CN209596900U - Boiler bypass flue direct-injection removes NOx and SO3System - Google Patents
Boiler bypass flue direct-injection removes NOx and SO3System Download PDFInfo
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- CN209596900U CN209596900U CN201821596844.7U CN201821596844U CN209596900U CN 209596900 U CN209596900 U CN 209596900U CN 201821596844 U CN201821596844 U CN 201821596844U CN 209596900 U CN209596900 U CN 209596900U
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Abstract
Boiler bypass flue direct-injection disclosed by the utility model removes NOXAnd SO3System, include the boiler bypass flue being sequentially communicated, pyrolysis chamber, taper header and injection apparatus including interconnected boiler bypass flue directly spray device and SCR denitration device, the boiler bypass flue directly spray device, further include spray gun；SCR denitration device includes economizer exit horizontal flue, SCR inlet uptake flue, SCR reactor and SCR reactor outlet flue.The boiler bypass flue direct-injection of the utility model removes NOXAnd SO3System has developed the bypass flue outlet device of flue gas injection containing ammonia and denitration inlet flue gas large scale mixing arrangement for boiler bypass flue direct-injection urea pyrolysis denitrating technique, is able to achieve NOXAnd SO3High efficiency, low cost removing, ABS is solved the problems, such as from source；So that catalyst inlet ammonia nitrogen molar ratio distributing homogeneity is reached the level of existing SCR denitration device, solves the key technology of boiler bypass flue direct-injection urea pyrolysis denitrating technique functionization.
Description
Technical field
The utility model belongs to flue gas pollutant Treatment process field, specifically, the utility model relates to boiler bypasses
Flue direct-injection removes NOXAnd SO3System.
Background technique
With NOXDischarge standard it is increasingly strict, coal-fired power plant, China is generally mounted with NH3Method SCR denitrating flue gas dress
It sets.SCR (Selective Catalytic Reduction) denitration technology refers to that within the scope of 280-420 DEG C, reducing agent is (such as
Liquefied ammonia, urea and ammonium hydroxide etc.) under the action of catalyst, " selective " with the NO in flue gasXReaction, generates free of contamination N2
And H2The NO of OXEmission-reduction technology.The preparation of SCR denitration reducing agent generallys use liquefied ammonia evaporation, urea pyrolysis/Hydrolyze method, ammonium hydroxide
Evaporation.Liquefied ammonia evaporation is urinated in SCR reducing agent preparation process using at most at home because initial cost and operating cost are lower
Plain pyrolysismethod takes second place.But liquefied ammonia is toxic chemical, and transit link security risk is big, road transport security risk is high, produces field
Stored amount is more than that 10 ton hours belong to major hazard source.With the increasingly raising that society requires local security situation, SCR is also
The power plant that former agent is changed to urea from liquefied ammonia is increasing.In process for producing ammonia from urea, boiler smoke bypasses direct-injection pyrolysismethod because not
It needs individually to build pyrolysis/hydrolysis device, equipment investment is few, operating cost is low is paid more and more attention.
After power plants minimum discharge is implemented, NOXDischarge≤50mg/m3, SCR denitration device generally installs 3-4 layers and urges
Agent, denitration efficiency are promoted to 90% or so, and the escaping of ammonia is significantly increased, air preheater ABS (Ammonium Bisulfate, sulfuric acid
Hydrogen ammonium, molecular formula (NH4)HSO4) blockage problem is more serious, or even jeopardizes unit safety operation.ABS problem refers to gaseous sulfuric acid
After hydrogen ammonium is condensed into liquid below dew point, deposit adhesion is in equipment surface, the problem of bringing to equipment operation.In order to from source
It is upper to solve the problems, such as ABS, it not only needs to control the escaping of ammonia, also needs the SO in removing flue gas3。
A kind of utility model patent " system for carrying out urea pyrolysis ammonia using boiler bypass " (publication number
CN205133164U), the scheme that urea pyrolysis is carried out using boiler bypass flue is proposed, but its boiler bypass is to improve denitration
Inlet flue gas temperature service, inlet flue gas temperature is relatively low, and exhaust gas volumn is larger and flue is shorter, and the time of urea pyrolysis reaction is extremely short, practicability
It is poor.Utility application " the wide load urea direct-injection pyrolysis smoke denitrating system of boiler " (publication number
CN106582234A), by setting high/low temperature gas bypass and temperature-adjusting baffle, the load scope of application is improved.But existing skill
In art, lack the special bypass flue outlet device of flue gas injection containing ammonia and denitration inlet flue gas large scale mixing arrangement, nothing
Method makes the ammonia nitrogen molar ratio distributing homogeneity of SCR catalyst inlet reach the level of existing SCR denitration device, therefore cannot
Effectively control the escaping of ammonia, does not have removing SO yet3Function.Current published boiler bypass flue direct-injection denitrating system and often
The SCR denitration device of rule is compared, they are likely to keep air preheater ABS blockage problem more serious.Therefore, it needs to be directed at present
Boiler bypass flue direct-injection urea pyrolysis denitrating technique, the boiler bypass flue that the practical operating of the process can be achieved in research and development are straight
Spray removing NOXAnd SO3System, realize NOXAnd SO3Efficient removal, from source solve ABS blockage problem.
Utility model content
Technical problem to be solved by the utility model is: being directed to boiler bypass flue direct-injection urea pyrolysis denitrating technique, grind
Send out the boiler bypass flue direct-injection removing NO matchedXAnd SO3System and denitration inlet flue gas large scale mixing arrangement, make to urge
Agent entrance ammonia nitrogen molar ratio distributing homogeneity reaches the level of existing SCR denitration device, controls amount of ammonia slip and removes flue gas
In SO3, realize NOXAnd SO3High efficiency, low cost removing, from source solve ABS blockage problem.
To achieve the goals above, the technical solution that the utility model is taken are as follows:
Boiler bypass flue direct-injection removes NOXAnd SO3System, including pot be interconnected boiler bypass flue direct-injection dress
It sets and SCR denitration device, the boiler bypass flue directly spray device includes boiler bypass flue, pyrolysis chamber, the cone being sequentially communicated
Shape header and injection apparatus further include spray gun；SCR denitration device includes economizer exit horizontal flue, SCR inlet rising cigarette
Road, SCR reactor and SCR reactor outlet flue.
It on the basis of the above embodiments, further include bypass flue baffle door, the bypass flue baffle door is set to institute
It states inside boiler bypass flue entrance horizontal segment.
It on the basis of the above embodiments, further include bypass flue water conservancy diversion board group, the bypass flue water conservancy diversion board group setting
In bypass flue between the boiler bypass flue and pyrolysis chamber.
It on the basis of the above embodiments, further include taper header entrance guiding board group, the taper header entrance guiding
Board group is set in the upstream entrance flue of the taper header.
On the basis of the above embodiments, the upper end Yu the pyrolysis chamber of the taper header are the same as wide, the taper header
Lower end and the economizer exit horizontal flue with wide.
On the basis of the above embodiments, the injection apparatus includes long and short two layers of branch pipe, and the pipe diameter of drawing money on credit is greater than
The short branch pipe diameter, the branch pipe latter end are beveling groove.
On the basis of the above embodiments, the spray gun is set to the inner top side of the boiler bypass flue vertical section.
On the basis of the above embodiments, the SCR reactor be set to the SCR denitration device entrance uptake flue and
Between SCR reactor outlet flue；The boiler bypass flue directly spray device is set to boiler reversal chamber and economizer exit water
Bypass between flat flue, the injection apparatus end are placed in the economizer exit horizontal flue.
On the basis of the above embodiments, the SCR denitration device further includes being set to the SCR denitration device of the boiler
Flue gas large scale mixer in entrance uptake flue is provided with multilayer flue gas separately in the flue gas large scale mixer
Channel, the first smoke inlet positioned at side are connected with odd-level exhaust gases passes, the second smoke inlet and idol positioned at the other side
Several layers of exhaust gases passes are connected.
On the basis of the above embodiments, the SCR denitration device entrance uptake flue inlet and outlet are respectively arranged on SCR
It rises flue entrance water conservancy diversion board group and SCR uptake flue exports deflector group, the flue gas large scale mixer downstream is provided with mixed
Clutch outlet rectification board group, the SCR reactor inlet are provided with SCR reactor inlet water conservancy diversion board group and SCR reactor inlet
Flow straightening grid.
Advantageous effects acquired by the technical solution of the utility model are:
The experimental design and verifying discovery of applicant early period, the pyrolysis denitration of boiler bypass flue urea direct-injection is wanted can be practical
Change, it is ensured that urea liquid can sufficiently be pyrolyzed the only first step；It is more importantly de- for boiler bypass flue direct-injection urea pyrolysis
Nitre technique is researched and developed the special bypass flue outlet device of flue gas injection containing ammonia and denitration inlet flue gas large scale mixing arrangement, is made
Catalyst inlet ammonia nitrogen molar ratio distributing homogeneity reaches the level of existing SCR denitration device, to control the escaping of ammonia.
The boiler bypass flue direct-injection of the utility model removes NOXAnd SO3System has developed straight for boiler bypass flue
The bypass flue outlet device of flue gas injection containing ammonia and denitration inlet flue gas large scale mixing arrangement of urea pyrolysis denitrating technique are sprayed,
It is able to achieve NOXAnd SO3High efficiency, low cost removing, ABS is solved the problems, such as from source；It is distributed catalyst inlet ammonia nitrogen molar ratio
Uniformity reaches the level of existing SCR denitration device, and it is practical to solve boiler bypass flue direct-injection urea pyrolysis denitrating technique
Key technology.
Detailed description of the invention
Fig. 1 is that boiler bypass flue direct-injection removes NO in embodimentXAnd SO3System and its a left side with boiler connection relationship
View；
Fig. 2 is that boiler bypass flue direct-injection removes NO in embodimentXAnd SO3System and its bow with boiler connection relationship
View；
Fig. 3 is that boiler bypass flue direct-injection removes NO in embodimentXAnd SO3System and its with after boiler connection relationship
View；
The label in accompanying drawing is:
1- boiler reversal chamber；2- boiler vertical well gas flue；3- economizer exit horizontal flue；On 4-SCR denitrification apparatus entrance
Rise flue；5-SCR reactor；6-SCR catalyst layer；7- boiler bypass flue；8- spray gun；The pyrolysis chamber 9-；10- bypass flue goes out
Prostomum shape header；11- bypass flue exports the device of flue gas injection containing ammonia；12- bypass flue baffle door；13- bypass flue water conservancy diversion
Board group；14- taper header entrance guiding board group；15- flue gas large scale mixer；16-SCR uptake flue entrance guiding board group；
17-SCR uptake flue exports deflector group；18-SCR reactor inlet water conservancy diversion board group；19- mixer outlet rectifies board group；20-
SCR reactor inlet flow straightening grid；21-SCR reactor outlet flue.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing, the description of this part be only it is exemplary and explanatory,
There should not be any restriction effect to the protection scope of the utility model.In addition, those skilled in the art's retouching according to this document
It states, the corresponding combination can be carried out to the feature in embodiment in this document and in different embodiments.
Embodiment
Shown in reference view 1, the boiler bypass flue direct-injection of the present embodiment removes NOXAnd SO3System, including boiler
Bypass flue directly spray device and SCR denitration device, boiler bypass flue directly spray device include the boiler bypass flue being sequentially communicated
7, pyrolysis chamber 9, taper header 10 and injection apparatus 11 further include the spray for being set to 7 vertical section inner top side of boiler bypass flue
Rifle 8；SCR denitration device includes the economizer exit horizontal flue 3 being sequentially communicated, SCR denitration device entrance uptake flue 4, SCR
Reactor 5 and SCR reactor outlet flue 21.Spray gun 8 is for spraying reducing agent/adsorbent；It is in the present embodiment specially to urinate
Element and SO3Scavenger mixed liquor, SO3Scavenger is base adsorbent soluble easily in water, it is preferred to use Na2CO3Solution.Spray gun 8 sprays
Urea out is pyrolyzed in pyrolysis chamber 9 generates NH3Gas, SO3Scavenger is dried to large specific surface area, air-flow pyrolysis chamber 9 is atomization
The good submicron order fine grained of followability.
With continued reference to schematic diagram 1, wherein 7 horizontal segment of boiler bypass flue is internally provided with bypass flue baffle door 12,
12 side of baffle door is fixedly connected with 7 inner wall of boiler bypass flue, the adjusting for exhaust gas volumn.Boiler bypass flue 7 and pyrolysis
Bypass flue water conservancy diversion board group 13 is provided in the flue of 9 junction of room, and between bypass flue baffle door 12 and spray gun 8.
By be arranged flue gas that bypass flue water conservancy diversion board group 13 can allow in bypass flue from horizontal boiler bypass flue 7 more uniformly,
It smoothly enters in pyrolysis chamber 9.Pipeline at 10 upstream entrance of bypass flue exit cone header is internally provided with taper header
The end of entrance guiding board group 14, water conservancy diversion board group 14 is fixedly connected with inner wall of the pipe.Referring to schematic diagram 3, because of taper header 10
Lower end is wider than upper section, is rendered as similar up-narrow and down-wide trapezium structure, and the flue gas of 10 upstream of taper header passes through water conservancy diversion board group 14
It can be more uniformly and inside the entrance taper header 10 of dispersion.
Bypass flue outlet setting taper header 10, can make in every group of branch pipe of the device of flue gas injection containing ammonia 11 throughput more
It is uniform.Taper header 10 is set to the downstream of pyrolysis chamber 9, and 10 lower end of taper header and 11 phase of the device of flue gas injection containing ammonia
Even.Referring to schematic diagram 3, the upper end and pyrolysis chamber 9 of taper header 10 are the same as wide, the lower end of taper header 10 and economizer exit level
Flue 3 is the same as wide.The width of 10 upper end of taper header and lower section is respectively set, the flue gas after coming out from pyrolysis chamber 9 can be made more equal
It even dispersion and is ejected into economizer exit horizontal flue 3, and then improves the mixing uniformity with flue gas in horizontal flue 3.
Referring to shown in schematic diagram 1, the SCR denitration device in the present embodiment includes the horizontal cigarette of economizer exit being sequentially communicated
Road 3, SCR denitration device entrance uptake flue 4 and SCR reactor outlet flue 21.Wherein SCR reactor 5 is set to SCR denitration
Between device portal uptake flue and SCR reactor outlet flue, the inside of SCR reactor 5 is arranged in SCR catalyst layer 6.This
Boiler bypass flue direct-injection removes NO in embodimentXAnd SO3System belong to a part of boiler, connect with the upstream structure of boiler
It is logical；Boiler reversal chamber 1 and boiler vertical well gas flue 2 are equipped in the upstream structure of boiler.Wherein boiler bypass flue directly spray device from
The side of boiler reversal chamber 1 is drawn, and the economizer exit horizontal flue 3 in SCR denitration device is connected to boiler vertical well gas flue 2.
Boiler bypass flue directly spray device is arranged on the bypass flue between boiler reversal chamber 1 and economizer exit horizontal flue 3, packet
Include the boiler bypass flue 7 being sequentially communicated, pyrolysis chamber 9, bypass flue exit cone header 10 and bypass flue outlet cigarette containing ammonia
Gas spraying device 11；11 end of injection apparatus is placed in economizer exit horizontal flue 3.Boiler bypass flue 7 is horizontal flue,
One end is connected to the side wall of boiler reversal chamber 1, and the other end is connected to vertical pyrolysis chamber 9.It is perpendicular in boiler during boiler work
Under the action of 2 differential pressure of well flue, the high-temperature flue gas of boiler reversal chamber 1 is introduced into bypass flue 7.
Referring to shown in schematic diagram 1 and 3,11 end of injection apparatus is placed in economizer exit horizontal flue 3, injection apparatus 11
Including long and short two layers of branch pipe, two layers of branch pipe of length is all made of seamless steel pipe production, and latter end is using beveling groove design.Protrude into province
The injection branch pipe windward side of coal device export level flue 3 is equipped with abrasionproof angle steel (being not marked in figure).Due to boiler vertical well gas flue (2)
Differential pressure it is limited, design the resistance in Shi Yingrang bypass flue and answer as small as possible, therefore the flue gas injection containing ammonia in the present embodiment
Round seamless steel pipe is used on the branch pipe of device (11), and flow control valve is not provided on branch pipe.The diameter and length of branch pipe lead to
Method for numerical simulation is crossed according to the Flow Field Distribution optimization design in economizer exit horizontal flue (3), pipe diameter of drawing money on credit is thicker, short
Branch pipe diameter is thinner.
Referring to schematic diagram 1, it is big to be provided with flue gas in the present embodiment, in the uptake flue of 5 upstream entrance of SCR denitration device
Scale mixer 15.Multilayer exhaust gases passes separately are provided in flue gas large scale mixer 15, the first cigarette positioned at side
Gas entrance is connected with odd-level exhaust gases passes, and the second smoke inlet positioned at the other side is connected with even level exhaust gases passes.Due to
Every group of branch pipe flow of the device of flue gas injection containing ammonia 11 is non-adjustable, it is necessary to cigarette be arranged in SCR denitration device entrance uptake flue 4
Gas large scale mixer 15, makes NH3Gas, SO3Scavenger is sufficiently mixed with flue gas.
The downstream line of economizer exit horizontal flue 3 be SCR denitration device entrance uptake flue 4 entrance, the two it
Between be equipped with bending pipeline (being not marked in figure).SCR uptake flue entrance guiding board group 16 is arranged inside the bending pipeline, SCR
The flue gas of gas approach width direction (goes out including the flue gas containing ammonia of the ejection of injection apparatus 11 in bypass flue and from economizer
The flue gas of mouth horizontal flue 3) flue gas large scale mixer 15 is crossed into after water conservancy diversion board group 16, and it is mixed in flue gas large scale
The outlet of clutch 15 and downstream flue mutually blend.15 exit design of mixer has (to be not marked in figure) around fluid element, to reinforce surprise
Double-layer flue gas is in the outlet of mixer 15 and the mutual blending in downstream.
Referring to schematic diagram 1, the downstream of flue gas large scale mixer 15 is the outlet of SCR denitration device entrance uptake flue 4,
Therebetween it is equipped with bending pipeline (being not marked in figure).It is respectively set in 4 import and export of entrance uptake flue of SCR denitration device 5
Water conservancy diversion board group 16 and 17 is arranged rectification board group 19 in 15 downstream of flue gas large scale mixer, water conservancy diversion is arranged in SCR reactor inlet
Board group 18 and flow straightening grid 20 can make the even flow field in SCR denitration device 5, the flue gas incidence angle of 6 entrance of SCR catalyst layer
≤ 10 °, and then the efficiency of SCR denitration is promoted, prevent catalyst abrasion.
The boiler bypass flue direct-injection of the present embodiment removes NOXAnd SO3System, by special bypass flue outlet contain ammonia
Flue gas injection device is set on boiler bypass, and flue gas large scale mixing arrangement is set in SCR inlet flue；Make catalyst
Entrance ammonia nitrogen molar ratio distributing homogeneity reaches the level of existing SCR denitration device, solves the pyrolysis of boiler bypass flue direct-injection
The key technology of denitrating technique functionization；And in the urea liquid that the spray gun of boiler bypass flue vertical section inner top side sprays
Base adsorbent soluble easily in water is added, realizes NOXAnd SO3High efficiency, low cost removing, ABS is solved the problems, such as from source.
NO is removed using the boiler bypass flue direct-injection in the present embodimentXAnd SO3System, to the boiler bypass of certain power plant
Design is optimized in flue and SCR inlet flow field.5 uniformly distributed urea SO in the width direction are set at the top of pyrolysis chamber3It is de-
Except agent mixed solution spray gun, gas bypass exports the device of flue gas injection containing ammonia setting two rows dispensing branch, totally 30 (2 ×
15).Under at full capacity, high-temperature flue gas by-pass damper door aperture is 17 °, system resistance 364Pa, exports dispensing branch upstream NH3It is dense
Degree distribution relative standard deviation is 4.9%, the exhaust gas volumn relative standard deviation of upper and lower two groups of dispensing branch is respectively 1.5%,
2.0%.Under 50% load, high-temperature flue gas by-pass damper door standard-sized sheet, system resistance 107Pa exports dispensing branch upstream NH3Concentration
Being distributed relative standard deviation is 4.3%, the exhaust gas volumn relative standard deviation of upper and lower two groups of dispensing branch is respectively 1.7%,
2.0%.The testing result of boiler relevant parameter is as shown in table 1 below after optimization design.
The testing result of boiler relevant parameter after 1 boiler bypass flue optimization design of table
Using numerical computation method, to SCR catalyst entrance velocity, NH3Concentration, flue gas incidence angle, system pressure drop, temperature
Etc. parameters analyzed, concrete outcome is as shown in table 2 below.Under at full capacity, the VELOCITY DISTRIBUTION in the first floor catalyst upstream section 500mm
Relative standard deviation is 7.6%, NH3It is 3.2% that/NOx molar ratio, which is distributed relative standard deviation, and maximum incident angle is less than 10 °, most
Big temperature absolute deviation is less than ± 2 DEG C, and the flue resistance (being free of catalyst layer) of economizer exit to air preheater import is
439Pa。
2 SCR denitration device Optimum Design Results of table
Remarks: BMCR (Boiler maximum continuous rating), the Chinese meaning are boiler maximum continuous steaming
Hair amount, the mainly maximum output in the case where meeting steam parameter, burner hearth security situation.
From every technical parameter after boiler bypass flue optimization design in upper table 1 and upper table 2 it is found that the utility model
Boiler bypass flue direct-injection removes NOXAnd SO3System is fully able to meet the properties of conventional scr denitrification apparatus flow Field Design
Index request has engineering practicability.
Although describing the utility model by reference to various embodiments above, but it is to be understood that do not departing from this reality
In the case where with novel range, many changes and modifications can be carried out.Therefore, being intended to foregoing detailed description is considered as example
The property shown and not restrictive, and it is to be understood that be intended to limit this practical new for following following claims (including all equivalents)
The spirit and scope of type.The above embodiment is interpreted as being merely to illustrate the utility model rather than limit originally practical new
The protection scope of type.After the content for the record for having read the utility model, technical staff can make the utility model each
Kind change or modification, these equivalence changes and modification equally fall into the utility model claims limited range.
Claims (10)
1. boiler bypass flue direct-injection removes NOXAnd SO3System, which is characterized in that including interconnected boiler bypass flue
Directly spray device and SCR denitration device, the boiler bypass flue directly spray device include the boiler bypass flue being sequentially communicated, pyrolysis
Room, taper header and injection apparatus, further include spray gun；SCR denitration device includes economizer exit horizontal flue, on SCR inlet
Rise flue, SCR reactor and SCR reactor outlet flue.
2. boiler bypass flue direct-injection according to claim 1 removes NOXAnd SO3System, which is characterized in that further include
Bypass flue baffle door, the bypass flue baffle door are set to inside the boiler bypass flue entrance horizontal segment.
3. boiler bypass flue direct-injection according to claim 1 removes NOXAnd SO3System, which is characterized in that further include
Bypass flue water conservancy diversion board group, the bypass flue water conservancy diversion board group are set to the bypass between the boiler bypass flue and pyrolysis chamber
Flue turning.
4. boiler bypass flue direct-injection according to claim 1 removes NOXAnd SO3System, which is characterized in that further include
Taper header entrance guiding board group, the taper header entrance guiding board group are set to the upstream entrance flue of the taper header
In.
5. boiler bypass flue direct-injection according to claim 1 removes NOXAnd SO3System, which is characterized in that the cone
With width, the lower end of the taper header and the economizer exit horizontal flue are same wide for the upper end of shape header and the pyrolysis chamber.
6. boiler bypass flue direct-injection according to claim 1 removes NOXAnd SO3System, which is characterized in that the spray
Injection device includes long branch pipe and short branch pipe, and the pipe diameter of drawing money on credit is greater than the short branch pipe diameter, the long branch pipe and short branch pipe
Latter end be beveling groove.
7. boiler bypass flue direct-injection according to claim 1 removes NOXAnd SO3System, which is characterized in that the spray
Rifle is set to the inner top side of the boiler bypass flue vertical section.
8. boiler bypass flue direct-injection according to claim 1-7 removes NOXAnd SO3System, feature exists
In the SCR reactor is set between the SCR denitration device entrance uptake flue and SCR reactor outlet flue；It is described
Boiler bypass flue directly spray device is set to the bypass between boiler reversal chamber and economizer exit horizontal flue, the injection dress
Set terminal is placed in the economizer exit horizontal flue.
9. boiler bypass flue direct-injection according to claim 8 removes NOXAnd SO3System, which is characterized in that the SCR
Denitrification apparatus further includes the flue gas large scale mixer being set in the SCR denitration device entrance uptake flue of the boiler, institute
The multilayer exhaust gases passes being provided in flue gas large scale mixer separately are stated, the first smoke inlet and odd-level positioned at side
Exhaust gases passes are connected, and the second smoke inlet positioned at the other side is connected with even level exhaust gases passes.
10. boiler bypass flue direct-injection according to claim 9 removes NOXAnd SO3System, which is characterized in that it is described
SCR denitration device entrance uptake flue inlet and outlet are respectively arranged with SCR uptake flue entrance guiding board group and SCR uptake flue goes out
Mouth water conservancy diversion board group, the flue gas large scale mixer downstream are provided with mixer outlet rectification board group, the SCR reactor inlet
It is provided with SCR reactor inlet water conservancy diversion board group and SCR reactor inlet flow straightening grid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821596844.7U CN209596900U (en) | 2018-09-29 | 2018-09-29 | Boiler bypass flue direct-injection removes NOx and SO3System |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821596844.7U CN209596900U (en) | 2018-09-29 | 2018-09-29 | Boiler bypass flue direct-injection removes NOx and SO3System |
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| CN209596900U true CN209596900U (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012104A (en) * | 2018-09-29 | 2018-12-18 | 苏州西热节能环保技术有限公司 | Boiler bypass flue direct-injection removes NOxAnd SO3System |
-
2018
- 2018-09-29 CN CN201821596844.7U patent/CN209596900U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012104A (en) * | 2018-09-29 | 2018-12-18 | 苏州西热节能环保技术有限公司 | Boiler bypass flue direct-injection removes NOxAnd SO3System |
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