CN208990564U - A kind of integrated fume denitration heat exchanger loading denitrating catalyst - Google Patents
A kind of integrated fume denitration heat exchanger loading denitrating catalyst Download PDFInfo
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- CN208990564U CN208990564U CN201821696591.0U CN201821696591U CN208990564U CN 208990564 U CN208990564 U CN 208990564U CN 201821696591 U CN201821696591 U CN 201821696591U CN 208990564 U CN208990564 U CN 208990564U
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Abstract
The utility model discloses a kind of integrated fume denitration heat exchanger for loading denitrating catalyst, including side frame and heat exchange core body, the side frame is located at the heat exchange core body two opposite sides, the quadrangle of the heat exchange core body is fixed by the corresponding positioning of corner post, the heat exchange core body includes several heat exchanger plates, spoiler between adjacent heat exchanger plates, side coupling bar connected components, angle coupling bar connected components and side sealing strip, the arbitrary neighborhood heat exchanger plates of several heat exchanger plates form the exhaust gases passes and cold fluid pass of right-angled intersection, and exhaust gases passes and cold fluid pass are not connected, filling is provided with denitrating catalyst in the exhaust gases passes, the denitrating catalyst is arranged by the supports support among exhaust gases passes and exit.The utility model is structurally reasonable, it is easily manufactured, while Mist heat recovering have the function of denitration, it is heat-exchange integrated to realize denitration, has saved space occupied, catalyst loading and unloading is convenient.
Description
Technical field
The utility model relates to a kind of integrated fume denitration heat exchangers for loading denitrating catalyst.
Background technique
Industrial furnace belongs to energy consumption and disposal of pollutants rich and influential family in all trades and professions, typically constitutes from full factory's energy consumption
50% ~ 70%, the source that almost all atmosphere pollutions generate.
The energy-saving and emission-reduction of industrial furnace are extremely important.
In common denitration technology, according to the formation mechenism of nitrogen oxides, the technical measures for dropping nitrogen emission reduction can be divided into two
Major class:
One kind is administered from source.NOx is generated in control combustion process.Its technical measures: 1. low NO；2. firing
Burner ladder arrangement, layer and section burning, controls ignition temperature；3. flue gas recirculation etc..
Another kind of is from end treatment.The NOx discharged in control flue gas, technical measures: 1. " fractional combustion+SNCR "；
2. selective non-catalytic reduction method (SNCR)；3. selective catalytic reduction (SCR)；3. SNCR/SCR combined denitration technology；④
Oxidant (e.g., ozone, hydrogen peroxide or other oxidants) oxidation and denitration technology；5. biological denitrification technology.
Using low nitrogen and (or) super low NO, NOx concentration in the industrial kiln gas of fuel fuel gas can be made to reduce
To 50 ~ 100mg/Nm3。
But low nitrogen or super low NO are higher to the stability requirement of fuel component, once component occurs big
Fluctuation, denitrification effect decline therewith, it is easy to so that NOx emission is exceeded.And some industries, e.g., petrochemical industry industry
The fuel used generally self-produced fuel of furnace, with the variation of its raw material sources and component, the component variation of byproduct fuel gas is very
Greatly, calorific value variation range is 30% or so.
With the increase of environmentally friendly dynamics, be used alone low NO come denitration measure be not able to satisfy it is more and more harsh
Environment protection emission index requirement.
This just needs to carry out denitration using the mode of end treatment, that is, meets emission request using the method for denitrating flue gas.
SCR technology (SCR) is most mature gas denitrifying technology at present, it is denitration side after a kind of furnace
Method.Comercial operation is completed in the later period 60 ~ seventies 20th century by Japan earliest, is to be urged using reducing agent (NH3, urea) in metal
Under agent effect, is selectively reacted with NOx and generate N2And H2O, rather than by O2Oxidation, therefore it is known as " selectivity ".The world at present
The SCR technique of upper prevalence is broadly divided into ammonia process SCR and two kinds of urea method SCR.This both of which is to utilize reduction of the ammonia to NOx
NOx (mainly NO) is reduced to be not much atmosphere the N of influence under the effect of the catalyst by function2And water, reducing agent are
NH3。
SCR method denitration technology is the method for the removal NOx of mainstream in the world, and this method can be in existing industrial furnace system
Denitrification apparatus is added in system, under an oxygen-containing atmosphere, the limited catalytic process reacted with NO in exhaust gas of reducing agent is known as selectivity and urges
Change reduction.
SCR method denitrating system application temperature is generally at 200 ~ 450 DEG C.
SCR catalyst is the core of SCR denitration system, is generally divided into flat, cellular and three kinds of corrugated plate dst.
The denitration of low-temperature flue gas can also apply ozone (O3) and/or 27% ~ 50% hydrogen peroxide (peroxidating of concentration
Hydrogen H2O2) etc. strong oxidizers, under the effect of the catalyst, the low order nitrogen oxides in flue gas be high-order nitrogen
Oxide, reuses alkaline solution and neutralization reaction occurs for high-order nitrogen oxides, generates NO3-N and NO2-N, reaches denitration
Purpose.
Oxidizing process denitration application temperature window is generally at 90 DEG C ~ 200 DEG C.
In order to meet discharge standard requirement, industrial furnace carry out increase denitrating system transformation or newly-built industrial furnace system
Denitrating system is set in system.Installation denitrating system must be separately provided in the suitable temperature range section of industrial furnace system.It occupies
Industrial furnace system limited space.
Present industrial furnace system is provided with flue gas waste heat recovery system, is used for recovered flue gas waste heat, improves industrial furnace heat
Efficiency reduces fuel consumption.
Main exhaust heat recovering method is to improve combustion air come preheated burning air using fume afterheat and enter furnace temperature
Degree reduces exhaust gas temperature, reaches energy-efficient purpose.
Denitrating catalyst reactor and air preheater belong to two sets of equipment, respectively occupy the space and position respectively needed
It sets.
General industry furnace enters the flue-gas temperature range before air preheater between 250 ~ 450 DEG C.In most of cigarettes
In qi exhaustion denox catalyst reaction temperature section.
General industry furnace goes out the flue-gas temperature range of air preheater between 140 ~ 180 DEG C.The thermal efficiency 90% ~ 93%,
It is relatively low.To improve industrial furnace thermal efficiency, low-temperature air preheater or other heat exchangers are set in existing preheater downstream, are flue gases
Temperature be reduced to 90 DEG C hereinafter, the thermal efficiency is improved to 95% or more.
Oxidizing process denitrating catalyst is loaded in the exhaust gases passes of low-temperature pre-heater, and the mesh of denitration is reached while heat exchange
's.
For the occupancy for reducing space, the especially limitation of existing equipment transformation space, denitration catalyst reactor and air are solved
Preheater respectively independently occupies the confined space and has become urgent problem to be solved instantly.
Utility model content
The purpose of this utility model is to provide it is a kind of it is structurally reasonable, easily manufactured, have while Mist heat recovering
There is denitration function, it is heat-exchange integrated to realize denitration, has saved space occupied, and catalyst loading and unloading is convenient, after catalyst inactivation, only
Decaying catalyst need to be drawn off, recharge the filling denitrating catalyst recharged after raw catelyst or catalyst regeneration
Integrated fume denitration heat exchanger.
The technical solution of the utility model is a kind of integrated fume denitration heat exchanger for loading denitrating catalyst, including
Side frame and heat exchange core body, the side frame are located at the heat exchange core body two opposite sides, and the quadrangle of the heat exchange core body passes through angle
The corresponding positioning of column is fixed, and the heat exchange core body includes spoiler, the side connection bolt group between several heat exchanger plates, adjacent heat exchanger plates
Part, angle coupling bar connected components and side sealing strip, the arbitrary neighborhood heat exchanger plates of several heat exchanger plates form the exhaust gases passes of right-angled intersection
And cold fluid pass, and exhaust gases passes and cold fluid pass are not connected, the exhaust gases passes include flue gas setting up and down into
Mouth and exhanst gas outlet, the cold fluid pass include the cold fluid inlet and cold fluid outlet that front and back is arranged, the exhaust gases passes
Interior filling is provided with denitrating catalyst, and the denitrating catalyst is set by the supports support among exhaust gases passes and exit
It sets.
In one preferred embodiment of the utility model, the denitrating catalyst includes preformed catalyst and catalysis in bulk
Agent, the preformed catalyst are corrugated plate shape or S shape or polyline shaped or are formed with heat exchanger plates " herring-bone form " of flue gas circulation passage
Or the irregular shape catalyst of rectangular or square honeycomb or hexagonal honeycomb shape or other and heat exchanger plates formation flue gas circulation passage
Or the combination of above structure, the corrugated plate shape catalyst are to be packed among dual damascene plate or S shape to press from both sides plate catalyst knot
Structure is packed among dual damascene plate or S shape the structure for having the spacing of metal or non-metallic material to support；The catalysis in bulk
Agent is the combination that graininess or column of various shapes and/or sphere and/or various shape body are capable of forming gap and space
Structure.
In one preferred embodiment of the utility model, the various of several regular arrangements are provided on the preformed catalyst
Regular shape and/or irregular hole.
In one preferred embodiment of the utility model, between adjacent heat exchanger plates using riveting or be bolted or
Bolt riveting combination connection, and be coated with heat-proof corrosion resistant in heat exchanger plates contact surface and lose inorganic or organic sealant sealing.
In one preferred embodiment of the utility model, using welded connecting between adjacent heat exchanger plates.
In one preferred embodiment of the utility model, adjacent heat exchanger plates are welded by the sealing strip between heat exchanger plates to be connected
It connects.
In one preferred embodiment of the utility model, the heat exchanger plates are bolted with corner post or riveting, and
It is coated with heat-proof corrosion resistant in the two contact surface and loses inorganic or organic sealant sealing.
In one preferred embodiment of the utility model, the heat exchanger plates and corner post are using welded connecting.
Integrated fume denitration heat exchanger described in the utility model for a kind of filling denitrating catalyst, the utility model knot
Structure is reasonable, it is easily manufactured, while Mist heat recovering have the function of denitration, it is heat-exchange integrated to realize denitration, saves
Space occupied, catalyst loading and unloading are convenient, after catalyst inactivation, decaying catalyst need to only be drawn off, recharge raw catelyst or
It is recharged after catalyst regeneration.
Detailed description of the invention
Fig. 1 is in a kind of one preferred embodiment of integrated fume denitration heat exchanger for loading denitrating catalyst of the utility model
Explosive view；
Fig. 2 is in a kind of one preferred embodiment of integrated fume denitration heat exchanger for loading denitrating catalyst of the utility model
The perspective view for being filled with single layer corrugated plating catalyst；
Fig. 3 is in a kind of one preferred embodiment of integrated fume denitration heat exchanger for loading denitrating catalyst of the utility model
The perspective view for being filled with the intermediate double-deck corrugated plating catalyst for being plate catalyst；
Fig. 4 is in a kind of one preferred embodiment of integrated fume denitration heat exchanger for loading denitrating catalyst of the utility model
The perspective view for being filled with herring-bone form catalyst；
Fig. 5 is in a kind of one preferred embodiment of integrated fume denitration heat exchanger for loading denitrating catalyst of the utility model
The perspective view for being filled with rectangular or square honeycombed catalyst；
Fig. 6 is in a kind of one preferred embodiment of integrated fume denitration heat exchanger for loading denitrating catalyst of the utility model
The perspective view for being filled with hexagonal honeycomb shape catalyst.
Specific embodiment
The preferred embodiment of the utility model is described in detail below, so that the advantages of the utility model and feature energy
It is easier to be readily appreciated by one skilled in the art, to be more clearly defined the protection scope of the utility model.
It is described in the utility model to combine figure for a kind of integrated fume denitration heat exchanger for loading denitrating catalyst, such as Fig. 1
Shown in 2- Fig. 6, including side frame 1 and heat exchange core body, the side frame 1 are located at the heat exchange core body two opposite sides, the heat exchange
The quadrangle of core is fixed by the corresponding positioning of corner post 2, and the heat exchange core body includes disturbing between several heat exchanger plates 3, adjacent heat exchanger plates
Flow part 4, while coupling bar connected components, angle coupling bar connected components and while sealing strip, side sealing strip includes flue gas side sealing strip 8 and sky
Gas side side sealing strip 9, the arbitrary neighborhood heat exchanger plates 3 of several heat exchanger plates 3 form the exhaust gases passes 5 and cold fluid pass of right-angled intersection
6, and exhaust gases passes 5 and cold fluid pass 6 are not connected, the exhaust gases passes 5 include gas inlet and flue gas setting up and down
Outlet, the cold fluid pass 6 include the cold fluid inlet and cold fluid outlet of front and back setting, filling in the exhaust gases passes 5
It is provided with denitrating catalyst 7, the denitrating catalyst 7 is arranged by the supports support among exhaust gases passes 5 and exit.
The denitrating catalyst 7 includes preformed catalyst and bulk catalyst, and the preformed catalyst is corrugated plate shape or S
Shape or polyline shaped or " herring-bone form " or rectangular or square honeycomb or the hexagon bee that flue gas circulation passage is formed with heat exchanger plates
The combination of nest shape or other and the irregular shape catalyst or above structure of heat exchanger plates formation flue gas circulation passage, the corrugated plate shape are urged
Agent is to be packed among dual damascene plate or S shape to press from both sides plate catalyst structure or be packed among dual damascene plate or S shape to have
The structure of the spacing of metal or non-metallic material support to guarantee that flue gas comes into full contact with catalyst, and enhances flue gas heat exchange effect
Rate, (attached drawing is not drawn for the various shape rule that several regular arrangements are provided on the preformed catalyst and/or irregular hole
Out), because the desulphurization catalyst loaded in exhaust gases passes can form flue gas circulation passage with heat exchanger plates, the stream of flue gas is not influenced
It is logical, and the disturbance degree of flow of flue gas can be increased, it is advantageous to conducting heat, it is especially provided with the preformed catalyst of hole, it is more efficient,
Its heat exchange efficiency wants high compared with general heat exchanger.
The bulk catalyst is that graininess or column of various shapes and/or sphere and/or various shape body can
Form the composite structure in gap and space.
Between adjacent heat exchanger plates 3 using riveting or be bolted or bolt riveting combination connection, and heat exchanger plates 3 connect
Contact surface is coated with heat-proof corrosion resistant and loses inorganic or organic sealant sealing, uses and is welded to connect between adjacent heat exchanger plates 3, adjacent heat exchange
Plate 3 is welded to connect by the sealing strip between heat exchanger plates.
The heat exchanger plates 3 are bolted with corner post 2 or riveting, and are coated with heat-proof corrosion resistant in the two contact surface
Inorganic or organic sealant sealing is lost, the heat exchanger plates 3 are with corner post 2 using welded connecting.
The also corresponding assembling of the smoke inlet of the application exhaust gases passes is provided with denitration air preheater, in pre-heater inlet cigarette
Denitrfying agent distribution nozzle system is suitably provided on road, the denitrfying agent outside system enters through piping and metering device is
System, is ejected under the catalyst action in exhaust gases passes by nozzle and is reacted with the NOx in flue gas, reaches removing NOx's
Purpose.
Denitrfying agent distribution nozzle system also can be set between the emptying of industrial furnace convection provided pipe；Also it can be set
At transition flue duct at the top of convection current and convection current between flue.
Denitrating catalyst can be ammonia, ammonium hydroxide, chemical fertilizer hydrolysis or pyrolysis ammonia either ozone or hydrogen peroxide or ozone and
The combination of the different proportion of hydrogen peroxide.
All types of industries furnace, boiler denitrating flue gas and residual neat recovering system in, assembled with the heat-exchange integrated core of denitration
Integral denitration air preheater can be used for high temperature, in mild low temperature denitrating flue gas and waste heat exhausting section.
Its denitration efficiency is related with institute's loading catalyst performance, general up to 90% or more.It is fired equipped with low nitrogen or ultralow nitrogen
It is applied on the industrial furnace of burner, NOx emission concentration can be made steadily to drop to 20mg/Nm3Below.
The molding loaded in heat exchanger exhaust gases passes or bulk catalyst are according to flue-gas temperature gradient and heat exchange plate surface temperature
Gradient fills high temperature, medium temperature, low temperature and/or ultralow temperature catalyst, so that catalyst is constantly in its temperature in heat exchanger respectively
In window, guarantee denitration efficiency.
When being filled with preformed catalyst, at smoke inlet end catalyst end be provided with guard catalyst from or reduce cigarette
The guard block that gas directly washes away.
Inlet and outlet on fume side and cold flow side are provided with diversion component, reduce fluid flow resistance.
Cold fluid can also be other liquid and/or gas cold medium other than being air.
It is reserved with space or additional preparing catalyst layer in the smoke inlet upstream of integrated denitration preheater, is used for
Within the device cycle of operation, denitration efficiency decline has on this preheater flue gas entrance and simple denitrating catalyst bed is arranged,
To reach denitration effect.
Heat exchanger plates material can be carbon steel, ND steel, stainless steel, compound according to use occasion temperature range and particular/special requirement
The combination of plate or non-metallic material or various material.
Heat exchanger plates can be plate, and various shape turbulent is arranged between adjacent panels, on the one hand plays spacing and support is made
With one side plays augmentation of heat transfer.
Heat exchanger plates can be the flanging plate of surrounding flanging and the contrary quadrangle corner cut of adjacent both sides flanging, and in phase
Various shape turbulent is set between adjacent plate, on the one hand plays spacing and supporting role, on the one hand plays augmentation of heat transfer.
Heat exchanger plates can be surrounding flanging and the contrary quadrangle corner cut of adjacent both sides flanging, and has among plate and pass through
Shaping jig equipment (punching press, molding etc.) molding corrugated plating, ripple at staggeredly or linear arrangement.Corrugated shape can be bowl
Type, butterfly, dome-type, semiellipse ball-type, droplet-shaped, fairing, hyperbolic-type, diamond shape, waveform, S type.
Heat exchanger plates are also possible to through shaping jig equipment (punching press, molding etc.) molding corrugated plating, ripple at staggeredly or
Linear arrangement.Corrugated shape can be bowl-type, butterfly, dome-type, semiellipse ball-type, droplet-shaped, fairing, hyperbolic-type, water chestnut
Shape, waveform, S type.
Heat exchanger plates can be surrounding flanging and the contrary plate quadrangle of adjacent both sides flanging has without corner cut, and among plate
By shaping jig equipment (punching press, molding etc.) molding corrugated plating, ripple is at staggeredly or linear arrangement.
Corrugated shape can be bowl-type, butterfly, dome-type, semiellipse ball-type, droplet-shaped, fairing, hyperbolic-type, water chestnut
Shape, waveform, S type.
Side sealing strip section is rectangular or rectangle.
Side sealing strip section is also possible to " u "-shaped, " oval " shape, shuttle shape, the U-typed with seal groove, the side with seal groove
Shape or rectangle.
The heat exchanger plates of surrounding flanging can not set side sealing strip.
Turbulent can be solid or hollow cylindricality (round, oval, oval, rectangle, polygon, diamond shape, hyperbolic-type, water
The various shapes such as drop type, streamlined), cylindricality can be straight, waveform, S type, Z-type, Π type, Σ type etc..
Turbulent can be solid or hollow bar shaped, and section can be round, ellipse, ellipsoid, rectangle, polygon
The various shapes such as shape, diamond shape, droplet-shaped, streamlined, waveform, H-type, drum, S type, Z-type, Π type, Σ type), bar shaped can be
Straight, waveform, c-type, S type etc..
According to locating temperature range and corrosive environment, material can be metal or nonmetallic or surface to be had again turbulent
Close the metal or nonmetallic of layer.
Integrated fume denitration heat exchanger described in the utility model for a kind of filling denitrating catalyst, the utility model knot
Structure is reasonable, it is easily manufactured, while Mist heat recovering have the function of denitration, it is heat-exchange integrated to realize denitration, saves
Space occupied, catalyst loading and unloading are convenient, after catalyst inactivation, decaying catalyst need to only be drawn off, recharge raw catelyst or
It is recharged after catalyst regeneration.
The foregoing is merely specific embodiment of the present utility model, but the protection scope of the utility model is not limited to
This, anyone skilled in the art, can be without creative work in the technical scope disclosed by the utility model
The change or replacement expected, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model
It should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of integrated fume denitration heat exchanger for loading denitrating catalyst, including side frame and heat exchange core body, the side frame
Frame is located at the heat exchange core body two opposite sides, and the quadrangle of the heat exchange core body is fixed by the corresponding positioning of corner post, the heat exchange core
Body include spoiler between several heat exchanger plates, adjacent heat exchanger plates, while coupling bar connected components, angle coupling bar connected components and while seal
Item, it is characterised in that: the arbitrary neighborhood heat exchanger plates of several heat exchanger plates form the exhaust gases passes and cold fluid pass of right-angled intersection, and
Exhaust gases passes and cold fluid pass are not connected, and the exhaust gases passes include gas inlet and exhanst gas outlet setting up and down, institute
Stating cold fluid pass includes the cold fluid inlet and cold fluid outlet that front and back is arranged, and filling is provided with denitration in the exhaust gases passes
Catalyst, the denitrating catalyst are arranged by the supports support among exhaust gases passes and exit.
2. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 1, it is characterised in that: described
Denitrating catalyst includes preformed catalyst and bulk catalyst, the preformed catalyst be corrugated plate shape or S shape or polyline shaped or
With heat exchanger plates formed flue gas circulation passage " herring-bone form " rectangular or square honeycomb or hexagonal honeycomb shape or other with
Heat exchanger plates form the combination of the irregular shape catalyst or above structure of flue gas circulation passage, and the corrugated plate shape catalyst is to be packed into
Pressing from both sides plate catalyst structure among dual damascene plate or S shape or being packed among dual damascene plate or S shape has metal or nonmetallic
The structure of the spacing support of material；The bulk catalyst is for graininess or column of various shapes and/or sphere and/or respectively
Kind bodies is capable of forming the composite structure in gap and space.
3. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 2, it is characterised in that: described
Be provided on preformed catalyst several regular arrangements various shape rule and/or irregular hole.
4. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 1, it is characterised in that: adjacent
It using riveting or is bolted or bolt riveting combination connection between heat exchanger plates, and is coated with heatproof in heat exchanger plates contact surface
Corrosion-resistant inorganic or organic sealant sealing.
5. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 1, it is characterised in that: adjacent
Using welded connecting between heat exchanger plates.
6. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 1, it is characterised in that: adjacent
Heat exchanger plates are welded to connect by the sealing strip between heat exchanger plates.
7. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 1, it is characterised in that: described
Heat exchanger plates and corner post are bolted or riveting, and it is inorganic or have secret to be coated in the two contact surface heat-proof corrosion resistant erosion
Sealing sealing.
8. the integrated fume denitration heat exchanger of filling denitrating catalyst according to claim 1, it is characterised in that: described
Heat exchanger plates and corner post are using welded connecting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821696591.0U CN208990564U (en) | 2018-10-19 | 2018-10-19 | A kind of integrated fume denitration heat exchanger loading denitrating catalyst |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821696591.0U CN208990564U (en) | 2018-10-19 | 2018-10-19 | A kind of integrated fume denitration heat exchanger loading denitrating catalyst |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921373A (en) * | 2020-08-11 | 2020-11-13 | 福建龙净环保股份有限公司 | Flue gas cooperative purification system and flue gas cooperative purification method |
| CN114165318A (en) * | 2021-12-09 | 2022-03-11 | 天津大学合肥创新发展研究院 | Integrated device inner core for recovering waste heat of tail gas of internal combustion engine and post-processing |
| CN114653407A (en) * | 2022-02-28 | 2022-06-24 | 壹科帆(浙江)科技有限公司 | Pillow-shaped corrugated plate type hollow self-heating ultralow-temperature denitration catalyst |
| CN114719366A (en) * | 2022-03-17 | 2022-07-08 | 北京热博仕数据科技发展有限公司 | Low-temperature plasma heat recovery purifier |
-
2018
- 2018-10-19 CN CN201821696591.0U patent/CN208990564U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921373A (en) * | 2020-08-11 | 2020-11-13 | 福建龙净环保股份有限公司 | Flue gas cooperative purification system and flue gas cooperative purification method |
| CN114165318A (en) * | 2021-12-09 | 2022-03-11 | 天津大学合肥创新发展研究院 | Integrated device inner core for recovering waste heat of tail gas of internal combustion engine and post-processing |
| CN114165318B (en) * | 2021-12-09 | 2023-07-25 | 天津大学合肥创新发展研究院 | Integrated device inner core for recovering and post-treating waste heat of tail gas of internal combustion engine |
| CN114653407A (en) * | 2022-02-28 | 2022-06-24 | 壹科帆(浙江)科技有限公司 | Pillow-shaped corrugated plate type hollow self-heating ultralow-temperature denitration catalyst |
| CN114653407B (en) * | 2022-02-28 | 2024-04-26 | 壹科帆(浙江)科技有限公司 | Pillow-shaped corrugated plate type hollow self-heating ultralow-temperature denitration catalyst |
| CN114719366A (en) * | 2022-03-17 | 2022-07-08 | 北京热博仕数据科技发展有限公司 | Low-temperature plasma heat recovery purifier |
| CN114719366B (en) * | 2022-03-17 | 2024-04-05 | 北京热博仕数据科技发展有限公司 | Low-temperature plasma heat recovery purifier |
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