CN107632119A - Comparison device and its application method for the escaping of ammonia measuring instrument - Google Patents
Comparison device and its application method for the escaping of ammonia measuring instrument Download PDFInfo
- Publication number
- CN107632119A CN107632119A CN201710900523.5A CN201710900523A CN107632119A CN 107632119 A CN107632119 A CN 107632119A CN 201710900523 A CN201710900523 A CN 201710900523A CN 107632119 A CN107632119 A CN 107632119A
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- China
- Prior art keywords
- filter
- temperature
- escaping
- angle valve
- measuring instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 41
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000003780 insertion Methods 0.000 claims abstract 2
- 230000037431 insertion Effects 0.000 claims abstract 2
- 239000003292 glue Substances 0.000 claims description 10
- 239000011152 fibreglass Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 2
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005343 cylinder glass Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention provides the comparison device and its application method for the escaping of ammonia measuring instrument, wherein comparison device includes smoke sampling bar, compare branch road thief rod, filter, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit, in smoke sampling bar insertion flue, smoke sampling bar, compare branch road thief rod, filter is sequentially connected, the entrance of the outlet connection three-way connection of filter, the Common Exported connection smoke dust sampler of three-way connection, the free export connection aspiration pump of three-way connection, the electromagnetism angle valve is set between free export and aspiration pump；One end sealing welding of temperature thermocouple enters inside filter, for measuring the flue-gas temperature by filter；Thermometric control unit wireless connection temperature thermocouple, electromagnetism angle valve and smoke dust sampler, for temperature control electromagnetism angle valve and the smoke dust sampler work measured according to temperature thermocouple.The present invention solves the problems, such as that the escaping of ammonia measuring instrument can not regular its accuracy of comparison.
Description
Technical field
The present invention relates to detection technique field, and in particular to comparison device and its user for the escaping of ammonia measuring instrument
Method.
Background technology
SNCR (SNCR) and SCR (SCR) are the main sides for carrying out denitrating flue gas
Method.In order to monitor SNCR and SCR running status whether normal need on-line monitoring flue gas in NH3 content.
In correlation technique, the on-line monitoring of NH3 contents in flue gas is carried out frequently with the escaping of ammonia measuring instrument, due to the escaping of ammonia
Measuring instrument extracts the stronger flue gas of corrosivity for a long time, and NH3 contents are relatively low in flue gas, cause output measurement result it is accurate
Property it is poor, it is necessary to the escaping of ammonia measuring instrument carry out testing calibration.
Convenient and reliable technical method is lacked to the testing calibration of the escaping of ammonia measuring instrument at present, power plant technical staff can not
The marked ratio pair of this common method progress the escaping of ammonia measuring instrument, the escaping of ammonia monitor are compared by gas in routine duties
The accuracy of table can not be verified and calibrated in routine duties.
The content of the invention
In view of the above-mentioned problems, the present invention is provided to the comparison device of the escaping of ammonia measuring instrument and its application method.
The purpose of the present invention is realized using following technical scheme：
Provide a kind of comparison device for the escaping of ammonia measuring instrument, including smoke sampling bar, compare branch road thief rod,
Filter, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit, smoke sampling bar are inserted in flue, flue gas
The part that thief rod exposes flue sets two outlets, connects the escaping of ammonia measuring instrument respectively, compares branch road thief rod, the mistake
Filter device entrance connection compare branch road thief rod, filter outlet connection three-way connection entrance, three-way connection it is general
Pass-out mouth connects a smoke dust sampler, and the free export of three-way connection connects an aspiration pump, free export and aspiration pump it
Between the electromagnetism angle valve is set；One end sealing welding of the temperature thermocouple enters inside filter, passes through for measuring
Filter the flue-gas temperature of device；Thermometric control unit wireless connection temperature thermocouple, electromagnetism angle valve and smoke dust sampler, for basis
The temperature control electromagnetism angle valve of temperature thermocouple measurement and smoke dust sampler work.
Preferably, described filter goes out including ultra-fine fibre glass without glue filter cylinder, ultra-fine fibre glass without glue filter cylinder
The perforate for inserting temperature thermocouple, temperature thermocouple and aperture perimeters sealing welding are offered on the space barrel of mouth, should
One porous barrier is set in the barrel of space, for afterbody of the support superfine glass fibre without glue filter cylinder and inside filter
One is separated out to insert the space of temperature thermocouple.
Preferably, the outer surface of described smoke sampling bar is provided with the muff that can be resistant to 200 DEG C.
Further, the free export of the three-way connection is nearby fixedly installed one and places two 250ml for stable
The support of bubble absorption bottle.
Present invention also offers the application method for the comparison device, following steps are specifically included：
S1 installs filtration core in filter, and two bubble sampling bottles that absorbing liquid is housed are placed on support,
And it is connected with smoke dust sampler；
S2 opens aspiration pump, and thermometric control unit detects flue-gas temperature by temperature thermocouple, is set when flue-gas temperature reaches
Temperature control unit sends control signal during fixed temperature threshold, opens electromagnetism angle valve, then starts smoke dust sampler, flue dust is adopted
Stop after sample instrument operation setting time section, close electromagnetism angle valve；
S3 closes aspiration pump, records sampling amount；
S4 samplings terminate, and withdraw bubble sampling bottle, and carry out assay according to related code.
Wherein, the ammonia slip data of the escaping of ammonia measuring instrument is continuously recorded while sampling, then with changing in laboratory
Test the ammonia slip data comparison for calculating gained.It is reliable in order to compare, it can carry out repeatedly comparing and be verified.
Beneficial effects of the present invention are：The comparison device for the escaping of ammonia measuring instrument of the present invention is realized to the escaping of ammonia
The testing calibration of measuring instrument, device installation is simple, easy to use.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
The structure connection diagram of Fig. 1 one embodiment of the invention；
Fig. 2 is the enlarged diagram that the filter of one embodiment of the invention and temperature thermocouple are connected.
Reference：
Smoke sampling bar 1, compare branch road thief rod 2, filter 3, temperature thermocouple 4, three-way connection 5, electromagnetism angle valve
6th, thermometric control unit 7, smoke dust sampler 8, aspiration pump 9, muff 10, support 11, perforate 12, porous barrier 13.
Embodiment
The invention will be further described with the following Examples.
The comparison device for the escaping of ammonia measuring instrument provided referring to Fig. 1, the present embodiment, including smoke sampling bar, ratio
To branch road thief rod, filter, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit, smoke sampling bar is inserted
Enter in flue, the part that smoke sampling bar exposes flue sets two outlets, connects the escaping of ammonia measuring instrument respectively, compares branch road
Thief rod, the entrance connection of the filter compare branch road thief rod, and the outlet of filter connects the entrance of three-way connection,
The Common Exported of three-way connection connects a smoke dust sampler, and the free export of three-way connection connects an aspiration pump, freely gone out
The electromagnetism angle valve is set between mouth and aspiration pump；One end sealing welding of the temperature thermocouple enters inside filter, uses
Flue-gas temperature in measurement by filter；Thermometric control unit wireless connection temperature thermocouple, electromagnetism angle valve and flue dust are adopted
Sample instrument, for temperature control electromagnetism angle valve and the smoke dust sampler work measured according to temperature thermocouple.
When the temperature measured of temperature thermocouple is higher than the temperature threshold set, thermometric control unit control electromagnetism angle
Valve is opened, and starts smoke dust sampler, and smoke dust sampler is automatically stopped after extracting the flue gas of setting time and records extraction flue gas
After amount, thermometric control unit control electromagnetism angle valve is closed.
In above-described embodiment, restart smoke dust sampler after flue-gas temperature is higher than certain temperature and be sampled, and
Smoke dust sampler needs to record the quantity of sampling.The setting of aspiration pump so that pipeline can be preheated before smoke dust sampler is started,
Sample temperature is reached, reduces sampling error.In sampling, the aspiration pump guarantee of work simultaneously pipeline being capable of big flow in addition
Continuous heating, smoke dust sampler flow low pipeline during sampling is avoided to cool too fast the problem of not reaching sample temperature.
As a preferred embodiment, the temperature threshold set is 150 DEG C.
In one embodiment, the free export of three-way connection is nearby fixedly installed one and places two for stable
The support of 250ml bubble absorption bottles.During practical operation, it can be put in the free export suitable position selected around of three-way connection
Put the support.
In one embodiment, the outer surface of described smoke sampling bar is provided with the muff that can be resistant to 200 DEG C.
In one embodiment, it is ultra-fine as shown in Fig. 2 described filter includes ultra-fine fibre glass without glue filter cylinder
Glass fibre offers the perforate for inserting temperature thermocouple on the space barrel without glue cartridge outlet, temperature thermocouple is with opening
Hole peripheral sealing welding, the space barrel is interior to set a porous barrier, for tail of the support superfine glass fibre without glue filter cylinder
Portion is simultaneously separated out one to insert the space of temperature thermocouple inside filter.Preferably, the ultra-fine fibre glass without
A diameter of 28mm of glue filter cylinder, length 70mm.
In one embodiment, described comparison branch road thief rod is to be threadedly coupled with the connected mode of filter, from
And facilitate filter dismounting and change filter core.
When using the comparison device of above-described embodiment, filtration core is installed in filter 3, is placed on support 11
Two are equipped with the bubble sampling bottle of absorbing liquid, and are connected with smoke dust sampler.Aspiration pump 9 is opened, thermometric control unit 7 passes through survey
Warm galvanic couple 4 and detect flue-gas temperature, temperature control unit 7 sends control letter when flue-gas temperature reaches the temperature threshold of setting
Number, electromagnetism angle valve 6 is opened, then starts smoke dust sampler 8, smoke dust sampler 8 stops after running a period of time, closes electromagnetism angle
Valve 6, close aspiration pump 9.Sampling terminates, and samples personnel record's sampling amount, withdraws bubble sampling bottle according to related code
Test analysis.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (5)
1. for the comparison device and its application method of the escaping of ammonia measuring instrument, it is characterized in that, including smoke sampling bar, comparison branch
Road thief rod, filter, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit, smoke sampling bar insertion cigarette
In road, the part that smoke sampling bar exposes flue sets two outlets, connects the escaping of ammonia measuring instrument respectively, compares branch road sampling
Bar, the entrance connection of the filter compare branch road thief rod, the entrance of the outlet connection three-way connection of filter, threeway
The Common Exported of joint connects a smoke dust sampler, and the free export of three-way connection connects an aspiration pump, free export and
The electromagnetism angle valve is set between aspiration pump；One end sealing welding of the temperature thermocouple enters inside filter, for surveying
Amount passes through the flue-gas temperature of filter；Thermometric control unit wireless connection temperature thermocouple, electromagnetism angle valve and smoke dust sampler,
For temperature control electromagnetism angle valve and the smoke dust sampler work measured according to temperature thermocouple.
2. the comparison device according to claim 1 for the escaping of ammonia measuring instrument, it is characterized in that, the freedom of three-way connection
Near exit is fixedly installed one and is used for the stable support for placing two 250ml bubble absorption bottles.
3. the comparison device according to claim 1 for the escaping of ammonia measuring instrument, it is characterized in that, described filter
Including ultra-fine fibre glass without glue filter cylinder, ultra-fine fibre glass offers on the space barrel without glue cartridge outlet to be surveyed for inserting
The perforate of galvanic couple, temperature thermocouple and aperture perimeters sealing welding are warmed, a porous barrier is set in the space barrel, is used for
Afterbody of the support superfine glass fibre without glue filter cylinder is simultaneously separated out one to insert the sky of temperature thermocouple inside filter
Between.
4. the comparison device according to claim 1 for the escaping of ammonia measuring instrument, it is characterized in that, described smoke sampling
The outer surface of bar is provided with the muff that can be resistant to 200 DEG C.
5. the application method of comparison device according to claim 2, it is characterized in that, comprise the following steps：
S1 installs filtration core in filter, placed on support two be equipped with absorbing liquid bubble sampling bottles, and with
Smoke dust sampler connects；
S2 opens aspiration pump, and thermometric control unit detects flue-gas temperature by temperature thermocouple, when flue-gas temperature reaches setting
Temperature control unit sends control signal during temperature threshold, opens electromagnetism angle valve, then starts smoke dust sampler, smoke dust sampler
Stop after operation setting time section, close electromagnetism angle valve；
S3 closes aspiration pump, records sampling amount；
S4 samplings terminate, and withdraw bubble sampling bottle, and carry out assay according to related code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900523.5A CN107632119B (en) | 2017-09-28 | 2017-09-28 | Comparison device for ammonia escape monitoring instrument and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900523.5A CN107632119B (en) | 2017-09-28 | 2017-09-28 | Comparison device for ammonia escape monitoring instrument and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107632119A true CN107632119A (en) | 2018-01-26 |
| CN107632119B CN107632119B (en) | 2024-04-12 |
Family
ID=61101816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710900523.5A Active CN107632119B (en) | 2017-09-28 | 2017-09-28 | Comparison device for ammonia escape monitoring instrument and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107632119B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180960U (en) * | 2012-11-01 | 2013-01-17 | 株式会社島津製作所 | Flue exhaust gas analyzer |
| EP2564915A1 (en) * | 2011-08-30 | 2013-03-06 | Alstom Technology Ltd | Absorber for capturing CO2 in ammoniated solution |
| US20130276515A1 (en) * | 2012-04-23 | 2013-10-24 | Steag Powitec Gmbh | Measuring device for dust in flue gas |
| CN203941097U (en) * | 2014-03-25 | 2014-11-12 | 南京霍普斯科技有限公司 | The high warm wet flue gas on-line monitoring system of a kind of extraction-type |
| CN204116274U (en) * | 2014-11-10 | 2015-01-21 | 深圳泽峰环保技术有限公司 | The escaping of ammonia on-line monitoring analytical instrument |
| CN104458869A (en) * | 2014-11-10 | 2015-03-25 | 深圳泽峰环保技术有限公司 | Online ammonia escape monitoring and analyzing method and online ammonia escape monitoring and analyzing instrument |
| CN204679474U (en) * | 2015-04-22 | 2015-09-30 | 国家电网公司 | A kind of device measuring escape ammonia concentration in equipment for denitrifying flue gas |
| CN105181902A (en) * | 2015-09-30 | 2015-12-23 | 华电电力科学研究院 | Device and method for measuring ammonia escape concentration on line on basis of liquid absorption method |
| CN105509500A (en) * | 2016-01-08 | 2016-04-20 | 山东泓奥电力科技有限公司 | Air cooling island antifreezing flow control system |
| CN205263026U (en) * | 2015-11-25 | 2016-05-25 | 河北涿州京源热电有限责任公司 | A two calibrating device of on -line monitoring that is used for boiler flue gas ammonia escape concentration detection |
| US20160169784A1 (en) * | 2014-12-11 | 2016-06-16 | Michael A. Smith | Particulate matter filter diagnostic techniques based on exhaust gas analysis |
| CN106526092A (en) * | 2016-12-27 | 2017-03-22 | 吉林省电力科学研究院有限公司 | Automatic calibration system for ammonia escape |
| CN207301018U (en) * | 2017-09-28 | 2018-05-01 | 华电新疆发电有限公司乌鲁木齐热电厂 | Comparison device for the escaping of ammonia measuring instrument |
-
2017
- 2017-09-28 CN CN201710900523.5A patent/CN107632119B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2564915A1 (en) * | 2011-08-30 | 2013-03-06 | Alstom Technology Ltd | Absorber for capturing CO2 in ammoniated solution |
| US20130276515A1 (en) * | 2012-04-23 | 2013-10-24 | Steag Powitec Gmbh | Measuring device for dust in flue gas |
| JP3180960U (en) * | 2012-11-01 | 2013-01-17 | 株式会社島津製作所 | Flue exhaust gas analyzer |
| CN203941097U (en) * | 2014-03-25 | 2014-11-12 | 南京霍普斯科技有限公司 | The high warm wet flue gas on-line monitoring system of a kind of extraction-type |
| CN204116274U (en) * | 2014-11-10 | 2015-01-21 | 深圳泽峰环保技术有限公司 | The escaping of ammonia on-line monitoring analytical instrument |
| CN104458869A (en) * | 2014-11-10 | 2015-03-25 | 深圳泽峰环保技术有限公司 | Online ammonia escape monitoring and analyzing method and online ammonia escape monitoring and analyzing instrument |
| US20160169784A1 (en) * | 2014-12-11 | 2016-06-16 | Michael A. Smith | Particulate matter filter diagnostic techniques based on exhaust gas analysis |
| CN204679474U (en) * | 2015-04-22 | 2015-09-30 | 国家电网公司 | A kind of device measuring escape ammonia concentration in equipment for denitrifying flue gas |
| CN105181902A (en) * | 2015-09-30 | 2015-12-23 | 华电电力科学研究院 | Device and method for measuring ammonia escape concentration on line on basis of liquid absorption method |
| CN205263026U (en) * | 2015-11-25 | 2016-05-25 | 河北涿州京源热电有限责任公司 | A two calibrating device of on -line monitoring that is used for boiler flue gas ammonia escape concentration detection |
| CN105509500A (en) * | 2016-01-08 | 2016-04-20 | 山东泓奥电力科技有限公司 | Air cooling island antifreezing flow control system |
| CN106526092A (en) * | 2016-12-27 | 2017-03-22 | 吉林省电力科学研究院有限公司 | Automatic calibration system for ammonia escape |
| CN207301018U (en) * | 2017-09-28 | 2018-05-01 | 华电新疆发电有限公司乌鲁木齐热电厂 | Comparison device for the escaping of ammonia measuring instrument |
Non-Patent Citations (1)
| Title |
|---|
| 王义;张涛;: "乌鲁木齐热电厂中水处理系统工艺改造及运行优化", 华电技术, no. 03 * |
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| Publication number | Publication date |
|---|---|
| CN107632119B (en) | 2024-04-12 |
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