CN218823468U - Switchable longitudinal multipoint sampling device based on dilution method - Google Patents
Switchable longitudinal multipoint sampling device based on dilution method Download PDFInfo
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- CN218823468U CN218823468U CN202222503331.XU CN202222503331U CN218823468U CN 218823468 U CN218823468 U CN 218823468U CN 202222503331 U CN202222503331 U CN 202222503331U CN 218823468 U CN218823468 U CN 218823468U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a changeable vertical multiple spot sampling device based on dilution method, on sampling probe, the last sampling probe pole that installs of sampling probe pole one, sampling probe pole two, sampling probe pole three and sampling probe pole four, sampling probe pole one, sampling probe pole two, the length depth of sampling probe pole three and sampling probe pole four is different, sampling probe pole one, sampling probe pole two, sampling probe pole three and sampling probe pole four's sampling point interval is the same, outside the flue, still including diluting the module, the position before diluting the module is provided with the sampling depth diverter valve, sampling probe pole one is connected to the air inlet of the same kind of sampling depth diverter valve, sampling probe pole two is connected to the two-way air inlet, sampling probe pole three is connected to the three-way air inlet, sampling probe pole four is connected to the four-way air inlet, the connector connection of giving vent to anger is to dilute the module. The utility model discloses a set up sample probe rod one, sample probe rod two, sample probe rod three, sample probe rod four and the depth of sample diverter valve, realize the multiple spot sample of the different degree of depth of unified sample connection.
Description
Technical Field
The utility model belongs to the technical field of the denitration environmental protection of power plant, specificly relate to a changeable vertical multiple spot sampling device based on dilution method.
Background
At present, two common methods are available for measuring and sampling nitrogen oxides at a denitration outlet in a subarea mode. Firstly, a plurality of areas are divided, and each sampling probe is provided with a sampling point in a flue, so that linear subarea sampling can be realized; secondly, a plurality of sampling points are designed on each dilution probe, and the sampling duration is ensured to be the same by controlling the caliber size of the sampling points and the length of the sampling pipeline, so that grid sampling of the same section of the flue is realized.
Each sampling probe is provided with a sampling point in the flue, so that the sampling depth is relatively limited in a way of realizing linear subarea sampling, and the distribution condition of nitrogen oxides on the section of the whole flue cannot be reflected; the mode of designing a plurality of sampling point grids on each dilution probe for sampling is only to judge the flue gas sampling amount of each sampling point through theoretical calculation, the consistency of the flue gas amount of each sampling point cannot be ensured, and the measured data is inconsistent with the real concentration distribution of a flue interface to a great extent, so that the measurement authenticity is influenced.
In order to solve the above problems, the present invention is proposed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a changeable vertical multiple spot sampling device based on dilution method realizes that environmental protection trade denitration outlet carbon oxide subregion is measured.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a changeable vertical multiple spot sampling device based on dilution method, on the sampling probe, install sample probe one on the sampling probe, sample probe two, sample probe three and sample probe four, sample probe one, sample probe two, the length depth of sample probe three and sample probe four is not equal, sample probe one, sample probe two, sample probe three and the sample probe four sampling point interval is the same, outside the flue, still including diluting the module, the position before diluting the module is provided with the sample depth diverter valve, sample probe one is connected to the air inlet of the same way of sample depth diverter valve, sample probe two is connected to the two-way air inlet, sample probe three is connected to the three-way air inlet, four-way air inlet connection sample probe four, the connector connection of giving vent to anger is to diluting the module.
Preferably, the sampling probe is arranged in the flue, and a plurality of sampling probes are arranged on the whole section of the flue.
Furthermore, a purging valve is arranged between the air outlet connecting port and the diluting module.
Preferably, the sampling depth switching valve is a five-way ball valve, and a switching control switch is arranged at the upper end of the five-way ball valve.
The beneficial technical effects are as follows:
the utility model discloses a set up sample probe rod one, sample probe rod two, sample probe rod three, sample probe rod four and sample depth diverter valve, can realize the multiple spot sample of the different degree of depth of unified sample connection, the regional flue gas composition concentration of the different degree of depth of understanding that can be accurate through arranging a plurality of probes at same cross section, can realize the accurate net sample of same cross section.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the switchable longitudinal multi-point sampling device based on the dilution method.
Fig. 2 is the structure diagram of the sampling depth switching valve of the present invention.
The following is the mark of the switchable longitudinal multi-point sampling device drawing based on the dilution method, and the product can be clearly understood through the drawing description and the corresponding mark.
In the figure: 1-a first sampling probe rod; 2-sampling probe rod two; 3-sampling probe rod three; 4-sampling probe rod four; 5-sampling depth switching valve; 6-one path of air inlet; 7-two paths of air inlets; 8-three air inlets; 9-four air inlets; 10-an air outlet connector; 11-a dilution module; 12-a purge valve; 13-switching the control switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a changeable vertical multiple spot sampling device based on dilution method, on the sampling probe, install sample probe rod 1, sample probe rod two 2, sample probe rod three 3 and sample probe rod four 4 on the sampling probe, the length of sample probe rod 1, sample probe rod two 2, sample probe rod three 3 and sample probe rod four 4 is according to the design of the depth in the power plant's flue, and the depth is not equal, and the sampling probe rod 1, sample probe rod two 2, sample probe rod three 3 and sample probe rod four 4's sampling point interval is the same.
Outside the flue, still including diluting module 11, the position before diluting module 11 is provided with sampling depth diverter valve 5, and sampling probe rod 1 is connected to sampling depth diverter valve 5's one way air inlet 6, and two way air inlets 7 are connected sampling probe rod two 2, and three routes air inlet 8 are connected sampling probe rod three 3, and four ways air inlet 9 is connected sampling probe rod four 4, and the connector 10 of giving vent to anger is connected to diluting module 11. Sampling at different depth positions is realized by switching the sampling depth switching valve 5. A purging valve 12 is arranged between the gas outlet connecting port 10 and the dilution module 11.
Referring to fig. 2, the sampling depth switching valve 5 is a five-way ball valve, a switching control switch 13 is arranged at the upper end of the five-way ball valve, and the switching control switch 13 controls the connection or the disconnection of the one-way air inlet 6, the two-way air inlet 7, the three-way air inlet 8 and the four-way air inlet 9 respectively.
This application is through utilizing five-way ball valve among the prior art, switches different circulation pipeline through five-way ball valve, realizes the sample of the different degree of depth positions in the flue.
When the sampling probe is used, a plurality of sampling probes can be installed on the whole flue section, and flue gas sampling at any position of the flue section is realized.
The utility model discloses to the vertical multiple spot sampling device of the changeable of power plant's flue gas based on dilution method, can realize the multiple spot sample of the different degree of depth of unified sample connection, the regional flue gas composition concentration of the different degree of depth of understanding that can be accurate through arranging a plurality of probes at same cross section, can realize the accurate net sample of same cross-section, provides the basic condition for the nitrogen oxide concentration of freeing the nitre export, provides the foundation for the accurate ammonia that spouts in upper reaches.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The utility model provides a changeable vertical multiple spot sampling device based on dilution method, a serial communication port, on the sampling probe, install sample probe rod (1) on the sampling probe, sample probe rod two (2), sample probe rod three (3) and sample probe rod four (4), sample probe rod one (1), sample probe rod two (2), the length depth of sample probe rod three (3) and sample probe rod four (4) is unequal, sample probe rod one (1), sample probe rod two (2), sample probe rod three (3) and the sample probe rod four (4) sampling point interval is the same, outside the flue, still including diluting module (11), the position before diluting module (11) is provided with sample depth diverter valve (5), sample probe rod one (1) is connected in sample probe rod (6) all the way of sample depth diverter valve (5), sample probe rod two (2) is connected in two way air inlet (7), sample probe rod three (3) are connected in three ways air inlet (8), four ways (9) are connected in sample probe rod four (4), connection mouth (10) are connected to the dilution module (11).
2. The switchable longitudinal multi-point sampling device based on the dilution method according to claim 1, wherein the sampling probe is placed in a flue, and a plurality of sampling probes are installed throughout a section of the flue.
3. Switchable longitudinal multi-point sampling device based on the dilution method according to claim 1, characterized in that a purge valve (12) is arranged between the gas outlet connection (10) and the dilution module (11).
4. The switchable longitudinal multipoint sampling device based on the dilution method of claim 1, characterized in that the sampling depth switching valve (5) is a five-way ball valve, the upper end of which is provided with a switching control switch (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222503331.XU CN218823468U (en) | 2022-09-21 | 2022-09-21 | Switchable longitudinal multipoint sampling device based on dilution method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222503331.XU CN218823468U (en) | 2022-09-21 | 2022-09-21 | Switchable longitudinal multipoint sampling device based on dilution method |
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| Publication Number | Publication Date |
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| CN218823468U true CN218823468U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222503331.XU Active CN218823468U (en) | 2022-09-21 | 2022-09-21 | Switchable longitudinal multipoint sampling device based on dilution method |
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| CN (1) | CN218823468U (en) |
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2022
- 2022-09-21 CN CN202222503331.XU patent/CN218823468U/en active Active
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