is arranged on the inside of regenerator,
One end of weak solution pipeline connects with the port of export for absorbing spray column bottom, the other end and the regeneration of weak solution pipeline
The arrival end connection of device bottom, absorbs the weak solution pipeline between the port of export and the arrival end of regenerator bottom of spray column bottom
On be disposed with heat collector, solution regenerator and restriction expansion device,
One end of concentrated solution pipeline connects with the port of export on regenerator top, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed with the concentrated solution pipeline between the port of export on regenerator top and the arrival end of spray equipment
Solution regenerator and solution circulation pump.
A kind of wet waste gas total heat recovery system of the absorption type heat that need not regenerate thermal source, it includes spray absorber, spray dress
Put, regenerator, regeneration coil pipe, solution regenerator, solution circulation pump, heat collector, the first heat-carrying agent pipeline, hot wet waste gas
Pipeline, dry and cold exhaust pipe, indirect steam pipeline, concentrated solution pipeline and weak solution pipeline, it also includes absorption heat-exchange coil pipe, section
Stream expansion gear, vapour compression machine and steam drainage device,
Set gradually spray equipment and absorption heat-exchange coil pipe 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 with the bottom for absorbing spray column, and dry and cold exhaust pipe connects with the top for absorbing spray column
It is logical,
One end of indirect steam pipeline connects with the upper outlet end of regenerator, the other end and the regeneration of indirect steam pipeline
The arrival end connection of heat exchange coil, the indirect steam pipeline between regenerator and regeneration coil pipe is provided with vapour compression machine,
The port of export of regeneration coil pipe is connected with indirect steam pipeline, and the indirect steam pipeline connected with regeneration coil pipe is provided with
Steam drainage device, regeneration coil pipe is arranged on the inside of regenerator,
One end of weak solution pipeline connects with the exit for absorbing spray column bottom, the other end and the regeneration of weak solution pipeline
The arrival end connection of device bottom, absorbs the weak solution pipeline between the exit of spray column bottom and the arrival end of regenerator bottom
On be disposed with heat collector, solution regenerator and restriction expansion device,
One end of concentrated solution pipeline connects with the port of export on regenerator top, the other end and spray equipment of concentrated solution pipeline
Arrival end connection, be disposed with the concentrated solution pipeline between the port of export on regenerator top and the arrival end of spray equipment
Solution regenerator and solution circulation pump.
The present invention has the following effects that compared with prior art:
1st, the present invention is compressed after boosting using vapour compression machine to indirect steam, realizes the condensation of indirect steam
Temperature the heat of condensation of indirect steam can be used for the concentration and evaporation heat of solution, without volume higher than the explosive evaporation temperature of solution
Outer high temperature heat source and cooling thermal source, reduces energy ezpenditure, has saved the energy.
2nd, weak solution enters back into regenerator after being depressured by restriction expansion device in the present invention, realizes regenerator
Pressure less than the pressure for absorbing spray column, lower pressure environment is advantageously in the explosive evaporation for reducing solution in regenerator
The energy resource consumption of temperature and reduction vapour compression machine.
3rd, the regeneration coil pipe in the present invention is both the firing equipment of solution concentrating regenerative, is also cold indirect steam cooling
Solidifying heat-releasing apparatus, simplify system architecture, save system cost and investment.
4th, present system simple structure, without supporting extra cold and heat source apparatus, operation maintenance is convenient, and system operation can
It is high by property.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of specific embodiment of the invention;
Fig. 2 is the systematic schematic diagram of specific embodiment of the invention two;
Fig. 3 is the systematic schematic diagram of specific embodiment of the invention three;
Fig. 4 is the systematic schematic diagram of 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 one:Present embodiment, a kind of suction that need not regenerate thermal source of present embodiment are illustrated with reference to Fig. 1
The receipts formula wet waste gas total heat recovery system of heat, it includes spray absorber 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, hot wet exhaust pipe 51, dry and cold exhaust pipe
56th, indirect steam pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it also 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 with the bottom for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion connects,
One end of indirect steam pipeline 61 connects with the upper outlet end of regenerator 4, the other end of indirect steam pipeline 61
Arrival end with regeneration coil pipe 5 is connected, and the indirect steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is provided with
Vapour compression machine 10, the port of export of regeneration coil pipe 5 is connected with indirect steam pipeline 61, is connected with regeneration coil pipe 5
Indirect steam pipeline 61 is provided with steam drainage device 11, and regeneration coil pipe 5 is arranged on the inside of regenerator 4, weak solution pipe
The one end on road 76 connects with the port of export for absorbing spray column 1 bottom, the other end of weak solution pipeline 76 and entering for the bottom of regenerator 4
The connection of mouth end, absorbs on the weak solution pipeline 76 between the port of export and the arrival end of the bottom of regenerator 4 of the bottom of spray column 1 successively
Heat collector 8, solution regenerator 6 and restriction expansion device 9 are provided with,
One end of concentrated solution pipeline 71 connects with the upper outlet end of regenerator 4, the other end and the spray of concentrated solution pipeline 71
The arrival end connection of shower device 2, 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, spray equipment 2 is arranged on the inside for absorbing spray column 1.
The operation logic of present embodiment:
Heat-carrying agent enters heat collector 8 and is heated by the dilute hygroscopic solution of high temperature by the first heat-carrying agent pipeline 41, realizes heat
The recovery of amount.Because heat collector 8 is arranged at the outside for absorbing spray column 1, so present embodiment is referred to as cooling type embodiment party
Case.
The wet waste gas of heat enters absorption spray column 1 by hot wet exhaust pipe 51 from bottom, with spray dress in absorption spray column 1
The dense hygroscopic solution contact of 2 sprays is put, heat and mass transfer process, release sensible heat and latent heat is carried out and is directly heated hygroscopic solution, carried
The temperature of hygroscopic solution is risen, the low temperature drying waste gas after heat release is flowed out by dry and cold exhaust pipe 56 and absorbs spray column 1.
After the vapor and sensible heat in absorbing hot wet waste gas in spray column 1 is absorbed, concentration reduces to be formed hygroscopic solution
Dilute hygroscopic solution and temperature gets a promotion, dilute hygroscopic solution absorbing the bottom collection of 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, and being preheated by dense hygroscopic solution in solution regenerator 6, dilute hygroscopic solution is swollen finally by throttling
Enter regenerator 4 after the reducing pressure by regulating flow of swollen device 9, dilute hygroscopic solution is in regenerator 4 by regeneration coil pipe 5 by boosting it
Indirect steam afterwards carries out heating concentration, produces indirect steam, and the concentration of hygroscopic solution is improved to form dense hygroscopic solution, dense
Hygroscopic solution is driven by solution circulation pump 7, and spray equipment 2, and the heat release in solution regenerator 6 are flowed to by concentrated solution pipeline 71
And dilute hygroscopic solution is preheated, temperature reduction, the dense hygroscopic solution of low temperature is by spray equipment 2 in absorption spray column 1
Sprayed, dense hygroscopic solution carries out heat and mass transfer process, hygroscopic solution concentration drop with the hot wet waste gas absorbed in spray column 1
Low, temperature is raised, and forms high temperature weak solution, constitutes solution circulation.
Restriction expansion device of the invention 9 is arranged on weak solution pipeline, and solution circulation pump 7 is arranged on concentrated solution pipeline
Set-up mode, it is ensured that absorb spray column 1 pressure higher than regenerator 4 pressure, built the environment under low pressure of regenerator 4,
Explosive evaporation temperature its purpose is to reduce solution in regenerator 4, while the energy resource consumption of vapour compression machine is reduced, because
According to solution and the hot physical property and state rule of water, the pressure of indirect steam is higher, and the sealing property requirement to compressor is higher,
And realize that the energy consumption that identical condensation temperature lifting amplitude is consumed is higher.The pressure of regenerator is less than the pressure for absorbing spray column
Power, this is a significant difference with the absorption total heat recovery system of existing spray column of the invention.
The indirect steam produced in regenerator of the invention 4 is flowed out and in vapour compression machine 10 by indirect steam pipeline 61
Boost in pressure (accordingly the condensation temperature of indirect steam is also significantly enhanced), the secondary steaming after boosting are carried out under effect
Vapour is into exothermic condensation in regeneration coil pipe 5 into liquid, while the weak solution in thermal regeneration device 4 is concentrated through regeneration, it is complete
Indirect steam into condensation heat transfer realizes that pressure separates by steam trap connection 11 and the external world, while by aqueous water discharge system.
The setting of vapour compression machine of the invention 10 realizes boost in pressure and the condensation temperature lifting of indirect steam, so that
So that the temperature of indirect steam is higher than the temperature of solution in regenerator 4, the condensation heat of indirect steam can be used for solution concentration again
Raw heating, realizes recycling for condensation heat and regenerated heat, without additional high temperature thermal source and cooling thermal source, reduces the energy and disappears
Consumption.
When hot wet waste gas water capacity is medium, and smoke content it is higher when, be adapted to use the present embodiment.
Specific embodiment two:Present embodiment, a kind of suction that need not regenerate thermal source of present embodiment are illustrated with reference to Fig. 2
The receipts formula wet waste gas total heat recovery system of heat, it includes spray absorber 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, hot wet exhaust pipe 51, dry and cold exhaust pipe 56, secondary steaming
Vapor pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it also includes absorption heat-exchange coil pipe 3, restriction expansion device 9, steam
Compressor 10 and steam drainage device 11,
Set gradually spray equipment 2 and absorption heat-exchange coil pipe 3 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 with the bottom for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion connects,
One end of indirect steam pipeline 61 connects with the upper outlet end of regenerator 4, the other end of indirect steam pipeline 61
Arrival end with regeneration coil pipe 5 is connected, and the indirect steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is provided with
Vapour compression machine 10, the port of export of regeneration coil pipe 5 is connected with indirect steam pipeline 61, is connected with regeneration coil pipe 5
Indirect steam pipeline 61 is provided with steam drainage device 11, and regeneration coil pipe 5 is arranged on the inside of regenerator 4, weak solution pipe
The one end on road 76 connects with the port of export for absorbing spray column 1 bottom, the other end of weak solution pipeline 76 and entering for the bottom of regenerator 4
The connection of mouth end, absorbs on the weak solution pipeline 76 between the port of export and the arrival end of the bottom of regenerator 4 of the bottom of spray column 1 successively
Solution regenerator 6 and restriction expansion device 9 are provided with,
One end of concentrated solution pipeline 71 connects with the port of export on the top of regenerator 4, the other end and the spray of concentrated solution pipeline 71
The arrival end connection of shower device 2, the concentrated solution pipeline 71 between the port of export on the top of regenerator 4 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:
Present embodiment is with the difference of specific embodiment one:Present embodiment is eliminated positioned at absorption spray column 1
Outside heat collector 8, and the full heat of the hot wet waste gas that hygroscopic solution is absorbed, are changed by absorption inside absorption spray column 1
Hot coil 3 heats heat-carrying agent, realizes the recovery of hot wet waste-gas heat.Because absorption heat-exchange coil pipe 3 is arranged at absorption spray column 1
Inside, so present embodiment typically may be simply referred to as internally cooled embodiment.Other runnings and principle and specific implementation
Mode one is identical.
When hot wet waste gas water capacity is higher, and smoke content it is relatively low when, be adapted to use the present embodiment.
Specific embodiment three:Present embodiment, a kind of suction that need not regenerate thermal source of present embodiment are illustrated with reference to Fig. 3
The receipts formula wet waste gas total heat recovery system of heat, it includes spray absorber 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, hot wet exhaust pipe 51, dry and cold exhaust pipe
56th, indirect steam pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it is also filled including absorption heat-exchange coil pipe 3, throttling expansion
Put 9, vapour compression machine 10, steam drainage device 11, the second heat-carrying agent pipeline 42, the 3rd heat-carrying agent pipeline 43 and the 4th load
Heat medium pipeline 44,
Set gradually spray equipment 2 and absorption heat-exchange coil pipe 3 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 the 3rd heat-carrying agent pipeline
43, absorption heat-exchange coil pipe 3 is connected on the second heat-carrying agent pipeline 42, heat collector 8, second are connected on the 3rd heat-carrying agent pipeline 43
The heat-carrying agent pipeline 43 of heat-carrying agent pipeline 42 and the 3rd converges and is incorporated to the 4th heat-carrying agent pipeline 44,
The wet exhaust pipe 51 of heat is connected with the bottom for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion connects,
One end of indirect steam pipeline 61 connects with the upper outlet end of regenerator 4, the other end of indirect steam pipeline 61
Arrival end with regeneration coil pipe 5 is connected, and the indirect steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is provided with
Vapour compression machine 10, the port of export of regeneration coil pipe 5 is connected with indirect steam pipeline 61, is connected with regeneration coil pipe 5
Indirect steam pipeline 61 is provided with steam drainage device 11, and regeneration coil pipe 5 is arranged on the inside of regenerator 4,
One end of weak solution pipeline 76 connects with the port of export for absorbing the bottom of spray column 1, the other end of weak solution pipeline 76
Arrival end with the bottom of regenerator 4 is connected, between the port of export and the arrival end of the bottom of regenerator 4 of absorption spray column 1 bottom
Heat collector 8, solution regenerator 6 and restriction expansion device 9 are disposed with weak solution pipeline 76,
One end of concentrated solution pipeline 71 connects with the port of export on the top of regenerator 4, the other end and the spray of concentrated solution pipeline 71
The arrival end connection of shower device 2, the concentrated solution pipeline 71 between the port of export on the top of regenerator 4 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:
Present embodiment is with the difference of specific embodiment one:Present embodiment is provided with to be located to absorb and sprays simultaneously
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 leads up to the second heat-carrying agent pipeline 42 and enters absorption heat-exchange coil pipe 3 and be heated into two-way is divided into after system, and one
Road enters heat collector 8 and is heated by the 3rd heat-carrying agent pipeline 43, and the last heated heat-carrying agent of two-way converges and is incorporated to the
The outflow system of four heat-carrying agent pipeline 44, realizes the recovery of heat.Present embodiment typically may be simply referred to as double cold moulds in parallel and implement
Scheme.Other runnings and principle are identical with implementation method one.
When hot wet waste gas water capacity is medium, and smoke content it is relatively low when, be adapted to use the present embodiment.
Specific embodiment four:Present embodiment, a kind of suction that need not regenerate thermal source of present embodiment are illustrated with reference to Fig. 4
The receipts formula wet waste gas total heat recovery system of heat, it includes spray absorber 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, hot wet exhaust pipe 51, dry and cold exhaust pipe
56th, indirect steam pipeline 61, concentrated solution pipeline 71 and weak solution pipeline 76, it is also filled including absorption heat-exchange coil pipe 3, throttling expansion
9, vapour compression machine 10 and steam drainage device 11 are put,
Set gradually spray equipment 2 and absorption heat-exchange coil pipe 3 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 the position of absorption heat-exchange coil pipe 3 do not limit)
The wet exhaust pipe 51 of heat is connected with the bottom for absorbing spray column 1, and dry and cold exhaust pipe 56 is upper with absorption spray column 1
Portion connects,
One end of indirect steam pipeline 61 connects with the upper outlet end of regenerator 4, the other end of indirect steam pipeline 61
Arrival end with regeneration coil pipe 5 is connected, and the indirect steam pipeline 61 between regenerator 4 and regeneration coil pipe 5 is provided with
Vapour compression machine 10, the port of export of regeneration coil pipe 5 is connected with indirect steam pipeline 61, is connected with regeneration coil pipe 5
Indirect steam pipeline 61 is provided with steam drainage device 11, and regeneration coil pipe 5 is arranged on the inside of regenerator 4,
One end of weak solution pipeline 76 connects with the exit for absorbing the bottom of spray column 1, the other end of weak solution pipeline 76
Arrival end with the bottom of regenerator 4 is connected, between the exit of absorption spray column 1 bottom and the arrival end of the bottom of regenerator 4
Heat collector 8, solution regenerator 6 and restriction expansion device 9 are disposed with weak solution pipeline 76,
One end of concentrated solution pipeline 71 connects with the port of export on the top of regenerator 4, the other end and the spray of concentrated solution pipeline 71
The arrival end connection of shower device 2, the concentrated solution pipeline 71 between the port of export on the top of regenerator 4 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:
Present embodiment is with the difference of specific embodiment one:Present embodiment is provided with to be located to absorb and sprays simultaneously
Heat collector 8 outside tower 1 and the absorption heat-exchange coil pipe 3 inside absorption spray column 1, heat-carrying agent can be initially entered and take heat
Device 8 carries out first time heating, and entering back into absorption heat-exchange coil pipe 3 carries out the second heating, and this implementation method typically 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 implementation method typically may be simply referred to as double cold mould embodiments of connecting.Other runnings and original
Reason is identical with implementation method one.
When hot wet waste gas water capacity is relatively low, and smoke content it is relatively low when, be adapted to using the double cold embodiments of positive series connection.
When hot wet waste gas water capacity is higher, and smoke content it is relatively low when, be adapted to using falling double cold embodiments of connecting.
Claims (4)
1. the wet waste gas total heat recovery system of a kind of absorption type heat that need not regenerate thermal source, it includes spray absorber (1), spray dress
Put (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), heat collector (8), the first load
Heat medium pipeline (41), hot wet exhaust pipe (51), dry and cold exhaust pipe (56), indirect steam pipeline (61), concentrated solution pipeline
And weak solution pipeline (76) (71), it is characterised in that:It also includes restriction expansion device (9), vapour compression machine (10) and steam
Steam trap connection (11),
Heat collector (8) is connected on first heat-carrying agent pipeline (41),
The wet exhaust pipe (51) of heat connect with the bottom for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of indirect steam pipeline (61) connects with the upper outlet end of regenerator (4), indirect steam pipeline (61) it is another
End connects with the arrival end of regeneration coil pipe (5), the indirect steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) is provided with, the port of export of regeneration coil pipe (5) is connected with indirect steam pipeline (61), with regeneration
The indirect steam pipeline (61) of heat exchange coil (5) connection is provided with steam drainage device (11), and regeneration coil pipe (5) is arranged on
The inside of regenerator (4), one end of weak solution pipeline (76) connects with the port of export for absorbing spray column (1) bottom, weak solution pipe
The other end on road (76) is connected with the arrival end of regenerator (4) bottom, absorbs the port of export and regenerator of spray column (1) bottom
(4) heat collector (8), solution regenerator (6) and throttling are disposed with the weak solution pipeline (76) between the arrival end of bottom
Expansion gear (9),
One end of concentrated solution pipeline (71) connects with the upper outlet end of regenerator (4), the other end of concentrated solution pipeline (71) with
The arrival end connection of spray equipment (2), it is 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 with liquid pipeline (71), spray equipment (2) is arranged on absorption spray
The inside of tower (1).
2. the wet waste gas total heat recovery system of a kind of absorption type heat that need not regenerate thermal source, it includes spray absorber (1), spray dress
Put (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), the first heat-carrying agent pipeline
(41), hot wet exhaust pipe (51), dry and cold exhaust pipe (56), indirect steam pipeline (61), concentrated solution pipeline (71) and dilute molten
Liquid pipeline (76), it is characterised in that:It also includes absorption heat-exchange coil pipe (3), restriction expansion device (9), vapour compression machine (10)
With steam drainage device (11),
Set gradually spray equipment (2) and absorption heat-exchange coil pipe (3) 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 connect with the bottom for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of indirect steam pipeline (61) connects with the upper outlet end of regenerator (4), indirect steam pipeline (61) it is another
End connects with the arrival end of regeneration coil pipe (5), the indirect steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) is provided with, the port of export of regeneration coil pipe (5) is connected with indirect steam pipeline (61), with regeneration
The indirect steam pipeline (61) of heat exchange coil (5) connection is provided with steam drainage device (11), and regeneration coil pipe (5) is arranged on
The inside of regenerator (4), one end of weak solution pipeline (76) connects with the port of export for absorbing spray column (1) bottom, weak solution pipe
The other end on road (76) is connected with the arrival end of regenerator (4) bottom, absorbs the port of export and regenerator of spray column (1) bottom
(4) solution regenerator (6) and restriction expansion device are disposed with the weak solution pipeline (76) between the arrival end of bottom
(9),
One end of concentrated solution pipeline (71) connects with the port of export on regenerator (4) top, the other end of concentrated solution pipeline (71) with
The arrival end connection of spray equipment (2), it is dense molten between the port of export on regenerator (4) top and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed with liquid pipeline (71).
3. the wet waste gas total heat recovery system of a kind of absorption type heat that need not regenerate thermal source, it includes spray absorber (1), spray dress
Put (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), heat collector (8), the first load
Heat medium pipeline (41), hot wet exhaust pipe (51), dry and cold exhaust pipe (56), indirect steam pipeline (61), concentrated solution pipeline
And weak solution pipeline (76) (71), it is characterised in that:It also 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), the 3rd heat-carrying agent pipeline (43) and the 4th carry
Heat medium pipeline (44),
Set gradually spray equipment (2) and absorption heat-exchange coil pipe (3) 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 the 3rd heat-carrying agent pipeline
(43) absorption heat-exchange coil pipe (3), is connected on the second heat-carrying agent pipeline (42), connection takes heat on the 3rd heat-carrying agent pipeline (43)
Device (8), the second heat-carrying agent pipeline (42) and the 3rd heat-carrying agent pipeline (43) converge and are incorporated to the 4th heat-carrying agent pipeline (44),
The wet exhaust pipe (51) of heat connect with the bottom for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of indirect steam pipeline (61) connects with the upper outlet end of regenerator (4), indirect steam pipeline (61) it is another
End connects with the arrival end of regeneration coil pipe (5), the indirect steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) is provided with, the port of export of regeneration coil pipe (5) is connected with indirect steam pipeline (61), with regeneration
The indirect steam pipeline (61) of heat exchange coil (5) connection is provided with steam drainage device (11), and regeneration coil pipe (5) is arranged on
The inside of regenerator (4),
One end of weak solution pipeline (76) with absorb spray column (1) bottom the port of export connect, weak solution pipeline (76) it is another
End connects with the arrival end of regenerator (4) bottom, absorbs the port of export of spray column (1) bottom and the entrance of regenerator (4) bottom
Heat collector (8), solution regenerator (6) and restriction expansion device (9) are disposed with weak solution pipeline (76) between end,
One end of concentrated solution pipeline (71) connects with the port of export on regenerator (4) top, the other end of concentrated solution pipeline (71) with
The arrival end connection of spray equipment (2), it is dense molten between the port of export on regenerator (4) top and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed with liquid pipeline (71).
4. the wet waste gas total heat recovery system of a kind of absorption type heat that need not regenerate thermal source, it includes spray absorber (1), spray dress
Put (2), regenerator (4), regeneration coil pipe (5), solution regenerator (6), solution circulation pump (7), heat collector (8), the first load
Heat medium pipeline (41), hot wet exhaust pipe (51), dry and cold exhaust pipe (56), indirect steam pipeline (61), concentrated solution pipeline
And weak solution pipeline (76) (71), it is characterised in that:It also includes absorption heat-exchange coil pipe (3), restriction expansion device (9), steam
Compressor (10) and steam drainage device (11),
Set gradually spray equipment (2) and absorption heat-exchange coil pipe (3) 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 connect with the bottom for absorbing spray column (1), dry and cold exhaust pipe (56) and absorption spray column (1)
Top connection,
One end of indirect steam pipeline (61) connects with the upper outlet end of regenerator (4), indirect steam pipeline (61) it is another
End connects with the arrival end of regeneration coil pipe (5), the indirect steam pipeline between regenerator (4) and regeneration coil pipe (5)
(61) vapour compression machine (10) is provided with, the port of export of regeneration coil pipe (5) is connected with indirect steam pipeline (61), with regeneration
The indirect steam pipeline (61) of heat exchange coil (5) connection is provided with steam drainage device (11), and regeneration coil pipe (5) is arranged on
The inside of regenerator (4),
One end of weak solution pipeline (76) with absorb spray column (1) bottom exit connect, weak solution pipeline (76) it is another
End connects with the arrival end of regenerator (4) bottom, absorbs the exit of spray column (1) bottom and the entrance of regenerator (4) bottom
Heat collector (8), solution regenerator (6) and restriction expansion device (9) are disposed with weak solution pipeline (76) between end,
One end of concentrated solution pipeline (71) connects with the port of export on regenerator (4) top, the other end of concentrated solution pipeline (71) with
The arrival end connection of spray equipment (2), it is dense molten between the port of export on regenerator (4) top and the arrival end of spray equipment (2)
Solution regenerator (6) and solution circulation pump (7) are disposed with liquid pipeline (71).
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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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CN2856872Y (en) * | 2005-03-30 | 2007-01-10 | 林毅 | Lithium bromide double-effective absorbing, directly heating air conditioner for engine |
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