CN108444774A - A kind of smoke dust sampling device - Google Patents
A kind of smoke dust sampling device Download PDFInfo
- Publication number
- CN108444774A CN108444774A CN201810592349.7A CN201810592349A CN108444774A CN 108444774 A CN108444774 A CN 108444774A CN 201810592349 A CN201810592349 A CN 201810592349A CN 108444774 A CN108444774 A CN 108444774A
- Authority
- CN
- China
- Prior art keywords
- tube
- sampling
- pipe
- air inlet
- smoke dust
- 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.)
- Withdrawn
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
- G01N2001/2261—Sampling from a flowing stream of gas in a stack or chimney preventing condensation (heating lines)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of smoke dust sampling devices, it includes sampling head and sampling pipe, sampling head is connected to sampling pipe fixation, the sampling pipe is also associated with filter device, the filter device includes shell, the first U-tube and the second U-tube, the air inlet of first U-tube, the gas outlet of the second U-tube are connected in sampling pipe two-port, it is provided with filter cylinder at the gas outlet of first U-tube, opposite both ends for being connected to shell, the lower part of shell connect condensate return pipe respectively for the gas outlet of the air inlet of second U-tube and the first U-tube.
Description
Technical field
The present invention relates to flue dust detection field, specially a kind of smoke dust sampling device.
Background technology
In to stationary source in flue dust and flue gas environmental monitoring, wherein fume/smoke monitor is often by environmental monitoring machine
Structure uses.Fume/smoke monitor is mainly to the dynamic pressure of flue, static pressure, flue-gas temperature, water capacity, oxygen content, gaseous pollutant
(such as：SO2, CO, CO2 etc.) measurement of concetration and particulate pollutant sampling.
According to the national standard of smoke dust sampling, (particulate matter measures and gaseous state in the exhaust of GB/T 16157-1996 fixed-contaminations
The pollutant method of sampling) requirement, in order to obtain representational sample, isokinetic sampling generally uses predicted velocity method, Pi Tuo
Four kinds of pipe parallel method, kinetic pressure balancing method, static balance method method of samplings.The country is main in terms of pipeline pollution particulate matter measurement at present
Carry out the monitoring of following several indexs：Flue dust (flue gas) sampling, smoke temperature test, water capacity test, temperature test, Pitot tube pressure
Power test etc..
Current each pollutant emission enterprise mostly uses wet method to remove harmful substance, therefore the exhaust gas discharged is generally containing big
Measure steam.In smoke dust sampling, inside a large amount of condensation vapor to sampling pipe, it is easy to it flows back on sampling head, pollutes filter membrane,
Being normally carried out for sampling is influenced, is currently mostly sampled using whole mode of heating, it is complicated, expend electric energy.It is how effectively anti-
The problem of only condensing aqueous reflux, improve simple operation and stability of instrument, becoming those skilled in the art's current urgent need to resolve.
Invention content
1. technical problems to be solved
For problems of the prior art, the purpose of the present invention is to provide a kind of smoke dust sampling devices, avoid filtering
The condensation water-soaked that cylinder is refluxed.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of smoke dust sampling device comprising sampling head and sampling pipe, sampling head are connected to sampling pipe fixation, and described adopts
Sample pipe is also associated with filter device, and the filter device includes shell, the first U-tube and the second U-tube, the first U
The air inlet of type pipe, the second U-tube gas outlet be connected in sampling pipe two-port, set at the gas outlet of the first U-tube
It is equipped with filter cylinder, the gas outlet of the air inlet of the second U-tube and the first U-tube opposite both ends for being connected to shell respectively, shell
Lower part connect condensate return pipe.
Further, first U-tube includes engraving hole inner and outer tubes, engraves formation condensation between the inner and outer tubes of hole
Water back cavity.
Further, the place that the sampling pipe is connect with the first U-tube air inlet, sampling pipe stretch into the first U-tube
Certain length in air inlet.
Further, the end set of the first U-tube air inlet has taper ash-stopping cap in the shell.
3. advantageous effect
Compared with the prior art, the advantage of the invention is that：The configuration of the present invention is simple, reasonable design are effectively avoided containing wet
The reflux of flue gas condensing water soaks filter cylinder and influences testing result, improves the stability of testing result.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
In figure, 1, sampling head, 2, sampling pipe, the 3, first U-tube, 4, shell, 5, ash-stopping cap, 6, condensate return pipe, 7,
Second U-tube.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments, it is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Embodiment 1：
A kind of smoke dust sampling device comprising sampling head 1 and sampling pipe 2, sampling head 1 is connected to the fixation of sampling pipe 2, described
Sampling pipe 2 be also associated with filter device, the filter device includes shell 4, the first U-tube 3 and the second U-tube 7, described
The air inlet of the first U-tube 3, the gas outlet of the second U-tube 7 be connected in 2 two-port of sampling pipe, the first U-tube 3
It is provided with filter cylinder 8 at gas outlet, the gas outlet of the air inlet of the second U-tube 7 and the first U-tube 3 is opposite respectively to be connected to shell
The both ends of body 4, the lower part connection condensate return pipe 6 of shell 4.
First U-tube 3 include engrave hole inner tube 32 and outer tube 31, engrave formed between hole inner tube 32 and outer tube 31 it is cold
Condensate back cavity, it is to have the pipeline for engraving hole on tube wall that this, which engraves hole inner tube 32, and condensed water is facilitated to be filled into condensed water time through engraving hole
Flow chamber.
The place that the sampling pipe 2 is connect with 3 air inlet of the first U-tube, sampling pipe 2 stretch into 3 air inlet of the first U types pipe
Certain length in mouthful.
The end set of first U-tube gas outlet mouthful has taper ash-stopping cap 5 in shell 4, mistake when equipment being avoided to stop sampling
The cigarette ash filtered in device is fallen after rise.
It is described above；It is merely preferred embodiments of the present invention；But scope of protection of the present invention is not limited thereto；
Any one skilled in the art is in the technical scope disclosed by the present invention；According to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change；Should all it cover within the scope of the present invention.
Claims (4)
1. a kind of smoke dust sampling device comprising sampling head and sampling pipe, sampling head are connected to sampling pipe fixation, and feature exists
It being also associated with filter device in, the sampling pipe, the filter device includes shell, the first U-tube and the second U-tube,
The air inlet of first U-tube, the gas outlet of the second U-tube are connected in sampling pipe two-port, the first U-tube
It is provided with filter cylinder at gas outlet, the gas outlet of the air inlet of the second U-tube and the first U-tube opposite shell that is connected to respectively
The lower part at both ends, shell connects condensate return pipe.
2. a kind of smoke dust sampling device according to claim 1, which is characterized in that first U-tube includes engraving hole
Inner and outer tubes engrave formation condensate return chamber between the inner and outer tubes of hole.
3. a kind of smoke dust sampling device according to claim 1 or 2, which is characterized in that the sampling pipe and first U-shaped
The place of pipe air inlet connection, sampling pipe stretch into certain length in the first U-tube air inlet.
4. a kind of smoke dust sampling device according to claim 3, which is characterized in that in the shell the first U-tube into
The end set of gas port has taper ash-stopping cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592349.7A CN108444774A (en) | 2018-06-11 | 2018-06-11 | A kind of smoke dust sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810592349.7A CN108444774A (en) | 2018-06-11 | 2018-06-11 | A kind of smoke dust sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108444774A true CN108444774A (en) | 2018-08-24 |
Family
ID=63206896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810592349.7A Withdrawn CN108444774A (en) | 2018-06-11 | 2018-06-11 | A kind of smoke dust sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444774A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224854A (en) * | 2018-11-09 | 2019-01-18 | 上海明华电力技术工程有限公司 | Denitrating flue gas gridding method rotation samples ammonia and nitrogen oxides monitoring device combining |
-
2018
- 2018-06-11 CN CN201810592349.7A patent/CN108444774A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224854A (en) * | 2018-11-09 | 2019-01-18 | 上海明华电力技术工程有限公司 | Denitrating flue gas gridding method rotation samples ammonia and nitrogen oxides monitoring device combining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |