CN109990305A - A kind of coal-burning power plant's white plume cancellation element and working method - Google Patents
A kind of coal-burning power plant's white plume cancellation element and working method Download PDFInfo
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- CN109990305A CN109990305A CN201910207119.9A CN201910207119A CN109990305A CN 109990305 A CN109990305 A CN 109990305A CN 201910207119 A CN201910207119 A CN 201910207119A CN 109990305 A CN109990305 A CN 109990305A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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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
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of coal-burning power plant's white plume cancellation element and working methods, belong to coal-burning boiler field.The invention has the characteristics that including lithium-bromide absorption-type refrigerating machine, flue gas condenser, smoke re-heater, condensation cycle pump, reheat vapor cycle pump, condensation working medium circulation pipeline, reheating working medium circulation pipeline, driving steam condensation water lines and flue；Condensation cycle pump is mounted on condensation working medium circulation pipeline, and reheat vapor cycle pump is mounted on reheating working medium circulation pipeline；Flue gas condenser is connected with condensation working medium circulation pipeline, lithium-bromide absorption-type refrigerating machine is connected with condensation working medium circulation pipeline, smoke re-heater is connected with reheating working medium circulation pipeline, lithium-bromide absorption-type refrigerating machine is connected with reheating working medium circulation pipeline, smoke re-heater is connected with driving steam condensation water lines, and lithium-bromide absorption-type refrigerating machine is connected with driving steam condensation water lines.The present invention carries out cooling condensation to flue gas, reduces humidity of flue gas, eliminates coal-burning power plant's white plume phenomenon.
Description
Technical field
The present invention relates to a kind of coal-burning power plant's white plume cancellation element and working methods, belong to coal-burning boiler field.
Background technique
Limestone-gypsum Wet Flue Gas Desulfurization Process technique is widely used in China's coal fired generator set desulfurization system, which makes
Desulfurizing tower exit gas temperature is reduced to 45~55 DEG C, if these low temperature saturation wet flue gas directly enters big compression ring through chimney
Border condenses into fine droplet to the cold, because the refraction of light, scattering process show white or grey, to generate " white cigarette
Plumage " causes visual pollution.With deepening continuously for national environmental protection work, China each province and city are formulated and are put into effect successively in recent years
Relevant policies regulation is distinctly claimed coal-burning power plant and takes measures, and eliminates plume phenomenon.
Still in its infancy, the technique of mainstream can be attributed to three classes to domestic plume control at present: condensation method,
Heating condenses thermal method again.Condensation method can from flue gas recovery section moisture, but cool down after flue gas be still to be saturated wet steaming
Vapour cannot eliminate plume phenomenon although can weaken plume phenomenon to a certain extent；Heating is only reduction of flue gas
Relative humidity, there is no the water capacities for really reducing flue gas, therefore smoke temperature should be heated to higher temperature to avoid the occurrence of plume,
Energy consumption is larger；Condensation the advantages of thermal method combines aforementioned two kinds of technique again, that is, the moisture in flue gas is recycled, simultaneous removing cigarette
The pollutants such as part soluble-salt in gas, moreover it is possible to flue gas relative humidity is reduced, eliminates plume phenomenon, but the process system is complicated,
Construction and maintenance cost are relatively high.
If publication date is on October 02nd, 2018, in the Chinese patent of Patent No. 201721923594.9, one is disclosed
Kind wet plume eliminates system, uses condensation reheating method technique, and technical solution mainly includes the first cooling subsystem, second cold
But subsystem and heater, wherein the first cooling subsystem includes spray equipment, cyclic water tank, chemicals dosing plant and air cooling tower again
Deng.It can be seen that program equipment is various, system is complex, and the heat discharged during flue gas condensing by air cooling tower arrange to
Atmosphere does not carry out heat recovery, needs further improvement.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable in design
Coal-burning power plant's white plume cancellation element and working method.Coal-burning power plant's white plume cancellation element and working method rely on bromine
The function of changing the heat transfer of lithium-absorbing formula refrigeration machine, makes full use of flue gas itself waste heat, the work based on " reheating after first condensing "
Skill realizes that chimney disappears white and Industrial Water Saving purpose.
Technical solution used by the present invention solves the above problems is: the structure of coal-burning power plant's white plume cancellation element
Feature is: pumped including lithium-bromide absorption-type refrigerating machine, flue gas condenser, smoke re-heater, condensation cycle pump, reheat vapor cycle,
No.1 electric control valve, drain pipe, No. two electric control valves, condensation working medium circulation pipeline, reheating working medium circulation pipeline, driving are steamed
Vapour condensate line and flue；The condensation cycle pump is mounted on condensation working medium circulation pipeline, the reheat vapor cycle pump installation
On reheating working medium circulation pipeline；The No.1 electric control valve is mounted on drain pipe, the drain pipe and flue gas condenser
Connection, No. two electric control valves are mounted in driving steam condensation water lines；The flue gas condenser is followed with condensation working medium
Endless tube road is connected, and the refrigeration end of the lithium-bromide absorption-type refrigerating machine is connected with condensation working medium circulation pipeline, the flue gas reheat
Device is connected with reheating working medium circulation pipeline, radiating end and the reheating working medium circulation pipeline phase of the lithium-bromide absorption-type refrigerating machine
Even, the smoke re-heater is connected with driving steam condensation water lines, and the lithium-bromide absorption-type refrigerating machine and driving steam are solidifying
Pipeline is born water to be connected；The flue gas condenser is connected with flue, and the smoke re-heater is connected with flue.
Further, flue gas condenser of the present invention is indirect type gas-liquid heat-exchange.
Further, smoke re-heater of the present invention is indirect type gas-liquid heat-exchange.
A kind of working method of coal-burning power plant's white plume cancellation element, it is characterized in that: the working method
Steps are as follows: starting lithium-bromide absorption-type refrigerating machine, opens No. two electric control valves and is sent into driving steam, condenses working medium circulation pipe
Road is connected with the refrigeration end of lithium-bromide absorption-type refrigerating machine, condenses the working medium in working medium circulation pipeline in lithium bromide absorbing type refrigeration
Cooling forms cryogenic fluid in machine, opens condensation cycle pump for cryogenic fluid and is sent into flue gas condenser, neat stress is cold by flue gas
Cool down condensation when condenser, and the condensed water of generation is discharged by drain pipe, and the cryogenic fluid in flue gas condenser is heated by neat stress
Lithium-bromide absorption-type refrigerating machine is gone to cool down by condensing working medium circulation pipeline again afterwards, so circulation realizes that the cooling of neat stress removes
It is wet；Reheating working medium circulation pipeline is connected with the radiating end of lithium-bromide absorption-type refrigerating machine, and lithium-bromide absorption-type refrigerating machine will condense
The heat of heat and driving steam that working medium circulation pipeline absorbs is discharged into reheating working medium circulation pipeline together and generates high temperature refrigerant,
The driving that high temperature refrigerant is pumped by reheat vapor cycle send hot working fluid to smoke re-heater, for heating after flue gas condenser condenses
Neat stress, added again by the radiating end that reheating working medium circulation pipeline returns to lithium-bromide absorption-type refrigerating machine after high temperature refrigerant is cooling
The reheating that heat, so circulation realize neat stress；Driving steam condenses into temperature higher than flue gas through lithium-bromide absorption-type refrigerating machine
Middle warm water, by drive steam condensation water lines enter smoke re-heater further to flue gas carry out temperature raising, finally according to temperature
Degree matching principle returns to the condensate system of coal unit.
Further, the present invention is under different operating conditions, and by pumping to condensation cycle, reheat vapor cycle pumps and No. two motorized adjustments
The flow that the adjustment of valve carries out corresponding working medium is adjusted, and realizes effective, the energy-saving run of white plume cancellation element.
Compared with prior art, the present invention having the following advantages that and effect: (1) equipment is less, and system structure is relatively easy,
It is convenient for safeguarding, high reliablity.(2) waste heat discharged during flue gas condensing is sufficiently recycled, is applied to flue gas and reheats, and will
Driving steam condensate is further used for flue gas reheat temperature raising, utilizes the energy conservation of system waste heat promotion system to the greatest extent.(3) may be used
To carry out cooling condensation to flue gas, humidity of flue gas is reduced, realizes flue gas condensed water reuse and partial fume pollutant combined removal,
And sufficiently recycling system waste heat promotes smoke temperature, reduces flue gas relative humidity, eliminates coal-burning power plant's white plume phenomenon.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly and/or technical solution in the prior art, below will be to embodiment
And/or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is only some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of white plume cancellation element in coal-burning power plant's in the embodiment of the present invention.
In figure: lithium-bromide absorption-type refrigerating machine 1, flue gas condenser 2, smoke re-heater 3, condensation cycle pump 4, reheat vapor cycle
Pump 5, No.1 electric control valve 6,7, No. two electric control valves 8 of drain pipe, condensation working medium circulation pipeline 9, reheating working medium circulation pipe
Road 10, driving steam condensation water lines 11, flue 12.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to Fig. 1, coal-burning power plant's white plume cancellation element in the present embodiment include lithium-bromide absorption-type refrigerating machine 1,
Flue gas condenser 2, smoke re-heater 3, condensation cycle pump 4, reheat vapor cycle pump 5, No.1 electric control valve 6, drain pipe 7, two
Electric control valve 8, condensation working medium circulation pipeline 9, reheating working medium circulation pipeline 10, driving steam condensation water lines 11 and flue
12。
Condensation cycle pump 4 in the present embodiment is mounted on condensation working medium circulation pipeline 9, and reheat vapor cycle pump 5 is mounted on again
On hot working fluid circulation line 10；No.1 electric control valve 6 is mounted on drain pipe 7, and drain pipe 7 is connect with flue gas condenser 2, and two
Number electric control valve 8 is mounted in driving steam condensation water lines 11；Flue gas condenser 2 is connected with condensation working medium circulation pipeline 9,
The refrigeration end of lithium-bromide absorption-type refrigerating machine 1 is connected with condensation working medium circulation pipeline 9, smoke re-heater 3 and reheating working medium circulation
Pipeline 10 be connected, the radiating end of lithium-bromide absorption-type refrigerating machine 1 is connected with reheating working medium circulation pipeline 10, smoke re-heater 3 and
Steam condensation water lines 11 are driven to be connected, lithium-bromide absorption-type refrigerating machine 1 is connected with driving steam condensation water lines 11；Flue gas is cold
Condenser 2 is connected with flue 12, and smoke re-heater 3 is connected with flue 12.
Flue gas condenser 2 in the present embodiment is indirect type gas-liquid heat-exchange, and smoke re-heater 3 is indirect type gas-liquid heat exchange
Device.
The step of working method of coal-burning power plant's white plume cancellation element in the present embodiment, is as follows.
Start lithium-bromide absorption-type refrigerating machine 1, opens No. two electric control valves 8 and be sent into driving steam, condense working medium circulation
Pipeline 9 is connected with the refrigeration end of lithium-bromide absorption-type refrigerating machine 1, condenses the working medium in working medium circulation pipeline 9 in lithium bromide absorption
Cooling forms cryogenic fluid in formula refrigeration machine 1, opens condensation cycle pump 4 for cryogenic fluid and is sent into flue gas condenser 2, neat stress is logical
Cooling condensation when crossing flue gas condenser 2, the condensed water of generation are discharged by drain pipe 7, the cryogenic fluid quilt in flue gas condenser 2
Lithium-bromide absorption-type refrigerating machine 1 is gone to cool down by condensing working medium circulation pipeline 9 again after neat stress heating, so circulation realizes net cigarette
The cool-down dehumidification of gas.
Reheating working medium circulation pipeline 10 is connected with the radiating end of lithium-bromide absorption-type refrigerating machine 1, lithium bromide absorbing type refrigeration
The heat for condensing heat and driving steam that working medium circulation pipeline 9 absorbs is discharged into reheating working medium circulation pipeline 10 by machine 1 together
High temperature refrigerant is generated, high temperature refrigerant is sent hot working fluid to smoke re-heater 3 by the driving of reheat vapor cycle pump 5, for heating warp
The condensed neat stress of flue gas condenser 2 returns to lithium bromide suction by reheating working medium circulation pipeline 10 again after high temperature refrigerant is cooling
The radiating end of receipts formula refrigeration machine 1 heats, so the reheating of circulation realization neat stress.
Driving steam condenses into the middle warm water that temperature is higher than flue gas through lithium-bromide absorption-type refrigerating machine 1, by driving steam
Condensate line 11 enters smoke re-heater 3 and further carries out temperature raising to flue gas, finally returns to fire coal according to Temperature Matching principle
The condensate system of unit.
Under different operating conditions, carried out by the adjustment to condensation cycle pump 4, reheat vapor cycle pump 5 and No. two electric control valves 8
The flow of corresponding working medium is adjusted, and realizes effective, the energy-saving run of white plume cancellation element.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (5)
1. a kind of coal-burning power plant's white plume cancellation element, it is characterised in that: including lithium-bromide absorption-type refrigerating machine (1), flue gas
Condenser (2), smoke re-heater (3), condensation cycle pump (4), reheat vapor cycle pump (5), No.1 electric control valve (6), drain pipe
(7), No. two electric control valves (8), condensation working medium circulation pipeline (9), reheating working medium circulation pipeline (10), driving steam condensate
Pipeline (11) and flue (12)；The condensation cycle pump (4) is mounted in condensation working medium circulation pipeline (9), the reheat vapor cycle
Pump (5) is mounted on reheating working medium circulation pipeline (10)；The No.1 electric control valve (6) is mounted on drain pipe (7), described
Drain pipe (7) is connect with flue gas condenser (2), and No. two electric control valves (8) are mounted on driving steam condensation water lines
(11) on；The flue gas condenser (2) is connected with condensation working medium circulation pipeline (9), the lithium-bromide absorption-type refrigerating machine (1)
Refrigeration end is connected with condensation working medium circulation pipeline (9), and the smoke re-heater (3) is connected with reheating working medium circulation pipeline (10),
The radiating end of the lithium-bromide absorption-type refrigerating machine (1) is connected with reheating working medium circulation pipeline (10), the smoke re-heater (3)
It is connected with driving steam condensation water lines (11), the lithium-bromide absorption-type refrigerating machine (1) and driving steam condensation water lines
(11) it is connected；The flue gas condenser (2) is connected with flue (12), and the smoke re-heater (3) is connected with flue (12).
2. white plume cancellation element in coal-burning power plant's according to claim 1, it is characterised in that: the flue gas condenser
It (2) is indirect type gas-liquid heat-exchange.
3. white plume cancellation element in coal-burning power plant's according to claim 1, it is characterised in that: the smoke re-heater
It (3) is indirect type gas-liquid heat-exchange.
4. a kind of working method of any one of such as claim 1 ~ 3 coal-burning power plant's white plume cancellation element, feature exist
As follows in: the working method the step of: starting lithium-bromide absorption-type refrigerating machine (1) is opened No. two electric control valves (8) and is sent into
Steam is driven, condensation working medium circulation pipeline (9) is connected with the refrigeration end of lithium-bromide absorption-type refrigerating machine (1), condenses working medium circulation
Working medium in pipeline (9) cools down in lithium-bromide absorption-type refrigerating machine (1) forms cryogenic fluid, and opening condensation cycle pump (4) will
Cryogenic fluid is sent into flue gas condenser (2), and cooling condensation, the condensed water of generation pass through when neat stress passes through flue gas condenser (2)
Drain pipe (7) is discharged, and the cryogenic fluid in flue gas condenser (2) passes through condensation working medium circulation pipeline after being heated by neat stress again
(9) lithium-bromide absorption-type refrigerating machine (1) is gone to cool down, so the cool-down dehumidification of circulation realization neat stress；Reheating working medium circulation pipeline
(10) it is connected with the radiating end of lithium-bromide absorption-type refrigerating machine (1), lithium-bromide absorption-type refrigerating machine (1) will condense working medium circulation pipe
The heat of heat and driving steam that road (9) absorbs is discharged into reheating working medium circulation pipeline (10) together and generates high temperature refrigerant, high
Warm working medium is sent hot working fluid to smoke re-heater (3) by the driving of reheat vapor cycle pump (5), for heating through flue gas condenser
(2) condensed neat stress returns to suction-type lithium bromide system by reheating working medium circulation pipeline (10) again after high temperature refrigerant is cooling
The radiating end of cold (1) heats, so the reheating of circulation realization neat stress；Drive steam through lithium-bromide absorption-type refrigerating machine
(1) the middle warm water that temperature is higher than flue gas is condensed into, smoke re-heater (3) are entered into one by driving steam condensation water lines (11)
Step carries out temperature raising to flue gas, and the condensate system of coal unit is finally returned to according to Temperature Matching principle.
5. the working method of white plume cancellation element in coal-burning power plant's according to claim 4, it is characterised in that: different works
Under condition, the adjustment by pumping (4), reheat vapor cycle pump (5) and No. two electric control valves (8) to condensation cycle carries out corresponding working medium
Flow is adjusted, and realizes effective, the energy-saving run of white plume cancellation element.
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| CN201910207119.9A CN109990305B (en) | 2019-03-19 | 2019-03-19 | White smoke plume eliminating device for coal-fired power plant and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910207119.9A CN109990305B (en) | 2019-03-19 | 2019-03-19 | White smoke plume eliminating device for coal-fired power plant and working method |
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| CN109990305A true CN109990305A (en) | 2019-07-09 |
| CN109990305B CN109990305B (en) | 2023-09-15 |
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| CN110645587A (en) * | 2019-11-01 | 2020-01-03 | 浙江城建煤气热电设计院有限公司 | Flue gas takes off white device condensate waste heat recovery and utilizes system |
| CN110975535A (en) * | 2019-11-21 | 2020-04-10 | 浙江特富锅炉有限公司 | Flue gas condensation white-removing system |
| CN111457410A (en) * | 2020-03-30 | 2020-07-28 | 国电龙源电力技术工程有限责任公司 | System for eliminating smoke plume and flue gas waste heat utilization |
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