CN107617332A - Solves the uneven vertical gas pass flow-disturbing system and method in SCR inlet temperature flow field - Google Patents
Solves the uneven vertical gas pass flow-disturbing system and method in SCR inlet temperature flow field Download PDFInfo
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- CN107617332A CN107617332A CN201710821866.2A CN201710821866A CN107617332A CN 107617332 A CN107617332 A CN 107617332A CN 201710821866 A CN201710821866 A CN 201710821866A CN 107617332 A CN107617332 A CN 107617332A
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- gas pass
- vertical gas
- scr inlet
- flue
- flow
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 78
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000003546 flue gas Substances 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000013517 stratification Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229940095054 ammoniac Drugs 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical group [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
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- Chimneys And Flues (AREA)
Abstract
Solves the uneven vertical gas pass flow-disturbing system and method in SCR inlet temperature flow field the present invention relates to a kind of, the system includes：The turbulent baffle being hinged on the walling of flue of SCR inlet vertical gas pass, the turbulent baffle jointed crank connecting rod mechanism, the anglec of rotation of turbulent baffle is controlled by the crank connecting, the turbulent baffle rotates between 0 ° to 90 °, the flow-disturbing flow-stopping plate is under 0 ° of state, the walling of flue that the turbulent baffle is bonded the SCR inlet vertical gas pass is set, and the facing walling of flue of the SCR inlet vertical gas pass is provided with the temperature sensor for being used for obtaining the flue gas passed through in flue.
Description
Technical field
Solves the vertical gas pass turbulent baffle that SCR inlet temperature flow field is uneven after gas bypass is transformed the present invention relates to a kind of
Technology.
Background technology
Thermal power generation unit uses SCR denitration technology at present, and nucleus equipment is vanadium Ti-base catalyst, the work in catalyst
Property composition is V2O5.Catalyst typically allows running temperature section at 300~420 DEG C, when flue-gas temperature is less than 300 DEG C, takes off
The ammonia of nitre entrance can generate sulfate of ammoniac and hydrogen sulfate ammonia (commonly referred to as ABS) with the SO3 reactions in flue gas, in certain temperature region
In the range of, ABS is that liquid easily penetrates into denitrating catalyst capillary micropore, hinders NH3 and NO in flue gas to be diffused into catalyst activity
Grain surface carries out reduction reaction, causes catalyst activity to reduce or fail, causes catalyst poisoning, leads to for this equipment for denitrifying flue gas
Standing fixed minimum continuous spray ammonia temperature MOT, the temperature are usually set to 300 DEG C or so.When SCR inlet flue-gas temperature is less than 300
DEG C, it is necessary to stop spray ammonia (or spraying ammonia in short term).
Because the boiler gone into operation before 2008 does not design denitrification apparatus substantially, thus most boilers there is
The problem of economizer exit cigarette temperature is less than 300 DEG C during 50%-70% loads；In addition by recent years, fired power generating unit is averagely using small
When the influence that declines, fired power generating unit rate of load condensate reduces year by year, in indivedual periods power scheduling require that unit maintains 50% load
Operation, former boiler of the design with denitrification apparatus is set the problem of SCR inlet flue-gas temperature is low during underload also occur；
National Energy Board 2016 continuously holds a meeting and sent the documents at the beginning of the year, proposes clearly to carrying out thermoelectricity flexibility transformation
Ask, China implements the flexibility transformation of 2.2 hundred million kilowatts of coal units during plan " 13 ", unit is possessed depth peak regulation
Power, and further increase load -response-speed, part of generating units possesses rapid starting/stopping peak modulation capacity.Lifting flexibility transformation is expected will
Thermoelectricity unit is set to increase the peak modulation capacity of 20% rated capacity, minimum technology, which is contributed, reaches 40%~50% rated capacity；Pure condensate
Unit increases the peak modulation capacity of 15%~20% rated capacity, and minimum technology, which is contributed, reaches 30%~35% rated capacity.
Under the forcing of above-mentioned situation, power plant takes boiler to meet that unit is less than 50% load and following operation
Tail flue gas bypass flue renovation technique, the method that the high-temperature flue gas by extracting anterior flue mixes with low-temperature flue gas, improve
SCR inlet flue-gas temperature, meet that denitrification apparatus puts into temperature requirements during underload.
In view of the defects of above-mentioned, the design people is actively subject to research and innovation, to design a kind of solution SCR inlet temperature stream
The uneven vertical gas pass flow-disturbing system in field, make it with more the value in industry.
The content of the invention
To solve above-mentioned technology, safety problem, it is an object of the invention to provide a kind of laminar condition for being sufficiently destroyed flue gas,
Flue gas is sufficiently mixed, flue gas bulk temperature is reached unanimity, the solution SCR for thoroughly eliminating temperature flow field deviation enters
The uneven vertical gas pass flow-disturbing system and method in mouth temperature flow field.
The present invention solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, including：SCR inlet is hinged on to hang down
Turbulent baffle on the walling of flue of straight flue, the turbulent baffle jointed crank connecting rod mechanism, passes through the crank connecting
The anglec of rotation of turbulent baffle is controlled, the turbulent baffle rotates between 0 ° to 90 °, and the flow-disturbing flow-stopping plate is in 0 ° of state
Under, the walling of flue that the turbulent baffle is bonded the SCR inlet vertical gas pass is set, and the SCR inlet vertical gas pass is facing
Walling of flue be provided with the temperature sensor for being used for obtaining the flue gas passed through in flue.
Further, the length direction using the length direction of SCR inlet vertical gas pass as the turbulent baffle, the flow-disturbing
The length of baffle plate is not less than the 1/2 of SCR inlet vertical gas pass, and the length of the turbulent baffle is not more than the vertical cigarette of SCR inlet
The 2/3 of road.
Further, the bottom of the turbulent baffle is provided with some ash discharges, and the center spacing of two neighboring ash discharging hole is 1.0
To 1.5mm.
Further, described ash discharging hole is rectangle, circle or diamond structure.
Further, one end of the crank connecting is connected with the turbulent baffle, and the crank connects machine
The other end of structure is connected with reductor, and the reductor is driven by motor.
Further, when the angle between the walling of flue of SCR inlet vertical gas pass of the turbulent baffle is in more than 0 °,
The opening upwards of the turbulent baffle.
Further, the push rod of the crank connecting is connected with the turbulent baffle, and the end of the push rod is provided with
Perforation, the reinforcing plate are provided with two installed parts, and each installed part is provided with pin shaft hole, and the push rod is arranged on two installed parts
Between, bearing pin is rotatably connected to one through described perforation, pin shaft hole, the push rod by bearing pin and the turbulent baffle
Rise.
Further, the position that the turbulent baffle is connected with the push rod is provided with reinforcing plate, and the installed part is set
In the reinforcing plate.
Further, the push rod is cylindrical-shaped structure, and the walling of flue of the SCR inlet vertical gas pass is provided with pipe,
The push rod passes through the pipe.
The present invention solves the uneven vertical gas pass flow-disturbing method in SCR inlet temperature flow field, including above-mentioned solution SCR inlet
The uneven vertical gas pass flow-disturbing system in temperature flow field, methods described specifically include：
Two temperature sensors detect that the out of stock mouth entrance vertical gas pass both sides cigarette temperature difference more than when reaching 10 DEG C, passes through drive
Dynamic motor and reductor drive push rod, and turbulent baffle is headed into SCR inlet vertical gas pass, makes turbulent baffle and vertical gas pass shape
Angled α, α are more than 0 °, and the length headed into according to vertical flue both sides gas temperature windage value adjustment push rod in stove, and flue gas is by disturbing
When flowing baffle plate, half side mixed flue gas flow direction is forced to change before flue, fully disturbs and mixes with the flue gas of rear side, laminar flow boundary
Area is entirely destroyed, and smoke-filling movement reaches unanimity, and eliminates flue-gas temperature deviation.
By such scheme, the present invention, which solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, at least to be had
Advantages below：
Turbulent baffle can effectively change flue gas flow direction on front side of SCR inlet flue, flue gas is fully disturbed and is mixed, thoroughly disappear
Except the flue-gas temperature deviation brought due to laminar flow boundary layer.
Push rod can be driven by motor and reductor, can flexibly be adjusted according to the size of the vertical flue both sides cigarette temperature difference
Whole turbulent baffle angle, reach the purpose for eliminating gas temperature windage.
When gas bypass is out of service and during smokeless temperature deviation, push rod is 9. withdrawn by motor and reductor,
Turbulent baffle is stowed away, and one is formed with former flue.
Ash discharging hole is designed in turbulent baffle bottom, the problem of effectively prevent dust stratification in baffle plate and flue wall angle.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is that back-end ductwork bypass transformation of the present invention and flue gas mix, flow pattern schematic figure；
Fig. 2 is the schematic diagram that the present invention solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field；
Fig. 3 is that the present invention solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field and flue gas mixing, flowing shape
Body is illustrated；
Fig. 4 is that the part for the embodiment 1 that the present invention solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field is shown
It is intended to；
Fig. 5 is that the part for the embodiment 2 that the present invention solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field is shown
It is intended to；
Fig. 6 is the structure for the turbulent baffle that the present invention solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field
Schematic diagram；
In figure：Flue gas back-end ductwork 1；Out of stock body flue 2；Gas bypass 3；Gas bypass controllable register 4；Gas bypass
Turn off baffle plate 5；Economizer flue collector adjustable plate 6；Ammonia injector 7；SCR inlet vertical gas pass 8；Decelerator 9；Turbulent baffle
10；Push rod 11.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Embodiment 1
As shown in Figures 1 to 4, the present embodiment solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, including：
The turbulent baffle being hinged on the walling of flue of SCR inlet vertical gas pass, the turbulent baffle jointed crank connecting rod mechanism, passes through institute
The anglec of rotation of crank connecting control turbulent baffle is stated, the turbulent baffle rotates between 0 ° to 90 °, the flow-disturbing gear
Flowing plate is under 0 ° of state, and the walling of flue that the turbulent baffle is bonded the SCR inlet vertical gas pass is set, and the SCR inlet hangs down
The facing walling of flue of straight flue is provided with the temperature sensor for being used for obtaining the flue gas passed through in flue.
In the present embodiment, the angle between the walling of flue of SCR inlet vertical gas pass of the turbulent baffle is in be more than 0 °
When, the opening upwards of the turbulent baffle.Length side using the length direction of SCR inlet vertical gas pass as the turbulent baffle
To the length of the turbulent baffle is not less than the 1/2 of SCR inlet vertical gas pass, and the length of the turbulent baffle is not more than SCR
The 2/3 of entrance vertical gas pass.
The push rod of the crank connecting is connected with the turbulent baffle, and the end of the push rod is provided with perforation, described
Reinforcing plate is provided with two installed parts, and each installed part is provided with pin shaft hole, and the push rod is arranged between two installed parts, bearing pin
Through described perforation, pin shaft hole, together with the push rod is rotatably connected by bearing pin with the turbulent baffle.
Further, one end of the crank connecting is connected with the turbulent baffle, and the crank connects machine
The other end of structure is connected with reductor, and the reductor is driven by motor.
The present embodiment solves the operation principle of the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field：By flue gas
After road 3 is put into, during the front and rear sides cigarette temperature difference of SCR inlet vertical gas pass 8 larger (reaching 10 DEG C), to the safety of denitration agent
Operation forms certain threat, now drives push rod 11 by motor and reductor 9, turbulent baffle 10 is headed into SCR and entered
In mouth vertical gas pass 8, turbulent baffle 10 is set to form certain angle [alpha], 0 ° of α ＞ with vertical gas pass.
After gas bypass 3 is put into, bypass flue gas and the top flue gas forming layer stream of flue collector 1, and along the vertical cigarette of SCR inlet
The front side flow of road 8, and the flue gas of the bottom of flue collector 1 flows after turning to along the rear side of SCR inlet vertical gas pass 8.
When flue gas passes through turbulent baffle 10, half side mixed flue gas flow direction is forced to change before flue, is filled with the flue gas of rear side
Divide and disturb and mix, laminar flow watershed area is entirely destroyed, and smoke-filling movement reaches unanimity, and eliminates flue-gas temperature deviation.
Embodiment 2
As shown in FIG. 5 and 6, the present embodiment solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, is implementing
On the basis of example 1, the bottom of the turbulent baffle is provided with some ash discharges, the center spacing of two neighboring ash discharging hole for 1.0 to
1.5mm.To prevent dust stratification between turbulent baffle and flue wall, wall can not be adjacent to when withdrawing by influenceing turbulent baffle, in baffle plate
The separated some baffle plate ash discharging holes in top.When having dust stratification in angle between baffle plate and flue, dust stratification can be discharged by ash discharging hole.
In the present embodiment, described ash discharging hole is rectangle, circle or diamond structure.
In the various embodiments described above, the position that the turbulent baffle is connected with the push rod is provided with reinforcing plate, the installation
Part is arranged in the reinforcing plate.
In the various embodiments described above, the push rod is cylindrical-shaped structure, and the walling of flue of the SCR inlet vertical gas pass is provided with
Pipe, the push rod pass through the pipe.
Embodiment 3
The present embodiment solves the uneven vertical gas pass flow-disturbing method in SCR inlet temperature flow field, including above-described embodiment 1 or 2
Described solves the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, and methods described specifically includes：
Two temperature sensors detect that the out of stock mouth entrance vertical gas pass both sides cigarette temperature difference more than when reaching 10 DEG C, passes through drive
Dynamic motor and reductor drive push rod, and turbulent baffle is headed into SCR inlet vertical gas pass, makes turbulent baffle and vertical gas pass shape
Angled α, α are more than 0 °, and the length headed into according to vertical flue both sides gas temperature windage value adjustment push rod in stove, and flue gas is by disturbing
When flowing baffle plate, half side mixed flue gas flow direction is forced to change before flue, fully disturbs and mixes with the flue gas of rear side, laminar flow boundary
Area is entirely destroyed, and smoke-filling movement reaches unanimity, and eliminates flue-gas temperature deviation.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, it is characterised in that including：It is hinged on SCR
Turbulent baffle on the walling of flue of entrance vertical gas pass, the turbulent baffle jointed crank connecting rod mechanism, is connected by the crank
Connection mechanism controls the anglec of rotation of turbulent baffle, and the turbulent baffle rotates between 0 ° to 90 °, and the flow-disturbing flow-stopping plate is at 0 °
Under state, the walling of flue that the turbulent baffle is bonded the SCR inlet vertical gas pass is set, the SCR inlet vertical gas pass phase
The walling of flue faced is provided with the temperature sensor for being used for obtaining the flue gas passed through in flue.
2. according to claim 1 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
It is not small in, the length direction using the length direction of SCR inlet vertical gas pass as the turbulent baffle, the length of the turbulent baffle
In the 1/2 of SCR inlet vertical gas pass, and the length of the turbulent baffle is not more than the 2/3 of SCR inlet vertical gas pass.
3. according to claim 1 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In the bottom of the turbulent baffle is provided with some ash discharges, and the center spacing of two neighboring ash discharging hole is 1.0 to 1.5mm.
4. according to claim 41 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In described ash discharging hole is rectangle, circle or diamond structure.
5. according to claim 1 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In one end of the crank connecting is connected with the turbulent baffle, and the other end of the crank connecting is with subtracting
Fast machine connection, the reductor are driven by motor.
6. according to claim 1 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In, when the angle between the walling of flue of SCR inlet vertical gas pass of the turbulent baffle is in more than 0 °, the turbulent baffle
Opening upwards.
7. according to claim 1 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In the push rod of the crank connecting is connected with the turbulent baffle, and the end of the push rod is provided with perforation, the reinforcing plate
Two installed parts are provided with, each installed part is provided with pin shaft hole, and the push rod is arranged between two installed parts, and bearing pin passes through institute
The perforation stated, pin shaft hole, together with the push rod is rotatably connected by bearing pin with the turbulent baffle.
8. according to claim 7 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In the position that the turbulent baffle is connected with the push rod is provided with reinforcing plate, and the installed part is arranged in the reinforcing plate.
9. according to claim 1 solve the uneven vertical gas pass flow-disturbing system in SCR inlet temperature flow field, its feature exists
In the push rod is cylindrical-shaped structure, and the walling of flue of the SCR inlet vertical gas pass is provided with pipe, and the push rod passes through institute
State pipe.
10. a kind of solve the uneven vertical gas pass flow-disturbing method in SCR inlet temperature flow field, it is characterised in that including claim 1
To 9 any described vertical gas pass flow-disturbing systems for solving SCR inlet temperature flow field inequality, methods described specifically includes：
Two temperature sensors detect that the out of stock mouth entrance vertical gas pass both sides cigarette temperature difference more than when reaching 10 DEG C, passes through and drives electricity
Machine and reductor drive push rod, and turbulent baffle is headed into SCR inlet vertical gas pass, turbulent baffle is formed angle with vertical gas pass
α is spent, α is more than 0 °, and the length headed into according to vertical flue both sides gas temperature windage value adjustment push rod in stove, flue gas are kept off by flow-disturbing
During plate, half side mixed flue gas flow direction is forced to change before flue, fully disturbs and mixes with the flue gas of rear side, laminar flow watershed area quilt
Thoroughly destroy, smoke-filling movement reaches unanimity, and eliminates flue-gas temperature deviation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821866.2A CN107617332A (en) | 2017-09-13 | 2017-09-13 | Solves the uneven vertical gas pass flow-disturbing system and method in SCR inlet temperature flow field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710821866.2A CN107617332A (en) | 2017-09-13 | 2017-09-13 | Solves the uneven vertical gas pass flow-disturbing system and method in SCR inlet temperature flow field |
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| CN107617332A true CN107617332A (en) | 2018-01-23 |
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ID=61089476
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| CN201710821866.2A Pending CN107617332A (en) | 2017-09-13 | 2017-09-13 | Solves the uneven vertical gas pass flow-disturbing system and method in SCR inlet temperature flow field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203532A (en) * | 2018-05-31 | 2021-01-08 | 日本烟草产业株式会社 | Fragrance generating device |
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|---|---|---|---|---|
| US20090297417A1 (en) * | 2008-05-27 | 2009-12-03 | Fuel Tech, Inc. | SELECTIVE CATALYTIC NOx REDUCTION PROCESS AND APPARATUS PROVIDING IMPROVED GASSIFICATION OF UREA TO FORM AMMONIA-CONTAINING GAS |
| CN203862030U (en) * | 2014-04-23 | 2014-10-08 | 陈美青 | Cover plate opening-closing control mechanism of dust pretreatment device |
| CN204346192U (en) * | 2014-12-25 | 2015-05-20 | 七台河宝泰隆煤化工股份有限公司 | Hand-rail type furnace flue damper regulator |
| CN104759206A (en) * | 2015-03-31 | 2015-07-08 | 山东鑫源环保工程技术有限公司 | SCR flue gas denitrification device provided with temperature-raising flue gas mixer |
| CN206152630U (en) * | 2016-08-26 | 2017-05-10 | 杭州明锐环保技术有限公司 | Online continuously adjustable nodal pattern SCR reactor flue gas flow straightener |
-
2017
- 2017-09-13 CN CN201710821866.2A patent/CN107617332A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090297417A1 (en) * | 2008-05-27 | 2009-12-03 | Fuel Tech, Inc. | SELECTIVE CATALYTIC NOx REDUCTION PROCESS AND APPARATUS PROVIDING IMPROVED GASSIFICATION OF UREA TO FORM AMMONIA-CONTAINING GAS |
| CN203862030U (en) * | 2014-04-23 | 2014-10-08 | 陈美青 | Cover plate opening-closing control mechanism of dust pretreatment device |
| CN204346192U (en) * | 2014-12-25 | 2015-05-20 | 七台河宝泰隆煤化工股份有限公司 | Hand-rail type furnace flue damper regulator |
| CN104759206A (en) * | 2015-03-31 | 2015-07-08 | 山东鑫源环保工程技术有限公司 | SCR flue gas denitrification device provided with temperature-raising flue gas mixer |
| CN206152630U (en) * | 2016-08-26 | 2017-05-10 | 杭州明锐环保技术有限公司 | Online continuously adjustable nodal pattern SCR reactor flue gas flow straightener |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112203532A (en) * | 2018-05-31 | 2021-01-08 | 日本烟草产业株式会社 | Fragrance generating device |
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