CN204944994U - A kind of high-humidity gas fume dust concentration on-line measuring device - Google Patents
A kind of high-humidity gas fume dust concentration on-line measuring device Download PDFInfo
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- CN204944994U CN204944994U CN201520704069.2U CN201520704069U CN204944994U CN 204944994 U CN204944994 U CN 204944994U CN 201520704069 U CN201520704069 U CN 201520704069U CN 204944994 U CN204944994 U CN 204944994U
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Abstract
The utility model relates to a kind of high-humidity gas fume dust concentration on-line measuring device, for detecting the high-temperature flue gas dust concentration in flue in real time, described on-line measuring device comprises the drainage tube be fixedly installed on flue, the draining hole of this drainage tube one end stretches into flue inside, be provided with dust concentration meter and the adjustable speed fan that power of bleeding is provided successively from draining hole to other end direction in described drainage tube, two temperature and pressure current test pipes are also provided with: the first temperature and pressure current test pipe and the second temperature and pressure current test pipe in described drainage tube, the first described temperature and pressure current test pipe is arranged on the draining hole place of drainage tube, the second described temperature and pressure current test pipe is arranged between dust concentration meter and adjustable speed fan, described on-line measuring device also comprises connection control first temperature and pressure current test pipe respectively, dust concentration meter, the plc data of the second temperature and pressure current test pipe and adjustable speed fan gathers control box.Compared with prior art, the utility model has test accurately, the advantages such as reliability is high, easy to maintenance.
Description
Technical field
The utility model relates to a kind of on-line measuring device, especially relates to a kind of high-humidity gas fume dust concentration on-line measuring device.
Background technology
Be the difficult point of environmental monitoring technology always to the dust concentration measuring of high-humidity gas fume in stationary pollution source, generally adopt manual monitoring to detect its dust concentration with on-line monitoring two kinds of methods at present both at home and abroad.Manual monitoring adopts on-the-spot flue dust heating isokinetic sampling+laboratory computing method of weighing to obtain the dust concentration of high-humidity gas fume, the dust concentration that on-line monitoring then adopts flue dust to extract heat vaporized+optical absorption (or scattering) measuring-signal to obtain in high-humidity gas fume.Because tested flue has high humility (saturated vapor) characteristic, these two kinds of methods are existed in actual applications to some extent and lacks test defect.Manual monitoring also exist setup time length, complex operation, data age poor, to shortcomings such as operating personnel's technical requirement height; On-line monitoring measures because adopting optical method, optical lens there is frequent maintenance and coefficient calibration is difficult, chaff interference is large to its data influence in flue gas, cannot solving of the heating of high flow rate in flue gas is limited to during sampling, non-constant speed can only extract partial fume in flue and carry out heat optical measurement, make that online data error rate is large, operational reliability is poor, particularly larger at the error rate of high humidity flue occasion optical method measurement data.
Chinese patent 200810050862.X discloses a kind of exhaust gas dust and characteristic gas simultaneous on-line monitoring method and device, mainly contains shell, blower fan, U-shaped gas bypass pipe, transmission/reception, reflection unit, probe, data acquisition unit, data analysis system.Start blower fan, the laser light flue gas that chief of breech's mouth receiving trap is launched is reflected by reflection unit, laser after reflection is received device and receives, and pass to data acquisition controller through guide line, Multi-functional probe is measured characteristic gas, data acquisition controller is passed to by guide line, the exhaust gas dust data collected, characteristic gas data pass to flue gas analysis system by lead-in wire, exhaust gas dust and specialty systemizations concentration is measured by alternating current ejector half non-dispersion infrared line technology and magnetic pressure technology, the detection of the exhaust gas dust concentration of this patent is better ageing, but the Accuracy that the interfering material in flue gas measures infrared technology is large, test result error rate is large.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of high-humidity gas fume dust concentration on-line measuring device is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of high-humidity gas fume dust concentration on-line measuring device, for detecting the high-temperature flue gas dust concentration in flue in real time, described on-line measuring device comprises the drainage tube be fixedly installed on flue, the draining hole of this drainage tube one end stretches into flue inside, the other end is communicated with flue, be provided with dust concentration meter and the adjustable speed fan that power of bleeding is provided successively from draining hole to other end direction in described drainage tube, two temperature and pressure current test pipes are also provided with: the first temperature and pressure current test pipe and the second temperature and pressure current test pipe in described drainage tube, the first described temperature and pressure current test pipe is arranged on the draining hole place of drainage tube, the second described temperature and pressure current test pipe is arranged between dust concentration meter and adjustable speed fan, described on-line measuring device also comprises connection control first temperature and pressure current test pipe respectively, dust concentration meter, the plc data of the second temperature and pressure current test pipe and adjustable speed fan gathers control box.
The heating temperature control device heating drainage tube is also provided with between the inherent first temperature and pressure current test pipe of described drainage tube and dust concentration meter.
Be provided with dust filter unit between the inherent second temperature and pressure current test pipe of described drainage tube and adjustable speed fan, this dust filter unit is sealed by joint flange and drainage tube and fixes, by dust filter unit and periodic cleaning can avoid the invasion of dust to draw-out device.
Described dust filter unit is y-type filter, is convenient to safeguard change.
Described on-line measuring device also comprises and connects the first temperature and pressure current test pipe and the second temperature and pressure current test pipe respectively, plays the blowback control box that the effect of temperature and pressure current test pipe is cleaned in blowback, and this blowback control box also gathers control box with plc data and is connected.
Described drainage tube is fixed on flue by the first flange seal.
The first described temperature and pressure current test pipe is fixed by welding on drainage tube;
Described dust concentration meter is fixed on drainage tube by pipe thread;
Described adjustable speed fan clamps and is arranged in drainage tube.
On-line measuring device of the present utility model utilizes particle isokinetic sampling principle (V
1=V
2), extract part of smoke after heating, gasification from high humidity flue medium power, recorded the dust concentration in dry flue gas by the AC coupling dust concentration meter on drainage tube, adopt through number the on-line checkingi that control module realizes high-humidity gas fume dust concentration.
When running debugging, by blowback control box, plc data gathers control box energising, first starting adjustable speed fan by plc data collection control box operating unit makes it be in normal operation, then heating temperature control device is opened, make the heating muff rapid temperature increases on drainage tube to temperature required, start flue first temperature and pressure current test pipe successively, AC coupling dust concentration meter, second temperature and pressure current test pipe, it is made to be in test mode, two temperature and pressure current test pipes carry out from motion tracking according to the flow velocity signal of flue temperature and pressure current test pipe, by tracking results feedback command to adjustable speed blower fan, make it extract required drive to mate with flue collector flow velocity, AC coupling dust concentration meter measures the data of this period dust concentration automatically, plc data gathers control box and synchronously preserves these data, blowback control box passes through the time-program(me) of setting regularly to the first temperature and pressure current test pipe, pressure test pipe in second temperature and pressure current test pipe carries out blowback cleaning.Constant speed, heating sampling also its particle content of the real time measure of high-humidity gas fume can be realized by above-mentioned flow process.
Compared with prior art, the utility model has the following advantages:
(1) measurement accuracy and reliability high: the utility model by constant speed, heat the mode the real time measure flue gas particles content sampled, being consistent in the flow velocity of the exhaust gas dust that sampling is tested and temperature and flue, ensure that accuracy and the reliability of test result greatly;
(2) device is simple, good airproof performance, easy to maintenance: the parts such as drainage tube of the present utility model by detachable to clamp, the mounting means such as flange is fixed, pipe thread, can dismantle flexibly, also to a certain degree ensure that device leakproofness simultaneously, make easy maintenance, ensure that operability during use;
(3) long service life, applied widely: the corrosion resistant stainless steel of drainage tube system unit material selection of the present utility model and teflon material, improve the serviceable life of device, to soda acid require high, have the special occasions such as the flue gases duct of burn into high humidity particularly applicable, the high-humidity gas fume dust concentration on-line checkingi of the industries such as metallurgy, petrochemical industry, electric power, pharmacy can be widely used in.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-flue, 2-drainage tube, 3-first flange, 4-first temperature and pressure current test pipe, 5-heating temperature control device, 6-dust concentration meter, 7-second temperature and pressure current test pipe, 8-dust filter unit, 9-adjustable speed fan, 10-blowback control box, 11-PLC data acquisition control case.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
Embodiment 1
A kind of high-humidity gas fume dust concentration on-line measuring device, for detecting the high-temperature flue gas dust concentration in flue 1 in real time, on-line measuring device comprises and seals by the first flange 3 drainage tube 2 be fixed on flue 1, the draining hole of this drainage tube 2 one end stretches into flue 1 inside, the other end is communicated with flue 1, the first temperature and pressure current test pipe 4 is provided with successively from draining hole to the other end in drainage tube 2, heating temperature control device 5, dust concentration meter 6, second temperature and pressure current test pipe 7, dust filter unit 8, adjustable speed fan 9, dust concentration meter 6 is fixed on drainage tube 2 by pipe thread, first temperature and pressure current test pipe 4 is weldingly fixed on the draining hole place of drainage tube 2, dust filter unit 8 is y-type filter, adjustable speed fan 9 clamps and is arranged in drainage tube 2, on-line measuring device also comprises connection control first temperature and pressure current test pipe 4 respectively, dust concentration meter 6, the plc data of the second temperature and pressure current test pipe 7 and adjustable speed fan 9 gathers control box 11, and connect the first temperature and pressure current test pipe 4 and the second temperature and pressure current test pipe 7 respectively, play the blowback control box 10 of blowback cleaning temperature and pressure current test pipe effect, this blowback control box 10 also gathers control box 11 with plc data and is connected, dust filter unit 8, adjustable speed fan 9 seals fixing by joint flange and drainage tube 2.
Claims (8)
1. a high-humidity gas fume dust concentration on-line measuring device, for detecting the high-temperature flue gas dust concentration in flue (1) in real time, it is characterized in that, described on-line measuring device comprises the drainage tube (2) be fixedly installed on flue (1), the draining hole of this drainage tube (2) one end stretches into flue (1) inside, the other end is communicated with flue (1), the interior adjustable speed fan (9) being provided with dust concentration meter (6) from draining hole to other end direction successively and power of bleeding is provided of described drainage tube (2), two temperature and pressure current test pipes are also provided with: the first temperature and pressure current test pipe (4) and the second temperature and pressure current test pipe (7) in described drainage tube (2), the first described temperature and pressure current test pipe (4) is arranged on the draining hole place of drainage tube (2), the second described temperature and pressure current test pipe (7) is arranged between dust concentration meter (6) and adjustable speed fan (9), described on-line measuring device also comprises connection control first temperature and pressure current test pipe (4) respectively, dust concentration meter (6), the plc data of the second temperature and pressure current test pipe (7) and adjustable speed fan (9) gathers control box (11).
2. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 1, it is characterized in that, between the inherent first temperature and pressure current test pipe (4) of described drainage tube (2) and dust concentration meter (6), be also provided with the heating temperature control device (5) heating drainage tube (2).
3. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 1, it is characterized in that, be provided with dust filter unit (8) between the inherent second temperature and pressure current test pipe (7) of described drainage tube (2) and adjustable speed fan (9), this dust filter unit (8) seals fixing by joint flange and drainage tube (2).
4. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 3, is characterized in that, described dust filter unit (8) is y-type filter.
5. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 1, it is characterized in that, described on-line measuring device also comprises and connects the first temperature and pressure current test pipe (4) and the second temperature and pressure current test pipe (7) respectively, plays the blowback control box (10) that the effect of temperature and pressure current test pipe is cleaned in blowback, and this blowback control box (10) also gathers control box (11) and is connected with plc data.
6. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 1, is characterized in that, described drainage tube (2) is fixed on flue (1) by the first flange (3) sealing.
7. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 1, is characterized in that, described dust concentration meter (6) is AC coupling dust concentration meter.
8. a kind of high-humidity gas fume dust concentration on-line measuring device according to claim 1, is characterized in that, the first described temperature and pressure current test pipe (4) is fixed by welding on drainage tube (2);
Described dust concentration meter (6) is fixed on drainage tube (2) by pipe thread;
Described adjustable speed fan (9) clamps and is arranged in drainage tube (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520704069.2U CN204944994U (en) | 2015-09-11 | 2015-09-11 | A kind of high-humidity gas fume dust concentration on-line measuring device |
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|---|---|---|---|
| CN201520704069.2U CN204944994U (en) | 2015-09-11 | 2015-09-11 | A kind of high-humidity gas fume dust concentration on-line measuring device |
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| CN204944994U true CN204944994U (en) | 2016-01-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806770A (en) * | 2016-04-29 | 2016-07-27 | 河南省日立信股份有限公司 | Instrument testing device capable of generating high temperature and high humidity |
| CN105806673A (en) * | 2016-05-06 | 2016-07-27 | 南京波瑞自动化科技有限公司 | Multipoint sampling device and multipoint sampling system for dust measurement of large section flue of power station |
| CN106323830A (en) * | 2016-08-15 | 2017-01-11 | 上海领萃环保科技有限公司 | High-humidity flue gas dust monitoring system and method thereof |
| CN106370573A (en) * | 2016-09-14 | 2017-02-01 | 石家庄瑞澳科技有限公司 | Heating extraction type smoke on-line detection system and corresponding detection method |
| CN106939891A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of intelligent quality non-return centrifugal pump of high leakproofness |
-
2015
- 2015-09-11 CN CN201520704069.2U patent/CN204944994U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806770A (en) * | 2016-04-29 | 2016-07-27 | 河南省日立信股份有限公司 | Instrument testing device capable of generating high temperature and high humidity |
| CN105806770B (en) * | 2016-04-29 | 2018-07-24 | 河南省日立信股份有限公司 | A kind of instrument experimental rig that high temperature and humidity occurs |
| CN105806673A (en) * | 2016-05-06 | 2016-07-27 | 南京波瑞自动化科技有限公司 | Multipoint sampling device and multipoint sampling system for dust measurement of large section flue of power station |
| CN106323830A (en) * | 2016-08-15 | 2017-01-11 | 上海领萃环保科技有限公司 | High-humidity flue gas dust monitoring system and method thereof |
| CN106370573A (en) * | 2016-09-14 | 2017-02-01 | 石家庄瑞澳科技有限公司 | Heating extraction type smoke on-line detection system and corresponding detection method |
| CN106939891A (en) * | 2017-05-04 | 2017-07-11 | 项光辉 | A kind of intelligent quality non-return centrifugal pump of high leakproofness |
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