CN207301018U - Comparison device for the escaping of ammonia measuring instrument - Google Patents
Comparison device for the escaping of ammonia measuring instrument Download PDFInfo
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- CN207301018U CN207301018U CN201721259720.5U CN201721259720U CN207301018U CN 207301018 U CN207301018 U CN 207301018U CN 201721259720 U CN201721259720 U CN 201721259720U CN 207301018 U CN207301018 U CN 207301018U
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- escaping
- filtration apparatus
- measuring instrument
- connection
- angle valve
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Abstract
The utility model provides the comparison device for the escaping of ammonia measuring instrument, including smoke sampling bar, compare branch thief rod, filtration apparatus, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit, in smoke sampling bar insertion flue, smoke sampling bar, comparison branch thief rod, filtration apparatus are sequentially connected, the entrance of the outlet connection three-way connection of filtration apparatus, the Common Exported connection smoke dust sampler of three-way connection, the free export connection aspiration pump of three-way connection, sets the electromagnetism angle valve between free export and aspiration pump；One end sealing welding of temperature thermocouple enters inside filtration apparatus, for measuring the flue-gas temperature by filtration apparatus；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 utility model solves the problems, such as that the escaping of ammonia measuring instrument can not regular its accuracy of comparison.
Description
Technical field
It the utility model is related to detection technique field, and in particular to the comparison device for the escaping of ammonia measuring instrument.
Background technology
Selective non-catalytic reduction (SNCR) and selective catalytic reduction (SCR) are the main sides for carrying out denitrating flue gas
Method.In order to monitor the operating status of SNCR and SCR 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 is poor, it is necessary to is detected calibration to the escaping of ammonia measuring instrument.
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 standard gas in routine duties
The accuracy of table can not be verified and calibrated in routine duties.
Utility model content
In view of the above-mentioned problems, the utility model provides the comparison device for the escaping of ammonia measuring instrument.
The purpose of this utility model 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 thief rod,
Filtration apparatus, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit, smoke sampling bar are inserted into flue, flue gas
The part that thief rod exposes flue sets two outlets, connects the escaping of ammonia measuring instrument respectively, compares branch thief rod, the mistake
Filter device entrance connection compare branch thief rod, filtration apparatus 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 filtration apparatus, 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, the filtration apparatus goes out including ultra-fine fibre glass without glue filter cylinder, ultra-fine fibre glass without glue filter cylinder
The perforate for being inserted into 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, is used to support afterbody of the ultra-fine fibre glass without glue filter cylinder and inside filtration apparatus
One is separated out to be inserted into the space of temperature thermocouple.
Preferably, the outer surface of the smoke sampling bar is equipped 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 is used to stablize two 250ml of placement
The stent of bubble absorption bottle.
During using the comparison device, filtration core is installed in filtration apparatus, two are placed on stent equipped with absorption
The bubble sampling bottle of liquid, and be connected with smoke dust sampler；Aspiration pump is opened, thermometric control unit detects cigarette by temperature thermocouple
Temperature degree, when flue-gas temperature reaches the temperature threshold of setting, temperature control unit sends control signal, opens electromagnetism angle valve, so
After start smoke dust sampler, stop after smoke dust sampler operation set period of time, close electromagnetism angle valve, be then shut off aspiration pump,
Record sampling amount；Sampling terminates, and withdraws 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.
The beneficial effects of the utility model are：The comparison device for the escaping of ammonia measuring instrument of the utility model realizes
To the testing calibration of the escaping of ammonia measuring instrument, device installation is simple, easy to use.
Brief description of the drawings
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not formed to the utility model
Any restrictions, without creative efforts, can also be according to following attached for those of ordinary skill in the art
Figure obtains other attached drawings.
The structure connection diagram of Fig. 1 the utility model one embodiment；
Fig. 2 is the enlarged diagram that the filtration apparatus of the utility model one embodiment and temperature thermocouple are connected.
Reference numeral：
Smoke sampling bar 1, compare branch thief rod 2, filtration apparatus 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, stent 11, perforate 12, porous barrier 13.
Embodiment
The utility model is further described with the following Examples.
Referring to Fig. 1, the comparison device provided in this embodiment for the escaping of ammonia measuring instrument, including smoke sampling bar, ratio
To branch thief rod, filtration apparatus, 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
Thief rod, the entrance connection of the filtration apparatus compare branch thief rod, and the outlet of filtration apparatus 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 goes out
The electromagnetism angle valve is set between mouth and aspiration pump；One end sealing welding of the temperature thermocouple enters inside filtration apparatus, uses
Flue-gas temperature in measurement by filtration apparatus；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 addition in sampling, aspiration pump works at the same time and ensure that pipeline being capable of big flow
Continuous heating, the low pipeline cooling of smoke dust sampler flow is too fast when avoiding the problem that sampling does not reach 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 is used to stablize placement two
The stent 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 stent.
In one embodiment, the outer surface of the smoke sampling bar is equipped with the muff that can be resistant to 200 DEG C.
In one embodiment, it is ultra-fine as shown in Fig. 2, the filtration apparatus includes ultra-fine fibre glass without glue filter cylinder
Glass fibre offers the perforate for being inserted into 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, is used to support tail of the ultra-fine fibre glass without glue filter cylinder
Portion is simultaneously separated out one to be inserted into the space of temperature thermocouple inside filtration apparatus.Preferably, the ultra-fine fibre glass without
A diameter of 28mm of glue filter cylinder, length 70mm.
In one embodiment, the comparison branch thief rod is to be threadedly coupled with the connection mode of filtration apparatus, from
And facilitate filtration apparatus dismounting and change filter core.
When using the comparison device of above-described embodiment, filtration core is installed in filtration apparatus 3, is placed on stent 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, closes 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 above example is only illustrating the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general
Lead to it will be appreciated by the skilled person that can be to the technical solution of the utility model technical scheme is modified or replaced equivalently, without departing from this
The spirit and scope of utility model technical solution.
Claims (4)
1. for the comparison device of the escaping of ammonia measuring instrument, it is characterized in that, including smoke sampling bar, comparison branch thief rod, mistake
Device, temperature thermocouple, three-way connection, electromagnetism angle valve, thermometric control unit are filtered, smoke sampling bar is inserted into flue, and flue gas takes
The part that sample bar exposes flue sets two outlets, connects the escaping of ammonia measuring instrument respectively, compares branch thief rod, the filtering
Device entrance connection compare branch thief rod, filtration apparatus outlet connection three-way connection entrance, three-way connection it is common
One smoke dust sampler of outlet connection, the free export of three-way connection connects an aspiration pump, between free export and aspiration pump
The electromagnetism angle valve is set；One end sealing welding of the temperature thermocouple enters inside filtration apparatus, for measuring by filtering
The flue-gas temperature of device；Thermometric control unit wireless connection temperature thermocouple, electromagnetism angle valve and smoke dust sampler, for according to survey
Temperature control electromagnetism angle valve and the smoke dust sampler work of warm thermocouple measurement.
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 to stablize the stent 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, the filtration apparatus
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 being inserted into
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 be inserted into the sky of temperature thermocouple inside filtration apparatus
Between.
4. the comparison device according to claim 1 for the escaping of ammonia measuring instrument, it is characterized in that, the smoke sampling
The outer surface of bar is equipped with the muff that can be resistant to 200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259720.5U CN207301018U (en) | 2017-09-28 | 2017-09-28 | Comparison device for the escaping of ammonia measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721259720.5U CN207301018U (en) | 2017-09-28 | 2017-09-28 | Comparison device for the escaping of ammonia measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301018U true CN207301018U (en) | 2018-05-01 |
Family
ID=62440213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721259720.5U Expired - Fee Related CN207301018U (en) | 2017-09-28 | 2017-09-28 | Comparison device for the escaping of ammonia measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632119A (en) * | 2017-09-28 | 2018-01-26 | 华电新疆发电有限公司乌鲁木齐热电厂 | Comparison device and its application method for the escaping of ammonia measuring instrument |
| CN111982611A (en) * | 2020-08-12 | 2020-11-24 | 北京国电龙源环保工程有限公司 | Online detection device and detection method for ammonia in flue gas |
-
2017
- 2017-09-28 CN CN201721259720.5U patent/CN207301018U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632119A (en) * | 2017-09-28 | 2018-01-26 | 华电新疆发电有限公司乌鲁木齐热电厂 | Comparison device and its application method for the escaping of ammonia measuring instrument |
| CN107632119B (en) * | 2017-09-28 | 2024-04-12 | 华电新疆发电有限公司乌鲁木齐热电厂 | Comparison device for ammonia escape monitoring instrument and application method thereof |
| CN111982611A (en) * | 2020-08-12 | 2020-11-24 | 北京国电龙源环保工程有限公司 | Online detection device and detection method for ammonia in flue gas |
| CN111982611B (en) * | 2020-08-12 | 2021-08-24 | 国能龙源环保有限公司 | Online detection device and detection method for ammonia in flue gas |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20180928 |