CN107687648A - The high-efficiency energy-saving ring insurance system that a kind of residual heat from boiler fume utilizes - Google Patents
The high-efficiency energy-saving ring insurance system that a kind of residual heat from boiler fume utilizes Download PDFInfo
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- CN107687648A CN107687648A CN201710881985.7A CN201710881985A CN107687648A CN 107687648 A CN107687648 A CN 107687648A CN 201710881985 A CN201710881985 A CN 201710881985A CN 107687648 A CN107687648 A CN 107687648A
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- absorbing liquid
- boiler
- flue gas
- spray
- discharge
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Classifications
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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
- F23J15/006—Layout of treatment plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/003—Feed-water heater systems
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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
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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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
- F25B30/06—Heat pumps characterised by the source of low potential heat
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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
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
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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
- F23J2219/00—Treatment devices
- F23J2219/40—Sorption with wet devices, e.g. scrubbers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The high-efficiency energy-saving ring insurance system that a kind of residual heat from boiler fume utilizes, the system includes boiler smoke system, lithium bromide absorption type heat pump system, absorbing liquid stock tank, spray desulfurizing tower, driving heat source is done using residual heat from boiler fume, extract the low-temperature heat source in absorbing liquid, heating boiler feed water, the absorbing liquid to be cooled are sent into spray desulfurizing tower.The present invention has both reclaimed fume afterheat, improves boiler replenishing water temperature, reduces the reaction temperature of desulfurizing tower, high-efficient energy-saving environment friendly again.
Description
Technical field
The present invention relates to a kind of residual heat from boiler fume to utilize system, and in particular to a kind of energy-conservation for efficiently utilizing fume afterheat
And desulphurization system.
Background technology
Coal-fired power station boiler flue gas loss is maximum in boiler various heat losses one, boiler smoke have temperature it is low,
The characteristics of energy level is low, rationally and effectively using fume afterheat, coal consumption can be reduced by a relatively large margin, increases generated energy.At present, it is most of
Mainly there is both direction in power station for the recycling of smoke discharging residual heat：One kind is by energy conversion, is converted into other shapes
The energy recovery of formula；Another kind is to make this part low-grade energy maintain the form of heat energy to be utilized.Major way includes
A. steam turbine side heat regenerative system, heat-setting water are introduced；B. preheat into stove air；C. drying brown coal, electricity generation system energy consumption is reduced
Loss；D. district cooling and heating etc..Cigarette temperature can be reduced by these modes, saves fuel.But boiler is in actual motion
By combustion conditions, fouling of heating surface, leaking out and corroding is influenceed, the flue-gas temperature after waste heat recovery still up to 140 ~ 160 DEG C, and
General wet desulfurizing process requirement, flue gas receive temperature between 75-85 DEG C, the flue-gas temperature after desulfurization at 45 ~ 55 DEG C or so,
Reaction temperature is high, can reduce the absorption efficiency of sulfide, so the temperature of boiler smoke also needs to reduce to improve efficiency.
The content of the invention
The purpose of the present invention causes desulfurized effect difference and low temperature heat energy for existing boiler smoke because reaction temperature is high
The problem of loss, the environment friendly system that a kind of energy-efficient fume afterheat utilizes is designed, skill is combined using lithium bromide absorption type heat pump
Art, absorb residual heat from boiler fume and be used for heating boiler moisturizing, reduce boiler smoke temperature, while follow-up desulfurization work can also be improved
The efficiency of skill.
The technical scheme is that：
The system that a kind of residual heat from boiler fume utilizes, including boiler smoke system, lithium bromide absorption type heat pump system, absorption slurry
Pond, spray desulfurizing tower；
The boiler smoke system includes boiler body, boiler feedwater, superheater, economizer, air preheater, deduster etc..
For the lithium bromide absorption type heat pump system using lithium bromide as absorbent, water is refrigerant, and boiler smoke is driving heat
Source, absorbing liquid are low-temperature heat source, and system mainly includes generator, evaporator, condenser, absorber；The suction-type lithium bromide
Heat pump is provided with flue gas reception and receives structure and flue gas discharge structure, boiler replenishing water reception structure and boiler replenishing water discharge knot
Structure, absorbing liquid receive structure and absorbing liquid discharge structure；Boiler replenishing water passes sequentially through the absorption of lithium bromide absorption type heat pump system
Device 24 and condenser 23, therefore absorber is provided with moisturizing medial exhaust structure, condenser is provided among moisturizing and receives structure.
The absorbing liquid stock tank is provided with absorbing liquid water supplement structure, absorbing liquid circulation discharge structure and absorbing liquid circulation and receives knot
Structure, absorbing liquid spray discharge structure and absorbing liquid spray receive structure.
The spray desulfurizing tower is provided with flue gas and receives structure and desulfurization fume discharge structure, absorbing liquid Sprayer Circulation discharge knot
Structure receives structure with absorbing liquid Sprayer Circulation.
The boiler smoke discharge structure of the flue gas system and the flue gas of lithium bromide absorption type heat pump system receive structure phase
Even, boiler replenishing water receives structure and is connected with boiler replenishing water discharge structure.
The flue gas discharge structure of the lithium bromide absorption type heat pump system receives structure with the flue gas of spray desulfurizing tower and is connected,
Absorbing liquid receives structure and followed with absorbing liquid circulation discharge structure of the absorbing liquid discharge structure respectively with absorbing liquid stock tank with absorbing liquid
Ring receives structure and is connected.
The absorbing liquid spray discharge structure of the absorbing liquid stock tank receives structure respectively with spraying desulfurization with absorbing liquid spray
The absorbing liquid Sprayer Circulation of tower receives structure and is connected with absorbing liquid Sprayer Circulation discharge structure.
The spray desulfurizing tower is countercurrent spray tower, and flue gas enters from bottom air inlet, top outflow, in Ta Nei and spray
Absorbing liquid counter current contacting, so as to remove the sulfide in flue gas.
The beneficial effects of the invention are as follows：
Compared with prior art, its remarkable advantage is the present invention：（1）By lithium bromide absorption type heat pump, boiler smoke is absorbed
Waste heat carrys out heating boiler moisturizing, saves fuel consumption, while also reduces boiler smoke temperature and reach less than 55 DEG C, maximum recovery
The heat of flue gas, while also absorb the low-temperature heat quantity after absorbing liquid spray；（2）Reduce absorbing liquid in spray desulfurizing tower
Temperature, that is, the reaction temperature in desulfurizing tower is reduced, improve desulfuration efficiency more than 30%, realize the double goal of energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 present system structural representations.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
The high-efficiency energy-saving ring insurance system that a kind of residual heat from boiler fume utilizes, it includes boiler smoke system 1, lithium bromide absorption
Formula heat pump 2, absorbing liquid stock tank 3 and spray desulfurizing tower 4, the lithium bromide absorption type heat pump system 2 is with the boiler smoke
The flue gas that system 1 is discharged is driving heat source, using the absorbing liquid in absorbing liquid stock tank 3 as low-temperature heat source, using lithium bromide as absorbent,
Using water as refrigerant, the absorbing liquid to be cooled is sent into spray desulfurizing tower 4 to being discharged after flue gas desulfurization.The suction-type lithium bromide heat
Pumping system 2 mainly includes generator 21, evaporator 22, condenser 23, absorber 24.The lithium bromide absorption type heat pump system 2
Structure 210, which is received, provided with flue gas receives structure 241 and boiler replenishing water discharge discharge knot with flue gas discharge structure 211, boiler replenishing water
Structure 230, absorbing liquid receive structure 221 and absorbing liquid discharge structure 220；The absorber 24 is provided with boiler replenishing water medial exhaust knot
Structure 240, the condenser 23, which is provided among boiler replenishing water, receives structure 231；Flue gas receives structure 210 and is used to receive boiler smoke
The flue gas of the discharge of boiler smoke discharge structure 111 of system 1 is simultaneously sent into heat release cooling, flue gas discharge structure 211 in generator 21
Discharged for the flue gas after generator 21 absorbs heat to be sent into spray desulfurizing tower 4 after progress desulfurization；Boiler replenishing water receives structure
241 are used to after receiving boiler water be sent into after absorber 24 absorbs heat again by the feeding boiler benefit of boiler replenishing water medial exhaust structure 240
Enter condenser 23 after structure 231 is received among water, condensed device 23 passes through boiler replenishing water discharge structure 230 and boiler after heating up
The boiler replenishing water of flue gas system 1 receives structure 110 and is sent into boiler smoke system 1 as being changed in boiler replenishing water again boiler flue
Heat；Absorbing liquid receives structure 221 and is used to the absorbing liquid in absorbing liquid stock tank 3 being sent into evaporator 22, is absorbed heat through evaporator 22
Absorbing liquid afterwards is sent into absorbing liquid stock tank 3 through absorbing liquid discharge structure 220 again.The absorbing liquid stock tank 3 is mended provided with absorbing liquid
Water-bound 330, absorbing liquid circulation discharge structure 321 and absorbing liquid circulation receive structure 320, absorbing liquid discharge structure 311 with inhaling
Receive liquid and receive structure 310；Absorbing liquid water supplement structure 330 is used for during replenishment cycles the absorbing liquid moisturizing lost, and absorbing liquid is followed
Ring discharge structure 321 is used to provide low-temperature heat source for the evaporator 22 of lithium bromide absorption type heat pump system 2, the absorption after being cooled
Liquid is circulated by absorbing liquid receives structure 320 into absorbing liquid stock tank 3 and through the feeding spray desulfurizing tower of absorbing liquid discharge structure 311
4 middle and upper parts carry out spraying desulfurization and cooling to flue gas, and the absorbing liquid after spray heat absorption absorbs by the middle and lower part of spray desulfurizing tower 4 again
Liquid Sprayer Circulation discharge structure 410 and absorbing liquid receive structure 310 and are sent into absorbing liquid stock tank 3, continue on through absorbing liquid circulation row
Go out structure 321 and be sent into the progress subsequent cycle of lithium bromide absorption type heat pump system 2.The spray desulfurizing tower 4 connects provided with desulfurization fume
Receive structure 420 and desulfurization fume discharge structure 421, absorbing liquid Sprayer Circulation discharge structure 410 receive with absorbing liquid Sprayer Circulation
Structure 411, flue gas receive structure 420 and are used to receive the boiler after the generator heat absorption in lithium bromide absorption type heat pump system 2
Flue gas, the boiler smoke are de- from the top of spray desulfurizing tower 4 after absorbing liquid spray equipment spraying cooling desulfurization in spray desulfurizing tower 4
Sulphur fume emission structure 421 is discharged, and absorbing liquid Sprayer Circulation receives structure 411 and is used to receive the warp sent out from absorbing liquid stock tank 3
As spray liquid, spray liquid absorbs after flue gas heat and from absorbing liquid Sprayer Circulation discharge structure 410 and inhaled again the absorbing liquid of cooling
Receive liquid and receive structure 310 and be sent into absorbing liquid stock tank 3 and enter subsequent cycle to be sent into lithium bromide absorption type heat pump system 2.Institute
It is countercurrent spray tower to state spray desulfurizing tower 4, and the tail flue gas of boiler smoke system 1 is by lithium bromide absorption type heat pump system 2
Enter spray desulfurizing tower 4 after generator 21, enter from the bottom of spray desulfurizing tower 4, top discharge, by the absorbing liquid for spraying flue gas
Enter from the top of the spray desulfurizing tower 4, bottom outflow, flue gas is in Ta Nei and absorbs spray liquid counter current contacting, so as to remove
Sulfide in flue gas.
Specific annexation is as shown in figure 1, the wherein boiler smoke discharge structure 111 and lithium bromide of boiler smoke system 1
The flue gas of absorption type heat pump system 2 receives connected structure 210, boiler replenishing water reception structure 110 and management moisturizing discharge structure 230
It is connected；The flue gas discharge structure 211 of the lithium bromide absorption type heat pump system 2 receives structure 420 with the flue gas of spray desulfurizing tower 4
It is connected, absorbing liquid receives structure 221 and discharges knot with absorbing liquid circulation of the absorbing liquid discharge structure 220 respectively with absorbing liquid stock tank 3
Structure 321 circulates reception structure 320 with absorbing liquid and is connected；The absorbing liquid discharge structure 311 of the absorbing liquid stock tank 3 connects with absorbing liquid
Receive absorbing liquid Sprayer Circulation of the structure 310 respectively with spray desulfurizing tower 4 and receive structure 411 and absorbing liquid Sprayer Circulation discharge structure
410 are connected.Described various structures can be by pipeline, pipe as all kinds of discharge structures, discharge structure, all kinds of reception structures etc.
Mouth or concentric reducer, elbow, valve composition, using flange, screw thread or are welded to connect.
Details are as follows：
Residual heat from boiler fume of the present invention includes boiler smoke system 1, lithium bromide absorption type heat pump system 2, absorbing liquid using system
Stock tank 3, spray desulfurizing tower 4.
The boiler of the boiler smoke system 1 is not limited to one kind in station boiler, Industrial Boiler, hot-water boiler, bag
Include but be not limited to superheater, be economizer, air preheater, not specifically illustrated in the equipment drawing such as dedusting；The boiler smoke system 1
Structure 110 and boiler smoke discharge structure 111 are received provided with boiler replenishing water.
For the lithium bromide absorption type heat pump system 2 using lithium bromide as absorbent, water is refrigerant, and boiler smoke is driving heat
Source, absorbing liquid stock tank are low-temperature heat source, and boiler replenishing water is to take thermal medium, including generator 21, evaporator 22, condenser 23, suction
Receive device 24 etc.；The lithium bromide absorption type heat pump system 2 is provided with flue gas and receives structure 210 and fume emission structure 211, boiler benefit
Water receives structure 241 and receives structure 221 and absorbing liquid discharge structure 220 with management moisturizing discharge structure 230, absorbing liquid；Boiler
Moisturizing passes sequentially through the absorber 24 and condenser 23 of lithium bromide absorption type heat pump system 2, therefore absorber 24 is provided with boiler replenishing water
Medial exhaust structure 240, condenser 23, which are provided among boiler replenishing water, receives structure 231.
The absorbing liquid stock tank 3 is provided with stock tank absorbing liquid water supplement structure 330, absorbing liquid circulation discharge structure 321 with absorbing
Liquid circulation receives structure 320, absorbing liquid discharge structure 311 and absorbing liquid and receives structure 310.
Sulfur method is sprayed in the spray desulfurizing tower 4 and is not limited to the cigarettes such as limestone/lime wet method, Dual alkali, ammonia process
Desulfurization；The spray desulfurizing tower 4 is provided with flue gas and receives structure 420 and desulfurization fume discharge structure 421, absorbing liquid Sprayer Circulation
Discharge structure 410 receives structure 411 with absorbing liquid Sprayer Circulation.
The boiler smoke discharge structure 111 of the flue gas system 1 is received with the flue gas of lithium bromide absorption type heat pump system 2 and tied
Structure 210 is connected, boiler replenishing water receives structure 110 and is connected with boiler replenishing water discharge structure 230.
The fume emission structure 211 of the lithium bromide absorption type heat pump system 2 receives structure with the flue gas of spray desulfurizing tower 4
420 are connected, and absorbing liquid receives structure 221 and circulates discharge with absorbing liquid of the absorbing liquid discharge structure 220 respectively with absorbing liquid stock tank 3
Structure 321 circulates reception structure 320 with absorbing liquid and is connected.
The absorbing liquid discharge structure 311 of the absorbing liquid stock tank 3 and absorbing liquid receive structure 310 respectively with spray desulfurizing tower
4 absorbing liquid Sprayer Circulation receives structure 411 and is connected with absorbing liquid Sprayer Circulation discharge structure 410.
The operation principle of the lithium bromide absorption type heat pump system 2 is：Utilize the steaming of lithium bromide water solution under different temperatures
Hair absorbs heat and condensed heat release to realize the transfer of heat, the height discharged from the boiler smoke discharge structure 111 of boiler smoke system 1
Warm flue gas, the generator 21 that structure 210 into lithium bromide absorption type heat pump system 2 are received by flue gas are brominated the heat absorption of lithium solution
Receive structure 210 from flue gas afterwards to discharge, the refrigerant water in lithium-bromide solution absorbs residual heat from boiler fume by generator 21 and steamed
Issue, steam enters the heat release of condenser 23 and heating boiler moisturizing, and a part of lithium-bromide solution that concentration uprises that is condensed enters
Enter absorber 24, the heat of vaporization that a part of condensed water enters absorbing liquid in the absorption stock tank of evaporator 22 becomes saturated steam stream
To absorber 24, and it is brominated lithium solution and absorbs its heat and carry out heating boiler moisturizing, the lithium-bromide solution flow direction after heat release occurs
Device 21, so complete a circulation.The energy conversion of whole process is represented by：High temperature heat source flue gas+low-temperature heat source absorbing liquid
→ common heating boiler moisturizing makes its heating.
Absorbing liquid in the absorbing liquid stock tank 3 flows out from absorbing liquid circulation discharge structure 321, is received and tied by absorbing liquid
The heating condensate water of evaporator 22 that structure 221 flows into lithium bromide absorption type heat pump system 2 makes it become saturated steam, heat release cooling
Absorbing liquid afterwards flows out through absorbing liquid Sprayer Circulation through absorbing liquid discharge structure 311 again and receives structure 411, into spray desulfurization
Tower 4 carries out spray desulfurization to flue gas in tower, flows back to absorbing liquid stock tank 3 from the absorbing liquid Sprayer Circulation discharge structure 410 of bottom of towe, such as
This completes a circulation.
System is utilized according to residual heat from boiler fume of the present invention, boiler smoke passes through successively：The boiler smoke of boiler smoke system 1
The flue gas of gas 111-lithium bromide absorption type heat pump of discharge structure system 2 receives 210-lithium bromide absorption type heat pump of structure system 2
The flue gas of 211-spray desulfurizing tower of fume emission structure 4 receive the desulfurization fume discharge knot of structure 420-spray desulfurizing tower 4
Structure 421.
Boiler replenishing water passes through successively：The boiler replenishing water of lithium bromide absorption type heat pump system 2 receives 241-lithium bromide of structure and inhaled
In receipts formula heat pump 2 in the boiler replenishing water medial exhaust structure 240 of absorber 24, lithium bromide absorption type heat pump 2 condenser 23 pot
Boiler replenishing water 230-boiler smoke of discharge structure system of 231-lithium bromide absorption type heat pump of structure system 2 is received among stove moisturizing
The boiler replenishing water of system 1 receives structure 110.
Absorbing liquid is passed through successively：Absorbing liquid circulation 321-lithium bromide absorption type heat pump of discharge structure system of absorbing liquid stock tank 3
The absorbing liquid of system 2 receives absorbing liquid 220-absorbing liquid of discharge structure stock tank 3 of 221-lithium bromide absorption type heat pump of structure system 2
Absorbing liquid circulation receive 320-absorbing liquid of structure stock tank 3 311-spray desulfurizing tower of absorbing liquid discharge structure 4 absorbing liquid
Sprayer Circulation receives the suction of absorbing liquid Sprayer Circulation 410-absorbing liquid of discharge structure stock tank 3 of 411-spray desulfurizing tower of structure 4
Receive liquid and receive structure 310.
Embodiment 1
Circulating Fluidized Bed Boiler of the rated capacity for 220t/h is used, boiler smoke system includes recirculating fluidized bed
Boiler, U-shaped material returning device, superheater, economizer, air preheater.Specified boiler replenishing water temperature is 150 DEG C, boiler smoke system
Smog discharge temperature is 136 DEG C, exhaust gas volumn 385100m3/h.Spray desulfurizing tower selects ammonia process of desulfurization spray column.By this hair
Bright smoke waste heat utilization system improves boiler replenishing water temperature 50 C and brings up to 150 DEG C, reduces 80 DEG C of cigarette temperature, while by desulfurization
The absorption of tower and oxidizing reaction temperature control improve the absorptivity of sulfur dioxide, reduce ammonium sulfite below 55 DEG C
Decompose.
It will be appreciated by those skilled in the art that above-described embodiment and accompanying drawing only play the explanation purpose of the present invention, without should
It is considered as any restrictions made to it.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (7)
- A kind of 1. high-efficiency energy-saving ring insurance system that residual heat from boiler fume utilizes, it is characterised in that：It includes boiler smoke system （1）, lithium bromide absorption type heat pump system（2）, absorbing liquid stock tank（3）And spray desulfurizing tower（4）, the lithium bromide absorption type heat pump System（2）With the boiler smoke system（1）The flue gas of discharge is driving heat source, with absorbing liquid stock tank（3）In absorbing liquid be Low-temperature heat source, using lithium bromide as absorbent, using water as refrigerant, the absorbing liquid to be cooled is sent into spray desulfurizing tower（4）To flue gas Pass through smoke stack emission after desulfurization.
- 2. the high-efficiency energy-saving ring insurance system that residual heat from boiler fume according to claim 1 utilizes, it is characterised in that the bromine Change lithium-absorbing formula heat pump（2）Mainly include generator（21）, evaporator（22）, condenser（23）, absorber（24）.
- 3. the high-efficiency energy-saving ring insurance system that residual heat from boiler fume according to claim 2 utilizes, it is characterised in that the bromine Change lithium-absorbing formula heat pump（2）Structure is received provided with flue gas（210）With flue gas discharge structure（211）, boiler replenishing water receive knot Structure（241）With boiler replenishing water discharge structure（230）, absorbing liquid receive structure（221）With absorbing liquid discharge structure（220）；It is described Absorber（24）Provided with boiler replenishing water medial exhaust structure（240）, the condenser（23）Tied provided with being received among boiler replenishing water Structure（231）；Flue gas receives structure（210）For receiving boiler smoke system（1）Boiler smoke discharge structure（111）Discharge Flue gas is simultaneously sent into generator（21）Middle heat release, flue gas discharge structure（211）For will be through generator（21）Flue gas after heat absorption is sent Enter spray desulfurizing tower（4）Middle carry out desulfurization；Boiler replenishing water receives structure（241）For boiler replenishing water to be sent into absorber（24）Inhale Pass through moisturizing medial exhaust structure after heat again（240）It is sent among moisturizing and receives structure（231）Into condenser（23）Continue to inhale Heat, condensed device（23）Pass through boiler replenishing water discharge structure after heating（230）Connect boiler replenishing water and receive structure（110）It is sent into pot Kiln gas system（1）It is middle to be used as boiler replenishing water to continue heat absorption heating；Absorbing liquid receives structure（221）For by absorbing liquid stock tank （3）In absorbing liquid be sent into evaporator（22）In, through evaporator（22）Absorbing liquid after heat absorption is again through absorbing liquid discharge structure （220）It is sent into absorbing liquid stock tank（3）Middle carry out heat release.
- 4. the high-efficiency energy-saving ring insurance system that residual heat from boiler fume according to claim 1 utilizes, it is characterised in that the suction Receive slurry pond（3）Provided with absorbing liquid water supplement structure（330）, absorbing liquid circulation discharge structure（321）Circulated with absorbing liquid and receive knot Structure（320）, absorbing liquid discharge structure（311）Structure is received with absorbing liquid（310）；Absorbing liquid water supplement structure（330）For supplementing The absorbing liquid water lost in cyclic process, absorbing liquid circulation discharge structure（321）For absorbing liquid to be sent into evaporator（22）Make For low-temperature heat source, the absorbing liquid after cooling is circulated by absorbing liquid receives structure（320）Into absorbing liquid stock tank（3）In, through inhaling Receive liquid discharge structure（311）Structure is received with absorbing liquid Sprayer Circulation（411）It is sent into spray desulfurizing tower（4）Middle and upper part is sprayed to cigarette Gas carries out desulfurization, and the absorbing liquid after spray heat absorption passes through spray desulfurizing tower（4）Middle and lower part absorbing liquid Sprayer Circulation discharge structure （410）Structure is received with absorbing liquid（310）It is sent into absorbing liquid stock tank（3）In, then through absorbing liquid circulation discharge structure（321）It is sent into Lithium bromide absorption type heat pump system（2）In evaporator（22）Circulated.
- 5. the high-efficiency energy-saving ring insurance system that residual heat from boiler fume according to claim 1 utilizes, it is characterised in that the spray Drench desulfurizing tower（4）Structure is received provided with flue gas（420）With desulfurization fume discharge structure（421）, absorbing liquid Sprayer Circulation discharge knot Structure（410）Structure is received with absorbing liquid Sprayer Circulation（411）, flue gas reception structure（420）For receiving through suction-type lithium bromide Heat pump（2）In generator（21）Boiler smoke after heat absorption, the boiler smoke receive structure by flue gas（420）Into Spray desulfurizing tower（4）From spray desulfurizing tower after absorbing liquid spray equipment spraying cooling desulfurization（4）Middle top desulfurization fume discharge Structure（421）Discharge, absorbing liquid Sprayer Circulation receive structure（411）For receiving from absorbing liquid stock tank（3）The absorbing liquid of submitting, Absorbing liquid after spray passes through absorbing liquid Sprayer Circulation discharge structure（410）Structure is received with absorbing liquid（310）It is sent into absorbing liquid Stock tank（3）After be re-fed into lithium bromide absorption type heat pump system（2）In evaporator（22）Circulated.
- 6. the high-efficiency energy-saving ring insurance system that residual heat from boiler fume according to claim 1 utilizes, it is characterised in that the cigarette Gas system（1）Boiler smoke discharge structure（111）With lithium bromide absorption type heat pump system（2）Flue gas receive structure（210） It is connected, boiler replenishing water receives structure（110）With boiler replenishing water discharge structure（230）It is connected；The lithium bromide absorption type heat pump system System（2）Flue gas discharge structure（211）With spray desulfurizing tower（4）Flue gas receive structure（420）It is connected, absorbing liquid receives structure （221）With absorbing liquid discharge structure（220）Respectively with absorbing liquid stock tank（3）Absorbing liquid circulation discharge structure（321）With absorption Liquid circulation receives structure（320）It is connected；The absorbing liquid stock tank（3）Absorbing liquid discharge structure（311）Receive and tie with absorbing liquid Structure（310）Respectively with spray desulfurizing tower（4）Absorbing liquid Sprayer Circulation receive structure（411）Discharge and tie with absorbing liquid Sprayer Circulation Structure（410）It is connected.
- 7. the high-efficiency energy-saving ring insurance system that residual heat from boiler fume according to claim 2 utilizes, it is characterised in that the spray Drench desulfurizing tower（4）For countercurrent spray tower, boiler smoke system（1）Tail flue gas pass through lithium bromide absorption type heat pump system（2） Generator（21）By flue gas discharge structure after heat release（211）Structure is received with flue gas（420）Into spray desulfurizing tower（4）Bottom Portion, from spray desulfurizing tower（4）Top is discharged, and the absorbing liquid of spray is from the spray desulfurizing tower（4）Top enter, bottom stream Go out, flue gas is in Ta Nei and absorbs spray liquid counter current contacting, so as to remove the sulfide in flue gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710881985.7A CN107687648A (en) | 2017-09-26 | 2017-09-26 | The high-efficiency energy-saving ring insurance system that a kind of residual heat from boiler fume utilizes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710881985.7A CN107687648A (en) | 2017-09-26 | 2017-09-26 | The high-efficiency energy-saving ring insurance system that a kind of residual heat from boiler fume utilizes |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704463A (en) * | 2018-07-25 | 2018-10-26 | 北京京诚科林环保科技有限公司 | Sintering flue gas desulfurization and denitrification and flue gas whitening comprehensive treatment system and process |
| CN109855109A (en) * | 2019-03-07 | 2019-06-07 | 华北电力大学 | A kind of the depth recyclable device and its method of heat of smoke discharged from boiler of power station |
| CN109945276A (en) * | 2019-03-13 | 2019-06-28 | 兰州理工大学 | A kind of heat pump heating system of fume afterheat driving |
| CN110006063A (en) * | 2019-04-02 | 2019-07-12 | 双良节能系统股份有限公司 | A kind of fire coal boiler fume waste heat deep exploitation system with desulfurizing tower |
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| CN113007921A (en) * | 2021-04-01 | 2021-06-22 | 煤科院节能技术有限公司 | Boiler waste heat cascade utilization and deep water heat recovery system based on absorption heat pump |
| CN116658887A (en) * | 2023-05-18 | 2023-08-29 | 北京天地融创科技股份有限公司 | Energy-saving system of industrial hot water boiler |
| CN116658887B (en) * | 2023-05-18 | 2024-01-30 | 北京天地融创科技股份有限公司 | Energy-saving system of industrial hot water boiler |
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