CN205506454U - Flue flying dust sampling device - Google Patents
Flue flying dust sampling device Download PDFInfo
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- CN205506454U CN205506454U CN201620134592.0U CN201620134592U CN205506454U CN 205506454 U CN205506454 U CN 205506454U CN 201620134592 U CN201620134592 U CN 201620134592U CN 205506454 U CN205506454 U CN 205506454U
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Abstract
The utility model provides a flue flying dust sampling device, including fly -ash collector (1) and sampling tube (2) of seal installation in flue lateral wall (3), sampling tube (2) have sample section (21), the settling section that is located the flue outside that is located the flue, sample section (21) has sample connection (23), install in settling section department fly -ash collector (1), still include purging pipeline (4) that communicate with the settling section and air compressor (5) that communicate with purging pipeline (4), purging pipeline (4) have the control valve of sweeping (6). Need carry out the deashing when handling, open and sweep control valve (6) back highly -compressed air and get into sample section (21), backward sweep sample connection (23) through air compressor (5), realize cleaing away of sample connection (23) deposition fast, need not if demolish whole sampling tube (2) among the prior art, improve the convenience of flue flying dust sampling device clearance and clean efficiency.
Description
Technical field
This utility model relates to burning boiler technical field, particularly to a kind of fume duct fly ash sampler.
Background technology
In large-sized boiler in flue, fly ash sampling device typically can be set on rear side of air heater, to obtain flying dust in flue gas for the phosphorus content detecting in flying dust, provide reasonably instruct for adjusting the mixing ratio of air and fuel.
The probe tube of fly ash sampling device is usually horizontally inserted in flue, and, sample tap vertical with flow of flue gas direction just flow direction to flue gas.Find in actual applications, flue gas after air heater, temperature reduce and wherein steam coagulation be that steam and flow velocity reduce.When in flue gas, water content is excessive or can accumulate a large amount of flying dust in probe tube time flue gas flow rate is too low, cause probe tube blocking normally not sample, need from flue, disassemble sampler cleaning sample tap.
And dismantle probe tube and need expend substantial amounts of workload and make flue leak cigarette, also cannot carry out Fly ash sampling in deashing process.Therefore, it is possible in the case of not dismantling sampler, complete the dust stratification cleaning work of sample tap, it is those skilled in the art's one of problems of needing to solve.
Utility model content
For solution, the sample tap of probe tube being carried out deashing and need to dismantle the problem of whole fume duct fly ash sampler, this utility model provides a kind of new fume duct fly ash sampler.
This utility model provides a kind of fume duct fly ash sampler, including fly-ash collector and the probe tube being sealingly mounted at flue sidewall；Described probe tube has and is positioned at the sampling section of described flue, is positioned at the settling section outside flue；Described sampling section has sample tap；Described fly-ash collector is arranged at described settling section；Also include the scavenging pipeline connected with described settling section and the air compressor connected with described scavenging pipeline；Described scavenging pipeline has purging control valve.
Optionally, described settling section has interlude, the first bending segment and sedimentation principal piece；Described interlude directly connects with described sampling section；Described sedimentation principal piece is connected by described first bending segment with described interlude；Described fly-ash collector is arranged at described sedimentation principal piece；Described scavenging pipeline directly connects with described interlude and tilts to point to described sampling section.
Optionally, described probe tube also has the counter sample section being tightly connected with described flue sidewall；Described counter sample section is connected by the second bending segment with described sedimentation principal piece；The counter sample mouth of described counter sample section is positioned at described flue sidewall.
Optionally, described interlude and described counter sample section have the ring flange being tightly connected with flue sidewall.
Optionally, described sampling section has multiple described sample tap；What each described sample tap was directed to described flue comes cigarette direction.
Optionally, described purging control valve is solenoid electric valve；Also include being connected with described purging control valve and described air compressor respectively, for controlling described purging control valve and the controller of described air compressor.
Optionally, described controller is programmable logic controller (PLC).
The fume duct fly ash sampler that this utility model provides, has fly-ash collector and probe tube, and probe tube is tightly connected with flue sidewall；Probe tube has and is positioned at the sampling section of flue, is positioned at the settling section outside flue；Fly-ash collector is arranged at settling section.The flue gas that sample tap is collected in over sampling section enters into settling section and is settled down to fly-ash collector.In addition, also there is the scavenging pipeline connected with settling section and the air compressor of scavenging pipeline connection, when needing to carry out deashing process, after opening purging control valve, pressure-air enters sampling section, reverse blow sample tap through air compressor, quickly realize the removing of sample tap dust stratification, it is not necessary to as prior art removed whole probe tube, improving the convenience to the cleaning of fume duct fly ash sampler and sweeping efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the fume duct fly ash sampler schematic diagram described in this utility model is embodied as；
Wherein: 1-fly-ash collector, 2-probe tube, 21-sampling section, 23-sample tap, 24-interlude, 25-sedimentation principal piece, 26-the first bending segment, 27-counter sample section, 28-the second bending segment, 29-counter sample mouth, 20-ring flange, 3-flue sidewall, 4-scavenging pipeline, 5-air compressor, 6-purge control valve.
Detailed description of the invention
For making those skilled in the art be better understood from the technical solution of the utility model, the utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
If Fig. 1, Fig. 1 are the fume duct fly ash sampler schematic diagram described in this utility model is embodied as.Can be seen that, the fume duct fly ash sampler in this utility model includes fly-ash collector 1 and the probe tube 2 being connected with fly-ash collector 1；Probe tube 2 and flue sidewall 3 be tightly connected, have and be positioned at sampling section 21 inside flue, be positioned at the settling section outside flue, samples in section 21 and has sample tap 23；Fly-ash collector 1 is arranged at settling section.Flue gas sampled mouth 23 in flue flows to settling section after entering sampling section 21, and the dust in flue gas drops in fly-ash collector 1 in settling section sedimentation, it is achieved the collection of flying dust sample.
Additionally, fume duct fly ash sampler of the present utility model also includes the scavenging pipeline 4 connected with settling section and the air compressor 5 connected with scavenging pipeline 4, scavenging pipeline 4 has purging control valve 6.Under normal Fly ash sampling state, purging control valve 6 is closed, and flue gas can not enter in the pipeline on rear side of purging control valve 6.And when cannot normally sample due to dust stratification at sample tap 23, air compressor 5 works, purge control valve 6 opens, pressure-air is back to sample section 21 and spray from sample tap 23 through settling section.Due to reverse blow effect, it is positioned at the dust stratification of sample tap 23 side and is reversed and dispels so that probe tube 2 is unimpeded.Using above version, fume duct fly ash sampler just can complete to purge ash disposal work accordingly without unloading from flue, greatly reducing workload, improves flue sweeping efficiency.
In this utility model detailed description of the invention, settling section is divided into the sedimentation principal piece 25 that the interlude 24 being directly connected to sampling section 21 is connected with interlude 24；Interlude 24 and sampling section 21 be directly connected to, settle principal piece 25 and interlude 24 is connected by the first bending segment 26；Fly-ash collector 1 is arranged at sedimentation principal piece 25.Flue gas flow velocity after interlude 24 and the first bending segment 26 enter into sedimentation principal piece 25 substantially reduces, and the flying dust in flue gas is settled down to settle principal piece 25 and enter in fly-ash collector 1 because of action of gravity, completes the collection work of flying dust.And scavenging pipeline 4 directly connects with interlude 24, and tilt to point to sampling section 21 (namely it is obtuse angle with the angle of sampling section 21).So when purging operation, mainly blow to sample section 21 from the gases at high pressure of scavenging pipeline 4 blowout, improve the purging efficiency to sampling section 21.Understanding with reference to the accompanying drawings, in this utility model is embodied as, interlude 24, sampling section 21 and scavenging pipeline 4 are straight tube substantially, prevent bending from reducing the flow velocity of gases at high pressure.
Flue gas also has a large amount of gaseous state waste gas after sedimentation principal piece 25 sedimentation, also needs to discharge these waste gas after treatment.To this end, this utility model also has in being embodied as is tightly connected counter sample section 27, in counter sample section 27 is connected by the second bending segment 28 with sedimentation principal piece 25 with flue sidewall 3.It addition, the counter sample mouth 29 of counter sample section 27 is arranged at flue sidewall 3, owing to the flue gas flow rate of sedimentation principal piece 25 and counter sample section 27 is the most relatively low, counter sample mouth 29 is arranged on the suction function of flowing in the most available flue of flue sidewall 3 and is drawn into flue.
Settling section of the present utility model and counter sample section 27 have the ring flange 20 being tightly connected with flue sidewall 3, utilize Flange joint form to fix.For ensureing the reliability of Flange joint, flange connections has the sealing ring that such as politef is made.Certainly, in other are embodied as, it is possible to use the most threaded connection realizing each pipeline, but at corresponding sealing, dismounting is more inconvenient, is unfavorable for the maintenance of equipment.
Such as Fig. 1, the sampling section 21 during this utility model is embodied as has multiple sample tap 23, and after fixed installation fume duct fly ash sampler, what multiple sample taps 23 were directed to flue comes cigarette direction.In being embodied as, each sample tap 23 can be rounded sample mouth 23, it is possible to for rectangle sample tap 23, but as used rectangle sample tap 23 preferably corner areas to be set to chamfering, prevents corner areas dust stratification from incrementally increasing dust stratification area.
During this utility model is embodied as, purging control valve 6 uses solenoid electric valve；The controller additionally included and purge control valve 6 and air compressor 5 is connected, is remotely controlled to purge control valve 6 and air compressor 5 achieves that Automated condtrol by controller.In specifically used, controller can use programmable logic controller (PLC), and it can do Function Extension on the basis of the programmable logic controller (PLC) controlling burning boiler and realize automatic blowing control function.
Flue gas fly ash sampling device in above this utility model embodiment is described in detail.Apply specific case herein principle of the present utility model and embodiment are set forth; the explanation of above example is only intended to help to understand core concept of the present utility model; in the case of without departing from this utility model principle; also this utility model can be carried out some improvement and modification, these improve and modification also falls in protection domain of the present utility model.
Claims (7)
1. a fume duct fly ash sampler, including fly-ash collector (1) and the probe tube (2) that is sealingly mounted at flue sidewall (3)；Described probe tube (2) has and is positioned at sampling section (21) inside described flue, is positioned at the settling section outside flue；Described sampling section (21) has sample tap (23)；Described fly-ash collector (1) is arranged at described settling section；It is characterized in that: also include the scavenging pipeline (4) connected with described settling section and the air compressor (5) connected with described scavenging pipeline (4)；Described scavenging pipeline (4) has purging control valve (6).
Fume duct fly ash sampler the most according to claim 1, it is characterised in that: described settling section has interlude (24), the first bending segment (26) and sedimentation principal piece (25)；Described interlude (24) directly connects with described sampling section (21)；Described sedimentation principal piece (25) is connected by described first bending segment (26) with described interlude (24)；Described fly-ash collector (1) is arranged on described sedimentation principal piece (25) place；Described scavenging pipeline (4) directly connects with described interlude (24) and tilts to point to described sampling section (21).
Fume duct fly ash sampler the most according to claim 2, it is characterised in that: described probe tube (2) also has the counter sample section (27) being tightly connected with described flue sidewall (3)；Described counter sample section (27) is connected by the second bending segment (28) with described sedimentation principal piece (25)；The counter sample mouth (29) of described counter sample section (27) is positioned at described flue sidewall (3) place.
Fume duct fly ash sampler the most according to claim 3, it is characterised in that: described interlude (24) and described counter sample section (27) have the ring flange (20) being tightly connected with flue sidewall (3).
Fume duct fly ash sampler the most according to claim 4, it is characterised in that: described sampling section (21) has multiple described sample tap (23)；What each described sample tap (23) was directed to described flue comes cigarette direction.
6. according to the fume duct fly ash sampler described in any one of claim 1-5, it is characterised in that: described purging control valve (6) is solenoid electric valve；Also include being connected with described purging control valve (6) and described air compressor (5) respectively, for controlling described purging control valve (6) and the controller of described air compressor (5).
Fume duct fly ash sampler the most according to claim 6, it is characterised in that: described controller is programmable logic controller (PLC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134592.0U CN205506454U (en) | 2016-02-22 | 2016-02-22 | Flue flying dust sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134592.0U CN205506454U (en) | 2016-02-22 | 2016-02-22 | Flue flying dust sampling device |
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| Publication Number | Publication Date |
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| CN205506454U true CN205506454U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620134592.0U Active CN205506454U (en) | 2016-02-22 | 2016-02-22 | Flue flying dust sampling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132663A (en) * | 2019-04-29 | 2019-08-16 | 国网浙江省电力有限公司电力科学研究院 | A kind of smoke sampling auxiliary device suitable for high temperature positive flue |
| CN112229823A (en) * | 2020-09-09 | 2021-01-15 | 昆明醋酸纤维有限公司 | Online real-time detection device and method for fly waste of tow production line |
-
2016
- 2016-02-22 CN CN201620134592.0U patent/CN205506454U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132663A (en) * | 2019-04-29 | 2019-08-16 | 国网浙江省电力有限公司电力科学研究院 | A kind of smoke sampling auxiliary device suitable for high temperature positive flue |
| CN110132663B (en) * | 2019-04-29 | 2024-02-09 | 国网浙江省电力有限公司电力科学研究院 | Flue gas sampling auxiliary device suitable for high Wen Zhengya flue |
| CN112229823A (en) * | 2020-09-09 | 2021-01-15 | 昆明醋酸纤维有限公司 | Online real-time detection device and method for fly waste of tow production line |
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