CN108518700A - A kind of system and technique eliminated boiler and industrial furnace chimney and emit white cigarette - Google Patents
A kind of system and technique eliminated boiler and industrial furnace chimney and emit white cigarette Download PDFInfo
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- CN108518700A CN108518700A CN201810414205.2A CN201810414205A CN108518700A CN 108518700 A CN108518700 A CN 108518700A CN 201810414205 A CN201810414205 A CN 201810414205A CN 108518700 A CN108518700 A CN 108518700A
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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
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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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
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses systems and technique that a kind of elimination boiler and industrial furnace chimney emit white cigarette, it is constituted including heat pump, sulfur removal technology water- to-water heat exchanger, steam air heater, supply water heater and several inlet and outlet pipe lines and cigarette air duct, wherein heat pump is used for generating water at low temperature draw heat from low-temperature heat source sulfur removal technology water, to reduce the flue-gas temperature of desulfurizing tower outlet, the moisture that the flue gas of desulfurizing tower outlet contains is reduced；Heat pump will produce high-temperature water simultaneously, it is used as the heat source heating cold air of steam air heater, the extra heat winter of recycling can be used for externally heating simultaneously, non- warm season can be used for heating make-up water, realize flue gas waste heat recovery and the white double action that disappears, in the case where not influencing boiler operatiopn, the zero cost operation for the white technique that disappears is realized.
Description
Technical field
The invention belongs to flue gases purification field, more particularly to a kind of elimination boiler of power plant or industrial furnace chimney emit white
The system and technique of cigarette.
Background technology
Wet Flue Gas Desulfurization Technique has the advantages that desulfuration efficiency is high, operating cost is low etc., to be widely used in power station pot
The flue gas desulfurization of stove or industrial furnace is discharged with reducing pollutant SOx in flue gas.It is determined by the characteristic of Wet Flue Gas Desulfurization Technique,
Flue gas after wet desulphurization contains a large amount of vapor, and the moisture in desulfurizing tower exiting flue gas has had reached saturation state,
In this way when flue gas is exhausted to the atmosphere from the chimney in environment, since environment temperature is low compared with exhaust gas temperature, and temperature is lower, flue gas
In saturated vapor partial pressure it is also lower, absolute moisture content is also smaller, so moisture extra in flue gas will be precipitated, becomes
Tiny droplet visually shows as chimney and emits white cigarette.With increasingly strict, existing multiple cities of various regions environmental protection policy
Environmental protection administration requires city and its periphery power plant to accomplish that chimney eliminates white cigarette (" disappearing white ") qualified discharge afterwards.
It includes mainly flue gas method, flue gas condensing+heating, hot-air dilution method by the way of that flue gas, which disappears white, at present
Deng.Above method to consume the additional energy as cost, there is high energy consumption, operating cost is high, equipment investment is big etc. asks
Topic, especially boiler of power plant smoke evacuation exhaust gas volumn are big, and the energy consumed required for heating flue gas is huge, and heat transmission equipment volume is big, makes
Must eliminate chimney emit white cigarette system investment and operating cost it is high, bring larger pressure for the efforts at environmental protection of enterprise
Power.
Invention content
Technical problem present in for the above-mentioned prior art, the object of the present invention is to provide a kind of elimination boiler and industry
Stove chimney emits the system and technique of white cigarette, and while elimination chimney emits white cigarette, the waste heat in recovered flue gas is not influencing pot
In the case that stove is run, the zero cost operation for the white technique that disappears is realized.
Patent of the present invention the technical solution adopted is that：
A kind of system eliminated boiler and industrial furnace chimney and emit white cigarette, including heat pump, sulfur removal technology water- to-water heat exchanger, warm wind
Device, supply water heater；
The heat pump is used for generating water at low temperature from low-temperature heat source draw heat, and generates high-temperature water；The heat pump it is low
Warm water inlet tube and low temperature water outlet pipe are connected with the sulfur removal technology water- to-water heat exchanger as low-temperature heat source；The sulfur removal technology
Water- to-water heat exchanger is connected by sulfur removal technology water inlet pipe and sulfur removal technology water outlet pipe with desulfurizing tower；The high-temperature water of the heat pump
Inlet tube and high temperature water outlet pipe are connected with steam air heater；The steam air heater entrance is provided with cold-air duct, steam air heater outlet
It is provided with hot-air duct, hot-air duct is connected with the entrance of low-temperature air preheater；The outlet of low-temperature air preheater
Be connected to high-temperature air preheater entrance, the high-temperature air preheater outlet high temperature air part by air pipeline with
The flue connected between desulfurizing tower, chimney is connected.
Further, the high temperature water outlet pipe is connected with the hot water inlet pipe of steam air heater, the high temperature water inlet
Pipe is connected with the hot water outlet pipe of steam air heater；The high-temperature water of entrance heats cold air.
Further, in winter, the extra heat of heat pump will by heating pipe network outlet pipe and heating pipe network return pipe with
External heating pipe network connects, and heat is provided for external heat user, to bring good economic benefit for enterprise；The i.e. described high temperature
Water outlet pipe and high-temperature water inlet tube are also connect by heating pipe network outlet pipe and heating pipe network return pipe with external heating pipe network,
Heat is provided for external heat user.
Further, the high-temperature water inlet tube of the heat pump and high temperature water outlet pipe are also connected with supply water heater；
The extra heat of heat pump recycling heats make-up water by supply water heater, and make-up water enters supply by make-up water water inlet pipe
Water heater is completed to enter oxygen-eliminating device through make-up water outlet pipe after heating.
Further, the most of high temperature air come out from high-temperature preheater supplies boiler through boiler hot-air duct, is
Fuel combustion provides oxygen, and other fraction high temperature airs enter the flue connected between desulfurizing tower, chimney through air pipeline.
The present invention also provides the technique that a kind of elimination boiler and industrial furnace chimney emit white cigarette, the desulfurization from desulfurizing tower
Process water enters sulfur removal technology water- to-water heat exchanger, is changed with the water at low temperature from heat pump in the sulfur removal technology water- to-water heat exchanger
Heat, the sulfur removal technology water after temperature reduces return to desulfurizing tower, complete the cycle of sulfur removal technology water；Water at low temperature from heat pump is completed
Heat pump is returned to after heat exchange, the high-temperature water that heat pump generates enters steam air heater, after steam air heater high temperature water completes heat exchange, again returns to
Heat pump completes the closed cycle of heat pump high-temperature water；Cold air enters steam air heater, after the high-temperature water heating from heat pump, through warm
The outlet of wind device enters low-temperature air preheater, then enters high-temperature air preheater through being air connected pipeline；From high-temperature preheater
Most of high temperature air out supplies boiler through boiler hot-air duct, provides oxygen for fuel combustion, other fractions are high
Warm air enters desulfurizing tower exhaust pass, and is mixed with the wet flue gas from desulfurizing tower in flue, and high temperature air is utilized
The low characteristic of the high water capacity of temperature, improves the temperature of flue gas, reduces it with respect to moisture content, causes a deviation from the saturated vapor of wet flue gas
Force curve is divided, flue gas is avoided to emit white cigarette.
Further, heat extra in the heat pump will by heating pipe network outlet pipe and heating pipe network return pipe with it is outer
Portion's heating network connection, heat is provided for external heat user, to bring preferable economic benefit for enterprise.
Further, the extra heat of heat pump recycling heats make-up water by supply water heater, and make-up water is by mending
Water supply water inlet pipe enters supply water heater, completes to enter oxygen-eliminating device through make-up water outlet pipe after heating；With improve make-up water into
The temperature for entering oxygen-eliminating device reduces the steam consumption of oxygen-eliminating device, reaches energy-efficient purpose.
Preferably, the low temperature coolant-temperature gage that the heat pump generates is 15~25 DEG C, and the temperature of high-temperature water is 50~80 DEG C.The temperature difference
When larger, the COP of heat pump is relatively low, and the power consumption of heat pump is higher, and operating cost is big, and synthesis energy saving effect is deteriorated.
Preferably, the temperature of sulfur removal technology water reduces by 2~5 DEG C, and the heat exchanger area that excessive temperature drop needs is larger, system
Investment is higher.
Preferably, air temperature after steam air heater is increased to 20~50 DEG C, and excessively high temperature will lead to steam air heater ruler
Very little excessive, air drag is consequently increased.
Preferably, air and hot water are countercurrent flow in the steam air heater, to ensure to obtain higher preheated air temperature,
Reduce the volume of steam air heater simultaneously.
Preferably, sulfur removal technology water and heat pump water at low temperature countercurrent flow, sulfur removal technology in the sulfur removal technology water- to-water heat exchanger
The material of water- to-water heat exchanger reduces the corrosion of desulfurization water heat exchanging device using resistant materials such as fluoroplastics or stainless steels.
The present invention operation principle be：
Heat pump is used for generating water at low temperature from low-temperature heat source draw heat, and generates high-temperature water.Sulfur removal technology water is as low temperature
Heat source transfers heat to the water at low temperature of heat pump by sulfur removal technology water- to-water heat exchanger；Sulfur removal technology water is extracted temperature after heat
It reduces, is then sprayed into desulfurizing tower；In the case where other conditions are constant, desulfurizing tower outlet flue-gas temperature will with reduction,
Saturated steam partial pressure also decreases, i.e., the absolute moisture content in flue gas is reduced, and desulfurizing tower outlet is reduced to realize
The purpose of flue-gas temperature and water capacity.Heat pump extracts heat from low-temperature heat source (sulfur removal technology water) during the work time, will absorb
Heat transfer to high-temperature water, transfer of the heat from low-temperature heat source to high temperature heat source has been achieved.The high-temperature water that heat pump generates
It is used as the heat source of Boiler Air Heater's, cold air is transferred heat to through steam air heater, cold air is heated, is existed even if obtaining air
It is preheated first before into air preheater.In order to avoid improving caused air preheater heat transfer due to inlet air temp
The problem of amount is reduced will improve the air quantity by air preheater, although Wen Sheng of the air in preheater in this way is reduced,
It is that its caloric receptivity can be kept to be basically unchanged since air capacity increases.And add into (exceed the required air of boiler combustion
Amount), this part hot-air after air preheater heats be used to be mixed with the flue gas that desulfurizing tower exports, such one
Aspect achievees the purpose that improve flue-gas temperature, simultaneously because the water capacity of hot-air is far smaller than the water capacity for being saturated wet flue gas,
To play the purpose of dilution saturation wet flue gas.By the effect in terms of two above so that the flue gas of chimney breast is far from wet cigarette
The saturated humidity curve of gas is white to achieve the purpose that disappear.
Since the heat of the hot wind of dilution comes from the heat that heat pump is absorbed from low-temperature heat source, for boiler,
Hot air temperature is constant, and flow is constant, so the efficiency to boiler has no adverse effects；And the temperature model used by this project
It encloses, for the COP of heat pump up to 5 or more, the heat of absorption still can have extra heat externally to supply in winter after heating air
Warm or summer heats make-up water, economic benefit caused by heating and/or heating make-up water be more than heat pump operating cost and
Additional wind turbine power consumption expense, therefore the system can reach zero run comprehensive cost or even can get a profit, to solve often
The financial burden that the white technology that disappears is brought to enterprise is advised, there is good feasibility and economy.
On the one hand the energy of heat pump recycling is used for disappearing white processing to carrying out flue gas, on the other hand, the extra heat of recycling
Winter can be used for externally heating, and non-warm season can heat make-up water by feeding water- to-water heat exchanger, improve the temperature of make-up water,
The steam consumption for reducing oxygen-eliminating device, reaches energy-efficient purpose.
Beneficial effects of the present invention are：
By flue gas waste heat recovery and flue gas disappear it is white be combined together, on the one hand by the heat in recovered flue gas, reduce de-
The moisture that sulphur tower exit gas temperature and flue gas carry, the heat on the other hand recycled heat air by steam air heater, utilize heat
The high characteristic of air humidity content low temperature, by the method blended with flue gas, improving the temperature of flue gas reduces its opposite moisture content,
The saturated vapor partial pressure force curve for causing a deviation from wet flue gas, avoids flue gas from emitting white cigarette.In this way the case where not influencing boiler operatiopn
Under, realize the zero cost operation for the white system that disappears.Simultaneously as the side that the heating of flue gas is directly blended using hot-air
Formula avoids the problem of flue gas heat-exchange unit caused when heating flue gas using conventional flue gas heat-exchange unit blocks, and is improving equipment
While safety in operation, reduce equipment investment.Furthermore due to the presence of steam air heater, improve the entrance of air preheater
Air themperature avoids the low-temperature corrosion of air preheater.The energy on the one hand recycled using this method can be used for flue gas
The white processing that disappears is carried out, on the other hand, the extra heat winter of recycling can be used for externally heating rather than warm season can be used for
Make-up water is heated, to bring good economic benefit for enterprise.
The invention is particularly suited to carry out waste heat recovery and the white processing that disappears to boiler of power plant or industrial furnace smoke evacuation, pot is solved
The phenomenon that stove or industrial furnace chimney emit white cigarette.Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is the system schematic for eliminating the method that boiler and industrial furnace chimney emit white cigarette.
In figure：1, desulfurizing tower, 2, water pump, 3, sulfur removal technology water inlet pipe, 4, sulfur removal technology water outlet pipe, 5, sulfur removal technology
Water- to-water heat exchanger, 6, heat pump low temperature water outlet pipe, 7, heat pump water at low temperature inlet tube, 8, heat pump, 9, steam air heater entrance cold-air duct,
10, steam air heater, 11, steam air heater export hot-air duct, 12, steam air heater hot water inlet pipe, 13, steam air heater hot water outlet pipe, 14,
Heat pump high-temperature water inlet tube, 15, heat pump high temperature water outlet pipe, 16, low-temperature air preheater, 17, heating pipe network outlet pipe, 18,
Heating pipe network return pipe, 19, high-temperature air preheater, 20, boiler hot-air duct, 21, high temperature dilution air pipeline, 22, mend
Water supply water inlet pipe, 23, make-up water outlet pipe, 24, supply water heater, 25, desulfurizing tower exhaust pass, 26, chimney.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
As background technology is introduced, it includes mainly that flue gas method, flue gas are cold by the way of that flue gas, which disappears white, at present
Solidifying+heating, hot-air dilution method etc..Above method is to consume the additional energy as cost, and there is high energy consumption, operations
Of high cost, the problems such as equipment investment is big, especially boiler of power plant smoke evacuation exhaust gas volumn are big, and the energy consumed required for heating flue gas is huge
Greatly, heat transmission equipment volume is big so that elimination chimney emits the investment of white cigarette system and operating cost remains high, and is the environmental protection of enterprise
Work brings larger pressure, and in order to solve technical problem as above, present applicant proposes a kind of elimination boiler and industrial furnaces
Kiln chimney emits the system and technique of white cigarette.
In a kind of typical embodiment of the application, as shown in Figure 1, in the embodiment shown in fig. 1, a kind of elimination pot
The system that stove and industrial furnace chimney emit white cigarette；By heat pump 8, sulfur removal technology water- to-water heat exchanger 5, steam air heater 10, supply water heater
24 and several inlet and outlet pipe lines and cigarette air duct constitute.
Heat pump 8 is used for generating water at low temperature from low-temperature heat source draw heat, and generates high-temperature water；The water at low temperature of the heat pump 8
Inlet tube and low temperature water outlet pipe are connected with the sulfur removal technology water- to-water heat exchanger as low-temperature heat source；The sulfur removal technology water changes
Hot device 5 is connected by sulfur removal technology water inlet pipe and sulfur removal technology water outlet pipe with desulfurizing tower 1；The high-temperature water of the heat pump 8
Inlet tube and high temperature water outlet pipe are connected with steam air heater 10；The outlet hot-air duct of the steam air heater is preheated with Cryogenic air
The entrance of device 16 is connected；The entrance of the outlet high-temperature air preheater 19 of low-temperature air preheater, the high temperature are empty
On the one hand the outlet of air preheater 19 is connected by the desulfurizing tower exhaust pass 25 connected between air pipeline and desulfurizing tower, chimney
It is logical；Another party's face diameter boiler hot air pipeline 20 supplies boiler.
Specific implementing process is as follows：
Sulfur removal technology water from desulfurizing tower 1 enters sulfur removal technology water by water pump 2 and sulfur removal technology water inlet pipe 3 and exchanges heat
Device 5 exchanges heat in the sulfur removal technology water- to-water heat exchanger 5 with the water at low temperature from heat pump 8, through sulfur removal technology after temperature reduction
Water outlet pipe 4 returns to desulfurizing tower, completes the cycle of sulfur removal technology water；Water at low temperature from heat pump is through heat pump low temperature water outlet pipe 6
Into sulfur removal technology water- to-water heat exchanger, closed through the return heat pump of heat pump water at low temperature inlet tube 7, formation heat pump water at low temperature after completing heat exchange
Road recycles；
The high-temperature water that heat pump generates enters steam air heater 10 or supply water heater 24 through heat pump high temperature water outlet pipe 15
Or/and to heating network, after completing heat exchange in above equipment, heat pump is returned through heat pump high-temperature water inlet tube 14, is completed hot
Pump the closed cycle of high-temperature water；
The purpose of steam air heater is preheated to cold air, and cold air enters warm through 10 entrance cold-air duct 9 of steam air heater
Wind device 10 enters low-temperature air preheater 16 after the high-temperature water heating from heat pump through steam air heater outlet hot-air duct 11,
Then enter high-temperature air preheater 19 through air connecting tube.High-temperature water from heat pump enters through steam air heater hot water inlet pipe 12
Steam air heater is completed to return to heat pump through steam air heater hot water outlet pipe 13 after exchanging heat in steam air heater；
The extra heat of heat pump recycling heats make-up water by supply water heater 24, and make-up water is intake by make-up water
Pipe 22 enters supply water heater, completes to enter oxygen-eliminating device (being not drawn into figure) through make-up water outlet pipe 23 after heating, to improve
Make-up water enters the temperature of oxygen-eliminating device, reduces the steam consumption of oxygen-eliminating device, reaches energy-efficient purpose.
Winter extra heat will pass through heating pipe network outlet pipe 17 and heating pipe network return pipe 18 and external heating pipe network
Connection, heat is provided for external heat user, to bring preferable economic benefit for enterprise.
The most of high temperature air come out from high-temperature preheater supplies boiler through boiler hot-air duct 20, is fuel combustion
Oxygen is provided, other fraction high temperature airs enter desulfurizing tower exhaust pass 25 through high temperature dilution air pipeline 21, and in flue
It is interior to be mixed with the wet flue gas from desulfurizing tower, using the low characteristic of the high water capacity of high temperature air temperature, improve the temperature of flue gas
Degree reduces it with respect to moisture content, causes a deviation from the saturated vapor partial pressure force curve of wet flue gas, flue gas is avoided to emit white cigarette.After mixing
Flue gas be discharged in atmospheric environment through chimney 26.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. the system that a kind of elimination boiler and industrial furnace chimney emit white cigarette, which is characterized in that changed including heat pump, sulfur removal technology water
Hot device, steam air heater, supply water heater；
The heat pump is used for generating water at low temperature from low-temperature heat source draw heat, and generates high-temperature water；The water at low temperature of the heat pump
Inlet tube and low temperature water outlet pipe are connected with the sulfur removal technology water- to-water heat exchanger as low-temperature heat source；The sulfur removal technology water changes
Hot device is connected by sulfur removal technology water inlet pipe and sulfur removal technology water outlet pipe with desulfurizing tower；The high temperature water inlet of the heat pump
Pipe and high temperature water outlet pipe are connected with steam air heater；The steam air heater entrance is provided with cold-air duct, steam air heater outlet setting
There are hot-air duct, hot-air duct to be connected with the entrance of low-temperature air preheater；The outlet of low-temperature air preheater
The high temperature air part of the entrance of high-temperature air preheater, the outlet of the high-temperature air preheater by air pipeline and takes off
The flue connected between sulphur tower, chimney is connected.
2. eliminating boiler as described in claim 1 and industrial furnace chimney emitting the system of white cigarette, which is characterized in that the height
Warm water export pipe is connected with the hot water inlet pipe of steam air heater, hot water outlet pipe's phase of the high-temperature water inlet tube and steam air heater
Connection.
3. eliminating boiler as described in claim 1 and industrial furnace chimney emitting the system of white cigarette, which is characterized in that the height
Warm water export pipe and high-temperature water inlet tube are also connected by heating pipe network outlet pipe and heating pipe network return pipe with external heating pipe network
It connects, heat is provided for external heat user.
4. eliminating boiler as described in claim 1 and industrial furnace chimney emitting the system of white cigarette, which is characterized in that described
The high-temperature water inlet tube and high temperature water outlet pipe of heat pump are also connected with supply water heater；The extra heat of heat pump recycling passes through
It feeds water heater and heats make-up water, make-up water enters supply water heater by make-up water water inlet pipe, completes after heating through mending
Water supply outlet pipe enters oxygen-eliminating device.
5. a kind of technique eliminated boiler and industrial furnace chimney and emit white cigarette, which is characterized in that the sulfur removal technology from desulfurizing tower
Water enters sulfur removal technology water- to-water heat exchanger, exchanges heat with the water at low temperature from heat pump in the sulfur removal technology water- to-water heat exchanger, temperature
Sulfur removal technology water after degree reduces returns to desulfurizing tower, completes the cycle of sulfur removal technology water；Water at low temperature from heat pump completes heat exchange
After return to heat pump, the high-temperature water that heat pump generates enters steam air heater, after steam air heater high temperature water completes heat exchange, again returns to heat
Pump completes the closed cycle of heat pump high-temperature water；Cold air enters steam air heater, after the high-temperature water heating from heat pump, through warm wind
Device outlet enters low-temperature air preheater, then enters high-temperature air preheater through being air connected pipeline；Go out from high-temperature preheater
The most of high temperature air come supplies boiler through boiler hot-air duct, and oxygen, other fraction high temperature are provided for fuel combustion
Air enters desulfurizing tower exhaust pass, and is mixed with the wet flue gas from desulfurizing tower in flue, and flue gas is avoided to emit white cigarette.
6. a kind of technique eliminated boiler and industrial furnace chimney and emit white cigarette as claimed in claim 5, which is characterized in that heat pump
In extra heat will be connect with external heating pipe network by heating pipe network outlet pipe and heating pipe network return pipe, used for external heat
Family provides heat.
7. a kind of technique eliminated boiler and industrial furnace chimney and emit white cigarette as claimed in claim 5, which is characterized in that described
The extra heat of heat pump recycling heats make-up water by supply water heater, and make-up water enters supply by make-up water water inlet pipe
Water heater is completed to enter oxygen-eliminating device through make-up water outlet pipe after heating.
8. a kind of technique eliminated boiler and industrial furnace chimney and emit white cigarette as claimed in claim 5, which is characterized in that described
The low temperature coolant-temperature gage that heat pump generates is 15~25 DEG C, and the temperature of high-temperature water is 50~80 DEG C；The temperature reduction by 2 of sulfur removal technology water~
5℃；Air temperature after steam air heater is increased to 20~50 DEG C.
9. a kind of technique eliminated boiler and industrial furnace chimney and emit white cigarette as claimed in claim 5, which is characterized in that described
Air and hot water are countercurrent flow in steam air heater.
10. a kind of technique eliminated boiler and industrial furnace chimney and emit white cigarette as claimed in claim 5, which is characterized in that institute
Sulfur removal technology water and heat pump water at low temperature countercurrent flow in sulfur removal technology water- to-water heat exchanger are stated, sulfur removal technology water- to-water heat exchanger is using corrosion-resistant
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414205.2A CN108518700A (en) | 2018-05-03 | 2018-05-03 | A kind of system and technique eliminated boiler and industrial furnace chimney and emit white cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414205.2A CN108518700A (en) | 2018-05-03 | 2018-05-03 | A kind of system and technique eliminated boiler and industrial furnace chimney and emit white cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518700A true CN108518700A (en) | 2018-09-11 |
Family
ID=63430343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810414205.2A Withdrawn CN108518700A (en) | 2018-05-03 | 2018-05-03 | A kind of system and technique eliminated boiler and industrial furnace chimney and emit white cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518700A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869950A (en) * | 2018-12-29 | 2019-06-11 | 中民电力有限公司 | A kind of gas fired-boiler flue gas air source heat pump air inlet system |
| CN113494717A (en) * | 2021-05-26 | 2021-10-12 | 长春国信新城供热工程有限公司 | Novel heating system |
-
2018
- 2018-05-03 CN CN201810414205.2A patent/CN108518700A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869950A (en) * | 2018-12-29 | 2019-06-11 | 中民电力有限公司 | A kind of gas fired-boiler flue gas air source heat pump air inlet system |
| CN113494717A (en) * | 2021-05-26 | 2021-10-12 | 长春国信新城供热工程有限公司 | Novel heating system |
| CN113494717B (en) * | 2021-05-26 | 2023-06-06 | 长春国信新城供热工程有限公司 | Heat supply system |
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Application publication date: 20180911 |
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