CN104330357A - NH3 escape monitoring system and laser analyzer thereof - Google Patents
NH3 escape monitoring system and laser analyzer thereof Download PDFInfo
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- CN104330357A CN104330357A CN201410718072.XA CN201410718072A CN104330357A CN 104330357 A CN104330357 A CN 104330357A CN 201410718072 A CN201410718072 A CN 201410718072A CN 104330357 A CN104330357 A CN 104330357A
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Abstract
The invention provides an NH3 escape monitoring system and a laser analyzer thereof. The laser analyzer comprises a laser emitting device and a laser receiving device which are respectively installed on two opposite side walls of a chimney and further comprises a positioning piece which stretches across the two side walls, wherein the positioning piece is vertical to the flowing direction of smoke in the chimney and the laser emitting device and the laser receiving device are symmetrically arranged at two ends of the positioning piece respectively. The installation positions of the laser emitting device and the laser receiving device are limited by virtue of the positioning piece. By using two ends of the positioning piece as installation bases, as the laser emitting device and the laser receiving device are symmetrically arranged at two ends of the positioning piece respectively, the consistency of the installation directions of the laser emitting device and the laser receiving device are guaranteed, so that the focusing difficulty of the laser emitting device and the laser receiving device is lowered so as to further lower the difficulty of installation and debugging.
Description
Technical field
The present invention relates to flue gas monitoring technical field, more particularly, relate to a kind of NH
3escape monitoring system and laser analyzer thereof.
Background technology
NH
3escape monitoring system is used for monitoring to system for desulfuration and denitration and with the flue gas that solid, the liquid power plant boiler that is fuel or raw material or domestic waste incineration produce, and then realizes the monitoring to amount of ammonia slip.NH
3the laser analyzer of escape monitoring system can provide place for laser measurement, and completes NH in flue gas
3the monitoring of content.
Above-mentioned laser analyzer comprises laser beam emitting device and laser receiver, and both are separately positioned on two relative sidewalls of chimney; During work, the laser beam that laser beam emitting device is launched is by being received by laser receiver after the flue gas in chimney, and Emission Lasers and reception laser contrast by computing machine, determine NH in flue dust according to the damping capacity of laser
3the size of content.
But, existing laser beam emitting device and laser receiver are all loaded on chimney both sides respectively by mounting flange, so, comparatively be difficult to ensure the consistance of card laser beam emitting device and laser receiver installation direction, cause laser beam emitting device and laser receiver more difficult to light ratio, increase the difficulty of Installation and Debugging.
In sum, how to reduce laser beam emitting device and laser receiver to light difficulty, to reduce the difficulty of Installation and Debugging, be current those skilled in the art technical matterss urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of NH
3the laser analyzer of escape monitoring system, with reduce laser beam emitting device and laser receiver to light difficulty, and then reduce the difficulty of Installation and Debugging.
Another object of the present invention is to provide a kind of NH with above-mentioned laser analyzer
3escape monitoring system.
In order to achieve the above object, the invention provides following technical scheme:
A kind of NH
3the laser analyzer of escape monitoring system, comprises for being arranged on laser beam emitting device on two relative sidewalls of chimney and laser receiver respectively; Also comprise across the keeper between two described sidewalls, described keeper is perpendicular to the flow direction of flue gas in described chimney, and described laser beam emitting device and described laser receiver are symmetricly set on the two ends of described keeper respectively.
Preferably, in above-mentioned laser analyzer, described keeper is the measuring tube arranged in the horizontal direction, and the laser beam that described laser beam emitting device is launched is parallel to the central axis of described measuring tube.
Preferably, in above-mentioned laser analyzer, described laser beam is injected by one end of the endoporus of described measuring tube and is injected to described laser receiver by the other end of described endoporus; And the top sidewall of described measuring tube offering the air admission hole entered for described flue gas, the bottom sidewall of described measuring tube is provided with the venthole flowed out for described flue gas, described air admission hole is all communicated with described endoporus with described venthole.
Preferably, in above-mentioned laser analyzer, described air admission hole is multiple, and described venthole is one, and each described air admission hole is all oppositely arranged up and down with described venthole.
Preferably, in above-mentioned laser analyzer, described air admission hole is equally divided into two rows, often arranges described air admission hole and is all distributed on the top sidewall of described measuring tube along the central axial direction being parallel to described measuring tube.
Preferably, in above-mentioned laser analyzer, described measuring tube is also provided with reinforcement.
Preferably, in above-mentioned laser analyzer, described reinforcement is arranged on the top sidewall of described measuring tube.
Preferably, in above-mentioned laser analyzer, described reinforcement is the bar shaped muscle of the central axis being parallel to described measuring tube.
As can be seen from above-mentioned technical scheme, NH provided by the invention
3the laser analyzer of escape monitoring system, comprises for being arranged on laser beam emitting device on two relative sidewalls of chimney and laser receiver respectively; Across the keeper between two above-mentioned sidewalls, this keeper is perpendicular to the flow direction of flue gas in chimney, and laser beam emitting device and laser receiver are symmetricly set on the two ends of keeper respectively.
The present invention utilizes the installation site of keeper to laser beam emitting device and laser receiver to limit, using the two ends of keeper as reference for installation, the consistance of laser beam emitting device and laser receiver installation direction is ensured by the two ends enabling laser beam emitting device and laser receiver be symmetricly set on keeper respectively, so reduce laser beam emitting device and laser receiver to light difficulty, and then reduce the difficulty of Installation and Debugging.
Present invention also offers a kind of NH
3escape monitoring system, comprises laser analyzer, and described laser analyzer is any one laser analyzer above-mentioned, because above-mentioned laser analyzer has above-mentioned effect, has the NH of above-mentioned laser analyzer
3escape monitoring system has same effect, therefore repeats no more herein.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the NH that the embodiment of the present invention provides
3the front view of the laser analyzer of escape monitoring system;
Fig. 2 is the NH that the embodiment of the present invention provides
3the side view of the laser analyzer of escape monitoring system.
Embodiment
Embodiments provide a kind of NH
3the laser analyzer of escape monitoring system, reduce laser beam emitting device and laser receiver to light difficulty, and then reduce the difficulty of Installation and Debugging.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to accompanying drawing 1-2, the NH that the embodiment of the present invention provides
3the laser analyzer of escape monitoring system, comprises for being arranged on laser beam emitting device 1 on two relative sidewalls of chimney 2 and laser receiver 3 respectively; Across the keeper between two above-mentioned sidewalls, this keeper is perpendicular to the flow direction of flue gas in chimney 2, and laser beam emitting device 1 and laser receiver 3 are symmetricly set on the two ends of keeper respectively.
The present invention utilizes the installation site of keeper to laser beam emitting device 1 and laser receiver 3 to limit, using the two ends of keeper as reference for installation, the consistance of laser beam emitting device 1 and laser receiver 3 installation direction is ensured by the two ends enabling laser beam emitting device 1 and laser receiver 3 be symmetricly set on keeper respectively, so reduce laser beam emitting device 1 and laser receiver 3 to light difficulty, and then reduce the difficulty of Installation and Debugging.
In addition, above-mentioned keeper can also play good supporting role to laser beam emitting device 1 and laser receiver 3 respectively, so the skew that laser beam emitting device 1 and laser receiver 3 occur at high temperature case location can be reduced, and then the situation that minimizing light path deforms, improve the stability of DATA REASONING.
In the present invention one specific embodiment, the measuring tube 4 that keeper is preferably arranged in the horizontal direction, the laser beam that laser beam emitting device 1 is launched is parallel to the central axis of measuring tube 4.During application, first laser beam emitting device 1 and laser receiver 3 are arranged on respectively the consistance of the two ends of measuring tube 4 position of both guarantees relative measurement pipe 4, then keeper is arranged between sidewall that chimney 2 vertically arranges, this place's flue gas vertically flows from top to bottom, the direction of arrow in Fig. 1 and Fig. 2 corresponding to flue gas is the flow direction of flue gas, flue dust self gravitation in flue gas can be reduced like this on the impact of measurement result, the generation of measuring tube 4 stopping state can be reduced simultaneously.
It will be understood by those skilled in the art that, under the size of keeper does not affect the prerequisite of flow of flue gas, keeper can also be flat board, arc or backstay etc., as long as the two ends that can meet keeper are mutually concordant, to reach the conforming effect of same guarantee laser beam emitting device 1 and laser receiver 3 installation direction, the present invention repeats no longer one by one.
Further, laser beam is injected by one end of the endoporus of measuring tube 4 and is injected to laser receiver 3 by the other end of endoporus; And the top sidewall of measuring tube 4 offering the air admission hole 41 entered for flue gas, the bottom sidewall of measuring tube 4 is provided with the venthole 42 flowed out for flue gas, air admission hole 41 is all communicated with endoporus with venthole 42.The present invention is led by the transmission path of endoporus to laser beam of measuring tube 4, effectively reduces the distortion of optical path, ensure that the stability of optical path.The air admission hole 41 at above-mentioned measuring tube 4 top can make the part in flue gas flow through measuring tube 4, reduces dust concentration in measuring tube 4, improves the property passed through of laser.During work, the laser beam that laser beam emitting device 1 is launched is injected the endoporus of measuring tube 4 by one end of measuring tube 4, inject to laser receiver 3, calculate NH in flue gas by the decay of laser signal through after dust concentration flue gas low in measuring tube 4
3containing numerical quantity.
Laser analyzer of the present invention only makes the part in flue gas enter into measuring tube 4, make under high dust application scenario (as thermal power plant etc.), still lower dust concentration can be kept in measuring tube 4, considerably increase the penetrability of laser, ensure that the intensity of measuring-signal, and then improve the accuracy of measurement result, expand NH
3the usable range of escape monitoring system.
Preferably, in above-mentioned laser analyzer, air admission hole 41 is multiple, and venthole 42 is one, and each air admission hole 41 is all oppositely arranged with venthole about 42.As shown in Figure 1, flue gas enters measuring tube 4 by each air admission hole 41 of measuring tube 4 top, flows out measuring tube 4 by the venthole 42 bottom measuring tube 4; Air admission hole 41 is set to multiple less hole by the present embodiment, reduces flue gas intake, increases dilution ratio, can ensure the charge dilution function of flue gas.Venthole 42 is set to a larger hole, is convenient to the outflow of flue gas, strengthens the discharge of flue gas, the flue dust be gathered in measuring tube 4 can be reduced, and then reduce the situation that measuring tube 4 occurs to block.
In order to make the flue gas concentration homogenising in measuring tube 4, above-mentioned air admission hole 41 is equally divided into two rows, often arranges air admission hole 41 and is all distributed on the top sidewall of measuring tube 4 along the central axial direction being parallel to measuring tube 4.Concrete, above-mentioned each air admission hole 41 is circular port; So, the rate of propagation of flue gas in measuring tube 4 flowed into from each air admission hole 41 is even, improves the accuracy of measurement.And above-mentioned air admission hole 41 size and shape is identical respectively, be convenient to processing.
Above-mentioned measuring tube 4 is also provided with reinforcement 5, improves the strength and stiffness of measuring tube 4, thus reduce the deflection that measuring tube 4 occurs in the case of a high temperature, therefore can ensure the stable of laser beam light path, make DATA REASONING more reliable and stable.
Reinforcement 5 is preferably arranged on the top sidewall of measuring tube 4.Concrete, above-mentioned reinforcement 5 is welded on the top of measuring tube 4.The present embodiment makes reinforcement 5 be positioned at measuring tube 4 top, effectively can improve the intensity of measuring tube 4 on the one hand, reduce the distortion because chimney 2 span, hot environment cause, keep the stable of light path, the abrasion resistance of product can be improved on the other hand, extend life of product.In addition, the extruding be subject to due to measuring tube 4 top is comparatively large, and be comparatively easily bent downwardly, above-mentioned reinforcement 5 can improve the degree that is squeezed at measuring tube 4 top, reduces the distortion of measuring tube 4.
For the ease of processing and installation, above-mentioned reinforcement 5 is further for being parallel to the bar shaped muscle of the central axis of measuring tube 4.Certainly, above-mentioned reinforcement 5 can also be arranged on position on the upper side in the middle part of measuring tube 4.
The embodiment of the present invention additionally provides a kind of NH
3escape monitoring system, comprise laser analyzer, the laser analyzer that this laser analyzer provides for above-mentioned any one embodiment, reduce laser beam emitting device 1 and laser receiver 3 to light difficulty, and then reduce the difficulty of Installation and Debugging, its advantage is brought by laser analyzer, and concrete please refer to part relevant in above-described embodiment, just repeats no more at this.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a NH
3the laser analyzer of escape monitoring system, comprises for being arranged on laser beam emitting device (1) on two relative sidewalls of chimney (2) and laser receiver (3) respectively; It is characterized in that, also comprise across the keeper between two described sidewalls, described keeper is perpendicular to the flow direction of described chimney (2) interior flue gas, and described laser beam emitting device (1) and described laser receiver (3) are symmetricly set on the two ends of described keeper respectively.
2. laser analyzer as claimed in claim 1, it is characterized in that, described keeper is the measuring tube (4) arranged in the horizontal direction, and the laser beam that described laser beam emitting device (1) is launched is parallel to the central axis of described measuring tube (4).
3. laser analyzer as claimed in claim 2, it is characterized in that, described laser beam is injected by one end of the endoporus of described measuring tube (4) and is injected to described laser receiver (3) by the other end of described endoporus; And the top sidewall of described measuring tube (4) offers the air admission hole (41) entered for described flue gas, the bottom sidewall of described measuring tube (4) is provided with the venthole (42) flowed out for described flue gas, described air admission hole (41) is all communicated with described endoporus with described venthole (42).
4. laser analyzer as claimed in claim 3, it is characterized in that, described air admission hole (41) is for multiple, and described venthole (42) is one, and each described air admission hole (41) is all oppositely arranged up and down with described venthole (42).
5. laser analyzer as claimed in claim 4, it is characterized in that, described air admission hole (41) is equally divided into two rows, often arranges described air admission hole (41) and is all distributed in along the central axial direction being parallel to described measuring tube (4) on the top sidewall of described measuring tube (4).
6. the laser analyzer as described in any one of claim 3-5, is characterized in that, described measuring tube (4) is also provided with reinforcement (5).
7. laser analyzer as claimed in claim 6, it is characterized in that, described reinforcement (5) is arranged on the top sidewall of described measuring tube (4).
8. laser analyzer as claimed in claim 6, it is characterized in that, described reinforcement (5) is for being parallel to the bar shaped muscle of the central axis of described measuring tube (4).
9. a NH
3escape monitoring system, comprises laser analyzer, it is characterized in that, described laser analyzer is the laser analyzer as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718072.XA CN104330357A (en) | 2014-12-01 | 2014-12-01 | NH3 escape monitoring system and laser analyzer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718072.XA CN104330357A (en) | 2014-12-01 | 2014-12-01 | NH3 escape monitoring system and laser analyzer thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104330357A true CN104330357A (en) | 2015-02-04 |
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ID=52405127
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410718072.XA Pending CN104330357A (en) | 2014-12-01 | 2014-12-01 | NH3 escape monitoring system and laser analyzer thereof |
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| CN (1) | CN104330357A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388112A (en) * | 2015-12-15 | 2016-03-09 | 郑州光力科技股份有限公司 | Diffusion-type laser gas concentration measuring tube and measuring system for high temperature environment |
| CN106124406A (en) * | 2016-08-23 | 2016-11-16 | 合肥金星机电科技发展有限公司 | The in situ detection device of flue gas |
| CN109555171A (en) * | 2018-12-26 | 2019-04-02 | 温州市大众城建监理有限公司 | A kind of deep basal pit horizontal displacement continuous monitor system and method |
| CN109696522A (en) * | 2018-05-31 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | A kind of Denitration in Boiler flue gas the escaping of ammonia detector with temperature difference adaptation function |
| CN110702154A (en) * | 2019-09-20 | 2020-01-17 | 中国二十冶集团有限公司 | Alignment installation method of pipeline detection device |
-
2014
- 2014-12-01 CN CN201410718072.XA patent/CN104330357A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388112A (en) * | 2015-12-15 | 2016-03-09 | 郑州光力科技股份有限公司 | Diffusion-type laser gas concentration measuring tube and measuring system for high temperature environment |
| CN106124406A (en) * | 2016-08-23 | 2016-11-16 | 合肥金星机电科技发展有限公司 | The in situ detection device of flue gas |
| CN106124406B (en) * | 2016-08-23 | 2020-01-03 | 合肥金星机电科技发展有限公司 | In-situ detection device for flue gas |
| CN109696522A (en) * | 2018-05-31 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | A kind of Denitration in Boiler flue gas the escaping of ammonia detector with temperature difference adaptation function |
| CN109555171A (en) * | 2018-12-26 | 2019-04-02 | 温州市大众城建监理有限公司 | A kind of deep basal pit horizontal displacement continuous monitor system and method |
| CN110702154A (en) * | 2019-09-20 | 2020-01-17 | 中国二十冶集团有限公司 | Alignment installation method of pipeline detection device |
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Application publication date: 20150204 |