CN209014530U - It is a kind of can self-test SCR denitration device for detecting activity - Google Patents
It is a kind of can self-test SCR denitration device for detecting activity Download PDFInfo
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- CN209014530U CN209014530U CN201821780217.9U CN201821780217U CN209014530U CN 209014530 U CN209014530 U CN 209014530U CN 201821780217 U CN201821780217 U CN 201821780217U CN 209014530 U CN209014530 U CN 209014530U
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- 238000012360 testing method Methods 0.000 title claims abstract description 92
- 230000000694 effects Effects 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 62
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 24
- 239000003546 flue gas Substances 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 8
- 235000019504 cigarettes Nutrition 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 68
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 33
- 238000000034 method Methods 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013401 experimental design Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to it is a kind of can self-test SCR denitration device for detecting activity, including several supply air lines, water injecting pump, water tank, preheating furnace, reacting furnace and calibration gas pipeline, mass flowmenter and valve are equipped on several supply air lines, mixed gas pipeline is formed after several supply air lines are in parallel and is connect with preheating furnace entrance, gas mixing pipe road is equipped with mixed gas valve, water filling pump intake is connect with water tank, outlet is connect with preheating pump intake, preheating outlet of still is connect by pipeline with reacting furnace entrance, test sample is set in reacting furnace, calibration gas piping connection is on gas mixing pipe road and is located at mixed gas valve in front of the door, mass flowmenter and valve are additionally provided on calibration gas pipeline.The detection device can to each road gas flow and add water speed rate calibrate, and synchronously complete the air-tightness to detection device, in reaction member smoke-filling movement flowing field stability examine.
Description
Technical field
The utility model relates to it is a kind of can self-test miniature SCR denitration device for detecting activity, belong to SCR denitration and urge
Agent performance detection technical field.
Background technique
Catalyst is the core link in selective catalytic reduction (SCR) denitration process.Under the effect of the catalyst, flue gas
In nitrogen oxides (NOx) can with spray into flue in reducing agent ammonia (NH3) the harmless N of reaction generation2And H2O.Miniature SCR
Denitrating catalyst device for detecting activity is a kind of experiment measurement dress dedicated for check and evaluation SCR denitration catalytic activity
It sets.Its operating condition environment for passing through simulated flue gas denitrating catalyst, measurement simulated flue gas pass through the group before and after catalyst sample
Divide variation, with the activity of test sample, and further assesses quality parameter and the inactivation characteristics etc. of sample.
To obtain accurate and repeatable determination of activity as a result, detection device is from the control to experiment condition condition
On need to meet the requirement of accuracy and stability, wherein must the core parameter of control include the flue gas flow of conversion zone, flue gas
Component, smoke-filling movement and the uniformity in flow field and stability.Domestic existing miniature SCR denitration device for detecting activity
It is nonstandardized technique equipment, does not have the function of examining and determine and calibrate from state substantially.Due to device in detection process and high temperature, height
It is wet and have corrosive simulated flue gas directly contact, easily cause device self performance state drift even failure.Once inspection
The unusual condition for surveying device is not found in time, can cause strong influence to the accuracy of final detection result.
Utility model content
The utility model in order to solve the problems in the existing technology, provide it is a kind of can the miniature SCR denitration of self-test urge
Agent device for detecting activity and self checking method, can before test experience by self-checking function to the performance state of device itself into
Row checks and adjustment, it is ensured that its accuracy and stability to the control of experiment condition condition ensures that SCR denitration is living with this
The accuracy and repeatability of property measurement result.
In order to achieve the above object, the utility model proposes technical solution are as follows: it is a kind of can self-test SCR denitration
Device for detecting activity, including distribution unit, water injection unit, preheating unit and reaction member；The distribution unit includes several confessions
Air pipe, the water injection unit include water injecting pump and water tank, and the preheating unit includes preheating furnace, and reaction member includes reaction
Furnace is equipped with mass flowmenter and valve on several supply air lines, forms mixed gas pipeline simultaneously after several supply air lines are in parallel
Connect with preheating furnace entrance, gas mixing pipe road is equipped with mixed gas valve, and water filling pump intake connect with water tank, export and
Pump intake connection is preheated, preheating outlet of still is connect by pipeline with reacting furnace entrance, and test sample is set in reacting furnace, the inspection
Surveying device further includes self-test unit, and the self-test unit includes calibration gas pipeline, and calibration gas piping connection is in mixed gas
On pipeline and it is located at mixed gas valve in front of the door, is additionally provided with mass flowmenter and valve on the calibration gas pipeline.
Above-mentioned technical proposal is further designed to: being equipped with the first water injecting pump between water filling pump discharge and the preheating furnace
Outlet valve, the self-test unit further include the second water injecting pump outlet valve, the second water injecting pump outlet valve and the first water injecting pump outlet valve
It is connected in parallel on water filling pump discharge, second water injecting pump outlet valve one end is connect with water filling pump discharge, and the other end is hanging.
The supply air line includes N2, compressed air, NO, SO2 and NH3 supply air line, and NH3 supply air line is equipped with parallel connection
The first NH3 mass flowmenter tail portion valve and the 2nd NH3 mass flowmenter tail portion valve, NH3 supply air line pass through the first NH3 mass
Flowmeter tail portion valve is connect with mixed gas pipeline, and NH3 supply air line passes through the 2nd NH3 mass flowmenter tail portion valve and preheating furnace
The piping connection in exit.
There are two the calibration gas pipeline is set, two calibration gas pipelines are connected in parallel on gas mixing pipe road, and are all provided with
There are mass flowmenter and valve.
The reacting furnace entrance pipe is equipped with reacting furnace inlet pressure gauge, and reacting furnace exit is equipped with reacting furnace tail portion valve
Door.
Pressure-measuring-point is equipped with inside the reacting furnace before and after test sample, two pressure-measuring-points pass through piping connection respectively
There is before test sample pressure gauge after pressure gauge and test sample, before test sample after pressure gauge and test sample before pressure gauge point
It She You not valve of pressure gauge after valve of pressure gauge and test sample before test sample；The reacting furnace inlet is equipped with rectification
Net.
Thermoelectricity thermocouple and test sample after is respectively equipped with before test sample inside the reacting furnace before and after test sample
It is even.
The detection device further includes flue gas inspection unit, and the flue gas inspection unit includes flue gas analyzer, the flue gas
Analyzer is connect with test sample rear and front end respectively.
The preheating furnace exit is equipped with preheating furnace exit thermocouple, is equipped with preheating furnace temperature control thermocouple in preheating furnace.
It is above-mentioned can self-test miniature SCR denitration device for detecting activity self checking method, including distribution unit detection,
Water injection unit detection and air-leakage test, the detecting step of the distribution unit are as follows: open valve on supply air line to be measured and
Valve on calibration gas pipeline closes the valve on remaining supply air line, compares the mass flowmenter on supply air line to be measured
And calibration gas pipeline is improved quality the flow of flowmeter, and the mass flowmenter on the supply air line to be measured is indicated if flow is identical
It is working properly, it is otherwise abnormal；
The water injection unit detecting step are as follows: take a beaker to be weighed as m1, be placed in that the second water injecting pump outlet valve is hanging to be gone out
At mouthful, for holding the water outpoured, the second water injecting pump outlet valve is opened, closes the first water injecting pump outlet valve, starting water injecting pump is simultaneously
Injection flow Q needed for setting is tested, and timing water injection time T, after water filling, are weighed as m2 for the beaker after being filled with water, pass through calculating
The value of actual flow Q1 and Q then indicate that water injecting pump is normal if they are the same, are otherwise exception；Wherein,；
The step of air-leakage test are as follows: close calibration gas pipeline on valve, the first NH3 mass flowmenter tail portion valve,
Reacting furnace tail portion valve, the second water injecting pump outlet valve open N2, compressed air, the valve on NO and SO2 supply air line, second
NH3 mass flowmenter tail portion valve 15, mixed gas valve, the first water injecting pump outlet valve, ventilate into preheating furnace and reacting furnace, to
25 registration of reacting furnace inlet pressure gauge stops ventilation when reaching 0.1Mpa, and whether observing response furnace inlet pressure gauge registration declines,
If do not declined, show that device air-tightness is good.
The utility model has the following beneficial effects:
One, the utility model can self-test miniature SCR denitration device for detecting activity and self checking method, by matching
Testing result caused by the self-test of gas unit and water injection unit can effectively avoid because of the exception of distribution unit stream meter and water injecting pump
Mistake.
Two, pressure-measuring-point is housed before and after the test sample of the reaction member of the detection device of the utility model, passes through measuring point
Pressure value can real-time monitoring due to screens block caused by flow field it is uneven.
Three, the reaction member outlet of the detection device of the utility model is equipped with hand-operated valve and pressure gauge, can be by closing hand
Dynamic valve carries out whole device to suppress carry out air tightness test.
Four, thermocouple is housed before and after the test sample of the reaction member of the detection device of the utility model, it can real-time monitoring
Pass through the flue-gas temperature of sample, it is ensured that reaction temperature is experimental design temperature value.
Five, the detection device of the utility model can be before carrying out the experiment of SCR denitration Activity determination, to distribution unit
Each road gas flow and add water speed rate to be calibrated, and synchronously complete the air-tightness to detection device, flue gas in reaction member
Temperature field flowing field stability is examined.Pass through self calibration to experimental detection device critical performance parameters itself and confirmation, it is ensured that inspection
Survey the accuracy and repeatability of result.
Detailed description of the invention
Fig. 1 is the flowage structure schematic diagram of this utility model device.
In figure: 1:N2 mass flowmenter；2: compressed air quality flowmeter；3:NO mass flowmenter；4:SO2 mass flow
Meter；5:NH3 mass flowmenter；Mass flowmenter is used in 6: the first calibration mass flowmenters, 7: the second calibrations；8:N2 mass flow
Count tail portion valve；9: compressed air quality flowmeter tail portion valve；10:NO mass flowmenter tail portion valve；11:SO2 mass flowmenter tail
Portion's valve；End valve before 12: the first calibration mass flowmenters；End valve before 13: the second calibration mass flowmenters；14: the one NH3 matter
Measure flowmeter tail portion valve；15: the two NH3 mass flowmenter tail portion valves；16: mixed gas valve；17: the first water filling pump discharges
Valve；18: the second water injecting pump outlet valves；19: water injecting pump；20: water tank；21: preheating furnace exit thermocouple；22: preheating furnace temperature control
Thermocouple；23: preheating furnace；24: thermocouple before test sample；25: reacting furnace inlet pressure gauge；26: pressure gauge before test sample
Valve；27: pressure gauge before test sample；28: reacting furnace；29: valve of pressure gauge after test sample；30: after test sample
Pressure gauge；31: thermocouple after test sample；32: reacting furnace tail portion valve；33: flue gas analyzer；34: screens.
Specific embodiment
With reference to the accompanying drawing and the utility model is described in detail in specific embodiment.
Embodiment
As shown in Figure 1, the present embodiment it is a kind of can self-test miniature SCR denitration device for detecting activity, including match
Gas unit, water injection unit, preheating unit, reaction member, flue gas inspection unit and self-test unit；The preheating unit includes preheating
Furnace 23, reaction member include reacting furnace 28, and the outlet of preheating furnace 23 is connect by pipeline with 28 entrance of reacting furnace, the distribution unit
Supply air line including meeting the unstrpped gas N2 of simulated flue gas component proportion, compressed air, NO, SO2 and NH3, each air supply pipe
Road is respectively equipped with N2 mass flowmenter 1, compressed air quality flowmeter 2, NO mass flowmenter 3,4 and of SO2 mass flowmenter
NH3 mass flowmenter 5 is respectively equipped with N2 mass flowmenter tail portion valve 8, pressure after N2, compressed air, NO and SO2 mass flowmenter
Contracting air flow meter tail portion valve 9, NO mass flowmenter tail portion valve 10 and SO2 mass flowmenter tail portion valve 11, NH3 quality stream
Be parallel with the first NH3 mass flowmenter tail portion valve 14 and the 2nd NH3 mass flowmenter tail portion valve 15 after meter, N2, compressed air,
Mixed gas pipeline is formed after SO2 and NO supply air line is in parallel and is connect with 23 entrance of preheating furnace, and gas mixing pipe road is equipped with
Mixed gas valve 16, wherein the first NH3 mass flowmenter tail portion valve 14 and other air supply pipes on NH3 supply air line and pipeline
Road is in parallel, and is connected to gas mixing pipe on the road and before mixed gas valve 16, the 2nd NH3 mass flowmenter tail portion valve 15
With the piping connection in 23 exit of preheating furnace.
Water injection unit includes water injecting pump 19, water tank 20 and the water injecting pipeline interconnected, water injecting pipeline and preheating furnace 23
Entrance connection, water injecting pump 19 are used to pump out of water tank 20 to 23 entrance of preheating furnace by water injecting pipeline, and water injecting pump 19 exports
Place is parallel with the first water injecting pump outlet valve 17 and the second water injecting pump outlet valve 18, and the first water injecting pump outlet valve 17 is set to water injecting pump
Between 19 and preheating furnace 23,18 one end of the second water injecting pump outlet valve is hanging.
23 exit of preheating furnace is equipped with preheating furnace exit thermocouple 21, is equipped with preheating furnace temperature control thermocouple in preheating furnace 23
22。
It is equipped with test sample in reacting furnace 28, is respectively equipped with thermocouple 24 and test specimens before test sample before and after test sample
Thermocouple 31 after product, the pipeline of 28 inlet of reacting furnace is equipped with reacting furnace inlet pressure gauge 25, in reacting furnace before test sample
Pressure-measuring-point has pressure gauge 27 before test sample by piping connection, presses before being equipped with test sample before pressure gauge 27 before test sample
Valve 26 of power table；Pressure-measuring-point in reacting furnace after test sample has pressure gauge 30 after test sample by piping connection, surveys
Equipped with valve 29 of pressure gauge after test sample before pressure gauge 30 after test agent；28 tail portion of reacting furnace is equipped with reacting furnace tail portion valve
32, reacting furnace inlet is equipped with screens 34.
Flue gas inspection unit includes flue gas analyzer 33, and flue gas analyzer 33 is connect with test sample rear and front end respectively.
Self-test unit includes the first, second calibration gas pipeline and the second water injecting pump outlet valve 18, the first, second calibration gas
Body pipeline is connected in parallel on before the mixed gas valve 16 of mixed gas pipeline, and the first calibration gas pipeline is equipped with the first calibration and uses
End valve 12 before mass flowmenter 6 and the first calibration mass flowmenter, the second calibration gas pipeline are equipped with the second calibration and use matter
Flowmeter 7 and second calibration end valve 13 before mass flowmenter are measured, two calibration gas pipelines are in parallel with each supply air line respectively.
Above-described embodiment can the self checking method of miniature SCR denitration device for detecting activity of self-test include in following
Hold:
It detects each supply air line to improve quality flowmeter method whether working properly are as follows: open N2 mass flowmenter tail portion
End valve 12 before valve 8 and the first calibration mass flowmenter, closes compressed air quality flowmeter tail portion valve 9, NO mass flowmenter
End valve 13, the first NH4 mass flowmenter before tail portion valve 10, the calibration mass flowmenter of SO2 mass flowmenter tail portion valve 11, second
Tail portion valve 14, mixed gas valve 16 are with the flow of mass flowmenter 6 by comparison N2 mass flowmenter 1 and the first calibration
It is whether working properly that N2 mass flowmenter 1 can be reacted.
Similarly, compressed air quality flowmeter tail portion valve 9 and first calibration end valve 12 before mass flowmenter are opened, is closed
Quality is used in N2 mass flowmenter tail portion valve 8, NO mass flowmenter tail portion valve 10, the calibration of SO2 mass flowmenter tail portion valve 11, second
End valve 13, the first NH3 mass flowmenter tail portion valve 14, mixed gas valve 16 before flowmeter, by comparing compressed air quality
Whether the flow of flowmeter 2 and the first calibration mass flowmenter 6 can react compression air flow meter 2 working properly.
NO mass flowmenter tail portion valve 10 and second calibration end valve 13 before mass flowmenter are opened, N2 mass flow is closed
Mass flow is used in meter tail portion valve 8, compressed air quality flowmeter tail portion valve 9, the calibration of SO2 mass flowmenter tail portion valve 11, first
End valve 12, the first NH3 mass flowmenter tail portion valve 14, mixed gas valve 16 before counting pass through comparison NO mass flowmenter 3 and the
Whether the flow of the mutatis mutandis mass flowmenter 7 of second revisal can react NO mass flowmenter 3 working properly.
SO2 mass flowmenter tail portion valve 11 and second calibration end valve 13 before mass flowmenter are opened, N2 quality stream is closed
Mass flow is used in meter tail portion valve 8, compressed air quality flowmeter tail portion valve 8, the calibration of NO mass flowmenter tail portion valve 10, first
Count before end valve 12, the first NH3 mass flowmenter tail portion valve 14, mixed gas valve 16, by comparison SO2 mass flowmenter 4 and
Whether the flow of the second calibration mass flowmenter 13 can react SO2 mass flowmenter 4 working properly.
End valve 13 before the first NH3 mass flowmenter tail portion valve 14 and the second calibration mass flowmenter is opened, N2 matter is closed
Measure flowmeter tail portion valve 8, compressed air quality flowmeter tail portion valve 9, NO mass flowmenter tail portion valve 10, SO2 mass flowmenter
End valve 12, the 2nd NH3 mass flowmenter tail portion valve 15, mixed gas valve before the calibration mass flowmenter of tail portion valve 11, first
16, NH3 mass flowmenter 5 can be reacted by the flow of comparison NH3 mass flowmenter 5 and the second calibration mass flowmenter 7
It is whether working properly.
Since NO, SO2 and NH3 of composition mixed gas are corrosive gas, so the present embodiment alignment flue
There are two road is set, the first calibration gas pipeline is used to detect the mass flowmenter of N2 and compressed air line, the second calibration gas
Pipeline is used to detect the mass flowmenter of the corrosive gas pipeline such as NO, SO2 and NH3, avoids corrosive gas and other gases
Mixing and avoid corrosive gas from corroding mass flowmenter and valve on all calibration gas pipelines.
Detect the whether normal method of water injecting pump are as follows: take a beaker to be weighed as m1, it is outstanding to be placed in the second water injecting pump outlet valve 18
It opens the second water injecting pump outlet valve 18 for holding the water outpoured and closes the first water injecting pump outlet valve 17, starting in empty exit
Simultaneously the required injection flow Q of test is arranged in water injecting pump 19, and timing water injection time T, and the beaker after being filled with water is weighed as m2, passes through meter
It calculatesCan determine whether water injecting pump 19 is abnormal with the value of Q.
The mistake of testing result, in next step may be used caused by the avoidable exception because of air distribution system flowmeter of the self-test of air distribution system
Airtight test is carried out to whole device by experimental apparatus for testing air pressure.After the completion of test sample loading, the first school is closed
The calibration of end valve 12, second end valve 13, the first NH3 mass flowmenter tail portion valve before mass flowmenter before mutatis mutandis mass flowmenter
14, reacting furnace tail portion valve 32, the second water injecting pump outlet valve 18 open N2 mass flowmenter tail portion valve 8, compressed air quality stream
Meter tail portion valve 9, NO mass flowmenter tail portion valve 10, SO2 mass flowmenter tail portion valve 11, the 2nd NH3 mass flowmenter tail portion
Valve 15, mixed gas valve 16, the first water injecting pump outlet valve 17, are passed through N2 to reaction unit by N2 mass flowmenter 1, to anti-
Stop ventilation when 25 registration of furnace inlet pressure gauge being answered to reach 0.1Mpa, whether 25 registration of observing response furnace inlet pressure gauge declines,
If do not declined, show that device air-tightness is good.
After can be by pressure gauge 27 before the front and back pressure-measuring-point test sample of observation test sample and test sample when test
It is uneven come flow field caused by judging screens 34 whether due to blocking whether the pressure difference of pressure gauge 30 is higher than the normal value of setting.
The present embodiment can also pass through sample by 31 real-time monitoring of thermocouple after thermocouple 24, test sample before test sample
Flue-gas temperature, it is ensured that reaction temperature be experimental design temperature value, and can by flue gas analyzer 33 come to reaction front and back flue gas
It is analyzed.
The technical solution of the utility model is not limited to the various embodiments described above, all technologies obtained using equivalent replacement mode
Scheme is all fallen in the range of the requires of the utility model protection.
Claims (9)
1. one kind can self-test SCR denitration device for detecting activity, including distribution unit, water injection unit, preheating unit and
Reaction member；The distribution unit includes several supply air lines, and the water injection unit includes water injecting pump and water tank, the preheating
Unit includes preheating furnace, and reaction member includes reacting furnace, and mass flowmenter and valve, several confessions are equipped on several supply air lines
Mixed gas pipeline is formed after air pipe is in parallel and is connect with preheating furnace entrance, and gas mixing pipe road is equipped with mixed gas valve
Door, water filling pump intake are connect with water tank, and outlet is connect with preheating pump intake, and preheating outlet of still passes through pipeline and reacting furnace entrance
Connection, test sample are set in reacting furnace, it is characterised in that: further include self-test unit, the self-test unit includes calibration gas
Body pipeline, calibration gas piping connection is on gas mixing pipe road and is located at mixed gas valve in front of the door, the calibration gas pipeline
On be additionally provided with mass flowmenter and valve.
2. according to claim 1 can self-test SCR denitration device for detecting activity, it is characterised in that: the water filling
The first water injecting pump outlet valve is equipped between pump discharge and preheating furnace, the self-test unit further includes the second water injecting pump outlet valve, the
Two water injecting pump outlet valves and the first water injecting pump outlet valve are connected in parallel on water filling pump discharge, second water injecting pump outlet valve one end and water injecting pump
Outlet connection, the other end are hanging.
3. according to claim 2 can self-test SCR denitration device for detecting activity, it is characterised in that: the gas supply
Pipeline includes N2, compressed air, NO, SO2 and NH3 supply air line, and NH3 supply air line is equipped with the first NH3 quality stream in parallel
Meter tail portion valve and the 2nd NH3 mass flowmenter tail portion valve, NH3 supply air line by the first NH3 mass flowmenter tail portion valve with
The connection of mixed gas pipeline, NH3 supply air line are connected by the 2nd NH3 mass flowmenter tail portion valve and the pipeline in preheating furnace exit
It connects.
4. according to claim 3 can self-test SCR denitration device for detecting activity, it is characterised in that: the calibration
There are two gas piping is set, two calibration gas pipelines are connected in parallel on gas mixing pipe road, and are equipped with mass flowmenter and valve
Door.
5. according to claim 4 can self-test SCR denitration device for detecting activity, it is characterised in that: the reaction
Furnace entrance pipe is equipped with reacting furnace inlet pressure gauge, and reacting furnace exit is equipped with reacting furnace tail portion valve.
6. according to claim 5 can self-test SCR denitration device for detecting activity, it is characterised in that: the reaction
Furnace interior is equipped with pressure-measuring-point before and after test sample, and two pressure-measuring-points pass through piping connection respectively pressure before test sample
Pressure gauge after table and test sample, before being respectively equipped with test sample before pressure gauge after pressure gauge and test sample before test sample
Valve of pressure gauge after valve of pressure gauge and test sample；The reacting furnace inlet is equipped with screens.
7. according to claim 6 can self-test SCR denitration device for detecting activity, it is characterised in that: the reaction
Furnace interior is respectively equipped with before test sample thermocouple after thermocouple and test sample before and after test sample.
8. according to claim 7 can self-test SCR denitration device for detecting activity, it is characterised in that: further include cigarette
Gas detection unit, the flue gas inspection unit includes flue gas analyzer, the flue gas analyzer respectively with test sample before and after two
End connection.
9. according to claim 8 can self-test SCR denitration device for detecting activity, it is characterised in that: preheating furnace goes out
It is equipped with preheating furnace exit thermocouple at mouthful, is equipped with preheating furnace temperature control thermocouple in preheating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780217.9U CN209014530U (en) | 2018-10-31 | 2018-10-31 | It is a kind of can self-test SCR denitration device for detecting activity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780217.9U CN209014530U (en) | 2018-10-31 | 2018-10-31 | It is a kind of can self-test SCR denitration device for detecting activity |
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| Publication Number | Publication Date |
|---|---|
| CN209014530U true CN209014530U (en) | 2019-06-21 |
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ID=66840865
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780217.9U Active CN209014530U (en) | 2018-10-31 | 2018-10-31 | It is a kind of can self-test SCR denitration device for detecting activity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061036A (en) * | 2018-10-31 | 2018-12-21 | 国电环境保护研究院有限公司 | It is a kind of can self-test SCR denitration device for detecting activity and self checking method |
-
2018
- 2018-10-31 CN CN201821780217.9U patent/CN209014530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061036A (en) * | 2018-10-31 | 2018-12-21 | 国电环境保护研究院有限公司 | It is a kind of can self-test SCR denitration device for detecting activity and self checking method |
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