CN207600810U - A kind of multidraw mechanism for CEMS systems - Google Patents
A kind of multidraw mechanism for CEMS systems Download PDFInfo
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- CN207600810U CN207600810U CN201721881348.1U CN201721881348U CN207600810U CN 207600810 U CN207600810 U CN 207600810U CN 201721881348 U CN201721881348 U CN 201721881348U CN 207600810 U CN207600810 U CN 207600810U
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Abstract
The utility model discloses a kind of multidraw mechanisms for CEMS systems, and including several sampling channels, the sampling channel comes together in mixed air vessel, mixed air vessel's linking parsing instrument；The sampling channel includes sampling probe, the sampling probe is located in flue, the interface connection constant temperature heat traced pipeline of the sampling probe, the port of export connection high speed condenser of the constant temperature heat traced pipeline, the high speed condenser is sequentially connected sampling pump and high-accuracy glass spinner flowmeter, and the high-accuracy glass spinner flowmeter connects mixed air vessel.The multidraw mechanism of this structure uses the form of postposition sampling pump, is uniformly mixed the fume extraction of difference position to mixed air vessel using constant temperature heat traced pipeline by acquisition probe.The utility model can accurate practical NO concentration values under reaction denitration operating mode, while can effectively avoid the problem that NO concentration saltus steps cause to discharge exceeded, and financial cost is reduced for proprietor.
Description
Technical field
The utility model is related to denitrating system data monitoring field more particularly to a kind of multidraws for CEMS systems
Mechanism.
Background technology
To prevent from generating excessive NOx pollution environment in boiler after coal combustion, denitration process should be carried out to coal.Denitration process
Method be divided into burning before denitration, combustion process denitration, burning after denitration.CEMS systems are mainly used in monitoring coal-burning power plant and take off
NO under nitre operating modeXConcentration monitor, divided by function, generally by sampling and the subsystems such as pretreatment unit, data acquisition and processing (DAP)
The monitoring system of system composition.The system uses Differential UV spectroscopy gas analyzer as NO analysis meters, using advanced two
Pole pipe array detection, full spectrum analysis, optical fibre transmission techniques can realize the real-time measurement of the multiple gases concentration such as NO（Oxygen
Gas is measured using import electrochemical sensor）, it is widely used in the fields such as industrial process gas analysis system.
And it is current, traditional denitration CEMS samplers are sampled for single-point, i.e., are installed in denitration entrance flue cross section
One single-point smoke sampling probe, extraction fume sample are passed through instrument and carry out analysis measurement.Such sampling mechanism is because of denitration chimney
Or the special operation condition in flue, such as inside, there are swirling air streams, lead to same section NO concentration distributions in erratic behavior, therefore very
More on-line monitoring equipments can not measure effective NO concentration or NO measurement variations, and bounce is greatly soon or measured value inaccuracy does not have
It is representative.
Utility model content
The purpose of this utility model is to solve the deficiencies in the prior art, and it is accurate, closer practical to provide a kind of measurement data
The multidraw mechanism applied to denitration CEMS systems of concentration of emission.
The technical solution adopted in the utility model is：A kind of multidraw mechanism for CEMS systems, including several
Sampling channel, the sampling channel come together in mixed air vessel, mixed air vessel's linking parsing instrument；The sampling channel includes adopting
Sample is popped one's head in, and the sampling probe is located in flue, the interface connection constant temperature heat traced pipeline of the sampling probe, the constant temperature companion
The port of export connection high speed condenser of hot pipeline, the high speed condenser are sequentially connected sampling pump and high-accuracy glass spinner
Meter, the high-accuracy glass spinner flowmeter connect mixed air vessel.
As further improvement of the utility model, the sampling probe is furnished with recoiling device.
The utility model use advantageous effect be：The multidraw mechanism of this structure uses the form of postposition sampling pump,
The fume extraction of difference position is uniformly mixed to mixed air vessel using constant temperature heat traced pipeline by acquisition probe.This reality
With it is novel being capable of accurately practical NO concentration values under reaction denitration operating mode, while NO concentration saltus steps can effectively be avoided to cause discharge super
Target problem reduces financial cost for proprietor.
Description of the drawings
Fig. 1 is utility model diagram.
Shown in figure：1 sampling probe, 2 constant temperature heat traced pipelines, 3 high speed condensers, 4 sampling pumps, 5 high-accuracy glass
Spinner flowmeter, 6 mixed air vessel, 7 analyzers.
Specific embodiment
With reference to Fig. 1, the utility model is described further.
As shown in Figure 1, a kind of multidraw mechanism for CEMS systems, including several sampling channels, the sampling
Channel comes together in mixed air vessel 6, the 6 linking parsing instrument 7 of mixed air vessel；The sampling channel includes sampling probe 1, described to adopt
Sample probe 1 is located in flue, the interface connection constant temperature heat traced pipeline 2 of the sampling probe 1, the constant temperature heat traced pipeline 2
The port of export connects high speed condenser 3, and the high speed condenser 3 is sequentially connected sampling pump 4 and high-accuracy glass spinner flowmeter 5,
The high-accuracy glass spinner flowmeter 5 connects mixed air vessel 6.
To ensure the detection accuracy of the utility model, the sampling probe 1 is furnished with recoiling device, so as to which clean sampling is visited
Head, it is ensured that the precision of detection.
Embodiment 1, by sampling probe A, sampling probe B, sampling probe C be fixed on 3 of denitration flue or chimney it is corresponding
Point position fix, 3 suitable length constant temperature heat traced pipelines 2 are connected to sampling probe A, sampling probe B, sampling probe C
It is fixed at connector.2 port of export of constant temperature heat traced pipeline for completing connection is connected to 3 entrance of high speed condenser, then sequence successively
Sampling pump 4, high-accuracy glass spinner flowmeter 5, mixed air vessel 6 are connected, is finally connected to analyzer 7.It is visited by the sampling of 3 points
Sample gas in mixed air vessel 6 is uniformly mixed, is then analyzed with analyzer by head sampling after treatment, so as to most true
Representative NO measured values in reaction denitration flue.High-accuracy glass spinner flowmeter carries out flow-rate adjustment, realizes accurate
Control, so as to enter the indoor ingredient of gaseous mixture uniform for flue gas.The heating temperature of constant temperature heat traced pipeline is 200 °C, so as to
Ensure that the flue gas drying of sampling probe acquisition does not generate loss.
The multidraw mechanism of this structure uses the form of postposition sampling pump, by acquisition probe using constant temperature heat tracing pipe
Line is uniformly mixed the fume extraction of difference position to mixed air vessel.The utility model can be accurately under reaction denitration operating mode
Practical NO concentration values, at the same can effectively avoid the problem that NO concentration saltus steps cause to discharge it is exceeded, for proprietor reduce it is economical into
This.
Those skilled in the art may be used also it is to be understood that the protection scheme of the utility model is not limited only to the above embodiments
To carry out various permutation and combination and transformation on the basis of above-described embodiment, without departing from the spirit of the present invention,
The various transformation carried out to the utility model are all fallen in the scope of protection of the utility model.
Claims (2)
1. a kind of multidraw mechanism for CEMS systems, it is characterized in that including several sampling channels, the sampling channel
Come together in mixed air vessel（6）, the mixed air vessel（6）Linking parsing instrument（7）；The sampling channel includes sampling probe（1）, institute
State sampling probe（1）In flue, the sampling probe（1）Interface connection constant temperature heat traced pipeline（2）, the constant temperature companion
Hot pipeline（2）The port of export connection high speed condenser（3）, the high speed condenser（3）It is sequentially connected sampling pump（4）And high-precision
Glass rotameter（5）, the high-accuracy glass spinner flowmeter（5）Connect mixed air vessel（6）.
2. a kind of multidraw mechanism for CEMS systems according to claim 1, it is characterized in that the sampling probe
（1）Equipped with recoiling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881348.1U CN207600810U (en) | 2017-12-28 | 2017-12-28 | A kind of multidraw mechanism for CEMS systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881348.1U CN207600810U (en) | 2017-12-28 | 2017-12-28 | A kind of multidraw mechanism for CEMS systems |
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| CN207600810U true CN207600810U (en) | 2018-07-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141992A (en) * | 2018-10-16 | 2019-01-04 | 华北电力大学（保定） | Hydrogen sulfate ammonia sampling apparatus and method based on control condensation method |
| CN109612789A (en) * | 2019-01-11 | 2019-04-12 | 武汉理工大学 | A kind of multidraw mechanism for marine engine exhaust gas cleaner |
| CN110823652A (en) * | 2019-12-13 | 2020-02-21 | 重庆威巴仪器有限责任公司 | Differential pressure type self-backflow multipoint uniform flue gas sampling system |
| CN113567203A (en) * | 2021-07-28 | 2021-10-29 | 国能濮阳热电有限公司 | Flue gas measuring device |
-
2017
- 2017-12-28 CN CN201721881348.1U patent/CN207600810U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141992A (en) * | 2018-10-16 | 2019-01-04 | 华北电力大学（保定） | Hydrogen sulfate ammonia sampling apparatus and method based on control condensation method |
| CN109612789A (en) * | 2019-01-11 | 2019-04-12 | 武汉理工大学 | A kind of multidraw mechanism for marine engine exhaust gas cleaner |
| CN110823652A (en) * | 2019-12-13 | 2020-02-21 | 重庆威巴仪器有限责任公司 | Differential pressure type self-backflow multipoint uniform flue gas sampling system |
| CN113567203A (en) * | 2021-07-28 | 2021-10-29 | 国能濮阳热电有限公司 | Flue gas measuring device |
| CN113567203B (en) * | 2021-07-28 | 2024-03-05 | 国能濮阳热电有限公司 | Flue gas measuring device |
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