CN202351096U - Flue gas sampler - Google Patents

Flue gas sampler Download PDF

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Publication number
CN202351096U
CN202351096U CN2011203080141U CN201120308014U CN202351096U CN 202351096 U CN202351096 U CN 202351096U CN 2011203080141 U CN2011203080141 U CN 2011203080141U CN 201120308014 U CN201120308014 U CN 201120308014U CN 202351096 U CN202351096 U CN 202351096U
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CN
China
Prior art keywords
flue gas
filter core
gas sampler
operation valve
gas
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Expired - Lifetime
Application number
CN2011203080141U
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Chinese (zh)
Inventor
邹雄伟
熊春洪
刘德华
李军
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Lihe Technology Hunan Co Ltd
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Lihe Technology Hunan Co Ltd
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Priority to CN2011203080141U priority Critical patent/CN202351096U/en
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Publication of CN202351096U publication Critical patent/CN202351096U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model provides a flue gas sampler. The flue gas sampler comprises a probe tube and a filter element, wherein the filter element is accommodated in the probe tube; a first cavity is formed between the filter element and the probe tube; the probe tube is provided with a standard gas port which is penetrated through the side wall of the probe tube; and the standard gas port is communicated with the filter element through the first cavity. By using the flue gas sampler, the technical problem that the accurate judgment of an analyzer to the sample gas analysis is influenced by the incomplete consistency between the path through which a standard gas enters the analyzer and the path through which a flue gas enters the analyzer because the standard gas does not pass through the filter element when a system is calibrated can be solved; and therefore, the effect of improving the sample gas analysis accuracy of the analyzer is achieved.

Description

Flue gas sampler
Technical field
The utility model relates to fume emission monitoring field, especially, relates to a kind of flue gas sampler that is used to gather flue gas.
Background technology
In flue gas continuous blow-down monitoring field, utilize flue gas sampler that the flue gas in the flue is taken a sample, thereby obtain a kind gas.Thereby realize demarcation for the fixed pollution source smoke discharge continuous monitor system.
In the relevant prior art, flue gas sampler is when sampling, and appearance gas filters through the filter core in the flue gas sampler.Timing signal, gas is directly connected in the flue gas sampler through the gas mouth, without filter element filtering, directly flows into sampling pipe through thief hatch, is delivered to analyser again.
Know that from above gas carries out timing signal to system, gas is different with the external environment condition of appearance gas.Because appearance gas is through filter element filtering the time; The high temperature of flue gas sampler shell is increased to the temperature of appearance gas more than the dew point of steam on the one hand; The flue dust that is covered with of filter core has certain influence to the humidity and the dust concentration of the appearance gas through filter core on the other hand; When steam dewfall or humidity variation, the steam of dewfall can cause part gaseous contaminant loss in the flue gas with the humidity that reduces, thereby makes the test result of flue gas analyzer and flue gas actual concentration that certain deviation arranged.Yet gas is without filter core, but directly is delivered to analyser through thief hatch, causes kind gas different with the external environment condition of gas, ignored gas heat up and the dehydration dust removal process in loss, thereby the accuracy that the impact analysis appearance is analyzed appearance gas.
The utility model content
The utility model purpose is to provide a kind of flue gas sampler, solving gas that correlation technique exists without filter core, and the technical matters of the accuracy that the impact analysis appearance is analyzed appearance gas.
For realizing above-mentioned purpose, an aspect according to the utility model provides a kind of flue gas sampler; Comprise probe pipe and filter core; Filter core is contained in the probe pipe, forms first cavity between filter core and the probe pipe, and the probe pipe is provided with the gas mouth that runs through probe pipe sidewall; The gas mouth connects through first cavity and filter core.
Further, flue gas sampler also is provided with a thief hatch; Filter core comprises second cavity; The thief hatch and second cavity connect.
Further, flue gas sampler also comprises a heating jacket; The probe pipe box places in the heating jacket; The gas mouth runs through the sidewall of heating jacket.
Further, flue gas sampler also comprises an anti-blowpipe; Anti-blowpipe is contained in the filter core.
Further, flue gas sampler also comprises a connecting pipe, and connecting pipe comprises first port that is positioned at inlet end and second port that is positioned at the outlet side; Second port of the inlet end of anti-blowpipe and connecting pipe connects.
Further, first port of connecting pipe is provided with first joint; Flue gas sampler also comprises first operation valve and blowback draft tube; First joint connects with the blowback draft tube through first operation valve and is connected.
Further, the gas mouth is provided with second joint; The gas mouth is connected with first interface of first three-way solenoid valve through second joint; Second interface of first three-way solenoid valve is connected second operation valve and the 3rd operation valve respectively with the 3rd interface, and is connected with second anti-blowpipe and gas pipe respectively with the 3rd operation valve through second operation valve.
Further, flue gas sampler also is provided with a thief hatch; Filter core comprises second cavity; The thief hatch and second cavity connect.
Further, thief hatch is provided with the 3rd joint; Thief hatch is connected with first interface of second three-way solenoid valve through the 3rd joint; Second interface of second three-way solenoid valve is connected the 4th operation valve and the 5th operation valve respectively with the 3rd interface, and is connected with air hose and sampling pipe respectively with the 5th operation valve through the 4th operation valve.
Further, flue gas sampler also comprises a heating jacket; The probe pipe box places in the heating jacket; The gas mouth runs through the sidewall of heating jacket.
The utlity model has following beneficial effect:
The gas process filter core of flue gas sampler, thus the accuracy that analyser is analyzed appearance gas improved.
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the flue gas sampler of the utility model preferred embodiment;
Fig. 2 is the cross-sectional view of the flue gas sampler A-A direction of Fig. 1; And
Fig. 3 is a structural representation of using the flue gas sampler of the utility model preferred embodiment.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Please combine referring to Fig. 1 and Fig. 2, flue gas sampler comprises probe pipe 1 and filter core 3.Filter core 3 is contained in the probe pipe 1, and forms first cavity 15 between filter core 3 and the probe pipe 1.The internal cavities of filter core 3 forms second cavity 31.Probe pipe 1 is provided with the gas mouth 11 of the sidewall that runs through probe pipe 1, and this gas mouth 11 connects through first cavity 15 and filter core 3.
Please combine referring to Fig. 3, flue gas sampler also comprises an anti-blowpipe 7 and connecting pipe 9.Anti-blowpipe 7 is contained in the filter core 3.Connecting pipe 9 comprises first port 91 that is positioned at inlet end and second port 93 that is positioned at the outlet side.Second port 93 of the inlet end of anti-blowpipe 7 and connecting pipe 9 connects.First port, 91 places of connecting pipe 9 are provided with first joint 41, and this first joint 41 connects with blowback draft tube 2 through first operation valve 61 and is connected.
Gas mouth 11 is provided with second joint 43.Gas mouth 11 is connected with first interface of first three-way solenoid valve 81 through second joint 43.Second interface of first three-way solenoid valve 81 is connected with second anti-blowpipe 4 and is connected with gas pipe 6 through the 3rd operation valve 65 through second operation valve 63 respectively with the 3rd interface.
Flue gas sampler also is provided with a thief hatch 13, and thief hatch 13 directly connects with the filter core 3 second interior cavitys 31 and is connected.Thief hatch 13 connects with gas mouth 11 through second cavity 31 and first cavity 15.Thief hatch 13 is provided with the 3rd joint 45.Thief hatch 13 through the 3rd joint 45 and second three-way solenoid valve 83 first interface be connected.Second interface of second three-way solenoid valve 83 is connected with air hose 8 and is connected with sampling pipe 10 through the 5th operation valve 69 through the 4th operation valve 67 respectively with the 3rd interface.
Flue gas sampler also includes a heating jacket 5.Heating jacket 5 is nested with the lateral wall at probe pipe 1, and probe pipe 1 is heated.The gas mouth 11 of probe pipe 1 sidewall setting runs through the sidewall of heating jacket 5 simultaneously.
When using the flue gas sampler of the utility model, carry out flue gas sampling through flue gas sampler earlier.Detailed process is following: close first operation valve 61, the 4th operation valve 67 and first three-way solenoid valve 81, and open second three-way solenoid valve 83 and the 5th operation valve 69.At this moment, flue gas gets in the probe pipe 1 through probe mouth 17 from flue, thereby obtains a kind gas.The appearance gas after filter core 3 filters out a part of particle and foreign material, the thief hatch 13 of behind second cavity 31 of filter core 3, flowing through.Appearance gas enters into sampling pipe 10 through second three-way solenoid valve 83 and the 5th operation valve 69 successively.Sampling pipe 10 is delivered to analyser with acquired appearance gas.
Realize the demarcation of appearance gas through the flue gas sampler of the utility model again.Detailed process is following: close first operation valve 61, the 4th operation valve 67, second operation valve 63, and open the 3rd operation valve 65, first three-way solenoid valve 81, second three-way solenoid valve 83 and the 5th operation valve 69.At this moment, gas from gas pipe 6 in gas mouth 11 enters into first cavity 15 that forms between filter core 3 and the probe pipe 1.Gas is after filter core 3 filters, through second cavity 31 of filter core 3 thief hatch 13 of flowing through.Gas and then warp second three-way solenoid valve 83 and the 5th operation valve 69 enter into sampling pipe 10.Gas is delivered to analyser with sampling pipe 10 and appearance gas mixes, and the appearance gas in the follow-up analysis appearance.Afterwards, analyze the composition of appearance gas and the content of each composition through analyser again.
In other embodiments, the first, second, third, fourth and the 5th operation valve 61,63,65,67 and 69, first three-way solenoid valve 81 and second three-way solenoid valve 83 also can be set.During use, directly the gas pipe box is connected to second joint 43; Analyser directly is sheathed on the 3rd joint 45.Gas directly gets into gas mouths 11 through second joint 43, and successively through filter core 3, second cavity 31, thief hatch 13, flows into analyser again.
Filter core 3 is the critical component of the flue gas sampler of the utility model.Yet the impurity of appearance gas can stop up even corrode filter core 3.The flue gas sampler of the utility model can also be removed remaining impurities on the filter core 3 through the mode of blowback air, to improve the serviceable life and the filter effect of filter core 3.When the impurity removed with blowback air in the flue gas sampler because certain malleation is arranged in the chimney, the air pressure of blowback air and chimney just be pressed with certain counteracting, cause flue dust after filter core 3 comes off, still to remain in the cavity of flue gas sampler.The dust that when system begins to sample, remains in the cavity is withdrawn into again in the top layer of filter core 3, greatly reduces the effect of blowback.The utility model can overcome deficiency as above, utilizes the mode of blowback air to remove the impurity of filter core 3, specifically comprises following three grades of blowback processes:
The first order, first operation valve 61, second three-way solenoid valve 83 and the 4th operation valve 67 are all opened.The 5th operation valve the 69, the 1 solenoid valve 81 all cuts out.First blowback air blows to second cavity 31 of filter core 3 successively through connecting pipe 9 and anti-blowpipe 7 from blowback draft tube 2.Thereby first blowback air blows out through thief hatch 13 particle in the filter core 3 from air hose 8.Simultaneously, the bulky grain that is attached to probe pipe 1 inside surface also can blow off in flue.
The second level, first three-way solenoid valve 81 and second operation valve 63 are all opened.Second three-way solenoid valve 83, first operation valve 61 and the 3rd operation valve 65 are all closed.Second blowback air from second anti-blowpipe 4 in gas mouth 11 is blown into first cavity 15 that forms between filter core 3 and the probe pipe 1.Thereby blowing the particle that inside surface adhered to of the outside surface of filter core 3 and probe pipe 1 through probe mouthfuls 17, gets back in the flue second blowback air.
The third level, second three-way solenoid valve 83 and the 3rd operation valve 65 are all closed.Open first operation valve, 61, the first blowback airs earlier and blow to second cavity 31 of filter core 3 successively through connecting pipe 9 and anti-blowpipe 7, thereby the fine particle in filter core 3 aspects is blown out to the outside surface of filter core 3 from blowback draft tube 2.Then, open first three-way solenoid valve 81 and second operation valve 63.Second blowback air enters between filter core 3 and the probe pipe 1 through gas mouth 11 from second anti-blowpipe 4 and forms first cavity 15.The fine particle that second blowback air will be attached to filter core 3 outside surfaces blows to be got back in the flue.
The first, second, third, fourth and the 5th operation valve 61,63,65,67 and 69 of the utility model can be solenoid valve.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (10)

1. a flue gas sampler comprises probe pipe (1) and filter core (3), and said filter core (3) is contained in the said probe pipe (1), forms first cavity (15) between said filter core (3) and the said probe pipe (1), it is characterized in that,
Said probe pipe (1) is provided with the gas mouth (11) that runs through said probe pipe (1) sidewall;
Said gas mouth (11) connects through said first cavity (15) and said filter core (3).
2. flue gas sampler according to claim 1 is characterized in that,
Said flue gas sampler also is provided with a thief hatch (13);
Said filter core (3) comprises second cavity (31);
Said thief hatch (13) connects with said second cavity (31).
3. flue gas sampler according to claim 1 is characterized in that,
Said flue gas sampler also comprises a heating jacket (5);
Said probe pipe (1) is placed in the said heating jacket (5);
Said gas mouth (11) runs through the sidewall of said heating jacket (5).
4. flue gas sampler according to claim 1 is characterized in that,
Said flue gas sampler also comprises an anti-blowpipe (7);
Said anti-blowpipe (7) is contained in the said filter core (3).
5. flue gas sampler according to claim 4 is characterized in that,
Said flue gas sampler also comprises a connecting pipe (9), and said connecting pipe (9) comprises first port (91) that is positioned at inlet end and second port (93) that is positioned at the outlet side;
Second port (93) of the inlet end of said anti-blowpipe (7) and said connecting pipe (9) connects.
6. flue gas sampler according to claim 5 is characterized in that,
Said first port (91) of said connecting pipe (9) locates to be provided with first joint (41);
Said flue gas sampler also comprises first operation valve (61) and blowback draft tube (2);
Said first joint (41) connects with said blowback draft tube (2) through said first operation valve (61) and is connected.
7. flue gas sampler according to claim 1 is characterized in that,
Said gas mouth (11) is provided with second joint (43);
Said gas mouth (11) is connected through first interface of said second joint (43) with first three-way solenoid valve (81);
Second interface of said first three-way solenoid valve (81) is connected second operation valve (63) and the 3rd operation valve (65) respectively with the 3rd interface, and is connected with second anti-blowpipe (4) and gas pipe (6) respectively with the 3rd operation valve (65) through said second operation valve (63).
8. flue gas sampler according to claim 7 is characterized in that,
Said flue gas sampler also is provided with a thief hatch (13);
Said filter core (3) comprises second cavity (31);
Said thief hatch (13) connects with said second cavity (31).
9. flue gas sampler according to claim 8 is characterized in that,
Said thief hatch (13) is provided with the 3rd joint (45);
Said thief hatch (13) is connected through first interface of said the 3rd joint (45) with second three-way solenoid valve (83);
Second interface of said second three-way solenoid valve (83) is connected the 4th operation valve (67) and the 5th operation valve (69) respectively with the 3rd interface, and is connected with air hose (8) and sampling pipe (10) respectively with the 5th operation valve (69) through said the 4th operation valve (67).
10. flue gas sampler according to claim 9 is characterized in that,
Said flue gas sampler also comprises a heating jacket (5);
Said probe pipe (1) is placed in the said heating jacket (5);
Said gas mouth (11) runs through the sidewall of said heating jacket (5).
CN2011203080141U 2011-08-23 2011-08-23 Flue gas sampler Expired - Lifetime CN202351096U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203080141U CN202351096U (en) 2011-08-23 2011-08-23 Flue gas sampler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203080141U CN202351096U (en) 2011-08-23 2011-08-23 Flue gas sampler

Publications (1)

Publication Number Publication Date
CN202351096U true CN202351096U (en) 2012-07-25

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Application Number Title Priority Date Filing Date
CN2011203080141U Expired - Lifetime CN202351096U (en) 2011-08-23 2011-08-23 Flue gas sampler

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016103A (en) * 2012-12-20 2013-04-03 浙江浙大鸣泉科技有限公司 Particle filter used for exhaust gas analyzing device of diesel vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016103A (en) * 2012-12-20 2013-04-03 浙江浙大鸣泉科技有限公司 Particle filter used for exhaust gas analyzing device of diesel vehicle

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Addressee: Lihe Technology (Hunan) Co., Ltd. Finance

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Granted publication date: 20120725

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