CN108443904A - A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system - Google Patents
A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system Download PDFInfo
- Publication number
- CN108443904A CN108443904A CN201810352836.6A CN201810352836A CN108443904A CN 108443904 A CN108443904 A CN 108443904A CN 201810352836 A CN201810352836 A CN 201810352836A CN 108443904 A CN108443904 A CN 108443904A
- Authority
- CN
- China
- Prior art keywords
- heat
- heat pipe
- flue gas
- flue
- temperature
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Chimneys And Flues (AREA)
Abstract
Disappear white system the invention discloses a kind of power-plant flue gas based on heat pipe heat exchanging technology, system includes desulfation dust-extraction device, flue, chimney, heat exchange of heat pipe, again heat exchanger are equipped with inside flue successively, the heat pipe evaporator section is arranged inside flue, heat pipe condenser section is in closed case, and is connected with low-temperature cooling water.Heat exchanger, heat exchange of heat pipe are the ND Steel materials of corrosion-resistant good heat conductivity again.The technological process of the system：Low-temperature cooling water absorbs the waste heat of high-temperature flue gas by heat exchange of heat pipe, and high-temperature flue gas release heat simultaneously generates condensed water, and temperature, pollutant load reduce；High-temperature steam heats the flue gas after cooling by heat exchanger again so that discharge flue-gas temperature increases, and relative humidity reduces.It by this system, effectively solves chimney of electric plant and emits white cigarette phenomenon, avoid lower gypsum rain around power plant, while solving low-temperature flue gas violent etching problem of the indiffusion to chimney in chimney for a long time.The problems such as compared to other technologies, this system is stable, environmental pollution is small, and the energy for avoiding other technologies heat release and heating mismatches.
Description
Technical field：
Disappear white system the present invention relates to power-plant flue gas, relates in particular to a kind of power-plant flue gas based on heat pipe heat exchanging technology
Disappear white system.
Background technology：
With the rapid economic development in our country, power consumption is also in growing day by day, coal-fired plant flue gas meeting after wet desulphurization
A large amount of moisture is carried, current processing method is to remove the flue gas in desulfurizing tower containing in humid gas by wet electrical dust precipitator
The harmful substances such as dirt, acid mist, water droplet, aerosol, stink after, be drained into air by chimney, but due to this method at
Flue-gas temperature after reason is relatively low, and humidity is bigger than normal, the undercapacity of chimney, will produce a large amount of dense white cigarettes, is unfavorable for dirt
Object is contaminated in high aerial quick diffusion.In addition, existing method to that cannot recycle profit well in flue gas in acid condensed water
With, and have very strong corrosivity to chimney, while the small molecule particle content in chimney is still larger, even if passing through chimney
Discharge also would seriously pollute the environment.Currently, the prior art there are problems that, such as flue gas is carried out using heat pump techniques first cold
But in the method for heating after cooling down, although being feasible in principle, it is poor that there is also stability, and heat release heat release heat mismatches etc.
Problem.
Invention content
Low to solve above-mentioned flue-gas temperature, moisture is big, and particle content is high, is unfavorable for chimney smoke and quickly spreads, flue gas
The problems such as middle acidity is excessively high to chimney seriously corroded, and that there are stability is poor for the prior art, heat release heat release heat mismatches, the present invention
A kind of power-plant flue gas based on heat pipe heat exchanging technology is provided to disappear white system.
A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system, including desulfurizing tower dust-extraction unit, flue, chimney,
The flue is connected with desulfation dust-extraction device and chimney, is equipped with heat exchange of heat pipe successively in the flue, reheating exchanges heat
Device.
Preferably, heat exchange of heat pipe is divide into upper part and lower part, and is made of evaporator section and condensation segment, the heat exchange of heat pipe
Evaporating section in flue, heat pipe evaporator section wall surface is directly contacted with flue gas, and the heat exchange of heat pipe, which is equipped with, to be consolidated
Frame is determined to prevent the problems such as being deformed caused by smoke-shock from influencing heat transfer effect.Preferably, below the fixed frame of heat pipe evaporator section
If condensed water catch basin, reservoir bases setting exports and is connected with condensed water water collector and water treatment facilities.
Preferably, the condensation segment of heat exchange of heat pipe is in babinet.Babinet setting inlet and outlet respectively with cooling water supply pipe
Road is connected with water return pipeline, and cooling water pipeline sets cooling water circulating pump.The babinet seal, heat insulating ability are good.It is excellent
Choosing, heat exchange of heat pipe, again heat exchanger are the ND Steel materials of corrosion-resistant good heat conductivity.Preferred reheating heat exchanger setting
Inlet and outlet, are connected respectively at steam supply pipeline with condensate line.Preferably, heat pipe evaporator section, water tank cooling water are for water return pipeline, steaming
Vapour is all provided with temp probe and water tank cooling water for return pipe road and is all provided with flowmeter for return pipe road for water return pipeline, steam.
The present invention has the following advantages compared with prior art：
1, when flue gas passes through heat exchange of heat pipe evaporator section, heat pipe evaporator section internal working medium undergoes phase transition the heat absorbed in flue gas
Amount, Working fluid phase changing rise to heat pipe condenser section for gaseous state and reject heat to cooling water, and working medium is condensed into liquid, and so cycle can
While to effectively reduce flue-gas temperature, since heat pipe evaporator section wall surface is less than the dew-point temperature of flue gas, flue gas can be precipitated greatly
Condensed water is measured, while the concentration of pollutant in flue gas can be reduced.Due to heat pipe be it is closed, internal working medium not with flue gas fluid
It is in direct contact, therefore can recycle, reduce later maintenance etc..
2, heat exchanger again, is heated to flue gas using power plant steam, and reheating efficiency of heat exchanger is higher, and power plant steams
Vapour is easy to obtain, and implements to be warming up to it 70-80 DEG C using steam after first cooling, dehumidification to flue gas, then by smoke stack emission,
This system can effectively eliminate the phenomenon that low-temperature flue gas direct emission encounters cold air and generates white cigarette.
3, by the way that condensed water water collector and sewage disposal device is arranged, pollutant in flue gas can be effectively reduced
Content avoids lower gypsum rain around power plant, while solving low-temperature flue gas play of the indiffusion to chimney in chimney for a long time
Strong etching problem.
Description of the drawings：
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies mode to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is that the power-plant flue gas based on heat pipe heat exchanging technology disappears white system process figure.
(1) desulfation dust-extraction device；(2) flue；(3) heat exchange of heat pipe；(4) heat exchanger again；
(5) chimney；(6) heat pipe evaporator section；(7) heat pipe condenser section；(8) cooling water supply pipe；
(9) cooling water return pipe；(10) for steam pipework；(11) steam condensation water export pipeline；
(12) flue entrance；(13) condensed water water collector and sewage disposal system.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.As shown in Figure 1, the invention discloses one kind to be based on
The power-plant flue gas of heat pipe heat exchanging technology disappears white system, and system includes desulfation dust-extraction device (1), flue (2), chimney (5), flue
(2) internal to be equipped with heat exchange of heat pipe (3), again heat exchanger (4) successively, the heat pipe evaporator section is arranged inside flue, heat
Pipework condensation section (7) is in closed case, and is connected with low-temperature cooling water.Babinet setting inlet and outlet respectively with cooling water pipeline
(8) it is connected with cooling water return pipe road (9).Again heat exchanger (4) setting inlet and outlet, respectively with for steam pipework (10), steam
Vapor condensed water export pipeline (11) is connected.
Flue gas passes through desulfation dust-extraction device (1), enters heat exchange of heat pipe (3), flue gas and heat pipe evaporator section by flue (2)
(6) it is in direct contact, heat pipe evaporator section (6) internal working medium undergoes phase transition the heat absorbed in flue gas, and gaseous working medium rises to heat pipe
Condensation segment (7), heat pipe condenser section (7) are in closed babinet, reject heat to cooling water, and working medium condensation mutually becomes liquid
Body, cooling water enter sink by cooling water pipeline (8), absorb the heat that heat pipe condenser section (7) discharges, pass through cooling water
Water return pipeline (9) is discharged, while so cycle can effectively reduce flue-gas temperature, since heat pipe evaporator section (6) wall surface is low
In the dew-point temperature of flue gas, condensed water can be precipitated in flue gas, while can reduce the concentration of pollutant in flue gas.Heat exchange of heat pipe
(3) condensation-water drain is arranged in bottom, is connect with condensed water water collector and sewage disposal system (13).Condensed water is drained by processing
It is outdoor.Flue gas, into heat exchanger again (4), passes through from power plant steam for steam pipe after heat exchange of heat pipe (3) cooling
Flue gas is heated on road (10), and vapor (steam) temperature reduces after heat exchange, is discharged by (11) steam (vapor) outlet pipeline, flue gas heating
It to 70-80 DEG C, is then discharged by chimney (5), encountering cold air compared with low-temperature flue gas direct emission will appear showing for generation white cigarette
As this system is available to effectively eliminate white cigarette.
Present invention work is realized in：
It can be divided into when specific implementation：
First stage：
Flue gas passes through desulfation dust-extraction device (1), enters heat exchange of heat pipe (3), flue gas and heat pipe evaporator section by flue (2)
(6) it is in direct contact, the evaporative phase-change of heat pipe evaporator section (6) working medium absorbs the heat in flue gas, and gaseous working medium rises to heat pipe cold
Solidifying section (7), heat pipe condenser section (7) are in closed case, reject heat to cooling water, working medium condensation, cooling water is through supercooling
But water water supply pipe (8) enters babinet, absorbs the heat that heat pipe condenser section (7) discharges, is arranged by cooling water return pipe road (9)
Go out, so cycle can effectively reduce flue-gas temperature.
Second stage：
Heat pipe evaporator section (6) wall surface is less than the dew-point temperature of flue gas, and condensed water can be precipitated in flue gas, while can reduce flue gas
The concentration of middle pollutant.Condensation-water drain is arranged in heat exchange of heat pipe (3) bottom, with condensed water water collector and sewage disposal system
(13) it connects.Condensed water drains into outdoor by processing.
Phase III：
Flue gas, into heat exchanger again (4), passes through steam supply after heat exchange of heat pipe (3) cooling from power plant steam
Pipeline (10) heats flue gas, and vapor (steam) temperature reduces after heat exchange, is discharged by the condensate export pipeline of (11) steam,
Flue gas is warming up to 70-80 DEG C, is then discharged by chimney (5), encounters cold air compared with low-temperature flue gas direct emission and will appear generation
The phenomenon that white cigarette, this system is available to effectively eliminate white cigarette.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (4)
- The white system 1. a kind of power-plant flue gas based on heat pipe heat exchanging technology disappears, including desulfation dust-extraction device (1), flue (2), chimney (5), the flue (2) is connected with desulfation dust-extraction device (1) and chimney (5), is changed successively equipped with heat pipe in the flue Hot device (3), again heat exchanger (4).The heat exchange of heat pipe (3) is divide into upper part and lower part, and is made of evaporator section (6) and condensation segment (7), the heat pipe changes The evaporator section (6) of heat is in flue, and heat pipe evaporator section (6) wall surface is directly contacted with flue gas, the heat exchange of heat pipe Fixed frame is equipped with to prevent the problems such as being deformed caused by smoke-shock from influencing heat transfer effect.The heat exchange of heat pipe (3) Lower section setting exports and is connected with condensed water water collector and water treatment system (13).
- The white system 2. a kind of power-plant flue gas based on heat pipe heat exchanging technology according to claim 1 disappears, it is characterised in that：Institute The heat pipe condenser section (7) stated is in closed case.Babinet setting inlet and outlet respectively with cooling water pipeline (8) and return pipe Road (9) is connected, and the babinet seal, heat insulating ability are good.
- The white system 3. a kind of power-plant flue gas based on heat pipe heat exchanging technology according to claim 1 disappears, it is characterised in that：Institute The heat exchange of heat pipe (3) stated, heat exchanger (4) is the ND Steel materials of corrosion-resistant good heat conductivity again.
- The white system 4. a kind of power-plant flue gas based on heat pipe heat exchanging technology according to claim 1 disappears, it is characterised in that：Institute Heat exchanger again (4) the setting inlet and outlet stated, are connected with steam pipework (10), steam condensation water export pipeline (11) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810352836.6A CN108443904A (en) | 2018-04-19 | 2018-04-19 | A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810352836.6A CN108443904A (en) | 2018-04-19 | 2018-04-19 | A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443904A true CN108443904A (en) | 2018-08-24 |
Family
ID=63201055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810352836.6A Pending CN108443904A (en) | 2018-04-19 | 2018-04-19 | A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443904A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621560A (en) * | 2019-01-13 | 2019-04-16 | 上海务宝智能装备有限公司 | A kind of acid regeneration tail gas clean-up and emission-reducing process and equipment |
| CN109806751A (en) * | 2019-03-25 | 2019-05-28 | 周岩 | A kind of low energy consumption fire coal boiler fume takes off white system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040977A1 (en) * | 2011-09-19 | 2013-03-28 | 上海康洪精密机械有限公司 | System for improving utilization grade of waste heat of flue gas |
| CN203115934U (en) * | 2012-12-24 | 2013-08-07 | 山东荷能节能环保科技有限公司 | Device for efficiently recovering flue gas waste heat for generating steam |
| CN203349281U (en) * | 2013-05-21 | 2013-12-18 | 汕头市松炀纸业有限公司 | Tail gas heat energy recycling system of papermaking boiler |
| CN103940246A (en) * | 2013-01-17 | 2014-07-23 | 北京朗新明环保科技有限公司 | Low-temperature flue gas waste heat recovery device |
| CN104964265A (en) * | 2015-06-15 | 2015-10-07 | 杭州华电能源工程有限公司 | Energy-saving emission reduction system and energy-saving emission reduction method of horizontal type phase change heat exchanger and front-arrangement type water medium type GGH combined |
| CN107631290A (en) * | 2017-09-14 | 2018-01-26 | 北京建筑大学 | A kind of flue gas waste heat recovery system absorbed based on film |
-
2018
- 2018-04-19 CN CN201810352836.6A patent/CN108443904A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040977A1 (en) * | 2011-09-19 | 2013-03-28 | 上海康洪精密机械有限公司 | System for improving utilization grade of waste heat of flue gas |
| CN203115934U (en) * | 2012-12-24 | 2013-08-07 | 山东荷能节能环保科技有限公司 | Device for efficiently recovering flue gas waste heat for generating steam |
| CN103940246A (en) * | 2013-01-17 | 2014-07-23 | 北京朗新明环保科技有限公司 | Low-temperature flue gas waste heat recovery device |
| CN203349281U (en) * | 2013-05-21 | 2013-12-18 | 汕头市松炀纸业有限公司 | Tail gas heat energy recycling system of papermaking boiler |
| CN104964265A (en) * | 2015-06-15 | 2015-10-07 | 杭州华电能源工程有限公司 | Energy-saving emission reduction system and energy-saving emission reduction method of horizontal type phase change heat exchanger and front-arrangement type water medium type GGH combined |
| CN107631290A (en) * | 2017-09-14 | 2018-01-26 | 北京建筑大学 | A kind of flue gas waste heat recovery system absorbed based on film |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621560A (en) * | 2019-01-13 | 2019-04-16 | 上海务宝智能装备有限公司 | A kind of acid regeneration tail gas clean-up and emission-reducing process and equipment |
| CN109806751A (en) * | 2019-03-25 | 2019-05-28 | 周岩 | A kind of low energy consumption fire coal boiler fume takes off white system |
| CN109806751B (en) * | 2019-03-25 | 2021-08-24 | 周岩 | Low-energy-consumption coal-fired boiler flue gas whitening system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11821637B2 (en) | Energy-saving system using electric heat pump to deeply recover flue gas waste heat from heat power plant for district heating | |
| CN105879596B (en) | A kind of absorption desulfurization fume dehumidification system and method | |
| CN107860153B (en) | Energy-saving water-saving coal-fired boiler wet flue gas deep comprehensive treatment system and method | |
| CN202769692U (en) | Thermodynamic system for coal-fired power plant boiler flue gas waste heat recovery and waste emission reduction | |
| CN110425902A (en) | A kind of wet-method desulfurized fume waste heat recycling system and method | |
| CN204923035U (en) | Processing system is synthesized to coal fired boiler's flue gas | |
| CN106017154B (en) | A kind of heat transmission equipment for flue gas desulfurization | |
| CN102997267B (en) | Smoke reheating device of combining phase-change heat exchanger with net gas heater | |
| CN202092207U (en) | Central heating system recovering waste heat of smoke through absorbing type heat pump | |
| CN207379110U (en) | A kind of energy-saving and water-saving type coal-burning boiler wet flue gas depth total system | |
| CN106110826B (en) | A kind of flue gas water pumping system of wet desulphurization | |
| CN107327863A (en) | Suitable for the flue gas purification system and flue gas purifying method of gas turbine | |
| CN108479289A (en) | A kind of white-smoke-removing system and technique accurately controlling corrosion | |
| CN214635248U (en) | Waste heat utilization system of clean flue gas of desulfurization | |
| CN108469033A (en) | A kind of dehumidifying decontamination heating of flue gas condensing disappears white heat exchanger | |
| CN108800975A (en) | A kind of flue gas cooling heat exchanger of the desulfurization duct mouth with refrigerating plant | |
| CN109395540B (en) | Raw flue gas sensible heat deep utilization regeneration system | |
| CN108443904A (en) | A kind of power-plant flue gas based on heat pipe heat exchanging technology disappears white system | |
| CN209371290U (en) | A kind of flue gas deep treatment and waste-heat recovery device based on heat pipe heat exchanging technology | |
| CN208406509U (en) | A kind of white-smoke-removing system of accurate control corrosion rate | |
| CN112844032B (en) | Wet desulfurization flue gas dehumidification and heat extraction method and desulfurization tower device | |
| CN110075698A (en) | The flue gas advanced purification system and its method that energy-saving plume is eliminated | |
| CN109442452B (en) | Flue gas treatment system for recycling flue gas waste heat and moisture | |
| CN208382203U (en) | A kind of dehumidifying decontamination heating of flue gas condensing disappears white heat exchanger structure | |
| CN208320385U (en) | A kind of elimination white cigarette device for wet fuel gas desulfurizing technology |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180824 |