CN105571969A - Testing device for SCR denitration crystal abrasion strength property and testing method thereof - Google Patents
Testing device for SCR denitration crystal abrasion strength property and testing method thereof Download PDFInfo
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- CN105571969A CN105571969A CN201610039899.7A CN201610039899A CN105571969A CN 105571969 A CN105571969 A CN 105571969A CN 201610039899 A CN201610039899 A CN 201610039899A CN 105571969 A CN105571969 A CN 105571969A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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Abstract
The invention discloses a testing device for an SCR denitration crystal abrasion strength property and a testing method thereof. The testing device is composed of a high-power frequency conversion draught fan, a draught fan controller, an integration control cabinet, a computer control system, a draught fan pipeline, a butterfly valve, a wind speed volume meter, a thermosensitive anemograph, a sample comparison bin, a tailing dust collecting bag, an automatic abrasion agent feeding device, a sample testing bin, a movable clamping groove, a pulse dust collection device, a tailing dust collecting device and an electronic platform scale. By means of the testing device and the testing method, the abrasion strength of various SCR denitration crystals can be accurately tested, and a wide application range is achieved.
Description
Technical field
The present invention relates to a kind of test unit and test method thereof of SCR denitration tear strength performance, it is a kind of high intelligent apparatus of the tear strength being used for testing all kinds of catalyst for denitrating flue gas specially, belongs to mechanical field.
Background technology
The tear strength of SCR denitration is an important indicator of assessment catalyst physical performance, at present, the tear strength of test honeycomb type denitrification catalyst honeycomb type denitrification catalyst to be made into after certain specification directly sample bin and test cabin, washes away by simulation firepower power plant stack gas stream the tear strength testing honeycomb type denitrification catalyst.But because floor area is large, noise large, the not high factor of testing precision, experiment effect is not ideal.During the tear strength of test slab formula denitrating catalyst, it is sheet Plate-type denitration catalyst being made into certain specification, by the stationary rotary friction of emery wheel and counterweight, carry out measuring unit time internal loss amount, this can not reflect the actual condition of Plate-type denitration catalyst in the flue of fuel-burning power plant really, does not reach desirable test effect.
Therefore, in order to meet denitrating catalyst detect actual needs, for denitrating catalyst tear strength test job and design this test unit.The tear strength work of all types of denitrating catalysts can be made so more convenient, ensure the accuracy of experiment, improve the efficiency of the tear strength testing of denitrating catalyst.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention discloses a kind of test unit and test method thereof of SCR denitration tear strength performance, this proving installation and test method can test the tear strength of all types of SCR denitration exactly, with a wide range of applications.
Concrete technical scheme is as follows:
A test unit for SCR denitration tear strength performance, comprising: blower fan;
At least a set of test unit be connected with described blower fan by pipeline, is arranged in parallel between each cover test unit;
Often overlap test unit and comprise at least one sample contrast wind path and at least one specimen test wind path, described sample contrast wind path comprises be connected in series successively butterfly valve, wind speed and wind gauge, sample contrast storehouse and tail dirt collecting bag; Described sample experiments wind path comprises be connected in series successively butterfly valve, wind speed and wind gauge, wearing and tearing agent automatic feeding device, specimen test storehouse, pulsed dust-removing device, tail dirt gathering-device and electronic ground scale;
Described specimen test storehouse and sample contrast inside, storehouse are provided with mobile draw-in groove, place Plate-type denitration catalyst in described mobile draw-in groove;
The front and back described sample contrast wind path being positioned at sample contrast storehouse are provided with temperature-sensitive anemoscope, and the front and back described specimen test wind path being positioned at test cabin are provided with temperature-sensitive anemoscope;
Described blower fan, butterfly valve, wind speed and wind gauge, temperature-sensitive anemoscope, wearing and tearing agent automatic feeding device, pulsed dust-removing device, tail dirt gathering-device and electronic ground scale are all connected with computer control system.
Be provided with some grids in described mobile draw-in groove, the tablet arrangement direction of Plate-type denitration catalyst is parallel with air inlet/outlet direction.
Gap is equipped with, by kaowool sealing, clamping in gap between the inwall that described mobile draw-in groove and sample contrast storehouse, specimen test storehouse.
Described blower fan is high-power frequency conversion blower fan.
Described butterfly valve is automatic double eccentric butterfly valve.
Described wind speed and wind gauge is high precision wind speed and wind gauge.
The two ends in described sample contrast storehouse are provided with air inlet and air outlet, and test air can contrast storehouse by sample uniformly, and sample contrast top, storehouse is provided with rectangle opening port, opening port is provided with and can opens and the lid sealed; The two ends in described specimen test storehouse are provided with air inlet and air outlet, and test air can pass through specimen test storehouse uniformly, and top, specimen test storehouse is provided with rectangle opening port, opening port is provided with and can opens and the lid sealed.
Described pipeline is carbon structural steels hollow tubular.
Utilize the test unit of described SCR denitration tear strength performance to carry out the method tested, comprise the following steps:
Step one, one or more sets test units to be linked into the form of parallel connection on the pipeline of total wind regime, to form the test platform of complete set;
Step 2, computer control system calculate the air quantity required for proving installation automatically, by the air outlet air quantity of monitoring air blower tube road junction end, computer control system regulates the aperture of the butterfly valve of air blower tube road junction end automatically, to meet the air quantity requirement of each proving installation;
Step 3, computer control system record respectively overlap air quantity, wind speed, the tail dirt weight of all time periods in proving installation experimentation, and form diagram file; The sample that user weighs this device contrasts the quality of testing front and back sample in storehouse and specimen test storehouse, and in input computing machine, computer control system calculates the tear strength of this denitrating catalyst sample automatically.
Decline rapidly when computer control system monitors air quantity and wind speed in this proving installation pipeline, after preset value, computer control system is closed butterfly valve automatically, cut off the air quantity in this proving installation pipeline, computer control system prompting operator seal failure, after operator checks the sealing property of this proving installation, click the reset on software, continue to start test.
The invention has the beneficial effects as follows:
(1) specimen test storehouse of the present invention and sample contrast storehouse adopt parallel way to arrange, avoid the error that the wind loss in single pipeline etc. is serious, compared with traditional flat catalyst abrasion strength testing device, experimental result is closing to reality operating mode more.
(2) the present invention adopts parallel way to arrange, for convenience detach, saves usage space, and compared with traditional flat catalyst abrasion strength testing device, usage space saving is more than 50%.
(3) the present invention in use, according to the requirement of user, one or more sets shunting means can be installed additional, carry out the work with the needs of satisfied test simultaneously, than traditional flat catalyst abrasion strength testing device, there are higher dirigibility and work efficiency.
(4) the present invention in use, user only need record the sample quality before and after experiment, computer control system can record the data such as air quantity, wind speed, wearing and tearing agent output quantity, experiment rear wearing and tearing agent quality of each time point in this experimentation automatically, and relevant spectrogram can be provided, greatly facilitate tester to use.Than traditional flat catalyst abrasion strength testing device, there are more experimental datas accurately, can the performance of the more analysis sample of system, the LIMS system entering laboratory can be connected, complete the Macro or mass analysis of data.
(5) the present invention in use, and computer control system can regulate each reference mark automatically, and device is carried out according to user's expected effect.This device can automatic start-stop, highly shortened human users's time, than traditional flat catalyst abrasion strength testing device, more liberates manpower, do not need long monitoring.
(6) the present invention in use, the high-precision equipment investments such as automatic double eccentric butterfly valve, high precision wind speed and wind gauge, temperature-sensitive anemoscope, pulsed dust-removing device, tail dirt gathering-device and electronic ground scale, drastically increase the accuracy of this equipment Inspection result.Meanwhile, high-precision equipment investment makes test environment noise low, and than traditional flat catalyst abrasion strength testing device, the hearing of insured user, avoids personal injury more.
Accompanying drawing explanation
Fig. 1 is a set of proving installation arrangement schematic diagram of the present invention;
Fig. 2 is two cover proving installation arrangement schematic diagram of the present invention;
Fig. 3 is the mobile draw-in groove structural representation that Plate-type denitration catalyst uses;
Wherein: 1-high-power frequency conversion blower fan, 2-safty shield, 3-Fan pipeline, 4-computer control system, 5-data cable, 6-PLC integrating control cabinet, 7-double eccentric butterfly valve automatically, 8-wind speed and wind gauge, 9-metal Coupling plate, 10-temperature-sensitive anemoscope, 11-sample contrast storehouse, 12-specimen test storehouse, 13-sand tank, 14-pulsed dust-removing device, 15-pulse dust removal controller, 16-tail dirt gathering-device, 17-electronic ground scale, 18-air compressor, 19-tail dirt collecting bag, 20-pressurized air efferent duct, 21-variable-frequency motor, 22-support, 23-mobile draw-in groove.
Embodiment
Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1
Fig. 1 is the structural representation of the embodiment of the present invention 1, visible by reference to the accompanying drawings,
High-power frequency conversion blower fan 1 connects each base part by carbon constructional quality steel hollow tubular, and there is the safty shield 2 of porous its outside, in case foreign matter falls into.
Air quantity, by often pair of test platform trident shape of the mouth as one speaks pipeline, is divided into two parts by Fan pipeline 3, enters sample contrast storehouse 11 and specimen test storehouse 12 respectively.Described computer control system 4 can regulate automatic double eccentric butterfly valve 7.
High precision wind speed and wind gauge 8 can on-line monitoring, makes the air quantity entering sample contrast storehouse 11 and specimen test storehouse 12 meet requirement of experiment.
Arrange temperature-sensitive anemoscope 10 respectively, on-line monitoring wind speed in sample contrast storehouse 11 and the front and back in specimen test storehouse 12, in real time by numeric feedback to computer control system 4, to regulate automatic double eccentric butterfly valve 7, make wind speed in pipeline meet testing requirement.
Sample contrast wind path is by pipeline, temperature-sensitive anemoscope 10, sample contrast storehouse 11, tail dirt collecting bag 19 tandem compound.
Specimen test wind path becomes a set of proving installation by pipeline, temperature-sensitive anemoscope 10, wearing and tearing agent automatic feeding device, specimen test storehouse 12, pulsed dust-removing device 14, tail dirt gathering-device 16, electronic ground scale 17 tandem compound.
Described high-power frequency conversion blower fan 1 is as total wind regime, and according to user place of production space size, one or more sets proving installations of independent assortment are linked into the form of parallel connection on the pipeline of total wind regime, forms the test platform of complete set.Test platform respectively overlaps proving installation complementation interference, can independently test.
The reference mark data-signal of the controller of fan on this test platform, automatically double eccentric butterfly valve 7, high precision wind speed and wind gauge 8, temperature-sensitive anemoscope 10, wearing and tearing agent automatic feeding device, pulsed dust-removing device 14, tail dirt gathering-device 16, electronic ground scale 17 will be pooled to PLC integrating control cabinet 6 in real time, the data feedback value at each reference mark is monitored by computer control system 4, by arranging and regulating the numerical value at each reference mark, with the needs of satisfied test during use.Described computer control system 4 can monitor high precision wind speed and wind gauge 8, the temperature-sensitive anemoscope 10 of each proving installation, experimentally need air quantity in pipeline and wind speed, computer control system 4 sets air quantity in this proving installation pipeline and wind speed, and the automatic double eccentric butterfly valve 7 of this proving installation front end of dynamic adjustments controls intake.
When computer control system 4 can calculate the air quantity there emerged a required for proving installation automatically, by the air outlet air quantity of monitoring Fan pipeline 3 mouthfuls of ends, computer control system 4 regulates the aperture of the automatic double eccentric butterfly valve 7 of Fan pipeline 3 mouthfuls of ends automatically, to meet the air quantity requirement of each proving installation.The sealing property of pipeline can also be monitored simultaneously, decline rapidly when computer control system 4 monitors air quantity and wind speed in this proving installation pipeline, after preset value, computer control system 4 is closed automatic double eccentric butterfly valve 7 automatically, cut off the air quantity in this proving installation pipeline, computer control system 4 points out operator seal failure.After operator checks the sealing property of this proving installation, click the reset on software, can continue to start test.
Described computer control system 4 can regulate the transfer rate of wearing and tearing agent automatic feeding device automatically, makes to enter wearing and tearing agent in airduct and meets and arrange requirement.
All there are air inlet and air outlet in the two ends in described sample contrast storehouse 11 and specimen test storehouse 12, test air can pass through warehouse uniformly, warehouse top is provided with rectangle opening port, and opening port can be opened and the lid that can seal, lid is sealed by semi-fixed type threading snaps.
Described mobile draw-in groove is exclusively used in placement Plate-type denitration catalyst, by the adjustment of the spacing of inner steel mesh and steel mesh, be applicable to placing suitable sheet number, the flat board of Plate-type denitration catalyst is parallel with air inlet/outlet direction, can meet the purging of quick flow uniformly.The inwall that mobile draw-in groove and sample contrast storehouse 11 and specimen test storehouse 12 has gap, can by instrument sealings such as kaowools, clamping.
Honeycomb type denitrification catalyst, triangle honeycomb type denitrification catalyst and corrugated plate dst denitrating catalyst are directly made into suitable size, put into warehouse test with kaowool parcel.
Computer control system 4 arranges the experimental period of this proving installation, and show on computer monitor, after experimental period reaches, computer control system 4 is closed automatic double eccentric butterfly valve 7 automatically, cut off the air quantity in this proving installation pipeline, automatically close the wearing and tearing agent automatic feeding device of this proving installation, automatically close pulsed dust-removing device 14.The data feedback that electronic ground scale 17 shows by computer control system 4 is in computer control system 4.Computer control system 4 can record air quantity, wind speed, the tail dirt weight of all time periods in each cover proving installation experimentation, and forms diagram file.User weighs the quality of the interior experiment front and back in sample contrast storehouse 11 and specimen test storehouse 12 sample of this device, and in input computing machine, computer control system 4 will calculate the tear strength of this denitrating catalyst sample automatically.When the experiment of each pair of proving installation all terminates, user can close high-power frequency conversion blower fan 1 automatically by computer control system 4.
Fig. 3 is the mobile draw-in groove structural representation that Plate-type denitration catalyst uses.As seen from the figure, mobile draw-in groove 23 is exclusively used in placement Plate-type denitration catalyst, by the adjustment of the spacing of inner steel mesh and steel mesh, is applicable to placing suitable sheet number, the flat board of Plate-type denitration catalyst is parallel with air inlet/outlet direction, can meet the purging of quick flow uniformly.The inwall that mobile draw-in groove and sample contrast storehouse 11 and specimen test storehouse 12 has gap, can by instrument sealings such as kaowools, clamping.
Apparatus of the present invention effectively can alleviate the workload of user; shorten the test duration, the occupational health of available protecting user, add the testing efficiency of device; enhance the tear strength of the dissimilar SCR denitration of device to test, improve device to test result accuracy.
Utilize the test unit of described SCR denitration tear strength performance to carry out the method tested, comprise the following steps:
Step one, one or more sets test units to be linked into the form of parallel connection on the pipeline of total wind regime, to form the test platform of complete set;
Step 2, computer control system calculate the air quantity required for proving installation automatically, by the air outlet air quantity of monitoring air blower tube road junction end, computer control system regulates the aperture of the butterfly valve of air blower tube road junction end automatically, to meet the air quantity requirement of each proving installation;
Step 3, computer control system record respectively overlap air quantity, wind speed, the tail dirt weight of all time periods in proving installation experimentation, and form diagram file; The sample that user weighs this device contrasts the quality of testing front and back sample in storehouse and specimen test storehouse, and in input computing machine, computer control system calculates the tear strength of this denitrating catalyst sample automatically.
Decline rapidly when computer control system monitors air quantity and wind speed in this proving installation pipeline, after preset value, computer control system is closed butterfly valve automatically, cut off the air quantity in this proving installation pipeline, computer control system prompting operator seal failure, after operator checks the sealing property of this proving installation, click the reset on software, continue to start test.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its steel structure can be flexible and changeable, can subseries scheme.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (10)
1. a test unit for SCR denitration tear strength performance, is characterized in that: comprising: blower fan;
At least a set of test unit be connected with described blower fan by pipeline, is arranged in parallel between each cover test unit;
Often overlap test unit and comprise at least one sample contrast wind path and at least one specimen test wind path, described sample contrast wind path comprises be connected in series successively butterfly valve, wind speed and wind gauge, sample contrast storehouse and tail dirt collecting bag; Described sample experiments wind path comprises be connected in series successively butterfly valve, wind speed and wind gauge, wearing and tearing agent automatic feeding device, specimen test storehouse, pulsed dust-removing device, tail dirt gathering-device and electronic ground scale;
Described specimen test storehouse and sample contrast inside, storehouse are provided with mobile draw-in groove, place Plate-type denitration catalyst in described mobile draw-in groove;
The front and back described sample contrast wind path being positioned at sample contrast storehouse are provided with temperature-sensitive anemoscope, and the front and back described specimen test wind path being positioned at specimen test storehouse are provided with temperature-sensitive anemoscope;
Described blower fan, butterfly valve, wind speed and wind gauge, temperature-sensitive anemoscope, wearing and tearing agent automatic feeding device, pulsed dust-removing device, tail dirt gathering-device and electronic ground scale are all connected with computer control system.
2. the test unit of a kind of SCR denitration tear strength performance according to claim 1, it is characterized in that: be provided with some grids in described mobile draw-in groove, the tablet arrangement direction of Plate-type denitration catalyst is parallel with air inlet/outlet direction.
3. the test unit of a kind of SCR denitration tear strength performance according to claim 1, is characterized in that: be equipped with gap between the inwall that described mobile draw-in groove and sample contrast storehouse, specimen test storehouse, by kaowool sealing, clamping in gap.
4. the test unit of a kind of SCR denitration tear strength performance according to claim 1, is characterized in that: described blower fan is high-power frequency conversion blower fan.
5. the test unit of a kind of SCR denitration tear strength performance according to claim 1, is characterized in that: described butterfly valve is automatic double eccentric butterfly valve.
6. the test unit of a kind of SCR denitration tear strength performance according to claim 1, is characterized in that: described wind speed and wind gauge is high precision wind speed and wind gauge.
7. the test unit of a kind of SCR denitration tear strength performance according to claim 1, it is characterized in that: the two ends in described sample contrast storehouse are provided with air inlet and air outlet, test air can contrast storehouse by sample uniformly, sample contrast top, storehouse is provided with rectangle opening port, opening port is provided with and can opens and the lid sealed; The two ends in described specimen test storehouse are provided with air inlet and air outlet, and test air can pass through specimen test storehouse uniformly, and top, specimen test storehouse is provided with rectangle opening port, opening port is provided with and can opens and the lid sealed.
8. the test unit of a kind of SCR denitration tear strength performance according to claim 1, is characterized in that: described pipeline is carbon structural steels hollow tubular.
9. utilize the test unit of SCR denitration tear strength performance described in claim 1 to carry out the method tested, it is characterized in that comprising the following steps:
Step one, one or more sets test units to be linked into the form of parallel connection on the pipeline of total wind regime, to form the test platform of complete set;
Step 2, computer control system calculate the air quantity required for proving installation automatically, by the air outlet air quantity of monitoring air blower tube road junction end, computer control system regulates the aperture of the butterfly valve of air blower tube road junction end automatically, to meet the air quantity requirement of each proving installation;
Step 3, computer control system record respectively overlap air quantity, wind speed, the tail dirt weight of all time periods in proving installation experimentation, and form diagram file; The sample that user weighs this device contrasts the quality of testing front and back sample in storehouse and specimen test storehouse, and in input computing machine, computer control system calculates the tear strength of this denitrating catalyst sample automatically.
10. test method according to claim 9, it is characterized in that, decline rapidly when computer control system monitors air quantity and wind speed in this proving installation pipeline, after preset value, computer control system is closed butterfly valve automatically, cuts off the air quantity in this proving installation pipeline, computer control system prompting operator seal failure, after operator checks the sealing property of this proving installation, click the reset on software, continue to start test.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106092796A (en) * | 2016-07-28 | 2016-11-09 | 龙净科杰环保技术（上海）有限公司 | It is applicable to polishing machine test equipment and the method for testing of SCR denitration |
| CN106442192A (en) * | 2016-08-27 | 2017-02-22 | 华电电力科学研究院 | Apparatus and method for detecting wear resistance of flue gas denitration catalyst |
| CN106644824A (en) * | 2017-02-08 | 2017-05-10 | 大唐南京环保科技有限责任公司 | Pressure drop test device of SCR (selective catalytic reduction) denitration catalyst |
| CN107462280A (en) * | 2017-08-07 | 2017-12-12 | 苏州西热节能环保技术有限公司 | A kind of SCR denitration abrasion is with blocking up grey diagnostic method |
| CN108106956A (en) * | 2018-01-02 | 2018-06-01 | 苏州西热节能环保技术有限公司 | A kind of adjustable catalyst abrasion strength testing device of incidence angle |
| CN110044754A (en) * | 2019-03-25 | 2019-07-23 | 华电电力科学研究院有限公司 | A kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method |
| CN110118701A (en) * | 2019-04-30 | 2019-08-13 | 华电电力科学研究院有限公司 | A kind of Plate-type denitration catalyst adhesion strength detection device and detection method |
| CN110749523A (en) * | 2019-10-16 | 2020-02-04 | 华电电力科学研究院有限公司 | Denitration catalyst abrasion strength detection device and working method thereof |
| CN113358510A (en) * | 2021-05-14 | 2021-09-07 | 华电电力科学研究院有限公司 | Denitration catalyst wear resistance evaluation device and test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106092796A (en) * | 2016-07-28 | 2016-11-09 | 龙净科杰环保技术（上海）有限公司 | It is applicable to polishing machine test equipment and the method for testing of SCR denitration |
| CN106442192A (en) * | 2016-08-27 | 2017-02-22 | 华电电力科学研究院 | Apparatus and method for detecting wear resistance of flue gas denitration catalyst |
| CN106644824A (en) * | 2017-02-08 | 2017-05-10 | 大唐南京环保科技有限责任公司 | Pressure drop test device of SCR (selective catalytic reduction) denitration catalyst |
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| CN107462280A (en) * | 2017-08-07 | 2017-12-12 | 苏州西热节能环保技术有限公司 | A kind of SCR denitration abrasion is with blocking up grey diagnostic method |
| CN108106956A (en) * | 2018-01-02 | 2018-06-01 | 苏州西热节能环保技术有限公司 | A kind of adjustable catalyst abrasion strength testing device of incidence angle |
| CN110044754A (en) * | 2019-03-25 | 2019-07-23 | 华电电力科学研究院有限公司 | A kind of wear-resistant experimental provision of honeycomb type denitrification catalyst and experimental method |
| CN110044754B (en) * | 2019-03-25 | 2023-11-24 | 华电电力科学研究院有限公司 | Honeycomb denitration catalyst abrasion resistance experimental device and experimental method |
| CN110118701A (en) * | 2019-04-30 | 2019-08-13 | 华电电力科学研究院有限公司 | A kind of Plate-type denitration catalyst adhesion strength detection device and detection method |
| CN110749523A (en) * | 2019-10-16 | 2020-02-04 | 华电电力科学研究院有限公司 | Denitration catalyst abrasion strength detection device and working method thereof |
| CN113358510A (en) * | 2021-05-14 | 2021-09-07 | 华电电力科学研究院有限公司 | Denitration catalyst wear resistance evaluation device and test method |
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Application publication date: 20160511 |