CN110124500A - A kind of depth recycles the device and method of water resource in wet flue gas - Google Patents
A kind of depth recycles the device and method of water resource in wet flue gas Download PDFInfo
- Publication number
- CN110124500A CN110124500A CN201910409189.2A CN201910409189A CN110124500A CN 110124500 A CN110124500 A CN 110124500A CN 201910409189 A CN201910409189 A CN 201910409189A CN 110124500 A CN110124500 A CN 110124500A
- Authority
- CN
- China
- Prior art keywords
- layer
- condensation
- flue gas
- water
- destarch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the device and method of water resource in a kind of depth recycling wet flue gas, device includes desulfurizing tower, desulfuration recycle pump, condensation down cycles pump, air cooling tower；Desulfurization spraying layer, flue gas preliminary condensation layer, destarch demisting layer, hydrops layer, deep condensation cooling layer and condensation are set gradually in desulfurizing tower from the bottom to top and receives water layer；Desulfurization spraying layer is connected to by desulfuration recycle pump with tower reactor；Air cooling tower includes tower body and is arranged in the intracorporal cooling spraying layer of tower；The liquid inlet of water layer is received in flue gas preliminary condensation layer, destarch demisting layer, deep condensation cooling layer and condensation and liquid outlet passes through condensate circulation pipeline respectively and is connected to air-cooled tower bottom and cooling spraying layer liquid inlet；Down cycles pump is condensed to be arranged on condensate circulation pipeline for receiving water layer transport of condensate to flue gas preliminary condensation layer, destarch demisting layer, deep condensation cooling layer and condensation.The operation of zero water consume of wet desulfurization system can be achieved in the present invention, while administering flue gas pollutant.
Description
Technical field
The present invention relates to the devices of water resource in resource and environment protection field more particularly to a kind of depth recycling wet flue gas
And method.
Background technique
China is the country of a rich coal, water shortage, lean gas, and worldwide coal yield closely half is from China, CHINESE COAL in 2016
34.11 hundred million tons of raw coal of carbon yield occupy first, the whole world, and accounting is up to 45.7%.Meanwhile China or coal consumption big country,
Coal accounts for leading in energy consumption structure, and coal consumption amount accounts for 70% or more primary energy consumption total amount, and with industry, electric power
Based on fire coal, accounting for coal overall consumption ratio is more than 90%, supplemented by civil.Within very long one period from now on, coal will be made
It can not change for China and the most important non-renewable energy of Xinjiang Autonomous Region this status.
China's freshwater resources total amount is 28000 billion cubic meters, and occupancy volume per person is complete not as good as the 1/3 of world average level
Most deficient one of the country of ball per capita water resource.China's distribution of water resources is extremely unbalanced, the Yangtze river basin and its areas to the south territory
Area only accounts for the 36.5% of the whole nation, and water resources quantity accounts for the 81% of the whole nation；Basin of Huaihe River and its national territorial area of northern area account for
The 63.5% of the whole nation, water resources quantity only accounts for the 19% of national gross amount of water resources.
China coal electricity production capacity developed regions and high Water Resources Pressure area high fit.2015, coal-electricity base entirely produced
A total of about 99.75 billion cubic meter of the water requirement of industry chain, wherein coal mining industry needs the 66.6% of the total industry water requirement of water inventory Zhan, fire
The 22.2% of the electric total industry water requirement of industry Zhan, Chemical Industry accounts for 11.1%, this number is equivalent to the Yellow River normal year can
For distributing a quarter of 370 billion cubic meter of water or more.The whole nation has been run in coal-burning power plant within 2016,4.37 hundred million kilowatts of coal
Electric installation amount be located at high hydraulic pressure area, the 47.8% of Zhan Quanguo coal electricity installation amount, total water consumption be 25.73 hundred million m3.It is highly dense
Degree coal electricity industry has been further exacerbated by the water-deficient areas such as regional water resources crisis, especially Xinjiang, Inner Mongol.
Wet desulphurization device is one of main water-consuming unit of coal motor group, and by taking 300MW unit as an example, desulphurization system is per hour
Consume water about 60m3, about 500,000 tons of water consumption of year.Meanwhile fired power generating unit wet desulphurization device is in the process of running, high humidity desulfurization
Tail gas is with vapor form to environmental emission large quantity of moisture, and when a 300MW coal unit oepration at full load, desulfurizer is per small
When to environmental emission vapor hundredweight, about 1,000,000 tons of water of year consumption discharge, coal motor group wet desulphurization device is arranged to environment
Waterdrainage amount is much larger than wet desulphurization device water consumption.Flue gas 10000Nm is discharged according to burning ton coal3, wet flue gas contained humidity
112g/Nm3Estimation, 1 ton of coal of every burning, wet flue gas take away about 1 ton of moisture content, mainly include original aqueous, wet desulphurization steaming in coal
Shampoo.Hundred million tons of coal 34-37 of China year consumption, then the moisture content that flue-gas desulfurizing device is discharged into atmosphere every year is up to more than 30
Hundred million tons.In the process of running, the wet flue gas discharged into surrounding air causes a large amount of water resource utility model to wet desulphurization device.
Fired power generating unit desulfurization can be not only set to realize zero water consume water resource recycling in wet desulphurization high humidity tail gas, moreover it is possible to provide
Partially new water source.Currently, the high-humidity gas fume water resource recovery technology in China is still in infancy.
Summary of the invention
The present invention provides the device and methods of water resource in a kind of depth recycling wet flue gas, use one section of tube type cold first
Solidifying demister removes the desulfurization slurry drop carried in the wet flue gas being closely saturated after wet scrubbing, preliminary to complete wet flue gas condensation cooling
Saturation, saturation wet flue gas complete the recycling of level-one water resource and flue gas pollutant deep purifying, cleaning saturation through two sections of condensation coolings
Wet flue gas makes flue gas reach supersaturation by three sections of condensation coolings, completes second level through four sections of condensation cooling demistings and receives water, wherein one
Grade recycle-water supplements water, the clean water of secondary recovery as wet desulfurization system slurrying water and system after precipitation and purification is handled
As other industrial process waters, the operation of zero water consume of wet desulfurization system is realized, reduce industrial working and produce water consume, cooperate with simultaneously
Administer various pollutants in fume.
Specific technical solution is as follows:
A kind of depth recycles the device of water resource in wet flue gas, including desulfurizing tower, desulfuration recycle pump, condensation down cycles
Pump, air cooling tower；
The desulfurizing tower bottom sidewall is equipped with smoke inlet, top is equipped with exhanst gas outlet, and bottom is tower reactor；The desulfurization
Desulfurization spraying layer, flue gas preliminary condensation layer, destarch demisting layer, hydrops are set gradually from the bottom to top in tower and above smoke inlet
Water layer is received in layer, deep condensation cooling layer and condensation；
The desulfurization spraying layer is connected to by the inlet and outlet pipeline of desulfuration recycle pump with tower reactor；
The air cooling tower includes tower body and is arranged in the intracorporal cooling spraying layer of tower；The tower body bottom enters equipped with air
Mouthful, top is equipped with air outlet slit；
The flue gas preliminary condensation layer, destarch demisting layer, deep condensation layer and condensation receive and are equipped with condensate line inside water layer
The liquid inlet in road, condensate liquid pipeline is connected to by pipeline with condensation down cycles pump discharge, and the liquid outlet of condensate liquid pipeline passes through
Pipeline is connected to the liquid inlet of air cooling tower cooling spraying layer；The destarch demisting layer and hydrops layer bottom is equipped with leakage fluid dram, and
By being connected to outside pipeline and desulfurizing tower.
Preferably, water layer internal condensation liquid pipe road is received in flue gas preliminary condensation layer, destarch demisting layer, deep condensation layer and condensation
Liquid inlet is provided with regulating valve control condensation flow quantity, to control every layer of the smoke temperature range of decrease.
Flue gas enters in desulfurizing tower from smoke inlet, and the desulfurization slurry in tower reactor is delivered to desulfurization and sprayed by desulfuration recycle pump
Layer, the spray nozzle through desulfurization spraying layer spray, and carry out desulfurization washing to flue gas, desulfurization slurry drops back into tower reactor again.
Flue gas preliminary condensation layer carries out preliminary condensation cooling to the flue gas for carrying desulfurization slurry drop, reaches supersaturated shape
State.
Preferably, if main pipe grating condenser module, each pipe grating condenser mould are arranged in the flue gas preliminary condensation layer
Block is made of the hollow heat exchanger tube and support fixation elements of several layers equidistantly distributed, and condensate liquid circulates in hollow heat exchanger tube.
Hollow heat exchange tube inlet is connect by pipeline with condensation down cycles pump discharge, and hollow heat transfer tube outlet passes through pipeline and air cooling tower
In cooling spraying layer connection.
It is further preferred that the flue gas preliminary condensation layer height is 0.1m-0.5m, the hollow heat exchanger tube setting number of plies is 2-4
Layer, the smoke temperature range of decrease of flue gas preliminary condensation layer are 0.2 DEG C -2 DEG C.
The destarch demisting layer is located above flue gas preliminary condensation layer, completes to condense supersaturated wet flue gas cooling and remove
Remaining slurries droplet and particulate matter in flue gas.
Preferably, the destarch demisting layer is made of destarch demisting module, supporting beam and intake chute, the destarch demisting mould
Upper layer and lower layer condenser pipe is equipped in block, several destarch demisting module tilts are symmetrically placed in supporting beam, and top has drain
The intake chute of plate is installed on two neighboring destarch demisting module bottom and is fixed on the outside of supporting beam, one end of intake chute be equipped with
The leakage fluid dram being connected to outside desulfurizing tower.
Destarch demisting module tilt is symmetrical arranged, and can increase flue gas area of passage, reduces flue gas flow rate, is extended flue gas and is existed
The destarch demisting layer residence time, be conducive to destarch demisting and water saving.
The destarch demisting module contact being saturated in wet flue gas and destarch demisting layer, part Water vapor condensation at fine mist,
Liquid film is formed with destarch demisting module wall face contact, while the granule dust in flue gas gathers and grows up with small droplet, is caught by liquid film
Obtain, liquid film is down to bottom end along inclined destarch demisting module wall surface, fall into lower section intake chute in, complete level-one receive water and by
Intake chute outlet is discharged outside desulfurizing tower.
It is further preferred that the height of destarch demisting module is 0.5m-1.5m, the cigarette of destarch demisting layer in destarch demisting layer
Temperature drop width is 0.5 DEG C -3 DEG C.
The hydrops layer be located at deep condensation cooling layer and condensation receive water layer below, for collect deep condensation cooling layer and
The condensed water that water layer generates is received in condensation, is discharged outside desulfurizing tower by outlet.
The deep condensation cooling layer is located above hydrops layer, cools down to cleaning saturation wet flue gas, makes water in flue gas
Steam reaches supersaturated condensation drop.
Preferably, several layers pipe type condensing heat exchanger is set in the deep condensation cooling layer；The pipe type condensation
Heat exchanger equidistantly passes perpendicularly through the cold of metal folding blade by several metal folding blades being equally spaced and two rows
Solidifying Guan Zucheng, one end of every upper layer condenser pipe is connected to adjacent lower layer's condenser pipe, and upper layer condenser pipe enters for condensate liquid
Liquid pipe, lower layer's condenser pipe are condensate liquid outlet tube.
Further, the condenser pipe is bellows, and bellows increases turbulent extent of the condensate liquid in pipe, reduces pipe
On the one hand inner boundary layer thermal resistance, metal folding blade increase heat exchange area to increase flue gas cool-down amplitude, on the other hand can connect
The droplet of condensation in flue gas is touched, while being play fixed supporting role to entire heat exchanger module.
It is further preferred that the liquid inlet setting valve of every layer of pipe type condensing heat exchanger controls condensation flow quantity, liquid out
Mouth is connected to by pipeline with the cooling spraying layer in air cooling tower.Condensing heat-exchange can be run according to entrance flue gas temperature and humidity regulation
The number of plies of device.
It is further preferred that the height of single layer condensing heat exchanger is 0.1m-0.5m, layer in the deep condensation cooling layer
Spacing is 0.1m-1.5m, and the smoke temperature range of decrease of single layer condensing heat exchanger is 5 DEG C -10 DEG C.
Preferably, the condensation receives water layer and is equipped with the symmetrically placed condensation receipts water module of several inclinations, and water is received in each condensation
Upper layer and lower layer condenser pipe is equipped in module, every layer of condenser pipe receives water module tilt direction equidistantly distributed, and every along condensation
One end of upper layer condenser pipe is connected to one end of adjacent lower condenser pipe, and upper layer condenser pipe is condensate liquid liquid-in pipe, and lower layer is cold
Solidifying pipe is condensate liquid outlet tube.
The condensation in water layer is received into condensation and receives that water module tilt is symmetrically placed to reduce flue gas flow rate, is completed to flue gas condensing
Cool down, increase the density of water mist drop in flue gas in unit volume, increases water mist drop and collide poly- and long maximum probability, while to three Duan Leng
Solidifying and four sections of condensed water droplets receive water.
It is further preferred that the height that water layer is received in condensation is 0.3m-1.0m, the smoke temperature range of decrease that water layer is received in condensation is 1 DEG C -10
℃。
Cold air enters from air-cooled tower bottom, condensate liquid counter current contacting, heat exchange with cooling spraying layer ejection, to condensate liquid
Cool down, the air after heat exchange is discharged from tower top.
Preferably, cooling extent of the condensate liquid in air cooling tower is 5 DEG C -20 DEG C.
The present invention also provides the methods of water resource in a kind of depth recycling wet flue gas, comprising:
(1) low temperature cold lime set by condensation down cycles be pumped into flue gas preliminary condensation layer, destarch demisting layer, deep condensation layer and
The condensate liquid pipeline liquid inlet in water layer is received in condensation, into condensate liquid pipeline；
(2) flue gas after completing wet desulphurization enters flue gas preliminary condensation layer, carries out heat exchange cooling with flue gas preliminary condensation layer, takes off
Flue gas condensing extremely saturation or micro- hypersaturated state after sulphur；
(3) the saturation wet flue gas for completing preliminary condensation enters destarch demisting layer, removes the slurry droplet and powder carried in slurries
Dirt particulate matter, and continue cooling condensation in destarch demisting layer, the partial condensation water that vapor generates carries out destarch demisting layer
Self-cleaning prevents destarch demisting layer from blocking；
(4) the supersaturated flue gas after completing destarch demisting enters deep condensation cooling layer and carries out multistage deep condensation, flue gas
Middle major part vapor condensation cooling generates liquid condensation water；
(5) flue gas for completing deep condensation is discharged after water layer demisting and water saving is received in condensation by exhanst gas outlet at the top of desulfurizing tower；
(6) it completes to send to air cooling tower the high temperature condensate liquid of desulfidation tail gas condensing heat-exchange by pipeline by condensate liquid liquid outlet
Cool down after spraying layer condensation cooling, is used as condensate circulation.
Compared with prior art, beneficial effects of the present invention are as follows:
(1) the present invention provides one kind to be able to achieve desulfidation tail gas water resource recyclable device stable operation solution, uses
Condenser pipe is deleted carries out receipts water to after being saturated for flue gas after desulfurization preliminary condensation again, and the condensed water generated using condensation process is to receipts water
Device carries out self-cleaning, prevents condensation from receiving water process since flue gas unsaturation causes condensing unit surface adhesion slurries and dust to be made
At device fouling blockage, the operation stability of condensation water collector is greatly improved；
(2) the present invention provides a kind of depth recycling wet flue gas in clean water resources solution, by flue gas into
Row preliminary condensation and destarch demisting remove most of gypsum slurries and dust particle in flue gas, significantly reduce deep condensation
Impurity content in the condensed water that process generates realizes that wet desulphurization tail gas directly recycles clean water resources；
(3) the present invention provides a kind of industrial working low water consumption or nearly zero water consumes to produce solution, by wet flue gas into
Row deep condensation recycles the great lot of water resources in wet flue gas and carries out resource utilization, plant area's entirety water consume reduced, in low water consumption
Plant area can realize nearly zero water consume production.
Detailed description of the invention
Fig. 1 is the apparatus structure schematic diagram that depth recycles water resource in wet flue gas；
Fig. 2 is the structural schematic diagram of pipe grating condenser module；
Fig. 3 is destarch demisting layer partial structural diagram；
Appended drawing reference in attached drawing is as follows:
1, desulfurizing tower；2, desulfuration recycle pump；3, condensation down cycles pump；4, air cooling tower；1-1, desulfurization spraying layer；1-2, cigarette
Gas preliminary condensation layer；1-2-1, hollow heat exchanger tube；1-2-2, support fixation elements；1-3, destarch demisting layer；1-3-1, hydrops slot；1-
3-2, condensing heat-exchange module；1-4, hydrops layer；1-5, deep condensation layer；Water layer is received in 1-6, condensation.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawings and examples, it should be pointed out that reality as described below
It applies example to be intended to convenient for the understanding of the present invention, and does not play any restriction effect to it.
As shown in Figure 1, in a kind of depth recycling wet flue gas the device of water resource include desulfurizing tower 1, it is desulfuration recycle pump 2, cold
Solidifying down cycles pump 3, air cooling tower 4, condensation cycle water lines.
Wherein smoke inlet is arranged in 1 bottom sidewall of desulfurizing tower, exhanst gas outlet is arranged in top, bottom is tower reactor in tower.Desulfurization
Desulfurization spraying layer 1-1, flue gas preliminary condensation layer 1-2, destarch demisting layer 1-3, hydrops layer are set above smoke inlet from the bottom to top in tower 1
Water layer 1-6 is received in 1-4, deep condensation cooling layer 1-5, condensation.
Two layers of spray thrower, spray thrower liquid inlet and tower reactor are at least set in desulfurization spraying layer 1-1 and pass through pipeline connection, desulfurization
Circulating pump 2 is arranged on pipeline, and the cleaning solution in tower reactor is delivered to spray thrower, is taken off to the flue gas entered by smoke inlet
Sulfur scrubber.
Air cooling tower 4 includes tower body and the intracorporal condensate liquid cooling spraying layer of tower, and air intake, tower body top is arranged in tower body bottom
Air outlet slit is arranged in portion.
Flue gas preliminary condensation layer 1-2, destarch demisting layer 1-3, deep condensation cooling layer 1-5, condensation are received and are equipped in water layer 1-6
The liquid inlet of condensate liquid pipeline, condensate liquid pipeline is connected to by pipeline with condensation down cycles pump discharge, and condensate liquid liquid outlet is logical
Pipeline is crossed to be connected to air cooling tower cooling spraying layer liquid inlet.Condensate liquid is extracted by condensation down cycles pump 3 from the bottom of air cooling tower 4
Conveying, the condensate outlet of condensing heat exchanger pass through the spraying layer of pipeline overflow to air cooling tower 4, spray through spray atomization tiny
Drop and the heat exchange condensation cooling of the cold air convection of rising, condensate liquid is cooled down 5 DEG C -20 DEG C, the condensate liquid of every layer of cold heat exchanger
Entrance is respectively provided with condensate liquid regulating valve control condensation flow quantity.
Flue gas preliminary condensation layer 1-2 is made of several tubular types condensation demister modules, as shown in Fig. 2, tubular type condenses demister
Module is made of hollow heat exchanger tube 1-2-1 and support fixation elements 1-2-2, hollow heat exchanger tube 1-2-1 entrance by pipeline with it is cold
Solidifying 3 outlet connection of down cycles pump, the hollow outlet heat exchanger tube 1-2-1 is connect by pipeline with spraying layer in air cooling tower 4.Flue gas is pre-
The height of condensate layer 1-2 is 0.1m-0.5m, by adjusting condensation hydraulic control valve control condensation flow quantity, makes flue gas preliminary condensation layer
The flue gas smoke temperature range of decrease of 1-2 is 0.2 DEG C -2 DEG C.Flue gas preliminary condensation layer 1-2 completes the removal that desulfurization spray droplet is carried to flue gas,
Simultaneously tentatively cool down to wet flue gas saturation.
As shown in figure 3, destarch demisting layer 1-3 receives water module by level-one and two sections of condensation module two parts form.Two sections cold
Solidifying module is composed of several condensing heat-exchange module 1-3-2, and condensing heat-exchange module 1-3-2 is by sheet baffle plate and set of heat exchange tubes
At adjacent sheet baffle groups synthesize roof shape, and sheet baffle plate is provided with heat exchanger tube in two sides up and down.Wherein level-one receives water
The hydrops slot 1-3-1 of module is located in the supporting beam of level-one condensation demisting module, and hydrops slot 1-3-1 upper port is against two sections of condensations
The lower end of module roof shape.
On the one hand sheet baffle plate increases heat exchange area, on the other hand collect condensed water as demisting core component.It is adjacent
Sheet baffle groups synthesize roof shape, can increase flue gas area of passage, reduce flue gas flow rate, extend flue gas in destarch demisting layer
Residence time in 1-3 is conducive to two sections of condensation demisting and water savings.In order to increase flue gas condensing cooling extent, each condensing heat-exchange
Heat exchanger tube inlet and outlet in module are connected with heat exchange supervisor's inlet and outlet respectively, and heat exchange supervisor's inlet and outlet pass through pipeline and air cooling tower 4
Bottom connection.The condensation module height of destarch demisting layer 1-3 is 0.5m-1.5m, cold by adjusting condensation hydraulic control valve control
Condensate flow makes 0.5 DEG C -3 DEG C of the flue gas smoke temperature range of decrease of destarch demisting layer 1-3.Destarch demisting layer 1-3 is completed to the wet cigarette of saturation
The solidifying cooling of air cooling and demisting and water saving.
Hydrops layer is located above destarch demisting layer 1-3, completes to three sections and water layer condensation water collection is received in condensation, pass through outlet
Industrial water storage tank is drained into outside to use for industrial production.
Several layers pipe type condensing heat exchanger is arranged in deep condensation cooling layer 1-5, and wherein pipe type condensing heat exchanger exchanges heat
Unit is made of bellows and fin, and bellows increases cold liquid in intraductal turbulance degree, reduces pipe inner boundary layer thermal resistance, fin one
Aspect increases heat exchange area to increase flue gas cool-down amplitude, on the other hand removes the droplet of condensation in flue gas, while right
Entire heat exchanger module is fixed to be supported, and valve control flow of refrigeration fluids is arranged in every layer of heat exchanger entrance, and outlet passes through pipeline and sky
Spraying layer is connected in cold tower 4, runs the condensing heat exchanger number of plies according to entrance flue gas temperature and humidity regulation.Deep condensation cooling
Heat exchanger in layer 1-5 is preferably provided with two layers, and single layer condensation module height is 0.1m-0.5m, interlamellar spacing 0.1m-1.5m, list
The layer heat exchanger smoke temperature range of decrease is 5 DEG C -10 DEG C.
The condensing heat exchanger that condensation is received in water layer 1-6 is similar with the condensing heat exchanger of destarch demisting layer 1-3, by several condensations
Heat exchange module is combined into roof shape, reduces flue gas flow rate, completes to cool down to flue gas condensing, water in flue gas in increase unit volume
The density of droplet increases water mist drop and collides poly- and long maximum probability, while receiving water to three sections of condensations and four sections of condensed water droplets.Condensation
Heat exchange module is by sheet baffle plate and set of heat exchange tubes at setting cold liquid inlet on the upside of condensing heat-exchange module, downside is arranged cold liquid and goes out
Mouthful, the heat exchanger tube inlet and outlet in each heat exchange module are connected with heat exchange supervisor's inlet and outlet respectively, supervisor's inlet and outlet by pipeline and
The connection of 4 spraying layer of air cooling tower, the height that water layer 1-6 is received in condensation is 0.3m-1.0m, four sections of condensing heat exchanger smoke temperature ranges of decrease are 1 DEG C-
10℃。
Flue gas is entered in desulfurizing tower 1 by smoke inlet, is washed by desulfurization spraying layer 1-1, is pre-chilled later using flue gas
Solidifying layer 1-2 removes the desulfurization slurry drop that flue gas carries, and completes preliminary 0.2 DEG C -2 DEG C of condensation cooling to wet flue gas, makes flue gas
Middle vapor reaches saturation state；It is saturated wet flue gas and passes through destarch demisting layer 1-3, since ridge-roof type condensing heat-exchange module increases
Flue gas actual internal area extends flue gas and condensing heat exchanger pipe or baffle plate wall surface time of contact, cigarette to reduce flue gas flow rate
The condensation of gas secondary deep cools down 0.5 DEG C -3 DEG C, and vapor reaches hypersaturated state in flue gas, condenses into fine mist, tiny mist
It drips mutually interpolymerized and grows up, one layer of liquid film of formation is down in the hydrops slot of bottom end along inclined baffle at pipe or wooden partition completes level-one
Recycle-water, while particle dust and fine mist gather and hit wall surface liquid film at big partial size drop in flue gas, dust is by liquid film
" annihilation " capture, the level-one recycle-water containing dust are discharged outside tower by hydrops slot outlet, as wet after precipitation and purification is handled
Method desulphurization system slurrying water and system supplement water；Since wet flue gas passes through two sections of condensation dedusting demistings, obtained purifying smoke
It is saturated wet flue gas for cleaning, cleaning saturation wet flue gas rises through the hydrops slot of hydrops layer 1-4, with the depth above hydrops layer 1-4
Degree condenses cooling layer 1-5 condensing heat exchanger section of jurisdiction wall surface contact cooling, and deep condensation cools down, and layer 1-5 is interior to be arranged at least two layers of section of jurisdiction
Formula condensing heat exchanger, condensing heat exchanger intert fin structure using bellows, and bellows reinforces cold fluid in intraductal turbulance degree,
Inside pipe wall face thermal resistance nearby is reduced, fin increases condensing heat exchanger heat exchange area, improves heat transfer effect, single layer condensing heat exchanger cigarette
Temperature decreases by 5 DEG C -10 DEG C, and saturated steam condenses into tiny water mist drop again in flue gas, and the water mist that flue gas carries drips a part
It is captured with heat exchanger fin collision, liquid film is formed at wall surface or big drop drop to the hydrops slot of lower section, and another part is thin
Small droplet enters condensation with flue gas and receives water layer 1-6, and saturated steam condenses on fine mist surface, and droplet mutually collides poly- and long
Greatly, the condensing heat exchanger module in water layer 1-6 is received due to condensation to arrange using ridge-shaped, increase flue gas circulation area, low stream
Fast flue gas carries droplet and is condensed the capture of heat exchanger traverse baffle wall surface, falls in the hydrops slot of hydrops layer 1-4 and completes second level and return
Water is received, neat stress is discharged by chimney.
Technical solution of the present invention and beneficial effect is described in detail in embodiment described above, it should be understood that
Above is only a specific embodiment of the present invention, it is not intended to restrict the invention, it is all to be done in spirit of the invention
Any modification, supplementary, and equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. the device of water resource in a kind of depth recycling wet flue gas, which is characterized in that including desulfurizing tower, desulfuration recycle pump, condensation
Down cycles pump, air cooling tower；
The desulfurizing tower bottom sidewall is equipped with smoke inlet, top is equipped with exhanst gas outlet, and bottom is tower reactor；In the desulfurizing tower
And be located at smoke inlet above set gradually from the bottom to top desulfurization spraying layer, flue gas preliminary condensation layer, destarch demisting layer, hydrops layer,
Water layer is received in deep condensation cooling layer and condensation；
The desulfurization spraying layer is connected to by the inlet and outlet pipeline of desulfuration recycle pump with tower reactor；
The air cooling tower includes tower body and is arranged in the intracorporal cooling spraying layer of tower；The tower body bottom is equipped with air intake, top
Portion is equipped with air outlet slit；
The flue gas preliminary condensation layer, destarch demisting layer, deep condensation layer and condensation receive and are equipped with condensate liquid pipeline inside water layer, cold
The liquid inlet of lime set pipeline be connected to by pipeline with condensation down cycles pump discharge, the liquid outlet of condensate liquid pipeline pass through pipeline and
The liquid inlet connection of air cooling tower cooling spraying layer；
The destarch demisting layer and hydrops layer bottom is equipped with leakage fluid dram, and by being connected to outside pipeline and desulfurizing tower.
2. the device of water resource in depth recycling wet flue gas according to claim 1, which is characterized in that the flue gas pre-cooling
If main pipe grating condenser module is arranged in solidifying layer, each pipe grating condenser module is changed by the hollow of several layers equidistantly distributed
Heat pipe and support fixation elements composition, condensate liquid circulate in hollow heat exchanger tube.
3. the device of water resource in depth recycling wet flue gas according to claim 1 or 2, which is characterized in that the flue gas
Preliminary condensation layer height is 0.1m-0.5m, and the hollow heat exchanger tube setting number of plies is layer 2-4, and the smoke temperature range of decrease of flue gas preliminary condensation layer is 0.2
℃-2℃。
4. the device of water resource in depth recycling wet flue gas according to claim 1, which is characterized in that the destarch demisting
Layer is made of destarch demisting module, supporting beam and intake chute, is equipped with upper layer and lower layer condenser pipe in the destarch demisting module, if
Dry destarch demisting module tilt is symmetrically placed in supporting beam, and top is installed on two neighboring destarch with the intake chute of draining plate
Demisting module bottom is simultaneously fixed on the outside of supporting beam, and one end of intake chute is equipped with the leakage fluid dram being connected to desulfurizing tower outside.
5. the device of water resource in depth recycling wet flue gas according to claim 4, which is characterized in that in destarch demisting layer
The height of destarch demisting module is 0.5m-1.5m, and the smoke temperature range of decrease of destarch demisting layer is 0.5 DEG C -3 DEG C.
6. the device of water resource in depth recycling wet flue gas according to claim 1, which is characterized in that the depth is cold
Several layers pipe type condensing heat exchanger is set in solidifying layer；The pipe type condensing heat exchanger is rolled over by several metals being equally spaced
Folded blade and two rows equidistantly pass perpendicularly through the condenser pipe composition of metal folding blade, one end of every upper layer condenser pipe with
Adjacent lower layer's condenser pipe connection, and upper layer condenser pipe is condensate liquid liquid-in pipe, lower layer's condenser pipe is condensate liquid outlet tube.
7. the device of water resource in depth recycling wet flue gas according to claim 6, which is characterized in that the depth is cold
In solidifying cooling layer, the height of single layer condensing heat exchanger is 0.1m-0.5m, interlamellar spacing 0.1m-1.5m, single layer condensing heat exchanger
The smoke temperature range of decrease is 5 DEG C -10 DEG C.
8. the device of water resource in depth recycling wet flue gas according to claim 1, which is characterized in that the condensation is received
Water layer is equipped with several upper layer and lower layer condenser pipes that are installed with and tilts symmetrically placed condensation receipts water module, and every layer of condenser pipe receives water along condensation
Module tilt direction equidistantly distributed, and one end of every upper layer condenser pipe is connected to one end of adjacent lower condenser pipe, and on
Layer condenser pipe is condensate liquid liquid-in pipe, and lower layer's condenser pipe is condensate liquid outlet tube.
9. the device of water resource in depth recycling wet flue gas according to claim 8, which is characterized in that the condensation is received
Water layer height is 0.3m-1.0m, and the smoke temperature range of decrease that water layer is received in condensation is 1 DEG C -10 DEG C.
10. a kind of method of water resource in depth recycling wet flue gas, which comprises the steps of:
(1) low temperature cold lime set is pumped into flue gas preliminary condensation layer, destarch demisting layer, deep condensation layer and condensation by condensation down cycles
The condensate liquid liquid inlet in water layer is received, into condensate liquid pipeline；
(2) flue gas after completing wet desulphurization enters flue gas preliminary condensation layer, carries out heat exchange cooling, flue gas after desulfurization with preliminary condensation layer
Condensation extremely saturation or micro- hypersaturated state；
(3) the saturation wet flue gas for completing preliminary condensation enters destarch demisting layer, removes the slurry droplet and dust carried in slurries
Grain object, and continue in destarch demisting layer cooling condensation, the partial condensation water that vapor generates is to destarch demisting at carrying out from clear
It washes, prevents destarch demisting layer from blocking；
(4) the supersaturated flue gas after completing destarch demisting enters deep condensation layer and carries out multistage deep condensation, major part in flue gas
Vapor condensation cooling generates liquid condensation water；
(5) flue gas for completing deep condensation is discharged after water layer demisting and water saving is received in condensation by exhanst gas outlet at the top of desulfurizing tower；
(6) it completes to send to air cooling tower the high temperature condensate liquid of desulfidation tail gas condensing heat-exchange by pipeline by condensate liquid liquid outlet and cool down
After spraying layer condensation cooling, used as condensate circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409189.2A CN110124500B (en) | 2019-05-15 | 2019-05-15 | Device and method for deeply recycling water resources in wet flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409189.2A CN110124500B (en) | 2019-05-15 | 2019-05-15 | Device and method for deeply recycling water resources in wet flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110124500A true CN110124500A (en) | 2019-08-16 |
| CN110124500B CN110124500B (en) | 2021-08-10 |
Family
ID=67574799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910409189.2A Active CN110124500B (en) | 2019-05-15 | 2019-05-15 | Device and method for deeply recycling water resources in wet flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110124500B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420524A (en) * | 2020-04-27 | 2020-07-17 | 大唐环境产业集团股份有限公司 | Demisting water receiver and wet desulphurization tower |
| CN112755740A (en) * | 2021-01-14 | 2021-05-07 | 杭州蕴泽环境科技有限公司 | Wet desulphurization tail gas evaporation water step recovery system and method |
| CN112815742A (en) * | 2020-12-30 | 2021-05-18 | 新兴铸管股份有限公司 | Water replenishing and collecting device for circulating water cooling tower of oxygen generation station |
| CN112960721A (en) * | 2021-01-20 | 2021-06-15 | 华电电力科学研究院有限公司 | Device for treating desulfurization wastewater by using ultra-low temperature flue gas waste heat behind desulfurization absorption tower |
| CN113101779A (en) * | 2021-04-14 | 2021-07-13 | 浙江理工大学 | System and method for purifying industrial flue gas containing sulfur and dust |
| CN113101776A (en) * | 2021-04-29 | 2021-07-13 | 江苏永钢集团有限公司 | Dust removal device for high-speed wire rod rough and medium rolling |
| WO2024068543A1 (en) * | 2022-09-30 | 2024-04-04 | Munters Euroform Gmbh | Droplet separator |
| CN117925289A (en) * | 2024-03-25 | 2024-04-26 | 山西易高煤层气有限公司 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
| CN117925289B (en) * | 2024-03-25 | 2024-06-07 | 山西易高煤层气有限公司 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140078238A (en) * | 2012-12-17 | 2014-06-25 | 한국세라믹기술원 | Dust collector for removing high temperature dust |
| CN207270895U (en) * | 2017-09-11 | 2018-04-27 | 德梅斯特(上海)环保科技有限公司 | A kind of water collection type dedusting demister and system |
| CN108970369A (en) * | 2018-10-09 | 2018-12-11 | 杭州蕴泽环境科技有限公司 | A kind of multisection type high-humidity gas fume device for deep cleaning and its purification process |
-
2019
- 2019-05-15 CN CN201910409189.2A patent/CN110124500B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140078238A (en) * | 2012-12-17 | 2014-06-25 | 한국세라믹기술원 | Dust collector for removing high temperature dust |
| CN207270895U (en) * | 2017-09-11 | 2018-04-27 | 德梅斯特(上海)环保科技有限公司 | A kind of water collection type dedusting demister and system |
| CN108970369A (en) * | 2018-10-09 | 2018-12-11 | 杭州蕴泽环境科技有限公司 | A kind of multisection type high-humidity gas fume device for deep cleaning and its purification process |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420524A (en) * | 2020-04-27 | 2020-07-17 | 大唐环境产业集团股份有限公司 | Demisting water receiver and wet desulphurization tower |
| CN112815742A (en) * | 2020-12-30 | 2021-05-18 | 新兴铸管股份有限公司 | Water replenishing and collecting device for circulating water cooling tower of oxygen generation station |
| CN112815742B (en) * | 2020-12-30 | 2022-11-08 | 新兴铸管股份有限公司 | Water replenishing and collecting device for circulating water cooling tower of oxygen generation station |
| CN112755740A (en) * | 2021-01-14 | 2021-05-07 | 杭州蕴泽环境科技有限公司 | Wet desulphurization tail gas evaporation water step recovery system and method |
| CN112960721A (en) * | 2021-01-20 | 2021-06-15 | 华电电力科学研究院有限公司 | Device for treating desulfurization wastewater by using ultra-low temperature flue gas waste heat behind desulfurization absorption tower |
| CN113101779A (en) * | 2021-04-14 | 2021-07-13 | 浙江理工大学 | System and method for purifying industrial flue gas containing sulfur and dust |
| CN113101776A (en) * | 2021-04-29 | 2021-07-13 | 江苏永钢集团有限公司 | Dust removal device for high-speed wire rod rough and medium rolling |
| WO2024068543A1 (en) * | 2022-09-30 | 2024-04-04 | Munters Euroform Gmbh | Droplet separator |
| CN117925289A (en) * | 2024-03-25 | 2024-04-26 | 山西易高煤层气有限公司 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
| CN117925289B (en) * | 2024-03-25 | 2024-06-07 | 山西易高煤层气有限公司 | Wet natural gas drying equipment for natural gas liquefaction pretreatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110124500B (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110124500A (en) | A kind of depth recycles the device and method of water resource in wet flue gas | |
| CN103868087B (en) | A kind of collaborative enhancing PM2.5The method of elimination and fume afterheat deep exploitation and device | |
| CN109045953A (en) | A kind of cooling dehumidification by condensation decontamination reheating of flue gas disappears white system and method | |
| CN107321124A (en) | The regulation and control of coal-burning power plant's energy-saving dedusting synergy cooperative intelligentization remove white system and method | |
| CN106474860A (en) | Wet desulfurization flue gas processing system and processing method | |
| CN206823458U (en) | A kind of coal-burning power plant's energy-saving dedusting synergy cooperative intelligentization regulation and control remove white system | |
| CN207533038U (en) | Receive water dedusting demisting formula flue gas processing device | |
| CN205032022U (en) | Ash -laden gas condensation heat recovery and gas cleaning integration system | |
| CN109126331A (en) | A kind of device and method for eliminating the coloured plume of wet desulphurization | |
| CN105080245A (en) | System and method for integrally recycling condensation heat energy of flue gas with dust and purifying flue gas | |
| CN110124465A (en) | A kind of low energy consumption wet flue gas receives water and disappears white device and method | |
| CN109351117A (en) | A kind of wet flue gas demisting and water saving integrated apparatus | |
| CN108926953A (en) | One kind condensing again steam-heated white plume governing system based on fluorine plastic-steel | |
| CN109099451A (en) | A kind of flue gas energy-saving and emission-reduction disappear Bai Wuchong heat-exchange system | |
| CN110124347A (en) | A kind of energy and water saving type flue gas purification device and method | |
| CN208742284U (en) | A kind of single column washing Wet fume sweetening dust remover of no stock tank secondary cycle | |
| CN109663490A (en) | Wet desulfurization flue gas condenser system and flue gas condensing method with water balance function | |
| CN105854483A (en) | Dedusting flue for reinforcing fine particle surface steam adsorption and growing up processes, system and method | |
| CN112774426A (en) | Desulfurization degree of depth is carried and is imitated and flue gas condensation integrated device | |
| CN210045079U (en) | System for eliminating colored smoke plume cooperatively | |
| CN209049193U (en) | Steam-heated white plume governing system is condensed again based on fluorine plastic-steel | |
| CN209524531U (en) | A kind of system of coal-fired flue-gas minimum discharge collaboration UTILIZATION OF VESIDUAL HEAT IN | |
| CN205386406U (en) | Pollutant pretreater based on flue gas condensation | |
| CN209576182U (en) | Wet flue gas demisting and water saving integrated apparatus | |
| CN208983391U (en) | Flue gas energy-saving and emission-reduction disappear Bai Wuchong heat-exchange system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230608 Address after: 832000 2 North East Road, Shihezi, the Xinjiang Uygur Autonomous Region Patentee after: XINJIANG TIANFU ENERGY Co.,Ltd. Patentee after: HANGZHOU YUNZE ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Patentee after: XINJIANG TIANFU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: Room 605, Minghao building, 1688 Binsheng Road, Binjiang District, Hangzhou City, Zhejiang Province 310051 Patentee before: HANGZHOU YUNZE ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |