CN208270515U - A kind of device for the detection of SCR denitration full size bar operational characteristic - Google Patents
A kind of device for the detection of SCR denitration full size bar operational characteristic Download PDFInfo
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- CN208270515U CN208270515U CN201820284652.6U CN201820284652U CN208270515U CN 208270515 U CN208270515 U CN 208270515U CN 201820284652 U CN201820284652 U CN 201820284652U CN 208270515 U CN208270515 U CN 208270515U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
A kind of device for the detection of SCR denitration full size bar operational characteristic, it includes ammonia bottle (1), nitric oxide gas cylinder (2), sulfur dioxide gas cylinder (3), air compressor (4), nitrogen making machine (5), nitrogen storage tank (6), air blower (7), mixer (8), water injecting pump (9), electric heater (10), ammonia/nitrogen mixer (11), A reactor (12), B reactor (13), C reactor (14), D reactor (15), gas gas exchanger (16) and exhaust gas purification equipment (17).When test, the reactor of four arranged in series is packed into full-scale catalyst samples 1~4 according to actual needs, individual sample full-size 150mm (length) × 150mm (width) × 1500mm (height), SCR reactor in real simulation engineering.The flow and flue-gas temperature that each simulation gas source and water are controlled when test, are carried out the detection of SCR denitration operational characteristic, the residual temperature of simulation gas are recycled using gas gas exchanger (16), reduce electric heater power consumption.
Description
Technical field
The utility model patent belongs to environmental project technical field of air pollution control, specifically a kind of to be used for SCR denitration
The detection device of catalyst process characteristic.
Background technique
Currently, the detection device of major part SCR (selective catalytic reduction) denitrating catalyst operational characteristic belong to it is miniature
Experimental provision, can only detect volume is about 1cm3Catalyst samples below, cannot be entire catalyst monomer (full-size
150mm (length) × 150mm (width) × 1500mm (height)) as the sample detected, it can not also simulate and be gone here and there in practical SCR denitration engineering
Join four layers of catalyst reactor of arrangement, even if there is also detection flue gas flow rates to be less than on Practical Project in same space velocities
The flue gas flow rate of SCR, therefore cause testing result and the operational characteristic gap of SCR on Practical Project larger.Furthermore it is most of micro-
The shortcomings that type experimental provision material is ordinary carbon steel, easily influences detection effect by high-temperature oxydation there are reactor.Third, at present
It is mostly used in the equipment that the detection device of SCR denitration operational characteristic is not provided with Mist heat recovering, detection device
Nearly 400 DEG C of simulated flue gas directly empties, and energy loss and ambient temperature is caused to rise.
Utility model content
Four concatenated full-scale catalyst monomers (maximums can be detected simultaneously the purpose of this utility model is to provide a kind of
Having a size of 150mm (length) × 150mm (width) × 1500mm (height)) device of denitrating technique characteristic, realize denitrating catalyst technique
The real simulation of characteristic.The device also can avoid the metal problem of oxidation of reactor, and realize the recycling of simulation gas residual temperature.
The utility model is achieved through the following technical solutions:
A kind of device for the detection of SCR denitration full size bar operational characteristic, including ammonia bottle (1), an oxygen
Change nitrogen cylinder (2), sulfur dioxide gas cylinder (3), air compressor (4), nitrogen making machine (5), nitrogen storage tank (6), air blower (7), mix
Clutch (8), water injecting pump (9), electric heater (10), ammonia/nitrogen mixer (11), A reactor (12), B reactor (13), C are anti-
Answer device (14), D reactor (15), gas gas exchanger (16) and exhaust gas purification equipment (17), wherein the A reactor (12), B
Reactor (13), C reactor (14) and D reactor (15) arranged in series and it is respectively charged into catalyst to be detected, the tail gas
Lye liquid level in cleaning equipment (17) is higher than the half height of liquidometer, passes through the air compressor (4) and nitrogen processed
Machine (5) makes the nitrogen storage tank (6) to calculate total gas stream according to test experience condition and catalyst total volume full of nitrogen
Amount calculates SO2、NO、H2O、NH3And air mass flow, sulfur dioxide gas cylinder (3) outlet valve is opened, SO is adjusted2Flow is to setting
Definite value starts the aging technique process of catalyst 30h, after catalyst aging, opens ammonia bottle (1) the outlet valve regulation NH3
Flow opens nitric oxide gas cylinder (2) outlet valve to setting value, adjusts NO flow to setting value, simulates SCR flue gas and add
Heat to predetermined temperature, then with NH3Gas, which merges, enters A reactor (12), the B reactor (13), C reactor of four arranged in series
(14) and D reactor (15), and under the effect of the catalyst, major part NO and NH in mixed gas3Reaction, is converted into harmless
N2And H2O realizes denitrating technique process, and the flue gas for leaving reactor realizes recovered flue gas heat by the gas gas exchanger (16)
Amount realizes SO in simulation gas using the exhaust gas purification equipment (17)2The removing of pernicious gas and remaining NO gas, to
The temperature and NO, NO of D reactor (15) outlet2、NH3、SO2、SO3Concentration indicated value continuous 4h does not rise or fall same
In trend, and relative deviation be no more than 10% when, record C reactor (14) outlet NO, NO2、NH3、SO2、SO3Parameter, record
Denitration efficiency, NH3Escapement ratio, SO2/SO3Conversion ratio, the experiment of catalyst process Characteristics Detection terminate, catalyst process Characteristics Detection
After experiment, the sulfur dioxide gas cylinder (3), nitric oxide gas cylinder (2), ammonia bottle (1), electric heater are successively exited
(10), exhaust gas purification equipment (17), water injecting pump (9), nitrogen making machine (5), air compressor (4), to each reactor outlet flue gas temperature
Degree drops to 50 DEG C, exits air blower (7).
Preferably, the material of the A reactor (12), B reactor (13), C reactor (14) and D reactor (15) is
022Crl7Nil2Mo2。
Preferably, the A reactor (12), B reactor (13), C reactor (14) and D reactor (15) are cylinder
Body, interior diameter 250mm, length 1300mm.
Preferably, the heat-exchange tube of the gas gas exchanger (16) is extended surface tube.
A kind of detection device for SCR denitration operational characteristic of the utility model, has the following beneficial effects:
1, a kind of device for the detection of SCR denitration full size bar operational characteristic of the utility model, including
Ammonia bottle, nitric oxide gas cylinder, sulfur dioxide gas cylinder, air compressor, nitrogen making machine, nitrogen storage tank, air blower, mixer, note
Water pump, electric heater, ammonia/nitrogen mixer, A reactor, B reactor, C reactor, D reactor, gas gas exchanger and tail gas
Cleaning equipment；When experiment, NO, SO2, air, N2Be mixed and heated to predetermined temperature with water, then with NH3Gas sequentially enters after converging
The reactor of four arranged in series, in the reactor under the action of built-in full-scale catalyst, major part NO in simulated flue gas
With NH3Reaction, is converted into harmless N2And H2O realizes simulation denitrating technique.The simulated flue gas for leaving reactor is handed over by gas gas
Parallel operation realizes recovered flue gas heat, realizes SO in simulation gas using exhaust gas purification equipment2Pernicious gas and remaining NO gas
The removing of body；The detection of exhaust gas compositions imported and exported by reactor obtains denitration efficiency, ammonia/nitrogen molar ratio, SO2/SO3Conversion
Rate, NH3Escapement ratio denitrating technique characterisitic parameter.
2, the A reactor of the utility model, B reactor, C reactor and D reactor material are selected
022Crl7Ni14Mo2 can prevent metallic high temperature oxidation corrosion and have an impact the chemical component of denitration effect, thus further
The reliability of denitrating technique Characteristics Detection result is improved, A reactor, B reactor, C reactor and D reactor use internal diameter
250mm, the structure of the cylindrical body of long 1500mm can solve the problem of rectangular reactor according is easy to produce thermal deformation；Gas gas is handed over
The heat-exchange tube of parallel operation is extended surface tube structure type, and heat-exchange capacity can be improved, and the waste heat of recycling simulation gas reduces electricity and adds
Hot device power consumption.
Detailed description of the invention
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be according to this attached drawing
Obtain other attached drawings.
Attached drawing mark explanation:
1 --- ammonia bottle；
2 --- nitric oxide gas cylinder；
3 --- sulfur dioxide gas cylinder；
4 --- air compressor；
5 --- nitrogen making machine；
6 --- nitrogen storage tank；
7 --- air blower；
8 --- mixer；
9 --- water injecting pump；
10 --- electric heater；
11 --- ammonia/nitrogen mixer；
12 --- A reactor；
13 --- B reactor；
14 --- C reactor；
15 --- D reactor；
16 --- gas gas exchanger；
17 --- exhaust gas purification equipment.
Fig. 1 is a kind of original of the device for the detection of SCR denitration full size bar operational characteristic of the utility model
Reason figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, to the technical solution in inventive embodiments carry out it is clear,
It is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model:
As shown in Figure 1, a kind of device for the detection of SCR denitration full size bar operational characteristic, including ammonia
Bottle 1, nitric oxide gas cylinder 2, sulfur dioxide gas cylinder 3, air compressor 4, nitrogen making machine 5, nitrogen storage tank 6, air blower 7, mixer
8, water injecting pump 9, electric heater 10, ammonia/nitrogen mixer 11, A reactor 12, B reactor 13, C reactor 14, C reactor 15,
Gas gas exchanger 16 and exhaust gas purification equipment 17, wherein the A reactor 12, B reactor 13, C reactor 14 and D reactor
15 arranged in series and it is respectively charged into catalyst to be detected, the lye liquid level in the exhaust gas purification equipment 17 is higher than liquidometer
Half height makes the nitrogen storage tank 6 full of nitrogen by the air compressor 4 and nitrogen making machine 5, real according to detection
Condition and catalyst total volume are tested, total gas couette is calculated, calculates SO2、NO、H2O、NH3And air mass flow, open the dioxy
Change 3 outlet valve of sulphur gas cylinder, adjusts SO2Flow starts the aging technique process of catalyst 30h to setting value, after catalyst aging,
It opens the ammonia bottle 1 and exports valve regulation NH3Flow opens 2 outlet valve of nitric oxide gas cylinder to setting value, adjusts NO
Flow simulates SCR flue gas to predetermined temperature to setting value, then with NH3Gas converges the A reaction into four arranged in series
Device 12, B reactor 13, C reactor 14 and D reactor 15, and under the effect of the catalyst, in mixed gas major part NO with
NH3Reaction, is converted into harmless N2And H2O realizes denitrating technique process, and the flue gas for leaving reactor is exchanged by the gas gas
Device 16 realizes recovered flue gas heat, realizes SO in simulation gas using the exhaust gas purification equipment 172Pernicious gas and remnants
NO gas removing, to D reactor 15 export temperature and NO, NO2、NH3、SO2、SO3The continuous 4h of concentration indicated value is not same
In one trend risen or fallen, and relative deviation be no more than 10% when, record D reactor 15 export NO, NO2、NH3、SO2、
SO3Parameter records denitration efficiency, NH3Escapement ratio, SO2/SO3Conversion ratio, the experiment of catalyst process Characteristics Detection terminate, catalyst
After operational characteristic test experience, the sulfur dioxide gas cylinder 3, nitric oxide gas cylinder 2, ammonia bottle 1, electric heating are successively exited
Device 10, exhaust gas purification equipment 17, water injecting pump 9, nitrogen making machine 5, air compressor 4 are dropped to each reactor outlet flue-gas temperature
50 DEG C, exit air blower 7.
In the present embodiment, the A reactor 12, B reactor 13, C reactor 14 and D reactor 15 material be
022Cr17Ni12Mo2。
In the present embodiment, the A reactor 12, B reactor 13, C reactor 14 and D reactor 15 are cylindrical body, interior
Diameter is 250mm, length 1500mm.
In the present embodiment, the heat-exchange tube of the gas gas exchanger 16 is extended surface tube.
The specific work process of the present embodiment is as follows:
A reactor 12, B reactor 13, C reactor 14, the D reactor 15 of (1) four arranged in series are respectively charged into be checked
The sample (full-scale catalyst monomer) of survey, adjust exhaust gas purification equipment 17 in lye liquid level be higher than liquidometer two/
One height.
(2) air compressor 4, nitrogen making machine 5 put into operation, enable nitrogen storage tank 6 full of nitrogen.
(3) according to test experience condition and catalyst total volume, total gas couette is calculated, calculates SO2、NO、H2O、NH3With
Air mass flow.
(4) air blower 7 puts into operation, adjusts flow to setting value.
(5) 6 outlet valve of nitrogen storage tank is opened, adjusts flow to setting value.
(6) electric heater 10 puts into operation, and setting smoke temperature target value meets experiment condition.
(7) water injecting pump 9 puts into operation, adjusts flow to setting value.
(8) system heats up, until reactor imports and exports smoke temperature setting value, heating terminates.
(9) exhaust gas purification equipment 17 puts into operation.
(10) 3 outlet valve of sulfur dioxide gas cylinder is opened, SO is adjusted2Flow starts the aging work of catalyst 30h to setting value
Skill process.
(11) after catalyst aging, 1 outlet valve of ammonia bottle is opened, adjusts NH3Flow is to setting value；Open nitric oxide gas
2 outlet valves of bottle adjust NO flow to setting value.
(12) simulation SCR flue gas is to predetermined temperature, then with NH3Gas, which merges, enters the reaction of four arranged in series
Device, inside reactor under the action of catalyst, major part NO and NH in mixed gas3Reaction, is converted into harmless N2And H2O,
Realize denitrating technique process.
(13) flue gas for leaving reactor realizes recovered flue gas heat by gas gas exchanger 16, using tail gas clean-up
Equipment 17 realizes SO in simulation gas2The removing of pernicious gas and remaining NO gas.
(14) temperature and NO, NO to the outlet of D reactor 152、NH3、SO2、SO3The continuous 4h of concentration indicated value is not same
In the trend risen or fallen, and relative deviation be no more than 10% when, record D reactor 15 export NO, NO2、NH3、SO2、
SO3Parameter records denitration efficiency, NH3Escapement ratio, SO2/SO3Conversion ratio, the experiment of catalyst process Characteristics Detection terminate.
(15) after the experiment of catalyst process Characteristics Detection, utility model device is exited: successively exiting titanium dioxide
Sulphur gas cylinder 3, nitric oxide gas cylinder 2, ammonia bottle 1, electric heater 10, exhaust gas purification equipment 17, water injecting pump 9, nitrogen making machine 5, air
Compressor 4 drops to 50 DEG C to each reactor outlet flue-gas temperature, exits air blower 7.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the claim of the utility model still belong to the model that the utility model is covered
It encloses.
Claims (4)
1. a kind of device for the detection of SCR denitration full size bar operational characteristic, including ammonia bottle (1), an oxidation
Nitrogen cylinder (2), sulfur dioxide gas cylinder (3), air compressor (4), nitrogen making machine (5), nitrogen storage tank (6), air blower (7), mixing
Device (8), water injecting pump (9), electric heater (10), ammonia/nitrogen mixer (11), A reactor (12), B reactor (13), C reaction
Device (14), D reactor (15), gas gas exchanger (16) and exhaust gas purification equipment (17), wherein the A reactor (12), B are anti-
It answers device (13), C reactor (14) and D reactor (15) arranged in series and is respectively charged into catalyst to be detected, the tail gas is net
Change the half height that the lye liquid level in equipment (17) is higher than liquidometer, passes through the air compressor (4) and nitrogen making machine
(5) make the nitrogen storage tank (6) full of nitrogen, the air blower (7) and the water injecting pump (9) respectively with the mixer
(8) it is connected with the electric heater (10)；The nitric oxide gas cylinder (2), sulfur dioxide gas cylinder (3) are respectively communicated with the mixing
Device (8) is provided with and communicated with the electric heater (10) between the mixer (8) and the A reactor (12)；Ammonia/the nitrogen
Gas mixer (11) is connected to the ammonia bottle (1) and the ammonia/nitrogen mixer (11) be placed in the electric heater (10) and
Between the A reactor (12)；One branch of the nitrogen storage tank (6) is connected to the mixer (8), the nitrogen storage tank (6)
Another branch be connected to the ammonia/nitrogen mixer (11)；The D reactor (15) and the exhaust gas purification equipment (17) it
Between be provided with and communicated with the gas gas exchanger (16).
2. a kind of device for the detection of SCR denitration full size bar operational characteristic according to claim 1,
Be characterized in that: the A reactor (12), B reactor (13), C reactor (14) and D reactor (15) material be
022Cr17Ni12Mo2。
3. a kind of device for the detection of SCR denitration full size bar operational characteristic according to claim 1,
Be characterized in that: the A reactor (12), B reactor (13), C reactor (14) and D reactor (15) are cylindrical body, interior straight
Diameter is 250mm, length 1500mm.
4. a kind of device for the detection of SCR denitration full size bar operational characteristic according to claim 1,
Be characterized in that: the heat-exchange tube of the gas gas exchanger (16) is extended surface tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284652.6U CN208270515U (en) | 2018-02-28 | 2018-02-28 | A kind of device for the detection of SCR denitration full size bar operational characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820284652.6U CN208270515U (en) | 2018-02-28 | 2018-02-28 | A kind of device for the detection of SCR denitration full size bar operational characteristic |
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| CN208270515U true CN208270515U (en) | 2018-12-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261546A (en) * | 2019-06-28 | 2019-09-20 | 中冶南方都市环保工程技术股份有限公司 | The experimental rig and method of active coke desulphurizing and denitration performance can be tested simultaneously |
| CN113358511A (en) * | 2021-05-14 | 2021-09-07 | 华电电力科学研究院有限公司 | Experimental device and method for abrasion resistance of denitration catalyst to dust-containing flue gas |
-
2018
- 2018-02-28 CN CN201820284652.6U patent/CN208270515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261546A (en) * | 2019-06-28 | 2019-09-20 | 中冶南方都市环保工程技术股份有限公司 | The experimental rig and method of active coke desulphurizing and denitration performance can be tested simultaneously |
| CN113358511A (en) * | 2021-05-14 | 2021-09-07 | 华电电力科学研究院有限公司 | Experimental device and method for abrasion resistance of denitration catalyst to dust-containing flue gas |
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