CN201811937U - Intelligent high-stability online sulfur dioxide monitor - Google Patents
Intelligent high-stability online sulfur dioxide monitor Download PDFInfo
- Publication number
- CN201811937U CN201811937U CN2010202924181U CN201020292418U CN201811937U CN 201811937 U CN201811937 U CN 201811937U CN 2010202924181 U CN2010202924181 U CN 2010202924181U CN 201020292418 U CN201020292418 U CN 201020292418U CN 201811937 U CN201811937 U CN 201811937U
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- probe
- exhaust tube
- solenoid valve
- sensor
- blowback
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Abstract
The utility model relates to an intelligent high-stability online sulfur dioxide monitor, which is characterized in that a probe filter is arranged on a high-temperature blowback probe, the high-temperature blowback probe is connected with one end of a probe exhaust tube, the other end of the probe exhaust tube is connected with a miniature capacity-expanding cooling interface unit, a probe exhaust outlet electromagnetic valve is arranged on the probe exhaust tube, the miniature capacity-expanding cooling interface unit is connected with a blowback pump and provided with a blowback pump outlet electromagnetic valve, the miniature capacity-expanding cooling interface unit is respectively connected with a first electrochemical sensor and second electrochemical sensor by the aid of a first sensor exhaust inlet electromagnetic valve, an exhaust tube, a second sensor exhaust inlet electromagnetic valve and an exhaust tube, and the miniature capacity-expanding cooling interface unit is connected with the other ends of the exhaust tubes, so that a monitored gas loop is formed. The intelligent high-stability online sulfur dioxide monitor solves the problem of easiness in blocking because of lower temperature and higher humidity of flue gas, and accuracy and stability of the online sulfur dioxide monitor are improved greatly.
Description
Technical field
The utility model relates to a kind of intelligent high stable sulphuric dioxide on-line monitoring instrument.
Background technology
At present; country pays much attention to environmental protection; people's environmental consciousness constantly strengthens; particularly country formulates various conservation policies aspect atmosphere protection; wherein one is exactly to limit SO2 emissions; different tenure of use according to the boiler model with production, formulate corresponding emission standard, and the last boiler of will looking for novelty must be installed desulfurization facility and sulphuric dioxide on-line monitoring instrument.And data are passed to Environmental Protection Agency by wired or wireless network real-time.And the accuracy of sulfur dioxide monitor and stability directly relate to the authenticity and the accuracy of environmental protection index, and is significant to environment monitoring.SO2 on-line monitoring instrument mainly contains two measuring methods at present: first method is an extraction method, promptly by field probe and connecting pipe, with draw-off pump flue gas is extracted in the switch board in the outer analysis cabin of tens meters even hundreds of rice and analyzes, network with Environmental Protection Agency by microcomputer then; Second method is the method for directly surveying, integrated probe directly inserted in the flue measure, need not to extract flue gas, this method mainly is to adopt photoelectric technology, difficulty is bigger, some technical matters does not also have real the solution, and accuracy and stability are still waiting further raising, so present generally use is the extraction method measurement of comparative maturity.What it mainly adopted is that very ripe electrochemical sensor is main original paper, when the flue gas that extracts passes through electrochemical sensor, produces electric signal, and the software and hardware by single-chip microcomputer is converted into corresponding concentration numerical value again, is sent to Environmental Protection Agency.But this method exists: it is oversize 1, to extract pipeline, leaks easily and delay of response, and the sensitivity of instrument is lower, and also need to add companion's heat to pipeline winter in the north; 2, because sulphuric dioxide has corrosivity, draw-off pump is shorter serviceable life; 3, because flue gas itself has corrosivity, though through pre-service, flue dust is still bigger, so appearring in online sensor long-term use easily, sensitivity descends, in addition malfunctioning; Problems such as 4, lower owing to the monitoring point flue-gas temperature, humidity and dirt are bigger, and probe is easily stifled, and maintenance is very big.
Summary of the invention
The utility model has overcome the defective of above-mentioned existence, and purpose is for improving the accuracy and the stability of sulfur dioxide monitor, a kind of intelligent high stable sulphuric dioxide on-line monitoring instrument being provided.
The utility model intelligence high stable sulphuric dioxide on-line monitoring instrument content Description:
The utility model intelligence high stable sulphuric dioxide on-line monitoring instrument is characterized in that; Be by the filter probe device, high temperature blowback probe, blowback pump, the probe exhaust tube, gas outlet, No. 1 sensor exhaust tube, No. 2 sensor exhaust tubes, flue gas analyser, No. 1 sensor import solenoid valve of bleeding, No. 2 sensors import solenoid valve of bleeding, the probe outlet solenoid valve of bleeding, blowback pump outlet solenoid valve, No. 1 electrochemical sensor, No. 2 electrochemical sensors and miniature dilatation cooling interface unit constitute, on high temperature blowback probe, the filter probe device is set, high temperature blowback probe is connected with an end of probe exhaust tube, the other end of probe exhaust tube is connected with miniature dilatation cooling interface unit, on the probe exhaust tube outlet solenoid valve of bleeding of popping one's head in is set; Miniature dilatation cooling interface unit is connected with blowback pump, and blowback pump outlet solenoid valve is set, miniature dilatation cooling interface unit by No. 1 sensor bleed import solenoid valve, exhaust tube and No. 2 sensors bleed import solenoid valve, exhaust tube respectively be arranged on flue gas analyser in No. 1 electrochemical sensor, No. 2 electrochemical sensors be connected, and be connected with the other end of gas outlet, form the loop of monitored gas.
The utility model intelligence high stable sulphuric dioxide on-line monitoring instrument, solved because flue-gas temperature is lower, humidity is bigger, problems such as easy obstruction, through repeatedly experiment and the site test of long period prove, reach the requirement of design standards fully, improved the accuracy and the stability of sulphuric dioxide on-line monitoring instrument greatly.
Description of drawings
Fig. 1 is intelligent high stable sulphuric dioxide on-line monitoring instrument structural representation
Among the figure: the 1st, the filter probe device, the 2nd, high temperature blowback probe, the 3rd, blowback pump, the 4th, the probe exhaust tube, the 5th, gas outlet, 6 is No. 1 sensor exhaust tubes, 7 is No. 2 sensor exhaust tubes, the 8th, flue gas analyser, 9 is No. 1 sensor import solenoid valves of bleeding, 10 is No. 2 sensors import solenoid valves of bleeding, the 11st, the outlet solenoid valve of bleeding of popping one's head in, the 12nd, blowback pump outlet solenoid valve, 13 is No. 1 electrochemical sensors, 14 is No. 2 electrochemical sensors, the 15th, miniature dilatation cooling interface unit.
Embodiment
The utility model intelligence high stable sulphuric dioxide on-line monitoring instrument is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, intelligence high stable sulphuric dioxide on-line monitoring instrument, be by filter probe device 1, high temperature blowback probe 2, blowback pump 3, probe exhaust tube 4, gas outlet 5, No. 1 sensor exhaust tube 6, No. 2 sensor exhaust tubes 7, flue gas analyser 8, No. 1 sensor import solenoid valve 9 of bleeding, No. 2 sensors import solenoid valve 10 of bleeding, probe is bled and is exported solenoid valve 11, blowback pump outlet solenoid valve 12, No. 1 electrochemical sensor 13, No. 2 electrochemical sensors 14 and miniature dilatation cooling interface unit 15 constitute, on high temperature blowback probe 2, filter probe device 1 is set, high temperature blowback probe 2 is connected with an end of probe exhaust tube 4, the other end of probe exhaust tube 4 is connected with miniature dilatation cooling interface unit 15, and the outlet solenoid valve 11 of bleeding of popping one's head in is set on probe exhaust tube 4; Miniature dilatation cooling interface unit 15 is connected with blowback pump 3, and blowback pump outlet solenoid valve 12 is set, miniature dilatation cooling interface unit 15 by No. 1 sensor bleed import solenoid valve 9, exhaust tube 6 and No. 2 sensors bleed import solenoid valve 10, exhaust tube 7 respectively be arranged on flue gas analyser 8 in 13, No. 2 electrochemical sensors 14 of No. 1 electrochemical sensor be connected, and be connected with the other end of gas outlet 5, form the loop of monitored gas.
The method of operation of the utility model intelligence high stable sulphuric dioxide on-line monitoring instrument: when monitor comes into operation, the probe bleed the outlet solenoid valve 11 at first open, open No. 1 sensor import solenoid valve 9 of bleeding then, other battery valve is closed, differential pressure by the flow of flue gas generation, flue gas enters probe exhaust tube 4 by filtrator 1, enter miniature dilatation cooling interface unit 15 by the probe outlet solenoid valve 11 of bleeding again, enter sensor exhaust tube 6 No. 1 through No. 1 sensor import solenoid valve 9 of bleeding again, enter gas outlet 5 by No. 1 electrochemical sensor 13 then flue gas is discharged.After monitor moves 50 minutes, the probe bleed the outlet solenoid valve 11 close, blowback pump outlet solenoid valve is opened, blowback pump starts, No. 1 electrochemical sensor is purged cleaning 5 minutes, No. 1 sensor import solenoid valve 9 of bleeding cuts out after 5 minutes, probe is bled and is exported solenoid valve 11 unlatchings, filter probe device 1 is purged cleaning 5 minutes, stop blowback pump 3 operations after 5 minutes, close blowback pump outlet solenoid valve 12, open No. 2 sensors 10, No. 2 sensors of import solenoid valve of bleeding simultaneously and bring into operation.Whole service, stop, purge is identical with No. 1.No. 1 sensor and No. 2 sensor alternate runs in two hours like this, move in circles up to receive stop the monitor operating instruction after, close all solenoid valves, stop total system operation.
The utility model intelligence high stable sulphuric dioxide on-line monitoring instrument, be by:
1, flue gas analyser 8 is made the less hanging instrument of volume and be placed on the scene, directly extract flue gas at the scene, extract pipeline and shorten to about 1 to 2 meter by tens meters even hundreds of rice.
2, cancellation suction pump, flue gas is extracted in the dynamic pressure that directly utilizes the flue stream movable property to give birth to.
3, adopt standby each other two chemical sensors, adopt a sensor to monitor 50 minutes, stop 10 minutes, respectively sensor and filter probe device are carried out blowback and sweep, switch to another sensor again and monitor.
4, adopt the method for the heating of will popping one's head in, the flue gas that extracts in the probe is become dry flue gas by wet flue gas, and adopt the method cleaning of blowback, solved because flue-gas temperature is lower, humidity is bigger, and susceptible to plugging problem has improved the stability of sulphuric dioxide on-line monitoring instrument.
The utility model has passed through a large amount of experimental results show that, by taking above measure, preferably resolve the problem of above-mentioned existence, prove through test of many times and the site test of long period, the utility model intelligence high stable sulphuric dioxide on-line monitoring instrument has reached the requirement of design standards fully.
Claims (1)
1. intelligent high stable sulphuric dioxide on-line monitoring instrument, it is characterized in that: be by filter probe device (1), high temperature blowback probe (2), blowback pump (3), probe exhaust tube (4), gas outlet (5), No. 1 sensor exhaust tube (6), No. 2 sensor exhaust tubes (7), flue gas analyser (8), No. 1 sensor import solenoid valve (9) of bleeding, No. 2 sensors import solenoid valve (10) of bleeding, probe is bled and is exported solenoid valve (11), blowback pump outlet solenoid valve (12), No. 1 electrochemical sensor (13), No. 2 electrochemical sensors (14) and miniature dilatation cooling interface unit (15) constitute, on high temperature blowback probe (2), filter probe device (1) is set, high temperature blowback probe (2) is connected with an end of probe exhaust tube (4), the other end of probe exhaust tube (4) is connected with miniature dilatation cooling interface unit (15), and the outlet solenoid valve (11) of bleeding of popping one's head in being set on the exhaust tube (4) of popping one's head in; Miniature dilatation cooling interface unit (15) is connected with blowback pump (3), and blowback pump outlet solenoid valve (12) is set, miniature dilatation cooling interface unit (15) is connected by No. 1 sensor bleed import solenoid valve (10), exhaust tube (7) interior with being arranged on flue gas analyser (8) respectively No. 1 electrochemical sensor (13), No. 2 electrochemical sensors (14) of import solenoid valve (9), exhaust tube (6) and No. 2 sensors of bleeding, and be connected with the other end of gas outlet (5), form the loop of monitored gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202924181U CN201811937U (en) | 2010-08-06 | 2010-08-06 | Intelligent high-stability online sulfur dioxide monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202924181U CN201811937U (en) | 2010-08-06 | 2010-08-06 | Intelligent high-stability online sulfur dioxide monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811937U true CN201811937U (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202924181U Expired - Fee Related CN201811937U (en) | 2010-08-06 | 2010-08-06 | Intelligent high-stability online sulfur dioxide monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201811937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628567A (en) * | 2016-03-31 | 2016-06-01 | 大唐贵州发耳发电有限公司 | Dust detection device |
| CN109248558A (en) * | 2018-09-30 | 2019-01-22 | 庞博 | A method of removing sulfur dioxide gas |
-
2010
- 2010-08-06 CN CN2010202924181U patent/CN201811937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628567A (en) * | 2016-03-31 | 2016-06-01 | 大唐贵州发耳发电有限公司 | Dust detection device |
| CN109248558A (en) * | 2018-09-30 | 2019-01-22 | 庞博 | A method of removing sulfur dioxide gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |